INTRODUCTION.

Tis Volume gives an account of seven Families of Serricorn Coleoptera. The

Buprestide have been dealt with by Mr. C. O. Waterhouse, the Throscide and

Eucnemide by Dr. G. H. Horn, and the Elateride, Cebrionide, Rhipidoceride, and

Dascillide by myself. At the end of the Volume a supplementary Appendix to the

Buprestide, Throscide, and Eucnemide is given, contributed by Mr. Waterhouse and

myself.

The total number of species enumerated for the whole of the Families is 1353, of

which 805 are described as new, the genera‘ numbering 178, with twenty-eight new.

Some general remarks on the Central-American Buprestide, hroscide, and Eucnemide

are given on pp. 1, 193, and 210 respectively, and it will only be necessary to give here

a summary of the remaining Families, with a short analysis of the others.

The Buprestide is one of the larger Families of Coleoptera, the total number of

species for the whole world (Kerremans, 1891) being 4201, belonging to 185 genera.

The number of species enumerated by Mr. Waterhouse in the first part of this Volume

is 434, 300 of these being described as new, the number of genera being forty-eight,

with four new. But, since the conclusion of his work, in December 1889, no fewer

than fifty-four species from Mexico, and one genus, have been added by M. Kerremans

and the late E. Dugés, and two species from the same country have been described

by Mr. Waterhouse. It may be remarked, however, that most of the insects

described by M. Kerremans were found in the refuse of imported Mexican tobacco in

Paris, and that their origin in every case requires corroboration (tobacco from Brazil,

&c. being stowed in the same building); and that Dugés paid very little attention

to Mr. Waterhouse’s work, hence many of his species are certain to prove synonymous

with others previously described. A list of these is given in the Appendix, with some

remarks by Mr. Waterhouse, who has also added descriptions of two others on pp. 664

and 666 respectively. The total number of species known from America north of

Mexico is about 280 (Henshaw, 1895), belonging to thirty-two genera.

vl INTRODUCTION.

The Throscide (or Trixagide), at the present time (1897), include about 160

described species from all parts. Of this number, forty-three species, belonging to

four genera, are recorded by Dr. Horn from within our limits, one genus and eighteen

species being characterized as new. One species is added in the Appendix. America

north of Mexico has eighteen species and three genera of this family.

The Eucnemide is a widely distributed Family, with a total number of about 475

species and ninety genera (1890). Dr. Horn enumerates 108 species, belonging to

thirty-two genera, from Central America, six genera and fifty-six species being treated

as new. ‘Two genera and five species (three new) are added in the Appendix. Some

remarks on the geographical distribution of the American genera are given on p. 210.

America north of Mexico has (Henshaw, 1895) fifty-seven species and twenty-three

genera of this family. Most of the species are very rare in collections.

The Elaterida, another very extensive Family of Coleoptera, is apparently not so

numerous in species (taking the whole world) as the Buprestidw, but includes a much

greater number of genera; the disproportion in the numbers of the described species

of the two Families is, however, illusory, and entirely due to the fact that the brilliantly

coloured Buprestide are much greater favourites with collectors. ‘The total number

of species from all parts is given by Dr. Candéze (1891) as 3960, belonging to 238

genera. The number of species here enumerated from Central America is 651, 290 of

which are described as new, these belonging to sixty-seven genera, with nine new.

America north of Mexico has about 500 species (Henshaw, 1895), with fifty genera.

This Family having been exhaustively monographed by Dr. E. Candéze, it was to be

expected that most of the conspicuous forms would be known; nevertheless, amongst

the smaller species a great deal had to be done. ‘The genera most numerous in species

within our limits are—ZIschiodontus (45), Agriotes (39), Chalcolepidius (33), Mono-

crepidius (82), Holus (80), Anoplischius and Glyphonyx (each 25), Horistonotus (20),

Hemicrepidius (19), and Pyrophorus and Anchastus (each 16). Apart from these, the

most characteristic are Tomocephalus, Physorhinus, Hypodesis, and Psiloniscus. Oistus

and Dodecactenus, each containing two or three conspicuous species, are peculiar to

Central America. Semiotus, Pyrophorus, Pomachilius, and Cardiorhinus, each containing

a large number of species in Tropical South America (80, 85, 54, and 36 species

respectively), are poorly represented within our limits (the numbers being 9, 16, 2,

and 1), and Cosmesus (with 49 South-American species) is entirely absent. Chalcolepidius,

the giants of the family in America, on the other hand, has its headquarters, as it

INTRODUCTION. vii

were, in Central America, fully one-half of the described species being found there, many

of these not extending beyond our limits. Semiotus, too, though poor in species, is

represented by some of the largest known members of the genus, several of these (like

Chalcolepidius) being very much in evidence in the forest clearings in the low country.

Attention has already been called to the excessive rarity of the males of the genera

Chalcolepidius and Semiotus, and to the fact that the sexual characters of the last-

mentioned genus have been misunderstood, the supposed males being really females.

The extraordinary geographical distribution of Meristhus scobinula—China, Southern

United States, and Central America,—doubted by Dr. Candéze, has been verified, but

no explanation can be offered to account for it. The wide distribution in America of

Hemirhipus fascicularis and Orthostethus infuscatus—both large and conspicuous.

insects—is also worthy of comment.

To summarize, there is little to distinguish the Elateride of Central America from

those of Tropical South America, most of the genera being common to both regions,

and the endemic genera exceedingly few in number; but they differ greatly from those

of America north of Mexico, as shown by the larger North-American genera, Corymbites

having eighty, later forty-nine, Melanotus forty-four, and Limonius thirty-one

species respectively—the numbers for Central America being one, one, five, and two,—

and the absence in Central America of such genera as Melanactes, Sericosomus,

Pityobius, &c. North America, moreover, has only one Pyrophorus and three

Ischiodontus, and no Semiotus. My labours on this Family have been greatly

facilitated by free access to the very extensive collection of Elateride formed by the

late E. W. Janson ; and also by the assistance of Dr. Candéze, the well-known veteran

specialist in this group, who has been kind enough to lend the types of the whole of

the described Central-American Elateridz now in his possession.

The Cebrionide is a Family containing but few species, mostly belonging to two

genera, Cebrio and Scaptolenus, chiefly remarkable from the great rarity of the females,

which are either apterous or have abbreviated wings, the males, too, of many of them

being rarely found. One genus only, Scaptolenus, is represented in Central America;

twenty-nine species, with nine new, are enumerated. It has not yet been recorded

from South America.

The Rhipidoceride is another Family of limited extent, and in which also the

females are rarely met with. Fourteen species, belonging to three genera, are recorded

from Central America, one genus and eleven species being treated asnew. Callirrhipis

Vili INTRODUCTION.

is noteworthy from the strong flabellation of the antenne in the males and the almost

glabrous body in the females, the antenne in this sex being serrate. One of its

species, C. laportei, is extremely variable in colour.

The Dascillide is a family of considerable extent, and one, as regards its exotic

‘species, almost entirely neglected by Coleopterists, no one having hitherto attempted

to deal systematically with the very numerous tropical members of the group. The

North-American forms, however, have been monographed by Dr. Horn, and his work

has been of creat assistance to me in dealing with the Central-American species. The

extreme fragility of these insects is well known, and it is perhaps for this reason that

they have been so little studied. It is a significant fact that up to the time of writing

not a single species of Ptilodactyla had been recorded from within our limits, whence

no fewer than fifty-nine are here described, the genus, in fact, being one of the most

characteristic in the Central-American fauna.

The total number of Dascillide from all parts is given in the ‘Munich Catalogue’

(1869) as 228, with thirty-one genera, and about one hundred species have since been

added. America north of Mexico has (Henshaw, 1895) fifty-two species, with twenty-

three genera. From Central America no fewer than 150 species are here recorded, these

belonging to twenty genera, seven genera and 116 species being treated asnew. The

majority of the Central-American species belong to two genera only, Péilodactyla (59)

and Scirtes (21), this last-mentioned genus apparently greatly outnumbering Cyphon

in the tropics, nine species only of the latter being at present known from within our

limits. The Tropical-American genus Artematopus represents a very distinct section

of the family; eight species are described from the southern portions of our region,

The other Central-American genera—like those of North America—each contain but

few species.

G.C. C.

August 1897.

LIST OF PLATES.

Plate. Fig. Page. Plate Fig Page

Bornes Actenodes levifrons ............ IT. 17 30

. undulata ........... 0c eee II. 20 | 31,182

Chalecophora mexicana .......... I. 1 1 | —— humeralis ................ II. 19 | 31,182

Chrysesthes auronotata .......... I. 3 2 reichel .............0005. IT. 18 32

tripunctata ...........08. I. 2 2 || Chaleangium longipenne ........ ITT. 1 33

Pelecopselaphus chevrolati ...... I. 5, 5a 3 || Colobogaster puncticollis ........ IIT. 2 33

frontaligs ...........0000. I. 56 3 || Chrysobothris delectabilis ........ IX. 13 183

——— aCULUS .. eee eee eee eee I. 5e¢ 3, 167 ichthyomorpha .:.......... III. 3 35

lateralis... .. 0... eee ee ee I, 4 4 belti oo. 0... eee ee ee ee III. 4 85

Mixochlorus suturalis .......... IX, 12 168 astuta o.oo... eee eee eee eee IIl. 5 37

Ageeocera gigas .............04- I, 16 4,168 || —— sallei................. III. 6 37

Halecia cupreosignata .......... I. 7 6 convexiuscula ............ II. 7 38

|<) I. 6 6 juncta .... ee eee eee ITI. 8 38

guttata .. 6... ee ee eee I. 9 6 trisignata ........ 0... eee ITT. 9 89

Trachycele blondeli ............ I. 8 7 socialis ......... ee eee eee III. 10 39

Hippomelas saginatus .......... I. 10 8, 171 trochilus ....-........... ITI. 11 40

Psiloptera monilis .............. I. 11 8, 173 guatemalensis ............ ITT. 12 40

dilaticollis ...........-.0.. I. 15 | 11,173 || —— inequalis ................ ITT. 13 42

Dicerca eneovaria ............0. I. 14 | 12,174 || —— acutipennis .............. III. 14] 42,184

propinqua .............0.. I. 12 12 InsidiosA se... eee ee eee ITT. 15 43

Buprestis catoxantha............ I. 13 | 18,174 | —— quadriplagiata ............ IT. 16 43

piliventris ................ I. 17 | 13,174 simplex .............000-. Hil. 17 44

Cinyra costulata.............6.. I. 20 15 | ——stellifera ................ Il. 18 44

frontalis.............00000. I. 19 15 costifrons .............4.. TIT. 19 | 45,184

Isopheenus parallelus ............ IX. 11 176 lateralis... .... 00... e ee eee III. 20 | 47,185

Melanophila viridiobscura ........ I. 18 16 || Amorphosoma penicillatum ...... IV. 1 48

Tetragonoschema humeralis ...... If. 1 17 || Stenogaster costifer ............ IV. 2| 48,186

Conognatha octoguttata.......... IT. 3° 19 || Trypantius infrequensf.......-.. IV. 3 186

bifasciata 2.6.2.2... eee. IT. 8 19 || Cyphothorax palleolatus ........ IV. + 49

Acmeeodera regularis............ II. 2 21 || Autarcontes abdominalis ........ IV. 6 49

flavosparsa .............. II. 4 | 22,179 || Omochyseus terminalis .......... IV. 5 50

superba .......... 0. eee ee II. 5 23 || Engyaulus pulchellus............ IV. 9 50

Picta .... kee eee eee eee II. 6 24, 180 || Paradomorphus obscureguttatus IV. 7 51

flavopicta* ...........05. II. 13 | 24,180 vermiculatus .........--205 IV. 8 | 51,186

delectabilis .............. IX. 14 180 CAVISSIMUS .........-e eee TX, 16 187

Venusta .... cee eee ee eee Il. 12 25 gibbifrons ............008- IX. 20 187

longipennis .............. II. 11 25 || Agrilus inequalis ..... ........ TV. 10 59

stellaris .............0008, II. 10 26 pilosus .............000.. IX. 17 188

SCtOSA.. eee ee ee eee eee eee II. 9} 26,181 || —-— diversus...............05. IV. 1k 60

OXiliS .. ee ee ee ee ee II. 7 | 27,181 || ——- velutino-maculatus ........ IV. 12 61

Sphenoptera purpurasec ns........ II. 14 28 || —— exustus ...........0.0 cee, IV. 13 62

Actenodes fulginea.............. II. 15 | 29,181 | —— inclinatus ................ y. 1 62

bifasciata ...........e eee II. 16 30 || ——sodalis ...........0...00- LY. 14 63

* Acmecodera flavosticta on the Plate.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt.

t Tripanidius infrequens on the Plate.

1, August 1897.

x LIST OF PLATES.

Plate. Fig. Page. Plate. Fig. Page.

Agrilus distans .............006 Vv. 2 | 64,188 | Agrilus striativentris............ VI. 24 112

divaricatus ...........00. IV. 16 64 laticeps ........0- 0. eee _ VI. 25 113

baleenoides...........0.00- Vv 4 66 || -— stellatus...............05. VIL. J 114

centralis .........2..005. Vv 3 66 simplicicollis .............. VII. 2 116

—— lotus...... 6... cee ee ee, Vv 5 67 quadrimaculatus .......... VIL. 3 116

—— discoidalis................ Vv 7 68 sexmaculatus...........04- VIL. ae 117

—— @XCISUS ..... eee ee ee Vv 6 70 fossiger .... eee ee ee VIL. 5 117

eribricollis.............0.. Vv 8 70 aureoviridis ...........46- VIL. 6 118

—— sparsuS ........ ee eee eee Vv 10 71 restricts ............008 VII. 7 119

—— aciculatus ................ Vv 11 71 delectabilis ............-. VII. 8 119

—cavifrons .............04. IX. 18 189 brunnipennis............-. VIL. 9 120

——-~ laticaudatus .............. Vv. 9 72 fossulatus 1.0... 0.00000 eee VII. 10 120

chlorocephalus ............ IV. 17 73 || —— quadricostatus ............ VIL. 11 122

lentulus........ 00... eee ee v 12 73 || -—— subcostatus ........ 00006. VIL. 12 122

dentifer .....0.....0.. 000, Vv 13 74 (?) dissimilis ...........0.. VII. 13 123

strigifrons .............6-. IV 19 75 | Paragrilus angulaticollis ........ Vit. 19 124

—— manatus ................ Vv 14 76 | Exesthetus dasytoides .......... IX. 15 193

—— vittulus .......... 0.00000. IV 18 76 || Brachys simplex........0..00005 VIL. 14 134

—— socialis ......... cee ee eee IV 20 77 | Lius dissimilis ........... wees VIL. 18 135

—— acuductus ............6... IV. 15 78 || Pachyschelus compactus*........ VIL. 15 138

— denticulatus .............. V. 16 78 fulgens 22... 0... eee eee VIL. 17 141

nitidicollis.............08- V. 15 79 COMMUNIS ..... eee eee eee VIL. 3 141

—— observans .............4. V. 17 79 familiaris .............0.. VIII. 9 141

——bellus ..............000. Vv. 18 80 IncertUs........ eee ee eee VIII. 4 142

spinicaudatus ............ V. 19 80 octodentatus .............. Vill 5 142

——molestus ............005- Vv. 20 83 robustus ........ eee eee VIII 10 142

— sublateralis .............. Vv. 21 88 diversus.......... 0 eee eee VI. 16 143

—— oblitus .......... 02.0006. IX. 19 189 dubius ........ cee eee eee VIII. 6 143

— femoralis ................ V. 22 92 affinis...... kee eee eee VIII. 7 143

—— cephalotes.............0.. V. 23 93 purpureipennis ............ VII. 8 144

temeratus ...... 0.00.00 eee Vv. 24 94 ardenS .... eee eee eee VIII. 1 144

—— letulus ........ ee eee eee V. 25 95 secedens........ eee ee eee VIIL 2 145

—— consimilis .............6.. VI. 1 95 discoidalis .............465 VIIT 11 145

—— apicatus............ ee eee VI. 2 96 granulosicollis ............ VIl. 20 146

—— ignotus ........ cee eee eee VI. 3 98 | —— deplanatus................ VIII. 12 146

—— vigilans ........ ee eee eee VI. + 100 AVETSUS we... ee eee eee VIL. 13 146

—— simulans ............000- VI. 5 100 | —— modestus .............05. VIII. 14 147

—— speciosus ........0.. 2 eee VI. 6 101 nigricollis ............008. Vil. 21 148

—— aspertlus .............0-. VI. 7 101 lunifer ...... 02... ee eae VII. =| 22 148

—— biemarginatus ............ VI. 8 103 CINCLUS ve. Lee eee eee ee eee VIIl. 15 149

TAtUS 2. cee eee ee eee ee eee VI. 9 103 Irroratus .......e eee eee VIL. 23 149

pullulus...... 0... eee eee. VI. 10 104 laticeps .. 0.0... . eee ee eee VIII, 16 149

— confusus .............4.. VI. 11 104 SignatuS... ee. cece eee VIII. 17 150

—— acclivis ...... ee eee ee eee VI. 138 105 trapezoidalis .............. VII. £4 151 |

—— acceptus..... eee eee eeee VI. 12 105 | ——- undulatus ................ VIII. 18 151

temporalis ........ 0.200065 VI. 14 105 bifasciatus .. 2... 2... eee VILL. 19 151

refectuS ...... cee eee eee VI. 15 105 elegans 2... . eee ee eee eee ee VIIt. 20 152

PALVUS oe. eee eee ee ee ee VI. 16 106 AZUTCUS 1... eee eee ee eee VIII. 21 152

dimidiatus ................ VI. 17 107 biguttatus ....... 2... eee VII. 22 153

—-— SPISSUS .. 1... ee eee eee VI 18 108 sticticuS .. 6... ee ee eee VIII. 23 153

—— planatus .......... 0.000. VI. 19 109 pubicollis ................ VIII. 24 153

gracilitarsis ...........0.. VI. 20 109 | Leiopleura intermedia .......... IX. 1 154

Signatus...... eee ee eee eee VI. 21 110 contigua ....... eee eee IX. 2 154

albofasciatus .............. VI. 22 110 CLASSA.L LL eee eee IX 3 155

croceomaculatus .......... VI. 23 111 pulchra ......--.......05, IX 4. 156

Pachyscelus compactus on the Plate.

LIST OF PLATES. Xl

Plate Fig Page. Plate Fig Page

Leiopleura trivialis.............. IX, 5 159 || Alaus suturalis, 9 .............. XI. 13 271

CONVEXA 2... ee ee eee eee IX, 6 160 || Hemirhipus bimaculatus, ¢ ...... XI. LZ 271

parvulas s,s in eek .. Ix. Zz 161 || —— ferrugineus .............. XXIV 3 552

POlita. ee baile cee ee eee IX. ) 162 decorus, do: ene ek, XI. 19 272

Callimicra dimidiata ............ IX. i) 164 || Chalcolepis luczoti.............. XI. 16 272

angustula ................ IX. 10 166 || Chalcolepidius lafargeil, Q........ p.2 & 18 276

——rugatus, QQ .... see eee eee XI. 20 276

Tposctn 2 —_ , var. pistorius, d..... XI. DA 276

: —— approximatus, 2 .......... XI. 22 £78

Lissomus trapezoideus .......... X. 7 196 apacheanus, Q * .......... XI. 23 | 278, 552

~ pilarius ............ 0.0005 X. 6 196 lacordairei, var., Q ........ XIT. I 279

Drapetes cingulatus ............ X. 4 202 exquisitus, 6 .........8e- XI. 24 279

teeniolatus ...........0 00 ee X. 5 203 silbermanni, 9 ............ XI. 25 280

punctulatus .............. X. 3 205 forrerl, Qo... ee cee eee eee XI. 5 281

—— hemorrhoidalis............ X. 2 206 virginalis, O.....-..00000- XII. 2 281

NIQEl wee eee cece eee ee eee X. 1 207 || —— gMOP Gy Do ek es Baca wa XI. a 281

—— angustatus, Q ............ XII. 4 282

ec conartinr — murinus, Oe wh awed Se a woe ne XII. 6 283

“ : jansoni, Q......... weeaee XII. 7 2838

Isorhipis holosericea ............ X. 8 214 boucardi, O 1... .. ee eee eee XII. 12 283

Gastraulacus cavifrons .......... X. 9 215 desmaresti, var., Q ........ XII. 8 284

Dromeolus variegatus .......... X. 10 220 | —— 6 abd ae ee deen’ XII. 9 284

ornatulus .............00. X. 11 220 || —— mexicanus, ¢ ............ XII 10 284

tripartitus .............00. X. 12 221 || —— GD oo OE ae hw ble bas XII. 11 284

Pheenobolus bicolor ............ X. 13 224 jokeli,:Q 0.0060. 6... ibe 5 XII. 13 285

Eurachis elegans .............. X. 14 225 rodriguezi, Sw... ee eee ee XII. 16 286

Fornax atripennis .............. X. 15 227 || —— y VAN, QD Oise wi cee wes XII. Li. 286

truncatus ............0.4. X. 16 229 || —— attenuatus, d ............ XII. 18 286

Dyscolotaxia championi.......... X. 17 239 cuneatus, ¢ ...... ee. eee XII. 14 286

Diphytaxis excavata .........4.. x, 1 } 240 pice ee ne oat ie nie

Henecosoma discicolle .......... X. 20 240 tenuis, Q .... ee eee ee eee XII. 20 287

Phlegon viduus ................ X. 21 244 || Semiotus cuspidatus, Q.......... XII. 2) 288

Microrhagus frenatus,$ ........ X. 22 249 splendidus, Q ............ XII. 23 289

insidiosus, G 2... 6... ee ee ee X. 23 251 insignis, var. longus, 9 XII. 25 289

Adelorhagus lateralis............ X. 24 255 lafertel, 9.1.2.2... eee eee XII. 22 290

Thylacosternus donatus.......... Xx. 25 257 dohrni, 9 ........ eee eee ee XII 1 290

— 5, Wary 2 Kk eek XIII 2 290

Eater —— superbus, var., Q .......... XIII 4 291

= a Or XIII 5 291

Adelocera mexicana ......,..... XI. 1 260 || ——- chontalenus, Q ........... XIII 3 291

pollinaria ................ XI. 2 260 || —— carus, var. antennalis, ¢ ....| XXIV 4 553

viridis ..........-000000 XI. 38 260 ligneus, 9... . eee ee ee ee ee XII. 24 291

longicornis, ¢ ............ XI. 4 261 || Oistus cacicus, S «1... ee ee eee XIII 8 292

pectinicornis, 6 .......... XI. 5 262 sphenosomus, 6 .......+.- XIII vi 292

Dilobitarsus inopinus............ XI. 6 262 oUt 2 ey Se wpe is XXIV 5) 593

@ClOME oe ck ce ee ww wen XT. 10 263 || Dicrepidius corvinus, d.......... XI 9 29+

Lacon brevis .............0.0-. XE. 7 265 polittaas? Go. Sa oa ary epetedace XIII 10 294

tIUQUIE ee oe ee ee XI. 8 265 serraticornis, Go... ee eee XIIT 6 295

paleatus.............- 000. XI. 9 267 || Spilus ciliaticornis, J .......... XIII 11 295

Meristhus scobinula ............ XI. 12 268 || Spilomorphus rubricollis, Q ...... XIII 12 296

squamiger ..............2. XI. 14 269 || Heterocrepidius megalops, ¢ XIII 13 297

Agrypnella squamifera .......... XVIII 21 | 415, 556 || Atractosomus fusiformis, ¢ ...... XII 14 299

Alaus plebejus, 9 ............5. XI. 11 270 eurticallis, So bee eed nies XIII 15 300

BiGhOE eg ibd so nea ee 0's XI, 15 270 || Anoplischiopsis basimaculatus, ° . XIII 16 801

* Chalcolepidius webbi on the Plate.

xii LIST OF PLATES.

Plate Fig. Page. Plate Fig Page.

Anoplischiopsis bivittatus, d...... XIII 17 302 || Monocrepidius pictus, var. ...... XV. 20 354

flavovittatus .............. XIII 18 302 bellus, var... . 2... ee eee eee XV. 21 354

lineatocollis, 9 ............ XIV. 2 | 308, 554 || —— mexicanus.......... wees XY. 22 355

— as a XXIV 8 554 sexpustulatus ............ XY. 24 355

trinotatus, QQ ............ XXIV 9 555 parvulus 12... eee e ee eee XV. 25 356

.| Anoplischius piliger, 2.......... XIII 19 306 || Heteroderes gibbulus............ XV. 26 358

—— chaleopterus, d .......... XII 23 308 || AZolus bimucronatus ............ XV. 23 360

—— mexicanus, d ............ XIII 20 | 309, 555 facetus, Var... 1. eee eee eee XVI. 1 360

lucidus, Q............0-5. XIV. 5 311 hexastigma ...........065 XV. 27 361

—— maculicollis, g ............ XIV. 3 311 trimaculatus ..........+.6. XVI. 2 362

divisus, Qo... . eee eee eee XII 21 312 testudineus ...... eee eee XVI. 3 362

elegans, Qo... eee ee eee XIII 25 312 tripartitus, J oo... k eee eee XVI. 4 363

lineatus, var., d .......... XII 24 313 obliquus............ ee eae XVI. 3) 364

flavicollis, d.............. XIV. 4 313 pulchellus ............08.. XVI. 6 364

sanguinicollis, ¢ .......... XIII. 22 314 || -—- marginatus .............. XVI. 7 365

foveifrons, O ..........000. XIV. 6 315 panamensis .........e eee XVI. 8 366

Crepidius emarginatus, Q ........ XIV. ] 316 melliculus, ¢ «1... eee eee XVI. 9 366

Ischiodontus carinicornis, d...... XIV. 7 318 || ——tropicalis .............0.. XVI. 10 367

posticus, dw. . eee ee ee eee. XIV. 8 320 || —— >VAT., Sve eee eee eee XVI. 11 367

angustatus, ¢ ...... ce eee. XIV. 9 321 circumscriptus, var. ........ XVI. 12 367

——- chiriquensis, d............ XIV. 10 323 || —— trilineatus ................ XVI. 13 368

anceps, Go ..ee eee eee eee ee XIV. 11 324 | —-- yucatanus ........... 000 XVI. 14 369

balteatus, Q ..... 2... ee XIV. 12 324 rodriguezi .... 2... ee eee ee XVI. 25 369

cyanopterus, Q............ XIV 13 327 pictus, Oo... eee eee eee ee XVI. 15 369

resplendens, 9 ............ XIV. 14 327 Vittatus, fee eee eee eee XVI. 16 370

— metallicus, ¢ ............ XIV. 15 328 || —— , Var, Q we cece ee eee XVI. 17 370

denticornis, ¢ ............ XIV. 16 329 CrUCIZEl . 6. eee eee XVI. 18 371

prasinopterus, ¢ .......... XIV. 17 329 Tugipennis ........ se ee eee XVI. 19 71

marginatus, d ............ XIV. 18 330 atViCePS ... eee eee eee XVI. 20 371

Viridis, Oo... eee eee eee eee XIV. 19 331 vermiculatus .......... 000. XVI. 21 372

——— eriseipilis, d...... 0.0, XIV. 20 532 nigritulus 22... ... eee eee XVI. 22 373

erythroderus, ¢ .......... XIV. 21 332 | —— discoideus ...........--4.. XVI. 23 373

—— »VAr, Qe eee eee eee XIV. 22 332 OVIpenniS 1... ee eee eee eee XVI. v4 374

—— melas, Sd .....e eee eee eee XIV. 25 333 | Drasterius meridionalis ...,...... XVI. 26 375

brevis, Go... ec eee eee eee ee XIV. 23 335 || Elater arctus, do... .. eee ee eee XVII 1 Sia

—— debilis, @ oo... eee eee. XIV 24 336 | Megapenthes brasilianus, g ...... XVII 2 378

limbatus, O ws... eee eee ee XIV. 26 336 cincticollis, Q .........0.- XVII 3 379

bifasciatus............0.0. XIV. 27 337 melanotoides, Q ........-- XVII 4 382

Kudactylus grandini ............ XV. 1 338 badius, Q ...... eee eee eee XVII 5 383.

partitus .... eee ee ee eee XV. 5 338 fusiformis, we... eee eee XVII 6 384

eburatus .....-... 00.000 XV. 3 339 | Physorhinus distigma, Q ........ XVIT 7 386

Achrestus fulvovittatus, d ...... XV. 2 340 | , var. cephalicus, d ... XVII 8 386

-—— venustus, SO .......-..000. XV. 4 310 | —— >Var. Pw... eee eee XVII 9 38

Monocrepidius rodriguezi, d...... XV. 6 342 quadrinotatus, d .......... XVIL 10 387

flavangulus, var. vittatus, d.. XV. 7 343 cruciatlS ........ cc eee aee XVII 11 388

lividus, Sv... eee ee eee eee XV. 8 344 longicornis, ¢ ....... eee. XVIT 12 389

rubidus, 6 ......... eee ee XY. 9 345 stellatus, Go... eee eee ee XVII 13 389

parallelus, d.............. XV. 10 345 | Anchastus sanguineus, d ........ XVIT 14 391

angusticollis, d.........0.. XV. 11 347 ruficullis, SO we... eee eee XVIL 15 391

nocturnus, J... ee... eee XV. 12 348 discoideus, G «ee. ee ee ee ee XVII 16 392

——notatus, d ......... eee, XV. 13 348 circumcinctus, Q .......... XVII 17 392

belti, Go... eee eee eee XV. 16 349 angusti, Q .... ee ee eee eee XVII 1& 393

exclamationis, var. ........ XV. 14 350 diversus, Q .............-} XVII 19 393

—— inconstans ...........6.00. XV. 15 351 melanurus, Q ............ XVIL 20 394

-—— bipustulatus .............. XV. 17 302 semiINiger .... ee ee eee eee XVII 21 394

VaTianS 1... .. eee eee eee XV. 18 353 || —— maculicollis, 9 ............ XVII 22 395

pictus, var, .. ee. eee eee ee XV. 19 354 | -—— bilineatus ...........0.... XVII 23 395

LIST OF PLATES. Xlii

Plate. Fig Page. Plate Fig Page.

Anchastus flavovittatus,Q........ XVII 24 396 || Esthesopus coarctatus,? ........ XIX. 27 445

, VA. a, Swe ee ee eens XVII 25 396 scapularis, ww... eee wun XIX. 28 445

-—— , var. B, Q .seeeeaeee XVII. 26 396 || Dodecactenus staudingeri, J ...... XX, 1 446

—— moratus .......... cece eee XVII 27 397 guatemalensis, ¢ .......... XxX. D) 447

flavomaculatus, ¢ ........ XVII 28 397 || Spheniscosomus rubicundus, g..., XX. 4 448

tenuistriatus ............5- XVIII 1 399 || —— tropicalis, ¢ ...........0.. XX. 7 449

Anchastomorphus phedrus........ XVIII 2 400 cribrosus, ¢ we... eee ee eee XX. 6 450

apicalis .. 6... . cee ee ee eee XVIIT 3 400 levis, Swe eee ee eee eee XX. 5 451

suturalis, var. a......--- 20s XVIII 4 400 || Melanotus carinifer, ¢ .......... XX. 3 452

as pVALLY cece eee eee eee XVIII 5 401 || Limonius longulus, var., g ...... XX. 8 455

——— quadriguttatus ..,......... XVIII 6 | 401,556 || Athous photinoides, 9 .......... XX. /9,10 457

Psiloniscus sticticus, d ........-. XVIII 7 402 campanulatus, 2 .......... XX. 11 458

costaricensis, Q ......--6- XVIII 8 402 || —-—— mexicanus, d ............ XX. 12 458

apicalis, GL. ee eee ees XVIII 9 403 || —— equinoctialis, 9 .......... XX. 13 459

—— brunneus, 2 ..........006- XVIII 10 403 rugipennis, ¢ ............ XX. 14 460

Paranius mexicanus, d .......... XVIII 11 404 funestus, ¢ ...........0ee XX. 15 461

Deromecus trivittatus............ XVIII 12 405 carinicollis, ¢ ............ XX. 16 A461

Smilicerus belti, ¢ ......---55- XVIII 14 405 || Acanthathous pachyderoides, 3 XX, LF 462

Pomachilius spinifer ............ XVIII 16 406 || Pyrophorus noctilucus, ¢ ........ XX. 18 466

Hypnoidus cucullatus............ XVIII 13 408 strabus, OG... .. cee ee eee XX. 19 466

teapeNnsiS 1... ec eee eee eee XVIII 15 410 pellucens, ¢ ...........00. XX. 20 467

quadriplagiatus, d ........ XVIII 17 411 || —— he a ee XX. 21 467

tetraspilotus, J ........ eee. XVIIT 18 411 indistinctus, d ............ XX. 22 467

—-—- quadrisignatus ............ XVIII 19 412 || —-— clarus, d ...........00... XX. 23 468

MCEXICANUS ... ee ee XVIIT 20 412 fulgidus, 6 wo... cc... XX. 24 468

Arrhaphes americanus .......... XVIII 22 413 caudatus, O we... ec. eee eee XX. 25 468

Cardiophorus aptopoides, d ...... XIX. 2 416 havaniensis, ¢ ............ XX. 26 469

brevis, Var. a... . eee ee eee XIX. 3 417 ornamentum, ¢ .......... xX. 27 469

vulneratus, @ ..... eee eee XIX, 4 417 occidentalis, Gg ............ XX. 28 470

Aptopus pruinosus, ¢ .......... XIX. 1 419 || -—— mexicanus, ¢ ............ XX. 29 A470

collaris, Go... cece eee eee XIX, 5 419 |, —— physoderus, ¢ ............ XX, 30 471

rufomarginatus ............ XIX. 6 A420 stella, do... ee eee XX. 32 471

Vicinus, Gi... ce eee ee eee XIX. 8 421 radians, G........ 0... eae XX. ol A472

lateralis, var. a .........00- XVIII 23 429 restinctus, Sd .........0.. XX. 33 473

—. p War. Po. ee eee eee eee XVIII 24 422 || Alampes melanoxanthus, ¢ ...... XXII. 1 474

——. , var. basalis.......... XVIII 25 429 vestitus, Q ov... eke eee XXII. 3 AT74

—— VOL. € Lecce eee ee eee XVIII 26 422 || —— rs XXII. 3a 474

—— pVare fleece ee eae XVIII 27 422 || Ischius haagi ..............04.. XXI. 5 475

erichsoni, G ...... ee ee eee XIX 9 423 || Corymbites pilatei .............. XXI. 2 476

campylinus, Sg ............ XIX. 11 426 || Anthracopteryx mexicanus, d ....) XXI. 4 A476

Triplonychus carinatus .......... XIX. 7 426 || Hemicrepidius bivittatus, 9 ...... XXI. 6 480

trivittatus, ¢ «ee. ee eee XIX. 10 42 instabilis, var., gd .......06- XXII. 7 480

parvulus, d ...... 2. ee... XIX. 13 427 || —— , var. leucostigma, 2 XXI. 8 480

Horistonotus dilaticornis, ¢ ...... XIX. 12 431 longicollis, ¢ ww... ee eee XXI. 9 481

truncatus ............000. XIX. 14 433 consobrinus, 2 ............ XXI. 10 482

sulcifer .... eee ee ee cee XIX. 15 433 patruelis, 9 ...... ee. eee. XXI. 11 484

bicinctus, O .... ee. ee eee XIX 16 436 parvulus, 9 ...........2.. XXI. 12 484

fasciatus, ¢ .... ee. eee ee, XIX. 17 437 flavipes, Qo... . ee ee ee eee XXI. 13 485

discoideus ..............6. XIX. 18 438 candezel, dw... ee eee eee XXI. 14 A86

apterus, O.... reece eee XIX, 19 438 longicornis, var., d ........ XXI. 15 486

Esthesopus humilis.............. XIX, 20 441 cruciatus, Ow... . eee eee XXI. 16 487

hepaticus ...........e eee XIX 21 441 pictipes, Q wi... ee. ee eee XXI. 17 488

apicatUs ... 6... eee eee eee. XIX 22 443 || —— biformis, 6 ..........04.. XXII. 19 A488

quadripustulatus .......... XIX. 23 443 y Bid ee ew See Sek! XXI. 20 488

atripennis .........-...00. XIX, 24 443 || Allotriopsis nasalis, ¢ .......... XXI. 18 490

breviusculus .......-...... XIX, 25 444 || Hypodesis sericea, d ............ XXI. Al 49]

bifasciatus ........-02....0. XIX. 26 A445 aureipilis, 9 ..........005. XXI. 22 A92

Xlv LIST OF PLATES.

Plate. Fig Page. Plate. Fig Page.

Hypodesis penicillata, 9 ........ XXI. 23 493 || Glyphonyx propinquus .......... XXIII. | 24 540

auricoma, 9 .............. XXI. 24 493 || --— nigritus.................. XXITI. | 25 542

vittata, var., do... eee eee XXI. 25 494 mimeticus ............006- XXIII. | 30 543

viridipennis, g ..........0. XXI. 26 494 laticollis..... 0.2.0... 000s XXII. | 29 543

Cardiorhinus binotatus, 2 ........ XXII. 27 495 ebeninus ..........+ eee XXIII. | 26 544

Tomocephalus substriatus, d...... XXII. 1 496 quadrinotatus ............ XXIII. | 31 545

melanotus, Q ........ ee. XXII. 2 497 cinctus ....... .e ee ee ee XXIII. | 32 546

sardioderus, 2 .........28- XXII. 3 498 parallelus ..............4. XXIII. | 27 548

bicolor, Oo... eee eee eee XXII. 4 498 || Microglyphonyx coarctatus ...... XXIII. | 33 590

insignis, Qo... eee eee ee XXII. 5 499 || Cylindroderus cribricollis, ¢ XXIV. 2 550

Ludius cylindricollis, Q.......... XXIT. 6 501 || Octinodes carinatus, ¢ .......... XXIV. 1 551

nigricollis, G.........0.00. XXIT. 7 501

breviusculus, d.......0.... XXII. 8 503 Cuprionipx

depressus, S........ eee ee, XXII. 9 505 ;

—— physorhinus .............. XXIT. | 10 505 || Scaptolenus fulvus, ¢ .......... XXV. 1 560

setosus, Do... .. ee ee ee eee XXII. | 11 505 vagans, Oi... eee eee eee XXV. 2 561

Orthostethus piceus, 9 ...-...... XXII. | 13 509 acutangulus, g.........04. XXV. 3 561

COrvinus, G ve... ee eee eee ee XXII. 12 509 amplipennis, d............ XXV. 4 562

glabratus, Q ..... ec. eee ee XXII. 15 509 || —— guttiventris, d............ XXV. 5 562

cavifrons, So... ee eee eee XXII. | 14 510 hirticollis, d.... 0.0... eee XXV. 6 563

pectinicornis, .......... XXII. | 16 510 californicus, ¢ .........-4- XXV. 7 563

Agriotes sublineatus ............ XXII. | 17 514 || —— acrognathus, d...... 12... XXV. 8 564

lineipennis, ¢ ............ XXII. | 18 515 laticollis, G .... ee... ee eee XXYV. 9 564

hilaris . wo... ...... ec. eee XXII. 19 515 villosus, Owe. ce eee ee ee XXYV. 10 565

virgatus, Var. we... eee XXII. 20 516 || —— mouffleti, ¢ wo... eee XXV. 11 565

pulcherrimus, ¢ .......... XXII. 21 516 pueble, d...... ee eee eee XXV. 12 566

—. , var. ligatus ........ XXII. 22 516 —candezei, Sow... cee ee eee XXV. 13 566

— ,VAT. OF eee ee eee ee XXII. 23 516 NIgviceps, SG... sees ee eens XXY. 14 566

castaneipennis ............ XXII. 24 517 || —— brevicollis, ¢ ............ XXYV. 15 567

POXUS.... eee eee eee XXII. 25 517 gehini, do... . ee eee eee XXYV. 16 567

—— teniatus, dg ...........0.. XXII. 26 518 ruficornis, 6 ........ eee ee XXYV. 17 568

bicolor 2... .. 0. eee eee ee XXII. 27 518 chevrolati, ¢ .......ee eee XXV. 18 569

—— miniatocollis, ¢ ...... XXII. | 28 519 rubriventris, Q..........4. XXV. 19 570

acutuS ....... ee ee eee XXIII. 1 519 || —— rs XXV. 20 570

lateralis...............0.. AXITI. 2 520 guerini, Ss... ee eee XXV. 21 570

trivittatus .. 6.2... eee ee XXIII. 3 520 signaticollis, G.........00. XXV. 22 571

notatus .............0.00. XXIII. 4 521 teapensis, Sw... . ee eee eee XXYV. 23 571

amabilis ..............-. XXIII. 5 521 femoralis, SO... ... eee eee XXV. 24 572

— 6: 0 XXITT. 6 521 || —— ,VAr., Goce ee eee eee XXV. 25 572

scapularis .............4.. XXII. 7 522 obseuriceps, ¢ .....-...4.. XXY. 27 573

——-- quadrivittatus ............ XXIII, 8 523 longicornis, ¢ ............ XXY. 26 57

— pvar. Bo... ee ee eee eee XXIII. 9 523

trilineatus.........2...04. XXIUT. | 10 523 Ruprpocertp.2

binotatus .............000. XXIII. | 11 524 .

VacCINUS .......... ee ee, XXIII. | 12 524 || Callirrhipis carinifer, Q ........ XXIV 6 576

longipennis .............. XXIII. | 18 525 rs XXIV 7 576

curticollis ............00.. XXIII. | 14 525 obsoleta, SO we... eee eee XXIV 10 577

—— quadraticollis ............ XXIIT. | 15 525 || —— unicostata, d ........00.. XXIV 11 578

insolitus, G .. 1... ee ee eee XXIII. | 16 526 {| —— » Qo cece cece ences XXIV 12 578

a » Qc eee cece cece eees XXII. | 17 526 || —— dilaticollis, ¢ ............ XXIV 13 578

alternus, Q ...........00. XXIII. | 18 527 || —— 5 QD cece eee eee e eee XXIV 14 578

quadrilineatus, 9 ........ XXIII. 19 528 vestita, d oo... ee ee eee XXIV 15 580

cruciatus ........ 0.00000. XXIII. | 20 528 || —— » QD cece cece eee e eee XXIV 16 580

opacicollis, ¢ ............ XXIII. | 21 531 || —— mexicana, d..........00.. XXIV 17 581

angustatus................ XXIII. | 22 533 || —— Or XXIV 18 O81

Glyphonyx cuneatus ............ XXIII. | 28 538 || —— venosa, od ........ cece eee XXIV 19 581

angulatus ...............0. XXIII. | 28 540 tenuipes, S ...... eee, XXIV 26 58

LIST OF PLATES. XV

Plate Fig Page. Plate. Fig Page

Callirrhipis laportei, var.a,2 ....| XXIV 25 582 || Prionoscirtes saltitans .......... XXXVI. | 23 602

5 War. By See a XXIV 20 588 || Ora troberti .........2002e eee XXVI. 24 603

21, Ob]IQUE 66 a eS OS XXVI. | 25 604

pe TE VARY DS ene eee ae XXIV.) | 59 } 688 | 2S discaided XXVI. | 26 604

laportei, var. y, Q.......... XXIV 24 583 MUKA icee pes Fee ees bees XXVI. | 27 605

par.d, Sie cece ee eee XXIV 23 583 || Scirtes oblongus................ XXVI. | 28 609

Ptorthocera calva, ¢.........-.. XXIV 27 584 ceruleuSs ......... 000 cee XXVI. | 29 609

Sandalus nietol, Q.............. XXIV 28 585 rotundatus..............4. XXVIT. 1 609

Nats ae XXIV 29 585 circumcinctus ............ XXVII. 2 610

conicicollis, Q ............ XXIV 30 585 thoracicus ............000- XXVIT. 3 610

scapularis ........ 0c eee ee XXVII. - 611

Dasorry x suborbiculatus, var. ........ XXVILI. 5 614

° ——- quadrinotatus ............ XXVII. 6 615

Artematopus irroratus, d........ XXVI 1 587 || Cyphon bifoveolatus, Q.......... XXVIII. 7 618

obliquus, d .......-...46. XXVI 4 583 quadrifoveolatus, Q ........ XXVILI. 8 619

scapularis .........-..00 05 XXVI 6 589 parallelus, 9 ............ XXVIL. 9 619

rufescens, G .....-- eee eee XXVI 2 590 impressipennis, Q ........ XXVII. | 10 620

—_—— 2) a a err XXVI 3 590 truncatus, Q........0..00. XXVIII. | 11 620

seticornis, S...... ee ee eee XXVI 5) 591 | Haploglossa collaris, ¢ .......... XXVIII. | 12 624

Ctesibius eumolpoides .......... XXVI 7 592 | Telon cucullatus................ XXVIT. | 14 626

Anchytarsus substriatus, Q ...... XXVI 8 593 || Ptilodactyla rufa, ¢ ............ XXVIT. | 13 630

Tetraglossa palpalis, ¢ .......... XXVI 9 594 maculata, var., d.......... XXVIT. | 15 Q30

DF ks ite ce oh XXVI 10 594 substriata, G ..........6. XXVII. | 16 632

Cneoglossa lampyroides .......... XXVI 11 595 brevicollis, 9 ............ RXV | TT 636 |

Dicranopselaphus pictus, g ...... XXVI 12 596 corvina, Var., d .......-.- XXVII. | 21 636

vennosus, Goo. eeeeeeee eee XXVI 13 597 || —— montana, oJ .......2.. 000. XXVIT. | 24 643

flavicornis, G .........05. XXVI 14 597 rugtlosa, Go... eee ee eee eee XXVIII. | 18 644

Kctopria reticulata, ¢ .......... XXVI 15 598 dilaticollis, ¢ ............ XXVIT. | 19 646

eR ee ew ee ee es oe XXVI 16 598 denticollis, Q ............ XXVII. | 20 647

vermiculata, Q............ XXVI 17 598 caudata, Goo... cece ee eee XXVIII. | 22 648

Eucinetus strigipennis .......... XXVI 18 599 denticulata, ¢ ............ XXVIT. | 23 651

Helodes mexicana, 2 .......... XXVI 19 600 tenuls, Go... en ce eee eee ee XXVII. | 26 657

Prionocyphon pilicornis, ¢ ...... XXVI 20 601 || Lachnodactyla monticola, dg ...... XXVIT. | 25 659

De cece cence ees XXVI 21 601 || Cheetodactyla lyciformis, 9 ...... XXVII. | 27 661

AULItUS, J... eee eee eee XXVI 22 601

ERRATA ET CORRIGENDA.

for TrincopyeE read THRINCOPYGE.

for 46-89 read 46-90, and in all cases below this read one number higher to 141.

for Trypantptus read TRyPANTIvs.

after the specific name insert (Trypantius infrequens, Tab. TY. fig. 3).

for meaicanus read americanus.

dele the words (except in C. webbi).

for 2 read So.

transfer the reference (Fig. 3) to the var. & on line 9.

for A. read H.

for Fig. 23 read Fig. 22.

for 5 read 4.

for 6 read 5.

for hemispherica read hemisphericus.

BIOLOGIA CENTRALI-AMERICANA.

ZOOLOGIA.

Class INSECTA.

Order COLEOPTERA.

Tribe SERRICORNIA.

Fam. BUPRESTIDE.

This family is very well represented in Central America; and the largest, and at the same

time nearly the smallest, species of the family occur there. The presence of the largest

Buprestid here is worthy of note, because the larger species of the family are remarkably

absent, and between Huchroma (which measures 24 or 2? inches in length) and the next

in size, Chalcophora (which is only 1% inch long), there is a great gap. In. the Old World

the large Catoxantha bicolor is accompanied by smaller species of the same genus, and

there is a gradual diminution in size through the following genus Chrysochroa.

The species are chiefly referable to the genera Psiloptera, Acmeodera, Actenodes,

Chrysobothris, Agrilus, and Brachys. 'The genus Conognatha, so numerous in Brazil

and on the Amazons, is only represented at the time we are writing by a few specimens

of two or three species.

CHALCOPHORA.

Chalcophora, Solier, Ann. Soc. Ent. Fr. 1838, p. 278; Laporte & Gory, Mon. Bupr. p. 7.

The species of this genus are recorded from China, Japan, Europe, North America,

and Guadeloupe; the following species therefore show an extension in the range of

distribution.

1. Chalcophora mexicana. (Tab. I. fig. 1.)

C. virginiensi affinis; thoracis lateribus ante medium angulatis, postice sinuatis, carina mediana latiore minus

elevata; elytris impressionibus rugulosis cupreis notatis, intervallis fortiter punctatis.

Long. 13 lin.

Hab. Mexico, Oaxaca (coll. Brit. Mus.).

This species is very close to C. virginiensis; but all the impressions on the thorax and

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, February 1882. B

2 SERRICORNIA.

elytra are more coppery. The thorax is strongly angular at the sides rather before the

middle, and the posterior angles are acute and somewhat divergent; the median smooth

space is broad and scarcely convex, and the impression on each side of it has some

irregularly placed strong punctures; the sides are strongly rugose. The elytra have

the impressions similarly placed to those in C. virginiensis; but the raised portions are

less prominent, and, having large punctures scattered over them, they are less glabrous;

all the humeral region is more rugulose.

2. Chalcophora virginiensis.

Buprestis virginiensis, Drury, Ill. Nat. Hist. i. p. 66, t. 30. £.3°, and index.

Chalcophora noveboracensis, Fitch, Trans. N. York Soc. Agr. 1859, p. 701.

// Hab. Norta Amertca, Virginia! (Crotch).—Mextco (coll. Brit. Mus.); Guatemana,

Guacamaya, 1800 feet, San Gerdénimo (Champion).

There are in the British-Museum collection four examples marked Mexico. One of

them is undoubtedly C. virginiensis; a second has the thorax more coarsely punctured

at the sides; the other two may ultimately prove to belong to a distinct species, as they

have the smooth parts on the thorax wider, and the sides are slightly sinuous before

the posterior angles. I deem it best, however, to consider these as varieties at present.

The numerous specimens taken by Mr. Champion are more of a grey-bronze than is

usual in the North-American examples; and the specimens from San Gerdnimo have

the thorax more rugose at the sides; these characters, however, do not appear to be

constant, and Ido not, therefore, consider them specific. |

CHRYSESTHES.

Chrysesthes, Solier, Ann. Soc. Ent. Fr. 1833, p. 290.

Species of this genus have at present been found in Brazil, Cuba, and Honduras.

1. Chrysesthes auronotata. (Tab. I. fig. 3.)

Chrysesthes auronotata, Saunders, Cist. Ent. i. 1874, p. 225.

Hab. British Honvvras (coll. Brit. Mus.1 and Blancaneaux), Belize (Sallé).

This species is recognizable from its having only three strong coste on each elytron

(besides the lateral one), with two or three golden-coppery spots.

2. Chrysesthes tripunctata. (Tab. I. fig. 2.)

Buprestis tripunctata, Fabr. Mant. Ins. i. p. 179.

Hab. British Honpuras, Rio Hondo (Blancaneauz).

A specimen of this species in the British Museum, compared by Mr. Edward Saunders

with the original type, has the sides of the abdomen densely and finely punctured,

except along the’apical margin. The specimen taken in the above-mentioned locality

PELECOPSELAPHUS. 3

agrees with the former in the punctuation of the abdomen; the elytra, however, are

without the golden spots. I think, nevertheless, they undoubtedly belong to the same

species.

” PELECOPSELAPHUS.

Pelecopselaphus, Solier, Ann. Soc. Ent. Fr. 1838, p. 286.

The species of this genus are chiefly from Central America and the Amazons. There

is, however, a single specimen of P. angularis, Schonh., in the British Museum from

Monte Video. The species are easily distinguished from Chrysesthes by their narrow

tarsi.

1. Pelecopselaphus chevrolatii. (Tab. I. fig. 5, 5a.)

Pelecopselaphus chevrolati, K. Saunders, Cist. Ent. i. 1874, p. 226°.

Hab. British Honpuras (Blancaneauz); Nicaracua, Chontales! (Belt).

2. Pelecopselaphus frontalis. (Tab. I. fig. 5,3).

Nitidus, subtus cupreo-sneus; fronte cupreo-aurea, creberrime fortiter punctata ; thorace nigro-eneo, fortiter

punctato, lateribus cupreo tinctis; elytris cyaneo-eneis, plaga obliqua sub humero, macula laterali ante

apicem apiceque obscure purpureis; pedibus nigro-cyaneis. .

Long. 6 lin.

Hab. Nicaracua, Chontales (Belt).

This species is close to P. chevrolatit, but is narrower; the forehead. is more closely

punctured; the thorax is more conical in outline, not dilated at the posterior angles,

without any lateral impression, and with less distinct purple margins. When viewed

from the side the lateral line is more oblique anteriorly, not turned down suddenly as

in P. chevrolatii. The elytra are similarly marked, but the coloration and the spots are

altogether less bright ; ‘the punctuation is the same.

3. Pelecopselaphus curtus.

Pelecopselaphus curtus, Thomson, Typi Bupr. 1878, p. 25.

Hab. Muxico (Sal/é).

Three examples named P. curtus, Th., from M. Sallé’s collection only differ from

P. frontalis in having the posterior angles of the thorax slightly enlarged, and in

having the legs rather eneous. Whether these are referable to the species named

P. curtus by Thomson I am unable to say; for, although he observes that it is a species

‘“‘bien distincte de toutes les autres par les caractéres ci-dessus,” I see nothing in those

characters to enable me to say whether his description refers to my P. frontalis or the

specimens named P. curtus from M. Sallé’s collection, or any other of the shorter species.

4. Pelecopselaphus acutus. (Tab. I. fig. 5c.)

Pelecopselaphus acutus, i. Saunders, Cist. Ent. i. 1874, p. 226°.

Hab. GuatTEMALA, El Reposo (Champion); Nicaragua! (Sallé); Panama! (Brit. Mus.).

4 SERRICORNIA.

This species resembles P. frontalis in general form, but is larger, has the thorax

more strongly punctured in front and at the sides. The elytra have not the purple

spots, the punctures are closer and smaller, and the scutellar region is smooth.

5. Pelecopselaphus lateralis. (Tab. I. fig. 4.)

Supra olivaceus, subtus late cupreus; capite cupreo, fortiter punctato, thorace lato, ante medium parum

angustato, sat crebre fortiter punctato, linea mediana impressa margineque laterali cupreis; elytris

thorace haud latioribus, singulis costis tribus bene elevatis, interstitiis crebre punctulatis, regione

scutellari leviore.

Long. 11 lin.

Hab. Mexico, Tuxtla, Playa Vicente (Sallé); Nicaragua, Chontales (Belt).

P. lateralis is nearest to P. angularis; but it is shorter, the thorax is less narrowed

in front, and the lateral line (viewed from the side) instead of being greatly oblique,

suddenly bends down in the middle (Tab. I. fig. 4, a).

AGAZOCERA.

This genus is inserted in Mr. E. Saunders’s ‘Catalogue of Buprestide,’ p. 50; but it

appears never to have been characterized. The species for which it is proposed is

Anthaxia gigas, Lap. & Gory. This species stands under Pelecopselaphus in Gemminger

and Harold’s catalogue, and in its generic characters (in the structure of the sterna and

intercoxal process of the abdomen) it undoubtedly approaches very nearly to that

genus. I think, however, that it may be better to adopt the genus Agwocera as

distinct from Pelecopselaphus, on account of the trisulcate thorax, the suture of the

elytra not depressed at the base, and joined by a short costa near the scutellum, the

apical margins of the elytra not acutely dentate, but with a few crenulations or quite

simple.

x 1. Ageocera gigas. (Tab. I. fig. 16.)

Anthaxia gigas, Lap. & Gory, Mon. ii. (Anthax.) p. 2, t. 1. f. 1’.

Hab. Mexico, Orizaba (Sallé), Plan del Rio (Hoge).

Originally described as from the East Indies!, this species has since been found

to inhabit Mexico. A specimen in the British Museum compared by Mr. Saunders

with the original type bears this latter locality. It varies in size from 62 to 83 lines.

The colour varies from green (with the suture of the elytra narrowly coppery) to deep

copper-colour.

2. Ageocera scintillans.

Viridis ; elytris confertim ruguloso-punctatis, singulis costis tribus nitidis, prima tertiaque abbreviatis.

Long. 74 lin.

Hab. Mexico, Songora (coll. Brit. Mus.).

This species resembles A. gigas in general form and appearance; but the suture of

AG AOCERA.—HALECIA. 5

the elytra is not coppery. The thorax has the discoidal portion shining and very

slightly tinted with coppery, rather more distinctly coriaceous than in A. gigas, with

the strong punctures more numerous; the sides are very closely and rugosely punc-

tured; the middle channel is not very deep, and is less closely, but more strongly

punctured than in A. gigas, the lateral channels are very rugose. ach elytron has a

short obtuse costa near the scutellum, united to the raised ‘suture not far from the

base; there is then a costa which extends only for two thirds the length of the elytron

the next costa extends nearly to the apex, becoming much attenuated posteriorly; the

next is very short and slightly interrupted; the submarginal costa extends to the apex ;

all the interspaces are very closely, rather finely, and rugulosely punctured; the elytra

are not quite contiguous at the apex; the lateral margins at the apex are scarcely

crenulate.

EUCHROMA.

Euchroma, Solier, Ann. Soc. Ent. Fr. i. 1833, p. 284.

This genus contains the largest known species of this family. The species are found

in Mexico, and as far south as Brazil.

1. Huchroma goliath.

Buprestis goliath, Lap. & Gory, Mon. i. Bupr. p. 7, t. 1. f. 2°.

Euchroma columbica, Mann. Bull. Mosc. 1837, pt. 8, p. 31”.

Hab. Mexico!, Almolonga (Hége), South-west Yucatan; Bririso Honpuras, Belize

(Blancaneaux); Guatemata (Scherzer), Izabal (Sallé), San Gerénimo (Champion) ;

Nicaragua, Chontales (Janson, Belt); Costa Rica, Volean de Irazu (Rogers); Panama,

Volcan de Chiriqui (Champion).—CotomBia, Antiochia?.

A common species in Mexico and Central America, distinguished from E. gigantea, L.,

by the crenulation of the margin of the elytra near the apex.

* HALECIA.

Halecia, Lap. & Gory, Mon. i. Bupr. p. 108.

This genus, as at present constituted, is found throughout America, from Pennsylvania

to Patagonia; but the species are most numerous in Brazil; several are recorded from

the West Indies.

1. Halecia chrysodemoides. |

Halecia chrysodemoides, Saunders, Cist. Ent. i. p. 228°.

Hab. Nicaracua, Chontales! (Belt).

This is one of the section of species of Halecia which have the thorax not angular

at the sides near the base. It is nearly always golden-green ; but one example before

me is tinted above with a coppery hue. The type specimen has the cost on the elytra

blue-green ; but other examples have them of a purple-coppery colour.

6 SERRICORNIA.

2. Halecia cupreosignata. (Tab. I. fig. 7.)

Olivaceo-znea ; elytris fortiter punctato-striatis, singulis maculis quinque cupreis notatis.

Long. 11 lin.

‘Hab. Nicaracua, Chontales (Belt, Janson).

A species having somewhat the form of H. rugipennis, Gory, but with the thorax less

angular at the sides, and the elytra truncate at the apex. Head closely and rather

strongly punctured. Thorax gently narrowed from rather behind the middle to the

front, nearly straight (or very slightly sinuate) at the sides behind the middle ; impressed

on the disk and with an obtuse longitudinal, median, coppery channel; sparingly and

finely punctured on the disk, thickly and strongly punctured towards and at the sides,

with some few transverse punctures intermixed; there is an indistinct impression on

each side in front; and at the base (at a little distance from the posterior angle) there

is a distinct round fovea; the posterior angles are slightly prominent and acute. Elytra

a little broader than the thorax, strongly striated rather behind the middle, the strize

continued to the base by lines of strong punctures; the strie are themselves punctured ;

the intervals are convex between the strong striz, and nearly smooth, towards the sides

they are finely rugulose and more irregular and finely punctured. ach elytron has

the following coppery frosted impressions—a round one above the shoulder, another

small one a little removed from the base on the third interstice, a large one about the

middle (united to a small one below the shoulder), a large transversely ovate one

behind the middle, and a smaller round one near the apex; the fourth interstice

is continued to the apex as a distinct costa; the apex of each elytron is slightly

emarginate; the apical margins are strongly serrate.

I have only seen two examples of this species, which probably represent both sexes.

The specimen found by the late Mr. K. Janson is rather narrower than the one from

which I have taken the above description; it also has the thorax gradually narrowed

from the base to the apex, and the posterior angles are not at all prominent. The spot

under the shoulder of the elytron is also quite separate from the one on the disk.

3. Halecia beltii. (Tab. I. fig. 6.)

Halecia beltii, Saunders, Cist. Ent. i. p. 282°.

Hab. Nicaracua, Chontales! (Belt).

4. Halecia guttata. (Tab. I. fig. 9.)

Anea, nitida; elytris fortiter punctato-striatis, guttis quatuordecim purpureo-chalybeis notatis.

Long. 7 lin.

Hab. Nicaragua, Chontales (Belt).

Very close to H. beltii, and might be taken for a variety of that species. It is,

however, of a uniform eneous colour instead of being golden. Head very thickly

HALECIA.—HIPPOMELAS. 7

punctured. Thorax slightly narrowed in front, sparingly punctured on the disk, more

thickly and more strongly so at the sides (but not quite so closely as in H. beltit);

there is a shallow longitudinal impression in the middle of the front margin, and a

small fovea at the base; above the anterior angle is an olive-green spot; just above this

there is a very shallow impression ; and above the posterior angle is a similar impression,

which is almost united with the anterior one; these impressions are slightly tinted

with coppery. Elytra similar to those of H. deléii, but rather broader, and with the

striae much more deeply impressed and more strongly punctured, the interstices are

more convex and the dorsal ones more smooth; the spots (seven on each elytron) are

placed as in HZ. beltii, but are of a deep purple-blue; the fourth interstice unites with

the eighth at some distance from the apex, and is continued as a distinctly raised, deep-

blue costa nearly to the apex. The upperside of the femora and the tibie are dark

blue; the tarsi are blue-green.

TRACHYCELE.

Trachykele, Marseul, Abeille, ii. 1865, p. 149.

1. Trachycele blondeli. (Tab. I. fig. 8.)

Trachykele blondeli, Marseui, Abeille, ii. 1865, p. 150.

Hab. Mexico.

This very interesting insect is said to come from Mexico; but there is some doubt as

to the correctness of this locality. There is a single example in the British Museum,

which is here figured, but without locality.

GYASCUTUS.

Gyascutus, LeConte, Trans. Ac. Phil. 1860, xi. p. 189.

The species of this genus occur in the southern parts of North America. I have

not seen any specimens from Central America: one species, however, is recorded as

having been taken during the Mexican-Border Expedition in Sonora; and I therefore

include it here.

1. Gyascutus celatus.

Chalcophora celata, LeConte, Proc. Ac. Phil. 1858, x. p. 67°.

Gyascutus celatus, LeConte, Trans. Ac. Phil. 1860, xi. p. 190.

Hab. Mexico, Ures, Sonora (Dr. Webd 1).

HIPPOMELAS.

Hippomelas, Lap. & Gory, Mon. ii. p. 92.

I think it is to be regretted that this genus has been confounded with Psiloptera in

Lacordaire’s ‘ Genera des Coléoptéres,’ and also in Gemminger and Harold’s Catalogue ;

8 SERRICORNIA.

it appears to me to be perfectly distinct. The form of the apical joint of the antenne

mentioned by Gory is a slight character; the serration of the margins of the apex of

the elytra is more important; but there is another character, not, I believe, hitherto

noticed—namely, that in all the species of Pstloptera the labrum is metallic, whilst in

Hippomelas it is brown and leathery.

There is at present only one species in the genus, which appears to be confined to

Mexico.

1. Hippomelas saginatus. (Tab. I. fig. 10.)

Buprestis saginata, Mannerheim, Bull. Mosc. 1837, viii. p. 65.

Buprestis (Hippomelas) mexicana, Cast. & Gory, Mon. ii. 1841, p. 92, pl. xxiv. f. 126.

Hab. Mexico, Oaxaca, Izucar, Puebla (SaJ/é).

This species varies greatly in size; the smallest example before me measuring only

8 lines, the largest 14 lines. The colour varies, being sometimes very dark blue, and

sometimes brassy green, or tinted with a coppery hue.

PSILOPTERA.

Psiloptera, Solier, Ann. Soc. Ent. Fr. (1833), p. 283.

The type of this genus is Buprestis attenuata, Fabr. (Ent. Syst. p. 187). The species

are found in the West Indies, in Texas, throughout Central and South America, in all

parts of Africa, in Turkey, Persia, India, Siam, and Timor.

1. Psiloptera polymita.

Lampetis polymita, Chev., Silb. Rev. Ent. v. 1837, p. 59.

Buprestis (Latipalpis) cortesi, Lap. & Gory, Mon. ii. 1841, p. 81, t. 21. f. 108.

Hab. Mexico, El Cameron (Sai/é).

2. Psiloptera granulifera.

Buprestis granulifera, Lap. & Gory, Mon. ii. Bupr. p. 88, t. 21. f.112.

Hab. MExtco.

I only know this species from figure and description, unless it be the same as

P. monilis, Chevr., which is very probable.

3. Psiloptera monilis. (Tab. I. fig. 11.)

Lampetis monilis, Chevr. Col. Mex. fasc. 1. sp. 1.

Hab. Mexico, El Cameron (Sallé); GuaTeMaua, Escuintla and El Reposo (Champion) ;

Costa Rica (van Patten).

PSILOPTERA. 9

4. Psiloptera chalconota.

Statura P. monilis, Chev. ; viridis, crebre punctata, thoracis disco elytrorumque dorso plus minusve rufo-

cupreis, corpore subtus brunneo-cupreo, tibiis tarsisque cyaneis.

Long. 9-12 lin.

Hab. Mexico, Puebla, Cuernavaca (Sai/é).

A species having the general form of P. monilis, Chev. The head, thorax, and elytra

are bright golden green (rather darker than in P. monilis); the disk of the thorax is

suffused with reddish coppery; and the dorsal part of the elytra, as far as the fourth

stria, is also coppery; the extreme apex of the elytra is tinted with blue. The head is

closely, coarsely, and irregularly punctured. The thorax is about one quarter broader

than long, obliquely narrowed in front of the middle, somewhat flattened above near

the base; the punctures on the disk are strong and clear, generally in twos and threes

together, leaving the greater part of the surface smooth; at the sides the punctures are

much deeper, and very close and confused; there is a strongly impressed line along the

front margin on each side. The elytra at the base are scarcely broader than the thorax,

very gradually narrowed to near the apex, where the attenuation is more rapid. There

are some lines of moderately strong punctures; but they are so constantly interrupted

as to be almost lost. There are very numerous golden punctured spots on the dorsal

region; the surface at the sides is very uneven, the raised parts having a tendency to

form transverse rugee. The apex of each elytron is slightly obliquely truncated, the

outer angle very slightly dentiform. ‘The whole underside of the insect is brownish

coppery, with more brassy reflections, very thickly and strongly punctured, the flanks of

the prosternum being equally strongly punctured as the other parts. The prosternal

process is smooth and shining, deeply channelled on each side. ‘The intercoxal process

of the abdomen has a smooth ridge on each side; these ridges are very slightly divergent

posteriorly.

5. Psiloptera monilis, var.

Hab. Nicaragua, Chontales (Belt).

A single example from Chontales, differing from the ordinary type of P. monilis in

being rather broader, in being of blue-green colour, and in having the thorax rather

angulated at the sides. This may prove hereafter to be a distinct species.

6. Psiloptera simplex.

Statura P. monilis, eneo-fusca; thorace fortiter punctato; elytris fortiter punctato-striatis, interstitiis dor-

salibus convexis levibus, lateralibus grosse punctatis et confusis.

Long. 12 lin,

Hab. Nicaragua, Chontales (Belt).

P. simplex agrees in almost every respect with P. monilis, except in being of a

brown-bronze colour, and in having the dorsal coste of the elytra not interrupted by

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 1, February 1882. C

10 SERRICORNIA.

punctured spots. On these dorsal costee may be seen here and there a single punc-

ture; the lateral coste and strie, both being very deeply and irregularly punctured,

are much confused and interrupted; but there are no finely punctured spots as in

P. monilis. The punctuation above and below is like that of P. monilis: i. e. the head

is very strongly punctured; the thorax has strong punctures, which on the disk are

placed irregularly, the spaces between them being sometimes very little and at others

as much as three or four times the diameter of a puncture. The prosternal process is

deeply channelled on each side, with the middle convex and smooth. The femora,

sterna, and abdomen are all closely and very strongly punctured.

7. Psiloptera principalis.

Buprestis principalis, Lap. & Gory, Mon. ii. p. 38, t. 9. f. 45.

Psiloptera presidens, Thomson, Rev. et Mag. d. Zool. viii. 1856, p. 115, t. 6. f. 1’,

Hab. Panama (Boucard).—Co.omsia, Cartagena '.

This beautiful species is one of the few which have the narrow portion of the posterior

coxee densely and finely punctured and pilose, whilst the inner or broader part is coarsely

punctured and shining. I have not seen this important character noticed.

8. Psiloptera hirtomaculata.

Buprestis hirtomaculata, Herbst, Kaf. ix. p. 84, t. exlii. f.6; Lap. & Gory, Mon. u. p. 38, t. 9.

f. 46°.

Hab. Panama (Boucard).—Cotomsta, Cartagena’; VENEZUELA.

9. Psiloptera cortesi.

Buprestis cortesi, Lap. & Gory, Mon. ii. Bupr. p. 81, t. xxi. f. 108.

Lampetis polymita, Chev., Silb. Rev. Ent. v. p. 59.

Hab. Mexico, El Cameron, Oaxaca (Sallé); Nicaragua, Chontales (Belt).

The specimen from Nicaragua may prove to be a distinct species; the thorax is less

angular at the sides, the punctures are more regularly disposed, and the spots on the

interstices of the elytra are smaller and more punctiform.

10. Psiloptera drummondi.

Buprestis drummondi, Lap. & Gory, Mon. ii. Bupr. p. 37, t. 9. f. 44.

Hab. Mexico.

11. Psiloptera webbii.

Psiloptera webbii, LeConte, Proc. Ac. Phil. 1858, p. 66.

Hab. Mexico, Ures, Sonora (Wedd).

PSILOPTERA.—DICERCA. ‘ll

12. Psiloptera cupreo-znea.

Buprestis cupreo-enea, Latr. Voy. Humb. Ins. ii. p. 60, pl. 34. f.5; Lap. & Gory, Mon. iv. Suppl.

p. 91, t. 16. f. 88.

Hab. CEntRAL AMERICA.

I am not acquainted with this species.

13. Psiloptera dilaticollis. (Tab. I. fig. 15.)

Violaceo-nigra, subtus violacea, depressa; thorace lato, postice sinuatim angustato, opaco, disco levi, lateribus

crebre fortiter punctatis, basi fossa rotundata impressa; elytris punctato-striatis, striis parum impressis,

maculis plurimis auratis punctatis et pilosis notatis.

Long. 11-15 lin.

Hab. Mexico, Hacienda de Bleados, San Luis Potosi, Sierra de San Miguelito

(Dr. Palmer).

The head is very strongly and rugosely punctured. The disk of the thorax has

sometimes two or three strong punctures; there is a slight median impression, which

terminates posteriorly in a deep fossa. The striz of the elytra are strongly punctured,

scarcely impressed on the back, but more so at the sides; the apex of each elytron is

slightly obliquely sinuate, the sutural angle somewhat dentiform. ‘The brassy spots are

placed very irregularly, but have a tendency to unite transversely. All the underside

is closely and strongly punctured, of a deep violet-blue, with a little brassy colour on

the sterna and base of the abdomen. ‘The prosternal process has only two or three

punctures. The posterior coxe have their posterior exterior margin finely punctured.

This species should be placed near P. tucumana.

DICERCA.

Dicerca, Eschscholtz, Zool. Atl. i. p. 9 (1829).

The species of this genus are principally found in North America, Europe, and

Siberia; but some are recorded from Senegal, Brazil, Peru, and Chili.

1. Dicerca inconspicua. ‘

D. ence affinis et similis, griseo-nigra, enescens; thorace linea mediana angusta levi, elytrorum marginibus

maculis duabus impressis subtiliter punctulatis.

Long. 10 lin.

Hab. Mexico (Hoge, Flohr).

So near is D. inconspicua to D. enea (Linn.) that at first sight it might be taken for

a variety of that insect. The form is nearly the same, with the thorax less angular at

the sides than is usual in that species, and with the apex of each elytron a little more

oblique and the external angle less produced. The sculpture is similar; but that on

the thorax is perhaps a little less coarse, and there is a fine, smooth, raised median line.

The punctuation of the interstices of the elytra is less strong and less rugose; and the

12 SERRICORNIA.

punctures are more clearly defined; the strie are also more distinct. On th side,

below the shoulder, there are two small brassy green finely punctured impressions close

together; and about the middle, a little more removed from the margin, there is

another similar spot. The sculpture on the underside is altogether less strong; the

prosternal process and metasternum are similarly impressed, but nearly smooth, with

comparatively few punctures.

Some specimens have a more coppery tint than the others; and the sculpture varies

slightly.

The male has the apical segment of the abdomen slightly but distinctly emarginate,

with the angles dentiform; the female has this segment more narrowed and rounded at

the apex.

2. Dicerca eneovaria. (Tab. I. fig. 14.)

D. ence affinis et similis, nigra; thorace cupreo-punctato, elytris plagis transversis guttisque srecis variegatis,

apice truncato, quadrispinoso.

1 1}

Long. 93-113 lin.

Hab. Mexico, near the city (Hége).

Allied to D. wnea, but less convex, of blacker ground-colour, much less closely

sculptured, &c. It is still closer to D. inconspicua; the thorax is the same, and has a

very narrow median smooth line. The chief difference is in the sculpture of the elytra.

The striz are rather more impressed (especially near the suture); the raised parts are

black; the impressions (and punctures) are brassy bronze, and occupy more of the

surface than the black smooth parts: three impressions on each elytron (although

somewhat confused) are particularly noticeable; the first is below the shoulder, the

second rather behind the middle, the third is some distance from the apex; ali three

commence on the margin, and extend to about the third stria from the suture: besides

these there are numerous other irregular bronzy spots, the apical region being almost

entirely taken up with them. The apex of each elytron is slightly obliquely truncated ;

the sutural angle is very acute; and the outer angle is dentiform.

3. Dicerca propingua. (Tab. I. fig. 12.)

D. enee affinis et sat similis; thorace angustiore; elytris nitidioribus, fortiter punctato-striatis, ad apicem

angustatis, productis, humeris prominulis.

Long. 10 lin.

Hab. Mexico, Juquila (Boucard, coll. Sallé).

Very close to the preceding, but with the thorax rather narrower, somewhat

straight at the sides, and only a little sinuate before the posterior angles. The

elytra have the shoulders more prominent; and the apex is more narrowed and

prolonged; the apex of each is obliquely truncated; and both the sutural and external

angles of the truncature are more distinctly dentiform. The thorax is very strongly

DICERCA.—BUPRESTIS. 13

and irregularly punctured; the punctures are close on the disk and crowded at the

sides ; on the sides, before the middle, there is a small spot of fulvous pile. The elytra

are shining, somewhat regularly and very strongly punctate-striate; the interstices very

narrow, slightly confused at the sides: on the side, below the shoulder, there is a small

round pubescent spot ; and at the middle (a little removed from the margin) is a trans-

verse spot. ‘The sculpture below resembles that of the preceding species. ‘The apex

of the abdomen is gently emarginate, with the angles obtuse. .

There is a second specimen from M. Sallé’s collection, which differs in having the

elytra much more strongly punctured, and the strie are almost entirely lost. This may

belong to a distinct species; but I think it more likely to be a variety.

BUPRESTIS.

Buprestis, Linneus, Syst. Nat. ed. x. p. 408 (1760).

The species of this genus, about fifty in number, are distributed through North and

Central America, Europe, and Siberia. Species are also recorded from Canaries, Egypt,

Nepal, and Japan.

1. Buprestis catoxantha. (Tab. I. fig. 13.)

Buprestis variegata, Lap. & Gory, Mon. ii. p. 140, t. 34. f. 192 (name preoccupied).

Buprestis catoxantha, Gory, Mon. Suppl. p. 118, t. 20. f. 116.

Hab. Mexico, Orizaba (Sallé), Coatepec (Hoge); GuaTemaLa, Purula (Champion).

This insect is usually of a green colour, with purple or blue shades; the front of the

thorax is yellow, with two green spots; the sides of the thorax are yellow; each elytron

has a yellow stripe from the shoulder to rather beyond the middle, and a transverse

spot some distance from the apex. The underside is yellow, with some few black marks.

The apex of the stripe on the elytra is frequently detached as a separate spot.

A very small specimen (54 lines) from Orizaba has no yellow on the head, and the

yellow and black on the underside are about in equal proportions.

Two specimens from Purula are blackish, one with eneous, the other with purple

reflections; there is a single longitudinal yellow stripe on the front of the head; and

the elytra have an additional yellow spot near the suture at the apex of the elytron.

2. Buprestis piliventris. (Tab. I. fig. 17.)

Elongata, lanceolata, parum convexa, cuprea, subopaca; thorace crebre punctato, linea mediana elevata levi

viridi; elytris purpurascentibus, confertim punctatis, costatis, singulis vitta viridi ornatis; corpore subtus

albo-piloso.

Long. 6-83 lin.

Hab. Mexico, Chiapas (Sumichrast, coll. Sallé).

Of a more lanceolate form than B. aurulenta, Linn., which it somewhat resembles ;

14 SERRICORNIA.

but it is also less bright in colour, with only a stripe of green on the elytra, and the

channel on the thorax is replaced by a smooth raised line. The thorax is less deflexed

at the sides and anterior angles than in B. aurulenta, with strong punctures irregularly

placed, leaving irregular smooth intervals on each side of the disk; on each side of the

median ridge, along the front margin, and at the sides, the punctures are smaller and

much closer, crowded together at the sides. The posterior angles are less acute than

they are in aurulenta. The elytraare more gradually narrowed towards the apex; dull

coppery purple, with the space between the first and second cost green; densely punc-

tured, as in aurulenta. Each elytron has four cost (besides the short scutellar one) ;

the first and second extend nearly to the apex, a little more raised than is usual in

aurulenta; the third is fine, scarcely raised, somewhat interrupted, and does not extend

much beyond the middle; the fourth is also very fine, a little more elevated than the

third, and extends from some distance below the shoulder nearly to the apex. The

apex of each elytron is obliquely truncated, the sutural angle is moderately acute, the

outer angle slightly dentiform. The punctuation of the underside of the insect is some-

what similar to that in aurulenta; but that on the abdomen is more equally distributed,

and at the sides of the basal segment it is less close and finer.

3. Buprestis biplagiata.

Elongata, elliptica, cuprea, supra aureo-viridis; thorace crebre punctato, plagis duabus nitidis margineque

cupreis; elytris confertim punctatis, quadricostatis, sutura margineque cupreis.

Long. 8 lin.

Hab. Mexico, San Luis Potosi (Sal/é).

This species closely resembles the preceding (B. piliventris); but the copper-colour is

not so red, and is confined to the margins of the thorax and two patches on the disk,

and to the suture and margins of the elytra. ‘The thorax is very similar; the median

raised line is the same, but on each side of the disk there is a much more clearly

defined smooth patch, which is sparingly punctured. ‘The elytra differ in having the

scutellar stria almost confounded with the suture; the third costa is smooth and

shining, and, although abbreviated posteriorly, is as well defined as the first and second.

The apex of each elytron is obliquely and very slightly truncated, the outer angle not

dentiform. ‘The sculpture of the body beneath is very similar; but the sides of the

basal segment of the abdomen are more strongly and more closely punctured, and its

margin (especially at the sides), as well as that of the other segments, is smooth.

4, Buprestris ventralis.

Elongata, elliptica, eneo-viridis, subtus aureo tincta ; thorace crebre punctato, linea mediana nitida, margine

laterali ipso cupreo; elytris sutura marginibusque cupreis, sutura costisque utrinque quatuor parum

elevatis, abdomine parce punctulato.

Long. 9 lin.

Hab. Mexico (Hége).

BUPRESTIS.—CINYRA. 15

Also very close to the two preceding species, and is of the same form and general

characters. The thorax is coarsely and irregularly punctured, the punctures crowded

together, and smaller at the side. There is no distinct smooth patch on each side of

the disk; and the median smooth line is scarcely raised. ‘The elytra have the suture

flattened, especially at the base; the scutellar costa and the base of the first costa are

confounded with the smooth sutural area; the first stria is consequently only distinct

posteriorly ; this and the second and third are flattened, and are of a purple colour;

the fourth costa is slightly raised, and is included in the coppery margin. The apex

of each elytron is obliquely truncate as in B. piliventris; but the external angle is not

so dentiform. The abdomen has the middle of all the segments and the whole of the

second, third, and fourth segments very sparingly and very finely punctured ; the basal

segment is moderately thickly punctured at the sides.

5. Buprestis picta.

Elongata, fusiformis, convexa, parum nitida, enea aureo tincta; thorace crebre punctato, medio linea levi,

angulis anticis rufo-ochraceis, posticis incurvatis ; elytris punctato-striatis, interstitiis evidenter punctatis,

singulis lineis duabus ochraceis ornatis.

Long. 6 lin.

Hab. Muxtco (coll. Brit. Mus.).

A species closely resembling B. lineata, Fabr., in general form, colour, and appear-

ance, but with the thorax of the same form as in B. hemorrhoidalis, Herbst ; 7. @. the

posterior angles are not divergent, but rather turned inwards. ‘The thorax is strongly

and closely punctured, with a distinct smooth median line. ‘The striz of the elytra are

not quite so strong as in B. lineata; and the punctuation on the interstices is also

less strong.

CINYRA.

Cinyra, Lap. & Gory, Mon. 11. 1837, p. 157.

Leptia, Dejean, Cat. 1837, p. 89.

Species of this genus are recorded from Cuba, Mexico, Brazil, and Cayenne. One

(C. spilota, Hope) is from Australia; but, being known to me only from description, I

am unable to say whether it belongs properly to this genus or not.

1. Cinyra costulata. (Tab. I. fig. 20).

Buprestis (Cinyra) costulata, Lap. & Gory, Mon. ii. p. 159, t. 39. f. 220.

Leptia polystigma, Chevr. Silb. Rev. v. p. 78.

Hab. Mexico, Vera Cruz (Sad/é).

2. Cinyra frontalis. (Tab. I. fig. 19.)

Elongata, angusta, nitida, nigro-enea; thorace subparallelo, fortiter punctato, canaliculo mediano bene impresso

integro; elytris multicostatis, striis punctatis et in striis punctis plurimis majoribus albo-tomentosis,

apice quadridentato.

Long. 83 lin.

Hab. Mexico, Cordova (Saldé).

16 , SERRICORNIA.

This species resembles C. costulata, Lap. & Gory, in general form, but is more parallel

and narrower posteriorly. Head very coarsely punctured. ‘Thorax broadest at the

posterior angles, gradually (but very slightly) narrowed towards the front; the punctures

are larger than in C. costulata, and are irregularly scattered over the disk, much closer

towards the sides, especially in the place occupied by the longitudinal sublateral

impression of C. costulata; but there is no distinct impression, except close to the base ;

the median channel is entire, and strongly impressed. Hach elytron has about nine

strongly impressed striz (which, however, do not extend to the scutellar region), the

interstices very convex, the second and fourth a little more costiform than the others;

the striz (which do not extend to the base of the elytra) have a series of small punc-

tures, with frequent larger punctures, which are brassy and more or less filled with

white pile; the interstices towards the sides have a few small punctures. The apex of

each elytron is very obliquely truncated; and both the sutural and outer angle are

strongly and acutely dentiform, much more so than in C. costulata.

MELANOPHILA.

Melanophila, Eschscholtz, Zool. Atl. i. p. 9 (1829).

Trachypteris, Kirby, Faun. Bor.-Am. iv. p. 158 (1837).

Oxypteris, Kirby, ibid. p. 160 (1837).

Apatura, Lap. & Gory, Mon. 11. 1841, p. 1.

Diana, Lap. & Gory, ibid. p. 155.

The species of this genus occur throughout North America as far north as Vancouver’s

Island and Hudson’s Bay, and in Cuba, Brazil, Guiana, &c. In the Old World they

are found in Europe, Persia, Mongolia. Several species are also recorded from West

and South Africa.

1. Melanophila viridiobscura. (Tab. I. fig. 18.)

Apatura viridiobscura, Lap. & Gory, Mon. ii. p. 5, t. 2. f. 8*.

Hab. Mexico.—Guiana, Cayenne!; Amazons, Villa Nova (Bates).

This species was originally described from Cayenne; but there is a specimen in the

British-Museuin collection from Mexico which agrees well with one compared with the

type by Mr. Edward Saunders.

2. Melanophila limbata.

Viridi-senea, aureo micans ; thorace confertim punctato, lateribus parum arcuatis, basi utrinque fovea impressa ;

elytris foveolis quatuor impressis, crebre punctulatis, marginibus late rufo-cupreis.

Long. 5 lin.

Hab. Panama, Volcan de Chiriqui, 2000 to 3000 feet (Champion).

Var. Olivaceo-enea.

Hab. Nicaracua, Chontales (Janson).

MELANOPHILA.—TETRAGONOSCHEMA. 17

This species in general form and appearance closely resembles UM. inflammata, Lap. &

Gory ; the punctuation of the thorax, however, is rather less strong, and almost vanishes

at the extreme base. The elytra are very differently sculptured and are more shining ;

the punctures are fine and clearly defined, moderately close, but not at all crowded,

and there is no appearance of rugosity, except at the lateral margin. ‘There are two

subconfluent impressions at the extreme base of each elytron, more marked than in

M. inflammata; there are two round deep impressions on the disk of each elytron—

one a little before the middle, the other (nearer the margin) halfway between that

and the apex; these impressions are more marked than in UV. inflammata, and the

margins are more strongly serrate than in that species.

Two examples from Chontales differ in being of a deep bluish green, and the margins

are of a duller red.

3. Melanophila atra.

Melanophila atra, Gory, Mon. Suppl. p. 74, t. 13. f. 73°.

Hab. Mextco, Orizaba (Sallé); Nicaragua, Chontales (Belt).—-CotomB1a (coll. Brit.

Mus.); Guiana, Cayenne}.

4, Melanophila notata.

Apatura notata, Lap. & Gory, Mon. ii. p. 4, t. 1. f. 5°.

Hab. Nortu America! (coll. Brit. Mus.).—Mexico, Chiapas (Sumichrast, coll. Sallé).

The three Mexican specimens differ from the North-American examples in the British

Museum in having the spots confluent and forming a pattern; but I see no other differ-

ence to induce me to consider them more than varieties.

TETRAGONOSCHEMA.

Tetragonoschema, Thomson, Arch. Ent. i. p. 116 (1857).

This genus is founded on Antharia quadrata, Buquet (Rev. Zool. 1841, p. 194), from

Haiti. A second species has been described from Chili, and there is a third species in

the British Museum from Monte Video.

1. Tetragonoschema humeralis. (Tab. II. fig. 1.)

Breviter oblonga, depressa, nigro-cyanea; elytris transversim biimpressis, cyaneis (perparum viridi tinctis),

humeris plaga rufa ornatis.

Long. 2-23 lin.

Hab. Guaremata, San Gerénimo (Champion).

This beautiful species resembles 7. guadrata, Buquet, in general form (see Thomson,

Arch. Ent. i. t. 10. f. 2). It is of a deep blue-black colour, with the sides of the thorax

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, August 1882. D

18 .- SERRICORNIA.

and elytra more distinctly blue. The forehead is somewhat concave, extremely delicately

reticulate. The thorax is finely reticulate, but is nearly smooth on the disk. The elytra

are so extremely delicately reticulate that they appear smooth until they are examined

with a strong magnifying-glass, but the humeral region is rugulose. The shoulders are

bright coppery red; this colour extends for rather more than half the length of the

elytra, and at the base approaches near to the scutellum.

: POLYCESTA.

Polycesta, Solier, Ann. Soc. Ent. Fr. ii. p. 281, t. 11. f. 11 (1838).

Nemaphorus, Solier, Gay’s Hist. Chili, iv. p. 490.

The species of this genus are found throughout America, at least as far north as

Philadelphia; in the Old World in Barbary, throughout Africa, and in Madagascar.

1. Polycesta montesuma.

Polycesta montesuma, Lap. & Gory, Mon. ii. p. 4, t. 1. f 4.

Hab. Mexico.

There is a specimen in the British Museum (from Oaxaca) which may perhaps be

this species; but the first costa of the elytra is only one third the length of the elytra,

and not two thirds as described. | |

2. Polycesta velasco.

Polycesta velasco, Lap. & Gory, Mon. ii. p. 5, t. 1. f. 6.

Hab. Mexico (Saidé).

A single example from M. Sallé’s collection seems to be referable to this species.

HYPERANTHA.

Hyperantha, Mannerheim, Bull. Mosc. 1837, p. 99.

The species of this genus are found in South America, as far south as Monte Video.

1. Hyperantha interrogationis.

Buprestis interrogationis, Klug, Ent. Bras. ii. p. 424, t. 40. f. 4".

Peecilonota interrogationis, Lap. & Gory, Mon. i. p. 5, t. 1. f. 6.

Hyperantha consobrina, Lucas, Voy. Cast. pt. vil. p. 62, t. 4. ff 2.

Hab. Mexico (Sallé); Nicaragua, Chontales (Belt). VENEZUELA; Braziu} (cold.

Brit. Mus.).

CONOGNATHA.

Conognatha, Eschscholtz, Zool. Atlas, i. p. 9 (1829).

Pithiscus, Solier, Gay’s Hist. Chili, iv. p. 491.

Stigmodera (part.), Lap. & Gory, Mon. ii. |

CONOGNATHA.—TRINCOPYGE. 19

The species of this genus, some fifty in number, are distributed throughout South

America, except one, which is from St. Domingo. I have only seen two specimens from

Central America, which are as follows :—

1. Conognatha octoguttata. (Tab. II. fig. 3.)

Cyaneo-nigra, nitidissima, subtus cyanea; thorace antice oblique angustato, discrete subtiliter punctato, angulis

posticis supra impressis, scutello cordiformi, levi, medio viridi; elytris flavis, leviter subtiliter punctato-

striatis, guttis octo apiceque late cyaneo-nigris, abdomine pallide flavo.

Long. 93 lin.

Hab. Mexico, Playa Vicente (Sallé).

This species is flatter and broader posteriorly than any species known to me, and has

the elytra more obtuse at the apex. It is allied to C. badenit, Saund. (Trans. Ent. Soc.

1872, p. 250, t. 6. f. 1), but has more diverging posterior angles to the thorax, more

delicate punctuation, less transverse scutellum, and the serration at the apex of the

elytra is stronger.

2. Conognatha bifasciata. (Tab. II. fig. 8.)

Elongata, parallela, nitida, cyaneo-viridis; thorace convexo, antice parum angustato, angulis posticis vix

divergentibus, scutello sat elongato; elytris nigro-cyaneis (ad humeros et apicem ipsum cyaneis), postice

sulcatis, fasciis duabus (una ante medium, altera post medium) flavis, apice obtuse rotundato denti-

culato. ©

Long. 12 lin.

Hab. Panama, Chiriqui.

This species belongs to a small group of species (C. eximia, Saund., C. proserpina, Th.,

and C. chabrillacii) which have the elytra scarcely narrowed at the apex, and have the

denticulation commencing behind the yellow band.

It differs from all these in having two yellow bands on the elytra. From C. eximia

it differs, moreover, in having the thorax of avery different form, slightly narrowed

in front, and with the posterior angles much less acute and less diverging. In this

respect it agrees more nearly with C. trizonata, L. & G., ‘which should also perhaps be

included in this group.

TRINCOPYGE.

Trincopyge, LeConte, Journ. Acad. Nat. Sci. Philad. ser. 2, iv. p. 17 (1858).

1. Trincopyge alacris.

Trincopyge alacris, LeConte, Journ. Acad. Phil. ser. 2, iv. p.17 (1858) Trans. Am. Phil. Soc. n.s.

Xi. p. 219, t. 12. f, 2.

Hab. New Mexico.—MeExico, Guadalajara (Sal/é).

20 SERRICORNIA.

PTOSIMA.

Ptosima, Solier, Ann. Soc. Ent. Fr. ii. p. 277, t. 10. f. 8 (1833).

The species of this genus, some dozen in number, are found in the United States,

Europe, South Africa, India, China, and the Philippine Islands.

1. Ptosima leta.

Cylindrica, nigro-cyanea, nitida, griseo-albo pubescens; capite creberrime subtiliter punctato; thorace latera

versus nigro-velutino, creberrime sat fortiter punctato, linea mediana (antice abbreviata) levi; elytris

evidenter striato-punctatis, striis suturalibus et omnibus ad apicem impressis, interstitiis uniseriatim

punctatis, vitta humerali lata fasciaque ante apicem (ad suturam interrupta) flavis,

Long. 4 lin.

Hab. Mexico, Playa Vicente (Sallé, Brit. Mus.).

Resembles P. undecimmaculata, Hbst., in form and sculpture, but the punctuation of

the thorax is closer and finer. The humeral spot does not cover the shoulder,

ACMAXODERA.

Acmeodera, Eschscholtz, Zool. Atlas, i.p. 9 (1829).

Species of this genus are found throughout America and Africa, in Southern Europe,

in Persia, Syria, &c., and two or three species are recorded from India.

1. Acmezodera viridissima.

Acmeodera viridissima, Chevrolat, Col. Mex. fase. iv.

Acmeodera viridescens, Lap. & Gory, Mon. i. p. 5, t. 1. f. 6.

Acmaodera viridissima, Spinola, Ann. Soc. Ent. Fr. vii. p. 369.

Hab. Mexico (Brit. Mus.).

2. Acmeodera cuprina.

Acmeodera cuprina, Spinola, Ann. Soc. Ent. Fr. vii. p. 867.

Acmeodera hirtula, Gory, Mon. Suppl. p. 29, t. 5. f. 27.

Hab. Mexico, Alvarez Mountains (Dr. Palmer), Jalapa (Hoge), Parada (Boucard, coll.

Sallé).

3. Acmeodera kaupii.

Acmeodera kaupii, Thomson, Typi Buprestidarum, 1878, p. 58.

Hab. GUATEMALA.

. I only know this species from description. It is compared to A. flavomarginata,

Chev., but is uniform eneous, broader and more triangular, with more reticulate

sculpture on the elytra. It appears from these characters to be more allied to

A. cuprina, Spin.; but I know no species which has the apex of the elytra “ truncate

and minutely plurispinose ;” an approach to this, however, is seen in my A. flavosparsa.

ACM AODERA. 21:

4. Acmeodera corrosa.

Acmeodera corrosa, Thomson, Typi Buprestid. 1878, p. 58.

A, kawpii “simillima, vero: prothorace lateribus posticis minus dilatato, medio magis sparsim punctato;

elytris granulatione omnino diversa, magis grossa, intricata, irregulari; abdominisque punctulatione

multum magis levi, subito differt.

“Long. 12 mill, lat. 5 mill.”

Hab. MExico.

As this species is unknown to me, I give the original description in full.

5. Acmzodera regularis. (Tab. II. fig. 2.)

A. cuprine affinis, sed angustior, magis elongata et attenuata, nigro-cyanea; thorace crebre punctato, elytris

fortiter striato-punctatis.

Long. 64 lin.

Hab. Costa Rica (Brit. Mus.).

This species is near to A. cuprina, but is much more elongate, and has the elytra

regularly narrowed to the apex. The head is closely and rather finely punctured, and

has a short longitudinal ridge on the vertex. The thorax is like that of A. cuprina,

but the punctuation is perhaps a trifle less strong, and the lateral impression has a little

more the appearance of a round fovea. LElytra more as in A. flavomarginata, but still

more elongate. The suture is similar, but has a single line of fine punctures. The

punctures forming the rows are distinctly larger than in that species, and are generally

rather elongate, those in the first and second rows are somewhat distant from each

other; the second interstice is a little raised at the base, and the fourth is very slightly

raised for its whole length; all the interstices are sparingly punctured, each puncture

bearing a stiff black hair. Underside of the insect brassy; the prosternum strongly

punctured; the sides of the abdomen with round shallow punctures, the middle

delicately punctured.

6. Acmeodera lateralis.

Acmaodera lateralis, Chev. Col. Mex. fasc. i.; Lap. & Gory, Mon. i. dem. p. 3, t. 1. f.3; Spinola,

Ann. Soc. Ent. Fr. vii. p. 360.

Hab. Mexico, Puebla (Salé).

7. Acmeodera flavomarginata.

Buprestis flavomarginata, Gray, Griffith’s Anim. Kingd. xiv. p. 358, t. 31. £. 2.

-Acmeodera flavomarginata, Chevrolat, Col. Mex. fase. iii. 1834; Lap. & Gory, Mon. p. 2,t. 1.

f. 2; Spinola, Ann. Soc. Ent. Fr. vii. p. 360.

Hab. Norru America, United States, California (Crotch, Mus. Brit.).—Mexico, Gua-

najuato (Dugés, coll. Sallé), Almolonga, Cordova (Hoge), Oaxaca (Sallé); GUATEMALA,

San Gerénimo (Champion).—GuapDALOUPE? CHILI?

22 SERRICORNIA.

In Mr. E. Saunders’s ‘Catalogue of Buprestide’ the locality against this species is

Guadaloupe, but (although it is not an unlikely habitat for the species) I know of no

other authority for it. There is a specimen in the British Museum which appears to

be marked Chili, but the label is not distinct. M.Chevrolat, in his Coleoptera of

Mexico, gives a reference to Griffith’s ‘Animal Kindgom,’ but adds “sine descriptione,”

which is misleading, as Gray fairly describes the species.

8. Acmeodera flavosparsa. (Tab. II. fig. 4.)

A, cuprine affinis, nigro-enea, nitida, pilosa; thorace fortiter punctato, disco concavo, lateribus impressis

confertim punctatis; elytris gradatim bene attenuatis, dimidio apicali guttis nonnullis notato, fortiter

striato-punctatis, latera versus clathrato-punctatis, interstitio quarto sextoque elevatis.

Long. 5-53 lin.

Hab. Mexico (Coffin, Mus. Brit.).

This species comes nearest to A. cuprina, but is of different form and is of a brassy

black colour. The head is closely punctured, but has a short smooth line in the

middle. ‘The thorax is very broad, broadest at the base, obliquely narrowed anteriorly,

deeply excavated in the middle (more so than in A. cuprina), sloping down at the sides,

with a round impression near the base; strongly but not very thickly punctured on the

raised parts, very closely punctured at the sides. The elytra are at the base as broad

as the thorax, gradually narrowed to the apex, flattened on the disk; the apical half

with numerous orange-yellow spots, which in one specimen partially coalesce and form

four irregular patches on the sides; the punctures which form the rows are deep,

generally elongate-ovate, not crowded together as in A. cuprina, but those which would

form the fifth and sixth rows and the seventh and eighth unite transversely and form

double-sized punctures; the third interstice is very narrow and interrupted and partly

hidden by the wider and elevated fourth interstice; the fifth interstice is only traceable

at the bottom of the large punctures; the sixth is distinct and elevated (but lost

posteriorly); the seventh is lost in the large punctures; the eighth is narrow.

9. Acmzodera rubronotata.

Acmeaodera rubronotata, Lap. & Gory, Mon. i. p. 5, t. 1. £.57.

Acmeodera hemorrhoa, LeConte, Proc. Ac. Phil. 1858, p. 69°; Tr. Am. Phil. Soc. ser. 2, xi. p. 228,

t. 12. f. 4.

Acmaodera stellaris, Spinola?, Ann. Soc. Ent, Fr. vii. p. 364.

Hab. Texas, Laredo 2.—MExico, Izucar, Puebla, Cuernavaca, Orizaba (Sallé). —

“ Cn” 1,

This species was originally described as from Chili, but no doubt by mistake.

10. Acmzodera impluviata.

Acmeodera impluviata, Mann. Bull. Mosc. 1837, pt. viii. p. 267.

Hab. Mexico, Oaxaca 1, Tehuantepec (Sallé); Nicaragua, Chontales (Belt).

ACMAODERA. 23

If I have correctly identified this species, it is extremely close to A. rubronotata,

L. & G., and agrees with it in every respect, except in having the head and thorax

black (with a faint tinge of steel-blue), the elytra dark steel-blue, with numerous small

yellow dots, but sometimes without spots, and in having the thorax a little broader and

more rounded at the sides.

11. Acmezodera mima.

Acmeodera mima, Gory, Mon. Suppl. p. 29, t. 5. f..26.

Hab. Mexico. -

I only know this species from the figure and description. It would appear to differ

from A. semivittata, LeC., only in the absence of the yellow line on the side of*the

thorax.

12. Acmezodera croceonotata.

Acmeodera croceonotata, Gory, Mon. Suppl. p. 27, t. 5. f. 24.

‘Hab. Mexico.

I am unable to identify this species with any known to me.

13. Acmzodera superba. (Tab. II. fig. 5.)

Ceruleo-viridis, aureo-micans, nigro-pilosa, subtus brevissime griseo-pilosa; thorace elytris vix latiore, disco

impresso subtiliter punctato, lateribus rugoso-punctatis, supra perparum oblique impressis, leviter rotun-

datis, angulis posticis obtusis; elytris sat convexis, striato-punctatis, macula rotundata ad basin, altera

laterali ad medium, fasciaque postice sanguineis.

Long. 53 lin.

Hab. Muxico, Puebla (Sal/é).—Braziu (Brit. Mus.).

The example from Brazil has a red spot on the thorax close to the posterior angle,

and the spot at the middle of the elytra is more transverse.

The coloration of this species is so unlike that of any of the other species of the

genus that it is difficult to locate it satisfactorily ; but, setting aside the coloration, it

seems best to place it near A. scalaris, Mann., with which it agrees in form and general

characters. . |

14. Acmzodera scalaris.

Acmeodera scalaris, Mann. Bull. Mosc. 1837, pt. viii. p. 251.

Acmeodera semivittata, LeConte*, Proc. Ac. Phil. 1858, x. p. 69; Trans. Am. Phil. Soc. n.s. xi.

Pp. 227.

Hab. Texas, Eagle Pass ?,—Mexico, Mineral del Zimapan1, Hacienda de Bleados, San

Luis Potosi (Palmer), Cuernavaca, Puebla (Sailé).

This species has two yellow stripes reaching to the middle of the elytra, as described

both by Mannerheim and LeConte. In the British Museum there is an example

24 SERRICORNIA.

labelled by Mr. Edward Saunders “A. semivittata, LeC., compared with type.” This

specimen appears to me to agree quite well with Mannerheim’s description of

A. scalaris, of which LeConte makes no mention.

The specimen from Puebla differs from all the others in having the thorax a little

broader, more strongly punctured, and has a narrow yellow stripe on the apical margin

of the elytra. |

15. Acmeodera picta. (Tab. II. fig. 6.)

Nigro-enea, nigro-pilosa, subtus enea griseo-pilosa; thorace crebre fortiter punctato, linea laterali flava;

elytris striato-punctatis, baseos linea brevi, in margine altera, postice divaricata, et in regione apicali

maculis tribus transversis flavis.

Long, 4 lin.

Hab. Mexico, Orizaba (Sallé).

This species is very close to A scalaris, but differs in being smaller, darker in colour,

and the thorax more strongly punctured. ‘The elytra are also rather more strongly

punctured, and the stripe in the middle of the base is only one quarter the length of

the elytron. There is a small spot near the suture about the middle of the elytron ;

the lateral stripe emits a branch (just below the shoulder) which nearly (and in one

example quite) joins the apex of the middle stripe; about the middle of the elytron

the lateral stripe leaves the margin, but emits two short branches to the margin.

Behind this there are three transverse yellow spots.

One specimen has the lateral stripe continued zigzag to near the apex of the elytron,

emitting short branches on each side, as in A. scalaris, making five black spots on the

margin.

Another specimen has the middle stripe only indicated by a spot in the middle of the

base; the lateral stripe stops short soon after emitting its first branch, leaving four

transverse spots beyond this. :

The specimens are from various sources, the type only having the special locality

* Orizaba.”

16. Acmeodera flavosticta. (Tab. II. fig. 13.)

Obscure seneo-cuprea, nigro-pilosa, subtus e#nea griseo-pubescens; thorace elytris latiore, crebre sat fortiter

punctato, disco parum impresso, antice canaliculato, lateribus vix impressis, ad basin foveola rotundata ;

elytris obscure seneis, apicem versus violaceis, sat fortiter striato-punctatis, vitta angusta humerali

guttisque plurimis ochraceis.

Long. 43-53 lin.

Hab. Mexico (Sallé, Mus. Brit.).

This is a broad species, with the thorax rather broader than the elytra, with rounded

posterior angles, and with scarcely any trace of the usual oblique impression at the

sides; there is, however, a small round fovea at the base. One specimen has a small

red spot on the side of the thorax, but the other examples have no trace of it. The

ACM ZODERA. 25

punctuation of the thorax and elytra is considerably stronger than in A. scalaris. The

elytra have a narrow lateral yellow line extending to near the middle; it has a small

notch just below the shoulder, and at its apex unites with a yellow spot which surrounds

a black spot on the margin. There is a small oblique spot at the base near the suture,

a smaller one just below this, then two spots which are sometimes united obliquely,

then one or two spots near the suture, then two on the margin, the next is at the

suture, and then there are two on the margin. The apical segment of the abdomen is

rather broadly truncate in the male.

17. Acmeodera venusta. (Tab. II. fig. 12.)

Statura A. flavosticte, sed differt thorace elytris haud latiore, angulis posticis fere rectis, lateribus minus

rotundatis, supra impressione obliqua; elytris guttis plurimis parvis flavis, ad apicem utrinque maculis

tribus rufis ornatis.

Long. 6 lin.

Hab. Mexico (Sallé, Mus. Brit.).

This species somewhat resembles A. flavosticta in its general form and coloration.

The thorax is much more finely punctured on the disk, the lateral impression is distinct

and terminates in a round fovea at the base. The sides are much less rounded, and the

posterior angles fit close to the elytra. The elytra have numerous small yellow spots,

which seldom extend beyond one interstice, except several which unite and form a

larger spot about the middle near the side; there is a single spot behind the humeral

callus, another a little behind it on the margin; two about the middle of the margin

(on the ninth and tenth interstices) close to the larger spot above mentioned ; behind

these are two others, placed similarly; then there is the first red spot, a little removed

from the margin; then the second red spot, nearer the margin, and with a yellow spot

outside it; and close to the apex is the third red spot. The apical segment of the

abdomen is arcuately acuminate.

18. Acmzodera longipennis. (Tab. II. fig. 11.)

Elongata, sat angusta, nigro-enea, nigro-pilosa, subtus enea, griseo-pilosa; thorace bene transverso, antice

et postice parum angustato, lateribus medio parum angulatis; elytris elongatis, flavo maculatis, supra

depressis, punctato-striatis, striis juxta suturam vix impressis subtiliter punctulatis, reliquis fortiter

punctatis, interstitio quarto perparum elevato.

Long. 52 lin.

Hab. Mexico (Saldé).

This species is allied to A. favopicta, but has the elongate form of A. rubronotata,

with the elytra flattened on the back as in A. flavomarginata. The thorax is very

short; at the base it is the same width as the base of the elytra, at the middle it is a

little broader and is slightly but distinctly angular. The disk is not very strongly and

not very thickly punctured, the basal impression is well marked, and the anterior

channel very distinct ; the sides are rugosely punctured, with the usual impression deep

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, dugust 1882. E

26 SERRICORNIA.

posteriorly, shallow anteriorly and narrow. There is a small marginal spot below the

shoulder, another just behind it; a larger cuneiform spot about the middle, and four or

five spots along the apical margin; there is a transverse streak about halfway between

the cuneiform spot and the apex; and on the second and third interstices there are

several very small yellow dots. The apical segment of the abdomen is narrowed, but is

slightly obtuse at the apex itself.

19. Acmeodera stellaris. (Tab. II. fig. 10.)

Acmeodera stellaris, Chevr. Col. Mex. fase. vill. p. 189.

Hab. Mexico.

I do not know what the species is which Gory (Mon. Suppl. p. 28, t. 5. f. 25) has

figured and described under this name. It cannot be the A. stel/aris of Chevrolat, the

type of which is now in the British Museum, and is narrower, differently spotted, has

no lateral impression on the thorax, and belongs more nearly to the A. pulchella group ;

whilst A. stellaris, Gory, resembles A. rubronotata, but has a yellow line at the side of

the thorax. The head and thorax of A. scalaris put on to the elytra of A. rubronotata

would give a good idea of the species, judging from the figure.

A. stellaris, Chevr., of Spinola (Ann. Soc. Ent. Fr. vii. p. 364) appears to be A. rubro-

notata, but he does not describe the colours.

20. Acmeodera setosa. (Tab. II. fig. 9.)

Nigra, parum nitida; thorace confertim ruguloso-punctato, basi medio impressa, lateribus oblique foveolatis ;

elytris quam thorax paulo angustioribus parallelis, ad apicem angustatis, supra paulo depressis, fortiter

punctato-striatis, interstitiis angustis, brevissime pallide setosis, macula parva pone humeros, altera

obliqua ad medium, et duabus ante apicem flavo-ferrugineis.

Long. 3 lin.

Hab. Mexico (Sallé).

This species is allied to A. ornata, Fabr., but in form is somewhat intermediate

between that and A. tubulus, Fabr. The thorax is a very little broader than the elytra,

and the latter are slightly impressed on the back, so that it may well be placed near

A. ornata. “ead rather densely clothed with testaceous pubescence. Thorax very

closely, rather strongly, but not deeply punctured; the disk is slightly impressed, and

there is a somewhat large deep impression in the middle of the base; within each

posterior angle there is a deep impression, which is carried forwards obliquely to near

the anterior angle. The elytra are nearly parallel for three quarters their length and

then narrow to the apex. The punctures in the strie are strong and generally ovate.

The three or four interstices nearest the suture are about the width of the punctures in

the striz, shining, each with a single line of very fine, rather remote, punctures; the

following interstices are very narrow, narrower than the punctures in the strie; the

eighth is again a little broader and a little more elevated, and has its surface uneven,

ACM ZODERA.—SPHENOPTERA. 27

almost rugulose. The transverse spot at the middle of the elytron does not quite reach

the margin; it is directed obliquely upwards, and extends to the second or third

interstice. In the apical region there is a longitudinal spot on the fourth and fifth

interstices, with an oblique transverse spot immediately below it; and below the trans-

verse spot is another longitudinal one on the third and fourth interstices.

Two examples have the middle and posterior spots extended and. more or less united,

one of them having an additional spot near the base. Another specimen has all the

posterior spots very much reduced in size.

The crenulation round the apical margins of the elytra is very slight, very close, and

not very acute.

21. Acmzodera tubulus.

Buprestis tubulus, Fabr. Syst. El. ii. p. 200.

Buprestis culta, Weber, Obs. Ent. p. 75.

Acmeodera tubulus, Lap. & Gory, Mon. i. p. 11, t. 3. f. 15.

Acmeodera 14-guttata, Lap. & Gory, Mon. i. p. 12, t. 3. f. 18.

Hab. Norta America, St. John’s Bluff, Texas (Brit. Mus.).—Mexico (Brit. Mus.).

22. Acmeodera exilis. (Tab. II. fig. 7.)

Hlongata, postice angustata, nigro-eenea; thorace elytris paulo latiore, confertim punctato, utrinque foveola

rotundata impresso, lateribus rotundatis; elytris guttis octo flavis transversis ornatis, punctato-striatis,

interstitiis uniseriatim punctatis.

Long. 2+ lin.

Hab. Mexico (Sallé).

This species is very close to A. tubulus, Fabr., but is rather less convex, and decidedly

more acuminate posteriorly, the elytra almost narrowed from the base. The thorax is

the same form, but less convex, less strongly punctured, and the punctures are not so

crowded ; the fovea on each side of the base is well marked and round. The elytra are

moderately strongly punctate-striate, but not so strongly as in A. tubulus; the dorsal

interstices are flat and shining, but the surface of those towards the sides is rendered

uneven by the punctures. Each elytron has four deep yellow transverse spots (or

perhaps they might more properly be called fascie); they all touch the margin and

extend to about the third interstice; the first is near the base and is directed a little

obliquely downwards towards the suture ; the second is about the middle of the elytron,

and is somewhat curved upwards; the third is about a quarter from the apex; the

fourth is subapical.

SPHENOPTERA.

Sphenoptera, Solier, Ann. Soc. Ent. Fr. ii. p. 229 (1883).

The species of this genus, some hundred and fifty in number, have hitherto only been

found in the Old World, where they are extensively distributed.

E 2

28 . SERRICORNIA.

The following species is only provisionally included. It has much the form of

S. neglecta, Klug, but is rather more parallel than that and almost all the species, and

has a very small scutellum. Having seen only a single specimen of the species, I refrain

at present from proposing a distinct genus for its reception.

1. Sphenoptera purpurascens. (Tab. II. fig. 14.)

Elongata, parallela, nitida, purpurascens; capite creberrime viridi punctato, thorace minus crebre viridi

punctato, parum transverso, fere parallelo ; scutello parvo, transverso ; elytris thorace vix latioribus, postice

gradatim angustatis ad apicem sexspinosis, evidenter striato-punctatis, interstitiis secundo quartoque ad

apicem paulo elevatis.

Long. 63 lin.

Hab. Honvuras (Brit. Mus.).

The thorax has the lateral line sloping very obliquely downwards and obliterated

anteriorly. At the base of the thorax there are three punctiform impressions, one in

the middle and one on each side; the base itself is straight in the middle and slightly

sinuate on each side; the posterior angles are right angles. ‘The punctures forming

the lines on the elytra are not very close, but very distinct; there are a few punctures

here and there on the interstices. The apex of each elytron has three spines; of these

the second is a little removed from the sutural one and is a little more produced; the

third is removed some distance from this, is more lateral, and very acute. The line

dividing the prosternum from the flanks of the prothorax is a straight line from its

commencement on the front margin to the coxal cavity. The metathoracic parapleura

are very narrow, parallel, and about three times as long as broad. The posterior coxal

plate is very broad internally, parallel for about half its length, then obliquely narrowed

externally.

ACTENODES.

Actenodes, Lacordaire, Gen. des Coléoptéres, iv. p. 72 (1875).

The species of this genus are chiefly confined to Central and South America. Two

occur in North America; and it appears to me that Chrysobothris acuminipennis, Gory,

from Madagascar, and perhaps one or two other species of Chrysobothris from Africa,

would be better transferred to Actenodes.

1, Actenodes chalybeitarsis.

Belionota? chalybeitarsis, Chevr. Col. Mex. fasc. 1. 1833 °.

Chrysobothris chalybeitarsis, Lap. & Gory, Mon. ii. p. 2.

Chrysobothris curvicollis, Gory, Mon. Suppl. p. 158, t. 27. £. 1537.

Hab. Mexico, Boca del Monte1, Cordova(Sallé), Misantla, Plan del Rio(Hége); Britis

Honpbvuras, river Sarstoon (Blancaneaux) ; GuaTEMALA, Izabal (Sallé), San Isidro, Chaco},

A wmf. fi LA» x,

fail rn f VE boty t

ACTENODES, 29

Las Mercedes, El Reposo, Torola, Pantaleon, Paraiso, Mirandilla (Champion); Nicaragua,

Chontales (Belt, Janson).—CotomBia?; VENEZUELA (Brit. Mus.).

2. Actenodes fulginea. (Tab. II. fig. 15.)

Statura et color fere A. nobilis (Linn.). Capite cupreo, vertice viridi; thorace nigro-purpureo, vittis tribus viridi-

aureis et cupreis ornato; elytris purpureis, ad medium nigris, nitidis, macula basali vittaque apicali aureo-

viridibus, fasciisque duabus bene dentatis aureo-viridibus intus cupreo marginatis, regione discoidali

parcius subtilissime punctulata; abdomine aureo-viridi.

Long. 54-9 lin.

Hab. Nicaragua, Chontales (Belt).

This species is extremely close to A. nobilis (L.), and has the markings precisely

similar; but it differs in having the elytra more delicately and less closely punctured,

especially in the discoidal area; this gives the elytra a more shining appearance than

is the case in A. nobilis.

~ In describing this species one is met with this difficulty. Under the head of A. nobilis

I find two species confounded: one has the elytra densely punctured and is somewhat

dull. All the specimens with localities are from Cayenne.

The second is brighter in appearance, and has the punctuation of the elytra decidedly

less close and more delicate. The specimens are from Ega, St. Paulo, Santarem, and

Para.

I have presumed that the specimens from Cayenne are the true A. nodilis(L.). They

are certainly the A. nobilis of Laporte and Gory.

The Amazonian specimens above alluded to average smaller than those from Nica-

ragua, are more uniform in colour, and have less coppery margining the bands on the

elytra. These differences, however, are slight, and I think it better to consider them

merely varieties of A. fulginea.

Care must be taken not to confound these species with A. aurolineata, which has

precisely similar markings, but has more coarsely punctured elytra and a leaden-green

abdomen.

3. Actenodes regularis.

« Chrysobothris regularis, Lap. & Gory, Mon. ii. p. 82, t. 6. £. 46°.

Hab. Mexico 1, Orizaba (Sallé) ; HonDuras.

In the British-Museum collection there is an example from Honduras which differs

from the specimen from Mexico in being smaller (only 5 lines long) and more strongly

| sculptured on the elytra; the head is more closely punctured, and instead of being

brownish bronze is green, with a coppery hue on the vertex, and with the longitudinal

furrow much deeper and violet in colour; the apical spot on the elytra is at the apex

instead of being just within it.

30 | SERRICORNIA.

4. Actenodes bifasciata. (Tab. II. fig. 16.)

Aineo-olivacea; thorace plus minusve purpureo tincto, sat crebre punctato, transversim aciculato, subtiliter

punctulato, basi transversim leviter impressa; scutello cupreo ; elytris macula basali, altera apicali, fasciisque

duabus undulatis aureo-viridibus; abdomine fusco-zneo.

Long. 64-74 lin.

Hab. Mexico, Orizaba (Sailé).

This species somewhat resembles A. regularis, but is broader and less parallel,

differently coloured, and the thorax broader at the posterior angles, &c. Head.

green above, dark violet in front, strongly punctured, with scarcely any trace of longi-

tudinal impression. Thorax very transverse, broadest at the posterior angles, slightly

narrowed anteriorly, finely but not very thickly punctured, with some transverse

scratches on the disk, which change into closer and subconfluent rugule at the sides.

The usual impression on the elytra at the base is very slight. The punctuation

between the bands is fine, and the punctures are weli separated from each other ;

immediately above the first band the sculpture is decidedly stronger. ‘The bands on the

two elytra are nearly parallel to each other and form two W’s, one above the other,

the space between them being nearly black, and the bands not bordered with coppery.

5. Actenodes levifrons. (Tab. II. fig. 17.)

Supra purpurea, subtus viridis; capite lete viridi, fere levi, vertice fovea profunde impressa; thorace subtiliter

sat crebre punctulato, ante basin transverse leviter impresso, basi ipsa et elevata et viridi ornata, margine

antico angustissime viridi, angulis posticis extrorsum productis, acutis; elytris sat crebre subtiliter punc-

tatis, macula basali, fasciis duabus undatis vittaque apicali viridibus ; abdominis lateribus obscurioribus.

1 1 yy

Long. 63-77 lin.

Hab. Nicaraeua, Chontales (Janson).

This species is allied to A. rugulosa, and should occupy a position between that and

A. hopfneri, Gory. The head is closely and finely punctured above between the eyes,

flattened in front, smooth and shining, with a few punctures placed very irregularly ;

there is a fine median impressed punctured line, surmounted by a deep fovea. The |

thorax is extremely delicately punctured, and is remarkable for the acute prominent

posterior angles. The elytra have a little green colour near the scutellum and along

the suture at the base: the first band consists of a crescent on each elytron; the second

band is more angular and forms a very wide W ; both bands are very narrowly margined

with coppery. The abdomen is golden green, more neous at the apex, with the sides

tinted with purple or bluish.

6. Actenodes hopfneri.

Chrysobothris hopfneri, Gory, Mon. Suppl. p. 170, t. 29. f. 165".

Hab. Mexico}, Orizaba (Sallé); Guaremata, San Gerénimo (Champion).

The specimen from Guatemala differs from the Mexican examples in having the

ACTENODES. 31

bands on the elytra a little straighter at the suture ; the abdomen is more brightly

coloured, with the coppery colour at the sides deeper and more extended.

7. Actenodes calcarata.

Belionota calarata, Chevr. Col. Mex. fase. ii. p. 103°.

Chrysobothris fulgurata, Lap. & Gory, Mon. ii. p. 29, t. 6. f 42°; Mann. Bull. Mose. 1837, p. 80.

Chrysobothris lebasi, Lap. & Gory, Mon. ii. p. 30, t. 6. f. 43°.

Hab. Mexico, Zimapan }, Orizaba (Sal/é), Oaxaca (Brit. Mus.); Guatemata, Chaco),

Panzos (Champion) ; NICARAGUA, Chontales (Belt)—Co.Loms1a4, Carthagena ?.

8. Actenodes undulata. (Tab. II. fig. 20.)

Enea, parum nitida, crebre sat fortiter punctata; thorace utrinque prope basin transversim impresso, angulis

posticis paulo divaricatis, acutis; elytris fasciis duabus undulatis maculaque triangulari ante apicem

purpureo-nigris ; abdominis segmentorum suturis apiceque violaceo- -nigris.

Long. 63-74 lin.

Hab. Muxico(Sallé); British Honpuras (Blancaneaux); GuateMata, Zapote, Torola

(Champion); Nicaragua, Chontales (Belt).

This species was named both in M. Sallé’s collection and in the British Museum as

A. yucatana. I am, however, unable. to find it described, and have not seen it from

Yucatan. It is allied to A. calcarata, Chevr., but is a trifle narrower, less opaque, and

the sculpture is less close and less rough ; its colour is paler, more brassy, and frequently

almost silvery. The thorax has the posterior angles somewhat diverging ; the transverse

impression at the base is only visible on each side, and in some examples is not strongly

marked, ‘The first band on the elytra is near the base; commencing on the shoulder it

descends a little, then ascends nearly to the scutellum, and then turns downwards to

the suture. The second band is rather broad, rather straighter; it consists of two arcs

(one on each elytron) with a dilatation at the suture. The apical area of each elytron

is more or less taken up by the triangular dark spot.

Two of the specimens (one from Honduras and one from Zapote) have the clypeus

violet, with green angles and a green central line.

9. Actenodes humeralis. (Tab. II. fig. 19.)

Elongata, sat angusta, parum nitida, creberrime punctata, enea; thorace postice leviter transversim impresso,

angulis posticis fere rectis; elytris prope suturam costa (antice et postice abbreviata) instructis, sub

humero macula roseo-cuprea ornatis ; corpore subtus viridi, lateribus apiceque eneis.

Long. 6 lin.

Hab. Nicaraava, Chontales (Belt).

This species is nearest to A. hopfneri, Gory, but is still narrower. The posterior

angles of the thorax are not diverging, they are right angles or perhaps a little acute:

the punctuation is fine and close; the transverse basal impression is scarcely visible in |

the middle. The elytra have a well-marked fine costa near the suture, and there is an

32 SERRICORNIA.

indication of a second (very short) on the disk. The punctuation is closer and stronger

than in A. hopfneri, especially a little way below the shoulders.

10. Actenodes reichei. (Tab. II. fig. 18.)

Actenodes reichei, Thomson, Typi Buprestid. 1878, p. 74.

Hab. Mexico}, Playa Vicente, Santecomapan, Tuxtla (Sallé), Oaxaca (Brit. Mus.) ;

GuaTEMALA, Chacoj (Champion); Nicaragua, Chontales (Janson).

This species is described as “obscure viridi-metallica ; elytra obscure brunneo-metaliica,

maculis 10, et lineis 2 obliquis posticalibus viridi-cupreis, ornata. Long. 16-17 mill.”

M. Thomson gives the species as A. reiche?, Laferté, MSS., stating that it is near to, but

very distinct from, “A. desmarestti, Gory.”

In the British-Museum collection there are specimens with the label “ reichez, Laf.,”

named from Laferté’s collection, and therefore no doubt identical with M. Thomson’s

species. The description omits to mention that the ten spots are in reality frosted

impressions, and their position is not stated; there are two on each elytron close to the

base, subconfluent, two some way before the middle (one near the suture and the other

on the margin), and a single one in the middle of the elytron, rather behind the middle.

I know of no such species as “A. desmarestit, Gory.”

11. Actenodes sallei.

Actenodes sallei, Thomson, Typi Buprestid. 1878, p. 73.

Hab. Mexico.

I only know this species from description, of which the following is an extract :—

“Obscure metallica; elytra sutura marginibusque cuprea. Scutellum viride. Elytra

pone suturam costis 2 longitudinalibus obsoletis instructa, lateribus posticis nec denti-

culata, apice biacuta. Tarsi obscure cyanei. Long. 13 mill.”

CHALCANGIUM, n. gen.

General form and characters of Chrysobothris. Eyes widely separated above. Antennal fossa moderately

large, shallow, and round. Prosternal process only slightly angular on each side immediately behind the

anterior coxe. The metasternum not emarginate in front. Anterior femora simple, not dentate. Tarsi

very slender; the third joint with its apical angles produced into two slender spur-like processes, as in

Actenodes, but in a less degree, and not diverging ; the fourth joint very small (not produced into a lamina

below), almost hidden in the third joint. Abdomen with a fine median raised line on the second to fifth

segments. Thorax narrower than the elytra, the posterior angles fitting close to the elytra. Scutellum

small, elongate, triangular.

The species for which I propose this new genus has somewhat the appearance of

Chrysobothris costifrons, but is more elongate and has no impressions on the elytra.

The almost simple form of the prosternal process, the unarmed anterior femora, and

the peculiar structure of the tarsi necessitate the creation of a new genus for its

reception. | |

CHALCANGIUM.—COLOBOGASTER. 33

1. Chaleangium longipenne. (Tab. III. figg. 1, 1a.)

Elongatum, sat angustum, parum convexum, eneum; thorace transverso, creberrime punctato, ad basin subito

paullo angustato, angulis posticis acutis; elytris quam thorax latioribus, postice gradatim angustatis,

bicostatis, confertim subtiliter punctatis, guttis irregularibus nigris levibus, marginibus ad apicem acute

serratis.

Long. 10 lin.

Hab. Mexico, Puebla (Saddé).

The head is densely punctured and rugose in front. The margin of the clypeus is

slightly flexuous, not notched nor emarginate in the middle, where it is shining and

olive-green. The antenne are black. The thorax has the punctures on the disc

moderately close, and the smooth interspaces bronzy black, the sides being coarsely

punctured; the posterior angles are impressed above, and just above this there ‘is

on each side an ovate oblique impression. The scutellum is smooth, coppery, very

acutely prolonged. The elytra are one fifth broader than the thorax; the surface is

finely and very densely punctured, but there are very numerous, irregular, subconfluent,

nearly black spots or spaces. Each elytron has two coste: the first is entire, more

distinct at the apex than at the base; the second is short, and does not extend to the

base or apex; besides these there is a short costa near the scutellum, this costa joining

the suture not far from the base, and there is a short submarginal costa at the apex.

The prosternal process is smooth and shining, pitchy at the apex. The first segment

of the abdomen has a slight median impressed line; the second to the fifth segments

have a fine median raised line, the fifth segment having, moreover, a raised line on

each side.

COLOBOGASTER.

Colobogaster, Solier, Ann. Soc. Ent. Fr. ii. p. 808 (1838).

This genus was proposed by Solier for Buprestis quadridentata, Fabr. It should,

however, scarcely be separated from Chrysobothris; I merely adopt it here as a matter

of convenience for the large species allied to C. guadridentata, these having simple

anterior femora.

1. Colobogaster puncticollis. (Tab. III. fig. 2.)

Elongata, depressa, sat nitida, viridi-aurata; capite dense evidenter punctato; thorace quam longitudo duplo

latiore, antice oblique angustato, supra utrinque planato, crebre punctato, postice juxta scutellum parum

convexo fere levi, disco nigro-violaceo, linea mediana viridi, lateribus post medium fere parallelis, per-

parum sinuatis; scutello elongato, acuminato, obsolete parce punctulato; elytris nigro-violaceis, ad basin

thorace vix latioribus, apicem versus paullo angustatis, creberrime subtiliter punctulatis, costis sex parum

elevatis instructis, apice leviter emarginato; abdominis segmentis late cyaneo marginatis ; segmento ultimo

late truncato, medio triangulariter inciso, utrinque leviter sinuato, angulis lateralibus acutis.

Long. 16 lin.

Hab. Mexico, Orizaba (Sallé); Nicaragua, Chontales (Janson).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1887. F

34 SERRICORNIA.

The forehead has a shallow horseshoe-shaped impression. The thorax differs in form

from that of any other species known to me; it has a very slight shallow impression on

each side near the front margin, and a more evident one behind it; nearer to the lateral

margin and behind the lateral angulation there is a small round impression. ‘The

scutellum is rather more than half the length of the thorax, very broad at the base,

very acuminate at the apex. Each elytron has three coste, and there is a slight indi-

cation of a humeral one. The under flanks of the prothorax are closely punctured

(finely and confluently so near the cox); but there is a short, smooth, arcuate line,

nearly parallel with the posterior margin, commencing at the lateral angulation, and

extending towards, but not reaching, the line of the prosternum. This smooth line is

generally present in the species of this group; usually, however, it is a raised line,

and much more directed forwards.

2. Colobogaster cyanitarsis.

Colobogaster cyanitarsis, Lap. & Gory, Mon. ii. p. 6, t. 1. f. 4°.

Hab. Mexico, Oaxaca (Sallé).—Cotomsia; Braziu!; Bottvia (Brit. Mus.).

A single example from M. Sallé’s collection appears to me to be referable to this

species. It differs, however, from any specimens in the British-Museum collection in

having the posterior angles of the thorax obliquely turned in. ‘This is not a character

upon which I should venture to describe a new species from a single example, as indi-

viduals in this genus are somewhat liable to variation in this respect.

3. Colobogaster infra-viridis.

Colobogaster infra-viridis, Thoms. Typi Bupr., Append., i. p. 39 (1879)?

Hab. Mexico}.

M. Thomson states that this species differs from C. cyanitarsis in having the thorax

somewhat hexagonal. It does not, however, appear to be the insect from M. Sallé’s

collection, described above as C. puncticollis.

4, Colobogaster chlorosticta.

Buprestis chlorosticta, Klug, Nova Acta Acad. Leop.-Carol. Nat. Cur. xii. pt. 2, p. 421 (1825) '.

Colobogaster hopei, Lap. & Gory, Mon. ii. p. 7, t. 1. f£. 5%.

Hab. Nicaracua, Chontales (Janson).—Co.LomBia ; Braziu!* (brit. Mus.).

A single example from Nicaragua only differs from Brazilian specimens in having

the elytra less shining, and with the green spots before the middle confluent and

forming a band.

CHRYSOBOTHRIS. 30

CHRYSOBOTHRIS.

Chrysobothris, Eschscholtz, Zool. Atlas, i. p. 9 (1829) ; Horn, Trans. Am. Ent. Soc. xiii. p. 67 (1886).

Species of this genus are found in all parts of the world.

1. Chrysobothris sex-punctata.

Buprestis sex-punctata, Fabr. Syst. Eleuth. ii. p. 206°.

Colobogaster sea-punctata, Lap. & Gory, Mon. ii. p. 9, t. 2. f. 7” (nee Montrouz.).

Hab. Nicaracua, Chontales (Belt); Panama (Janson).—Soutn America!, Cayenne 2,

Brazil.

I think it is open to question whether the Brazilian specimens usually associated

with C. sea-punctata (Fabr.) really represent the same species; Central-American

examples appear to me to be less strongly sculptured.

2. Chrysobothris ichthyomorpha. (Tab. III. fig. 3.)

Chrysobothris ichthyomorpha, Thoms. Typi Bupr., Append., i. p. 42 (1879)’.

Hab. Mexico !, Orizaba, Playa Vicente (Sallé), Juquila (Hoge); Guatemaa, Sabo in

Vera Paz, Capetillo (Champion), Yzabal (Sallé); Nicaraaua, Chontales (Belt); Cosra

Rica (Sallé); Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

In examining a long series of this species I find two forms of the terminal segment

of the abdomen among the females (Tab. III. figg. 3a, 3b), that represented by fig. 3 a

being the commoner. Both forms are found in the same locality, and the difference

cannot be specific. ‘The male has the apex of the terminal segment sinuate, with a

semicircular emargination in the middle (Tab. III. fig. 3 ¢).

3. Chrysobothris thomsoni.

Chrysobothris collaris, Thoms. Typi Bupr. 1878, p. 76* (nec Deyr.).

Hab. Costa Rica (Van Patten); Panama, Bugaba 800 to 1500 feet, Volcan de

Chiriqui 2500 to 4000 feet, David, Tolé (Champion).—Cotomsia (Brit. Mus.); Vunn-

ZUELA, Caracas }.

Only distinguishable from the preceding species by the coppery-red posterior angles

of the thorax; but a large series from Bugaba shows no variation.

4, Chrysobothris belti. (Tab. III. fig. 4.)

Obscure cupreo-enea, nitida; thorace lateribus sinuatis, crebre punctulato; elytris purpureo-nigris, singulo

guttis quinque lete viridibus ornato.

Long. 63 lin.

Hab. Nicaracva, Chontales (Belt).

This species is very close to C. duplicata, Chevr. The thorax, however, is rather less

36 SERRICORNIA.

strongly angular at the sides, and there is a very slight impression on the basal lobe;

the punctuation is close and fine, with a tendency to become confluent transversely,

except near the anterior angles, where it is obliquely confluent. The elytra are not

very convex, and are without coste. Each elytron has a green spot at the base, and a

small one on the shoulder; a small round spot near the suture below the scutellum; a

lunate spot just before the middle, touching the margin (nearly divided into two); and

two other spots rather behind the middle. The margins of the abdominal segments,

and the apex of the terminal one, are nearly black; the latter with three acute teeth

(Tab. III. fig. 4a). The head is concave in front, the upper part of the forehead

projecting, the lower edge of the projection straight.

5. Chrysobothris capitata.

Chrysobothris capitata, Lap. & Gory, Mon. ii. p. 19, t. 4. f. 28°.

Chrysobothris designata, Thoms. Typi Bupr., Append., i. p. 43 (1879)’.

Hab. Mexico 2, Cordova, Juquila (Sallé); Guatemata, Cubilguitz, Tamahu, Cerro

Zunil 4000 to 5000 feet, Las Mercedes 3000 feet, Pantaleon 1700 feet, Torola 1000 feet

(Champion); Honpuras!; Nicaragua, Chontales (Belt, Junson); Costa Rica, Cache

(Rogers); Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

This species varies from 52-64 lin. in length. The colour is generally uniform

brassy; but the elytra are frequently darker, and sometimes quite deep purple. Some

examples have the thorax and abdomen less strongly sculptured than others. I cannot,

however, associate any of these differences with size, sex, or locality. The males, which

are rare, have the head golden-green; and the abdomen deeply emarginate at the apex

instead of tridentate as in the female.

I forwarded a female example to Prof. Westwood to compare with the type of

©. capitata in the Hopean Collection, and received the following note:—“ The only

appreciable difference is that the face in our specimen is bright golden-green, with a

small fulvous-red spot with sharp margin occupying nearly the apex of the facial

triangle between the inner margin of the top of the eyes.”

The posterior spot on the elytra is sometimes (but rarely) divided into two.

Specimens of this species were received from M. Sallé with the name C. designata,

Mhoms., attached ; and I believe this determination is correct, but M. Thomson ? gives

the apex of the abdomen as bidentate instead of tridentate.

6. Chrysobothris gemmata.

Chrysobothris gemmata, Lec. Proc. Acad. Phil. x. p. 67 (1858)’; Horn, Trans. Am. Ent. Soe. xiii.

p. 105, t. 6. fige. 178-182 *,

Hab. Norru America, Arizona ?,—Mexico, Sonora (Schott !).

I am unacquainted with this species.

CHRYSOBOTHRIS. 37

7. Chrysobothris astuta. (Tab. III. fig. 5.)

Tota eenea, nitidiuscula; thorace parallelo, ante apicem utrinque paullo angulato; elytris convexis, sat crebre

evidenter punctulatis, singulo guttis rotundatis viridibus (cupreo cinctis) quatuor ornato ; corpore subtus

ad latera dense flavo-griseo pubescente; abdominis segmento ultimo apice cyaneo, bispinoso.

Long. 53 lin.

Hab. Mexico,. Cordova (Sallé), Jalapa (Hoge).

This species greatly resembles C. megacephala, Lap. & Gory, from San Domingo ;

but is relatively longer, and has the thorax less angular at the sides anteriorly, &c.

The head is densely punctured and clothed with sandy pubescence, with a smooth

straight raised line between the eyes; the top is rather closely and strongly punctured,

with an impressed line on the vertex. The thorax is rather closely and very distinctly

punctured, and transversely strigose as is so commonly the case in this genus. Hach

elytron has a round coppery impression at the base, another on the disc rather before

the middle, and two others just behind the middle; these impressions are green in the

middle and encircled with coppery, and are deeply impressed ; there is also a slight

impression just above the humeral callus, but it is not coloured, and the sides are

rather strongly impressed below the shoulder. ‘Tarsi blue. The apex of the abdomen

is bidentate (Tab. III. fig. 5a), or with a slight projection in the middle in addition to

the lateral teeth (fig. 5 6).

8. Chrysobothris sallei. (Tab. IIT. fig. 6.)

nea ; elytris purpureo-nigris, guttis late aureo-viridibus (cupreo tinctis) ornatis.

Long. 43-5 lin.

Hab. Muxico, Cordova (Sailé); GuaTeMata, Chacoj and Cahabon in Vera Paz

(Champion) ; Nicaragua, Chontales (elt).

This species differs from the preceding in having the elytra dark purple, with the

spots rather larger and brighter. There is, moreover, a bright spot on the humeral

callus; and on the suture below the scutellum there is a small elongate spot which does

not appear in C. astuta. The lateral angles of the terminal segment of the abdomen

are very acute (Tab. III. fig. 6 a).

9. Chrysobothris pheebe.

Chrysobothris phebe, Thoms. Typi Bupr. p. 77 (1878)*.

Hab. Mexico},

Known to me only from description. It appears to be allied to C. frpntalis, Oliv.

10. Chrysobothris viridi-impressa.

Chrysobothris viridi-impressa, Lap. & Gory, Mon. ii. p. 27, t. 5. f. 39°.

Hab. Guatemata, Yzabal (Sallé) ; Nicaracua, Chontales (Janson); Panama (Boucard),

Taboga Island (J. J. Walker).—Cotomsial.

38 SERRICORNIA.

11. Chrysobothris nausicaa.

Chrysobothris nausicaa, Thoms. Typi Bupr., Append., 1. ps 45 (1879)’.

Hab. Mexico}, Orizaba (Sallé); Guaremata (Scherzer); Panama (Boucard).

The specimens which I identify with C. nausicaa measure only 8 millim. in length,

instead of 9 millim.as given by M. Thomson. This insect appears to me to be scarcely

distinct. from C. cayennensis (Gmel.), a species occurring in Venezuela and on the

Amazons.

12. Chrysobothris melazona.

Chrysobothris melazona, Chevr. Col. Mex. Cent. ii. fase. 5, no. 104 (1835) ’.

Chrysobothris higrofasciata, Lap. & Gory, Mon. ii. p. 21, t. 8. f. 32” (nec Lec. Trans. Am. Phil.

Soc. 2rid ser. xi. p. 240).

Hab. Mexico 12, Cordova, Orizaba, Puebla, Vera Cruz (Sad/é), Talapa (Hoge) ; Britisu

Honpuras, R. Hondo (Blancaneaux); Guatemaua, Coban, Lanquin, Rio Naranjo

450 feet (Champion).

This species varies from 34-54 lin. in length. One example from Orizaba is golden-

coppery ; another from Jalapa has the elytra blue.

13. Chrysobothris convexiuscula. (Tab. III. fig. 7.)

Lete viridis, nitida; elytris fasciis tribus sat latis eyaneo-nigris ornatis, fascia basali ad suturam interrupta ; —

abdominis segmento ultimo fere levi, cyaneo-nigro.

Long. 44 lin.

Hab. Nicaragua, Chontales (Belt).—Co tomsra (rit. Mus.).

This species differs from C. melazona in having the middle bands of the elytra united

at and somewhat extended on the suture; the posterior bands are also united at the

suture, and the suture itself narrowly edged with blue-black at the apex. The abdomen

has a series of blackish spots on each side, and the apical segment is entirely blue-black,

and much less punctured than in C. melazona; the apical margin of the terminal

segment is sinuous, with an acute tooth at each angle (Tab. III. fig. 7 a).

14. Chrysobothris juncta. (Tab. III. fig. 8.)

Elongata, sat convexa, azurea, crebre evidenter punctata; fronte lete aureo-viridi; elytris fasciis tribus sat

latis cyaneo-nigris, fascia basali ad suturam interrupta.

Long. 3} lin.

Hab. Mexico, El Cameron (Sallé), Jalapa (Hodge).

Although this species is somewhat intermediate in its appearance between C. melazona

and C. cupreipes, it is really, on account of its convexity and the straight sides to the

thorax, allied to C. analis, Lec. The head is flattened in front, and has a slight, short

frontal ridge, which is divided in the middle. The thorax is very convex, parallel at

the sides, rather closely and very distinctly punctured. The elytra have a deep fovea

CHRYSOBOTHRIS. 39

at the extreme base, and a slight shallow one between the first and second bands; the

punctures are not very close together on the disc, but are closer and stronger towards

the sides; the first fascia does not reach the margin nor the suture; and the second

and third fascie nearly touch the margin and suture, and are united by a fine line

running close to the latter (in one example the three bands are united bya line). The

underside is slaty blue-black; the apical segment is arcuately and broadly emarginate,

with the angles spiniform (Tab. ITI. fig. 8 a).

The example from Jalapa has the basal fascia reduced to a transverse spot.

15. Chrysobothris trisignata. (Tab. III. fig. 9.)

Hlongata, convexa, crebre punctata, aureo-viridis, splendens; thorace parallelo; singulo elytro macula ante

medium, fascia pone medium alteraque ante apicem, cyaneo-nigris; fronte corporeque subtus aureo-

cupreis.

Long. 5 lin.

flab. Mexico, Sierra de Mazamithl in Guanajuato (Sallé), Almolonga, Chilpancingo

in Guerrero (/ége).

This insect somewhat resembles C. melazona, but has the thorax parallel at the sides,

a character at once separating it from that species; the punctuation is, moreover,

closer, and stronger and more crowded at the sides of the elytra. The forehead has

a short, slightly prominent ridge on the vertex. The lateral margins of the thorax are

coppery. The elytra are without coste, but there is a slight longitudinal impression

at the suture posteriorly ; there is a deep fovea at the base, and there is a very shallow

one on the disc; the punctures near the suture are fine and separated, but towards

the sides and apex they become stronger and closer, so that at the margins the surface

is rather rugose. The apical segment of the abdomen of the male is broadly but very

slightly sinuate, with the angles very acute (Tab. III. fig. 9a); in the female it is bi-

sinuate (fig. 9 0). |

16. Chrysobothris socialis. (Tab. III. fig. 10.)

Aureo-viridis, minus nitida, confertissime punctata; singulo elytro macula ante medium, fascia pone medium

(medio interrupta) alteraque subapicali, cyaneo-nigris; fronte corporeque subtus zeneo-cupreis, confertim

punctatis.

Long. 6 lin.

Hab. Mexico, Ventanas in Durango 2000 feet (Forrer).

This species is very close to the preceding, but is distinguished by its surface being

somewhat dull, owing to the stronger and more dense punctuation. ‘The punctures on

the disc of the thorax frequently touch each other, whilst in C. tristgnata they are

somewhat separated. The forehead has scarcely any trace of the usual ridge. The

middle band of the elytra is interrupted in the centre, but this may be an individual

peculiarity, as there is only one specimen before me. The lateral angles of the terminal

segment of the abdomen are scarcely prominent (Tab. III. fig. 10 a).

40 SERRICORNIA.

17. Chrysobothris analis.

Chrysobothris analis, Lec. Trans. Amer. Phil. Soc. xi. p. 238 (1860)*; Horn, Trans. Amer. Ent.

Soc. xiii. p. 111 (1886) ”.

Chrysobothris austinii, Thoms. Typi Bupr. p. 78 (1878) °.

Hab. North America, Texas near the Rio Grande! ?.—Mexico?, Matamoros } 2,

Orizaba (Sallé), Yucatan; Guatema.a (Brit. Mus.). |

Three examples before me appear to be referable to this species. M. Thomson gives

“intento eneo-viridi-metallica” as the colour: two of the specimens are brownish-

eneous; the third, from Yucatan, has the elytra blue, and is also rather shorter in form

than the others.

18. Chrysobothris trochilus. (Tab. III. fig. 11.)

Nigro-purpurea, parum nitida; capitis vertice, thoracis margine antico, macula marginali alteraque basi, lete

viridibus; elytris subtiliter punctulatis, fovea basali impressa, macula humerali, fascia mediana (interne

dilatata) suturam haud attingente vittaque apicali prope marginem lete, aureo-viridibus, fortius punctatis.

Long. 33 lin.

Hab. Panama, Bugaba (Champion).—Sovutu America, Para (Brit. Mus.).

The head is closely punctured; the front of the face slightly impressed and tinted

with green. The thorax is broad, not very closely punctured, the punctures partially

connected by transverse striation, the punctures on the margin close and strong. The

scutellum is small, triangular, golden-green. ‘The elytra have only one round fovea at

the base; the punctuation is rather fine, the punctures well separated from each other,

and those on the green spots somewhat asperate. ‘The posterior surface of the femora,

the middle of the sterna, and the margins of the metathoracic episterna and of the

abdomen are golden-green. The prosternum is closely and coarsely punctured. The

abdomen is bluish-green, with slight violet reflections; the apical segment in the male

is deeply emarginate, the emargination as deep as wide, and rounded (Tab, III.

fig. 11 a).

19. Chrysobothris guatemalensis. (Tab. III. fig. 12.)

Chrysobothris guatemalensis, Thoms. Typi Bupr. p. 80 (1878)’.

Hab. Mexico, Yucatan (coll. Laferté, in Brit. Mus.), Totosinapan, Orizaba (Salle),

Vera Cruz, Jalapa, Almolonga (Hége); GuatemaLa! (Sallé), San Gerdnimo (Champion).

In a considerable series of this species I have only seen two males, one from Mexico

and the other from Guatemala. ‘They differ from the females in having the front of

the head, the greater part of the antenne, the prosternum, part of the mesosternum

and coxe, the anterior surface of the front and intermediate femora and tibie, the

anterior surface of the posterior tibiee, and the tarsi, golden-green. The apical segment

of the abdomen is semicircularly emarginate in the male (Tab. III. fig. 12 a), slightly

tridentate in the female (fig. 12 6).

CHRYSOBOTHRIS. 41

20. Chrysobothris foveata.

Lata, depressa, nitida, nea; thorace transverso, postice angustato, medio profunde sat late impresso, utrinque

foveis tribus impressis ; elytris subtiliter punctulatis, marginibus crebre sat rugoso-punctatis, singulo basi

bifoveato, ante medium fovea rotundata sat magna, altera post medium prope marginem impressis, postice

prope suturam costa sat elevata; corpore subtus viridi-sneo, hic et illic cupreo tincto, segmento ultimo

apice bisinuato; tarsis cyaneis.

Long. 7 lin.

Hab. Mexico, Zacatecas (Brit. Mus.).

This species somewhat resembles C. guatemalensis, but is relatively broader and more

shining. In C. guatemalensis there is on the forehead a finely punctured transverse

spot bounded below by a smooth elevated line; in C. foveata this spot is less distinct,

and is bounded above by a smooth line. In C. foveata there is a very short elevated

line on the vertex that is not present in C. guatemalensis ; in this respect it approaches

C. femorata. The punctuation on the vertex is closer than in C. guatemalensis, but not

so close as in C. femorata. The thorax is not very closely punctured on the disc, but

closely and coarsely so on the sides; the median impression is deep, broadest behind,

and on each side of it are two deep fovew, with a third less distinct one near the

anterior angle. The surface of the elytra is very uneven; the basal fovee are well

marked, the inner one coppery; the impression on the disc is rather large and round,

punctured but not rugose, partly coppery ; the posterior impression is smaller and more

lateral; the costa near the suture behind the middle is sharply defined, slightly sinuous ;

the space between the costa and the suture nearly smooth ; outside the costa the surface

is longitudinally impressed, and the margins below the shoulder are also impressed ; and

parallel with the apical margin is a ridge, which separates the comparatively smooth

dorsal surface from the lateral rugose margin.

21. Chrysobothris exesa.

Chrysobothris exesa, Lec. Proc. Acad. Phil. x. p. 68 (1858)'; Horn, Trans. Am. Ent. Soe. xiii.

p. 95, t. 4. figg. 125-1292.

Hab. Norra America, Colorado River+, Arizona 2—Mexico, Sonora (Schott '),

Northern Sonora (Morrison).

22. Chrysobothris chactas.

Chrysobothris chactas, Lap. & Gory, Mon. ii. p. 47, t. 8. f. 63 -

Chrysobothris inea, Thoms. Typi Bupr. p. 80 (1878)?.

Chrysobothris inca, Thoms. Typi Bupr., Append., i. p. 48 (1879)

Hab. Mexico 12%, Mirador, Puebla (Sallé), Jalapa ({6ge).

This species is somewhat variable, both in size and form, and some specimens are

difficult to separate from the North-American C. femorata, Oliv.; it is, however,

generally rather shorter and broader than that insect. No doubt the specimens of

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1887. G

42 SERRICORNIA.

C. femorata stated by Dr. Horn (Trans. Am. Ent. Soc. xi. p. 78) to come from Mexico

are referable to this species.

It would appear that C. inca? is only C. tinea? accidentally redescribed; the de-

scriptions are nearly identical. |

In the absence of all evidence to the contrary Iam compelled to regard C. inea as

synonymous with C. chactas, Lap. & Gory.

23. Chrysobothris inequalis. (Tab. III. fig. 13.)

Oblongo-ovata, depressa, opaca, cupreo-eenea, subtus cuprea ; thorace late transverso, brevi, creberrime punctato,

lineis duabus discoidalibus parum elevatis nitidis, parce punctatis; elytris confertim rugoso-punctatis,

lineis elevatis nitidis nigricantibus ornatis; prosterno medio leevi.

3 fronte dense pilosa; prosterno eneo; abdominis segmento ultimo late emarginato.

@ fronte vix pilosa; abdominis segmento ultimo anguste emarginato, utrinque dentato.

Long. 5-6 lin.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn), Suapam (Sal/é).

This species is certainly allied to C. femorata, but is shorter, broader, and more

depressed, and has the thorax much more transverse; and the smooth prosternum at

once separates it. ‘The head has on the vertex a smooth ridge; the smooth frontal

ridge is divided into two in the female, in the male it is completely hidden by the

peculiarly dense fine sandy-grey pile. The thorax is impressed on each side and densely

and roughly punctured, and has a small irregular raised spot at the base on each side

of the smooth discoidal lines; the basal lobe is slightly truncate. The elytra have the

ridge next to the suture broad, flat, and smooth at the base, but becoming narrow and

costiform posteriorly; the second costa is rather irregular, almost completely interrupted

by a large obliquely quadrate impression before the middle; the third costa only appears

as an outer boundary of this impression ; between the first and second coste behind the

middle there are two quadrangular shining patches, which have some strong punctures

scattered over them; there are also two or three smooth transverse lines dividing the

surface into irregular quadrate spaces. The apical segment of the abdomen in the male

is emarginate, but not so deeply as in C. guatemalensis; in the female it is slightly

notched (Tab. III. fig. 13 @).

24. Chrysobothris acutipennis. (Tab. III. fig. 14.)

Chrysobothris acutipennis, Chevr. Col. Mex. Cent. i. fasc. 8, no. 190 (1835)*; Horn, Trans. Am.

Ent. Soc. xiii. p. 107, t. 6. figg. 188-192 °.

Chrysobothris cupreo-enea, Lap. & Gory, Mon. ii. p. 39, t. 7. f. 55°.

Chrysobothris acuminata, Lec. Trans. Am. Phil. Soc. 2nd ser. xi. p. 237 (1860) *.

Chrysobothris cupreo-signata, Thoms. Typi Bupr. p. 80 (1878) °.

Hab. Nortu America, Texas”, Arizona ?.—Mextico?>, Tuspan!, ‘Tamaulipas to Mata-

moros *, Izucar, Orizaba (Sallé), Cerro de Plumas (//ége); Brivish Honpuras (Blanca-

neaurz) ; GUATEMALA, Chacoj in Vera Paz, Torola 1000 feet, Pantaleon 1700 feet, Volcan

CHRYSOBOTHRIS. 43

de Atitlan 2500 to 3500 feet (Champion) ; Nicaraava, Chontales (Belt); Panama, Bugaba,

It is somewhat remarkable that none of the authors who have described this insect

mention the very long and acuminate scutellum, a character almost separating it gene-

rically from Chrysobothris. ‘The only species known to me that at all approaches it in

this respect is C. antigua, Chevr. The abdominal segments are generally bordered with

dark purple-blue, which also is not mentioned by any of the authors. The apical

segment of the abdomen of the male is sinuate, with a deep emargination in the middle

(Tab. III. fig. 14a); in the female it is bidentate, with a carina in the middle (fig. 14 0).

25. Chrysobothris insidiosa. (Tab. III. fig. 15.)

Elongata, snea, nitida, abdomine hic et illic purpureo tincto ; thorace basi paullo angustato, utrinque foveolis

tribus impresso, sat crebre (discum subtiliter, lateras fortiter) punctato ; elytris tenue punctatis, singulis

quadri-foveolatis (2 basalibus, secunda ante medium inaurata, tertia pone medium), costa juxta suturam

postice bene elevata, ad apicem in spinam acutam producta, ceteris interrupta.

Long. 7 lin.

Hab. Panama, Bugaba, Tolé (Champion).

This species is very near C. acutipennis, and resembles it in general shape, colour,

and in the form of the scutellum. ‘The head is densely punctured. The thorax is very

delicately punctured on the disc, but deeply so at the sides, and the punctures are

distinctly separated from each other, except behind the posterior foveze, where they are

transversely confluent; there are two shallow oblique impressions near the anterior

angles, and a deep round fovea near the base. The elytra are rather delicately (but

distinctly) punctured, except at the extreme margin, where the punctuation is stronger

and very close; the punctures on the surface are distinctly separated from each other ;

there is a deep fovea at the base, a small fovea on the shoulder, a large round one on

the disc before the middle, and another behind the middle. The apical segment of the

abdomen is broadly truncate at the apex, the angles acute, with a sharp costa in the

middle for its entire length (Tab. III. fig. 15 a).

26. Chrysobothris quadriplagiata. (Tab. III. fig. 16.)

Sat lata, depressa, cupreo-enea, subtus cuprea, creberrime punctata; thorace antice latiore, disco minus crebre

punctato, lateribus rugoso-punctatis, gutta parva elevata levi prope angulos anticos ; elytris confertim

rugoso-punctatis, singulis fovea basi sat profunde impressa, plaga magna impressa sicut divisa, altera

obliqua pone medium, ambabus margine levi nigro cinctis, ornatis ; prosterno levi; abdominis segmento

ultimo linea longitudinali parum elevata, apicem perparum sinuato, angulis acutis, prominulis.

Long. 7 lin.

Hab. Mexico, Guanajuato (Saldé).

This is a link between the species allied to C. femorata and those allied to C. erea.

‘The head is densely punctured, and has some small irregular smooth marks on the face ;

the vertex has a well-marked smooth, divided ridge. The thorax has an indistinct

44 SERRICORNIA.

smooth line in the middle; at the base there is on each side a small smooth spot.

Besides the deep impression at the base of the elytra, there is a much less marked one

on the humeral callus; near the suture there is a fine costa, but it does not extend to

the base, and diverges slightly from the suture near the apex, and then at the apex

turns sharply towards the sutural angle; there are two indistinct longitudinal smooth

lines between the discoidal impressions, and the subapical impression has two short

lines emitted from its posterior margin. The apical segment of the abdomen is biden-

tate, coarsely punctured, with a smooth median line (Tab. III. fig. 16 a).

27. Chrysobothris erea.

Chrysobothris @rea, Chevr. Col. Mex. Cent. i. fase. 3, no. 33 (1834)'; Lap. & Gory, Mon. ii. p. 42,

t. 8. f. 59° (nec Horn, Trans. Am. Ent. Soc. xiii. p. 104, t. 6. figg. 173-177).

Hab. Mexico 1 2,

The type of this species is now in the British Museum, and is unfortunately still

unique. ‘The following and other species have been confounded together and mistaken

for it. The species referred to under this name by Dr. Horn (2. c.) must, I think, be the

one described below as C. costifrons.

28. Chrysobothris simplex. (Tab. III. fig. 17.)

/Eneo-cuprea, subtus cuprea, sat depressa, creberrime fortiter punctata ; capite rugoso, vertice linea elevata ~

nitida ; thorace antice latiore, disco minus crebre punctato, lateribus rugoso-punctatis; elytris confertim

sat fortiter punctatis, basi fovea parva cuprea impressa, disco ante medium macula transversa cuprea,

altera multo majore obliqua post medium, ornato; sterno levi.

d abdominis segmento ultimo profunde semicirculari emarginato; © sinuato.

Long. 73 lin.

Hab. Mexico, Las Vigas (Hége).

This species is very near C. wrea, but has the thorax and elytra shorter, the latter

less gradually narrowed towards the apex, and widest rather behind the middle. The

fovea at the base of the elytra is smaller and more punctiform, and not extended on to

the humeral callus, although there is a very slight impression on the callus; the

impression on the disc is much smaller, not more than one third the width of the

elytron, coppery on the sutural end, shallow on the outer side; the posterior impression

is large; the sutural costa is well marked, but does not extend to the base; two other

cost may be traced behind the posterior impression. The apical segment of the

abdomen is not tridentate as in C. wrea, but emarginate in the male (‘lab. III. fig. 17 a),

and notched in the female (fig. 17 4). |

29. Chrysobothris stellifera. (Tab. III. fig. 18.)

Elongata, elliptica, parum convexa, crebre rugulosa et punctata; capite vertice linea elevata levi; thorace

transverso (lateribus medio fere parallelis), antice posticeque paullo angustato, disco subtiliter punctato,

punctis nonnullis majoribus intersparsis, lateribus rugosis ; elytris postice gradatim angustatis, ad apicem

paullo serratis, singulo basi puncto aurato bene impressa, ante medium fovea rotundata aurata, post

CHRYSOBOTHRIS. 45

medium gutta parva inconspicua prope marginem, costa suturali (basi obliterata) minus regulari ; prosterno

subtilissime punctulato, fere levi.

$ abdominis segmento ultimo apice profunde emarginato; @ sinuato, angulis prominulis, dentiformibus.

Long. 8-9 lin.

Hab. Mexico, Oaxaca (Sallé).

Aliied to C. @rea, but with more parallel thorax. The surface of the elytra is

rugulose, with punctuation intermixed; the small basal brassy fovea and the fovee on

the disc stand out very distinctly from the dark surrounding surface. The apex of the

abdomen in the female (Tab. III. fig. 18 @) is very similar to that of the male, but less

deeply emarginate.

30. Chrysobothris costifrons. (Tab. III. fig. 19.)

Chrysobothris costifrons, Chevr. in litt.

Chrysobothris erea, Horn, Trans. Am. Ent. Soc. xiii. p. 104, t. 6. figg. 173-177 ' (nec Chevr.).

Preecedenti affinis, differt tamen elytrorum macula basali majore, macula discoidali minus splendente, majore,

plagaque post medium obliqua distincta.

Long. 8-10 lin.

Hab. Norvn America, Arizona (Morrison ').—Mexico, Northern Sonora (Morrison),

Orizaba (Sal/é), Oaxaca 1.

This insect might perhaps by some persons be regarded as a local form of C. stellifera ;

it appears to me, however, to merit the rank of a species. ‘The basal fovea of the elytra

is larger, and there is a more distinct impression on the shoulder. The surface of the

elytra is moreover differently sculptured: in C. stellifera there are very numerous small

raised black rugee with fine punctuation between; in C. costifrons the finely punctured

surface prevails, the irregular raised ruge being much fewer in number and more con-

fined to the sides. The spot before the middle of the elytra is much larger and more

quadrangular; the surface immediately behind it is finely punctured, and followed by

an elongate very shallow oblique impression. extending nearly from the margin to the

sutural costa; behind this impression there isa very irregular slightly raised black border,

emitting posteriorly two short ridges towards the margin. The apex of the abdomen in

the male (Tab. III. fig. 19 a) is more emarginate than in the female (fig. 19 6).

31. Chrysobothris distincta.

Chrysobothris distincta, Lap. & Gory, Mon. iv. p. 176, t. 30. f. 171".

Hab. Mextco1, Puebla and Matamoros Izucar (Sallé, Hoge), Yautepec, Cuernavaca,

Mexico city, Almolonga, Oaxaca, Cerro de Plumas (Hége); Guatemata, Rio Paz

(Sallé).

A male specimen from Guatemala has the head and antenne bright green; but this

coloration appears to be a mere individual variation. It is not a sexual character

as is sometimes the case, both sexes being before me.

46 SERRICORNIA.

82. Chrysobothris octocola.

Chrysobothris octocola, Lec. Proc. Acad. Phil. x. p. 67 (1858)*; Horn, Trans. Am. Ent. Soc. xiii.

p. 73, t. 2. figg. 6-10’.

Hab. Norta America, Colorado River 1, Texas 1.—Mexico, Sonora (Schott !), Alamos

(Buchan-Hepburn), San Luis Potosi (Dr. Palmer), Tamaulipas *.

If I have correctly determined this species, it chiefly differs from C. multistigmosa in

being generally smaller, less parailel, and with shorter thorax. ‘The apex of the

abdomen appears to be slightly notched in the middle, and differs only slightly from

the female of C. multistigmosa; the male is, however, easily distinguished by the

apical segment being more impressed and punctured in the middle, with the apical |

emargination rather deeper and narrower, its edge appearing blunt and not sharply

defined. Our two examples have the elytra obscure purple.

83. Chrysobothris modesta.

Precedenti affinis et simillima; differt tamen clypeo acute inciso; fusco-znea, confertim punctata, elytris

maculis cuprascentibus ornatis.

1_61 ]j

Long. 53-65 lin.

Hab. Mexico, Huetamo and Tacambaro in Michoacan (f/ége).

As one of the characters by which C’ octocola may be separated from C. multistigmosa,

Dr. Horn (/. ¢.) mentions that the emargination of the clypeus is “ rounded at the

bottom.” This applies to the male example (with green head) from Alamos, and to

the female from San Luis Potosi recorded above. Six specimens from Michoacan,

which I at first believed to be C. octocola, have the clypeus triangularly incised as in

C. multistigmosa. 'They cannot, however, be regarded as C. multistigmosa as they have

the short thorax, less acuminate elytra, and sexual characters of C. octocola; I am

compelled, therefore, to separate them as a distinct species. ‘The males do not present

any difference in the coloration of the head.

34. Chrysobothris multistigmosa.

Colobogaster (Chrysobothris) multistigmosa, Mann. Bull. Mose. viii. p. 82 (1837)'.

Chrysobothris atabalipa, Lap. & Gory, Mon. ii. p. 48, t. 8. f. 60 (1841)*; Horn, Trans. Am. Ent.

Soe. xii. p. 72, t. 2. figg. 1-5 °*.

Chrysobothris basalis, Lec. Proc. Acad. Phil. x. p. 68 (1858) *.

Hab. Norra America, Laredo to Ringgold Barracks 4, Texas °.—Mexico 23, Ventanas

2000 feet (Lorrer), Puebla, Vera Cruz, Matamoros Izucar (Sallé, Hoge), Yolos, Cordova —

(Sallé), Oaxaca}, Jalapa, Atlisco, Chilpancingo, Almolonga (Hége), Tehuantepec

(Sumichrast); GuateMaLa, Torola 1000 feet (Champion); Satvapor, Santa Cruz

(Sallé).

I see no reason for doubting that this is the species described under the name

CHRYSOBOTHRIS. AT

C. multistigmosa. It is common at Oaxaca; and the elytra being described as parallel,

or nearly so, at once points to this insect.

The male appears to be dimorphic: numerous examples from various parts of

Mexico and one from Salvador have the antenne broad, compressed, and coppery, with

the third joint at its apex as broad as its length; other specimens from the same

localities have the antennee comparatively narrow, with the third joint elongate, scarcely

widened at its apex.

I have not seen an example of the form with broad antenne from the United States ;

and as Dr. Horn (J. ¢.) does not mention it, I presume it does not occur there.

35. Chrysobothris lateralis. (Tab. ITI. fig. 20.)

Elongata, parallela, obscure eneo-cuprea ; capite crebre punctato, parce pallide piloso, guttis duabus parvis

nitidis parum elevatis notato; thorace transverso, quam elytra paullo angustiore, basi parum angustato,

lateribus rufo-cupreis ; singulo elytro basi foveola parva, secunda ad medium, duabus post medium vix

impressis lete, rufo-cupreis.

Long. 3 lin.

Hab. Mexico, Northern Sonora (Morrison).

The head is somewhat flattened in front, and closely punctured; with two small

smooth spots below the middle, and another on the upper part of the face, from which

proceed two short oblique, often inconspicuous, lines. The thorax is moderately finely

punctured, the punctures separated from each other, on the sides as well as on the disc.

The elytra have a slightly asperate punctuation on the base and margins, but fine on the

disc, the punctures on the disc distinctly separated from each other; the first costa is

only distinct in the apical third, and curved away from the suture before the apex; and

there is a very short costa below the posterior red spots, and a short sublateral one.

Prosternum densely punctured, clothed with greyish-white pile, which is more dense in

the male than in the female. Abdomen with whitish pubescence at the sides, finely

punctured in the middle, the apical margins of the segments smooth and steel-blue ;

the apical segment in the male slightly emarginate (Tab. III. fig. 20 a), in the female

slightly notched (fig. 20 0).

36. Chrysobothris debilis. _

Chrysobothris debilis, Lec. Trans. Am. Phil. Soc. 2nd ser. xi. p. 235'; Horn, Trans. Am. Ent. Soc.

xii. p. 75, t. 2. figg. 15-19%.

Hab. Nort America, Ohio!2, Western States!, Texas’, Arizona?, Southern

California 2,—Mzexico, Northern Sonora (Morrison).

The specimens received from the late Mr. Morrison with this name differ from

C. lateralis in having the thorax a little broader, more rounded at the sides, more

pubescent, and more coarsely and (consequently) closely punctured. The elytra are

more uniformly and more strongly punctured, and there is only one impression behind

48 SERRICORNIA.

the middle. The general colour is more eneous, and the spots on the elytra are nearly

concolorous.

AMORPHOSOMA.

Amorphosoma, Laporte, Silb. Rev. Ent. iii. p. 166 (1835).

_ This genus as at present constituted comprises some half-dozen species divided equally

between tropical America and India and the Malay Archipelago. The American species,

however, differ from their Old-World allies in having a costa on the disc of the elytra.

1. Amorphosoma penicillatum. (Tab. IV. fig. 1.)

Buprestis pennicillata, Klug, Ent. Bras. Cent. p. 11, t. 40. f. 12; Nov. Act. Leop.-Carol. Nat. Cur.

xii. p. 429 (1825)!.

Amorphosoma pennicillatum, Lap. & Gory, Mon. ii. p. 2, t. 1. f. 1”.

Hab. Nicaracua, Chontales (Belt); Panama, Volcan de Chiriqui 2000 to 3000 feet

(Champion).—Sovutu AMeERicA, Brazil ! ?.

STENOGASTER.

Stenogaster, Solier, Ann. Soc. Ent. Fr. i. p. 335 (1838).

The type of this Tropical-American genus is S. dinearis (Linn.) from Cayenne.

Stenogaster is remarkable from the fact that only the fourth joint of the tarsi is

furnished with a lamina.

1. Stenogaster costifer. (Tab. IV. fig. 2.)

Elongatus, depressus, supra niger, vix enescens, subtus eneus; thorace fossulato, griseo-piloso ; elytris griseo-

pilosis, fascia post medium, altera ante apicem nigris, costa ad basin fufeata.

Long. 53-7 lin.

Hab. Mexico, Izucar (Sallé); GuatemMaa, San Gerénimo (Champion) ; NICARAGUA, —

Chontales (Belt).

This species resembles S. linearis in general form, but is nearly black above. It is

at once distinguished from its allies by the costa of the elytra dividing into two branches

near the base, one branch going to the shoulder, the other towards the scutellum. ‘The

punctures on the elytra are rather large, and have a tendency to form lines. The fine

greyish pubescence gives a mottled appearance, as in some other species of the genus ;

but there is a well-marked, rather broad, black band a little behind the middle, and

another (less distinct) one near the apex. ‘The prosternum is deeply longitudinally im-

pressed, the impression closely punctured. Each elytron has a small tooth at the apex.

2. Stenogaster fossulatus.

Stenogaster fossulatus, Chevr. Col. Mex. Cent. ii. fase. 8, no. 192 (1885)'.

Hab. Mexico, Tuspan’.

This and the following species are unknown to me.

CYPHOTHORAX.—OMOCHYSEUS. 49

CYPHOTHORAX.

Cyphothorax, C. O. Waterhouse, Trans. Ent. Soc. Lond. 1887, p. 180.

I have proposed this genus for Stenogaster palleolatus, Chevr. It differs from

Stenogaster in having the second and third (as well as the fourth) joints of the tarsi

furnished with a slight pad; the elytra have no costz.

1. Cyphothorax palleolatus. (ab. IV. fig. 4.)

Stenogaster palleolatus, Chevr. Col. Mex. Cent. ii. no. 134".

Stenogaster gibber, Gory, Mon. iv. p. 205, t. 34. f. 196”.

Hab. Mexico, Orizaba!.—Braziu ?.

AUTARCONTES.

Autarcontes, C. O. Waterhouse, Trans. Ent. Soc. Lond. 1887, p. 180.

I include in this genus Agrilus mucoreus, Klug, and some allied species. These

have the thorax broad and transverse, with an angular projection at the sides just

before the base ; and the elytra somewhat parallel for two thirds of their length and

then obliquely narrowed to the apex, the apex of each being slightly sinuate. Each

elytron has a single obtuse costa extending beyond the middle, the dorsal space between

them being more or less flat.

The basal joint of the posterior tarsi in A. mucoreus is short, but in A. abdominalis,

which I cannot dissociate from it, the basal joint is nearly as long as in Agrilus.

1. Autarcontes abdominalis. (Tab. IV. fig. 6.)

Niger ; elytris inter costas eenescentibus immaculatis, fascia angusta ante apicem (e pube grisea) ornatis ; corpore

subtus cyaneo, maculis coccineis utrinque ornato.

Long. 8 lin.

Hab. Nicaracua, Chontales (Belt).

The thorax in this species has the angular projection at the sides very acute; there

are three impressions on the disc, the anterior one being small. The spot of red

pubescence on the basal segment of the abdomen is large and transverse; those on the

following three segments are a little smaller, each with an ovate smooth space in the

pubescent spot.

OMOCHYSEUS.

Omochyseus, C. O. Waterhouse, Trans. Ent. Soc. Lond. 1887, p. 182.

This genus is closely allied to Agrilus; I have included in it two species, one from

Brazil and one from Mexico.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, February 1889. H

50 . SERRICORNIA.

1. Omochyseus terminalis, (Tab. IV. fig. 5.)

Omochyseus terminalis, C. O. Waterh. Trans. Ent. Soc. Lond. 1887, p. 183°.

Niger, vix purpurascens ; pectore abdomineque cyaneis, pedibus cupreis; capite profunde excavato ; thorace

transverso, crebre sat fortiter punctato, disco excavato, antice guttis duabus elevatis punctatis instructo :

elytris sicut griseo-marmoratis, hic et illic eneo-tinctis, confertim punctulatis, guttis numerosis irregu-

laribus parum elevatis nitidis, fascia post medium nigro-velutina, apice inclinato, cyanescente, transverso,

trapezoidali. .

Long. 6 lin.

Hab. Mexico, Oaxaca! (Sallé).

This insect chiefly differs from the Brazilian O. humeralis in having the apex of the

elytra rather more expanded.

ENGYAULUS.

General characters of Agrilus. Sockets of the antennze round, and separated from

each other by a very narrow space (Tab. IV. fig. 9 6). Front of the head (when viewed

from the side) very prominent and regularly arched (fig. 9a). Basal joint of the

posterior tarsi short.

I propose this generic name to include Agrilus pulchellus, Bland, and a closely allied

new species.

1. Engyaulus pulchellus. (Tab. IV. figg. 9, 9 a, 0.)

Agrilus pulchellus, Bland, Proc. Ent. Soc. Phil. iv. p. 382 (1865) *.

Hab. Norta America, Colorado (J. Ridings!). — Mexico, Northern Sonora

(Morrison).

2. Engyaulus rubrovittatus.

Elongatus, parallelus, rugosus, eneus, subtus pube brevi griseo-alba dense vestitus; capite longitudinaliter .

fortiter impresso; thorace parallelo, convexo, medio leviter canaliculato, angulis posticis promimniiss :

elytrorum sutura apiceque viridibus, lateribus cupreo-rubris.

Long. 9-11 lin.

Hab. MExtco, Guanajuato (Sallé).

Var. elytrorum sutura apiceque violaceis.

Hab. Muxico, Oaxaca (Brit. Mus.).

This species resembles E. pulchellus in general appearance, but differs in many

points. The head and thorax are rugulose and punctured; the ruge on the raised

parts of the forehead are longitudinal but wavy. The ruge on the thorax are trans-

verse, and more regular than in E. pulchellus. The thorax is more evenly convex,

with scarcely any trace of lateral impression; the sides are nearly rectilinear; the

discoidal impression is not deep, but distinct, and is less interrupted in the middle. The

elytra are closely and rather coarsely granular; the green (or violet) colour of the

ENGYAULUS.— PARADOMORPHUS. 51

suture extends also over the apex. The underside of the body is closely punctured,

and almost entirely clothed with whitish pubescence; the pubescence, however, is

less dense in the middle of the abdomen. The episterna and sides of the abdomen are

. densely and very finely punctured. The abdominal segments have their posterior margin

smooth. In £. pulchellus the middle of the abdomen is bare, and there isa triangular

bare spot at the sides of the basal segments.

PARADOMORPHUS.

Paradomorphus, C. O. Waterhouse, Trans. Ent. Soc. Lond. 1887, p: 183.

I include in this genus certain species hitherto placed in Agrilus, but which differ in

having the basal joint of the posterior tarsi comparatively short.

This character is scarcely of generic importance, as intermediate forms exist; the

separation from Agrilus, however, of the species with a short basal joint, to the hind

tarsi will, I hope, facilitate their determination.

1. Paradomorphus obscureguttatus. (Tab. IV. fig. 7.)

Olivaceo-zeneus, parum nitidus; capite antice rufo-cupreo; thorace viridi-eneo, convexo, undatim ruguloso,

medio leviter canaliculato; elytris asperatis, maculis quatuor obscuris sordide flavis ornatis, regione

suturali enescente. |

Long. 33-34 lin.

Hab. Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui 2000 to 3000 feet, David

(Champion).

The head is finely and closely punctured ; the upper part of the forehead is slightly

impressed, and has a fine impressed median line which runs down nearly to the middle

of the face. The thorax is very convex; the lateral impressions are not very well

marked when viewed from above ; the median channel is shallow and not conspicuous,

slightly interrupted at the middle, and not extended to the front margin ; the posterior

ridge is very short, somewhat oblique. The elytra have the subcosta only slightly

marked ; each elytron has an inconspicuous dirty yellow spot before the middle, and

another considerably behind the middle. The prosternal process is densely and finely

rugose, and sparsely pubescent. The abdomen is finely and closely punctured; but at

the base the punctuation is stronger, especially at the sides. ‘The lateral carina of the

basal segment has scarcely any trace of sinuosity in the middle.

2. Paradomorphus vermiculatus. (Tab. IV. fig. 8.)

Brunneo-zneus, parum nitidus, elytris obscure purpurascentibus vel sneis; capite rugoso, vertice ruguloso ;

thorace antice bene convexo, creberrime sat fortiter vermiculoso-ruguloso ; elytris creberrime asperatis,

apice serrulato.

Long. 4 lin.

Hab. Mexico, Jalapa (fége).

The whole of the insect is sparingly clothed with very short pale grey pubescence,

52 SERRICORNIA.

which, as is commonly the case, is a little more conspicuous at the sides of the thorax,

and is thinner at the sides of the elytra. ‘The head has a longitudinal impressed line

in front; all the upper part is covered with tortuous ruge. The thorax is covered

with closely placed ruge, which are much curved at the front part; at the posterior

angles there is an indistinct ridge, nearly straight, but very slightly directed inwards.

The elytra are somewhat coarsely asperate; the suture behind the middle isa little

raised, and at this part the surface on each side of it is shining and nearly smooth.

The prosternum is densely and finely punctured. The abdomen is moderately closely

and finely punctured. ‘The lateral carina of the basal segment is distinctly angulated

rather behind the middle.

8. Paradomorphus ruginosus.

Convexus, crassus, sat nitidus, supra cupreus, subtus brunneo-sneus; capite rugoso, antice medio leviter

impresso; antennis brevibus, nigris; thorace rotundato-convexo, fortiter ruginoso, lateribus medio

foveola impressis ; elytris subdepressis, basi asperatis, postice punctatis, maculis quatuor pallide flavis

ornatis, ad apicem parum attenuatis, vix serrulatis.

Long. 33 lin.

Hab. Mexico, Ventanas in Durango (L/6ge).

This is a well-marked species, owing to its very convex thorax, which is covered

with irregular much-raised ruge, the intervals shining and very delicately punctured.

The elytra are impressed at the suture—the impression twice interrupted by obtuse,

transverse, slightly-raised ridges—between the two conspicuous spots, one of which is

placed at the middle, the other at one quarter from the apex. The prosternal chin-

piece* is gently emarginate. ‘The prosternum is strongly and rather closely punctured ;

the intercoxal process is rather flat, parallel, truncate posteriorly. The metasternum is

coarsely punctured, with an elongate central puncture. The abdomen is rather strongly

and somewhat closely punctured, with a conspicuous yellowish-white spot at the side

of the second segment. ‘he lateral carina of the basal segment has a small, nearly

semicircular emargination in the middle, filled above with yellow pubescence. ‘The

whole of the underside is sparsely clothed with short pale pubescence.

4, Paradomorphus collaris.

Convexus, crassus, sat nitidus, purpurascenti-cupreus ; capite rugoso, medio longitudinaliter impresso; thorace

rotundato-convexo, fortiter ruginoso, pube aureo-flava dense vestito (margine antico calvo), basi trans-

versim impressa; elytris fortiter crebre rugulosis, maculis aureo-flavis ornatis, ad apicem arcuatim

attenuatis. .

2 1:

Long. 32 lin.

Hab. Mzxico (Sallé).

The head has a little yellow pubescence just above the clypeus. The elytra have no

subcosta, but they are impressed near the apex; each has a small yellow spot at the

suture not far from the base, a transverse spot at the middle, and a somewhat broad

* See p. 58.

PARADOMORPHUS. 03

oblique spot extending from the suture to the margin. The prosternal chin-piece is

gently and widely emarginate. The prosternum is closely and finely rugose, slightly

pubescent in the middle; the intercoxal process is very slightly convex, truncate at the

apex. The metasternum is closely punctured, with an elongate central puncture

behind. The abdomen is rather finely punctured at the apex, rugose at the base; all

the middle part of the basal segment clothed with yellowish velvety pile. The sides of

the second segment are clothed with yellow pile, as are also the posterior angle of the

metasternum and the whole of the posterior coxe. The lateral carina of the basal

segment of the abdomen is deeply angularly excised about the middle, with a yellow

spot above.

5. Paradomorphus emarginatus.

Elongatus, angustus, nitidus; capite cyaneo-viride, longitudinaliter suleato; thorace cyaneo, obsolete trans-

versim striolato, tenue haud crebre punctato; elytris purpureis, crebre subasperato-punctatis, postice

attenuatis, apice profunde emarginato, vitta suturali maculaque ante medium pallide flavis.

Long. 3 lin.

Hab. Mexico, Acapulco in Guerrero (Hége).

The head is moderately closely and finely punctured ; the longitudinal channel is

rather deep at the top of the face, shallow in front ; the face is rather flat, with a very

slight ovate swelling on each side of the median channel. The thorax is somewhat

narrowed at the base ; shining, the striation not very distinct; transversely impressed

at the base, with a shallow round fovea in the middle of the posterior margin; the

posterior ridge is distinct, curved outwards and downwards to meet the margin beyond

the middle. The elytra have the subcosta very distinct, gradually approaching the

suture posteriorly; each elytron has a small pale yellow spot at about one third from

the base, and a narrow sutural stripe extending from rather behind the middle to the

apex; the apex itself is very deeply cut out, leaving the sutural angle acutely denti-

form. The prosternal chin-piece is arcuate, nearly straight in the middle. The pro-

sternum is strongly punctured, sparsely pubescent ; the intercoxal process is subparallel,

with the lateral margins thickened, raised, and smooth, the apex truncate, with the

angles slightly prominent. The metasternum has a small elongate central puncture,

with an elongate white spot at some distance from the side. The abdomen is finely

and not very closely punctured ; the basal segment with a white stripe at some distance

from the side; the second and third segments each with a small white spot at the

side.

6. Paradomorphus elegantulus.

Cupreo-seneus, parum nitidus, capitis vertice thoraceque purpureis, elytris nigro-seneis flavo-maculatis ; capite

antice crebre rugoso, vertice strigoso; thorace transversim strioloso, postice transversim leviter impresso,

ad angulos anticos macula alba notato; elytris creberrime subasperato-punctatis, aureo-maculatis, apice

emarginato, denticulato.

3 4:

Long. 2# lin.

54 SERRICORNIA.

Hab. Panama, Taboga I. (Champion).

The thorax has a small dark green spot at the middle of the base; the smooth

transverse spaces between the striole are crossed by numerous short, fine strie; the

posterior ridge is smooth, nearly straight, directed outwards and keeping close to the

side. The elytra are flattened on the back, with scarcely any subcosta; the suture is

only raised at the apex ; each elytron has a pale golden spot in the basal impression, a

small one before the middle, and an elongate one behind the middle. On the underside

are the following pure white pubescent marks: a line on the prothoracic episterna ;

a narrow line on the metathoracic episterna; a broad stripe on the side of the meta-

sternum ; a small dot at some distance from the side of the basal abdominal segment ;

and a spot at the side of each of the three apical segments. ‘The mesothoracic episterna

and the posterior coxee are more or less clothed with white. There is a pale yellow spot

on the upper margin of the basal segment of the abdomen, and at this point the

lateral carina is slightly bent at an angle. The prosternal chin-piece is rounded. The

prosternum is sparsely punctured ; the intercoxal process is closely punctured, finely

margined laterally, a little widened behind the coxe, and then suddenly narrowed

obliquely, with a narrow central process.

7. Paradomorphus latevittatus.

Elongatus, subparallelus, cyaneus, parum nitidus; elytris purpurascentibus, vitta suturali lata rufo-ochracea

(basi apiceque haud attingente) ornatis; pectoris lateribus pube rufo-ochracea vestitis ; abdomine eneo.

Long. 44 lin.

Hab. Panama, Bugaba (Champion).

The head is closely rugose; in front it is longitudinally and rather widely sulcate,

with a little whitish pubescence above the clypeus. The antenne are very short. ‘The

thorax is transversely, rather finely striolate, and finely punctured, and impressed at the

sides ; the posterior ridge is distinct, turned outwards and downwards to meet the margin

just in front of the middle. The elytra are not much attenuated at the apex (where

they-are separately obtusely rounded and finely denticulate); the surface is closely

asperate; the subcosta is not strongly marked. ‘Ihe prosternal chin-piece is rather

straight in front, with a slight indication of a notch in the middle. ‘The prosternum

is sparsely pubescent, and the pubescence is very short; rather closely and roughly

punctured; the intercoxal process is flat, with the lateral margins raised and smooth,

abruptly constricted at the apex. The sides of the metasternum, the posterior half of

the episterna, the posterior coxe, the upper lateral margin of the abdomen, and a spot

at the side of the second segment are covered with reddish-yellow pubescence. ‘The

episterna are closely punctured, with the inner margin smooth. ‘The abdomen is finely

and not very closely punctured, except at the base of the basal segment, where the

punctuation is very dense ; the lateral carina is very distinctly sinuous at about the middle.

PARA DOMORPHUS. 5d

8. Paradomorphus plagiatus.

Nigro-wneus; capite cupreo, rugoso; thorace cupreo, transversim ruguloso, basi cyaneo-viridi; elytris

obscure cyaneis, dimidio apicali viridi-aurato, aureo-pubescente, apice denticulato.

Long. 3 lin.

Hab. Mexico, Cordova (Sal/é).

This species very much resembles Agrilus basalis, Chevr., but is rather broader, and

has the basal joint of the posterior tarsi very short. The head has a small blackish

fovea in the middle of the front. The thorax is convex, without any discoidal im-

pression, covered with curved ruge; the basal fourth is smoother and green; there is

a spot of white pubescence at the anterior angles. The elytra are rather flat, with no

subcosta, not much acuminate at the apex, where they are separately obtusely rounded

and denticulate, the second tooth from the suture being a trifle the largest; the apical

half is clothed with short golden pubescence, and this pubescence also ascends a short

distance up the side, and may be traced obliquely across the base towards the scutellum.

The prosternal chin-piece is straight in front. The prosternum is closely and finely

punctured, with grey pubescence ; the intercoxal process is very slightly arched poste-

riorly, and suddenly constricted at the apex, leaving a central narrow process at a

slightly lower level. ‘The episterna is densely punctured and pubescent. The posterior

coxe are clothed with orange-coloured pubescence. The abdomen is shining, not very

closely punctured ; the basal segment with a small silvery-grey spot in the middle of

the side; the second and third segments with larger spots; the lateral carina of the

basal segment is not sinuous in the middle.

9. Paradomorphus biplagiatus.

Sat brevis, griseo-niger, griseo-pubescens; thorace crebre punctulato, obsolete transversim striolato ; elytris

obscure cyaneo-viridibus, utrinque plaga rufo-cuprea ornatis; corpore subtus omnino pube griseo-alba

dense vestito.

Long. 27 lin.

Hab. Mexico, San Miguel del Rio (Sal/é).

The head is finely punctured; with some grey pubescence radiating from a very

slight median impression. The thorax is not very convex, broad, narrowed at the base,

where it is transversely impressed, sparsely pubescent ; the posterior ridge is distinct,

but short, obliquely directed inwards. The elytra are very slightly enlarged behind

the middle, and then narrowed to the apex, which is almost imperceptibly serrate ;

each elytron has a reddish-coppery patch extending from the shoulder to a little

beyond the middle, not reaching to the suture; near the apex there is a patch of

whitish pubescence. ‘The prosternal chin-piece is scarcely emarginate. The prosternum

is closely punctured ; the intercoxal process is flat, parallel, truncate at the apex. The

metasternum has a small fovea at the posterior margin. The episterna are closely

punctured. The abdomen is closely and finely punctured, the margins of the segments

56 SERRICORNIA.

steel-blue; the lateral carina of the basal segment has a very slight sinuosity in the

middle.

10. Paradomorphus corrugatus.

/Eneus, elytris obscure rufo-cupreis ; capite crebre rugoso, antice convexiusculo; thorace antice bene convexo,

fortiter rugoso, punctato ; elytris depressis, crebre asperatis, regione suturali obsolete parce flavo-griseo-

pubescente ; corpore subtus parce brevissime flavo-griseo-pubescente.

Long. 3-3} lin.

Hab. Mexico, Juquila, Toxpam (Sai/é).

The head in some examples is finely, in others coarsely, rugose; this is no doubt a

sexual distinction. The thorax is very convex; the lateral impression is not deep, and

does not extend to the anterior angles (it is scarcely visible from above), and in some

lights there is an indication of a longitudinal median impression ; the posterior ridge

is very distinct, curved. The elytra have the subcosta only very slightly marked in the

female, more distinct in the male; the apex is acuminate, finely serrate. ‘The pro-

sternal chin-piece is gently arcuate. The prosternum is closely and not very finely

rugose ; the intercoxal process is rather flat and pubescent, very slightly narrowed

posteriorly, emarginate at the apex. The metasternum has a fine impressed median

line; the episterna are finely punctured and pubescent. The abdomen is moderately

closely punctured, the basal segment at the sides and at the intercoxal process very

closely so; the latter is obtusely angular. The lateral carina of the basal segment is

rather strongly and widely sinuate about the middle.

11. Paradomorphus persimilis.

Pracedenti similis et affinis, differt tamen elytris postice magis acuminatis ; processu prosternali ad apicem

emarginato, angulis paullo elevatis.

Long. 3-33 lin.

Hab. Mexico, Chilpancingo in Guerrero (H6ge).

I separate this species with doubt from the preceding. It only differs in having a

more decided longitudinal impression on the thorax. The elytra are rather more

acuminate, and have the subcosta very distinct. The prosternum is more closely punc-

tured, and the angles at the apex are slightly raised.

12. Paradomorphus complexus.

Subdepressus, seneo-cuprascens, nitidus, thorace postice elytrisque olivaceo-virescentibus ; capite sat crebre

punctato, medio canaliculato-impresso; thorace parum convexo, punctis transversis crebre aspersis,

meuio leviter bi-impresso ; elytris creberrime asperatis, apice parum serrulato.

Long. 43 lin.

_ Hab. Nicaragua, Chontales (Belt).

The head has the punctures fine, but distinct, and slightly separated from each

other; the median longitudinal impression is slightly narrowed at the middle of the

PARA DOMORPHUS.—AGRILUS. 57

face. The thorax has in the middle two shallow impressions, which in some lights

appear united; the punctures are generally separated from each other vertically, but

are frequently united transversely or obliquely; the posterior ridge is well marked,

shining, turned down to the margin in front beyond the middle, and then running

parallel to the margin to the front angle. The elytra are evenly and rather coarsely

asperate ; the subcosta is only slightly marked. The prosternal chin-piece is very

slightly emarginate. The prosternum is closely and coarsely punctured, longitudinally

impressed in the middle; the intercoxal process is curved down at the apex, and obliquely

narrowed. The episterna are rather closely and moderately strongly punctured, with

a little pubescence on the outer edge. The abdomen has a transverse impression at a

short distance from the side of the basal segment, indicating the division between the

true first and second segments; the lateral carina is very slightly angular just behind

the middle of the basal segment.

A specimen just received from Panzos, Vera Paz (Conradt), differs from the one from

which I have taken the above description in being rather narrower, more brassy in

colour, and in having the thorax slightly rugulose. I am unable to say whether these

differences are sexual or specific.

AGRILUS.

Agrilus, Stephens, Illustr. Brit. Ent., Mandib. iii. p. 239 (1830).

The members of this genus are very numerous, and are represented in all quarters

of the globe; no less than 406 species are enumerated in Gemminger and Harold’s.

Catalogue (1869), and many have been since described. The number here recorded

from Central America is 141, and of these 52 are described from single specimens only.

Besides these there are several obscure species which I have not ventured to characterize

from unique examples.

As is commonly the case in large genera, a linear arrangement of the species is

difficult and I have been unable to find characters by which Agrilus can satisfactorily

be divided into sections. |

The antenne vary somewhat in length in the different species, but not in any very

marked degree. They are, however, very long in A. manatus, A. femoralis, A. anten-

natus, and A. sobrinus; and in A. planatus and its allies they are long and broad.

The head, when viewed from above, has its anterior outline sometimes arched, as in

A. vittulus (Tab. IV. fig. 18 a); emarginate, as in A. divaricatus (Tab. IV. fig. 16 a) ; or

incised, as in A. erustus (Tab. IV. fig. 13 a), &c. A. gracilipes and its allies have the

head flattened and vertical in front ; but every gradation between this and the inclined

head of A. furcillatus may be met with. The males frequently have the front of the

head of a brighter colour than in the females, and the sculpture is often finer.

The thorax has in the larger number of species a more or less clearly-defined ridge

near the posterior angles (‘ posterior ridge”) ; and I have divided the genus into two

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, February 1889. I

58 SERRICORNIA.

groups, in the first of which it is present, and in the second absent. A small number

of species (A. squalus &c.) have the posterior ridge represented by an oval swelling.

In the following descriptions I have given the direction of the ridge as viewed from

above ; in most cases a side-view of the thorax is given on the Plates, showing the curve

of the ridge as viewed from the side.

The elytra have very constantly the sutural area impressed, leaving a more or less

clearly defined raised line about the centre of each elytron: this raised line I have

called the “‘subcosta.” The apices are often divergent or expanded, but the species

with this character cannot well be associated.

The prosternum is in front furnished with a more or less semicircular projecting

piece (‘‘ chin-piece ”), which furnishes useful specific characters; the portion between

and behind the coxe (“ intercoxal process”) is very often more finely sculptured in the

male than in the female, and in the former is frequently pubescent. Posteriorly this

process is sometimes nearly horizontal, gradually narrowed to the apex, the apex

entering the mesosternal cavity (A. ratus &c.). In some species the part behind the

coxee is very obliquely narrowed, leaving a narrow central process (which enters the

mesosternal cavity) at a slightly lower level; in others this narrow central process is

still lower, and appears quite distinct from the rest of the intercoxal process. When

this is the case I have, in the following descriptions, described only the part which is

visible. In every case, however, it is necessary to draw out the process from the

mesosternum in order to see its form at the apex. This is easily done by laying the

specimen on its back, when in a relaxed state, and pressing the chin-piece while the

body is held firmly by a finger of the left hand. With pinned examples it is necessary

to hold the specimen firmly between the thumb and first finger while the prothorax is

bent back, otherwise the elytra become dislocated from the thorax.

The metathoracic episterna vary very little in form, but the sculpture and manner in

which the pubescence is arranged afford useful specific characters.

The abdomen has the first and second segments united into one; in a few species,

however, which I have placed at the end of the genus, the division between these seg-

ments is well marked by an impressed line. The lateral margins of the segments are

slightly incrassate and form a ridge (“ lateral carina”). ‘This lateral carina of the basal

segment furnishes excellent specific characters: viewed laterally it is always more or

less arched at the base, and posteriorly it is sometimes continued in a straight line (recti-

linear), as in A. acuductus, A. sublateralis, &c.; it slightly or greatly alters its direction

(angulated) at the point of division between the true first and second segments (as in

A. manatus), or has a notch at this spot, and sometimes has a deep semicircular dip

down (A. divaricatus &c.). In a few species (A. wanthonotus &c.) the males have a

longitudinal punctured or striated impression on the basal segment.

The following is the arrangement that I have adopted. Many of the species seem

AGRILUS. 59

almost equally out of place in any part of the series; in these cases I have inserted

them where they seem to cause least interruption :—

(12

aay

Species.

I. Abdomen with the first and second segments united intoone .... . 1-138

A. Thorax with very uneven surface; the elytra more or less variegated

with grey pubescence . . . . ee ee ee ee ee 1-6

B. Thorax with a posterior ridge *.

* Elytra with some distinctive character at the apex (dilated,

diverging, or spined) *.

§ Elytra arched downwards at the apex . . . . ... .- 7-9

§§ Elytra horizontal.

+ Thorax suleate . . . . woke ee ee 10-23

++ Thorax not sulcate’® ; generally sith two impressions, one

in front ofthe other . . . . 2... . 2 ee 24-45

** Elytra with the apex simply denticulate or serrate . . . . . 46-89 72

*x** A, furcillatus and A. sulcatus. 6. 6 6 we ee ee BO=OT 7/~7 2

RXXX 4, eupalamus . . . enh, at wees ce lte be Sandie OF 73

KKKKE 4, catherine, A. splendidipoden, and A. qureus . . . 2. « . 98295 7:

C. Thorax without posterior ridge. ‘

* Apex of each elytron emarginate . . . 2. . . 2 ee ee 96 7

** Apex of the elytrasimple . . .. . es fe eat O7 2 F -

*** Thorax more or less coppery; elytra uniformly granular, with |

grey pubescence; the antennz sometimes very broad . . . les=tir ’°*

#x*% 4, blandulus and A. signatus . 2. 1 ww we ee TLRS 19 7»

KRKEX 4, albofasciatus . . . wee ee ee eg es +44

¥XXXXX Abdomen in the male with a longitudinal impression on basal

segment... ee ee ee ee ee ee ew) HERO ME

D. Thorax with the posterior ridge replaced by an oval swelling *.

* Upper surface smooth and shining, at most with only a slight longi-

tudinal thoracic impression.

§ Apex of the elytraexpanded . . . 2... 1. ee Rr 7/2

§§ Apex of the elytrasimple . . . . : ar -422=127

** Upper surface less smooth; thorax with a dees faves or channel? 128-184" /27-/5

II. Abdomen with the first and second segments distinct. . . . - . + . “d85=14d~

1. Agrilus inequalis. (Tab. IV. figg. 10, 10 a.)

Obscure seneus, nitidus; capite excavato, binodoso; thorace subquadrato, vermiculoso, disco longitudinaliter

profunde canaliculato, lateribus oblique inclinatis, basi foveolatis; elytris cyanescentibus, unicostatis,

1 Except A. egnotus, which has a swelling.

> Except A. cavatus and A. funestus.

3 Except A. aprcalis.

‘ Except A incertus, which has a ridge.

60 SERRICORNIA.

post medium ampliatis, dein ante apicem angustatis, ad apicem paullo divaricatis, maculis plurimis irre

gularibus eneis confertim subtiliter rugulosis et griseo-pilosis impressis, interstitiis glabris, nitidis.

Long. 5 lin.

Hab. Ntcaraeva, Chontales (Belt).

The head is strongly and closely punctured, except on the inner side of the round

swelling on each side of the lower part of the face; there is a very slight prominence

above each eye. The thorax has its anterior margin somewhat raised in the middle,

and projecting very slightly over the head; the impressions are marked with numerous

short, curved, or wavy deeply impressed lines; the sides are rugulose; on each side of

the central impression there is a small smooth spot on the elevated part. The elytra

are transversely impressed at the base (leaving the shoulders somewhat elevated), and

gradually curved down to the apex; the costa on each is very obtuse, interrupted at

intervals by the small impressions; there are strong punctures on and just below the

shoulder, and at the apex; and at the side behind the middle there are numerous

asperities. The prosternal process is very strongly and closely punctured. The middle

of the short metasternum and the intercoxal process of the abdomen 4re sparsely and

delicately punctured. The sides of the abdomen are clothed with fine pubescence of a

slightly golden colour, which forms a large spot on the second segment and a small

one on the first and third segments.

2. Agrilus diversus. (Tab. IV. figg. 11, 11 a.)

Nigro-purpureus; capite cupreo, crebre punctato, fronte supra incisa, binodosa; thorace crebre punctato et

flexuoso-strigoso, disco sat profunde impresso, lateribus rugulosis, antice oblique impressis, ad angulos

posticos carina brevi levi; elytris confertim subtiliter rugulosis, dorsim planatis, postice inclinatis, pallide

griseo-maculatis, apice denticulato, lateribus obscure eneo-viridibus ; prosterno creberrime punctato.

Long. 5 lin.

Hab. Mexico, Toxpam (Sallé); Guatemaua, Chacoj in Vera Paz (Champion).

The ovate punctured swellings on the face of this species are on the upper part

raised above the level of the eyes. The thorax has its discoidal impression not so deep

as in the preceding species, narrow in the middle, widest behind; the raised parts on

the disc are generally tinted with green. The pale grey pubescence which forms the

markings on the elytra is extremely short. Each elytron has a small acute tooth at the

apex near the suture. The punctuation on the prosternum is very dense, less so on

the metasternum (though confluent transversely). The abdomen in the middle is less

closely and much less strongly punctured ; the apical segments sparsely clothed with

pale pubescence. The middle of the metasternum and abdomen are eneous. One

example has the sides of the metasternum slightly coppery.

3. Agrilus oculatus.

Fusco-cupreus, parum nitidus; capite fortiter excavato; thorace fortiter punctato et vermiculoso, inaquali;

elytris rugosis (maculis irregularibus levibus notatis), fusco et neo variegatis, litteris guttisque griseo-

pubescentibus ornatis.

Long. 3-34 lin.

AGRILUS. 61

Hab. Muxico, Cuernavaca in Morelos (Sallé, Hoge).

The head is strongly punctured, with a large deep impression at the top of the face,

continued in the middle down to the clypeus. The thorax is convex, transversely

impressed at the base; the disc with a longitudinal impression behind, and a round

impression on each side of the front part ; the sides only are very slightly arcuate. The

elytra are as wide as the thorax at the base, a little enlarged behind the middle,

attenuated at the apex ; the subcosta is fairly well marked, nearly straight; there are

numerous spots and marks of a brassy colour and these are finely rugose, the rest of

the surface being fuscous and: more shining. Each elytron has two (not very well

defined) quadrate pubescent spots near the suture before the middle (one above the

other); a more distinct ring at some distance from the apex (united to the side by a

pubescent line); and an angulated band near the apex. The prosternal chin-piece is

emarginate. The prosternum is closely rugose. The episterna have transverse lines

of punctures. The abdomen is shining, eneous; the lateral carina of the basal

segment is slightly interrupted about the middle, with a pubescent spot above; the

second, third, and fourth segments have each a small whitish spot at the side.

4. Agrilus sallei.

Agrilus sallei, E. Dugés, La Naturaleza, iv. p. 172, t. 6. figg. 8, 4 (1878)’.

Hab. Mexico, Guanajuato !, Leon !.

5. Agrilus velutino-maculatus. (Tab. IV. figg. 12, 124.)

Nigro-purpureus, supra surdus, subtus nitidus; fronte purpurea, quadrinodosa; thorace antice bifoveato, basi

macula mediana velutina, utrinque parce griseo-piloso; elytris nigris, griseo-pilosis, macula basali, fasciis

undatis duabus apiceque nigro-velutinis, apice denticulato. |

Long. 4 lin.

Hab. Mexico, Playa Vicente, Teapa (Sallé), Tapachula in Chiapas (Hége) ; GuaTEMALA,

Zapote, San Gerdnimo (Champion).

The four obtuse nodes on the front of the head are placed, two on the lower part of

the face, and two between the upper part of the eyes; the lower ones are a little larger

than the upper pair and are more rounded. All the lower part of the face in many of

the specimens is brassy instead of being purple; this is no doubt a sexual character.

The thorax has its front margin slightly raised, gently arched forward; there are two

distinct round fovee on the front of the disc, an oblong shallow impression in the

middle of the base, and a slight one within each posterior angle; the surface is closely

and strongly punctured, the punctures partially confluent transversely, giving a rugulose

appearance; the posterior ridge is short, not very distinct. The elytra are impressed

at the base and beneath the shoulders, leaving the humeral callosity somewhat raised ;

the sutural region for about half the length is flattened, but there is no distinct costa ;

62 SERRICORNIA.

the apical half is gradually inclined ; the apices are slightly divergent and finely denti-

culate. On each elytron there are the following black marks :—an ill-defined spot near

the base; an oblong spot before the middle, near the suture ; and a short stripe behind

the middle, united posteriorly to a rather broader, slightly oblique band which joins the

margin, the stripe and the band together forming a letter L; the apex is also black.

The series of specimens from Guatemala have the apices of the elytra a trifle more

divergent than in the three individuals from Mexico; but without a series from Mexico

I do not like to separate the two forms as species.

6. Agrilus exustus. (Tab. IV. figg. 13, 13a.)

Elongatus, subparallelus, parum nitidus, confertim sculpturatus, cupreo-sneus, thorace fasciaque elytrorum

post medium lata griseo-purpurascentibus, abdomine purpurascente; capitis vertice macula velutina

ferrugineo-nigra ornato; elytris obsolete marmoratis, ad apicem parum dilatatis, subtiliter serratis ;

femoribus cupreis, tibiis tarsisque purpurascentibus.

Long. 54 lin.

Hab. Mexico, Acapulco in Guerrero (Hége).

This species somewhat resembles A. velutino-maculatus in general form and characters,

but is quite differently coloured. The head is shining, coppery-brass; the upper part

of the forehead is rather deeply concave, with a moderately large dark brown (nearly

black) spot on the upper part; the lower part of the face is longitudinally canaliculate

(the channel filled with whitish scales), with a very distinct somewhat round tumour on

each side of it, the upper part of the tumours being slightly flattened. The thorax

is finely punctured and rugulose; the disc with a shallow oblong impression at the

base, and two indistinct impressions in front. The scutellum is moderately large and

distinct. The elytra are densely and finely punctured ; of an obscure brownish-brassy

colour at the base and apex; the part behind the middle obscure greyish-purple; the

apex curved down and also convex transversely.

7. Agrilus inclinatus. (Tab. V. figg. 1, 1a, 6.)

Brunneo-eneus, hic et illic cupreo tinctus; thorace disco minus dense sat obsolete punctato, medio impresso,

ad angulos posticos linea elevata introrsum directa instructo; scutello levi; elytris postice gradatim

angustatis, apicem versus inclinatis, nitidis, cyaneo-eneis (ad basin seneis, lateribus apiceque purpureo-

cupreis), subtiliter discrete punctulatis, maculis nonnullis albo-tomentosis ornatis, apice paullo dilatato et —

denticulato.

Long. 4 lin.

Hab. Mexico, Vera Cruz (Sallé); Panama, Volcan de Chiriqui 2000 to 3000 feet

(Champion). |

The top of the head is marked with numerous confluent flexuous impressed lines; in

the middle there is a well-defined smooth channel, which widens out into a nearly round

impression in the middle of the face, and on each side of this there is a slight round

swelling ; the space above the clypeus is closely and rather strongly punctured; the

AGRILUS. 63

clypeus and antenne are coppery. The thorax has the impression on the disc narrow

and shallow in front, much broader behind, deepest a little behind the middle, and at

this part is closely rugose; the surface on each side of the impression is marked with

not very closely placed punctures and some obscure undulating transverse lines. Each

elytron has the base occupied by a shallow, finely punctured sparsely pubescent impres-

sion; the rest of the surface of the elytra is shining, and the punctuation is fine and

irregular, except at the side below the shoulder where the surface is slightly roughened ;

the subcosta is smooth and not much raised; in the sutural area there are three pairs

of white pubescent spots—the first pair just before the middle, the second at the middle,

and the third near the apex; at the side rather behind the middle there is a small

transverse spot; and each elytron has about six strong acute teeth at the apex. The

prosternum is closely and finely rugose-punctate; the episterna are finely punctured

and clothed with white pubescence. The metasternum is sparingly and very delicately

punctured, but has an elongate finely punctured and pubescent stripe near the side.

The metathoracic episterna are smooth and shining in the middle, but punctured and

pubescent at the base and sides. The abdomen is very delicately and not closely

punctured ; but at the sides of the basal segment the punctures are rather stronger, in

places arranged in curved lines.

8. Agrilus sodalis. (Tab. IV. figg. 14, 14a.)

Niger, nitidus ; capite quadrinodoso, purpurascente ; thorace sat fortiter minus crebre punctato, disco postice

? 5 q 9 a

profunde foveolato, utrinque macula levi; elytris fere glabris, ad basin impressis, postice inclinatis, haud

costatis, guttulis numerosis griseo-albis ornatis, apice truncato, angulis exterioribus acute productis.

Long. 44 lin.

Hab. Guatemaua, San Gerénimo (Champion).

The head has two somewhat round nodes between the eyes at the upper part, and

two lower down on the face, all distinctly and moderately closely punctured. The

thorax at the sides is somewhat rugulose; the anterior margin is closely and rather

strongly punctured ; the raised surface of the disc, round the discoidal fossa, is smooth,

except a few punctures on each side of the middle; the lateral margins are tinted with

violet. The elytra have a somewhat deep impression at the base of each, and there is

a very shallow impression at the suture a little way from the base, another at the

middle, and a third behind the middle; these three impressions are very slight and

partially confluent ; the very short greyish-white pubescence forms two small approxi-

mate rings close to the suture, at one quarter from the base; there is a broad fascia

behind the middle (composed of numerous pubescent spots), and a similar fascia near

the apex; the parts occupied by the pubescent spots are finely punctured, the rest of

the surface is smooth; in some aspects the surface has a bronzy tint.

64 SERRICORNIA.

9. Agrilus distans. (Tab. V. figg. 2, 2a, 6.)

Viridi-ceneus, subtus brunneo-eeneus, sat nitidus, creberrime asperato-punctatus ; elytris maculis sex albo-

pubescentibus.

Long. 4 lin.

Hab. Mexico, Oaxaca (Hége).

The head has some closely placed converging curved punctured lines on the vertex ;

the face is rather strongly and closely punctured ; there isa very shallow impression in

the middle. The thorax has two very shallow inconspicuous impressions on the disc,

one anterior, the other posterior; the punctures are moderately close together, trans-

versely elongate, and often united to each other transversely by fine lines; on each side

of the front of the disc the surface is rather more rugulose ; the usual lateral impression

is brownish-zeneous, with some whitish pubescence at the anterior part; the posterior

ridge is distinct, smooth—commencing from the angle and curving round, it nearly

touches the side about the middle. The elytra are closely and somewhat strongly aspe-

rate-punctate ; the subcosta is well marked and sculptured in the same way as the rest

of the surface ; the basal impression is well marked and slightly pubescent ; just before

the middle there is a spot close to the suture, and at some distance from the apex

another more elongate and whiter spot. The prosternum is very closely and rather

strongly punctured ; the episterna are closely punctured and clothed with pale grey ~

pubescence. The metathoracic episterna are rather closely and moderately finely

asperate-punctate. The abdomen is distinctly and not very closely punctured. ‘The

lateral carina of the basal segment is distinctly angulated rather behind the middle, with

a small spot above (fig. 2 5). |

10. Agrilus squaliformis.

Agrilus squaliformis, Thomson, Typi Bupr. p. 85°.

Hab. Mexico, Cordova, Puebla (Sallé); Guatematat, Duefias, San Gerénimo 3000.

feet (Champion), Chimaltenango (Conradt).

This species has the lateral carina of the basal segment of the abdomen very strongly

angulated behind the middle.

Three examples, two from Mexico and one from Guatemala, are of a beautiful steel-

blue colour instead of the usual brassy-ceneous.

11. Agrilus divaricatus. (Tab. IV. figg. 16, 164, 6.)

Brunneo-sneus, subtus cuprescens, nitidus; capite antice longitudinaliter sulcato, macula flavo-pilosa ornato ;.

thorace crebre subtiliter punctulato, transversim aciculato, disco medio sat profunde sulcato; elytris.

postice bene attenuatis, ad apicem parum divaricatis et cupreis, regione suturali impresso et creberrime

punctato; abdomine medio quam elytra latiore, supra utrinque macula magna flavo-pilosa ornato ;

episternis metathoracis flavo-pilosis.

Long. 6 lin.

Hab. Mexico, Cuernavaca in Morelos (Sallé, Hoge), Almolonga, Iguala in Guerrero

(Hoge).

AGRILUS. 65

~The head is deeply canaliculate in front, and transversely impressed on the vertex

between the eyes; the channel occupies about one third the width of the space between

the eyes. The thorax has the deep impression on the disc closely rugulose, and the

raised surface immediately surrounding the impression is studded with small transverse

punctures; the posterior ridge is short, curved outwards and downwards to join the

lateral margin, and forms a continuous ridge to the anterior angle. The elytra have

the depressed sutural area and the sides closely and somewhat rugosely punctured ; the

subcosta is delicately and not very closely punctured; there is a scarcely noticeable

yellow pubescent spot close to the suture, before the middle, and a line of pubescence

behind the middle, bordering the suture; the apex of each elytron is obliquely truncate

on the inner side and armed with about six small teeth. The lateral carina of the basal

segment of the abdomen is semicircularly emarginate at the place occupied by the yellow

spot.

The example from Almolonga and one in the British-Museum collection differ from

the type from Cuernavaca in having the elytra relatively longer, more narrowed at the

apex, and the inner apical truncature more oblique. Having only two examples I do

not venture to separate these as a distinct species.

12. Agrilus immaculifrons.

Preecedenti simillimus, differt tamen fronte macula flava nulla; elytrorum truncatura apicali minus obliqua,

dente exteriore magis acuto.

Long. 6-7 lin.

Hab. Guatemata, Duefias (Champion).

This species closely resembles A. divaricatus, but is easily recognized by the absence

of the yellow pubescent spot on the forehead. There is also no pubescence on the

metathoracic episterna. ‘The apical truncature of the elytra is less oblique, the

external angle more dentiform. The punctuation is rather stronger throughout.

13. Agrilus levipennis.

Cyaneo-niger, nitidus, thorace elytrisque #nescentibus; thoracis disco fere levi, medio canaliculato ; elytris

tenuiter punctatis, vitta mediana maculaque post medium flavis et vitta apicali fere alba ornatis, singulo

. ad apicem emarginato, angulo externo spiniformi.

Long. 6-74 lin.

Hab. Mexico, Cordova (Sallé); GuatEeMata, Sabo in Vera Paz (Champion).

The head is somewhat concave in front, with two oval swellings. The thorax has

the disc extremely finely and obscurely punctured ; the elongate discoidal impression is

well marked ; the posterior ridge is short and thick, and close to the margin, The elytra

have the subcosta well marked, smooth; the sutural area is finely and not very closely

punctured, and the margin is finely but not so distinctly punctured; the apex of each

elytron is emarginate, the inner angle denticulate, the outer one spiniform and more

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1889. K

66 SERRICORNIA:

produced than the inner angle. The prosternal process is rather convex, finely and not

very closely punctured. The metasternum is extremely delicately punctured, and has

a stripe of golden-yellow at the side continued on to the posterior coxa. The meta-

thoracic episterna are nearly smooth, with the outer margin closely punctured. The

abdomen is finely punctured ; it has a stripe of golden-yellow pubescence on the upper

margin of the basal segment, and a rather large spot at the side of the second segment ;

there is also a straight stripe of pale pubescence on each side of the basal segment at

some distance from the side; the lateral carina of the basal segment is rectilinear

posteriorly, with a small notch behind the middle.

Two of the examples from Cordova are smaller in size, and have the elytra

purple.

14. Agrilus balznoides. (Tab. V. fig. 4.)

Supra fusco-cupreus, surdus; subtus purpureo-cupreus, nitidus ; capite crebre punctato, fronte profunde exca-

vata; thorace fortiter transversim striolato (striolis punctatis), disco longitudinaliter canaliculato-

impresso, impressione fusco-velutina ; elytris confertim fortiter subrugoso-punctatis, medio plaga oblonga

fusco-velutina ornatis, ad apicem divergentibus, margine apicali denticulato.

Long. 53 lin.

Hab. Mexico, Cuernavaca (Sallé), Misantla (Hoge).

A very distinct species, having the apices of the elytra widely diverging. ‘The male

has a stripe of yellowish pubescence along the whole length of the sternum ; the same

part in the female is bare, but densely punctured. There is a large patch of yellow

pubescence at the side of the metasternum (extending on to the coxee) in both sexes.

15. Agrilus centralis. (Tab. V. figg. 3, 3a, b.)

Brunneo-eneus, nitidus ; capite excavato, antice binodoso; thorace tenuiter punctulato, medio late profunde

canaliculato, canaliculo crebre fortiter punctato; elytris tenuiter haud crebre punctulatis (ad suturam

crebrius punctatis), maculis sex parvis sordide flavis notatis, ad apicem ipsum perparum dilatatis, denti-

culatis, singulo elytro dente centrali validiore instructo ; pectore abdomineque flavo-maculatis.

Long. 5 lin.

Hab. GuateMALA, Chimaltenango (Conradt).

The head is broadly channelled or excavated, at the top as well as in front; rather

strongly punctured, the vertex with curved lines of punctures; at the lower part of the

face there is on each side an oblique node. The thorax is transverse, with the sides

gently arcuate ; finely but not very closely punctured and obscurely striolate ; the longi-

tudinal median impression has numerous curved lines of punctures ; the posterior ridge

is well marked, placed close to the margin, and curved outwards and downwards to the

margin (fig. 3). The elytra have the subcosta strongly marked but obtuse; the punc-

tures on and outside the subcosta are fine and somewhat separated from each other,

those in the sutural area are stronger and a little closer together, but not crowded ;

the apex is a little wider than at the part just before it, the outer angle more or less

AGRILUS. 67

rounded and denticulate, the inner angle with one or two teeth; in the middle of the

apex of each elytron there is a strong acute tooth (fig. 3a). One example has a

rather more distinct tooth at the outer angle. Each elytron has three small whitish

or yellowish spots: one not far from the base, a second at one third. from the apex,

and the third nearer to the apex than to the second spot. The prosternal chin-piece is

scarcely emarginate. The prosternum is finely punctured in front, the intercoxal

process more strongly punctured, very lightly impressed in the middle, a little widened |

at the apex, which is slightly angular (almost truncate), with the central process at a

lower level. The episterna, the posterior angle of the metasternum, and the outer

part of the posterior coxe are clothed with golden pubescence. The abdomen has a

moderately large spot on the upper margin of the basal segment, an elongate spot on

the upper margin of the second segment, and a larger spot at the side of the same

segment, golden-yellow; the lateral carina of the basal segment is strongly angulated

behind the middle (fig. 3 6).

16. Agrilus letus. (Tab. V. figg. 5, 5a.)

Angustus, nitidus; capite olivaceo-aneo, transversim strigoso, antice longitudinaliter canaliculato ; thorace

olivaceo-seneo, antice bene convexo, ad basin transversim impresso, tenuiter undatim striolato, disco longi-

tudinaliter impresso; elytris sat crebre punctatis, maculis octo aureo-flavis ornatis, ad apicem emarginatis,

denticulatis.

Long. 5 lin.

Hab. Mexico, Orizaba (Sad/é).

The head is rather unusually rough in front; the longitudinal impression is well

marked but not abrupt, parallel. The thorax has its anterior margin arched forwards

in the middle; the oblique fine striole are not very close together, and are marked

at intervals with very fine punctures; the discoidal impression extends nearly the

whole length of the thorax and is narrowed at the base; the posterior ridge is sharp,

well-defined, scarcely curved, and does not reach the margin. The elytra have the

subcosta not very well marked, except at the middle; the sutural area is closely and

rather coarsely punctured, the rest of the surface similarly punctured, but the punc-

tures are not quite so close together; each elytron has a yellow spot in the basal

impression, another before the middle, a third at the middle, and an oblique streak

at some distance from the apex; the apex is emarginate, with two or three very small

teeth at the sutural angle and several very small ones on the outer apical margin. The

prosternal process is rugose, slightly pubescent. ‘The metasternum is very unequally

punctured, shining; with a yellow spot at the posterior angle. The metathoracic

episterna are shining, with some irregular punctures. The abdomen is somewhat

evenly punctured all over, the punctures distinct and moderately separated from each

other; there is a yellow spot at the side of the second segment; the lateral carina of

the basal segment is deeply angularly emarginate behind the middle (fig. 5 a).

68 . SERRICORNIA.

17. Agrilus nodifrons.

Supra sneo-cupreus, subtus cupreus; fronte profunde incisa; thorace confertim sat fortiter vermiculoso-

strigoso, disco in longitudinem profunde late impresso ; elytris obsolete griseo-maculatis, ad apicem paullo

divaricatis, denticulatis.

Long. 53 lin.

Hab. Mexico, Etla (Sal/é); Nicaracua, Chontales (Belt).

The head is concave above, deeply incised anteriorly, the incision having a_hori-

zontally compressed node on each side, only visible when viewed from above. The

thorax has the deep longitudinal impression more finely strigose than the rest of the

surface ; on the ridges between the strie on the raised parts of the disc some fine

punctures may be seen here and there. The elytra are asperate-punctate; there is a

deep impression at the extreme Lase within the shoulder; the subcosta is well marked

and smooth, but it disappears at some distance from the apex; the extreme apex has

a very narrow coppery border. The prosternum is finely rugose in front; shining and

coarsely punctured posteriorly. ‘The metasternum is clothed with pale yellow pubes-

cence. The metathoracic episterna are smooth and shining at their base. The

abdomen is smooth and shining, very delicately and sparingly punctured; the sides of

the basal segment are moderately strongly vermiculate-punctate; the next segment

has a large triangular spot of pale yellow pubescence at the side; the lateral carina of

the basal segment is slightly angulated behind the middle.

18. Agrilus discoidalis. (Tab. V. figg. 7, 7a.)

Elongatus, parum nitidus, brunneo-eneus, capite cuprascente, elytrorum apice purpureo-cupreo ; thoracis disco

sat fortiter punctato, transversim ruguloso, medio excavato, lateribus flavo-pubescentibus; elytris con-

fertim rugoso-punctatis, apicem versus levioribus, subcosta nitida, parcius subtilius punctulata, prope

suturam yitta integra pube aurea ornatis.

1a:

Long. 63 lin.

Hab. Mexico (Brit. Mus.).

Viewed from above, the head is moderately triangularly emarginate in front; the

face is closely and moderately strongly punctured, impressed in the middle with a

golden pubescent stripe down the centre. The thorax has a very large oblong-ovate

deep median impression appearing nearly one third the width of the thorax, and the

impression is as closely and strongly punctured and rugulose as the rest of the disc;

the posterior ridge is short, slightly curved, obtuse, punctured, not conspicuous when

viewed from above. The elytra have a stripe of golden pubescence extending from the

base to the apex, just inside the costa; the surface between this stripe and the suture

is rather strongly rugulose for two thirds the length of the elytra, then it is finely

punctured ; the sides are also rugulose, except towards the apex. The prosternum is

strongly punctured, the intervals between the punctures very unequal, so that some

of the punctures are close together and others more widely separated. The middle of

AGRILUS. | 69

the metasternum is strongly punctured, the punctures not very close together; the

episterna are finely and closely asperate-punctate. The abdomen has the punctuation

fine, the punctures not very close together in the middle, closer together at the sides

(especially at the base of the segments); the basal segment has some irregular trans-

verse lines of stronger punctures at the sides; the lateral carina of the basal segment

is rather strongly angulated behind the middle (fig. 7 a).

19. Agrilus cavatus.

Agrilus cavatus, Chevr. Silberm. Rev. Ent. v. p. 99°.

Agrilus texanus, Crotch, Proc. Ac. Phil. 1873, p. 94.

Hab. Nortu America, Texas ?.—Mexico (Sal/é)!, Northern Sonora (Morrison), Cerro

‘de Plumas, Almolonga, Acapulco in Guerrero (Hége), Cordova (Sallé, Hége), Vera

Cruz, Jalapa (Héq@e).

The specimens from Northern Sonora were received with the name J. teranus, Cr. ;

and, judging from the very brief description, this determination appears to be correct,

in which case I think the separation of A. texanus from A. cavatus is impossible.

20. Agrilus subcarinellus.

Agrilus subcarinellus, Thomson, Typi Buprest. p. 89°.

Hab. Mexico }.

This species is stated to be allied to A. cavatus, Chevr.

21. Agrilus pilosellus.

Agrilus pilosellus, Thomson, Typi Buprest. p. 90’.

Hab. Mexico }.

This species is described as allied to A. texanus, Cr., which is a synonym of

A. cavatus, Chevr.

22. Agrilus correctus.

Agrilus correctus, Thomson, Typi Buprest. p. 90°.

Hab. GuaTEMALA 1,

“* Preecedenti (A. pilosellus) refert, sed valde diversus.”

23. Agrilus funestus.

Agrilus funestus, Gory, Mon. iv. Suppl. p. 221, t. 36. f. 212.

Hab. Mexico’, Cordova, Playa Vicente, Tuxtla, Parada, Juquila (Sallé), Cerro de

Plumas, Paso del Macho, Teapa in Tabasco (Hége).

This species varies in colour, some examples being brassy-green, others blackish-

purple.

70 SERRICORNIA.

24. Agrilus excisus. (Tab. V. figg. 6, 6a.)

Obscure brunneo-eneus, parum nitidus, subtus cuprascens ; capite antice rufo-cupreo, subopaco; thorace sat

crebre punctato et transversim ruguloso, disco bi-impresso, angulis posticis linea nitida curvata instructis ;

elytris ruguloso-punctatis, maculis octo pallide griseis ornatis, ad apicem cupreis, paullo ampliatis, singulo

exciso, denticulato.

Long. 3% lin.

Hab. Panama, Bugaba 800 to 1500 feet (Champion).

The head is longitudinally impressed on the forehead, which is bigibbose; the

punctures on the front are moderately close together and not very distinct, those on

the vertex being much stronger and longitudinally confluent. The thorax has two

shallow impressions on the disc, one at the base, and one in front of the middle; the

posterior ridge is curved and punctured, and consequently not very conspicuous. ‘The

elytra have the punctures rather strong and united transversely by double parallel

lines; the pale whitish-grey spots are placed in the sutural impression—one in the

basal impression, one before the middle, one behind the middle, and one smaller one

near the apex; at the apex they are parallel; each is emarginate, denticulate at the

outer angle and sutural angle, with a strong acute spine at the outer side of the emar-

gination (fig. 6a). The prosternum is very closely and moderately strongly punctured,

slightly shining, sparsely pubescent. ‘The metathoracic episterna are moderately

closely and strongly punctured and sparsely pubescent. ‘The abdomen is shining, very

finely and moderately closely punctured; at the sides are two obscure sparsely pubes-

cent pale greyish spots; the lateral carina of the basal segment alters its direction

posteriorly (fig. 6),

25. Agrilus cribricollis. (Tab. V. figg. 8, 8 a—c.)

Omnino brunneo-eneus, parum nitidus; thoracis disco fortiter sat crebre punctato, transversim ruguloso,

medio in longitudinem profunde impresso; elytris tenuiter flavo-griseo-pubescentibus, regione suturali

creberrime subtiliter punctulato, maculis nonnullis fere calvis nitidis ornatis, lateribus confertim

Tugosis, apice ipso rufo-cupreo, denticulato.

Long. 43 lin.

Hab. Mexico, Jalapa (Hoge).

The head is coarsely punctured on the vertex, triangularly impressed in front, the

face very finely punctured and pubescent, with two small smooth raised spots in the

middle; the clypeus and a line running along the inner side of the eye shining

coppery. The thorax is coarsely punctured on the disc, with the intervals confluent

transversely in front; the deep longitudinal impression is indistinctly punctured,

narrowed in front; the sides are finely rugose; the posterior ridge is well defined,

shining, rather swollen and raised anteriorly (fig. 8a). The elytra are sparingly

clothed with short greyish-yellow pubescence, except at the apex (fig. 8¢). Hach

elytron has four bare, more shining spots—the first, near the base, does not touch the

subcosta nor the suture; the second and third touch the subcosta but not the suture ;

AGRILUS. 71

the fourth, which is the largest, touches the margin, passes over the subcosta, but does

not reach the suture. The prosternum and middle of the metasternum are closely and

rugosely punctured. The abdomen is moderately strongly punctured, the punctures

less crowded in the middle than at the sides; the segments have a narrow smooth

border ; the lateral carina of the basal segment alters its direction posteriorly (fig. 8 6).

26. Agrilus sparsus. (Tab. V. figg. 10, 10 a-c.)

Griseo-niger, vix e#nescens, pube brevissima pallide grisea aspersus; thorace in longitudinem canaliculato-

impresso, prope angulos posticos carina nitida cyanea instructo ; elytris ad apicem bene angustatis, apice

ipso purpureo-cupreo.

Long. 43 lin.

Hab. Mexico, Oaxaca (Hoge).

The head, when viewed from above, is not much impressed between the eyes; the

vertex has some closely-placed, longitudinal, punctured, impressed lines; the face is

- finely pubescent, rather flat, with an impressed line down the middle. The thorax is

very parallel; the longitudinal discoidal impression is rather deep, scarcely narrower

in front than behind; all the discoidal area is strongly punctured and transversely

rugulose (fig. 10); the sides are finely pubescent; the posterior ridge is well defined,

linear, straight, shining, slightly sloping inwards anteriorly, nearly half the length of

the thorax (fig. 10a). The elytra are moderately closely asperate, rugulose on the

disc, where the colour is darker; the subcosta is sculptured like the rest of the

surface, distinctly raised at the middle, scarcely raised near the base, and obsolete

towards the apex; the apices are slightly divergent (fig. 10 0); the very short pale

pubescence, which is scattered over the surface, is placed so as to give the appearance

of three pairs of spots on the sutural area—one pair before the middle, the second at

the middle, the third behind the middle. The prosternum is closely rugose. The

abdomen is marked by numerous confluent curved strie; the last segment has some

very small round tubercles at the extreme apex; the lateral carina of the basal

segment is slightly flexuous (fig. 10 c).

27. Agrilus aciculatus. (Tab. V. figg. 11, 112.)

Brunneo-cupreus, parum nitidus, subtus cupreus; thorace transversim strigoso ; elytris maculis oblongis flavo-

griseis notatis, ad apicem paullo ampliatis acute multi-denticulatis.

Long. 53 lin.

Hab. Mexico, Tapachula in Chiapas (Hége).

This species somewhat resembles A. divergens, but is more brownish-coppery in

colour, the head and underside of the body coppery, and the sutural area of the elytra

blackish between the spots. ‘The head at the top is rather strongly strigose; the face

punctured, rather deeply longitudinally impressed in the middle, the impression filled

with golden pubescence. The thorax has two impressions on the disc, the posterior

one rather the deeper. The elytra are finely and closely punctured on the sutural

72 SERRICORNIA.

area; the subcosta is raised, shining and less closely punctured ; the sides are finely

asperate-punctate. The prosternum is finely punctured in front, strongly and less

closely punctured posteriorly. The sides of the basal segment of the abdomen are not

very closely punctured, and the punctuation is obscure; the next segment has a large

spot of somewhat golden pubescence at the side; the lateral carina of the basal

segment alters its direction posteriorly (fig. 11 ).

28. Agrilus squamulatus.

Fusco-cupreus, subsurdus, thorace senescente ; capite antice dense rugoso flavo-pubescente ; thorace crebre

fortiter transversim striolato, disco longitudinaliter impresso; elytris creberrime rugosis, maculis octo

sordide flavis ornatis, ad apicem paullo ampliatis, denticulatis, singulo in medio dente majore instructo ;

corpore subtus plus minusve sordide flavo-pubescente.

Long. 4-5 lin.

Hab. Mexico, Cordova (Sallé), Jalapa (Hoge).

The head is very gently concave in front. The thorax has the discoidal impression

distinct but not very deep, constricted before the middle, the anterior portion smaller

than the posterior; this impression (as well as the lateral one) is filled with dull

yellowish pubescence; the posterior ridge is sharp and well defined, curved outwards

and joining the margin about the middle. The elytra in a fresh specimen would

probably be almost entirely powdered with yellowish pubescence (in most of our

specimens the sides are more or less pubescent); there is a spot in the basal impression,

one before the middle, a more distinct one considerably behind the middle, and a

streak at the apex. The prosternum is closely punctured and pubescent. ‘The meta-

sternum is pubescent except in the middle. The abdomen is broadly pubescent at the

sides of the basal and second segments.

This species was received with the manuscript name “ A. sguamulatus, Deyr.,”

attached. An example in the British Museum is labelled “ A. celaticollis, Laf.”

29. Agrilus laticaudatus. (Tab. V. figg. 9, 9a).

Precedenti affinis et similis. Latior, depressus ; elytrorum apice latiore.

Long. 5 lin.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

This species closely resembles A. sguamulatus, but is rather broader and a little

more depressed. The elytra are much more dilated at the apex, finely denticulate and

with no distinctly larger tooth, but with a very small sinuosity at a little distance from

the suture (fig. 9 a).

30. Agrilus scabiosus.

Agrilus scabiosus, Thomson, Typi Bupr. p. 88 '.

Hab. Muxtco!, Cordova (Sallé); GuaTEMALa, San Gerdnimo (Champion) ; PANAMA,

Volcan de Chiriqui 2000 to 3000 feet (Champion).

AGRILUS. 73

This species varies in length from 52 to 64 lines. Thomson gives the colour as

purple; this, however, is not the most usual colour, the disc of the thorax and portions

of the elytra being generally of a dark green. Two examples before me have the apex

of the elytra tinted with coppery. The front of the head is coppery-red, and there is

a small yellowish-white pubescent spot above the clypeus. The sides of the prosternum

and metasternum are clothed with very fine pale grey pubescence, and there is a some-

what large triangular spot of the same colour at the side of third abdominal segment.

31. Agrilus chlorocephalus. (Tab. IV. figg. 17, 17a, 3.)

Elongatus, angustus, sruginoso-gneus, nitidus; capite antice lete purpureo, clypeo viridi; thoracis disco

sparsim punctulato, basi foveolato; elytris subcostatis, regione suturali creberrime subtiliter punctulato,

subeosta in medio parcius subtilius punctulata, apice ipso parum dilatato, recte truncato, denticulato,

angulo externo dentiformi; metasterni lateribus fulvo-maculatis,

Long. 6 lin.

Hab. Mexico, Cordova (Sadlé).

The front of the head is of a beautiful purple, the purple limited above by an opaque

black velvety spot ; rather deeply longitudinally impressed above the clypeus, with a

spot of white pubescence in the middle. The thorax has in certain lights a distinct

purple shade at the sides; the front part of the disc is convex, with a very slight

longitudinal impression; the base is somewhat impressed, and has a rather larger

longitudinal median impression; the punctures are distinctly separated from each

other; there is an oblique channel on each side (bounded on its outer side by the

usual carina), with a small spot of white pubescence at its anterior extremity. The

elytra are densely and finely punctured in the sutural area; the rest of the surface is

much less closely punctured, the punctures being distinctly separated from each other ;

there is some very fine inconspicuous pale pubescence on the sutural area, interrupted

in the middle by an oblong black spot, and nearer the base there is a trace of a similar

(but shorter) spot; the apex is purple on the outer side. The basal segment of the

abdomen is slightly visible at the sides of the elytra, the visible part being clothed with

fulvous-yellow pile. A spot at the posterior angle of the metasternum, the metathoracic

episterna, and the posterior coxe are fulvous-yellow. The legs are somewhat coppery,

with the anterior surface of the front legs green.

32. Agrilus lentulus. (Tab. V. fig. 12.)

Preecedenti similis, differt thorace fortius punctato; elytris ad apicem intus oblique truncatis, denticulatis,

angulo externo vix dentiformi.

Long. 6 lin.

Hab. Mexico, Cordova (Sallé).

This insect differs from A. chlorocephalus in having the front of the head blue-green.

The thorax is obscure purple, with a green (coppery-bordered) line on each side of the

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1889. L

74 SERRICORNIA.

basal impression ; the surface is rugulose at the base. The punctuation of the meta-

sternum and abdomen is rather stronger. The most important difference, however, is

in the apex of the elytra, which is oblique on the inner side, with about six or seven

small teeth; the outer angle is not produced into a strong tooth (fig. 12).

88. Agrilus apicalis. 7

Angustus, seneus, nitidus ; capite antice longitudinaliter canaliculato, viridi-eneo purpureo-tincto; thorace

convexo, cupreo-vario, medio profunde canaliculato, crebre fortiter punctato et transversim subruguloso,

macula laterali sordide alba ornato ; elytris viridi-sneis (ad apicem purpureis), crebre punctatis.

Long. 5 lin.

Hab. Mexico, Playa Vicente (Sallé); GuaTemata, Panzos in Vera Paz (Conradt).

The head is finely and not very closely punctured on the top; the face deeply longi-

tudinally channelled; the upper part impressed and with a brown velvety spot in the

middle ; in the lower part of the channel there is an elongate yellowish spot; the

space between the channel and the eye is very convex and shining, and not very closely

punctured. The thorax is strongly and rather closely punctured; the discoidal impres-

sion is deep, narrowed in front, dull brown in the middle; the posterior ridge is well

marked and sharp, curved outwards, and joins the margin at about the middle; there

is a spot of whitish pubescence in the lateral impression. ‘The elytra have the subcosta

well marked ; the sutural area is closely and finely but distinctly punctured; the rest

of the surface is rather more strongly punctured, the punctures distinctly separated

from each other; each elytron has about six acute teeth at the apex. The prosternal

process is rugosely punctured and pubescent, slightly dilated behind the coxe. ‘The

metasternum is densely and finely punctured in the middle and at the sides, dull; the

rest of the surface is shining and strongly punctured, the punctures not very close

together. The metathoracic episterna are densely and finely punctured, clothed with

deep yellow pubescence. The abdomen is shining, finely and not very closely punctured ;

the basal segment more coarsely punctured at the sides, and with a stripe of dense and

fine punctuation on each side at some distance from the middle, united to the lateral

margin posteriorly by a narrow line of similar punctuation.

The specimen from Panzos differs from the type in having the prosternum and middle

of the metasternum shining, without pubescence, strongly punctured, the punctures not

generally crowded together. It is no doubt the female of the same species.

A, apicalis differs from A. lentulus in having the thorax sulcate in the middle.

34. Agrilus dentifer. (Tab. V. figg. 13, 13 a, 0.)

Angustus, nitidus, subtus sneus, supra viridi-eneus, capite elytrorumque apice purpureo-cyaneis; thorace

tenuiter punctulato, disco bi-impresso; elytris obsolete griseo-vittatis, singulo apice truncato, angulo

externo in spinam acutam producto.

Long. 43 lin.

Hab. Mexico (Lrit. Mus.).

AGRILUS. f3)

The head is dark blue, verging into purple in front ; the forehead is rather flattened

and with a triangular velvety spot; the face has a deep channel, which has a white spot

just above the clypeus. The thorax has two impressions on the disc, the anterior one

small and shallow, the posterior one rather deeper and larger; the punctuation is very

fine, the punctures not close together; the posterior ridge is rather sharp and distinct—

after leaving the base it is nearly straight, directed obliquely to the side, which it joins

considerably beyond the middle (fig.13a@). The elytra have the subcosta well marked ;

the sutural area is closely and finely punctured, with an obscure elongate greyish

pubescent spot before the middle, and a long stripe extending from just behind the

middle to the apex (fig. 13 6); the subcosta is sparingly, the sides more closely punc-

tured; the purple colour at the apex does not quite reach the suture. The sides of

the metasternum, the metathoracic epimera, and the posterior coxee are covered with

deep yellow pubescence.

85. Agrilus angustus.

Séenogaster angustus, Chevr. Col. Mex. Cent. ii. fasc. 6. no. 137 (1835) °.

Agrilus propinguus, Chevr. Silbermann’s Rev. Ent. v. p. 95 (1837) *.

Agrilus multinotatus, Lap. & Gory, Mon. ii. p. 62, t. 14. f. 81 (1841) °*.

Hab. Mexico, Cordova, Orizaba, Playa Vicente (Sad/é), Vera Cruz3, Alvarado !;

Guatemala, Chacoj in Vera Paz (Champion).

After a careful comparison of the type-specimens of A. angustus and A. propinquus,

now in the British-Museum collection, J have come to the conclusion that they are

the sexes of one and the same species. A. angustus is smaller and narrower than

A. propinquus, and has the front of the head flatter, more distinctly punctured, and

brassy in colour.

36. Agrilus strigifrons. (Tab. IV. figg. 19, 19 a-c.)

Angustus, nitidus, virescenti-cyaneus, supra virescens ; capite antice sat profunde canaliculato, vertice strigoso ;

thorace brevi, transversim striolato, disco bi-impresso; elytris griseo-maculatis, ad apicem purpureis,

spinulosis.

Long. 5 lin.

Hab. Mexico, Tuxtla (Saldé).

The head has the channel in front deep and occupying about one third the width

between the eyes—it is continued posteriorly by an impressed line; the surface on

each side of the channel has numerous distinct punctures; the upper part of the fore-

head and the vertex are marked with closely placed, curved, strongly marked striole.

The thorax has the discoidal impressions well marked—the anterior one is somewhat

triangular in outline, the posterior one oval; the posterior ridge is distinct, curved

outwards and downwards to the lateral margin. ‘The elytra have the subcosta well

marked, but obtuse; the surface in the sutural area is densely and finely punctured,

76 SERRICORNIA.

the subcosta is comparatively smooth, the sides are closely and more strongly punctured ;

each elytron has an elongate inconspicuous grey pubescent spot just before the middle,

another behind the middle, and a third near the apex, and there is also a very small spot

at the side behind the middle. The prosternal process is broad and flat, shining, with

numerous rather strong punctures. The metasternum has a deeply-impressed median

line. The abdomen is dark steel-blue, with the basal segment zneous in the middle ;

the punctuation is delicate and not very close.

37. Agrilus manatus. (Tab. V. figg. 14, 14a-c.)

Supra eneo-viridis, subtus sneus, nitidus, capite, vertice thoracisque disco olivaceis; capite creberrime sat

fortiter punctato; thorace crebre evidenter punctato, disco sat profunde bifoveato ; elytris creberrime

punctatis (costa fere levi), singulo apice denticulato et dente acuto armato.

Long. 63 lin.

Hab. Mexico (Brit. Mus.).

The head is brassy-green in front, closely and rather strongly punctured, with a not

very well-defined impression above the clypeus. ‘The antenne are very long (fig. 14 0).

The thorax has the punctuation rather strong, close, often subconfluent transversely ;

the impressions on the disc are rather deep, transversely ovate; the posterior ridge is

well marked, turned down to meet the margin rather before the middle (fig. 14 a).

The elytra have the subcosta well marked, nearly smooth, and its limits well defined by

the punctuation of the rest of the surface; the punctuation in the sutural area is close

and fine, at the sides it is a little less close; the apex of each elytron is somewhat

expanded, finely denticulate, with a larger central tooth which is coppery. The pro-

sternal process is moderately strongly and somewhat closely punctured. The meta-

sternum is very distinctly, moderately strongly, and rather thickly punctured, but the

punctures are well separated from each other. The metathoracic episterna are thickly

and very finely punctured, shining on the inner side, clothed with yellow pubescence on

the outer side. The abdomen is finely but distinctly punctured, the punctures mode-

rately close together; each segment has at the side a not very distinct triangular spot

of fine pale golden-grey pubescence; the lateral carina of the basal segment alters its

direction posteriorly (fig. 14 ¢).

38. Agrilus vittulus. (Tab. 1V. figg. 18, 18 a, 4.)

Brunneo-zneus ; thoracis disco foveis duabus profundis notato, sulco laterali flavo-piloso; elytris maculis sex

vittaque suturali flavis, apice purpureo.

Long. 4—4? lin.

Tab. Mexico, Cordova, Cerro de Plumas (H6ge).

The punctuation of this insect does not present anything unusual: it is moderately

strong throughout, more dense and fine on the sutural area of the elytra than at their

sides. The head is much flattened in front, with a small fovea on the vertex and a very

small one on each side, and a shallow one above the clypeus; the male has the face

AGRILUS. 77

bluish-green, and the impressions are not so distinct as in the female. The thorax is

not much broader in front than behind; the two, rather deep, discoidal impressions

are not completely separated and form a figure of 8; the posterior ridge is well

defined and smooth, somewhat swollen anteriorly. The elytra are a little more olive-

green than the rest of the surface; the purple colour is confined to the extreme apex

in the male, but extends some distance along the sides in the female; there is a spot

of yellowish pubescence in a deep round impression at the base just within the shoulder,

a slightly elongate one near the suture before the middle, and a very small one near the

side, scarcely behind the middle; and the apical third of the sutural impression is

clothed with pale yellow pubescence. The abdomen has a spot of yellowish pubescence

on the upperside on the margin of the basal segment (visible above, particularly in the

female), and similar elongate spots on the third, fourth, and fifth segments. The pro-

sternal chin-piece is distinctly emarginate. The sides of the sterna, the posterior coxe,

and the outer half of the metathoracic episterna are clothed with fine yellowish-grey

pubescence.

The pubescence is generally paler (almost white) in the male. The prosternum in

the male is densely punctured and finely pubescent; in the female it is more coarsely

punctured, the punctures more separate from each other, and there is no pubescence.

39. Agrilus socialis. (Tab. IV. figg. 20, 20a, 5.)

Supra eneo-viridis, subtus eeneus, nitidus ; capite cuprascente, creberrime punctato, longitudinaliter impresso ;

thorace tenuiter punctulato, transversim leviter bi-impresso; elytris crebre punctatis, maculis parvis aureo-

flavis ornatis, apice serratis.

Long. 63 lin.

Hab. Guatemaa, Cerro Zunil 4000 to 5000 feet (Champion).

The head has the punctuation rather strong, the punctures close together on the face,

slightly separated on the vertex; the impression in front is oblong-ovate, moderately

deep but not very well limited. The thorax is polished, the punctuation very fine and

indistinct on the disc, rather more distinct towards the sides; the disc is transversely

impressed in front and behind; the posterior ridge is curved, thickened at the base ;

there are slight coppery shades in some parts. The elytra have the subcosta well

marked; the sutural area is densely and rather roughly punctured, the subcosta is

nearly smooth, the surface near the shoulder and immediately outside the subcosta

finely and not very closely punctured, the punctuation becoming closer and stronger at

the sides and apex; each elytron has a very small golden spot just before the middle

(close to the suture), a rather larger one considerably behind the middle, and a small

one close to the apex. ‘The prosternal process is shining, with some rather strong

punctures which are not very close together. The metathoracic episterna are rather

closely and finely punctured. The abdomen is very finely punctured, the punctures not

very close together.

78 SERRICORNIA.

40. Agrilus acuductus. (Tab. IV. figg. 15, 15a, 0.)

Viridi-ceneo-metallicus, sat nitidus; thorace crebre sat fortiter punctato, transverse subruguloso, disco antice

et postice levissime foveolato, lateribus impressis subtilissime rugulosis, costula ad angulos posticos nitida ;

elytris post medium attenuatis, ad suturam late impressis, creberrime subtilius punctatis et transverse

subrugulosis, ad apicem cupreis, spinosis.

Long. 5-6 lin.

Hab. Guatemata, Capetillo (Champion).

The head has the punctuation strong; the punctures on the vertex rather close

together, those on the face crowded; there is a longitudinal impressed line on the

vertex, continued down the face to a little above the clypeus; on the middle of the

face there are two very slightly raised ovate spots. The face in some of the specimens ©

is green, in others it is «neous, with the clypeus coppery ; this is no doubt a sexual

character. The thorax has the punctuation rather strong, the punctures partially

confluent transversely, the interstices forming transverse and undulating ruge. The

elytra have the punctuation moderately fine and very close, and in some aspects the

surface appears to be finely rugulose; the subcosta is well marked; there are two very

small spines at the sutural apical angle, a longer one beyond this, and a very small one

at the outer angle. The abdomen has the sides not (or scarcely) visible above at the

sides of the elytra.

41. Agrilus denticulatus. (Tab. V. figg. 16, 16 a.)

Viridi-aeneus, subtus eneus, nitidus; thorace parum convexo, sat crebre punctato, basi medio fovea leviter

impressa; elytris crebre punctatis, ad apicem acuminatis, acute dentatis.

1611,

Long. 53-63 lin.

Hab. Mexico, Cordova (Sallé); Guatemaua, Capetillo (Champion).

The head is rather flat in front, closely rugose and green in the male, coppery and

irregularly punctured in the female. The thorax is moderately strongly punctured, but

the punctures are not very clearly defined, though generally distinctly separated from one

another; the fovea in the middle of the base is small and shallow; the posterior ridge

is rather thick at its base, fine anteriorly, directed inwards at first and then directed

forwards and very slightly outwards. ‘The elytra have the subcosta well marked but

much arched—it is sparingly punctured, the punctures closer together towards the

sides; the sutural area is moderately closely and strongly punctured; each elytron

has about seven acute teeth at the apex, the middle one being a little larger than the

others (fig. 16a). The prosternum in the male is densely and finely punctured ; in the

female it is shining and the punctures are well separated from each other. The meta-

sternum in the male is closely and very finely punctured in the middle; in the female

the punctures are very fine and well separated from one another. The metathoracic

episterna are shining and finely punctured on the inner side, clothed with yellowish

pubescence on the outer side. The abdomen is finely and not very closely punctured ;

the lateral carina of the basal segment is rectilinear posteriorly (fig. 16).

AGRILUS. 79

42. Agrilus nitidicollis. (Tab. V. figg. 15, 152.)

Elongatus, nitidus, neus, cuprascens; thorace sat lato, sparsim punctato, lateribus impressis pube flava

indutis ; elytris eruginosis, sparsim punctatis, ad apicem dilatatis divergentibus, vitta suturali enea (post

medium interrupta), confertim punctulata, flavo-pubescente ornatis ; pedibus abdomineque late cupreis, hoc

ad latera purpurascente, maculis albis ornato,

Long. 7 lin.

Hab. GuatTeMALA, Coban in Vera Paz (Conradt).

The head has an impressed median line, and is widely impressed in front, with a

transverse impression on each side of the face about the middle; the front is almost

smooth, the top is finely and sparingly punctured. The thorax is rather broad,

shining, sparingly punctured in the female (transversely striolate in the male), with

a slight median impressed line; the sides are somewhat angular about the middle;

the posterior ridge turns outwards and downwards, and joins the margin just beyond

the lateral angulation. The elytra are brownish- or greenish-bronze, with the apex

obscure purple; the subcosta is well marked at the sides of the sutural stripe; the

apices are divergent, somewhat dilated, obliquely and arcuately rounded on the inner

side and finely denticulate. The prosternal chin-piece is scarcely emarginate. The

prosternum is rather strongly and moderately closely punctured; the intercoxal process

nearly parallel, with smooth, slightly incrassate margins, suddenly very obliquely narrowed

atthe apex, leaving a central process at a slightly lower level. The episterna are finely

and moderately closely punctured, without pubescence. The abdomen is delicately

punctured, coppery, verging into purple-red at the sides, with a small white spot above

the basal segment and three oblique white stripes at the sides of the three terminal

segments; the lateral carina of the basal segment is deeply excised at the part occupied

by the white spot (fig. 15 a).

43, Agrilus observans. (Tab. V. figg. 17, 17a.)

A®neus, sat nitidus ; capitis vertice brunneo, thorace cyanescente; elytris cupreo-purpurascentibus, ad apicem

utrinque extus emarginatis.

Long. 2 lin.

Hab. Panama, Bugaba (Champion).

This very distinct species may be recognized by the apex of the elytra being cut out

on each side, leaving the central part angularly produced and finely serrate. The

head is rather flat in front; the lower part brassy and transversely rugose, the upper

part brown; the punctures rather strong but distinct from each other; the top obscure

brownish, indistinctly punctured. The thorax is marked with strongly impressed

curved striole; there is an almost imperceptible longitudinal impressed median line ;

the posterior ridge is fine, close to the margin, curved. The elytra are moderately

strongly but not very closely undulate-asperate; the apex of each is excised exteriorly

(fig. 17 a); the subcosta is very slightly indicated. The prosternal chin-piece is arcuate.

80 SERRICORNIA.

The prosternum is moderately closely punctured, the intercoxal process sparsely pubes-

cent, slightly convex in the middle, not distinctly margined; the apex very obtusely

angular, almost truncate. The abdomen is not very closely punctured, the intercoxal

process acutangular.

44, Agrilus bellus, (Tab. V. figg. 18, 18 a-c.)

Parum nitidus; capite cupreo, antice aurato, creberrime sat rugoso-punctato ; thorace obscure purpureo, trans-

versim irregulariter strigoso et ruguloso, medio leviter canaliculato, lateribus maculis duabus aureo-

pubescentibus ornatis ; elytris olivaceo-viridis, basi apiceque cuprascentibus, maculis nonnullis aureo-

pubescentibus ornatis, creberrime punctatis, lateribus ante medium rugosis, apice denticulato et spina

acuta armato.

Long. 33 lin.

Hab. Panama, Bugaba 800 to 1500 feet (Champion).

The head has a very faint impressed line down the front, terminating above the

clypeus in a very slight round impression; the vertex is irregularly striolate and

punctured, the intervals between the striole appearing as ruge. The thorax has the

irregular transverse rugee rather finer than the striole, these latter being finely but

not closely punctured ; the central channel is shallow, but well marked—it does not

extend to the front margin; the posterior ridge is distinct and smooth, rather straight

(fig. 18 a), and the impression inside of it is filled with golden pubescence, as is also the

lateral impression at the anterior angle. The elytra have the following golden-pubes-

cent spots :—one in the basal impression, an elongate one in the sutural area extending

to the middle, two elongate dashes near the apex (only slightly separated from each

other) in the sutural area, and an elongate spot at the side near the apex; the punctua-

tion is rather close but not crowded, and the punctures are somewhat stelliform ; each

elytron has a rather strong spine in the middle of the apex (fig. 18¢). The prosternum

is shining, the punctures fine but distinct, moderately close together ; rugose posteriorly.

The metathoracic episterna are closely punctured and clothed with golden pubescence

on the outer side, less closely punctured and bare on the inner side. The abdomen is

finely and not very closely punctured ; there is a yellow spot on the upper margin of

the basal segment, and a spot at the side of each of the apical three segments below ;

the lateral carina of the basal segment is nearly rectilinear posteriorly (fig. 18 0).

45. Agrilus spinicaudatus. (Tab. V. figg. 19, 19 ac.)

Elongatus, purpureo-niger, sat nitidus; thorace cyaneo-viridi, striolato et punctulato; elytris tenuiter rugosis,

in sutura vitta aureo-pubescente ornatis, singulo ad apicem spina acuta armato et denticulato (fig. 19 c);

abdomine pedibusque eeneis.

Long. 3 lin.

Hab. GuaTEMALA, Chacoj in Vera Paz (Champion).

The head is very gently convex in front, and nearly smooth, except for some punc-

tures at the base of the antenne; the top is lightly impressed in front, longitudinally

AGRILUS. 81

striolate and finely punctured. The thorax is convex, blue-green, shining, slightly

and gradually narrowed at the base; the disc with a feeble impression in front and

another at the base; the lateral impression is well marked, with some white pubes-

cence at the anterior angle; the posterior ridge is fine but distinct, close to the margin,

nearly straight when viewed from above (fig. 19 a, lateral view). The prosternal chin-

piece is gently arcuate. The prosternum is closely and finely punctured, flat between

the coxe and finely margined laterally. The abdomen is very finely and not very

closely punctured ; the lateral carina of the basal segment alters its direction posteriorly

(fig. 19 6).

46. Agrilus adjunctus.

Brunneo-cupreus, parum nitidus ; thorace transversim ruguloso; elytris confertim sat fortiter asperatis ;

antennis femoribusque anticis antice eeneis.

Long. 4 lin.

Hab. Mexico, Jalapa (Hége).

This species has the colour and general appearance of the European A. sinuatus, but

is narrower, more attenuated posteriorly, and the elytra have the subcosta well marked,

and have a distinct spine at the apex. ‘The head is somewhat dull, very closely and

distinctly punctured ; the face is longitudinally impressed in the middle, and has a very

slight oblong swelling on each side. The thorax is closely rugulose, and has some

coarse punctures at the anterior margin; there is an inconspicuous, narrow, lanceolate

impression at the base; the lateral impression is shallow and not well marked ; there

is some whitish pubescence at the anterior angles; the posterior ridge is fine, smooth,

and curved down to meet the margin near the middle—it is somewhat interrupted at

the base by the uneven surface. The elytra have the subcosta obtuse but well marked

and reaching to the apex. The prosternum is densely rugose. ‘The episterna are

clothed with fine pale grey pubescence, and the pubescence extends also on to the sides

of the metasternum and base of the metathoracic episterna; the latter are closely

punctured and slightly rough posteriorly. The abdomen is finely and not very closely

punctured ; there is a small spot of pale pubescence in an impression about the middle

(somewhat removed from the side); and an elongate spot at the side of the second and

third segments.

47, Agrilus gracilipes.

Obscure aureo-eneus, sat nitidus; thorace transyversim strigoso, ad angulos posticos linea elevata recta nitida

instructo ; elytris rugulosis, apice parum ampliato, denticulato, cupreo-tincto ; pedibus gracilibus.

Long. 33 lin.

Hab. Mexico, Oaxaca (Hoge); Costa Rica, Volcan de Irazu (Rogers); Panama,

Volcan de Chiriqui 3000 to 4000 feet (Champion).

The front of the head in the male is somewhat golden-green, dull, extremely finely

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, Apral 1889. MW

82 SERRICORNIA.

rugulose, with a few minute shining granules; the sculpture of the clypeus is rather

coarser ; in the female the front is slightly coppery, less dull and with the shining

eranules more distinct; the top of the head is finely longitudinally strigose. The

thorax has the extreme lateral margins coppery; in the middle of the base there is a

slight triangular impression; the surface is transversely strigose ; the strie are closer

together at the base than in front, where they are curved; the posterior ridge is

strongly marked, nearly straight (viewed from above), and terminates abruptly rather

before the middle. The elytra have the subcosta distinct to near the apex; the

surface is almost uniformly asperate; the sutural impression has some very short

inconspicuous golden pubescence ; before the middle the pubescence is thicker and

forms a not very conspicuous elongate spot. ‘The underside of the insect is clothed

with pale grey pubescence, except the abdomen. ‘The prosternum is closely and finely

rugulose in the male, rather coarsely rugose and less pubescent in the female. ‘The

metathoracic episterna are closely and finely punctured; and pubescent, except the

inner border. The abdomen is shining, with the punctuation very fine and not close.

48. Agrilus carinifer.

Elongatus, brunneo-cupreus, parum nitidus, rugosus; capite antice planato; thorace basi sat angustato ;

elytris regione suturali eneo suffuso, parce griseo-pubescente, ad apicem parum divergentibus, singulis

acuminato-serrulatis. ¢ capite antice femoribusque viridibus.

Long. 4—43 lin.

Hab. Mexico, Cordova (Sallé), Oaxaca (Hége); GuatTeMALa, Coban in Vera Paz

(Conradt).

The head is densely and finely rugose in the male, with numerous shining points; in

the female it is more coarsely rugose. The thorax is convex, nearly parallel at the

sides, but suddenly narrowed at the base; rugose, with curved ruge on the disc; there

is a very slight impression in the middle of the base; the posterior ridge is very

well marked, shining, nearly straight when viewed from above. ‘The elytra are rather

strongly rugose, except near the apex where the sculpture is finer, becoming coarse

again at the extreme apex; the subcosta is well marked; the sutural region is sparsely

pubescent, the basal half suffused with green; the apex is very slightly dilated, each

elytron being obliquely truncate on the inner side and on the outer side so that the

apex is angular. ‘The prosternal chin-piece is much rounded in front, and, with all the

sterna and base of the abdomen, densely and finely punctured and clothed with pale

grey pubescence. The inner half of the metathoracic episterna is less densely punc-

tured and less pubescent. ‘The apical portion of the abdomen is shining, very delicately

and not closely punctured. ‘The posterior tibie are linear, with a very fine even fringe

of short hair on the apical half of the upper edge.

AGRILUS. 83

49. Agrilus molestus. (Tab. V. figg. 20, 20 a—c.)

4Eneus, parum nitidus ; capite antice obscure cupreo, rugoso, clypeo macula triangulari flavo-pilosa impresso ;

thorace irregulariter transversim vermiculato-strigoso, margine antico cupreo, disco bi-impresso, lateribus

antice flavo-pubescentibus ; elytris sat fortiter rugosis, maculis sex aureo-pubescentibus ornatis, apice

acuminato, denticulato.

14:

Long. 34 lin.

Hab. Panama, Tolé (Champion).

The front of the head is very slightly convex ; the triangular impression above the

clypeus extending to about the middle; when viewed from the front a very slight

impression may be seen at the upper part of the face, but it is not visible from above.

The thorax has the sculpture consisting of numerous short (more or less transverse)

curved lines, crossed at intervals by some finer oblique striole; of the two impres-

sions on the disc the posterior one is the larger and deeper—in some lights they appear

confluent ; the posterior ridge is near the side, and it is curved outwards and downwards

to meet the margin about the middle (fig. 20q@). ‘The elytra have the subcosta very

little raised ; the pale golden-yellow spots are in the sutural area—the first extends

from the base to about one third the length of the elytron, the second is considerably

behind the middle, and the third is linear at the apex; the apices are angular (fig. 20 c).

The metathoracic episterna are closely punctured and pubescent. The sides of the

sterna are clothed with pale golden-yellow pubescence, and there is a spot of the same

colour on the upper margin of the basal segment of the abdomen, and a spot at the

side of the second and of the third segments. The lateral carina of the basal segment

of the abdomen is sinuate about the middle (fig. 20 0).

50. Agrilus bicarinatus.

Cuprascens ; capite crebre punctato, antice suleato ( g viridi); thorace convexo, transversim ruguloso, medio

sulcato, angulis posticis carina nitida distincta fere recta instructis; elytris olivaceo-tinctis, maculis sex

griseis minus distinctis ornatis ; pectore griseo-pubescente ; abdominis segmentis secundo tertioque macula

flavo-grisea parum distincta ornatis.

Long. 3 lin. .

Hab. Mexico, Atoyac in Vera Cruz (HZ. ZH. Smith), Juquila, Oaxaca (Sallé) ;

GuaTEMALA, Chacoj and Teleman in Vera Paz, Zapote (Champion).

This species much resembles A. molestus ; but it has the spots on the elytra somewhat

differently placed, and is at once distinguished by having the posterior ridge of the

thorax directed straight forwards instead of curved outwards. ‘The head is slightly

convex in front, rather less so in the male than in the female, strongly and closely

punctured in the female, the punctures arranged in curved lines on the vertex; in the

male the punctuation of the front is finer, and the surface less shining; at the

top of the face there is a somewhat deep impression which is continued down the

face as a slight channel. The thorax is somewhat narrowed before the base, the

posterior angles slightly diverging; the channel in the middle is well marked and

34 SERRICORNIA.

continuous ; the posterior ridge is very distinct—after turning a little from the hind

angles it is directed straight forwards, stopping abruptly about the middle of the length

of the thorax. The elytra are asperate-punctate, but not so densely as in A. molestus ;

the subcosta is well marked; each elytron has three not very distinct greyish-yellow

spots—one at the base, the second elongate, its posterior part at the middle of the

elytra, and the third slightly oblique, halfway between the second and the apex; the

apex is reddish-coppery and shining (some examples, however, scarcely show this), and

its margin is finely denticulate. The prosternal chin-piece isrounded. The prosternum

is finely punctured, the punctures not crowded; the intercoxal process is rather flat.

The metathoracic episterna have the outer third finely punctured and pubescent, the

rest smooth and shining. The abdomen is finely and not very closely punctured.

51. Agrilus subguttatus.

/ineus, depressus, parum nitidus ; capite crebre punctato, antice planato, ¢ viridi; thorace transversim crebre

ruguloso, punctulato; elytris equaliter asperato-punctatis, maculis quatuor parum conspicuis griseis

ornatis.

1 14

Long. 23-23 lin.

Hab. Muxico, Misantla, Oaxaca (Hoge), Cordova, Juquila (Sailé).

The head in the male is light green in front, dull and extremely finely rugose, as if

frosted ; in the female the sculpture is coarse, consisting of irregular, curved, and wavy

ruge, ‘The thorax is convex, with no impressions on the disc; the posterior ridge is

very distinct, shining, nearly straight. ‘The elytra are rather flat, with the subcosta not

very distinct ; each elytron has an oblong yellowish-grey pubescent spot just before the

middle and an ovate spot a little nearer to the apex than to the first spot, and the

apex oblique inside and outside and finely serrate. The prosternal chin-piece is

rounded. ‘The prosternum is closely and finely (slightly roughly) punctured, and

somewhat pubescent. The metathoracic episterna are finely punctured and pubescent,

with the posterior angle smooth and shining. The abdomen is delicately and not very

closely punctured. |

The male examples have the spot at the middle of the elytra much less distinct than

in the female.

52. Agrilus errans.

Olivaceo-eneus, parum nitidus; capite antice viridi ( ¢ ) vel cuprascente ( 2 ), ruguloso et punctato; thorace

undatim striolato et punctato; elytris crebre asperatis, maculis duabus pallidis pone medium notatis.

Long. 25 lin.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

The front of the head in the male is golden-green, rather flat, densely and extremely

finely rugose, with some fine punctures scattered over the surface; in the female it

is coppery, and similarly finely rugose, but the surface is marked with undulating

AGRILUS. 85

coarsely punctured striole. The thorax is marked with closely placed, strongly punc-

tured, wavy impressed lines; the posterior ridge is not very well marked, short, rather

straight, directed forwards, and does not join the lateral margin anteriorly. The elytra

are reticulate-asperate ; the subcosta is distinct but it does not extend to the base or

apex, the sutural area being convex at the base and apex ; each elytron has a not very

distinct spot of silvery-grey pubescence at some distance from the apex (close to the

suture), and at the middle a still less distinct spot. The prosternum is finely rugose,

sparsely covered with silvery pubescence in the male, almost without pubescence in the

female. The metasternum and abdomen are distinctly and not very closely punctured,

almost without pubescence.

Specimens from Duefias in Guatemala, which appear to be referable to this species,

vary from 2% to 24 lines in length.

53. Agrilus affinis.

Olivaceo-eeneus, parum nitidus; thorace undatim striolato et punctato; elytris crebre asperatis, pube brevi

pallida vestitis, macula communi pone medium calva; abdominis segmentis secundo et tertio macula parva

alba ornatis.

1_93 ]j

Long. 24-22 lin.

Hab. Guatemata, Duefas (Champion).

This species is very close to A. errans, and it is only after very careful examination

that I venture to separate it; both species were in some cases mounted on the same

card. It differs in having the elytra sparsely clothed with very short pale pubescence,

leaving an elongate bare spot just behind the middle, common to both elytra ; above

this spot and below it the pubescence is more dense, and indistinct spots are formed

representing those in A. errans. The abdomen has a small whitish pubescent spot at

the side of the second and third segments, which is not present in A. errans. The

character, however, which is the most important is the posterior ridge of the thorax,

which is well marked (though fine) and directed obliquely inwards, instead of being

directed forwards as in A. errans.

54, Agrilus pectoralis.

Eneo-cupreus, sat nitidus; capite antice levissime convexo, subtiliter rugoso, pallide griseo-pubescente ;

thorace oblique striolato, disco obsolete canaliculato; elytris reticulato-striolatis, maculis sex pallidis

ornatis ; metasterno lateribus albo-pubescentibus ; abdominis segmento basali supra macula laterali alba

notato.

Long. 13-2 lin.

Hab. Mexico, Northern Sonora (Morrison).

The head is very gently convex in front and very finely and closely rugose, clothed

with silvery-white pubescence, which radiates from a spot situated above the middle ;

the top is convex, longitudinally striolate, the striole punctured, and has a very

lightly marked median impressed line. The thorax is convex anteriorly, flatter

86 SERRICORNIA.

posteriorly ; narrowed at the base, gently arcuate at the sides anteriorly ; the surface is

marked with moderately closely placed oblique (gently curved) punctured striole; there

is a very slightly impressed median line, but it is only visible in some lights; the

pubescence is very sparse, except in the lateral impression, where it is more conspicuous ;

the posterior ridge is short and inconspicuous and does not extend to the margin.

The elytra are reticulate-striolate, very slightly asperate at the base; the subcosta is

very little raised, obtuse, and sculptured like the rest of the surface; each elytron has

three pale yellowish-grey spots—the first in the basal impression, the second‘ elongate,

just before the middle, and the third elongate-elliptical, placed at a little distance from

the apex. The prosternal process is very closely and finely punctured and pubescent.

The metasternum hasa broad stripe of white pubescence at the sides. The meta-

thoracic episterna are moderately closely punctured, with some white pubescence on the

outer half. ‘The abdomen has a conspicuous elongate white spot on the upper margin

of the basal segment; the surface below is distinctly but not very closely punctured,

each puncture having a very short pale hair; there is an inconspicuous spot at the

side of each of the three terminal segments.

55. Agrilus addendus.

Agrilus addendus, Crotch, Proc. Ac. Phil. 1873, p. 95°.

/lab. Nortu America, Texas (Belfrage!).—Mexico, Northern Sonora (Morrison).

This species resembles A. detractus, but the head is longitudinally impressed in front ;

and the dorsal channel on the thorax is scarcely marked, and the carina is not directed

inwards. In the examples in the British Museum, received from Crotch, and in

those from Sonora, there is an elongate spot just before the middle of the elytra;

the author of the species only mentions! the spots at the base and near the apex of

the elytra.

56. Agrilus detractus.

Obscure cupreus, surdus; capite antice pube pallide grisea vestito; thorace subtiliter punctato, transversim

tenuiter ruguloso, medio leviter canaliculato, lateribus pube pallide flavo-grisea indutis; elytris subtiliter

asperatis, in regione suturali maculis obscuris sordide flavis ornatis.

Long. 23-3 lin.

Hab. Mexico, Chilpancingo in Guerrero (H6ge).

The head in the male has the front obscure green, dull, the sculpture excessively fine ;

in the female it is more coppery, less dull, finely rugose, with a shallow round impression

at the upper part. The thorax has the median channel rather narrow, distinct, but not

very deep, a little less distinct in the middle; the posterior ridge is straight, well

marked, fine, and shining, directed obliquely inwards. The elytra have the close aspe-

rate sculpture somewhat fine and even; the subcosta is obtuse, but distinct for the

AGRILUS. 87

whole length of the elytra, although rather less distinct posteriorly in the female; each

elytron has a spot of dirty yellow pubescence in the basal impression, a short streak at

the middle (sometimes broken into two small spots), and a small spot at some distance

from the apex. All the underside of the insect is sparingly clothed with short fine

pale grey pubescence, which, however, is more dense at the sides of the abdomen, but

scarcely forms spots. The prosternum is densely and very finely rugose; finer in the

male than in the female. The anterior and intermediate femora are obscure green in

the male. |

57. Agrilus quadrinotatus.

Agrilus quadrinotatus, Gory, Mon. iv. p. 283, t. 38. f. 224°.

Hab. Mextco4, Cuernavaca (Sallé), Chilpancingo in Guerrero (/ége).

58. Agrilus uniformis.

Obscure viridis, parum nitidus, capite antice planato, leete viridi, elytris olivaceo-viridibus ; thorace leviter con-

vexo, transversim confertim tenuiter ruguloso; elytris confertim tenuiter asperatis; pectoris lateribus

griseo-pubescentibus.

Long. 22 lin.

Hab. Mexico, Cordova (Sadlé) ; Nicaracua, Chontales (Belz).

This is a moderately narrow species, gradually attenuated posteriorly. The head is

very flat in front and extremely finely granular; the vertex is unusually smooth, with

some extremely fine punctures. The thorax is evenly convex, with an indication of a

longitudinal median impression, only visible in some lights; the posterior ridge is fine

but distinct, shining, directed forwards, very slightly curved. The elytra have the

subcosta distinct but obtuse, nearly straight, gradually approaching the suture at the

apex; the apex of each elytron is obliquely truncate inside and outside. The prosternal

chin-piece is distinctly emarginate. The prosternum is not very closely punctured.

The episterna have the outer half clothed with greyish-white pubescence; the inner

half is smooth, with some very fine punctures. The abdomen is finely and not very

closely punctured, except at the side of the basal segment, where the punctuation is

close; there is a sparsely pubescent spot near the side of the basal segment.

The example from Chontales is of a brighter green than those from Cordova.

59. Agrilus hilaris.

Supra nigro-seneo-virescens, parum nitidus, subtus eneus nitidus; capite antice planato, subsurdo, crebre

subtiliter punctulato, zeneo-viridi vel cupreo; thorace transversim ruguloso, obsolete punctulato, basi medio

leviter impresso ; elytris tenuiter asperatis, maculis sex (vel octo) flavo-griseis ornatis, ad apicem attenuatis,

serratis.

Long. 24-8 lin.

Hab. GuaTEMALA, Pantaleon 1700 feet (Champion), Panzos in Vera Paz (Conradt). |

88 SERRICORNIA.

This is a very dark-coloured species, appearing almost black in some lights, or bluish-

green. The thorax has the posterior ridge very short and not conspicuous ; it is directed

inwards at first, but turns forwards and outwards anteriorly. Each elytron has an elongate

basal impression, which is partly filled with dirty yellow pubescence ; there is an elongate

pubescent spot just before the middle in a well-marked impression, a lanceolate spot

behind the middle, and a narrow line at the apex. The prosternal chin-piece is arcuate.

The prosternum is finely punctured and clothed with grey pubescence, transversely

impressed below the chin-piece; the intercoxal process is slightly concave, margined

laterally. The metathoracic episterna are closely and finely punctured and pubescent,

with a very small smooth spot at the posterior angle. The abdomen is finely and not

very closely punctured; the basal segment has a well-marked impression at a little

distance from the sides filled with white pubescence, and the following segments have

each a white spot near the margin. The posterior femora are rather incrassate.

60. Agrilus cerinoguttatus.

Agrilus cerinoguttatus, Chevr. Col. Mex. Cent. ii. fasc. 6, no. 142 (1835).

Hab. Mexico}, Tuxtla (Saldé).

f . ‘

4A. Agrilus sublateralis. (Tab. V. figg. 21, 214, 4.)

Anéus, nitidus, capitis vertice pronotoque fere nigris, elytris purpureis; capite longitudinaliter sat fortiter

impresso, et in medio fovea magna transversa; thorace punctato, medio longitudinaliter fortiter impresso,

impressione ante medium paullo angustata, angulis anticis macula pallide flavo-pubescente ornatis ; elytris

creberrime punctatis, ad apicem angustatis, denticulatis.

Long. 6 lin.

Hab. Mzxtico, Cordova (fHége).

The head is closely punctured ; the transverse impression in the middle of the front

extends nearly from one eye to the other. ‘The thorax has moderately strong, transverse

(sometimes elongate) punctures, placed close together in the discoidal impression, more

separated on the raised parts, a small spot on each side of the impression in front almost

smooth; the posterior ridge is scarcely raised at the base, but becomes more distinct

at a short distance from it, curving outwards and downwards anteriorly (fig. 21 a).

The elytra have the subcosta very obtuse and straight (not sinuous posteriorly as is often

the case), with some fine scattered punctures ; the punctures on the rest of the surface

are rather strong, close together in the sutural area, more separated at the sides, but

frequently arranged in short transverse lines. The prosternum is shining, and the

punctures very irregular in shape and position. The abdomen is finely punctured, the

punctures not very close together; on the basal segment there is (at some distance from

the side) a stripe of very pale yellow pubescence, and on the following three segments

there are spots similarly placed; the basal segment has at its base an elongate yellow

spot on the upper surface. The lateral carina is rectilinear posteriorly (fig. 21 0).

AGRILUS. 89

62. Agrilus coxalis.

Aineus, parum nitidus, pronoto cyaneo-eneo, elytris brunneo-eneis postice purpurascentibus; capite antice

confertim rugoso-punctato, fronte medio impressa; thorace confertim tenuiter punctato et subruguloso,

disco leviter bi-impresso, angulis anticis macula alba ornatis ; elytris confertim subasperato-punctatis,

maculis sex fere albis ornatis; prosterno crebre rugoso-punctato ; abdomine sat crebre punctato, segmentis

ad latera supra flavo-maculatis.

Long. 44-5 lin.

Hab. Mexico, Juquila (Sallé), Cordova (Hoge); GuatTemad, San Gerdnimo, Capetillo

(Champion).

The head varies very much in colour in the different individuals; it is generally

brassy-green or bluish-green in front, much darker on the vertex. The thorax has the

discoidal impressions distinct but shallow, subconfluent; the posterior ridge is well

marked, smooth, nearly straight, terminating abruptly before the middle of the side.

The elytra are flat on the back, the suture not raised except at the apex; the subcosta

is not well marked: each elytron has three pale yellow or white pubescent spots—one

in the basal fovea, another at the middle, the third between the second and the apex;

there is also a little pubescence along the suture at the apex. The mesothoracic epimera,

the outer half of the metathoracic episterna, and the posterior coxe are clothed with

yellow pubescence. The abdomen has some extremely short fine pubescence ; towards

the sides of the second and third segments the pubescence is a little more distinct, but

scarcely forms spots. The spots on the upperside of the segments are elongate; that

on the basal segment is generally the only one visible from above. ‘The metathoracic

episterna are closely punctured.

63. Agrilus robustus.

Sat brevis, crassus, cupreo-brunneus, supra surdus, subtus nitidus; capite antice subplanato, confertim sub-

tiliter rugoso-punctato, linea mediana leviter impresso; thorace transversim creberrime ruguloso et

punctulato, medio sulcato; elytris confertim asperatis, guttis quatuor parvis inconspicuis notatis ;

femoribus sat incrassatis ; corpore subtus sparsim griseo-pubescente.

Long. 3-33 lin.

Hab. Nicaraeva, Chontales (Belt).

The thorax has the median channel rather narrow, moderately deep, not quite

reaching the base or anterior margin; the posterior ridge is well marked, straight,

somewhat removed from the margin, directed straight forwards. The elytra have the

subcosta fairly well marked ; each elytron has traces of two small spots, one at about

a third from the base, scarcely noticeable, the other rather less than a third from the

apex. The prosternal chin-piece is rounded in front, with an almost imperceptible

sinuosity in the middle. The prosternum is densely punctured. The metathoracic

episterna are not very densely punctured, sparsely pubescent. ‘The abdomen is not very

densely punctured, except at the sides of the basal segment. The legs have the femora

rather unusually thick, especially the anterior.

BIOL, CENTR.-AMER., Coleopt., Vol. III. Pt. 1, April 1889. N

90 SERRICORNIA.

64. Agrilus scabrosus.

Sat crassus, eneus, parum nitidus; capite creberrime punctato, medio canaliculato ; thorace transversim sub-

quadrato, transversim fortiter ruguloso, medio leviter canaliculato; elytris confertim rugosis, brevissime

parce sordide flavo-pubescentibus; abdominis segmento basali carina laterali medio angulata, segmento

secundo macula sordide flava ornato.

Long. 43 lin.

Hab. Mexico, Cuernavaca (Sal/é).

This species somewhat resembles A. perlucidus, but is at once distinguished by the

angulated lateral carina of the basal segment of the abdomen &c. The thorax is rather

straight at the sides, evenly convex, narrowly impressed laterally, with no posterior

ridge or swelling ; the transverse or oblique ruge are strong and close; the median

channel is narrow, distinct but not deep; the surface is slightly pubescent. ‘The elytra

have the subcosta very indistinct, except about the middle; the pubescence is a little

congested near the suture behind the middle, but scarcely forms a spot; the apex of

each is narrow and rounded, finely serrulate. ‘The prosternal chin-piece is nearly

straight infront. The prosternum is rugose, slightly pubescent ; the intercoxal process

with its margins slightly raised, the apex a trifle widened and truncate. ‘The episterna

are closely punctured, with a little pubescence on the outer half. The abdomen is

finely punctured ; the lateral carina of the basal segment strongly angulated about the |

middle, pubescent above; the second segment with a distinct whitish pubescent spot at

the side.

65. Agrilus major.

Crassus, subparallelus, supra subdepressus, cupreus, subtus eneus; thorace medio sulcato, crebre ruguloso,

lateribus viridi-auratis ; elytris rugosis, maculis rotundatis quatuor ochraceis notatis, apice serrulato.

Long. 5-52 lin.

Hab. Mexico, Tacambaro (Hége), Amula in Guerrero 6000 feet (H. H. Smith).

The head is slightly flattened in front, rugulose; with a longitudinal median impres-

sion, which is rather widened on the vertex. The thorax is coarsely rugulose, the ruge

curved; the median impression is moderately deep, subparallel; the posterior ridge is

represented by a narrow swelling ; the sides are greatly arcuate, slightly sinuate before

the hind angles; the lateral impression is slight. The elytra are rugose; the subcosta is

scarcely indicated ; each has a round yellow spot just before the middle, and another at

one third from the apex; the apex is oblique on the outside and finely serrulate. ‘The

prosternal chin-piece is very slightly arcuate. The prosternum (and metasternum) is

closely and coarsely rugose-punctate ; the intercoxal process is broad and parallel, nearly

truncate at the apex, a little advanced in the middle; sparsely pubescent. ‘The episterna

are coarsely and closely punctured, shining, with a little pubescence on the outer margin.

The abdomen is rather strongly punctured; the lateral carina of the basal segment is

distinctly angular about the middle, with a pubescent spot above. The whole of the

AGRILUS. 9]

underside is slightly pubescent, and at the sides of the abdominal segments the pubes-

cence is somewhat more dense and forms vague spots. —

66. Agrilus bi-impressus.

Aneus, nitidus, subtus nigro-eneus; capite convexo, sat lato, vertice striolato, antice fortiter punctato, inequali

(sicut granuloso), foveola perparva medio impresso; thorace basi paullo angustato, crebre punctato, haud

ruguloso, disco bi-impresso ; elytris crebre tenuiter asperatis, pube grisea brevissima vestitis.

Long. 2 lin.

Hab. Mexico, Acapulco and Iguala in Guerrero (Hége).

The thorax has the two impressions on the disc very well marked, the front one

very small, the posterior one larger and round; the posterior ridge is very distinct,

directed obliquely inwards. ‘The elytra have the subcosta fairly well marked, but very

obtuse; the sutural region has indications of two very slight impressions, one before,

the other behind the middle. The prosternal chin-piece is slightly but distinctly

emarginate. The prosternum is finely punctured, shining, the punctures not crowded

together. The metathoracic episterna are sparsely clothed with white pubescence.

The abdomen is moderately strongly punctured, the punctures nct crowded, generally

united transversely by fine striole.

One example has the head obscure green in front.

67. Agrilus mexicanus. |

Agrilus mexicanus, Gory, Mon. iv. p. 267, t. 45. f. 2621. f/u |,

Hab. Mexico}.

68. Agrilus basilaris.

Subtus eneus, nitidus, supra subsurdus; capite versicolore; thorace transversim ruguloso, antice cupreo-

purpurascente, postice enescente cupreo-vario ; elytris eneo-prasinis, basi cupreis, crebre undatim asperatis,

vitta suturali pallide luteo-pubescente, apice denticulato.

131 |i

Long. 21-33 lin.

Hab. Panama, Bugaba (Champion).

The head is densely and extremely finely rugose, and with some rather strong and

moderately close punctuation; the upper part of the face has some longitudinal lines ;

the top of the head is dark purple; the upper part of the face is dark steel-blue, below

which there is a transverse coppery-red line; the clypeus is golden-green ; there is an

impressed line down the middle of the face. The thorax is dark purple (or dark green)

in front, coppery-red at the base; the surface is covered with curved, undulating, im-

pressed, punctured lines; the posterior ridge is well marked and sharp, nearly straight, and

not. curved down anteriorly to meet the margin. The elytra have the subcosta moderately

well marked; the surface is closely asperate, caused by the transverse dentate impressed

‘striole. The prosternum is closely punctured, slightly pubescent. ‘The metasternum

N 2

92 SERRICORNIA.

is not very closely punctured. The episterna are finely and not very closely punctured

on the inner half, clothed with whitish pubescence on the outer half. The abdomen

is finely and not very closely punctured ; with a patch of dense fine punctuation at the

side of the basal segment.

69. Agrilus femoralis. (Tab. V. figg. 22, 22 a, d.)

Elongatus, subparallelus, supra purpureo-niger, parum nitidus, subtus cupreo-sneus, nitidus, pube alba ornatus ;

capite antice eneo-viridi, subtiliter punctulato, longitudinaliter sat late sulcato, supra clypeum macula

pallide flava ornato; thorace elongato, convexo, crebre punctulato, transversim ruguloso, medio sat

profunde sulcato, lateribus linea flava ornatis; elytris postice parum angustatis, creberrime subtiliter

punctatis, vitta suturali (post medium interrupta) flavo-pubescente ; antennis longis ; femoribus posticis

incrassatis, tibiis curvatis, tarsis longissimis.

Long. 32 lin.

Hab. Guatemata, Panzos in Vera Paz (Champion).

The head has the impression on the front of the forehead deep, the space on each

side of it raised and prominent when viewed from above; the antenne are long

(fig. 22a). The thorax has the longitudinal median channel extending from the base

almost to the front margin; the posterior ridge is very indistinct and close to

the margin (fig. 226). The elytra have the subcosta distinct at the middle but

obliterated posteriorly ; the sutural stripe of yellow pubescence is indistinct behind

the middle, very narrow at the apex; the apex is obliquely rounded off on the outside,

slightly emarginate at the sutural angle, the margins almost smooth. The prosternal

chin-piece is gently emarginate. The prosternum is densely and finely punctured and

clothed with white pubescence; the intercoxal process is flat, margined laterally. The

metathoracic episterna are finely punctured, pubescent on the outer half. The posterior

coxe are clothed with yellow pubescence. ‘The abdomen has the basal segment longi-

tudinally impressed in the middle, the impression filled with white pubescence, and

near each side there is transverse impression also filled with white; the second segment

has a round white spot near the side; the upper margins of the segments are clothed

with pale yellow pubescence, except the apical half of the basal segment. ‘The posterior

tibie are gently curved, compressed towards the apex, the inner side gently emarginate

for three quarters the length.

70. Agrilus antennatus.

Elongatus, parum nitidus; supra purpureo-niger, wnescens, subtus seneus, nitidus; capite antice viridis, sat

planato, creberrime rugoso, vertice foveola elongata impresso; antennis longis; thorace elongato, crebre

obsolete punctulato et ruguloso, disco antice transversim leviter impresso, postice leviter foveolato, late-

ribus pube flava ornatis; elytris creberrime subasperato-punctulatis, vitta suturali (post medium inter-

rupta) pallide flava.

Long. 3 lin.

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith, April 1888).

The head viewed from above is gently arched in front, finely longitudinally striolate ;

AGRILUS. | 93

the antennz are very long and slender, even more so than in A. femoralis. The

thorax has the posterior ridge very fine but distinct, directed forwards. The elytra

have the subcosta fairly well marked and continued nearly to the apex; the sutural

stripe (completely interrupted behind the middle) is of nearly equal width throughout ;

the apex of each elytron is rounded and finely serrate. The prosternal chin-piece is

gently emarginate. The prosternum is densely and finely punctured and pubescent, but

the pubescence being rather dark and very fine it is not very conspicuous; the intercoxal

process is flat, with a very faintly raised median line. The abdomen is finely and not

very closely punctured.

71. Agrilus sobrinus.

Elongatus, angustus ; supra olivaceo-viridis, parum nitidus, subtus eneus, nitidus; capite antice sat planato,

viridi-aurato, crebre sat fortiter rugoso; antennis longis; thorace hic et illic purpureo-tincto, lateribus

aureo-marginatis, disco medio linea impresso; elytris creberrime subasperato-punctatis, vitta suturali

parum conspicua pallide flava; femoribus posticis paullo incrassatis, tibiis sat gracilibus, tarsis longis-

simis,

Long. 3 lin.

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith, April 1888).

The head is longitudinally striolate at the vertex; when viewed from above it is

convex in front, with a slight median impressed line; the antenne are green at the

base, nearly black at the apex, not quite so long as in A. femoralis. The thorax is

transversely finely rugulose; the sides are golden, with a line of coppery above the

golden ; the median line is narrow, almost interrupted in the middle; the posterior

ridge is well marked, shining, straight, and directed obliquely inwards. ‘The elytra are

scarcely widened behind the middle; the subcosta is fairly well marked, but does not

reach the apex; the apex of each elytron is obliquely truncate inside and outside,

finely serrate. The prosternal chin-piece is gently emarginate in the middle. The

prosternum is closely and finely punctured, with scarcely any pubescence; the inter-

coxal process has its margins raised. ‘The metathoracic episterna are finely punctured,

slightly pubescent. The abdomen is finely and not very closely punctured ; the basal

segment is densely punctured at the sides.

72. Agrilus cephalotes. (Tab. V. figg. 23, 23 a, 0.)

Elongatus, sneus, nitidus ; capite antice virescente, creberrime sat fortiter punctato ; thorace convexo, postice

paullo angustato, crebre fortiter punctato, transversim subruguloso, disco antice levissime transversim

impresso, medio subcanaliculato; elytris crebre asperatis, postice nigrescentibus, attenuatis, vitta suturali

griseo-pubescente, apice denticulato.

Long. 3 lin.

Hab. Mexico, Acapulco in Guerrero (Hége).

This species has the head rather wider than is usual; the face is rather flat, the

lower part covered with very short silvery-grey pubescence. ‘The thorax is coarsely

94 SERRICORNIA.

punctured, the intervals appearing like ruge in some lights; the median channel js

tolerably well marked, but it does not reach the front margin ; the posterior ridge is close

to the margin, scarcely visible from above—when seen sideways, it is distinct, curved

down to the margin about the middle (fig. 23a). The elytra have the subcosta fairly

well marked ; the sutural stripe is not conspicuous, but it extends from the base to the

apex; the apex is denticulate, one tooth being a little longer than the others. The

whole of the sternum is sparsely clothed with pale grey pubescence. The prosternal

chin-piece is short, nearly straight. The prosternum is closely and finely punctured ;

the intercoxal process is nearly flat, with smooth lateral margins, very obtusely angular

at the apex. The episterna are finely punctured and pubescent. The abdomen is

finely and not very closely punctured; the intercoxal process obtusely angular ; the

basal segment convex, with a stripe of pubescence at some distance from the side ; the

second and third segments with a slight spot at the side; the lateral carina is slightly

angulated behind the middle (fig. 23 6). The basal joint of the posterior tarsi is not

very long.

73. Agrilus temeratus. (Tab. V. figg. 24, 24a, d.)

Niger, nitidus; capite convexo, ruguloso, antice fovea parva impresso; thorace convexo, ruguloso, medio

sulcato, angulis posticis carina obliqua valida instructis ; elytris rugosis, sub humeris compressis, maculis

eeneis griseo-pubescentibus ornatis, apice denticulato.

Long. 24 lin.

Hab. Mexico, Cordova (Sallé),

The head has a small impression just above the clypeus. The thorax is rather long,

advanced in the middle of the front margin, very gently arcuate at the sides, almost

straight behind; convex, impressed at the base; rugulose, the ruge close and various

in their directions ; the median channel is deep and narrow; the posterior ridge is

shining and sharply defined, straight, directed obliquely inwards to a little beyond the

middle of the length of the thorax (fig. 24a). The elytra have no defined subcosta,

but are rather impressed about the middle; each elytron has a quadrate eneous spot

near the suture at one quarter from the base, an oblong one about the middle, and an

oblique, rather broad fascia at a short distance from the apex, all clothed with silvery

pubescence; the apex is obliquely truncate inside and outside, and finely but

distinctly denticulate. The prosternal chin-piece is almost imperceptibly emarginate.

The prosternum is coriaceous, with numerous transverse punctures; the intercoxal

process is gradually acuminate posteriorly. ‘The episterna are slightly pubescent on

the outer margin; shining on the inner part, with rather large vague punctures.

There is some pure white pubescence at the sides of the metasternum, a spot above

the margin of the basal segment of the abdomen, and a spot at the side of the second

segment. The lateral carina of the basal segment is distinctly curved about the

middle (fig. 24 6).

AGRILUS. 95

74. Agrilus letulus. (Tab. V. figg. 25, 25 a-d.)

Cyaneo-viridis, nitidus; thorace tenuiter striolato, medio bi-impresso; elytris crebre rugosis, vitta brevi ante

medium (extus ad apicem macula parva aucta) plagaque ante apicem transversa griseis ornatis, apice

obtuse rotundato et denticulato.

Long. 3 lin,

Hab. Guatema.a, San Juan in Vera Paz (Champion).

The head is rather flat in front, closely and somewhat strongly punctured, the punc-

tures confluent transversely at the lower part; the top of the head is longitudinally

striolate. ‘The thorax has two discoidal impressions, one anterior, the other posterior,

both moderately deep and wide; the posterior ridge is distinct near the margin,

slightly thickened anteriorly, curved downwards, but not reaching the margin (fig. 25 a).

The elytra have the subcosta very distinct (but not at the base, where the surface is

convex), parallel with the suture to near the apex, then turned towards the suture ;

the apex of each elytron is subtruncate, distinctly denticulate (fig. 25d). The pro-

sternal chin-piece is gently but distinctly emarginate in the middle. The prosternum

is scarcely pubescent, finely and not very closely punctured; the intercoxal process

is gently convex in the middle, the margins slightly raised, acuminate at the apex

(figg. 256, c¢). The metasternum has a deep median channel. ‘The episterna are

sparsely pubescent exteriorly, shining and very obscurely punctured on the inner half.

The abdomen is not very closely punctured, the intercoxal process acutangular; there

is a slight whitish spot at the side of the second segment; the lateral carina of the

basal segment is scarcely sinuous behind the middle.

This species much resembles A. fasciolatus, Chevr., from Brazil.

75. Agrilus consimilis, (Tab. VI. figg. 1, 1 a-c.)

Cyaneo-viridis, nitidus; elytris maculis parvis albis notatis.

Long. 3 lin.

. Hab. GuatemaLa, Panima in Vera Paz (Champion).

This species so closely resembles the preceding that at first sight it might be taken to

be a mere variety of it. he head is more arched in front and very delicately punctured,

the vertex with a somewhat deep longitudinal impression. ‘The thorax is rather finely

punctured, and is very finely striolate only towards the sides; there is a very deep

central impression at the base (with some white pubescence) and a very indistinct one

in front. The elytra have the subcosta scarcely indicated, the surface being flat; each

has a small elongate spot before the middle, and between this and the apex there is a

second more distinct spot ; the apex of each is obtusely rounded and denticulate (fig. 1 a).

The prosternal chin-piece is gently arcuate. The prosternum is obscurely punctured,

clothed with fine whitish pubescence; the intercoxal process is flat, not margined,

almost truncate at the apex (figg. 1 4, ¢). The metasternum has an impressed median

line. The abdomen has some sparse whitish pubescence, which is very long on the

96 SERRICORNIA.

terminal segments ; the apex is broadly truncate; the sides of the basal segment are

steel-blue; the second segment has a distinct whitish spot at the side; the lateral carina

of the basal segment is very slightly sinuate behind the middle, with a white spot

above.

76. Agrilus teniatus.

Agrilus teniatus, Chevr. Col. Mex. Cent. ii. fasc. 6, no. 140°.

Hab. Mexico, Alvarado 1.

This species has a fine posterior ridge to the thorax, close to the margin, and scarcely

visible from above. It much resembles in general appearance A. confusus, Waterh.,

near to which it might be placed were it not for the ridge on the thorax.

77. Agrilus nigripennis.

Aineo-niger, parum nitidus ; capite viridi-szneo ; thorace cuprascente, transversim striolato, medio bi-impresso ;

elytris nigris, tenuiter asperatis, ad apicem bene acuminatis.

Long. 23-24 lin.

Hab. Mexico, Teapa in Tabasco (H. H. Smith); Panama, Bugaba, Volcan de

Chiriqui 3000 to 4000 feet, Los Remedios (Champion).

The head is generally green, but sometimes coppery, rather closely punctured, longi-

tudinally impressed in the middle, with a very slight impression above the clypeus.

The thorax is marked with rather closely-placed, curved, oblique, punctured striole ;

the disc has a slight longitudinal impression, which in some lights appears to be

divided into two. The elytra are slightly asperate, and somewhat finely rugose below

the scutellum ; the subcosta is only slightly marked; each elytron has two very small

teeth at the sutural angle, then a slight interval between the series of small teeth on

the outer margin. The prosternal process is closely and very finely rugose in the

middle. The metasternum is rather strongly and moderately closely punctured ; the

episterna are closely and finely punctured. ‘The abdomen is rather strongly and

moderately closely punctured. |

Two or three examples out of a long series from Teapa have the elytra bronzy.

78. Agrilus apicatus. (Tab. VI. figg. 2, 2a.)

Elongatus, subparallelus, sat angustus, niger, nitidus; thorace sneo, bene convexo, tenuiter transversim

ruguloso ; elytris tenuiter asperato-punctatis, singulis ad apicem excisis.

Long. 22 lin.

Hab. Guatemata, Dueiias (Champion).

The head is convex, finely and closely punctured; with a lightly impressed line on

the vertex ; the lower part of the face is eneous. The thorax is very convex (with

scarcely any trace of impression at the sides or posterior angles), slightly narrowed at

the base, with the posterior angles somewhat diverging; finely punctured and slightly

AGRILUS. 97

rugulose ; in some lights a faintly impressed median line may be traced; the posterior

ridge is scarcely distinguishable (fig. 2). The elytra are finely and moderately closely

punctured, appearing slightly asperate in some lights; the subcosta is not very distinct,

curved to the suture just before the apex; each elytron has a small semicircular

emargination at the apex (fig. 2a). The prosternal chin-piece is gently emarginate.

The prosternum is very finely punctured, the punctures often arranged in irregular

transverse lines; the intercoxal process is somewhat deflexed and obliquely narrowed at

its apex. The episterna are shining, and with only a few fine punctures on the inner

half, pubescent on the outer half. The abdomen is very finely and not closely punc-

tured ; the lateral carina of the basal segment is scarcely angulated in the middle,

rectilinear posteriorly. |

79. Agrilus chalcoderes.

Agrilus chaicoderes, Chevr. Col. Mex. Cent. ii. fasc. 6, no. 143 (1835)'.

Hab. Mexico1, Playa Vicente (Sal/é), Oaxaca, Cerro de Plumas, Acapulco (Hége),

Chilpancingo in Guerrero (Hoge, H. H. Smith), Amula in Guerrero (H. H. Smith).

The specimens from the above localities (a long series from Oaxaca and one or two

from each of the other places) vary from 2% to 33 lines in length. They have yellow

pubescence in the lateral impression of the thorax, and the metathoracic episterna, the

outer angle of the posterior coxe, and the posterior angle of the metasternum marked

with deep orange-yellow pubescence.

Specimens from the following localities vary from 24 to 24 lines in length :—

Mexico, Cordova, Juquila (Sal/é), Oaxaca (Hoge); Panama, Bugaba 800 to 1500 feet,

Caldera 1200 feet (Champion).

These examples (one from Oaxaca, and one or two from each of the other places),

besides averaging smaller, have no pubescence on the thorax and no orange marks on

the sides beneath. They appear to be in good condition.

It is possible that these two series may represent two species, but I am unable to say

to which Chevrolat’s type (now in the British Museum) is to be referred. It is 2% lines

in length, and has all the appearance of the specimens from Oaxaca in the first series ;

it has some yellow pubescence in the lateral thoracic impression, but no orange spots

below, nor does Chevrolat mention them in his description.

80. Agrilus impressus.

Aphanisticus impressus, Chevr. Col. Mex. Cent. ii. fase. 6, no. 145°,

Hab. Mexico, Alvarado 1.

81. Agrilus atripennis.

Agrilus atripennis, Chevr. Col. Mex. Cent. ii. fase. 6, no. 141 (1835) °.

Hab. Mexico ', Playa Vicente, Vera Cruz, Panistlahuaca (Sal/é), Iguala in Guerrero

(Hoge).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, Apri/ 1889. 0

98 SERRICORNIA.

82. Agrilus chevrolati.

Sat depressus, subsurdus, viridi-sneus ; thorace rufo-cupreo (vel aurato), subruguloso, disco antice et postice

impresso, lateribus fortiter impressis; elytris nigris, crebre asperatis, haud costatis, ad apicem arcuatim

acuminatis, apice ipso vix serrulato.

Long. 34 lin.

Hab. Mexico, Chilpancingo in Guerrero (Hége), Toxpam (Sal/dé).

The head is rather flat in front, closely rugose; with a deep longitudinal frontal

impression, which descends for two thirds the length of the face, with a slight swelling

on each side. ‘The thorax is reddish-coppery, with the extreme anterior margin (which

is somewhat arched forward) dark eneous; the disc is transversely impressed in

front and longitudinally impressed behind; the lateral impression is deep and abrupt ;

the posterior ridge is distinct, curved outwards and downwards anteriorly. The pro-

sternal chin-piece is arcuate, but has its margin nearly straight in the middle. The

prosternum is rugose, rather flat between the coxe, and not margined laterally. The

metathoracic episterna are closely and rather roughly punctured, with very sparse grey

pubescence. The abdomen is very finely and not very closely punctured.

This species is very like A. chalcoderes (without yellow pubescence) ; but is broader,

and has the thorax impressed in front and the impression on the head much deeper.

83. Agrilus ignotus. (Tab. VI. figg. 3, 34, 6.)

Latus, sat depressus, parum nitidus, wneus; capite cupreo, crebre punctato; thorace lete cupreo, nitido,

fortiter punctato ; elytris cyaneis, purpurascentibus, crebre asperatis, brevissime sparsim griseo-pubescenti-

bus, ad apicem arcuatim attenuatis, apice ipso tenuiter serrulato.

Long. 23-32 lin.

Hab. Mexico, Chilpancingo in Guerrero (Hige, H. H. Sinith).

This is a rather short, broad species as compared with A. chalcoderes. The head is

coppery, verging into brassy at the base of the antenne, with very short pale pube-

scence; the punctures are strong and close together, forming curved lines on the

vertex; there is a longitudinal impression in the middle, narrow posteriorly, but

widening out and becoming more shallow above the clypeus. The thorax is shining

coppery, with sparse, very short yellowish pubescence; the punctures are rather

strong and are arranged in wavy lines which are not crowded together ; the front of

the disc is convex; the base is impressed ; the lateral impressions are distinct; the

posterior ridge is represented by an oblique oval swelling (fig. 3a). The elytra are

evenly and moderately closely asperate; the subcosta is faintly marked for nearly the

entire length of the elytra. The prosternal chin-piece is distinctly (slightly angularly)

emarginate. The prosternum is moderately strongly punctured, the punctures not

crowded ; the intercoxal process is convex in the middle. The metathoracic episterna

are closely and rather finely punctured. The abdomen is densely punctured at the

sides (especially at the base), less closely punctured in the middle; the lateral carina

AGRILUS. 99

of the basal segment alters its direction posteriorly (fig. 36). The whole of the sternum

is finely pubescent.

Two examples, one from Yolos and the other from Parada, appear to be varieties of

this species; but they differ considerably from each other and from the type.

The example from Yolos is 44 lines long: it differs from the type in having the

thorax more coarsely punctured. The specimen from Parada is 3% lines long: it

differs from the type in having the head obscure green, and rather more widely

sulcate; the thorax golden, tinted with coppery in the middle; the elytra decidedly

more obtuse at the apex, each being somewhat obtusely rounded; and the whole of

the underside black.

Three specimens from Chilpancingo (24 to 34 lines long) differ from the type in

being relatively narrower, especially the smaller examples; and they are brassy above,

with the elytra faintly tinted with coppery.

Two examples, one from Panistlahuaca (Sal/é) and one from “ Interior of Mexico,

Turner” (Brit. Mus.), agree fairly with the type, except that they are uniform brassy-

green above, and the elytra appear rather more closely rugose.

It is not improbable that I may be here associating several closely allied species,

_ but some of the differences may be sexual.

84. Agrilus marginatus.

Latus, sat depressus, fere niger, parum nitidus ; capite rugoso, longitudinaliter sulcato ; thorace aureo-cupreo,

fortiter rugoso, lateribus nigro-purpureis; elytris crebre asperatis, brevissime griseo-pubescentibus,

violaceo-nigris, ad apicem subtruncato-rotundatis, tenuiter serrulatis.

Long. 33 lin.

Hab. Mexico, Oaxaco (Sallé).

The longitudinal channel on the head is only moderately deep and rather wide,

having no abrupt limits. The thorax is coarsely rugose, with some shining wavy ruge

on each side of the disc; the disc has a moderately well-marked oval impression in

front, and another at the base; the lateral impression is very slight; the posterior

ridge is distinct, short, slightly directed inwards. The elytra have the subcosta very

slightly marked. ‘The prosternal chin-piece is distinctly emarginate. The prosternum

is closely and rather finely rugose; the intercoxal process is not margined. The meta-

thoracic episterna are finely rugose on the outer side, but with a smoother inner

margin. The abdomen is moderately finely punctured, generally in wavy lines, the

punctures much less distinct in the middle than at the sides. The whole of the

underside of the insect is more or less clothed with very short fine pubescence.

85. Agrilus bicolorellus.

Agrilus bicolorellus, Thomson, Typi Buprest. p. 90°.

Hab. Mexico !.

100 SERRICORNIA.

. A. ruficollis, Fabr., affinis sed alius.”—Th.

This is possibly conspecific with one of the foregoing species, but I cannot identify it.

86. Agrilus vigilans. (Tab. VI. figg. 4, 4 a, 6.)

Enescens, nitidus ; capite viridi-cyaneo, crebre punctato, medio sulcato ; thorace lete cyaneo, undatim striolato,

ant:ce et postice foveola impresso; elytris rufo-cupreis, macula basali altera ante medium oblonga griseo-

pubescentibus, apice pube grisea asperso ; antennis nigris, basi aneis.

Long. 22 lin.

Hab. Mexico, Acapulco in Guerrero (Hége).

The head is rather strongly punctured, but the punctures are somewhat vague ;

the longitudinal channel extends from the clypeus nearly to the back of the head ;

the clypeus is brassy. ‘The thorax is blue (tinted with green in some lights); the

two discoidal impressions are distinct, slightly elongate; the posterior ridge is fine and

nearly straight (fig. 4a). The elytra are closely asperate, reddish-coppery, with the

sutural area inclining to purple and the apex tinted with golden, very acuminate at the

apex; the subcosta is distinct, gradually approaching the suture posteriorly; each

elytron has a pale grey pubescent spot at the base and another oblong one just before

the middle, and the whole of the apex is sprinkled with fine short pubescence of

the same colour. The prosternal chin-piece is gently emarginate. The prosternum is

finely, but rather roughly punctured, especially the intercoxal process, which has its

lateral margins raised. The metathoracic episterna are finely and closely punctured.

The abdomen is finely and moderately closely punctured; the lateral carina of the

basal segment is parallel to the margin of the elytra (fig. 4 0).

A second specimen from the same locality differs from the one above described in

being greenish-golden, with the elytra coppery; the antenne longer, reaching to the

base of the thorax; the elytra apparently rather narrower, and each more decidedly

obliquely truncate inside and outside at the extreme apex, which is serrate; the head

and thorax more roughly sculptured ; and the prosternal process more densely clothed

with silky pubescence.

These differences may be sexual.

87. Agrilus simulans, (Tab. VI. figg. 5, 5a.)

Enescens, nitidus; capite thoraceque cyaneis ; elytris cuprascentibus, macula basali altera ante medium

strigaque apicali griseo-pubescentibus ; abdominis marginibus plus minusve rufo-cupreis, segmenti basalis

carina laterali medio sinuata ; metasterno coxisque posterioribus pube ochracea ornatis. 3

Long. 23 lin. ,

Hab. Mexico, Acapulco in Guerrero (Hége).

This insect is extremely like A. vigilans. It differs, however, in the following

points :—The punctuation of the head is very fine, and the colour is more violet. ‘The

elytra have the subcosta parallel to the suture for about two thirds their length, and

then it rather suddenly turns in towards the suture, and then again runs parallel to it

(fig. 5), the space between it and the suture being filled by a narrow stripe of pale

AGRILUS. . 101

yellowish-grey pubescence. The division between the true first and second segments of

the abdomen is marked by a strong sinuosity in the lateral carina (with a whitish

pubescent spot above), and by an impression at the side of the segment (fig. 5@). The

prosternal chin-piece is more distinctly emarginate.

88. Agrilus speciosus. (Tab. VI. figg. 6, 6 a.)

Subtus nigro-sneus; capite eneo, crebre fortiter punctato ; thorace neo, nitido, tenuiter haud crebre punctato,

transversim tenuiter striolato; elytris rufo-cupreis, tenuiter asperatis, ante apicem angustatis, maculis sex

griseo-flavis ornatis.

Long. 24 lin.

Hab. Mexico, Acapulco in Guerrero (Hoge).

The head is nearly flat in front, closely and finely punctured, not sulcate. The

thorax is convex, scarcely perceptibly impressed in front ; the posterior ridge is fine and

distinct, nearly straight (fig. 6a). The elytra have the subcosta fairly well marked ;

each elytron has three yellowish spots—one at the base, the second about the middle,

and the third a little nearer the apex than to the second spot; the apex of each elytron

is obliquely rounded off exteriorly, and finely serrate. The prosternal chin-piece is

rounded anteriorly. The prosternum is finely and closely punctured, and slightly

pubescent; the intercoxal process is not very distinctly margined laterally. The meta-

thoracic episterna are finely punctured. The abdomen is moderately finely and not

very closely punctured. The basal joint of the posterior tarsi is rather short.

89. Agrilus asperulus. (Tab. VI. figg. 7, 7 a, 6.)

Parum convexus, fere niger; capite nigro-sneo, nitido, crebre evidenter punctato, medio sulcato; thorace

obscure eeneo, nitido, creberrime granuloso ; elytris viridi-aureis, sutura late eneo-nigra.

Long. 23 lin.

Hab. Mexico, Ciudad in Durango 8100 feet (forrer).

The head is gently convex in front; the channel is well marked, and extends from

the clypeus to the vertex (fig. 7). The thorax is convex in front, with a slight

elongate impression in the middle of the base ; the posterior ridge is fine but distinct,

nearly straight (fig. 7a). The elytra are densely and finely rugose, with scarcely any

trace of the subcosta. The prosternal chin-piece is arcuate. The prosternum is finely

punctured. The abdomen is finely and not very closely punctured.

90. Agrilus mutabilis.

AEneus, parum nitidus, elytris rufo-cupreis, ad suturam purpureis ; capite confertim rugoso-punctato ; thorace

crebre punctato et transversim undulato-ruguloso ; elytris planiusculis, confertim sat fortiter asperatis, ad

apicem denticulatis ; prosterno crebre punctato ; abdomine striolato.

Var. thorace elytrisque concoloribus.

Long. 3 lin.

Hab. Mexico, Oaxaca (H6ge).

The front of the head is rather more finely punctured in the male than in the female,

and more pubescent; there isa slight impressed line in the middle. Some of the

102 SERRICORNIA.

examples have two very slight impressions on the disc of the thorax; the usual ridge

at the posterior angles is very short, curved. The elytra are rather flattened, the

subcosta only slightly distinguishable at the middle; the suture is generally purple,

verging into blue-green at the middle; the denticulation at the apex is very fine

and not very distinct. The underside of the insect is sparingly clothed with very

short pale grey pubescence. The prosternum is densely and finely punctured. The

metathoracic episterna are closely and finely punctured. ‘The abdomen is finely but

distinctly punctured, the punctures not very close together.

91. Agrilus furcillatus.

Agrilus furcillatus, Chevy. Col. Mex. Cent. i. fase. 8, no. 50*; Cast. & Gory, Mon. ii. p. 15, t. 3. f. 16.

Hab. Mexico, Orizaba 4, Cordova, Tuxtla (Sallé), Jalapain Vera Cruz (Hoge), Atoyac

in Vera Cruz, Cuernavaca in Morelos (H. H. Smith); Guatemata, Duefias, San

Geronimo 3000 feet (Champion); Honpuras (Sallé); Nicaragua, Chontales (Belt) ;

Costa Rica, Irazu 6000 to 7000 feet (Rogers).

92. Agrilus sulcatulus.

Agrilus sulcatulus, Chevr. Col. Mex. Cent. ii. fasc. 6, no. 189*; Cast. & Gory, Mon. ii. p. 17, t. 4.

fig. 19.

Hab. Mexico’, Villa Lerdo in Durango, Tupataro in Guanajuato, Mexico city, Cordova

(Hoge), Puebla (Sad/é), Amula in Guerrero 6000 feet (H. H. Smith).

93. Agrilus eupalamus,

Agrilus eupalamus, Gory, Mon. iv. p. 217, t. 36. fig. 207*.

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).—Cotomsia },

Bogota (Brit. Mus.).

94. Agrilus catherine.

Buprestis bifasciata, Gray in Griffith’s Anim. Kingd. xiv, p. 258, t. 31. fig. 3 (1832) (sine descr. ;

nec Olivier).

Stenogaster catherine, Chevr. Col. Mex. Cent. ii. fasc. 8, no. 191 (1835) *.

Agrilus bifasciatus, Cast. & Gory, Mon. i. p. 21, t. 4 fig. 24 (1841).

Hab. Mexico, Tepetlapa in Guerrero 3000 feet (H. H. Smith), Tuxtla, Cordova

(Sal/é), Almolonga, Jalapa (Hége), Vera Cruz}, Temax in Yucatan (Gawmer); GuATE- .

MALA, San Gerénimo (Champion),

95. Agrilus splendidipodex. :

Agrilus splendidipodex, Thomson, Typi Buprest, p. 89°. aed

Hab. Mexico}.

This species is stated to be allied to A. cathérine.

AGRILUS. 103

96. Agrilus aureus.

Agrilus aureus, Chevr. Silberm. Rey. Ent. v. p. 98+.

Hab. Mexico, Tuspan!, Puebla, Guanajuato (Sallé), Tupataro in Guanajuato

(Hoge).

97. Agrilus biemarginatus. (Tab. VI. figg. 8, 8a, 3.)

Elongatus, angustus, subparallelus, nitidus, supra obscure cyaneus, subtus cupreus ; capite antice viridi, medio

leviter impresso; thorace convexo, tenuiter striolato, medio sulcato ; elytris tenuiter rugosis, maculis sex

argenteis ornatis, singulis ad apicem sat profunde excisis.

Long. 23 lin.

Hab. GUATEMALA, near the city (Champion).

The head is rather closely punctured and slightly rugulose, with a very slight median

impression. ‘The thorax is rather long, very convex in front, impressed at the base;

the median channel is narrow, more strongly marked in front than at the base; the

striation is very fine, generally transverse, but longitudinal at the sides. The elytra

are a little narrowed below the shoulders, as broad behind the middle as at the

shoulders ; the apex is obtuse, each elytron having a semicircular emargination (fig. 8 a) ;

the subcosta is only distinguishable before the middle; the colour is obscure steel-blue,

with the basal impression, a patch at the side, before the middle, and a spot near the

suture at a little distance from the apex, eeneous; each elytron has a small silvery

spot at one quarter from the base, another about the middle, and an oblique one not

far from the apex. The prosternal chin-piece is arcuate. The prosternum is finely

punctured, slightly pubescent ; the intercoxal process is rather flat, rounded at the apex.

The episterna are pubescent on the outer side, shining and sparsely punctured on the

inner side. The abdomen is finely punctured, with a pubescent spot at the side of the

second segment; the lateral carina is slightly sinuous at the middle, with a silvery spot

above (fig. 8 5).

98. Agrilus ratus. (Tab. VI. fig. 9.)

Niger, nitidus, capite thoraceque enescentibus, elytris nigro-zneis, plagis w#neis griseo-pubescentibus ornatis ;

capite lato, longitudinaliter sulcato, oculis prominulis; thorace basi angustato, medio sulcato; elytris

rugosis, eneis, fascia post medium apiceque nigris.

Long. 24 lin.

Hab. GuateMata, Sabo in Vera Paz (Champion).

This species is noticeable for its broad head and prominent eyes. The top of the

head is biconvex, the face is longitudinally sulcate. The thorax is moderately broad,

gradually narrower to the base, straight at the sides, vermiculate-rugulose, impressed

at the sides and base; with a somewhat deep median channel. The elytra are rather

coarsely rugose, brassy, with a moderately broad fascia behind the middle, and the

apex nearly black; the brassy parts are clothed with grey pubescence. The prosternal

104 SERRICORNIA.

chin-piece is gently emarginate. The prosternum is coriaceous, with punctures placed

not very close together over the surface ; the intercoxal process is acuminate posteriorly.

The episterna are pubescent on the outside, shining on the inner half, punctured, the

punctures irregular and not very close together. The lateral carina of the basal

segment of the abdomen is nearly rectilinear posteriorly.

99. Agrilus pullulus. (Tab. VI. figg. 10, 10a.)

Niger, nitidus ; capite convexo, linea mediana leviter impresso; clypeo eneo; thorace ruguloso, medio longi-

tudinaliter impresso; elytris wruginoso-nigris (basi eneo-tincta), tenuiter rugosis, ad apicem levioribus,

maculis griseo-albis ornatis.

Long. 24 lin.

Hab. Mexico, Cordova (Sallé).

The head is convex and very shining, rugulose, the ruge oblique on the top of the

head, transverse on the lower part of the face; the median impressed line is not very

strongly marked above, but is deeper and a little wider above the clypeus. The thorax

is convex, rugulose, shining, with the sides gently and evenly arcuate; the median

impression is moderately broad, but a little narrowed about the middle, the posterior

angles are only comparatively little impressed ; all the basal region is sparingly clothed

with grey pubescence. The elytra are a little compressed below the shoulders; as

broad behind the middle as at the shoulders; there is an elongate spot at the suture

(slightly interrupted at its middle), which is joined posteriorly to a transverse lateral

spot just behind the middle; near the apex there is another spot, broad at the suture,

narrowed to the margin. ‘The prosternal chin-piece is deeply emarginate. The

prosternum is distinctly and not very closely punctured, shining; the intercoxal process

is acuminate, gently convex, finely margined (fig. 10a). The episterna are shining, with

some fine, rather distant punctures. The abdomen has the lateral carina of the basal

segment rectilinear posteriorly ; there is a distinct white spot at the side of the second

segment.

The posterior coxe are clothed with white pubescence.

100. Agrilus confusus. (Tab. VI. fig. 11.)

Preecedenti simillimus, differt tamen thorace postice angustato; capite antice, episternis femoribusque eneis.

Long. 2 lin.

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet ( Champion).

This insect so closely resembles the preceding that it is with reluctance that I

separate it. The. prosternum is finely rugose, but this and the brassy colour of the

head might be sexual; I think, however, that this is not the case, as there is a very

distinct difference in the form of the thorax, the sides being gently sinuate behind the

middle instead of regularly arcuate (fig. 11). |

AGRILUS. 105

101. Agrilus acclivis. (Tab. VI. fig. 13.)

A. pullulo similis, at multo minor, capite antice femoribusque aureo-viridibus,

Long. 12 lin.

Hab, Guatemata, Zapote (Champion).

This insect closely resembles A. pud/ulus, but is much smaller and has the front of

the head bright golden-green. The prosternum is finely rugose, and in other respects

agrees with that of A. confusus. The abdomen of the only specimen before me has no

spot at the side of the second segment ; and the lateral carina of the basal segment is

slightly curved about the middle (fig. 13).

102. Agrilus acceptus. (Tab. VI. figg. 12, 12a.)

A, pullulo similis, at minor, toto eneus, nitidus.

Long. 13 lin.

Hab. GuateMaa, Cerro Zunil 4000 feet (Champion).

This species is very like A. pullulus, but is entirely brassy, except the lower part of

the face, which is green. The face is densely striolate, the striz curved inwards and

downwards, with rather large punctures arranged in curved lines. The elytra have the

shining space between the discoidal and subapical spots of a darker shade than the rest

of the surface. The prosternum, which in A. pullulus is bare, is clothed with long

pubescence. The episterna are smooth on the inner half, with a line of small

punctures. The abdomen has the lateral carina of the basal segment rectilinear

posteriorly (fig. 12 @); there is a spot at the side of the second segment. The posterior

tarsi are very long and slender.

103. Agrilus temporalis. (Tab. VI. fig. 14.)

A. accepto affinis et similis, minus angustus, eneus, capite antice viridi.

Long. 13 lin.

Hab. GuatTEmMata, Capetillo (Champion).

This insect resembles the preceding. Jt is, however, relatively less narrow; the

thorax is less cylindrical, with the sides more impressed and inclined to be angular

behind the middle; the discoidal impression is more divided in the middle, the

anterior portion more transverse, so that there appear to be two impressions rather

than a channel. The head is coarsely rugose, and does not show transverse ruge at the

lower part of the face. Each elytron has two pubescent spots (one above the other) at

the suture before the middle, but there is no lateral spot. The prosternum is finely

coriaceous, with large punctures placed irregularly, not pubescent.

104. Agrilus refectus. (Tab. VI. figg. 15, 15a.)

/Gneus, nitidus ; capite convexo, linea mediana impresso; thorace basi paullo angustato, lateribus subrectis,

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1889. P

106 SERRICORNIA.

disco bi-impresso ; elytris maculis inconspicuis (quatuor ante medium et duabus ante apicem) griseis, fascia

post medium vage cuprascente, nitida, ornatis.

Long. 13 lin.

Hab, Guatemata, Calderas 7000 feet (Champion).

The head is convex, shining, with an impressed median line; the top of the head is

rugulose, the upper part of the face with rather large punctures, the lower part with

transverse shining ruge. The thorax is broadest just before the front angles, narrowed

to the base, striolate, the striolz not very close together, the intervals slightly convex ;

the disc has a shallow impression in front, which is confluent with a larger one at the

base; the posterior angles and the base are impressed ; the sides (which are rectilinear)

are narrowly but distinctly reflexed. The elytra are rugose, smoother towards the

apex, with a brownish-coppery band behind the middle; each elytron has two

indistinct spots near the suture before the middle, and another at a short distance

from the apex. The prosternal chin-piece is large, with a deep central emargination.

The prosternum is shining, very finely sculptured, without punctures; the intercoxal

process is finely transversely wrinkled, acuminate posteriorly (fig. 15a). ‘The episterna

are shining, punctured on the outer margin. ‘The lateral carina of the basal segment

of the abdomen is rectilinear posteriorly.

105. Agrilus parvus. (Tab. VI. fig. 16.)

AEneus, nitidus; capite convexo, fortiter punctato; thorace lato, convexo, ruguloso, basi impresso, lateribus

rotundatis, tenuiter marginatis; elytris rugosis, immaculatis.

Long. 14 lin.

Hab. Mexico, Guanajuato (Sallé).

This insect is allied to the preceding, but is easily distinguished by the evenly convex

thorax, which has the sides unusually rounded. The head is convex (the eyes not

prominent), finely coriaceous, and coarsely punctured, the punctures forming curved

lines at the top; there is a shallow small impression above the clypeus, and a not

deeply impressed line on the vertex. The thorax is broad and convex, somewhat

coarsely and closely rugulose (with a very indistinct indication of a median channel) ;

rather more narrowed at the base than at the front, the sides arcuately rounded, with a

small impression at the base near the posterior angle. The elytra are slightly narrowed

below the base, a little broader behind the middle than at the shoulders; impressed

or flattened on the disc. The prosternal chin-piece is gently emarginate. The pro-

sternum is shining, with numerous punctures scattered over the surface; the intercoxal

process is acuminate posteriorly. The episterna are finely coriaceous, with a few

cuneiform punctures. The abdomen has the lateral carina of the basal segment

rectilinear posteriorly.

AGRILUS. 107

106. Agrilus basalis.

Agrilus basalis, Chevr. Col. Mex. Cent. ii. fase. 6, no. 144 (1835) ".

Hab. Mexico, Alvarado 1, Cordova (Sallé), Atoyac in Vera Cruz (H. H. Smith).

All the examples of this species in the British-Museum collection as well as those

received from M. Sallé differ from the type in having the front of the head green.

107. Agrilus punctatissimus.

/Eneus ; capite thoraceque rufo-cupreis, creberrime punctatis ; elytris nigro-purpureis, basi obscure viridi-eneis,

sat dense pube flavo-grisea vestitis, basi lateribusque fere usque medium calvis.

‘Long. 34 lin,

Hab. Mexico, Cordova (Sallé).

The head is convex, with a not very deep longitudinal channel in front ; the clypeus

is green. The thorax is convex anteriorly, with a very shallow impression in front of

the middle; the extreme anterior and posterior margins are tinted with blue; the

posterior ridge is very short and indistinct, obliquely directed inwards. ‘The elytra are

very densely punctured, more granular at the base; they are considerably widened at

the posterior two thirds, and then narrowed to the apex, the apex of each elytron being

obliquely truncate inside and outside; the subcosta is very slightly marked. The

prosternal chin-piece is distinctly emarginate. The prosternum is closely and finely

punctured and slightly pubescent ; the intercoxal process is very slightly raised in the

middle, not margined at the sides. The metathoracic episterna are closely punctured

on the outer half, nearly smooth on the inner side. The abdomen is very delicately

punctured, the punctuation dense at the base; the three apical segments have each

a whitish pubescent spot at the sides. The legs are long and slender; the basal

joint of the posterior tarsi is very long.

This species so closely resembles A. basalis that I separate it with hesitation. It

differs in having the basal margin only of the thorax greenish-blue, whereas in

A. basalis the green colour extends one third the length of the thorax; the disc has

a shallow impression in front, and is not longitudinally channelled asin A. basalis; and,

lastly, there is a slight oblique posterior ridge, which is not present in A. basalis.

108. Agrilus dimidiatus. (Tab. VI. figg. 17, 17.)

Cyaneus, sat nitidus; capite thoraceque lete rufo-cupreis; elytris cyaneo-viridibus, dimidio apicali pube griseo-

flava sat dense vestitis, pube ad suturam scutellum versus paullo ascendente; abdomine maculis niveis

ornato.

Long. 2% lin.

Hab. Panama, Bugaba (Champion).

The head is convex, longitudinally striolate on the top, shining, and not very closely

punctured in front, with a well-marked Azshaped impression. ‘The thorax is rather

short, convex in front, deeply impressed at the base, closely rugulose, the rugee curved ;

108 SERRICORNIA.

the lateral margins and the extreme base are violet; the posterior ridge is absent. The

elytra are moderately closely punctured, but the punctuation is not clearly defined.

The prosternal chin-piece is gently arcuate. ‘There is a pure white pubescent spot at

the side of the metasternum ; the posterior coxe and the outer half of the metathoracic

episterna are clothed with white; and there is a distinct white spot on the basal

segment of the abdomen above, a rather large one at the side of the second segment,

and smaller ones on the third and fourth segments. The lateral carina of the basal

segment is sinuous about the middle (fig. 17 a).

109. Agrilus spissus. (Tab. VI. figg. 18, 18 a.)

Rufo-cupreus ; capite crebre punctulato, antice maculis duabus flavis ornato, vertice virescente ; thorace crebre

ruguloso, disco bi-impresso, macula mediana et laterali pallide flavis; elytris griseo-nigris, opacis, pube

brevissima flavo-grisea vestitis, confertim subtiliter granulatis; abdominis marginibus supra aureo-

pubescentibus.

Long. 33-4 lin.

Hab. Mexico, Jalapa (Hoge); GuaTeMALa, Quiche Mts. 7000 to 9000 feet, San

Gerdnimo (Champion).

The head is shining in front, closely and finely punctured; there is a well-marked

impression above the clypeus, and a larger wider one at the upper part of the face,

with a longitudinal impressed median line. The example from Guatemala has the

front of the head bright golden-green: no doubt this is a male character. The thorax

has two slight impressions on the disc, the anterior one rather larger than the posterior,

both sometimes concealed by the yellow pubescence; the posterior ridge is some-

what curved, and is not well marked. The elytra are rather flat, densely and finely

granular; the subcosta is faintly indicated; in one example the fine pubescence shows

a tendency to form a narrow stripe on the inside of the subcosta. The prosternal

chin-piece is distinctly emarginate. The prosternum is convex, finely punctured, the

punctures slightly separated from each other ; the intercoxal process is slightly flattened

at the sides, obtusely angular at the apex (fig. 18a). The episterna are pubescent on

the outer half, shining, sparingly punctured, and with transverse impressed lines on the

inner half. The abdomen is finely punctured, slightly pubescent; the lateral carina of

the basal segment is scarcely bent at the middle, rectilinear posteriorly.

110. Agrilus planipennis.

Niger; capite thoraceque eneis, hoc basi rufo-cuprea; elytris confertim granulatis, post medium sat ampliatis.

Long. 3% lin.

Hab. Mexico, Juquila, Tuxtla (Saidé).

This species is very similar in appearance to A. gracilitarsis, but is different in form,

and is black beneath. The head is narrow; deeply longitudinally impressed, the

impression extending to the top of the head and visible from above. The thorax

AGRILUS. 109

is a little narrower in front than behind, without any discoidal fovea; the posterior

ridge is very short, and often very indistinct. The elytra are relatively a little shorter,

less attenuated at the apex, and wider behind the middle than at the shoulders; the

granulation is a little less even and the granules are slightly separated from each

other. The episterna are rather closely rugose, not pubescent. The abdomen has

the lateral carina of the basal segment rectilinear posteriorly. The antenne are

moderately long and. broad.

111. Agrilus planatus. (Tab. VI. fig. 19.)

Niger ; capite thoraceque eneis, hoc basi rufo-cuprea ; elytris confertim granulatis.

Long. 3-33 lin.

- Hab. Guaremata, near the city, Duefias (Champion).

This species is very close to A. planipennis, but is relatively narrower, the elytra

longer and less dilated behind the middle. The head is more shining, and the impres-

sion is narrower and not so deep on the vertex, so that it is not so noticeable when

viewed from above. The antenne are perhaps a little broader (fig. 19).

112. Agrilus gracilitarsis. (Tab. VI. fig. 20.)

Obscure seneus; thorace rufo-cupreo, margine antico medio eruginoso, basi foveola notata; elytris griseo-

nigris, brevissime pubescentibus, confertim subtiliter granulatis.

Long. 33 lin.

Hab. Guatemaa, Capetillo (Champion).

This species is closely allied to the preceding, but is longer and narrower, the elytra

being about four times the length of the thorax, whereas in A. spissus they are only

three times as long. The head is blackish; the impressions are similar but less

distinct ; when viewed from above it appears to have scarcely any frontal impression.

The thorax is rather broad in front, gradually narrowed posteriorly, finely rugulose ;

dull reddish-coppery with a bluish-green mark in front; there is a distinct elongate

shining fovea in the middle near the base. The elytra are more gradually attenuated

posteriorly. The posterior tarsi are very long and slender. ‘The prosternal chin-piece

is distinctly emarginate. The prosternum is rugose; the intercoxal process is obliquely

acuminate posteriorly. The episterna are rather strongly and moderately closely

punctured, sparsely pubescent. ‘The abdomen has the lateral carina of the basal

segment a little more bent at the middle.

113. Agrilus blandulus.

Agrilus blandulus, Guérin, Rev. Zool. 1844, p. 256°.

Hab. Mzxico!, Orizaba (Sallé), Atoyac in Vera Cruz (H. H. Smith).

110 SERRICORNIA.

114. Agrilus signatus. (Tab. VI. fig. 21.) .

Obseure cyaneo-griseus, pubescens; thorace leviter convexo, confertim punctato; elytris nigro-velutinis,

maculis sruginosis griseo-pubescentibus ornatis; corpore subtus lateribus nigris albo-maculatis.

Long. 34 lin,

Hab. Nicaracva, Chontales (Belt).

This species is very like A. blandulus, but may easily be distinguished by the

episterna being very distinctly punctured on the inner half, whereas in A. blandulus

they are nearly smooth. The markings on the elytra are also slightly different: there

is an oblique spot near the base, an elongate spot at the side about the middle,

margined with grey pubescence, and a‘slightly oblique fascia at a short distance from

the apex; in A. blandulus this fascia is broader and less defined, extending almost to

the apex. The femora are blue.

115. Agrilus albofasciatus. (Tab. VI. figg. 22, 22 a.)

/Eneus, sat nitidus ; capite obscure cupreo, crebre punctulato, medio foveato; thorace bene convexo, obscure

cupreo, transversim sat fortiter ruguloso, medio subcanaliculato ; elytris purpureis, sat crebre asperatis,

medio angustioribus, ad apicem obtuse rotundatis, serrulatis, plaga subapicali cyanea, fascia obliqua ad

medium, altera ante apicem albis.

Long. 33 lin.

Hab. Mexico, Guanajuato (Sallé),

The head is convex, with an ovate impression in front. .The thorax is very convex,

with no distinct lateral impression, narrowed slightly at the base; the posterior angles

are impressed, slightly diverging ; the median impression is narrow, moderately deep in

front, scarcely noticeable posteriorly. The elytra have the subcosta very slightly

indicated, and they are rather broad before the apex ; the sutural area near the apex is

steel-blue; there is a small indistinct white spot at one quarter from the base, an

oblique spot at the middle, and a much more distinct oblique fascia near the apex;

there is also some white pubescence on the outer half of the apex. ‘The prosternal

chin-piece is gently emarginate. The prosternum is rugose; the intercoxal process is

slightly convex, narrowed to the apex. The episterna are sparsely punctured, with a

little pubescence at the base and outer margin. ‘The abdomen is rather closely

punctured ; the lateral carina of the basal segment is rather strongly angular at the

middle, with some silvery-white pubescence above (fig. 22 a); the second segment has

a white spot at the side.

116. Agrilus xanthonotus.

/Eneus, nitidus, supra cyaneus ; thorace sat lato, basi angustata, crebre punctato, lateribus impressis,

ochraceo-maculatis ; elytris crebre punctatis, maculis sex ochraceis ornatis, apice quadrispinoso ; corpore

subtus ochraceo-maculato.

Long. 43 lin,

AGRILUS. 111

Hab. Mexico, Juquila (Sallé), Tehuantepec (Swmichrast); Panama, Caldera 1200 feet

(Champion).

The head is very closely and rather strongly punctured, longitudinally impressed for

its whole length. The thorax is rather unusually rounded at the sides ; convex, trans-

versely striolate and punctured, the punctures not distinct in front; there is a small

indistinct impression at the base ; the sides are impressed and the impression is filled

with yellow pubescence. The elytra are distinctly punctured with cuneiform

punctures which are not crowded together; the subcosta is fairly well marked, sinuous

at the sides of the yellow spots; the yellow spots are elongate-ovate—the first oblique,

in the basal impression, the second just before the middle, the third halfway between

the second and the apex ; the apex of each elytron is deeply excised, leaving a short

tooth (generally bifid) at the suture, and a rather longer acute spine beyond the middle,

outside which there are one or two small teeth. The prosternal chin-piece is slightly

arcuate. The prosternum is closely and finely punctured and pubescent in the male,

more strongly rugose and bare in the female; the intercoxal process is obliquely

narrowed at the apex. ‘The episterna, the sides of the metathorax, the posterior coxe,

a spot on the upper margin and at the sides of the basal segment of the abdomen, and

a spot at the side of the second segment are deep yellow. ‘The abdomen is finely

punctured, with a narrow elongate finely punctured impression in the middle of the

true basal segment; the sides and apex are nearly black; the lateral carina is strongly

angular behind the middle.

117. Agrilus croceomaculatus. (Tab. VI. figg. 23, 23 a.)

Preecedenti affinis et similis, differt tamen elytrorum dente apicali exteriore majore, crassiore.

, Long. 43 lin.

Hab. GuateMALa, Paraiso 300 feet (Champion).

This species is extremely like the preceding, but differs in the shape of the apex

of the elytra: the sutural tooth is more acute and a little longer, the emargination

deeper and narrower, and the external tooth is formed by a prolongation of the exterior

angle of the elytron, its outer margin being denticulate (fig. 23 @). :

118. Agrilus croceovittatus.

A, xanthonoto affinis et similis, differt tamen elytris vitta suturali lata crocea, dentibus apicalibus quatuor

subsequalibus.

Long. 4 lin.

Hab. Guatemaua, Zapote (Champion); Nicaracua, Chontales (Belt).

‘This species is very like A. ranthonotus, but is rather smaller and has the spots on

the elytra replaced by a broad stripe.

112 SERRICORNTA.

119. Agrilus flavoguttatus.

/Eruginosus, sat nitidus; capite rugoso, antice impresso; thorace postice angustato, subsurdo, transversim

tenuiter striolato et sparsim punctato, lateribus flavo-marginatis, angulis posticis prominulis; elytris sat

crebre punctatis, punctis cuneiformibus, maculis sex flavis ornatis, apice pauci-dentato; corpore subtus

flavo-maculato.

Long. 33-4 lin.

Hab. GuatemMaLa, Panzos in Vera Paz (Conradt).

The head is longitudinally sulcate, and in two of the examples is impressed at the

upper part of the face; densely punctured, the punctures having a tendency to form

oblique lines. The thorax is rather broad in front, narrowed posteriorly to near the

posterior angles, not very convex; striolate, each striola having a puncture in it, slightly

rugulose towards the sides anteriorly ; the disc has a small round impression in front,

and there is a less distinct longitudinal one at the base; the sides are impressed and

have a broad band of yellow pubescence; the posterior ridge is absent. ‘The elytra

are moderately closely punctured with cuneiform punctures; the subcosta is tolerably

well marked, slightly curved at each of the yellow spots; each elytron has three

yellow spots—the first is in the basal impression, the second is rather elongate and placed

before the middle, and the third is similar and placed halfway between the second and

the apex ; the apex is rounded and has a few small teeth. ‘The prosternal chin-piece

is arcuate. The prosternum is closely rugose; the intercoxal process is obliquely

narrowed at the apex, with the central process at a lower level. The episterna

are entirely covered with yellow pubescence, which extends also to the posterior angle

of the metasternum and on to the posterior coxe. The abdomen hasan elongate yellow

spot on the upper margin of the basal segment, and a transverse spot at the side below,

with a contiguous longitudinal spot at its inner end; the second segment has an

elongate spot on its upper margin and a triangular spot below; the lateral carina

of the basal segment is somewhat curved at the lateral spot.

One example has the intercoxal prosternal process and the metasternum more finely

rugose than the others, and with very fine yellowish-grey pubescence ; the metasternum

has only a very fine indistinct median line instead of a very distinct one as in the other

examples; and the basal segment of the abdomen is longitudinally impressed in the

middle. ‘These are no doubt sexual differences, but they do not correspond with the

difference above-mentioned in the frontal impressions.

120. Agrilus striativentris. (Tab. VI. figg, 24, 24c.)

Aineus, nitidus ; capite lato, crebre punctato, antice virescente, medio canaliculato, oculis prominulis ; thorace

convexo, postice angustato, creberrime punctato et oblique tenuiter ruguloso, lateribus postice impressis

virescentibus ; elytris postice parum angustatis, crebre subasperato-punctatis, singulis ad apicem rotundatis,

denticulatis, macula parum conspicua ante medium, altera post medium pallide flavis ornatis ; sbdominis

segmento basali basi impressa, longitudinaliter tenuiter striolato,

Long. 33 lin.

Hab. Mexico, Cordova (Sallé).

AGRILUS. 113

The eyes are somewhat prominent laterally, and slightly angular posteriorly. The

thorax is convex in front, impressed at the base, the sides rather broadly impressed

posteriorly ; the posterior ridge is only indicated by a slight raised line which is much

obscured by the punctuation. The elytra are rather rugose at the base, but smoother

at the apex; the subcosta is only indicated at the side of the slightly elongate pubescent

spots; the denticulation at the apex is very regular. The prosternal chin-piece is

not arched forward, but is rectilinear in front. The prosternum is rugose, slightly

curved down posteriorly, truncate at the apex, with a central narrow process at a lower

level. The episterna are rugose, not pubescent. The abdomen is finely punctured ;

the basal segment gently concave at the base and finely striated (fig. 24a); the lateral

carina is rectilinear posteriorly. The posterior femora are slightly incrassate; the basal

joint of the posterior tarsi rather short.

121. Agrilus laticeps. (Tab. VI. figg. 25, 25 a, 6.)

Elongatus, nitidus, postice attenuatus, eneo-cyaneus ; capitis vertice thoraceque nigrescentibus ; elytris obscure

purpureis, costa postice suturam versus subito incurvata ; abdomine segmento basali medio leviter sulcato.

Long. 3 lin.

Hab. Guatemata, Capetillo (Champion).

The head is short and broad, closely and rather coarsely punctured, longitudinally

impressed in front (with a fine median line), and has a little silvery pubescence above the

clypeus ; the basal joints of the antenne are rather long. The thorax is rather

parallel at the sides, obliquely narrowed at the base, moderately strongly transversely

rugulose and finely punctured (the ruge on the disc having a rough appearance); the

sides are impressed and the impressions encroach on the disc on each side a little

behind the middle; there is no distinct posterior ridge. The elytra are closely and

rather finely rugose, gradually narrowed to the apex; the suture is distinctly raised

behind the middle, but is below the level of the surface at the apex; the subcosta is

very well marked, parallel to the suture for two thirds its length and then suddenly

curved in to the suture; there is some short silvery pubescence at the apex near the

suture. The prosternal chin-piece is short, rather strongly emarginate. The prosternum

is closely punctured, but has a smooth space in the middle; the intercoxal process is

truncate at the apex. The episterna are rather closely punctured, slightly pubescent

on the outer side. The abdomen is finely and not very closely punctured ; the basal

segment with a very distinct longitudinal, closely punctured, and slightly pubescent

impression, acuminate posteriorly and nearly extending to the apex (fig. 25 @); there is

a patch of silvery pubescence on each side at the base, and a transverse impression

behind the middle (also filled with short silvery pubescence); the lateral carina is

deeply sinuate behind the middle (fig. 25 6); there is a pubescent spot at the side of

the second segment. The basal joint of the posterior tarsi is very long.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, July 1889. 0

114 SERRICORNIA.

122. Agrilus squalus.

Niger, nitidus; capite antice neo, medio impresso; thorace disco fere levi, latera versus punctulato, disco

longitudinaliter canaliculato, angulis posticis inflatis ; elytris sat fortiter punctatis, maculis quatuor parvis

albis notatis, ad apicem divergentibus denticulatis.

Long. 43-53 lin.

Hab. Mexico, Campeche (Sallé), Tapachula in Chiapas (Hége); GUATEMALA, near

the city, Zapote (Champion) ; Honpuras (Saldé) ; Costa Rica (Sadie).

The thorax has the discoidal impression nearly as smooth as the rest of the disc;

the posterior ridge is represented by an oval swelling. The elytra have the subcosta

not very distinct; the punctuation is rather strong, not very close, and equally distri-

buted over the surface; each elytron has a small white spot near the side behind the

‘ middle and another close to the suture at a short distance from the apex.

This species was received with the name A. squalus, Chevr., attached to it, but it

appears to be undescribed.

123. Agrilus stellatus, (Tab. VII. fig. 1.)

Afneo-auratus, nitidus; capite fortiter punctato, longitudinaliter fortiter impresso ; thorace fortiter punctato,

medio canaliculato-impresso, angulis posticis inflatis ; elytris sat fortiter punctatis (punctis triangularibus),

maculis parvis sex albis notatis, apice denticulato.

Long. 5 lin.

Hab. Guatemata, San Gerdénimo (Champion); Nicaracua, Chontales (elt).

The head has the punctures moderately close together but crowded ; the impression

is deep, narrow posteriorly, the space between the impression and the eye convex. The

thorax is narrowed in front asif compressed ; the punctures are not crowded together ;

the discoidal impression is not very deep, but well marked. ‘The elytra are convex at

the base, the sutural area impressed posteriorly leaving a moderately well-marked sub-

costa; the punctures are distinctly separated from each other, distinct, except at the

suture below the scutellum, where the surface is smoother; each elytron has three

very small nearly white spots—one just before the middle, inside the subcosta ; the

second behind the middle, outside the subcosta ; the third halfway between the second

and the apex, inside the subcosta. The prosternal process is gently convex, finely

punctured, the punctures not very close together. The metasternum is nearly smooth

in the middle. The metathoracic episterna are closely and moderately finely punctured.

The abdomen is finely and moderately thickly punctured, densely and rather roughly

punctured at the sides of the basal segment.

The foregoing description is taken from the Nicaraguan specimen. The example

from San Geronimo is alittle larger than the type (6 lines); it has the head not green,

but more coppery; the punctures on the raised part of the disc finer; the elytra less

acute at the apex, the apex of each being rounded; and the spots pure white.

These differences are probably sexual.

AGRILUS. 116

124. Agrilus glabratus.

Elongatus, depressus, wneus, glaber, elytra fere nigra; capite sulcato ; thorace tenuiter haud crebre punctato,

medio leviter impresso; elytris tenuiter haud crebre punctatis, postice attenuatis, apice denticulato ; abdo-

mine margine superiore maculis quatuor parvis albis ornato.

Long. 6 lin.

Hab. Guatemaua, Coban in Vera Paz (Conradt).

The head is inclined, punctured, the punctures not crowded together ; the longitu-

dinal impression is rather deep, extending from the top of the head to a short distance

above the clypeus, transversely rugulose at the lowest part. ‘The thorax is smooth,

obscurely and not very closely punctured, narrowed in front, broadest just before the

hind angles, where there is a round swelling, on the inner side of which is a deep

round fovea; the median impression is very shallow and not well defined. The elytra

are somewhat irregularly punctured, the punctures not very close together—one

example has the punctuation very obscure and the subcosta much less distinctly marked ;

the apices are separately rounded and evenly denticulate. The prosternal chin-piece

is gently and widely emarginate. ‘The prosternum is not closely punctured ; the inter-

coxal process is a trifle widened behind the coxe, and then arcuately narrowed, almost

rounded ; the central process is at a lower level. ‘The episterna are punctured, the punc-

tures not crowded together, with a line of pubescence on the outer margin. The

abdomen has the lateral carina of the basal segment much thickened, slightly interrupted

behind the middle.

This species somewhat resembles A. squalus, but is without the dilated apex to the

elytra.

125. Agrilus prionurus,

Agrilus prionurus, Chevr. Silberm. Rev. Ent. v. p. 95 (1837) °.

Hab. Mexico! (Vasselet, in coll. Sallé).

The type-specimen of this insect (the only one known to me) differs from the fore-

going species in being larger ; in having the head nearly black instead of bronzy-green ;

the elytra slightly tinted with bronze instead of being black and with a slightly more

evident subcosta; and the punctures on the prosternum a little closer together.

These differences may be specific or sexual.

126. Agrilus incertus. .

Stenogaster incertus, Chevr. Col. Mex. Cent. ii. fasc. 6, no. 188 (1835) °.

Hab. Mexico}, Playa Vicente (Sallé).

This is a peculiar species, having no impression on the disc of the thorax, and

scarcely any trace of a subcosta on the elytra. The thorax has the posterior ridge

fairly well marked, curved. The punctuation on the underside of the body is fine ;

116 SERRICORNIA.

the punctures on the sterna rather widely separated, those on the ‘abdomen a little

closer together.

Chevrolat’s type is now in the British Museum.

127. Agrilus simplicicollis. (Tab. VII. fig. 2.)

g. Sat depressus, nitidus; capite antice aureo-viridi, sat fortiter punctato, medio longitudinaliter sulcato,

vertice purpureo-nigro, subtiliter punctulato ; thorace leviter convexo, purpureo-nigro, subtiliter discrete

punctulato ; scutello levi; elytris sat crebre evidenter punctatis, cyaneo-nigris (regione suturali enescente,

apice purpurascente, levi), maculis sex parvis albis notatis; corpore subtus neo ; prosterno crebre punc-

tato; abdomine subtiliter discrete punctulato, segmento ultimo medio longitudinaliter levissime impresso,

Long. 43 lin.

2. Paullo latior ; capite antice cyaneo ; corpore subtus cyaneo-nigro ; prosterno minus crebre punctato ; abdo-

mine medio fere levi, segmento ultimo haud impresso.

Long. 43 lin.

Hab. Guatemata, Teleman in Vera Paz (Champion).

This species is closely allied to A. prionurus, but is distinguished by the elytra

having a distinct subcosta and by the two white spots near the apex being directed

towards the suture anteriorly, while in A. prionurus they are nearly parallel or directed

outwards anteriorly. The metathoracic episterna are smooth on the inner margin,

closely and finely punctured on the outer margin. ‘The prothoracic episterna are

clothed with nearly white pubescence and there is a somewhat large whitish spot on

the side of the third abdominal segment.

The female example has a small white spot at the side of the elytra, rather behind

the middle.

128. Agrilus quadrimaculatus, (Tab. VII. fig. 3.)

Afneus, nitidus ; capite vertice subtiliter discrete punctulato, antice crebrius fortius punctato, medio sulcato ;

thorace disco #neo-nigro, tenuiter punctato, leviter bi-impresso, lateribus sat profunde impressis, macula

flava ornatis ; elytris cyaneo-zneo-nigrescentibus, sat crebre evidenter punctatis, maculis quatuor aureo-

flavo-pubescentibus ornatis; prosterno ruguloso; metasterno sat crebre subtiliter punctulato; episternis

intus levibus, extus crebre subtiliter punctulatis; abdomine sat crebre subtiliter punctulato.

Long. 5 lin.

Hab. British Honpuras (Blancaneaur); Guatemaa (Brit. Mus.).

Closely allied to A. prionurus, but of different form and colour, and distinguished

moreover by the two shallow but distinct impressions on the disc of the thorax. The

impression on the front of the head is not very deep, and occupies about one third the

width ; the punctures immediately above the clypeus are united by short curved lines.

The thorax has at the posterior angles a short, smooth, oblique ridge. The elytra are

somewhat deeply impressed at the base, the impression being rugose and marked with

a spot of golden pubescence; the subcosta is not very strongly marked.

AGRILUS. 117

129. Agrilus sexmaculatus. (Tab. VIL. figg. 4, 4a.)

Sat latus, parum convexus, eeneus, nitidus, supra cupreus vel sneus; capite crebre fortiter punctato, antice

impresso ; thorace sat crebre fortiter punctato, medio fortiter impresso, impressione basi lata; elytris

crebre fortiter subrugoso-punctatis, maculis sex flavis ornatis, duabus exterioribus parvis inconspicuis.

Long. 53 lin.

Hab. Mexico, Guanajuato, Etla (Sallé), Cuernavaca in Morelos (H. H. Smith).

The head is arched downwards; the median impression is rather broad in front,

narrowed on the vertex. The thorax has the median impression very deep, broadest

immediately above the base, narrowed in front, scarcely extended to the front margin ;

there is a swelling at the posterior angles, with a slight impression behind it at

the base ; the punctures on the disc are generally a little separated from each other

(fig. 4). The elytra have the subcosta moderately well marked ; each has two slightly

elongate-ovate spots in the sutural area, one at one third from the base and the other

at one third from the apex; halfway between these, but outside the subcosta, a very

small spot may be traced. The prosternal chin-piece is very short, deeply emarginate ;

the prosternum is not very strongly nor closely punctured, and not pubescent ; the inter-

coxal process is slightly convex in the middle, gently impressed at the sides and apex, the

apex obliquely and arcuately narrowed. The epipleura are finely and moderately closely

punctured, slightly pubescent on the outer half. The abdomen is very finely punc-

tured; the lateral carina of the basal segment is distinctly curved and slightly angular

in the middle and curved at the apex, with a yellowish spot above each curve (fig. 4 a);

the second and third segments have similar spots.

130. Agrilus fossiger. (Tab. VII. figg. 5, 5 a.)

Elongatus, eneus, nitidus, capitis vertice thoracisque disco cupreis; capite tenuiter punctato, antice profunde

canaliculato ; thorace tenuiter punctato, basi fovea rotundata sat profunde impresso ; elytris purpureo-nigris,

sat crebre punctatis, apice denticulato.

Long..5 lin.

Hab. Mexico, Vera Cruz (Sal/é).

The head is very much inclined, finely and moderately closely punctured. The

thorax is rather finely punctured, the punctures distinctly separated from each other ;

in the middle of the base there is a deep, round, smooth impression, not quite reaching

to the middle of the disc; there is a swelling at the posterior angles. The elytra are

nearly black, rather strongly punctured with cuneiform punctures, which are slightly

separated from each other, but sometimes touch in a transverse direction; the subcosta

is fairly well marked ; the apex of each elytron is rounded and finely denticulate. The

prosternal chin-piece is very slightly sinuate, almost straight. The prosternum is mode-

rately strongly and not very closely punctured; the intercoxal process with slightly

thickened margins, obliquely narrowed at the apex. The episterna are moderately

closely punctured, with a little pubescence on the outer side. The abdomen is finely

118 SERRICORNIA.

punctured ; the lateral carina of the basal segment is nearly rectilinear posteriorly

(fig. 5 a).

131. Agrilus chrysophanus.

Agrilus chrysophanus, Gory, Mon. iv. p. 212, t. 35. fig. 202°.

Hab. Mexico !, Cordova (Sal/é).

132. Agrilus aureoviridis. (Tab. VII. figg. 6, 6a.)

Aureo-viridis, nitidus; capite inclinato, rugoso, medio impresso; thorace fortiter punctato, basi medio foveata,

angulis posticis inflatis; elytris crebre asperato-punctatis, punctis cuneiformibus.

Long. 4% lin. ;

Hab. Mexico, Etla (Sallé), Chilpancingo in Guerrero 4600 feet (7. H. Smith).

The head is rugose, with a slight impression above the clypeus and a larger trian-

gular not well-defined one on the forehead. The thorax is strongly punctured, the

punctures being placed close together so as to form shorter or longer curved lines,

leaving narrow spaces between the lines; the median impression is rather deep,

moderately broad at the base, narrowed anteriorly, extending a little beyond the middle

of the disc. The elytra have the subcosta slightly marked; the punctures are cunei-

form, not crowded, but often touching each other in a transverse direction; at one

quarter from the base a slight pubescent spot may be traced just within the subcosta

and another (rather longer) at about one third from the apex, both being indistinct ; the

apex of each elytron is rounded and finely serrulate. The prosternal chin-piece is

rather deeply emarginate. The prosternum is strongly and not very closely punctured ;

the intercoxal process is scarcely convex, obliquely narrowed at the apex. The episterna

are closely punctured, with a very narrow line of pubescence on the outer edge. The

abdomen is finely punctured ; the lateral carina of the basal segment is distinctly sinuous

about the middle, slightly so at its apex, with a yellowish-grey spot above each curve

(fig. 6 a).

133. Agrilus perlucidus.

Agrilus perlucidus, Gory, Mon. iv. p. 217, t. 36. fig. 208 *.

Hab. Mexico!, Cuernavaca (Sallé), Soledad 5500 feet, and Omilteme 8000 feet

in Guerrero (H. H. Smith).

According to a specimen compared with Gory’s type by Mr. Edward Saunders, this

species is quite distinct from A. awreus, with which it is associated in the Munich

Catalogue. The lateral carina of the basal segment of the abdomen is nearly rectilinear

posteriorly, whilst it is distinctly interrupted by a notch behind the middle in

A, aureus &c. |

The specimens from Cuernavaca differ from Mr. Saunders’s example in being a little

less dull, and they have the subcosta of the elytra slightly smooth ; they bear the

name “A. rugicollis, Sturm.”

AGRILUS. 119

134. Agrilus restrictus. (Tab. VII. figg. 7, 7 a.)

Cyanescenti-viridis, sat depressus, parum nitidus ; thorace fortiter punctato, medio sulcato ; elytris confertim

asperato-rugosis. |

Long. 43 lin.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

The head is somewhat arched downwards, closely and coarsely punctured, slightly

longitudinally impressed. The thorax is very strongly punctured, the punctures

slightly separated from each other on the disc; the sides are gently arcuate; the

surface is lightly impressed on each side at the front margin; the lateral impression

extends somewhat on to the disc; there is a swelling at the posterior angles with a

round fovea behind it close to the base; the discoidal impression is broadly ovate

behind, narrowed in front. The scutellum is deeply impressed in the middle. The

elytra have the subcosta fairly well marked; the rough sculpture is even and very

coarse. The prosternal chin-piece is slightly angularly emarginate. The prosternum

is rather strongly and closely punctured, not pubescent; the intercoxal process with

its margins slightly raised; the apex is very obliquely narrowed, having the central

process at a slightly lower level. The episterna are rugosely punctured, slightly

pubescent on the outer half. The abdomen is moderately strongly punctured, slightly

wrinkled at the sides; the lateral carina of the basal segment with a slight but distinct

curve about the middle and at the apex, with a yellowish-grey pubescent spot above

each curve (fig. 7 @).

135. Agrilus delectabilis. (Tab. VII. fig. 8.)

Sat latus, depressus, cyaneo-viridis vel viridi-aureus, nitidus; capite crebre fortiter punctato, medio sulcato;

thorace sat crebre fortiter punctato, medio sat late sulcato; elytris sat crebre subasperato-punctatis,

guttis sex parvis albis notatis, apice serrulato.

Long. 43-5 lin.

Hab. Nicaracva, Chontales (Belt, Janson).

The head has the surface rather uneven; the median channel is rather deep and

wide, but well defined. The thorax is rather strongly punctured and the punctures

are distinctly separated from each other; the median channel in some lights appears

divided in the middle, the posterior part being a little larger than the anterior, and

the punctures in the impression are close together and arranged in curved lines or

circles; the posterior ridge is represented by a swelling, on the inner side of which

(close to the base) there is a small deep fovea (fig. 8). ‘The elytra have the subcosta

distinct and shining; the punctures are triangular, generally separated from each

other, especially near the suture and below the scutellum, where the surface is smoother ;

each elytron has three small white spots—one just before the middle, another at some

distance from the apex, and the third halfway between these but outside the subcosta.

The prosternal chin-piece is very gently emarginate. The prosternum is rather strongly

120 SERRICORNTIA.

punctured, the punctures separated from each other; the intercoxal process is slightly

convex, narrowed and rounded at the apex. ‘The episterna are closely punctured, with

some pubescence on the outer half. The abdomen is finely and not very closely punc-

tured; the division between the true first and second segments is marked by an

impressed pubescent line at the sides; the lateral carina is very slightly sinuous at this

point (with a pubescent spot above), as it is also at the apex of the second and third

segments.

136. Agrilus brunnipennis. (Tab. VII. fig. 9.)

Agrilus brunnipennis, Chevr. Silberm. Rev. Ent. v. p. 96°.

Hab. Mexico, Tuspan (Sad/é').

137. Agrilus fossulatus. (Tab. VII. figg. 10, 10 a.)

Elongatus, sat depressus, nitidus, eneus; capite crebre fortiter punctato, linez mediana impressa; thorace

minus crebre fortiter punctato, medio canaliculato, canaliculo postice dilatato; elytris postice gradatim

angustatis, crebre fortiter puuctatis, singulo costa sublevi instructo.

Long. 54 lin.

Hab. Mexico, Guanajuato (Sallé).

The thorax is strongly and evenly punctured, the punctures slightly separated from

each other; the median channel is deep, transversely dilated just before the base ;

the posterior ridge is represented by a considerable swelling, on the inner side of

which, close to the base, there is a deep round fovea. The elytra have the subcosta

strongly marked, shining, as is also the suture; the punctuation is rather closer in the

sutural area than on the rest of the surface; the punctures are triangular, slightly

asperate. ‘The prosternal chin-piece is gently emarginate. ‘The prosternum is strongly

punctured, the punctures not crowded; the intercoxal process is scarcely convex,

obtusely angular at the apex. The episterna are clothed with yellowish-grey pubes-

cence on the outer half, the inner half being rather finely punctured, the punctures not

crowded. ‘The abdomen is finely and not very closely punctured ; the line dividing the

true first and second segments is strongly marked at the sides; the lateral carina is

distinctly flexuous at the apex of the first, second, and third segments (fig. 10 a).

This species much resembles A. brunnipennis, but the discoidal channel. of the thorax

is more angularly dilated posteriorly, and the fovea within the posterior swelling is deeper.

The elytra have the subcosta much more prominent, and the punctuation is closer and

rougher. The lateral carina of the basal segment of the abdomen is flexuous; it is

only very slightly so in A. brunnipennis.

138. Agrilus aurilatera.

Crassus, parum nitidus, cyanescenti-eneus ; thorace crebre fortiter punctato, medio suleato; elytris sat crebre

asperato-punctatis, lateribus late cupreis vel auratis ; corpore subtus pube flavo-grisea dense vestito.

Long. 53-63 lin.

AGRILUS. 121

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn), Guanajuato (Sallé).

The head is closely rugose, impressed in front. The thorax is strongly and closely

punctured, but the punctures are slightly separated on the disc; the median channel

is deep, rather more narrowed in front than at the base; there is a slight swelling at

the posterior angles; the sides are rather straight. The elytra have the subcosta

slightly marked, and between it and the suture there is a less definite, fine, shining,

raised line; the punctures are somewhat cuneiform, generally a little separated from

each other, those in the sutural region being finer and closer than those at the sides.

The prosternal chin-piece is gently and widely emarginate. The prosternum is rather

closely and strongly punctured ; the intercoxal process obliquely narrowed at the apex,

where it is deflexed. The episterna are closely punctured. The abdomen is very finely

punctured and densely so at the sides; the basal segment has an impressed line at the

sides indicating the division between the first and second segments; the lateral carina

has a distinct curve before the apex of each of the basal segments. The whole of the

upperside of the insect is slightly pubescent. ‘The whole of the underside is more or

less clothed with yellowish-grey pubescence: it is sparse in the central parts, but close

and longer at the sides.

139. Agrilus phenicopterus.

Elongatus, crassus, postice parum angustatus, nitidus, rufo-cupreus, vel viridis, vel cyaneus; capite rugoso,

fronte impressa; thorace subquadrato, fortiter punctato, medio profunde canaliculato; elytris crebre

subrugoso-punctatis, costatis.

Long. 43 lin.

Hab. Mexico, Cordova, Tuxtla, Juquila (Sallé), Mexico city (Hoge).

The head is longitudinally impressed in front, and has a transverse impression on the

forehead. The thorax is not more narrowed at the base than in front; the punctures

are strong, close together at the sides, but on the disc they are distinctly separated

from each other; the median channel is deep, with some golden pubescence at the

bottom; there is an oblique lateral impression and a swelling at the posterior angles

representing the posterior ridge. The elytra are somewhat parallel, narrowed at the

apex; each elytron has two shining coste, which do not extend to the apex. The

prosternal chin-piece is rather straight in front, with a slight sinuosity in the middle.

The prosternum is strongly punctured, shining, the punctures not crowded; the inter-

coxal process is slightly arched posteriorly, rounded at the apex. The sides of the

sternum are sparsely pubescent. The episterna are almost without pubescence, shining,

convex, finely and closely punctured. The abdomen is finely and not very closely

punctured; the basal segment has an impressed transverse line at the sides indicating

the division between the true first and second segments; the upper margin has four

shallow impressions, which are filled with whitish pubescence; the lateral carina of

the basal segment is interrupted by the first and second impressions.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, August 1889. R

122 SERRICORNIA.

140. Agrilus quadricostatus. (Tab. VII. fig. 11.)

Elongatus, crassus, eneus (thorace elytrisque cupreis, illo medio fuscescenti), griseo-pubescens ; thorace medio

- sulcato; elytris quadricostatis.

Long. 5 lin.

Hab. Mexico, Etla (Sallé).

This species differs from A. phenicopterus in being clothed above with short grey

pubescence, with the whole of the underside densely pubescent, except the middle of

the sterna and middle of the episterna. ‘The thoracic channel is rather wider, and the

punctures on the disc are more separated. The elytra have the coste more elevated,

smooth, and longer, giving them a striped appearance. The abdomen has the lateral

carina of the basal segment only slightly notched rather behind the middle; there are

no distinct spots above.

141. Agrilus subcostatus. (Tab. VII. fig. 12.)

Viridi-cyaneus, nitidus; thorace medio sulcato, disco fere levi, nigro; elytris rufo-cupreis, rugosis, costis

quatuor parum elevatis rugosis; corpore subtus brevissime pubescenti.

Long. 32 lin.

Hab. Mexico (Brit. Mus.).

This species differs from the preceding in being much smaller; the disc of the thorax

is almost smooth, the central channel deep and without pubescence. The elytra have

each two coste, but they are not very distinct (especially the inner one), and are

roughly punctured like the rest of the surface. The pubescence on the under surface

is short and less dense ; the inner half of the episterna is bare.

The following species had not been investigated when my remarks on the genus were

written (p. 57), or are of doubtful position or locality :—

142. Agrilus fosseicollis.

Agrilus fosseicollis, Thomson, Typi Buprest., Append. p. 71°.

Hab. GuaTeMaLa!.

I am unable to locate this species.

143. Agrilus rugosus.

Crassus, subcylindricus, parum nitidus, eneus vel viridi-gneus, capite thoraceque plerumque cyanescentibus,

hoc confertim fortiter punctato, medio sulcato ; elytris rufo-cupreis, rugosis, singulis bicostatis.

Long. 34—4 lin.

Hab. Mexico, Capulalpam, Parada, Oaxaca (Sallé).

Very close to A. aurilatera, but rather smaller, With more unicolorous elytra, which

are also more closely rugose. The thorax is a little narrowed before the posterior angles ;

AGRILUS. 123

the median channel slightly interrupted in the middle, and the punctuation stronger, the

punctures crowded together on the disc.

144. Agrilus baroni.

Agrilus baroni, Lap. & Gory, Mon. ii. p. 23, t. 5. fig. 277.

Hab. Mexico %

Gory states! that the specimen he describes was without locality, but was believed

to be from Mexico.

145. Agrilus (?) rufocentralis.

Agrilus rufocentralis, Thomson, Typi Buprest. p. 89'.

Hab. Mexico 1.

** An hujus generis dubito.”—Tnh.

The following differs from all the species of Agri/us known to me in having a lateral

carina to the elytra similar to that in Paragrilus; the basal joint of the posterior tarsi

is rather short. I am doubtful whether this species should be included in Agrilus.

146. Agrilus (?) dissimilis. (Tab. VII. fig. 13.)

Elongatus, nitidus, viridis; thorace viridi cyaneo-variegato, crebre evidenter punctato, basi trifoveolata;

elytris crebre subasperato-punctatis, ad basin viridibus, dimidio apicali purpureo-cupreo vel seneo, apice

ipso plerumque viridi, lateribus carina usque ad medium instructis.

Long. 33-4 lin.

Hab. Mexico, Playa Vicente (Sa/é).

The head is moderately closely punctured, with a narrow median channel. The

thorax is transversely quadrate, slightly narrowed towards the base, moderately convex,

with a fovea inside the posterior ridge and a deeper one in the middle of the base ;

the posterior ridge is distinct, curved down to the margin. ‘The elytra have a very

slightly marked subcosta; the lateral ridge extends from the shoulder to about the

middle; the obscure purple or eneous colour sometimes occupies the apical half and

sometimes extends-nearly to the base; the apex is very finely serrate. The prosternal

chin-piece is widely but gently emarginate. The prosternum is moderately closely

punctured ; the intercoxal process is gently convex in the middle, with narrow impressed

margins, truncate at the apex. The episterna are smooth and shining, rather strongly

and not very closely punctured.

- The smaller specimen differs from the others in having the thorax entirely green,

with the posterior ridge longer, and extended more forward, reaching the margin beyond

the middle instead of about one third from the base.

124 SERRICORNIA.

PARAGRILUS.

Clinocera, Deyrolle, Ann. Soc. Ent. Belg. viii. p. 116 (1864) (nom. preoc.).

Paragrilus, Saunders, Cat. Buprest. p. 127 (1871).

It is to be regretted that in Gemminger and Harold’s catalogue, and also in Capt. Ker-

reman’s supplementary list of Buprestide, this genus is confounded with Agrilus.

It is a well-defined genus, especially by the antenne, when at rest, being received

into a groove in the under flanks of the thorax. The known species are all Central

or South American, ranging from Mexico to Monte Video.

1. Paragrilus levicollis.

Elongatus, sat angustus, depressus, supra obscure cyancus, surdus, subtus niger, nitidus; capite convexo, nitido,

medio sulcato ; thorace trapezoidali, basi trifoveolata ; elytris opacis, sparsim asperato-punctatis, parallelis,

ad apicem paullo angustatis.

Long. 3 lin.

Hab. Panama, Bugaba (Champion).

This species is allied to P. impressus (Chevr.), but is rather larger, and uniform dark

steel-blue above. The thorax is almost impunctate, and the elytra are much less

closely punctured. The head is rather deeply impressed in the middle.

2. Paragrilus impressus.

Aphanisticus impressus, Chevr. Col. Mex. Cent. ii. fase. 6, no. 145 (1835) ’.

Hab. Mexico, Alvarado!, Tuxtla (Sallé).

3. Paragrilus angulaticollis. (Tab. VII. fig. 19.)

Elongatus, depressus, supra surdus, niger; capitis vertice eneo, medio inciso; thorace brunneo-cupreo, ante

angulos anticos bene angulato, postice angustato; elytris obsolete striato-punctatis, tenuiter granulosis.

Long. 22 lin.

Hab. Muxtico, Tapachula in Chiapas (Hége).

The head is yellowish-brassy, densely and extremely finely punctured, longitudinally

sulcate, the vertex (when viewed from above) appearing triangularly excised. The

thorax is very broad just behind the anterior angles, obliquely narrowed in front of the

lateral angulation, gradually narrowed posteriorly; the disc is lightly impressed in

front and behind the middle, and there is a shallow impression at the side; at the base

there are two fovez at some distance from the posterior angles. ‘The elytra are dull

black, with closely placed lines of large, but obscure, punctures extending to rather

beyond the middle; between the lines of punctures there are series of minute shining

dots, which are also scattered over the dull apical region.

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PARAGRILUS. 125

4. Paragrilus trifoveolatus.

/Eneus, parum nitidus; capite sulcato; thorace paullo rugoso, basi trifoveolata, lateribus flexuosis, angulis

posticis inflatis; elytris creberrime sat fortiter rugosis.

Long. 2-23 lin.

Hab. Mexico, Vera Cruz (Sallé), Teapa in Tabasco (H. H. Smith).

This is a distinct species and recognizable by its uniform brassy colour and rather rugose

surface. The head has the surface finely coriaceous and rather strongly punctured,

and the punctures are slightly separated from each other; viewed from above the

vertex is rather more notched in the middle than in P. tmpressus, but not so much so

as in P. angulaticollis. The thorax is angulated at the sides just behind the anterior

angles, but the angulation is more rounded, and the sides posteriorly are more flexuous ;

the disc has a very short fine line in the middle. The elytra are uniformly somewhat

coarsely rugose.

5. Paragrilus exiguus.

Aphanisticus exiguus, Chevr. Col. Mex. Cent. i. fase. 6, no. 146°.

Hab. Mexico, Acapulco in Guerrero (Hége).

The type of this species in the British Museum is of a slightly brassy tint, with the

elytra tinted with purple. The thorax is somewhat cylindrical, parallel sided, with

some short transverse impressed lines, but not transversely rugulose. The elytra are

somewhat shining, especially at the apex, rather closely punctured, with a very light

transverse impression across the middle, and with no second transverse impression

before the apex; the apical area is distinctly punctured, the punctures well separated

from each other.

6. Paragrilus rugatulus.

Paragrilus rugatulus, Thomson, Typi Bupr., Append. p. 74°.

Differs from the type of P. ewigwus in having the thorax transversely rugulose, and the elytra rather more

uneven. The specimens are often of a blackish colour.

Length 14-2 lines.

Hab.. Muxtco1, Ventanas in Durango, Cuernavaca in Morelos, Chilpancingo and

Tierra Colorada in Guerrero (H. H. Smith), Jalapa, Oaxaca (Hoge), Orizaba (Saillé) ;

GUATEMALA, San Gerénimo (Champion); Panama, Bugaba (Champion).

The extent to which the thorax is rugulose varies considerably, even in specimens

from the same locality. If I am correct in identifying the specimens from the above-

mentioned localities as P. rugatulus, I think it open to question whether it is more

than a variety of P. exiguus.

126 SERRICORNIA.

7. Paragrilus transitorius.

P. caiguo affinis, differt tamen corpus magis purpureum, minus nitidum; elytris cyanescentibus, vage punctatis.

Long. 2-21 lin.

Hab. Mxxico, Cordova (Sallé), Teapa in Tabasco (H. H. Smith), Tapachula in

Chiapas (Hége); Guaremana, Zapote, San Gerdnimo, San Juan in Vera Paz (Champion) ;

Panama, Bugaba (Champion).

This species is doubtfully distinct from P. exiguus. The series, however, from the

above localities differ from the type in being of a less brassy colour, generally dark

purple, with the elytra dark steel-blue. They are relatively a trifle broader, the thorax

dull and faintly punctured. The elytra are punctured, but the punctuation is vague,

and at the apex there are scarcely any punctures to be distinguished.

8. Paragrilus vicinus.

Nigro-cyaneus, paullo nitidus ; capite obscure eneo, sat crebre punctulato, medio canaliculato, fronte biconvexa ;

thorace convexo, ante medium leviter angustato, transversim striolato, tenuiter ruguloso, basi plerumque

purpureo tincta; elytris obsolete punctatis, regione suturali medio et ante apicem leviter impresso, apice

leviter gibboso.

Long. 2 lin.

Hab. Panama, Volcan de Chiriqui 3000 to 4000 feet (Champzon).

This species much resembles the preceding, but is of a more decided dark steel-blue.

It differs in having the thorax slightly narrowed in front, and transversely striolate,

each stria having a small puncture. Each elytron has at the apex an elongate ovate

swelling.

9. Paragrilus lesueuri.

Brunneo-niger (vel cupreo-niger), parum nitidus; capite sat crebre punctulato, fronte biconvexa; thorace

obsolete punctato, disco ante medium puncto elongato impresso, basi quadrifoveolata; elytris post medium

paullo ampliatis, striato-punctatis, ad apicem leviter gibbosis.

Long. 13-27 lin.

Hab. Mexico, Jalapa (Hége), Tuxtla, Yolos, Cordova, Puebla, Jacale, Juquila,

Teapa (Sallé), Atoyac in Vera Cruz, La Venta 300 feet, and Tepetlapa 3000 feet, in

Guerrero (H. H. Smith), Temax in North Yucatan (Gawmer).

This species is generally a little larger than the preceding, and of a brownish tint.

The thorax is broad, rather less convex, with a shallow, elongate impression on the

disc; near the base there are some curved impressed punctured lines, but these are

often obscure. The surface of the elytra is uneven; in the sutural area there is a

slight impression at the middle, and before the middle a larger one, leaving the apex

distinctly convex.

The examples from Teapa and one from Temax are of a more coppery tint than

the others. ,

PARAGRILUS.—TAPHROCERUS. 127

10. Paragrilus eraticollis.

Minus elongatus, parum convexus, sat nitidus, nigro-sneus; capite thoraceque eneis, illo sulcato, in mare

aureo-pubescenti, hoc basi quadrifoveata; elytris striato-punctatis.

Long. 2 lin.

Hab. Mexico, Teapa in Tabasco (H. H. Smith, Sallé); British Honpuras, R. Hondo

(Blancaneaux); Panama, Bugaba, David in Chiriqui, Taboga I. (Champion).

The head is finely coriaceous, with not very distinct punctures placed moderately

close together; in the male the face is covered with golden-yellow pubescence

-yadiating from a spot in the centre. The thorax is convex, densely and finely

coriaceous, with numerous scarcely raised dots, which are only visible in certain

lights; there is an oval swelling at the posterior angle, with a curved impression (in

which there is a white line) bordering it on the inner side; at the base there are two

punctiform impressions close together in the middle, and a fovea on each side. The

elytra are somewhat shining, the surface rather undulating or uneven, with some

lines of very obscure punctures.

TAPHROCERUS.

Taphrocerus, Solier, Ann. Soc. Ent. Fr. ii. p. 314 (1883).

Species of this genus have been described from North and South America and

from Cuba.

The Central-American species may be divided as follows :—

I. Elytra with a lateral carina . . . . . . . . « . Species 1-3.

II. Elytra without lateral carina.

a. Elytra more or less spotted with white. . . . . Species 4-6.

6. Elytra without spots. . . . . . . . . . . Species 7-9.

1. Taphrocerus costatus.

Aineus, nitidus ; thoracis lateribus basique pube grisea sparsis; elytris purpurascentibus, dimidio basali crehre

punctato, apicali fere levi, medio maculis tribus fasciaque ante apicem albis ornatis, lateribus carinatis

Long. 2} lin.

Hab. Mexico, Cordova (Sallé); GuatemaLa, Coban in Vera Paz (Conradt).

The head is longitudinally canaliculate in front, with a few hair-bearing punctures

at the upper part of the channel; there is a transverse band of golden pubescerce

across the clypeus. ‘The thorax is narrowed in front and slightly at the base, the sides

rounded; the large impression at the posterior angles is rather closely marked with

large round shallow punctures, each puncture having a decumbent yellowish hair;

there are some similar punctures at the sides and near the front margin. The elytra

are long, rather flat, rather strongly sinuate below the shoulders, as broad at the middle

as at the humeral angles, narrowed beyond the middle to the apex; each elytron has

128 SERRICORNIA.

five lines of strong, large punctures which extend to about the middle (the lines are,

however, rather vague and irregular), and between the fifth line and the lateral costa

(which is strongly marked) there are two more lines of smaller punctures ; there is a little

white pubescence near the scutellum, two indistinct spots at a short distance from the

base, three more evident ones placed in a triangle at the middle, and a rather broad

white fascia before the apex; the margin has two white spots.

2. Taphrocerus fasciatus.

Enews, nitidus; elytris dimidio basali striato-punctatis, ante apicem fascia alba ornatis, lateribus costatis.

Long. 12 lin.

Hab. Panama, Caldera in Chiriqui 1200 feet (Champion).

This species differs from TZ. costatus in being much smaller, and in having fewer

punctures on the thorax. The elytra have the punctures in the basal region more dis-

tinctly arranged in lines; there are a few white hairs across the middle, which in a

fresh specimen might form spots or a band, and the lateral costa, instead of being

sinuous and following the curves of the side of the elytron, is almost straight for half

its length and parallel to the suture.

3. Taphrocerus nigritulus.

Niger, nitidus; elytris dimidio basali striato-punctatis, medio guttis duabus fasciaque ante apicem albis

ornatis, lateribus costatis.

Long. 14 lin.

Hab. Panama, San Miguel in the Pearl Islands (Champion).

This is a more convex and cylindrical species than either of the foregoing. The

head is relatively larger and more prominent. The thorax has a few punctures in the

basal impressions. ‘The elytra are less sinuate below the shoulders, so that they are

not so angulated at the middle; the basal region is punctured in lines, the apical half

nearly smooth ; the lateral carina is slightly flexuous and follows the curves of the :

margin.

4, Taphrocerus mexicanus.

Sat latus, sneus, nitidus; elytris purpurascentibus, striato-punctatis, ad apicem levibus, medio maculis tribus

fasciaque ante apicem albis ornatis.

Long. 12-17 lin.

Hab. Mexico, Guanajuato (Sallé), Tepetlapa 3000 feet, and Xucumanatlan 7000

feet, in Guerrero, Atoyac in Vera Cruz, Teapa in Tabasco (H. H. Smith); GuaTEMALa,

Chiacam, Tamahu, and Purula in Vera Paz, Duefias (Champion).

The head and thorax are shiny brassy, the latter with large shallow punctures placed

rather close together in the basal impressions. The elytra are not very convex, sub-

parallel for half their length (gently sinuate below the shoulders), and then obliquely

TAPHROCERUS. 129

narrowed to the apex, which is obtuse and serrulate; each elytron has several lines of

rather strong punctures, the lines varying somewhat in length, but seldom extending

beyond the middle, where there are generally three white pubescent spots, the middle

one of which is a little above the others; at a short distance from the apex there is a

transverse brassy punctured spot, more or less covered with white pubescence.

5. Taphrocerus guttatus.

Niger, nitidus; elytris basi striato-punctatis, gutta subbasali, fascia mediana altera subapicali albis ornatis.

Long. 12 lin.

Hab. Guatemata, San Juan in Vera Paz (Champion).

This species exactly resembles 7. nigritulus, but has no lateral carina to the elytra.

A specimen from Volcan de Chiriqui and another from Caldera, captured by

Mr. Champion, have the middle band of the elytra represented by two white spots;

and an example from Bugaba, Panama, has only one spot.

6. Taphrocerus psilopteroides.

Aneus, nitidus ; capite lato; elytris basi striato-punctatis, vix purpurascentibus, fascia mediana paullo angulata

alteraque ante apicem sneis, punctatis, griseo-albo-pilosis ornatis.

Long. 1} lin.

Hab. Mexico, Cuernavaca in Morelos (H. H. Smith); Guatemata, Chiacam and San

Gerdnimo in Vera Paz (Champion); Panama, Taboga I. (Champion).

This species is the most cylindrical of this group. It is a little shorter and narrower

than 7. guttatus. ‘The head is very broad and the thorax is consequently a little less

narrowed in front, and the posterior angles are a little less prominent. The elytra

have the shoulders a little less angular, the sinuosity below the shoulders less marked,

and the angulation at the middle less pronounced ; the lines of punctures are rather

close together and fairly regular; there is a small quadrate impression close to the

suture at one third from the base, and two brassy fasciz, one at the middle and the

other near the apex, both slightly covered with greyish-white pubescence.

I have taken the above description from the example from Chiacam. ‘The specimen

from Cuernavaca may possibly belong to a different species; it measures 12 lines in

length, and has the lines of punctures on the elytra continued beyond the middle to

the subapical fascia. |

7. Taphrocerus purpureipennis.

AEneus, nitidus; elytris purpureis, striato-punctatis, pube brevissima sparsis.

Long. 1? lin.

Hab. Panama, Taboga I. (Champion).

This species has very much the form of 7. mexicanus, but is not quite so broad, and

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, August 1889. S

130 SERRICORNIA.

the elytra are a trifle shorter. The head is sparingly punctured. The thorax is con-

stricted in front, widened behind the middle, with rather large shallow punctures

scattered over the surface, but placed more closely in the basal impressions and in the

impression on each side of the front margin. The elytra are obscure purple, as broad

just before- the middle as at the shoulders and then obliquely narrowed to the apex,

sinuate below the shoulders, with lines of punctures, which are large at the base, but

gradually become smaller towards the apex, where they are not very distinct; each

puncture bears a very short whitish hair.

8. Taphrocerus communis.

AMneus, nitidus; capite thoraceque parce punctatis; elytris striato-punctatis, calvis.

Long. 12 lin. .

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith); Guatumana, San Juan, Chiacam,

and San Gerdénimo in Vera Paz (Champion).

This species exactly resembles 7. purpureipennis, but is without the short white

hairs in the punctures of the elytra. The specimen which I have taken for the type,

from Atoyac, is uniform brassy. Most of the examples from San Gerénimo have the

elytra more olive-zeneous; whilst nearly all those from Chiacam are more coppery in

colour, with the elytra bluish-purple at the base.

Variety? A series of specimens from Teapa in Tabasco (H. H. Smith) differ from the

type in being smaller, 11-14 lines in length; they also appear to average a little

narrower. A series from Atoyac in Vera Cruz, Teapa in Tabasco (H. H. Smith), San

Gerénimo and Tamahu in Vera Paz (Champion), Bugaba, Volcan de Chiriqui 3000 to

4000 feet, and Tolé in Panama (Champion), differ from the type in being decidedly

more cylindrical in form, and in having the punctuation of the elytra a little stronger ;

they vary in length from 13-13 lines. A specimen from Torola, Guatemala, and one

from Teapa are somewhat intermediate.

9. Taphrocerus uniformis.

Olivaceo-ceneus, nitidus; elytris striato-punctatis.

Long. 2 lin.

Hab. Mexico, near the city (. H. Smith).

The head is rather sparingly punctured. The thorax is somewhat constricted in

front, widened posteriorly, but not so much as in 7. communis, with the basal impres-

sions punctured; near the posterior angles there is a short, obtuse, straight. ridge,

directed slightly inwards from the posterior angle. The elytra are striate-punctate, the

lines of punctures reaching to the apex, but the punctures gradually diminish in size.

TRACHYS.—BRACHYS. 131

TRACHYS.

Trachys, Fabricius, Syst. Eleuth. ii. p. 218 (4841).

The species described below appears to be undoubtedly congeneric with the European

Trachys troglodytes, which it very much resembles. It is the only American. species of

the genus known to me.

1. Trachys segregatus.

Oblongo-ovalis, convexus, seneus, nitidus; capite parce punctato; thorace discrete punctato; elytris sat crebre

punctatis.

Long. 1 lin.

Hab. GuateMaa, Coban in Vera Paz (Champion).

This species resembles 7’. troglodytes in many respects. It is, however, smaller and

relatively narrower, and has the elytra longer and more gradually narrowed to the

apex. The head is a little narrower, and has no median channel. The thorax is not.

quite so short, the sides more distinctly margined, and the posterior angles less

diverging; the punctures are much smaller and not very close together. The elytra

have the humeral callus more distinct and glabrous; the punctuation is irregular, and

the punctures are much smaller, moderately close together. The under flanks of the

prothorax have a few large shallow punctures occupying the greater part of the surface,

and there are somewhat similar punctures scattered over all the underside of the insect.

BRACHYS.

Brachys, Solier, Ann. Soc. Ent. Fr. ii. p. 312 (1833).

Species of this genus appear to occur throughout America. The following table may

assist in determining the Central-American representatives :—

I. Elytra with a lateral carina.

a. Elytra with tufts of hair. . . . . . . . + « « « Species 1.

6. Elytra without tufts of hair. . . . . « . Species 2-7.

II. Elytra with the lateral carina interrupted at the middle . . . Species 8.

III. Elytra without lateral carina . . . . . . . + + « + « Species 9.

1. Brachys floccosus,

Brachys floccosa, Mann. Bull. Mose. viii. p. 118 (1837)’.

Hab. Mexico, Oaxaca!, Juquila, Parada (Sad/é); GuareMaLa, San Gerénimo, Cape-

tillo, Cerro Zunil 4000 feet (Champion).

The example from San Gerénimo and another from Capetillo have the brush on the

elytra entirely black; the specimen from Cerro Zunil agrees with the Mexican examples

in having the basal portion of the brush ferruginous.

132 SERRICORNIA.

2. Brachys ovatus?

Buprestis ovata, Weber, Observ. Ent. p. 76°.

Hab. Norta America1.—Mexico, Zacualtipan in Hidalgo (Hége).

A single example, which agrees in most of its characters with the North-American

B. ovatus, but is decidedly narrower, and has the elytra more acuminate.

3. Brachys scapulosus.

Brachys scapulosa, Chevy. Silberm. Rev. Ent. v. p. 1047.

Hab. Mexico, Orizaba! (Lesueur, Brit. Mus.), Cordova (Sallé).

4. Brachys anthrenoides.

Cupreus, nitidus; elytris eeneo-cyaneis, pube fulva vestitis, albo-maculatis, post medium plaga calva ornatis.

Long. 13 lin.

Hab. Panama, Bugaba, Volcan de Chiriqui 3000 to 4000 feet, Taboga I. (Champion).

The thorax is shining coppery, with some small punctures scattered on the front

margin, and some large, very shallow, punctures placed rather close together in the

basal impressions ; these punctures bear fulvous hairs, except at the sides (especially at

the front angles), where they are white, and there are two white spots in the middle of

the base above the scutellum. The elytra are obscure steel-blue, with an elongate

patch near the side, and the apex, coppery; each elytron has three fine lines of fulvous

hairs, extending from the base to about the middle, the one next. the lateral costa

not so distinct ; between each pair of lines there are two irregular lines of unequal

punctures; the fulvous hairs form an indefinite patch on the shoulder, and a more

distinct one next to the scutellum, a vague interrupted band across the middle, and

they almost cover the apex; the white hairs form a spot near the base between the

first and second fulvous lines; there is a small elongate white spot close to the suture

at the middle; two rather larger white spots a little higher, above the central fulvous

band, and a vague white spot close to the costa, below the band; and there is a trans-

verse white spot before the apex; at the side beyond the costa there are three or four

whitish spots.

The general form of this species is somewhat that of b. ovatus, but it is relatively a

little narrower and has the elytra mcre acuminate. It is very close to B. scapulosus,

but is smaller and more acuminate posteriorly.

We have also received single examples from Teapa in Tabasco (H. H. Smith) and

Cerro Zunil and Chiacam in Guatemala (Champion) which appear to be referable to

this species.

5. Brachys distinctus.

Elongato-ovatus, purpureo-cupreus, nitidus; thorace pube fulva sparso, disco maculis duabus calvis notato;

elytris cyanescentibus, pube fulva et alba fasciatis.

Long. 17 lin,

BRACHYS. 133

Hab. Guatumata, San Isidro 1600 feet (Champion).

The thorax is marked with small punctures in front, and with large shallow punc-

tures at the base; the surface is sprinkled with fulvous hairs (with a few white ones

here and there), leaving two round approximate bare spots on the disc; at the base,

close to the scutellum, there are two fulvous spots. Each elytron has two fine lines of

fulvous hairs extending to about the middle, with a series of punctures on each side of

the lines; the basal quarter is more or less covered with whitish hairs (with a few

fulvous ones intermixed), leaving a small bare spot near the base; at the middle there

is a well-marked, moderately broad fascia of fulvous hair (bordered above and below

with white)—commencing at the lateral costa it slopes slightly upwards to the fine line

of fulvous hair nearest to the suture, and then turns obliquely down to the suture; at

a short distance from the apex there is a curved line of white hairs, widening out into

a spot near the suture; the apex is covered with fulvous hair, bordered above with

white hair.

This species is relatively longer than the preceding, with the head a little wider; it

is not so angular at the shoulders, and the elytra are more gradually narrowed poste-

riorly (less angular at the sides behind the middle), with the extreme apex slightly

obtuse and obscurely serrulate.

6. Brachys pulverosus.

Statura fere B. anthrenoidis at postice paullo minus attenuatus, major, cupreus, nitidus, sat dense fulvo-aureo-

pubescens, albo-maculatus ; elytris medio purpurascentibus, maculis fasciaque post medium calvis.

Long. 17 lin.

_ Hab. Mexico, Jalapa (Hoge).

The head and thorax are clothed with somewhat golden pubescence, but the pubes-

cence is not. dense; the thorax has two small white spots just above the scutellum.

The elytra have the markings very similar to those in B. anthrenoides, but they are

larger and leave less of the surface bare; each elytron has two lines of fulvous-goiden

pubescence, the outer one being on a slight obtuse costa, more conspicuous before and

behind the median band, and on the inner side of this costa there is a fairly well-

marked impression before the median band, and another behind it; the humeral

region and the space near the scutellum (between the suture’and the first pubescent

line) are. clothed with golden pubescence; at a short distance from the base, between

the first-and second pubescent lines, there is a small white spot; across the middle of

the elytron there is a broad band of golden pubescence (bordered above with white),

obliquely sinuate above near the suture; behind this there is a rather broad space almost

without pubescence; and near the apex there is a rather broad crescent-shaped white

spot (not quite reaching the suture, but extending beyond the lateral costa), followed

by golden pubescence to the apex, with a small white spot near the outer angle; the

median band beyond the lateral costa is golden anteriorly and white posteriorly.

1384 SERRICORNIA.

7. Brachys letus.

Leete cyaneus (vel violaceus), nitidus ; thorace parce albo-pubescenti ; elytris fascia mediana, altera post medium

apiceque albo-pubescentibus.

Long. 13-12 lin.

Hab. Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui 2000 to 3000 feet

(Champion).

This species has much the form of B. anthrenoides, but has the elytra a little behind

the middle as wide as at the shoulders and less acuminate at the apex. The thorax

has some white hairs scattered over the surface, without forming spots. The elytra

have the lateral costa very near the side, so that very little of the margin is seen when

viewed directly from above; there is a band of very fine greyish-white pubescence a

_ little before the middle, and a rather more distinct but narrower one at a short distance

from the apex; the apex of each elytron has a white spot, and near the base there are

traces of two lines of white hairs. The apex of the abdomen has a series of short, not

very acute teeth.

The specimen from Bugaba differs in being of a more violet colour, and is of a stouter

build, with the apex of the abdomen simple. It is probably the female of the same

species.

8. Brachys dimidiatus.

Sat latus, parum convexus, nigro-eneus, cupreo-tinctus ; thorace elytrisque basi pallide flavo-pubescentibus, his

ante apicem guttis quatuor flavis ornatis.

Long. 13 lin.

Hab. Guatemata, Cerro Zunil 4000 feet (Champion).

This is a rather broad species compared with any of the foregoing. The head has

scarcely any pubescence. The thorax is entirely covered with yellow pubescence.. The

elytra have rather more than the basal half covered with pubescence, leaving only a

brown spot below the shoulder; the posterior border of the pubescent part has a small

emargination near the suture; in the apical area there is a small spot close to the

margin, and a slightly larger dorsal one; the apex has a little pubescence; the lateral

costa is distinct at the shoulder, sinuous below the shoulder, effaced behind the middle,

but distinct towards the apex.

9. Brachys simplex. (Tab. VII. fig. 14.)

/Eruginosus, nitidus ; capite thoraceque cupreis, parum pubescentibus; elytris subtiliter crebre punctulatis,

griseo-maculatis, plaga suturali ante medium fasciaque post medium calvis nitidis, costa laterali nulla.

Long. 23 lin.

Hab. GuatTeMALa, San Gerdnimo (Champion).

This species in general appearance resembles B. floccosus (without the tufts of hair

on the elytra), but is relatively a little longer and narrower, with the elytra more

BRACHYS.—LIUS. 135

gradually narrowed at the apex. It is at once distinguished from all the preceding

species by the absence of the lateral costa to the elytra. The head and thorax are very

sparsely pubescent, but there are two small spots at the base above the scutellum.

The elytra are closely and finely punctured, except an elongate ovate space on the

suture before the middle, and a rather broad fascia behind the middle; the short pale

grey pubescence is distributed over the punctured surface, but does not form any very

distinct markings; before the apex, however, there is a well-defined slightly oblique

band, which does not quite reach the suture, and there is a vague spot at the apex;

each elytron has an oblong impression at some distance from the base, and two

elongate impressions behind the middle in the bare fascia.

LIUS.

Lius, Deyrolle, Ann. Soc. Ent. Belg. viii. p. 219 (1863).

The species hitherto recorded as belonging to this genus are all South American.

1. Lius ares.

Lius ares, Saund. Ent. Monthly Mag. xiii. p. 49 (1876) *.

Hab. British Hoypuras, R. Sarstoon (Blancaneaur); Panama, Bugaba 800 to 1500

feet, Volcan de Chiriqui 2000 to 6000 feet, Boquete 3500 feet, Caldera 1200 feet, Tolé

(Champion).—Amazons, Santarem 1}, Kgat, Parad}.

I am unable to separate the specimens collected by Mr. Champion from the type of

L. ares. The head in the type isa trifle broader and a little more excavated; but

without a series of specimens from Brazil I cannot venture to consider this a specific

difference. The Central-American examples vary slightly in width. Out ofa series of

over fifty specimens only three have the head entirely blue, all the rest having the lower

part of the face eneous as in the type of Z. ares. The broader examples have the

apical segment of the abdomen gently emarginate in the middle, the margin furnished

with slight obtuse serrations, only visible under a microscope. The specimens with

the head blue are a little narrower than the others, and have the apical segment of the

abdomen narrower and without serrations.

The majority of the specimens are blue, with shades of purple on the thorax; one of

those from Bugaba and two from Volcan de Chiriqui are almost entirely purple. Five

examples from Boquete are a little larger than most of those from Volcan de Chiriqui,

and in these the purple colour prevails.

9. Lius dissimilis, (Tab. VII. fig. 18.)

Rufo-cupreus, nitidissimus; thorace punctato; elytris striato-punctatis, postice bi-impressis; corpore subtus

geneo-cupreo, antennis pedibusque nigrescentibus.

Long. 12 lin.

Hab. Guatemata, near the city 6000 feet (Champion).

136 SERRICORNIA.

Rather shorter and less convex than Z. ares. The head is moderately broad, not

very deeply impressed in front, with the central impressed line and the mouth brassy.

The thorax has distinct punctures placed not very closely together all over the surface.

The elytra are not quite so broad behind the middle as at the shoulders, and then

narrowed to the apex (being a little shorter than in L. ares, they are not quite so

gradually acuminate at the apex); they have fine but distinct punctures, which show

a tendency to form lines; there is a shallow, slightly rugulose impression at the side,

below the shoulder, and another behind the middle; and there is an oblique fairly

well-marked impression at some distance from the apex, nearly touching the suture.

A single specimen from Cordova, Mexico (Sallé), may perhaps be a variety of this

species. It differs in being uniformly brownish-eneous above; and the elytra are a

trifle more acuminate, and have an additional round impression in the middle of the

disc of each.

A single example from Guatemala city (Champion) differs from the type in being

smaller, 1$ lines long, of a brassy colour, very slightly tinted with coppery, with the

punctuation of the elytra rather more irregular.

3. Lius variabilis.

Convexus, nitidissimus, subtus niger; capitis vertice, thorace scutelloque aureo-eneis ; elytris elongatis, postice

attenuatis, striato-punctatis, obscure viridi-eruginosis, vel rufo-purpureis, vel cyanescentibus, ante apicem

levissime oblique impressis.

1 1],

Long. 13-13 lin.

Hab. Guatemata, Chiacam, San Joaquin, and San Gerdénimo in Vera Paz (Cham-

pion).

This is a comparatively long and narrow species. The head is not very broad,

impressed in front, with the lower part of the base obscure green, the vertex golden-

brassy. The thorax is not much narrowed in front, with the sides gently arcuate,

with a few punctures scattered over the surface, especially at the base. The elytra are

rather long, distinctly punctured in lines, with a few punctures on the interstices ;

a little narrower before the middle than at the shoulders, and then obliquely and

gradually narrowed to the apex.

The majority of the specimens have the elytra of a dark bluish-green, often tinted

with reddish-coppery at the sides, this latter colour sometimes spreading nearly all over

the surface; one example has the elytra rich reddish-copper, verging on purple.

These varieties all occur at San Gerdnimo with the typical form.

4, Lius parvulus.

Niger, nitidissimus ; capite antice «neo; elytris striato-punctatis, cyaneis vel viridi-cyaneis.

Long. 1-13 lin.

Var. Capite thoraceque lete cupreis vel cupreo-eneis.

Hab. Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui 2000 to 4000 feet,

Taboga I. (Champion).

LIUS.—PACHYSCHELUS. 137

This species agrees with the preceding in form, but perhaps has the elytra a trifle

shorter. The head has the lower part of the face brassy, except in two or three

examples. The punctures on the thorax are few and very fine. The elytra are

striate-punctate ; with the usual oblique impression before the apex very shallow.

Out of forty-eight examples only ten have the head and thorax coppery; they were

taken with the specimens with the black thorax at Bugaba, except one, which is from

Zapote, Guatemala.

PACH YSCHELUS.

Pachyschelus, Solier, Ann. Soc. Ent. Fr. 1. p. 318 (1838).

Brachys, pars, Laporte & Gory, Mon. ii. p. 7.

With the exception of two from the Malay Archipelago, all the species of this

genus are American, these ranging from the United States to Peru.

The structure of the apex of the abdomen of the males appears to afford good

specific characters. Of several species Mr. Champion obtained long series, and when-

ever this has been the case I have found the arrangement and form of the teeth constant.

The teeth are, however, evidently liable to be worn and occasionally broken, but a little

experience enables one to see when this is the case. A few specimens have been met

with in which the terminal segment is evidently malformed: a very notable case is

figured on Tab. VIII. fig. 13.

1. Pachyschelus constans.

Late ovalis, parum convexus, niger, nitidus; capite thoraceque aureo-eneis; elytris viridi-cyaneis, subtiliter

striato-punctatis.

Long. 13 lin.

Hab. Panama, Volcan de Chiriqui 2000 to 4000 feet (Champion).

The head is lightly longitudinally impressed in front, with numerous distinct punc-

tures placed not very close together. ‘The thorax is very slightly impressed at the sides

- before the posterior angles; there are a few small punctures scattered over the surface.

The scutellum is-smooth and coppery. The elytra are rather dark bluish-green,

moderately convex, with lines of very fine punctures, and with some fine punctures in

the interstices; as broad as the thorax at the base, slightly widened to a little before

the middle, the side between the shoulder and the widest part nearly rectilinear, then

obliquely narrowed to the apex, the curvature being very slight; at the side below

the humeral callosity there is a distinct but not very large impression, with a distinct

swelling behind it.

One example differs from the thirty-seven others in having the elytra purple.

: BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1889. T

138 SERRICORNIA.

2. Pachyschelus compactus. (Tab. VII. figg. 15, 15a*.)

3. Breviter ovalis, convexus, niger, nitidus; capite thoraceque nigro-cyaneis; elytris cyaneis vel purpura-

scentibus, punctatis; abdominis apice dentibus brevibus truncatis sex vel septem armato.

©. Capite thoracisque lateribus aureis vel cuprescentibus; thorace medio scutelloque nigro-cyaneis vel

purpureo-nigris ; elytris cyaneis.

Long. 1 lin.

Hab. Panama, Bugaba 1000 feet, Volcan de Chiriqui 2500 to 4000 feet (Champion).

This is a short oval species, only a little more narrowed behind than in front. The

head has some distinct punctures scattered over the surface. The thorax, when seen

under the microscope, has extremely fine coriaceous sculpture, with somewhat large,

but very shallow, punctures here and there; these large punctures are scarcely

noticeable in the male, but are a little more conspicuous and more numerous at the

sides in the female. The elytra at the humeral callosity are a trifle wider than the

base of the thorax, very slightly narrowed to the middle and then more rapidly —

narrowed to the apex, with no angulation at the side; they have the basal half

distinctly punctured, the punctures ranging themselves in lines; the apical area has very

vague punctuation ; there is a small impression at the side below the shoulders.

Twelve males and ten females.

One example from Bugaba has the elytra dark green, another has them somewhat

purple.

The following appear to be varieties of this species :—

1. Niger; capite aureo; elytris cyaneis. 9. 17 lin.

Hab. Panama, David (Champion).

One example.

2. Niger; elytris vix cyanescentibus. 9. Vix 1 lin.

Hab. Panama, David (Champion).

Two examples.

3. Niger; capite thoraceque lete rufo-cupreis; elytris viridi-cyaneis. Q. 14 hn.

Hab. Paxama, Volcan de Chiriqui (Champion).

One example.

4, Niger; capite thoraceque lete rufo-cupreis, hoc discrete punctato; elytris cyaneis. ¢. 1 lin.

Hab. Panama, San Miguel in the Pearl Islands (Champion).

This differs from all the preceding in the sculpture of the thorax being smoother,

with the usual shallow punctures, but with small but distinct punctures not very far

apart all over the surface.

It is not improbably a distinct species.

* The generic name is erroneously written Puchyscelus on the Plate.

PACHYSCHELUS. 139

5. Niger; elytris cyaneo-viridibus. 2. 1 lin.

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

This closely resembles variety 2, but the large shallow punctures on the thorax are

rather more numerous and more distinct.

6. Niger; capite thoraceque aureis vel cupreis ; elytris cyaneis vel cyaneo-viridibus. ¢. 1 lin.

Hab. Mexico, Atoyac in Vera Cruz, Teapa in Tabasco (H. H. Smith); GuateMata,

San Juan and Chiacam in Vera Paz (Champion).

Five examples have the thorax rather smooth, with the shallow punctures very

distinct. A sixth example from San Juan has the ground-sculpture more distinctly

reticulate (almost granular) than in any of the preceding; this specimen was mounted

on the same card as one of the following.

7. Subtus niger; supra aureo-cupreus vel rufo-cupreus; elytrorum sutura marginibusque anguste cyaneo-

tinctis. 9. 1 lin.

Hab. British Honpuras, Belize (Blancaneaux) ; Guatemata, El Tumbador 2500 feet,

San Juan in Vera Paz (Champion).

Six examples from Guatemala and two from British Honduras; these last and one

from El Tumbador are of a golden colour, with the margin of the elytra coppery-red.

All these specimens have the thorax rather smooth, wath the shallow punctures very

distinct.

My first inclination on examining these specimens was to consider varieties 5 and 6

as a male and female of a distinct species, with smoother thorax and more distinct

large punctures, having its habitat extending from Vera Cruz into British Honduras.

The only specimen, however, of variety 6 received with variety 7 differs considerably

in the sculpture of the thorax from the other specimens of variety 6. And variety 5,

a female, from Teapa (received with one of variety 6) has nearly the coloration of the

typical male, although it has the more distinct large punctures on the thorax as in

variety 6.

8. Pachyschelus thoracicus.

Oblongus, niger, nitidus; capite thoraceque rufo-cupreis vel aureo-eneis; elytris cyaneis, usque ad medium

fere parallelis, postice oblique angustatis, tenuiter striato-punctatis.

Long. 13 lin.

Hab. Guatemata, Capetillo, Chiacam in Vera Paz (Champion).

The head has a small impression in front, and there are a few fine punctures scattered

over the surface. The thorax is very short and broad, and not so much narrowed in

front as in the preceding species; there are a few fine punctures at the sides. The

elytra are almost parallel for about half their length, and are then obliquely narrowed

140 SERRICORNIA.

to the apex, with a well-marked impression below the shoulder; there are some lines of

small punctures, with some smaller punctures here and there in the interstices. In

the specimen with the brassy thorax from Capetillo these lines of punctures are almost

entirely wanting.

A single example from Cordova, Mexico (Sallé), with purple elytra may be referable

to this species; but it has the elytra a trifle sinuate at the sides below the shoulders

and the lines of punctures not very distinct.

This species is very close to the preceding, but is distinguished by the more parallel

elytra.

4. Pachyschelus hydroporoides.

_ Ovalis, convexus, niger, nitidus; capite thoracisque lateribus parce subtiliter punctatis; elytris evidenter

crebre punctatis, postice arcuatim angustatis.

Long. 1 lin.

_ Hab. British Honpuras, R. Hondo, Belize (Blancaneaur); Guatemala, Chacoj and

San Geronimo in Vera Paz (Champion) ; Costa Rica (Van Patten); Panama, Volcan de

Chiriqui 3000 to 4000 feet (Champion).

This is a very convex and regularly oval species, calling to mind various Hydroport of

the H. lepidus group; but it is rather broader than the last-mentioned insect. The

head and thorax are not so shining as the elytra, with some very fine punctures scat-_

tered over the surface, except in the middle of the thorax. The elytra are moderately

strongly punctured, the punctures placed more or less in lines; the impression below

the shoulder is very slight.

Two examples, one from San Gerénimo and one from Belize, have the head slightly

brassy.

All the specimens appear to be females.

5. Pachyschelus ovalis.

Ovalis, convexus, niger, nitidus; capite aureo-eneo; thorace viridi-cyaneo, punctato; scutello eneo; elytris

cyaneis, vage striato-punctatis.

Long. 13 lin.

Hab. British Honpuras, R. Hondo (Blancaneaux); GuatemMata, San Gerdénimo and

Chiacam in Vera Paz, El Tumbador 2500 feet (Champion). .

This species closely resembles the preceding ; it differs, however, in coloration and in

having the thorax rather strongly punctured, not only at the sides but on the disc as

well, the punctures not very widely separated from each other.

A single example from Mexico, Guerrero ({ége), appears to be referable to this

species, but has the head dark green.

PACHYSCHELUS. 141

6. Pachyschelus fulgens. (Tab. VII. fig. 17.)

Ovatus, nitidus, subtus niger; capite thoraceque aureis viridi-tinctis ; elytris rufo-cupreis. ¢.

Long. 12 lin.

Hab. Guatemata, Coban in Vera Paz (Conradt).

This is less convex and less regularly oval than the preceding species, being more

rounded in front and more narrowed posteriorly. The head and thorax are brassy,

appearing very slightly green in some lights. The head is distinctly but not closely

punctured. ‘The thorax has distinct punctures scattered over the surface, and under a

high magnifying-power a few smaller punctures are visible (under the microscope the

whole surface is seen to be densely and extremely finely punctured); the sides at the

middle are slightly rugose close to the margin. The elytra at the base are not broader

than the base of the thorax; they are a trifle wider below the shoulders, and are then

arcuately narrowed to the apex; reddish-coppery, verging into brassy at the apex;

finely and irregularly punctured, with some more distinct punctures in the basal half;

the lateral impression is rather large and somewhat triangular. The terminal segment

of the abdomen is slightly narrowed at the apex, with four equal acute teeth on each

side (placed slightly obliquely), the two sets of teeth separated by a wide space, the

margin here being rectilinear (fig. 17).

7. Pachyschelus communis. (Tab. VIII. fig. 3.)

Ovatus, post medium attenuatus, nitidus, subtus niger ; capite viridi-aureo ; thorace medio nigro, lateribus aureis

viridi-tinctis, rugosis; scutello nigro; elytris cyaneis, sat fortiter punctatis, ad apicem levioribus. ¢ 9.

Long. 13 lin.

Hab. Panama, Taboga I. (Champion).

The head is finely and distinctly, but not closely punctured. The thorax is smooth

on the disc, with very distinct punctures scattered over the surface and smaller punctures

interspersed between these; the sides are golden, this colour extending from the margin

to a line drawn from the posterior angle to the inner margin of the eye; this golden

part is rugose. The elytra are dark blue, verging into green, somewhat strongly punc-

tured, but smoother at the apex, rather long, as broad at the base as the base of the

thorax, subparallel to the middle of their length, and then obliquely narrowed to the

apex (or even very slightly sinuate behind the middle), the sides being very obtusely

but distinctly angular at the middle; the lateral impression is moderately large. ‘The

apical segment of the abdomen of the male has three nearly equal acute teeth on each

side (placed obliquely); the two sets of teeth separated by a rather wide space (fig. 3).

8. Pachyschelus familiaris. (Tab. VIII. fig. 9.)

- Ovatus, post medium angustatus, nitidus; capite antice viridi-aurato; thorace fere nigro, lateribus anguste

viridi-auratis ; scutello nigro; elytris purpureis vel violaceis, punctatis. ¢ 2.

Long. 13 lin.

142 SERRICORNIA.

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

This species is so very close to P. communis that I separate it with reluctance. The

colour is, however, different, and the rugose golden-green margins to the thorax are

narrower, intermediate in this respect between P. communis and P. purpuretpennis.

The terminal segment of the abdomen of the male has an arcuate emargination in the

middle, with three very short teeth on each side (placed obliquely), the outer tooth

rather smaller than the others (fig. 9).

One male and one female. The former has the elytra purple, the latter has them

violet.

9. Pachyschelus incertus. (Tab. VIII. fig. 4.)

Ovatus, post medium attenuatus, nitidus, subtus niger; capite cupreo-aureo; thorace medio cyaneo-eneo,

nitido, lateribus late cupreo-aureis, confertim subtiliter rugosis; elytris purpureis. <6.

Long. 14 lin.

Hab. Panama, Taboga I. (Champion).

Very close to the preceding, but a trifle broader. It differs in having the rugose

surface at the sides of the thorax much more extended, and even the disc is sculptured

somewhat in the same way, but much less strongly. The terminal segment of the

abdomen has three teeth on each side of the apex (placed obliquely), the innermost the

strongest, the second and third each a little smaller; the two sets of teeth separated by

a rather wide space, the margin here being rectilinear (fig. 4).

A single male example from Tolé, Panama, differs from the type in being narrower

and in having the rugose surface at the sides of the thorax much less extended. The

head is tinted with green in front. The thorax is nearly black, with the sides narrowly

bordered with blue-grey. The elytra are purple. The form of the apex: of the abdo-

men is nearly the same, but the teeth are a trifle shorter.

10. Pachyschelus octodentatus. (Tab. VIII. fig. 5.)

Ovatus, post medium attenuatus, nitidus, subtus niger; capite antice viridi; thorace medio nigro-sneo, late-

ribus late viridibus vel aureo-cupreis, rugosis; scutello nigro; elytris cyaneis, sat fortiter punctatis, ad

apicem levioribus. ¢ @.

Long. 13 lin.

Hab. Panama, Bugaba, David (Champion).

This closely resembles P. communis, but the coloured portion of the sides of the

‘thorax is much broader, leaving about one third in the middle dark. The terminal

segment of the abdomen of the male is narrowed at the apex and has eight acute

equidistant teeth arranged in a curve, the central pair being a little smaller than the

outer ones (fig. 5).

11. Pachyschelus robustus. (Tab. VIII. fig. 10.)

Ovatus, post medium attenuatus, nitidus, subtus niger; capite thoracisque lateribus viridi-auratis vel

PACH YSCHELUS. 143

eneis, thoracis disco scutelloque nigris; elytris cyaneis, viridi-cyaneis vel purpurascentibus, punc-

tatis. ¢ 9.

Long. 1,8; lin.

Hab. Guatemata, San Geronimo (Champion).

This species closely resembles P. communis in general form, but is decidedly broader

and is larger. The thorax has the rugose sculpture at the sides rather more extended than

in P. communis, but not so much as in P. octodentatus ; there are numerous large shallow

punctures towards the sides, especially near the posterior angles. The terminal segment

of the abdomen of the male is very similar to that of P. octodentatus, but the apex is

less produced; there are eight teeth arranged in a curve, but these are rather stronger

than in P. octodentatus, the central pair being distinctly wider than the outside ones

(fig. 10).

12. Pachyschelus diversus. (Tab. VII. fig. 16.)

Ovalis, nitidus, subtus niger, supra cyaneus; thorace medio scutelloque fere nigris; elytris sat fortiter

punctatis. ¢.

Long. 13 lin.

Hab. GuateMALa, Chiacam in Vera Paz (Champion).

This species is very close to P. communis, but is a little narrower and has the elytra

less distinctly angular at the sides. ‘The sides of the thorax have the rugose surface

less clearly limited, and this part is only a little paler bluish-green instead of being

brassy. The terminal abdominal segment of the male has three similarly formed teeth

on each side of the apex, but the space in the middle is wider and more open (less

V-shaped), and the first tooth is smaller than the second (fig. 16).

13. Pachyschelus aubins. (Tab. VIII. fig. 6.)

Ovalis, nitidus, subtus niger, supra cyaneus; capite thoraceque medio paullo viridi-aureo-tinctis ; ; elytris

punctatis. ¢.

Long. 13 lin.

Hab. Guatemata, Teleman in Vera Paz (Champion); Panama, Volcan de Chiriqui

2000 to 4000 feet (Champion).

I am unable to give any characters by which this species may be distinguished above

from P. diversus, but the terminal segment of the male is differently shaped; this has

a small triangular notch in the middle, with a broad, angularly emarginate process on

each side, and a small acute tooth on the outside at a lower level (fig. 6).

14. Pachyschelus affinis. (Tab. VIII. fig. 7.)

Ovatus, nitidus, cyaneus. d.

Long. 13 lin.

Hab. Panama, Bugaba, Volcan de Chiriqui 3000 feet, Pea Blanca 3000 feet

(Champion).

144 SERRICORNIA.

This insect exactly resembles P. dubius, but is a trifle larger. It is only distin-

euishable by the male-characters. The terminal segment of the abdomen has a rather.

wide V-shaped incision in the middle, with a very strong tooth on each side of it, next

to which is a less strong and slightly shorter tooth, and on the outside a small acute

tooth at a lower level (fig. 7).

A single example from each of the above localities.

15. Pachyschelus purpureipennis. (Tab. VIII. fig. 8.)

Ovatus, post medium angustatus, nitidus, subtus niger: capite thoraceque nigris vel eneis, elytris purpureis.

Long. 17 lin.

Hab. Panama, Bugaba, Volcan de Chiriqui 3000 feet (Champion).

This species resembles P. diversus in form; it is perhaps a little less narrow, but is

narrower than P. octodentatus and less angular at the sides. The head and thorax are

uniform black or brassy; the latter is rather smooth in the middle, vaguely punctured

at the sides with fine and larger punctures, but without the rugosity present in P. octo-

dentatus. The elytra are purple, and are moderately finely punctured. The terminal

segment of the abdomen of the male has eight nearly equidistant teeth arranged in a

curve as in P. octodentatus, but the central pair are a little larger (not longer) than the

outer ones (fig. 8).

A single example from Chontales appears to be referable to this species.

16. Pachyschelus ardens. (Tab. VIII. fig. 1.)

Oblongo-ovatus, nitidus, subtus niger; capite thoraceque viridi-aureis, hoc medio cuprescenti, fortiter discrete

punctato; elytris cyaneis vel purpureis, punctatis, post medium arcuatim attenuatis. ¢ Q.

Long. 14 lin.

Hab. Mexico, Cordova (Sallé).

This species is more elongate and more oblong than any of the preceding. The

thorax is less narrowed in front; the posterior angles are less directed backwards,

slightly blunted at the point, and projecting slightly beyond the shoulders of the elytra

and not fitting close to them ; the surface is nearly smooth, with some slight rugosity

only close to the margin; the punctures are very distinct and are not placed near

together.. The elytra are relatively longer, and less obliquely attenuated at the apex.

The male has the terminal segment of the abdomen obliquely narrowed, the apex

with eight short teeth arranged in.a slight curve, the middle ones a little. larger than

the outer ones (fig. 1).

Two examples, male and female, received with the above, differ from the type in

having the head and thorax nearly black and the elytra brownish-brassy. The terminal

segment of the abdomen of the male is unfortunately asymmetrical, and I am therefore

unable to say what its normal form would be. |

PACHYSCHELUS. 145

17. Pachyschelus secedens. (Tab. VIII. fig. 2.)

Oblongo-ovatus, nitidus, niger; capite antice thoracisque lateribus eneis, hoc fortiter discrete punctato ;

elytris cyaneis. ¢ Q.

Long. 13 lin.

Hab. Muxico, Tupataro in Guanajuato (Hége).

This species is very near to P. ardens, but is of a different coloration and is more

depressed. The punctuation of the thorax is less distinct. The elytra are longer

and do not begin to narrow posteriorly till behind the middle, so that they appear

more parallel. The male characters in the terminal segment of the abdomen are some-

what uncertain, as none of the specimens have this part in good condition; the most

perfect examples have the apex produced and truncated, with a slight notch in the

middle, and two very small teeth close together at the outer angle of the truncature

(fig. 2); the specimens are, however, not quite alike, nor are they quite symmetrical.

A single example from Cordova and three from Northern Sonora (Morrison) appear

to be referable to this species, but the latter have the thorax more broadly margined

with brassy.

18. Pachyschelus cyaneus.

Brachys cyanea, Gory, Mon. iv. p. 344, t. 58. fig. 340+.

Hab. Mexico, Teapa in Tabasco (H. H. Smith); Guatemata, San Juan in Vera Paz,

Fl Tumbador 2500 feet (Champion); Panama, ‘Taboga I. (Champion).—GuIANA,

Cayenne (Brit. Mus.); Braziu}.

The terminal segment of the abdomen of the male is somewhat narrowed, with a

deep, narrow incision in the middle, a somewhat obtuse tooth on each side of it,

then two broad truncate teeth, and a small acute shorter tooth on the outside. A

male specimen from Cayenne shows the same structure, but the teeth are a little

shorter.

19. Pachyschelus discoidalis. (Tab. VIII. fig. 11.)

Rotundato-ovalis, convexus, nitidus, subtus niger; capite violaceo (¢ ) vel viridi-wneo (2); thorace elytro-

rumque marginibus violaceis ; scutello elytrorumque disco rufo-cupreis.

Long. 13 lin.

Hab. Panama, Volcan de Chiriqui 3000 to 4000 feet (Champion).

This very handsome species is much more rotundate than any of the preceding. The

thorax is nearly smooth, with the sides finely granular. The females have the anterior

angles brassy-green. ‘The elytra fit close to the thorax at the base, gradually widen for

one third their length, and are then arcuately narrowed to the apex; striate-punctate,

with a few punctures on the interstices; reddish-coppery, with a broad bluish-purple

margin. The terminal segment of the abdomen in the male is not produced, but has

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1889. | U

v) —

146 SERRICORNIA.

six nearly equal short broad truncate teeth, with an indication of a small one on the

outer side (fig. 11); one example, which appears to have the teeth much worn, does not

show these small teeth.

20. Pachyschelus granulosicollis. (Tab. VII. fig. 20.)

Oblongus, depressus, post medium oblique attenuatus, subtus niger; capite viridi-sneo, nitido, vertice confertim

subtiliter granuloso; thorace brevissimo, lato, viridi-aureo, omnino confertim subtiliter granuloso, surdo,

punctis minutis interspersis; scutello lato, obscure seneo, polito; elytris rufo-cupreis (dorso fuscescente),

punctatis. 9.

Long. 13 lin.

Hab. Guatema.a, San Gerdnimo (Champion).

This is a somewhat short and broad species. The elytra at the base are not wider

than the base of the thorax, but are gradually widened to a little behind the middle

and then obliquely narrowed to the apex; the surface has a somewhat wrinkled

appearance, and there are three or four lines of punctures in the basal half; the

lateral impression is strongly marked.

21. Pachyschelus deplanatus. (Tab. VIII. fig. 12.)

Lius deplanatus, Chevr. in Silbermann’s Rev. Ent. v. p. 104".

Hab. Mexico, Orizaba!.

The type-specimen of this insect, now in the British Museum, is a female. It is an

elongate oblong-ovate depressed species, very unlike any but the following. A specimen

from M. Sallé’s collection measures 2 lines, but does not otherwise differ from the type.

Three specimens from San Gerénimo may be referred to this species, but they appear

to have the elytra a trifle shorter. The terminal segment of the abdomen in the male

is not much produced at the apex, the produced part slightly arcuate, with eight teeth ;

the outer tooth at each end of the series is acute, and has its apex directed outwards,

the six others are broad and almost truncate (fig. 12).

22. Pachyschelus aversus. (Tab. VIII. fig. 13.)

Late ovatus, depressiusculus, nitidus, supra purpureo-cyaneus ; elytris sat fortiter punctatis.

Long. 1,9, lin.

Hab. Mexico, Cordova (Sal/é).

This is very like the preceding, but is distinctly shorter and broader, with the elytra

relatively shorter and more rapidly narrowed to the apex. ‘The head and thorax are

blackish-blue ; the elytra dark purple-blue. The thorax has some small punctures

scattered over the sides. The terminal segment of the abdomen of the male is injured

in the specimen before me, but appears to have had ten teeth: the outermost tooth is

very short and conical, directed outwards, the next one very small and acute; the next is

much larger, conical, very acuminate at its apex, directed outwards; the next is a little

PACHYSCHELUS. 147

smaller, acute, obliquely directed outwards; the fifth (next to the central line) is of

nearly the same form as the fourth (fig. 13).

23. Pachyschelus astreeus.

Oblongo-ovalis, brevis, convexus, nitidus; capite thoraceque cupreo-aureis; elytris cyaneo-eruginosis, basi

purpureo-tinctis, sat fortiter punctatis.

Long. 13 lin.

Hab. Mexico, Cordova (Sallé), Atoyac in Vera Cruz (H. H. Smith).

This is a very short convex species, about one-fifth longer than broad. The head

and thorax are brassy-golden, tinted with coppery towards the sides, with small punc-

tures scattered over the surface. ‘The scutellum is brownish-eneous. ‘The elytra are

very convex, just below the scutellum ; almost parallel from the base to a trifle beyond

the middle, and then very obliquely narrowed to the apex, with lines of moderately

strong punctures, the intervals almost smooth.

A single specimen from Cuernavaca in Morelos (H. H. Smith) differs from the others

in being distinctly narrower, and in having the elytra more strongly punctured, the

intervals also having more distinct punctures.

All the examples are females.

24. Pachyschelus modestus. (Tab. VIII. fig. 14.)

Ovalis, leviter convexus, sat nitidus; capite thoraceque nigro-cyaneis, confertim evidenter punctatis ; scutello

nigro ; elytris cyaneis, striato-punctatis.

Long. 13 lin.

Hab. Panama, Bugaba (Champion).

This is a somewhat broad, regularly ovate species, a little more narrowed behind

than in front. The thorax is very obscure blackish-blue, with the margins vaguely

tinted with purple; it is very densely and rather strongly punctured all over. The

elytra at the base are as broad as the base of the thorax, a little wider below the

shoulders, and then arcuately narrowed to the apex, obscure blue, appearing slightly

dull green in some aspects, with slight purple tints at the margins; their convexity is

not very great. The terminal segment of the abdomen of the male is gently sinuate

on each side, rounded at the apex, and furnished with about eighteen short, not very

acute teeth, and with some smaller and less definite ones at each end of the series

(fig. 14). A female specimen from Volcan de Chiriqui has the purple on the elytra

more extended.

A single female example from David in Chiriqui (Champion) differs from the one

described above in having the head and lateral margins of the thorax bright green,

and the green on the thorax limited by a coppery line drawn from the posterior angle

to the middle of the anterior margin. This may be a distinct species.

148 SERRICORNIA.

25. Pachyschelus nigricollis. (Tab. VII. figg. 21, 21 a.)

Niger, nitidus, paullo convexus; elytris violaceis, sat fortiter punctatis, ad apicem acuminatis, lateribus ad

medium angulatis.

Long. 13 lin.

Hab. Mexico, Cordova (Sallé).

This is a rather broad, not very convex species, with a form approaching diamond-

shape. The head is black and shining. The thorax is black and shining; it has small

but distinct punctures scattered over the disc ; the sides are somewhat narrowly

bordered with dull green, the green part being closely punctured. ‘The elytra at the

base are as broad as the base of the thorax, a little widened to the middle, and then

obliquely and almost rectilinearly narrowed to the apex; the lateral impression is

very well marked. The terminal segment of the abdomen in the male is very much

narrowed, produced and deflexed, almost truncate at the apex, with eight nearly

equal, short, not very acute teeth; owing to the apex being deflexed, these teeth are

only visible in certain positions (fig. 21 a).

26. Pachyschelus centralis.

Rotundato-ovalis, leviter convexus, subtus niger, nitidus, supra brunneo-eneus ; capite thoraceque confertim

subtiliter rugoso-punctatis ; scutello triangulari, levi; elytris confertim rugosis.

Long. 14 lin.

Hab. Guatemaua, El Tumbador 2500 feet (Champion).

This is one of the most rotund species of the genus. The upper surface is dull

owing to the dense sculpture. The head and thorax are densely punctured. The

elytra are somewhat differently sculptured, being more rugose and somewhat closely

strigose near the base; the suture below the scutellum is slightly shining; the lateral

impression is only lightly indicated.

Two female examples.

27. Pachyschelus lunifer, (Tab. VII. figg. 22, 22a.)

Fere rotundatus, leviter convexus, niger, creberrime punctatus, pube brevi grisea dense tectus, scutello lunaque

communi in disco elytrorum nigris nitidis ; thoracis lateribus aureo-viridi marginatis; genubus et tibiis

anticis supra aureis.

31:

Long. 1? lin.

Hab. Guatema.a, Volcan de Atitlan 3000 feet (Champion).

A very rotundate species, only a trifle longer than broad, rounded in front, very

slightly narrowed posteriorly; densely clothed with short pale grey pubescence, except

the scutellum (which is almost bare) and a large lunate spot (common to both the

elytra), where the pubescence is black. The thorax is very short and broad, and is

deeply semicircularly emarginate in front, so that the head is much more imbedded in

the thorax than is usually the case. The terminal segment of the abdomen of the

PACH YSCHELUS. 149

male is widely emarginate in the middle of the apex, with four teeth (placed obliquely)

on each side, the first, second, and third of these subequal, strong and acute, the out-

side one smaller (fig. 22 a).

28. Pachyschelus cinctus, (Tab. VIII. fig. 15.)

Ovatus, convexus, niger, obscure snescens, pube brevi griseo-alba tectus; elytris macula magna communi

rotundata calva.

Long. 1 lin.

Hab. Guatemaa, Rio Maria Linda 500 feet (Champion); Panama, Volcan de

Chiriqui 2000 to 4000 feet (Champion).

A short ovate species, arcuately acuminate posteriorly. The head and thorax are

densely punctured, clothed with greyish-white pubescence, the latter apparently with

two small bare spots on the disc. The scutellum is bare and shining. ‘The elytra are

shining, with some indistinct lines of punctures; clothed with greyish-white pube-

scence, except a large round spot, common to both elytra. The terminal segment of

the abdomen of the male is very slightly sinuate on each side, almost truncate at the

apex (with the angles rounded), with twelve or fourteen short, small, not very sharp

teeth (fig. 15). In some lights a slight coppery-purple tint may be seen at the sides of

the elytra.

29. Pachyschelus irroratus. (Tab. VII. figg. 23, 23 a.)

Elongatus, ovatus, convexus ; capite thoraceque eeneis, punctatis, parce griseo-pubescentibus ; elytris brunneo-

cupreis, sub humeris thorace perpaullo latioribus, postice gradatim angustatis, evidenter punctatis, pube

brevissima grisea irroratis.

Long. 13 lin.

Hab. Mexico, Mazatlan in Sinaloa (Hége).

This is a very elongate-ovate, convex species. The head is not much imbedded in

the thorax. The thorax is much less short than usual, and also much less narrowed

anteriorly, comparatively more gently emarginate in front; distinctly punctured, the

punctures not very far apart. The scutellum issmooth. The elytra immediately below

the shoulders are only a trifle wider than the thorax, and thence to the apex are in a

gentle curve narrowed to the apex; the punctuation is somewhat strong and irregular ;

the short pubescence does not appear to form any distinct pattern. The terminal

segment of the abdomen of the male has eight moderately large teeth arranged in a

curve, broad at their base, gradually acuminate, the outer tooth smaller than the

central ones (fig. 23 a).

30. Pdchyschelus laticeps. (Tab. VIII. fig. 16.)

Elliptico-ovalis, leviter convexus, nitidus ; capite lato, thorace scutelloque brunneo-cupreis ; elytris purpureis,

crebre punctatis, fascia post medium apiceque griseo-pubescentibus, lateribus medio obtuse angulatis.

Long. 13 lin.

150 SERRICORNIA.

Hab. Panama, Tolé (Champion).

This species is remarkable for its form, being almost: equally narrowed in front

and behind, with the head very broad and the elytra acuminate, the greatest width

being at the middle of the latter. The head and thorax are finely reticulate-striolate.

The thorax is not much narrowed in front (as compared with allied species), with the

sides lightly transversely impressed in front and at the base. The elytra are purple,

with some very short pale pubescence, which forms a not very distinct fascia behind

the middle, and appears almost to cover the apex; a few pale hairs are also visible

near the base. The terminal segment of the abdomen of the male has the apex very

broad, almost truncate, with the angles rounded, furnished with about twenty short

blunt teeth, one or two at the extremities of the series being small and not so well

defined as the others (fig. 16).

31. Pachyschelus signatus. (Tab. VIII. fig. 17.)

Trapeziformis, parum convexus, nitidus ; capite thoraceque eruginosis (vel brunneo-eneis); elytris brunneo-

cupreis (vel cupreis), obsolete seneo-variegatis, postice angustatis, ad apicem utrinque oblique truncatis,

fasciis duabus (altera mediana, altera ante apicem) angulatis, griseo-albis ornatis.

‘Long. 12 lin.

Hab. GuateMALA, Cahabon, Chiacam, and San Juan in Vera Paz (Champion).

This species has a short thorax and relatively long elytra. The greatest width is at

the juncture of the elytra and thorax; the width slightly diminishes to the middle of

the elytra, and then a little more obliquely to the apical truncature. The thorax has

rather large, very shallow punctures scattered over the surface and is sparingly pube-

scent. The elytra are punctured and are slightly rugose at the shoulders, with a

smoother patch between the pubescent bands, this smoother part being of a darker |

colour than the rugose part; there is a little pale pubescence in the basal region, and a

not very distinct narrow fascia at the middle—commencing from the margin it curves

upwards to near the suture and then turns obliquely downwards to the suture; the

posterior fascia commencing from the margin is very slightly directed downwards,

then very slightly upwards, and then descends again to the suture, this fascia being

more dense near the middle and at first sight appearing like an oblique whitish spot ;

there are a few pale hairs near the apex. The terminal segment of the abdomen of

the male is rather widely produced at the apex, widely but not deeply emarginate, with

a slight notch in the middle, nearly parallel at the sides, with two acute teeth on the

outer side at a lower level (fig. 17). |

The foregoing description is taken from a specimen from Cahabon. The example

from Chiacam is of a more brownish-brass colour. Four female examples from San

Juan are of a dark bluish-green.

PACHYSCHELUS. 151

82. Pachyschelus trapezoidalis. (Tab. VII. figg. 24, 24 a.)

Trapeziformis, parum convexus, nitidus; capite thoraceque eneis vel brunneo-eneis, pubescentibus ; elytris

cupreo-seneis vel brunneo-eneis seneo-variegatis, pube griseo-alba lituratis.

Long. 12 lin.

Hab. Mxxico, Chilpancingo in Guerrero 4600 feet (H. H. Smith).

This species closely resembles P. signatus in form and general markings. The elytra

are, however, a little longer, a trifle more gradually narrowed to the apical truncature,

and the sutural angle is distinctly produced. The terminal segment of the abdomen

of the male has a wide triangular emargination at the apex, with four triangular teeth

on the outer side placed very obliquely ; one example (fig. 24a) has the apex much

worn, leaving only the central part of the emargination.

A single specimen from Yolos, Mexico, appears to belong to this species, but has

the pubescence of a more distinctly sandy-yellow.

33. Pachyschelus undulatus. (Tab. VIII. fig. 18.)

Trapeziformis, convexus, nitidus, nigro-cyaneus ; thorace lateribus parce pubescente; elytris tenuiter punctatis,

fasciis duabus albis ornatis.

3 1

Long. 13 lin.

Hab. Panama, Bugaba, San Lorenzo (Champion).

This species approaches P. trapezoidalis in general form, but is much more convex,

especially in the thorax. The thorax is shining, with fine punctures here and there.

The elytra at the base are as broad as the thorax, almost parallel for not quite half

their length, and then obliquely narrowed to the apical truncature ; the apical margins

are rather unusually denticulate ; there is a white spot close to the scutellum; the

first band commencing at the lateral angulation descends slightly to about the middle

of the elytron, then ascends obliquely, and, turning over, descends to the suture; the

anteapical fascia is very distinct—at first it is transverse, then ascends obliquely a very

short distance, and then descends to the suture. The terminal segment of the abdomen

of the male is deeply excised at the apex, with two strong triangular teeth to the

projecting part on each side of the excision, and with a smaller acute tooth on the

outer side at a much lower level (fig. 18).

34. Pachyschelus bifasciatus. (Tab. VIII. fig. 19.)

Ovatus, convexus, sat nitidus, post medium oblique attenuatus, ad apicem utrinque oblique truncatus ; capite

thoraceque virescenti-cyaneis, tenuiter punctatis, parce pubescentibus; elytris nigro-cyaneis violaceo-

tinctis, minus nitidis, punctulatis, fasciis duabus albidis ornatis,

Long. 13 lin.

Hab. Guatemata, Teleman in Vera Paz (Champion).

The elytra are obscure dark blue, with violet or purple tints at the base and sides ;

at the base they are as wide as the base of the thorax, very slightly widened (almost

parallel) to a little before the middle, then obliquely narrowed, slightly sinuate

posteriorly, and then more obliquely narrowed to the apex; there are a few pale hairs

152 SERRICORNIA.

near the scutellum, an undulating fascia a trifle behind the middle, descending at the

suture, and a second fascia just before the apex. The terminal segment of the abdo-

men of the male is excised at the apex, the excision being straight in the middle, with

its sides oblique; on the outer side are four not very large triangular teeth placed very

obliquely (fig. 19).

35. Pachyschelus elegans. (Tab. VIII. fig. 20.)

Ovatus, convexus, nitidus, supra obscure cupreo-purpureus ; thorace creberrime reticulato-striolato, lateribus

parce pubescentibus ; elytris postice arcuatim angustatis, basi punctatis, ante apicem fascia communi

curvata alba ornatis.

a7:

Long. 12 lin.

Hab. Panama, Taboga I. (Champion).

This species somewhat resembles P. bifasciatus, but is a little brcader, without

angulations at the sides, a trifle broader just before the middle than at the base, and

then arcuately narrowed to the apex; the apical half is very delicately punctured,

appearing almost smooth ; there is a little whitish pubescence near the scutellum, a

small spot near the suture, about the middle, and a distinct curved fascia commencing

at the margin behind the middle and descending to one-third from the apex at the

suture. The terminal segment of the abdomen of the male has at the apex four teeth

on each side (separated by a wide triangular space)—first a very small one, then a large

terminal one, a rather smaller one on the outer side at a lower level, and the fourth

still smaller and lower down (fig. 20).

86. Pachyschelus azureus. (Tab. VIII. fig. 21.)

Supra azureus, nitidus; capite thoraceque seneo-tinctis ; elytris postice angustatis, punctatis, ante apicem guttis

duabus albis ornatis.

Long. 13 lin.

Hab. Guatemaa, Cahabon, Teleman, Chacoj, and Chiacam in Vera Paz, El Tumbador

2500 feet (Champion).

This and the following species, which closely resemble each other, vary somewhat in

tint, the elytra being usually bright blue (sometimes slightly tinted with golden-green),

and the head and thorax more generally of a less distinct blue. The thorax is very

finely and not very closely punctured. The elytra at the base are as wide as the base

of the thorax, scarcely widened at the middle, narrowed posteriorly for some distance,

and then very obliquely narrowed at the apex; moderately strongly punctured at the

base, smoother at the apex ; each elytron has an obliquely transverse white spot near the -

apex. The terminal segment of the abdomen of the male has three triangular teeth.

on each side, separated by a wide space or excision, the base of which is nearly

rectilinear; the second tooth is a little longer than the first, and the third or outer one

is smaller and at a lower level (fig. 21). :

A single example from R. Hondo, British Honduras (Blancaneaux), appears to

PACHYSCHELUS. 153

be referable to this species. Five examples from Volcan de Chiriqui differ from the

specimens described above in being larger, measuring 12 lines in length.

37. Pachyschelus biguttatus. (Tab. VIII. fig. 22.)

Omnino azureus, nitidus; elytris ante apicem fascia alba ad suturam interrupta ornatis.

Long. 13-1} lin.

Hab. Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui 2000 to 4000 feet, David

(Champion). .

This species very closely resembles the preceding, but is entirely bright blue above,

and averages a little smaller. The terminal segment of the abdomen of the male has

four short triangular teeth, arranged in a curve, on each side of a moderately wide

triangular notch (fig. 22).

88. Pachyschelus sticticus. (Tab. VIII. fig. 23.)

Omnino azureus, nitidus; elytris ante apicem guttis duabus albis ornatis.

Long. 13 lin.

Hab. GuatEMALA, Tamahu, Senahu, and San Juan in Vera Paz (Champion).

This species closely resembles P. diguttatus; the white spots on the elytra are,

however, a trifle wider, and more widely separated at the suture. The terminal

segment of the abdomen of the male is broad at the apex, only slightly curved, with

eight short, subequal teeth, the middle pair a little more separated than the others

(fig. 23).

One example from San Juan is much shaded with golden-green. Three examples

from Teapa in Tabasco (H. H. Smith) appear to be referable to the same species.

39. Pachyschelus pubicollis. (Tab. VIII. fig. 24.)

Ovatus, convexus, postice bene attenuatus; capite thoraceque brunneo-sneis, parce griseo-pubescentibus ; elytris

cyaneis, marginibus violaceo-tinctis, regione suturali subtiliter punctata, ante apicem fascia angusta alba

ad suturam interrupta ornatis.

Long. 13 lin.

Hab. Mexico, Teapa in Tabasco (H. H. Smith); GuaTEMauA, San Juan in Vera Paz

(Champion); Panama, Taboga I., San Miguel in the Pearl Islands (Champion).

This species resembles P. sticticus, but is narrower, and has the elytra much more

acuminate. The thorax is marked with moderately large, very shallow punctures, often

open on one side; these are few on the disc, but increase in number towards the sides,

where they are subconfluent in an oblique direction. The elytra are dark blue, with

the margins and apex violet; near the apex of each elytron there is a slightly curved

white line, which does not reach the suture. The terminal segment of the abdomen of

the male is somewhat narrowed at the apex, with four subequal short teeth on each

side, placed obliquely, separated by a wide, but shallow, triangular space (fig. 24).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1889. xX

154 SERRICORNIA.

LEIOPLEURA.

Leiopleura, Deyrolle, Ann. Soc. Ent. Belg. viii. p. 219 (1864).

The six described species of this genus are from Cuba and South America; twenty-

three are here recorded from Central America.

1. Leiopleura intermedia. (Tab. IX. fig. 1.) |

Oblonga, depressa, subtus nigra, supra cuprea; capite antice viridi, subtiliter punctulato ; thorace medio paullo

infuscato, nitido, parce pun¢tato, lateribus confertim subtiliter rugosis et parce punctatis, marginibus

viridibus; elytris confertim subtiliter rugosis, parallelis, ad apicem arcuatim attenuatis, regione suturali

paullo infuscata, magis nitida, parcius punctata.

Long. 1? lin.

Hab. GUATEMALA, Cerro Zunil 4500 feet (Champion).

The antenne when at rest are lodged in an impression on the under flank of the

prothorax. The front legs are also lodged in a well-marked impression; the anterior

and intermediate tibize are subcylindrical ; the posterior tibie are a little widened at the

middle. The head hasa slight longitudinal impression in front; it is densely and finely

rugose and punctured. The thorax is widest just before the base, convex, without any

lateral impression. The elytra are a trifle narrower than the thorax, subparallel for

two-thirds their length, and then narrowed to the apex; there is a light impression

at the side below the shoulder and another near the suture before the apex.

2. Leiopleura contigua. (Tab. IX. fig. 2.)

Oblongo-ovata, sat lata, depressa, nigra, nitida; capite virescente, confertim subtiliter rugoso, parce punctato,

antice leviter concavo; thorace subtilissime rugoso, punctato, disco fusco-nigro, lateribus virescentibus,

leviter impressis ; elytris nigro-purpurascentibus, crebre subtiliter punctatis.

Var. Capite thoracisque lateribus concoloribus.

Long. 17 lin.

Hab. Panama, Volcan de Chiriqui 3500 feet (Champion).

The thoracic impression for the antenne is very short and shallow. The anterior

legs are in repose lodged in a cavity in the prothorax; the tibie of the front legs are

subcylindrical, a little thickened near the base; the intermediate tibie are much

curved; the posterior tibie are very slightly flattened, but not dilated. The antenne

and the anterior surface of the femora and part of the tibie are green. The thorax

has the disc marked with stelliform punctures, which are not very close together. The

elytra have the margin below the shoulder flattened ; there is a light impression on the

margin behind the middle, and another nearer the suture not far from the apex.

A second specimen differs from the one above described in the green colour being

absent.

LEIOPLEURA. 155

3. Leiopleura divisa.

Oblongo-ovata, sat lata, depressa, nigra, nitida, capite antice obscure eneo-virescente; thoracis disco punctato,

lateribus late subtilissime rugosis, virescentibus; elytris nigro-purpurascentibus, subtiliter punctatis,

vermiculoso-striolatis, fasciis duabus sat latis ad suturam interruptis viridibus rugosis.

Long. 13 lin.

Hab. Panama, Volcan de Chiriqui 2500 feet (Champion).

This species is very close to LZ. contigua; but it is smaller, and has two bright

green rugose bands on each elytron—one a little before the middle, obliquely directed

upwards towards the scutellum, not reaching the suture; the second near the apex,

similar but shorter. The basal joint of the antenne and part of the anterior surface

of the femora are brassy. The intermediate tibie are subcylindrical and comparatively

straight.

4, Leiopleura crassa. (Tab. IX. fig. 3.)

Oblonga, convexa, nitida; capite virescente; thorace ceruleo, nitidissimo, disco bene convexo, parce punctu-

lato, lateribus postice late deplanatis, basi transversim sat profunde impressa; elytris violaceo-cyaneis,

punctatis.

Long. 17-12 lin.

Hab. Panama, Bugaba (Champion).

Var. 1. Capite thoraceque nigris.

Hab. Panama, Bugaba 800 to 1500 feet (Champion).

Var, 2. Tota nigra.

Hab. Guatemata, Chacoj in Vera Paz, Las Mercedes 3000 feet, Cerro Zunil 4000

to 5000 feet (Champion) ; Panama, Volcan de Chiriqui 2500 to 6000 feet, Taboga I.

(Champion).

The head appears smooth, with some moderately large punctures scattered over the

surface; but under the microscope some additional very fine punctures may be seen ;

there is a longitudinal impression in front. The thorax has a bluer tint than the

head: it is not much narrowed in front, broadest at the posterior angles, which are

very acute and directed backwards; the disc has a few punctures ; the sides are flat-

tened, narrowly in front, broadly at the posterior angles; the lateral margins have a

narrow vermiculate-striolate border. ‘The elytra are convex, declivous posteriorly; at

the base as broad as the thorax, gradually but not much widened to about three-fifths

their length, and obliquely narrowed to the apex; dark violet-blue ; distinctly punc-

tured, the punctures of unequal size, irregular, not very close together.

One example from Bugaba has the disc of the thorax nearly black, with the sides

green.

A single example from the Volcan de Chiriqui, probably referable to this species,

has the head and thorax black and the elytra obscure green.

X 2

156 SERRICORNIA.

One example from Cerro Zunil and another from Volcan de Chiriqui agree with

var. 2, except that they appear broader and have a slight coppery-brown tint on the

thorax.

5. Leiopleura viridifrons.

Oblonga, convexa, nitida; capite antice viridi; thoracis disco convexo, punctulato, lateribus deplanatis, viri-

dibus, margine antico cupreo, basi transversim sat profunde impressa ; elytris subtiliter punctulatis,

Long. 13 lin.

Hab. Panama, Volcan de Chiriqui 5000 feet (Champion).

This species is very close to Z. crassa; but the thorax is a little broader, the elytra

are scarcely widened behind the middle, so that they are more gradually narrowed to

the apex, and the sculpture is finer. The head in front is golden-green, less convex

than in Z. crassa, longitudinally impressed in the middle, finely rugose, and with some

distinct punctures. The antenne are brassy. The thorax has the margins more

broadly rugose, the rugose surface occupying almost one-third of the width. The elytra

have the surface less smooth, with fine striole between the punctures.

6. Leiopleura pulchra. (Tab. IX. fig. 4.)

Oblonga, convexa, nigra, nitida; capite thoraceque aureo-viridibus, hoc macula antice nigra; elytris violaceo-

nigris, fascia lata mediana apiceque aureo-viridibus.

Long. 12 lin.

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

The head is almost smooth, but under the microscope is seen to be finely vermiculate-

striolate, with some distinct punctures scattered over the surface; there is a longitu-~

dinal impressed median line. The antenne are eneous. The thorax is sculptured

somewhat in the same way as the head, but the punctures are moderately strong, not

very close together; there is a little rugosity at the anterior angles; the disc is not so

convex as in Z. crassa, and the sides are not so impressed; there is a transverse impres-

sion on each side of the base. The elytra are convex, narrowly margined, the surface

somewhat uneven, marked with rather large punctures, which are more numerous in

the basal half; the lateral subhumeral impression is well marked, but without distinct

limitations.

7. Leiopleura puncticeps.

Oblonga, convexa, nitida ; capite sat crebre punctato, aureo-viridi; thorace punctato, medio fusco-nigro, late-

ribus late aureo-viridibus; elytris violaceo-nigris, convexis, crebre punctatis, vitta juxta suturam postice

fascia mediana juncta, maculaque transversa ante apicem viridibus.

Long. 14 lin.

Hab. Mexico, Acapulco in Guerrero (Hége), Teapa in Tabasco (H. H. Smith) ;

GuATEMALA, Panima, San Juan, and Chacoj in Vera Paz (Champion).

LEIOPLEURA. 157

This species is very near to LZ. pulchra, but is rather narrower, the thorax is a little

more narrowed in front, and the dark colour covers the whole disc. The elytra are

distinctly but not much widened posteriorly, the broadest part being at about three-

fifths their length ; each elytron has a bright green stripe, commencing close to the

scutellum and continued somewhat obliquely to the middle of the elytron, where it

meets the slightly oblique transverse band; at a short distance from the apex there is

a transverse spot, which does not reach the suture. The head is rather less convex

than in L. pulchra, and is distinctly and much more closely punctured. The thorax

has the sides scarcely impressed; the transverse basal impression is less marked, but

limited externally by a fine, short, oblique ridge, which is generally of a coppery

colour.

A specimen from Bugaba, apparently referable to the same species, has the basal

stripe of the elytra almost separated from the median fascia, and the subapical spot

more suffused.

Another specimen from Bugaba has the green stripe and fascia of the elytra replaced

by a bright coppery-red band extending from the scutellum to the middle of the side

of the elytron. ;

8. Leiopleura venusta.

Oblonga, convexa, nitida; capite viridi, crebre punctato; thorace viridi, medio infuscato, lateribus subtiliter

rugosis ; elytris nigro-violaceis, macula magna scutellari, altera laterali ad medium vix connexis viridibus,

fascia lata ante apicem cyaneo-viridi.

Long. 1? lin.

Hab. Panama, Volcan de Chiriqui 3500 feet (Champion).

Closely allied to Z. pulchra, but much larger and more convex. The head is more

closely punctured. The thorax has the sides only slightly flattened near the posterior

angles; the punctures are distinct, but not close together; the surface at the sides is

densely and finely rugose, the rugosity extending at the base for nearly one quarter the

width of the thorax. ‘The elytra are relatively a little shorter and more obtuse at the

apex, more convex, and less distinctly margined ; dark violet; each elytron has a

large green spot at the scutellum and a transverse lateral one at the middle; these

spots are rugose, and are connected by a narrow line; the subapical band is broad,

and gradually increases in width till it reaches the suture.

The following may be varieties of this species; they are not quite so broad as the

type, but agree in all essential characters :-—

Var. 1. Each elytron with an oblique green stripe extending from the scutellum to near the middle of the

elytron, where it meets a fascia of the same width which extends to the margin. At a short distance

from the apex there is a transverse narrow green fascia, which does not reach the suture.

Had. Guatemaa, San Gerénimo (Champion).

158 SERRICORNIA.

Var. 2. Similar to var. 1, but with the basal stripe abbreviated and the median fascia only extending to the

middle of the elytron ; these marks are bluish.

Hab. Guatamata, Cerro Zunil 4000 to 5000 feet (Champion).

9. Leiopleura interrupta.

Ovalis, convexa, nitida; capite viridi-ceruleo, punctulato; thorace antice angustato, convexo, nitidissimo,

fusco-seneo, lateribus (preecipue angulis posticis) viridi-metallicis; elytris nigro-violaceis, ad medium

fascia lata (ad suturam late interrupta) viridi, punctata, et ante apicem macula cyanea ornatis.

Long. 17 lin.

Hab. Panama, Bugaba (Champion).

This species differs from L. pulchra in being more regularly oval, with the thorax

more narrowed in front and the elytra more arcuate at the sides, their greatest width

being at the middle. The head is very delicately punctured, the punctures moderately

near together ; there is an elongate fovea infront. The thorax is sparingly punctured ;

the sides are narrowly margined, scarcely flattened, with a shallow ill-defined transverse

impression at the base near the hind angles. The elytra are convex, with the lateral

impression well marked, with some close rugose punctuation at the suture near the

scutellum, finely punctured elsewhere; the median fascia touches the margin, but

does not reach the suture, with its posterior margin straight, the anterior margin

oblique, so that the fascia gradually increases in width; the blue subapical spot is

transverse, and does not reach the suture.

10. Leiopleura viridicollis.

Brachys viridicollis, Gory, Mon. iv. p. 343, t. 58. £. 339°.

Hab. Panama, Bugaba 800 to 1500 feet (Champion).—Gutana, Cayenne 1.

I am unable to separate the Central-American specimens from Gory’s species.

11. Leiopleura basalis.

Oblongo-ovalis, convexa, nitida ; capite viridi-aureo, punctato; thorace antice angustato, leviter convexo, disco

antice fusco-nigro, basi cupreo-aurea, lateribus viridi-aureis, confertim subtiliter rugosis, haud deplanatis ;

elytris nigro-violaceis, postice arcuatim attenuatis, punctatis, medio fascia lata (ad suturam interrupta) —

rufo-cuprea, apice viridi.

Long. 14 lin.

Hab. Guatemata, Tamahu in Vera Paz (Champion).

This species is a little narrower than L. pulchra, with the thorax more narrowed in

front and evenly convex. The elytra are scarcely as wide behind the middle as at the

base, with the lateral impression not very deep. The head is distinctly punctured, as

in L. puncticeps. The thorax has the front part of the disc brownish-black ; the base

is coppery, and the sides greenish-golden; the dark parts are shining and sparingly

punctured, but the spot at the base and the golden margins are finely rugose and

LEIOPLEURA. 159

punctured ; there is scarcely any trace of the basal impression near the hind angles;

but the very fine coppery ridge noticed in L. puncticeps may be seen.

12. Leiopleura nigra. |

Oblongo-ovalis, convexa, nigra, nitida; thorace convexo, tenuiter punctulato, lateribus haud deplanatis; elytris

basi sat fortiter punctatis, postice arcuatim attenuatis.

Long. 12 lin.

Hab. Panama, Bugaba (Champion).

This species is narrower than JZ. pulchra, with the thorax more narrowed in front,

and with the elytra more gradually acuminate to the apex, more arcuate at the sides,

and not angulated behind the middle. The head is moderately closely and distinctly

punctured, with a shallow elongate puncture in front. The thorax is evenly convex

and without lateral impressions; the base very lightly transversely impressed ; under

the microscope the surface is seen to be closely and finely vermiculate-striolate, gradu-

ally becoming slightly rugose at the sides; with small punctures at the base and sides.

The elytra have the basal half moderately strongly punctured, the punctures not very

close together ; the lateral impression is well marked, and there is a shallow round

impression behind the middle near the side.

13. Leiopleura trivialis. (Tab. IX. fig. 6.)

Elongata, angusta, convexa, nigra, nitida; capite antice eeneo, convexo, medio longitudinaliter impresso, sat

crebre punctato; thorace disco convexo, subtiliter parce punctulato, lateribus plerumque postice depla-

natis, basi leviter transversim impressa; elytris convexis, postice acuminatis, dimidio basali sat fortiter

punctato.

Long. 13 lin.

Hab. Panama, Taboga I. (Champion).

This species has the thorax very convex, with the sides impressed, very narrowly so

anteriorly, but broadly at the posterior angles, the impressed part less shining than the

disc and finely rugose. The elytra have the basal half strongly punctured, the punc-

tures moderately close together, but very irregular; the apical halfis very delicately

punctured ; the lateral impression is narrow and rugose ; the sutural area near the apex

is slightly flattened, so that towards the side there is a faint indication of a ridge.

14. Leiopleura lateralis.

Elongata, sat angusta, convexa, nigra, nitida; capite antice viridi, minus convexo, subtiliter rugoso, medio

longitudinaliter impresso ; thorace convexo, lateribus postice deplanatis, viridi marginatis, basi transversim

leviter impressa ; elytris punctatis.

Long. 13 lin.

Hab. Panama, Volcan de Chiriqui 3500 feet (Champion).

This species is less narrow than ZL. trivialis and also relatively shorter, and is some

160 SERRICORNIA.

what. intermediate in form between L. trivialis and L. crassa. The head is flatter in

front than in ZL. trivialis, and is densely rugose. ‘The thorax is a little shorter and

broader, and rather more narrowed in front; the disc is convex, and the sides are

impressed, broadly so posteriorly, and margined with green; the green part is rugose,

and there is a little green spot on each side of the base where the basal margin is

reflexed. The elytra are less acuminate than in L. trivialis, being a trifle wider at

the middle than at the base ; the punctuation is not quite so strong, and the punctures

are more separated.

15. Leiopleura eneifrons.

Elongatula, sat angusta, convexa, nigra, nitida; capite antice convexo, seneo, subtiliter punctulato, medio

longitudinaliter impresso ; thorace convexo, lateribus postice deplanatis, basi transversim leviter impressa ;

elytris punctatis.

Long. 1} lin.

Hab. Panama, Volcan de Chiriqui 2500 feet (Champion).

This species closely resembles Z. lateralis, but is smaller, differently coloured, and

with quite differently sculptured head. The head is convex, longitudinally impressed

in the middle, finely and delicately reticulate-striolate, with a few small punctures.

The thorax is finely reticulate-striolate, moderately strongly punctured, the punctures

not very close together; the sides are impressed, broadly so posteriorly ; the base is

also impressed, the impression becoming deep near the posterior angles. ‘The elytra

have the surface somewhat uneven, moderately strongly punctured at the base, more

delicately punctured posteriorly, the punctures moderately close together.

The thorax is not quite black, but appears very slightly bronzy in some lights, and

the anterior angles are tinted with green.

The position of the following species is somewhat doubful ; they appear, however, to

be best associated with Leiopleura. They have the head unusually small; the tibie

are slender and (except in L. placida) curved. The antenne when at rest are lodged

in grooves of the prothorax. There is a slight impression for the reception of the

intermediate legs; the posterior legs are free. In only two cases are the males known,

and both these have a multidentate apical segment to the abdomen.

16. Leiopleura convexa. (Tab. IX. fig. 6.)

Elliptico-ovalis, convexa, brunneo-znea, nitida; thorace convexo, parce punctato, angulis posticis vix impressis ;

elytris convexis, postice arcuatim angustatis, sat fortiter punctatis.

Long. 13 lin.

Hab. Panama, Volcan de Chiriqui 2500 feet (Champion).

LEIOPLEURA. 161

Very convex, almost as much narrowed anteriorly as posteriorly. The head is convex,

longitudinally impressed in the middle, finely reticulate-striolate, with some punctures

here and there. Thorax evenly convex, with no basal impression, the margins scarcely

impressed at the posterior angles; finely reticulate-striolate, with a few punctures

scattered over the surface. The elytra are moderately strongly punctured, the punc-

tures not very far apart, rather less distinct posteriorly.

17. Leiopleura parvula. (Tab. IX. fig. 7.)

Convexa, nigra, nitida ; capite parvo, medio leviter sulcato ; thorace antice oblique angustato, parce punctulato ;

elytris purpurascentibus, striato-punctatis, postice acuminatis.

Long. 1} lin.

Hab. Panama, David (Champion).

The head is closely reticulate-striolate, longitudinally impressed in front, narrow

between the eyes, with a few shallow punctures; the eyes are not prominent. The

thorax is obscurely tinted with purple ; closely and finely reticulate-striolate, but on the

disc the striole are in parts almost effaced; there are a few shallow punctures rather

widely separated from each other. The elytra are very convex, with a light impression

at about one-third from the apex, leaving the suture beyond this more raised; they

are punctured in lines, the punctures at the base being rather strong but diminishing

posteriorly ; the interstices have also some small punctures.

A single example from Panzos in Vera Paz appears to be referable to the same species.

18. Leiopleura difficilis.

Convéxa, nitida, nigra; capite antice aureo-zneo ; thorace obscure brunneo-sneo, angulis anticis aureo-tinctis,

parce punctato; elytris crebre punctatis, ante basin transversim plicatis.

Long. 1 lin.

Hab. Panama, Caldera in Chiriqui 1200 feet (Champion).

This species closely resembles LZ. parvula, but the head is not quite so narrow and isa

little more impressed on the forehead ; and the elytra are somewhat longer, rather less

convex, and slightly narrowed before the apex. ‘The head in front is brassy, with the

reticulate striolation deeper, so that the surface is more rugose. The thorax is similar,

but has the region of the anterior angles brassy ; the reticulation is more distinct, and

verges into rugosity at the sides; the punctures are small but distinct, and are plainly

visible towards the sides, which they are not in L. parvula. The elytra bave the

punctuation rather strong, close, and confused, and near the base the surface is slightly

wrinkled.

A specimen from Relize appears to be referable to the same species, but it has no

transverse wrinkles on the elytra.

BIOL. CENTR.-AMER., Coleopt., Vol. IIT. Pt. 1, November 1889. Y

162 SERRICORNIA.

19. Leiopleura inconspicua.

Convexa, nitida, subtus nigra; capite thoraceque cupreis ; elytris rufo-cupreis (vel obscure eruginosis), crebre

punctatis.

Long. 12 lin.

Hab. British Honpuras, Belize (Blancaneauz).

This is a slightly broader species than Z. parvula, with the thorax more obliquely

narrowed in front, the elytra shorter and a little less acuminate at the apex. The head

is rather more deeply sulcate, with the reticulate striolation very delicate and scarcely

distinguishable in parts even under the microscope ; there are four or five large shallow

punctures in a line on each side. The thorax is broader, almost smooth, very slightly

sinuate at the sides about the middle, sparingly punctured ; the punctures small but

distinct, more distinct than in LZ. parvula. The elytra are moderately strongly punc-

tured in lines, with the intervals only slightly less strongly punctured.

A second specimen has the elytra obscure dark green.

20. Leiopleura polita. (Tab. IX. fig. 8.)

Convexa, nitidissima, subtus nigra; capite thoraceque lete cupreis, punctatis ; scutello brunneo-cupreo ; elytris

viridi-cyaneis, striato-punctatis.

Long. 1? lin.

Hab. Panama, Bugaba (Champion).

The head is finely rugose, with rather large shallow punctures placed not very close

together. The thorax is finely reticulate-striolate, slightly rugose at the sides; punc-

tured, the punctures small but very distinct, not very close together. The scutellum

is brown. The elytra are dark bluish-green, finely striate-punctate, with finer punc-

tures scattered over the surface. The apex of the abdomen in the male is furnished

with about twelve teeth, those in the middle are long and gradually acuminate, one

or two at each end being smaller; the two sides are not quite alike in the specimen

described.

21. Leiopleura longula.

Elongata, convexa, polita, supra cyanea, purpurascens; thorace parce punctato, linea mediana virescente ;

scutello virescente ; elytris obscure punctulatis.

Long. 2 lin.

Hab. Mexico, Cordova (Sailé).

This is a much more elongate species than L. polita, with the thorax not quite so

obliquely narrowed in front. The elytra are much longer, a little narrowed below the

shoulders, a little broader at the posterior two-thirds than at the base, and then gradu-

ally narrowed to the apex. ‘The head is rather deeply longitudinally impressed in the

middle, finely and very closely reticulate-striolate, with a few small punctures. The

LEIOPLEURA. 163

thorax is almost smooth; under the microscope the sides are seen to be very delicately

reticulate-striolate ; punctured, the punctures very small at the front part of the disc,

larger posteriorly, not very close together, but on each side of the base a few of them

are transversely confluent. The elytra are punctured, the punctures small and very

distinct and some of them ranging themselves in lines.

2. Leiopleura placida.

Ovalis,. convexa, nitida; capite virescente; thorace nigro-cyaneo, subtiliter parce punctato ; elytris cyaneis, sat

fortiter punctatis.

Long. 13 lin.

Hab. Panama, Volcan de Chiriqui 2500 feet (Champion).

This species is shorter and more ovate than ZL. polita. The front of the head and

sides of the thorax are slightly tinted with bluish-green; the disc of the thorax is

blackish-blue, and the elytra are steel-blue. The head has scarcely any longitudinal

impression ; it is reticulate-striolate, but the striolation is somewhat interrupted and

has a tendency to run in a transverse direction; there are some distinct punctures

placed not very close together. The thorax is evenly convex, finely margined at the

sides, finely reticulate-striolate, with a slight tendency to rugosity; punctured, the

punctures distinct and not very close together. The elytra are convex, scarcely broader

behind the middle than at the shoulders, arcuately narrowed to the apex; punctured,

the punctures moderately strong at the base, delicate at the apex, irregular and of

unequal size. The intermediate tibie are nearly straight, a little wider near the base

than at the apex.

23. Leiopleura jubilans.

Oblongo-ovalis, parum convexa, supra rufo-cuprea, nitida; capite antice obscure eruginoso, longifudinaliter

suleato ; thorace parce punctato; elytris punctulatis.

Long. 13 lin.

Hab. British Honpuras, Belize (Blancaneauc).

The head is rather deeply longitudinally sulcate, very delicately reticulate-striolate,

and with a few punctures. The thorax is evenly convex, very delicately reticulate-

striolate; punctured, the punctures very distinct, not very close together. The

scutellum is rather broad, triangular. ‘The elytra are not very convex, as wide at the

middle as at the base, gently sinuate below the shoulders, arcuately attenuate at the

apex, lightly impressed at the side below the shoulder and behind the middle; the

sutural area is also very lightly impressed at the middle, and there is a shallow impres-

sion near the suture not far from the apex; the punctuation is distinct, very delicate

at the apex, irregular, the punctures not very far apart.

This species bears a great resemblance to Lius dissimilis, but it has the head very

much smaller, and the elytra a little shorter and less acuminate.

164 SERRICORNIA.

CALLIMICRA.

Callimicra, Deyrolle, Ann. Soc. Ent. Belg. viii. p. 219 (1864).

Five species of this genus are described, all from Brazil. Six new species from

Central America are here added.

1. Callimicra dimidiata. (Tab. IX. fig. 9.)

Elongato-oblonga, convexa, nitida; capite thoraceque rufo-cupreis; scutello cupreo-sneo ; elytris virescenti-

cyaneis, crebre punctatis.

Long. 2 lin.

Hab. Panama, Bugaba (Champion).

The head is gently convex, with a longitudinal impressed line and a shallow fovea

in front, closely rugose, punctured, the punctures not very close together. The thorax

is convex, with the posterior angles and the base impressed ; finely reticulate-striolate

and distinctly punctured, the punctures not very far apart. The elytra are convex, with

a very slight impression below the shoulder at the side; rather finely and moderately

closely (but irregularly) punctured, with two or three lines of fine punctures on each

elytron.

2. Callimicra obtusa.

Elongato-oblonga, convexa, nitida, cyanea; capite aureo, sat crebre fortiter punctato; thorace evidenter

punctulato, limbo aureo-tincto; elytris convexis, punctatis, ad apicem obtuse rotundatis.

Long. 13 lin.

Hab. Panama, Bugaba (Champion).

This species is a little shorter than C. dimidiata and slightly less broad, but has the

elytra very obtusely rounded at the apex. ‘The upper part of the head is shining, with

scarcely any trace of striation, strongly punctured, the punctures rather near together ;

the lower part of the face is rugose; there is a well-marked central fovea. The thorax

has the disc very convex, with scarcely any trace of striolation, rather strongly punc-

tured, the punctures generally moderately close together; the sides have a rather

narrow, impressed, finely rugose margin ; the base is also transversely impressed, with

a rugose patch on each side; near the posterior angle there is a fine oblique raised

line. The scutellum is golden-green. The elytra have the lateral subhumeral impres-

sion more marked than in C. dimidiata; the surface is slightly uneven, but not strio-

late, more strongly punctured than in C. dimidiata, the punctures moderately close

together.

CALLIMICRA. 165°

3. Callimicra violaceipennis.

Elongato-oblonga, convexa, nitida ; capite thoraceque viridibus; elytris violaceis.

Long. 2 lin.

Hab. Mexico, Playa Vicente (Sailé).

This species is very close to C. odtusa, but is relatively longer and a little less broad.

The head is closely vermiculate-striolate, with the punctures less strong and not quite

so close together; the impression in front is more elongate. The thorax is very

similar, but differently coloured, and has the punctuation rather finer; the lateral

margins are scarcely impressed and are less distinctly rugose ; and the fine ridge at the

side is not continued to the posterior angles.

4, Callimicra lucida.

Elongata, convexa, nitida ; capite thoraceque aureo-viridibus ; elytris cyaneis.

Var. Capite thoraceque aureis.

Long. 13 lin.

Hab. Panama, Bugaba (Champion).

This insect is longer and narrower than any of the foregoing species. It is very

close to C. violaceipennis, but narrower; some of the specimens have the head and

thorax pale bluish-green, and others have these parts golden; these differences may be

sexual. The specimens with the head bluish-green have the front very delicately

reticulate-striolate and punctured, the punctures distinct and slightly separated from

each other; there is a shallow, longitudinal, median impression, with a fovea rather

below the middle. The specimens with the head golden have the front rugose, with the

punctures stronger and a little closer, and the fovea is large and deep. The thorax

has the convex disc almost smooth, moderately strongly punctured, the punctures not

very close together, the impressed margins and the base on each side rugose (rather

more rugose in the specimens with the golden colour); near the side and a little

removed from the hind angles there is a fine, short, raised line—in the examples with

the bluish colour this line more nearly extends to the hind angles. The scutellum is

bronzy. The elytra are dark steel-blue or inclined to violet, with the surface slightly

uneven and punctured, the punctures not very deep and not very close together.

5. Callimicra breviuscula.

Elongato-oblonga, convexa, nitida ; capite thoraceque cupreo-aureis, punctulatis; elytris cyaneis.

Long. 14 lin.

Hab. Mexico, Orizaba, San Miguel del Rio (Sad/é).

This species closely resembles C. od¢usa, but is not quite so obtuse at the apex of

the elytra. The head is rugose and punctured, the punctures not very close tugether.

The thorax has the disc convex, the base and posterior angles impressed; the surface

166 SERRICORNIA.

is reticulate-striolate on the disc, the reticulation gradually changing into rugosity at

the sides; the punctures are very distinct and not very close together. The scutellum

is brassy. The elytra are dark blue, somewhat strongly punctured, the punctures

rather close together.

In two examples the front of the head is green, and the rugosity appears to be a little

finer ; and the sides of the thorax are also more impressed. These may be males.

A specimen from Oaxaca with the elytra green appears to be referable to the same

species.

Three examples from Capetillo, Guatemala (Champion), may belong to this species,

but two of them (7%) have the thorax more broadly impressed at the sides as com-

pared with the supposed males alluded to above.

6. Callimicra angustula. (Tab. IX. fig. 10.)

Elongata, angusta, convexa, nitida ; capite magno thoraceque aureis, vel pallide cwruleis; elytris cyaneis.

Long. 14 lin.

Hab. Mzxico, Tuxtla (Sallé); GuatTemanta, San Juan in Vera Paz (Champion) ;

PanaMA, Volcan de Chiriqui 3000 to 4000 feet (Champion).

There is a little difference in the colour of the head and thorax, as in C. lucida;

but the difference is much less marked, and there is a slight corresponding difference in

the sculpture of the head. The head is large, convex, very delicately reticulate-

striolate, and punctured, the punctures not very near together ; the lower part of the

face transversely rugulose, the rugose surface more extended in the specimens with the

golden colour. The thorax is delicately reticulate-striolate and punctured, the punc-

tures small but distinct, slightly separated from each other; the margins are narrowly

impressed; the base is also transversely impressed; close to the lateral margin and

parallel to it there is a fine but well-defined ridge, commencing about the middle of the

side and nearly reaching the posterior angles. The scutellum is brownish. The

elytra are steel-blue, the surface slightly uneven and wrinkled, punctured, the punc-

tures irregular, moderately large, and not distinctly defined. The body beneath and

legs black.

A single example from El Tumbador, Guatemala, entirely of a dark steel-blue

above, may be referable to the same species.

SUPPLEMENT.

Durine the publication of the foregoing account of the Central-American Buprestide

several small collections have been received, containing many species new to our fauna

and additional specimens of recorded species from localities other than those already

noted. Hence this Supplement.

CHALCOPHORA (p. 1).

Chalcophora virginiensis (p. 2).

To the localities given, add :—Mexico, Zapotlan in Jalisco (Hoge); Honpuras, Bonacca

Island, Bay of Honduras (Gaumer).

In my remarks on this species mention is made of two Mexican examples which

differed from the typical form in having the smooth parts of the thorax wider and the

sides sinuate before the posterior angles. A good series of this form has now been

received from Zapotlan (Hoge), but I still hesitate to give it a distinctive name.

All the specimens agree in having the smooth parts, and especially the median line,

broader than in any North-American examples before me; but there is a specimen

in the British-Museum Collection labelled Mexico which, while agreeing in general

aspect and the sinuous sides of the thorax with the others from Zapotlan, has the

median smooth line of the thorax narrow. ‘The specimens from Zapotlan vary greatly

in the form of the thorax, some having the sides very strongly angular before the

middle and sinuous before the posterior angles; most of them have the sinuosity only

moderate, and one or two examples have the sides almost parallel behind. ‘The elytra

in the Zapotlan specimens have the longitudinal submarginal impression at their apex

narrow and rather sharply defined, a character in which they differ from the North-

American examples. The two Mexican specimens in the British Museum are slightly

intermediate.

PELECOPSELAPHUS (p. 8).

Pelecopselaphus acutus (p. 3).

To the locality given, add :—GuatTemaLA, Chimaltenango (Conradt) ; Panama, Bugaba,

~ 800 to 1500 feet (Champion).

MIXOCHLORUS (to precede the genus Aga@ocera, p. 4).

Mizochlorus, Waterhouse, Trans. Ent. Soc. Lond. 1887, p. 177.

The species upon which this genus is founded has much the appearance and coloration

168 SUPPLEMENT.

of Engyaulus (Tab. IV. fig. 9). Its affinity with Agwocera was not noticed until too

late for insertion in the proper place.

1. Mixochlorus suturalis. (Tab. IX. fig. 12.)

Mizxochlorus suturalis, Waterh. Trans. Ent. Soc. Lond. 1887, p. 178°.

Hab. Honpvuras! (Brit. Mus.).

The type of this species measures 6 lines in length. It is ofa bright green colour,

having the top of the head, a stripe on each side of the disc of the thorax, and a broad

stripe on the elytra dark coppery. The thorax has a well-marked longitudinal median

impression, which is green, a little narrowed at the anterior part, and near each side

there is an elongate impression extending from the base to within one-third of the

anterior margin; the lateral impression is shining and very strongly and distinctly

punctured. The prosternum is strongly punctured; the punctures are rather near

together, but are not crowded. The terminal segment of the abdomen is semicircularly

emarginate at the apex.

92. Mixochlorus lateralis.

Viridis, supra subsurdus; capitis vertice, thoracis disco (macula basali excepta) elytrorumque vitta lata

brunneo-cupreis.

Long. 43 lin.

Hab. Mexico, Orizaba (Sal/é).

The front of the head is moderately finely punctured as compared with M. suturalis ;

the punctures near together, but not crowded. The thorax is lightly transversely

impressed at the anterior margin; the disc is slightly raised anteriorly, the coppery

colour extending over the anterior half of the median impression, which is not so

distinct as in I. suturalis, and is more sparingly punctured posteriorly; the lateral

impression is sparingly punctured, more ovate, and does not extend much beyond

the middle of the length. The elytra have the sutural stripe bluish-green, the suture

itself being purple ; the narrow margin is dark blue, with a little green at the shoulder.

The prosternum is very coarsely punctured, and the punctures are crowded. The

terminal segment of the abdomen is truncate at the apex, or appears slightly emar-

ginate when viewed in some positions.

It is not impossible that MM. lateralis and M. suturalis may be sexes of one species,

but in the absence of any evidence that this is so I prefer at present to consider them

distinct.

AG/EOCERA (p. 4).

Ageocera gigas (p. 4).

To the Mexican localities given, add:—Ventanas in Durango (Hége, Forrer),

R. Papagaio in Guerrero 1200 feet (7. H. Smith).

The two examples from R. Papagaio have the suture of the elytra bright coppery-red.

SERRICORNIA. 169

8. Ageocera gentilis.

Halecia gentilis, Horn, Trans. Am. Ent. Soe. xii. p. 144.

Hab. Nortu America, South-western Texas !.—Muexico !, Coahuila}, Villa Lerdo in

Durango (Hége).

This species differs from A. gigas in having the thorax rather shorter and more

rounded in front, and more evenly and closely punctured.

The short antenne and the general form of this species agree well with Ag@ocera,

but are quite foreign to Halecia.

EUCHROMA (p. 5).

Euchroma goliath (p. 5).

To the localities given, add :— Mexico, Teapa in Tabasco (Hége), Temax in North

Yucatan (Gaumer); British Honpuras, Cayo (Blancaneaux); Guatemata, Capetillo

(Rodriguez); Payama, Bugaba 800 to 1500 feet (Champion).

HALECIA (p. 5).

Dr. Horn (Trans. Am. Ent. Soc. xii. p. 145), alluding to my remarks on the geogra-

phical distribution of this genus, states: ““I am not aware of any species from the

Atlantic region which can be referred to Halecia.” The North-American species to—

which I alluded is Hf. erythropus, placed by Mr. E. Saunders in his Catalogue under

Halecia, and | think rightly so. I find, however, that the species is doubtfully North-

American.

1 (a). Halecia debyi.

Sat brevis, crassa, aureo-viridis, nitida; capite crebre fortiter punctato, antice medio leviter impresso cupreo ;

thorace convexo, antice paullu angustato, crebre fortiter punctato, disco vittis duabus latis maculaque

laterali nigro-cyaneis ; elytris post medium latioribus, ad apicem oblique angustatis, costis cyaneis (hic et

illic interruptis) ornatis, interstitiis crebre rugoso-punctatis.

Long. 83 lin.

Hab. Guatemata (Brit. Mus., J. Deby).

This species most nearly approaches H. chrysodemotdes; but is a shorter and more

robust insect, and in its form and less narrowed thorax more nearly resembles Ag@ocera

than any species of Halecta known to me. Each elytron has four well-marked dark

blue costee—the first extends the entire length of the elytron, but is slightly interrupted

near the base and at a short distance from the apex; the second is abbreviated at the

base, and has an interruption at the middle of the elytron ; the third is abbreviated at

the base and apex; the fourth extends from the shoulder to the apex, but is slightly

interrupted below the shoulder.

BIOL. CENTR.-AMER., Coleopt., Vol. 111. Pt. 1, December 1889. 7,

170 SUPPLEMENT.

1(s). Halecia laticollis.

Depressa, nitida, subtus aureo-viridis; capite viridi, fortiter punctato, vertice vittisque duabus purpureo-

cupreis ; thorace sat lato, ante medium paullo angustato, cupreo-purpureo, sat crebre punctulato, linea

mediana (basi impressa) marginibusque lateralibus viridi-aureis, his medio leviter incrassatis, ad basin

sinuatis, basi prope angulos posticos fovea impressa; scutello viridi; elytris basi quam thorax vix lati-

oribus, post medium paullo ampliatis, dein ad apicem angustatis, purpureis violaceo-tinctis, singulis maculis

viridibus septem ornatis, margine fortiter dentato.

Long. 83 lin.

Hab. Panama, Chiriqui (T77rdtsch).

This species is allied to H. octopunctata, or perhaps more nearly to H. batesi, Saund.,

but is a shorter and broader insect. The upper part of the thorax is dark brownish-

purple verging into coppery-red near the front angles; the green of the lateral margin

is continued a little way round the anterior angles. The elytra are rather flat, and

have little trace of strize; each elytron has the following green marks :—a triangular

spot below the humeral callus, with the green continued along the margin for some

distance ; a round spot at the base; an oblique oval spot near the suture at one quarter

from the base ; a transverse spot in the middle; two spots a little less than halfway

between middle spot and the apex; and a short stripe at the apex close to the suture.

The marginal teeth of the elytra are very strong; the one immediately before the apex

is acute and directed slightly outwards, and the sutural angle itself is very acute and

turned obliquely inwards—in this respect H. laticollis differs from any other members

of the genus known to me.

3 (a). Halecia suffusa.

Brunneo-cuprea, nitida, pallide flayo-griseo-pulvercsa ; capite rufo-cupreo, sat crebre punctulato, medio leviter

impresso ; thorace cupreo, nitido, antice angustato, disco (linea mediana excepta) maculaque laterali ante

medium viridi-cyaneis, angulis posticis sat acutis, divergentibus; elytris brunneo-cupreis, tenuiter punc-

tato-striatis, cyaneo-maculatis ; abdomine eruginoso-tincto ; tarsis ceruleis.

Long. 62 lin.

Hab. Panama, David in Chiriqui (Champion).

This species has the form of /. beltti (Tab. I. fig. 6), but is a trifle narrower, and has

the elytra more acuminate at the apex. It differs from H. cyaneo-notata, Saund.,

which it still more nearly resembles, in having the posterior angles of the thorax acute

and diverging, and in having the elytra less prolonged at the apex. ach elytron has

the following dark blue spots :—one on the humeral callus; one near the base and

close to the suture ; three spots, one below the other, in a line down the middle of the

elytron, the hind one small and transverse; and an elongate spot near the apex. The

margins of the elytra are not dentate.

3 (s). Halecia pulverulenta.

Supra enea, subtus eruginosa, nitida, flavo-pulverulenta ; capite crebre fortiter punctato, antice canaliculato ;

thorace antice sat angustato, punctato; elytris punctato-striatis, marginibus subtus tarsisque ceruleia.

Long. 53-73 lin.

SERRICORNIA. 171

Hab. Panama, Bugaba in Chiriqui 800 to 1500 feet (Champion).

This species resembles H. Jeltii in form, but is of a more bronzy colour, and has no

spots. The thorax has a median impressed line which terminates posteriorly in a

shallow fovea; the punctuation is moderately strong—the punctures on the disc are

not very close together, but at the sides they are crowded and coarser. ‘The elytra are

moderately strongly punctured in lines, the lines in parts impressed; there is a very

shallow, scarcely perceptible impression at the side below the shoulder, and a second

oblique one, rather more noticeable at the side, about the middle; behind this there

is a slight swelling followed by a fairly well-marked impression.

GYASCUTUS (p. 7).

Gyascutus czlatus (p. 7).

To the Mexican localities given, add :—Chihuahua city (Hége).

Specimens of this species vary from 103 to 144 lines in length. It almost constantly

has a large brassy patch on each elytron, which is not mentioned in Leconte’s

description.

2. Gyascutus planicosta.

Chalcophora planicosta, Leconte, Proc. Ac. Phil. 1858, p. 66°.

Gyascutus planicosta, Leconte, Trans. Am. Phil. Soc. 1860, p. 189, t. 12. fig. 1.

Hab. Norv America, San Diego!.—Mexico, Northern Sonora (Morrison), Villa

Lerdo in Durango (Hoge). | |

In the series of specimens obtained by Mr. Morrison there is little variation in the

size of the individuals, but those from Villa Lerdo vary from 7 to 134 lines in length.

HIPPOMELAS (p. 7).

Hippomelas saginatus (p. 8).

To the Mexican localities given, add:—Atlixco, Matamoros Izucar and Cholula in

Puebla, Guadalajara in J alisco, Huetamo in Michoacan, Cuernavaca in Morelos (Hoge),

Vente de Zopilote 2800 feet, Savana Grande 3000 feet, both in Guerrero (4. #.

Smith).

The specimens from Cholula are all of a blue colour except two, one of which is

eneous, the other intermediate.

The specimens from Huetamo are all neous, as are also those from Venta de Zopi-

lote and Savana Grande.

The specimens from Cuernavaca are brassy-green, with strong blue or violet tints.

172 SUPPLEMENT.

2. Hippomelas sphenicus.

Buprestis sphenicus, Leconte, Proc. Ac. Phil. 1854, p. 83°, & 1858, p. 67.

Gyascutus sphenicus, Leconte, Trans. Am. Phil. Soc. xi. p. 190 (1860).

Hab. Norvu Amurica, Texas (Schott !)—Mexico, Monclova in Coahuila (Dr. Palmer),

Alamos (Buchan- Hepburn), Villa Lerdo in Durango (Hége).

This species is so very close to the blue form of H. saginatus that it might easily be

mistaken for it. It differs in having the thorax less narrowed in front, with the sides

much more rounded, and the posterior angles not or scarcely diverging. ‘The elytra

have a conspicuous yellow border at the base, and the abdomen has a row of greyish-

yellow pubescent spots at the sides.

Some of the specimens are of a brassy-black above.

PSILOPTERA (p. 8).

Psiloptera polymita (p. 8).

To the locality given, add:—Jalapa, Actopan (Hége), Acaguizotla in Guerrero 3500

feet (H. H. Smith).

1 (a). Psiloptera obscura.

Lampetis obscura, Thoms. Typi Bupr., Append. p. 11".

Hab. Mxxico!, Yolos, Oaxaca (Sallé).

1(s). Psiloptera severissima.

Lampetis severissima, Thoms. Typi Bupr., Append. p. 11".

Hab. Mexico}.

I have not seen an example of this species.

1(c). Psiloptera geniculata.

Elongata, elliptica, crassa, fusco-cuprea, nitida ; capite nitido, grosse punctato ; thorace transverso, ante medium

oblique angustato, parce grosse punctato, lateribus postice fere parallelis ; elytris sat parallelis ad apicem

gradatim acuminatis, fortiter striato-punctatis, interstitiis alternatim plagis parvis rugosis interruptis ;

femoribus cupreis apice viridi- et purpureo-tinctis, tibiis cyaneis, tarsis viridibus.

Long. 63-114 lin.

Hab. Mexico, 'Temax in North Yucatan (Gawmer).

Closely allied to P. polymita, but a little broader and less convex, with the thorax

more angulated at the sides. The head is much less closely punctured and more

shining, the punctures larger, leaving smooth raised intervals; with a line of pubes-

cence bordering the eye. The thorax has the punctures large and deep and much less

numerous, and not crowded towards the sides except at the extreme lateral margin and

at a spot behind each eye. The elytra are punctured in lines, the punctures large and

SERRICORNIA. 173

deep ; the alternate interstices are more convex towards the apex than the others, and

are interrupted by numerous small rugose impressions, the sublateral one appearing as

a line of elongate shining swellings; the lateral incrassate margin is thicker than in

P. polymita, and polished* ; the apex of each elytron is obliquely truncated, the outer

angle dentiform. The antenne are green, except the basal joint, which is coppery.

The femora are coppery (viewed from below), purple at the extreme apex, and with

some green and golden just before the apex. The metathoracic episterna are closely

and comparatively finely punctured and pubescent. ‘The apical segment of the abdomen

is also finely punctured and pubescent, with a bare, more coarsely punctured median

line.

Psiloptera monilis (p. 8).

To the localities given, add:—Mexico, Jalapa in Vera Cruz (Morrison, Hoge),

Actopan (Hoge).

The localities Escuintla and Costa Rica should be transferred to P. guatemalensis.

3(a). Psiloptera guatemalensis.

Lampetis guatemalensis, Thoms. Typi Bupr., Append. p. 12°.

Hab. Guatemata!, Coban (Sailé), Escuintla (Champion), Chimaltenango (Conradt) ;

Costa Rica (Van Patten).

If the examples from Sallé’s collection bearing this name are correctly determined

(and they appear to be so), I think it very doubtful whether P. guatemalensis should.

be separated from P. monilis. The specimens, however, from the above-mentioned

localities appear to be smoother than the ordinary form of P. monilis.

Psiloptera chalconota (p. 9).

To the Mexican localities given, add :—Amula 6000 feet and Iguala, both in Guerrero

(H. H. Smith).

Psiloptera hirtomaculata (p. 10).

To the locality Panama, add :—Tolé (Champion).

Psiloptera dilaticollis (p. 11).

To the Mexican localities given, add :—Villa Lerdo in Durango (Hoge).

* The specimens of P. obscura (Th.) have this margin more or less transversely finely wrinkled.

174 SUPPLEMENT.

DICERCA (p. 11).

Dicerca eneovaria (p. 12).

To the Mexican locality given, add :—Jalapa (Hége).

BUPRESTIS (p. 13).

Buprestis catoxantha (p. 13).

To the Mexican localities given, add:—Jalapa (Hége).

Buprestis piliventris (p. 13).

To the Mexican locality given, add :—Tapachula in Chiapas (Hoge).

CINYRA (p. 15).

3. Cinyra uniformis.

Elongata, sat nitida, enea cupreo-tincta; capite creberrime fortiter punctato, griseo-piloso; thorace antice

paullo angustiore, disco parce, lateribus crebre fortiter, punctatis, his fere rectis; elytris purpurascentibus,

sulcatis, sulcis tenuiter punctatis, interstitiis dorsalibus parce, lateralibus crebrius sat fortiter punctatis,

guttis numerosis aureis punctatis ornatis, singulis elytris apice oblique truncatis, bidentatis.

Long. 73 lin.

Hab. Mexico, Atlixco in Puebla (Hége).

This species has somewhat the form of C. costulata (Tab. I. fig. 20); but the head is

a trifle wider, the thorax a little less narrow, with the sides very gently arcuate, almost

straight, and the elytra have the apical teeth stronger and the sutural one rather more

produced. The thorax is rather strongly punctured, the punctures being crowded at

the sides but irregular and more separated on the disc; there is a very slight median

longitudinal impression in front, and a slight fovea in the middle of the base and an

inconspicuous one close to the base at a short distance from the posterior angles; the

lateral carina (viewed from the side) is quite straight, and terminates in a smooth spot

a little beyond the middle. ‘The elytra have very numerous small brassy spots, which

are quite irregular and inconspicuous. ‘The prosternum has a few small punctures.

4, Cinyra equalis.

Elongata, convexa, subparallela, obscure purpurascenti-cuprea, passim seneo-viridi-tincta ; capite creberrime

sat fortiter punctato, brevissime griseo-piloso ; thorace antice paullo angustato, crebre sat fortiter punctato ;

elytris sulcatis, interstitiis sat convexis, sat crebre evidenter punctatis, singulis elytris ad apicem truncatis,

bidentatis ; prosterno eeneo, crebre punctato.

Long. 44-54 lin.

Hab. Mexico, Ventanas in Durango (fége).

This is a rather more parallel species than the last, with narrower head and with the

elytra less gradually narrowed at the apex. The general colour is dull reddish-coppery

verging into purple, generally with obscure green tints on the dorsal surface, especially

SERRICORNIA. 175

on the disc of the thorax ; the lower part of the face is generally green. The thorax

is evenly convex, with a trace of a longitudinal median impression; rather strongly

punctured, the punctures crowded at the sides, slightly separated on the disc; the

lateral carina is not quite so straight as it is in C. wniformis, and is continued to near

the front angles. The elytra are sulcate, with the interstices posteriorly convex, rather

strongly punctured, the punctures slightly separated on the disc, but more crowded at

the sides. The apex of each elytron has two nearly equal teeth, the sutural one not

being produced beyond the outer one.

5. Cinyra sexspinosa.

Elongata, parum convexa, omnino eenea, crebre punctata ; elytris striatis, interstitiis postice convexis, singulis

elytris ad apicem trispinosis.

11:

Long. 63 lin.

Hab. Mexico, Acapulco in Guerrero (/ége).

The thorax is rather strongly punctured, the punctures crowded at the sides, slightly

separated on the disc; there is a very slight impression on each side of the base and a

shallow elongate fovea in the middle of the base ; the lateral carina does not reach the

middle of the side. The elytra are rather deeply striated, the strize punctured; the

interstices are posteriorly somewhat convex, the second and fourth more convex than

the others ; the punctures are rather strong, slightly separated on the dorsal interstices,

close together on the lateral ones; each elytron has at the apex three acute teeth,

the one at the suture and the one at the end of the second stria equal, the third at the

end of the fourth interstice more removed from the apex. The prosternum is rather

finely and not very closely punctured.

ISOPH/ENUS. (Tab. IX. figg. 11, 11 a-c.)

(To precede the genus Melanophila, p. 16.)

Elongate, parallel, Mentum very short and transverse, rounded at the sides, membranous anteriorly. Maxil-

lary palpi with the apical joint twice as long as broad, subcylindrical. Antenne with the pores in a large

cavity at the lower anterior portion of the joints, the cavities more lateral at the apical joints (fig. 11a).

Thorax transverse-quadrate. Scutellum rather small, pentagonal. Elytra narrower in the middle than

at the base or apex, leaving the abdomen exposed at the sides, rounded and denticulate at the apex.

Prosternal process acuminate at the apex, scarcely widened behind the coxe (fig. 116). Sternal cavity

formed by the mesosternum (which is rather large) and metasternum; the posterior margin of the

mesosternum, however, is slightly visible. Metathoracic episterna rather broad, somewhat narrowed

posteriorly, the epimera triangular, not covered by the elytra. The posterior cox are gradually wider

internally. The legs are slender; the tibie straight; the tarsi long, slender, the basal joint of the

posterior pair as long as the following four joints together, hairy, especially beneath, the second and third

joints with a fringe of white hairs at the apex representing the lamina, the fourth joint with a distinct

lamina (fig. 11 ¢).

I am in doubt as to the affinities of this genus, but on the whole it seems best to

place it before Melanophila. ‘The system of coloration and sculpture is more that of

Anthania.

176 _ SUPPLEMENT.

1. Isophenus parallelus. (Tab. IX. figg. 11-11 ¢.)

Elongatus, parallelus, viridi-ceruleus, parum nitidus; capite rugoso, vertice linea mediana nigra leviter

impressa ; thorace transverso, confertim rugoso, antice plaga triangulari nigra, subtilius rugosa ornato,

lateribus leviter arcuatis, basi fere truncata, angulis obtusiusculis; elytris rugosis, fascia ad medium nigra.

Long. 34 lin.

Hab. Mexico, Tepetlapa in Guerrero 3000 feet (H. H. Smith).

The head is a little convex in front, the clypeus very gently emarginate ; the labrum

leathery. The antenne are placed in a socket under a slight but distinct ridge. The

thorax has its anterior margin very slightly advanced in the middle; the base is almost

straight. The elytra are scarcely as broad as the thorax, narrowed at their middle,

rugose, more asperate towards the apex.

MELANOPHILA (p. 16).

Melanophila limbata (p. 16).

To the Panama locality given, add :—Bugaba 800 to 1500 feet (Champzvon).

Melanophila atra (p. 17).

To the localities given, add:—Mexico, Ciudad in Durango 800 feet (Forrer) ;

GuaTEMALA, Panzos and Coban in Vera Paz (Conradt).

ANTHAXIA. (To precede the genus Polycesta, p. 18.)

Anthaxia, Eschscholtz, Zool. Atlas, i. p. 9 (1829). .

The species of this genus, as at present constituted, are found in most parts of the

World. The Central-American representatives belong to a peculiar group, all of which

are American, and of which Anthazia vitticollis, Gory, may be taken as the type. The

species much resemble Agrilus, and some of them have been described under that

genus. .

1. Anthaxia vitticollis.

Agrilus vitticollis, Gory, Mon. iv. p. 215, t. 35. fig. 205°.

Hab. Mexico, Cordova (Sallé), Oaxaca (Hoge); Sour America, Monte Video |.

2. Anthaxia flavimana.

Anthaxia flavimana, Gory, Mon. iv. p. 291, t. 49. fig. 285*; Leconte, Trans. Am. Phil. Soc. xi.

p. 219 (1860) *.

Anthazia gracilis, Melsh. Proc. Ac. Phil. i. p. 148.

Hab. Norra America}, Southern States 2.—Mzxico, Northern Sonora (Morrison) ;

Panama, David (Champion).

SERRICORNIA. 177

3. Anthaxia fasciata.

A, vitticollc sat similis, supra opaca, subtus viridis vel cyanea, nitida; capite antice leviter concavo, viridi, con-

fertim rugoso; thorace reticulato, viridi, disco nigro-fusco, linea mediana viridi sxepe postice abbreviata ;

elytris subtiliter rugosis, striatis, obscure purpurascentibus, fascia paullo ante medium obscure rufa

ornatis, sutura basi et ad apicem viridi.

Long. 24 lin.

Hab. Mexico, Presidio (forrer), Acapulco in Guerrero (Hége).

This species resembles A. vitticollis, but is relatively a little shorter. The head is

less impressed in front. The thorax is rather more convex, lightly impressed near the

hind angles, with a fovea in front of the scutellum, which is green. The elytra are.

less narrowed at the apex. In some specimens the green colour in the middle and at

the sides of the thorax is very obscure or absent, as is also the red fascia of the elytra.

POLYCESTA (p. 18).

I have now before me five specimens of this genus, belonging to four or five species,

but without making a study of the genus and an examination of original types, it is

impossible to name them satisfactorily. ‘The following was overlooked in the earlier

part of this work.

8. Polycesta cribrana.

Polycesta cribrana, Mann. Bull. Mose. 1859, iii. p. 182°.

Hab. Mexico 1.

Only known to me from description.

ACHERUSIA. (To precede the genus Thrincopyge *, p. 19.)

Acherusia, Lap. & Gory, Mon. i. p. 1 (1836).

Three species of this genus have been described, all from Brazil.

1. Acherusia piliventris.

Acherusia piliventris, Saund. Trans. Ent. Soc. Lond. 1869, p. 8, t. 1. fig. 7 ‘.

Hab. Mexico, Temax in Northern Yucatan (Gawmer).—Braziu'.

The Mexican specimen differs from the type in being larger (53 lines long), and in

having the elytra darker with scarcely any trace of the coppery-red colour on the

shoulders.

ACMEODERA (p. 20).

Acmzodera cuprina (p. 20).

To the Mexican localities given, add :—Tacambaro in Michoacan (/oge), Amula in

Guerrero 6000 feet (A H. Smith).

* This name was accidentally misprinted T’rincopyge, on p. 19.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, December 1889. 2A

178 , SUPPLEMENT.

A single example from Pinos Altos in Chihuahua (Buchan-Hepburn) differs from

the ordinary type of this species in being of a golden-green colour.

2 (a). Acmeodera amplicollis.

Acmeodera amplicollis, Leconte, Proc. Ac. Phil. 1866, p. 383"; Horn, Trans. Am. Ent. Soc. vii.

p- 6.

Hab. Nortu Ammrica, Arizona}.— Mexico, Pinos Altos in Chihuahua (Buchan-

Hepburn). .

The three examples received from Chihuahua may be referable to this species, but

they are 64 lines long (which is rather larger than the size given by Dr. Horn) and

they have the elytra dull green instead of blue.

Acmeodera flavomarginata (p. 21).

To the localities given, add :—Mexico, Villa Lerdo in Durango, Guadalajara and

Zapotlan in Jalisco, Tula in Hidalgo, Jalapa in Vera Cruz (Hége), Temax in North

Yucatan (Gaumer); Guatemaa, Escuintla (Conradt).

The specimens from Villa Lerdo are broader than is usual, with two transverse bands

at the apex of the elytra; one example, however, has these bands quite irregularly

broken.

The examples from Jalapa are of the ordinary form, with a single broad band at the

apex of the elytra; some examples, however, have this band partially divided into two

by a black spot at the suture and another at the side.

The specimens from Zapotlan are of the usual form, but have the fourth interstice

of the elytra more distinctly costate; the apical bands are a little irregular, distinct

from each other, and there is a very small yellow spot close to the apex ; one example

has a transverse yellow band emitted from the apex of the lateral yellow stripe.

The examples from Tula (and one from Escuintla) have the fourth interstice of

the elytra costate, but the apical bands are more or less approximate or united at

the middle of each elytron, as is commonly the case; two of the examples have an

extra yellow spot at the apex.

7 (4). Acmeodera proxima.

A, flawomarginate simillima; nigra, elytris usque ad medium flavo-marginatis, ante apicem fascia lata sanguinea

ornatis, fascia sepe maculis tribus nigris interrupta.

Long. 5-6 lin.

Hab. Mexico, Acapulco in Guerrero (Hége, H. H. Smith), Rincon in Guerrero 2800

feet (H. H. Smith).

This only differs from the ordinary form of A. flavomarginata in having the elytra a

SERRICORNIA. 179

little longer and more gradually acuminate, and in having no yellow margin to the

thorax.

Acmezodera flavosparsa (p. 22).

To the locality Mexico, add :—Amula in Guerrero 6000 feet (H. H. Smith).

Acmezodera rubronotata (p. 22).

To the Mexican localities given, add:—Pinos Altos in Chihuahua (Buchan-Hepburn),

Tacambaro and Huetamo in Michoacan, Matamoros Izucar and Atlixco in Puebla,

Mexico city (Hoge), Tepetlapa 3000 feet, Acaguizotla 3500 feet, Chilpancingo 4600

feet, and Venta de Zopilote 2500 feet, in Guerrero (H. H. Smith).

Acmzodera impluviata (p. 22).

To the Mexican localities given, add:—Ventanas 2000 feet (Forrer), Acapulco,

Venta de Peregrino, Dos Arroyos 1000 feet, R. Papagaio 1200 feet, in Guerrero (H. H.

Smith).

10 (a). Acmeodera trifasciata.

Nigra, nitida, pubescens; thorace creberrime punctato ; elytris fortiter striato-punctatis, fasciis tribus sanguineis

ornatis.

Let

Long. 43-6 lin.

Hab. Mexico, Acapulco (Hoge, H. H. Smith), Dos Arroyos 1000 feet (H. H. Smith).

The head is densely punctured. The thorax is not broader than the base of the

elytra, broadest at the posterior angles, arcuately narrowed anteriorly ; strongly punc-

tured on the disc, which is rather deeply triangularly impressed, rugose at the sides,

with an impression at the base at a short distance from the anterior angles. The

elytra are long, gradually narrowed posteriorly, a little more rapidly beyond the third

red band ; strongly punctured in lines, the interstices scarcely convex (except near the

apex), and almost impunctate. ‘The first red band is at the base, extending from one

humeral callus to the other; the second is at the middle, and ascends a little at the

suture; the third is halfway between the middle one and the apex, rectilinear.

Acmezodera scalaris (p. 23).

To the Mexican localities given, add :—Saltillo in Coahuila (Hége), Monclova in

Coahuila (Dr. Palmer), Monterey in Nuevo Leon, Villa Lerdo in Durango, Tula in

Hidalgo, Huetamo in Michoacan, Matamoros Izucar in Puebla (Hoge), Amula 6000

feet, Acaguizotla 3500 feet, Chilpancingo 4600 feet, Venta de Zopilote 2800 feet, and

Hacienda de la Imagen 4000 feet, in Guerrero (4. H. Smith).

The markings in this species are fairly constant, but in the series from Guerrero the

2A2

180 SUPPLEMENT.

black prevails to a much greater extent than in the specimens from the more northern

localities. The yellow at the sides of the thorax varies considerably in specimens from

the same locality.

In the specimens from Villa Lerdo the yellow prevails, except in one example in

which the yellow is reduced to a minimum; the sutural stripe of the elytra is repre-

sented by a short streak near the scutellum; the lateral stripe is narrow, and leaving

the margin posteriorly joins a transverse spot on the disc; the apical half of the elytra

is black, with three or four yellow marginal spots, and one near the suture behind the

spot on the disc.

A series from Acapulco, and single specimens from Venta de Peregrino and Dos

Arroyos in Guerrero, and one from Saltillo in Coahuila, have no yellow at the sides of

the thorax; but the yellow greatly prevails on the elytra.

It should be noted that none of the Mexican specimens of this species have the

stripes on the elytra notched as figured by Dr. Horn (Trans. Am. Ent. Soc. vii. t. 1.

fig. 20) under the name of A. mima.

Dr. Horn (J. ¢. p. 26) gives A. semivittata, Lec., as a synonym of A. mima, Gory.

The insect figured and described by him is the one known to me as A. semivittata,

which, judging from Gory’s figure and decription, is quite different from A. mima. I

do not know on what authority they are united.

Acmezodera picta (p. 24).

To the Mexican locality given, add :—Monclova in Coahuila (Dr. Palmer), Villa

Lerdo in Durango (Hége).

16. Acmezodera flavopicta.

Acmeodera flavosticta, huj. op. p. 24 (nec Horn).

To the locality Mexico, add :—Paso del Norte in Chihuahua, Villa Lerdo in Durango,

Tula in Hidalgo (Hoge).

Iam somewhat in doubt whether the specimens from Paso del Norte and Villa Lerdo

should be referred to the same species; the markings on the elytra are very similar,

but the spots are a little larger; these examples seem to form a passage to A. delec-

tabilis.

16 (a). Acmeodera delectabilis. (Tab. IX. figg. 14, 14.)

Sat lata, enea, nitida, pubescens ; capite crebre fortiter punctato, medio impresso; thorace lato, crebre fortiter

punctato, ad latera crebrius punctato, antice oblique arcuatim angustato, disco postice impresso, basi

utrinque fovea impressa, angulis posticis rotundatis, lateribus post medium macula flava ornatis; elytris

basi quam thorax angustioribus, postice parum angustatis, ad apicem arcuatim attenuatis, dorsim depres-

siusculis, fortiter striato-punctatis, interstitiis parce subseriatim punctatis, viridibus cyaneo-marginatis vel

totis cyaneis, fasciis irregularibus maculisque flavis ornatis ; corpore subtus griseo-pubescente.

Long. 43-6 lin.

SERRICORNIA. 181

Hab. Mexico, Villa Lerdo in Durango (Hége).

This is probably only a variety of A. flavopicta, in which the yellow greatly prevails

on the elytra. The yellow spot at the sides of the thorax is very conspicuous, and in

one example extends obliquely towards the disc.

One example, which may be another variety of this species, from Villa Lerdo,

appears to have the thorax deformed, the posterior angles projecting and truncate.

This has the sides of the thorax margined with yellow, but the yellow does not reach

the front angles. The elytra are yellow with round blue-black spots. The prosternum

is decidedly more strongly punctured (fig. 14 a).

Acmeodera setosa (p. 26).

To the locality Mexico, add:—Matamoros Izucar in Puebla, Colima city, Acapulco

(Hoge), Amula 6000 feet, and Acaguizotla 3500 feet, in Guerrero (H. H. Smith),

Temax in Northern Yucatan (Gaumer).

Some examples have the markings reduced to two small oblique spots on each elytron ;

two from Colima have only one spot.

Acmeodera exilis (p. 27).

To the locality Mexico, add:—Teapa in Tabasco (H. H. Smith).

ACTENODES (p. 28).

Actenodes chalybeitarsis (p. 28).

To the Mexican localities given, add:—Villa Lerdo in Durango, Misantla and Jalapa

in Vera Cruz, Acapulco and Chilpancingo in Guerrero, Tapachula in Chiapas (Hége).

Actenodes fulginea (p. 29).

To the locality given, add :—Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui

3000 feet (Champion).

Actenodes regularis (p. 29).

A single example from Jalapa, 53 lines in length, differs from the one from Orizaba

in having the lower band of the elytra turned down at the outer margin.

Actenodes hopfneri (p. 30).

To the Mexican locality given, add :—Jalapa in Vera Cruz (Hoge).

6 (a). Actenodes metallica.

Elongata, angusta, snea, subnitida; thorace olivaceo-neo, subtiliter crebre punctulato, transversim late

impresso; elytris thorace lateribus post medium acuminatis, acute serratis, nigrescenti-olivaceis, sub-

182 SUPPLEMENT.

tiliter punctulatis, ad apicem paullo asperatis, margine basali vittaque apicali aureo-viridibus, ad medium

fascia lata nigro-purpurea, antice et postice aureo-viridi et rufo-cupreo marginata, ornatis.

Long. 53 lin.

Hab. Guatemata, Panzos in Vera Paz (Conradt).

This species closely resembles A. hopfneri (Gory), but the general colour is of a less

brown tint. The head has a deep longitudinal median channel, which (as well as a

line bordering the eye) is green; the raised parts are not much punctured. The thorax

is much more finely punctured, and the transverse impression is more marked. The

elytra have the fascia not quite so broad, the upper border of the fascia ascends much

less at the suture, and the posterior border does not descend at the suture; the upper

border in the specimen described is interrupted near the suture; the suture is green

at the base as far as the fascia, and also for a short distance behind the fascia; the

punctuation is much finer than in A. hopfneri, but the surface is slightly rough at the

apical margins. The prosternum is green, with a transverse coppery line anteriorly,

very closely, evenly, and moderately strongly punctured; the process which enters the

mesosternum is very narrow. The middle of the sterna and basal segment of the

abdomen is green.

Actenodes calcarata (p. 31).

To the localities given, add :—Mexico, Jalapa and Misantla in Vera Cruz, Cuernavaca

in Morelos (Hége); GuaTEMALA, Yzabal (Champion).

Actenodes undulata (p. 31).

To the localities given, add :—Muexico, Temax in Northern Yucatan (Gawmer).

Actenodes humeralis (p. 31).

Three examples apparently referable to this species ; two of which, from Chilpancingo,

have no humeral spot on the elytra, and the third, from Bugaba, has a reddish-coppery

streak at the suture at the base, and a streak near the apex in the middle of the

elytron.

COLOBOGASTER (p. 33).

Colobogaster cyanitarsis (p. 34).

A single specimen from Mochitlan in Guerrero (Baron) agrees with the one already

recorded in having the posterior angles of the thorax diverging and truncated ; but the

sides of the thorax and elytra are shaded with green, and the tarsi are also green. I

think, however, that the two specimens are certainly conspecific; but probably they

should be separated from cyanitarsis.

They may belong to C. infra-viridis, Th. (p. 84). The following expressions are not

SERRICORNIA. . 183

sufficiently definite to enable me to decide:—‘ Prothorax lateribus subhexagonus.”

-“ Corpus subtus tenuissime et sparsim punctatum.” ‘“ Abdominis segmentum ultimum

apice 3-spinosum.” “ Trés-voisin du C. cyanitarsis, mais le contour latéral du prothorax

est autre; il est non sinué au milieu et rétréci en arriére.” “ La punctuation en dessous

est plus forte.”

The apex of the abdomen is trispinose.

CHRYSOBOTHRIS (p. 35).

(a).* 1. Chrysobothris delectabilis. (Tab. IX. fig. 13.)

Viridis, supra cyanescenti-viridis; thorace antice parum angustato, convexo, subtiliter punctulato; elytris

nigro-violaceis, tenuiter punctulatis, cyaneo-viridi-maculatis, pone medium fovea rotunda profunda

impressis ; abdomine cyaneo-maculato; tarsis cyaneis.

Long. 94 lin.

Hab. Panama, Chiriqui (Z7ré¢tsch).

This species should be placed at the head of the genus, or it might with equal pro-

priety be placed at the end of Colobogaster. It differs from all its allies in the compa-

ratively elongate thorax. The head is closely and strongly punctured at the lower part

of the face, less closely at the upper part. The thorax is convex, much narrower than

the elytra, about one-third broader than long, not much narrowed in front, gently

sinuate at the sides at the middle, slightly wider at the posterior angles, which descend

perpendicularly on to the elytra; there is a very slight longitudinal median impression ;

the median basal lobe is narrow. The elytra are formed very much as in Colobogaster

chlorosticta, but are rather more narrowed at the apex; the suture for one-third its

length from the base is green; each elytron has a bluish-green band at the base and

an oblique band before the middle, the latter extending from the margin to about the

middle of the elytron, where it is dilated, the surface here being impressed and more

strongly punctured ; there is a small spot close to the suture at the apex of the sutural

stripe; behind the middle, near the side, there is a deep round fovea, with a short trans-

verse spot crossing it, and between this and the suture is another spot; the apical

margin is also blue-green. The abdomen has the apical segment truncated, with the

outer angles of the truncature dentiform, the middle part of the apical margin produced

a trifle beyond the level of the outer angles.

Chrysobothris capitata (p. 36).

To the localities given, add :— Mexico, Tabi in Yucatan (Ff. D. G.).

Chrysobothris melazona (p. 38).

To the localities given, add:—Muexico, Teapa in Tabasco (H. H. Smith); Bririss

Honpuras, Cayo (Blancaneaur); GuaTeMALa, Coban in Vera Paz (Conradt).

* The letter (a) &c. placed thus signifies that the species precedes No. 1.

184 SUPPLEMENT.

23 (a). Chrysobothris densa.

Elongato-oblonga, depressiuscula, omnino brunneo-cuprea, parum nitida; clypeo late emarginato; thorace

brevi, lato, angulis oblique truncatis, crebre sat fortiter punctato, disco nitido, parce punctulato, medio

leviter sulcato, lateribus medio fere parallelis ; elytris quam thorax quadruplo longioribus, parum latioribus,

erebre fortiter punctatis, ad latera rugosis; costa suturali (basi abbreviata) bene elevata fere recta; costa

secunda postice solum visa, tertia brevi irregulari ad medium solum distincta ; marginibus serratis.

Long. 43 lin.

Hab. Mexico, Ciudad in Durango (Hoge).

This species evidently belongs to Dr. Horn’s Group IV. (Tr. Am. Ent. Soc. xii.

p. 84), and is most nearly allied to C. pusilla, Lap. & Gory. The prosternum has the

anterior margin slightly arcuately advanced ; in the male it is closely and rather strongly

punctured and pubescent, with a narrow smooth median line; in the female the punc-

tures are less close, and the smooth part is much wider at the apex, the latter with only a

few punctures and scarcely any pubescence. The head in the male is densely punctured,

rather dull, with a smooth longitudinal line on the vertex; in the female it is more

shining, much more coarsely but densely punctured; there are traces of two small

smooth spots, more conspicuous in the female than in the male; the clypeus has the

emargination rather wide and deep, slightly angular, with the lateral lobes straight in

front. The anterior tibie are only slightly curved, enlarged at the apex for rather

more than one-third their length. The abdomen has the last ventral segment semi-

circularly emarginate at the apex in the male, somewhat triangularly notched in the

female. ‘The elytra have the sutural costa almost parallel to the suture and not curved

away from it at the apex; the second costa is somewhat irregular, commencing about

the middle of the elytra, and makes more or less of a curve near the apex; the third

costa is only indicated by a slight irregular ridge at about the middle; there is a

transverse shallow impression on the disc before the middle, a smaller round one at the

apex of the third costa, with some irregular smooth marks above and below it, and

between the sutural costa and the second costa are two vague smooth spots (one above

the other) not far from the apex.

Chrysobothris acutipennis (p. 42).

To the localities given, add:—Mexico, Ventanas in Durango (Hége), Temax in

Northern Yucatan (Gawmer); GuatEMALA, Chacoj in Vera Paz (Champion).

Chrysobothris costifrons (p. 45).

To the Mexican localities given, add :—Amula in Guerrero 6000 feet (H. H. Smith).

30 (a). Chrysobothris xqualis.

Sat elongata, enea, nitida; capite crebre fortiter punctato, clypeo late leviter emarginato; thorace lato, sat

convexo, lateribus rotundatis, crebre fortiter punctatis, disco minus crebre subtilius punctulato; elytris ad

SERRICORNIA. 185

apicem gradatim arcuatim attenuatis, haud crebre punctatis, tricostatis, costa suturali fere recta (basi

abbreviata), costa secunda (basi longe abbreviata) medio curvata, tertia ad medium solum distincta.

Long. 4-6 lin.

Hab. Mexico, Temax in Northern Yucatan (Gauwmer).

This species belongs to the C. multistigmosa group, and is most nearly allied to

C. distincta, Lap. & Gory, but is rather shorter, more brassy in colour, and has the

sides of the thorax rounded. The head has two small smooth spots in front. The

thorax is short and broad, and has the sides unusually rounded; the punctuation on

the disc is fine, and the punctures are not very close together; there is a very slight

trace of a median impression. The elytra, as compared with other species in this group,

are rather short; they have the punctures very distinct and slightly separated from each

other; there is a small brassy impression interrupting the basal part of the second

costa, another (more transverse) at the apex of the third costa, and a third at some

distance from the apex, between the first and second coste; the first costa is recti-

linear, a little more separated from the suture at the apex than at the middle; the

second costa, which commences a little before the middle of the elytron, is curved at its

middle to avoid the brassy spot; the third costa is short, turns down anteriorly a little

below the shoulder, and terminates posteriorly in the impression. The prosternum in

the male is closely punctured, with a smooth median line; in the female it is smooth,

with a few punctures at the sides. The abdomen in the male has a shallow median

channel for its whole length, the terminal segment serrate at the sides, with a rather

wide but shallow trapezoidal excision at the apex; in the female there is a very small

semicircular emargination at the apex, the angles of the emargination very acute. The

anterior femora have the large triangular tooth denticulate on the outer edge. ‘The

anterior tibize are curved; enlarged at the apex in the male, simple in the female.

_ Chrysobothris distincta (p. 45).

To the Mexican localities given, add:—Venta de Zopilote and Amula in Guerrero

(H. H. Smith).

Chrysobothris multistigmosa (p. 46).

To the Mexican localities given, add :—Acaguizotla in Guerrero 1500 feet (H. H.

Smith), Temax in Northern Yucatan (Gawmer).

Chrysobothris lateralis (p. 47).

According to Dr. Horn this species is C. debilis, the type specimen of which does not

show the red sides to the thorax. This is so conspicuous in all the examples I had seen

that I could not credit Leconte omitting to notice it. The specimens received from

Mr. Morrison with the name C. debilis are, according to Dr. Horn, C. “iva, Horn (Trans.

Am. Ent. Soc. xiii..p. 101), a species occurring in Texas and Arizona.

BIOL, CENTR.-AMER., Coleopt., Vol. III. Pt. 1, December 1889. 2B

186 SUPPLEMENT.

STENOGASTER (p. 48).

Stenogaster costifer (p. 48).

To the Mexican locality given, add :—Chilpancingo in Guerrero 4000 feet (7. H.

Smith), Temax in Northern Yucatan (Gaumer).

By some unfortunate accident a portion of my MS. referring to a third species of

Stenogaster and to the genus Trypanidius was omitted from p. 49. The sentence at

the bottom of p. 48, ‘This and the following species are unknown to me” refers to

Stenogaster fossulatus and the following :—

3. Stenogaster morosus.

Stenogaster morosus, Chevr. Coll. Mex. Cent. ii. fasc. 6, no. 135°.

Hab. Mexico, Orizaba 1.

This insect is stated to resemble 8. biteniatus, a species I have placed in the

following genus :—

TRYPANIDIUS. (To precede the genus Cyphothoraz, p. 49.)

Trypanidius, C. O. Waterhouse, Trans. Ent. Soc. Lond. 1887, p. 179.

This name was proposed by me for Stenogaster biteniatus, which differs from the

typical Stenogaster in having the second, third, and fourth tarsal joints furnished with

a lamina.

The two species are both apparently peculiar to our fauna.

1. Trypanidius bitzniatus.

Stenogaster biteniatus, Chevr. Col. Mex. Cent. ii. fasc. 6, no. 136°.

Stenugaster pulverosus, Gory, Mon. iv. p. 204, t. 34. fig. 195°.

Hab. Mexico! 2, Puebla, Orizaba, Cordova (Sallé), Cerro de Plumas (Hége); GuATE-

MALA, Panzos in Vera Paz (Conradt).

2. Trypanidius infrequens.

Trypanidius infrequens, C. O. Waterh. Trans. Ent. Soc. Lond. 1887, p. 179°.

Hab. Mexico (Brit. Mus.'), Chilpancingo in Guerrero 4600 feet (H. H. Smith).

~PARADOMORPHUS (p. 51).

Paradomorphus vermiculatus (p. 51).

To the Mexican locality given, add :—Chilpancingo in Guerrero 4600 feet (H. H.

Smith).

SERRICORNIA. 187

9(a). Paradomorphus carissimus. (Tab. IX. fig. 16.)

Sat brevis, crassus, eneo-griseus, pubescens ; capite leviter convexo, crebre evidenter punctato; thorace sat

lato, crebre evidenter punctato, lateribus arcuatim rotundatis ; elytris cyaneis, sat crebre tenuiter punc-

tulatis, dimidio basali aureo-cuprea, rugosa, macula sat magna communi cyanea, fascia ante apicem et

apice ipso griseo-pubescentibus ; corpore subtus dense albo-pubescente.

Long. 3 lin.

Hab. Muxico, Amula in Guerrero 6000 feet (H. H. Smith).

This very handsome species is allied to P. biplagiatus, but is a much broader insect.

The head has a slight impression above the clypeus. The thorax is without impressions,

sparsely clothed with short grey pubescence, rather strongly punctured, the punctures

often touching each other in a transverse or oblique direction, the sides slightly rugose ;

the anterior part is gently convex, the base lightly impressed. The elytra have no

costa. ‘The prosternal chin-piece is gently emarginate. The abdomen has the lateral

carina of the basal segment nearly rectilinear posteriorly. ‘The basal joint of the

posterior tarsi is very short.

13. Paradomorphus gibbifrons. (Tab. IX. figg. 20, 20 a.)

Obscure cupreus, parum nitidus; capite longitudinaliter sulcato, fronte bigibbosa; thorace medio et ad latera

impresso, impressionibus sordide aureo-pubescentibus, lateribus leviter arcuatis ; elytris obscure purpureo-

cupreis, rugosis, ante medium macula communi quadrata postice rama transversa juncta, fasciaque ante

apicem sordide aureis ornatis.

Long. 24 lin.

Hab. Muxico, Mescala in Guerrero (ZH. H. Smith).

This species has the form of Agrilus pullulus (Tab. VI. fig. 10), but the forehead is

more prominent than in that insect. The head is shining, obliquely striolate in

front, strongly punctured on the forehead, which is prominent and biconvex. The

thorax is shining, moderately closely punctured, with slightly raised oblique lines near

the front angles; the disc is longitudinally impressed, and the impression diverging in

front and at the base forms a letter X; the posterior ridge is well marked, short, nearly

straight, not quite reaching the base. The elytra are darker than the rest of the insect,

with the sutural area tinted with dark blue, and the subcosta fairly well marked; the

dull golden pubescence forms an oblong quadrangular spot just before the middle

(leaving a round bare spot in the centre), emitting an oblique band posteriorly to the

margin; there is also a band before the apex. The prosternal chin-piece is very widely

but very slightly emarginate. The prosternum is finely margined, finely and moderately

closely punctured, arcuately acuminate posteriorly. The abdomen has the lateral carina

deeply sinuate about the middle, with a golden spot on the upper margin (fig. 20 a).

AGRILUS (p. 57).

I regret that in numbering the species in my manuscript I accidentally omitted to

number A. sudlateralis, and the printer numbered it 61 instead of 60 (a), and altered

2B2

188 SUPPLEMENT.

the whole of the subsequent numbers after page 59 was printed. The following

alterations in my table of the species is now rendered necessary :—For nos. 46-89 read

46-90, for 90-91 read 91-92, and in all cases read one number higher to 141.

1(a). Agrilus pilosus. (Tab. IX. fig. 17.)

Cupreo-eneus, parum nitidus, confertim punctatus, flavo-griseo-pilosus; capite ruguloso, antice impresso ;

thorace subquadrato, transversim ruguloso, disco antice paullo gibboso medio impresso, basi medio

bi-impressa, lateribus leviter arcuatis; elytris postice paullo declivis, haud costatis, pube flavo-grisea

ornatis, ad apicem sat acuminatis, apice ipso cupreo serrulato.

Long. 44 lin.

Hab. Mexico, Chilpancingo in Guerrero 4600 feet (H/. H. Smith).

This is a dull, closely sculptured species, clothed above and below with short sandy

pubescence, which forms spots and bands on the elytra. The head is impressed in

front, with a very slight swelling above each antennal socket, the vertex with close,

oblique, punctured grooves. The thorax is a little broader than long, scarcely more

narrowed in front than at the base, punctured, and closely obliquely rugulose; the

disc is raised anteriorly (the middle of the anterior margin arched forwards), with an

oval impression on the highest part. The elytra at the base are as broad as the

thorax, slightly narrower below the shoulders, again broader behind the middle,

and then narrowed to the apex; slightly flattened on the disc; densely rugose; the

pubescence forms the following markings :—a patch at the scutellum, two small spots

at one-third from the base, a fascia at the middle, a broader fascia at a short distance

from the apex, and two small spots just before the apex. The prosternal chin-piece is

short and very distinctly emarginate. The prosternum is closely rugose, lightly impressed

in the middle. The metathoracic episterna are closely punctured. The abdomen has

the pubescence somewhat congested at the sides, forming vague spots; the apical margins

of the segments are smooth, and there is a smooth spot at the side of the apical

segments; the lateral carina of the basal segment is slightly angularly bent at the

middle.

Agrilus oculatus (p. 60).

To the Mexican locality given, add :—Chilpancingo in Guerrero 4600 feet (H. H.

Smith).

Agrilus distans (p. 64).

To the Mexican locality given, add:—Amula in Guerrero 6000 feet (H. H. Smith).

The specimen from Amula, probably a male, is altogether a little narrower than the

type. It has the spots on the elytra (especially the posterior one) more elongate. The

abdomen has a conspicuous pale yellow spot at the side on the upper margin of the

basal segment, and the lateral carina here is more deeply sinuate than in the type.

SERRICORNIA. 189

Agrilus nodifrons (p. 68).

To the Mexican locality given, add:—Dos Arroyos in Guerrero 1000 feet (H. H.

Smith).

28 (a). Agrilus cavifrons, (Tab. IX. fig. 18.)

Sat latus, depressiusculus, cupreo-sneus; capite antice excavato, inzequali, sericeo-pubescente ; thorace trans-

verso, antice paullo angustato, crebre fortiter punctato, disco excavato ruguloso, lateribus albo-tomentosis,

ad angulos posticos carina brevi distincta introrsum directa; elytris fuscis, crebre punctatis, basi thorace

paullo latioribus, sub humeris sinuatis, ante apicem angustatis, ad apicem paullo dilatatis, cupreis,

denticulatis, singulis costa levi nitida instructis.

Long. 82 lin.

Hab. Mexico, Venta de Zopilote in Guerrero (H. H. Smith).

This very fine species is quite unlike any other in our fauna; it is perhaps most

nearly allied to A. caudalis, Lap. & Gory. The head has the whole of the front

concave. The thorax has the deep discoidal impression broad posteriorly, obliquely

narrowed in front, the raised margins of the impression shining and less closely

punctured. The elytra are rather flat, nearly horizontal; there is some whitish

pubescence in the basal region, congested into a white spot in the basal impression ;

there are some indefinite spots about the middle; at one-third from the apex a distinct

band of pale sandy pubescence, slightly descending at the suture, and just before the

apex there is a well-marked oblique spot between the suture and the costa; each

elytron has a well-marked costa, which curves very gradually towards the suture till

near the apex, and then turns again outwards; between the costa and the margin

there is a somewhat indistinct interrupted raised line. The prosternal chin-piece is

large, arched in front. The prosternum is strongly and moderately closely punctured,

with the margins smooth, but not raised. The metathoracic episterna are closely and

finely punctured in transverse lines. ‘The abdomen is finely and not very closely punc-

tured in the middle (smooth in parts), closely rugulose at the sides of the basal

segment; the lateral carina of the basal segment is interrupted by a notch behind the

middle; the terminal segment has a well-marked keel in the middle at the apex, with

an impression on each side of it; the extreme apex beyond the impressed line is

asperate.

68 (a). Agrilus oblitus. (Tab. IX. figg. 19, 19a.)

Cupreo-fuscus, vix nitidus; capite antice impresso croceo-pubescente, longitudinaliter canaliculato; thorace

basi paullo angustato, transversim ruguloso, punctato, disco vix bi-impresso, lateribus croceo-pubescen-

tibus ; elytris confertim asperulatis, ad suturam leviter impressis, ad apicem paullo angustatis, singulis

apice dente vix acuto instructis; pectore abdomineque croceo-marginatis; femoribus posterioribus paullo

incrassatis.

ron

Long. 37 lin.

Hab. Nicaracva, Chontales (Belt).

A somewhat dull, rough species, with conspicuous yellow margins to the thorax and

190 SUPPLEMENT.

upper border of the abdomen. The head has the face clothed with yellow pubescence,

leaving two bare spots above the clypeus. The thorax has a very slight impression on

the front of the disc, and another at the base; the posterior ridge is distinct but short,

close to the margin, slightly curved outwards anteriorly. ‘The elytra are a little

narrowed before the middle, wider again behind the middle, and then gradually

narrowed to the apex; the apex of each is furnished with a distinct, but not very

acute, tooth near the sutural angle. The prosternal chin-piece is arcuately rounded

in front. The prosternum is finely rugose and pubescent, a little widened behind the

coxe. The metathoracic episterna are finely rugose, the upper half clothed with

yellow pubescence. The abdomen has an oblique stripe of sandy pubescence on each

side of the basal segment, and there is a spot on each of the following segments slightly

removed from the sides; the lateral carina of the basal segment is uninterrupted,

slightly arcuate, almost rectilinear posteriorly (fig. 19 a).

68 (s). Agrilus strigifer.

Elongatus, parallelus, subtus eneus; capite antice wneo, subtiliter punctulato; thorace eneo-fusco, basi paullo

angustata, lateribus macula alba ornatis; elytris sordide cupreo-purpureis, rugosis, maculis sex et strigis

quatuor albis ornatis; femoribus sat incrassatis, tarsis longis.

Long. 3 lin.

Hab. Mexico, Tepetlapa in Guerrero 3000 feet (7. H. Smith).

This species somewhat resembles and is allied to A. femoralis (Tab. V. fig. 22), but

is shorter, and has the elytra less gradually narrowed to the apex. ‘The head is lightly

impressed in front, finely punctured, dark purple-brown on the vertex, brassy in front,

with a longitudinal impressed line, and a slight impression above the clypeus, in which

is some whitish pubescence; the face is not much narrowed at the Jower part; the

forehead viewed from above is slightly in advance of the eyes, lightly impressed in the

middle; the head in the only specimen before me is protruding from the thorax as in

the type of A. femoralis (this may be a natural character, but I did not consider it so in

A. femoralis, and it is not so represented in the figure). The antenne are moderately

long, but not so long as in A. femoralis. The thorax is not quite so long as in

A. femoralis, finely reticulate and punctured, very slightly narrowed in front, distinctly

narrowed at the base; the disc has a very slight impression in front, and is obliquely

impressed on each side behind the middle; the posterior ridge is obsolete. The

elytra are a little narrowed at their middle, of an obscure brownish-purple, closely

asperate, with the subcosta only slightly indicated ; each elytron has a small round dirty

white spot at the base, then a short streak which almost joins a second spot at the

middle (close to the suture), and a third spot at one-third from the apex, joining a

streak which is continued to the apex. The prosternal chin-piece is slightly emarginate

in the middle. The prosternum is rugose, with the margins raised, obliquely acuminate

at the apex. The metathoracic episterna are closely punctured, with a white spot

SERRICORNIA. 191

above; there is also a white spot on the mesothoracic epimera and another on the

posterior coxee. The abdomen has a spot of white scales under the femora, a transverse

spot in an impression on the basal segment, and a smaller one at the base of the

second segment; the lateral carina is strongly sinuate about the middle, with a white

spot in the sinuosity. The posterior femora are much thickened, the tarsi long, with

a very long basal joint.

72 (a). Agrilus latifrons.

Elongatus, postice gradatim angustatus, ceneus; capite lato, excavato, oculis prominentibus; thorace quadrato,

transversim ruguloso, medio bi-impresso fere sulcato, lateribus vix arcuatis fere rectis, ante basin perpaullo

sinuatis, antice macula alba ornatis, angulis posticis prominulis; elytris longis, confertim rugosis, ad

suturam impressis; corpore subtus albo-maculato ; tarsis posterioribus longissimis.

Long. 24-3} lin.

Hab. Mexico, Tepetlapa, Chilpancingo and Acapulco in Guerrero (H. H. Smith).

Var. Thorace medio sulcato, elytris obscure cupreis.

This species much resembles A. cephalotes (Tab. V. fig. 23), but is differently sculp-

tured, and has the basal joint of the posterior tarsi very long, in which respect it

resembles A. laticeps. The head is very wide; viewed from above it is widely angularly

impressed, in front it is widely but not deeply concave, obliquely punctate-striolate.

The thorax is transversely and obliquely punctate-striolate and rugulose ; the disc has

two subconfluent shallow impressions, the anterior one being the smaller (in the

specimen from Acapulco these are deeper and confluent); the posterior ridge is only

distinct when viewed laterally, it is curved outwards and downwards in front; the

lateral oblique impression is deep, and is filled with white pubescence anteriorly. The

elytra are long, rather flat, closely rugose, a little narrowed before the middle, gradually

narrowed at the apex, but not very acuminate; the shoulders are much raised; the

subcosta is slightly marked, rectilinear, but does not reach the apex. ‘The specimen

from Chilpancingo has the elytra a little darker than in the one from Tepetlapa, and in

the one from Acapulco they are obscure coppery. ‘The prosternal chin-piece is short,

gently emarginate. The prosternum is rather rough, finely margined at the sides, nearly

parallel, truncate posteriorly, with a narrow process at a lower level. ‘The sides of the

sterna are clothed with whitish scales. ‘The abdomen has an oblique broad stripe on

the basal segment, and a triangular spot on the second and third segments; the lateral

carina of the basal segment is distinctly sinuate behind the middle, with a white spot

in the sinuosity. The posterior tarsi are very long.

105 (a). Agrilus delicatulus.

Elongatus, parallelus, wneus, virescens; capite sat magno, oblique punctato-striolato, medio leviter sulcato,

fronte biconvexa; thorace convexo, oblique punctato-striolato, medio sulcato; elytris longis, asperatis,

pube grisea brevissime sparsis, dorso depresso.

Long. 17-27 lin.

192 SUPPLEMENT.

Hab. Mzxico, Chilpancingo in Guerrero 4600 feet (H. H. Smith).

The colour varies somewhat, being either brassy, golden-green, or tinted with

coppery: one example has the elytra pale steel-blue. The head is rather large, and

has the eyes prominent. The antenne are moderately long. The thorax appears a

little longer than broad, some examples have the sides nearly straight, in others they

are gently sinuate before the base; the surface is closely marked with oblique punctured

lines; the median channel is deep, and extends from the base to the apex; the anterior

margin is slightly advanced, and raised in the middle; there is no posterior ridge. The

elytra are a little narrowed before the middle, and then slightly wider again, then

gradually narrowed towards the apex, which is obtuse; the surface is evenly asperate,

without impressions, dotted with very short pale pubescence; there is no subcosta; the

suture is raised and is black, and the surface on each side of it is darker than the rest of

the surface. The prosternal chin-piece is emarginate. The prosternum is coarsely punc-

tured, acuminate posteriorly, beset with long testaceous hairs. The abdomen has the

lateral carina nearly rectilinear posteriorly. The basal joint of the posterior tarsi is long.

112 (a). Agrilus opacipennis.

Elongatus, subdepressus, niger, opacus; antennis latis, pubescentibus; capite antice impresso; thorace trans-

versim quadrato, punctato-striolato, ruguloso, disco cyanescente, convexo, utrinque oblique impresso,

lateribus late pube rufo-flava marginatis; elytris planatis, confertim subtiliter granulosis, brevissime

pubescentibus, subparallelis, ad apicem arcuatim attenuatis; abdomine segmento secundo macula pallide

flava ornato.

Long. 3-3% lin.

Hab. Mexico, Chilpancingo in Guerrero 4000 feet (H. H. Smith).

The head in two of the examples is obscure dark green, and in the other it is more

purple; closely punctate-striolate above, rugose at the lower part of the face, one

example having a pale yellow pubescent spot. ‘The antenne are very broad and hairy.

The thorax has the disc dark blackish-blue, tinted with coppery-purple towards the

sides; it is convex in front, obliquely impressed on each side behind; the sides are

clothed with orange-pink pubescence, changing into yellow at the anterior angles.

This species is close to A. auritus, Chevr., but is shorter, and has the front part of

the disc of the thorax raised; in this last respect it also differs from A. gemmatus, Say.

EX ASTHETUS. (To precede the genus Zaphrocerus, p. 127.)

Antennal sockets small, not very approximate. The antenne a little longer than the head and thorax together,

hairy ; the first and second joints moderately large, the following ones slender, elongate (Tab. IX. fig. 15a).

Thorax convex, transversely impressed at the base, finely margined at the sides, the anterior angles

deflexed and not visible from above. Scutellum elongate, arcuately acuminate (fig. 150). LElytra as

broad as the base of the thorax, subparallel, arcuately narrowed at the apex, without cost. Prosternum

without chin-piece; the intercoxal process subquadrate, obtusely rounded at the apex, almost truncate,

and met posteriorly by a slight projection of the metasternum. Metathoracic episterna moderately wide,

subparallel, Posterior coxe of nearly equal width throughout (fig. 15c). Abdomen with the first and

EX ZSTHETUS.—THROSCIDA. 1938

second segments united into one; the intercoxal process acuminate. Legs rather slender; the tibie

straight; the tarsi moderately long, the second and third joints with a very small lamina, which is

scarcely distinguishable when dry, the fourth joint with a rather large delicate lamina; the claws dilated

at their basal half (figg. 15d, e).

I think this very aberrant Buprestid may be placed next to Mastogenius. Its general

appearance is suggestive of Haplocnemus in the Dasytide.

1. Exesthetus dasytoides. (Tab. IX. figg. 15, 15 a-e.)

Elongatus, paullo convexus, nitidus, subtus fere niger, supra nigrescenti-sneus; capite leviter convexo, sat

crebre subtiliter punctato; thorace antice angustato, convexo, sat crebre evidenter punctato, lateribus sat

rotundatis ; elytris sat crebre fortiter punctatis.

Long. 2 lin.

Hab. Mexico, Jalapa (Hoge).

The head has an impression in the middle of the lower part of the face. The thorax

is impressed at the base, convex on the disc; the punctures are very distinct, rather

close together. The elytra have the punctures rather strong and moderately close

together. |

Fam. THROSCIDA*.

This family is composed of a small number of genera-and species, not very closely

related among themselves, occupying a position in the coleopterous series intermediate

between the Buprestide and Eucnemide, and no definition has yet been given which

will, with certainty, separate the Throscide, as at present constituted, from those

between which it is placed. As the family is generally admitted, and as there is accord

as to its constituent genera, these will be discussed in their relation to each other.

The genera divide into three series :—

Antenne strongly serrate or subpectinate from the

fourth to the tenth joints . . . . . . . ~ Lissomus, Hyrocuarss, Drapzrss.

Antenne terminated by a loose three-jointed club . TuHRoscus, AULONoTHROsCUS.

Antenne fusiform. . . . . . . +. . + . . Pacropus.

Before entering further on this subject, it may be well to state that Lissomus has

been placed at the head of the series as the more nearly related to the Buprestide as

Throscus and Aulonothroscus are evidently to the Eucnemide,

The details of these genera have been given at such length that but little is required

at present beyond an examination of the metasternum. |

In Lissomus there will be observed beginning at the inner side of the middle coxal

cavity a finely elevated line which curves slightly backward and outward, and gradually

disappears. In L. flavipennis this line makes almost a semicircular curve.

Hypochetes has a short postcoxal line as in Lissomus. From an examination of a

* By G. H. Hory.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1890. 2C

194 SERRICORNIA.

specimen kindly loaned me by M. Ed. Fleutiaux there does not seem to be any reason

for separating the species from Lissomus.

This line in Drapetes begins at the same place, curves slightly outward, then back-

ward towards the posterior angle of the metasternum, and gradually disappears.

In Throscus, as here restricted, there is a slight depression beginning at the middle

cox, curving a little towards the middle of the side of the metasternum, in some

species limited behind by a slightly elevated line.

Aulonothroscus has a sharply defined and rather deep groove for the reception of the

middle tarsi, which follows the direction of the elevated line in Drapetes.

Pactopus has, in addition to the metasternal sulcus, a groove for the posterior tarsi

impressed on the first three ventral segments.

These points serve as an illustration of the often observed fact, that what appears as

a line of ornament in one genus, may be the intimation of a well-defined structure in

an allied genus.

The distribution of the Throscide presents but little of interest. Lissomus, with

but two exceptions, is restricted to Central and Tropical South America. Drapetes

with more numerous species in the central and tropical regions, has only four

in Boreal America, and but four outside of the American continent. Of Throscus

it is not so easy to speak. Europe and Boreal America have about seven each,

Central America two. Aulonothroscus has six in Boreal and two in Central

America, and several in Brazil. From the fact that it has been necessary to divide

Throscus among the species known to de Bonvouloir, it is possible that the new genus

may have representatives in the Old-World fauna.

LISSOMUS.

- Lissomus, Dalman, Ephem. Ent. p. 13 (1824) ; de Bonvouloir, Mon. des Throscides, p. 97.

Lissodes, Latreille, Fam. Nat. p. 248 (pars).

The species of this genus are the largest of the family, and seem by their entire

organization to approach more nearly the preceding family, Buprestide, as a whole,

than any of the genera which follow. Nearly all the species are more or less gibbous

towards the base of the elytra, with a resultant form which distinguishes them at a

glance, apart from size, from Drapetes.

With the exception of one species from the Gaboon, all at present described are

from the Central-American region and Tropical South America.

1. Lissomus gagatinus.

Lissomus gagatinus, de Bony. Mon. p. 110°.

Hab. Nicaracua (Sallé), Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui

(Champion).—Cotomsia, Cartagena !.

LISSOMUS. 195

L. gagatinus is the largest black species in our fauna. Specimens were labelled

L. punctulatus is the Sallé collection.

2. Lissomus impressifrons.

Lissomus impressifrons, de Bonv. Mon. p. 115°.

Hab. Mexico 1, Cordova, Playa Vicente (Sal/é); Guatemaua, Sabo and San Juan in

Vera Paz (Champion).

3. Lissomus punctulatus.

Lissomus punctulatus, Dalm. Ephem. Ent. p. 14*; de Bonv. Mon. p. 112”.

Lissomus cribratus, Eschsch. in Thon’s Ent. Archiv, i. 1, p. 31°.

Lissomus Lacordairei, Gerst. Linn. Ent. 1860, p. 143°.

Hab. Guatemata, Yzabal (Sallé), San Isidro (Champion) ; Nicaracua, Chontales

(Belt); Costa Rica, Volcan de Irazu (Rogers); Panama, Volcan de Chiriqui (Cham-

pton).—CoLomBia?; Brazin} 2 4,

4. Lissomus foveolatus.

Lissomus foveolatus, Dalm. Ephem. Ent. p. 14+; de Bonv. Mon. p. 117, t. 4. fig. 2°.

Lissomus ebeninus, Blanch. Voy. d’Orb., Col. p. 145°.

Lissomus punctulatus, Gerst. Linn. Ent. 1860, p. 146°.

Hab. Mextco2; Guatemata, El Tumbador, El Reposo, Las Mercedes, San Isidro,

Zapote, San Juan in Vera Paz, Teleman (Champion) ; Nicaragua, Chontales (Belt,

Janson); Panama, Bugaba, Volcan de Chiriqui (Champion).—Boutvia? 4; Brazit } 2.

L. foveolatus and L. punctulatus have apparently caused much trouble in their

identification, and this is only possible after an examination of a good series, more

by an exercise of judgment than by any well-defined differences.

In the present species the antenne and tarsi are conspicuously pale, in L. punctulatus

they are rather ferruginous or pale brown; in L. foveolatus the specimens are never

three times as long as wide, while in L. punctulatus the length is in that proportion.

As usual in black species there is a tendency in the elytra to become castaneous,

inclining more or less to red. When this occurs in L. foveolatus the colour is limited

to a broad band including the suture, leaving the sides of the elytra black.

5. Lissomus ustulatus.

Lissomus ustulatus, de Bonv. Ann. Soc. Ent. Fr. 1860, p. 362, t. 8. fig. 8°.

Hab. GuateMaLa, Senahu, San Juan, Teleman, and Panima, all in Vera Paz

(Champion); Nicaragua, Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui,

David (Champion).—Co.omBia!. |

This species has often the greater part of the elytra red, the sides, base, and apex

202

196 SERRICORNIA.

black; but the extent of the red colour is variable, and may disappear entirely, so that

the elytra become entirely black. The abdomen is, however, always red, and by this

the species may be known from L. punctulatus, small specimens of which it resembles.

6. Lissomus trapezoideus. (Tab. X. fig. 7.)

Oblong, the elytra distinctly gibbous, piceous-black, shining; antenne black: head very sparsely punctate,

impressed between the eyes; thorax more than one-third wider at the base than long, trapezoidal, gradually

narrowed at the apex, sides more or less sinuous, apex moderately deeply emarginate, slightly sinuate,

front angles moderately prolonged, disc sparsely punctate; elytra nearly parallel in their basal half, thence

narrowed to the apex, the surface quite regularly striate-punctate, the punctures rather finer than those

at the base of the thorax, the submarginal groove deep, but interrupted near the base; body beneath

shining black, the abdomen rather finely, not closely, punctate, sparsely pubescent; legs and tarsi

piceous.

Length 7-11 millim.

Hab. Guaremata, Capetillo (Champion).

Similar to LZ. punctulatus in form, but differs from all the species at present known

by the thorax being narrowed at the front by the gradual convergence of the sides

without being at all arcuate near the apex. The very black antenne and piceous tarsi

will assist in the separation of this from any of the black species. Fifteen examples

seen.

7. Lissomus pilarius. (Tab. X. fig. 6.)

Oblong, moderately elongate, piceous-black, shining, the thorax orange-red with black apical border; antennz

piceous: head black, coarsely, moderately closely punctate, the front slightly flattened; thorax more

than one half wider at the base than long, sides straight and obliquely divergent posteriorly, slightly

arcuate in front, anterior angles feebly auriculate, surface finely and rather sparsely punctate, the punc-

tures coarser near the apex ; elytra parallel near the base, gradually narrowed from the middle, but rather

obtuse at the apex, disc not gibbous, the punctures moderate in size, not close, rather irregularly placed

at the middle, substriate at the sides and apex, each surrounded by a fine line; thorax beneath black at

the middle, red at the sides; body beneath shining black, the abdomen more coarsely and closely punctate

than the elytra; legs piceous-black, tarsi brownish.

Length 8-11 millim.

Hab. Mexico, Cerro de Plumas (Hége), Cuernavaca (H. H. Smith); Nicaraeva,

Chontales (Belt).

Easily known by its colour and form, the latter being rather more elongate and less

convex than usual in the genus. The submarginal groove of the elytra is entire;

the prosternum is without lateral marginal line and gradually narrowed at the apex.

Var. rufo-testaceus.

Pale rufo-testaceous, elytra somewhat darker, head and underside of body piceous-black.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

This seems to bear the same relation to the normal form that the pale varieties do

LISSOMUS. 197

to the typical L. bicolor. The four specimens seen are somewhat more slender, but do

not show any structural differences.

8. Lissomus bicolor.

Lissomus bicolor, Chevy. Col. Mex. cent. ii. fase. 8, no. 194°; de Bonv. Mon. p. 119”.

Hab. Mexico !?, Toxpam, Cordova (Sallé), Cerro de Plumas (Hége); Guatema.a, El

Reposo, San Isidro, Zapote (Champion), Yzabal (Sal/é).

Variable in colour above. The typical form has black elytra, the thorax red, with a

broad median piceous band, the head and body beneath rufo-ferruginous. Specimens

seem to be more abundant of an entirely rufo-castaneous colour. Examples rarely

occur like the typical form and with the thorax entirely red.

Var. rufo-castaneus.

Lissomus bicolor, var. rufo-castaneus, Sallé, in litt.

Hab. Mexico, Toxpam, Cordova, Playa Vicente, Santecomapan (Sallé), Cerro de

Plumas (fHége), Teapa (H. H. Smith); British Honpuras, Belize, R. Sarstoon

(Blancaneauz); GuateMaLa, Yzabal (Sallé), Cubilguitz, Panzos, Teleman, Chacoj,

San Juan, Purula, and Sabo in Vera Paz, El Tumbador, Cerro Zunil, El Reposo, San

Isidro, Zapote (Champion), Coban (Conradt).

9. Lissomus episcopalis.

Lissomus episcopalis, Gerst. Linn. Ent. 1860, p. 150°.

Hab. Costa Rica}.

This species resembles some of the forms of L. bicolor; but the head is black, the

meso- and metathorax are piceous-brown, and the abdomen is more reddish-brown.

No specimens have been.seen by me.

10. Lissomus inopinatus.

Oblong-oval, moderately robust, piceous-black, shining; thorax red, with a broad median piceous band ;

antenne black, second and third joints brown: head moderately coarsely, not closely punctate, impressed

in front; thorax much wider than long, sides gradually narrowed at the front, feebly arcuate and some-

what sinuous, apex not deeply emarginate, surface relatively finely and sparsely punctate; scutellum

smooth ; elytra scarcely gibbous, parallel at the sides, arcuately and rather obtusely narrowed at the

apical third only, surface very finely and distantly striate-punctate, submarginal line entire; body beneath

entirely black, except the sides of the prothorax, which are red; metasternum and abdomen moderately

coarsely but not closely punctate; legs piceous-brown, tarsi paler.

Length 5°5-8 millim.

-_ Hab. Nicaracua, Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui, David

(Champion).

| Like ZL. bicolor, this species varies from the normal colour to entirely rufo-castaneous.

It is, however, always shining black beneath, and has the head black. Superficially,

198 SERRICORNIA.

the species resembles LZ. bicolor, but the colour of the head and underside readily

separates it. In form it is also less gibbous, and at the apex more obtuse. The

preceding species, Z. episcopalis, is also related, but this too differs in colour.

The males have the thorax more narrowed in front, and the sides nearly straight.

11. Lissomus discedens.

Lissomus discedens, de Bonv. Mon. p. 126°.

Hab. Panama, Bugaba, David, San Lorenzo, Tolé (Champion).—CoLomBia'.

This species is readily known by the parallel prosternum, which has on each side

between the coxe a distinctly impressed marginal line extending nearly round the

apex. The thorax is sparsely clothed with silvery-white hairs at the sides, similar

hairs extending on the sides of the elytra to the apex.

12. Lissomus flavipennis. |

Lissomus flavipennis, Guérin, Rev. Zool. 1844, p. 257*; de Bonv. Mon. p. 121°; Gerst. Linn.

Ent. 1860, p. 151°.

Hab. Mrxitco!?3, Mirador, Juquila (Sallé), Jalapa (Hoge, M. Trujillo), Cerro de

Plumas (Hége); Guatema.a, Sinanja, Purula, Cerro Zunil (Champion).

In addition to its size and colour, which make this a conspicuous species, another

character is present which seems to have escaped notice. On the metasternum there

will be observed an elevated line beginning behind the middle coxe, curving backward,

then outward, and joining the suture at the side of the metasternum. All the other

species have but a rudiment of this line.

DRAPETES.

Drapetes, Redtenbacher, Fauna Austriaca, ed. 1, p. 290 (1848) ; de Bonvouloir, Mon. des Throscides,

p. 35.

Lissodes, Latreille, Fam. Nat. p. 248 (pars).

The species of this genus are of rather small size, usually bicoloured, or with the

elytra maculate or banded. Fortunately the literature is but little scattered, and is

either monographic or supplementary thereto, so that the identification of the species

is by no means difficult, although some of the characters used in their separation have

questionable value.

In an examination of a large series of several species the form varies notably from

oblong-oval to oblong, as will be observed in JD. seliatus. The basal depression can

hardly be relied on without accessory characters, nor has the sutural stria any value,

as in several species, notably D. brunneus, this stria may be either distinct or entirely

wanting.

DRAPETES.

199

The carina of the hind angles of the thorax will prove useful to group the species.

As a general rule, the elongate and maculate species have a sharply defined carina.

The number of new Drapetes. from: the Guatemala and Panama regions is relatively

very large, and some of them cannot be made to associate with the species in de Bon-

vouloir’s table;

characters will assist in their identification :—

10. wee

~ Elytra with a yellowish-white selliform space covering the

Ail.

12.

13.

. Oblong-oval ;

Sides of the elytra without supplementary marginal carina .

Sides of the elytra with supplementary marginal carina

. Prosternum bisulcate; entirely black .

Prosternum quadrisulcate .

. Body uniform in colour

Elytra more or less marked with red or - yellow .

. Entirely black .

Rufo-testaceous or castaneous

. Elytra with a transverse red band, more or less median .

alis* ; 6. sellatus ;

Elytra merely tipped with black .

Elytra entirely rufo-castaneous

. Body above bicoloured or with ornate elytra .

Body above entirely black .

. Thorax entirely black

Thorax not entirely black .

. Elytra transversely banded; no distinct carina at the hind

angles of the thorax Loe .

Elytra maculate or with a broad vitta or a . whitish selliform

space, or red at the’ apex; hind angles of the thorax

carinate a

the anterior edge of the elytral band parallel with

the base of the abdomen .

Elongate.

Elytral band behind the middle, its anterior edge straight

Elytral band in front of the middle, its anterior edge on

each side oblique and arcuate.

Elytra with one or two oval spots on each

greater part of the area Loe ee

Elytra with a broad vitta on each, broadest i in front

Elytra red at apical fifth ; quite small species |

One spot on each elytron near the apex

Two spots on each elytron.

Anterior spot at the humeral angle .

Anterior spot posterior to the humerus pete ls

Basal depression of the thorax distinct and smoother .

Basal depression indistinct, punctate

the following brief tabular arrangement of their more striking

1. aterrimus.

2. nigricans.

3. brunneus.

4. semirufus*; 5. later-

7. balteatus; 8. dffinis *.

sellatus, var. apicalis.

sellatus ,var.castaneipennis.

10.

9. grandis.

10. cingulatus.

ll. semicinctus.

ll.

12. plagiatus.

13. teniolatus.

23. hemorrhoidalis.

14. bipustulatus.

12.

15. quadrisignatus.

13.

16. guadrimaculatus.

17. quadrinotatus.

* These species are unknown to me and cannot satisfactorily be tabulated.

200 SERRICORNIA.

14, Thorax entirely red; headred . . . . . . 18. ruficollis; 19. sanguinicollis.

Thorax red, with a small piceous spot at the middle of the

apical and basal margins; head black . . . . . « «. 20. migriceps.

Thorax largely piceous at the middle . . . . . oe 15.

15. Sparsely punctate, shining; carina of the hind angles short ;

prosternal carine unequal . . . . 2 oe ee ew «622. marginicollis.

Rather densely punctate; carina of the hind angles long; pro-

sternal carine equal . . . . . ee ee an 21. punctulatus.

16. Thorax unusually coarsely punctate ; form elongate ; elytra with

a band of cinereous pubescence behind the middle; legs

black . 2. 2... eee, woe ee . . 26. niger.

Thorax not unusually coarsely punctate ; form at most oblong ; ;

pubescence very sparse; legsred . . . . 1 ee 17.

17. Form rather oval ; antenne pale rufo-testaceous . . . . . 24. ovalis.

Form oblong; antenne brown, except at the base. . . . . 25. pusillus.

1. Drapetes aterrimus.

Oblong, moderately elongate, black, shining: head not impressed, sparsely punctate ; thorax wider than long,

narrowed at the front, sides posteriorly straight, anteriorly arcuate, disc sparsely punctate, the posterior

faint impression limited in front by the usual reversed W-line, the outer branches of which are moderately

oblique, the inner branches as well open as in the letter V ; elytra very sparsely and rather finely

punctate without serial arrangement, no sutural stria, outer side without supplementary border; pro-

sternum sparsely punctate in front, smooth posteriorly, and with a single ridge on each side, propectus

coarsely, sparsely punctate; metasternum smooth, with few punctures at the front angles; abdomen

smooth at the middle, sparsely punctate at the sides; legs black, tarsi piceous.

Length 5-6 miliim.

Hab. Nicaracua, Chontales (Belt).

Resembles D. nigricans superficially, but is less punctate above, and with but one

carina on each side of the prosternum, by means of which it may be distinguished

from any species in the Central-American fauna.

2. Drapetes nigricans.

Drapetes nigricans, de Bony. Mon. p. 54*.

Hab. Panama, Volcan de Chiriqui (Champion).—Co.omBial}.

One of the few species entirely black. A little variable in the distinctness of the

transverse line which limits the posterior depression.

3. Drapetes brunneus.

Drapetes brunneus, de Bonv. Mon. p. 58, t. 2. fig. 4°.

Hab. Mexico, Toxpam, Cordova (Sallé); GuatemMaLa, San Juan, Chacoj, and Cubil-

guitz in Vera Paz, Rio Naranjo (Champion); Panama, Bugaba, Volcan de Chiriqui,

David (Champion).

DRAPETES. 201

Colour entirely ferruginous or pale castaneous. It is not improbable that this is

merely a colour variation of D. nigricans.

4. Drapetes semirufus.

Drapetes semirufus, de Bony. Mon. p. 56’.

Hab. Mexico}.

Evidently closely related to D. balteatus, but with the front angles of the thorax red.

No specimens have been seen by me.

5. Drapetes lateralis.

Drapetes lateralis, de Bony. Mon. p. 581.

Hab. Mexico}.

Closely related to D. balteatus, some of the varieties of which it resembles super-

ficially. ‘The only difference seems to be in the black inflexed sides of the elytra.

No specimens have been seen by me.

6. Drapetes sellatus.

Drapetes seliatus, de Bonv. Mon. p. 59, t. 2. fig. 5°.

Hab. Mexico, Cordova (Sallé), Cerro de Plumas (Hége); Guatemata, San Gerénimo,

San Juan, and Chiacam in Vera Paz (Champion); Costa Rica, Volcan de Irazu (Rogers) ;

Panama, Bugaba, Volcan de Chiriqui (Champion).—Cotomsia!; Braz}.

The only constant difference between this species and D. balteatus is in the more

oval form of the latter. Typical D. se/latus have the basal two-thirds of the elytra red,

while in D. dalteatus there is a basal black space; but examples of the latter occur

with colours similar to those of D. sel/atus, while specimens of this are frequent with

a post-scutellar black triangular mark.

Var. apicalis.

Entirely red above and beneath, except the head and the tip of the elytra which are piceous.

Hab. Panama, Volcan de Chiriqui, Caldera (Champion).

Var. castaneipennis.

Colour black, elytra entirely red, somewhat castaneous, without apical spot.

Hab. Guatemata, San Juan in Vera Paz, Zapote (Champion).

7. Drapetes balteatus.

Drapetes balteatus, de Bonv. Mon. p. 61’.

Hab. Mexico}, Vera Cruz, Toxpam, Cordova (Sallé), Jalapa, Cerro de Plumas (Hége) ;

British Honpuras, Belize (Blancaneaur); GuateMALa, San Juan, Chacoj, Cahabon,

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1890. 2D

202 . | SERRICORNIA.

Senahu, and San Gerénimo in Vera Paz, Zapote (Champion); Nicaragua, Chontales

(Belt).

The differences between this and the preceding species have been referred to. The

colour varies somewhat above and beneath, as does also the distinctness of the thoracic

punctuation posterior to the transverse line.

8. Drapetes affinis.

Drapetes affinis, de Bony. Mon. p. 66°.

| Hab. Mexico }.

Evidently very close to D. balteatus, but has not been identified by me.

9. Drapetes grandis.

Drapetes grandis, de Bonv. Mon. p. 69, t. 8. fig. 1°.

Hab. Mexico !, Toxpam, Cordova (Sal/é).

The largest species in the Central-American fauna. The lateral supplementary line

of the elytra is rather feebly developed.

10. Drapetes cingulatus. (Tab. X. fig. 4.)

Oblong elongate, black, shining; elytra with a broad red parallel-sided band, the anterior edge of this being

opposite the base of the abdomen and wider than the length of three ventral segments; abdomen red,

apical segments black; antenne black, the underside of the first joint red: head sparsely, finely punctate ;

thorax distinctly wider at the base than long, sides feebly arcuately narrowing to the front, disc sparsely

punctate, more coarsely at the hind angles, basal depression distinct but not limited in front, its area

smooth; elytra very finely and distantly substriate-punctate, the supplementary marginal line very

distinct ; abdomen sparsely punctate; legs piceous, tarsi paler.

Length 4°5 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Similar in form to D. semicinctus, but with the red band of the elytra post-median

and entirely encircling the body, that on the abdomen wider. ‘Two specimens.

11. Drapetes semicinctus.

Oblong, moderately elongate, black, shining ; elytra with a yellowish band in front of the middle, this being

narrower at the suture, and not interrupted, and not extending on the epipleure; antenne black, first

joint red: head sparsely punctate; thorax nearly as long as wide at the base, sides feebly arcuate, narrowed

at the front, the entire surface relatively coarsely punctate, the posterior depression scarcely evident ;

elytra very much more finely punctate than the thorax, the punctuation sparse and irregular, the marginal

supplementary stria well defined; body beneath entirely black, shining, abdomen punctate and sparsely

pubescent.

Length 4°5 millim.

Hab. Mexico, Cerro de Plumas (Hége).

This species has the form of D. bipustulatus, with a style of band resembling

DRAPETES. 203

that of D. balteatus. It is most closely related to the latter; but the band does not

extend on the epipleura, the thoracic impression is very indistinct, the form is more

elongate, and the supplementary line is here present. One specimen.

12. Drapetes plagiatus.

Lissomus plagiatus, Boh. Kongl. Svenska Freg. Eugen. Resa, Ins. p. 66°.

Drapetes plagiatus, Gerst. Linn. Ent. p. 174°.

Drapetes preustus, de Bonv. Mon. p. 79, t. 8. fig. 4°.

Hab. British Honpuras, Belize (Blancaneaux); Guatemata, Yzabal (Sallé), San Juan

in Vera Paz, El Tumbador (Champion); Panama, Bugaba, Volcan de Chiriqui (Cham-

pion).—Cotomsta2?; Ortnoco2; Braziu?, Island of Santa Catarina®. [California,

San Francisco 4, erroneous locality. |

Easily known by the elongate form and the yellowish-white space which covers the

larger part of the elytral area, narrowly divided by the suture. ‘The elytra are seriately

punctate, each puncture bearing a short whitish hair.

13. Drapetes teniolatus. (Tab. X. fig. 5.)

Oblong, moderately elongate, similar in form to D. plagiatus, black, shining, legs red, each elytron with a very

elongate-oval yellowish-white stripe beginning a little behind the base and extending to four-fifths of its

length ; antenne black, the two basal joints pale red: head sparsely punctate; thorax nearly as long as

wide at the base, sides feebly arcuately narrowing to the front, moderately coarsely punctate at the base,

more finely in front, the basal depression scarcely evident, the punctures in the area somewhat strigose

longitudinally ; elytra extremely finely and sparsely punctate over the larger part, but more closely and

distinctly along the suture and at the apex, the supplementary marginal line distinct ; abdomen nearly

smooth at the middle, last segment and sides punctate.

Length 3-3°5 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

This insect might be suspected to be a variety of D. plagiatus with the sellate space

broadly divided at the middle; but the broad vitta is of regular form, not sinuate on its

outer side, and barely reaches the submarginal line in front. ‘There is no pubescence

above. Four specimens.

14. Drapetes bipustulatus.

Drapetes bipustulatus, de Bonv. Mon. p. 75”.

Hab. British Honpuras, Belize (Blancaneaur) ; Guatemata, San Isidro (Champion) ;

Nicaragua (Sallé), Chontales (Janson) ; Panama, Bugaba (Champion).—CoLomBIa’.

An elongate species, entirely black, except a small, oval, yellow spot on each elytron

behind the middle.

2D2

204 SERRICORNIA.

15. Drapetes quadrisignatus.

Drapetes quadrisignatus, de Bonv. Ann. Soc. Ent. Fr. 1861, p. 354, t. 8. fig. 6°.

Hab. Guatemaa, Chacoj in Vera Paz (Champion).—Amazons, Ega (Bates 1).

Easily known by the elytra having each two yellow spots, the larger at the humerus

extending on the epipleure.

16. Drapetes quadrimaculatus.

Very similar in form and coloration to D. quadripustulatus: antenne entirely black; thorax nearly as long as

wide, sides feebly arcuately narrowing to the apex, disc coarsely sparsely punctate, with a smoother poste-

rior depression limited in front by the usual W-line, the outer branches of which are nearly transverse,

the V small; elytra sparsely, indistinctly, and irregularly punctate, with two yellow-red spots on. each—

the anterior larger, posthumeral, and not extending on the epipleure, the posterior smaller and near the

apex ; body beneath and legs black; abdomen sparsely punctate, with few silvery-white hairs.

Length 3-4°5 millim.

Hab. Mexico, Rincon in Guerrero, Atoyac (H. H. Smith), Cerro de Plumas (Hége) ;

British Honpuras, Belize (Blancaneaux); GuaTEMALA, Zapote (Champion); PANaMa,

Bugaba (Champion).

While closely resembling the N.-American D. quadripustulatus, de Bonv., it differs

from it in the distinctly limited depressed space of the thorax, the entirely black

epipleure, and the black antenne.

17. Drapetes quadrinotatus.

Oblong, rather elongate, black, shining ; each elytron with two irregularly oval spots, the anterior the larger

and not extending beneath the supplementary marginal line; antenne piceous, basal joint red: head

sparsely punctate ; thorax nearly as long as wide, sides feebly arcuate to the apex, dise coarsely sparsely

punctate over the entire surface, without depressed basal space and without the W-line; elytra sparsely,

finely, and irregularly punctate; body beneath shining black; abdomen sparsely punctate, with few

silvery-white hairs; legs somewhat piceous.

Length 3—3°5 millim.

Hab. British Honpuras, Belize (Blancaneauz).

With a superficial colour-resemblance to the other four-spotted species, this has the

form quite as elongate as in D. plagiatus. Having entirely black epipleura, it is more

nearly related to D. guadrimaculatus, from which it differs in form and by the absence

of any distinctly limited depressed space on the thorax.

18. Drapetes ruficollis.

Drapetes ruficollis, de Bonv. Mon. p. 81".

Head and thorax above and beneath, and the basal joint of the antenne, reddish-yellow ; the remainder of the

body black.

Hab. MeExico!, Cordova (Sallé), Cerro de Plumas (Hége); Guaremaua, Cerro Zunil,

San Gerénimo (Champion); Panama, Volcan de Chiriqui (Champion).

DRAPETES. 205

19. Drapetes sanguinicollis.

Drapetes sanguinicollis, de Bony. Ann. Soc. Ent. Fr. 1860, p. 361, t. 8. fig. 7°.

Hab. Mexico }.

Very close to D. rujicollis, and from the description differs only in its somewhat more

elongate and depressed form.

20. Drapetes nigriceps.

Drapetes nigriceps, de Bony. Mon. p. 84°.

Hab. Mexico1, Cerro de Plumas (Hoge).

Very like D. ruficollis, but with a black head and a small piceous spot at the middle

of the apical and basal margins of the thorax. The elytra are more often blue-black.

21. Drapetes punctulatus. (Tab. X. fig. 3.)

Oblong, less convex than usual, piceous-black, feebly shining, cinereo-pubescent over the entire surface ; sides

of thorax above and beneath broadly yellow; antenna’ black: head piceous or partly ferruginous ante-

riorly, relatively coarsely and moderately closely punctate, interocular carina extending across the front,

the clypeus at the base extremely narrow; thorax but little wider at the base than long, sides feebly

arcuately narrowing to the apex, carina of the hind angles extending halfway to the apex and continued

by a smooth line very nearly to the apex, the depressed area well marked but not sharply limited in

front, the V-line quite distinct, surface rather closely and relatively coarsely punctate (except at the

depressed. area, where the punctures are very fine), reddish-yellow, a triangular piceous space at the apex

and a larger one at the base, these united rather broadly at their apices ; elytra arcuately narrowed nearly

from the base, the surface rather densely punctate, more finely than the thorax, but more coarsely at the

sides than at the middle, clothed with cinereous pubescence forming a broad common band from the base

nearly to the apex, the hairs directed transversely, lateral border and apex cinereo-pubescent, the narrow

space between the median band and sides with brownish pubescence, supplementary marginal line distinct :

prothorax beneath black, coarsely punctate and broadly yellow at the sides ; abdomen moderately coarsely

and closely punctate, with sparse cinereous pubescence ; legs piceous, tarsi testiaceous.

Length 3°5—4 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

This species is remarkable by the close punctuation of the entire surface as well as

by the well-marked pubescence. The extreme narrowness of the clypeus at the base is

also unusual. Three examples.

22. Drapetes marginicollis.

Oblong oval, piceous-black, shining, sparsely pubescent ; hairs of the elytra seriately placed; thorax beneath

entirely, above indefinitely, yellow at the sides, more widely in front; antenne flavo-testaceous: head

yellowish in front, piceous along the occiput, moderately coarsely, not closely punctate; thorax nearly |

one third wider at the base than long, sides gradually arcuate to the front, disc moderately punctate (not

closely), gradually more finely to base, the basal depression not at all distinct; elytra striately punctate,

the punctures not distant, submarginal stria distinct; body beneath piceous-black ; abdomen moderately

closely punctate; prosternum quadristriate, the outer strie short and very close to the inner ; legs flavo-

testaceous.

Length 2°5 millim,

206 SERRICORNIA.

Hab. Guaremaa, Mirandilla (Champion).

Not a conspicuous species, but readily known among the smaller ones by the sides of

the piceous thorax being indefinitely yellow, more widely in front, and by the unequal

strie of the prosternum.

23. Drapetes hemorrhoidalis. (Tab. X. fig. 2.)

Oblong-oval, piceous-black, shining ; apical fifth of the elytra red; antenne and legs pale rufo-testaceous ;

surface sparsely clothed with cinereous pubescence, that on the elytra nearly erect and in regular rows:

head sparsely punctate; thorax one third wider at the base than long, sides arcuately narrowed to the front,

surface moderately, not closely, punctate, its posterior depression faintly marked, smoother, limited in front

by a transverse row of punctures; elytra a little more finely punctate than the thorax, substriately at

the base, irregularly near the apex, submarginal supplementary stria well marked ; body beneath black,

sparsely pubescent ; abdomen more closely punctate than the upper surface.

Length 2—2°25 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

This species is the only one in which the elytra are simply tipped with red.

24. Drapetes ovalis.

Oval, slightly oblong, piceous-black, shining ; antennee and legs pale rufo-testaceous; last ventral segment

sometimes piceo-testaceous or brown: head rather coarsely, not closely, punctate ; thorax one half wider

at the base than long, sides arcuately narrowed to the front, disc rather coarsely and closely punctate, the

posterior depression broad, limited in front by a transverse row of punctures, behind which the surface is

almost smooth ; elytra finely, irregularly, not very sparsely punctate, the supplementary stria well marked ;

abdomen moderately closely and coarsely punctate at the sides and apex.

Length 2-3 millim.

Hab. Nicaracua (Sallé), Chontales (Janson); Panama, Bugaba, Volcan de Chiriqui

(Champion).

Easily known by its entirely black colour and conspicuously pale antenne and legs.

The prosternal sulci are closely approximated, so that the median portion is no wider

than one of the lateral carine.

25. Drapetes pusillus.

Oblong-oval, piceous-black, shining, sparsely clothed with cinereous pubescence without definite arrangement

on the elytra; antenne brown, the three basal joints yellowish-testaceous: head moderately closely punc-

tate ; thorax about one fourth wider at the base than long, sides feebly arcuately narrowed to the apex,

surface not closely punctate except at the hind angles, posterior depression indistinct, not limited in front,

smoother ; elytra a little more finely and sparsely punctate than the thorax, punctures without definite

arrangement, supplementary marginal stria well marked ; abdomen moderately closely punctate at the

sides and apex, sparsely pubescent ; legs yellowish-testaceous.

Length 2 millim.

Hab. Guatemana, San Juan, Cubilguitz, Chacoj, and La Tinta, all in Vera Paz

( Champion). 7

May be distinguished from D. ovalis by its more elongate form, pubescent surface,

DRAPETES.—THROSCUS. 207

small size, and darker antenne. The prosternal carine are of equal length, and extend

two-thirds the length of the prosternum.

26. Drapetes niger. (Tab. X. fig. 1.)

Drapetes niger, de Bonv. Mon. p. 78, t. 3. fig. 5°.

Hab. Mexico!, Teapa (H. H. Smith); British Honpuras, Belize (Blancaneauc) ;

GUATEMALA, Chacoj and Panzos in Vera Paz, El Tumbador, Zapote (Champion) ;

PanaMa, Bugaba, Taboga I. (Champion).

A moderately elongate, entirely black species, sparsely clothed with silvery-white

pubescence, which forms a denser transverse band across the elytra behind the middle,

widest at the suture and narrowed outwardly. The unique example described by

de Bonvouloir was evidently a badly preserved specimen.

THROSCUS.

Throscus, Latreille, Gen. Crust. et Ins. ii. p. 37 (1807) ; de Bonvouloir, Mon. des Throscides, p. 1

(pars).

Trizagus, Kugelann, Schneid. Mag. v. p. 535 (1794).

Trixacus, Redtenbacher, Fauna Austriaca, ed. 2, p. 402.

There does not yet seem to be accord regarding the name to be accepted for this

genus, and more than necessary seems to have been published in favour of the one or

the other.

It is proposed to restrict the genus to those species which have no abruptly defined

groove on the metasternum for the reception of the middle tarsi. As thus defined,

probably all the European species remain here, together with 7. alienus, T. chevrolatz,

T. parvulus, T. mendaz, T. sejunctus, T. sericeus, and T. debilis of the North-American

fauna and the two described below.

On examining the metasternum of Throscus as thus restricted there will be observed

a faint oblique depression directed towards the side, in some cases limited by a finely

elevated line for the reception of the middle tarsi in repose.

1. Throscus auctus.

Piceous, moderately shining, finely pubescent; legs rufous: eyes entire, not invaded by a canthus; head

distinctly punctate, without trace of carine; thorax not quite twice as wide at the base as long, sides

regularly arcuate to the apex, disc feebly convex, sparsely but distinctly punctate, more closely at the hind

angles, which have a fine carina close to the margin; elytra distinctly striate, striz finely, not closely,

punctate, a little more distinctly toward the apex, intervals flat, irregularly uniseriately punctate;

abdomen sparsely punctate, finely pubescent; prosternal striz entire; prosternum smooth.

Length 1-5 millim.

Hab. Panama, Tolé (Champion).

208 SERRICORNIA.

Closely allied to the North-American 7. alienus, but differs in the form of the

thorax and by the short carina of the hind angles. ‘There is also no deep subhumeral

depression of the marginal stria.

2». Throscus trivialis.

Reddish-brown, sparsely pubescent: eyes entire, not compressed nor invaded by the canthus; front convex,

sparsely indistinctly punctate, without trace of carina; thorax not twice as wide at the base as long,

sides regularly arcuately narrowed to the apex, disc feebly convex, sparsely, finely, and indistinctly punc-

tate, hind angles without trace of carina; elytra distinctly striate, strie finely, not closely punctate, a

little more coarsely at the apex, intervals flat, extremely finely biseriately punctate ; prosternal strie entire ;

abdomen sparsely punctate at the sides and apex ; body beneath paler than above.

Length 1:75 millim.

Hab. Panama, David (Champion).

Evidently related to the North-American 7. alienus, but this has the sides of the thorax

rather oblique than arcuately narrowed. ‘There is no carina in the hind angles in the

present species, while there is one very distinct but close to the margin in that

species.

AULONOTHROSCUS.

This name is suggested for a portion of those species which, until now, have been

associated with Throscus, and which differ in the presence of a deep, sharply defined

groove in the metasternum, beginning at the middle coxe and slightly curving outwardly,

terminating at the posterior angle of the metasternum. In all other respects the

characters are those of Throscus. The character and position of this groove are suffi-

ciently illustrated in a sketch published by me of Pactopus (Trans. Am. Ent. Soc. xii.

p. 205), which goes one step further by the presence of similar grooves on the

abdomen.

To Aulonothroscus, in addition to those given below, the following North-American

species must be referred, viz.: 7. validus, T. punctatus, T. invisus, T. constrictor,

T. convergens, and T. pugnax, together with several undescribed species from Brazil

recently examined in the collection of M. Ed. Fleutiaux.

1. Aulonothroscus schaumi.

Throscus schaumii, de Bonv. Ann. Soc. Ent. Fr..1860, p. 352, t. 8. fig. 1°.

Hab. Guareaaua, Coban (Conradt), Senahu and Capetillo (Champion). —Brazt.1,

In this species the eyes are triangularly emarginate in front. ‘The front has two

well-defined carine, which converge to the base of the clypeus and then diverge along

the outer edge. Opposite the eye a fine carina begins, and passes from the main carina

into the eye. This latter de Bonvouloir describes and figures as passing across the base

of the clypeus, but the appearance is purely deceptive. ‘There is sometimes present a

AULONOTHROSCUS. 209

short median carina on the front; but in one of the three specimens before me it is not

present.

The thorax has a fine but acute carina parallel with the lateral margin, not men-

tioned by de Bonvouloir, but shown in Migneaux’s excellent figure.

2. Aulonothroscus gradatus.

Piceous, clothed with yellowish-cinereous pubescence, some of which along the elytral intervals is longer and

more erect: eyes entire but invaded by the canthus of the front; head ferruginous, indistinctly punctate,

obtusely bicarinate, the carine slightly converging to the base of the clypeus, but not continued ; thorax

more than twice as wide as long, sides regularly arcuate to the front, disc rather flat, sparsely punctate at

the middle, more closely at the sides, hind angles finely carinate ; elytra very indistinctly striate, striz

finely and indistinctly punctate at the base, gradually more and more coarsely and deeply to the apex,

intervals flat, confusedly biseriately punctate at the base, becoming uniseriate behind the middle;

prosternal striz long ; abdomen sparsely punctate, pubescent ; legs brownish, tarsi testaceous.

Length 3 millim.

Hab. GUATEMALA, Quiche Mountains 7000 to 9000 feet (Champion).

This species has entire eyes, but the canthus is prolonged over the eye as it is in

A. schaumi. The thorax, when examined under a high power, is quite closely

punctulate between the punctures observed in the usual manner. A. gradatus is not

especially related to any of the species described, but resembles A. schaumi in form,

although less broad. The prolonged canthus and elytral punctuation will readily distin-

guish it among those with entire eyes and bicarinate front.

3. Aulonothroscus fraternus.

Piceous, clothed similarly to A. gradatus: eyes entire, the canthus of the front not prolonged over them; head

nearly smooth, obtusely bicarinate, the carine short; thorax not twice as wide at the base as long, sides

regularly arcuate to the apex, hind angles finely carinate, disc feebly convex, sparsely punctate over the

entire surface, the intervals between the punctures rather shining ; elytra not distinctly striate, the striz

indicated by fine distant punctures, which become quite coarse at the apical third, intervals flat, apparently

uniseriately irregularly punctate; prosternal strie entire; abdomen sparsely punctate and pubescent ; legs

reddish, tarsi paler.

Length 2 millim.

Hab. Guatemata, El Tumbador, Duefias, Guatemala city, Cubilguitz (Champion).

An inconspicuous species, differing from A. gradatus by the more sparsely punctate

and smoother thorax, and the somewhat different elytral sculpture, and by the canthus

not being prolonged over the eye.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1890. oF

210 SERRICORNIA.

Fam. EUCNEMIDZ *.

The question can hardly be considered definitely settled regarding the status of the

insects which constitute the series now under consideration. Opinions differ among

those who have specially studied the Eucnemide, and the weight seems about equally

balanced (1) in favour of retaining them as a separate family, or (2) considering them

part of the Elateride. Several years ago, in discussing the species of the North-

American fauna, the latter view was adopted by me, as there did not seem to be any

character or assemblage of characters of sufficient value to define a family of Coleoptera.

As the discussion of matters of this kind is hardly within the scope of a work of the

character of the present one, the family is assumed to be distinct.

The Eucnemidz are, for the most part, rare ; and but few collections contain a sufficient

number either of species or genera to enable a definite idea of the family to be

formed. The masterly monograph by de Bonvouloir marked an era and gives the basis

for any future studies. In Coleopterous literature but few works are comparable with

it in the evidence it gives of patient and accurate research. A successful or satisfactory

use of the work requires not only patient study but a correct understanding of what

might be called the “ personal equation” in the use of terms and choice of words to

convey ideas. ;

At the present time the family contains ninety genera and about 475 species. The

following pages add six genera and fifty-six species, making a total of ninety-six and

531. Of this total the Central-American fauna is now known to possess thirty-two

genera and 108 species. Thirteen genera and three species are represented in common

in Boreal and Central America, while twenty-one genera and as many species occur in

Central and Tropical South America, including Brazil. One genus, Trigonopleurus,

occurs also in Australia; but from the numerous errors of locality observed in the

Monograph, more especially in species referred to Boreal America, there may be reason

to doubt the accuracy of the above-mentioned statement. ‘The errors of habitat in

the ‘ Catalogus Coleopterorum ’ are still more numerous.

At the present time no satisfactory comparison can be made of the number and

distribution of species in the Central-American fauna and any other equal region. Our

knowledge of the Mexican species is due almost entirely to the collections made by

M. A. Sallé in a limited region, while the results obtained by Mr. G. C. Champion in

Guatemala and Panama show what can be expected from patient work elsewhere.

The material amassed by M. A. Sallé forms part of our collection, and includes the

typical specimens of nearly all the species described by de Bonvouloir from Mexico.

* By G. H. Horn.

EUCNEMID.

211

In order that the genera at present known in the Central American fauna may be

determined, the following table has been prepared. . As it represents but a third of

the known genera of the family it has been possible to avoid some of the more difficult-

to-realize characters used by de Bonvouloir.

rae |

10.

11.

. Posterior coxze deeply inserted in their cavities, without coxal

plates bo wae « or . aie ell ee a

Posterior cox with distinct plates, which 1 more or r less cover the

femora in repose. . . . eae

. Marginal carina of the neootan parallel with the prostezial

sutures.

Legs and tarsi stout and broad

Legs and tarsi slender . . GON ge

Marginal carina and prosternal sutures convergent in front .

. Abdomen with longitudinal grooves for the reception of the

posterior tarsi .

Abdomen not grooved . : biel gh cas ate

Prosternal sutures excavated to form the antennal cavities .

Prosternal sutures not excavated ; but there may be a juxta-

sutural sulcus

. Posterior coxal plates dilated snternally, or when parallel (Micro-

rhagus) the thorax has supplementary carine . . eae

Posterior coxal plates broad and nearly parallel; thoracic margin

simple; a marginal sulcus

. Propleurz with marginal antennal groove

Propleurz without marginal groove

. Metasternum with a distinct longitudinal groove beginning at ‘the

outer end of the middle coxal cavities .

Metasternum without an impressed line . an

Metasternum with a short oblique elevated line hesitating at the

anterior outer angle : ue es

Metasternum without oblique elevated line in front

. Marginal groove continued on the head without being narrowed by

the eyes eos

Marginal groove much acroed by the eyes ;

Antennal groove sharply limited on the inner side ; last ae

segment not prolonged in a point ; me jomcn ob

Antennal groove not sharply limited on the inner ide antennz

broadened and flat; last ventral segment prolonged in a point .

Marginal groove at least wider than half the propleural triangle.

Groove wider in front; fourth tarsal joimt excavate-

emarginate poles . pb ws enh ye

Groove much wider chisel Foesvil fanaa joint simple

Marginal groove narrower than half the propleural triangle

Cerophytum.

Melasis.

Lsorhipis.

Gastraulacus.

4s,

28.

2l.

16.

Pecilochrus.

Idiotarsus.

10.

13.

11.

Eurachis.

Phenobolus.

Deltometopus.

12:

2E2

212

12.

138.

14.

15.

16.

17.

18.

19.

20.

21.

22.

SERRICORNIA.

Propleural triangle as wide at the base as, or wider than, the outer

side . .

Propleural triangle it ‘the base ane notably shorter than ‘the

outer side.

Antenne with the third joint very small . .

Antenne with the third joint longer than the second snd

usually longer than the fourth . .

Antennal groove sharply limited internally by the margin of the

triangle of the propleure . . . . ... -

Antennal groove not sharply limited internally, sometimes also _

punctate ee

Antennal joints 4-10 similar and of neatly equal length . - 8

Antennal joints 4-7 very short, not longer than wide; outer joints

abruptly much longer .

First joint of the hind tarsus distinctly shorter than the following

joints together; antennal groove very broad; antennex ()

strongly pectinate . . . rae

First joint of the hind tarsus at least as long as 5 the following

joints together; antennal groove never very wide; antennee at

most serrate.

Prosternum normally convex in front of the coxe, the apex

not elevated; mouth-parts normal . coe

Prosternum. flat, slightly concave in front of the cox, the

apex abruptly elevated; mouth-parts much modified .

Margin of the prothorax with a single lateral ridge

Margin of the prothorax with at least two marginal carine ; pro-

pectus with a more or less defined juxta-sutural groove .

Mandibles with a broad rugose surface, the lower border more or

less prolonged backward . .

Mandibles with a narrow surface, the lower border not nroloneed

fourth tarsal joint simple . ee

Last ventral segment not prolonged in an acute point; antenne

flattened, joints 2, 3,4 equalin length . . .

Last ventral segment acutely prolonged

Fourth tarsal joint excavate-emarginate.

Metathoracic episterna parallel-sided .

Metathoracic episterna narrowed in front

Fourth tarsal jomt slender and simple. . . . . ‘

Prosternal sutures straight; last three joints of the nntenwie

abruptly longer or : gaa,

Prosternal sutures arcuate ; reiteiniael joints nearly equal

A distinct but not sharply limited marginal groove; last ventral

segment abruptly prolonged in an obtuse pomt . . .

Propectus with a well-defined and limited juxta-sutural groove

Propectus without groove, with merely a slight and badly limited

depression or smooth space

Thambus.

Diacerus.

Dromeolus.

14.

Plesiofornax.

15.

Dyscolotaxia.

Diphytazis.

Fornax.

Cladus.

17.

22.

18.

20.

Henecosoma.

19.

Nematodes.

Trigonopleurus.

Emathion.

Phlegon.

Anelastes.

Diapodius.

23.

24.

23.

24,

25.

26.

27.

28.

EUCNEMIDA.—MELASIS.

Antenne with joints 2 and 3 very short, together not as long as

the fourth . .

Antenne with joints 2 and 3 ‘together much longer ‘than the

fourth :

Last ventral segment obtuse a at the tip

Last ventral segment acutely prolonged at the tip . .

First joint of the hind tarsi as long as the following joints tagettion:

First joint of the hind tarsi notably shorter than the following

joints together ee

Outer carina of the propleural depression entire .

Outer carina of the propleural depression extending only halfway

to the base . . = 5 .

Outer carina of the propleural depression entirely absent

Metasternal episterna moderately wide, parallel-sided

Metasternal episterna narrow, narrowed in front

CEROPHYTUM.

Entomophthalmus.

Microrhagus.

25.

27.

Adelothyreus.

26.

Farsus. v

Arrhipis.

Adelorhagus.

Pterotarsus.

Thylacosternus.

Cerophytum, Latreille, Gen. Crust. et Ins. iv. p. 875 (1809) ; de Bonvouloir, Mon. des Eucnémides,

p. 78.

Chorea, Haldeman, Proc. Acad. Phil. iii. p. 150.

This genus at present contains but five species; two are from temperate North

America and one each from Europe, Mexico, and South America.

It is an aberrant

’ member of the family, exhibiting tendencies in the direction of the Dascyllide, although

possessing in a moderate degree the saltatorial power of the Elateride.

Cerophytum fuscicorne.

Cerophytum fuscicorne, de Bonv. Mon. p. 84, t. 4. fig. 3°.

Hab. Mextco!; Panama, Volcan de Chiriqui (Champion).—Cotomsia, Cartagena !.

One male specimen of the typical form, piceous-black, in our series.

have a structure similar to that of the males of the other species.

- Melasis, Olivier, Ent. ii. no. 30 (1790) ;

MELASIS.

The antenne

de Bonvouloir, Mon. des Eucnémides, p. 88.

This genus, with the following, constitutes a subdivision of the family in which the

prosternal sutures are parallel to each other and to the lateral margin of the thorax,

a character not commonly observed in the true serricorn series.

Melasis rufipalpis.

Melasis rufipalpis, Chevr. Col. Mex. cent. ii. fasc. 8, no. 193*; de Bonv. Mon. p. 94, t. 4. fig. 6°.

Hab. Mexico 2, Las Vigas!;

GuaTEMALA, Coban in Vera Paz (Conradt).

214 SERRICORNIA.

One female specimen in our series. The species, like its more northern congeners,

seems to be rare, as de Bonvouloir mentions two only.

ISORHIPIS.

Tharops, Castelnau, in Silberm. Rev. Ent. iii. p. 168 (1835) ; de Bonvouloir, Mon. des Eucnémides,

p. 95 (nomen prezeocc.).

Isorhipis, Lacordaire, Faun. Ent. d’env. Paris, i. p. 622.

Until the present time this genus has been represented only in Europe and temperate

North America; two species are now added, one of which is from near the southern

limit of our region, indicating the probable existence of others in more northern

localities.

1. Isorhipis vagans.

Piceous-black, opaque, sparsely clothed with short yellowish-grey pubescence ; antennz ferruginous-brown :

head densely punctate ; thorax slightly broader than long, very little narrowed towards the apex, sides

very feebly arcuate, surface closely coarsely punctate, median line impressed from the base to the middle,

a short transverse impression on each side ; elytra finely striate, strize indistinctly punctate, intervals flat,

closely granulate ; body beneath concolorous, less opaque, the pubescence longer and more golden; legs

entirely piceous.

Length 7 millim.

Hab. Guatemaa, Cerro Zunil 4000 feet (Champion).

This species is more nearly related in its form to J. nigriceps, the thorax being

wider than long and the scutellum moderately long. It is quite different from the

North-American forms.

One male.

2. Isorhipis holosericea. (Tab. X. fig. 8.)

Piceous-black, opaque, clothed sparsely with a grey silken pubescence, giving a variable lustre; antenne

piceous-black, the two basal joints rufo-testaceous: head very densely punctate ; thorax slightly wider

than long, sides parallel posteriorly, arcuate in front, disc moderately convex, the median impressed line

extending from the base to the apex, surface very densely punctate-granulate and opaque, the pubescence

directed in a varying manner; scutellum oblong, narrowed at the tip ; elytra striate, strie rather coarsely

punctured, intervals flat, closely punctate, granulate at the base, smoother near the apex, surface with

silken pubescence arranged in the usual longitudinal manner, except in a large oval space behind the

middle, on whichiit is directly transverse; beneath black, closely finely punctate and with silken

pubescence ; legs black, tarsi rufo-testaceous.

Length 5 millim.

Hab. Panama, Bugaba (Champion).

Evidently related most closely to J. obscuricornis, from which it differs (by descrip-

tion) in the colour of the antenne and legs, as well as in the arrangement of the

pubescence. ‘Two female specimens. .

GASTRAULACUS.—IDIOTARSUS. 215

GASTRAULACUS.

Gastraulacus, Guérin, Ann. Soc. Ent. Fr. 1843, p. 188; de Bonvouloir, Mon. des Eucnémides,

p. 112.

This genus is remarkable in that the middle and posterior tarsi are received in deep

grooves in the metasternum and abdomen respectively. But one species has hitherto

been known, to which another is now added.

1. Gastraulacus bisulcatus.

Galba bisulcatus (sic), Latr. Ann. Soc. Ent. Fr. 1834, p. 132°.

Gastraulacus bisulcatus, de Bonv. Mon. p. 113. t. 5. fig. 4”.

Gastraulacus atratus, Guérin, Ann. Soc. Ent. Fr. 1848, p. 188, t. 6. figs. 50, 51°. — me err

Hab. Mexico 23; NICARAGUA (Sallé), Chontales (Belt).—Cotompia®; Brazin}2,

2. Gastraulacus cavifrons. (Tab. X. fig. 9.)

Cylindrical, slightly narrowed posteriorly, robust, brownish-piceous, subopaque; antenne ferruginous, basal

joint piceous : head coarsely closely punctate, deeply impressed from the occiput to the base of the clypeus ;

thorax nearly one half wider than long, sides parallel posteriorly, arcuately narrowed in front, disc convex,

median line impressed from a point in front of the base to three fourths of the distance to the apex, the

impression sharp posteriorly, broader in front, surface rather roughly granulate, with a tendency to form

ruge, coarsely punctate at the hind angles; elytra vaguely striate, strie indistinctly punctate, intervals

slightly convex, coarsely transversely wrinkled, the juxta-sutural region elevated near the apex; body

beneath coarsely, not closely punctate, metasternum and the sides of the abdomen smoother ; legs rufo-

piceous.

Length 13:5 millim.

Hab. Nicaragua, Chontales (Belt).

Larger and more robust than the preceding species, from which it differs notably in

having the metasternal sulci very oblique, extending in an almost direct line from the

outer front angles of the metasternum to near the middle of the posterior margin. In

G. bisulcatus these sulci are for a distance parallel with the episternal suture. The

ventral sulci also converge slightly and are extended in a well-defined manner on the

last segment.

IDIOTARSUS.

Idiotarsus, de Bonvouloir, Mon. des Eucnémides, p. 137 (1870).

This genus is readily known from any other at present represented in our fauna by

the presence of the straight metasternal grooves without ventral grooves. Until the

discovery of the present species the genus has been restricted to South America.

1. Idiotarsus estriatus.

Oblong, subcylindrical, narrowed posteriorly, piceous, shining, sparsely clothed with brownish-yellow pubescence,

which tends to arrange itself in rows near the apex of the elytra: margin of the clypeus bisinuate, the

lateral margins slightly elevated ; head moderately closely punctate, median carina well marked, extending

216 SERRICORNIA.

to the edge of the clypeus ; antenne brown, ferruginous near the apex; thorax broader than long, sides

parallel for a short distance posteriorly, then arcuately narrowing to the front, surface not closely punctate,

the punctuation very sparse at the sides, a faintly impressed, smooth median line posteriorly ; elytra with

the sutural stria alone distinct, surface otherwise irregularly punctate, more coarsely but less densely than

that of the thorax; body beneath shining, closely punctate at the sides, pubescent ; legs piceous, tibiz

and tarsi paler.

Length 5-6 millim.

Hab. Nicaracva, Chontales (Janson).

Apparently related to J. muticus, but with a bisinuate clypeus and elytra without

strie. The two specimens before me appear to be of different sexes, of which the

male is smaller and more attenuate posteriorly.

PCACILOCHRUS.

Pecilochrus, de Bonvouloir, Mon. des Eucnémides, p. 148 (1870).

This genus differs by very feeble characters from Jdiotarsus. ‘The anterior angle of

the metasternum has an oblique line, which probably varies in distinctness in the

different species, at all events it is quite indistinct in the species described below.

A renewed examination convinces me that the species described by myself from the

North-American region as Stethon errans should be referred to this genus, notwith-

standing the fact that both the longitudinal sulcus of the metasternum and the oblique

line are quite indistinct. From this we have a wide distribution for the six species—

one each from Florida, Nicaragua, Brazil, and Madagascar, and two from Borneo.

1. Pecilochrus fractus.

Oblong, cylindrical, moderately convex, slightly narrower behind, brownish, feebly shining, sparsely clothed

with cinereous pubescence; antenne ferruginous, serrate from the fourth joint: head coarsely, not

closely, punctate, a faint trace of a smooth median line, clypeus truncate in front ; thorax distinctly wider

than long, sides straight and parallel posteriorly, arcuate at the apical third, disc convex, moderately

closely, not coarsely, punctate, a faint smooth median line, hind angles broadly rounded ; scutellum oval,

truncate at the base; elytra striate, strie distinctly coarsely punctate at the apical third and along the sides,

intervals flat, slightly convex at the apex, moderately closely submuricately punctate atthe base, gradually

more sparsely towards the apex; abdomen closely, moderately coarsely punctate ; legs brown,

Length 8°5 millim.

Hab. Nicaraeua, Chontales (Belt).

This species is quite distinct from those with non-carinate front, either by the

arrangement of the pubescence or by the structure of the antenne.

THAMBUS.

Thambus, de Bonvouloir, Mon. des Eucnémides, p. 160 (1870).

A genus composed of comparatively small species peculiar to Tropical America, with

one exception. It is very closely related to Dromeolus.

THAMBUS.—DROMAOLUS. ~ 217

1. Thambus agilis.

Thambus agilis, de Bonv. Mon. p. 162, t. 6. fig. 61.

Hab. Mexico, Cordova (Sallé1); Panama, Volcan de Chiriqui 2500 feet (Champion).

Distinguished from the following species by the presence of a distinct frontal carina.

2. Thambus inexspectus.

Thambus inexspectus, de Bonv. Mon. p. 163, t. 6. fig. 7".

Hab. Mexico, Cordova, Toxpam (Sallé 1).

Readily known by the absence of elytral stria and the non-carinate front.

8. Thambus pusillus. |

Thambus pusillus, de Bonv. Mon. p. 165, t. 6. fig. 8°.

Hab. Mexico, Cordova, Toxpam (Sal/é1); Guatemaua, San Gerdénimo (Champion) ;

Panama, Caldera in Chiriqui (Champion).

Smaller than the preceding species and narrower, with the elytra vaguely striate.

DELTOMETOPUS.

Deltometopus, de Bonvouloir, Mon. des Eucnémides, p. 171 (1870).

This genus is also very closely related to Dromeolus, but has the antennal groove

wider in comparison with the prosternal triangle, and at the same time wider posteriorly

than in front.

1. Deltometopus foveolatus.

Eucnemis foveolatus, Guérin, Ann. Soc. Ent. Fr. 1848, p. 187°.

Deltometopus foveolatus, de Bonv. Mon. p. 186, t. 7. figg. 7(2),9(3)’:

Hab. Mexico, Coahuila (Horn), Fortin in Vera Cruz (H. H. Sith), Teapa?; Britisu

Hownpuras, Belize (Blancaneaux); Guatemata, El Tumbador 2500 feet, Las Mercedes,

Zapote, Paso Antonio (Champion); Panama, Bugaba, Volcan de Chiriqui (Champion).—

Soutn America, Bogota, Cayenne t.

DROMZOLUS.

Dromeolus, Kiesenwetter, Naturg. der Ins. Deutschl. iv. 2, p. 197 (1858) ; de Bonvouloir, Mon. des

Eucnémides, p. 1938.

This genus is one of a small number in the family with fairly numerous species, and

at the same time with one or more representatives in nearly every part of the globe.

As usual, in such cases, the form is variable, with a tendency to reproduce that of

closely related genera, as of Fornax in temperate North America, and Thambus

especially in our own fauna. |

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1890. oF

218 SERRICORNIA.

In consequence of the great increase of the number of the Central-American species,

from six to fifteen, and the close resemblance between many of them, the following Table

has been prepared in order to give greater prominence to the essential characters :—

Antennal grooves narrow, equal in width for their entire length.

Prosternal sutures simple 2.

Prosternal sutures deeply grooved 7.

Antennal grooves wide, much broader posteriorly . 10.

2. Interocular ridge entire . 3.

Interocular ridge interrupted at the middle 9.

3. Clypeus not cariniform at the base nor carinate . 4.,

Clypeus cariniform at least at the base . 8.

4. Pubescence of the elytra uniform in colour.

Black, slightly shining, sculpture not rugose, pubescence beneath

inconspicuous; posterior edge of the propleural triangle

much shorter than the inner . oe merens.

Pubescence cinereous and conspicuous, sculpture rough and sub-

granular; posterior edge of the propleural triangle equal to

the inner Se ee ee senilis.

Pubescence of the elytra not uniform, sometimes forming a design. 5.

5. Head with a slight frontal carina cinerascens.

Front not carinate . 6.

6. Thorax at the middle of the base elevated in a slight longitudinal

carina . oe . oe . tristis.

Thorax at the middle near the base longitudinally impressed . properus.

Thorax neither carinate nor impressed.

Elytra simply cinereo-pubescent for a short space at the base and

apex only . . ‘ . . . . gsaller.

Elytra cinereo-pubescent at the base and apex, also along the

suture from the base sone ‘ variegatus.

Elytra narrowly cinereo-pubescent at the base and apex, a narrow

transverse median band connected along the suture with the

base . . . . ; ornatulus.

7. Elytra broadly cinereo- pubescent at the base and apex . tripartitus.

8. Clypeus carinate for at least half its length ; cyte striate, surface

subopaque and somewhat granular . . . oe . dilutipes.

Clypeus carinate at the base only; elytra not striate, surface

shining . . 2 - pusio.

9. Interocular carina not or very feebly elevated, not t extending down-

ward on the clypeus. oe

Thorax densely punctate .and opaque; elytra with a narrow

sutural and marginal line of cinereous pubescence . suturalis

Thorax not closely punctate, shining; elytra slightly cinereo-

pubescent at the base vanus.

DROMZOLUS. 219

Interocular carina anteriorly elevated, the inner end curving down-

ward on the sides of the clypeus ; antenne paler at the base . fetricus.

10. Elytra scarcely visibly striate; antennee and legs ferruginous ; in-

terocular carina entire, clypeus not carinate . . . . . . . fastidiosus.

The last five species are very Thambus-like in appearance, while those at the head

of the table approach the North-American type.

1. Dromzxolus merens.

Oblong, moderately convex, black, sparsely clothed with short, inconspicuous, nearly black pubescence:

antenne black, closely articulated, joint three slightly longer than four; head densely, rather coarsely

punctate, a slight depression near the interocular carina, which is entire, clypeus narrow at the base,

not carinate; thorax a little wider than long, gradually narrowed from the hind angles, arcuately in front,

disc convex, a slight depression at the basal margin each side of the middle, surface densely punctate,

more opaque than the elytra; elytra finely striate, intervals scarcely convex, moderately closely punctate,

the punctures much finer than on the thorax; body beneath black, moderately shining, closely punctate,

finely pubescent.

Length 4:5-6 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Closely related to D. tristis, which it resembles in form, but with uniform pubescence

not different from the surface colour.

2. Dromeolus senilis.

Oblong, not very convex, narrowed posteriorly, black, subopaque, clothed with cinereous pubescence equally

over the entire surface : antenne piceous, feebly serrate, third joint one half longer than the fourth ; head

densely punctured and subopaque, a very slight median. impressed line in front, interocular carina entire,

clypeus moderately separating the antenne at the base, not carinate; thorax a little broader at the base

than long, sides arcuately convergent to the front, disc moderately convex, a short ante-scutellar carina,

surface very densely punctate ; elytra distinctly striate, the intervals closely subgranulately punctate, and

quite rough at the base; body beneath very densely punctate and subopaque, abdomen pubescent ; legs

piceous.

Length 4 millim.

Hab. GuateMA.a, Zapote (Champion).

While this species possesses all the characters leading to its reference to D. cinerascens

by the table given by de Bonvouloir, the absence of a frontal carina and the presence

of a small one at the base of the thorax, together with the uniform pubescence and the

more opaque and roughly-sculptured surface, readily distinguish it.

3. Dromeolus tristis.

Dromeolus tristis, de Bonv. Mon. p. 223, t. 9. fig. 4’.

Hab. Guatemata, Yzabal (Sallé1), Teleman in Vera Paz (Champion); Nicaragua,

Chontales (Belt).

Similar in form and vestiture to D. sall@i, but without a cinereous space at the tip of

2F 2

220 SERRICORNIA.

the elytra. There is a slight frontal carina and the base of the thorax opposite the

scutellum is subcarinately elevated.

4. Dromeolus cinerascens.

Dromeolus cinerascens, de Bonv. Mon. p. 224, t. 9. fig. 5°.

Hab. Muxico, Teapa (coll. Chevrolat 1).

Evidently closely allied to D. tristis, and with a feeble frontal carina. The form of

the thorax, on which de Bonvouloir places some reliance for their separation, is purely

sexual. I have not seen an example of this species.

5. Dromzolus properus.

Similar in form and in most of its structural characters to D. tristis. Thorax considerably wider than long,

gradually narrowed to the apex, disc convex, closely and rather coarsely punctate, a distinct longitudinal

impression at the base, surface cinereo-pubescent ; elytra narrowly cinereo-pubescent at the base, the

pubescence extending a short distance along the suture and sides; body beneath less shining than above

and more conspicuously cinereo-pubescent ; abdomen closely punctate.

Length 4 millim.

Hab. Panama, Bugaba (Champjon).

Easily known from D. tristis and D. cinerascens by the very distinctly impressed line

near the middle of the base of the thorax.

6. Dromeolus sallzi.

Dromeolus sallei, de Bony. Mon. p. 220, t. 9. fig. 2°.

Hab. Mexico 1, Cordova (Sal/é).

The type of this species has the grey pubescence conspicuous on the thorax and on

the base of the elytra, where it forms rather a broad band, the posterior border curving

from the suture backward along the side; the apical fourth is also similarly pubescent.

The figure above cited gives rather a false idea of the species.

7. Dromezolus variegatus. (Tab. X. fig. 10.)

Dromeolus variegatus, de Bonv. Mon. p. 222, t. 9. fig. 3°.

Hab. Guatemata, Sinanja in Vera Paz (Champion).—Amazons, Ega 1.

Similar in form to D. sallwi, but with the sides and base only of the thorax cinereo-

pubescent. The elytral ornamentation is similar, except that the basal space extends

narrowly along the suture to near the middle. In the figure given by de Bonvouloir,

the parts most darkly shaded are those most densely cinereo-pubescent.

8. Dromeolus ornatulus. (Tab. X. fig. 11.)

Oblong, moderately convex, piceous-black, slightly shining, surface pubescent, forming a design: antenne

rather stout, closely articulated, not serrate, piceous ; head densely punctate, sparsely cinereo-pubescent,

DROMZOLUDS. 221

a slight concavity near the base of the clypeus, interocular carina entire, angulate at the middle, clypeus

very narrow at the base, but not carinate ; thorax about as long as wide at the base, sides feebly arcuately

narrowed to the front, dise very closely punctate, surface clothed with cinereous pubescence, leaving a

large transversely oval space bare; elytra vaguely striate, intervals feebly convex, closely punctate, some-

what rough at the base, surface in great part with nearly black pubescence, with cinereous pubescence

narrowly along the base, extending along the suture and sides to the middle, joining a narrow transverse

band, a small space at the apex cinereous; beneath piceous-black, feebly shining, closely punctate,

abdomen cinereo-pubescent ; legs piceous, tarsi paler.

Length 5:5 millim.

Hab. Nicaragua, Chontales (Belt).

This species should be placed near D. bellus, from which it differs strikingly in

ornamentation.

9. Dromezolus tripartitus. (Tab. X. fig. 12.)

Oblong, moderately convex, piceous-black, feebly shining, clothed in great part with cinereous pubescence :

antenne piceous; head densely, subrugosely punctate, a slight depression at the base of the clypeus,

interocular carina entire, angulate in front, clypeus very narrow at the base and there carinate; thorax

very nearly as long as wide at the base, sides posteriorly straight but convergent, near the front angles

arcuate, dise moderately convex, an oblique impression each side of the middle of the base, very closely

punctate, surface cinereo-pubescent but with a large triangular space, with the base in front, less pubes-

cent; elytra vaguely striate, intervals not convex, closely punctate, rugulose near the base, basal third

cinereo-pubescent (its posterior edge bisinuate), apical third similarly pubescent (its anterior edge bisinuate),

the intermediate space formed of two oval spots broadly united at the suture, clothed with nearly black

pubescence ; body beneath piceous, shining, moderately closely punctate, cinereo-pubescent ; legs piceous,

tarsi somewhat paler.

Length 4 millim.

Hab. Guatemata, Volcan de Atitlan above 2500 feet, Zapote (Champion).

This species is related to D. bellus and D. ornatulus, but with quite a different design

from either.

10. Dromzolus dilutipes.

Dromeolus dilutipes, de Bonv. Mon. p. 207°.

Hab. Mexico, Toxpam }, Cordova (Sallé), Teapa in Tabasco (H. H. Smith); Panama,

Bugaba (Champion).

This species is readily known from the others in our fauna by its parallel form,

rather roughly sculptured surface, pale antenne and legs, entire interocular ridge, and

carinate clypeus. The pale antenne noted by de Bonvouloir is not a constant character.

11. Dromzolus pusio.

Oblong, piceous-black, shining, thorax and the base of the elytra sparsely cinereo-pubescent; antenne pale

ferruginous, the second joint shorter than the fourth, the third longer: head closely and rather coarsely

punctate, interocular carina entire, clypeus extremely narrow at the base and forming a carina; thorax

broader than long, gradually narrowed to the apex, the sides more arcuate in the female, disc convex,

moderately coarsely, not densely punctate, at hind angles slightly depressed ; elytra without trace of strie

except a faint sutural one, surface confusedly punctate, rather closely and roughly near the base, more

222 SERRICORNIA.

sparsely towards the apex; body beneath subopaque, coarsely and closely punctate, cinereo-pubescent ;

legs ferruginous ; antennal grooves very narrow, not wider behind.

Length 3-3°5 millim.

Hab. Muxico, Atoyac in Vera Cruz (H. H. Smith).

By de Bonvouloir’s tabular arrangement this insect is related to D. dilutipes; but

the form and the absence of striee associate it with the Thambiform species, of which

D. fastidiosus may be considered typical.

12. Dromzolus suturalis.

Oblong, moderately convex, piceous-black, shining, thorax opaque; sparsely cinereo-pubescent, on the elytra

more evidently along the side margin and suture ; antenne rufo-testaceous at the base, outer half gradually

darker, subserrate, joints three and four equal: head densely punctate and opaque, interocular carina not

elevated, ending abruptly at the base of the clypeus, the latter flat, not carinate ; thorax broader at the

base than long, much narrowed at the apex, sides sinuate in front of the hind angles, disc convex, densely

but not roughly punctate, opaque, a slight depression at the hind angles, surface sparsely cinereo-

pubescent; elytra vaguely striate near the base, surface not closely submuricately punctate, pubescence

sparse and piceous, cinereous along the suture and side margin; body beneath moderately closely punctate,

cinereo-pubescent ; femora piceous, tibiee and tarsi rufo-testaceous.

Length 3 millim.

Hab. Mexico, Xucumanatlan in Guerrero (H. H. Smith).

This species is evidently allied to D. funcki; but differs in having a less prominent

interocular carina and the third joint of the antenne not longer than the fourth, and also

in the colour of the antenne and the disposition of the cinereous vestiture. The sutural

stria is not impressed at the apex as in the following three species.

13. Dromeolus vanus.

Similar in form and appearance to D. fastidiosus (2); basal joint of the antenne piceous, outer joints brown,

third joint distinctly longer than the fourth: head densely punctate, sparsely cinereo-pubescent, front

slightly concave, interocular carina somewhat prominent, rather broadly interrupted at the base of the

clypeus, this nearly as broad as half the distance to the eye, flat; thorax broader at the base than long,

sides straight and convergent, near the apex arcuate, disc convex, a feeble median longitudinal impression

in front of the base, surface moderately shining, closely, not densely punctate, finely sparsely pubescent,

cinereous at the sides and base; elytra vaguely striate at the base only, the sutural stria deepened and

broadened at the apex, surface rather closely submuricately punctate, densely and more roughly at the

base ; body beneath more coarsely and closely punctate than above, somewhat strigose, sparsely pubescent ;

femora piceous, tibiee and tarsi pale rufo-testaceous.

Length 4 millim.

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith).

The elytra are sparsely clothed with a dark pubescence, cinereous along the base, and

slightly so along the sides. While it resembles D. fastidiosus, the present species may

be known by the interrupted interocular carina, and by the sutural stria being deep and

broadened at the apex.

DROM ZOLUS.—DIACERUS. 223

14. Dromeolus tetricus.

Similar in form to D. fastidiosus (3); antennew scarcely serrate, piceous, the two basal joints paler: head

densely punctate, vaguely longitudinally impressed, sparsely cinereo-pubescent, interocular carina distinctly

elevated, curving downward along the side of the clypeus, this very narrow at the base, not carinate; thorax

broader at the base than long, sides convergent to the apex, slightly sinuate in front of the hind angles,

arcuate anteriorly, disc moderately convex, closely, moderately ccarsely punctate, sparsely cinereo-pubescent ;

elytra flattened at the tip, vaguely striate at the base, sutural stria deepened at the apex, surface irregularly

submuricately punctate, closely at the base, quite sparsely at the apex, sparsely pubescent, cinereous at the

humeri; body beneath moderately coarsely and closely punctate, sparsely cinereo-pubescent; legs pale

rufo-testaceous, femora slightly darker.

Length 2°5-3 millim.

Hab. Guatemata, Las Mercedes, Capetillo (Champion); Panama, Volcan de Chiriqui

3000 feet (Champion).

The smallest species at present known. The base of the propleural triangle is about

as long as the inner side. In the female the sides of the thorax are a little less

sinuate. The two or three basal joints of the antenne are paler, but a little variable.

The punctuation of the thorax also varies slightly in density.

15. Dromeolus fastidiosus.

Dromeolus fastidiosus, de Bonv. Mon. p. 226, t. 9. fig. 6 (9), t. 10. fig. 1 (g)*.

Tachycnemis Delauneyi, Fleut. & Sallé, Ann. Soc. Ent. Fr. 1889, p. 406, t. 7. fig. 12 *.

Hab. Mexico, Teapa in Tabasco (H. H. Smith); Panama, Bugaba, Volcan de Chiriqui

(Champion).—Sovutn America, Cayenne!; Antitims, Guadaloupe *.

A small species which seems te be related to Thambus and Deltometopus. It has the

style of elytral sculpture of the former in both sexes, while the male thorax is very

like that of a Thambus. The antennal grooves being decidedly wider behind suggest

Deltometopus.

I have examined the type of Tachycnemis delauneyi; it is inseparable trom D. fasti-

diosus, de Bonv.

DIACERUS.

Diacerus, de Bonvouloir, Mon. des Eucnémides, p. 189 (1870).

This genus at present contains but two species, and while closely related to Dromeolus,

it may be known by the second and third joints of the antenne being very small

and equal.

1. Diacerus antennatus.

Diacerus antennatus, de Bonv. Mon. p. 190, t. 8. fig. 1°.

Hab. Mexico, Toxpam, Cordova (Sallé1); British Honpuras, R. Sarstoon (Llanca-

neaux); Nicaragua, Chontales (Belt) ; Panama, Volcan de Chiriqui (Champion).

In this species the antenne are a little longer than half the body, and rather strongly

serrate from the fourth joint. iy |

224) SERRICORNIA.

2. Diacerus grisescens.

Diacerus grisescens, de Bonv. Mon. p. 191, t. 8. fig. 2".

Hab. Mexico, Toxpam, Cordova (Sallé+), Chilpancingo in Guerrero (H. H. Smith) ;

GvateMaLA, Sabo and Panima in Vera Paz, Capetillo (Champion); Panama, Volcan de

Chiriqui (Champion).

The antenne are shorter than half the body, stouter than in D. antennatus, and not

serrate. D. grisescens is without any doubt the female of the preceding species, though

here numbered as distinct.

PHANOBOLUS.

Form cylindrical, convex, scarcely narrower behind; antenne a little longer ( ¢ ) or shorter ( @ ) than half the

body, first joint as long as the next three, not stout nor carinate in front, second joint small, third nearly

half as long as the first, joints four to ten equal in length, longer than wide (¢ ) or nearly square ( 9 ),

eleventh longer; clypeus sinuate each side of the apex, slightly notched at the middle, base rather broad,

but a little narrower than the distance to the eye; interocular carina entire, feebly elevated on the base of

the clypeus; antennal grooves very deep, continued on the head and not narrowed by the eye, broader in

front than behind, more than half as wide as the triangle of the propleure, this longer than wide at the

base, the apex not attaining the front edge of the prosternum ; posterior coxal plates not twice as wide at

the widest part as at the outer end; tibie slightly broader at the apex, especially the anterior pair ; first

joint of the hind tarsus not so long as the following joints together, the fourth joint distinctly excavate-

emarginate; claws slightly broadened, but not toothed at the base.

The species for which this new name has been suggested responds so closely to the

characters given for Anabolus that there seems to be no essential difference, except that

of the penultimate tarsal joint. It is probable, however, that other characters will be.

found on comparison.

1. Pheenobolus bicolor. (Tab. X. fig. 15.)

Cylindrical, convex, scarcely narrowed posteriorly, piceous-black, subopaque, thorax orange-red and faintly

pubescent ; antenne piceous: head piceous, shining, coarsely, not closely punctate, a slight concavity near

the base of the clypeus, this roughly punctate; thorax distinctly longer than wide, sides straight and

parallel, feebly arcuately narrowed at the apical third, dise regularly convex, a moderately deep oval

depression each side of the middle at the base, lateral margin distinctly double near the front angle,

surface densely granulately punctate; elytra with parallel sides, arcuately narrowed at the apical third,

distinctly striate, strie entire, intervals punctate-scabrous, subgranular at the base; beneath piceous,

shining, abdomen closely punctate, finely pubescent; legs piceous, tarsi ferruginous.

Length 4-7 millim.

Hab. Nicaracua, Chontales (Belt); Panama, Bugaba, San Lorenzo (Champion).

In form this insect is not unlike some Microrhagi from the same region, but its

generic characters are so well marked as to make it easily recognized.

EURACHIS.

Oblong, parallel, moderately convex ; eyes moderate, not narrowing the antennal groove on the head; antenne

as long as half the body, much flattened, broader externally, first joint nearly as long as the next three,

second small, third longer than the fourth, joints 4-10 nearly equal in length, 3-10 rather strongly but not

EURACHIS.—FORNAX. 225

acutely serrate, eleventh joint longer, obliquely emarginate ; thorax with a single sharply-defined marginal

line which limits the antennal groove externally, the latter deep and smooth, rather broad, of equal width,

more than half the width of the propleural triangle, this longer than wide at the base, but not sharply

limited internally; prosternal sutures well marked; metasternal episterna moderate in width, slightly

narrowed near the front ; posterior coxal plates broadly dilated internally, but not narrow externally ; last

ventral segment prolonged in a point as in Nematodes; legs rather slender but not long; hind tarsi much

longer than the tibie, the first joint not so long as the following joints together, fourth joint small,

excavate-emarginate; claws broadly toothed at the base.

This genus shows affinities in several directions. By the system of de Bonvouloir it

is related in its more important characters to the genera allied to. Dromeolus, but

differs from all of them in not having the antennal groove sharply limited on its inner

border. The structure of the last ventral segment suggests the genera allied to

Nematodes, while the antenne are of a form not known to me elsewhere in the family.

1. Kurachis elegans. (Tab. X. fig. 14.)

Elongate, punctate, depressed-cylindrical ; antenne black, nearly as long as half the body; head densely

coarsely punctured, fulvo-pubescent, orange-red, with a large frontal space reaching the occiput piceous, front

convex, a faint median impression anteriorly which extends on the clypeus, this broadly arcuate in front,

its base wider than half the distance to the eye ; thorax wider at the base than long, sides at the posterior

two-thirds slightly sinuous, convergent in front, anterior third arcuately narrowed, disc convex, the basal

declivity rather fiat, a short smooth median line near the base, a slightly transverse concavity each side of

the centre of the disc, surface densely subrugosely punctate, clothed with conspicuous silken fulvous pubes-

cence, darker in colour along a broad median line, colour of the surface orange-red, a large piceous space of

somewhat triangular form with the base in front joined by a broad band to a piceous space transversely

placed at the base, at each hind angle a triangular piceous space; elytra parallel, narrowed at the apical

third, finely striate, intervals slightly convex, closely finely punctured, the punctures forming short

transverse strigz, colour paler orange, the suture, apex, and sides piceous, the latter gradually more

widely from the humerus to the apex ; prothorax beneath orange-yellow, prosternum closely finely punctate,

fulvo-pubescent, intercoxal prolongation elongate-triangular; body beneath and abdomen piceous-black,

moderately shining, abdomen very finely, not densely punctate, finely pubescent; legs piceous, tarsi

ferruginous.

Length 8°5 millim.

Hab. Nicaracva, Chontales (Belt).

The appearance of this insect is quite unlike that of the Kucnemide generally,

although the form is not strikingly different from that of Arrhipis.

FORNAX.

Fornax, Castelnau, in Silberm. Rev. Ent. iii. p. 172 (1885) ; de Bonvouloir, Mon. des Eucnémides,

p- 295.

Isarthrus, Leconte, Proc. Acad. Phil. vi. p. 48.

Onychodon, Newman, Ent. Mag. v. p. 384.

This genus from its magnitude as well as its organization, is the central figure of the

family, and while containing nearly one hundred species, is more homogeneous in facies

and organization than usual in genera with such numerous representatives. There is,

however, a tendency to approach Plesiofornax through those species in which the fourth

BIOL. CENTR.-AMER., Coleopt., Vol. IIL. Pt. 1, November 1890. 2G

226 SERRICORNIA.

joint of the antenne is small, as will be seen in the less sharply limited inner border of

the antennal groove.

Owing to the relatively large number of species added to the Central-American

fauna, the following Table has been prepared to assist in their identification :—

1. Second joint of the antennz shorter than the fourth; inner border of

the antennal groove very sharply defined . . . ». . + . 2.

Second joint of the antenne equal to or longer than the fourth ; inner

border of the antennal groove not sharply defined 9.

2. Epipleure punctate and not sulcate . 3.

Epipleurz smooth, grooved their entire length . 8.

3. Species bicoloured or ornate . 4.

Species uniform in colour . 5.

4. Elytra piceous-black.

Head, thorax, and greater part of the underside orange-yellow ;

mesopleurz smooth in front . owe ee. Otripennis.

Head and thorax orange-yellow, the latter with a , median stripe and

narrow lateral border black ; mesopleure punctate notabilis.

Elytra with two oblong ferruginous spots on each.

Thorax ferruginous, with broad median and lateral piceous stripes . vartipennis.

5. Pronotum rugosely sculptured, the intervals between the punctures

more or less elevated . re 6.

Pronotum simply punctate, the intervals between the punctures smooth. 7.

6. Intercoxal process of the prosternum parallel-sided infrequens.

Intercoxal process of the prosternum more or less convergent to the

apex a affinis.

7. Thorax closely punctate; above uniformly coloured.

Elytra parallel in their basalhalf . . . . confusus.

Elytra gradually attenuate from the base to the : apex . petitii.

Thorax sparsely punctate on the disc and posteriorly ; thorax piceous ;

| elytra castaneous ; last ventral segment with a central perforation

(sexual ?) re castaneipennis.

8. Last ventral segment acutely oval at the tip.

Antennal groove not half as wide as the propleural triangle.

Pronotum simply punctate, not rugose . . mendax.

Pronotum punctate and rugose, more especially when viewed

from behind. . obrutus.

Antennal groove nearly as wide as the propleural triangle sceleratus.

Last ventral’ segment sinuate on each side and acutely prolonged ;

mesopleure quite smooth in front . truncatus.

9. Interocular carina more or less interrupted at the middle 10.

Interocular carina continuous across the clypeus; clypeus usually with

a median carina, this sometimes rather short or absent adjectus.

10. Head with sharply-defined carina at the middle . carmifrons.

Head not carinate . . . . . we ee et

insitus.

FORNAX. 227

1. Fornax atripennis. (Tab. X. fig. 15.)

Oblong, cylindrical, feebly convex, orange-yellow, antenne, elytra, abdomen, and tibie black, clothed with

pubescence the colour of the surface, feebly shining: antennew longer than the thorax, second joint very

small, third half as long as the first, fourth but little shorter, the following joints very slightly longer ;

head convex, densely punctate, front not carinate, interocular ridge not elevated, clypeus more than half

as wide at the base as the distance to the eye, surface fulvo-pubescent ; thorax wider at the base than long,

sides nearly parallel posteriorly, arcuately narrowed in front, lateral margin very indistinctly double, disc

convex, a slight oblique impression each side of the middle of the base, between which is a slight convexity,

surface very densely punctate, scarcely rugose, subopaque, fulvo-pubescent ; elytra finely striate, intervals

flat, the entire surface closely but not roughly submuricately punctate; epipleurse concave near the base

and smoother ; prosternum beneath very finely closely punctate, the apical process acute at the tip; antennal

groove deep, smooth, sharply defined, parallel ; abdomen finely, not densely punctate ; last ventral segment

rounded at the tip; femora ferruginous-yellow, tibize usually piceous, except sometimes the anterior pair,

tarsi piceous, last two joints rufo-testaceous.

Length 9-11 millim.

Hab. Guatemaa, Zapote (Champion); Panama, Bugaba (Champion).

The number of bicoloured species is small, and from all of them this one is easily

known by its arrangement of colours.

2. Fornax notabilis.

Fornax notabilis, de Bonv. Mon. p. 423°.

fab. Muxico!, Cordova (Sallé).

The thorax is orange-red, with the sides narrowly black, and a median black stripe

broader in front. The elytra are piceous-black.

8. Fornax variipennis.

Fornaz variipennis, de Bonv. Mon. p. 421, t. 21. fig. 4°.

Hab. Mexico, Teapa (coll. Chevrolat 1); Guatemata, Senahu in Vera Paz (Champion) ;

Panama, Bugaba (Champion).—Braziu 1.

Easily known by the coloration. ‘The thorax has on each side of the middle a paler

space extending from the base to the apex, and on each elytron are two oblong-oval

spots of similar colour.

4, Fornax infrequens.

Fornax infrequens, de Bony. Mon. p. 371, t. 18. fig. 1”.

Fornax guadeloupensis, Fleut. & Sallé, Ann. Soc. Ent. Fr. 1889, p. 405, t. 7. fig. 11°.

Hab. Muxico!; Panama, Bugaba (Champion).—ANTILLES, Guadaloupe ?.

A large species closely related to F. affinis. It has not been certainly identified

in our series, although a rather small specimen (7 millim.) from Bugaba seems to

belong here.

I have examined the type of F. guadeloupensis ; it does not differ from F. infrequens,

de Bonv.

2G 2

228 SERRICORNIA.

5. Fornax affinis.

Fornax affinis, de Bonv. Mon. p. 386, t. 19. fig. 1’.

Hab. Mexico, Orizaba1, Toxpam !, Cordova! (Sallé); GUATEMALA, Coatepeque, Cerro

Zunil, San Isidro (Champion); Panama, Bugaba, Volcan de Chiriqui (Champion).

Variable in size (8-17 millim.) and somewhat in colour. The typical specimens

from the Sallé collection are paler than others more recently collected, probably from

their age.

6. Fornax confusus.

Fornax confusus, de Bonv. Mon. p. 3838, t. 18. fig. 8°.

Hab. Mexico}.

Very closely related to /. petiti, but has not been identified in our series.

7. Fornax petiti.

Fornax Petitii, Guérin, Ann. Soc. Ent. Fr. 1843, p. 1837; de Bonv. Mon. p. 382°.

Hab. Mexico ! ?.

Has not been identified by me.

8. Fornax castaneipennis.

Oblong, moderately convex, hind angles of the thorax and elytra castaneous, surface moderately shining, sparsely

clothed with fulvous pubescence: antennee slender, longer than the thorax, pale ferruginous, first joint

darker, second small, half as long as the fourth, which is slightly longer than the fifth; head convex,

coarsely and moderately closely punctate, interocular carina not extending on the base of the clypeus, this

broad at the base, slightly wider than the distance to the eye; thorax broader at the base than long, sides

arcuately narrowing to the front, lateral margin distinctly doubled, disc regularly convex, a slight depres-

sion each side of the middle of the base, these united by a transverse impression, punctuation moderately

coarse, but not rugose, along the sides, much finer in front and along the middle, especially near the base ;

elytra parallel at the basal third, then narrowed to the apex, finely striate, intervals slightly convex,

moderately closely punctate, slightly transversely wrinkled at the base; prosternum moderately coarsely

_ and closely punctate, shining, the apex acutely triangular, scarcely impressed at its base; abdomen more

closely punctate, fulvo-pubescent ; legs ferruginous.

Length 7 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

The unique example before me has the last ventral segment quite coarsely punctate at

the apex, and near the base a very deep fovea as if made by the perforation of a pin

0-2 millim. in thickness. While this species is apparently related to F. petiti and

F. confusus, it differs from both by the fine and sparse punctuation of the middle

of the thorax. As the specimen is a female, the ventral fovea may be a sexual

character.

FORNAX. 229

9. Fornax mendax.

Fornax mendax, de Bony. Mon. p. 398, t. 19. fig. 77.

Hab. Mexico 1, Cordova (Sallé); Guatemata, Zapote (Champion); Nicaraeua (Sallé)

Chontales (Belt).

A large species resembling F. affinis, but with smooth grooved epipleure.

10. Fornax obrutus.

Fornax obrutus, Guérin, Ann. Soc. Ent. Fr. 1843, p. 183'; de Bonv. Mon. p. 895, t. 19. fig. 8°.

Hab. Mexico, Orizaba (coll. Chevrolat! 2); Guatemata, Zapote (Champion); Panama,

Bugaba (Champion).

The thorax is simply punctate and not roughly sculptured, while in its other

characters the species is close to F. mendax.

11. Fornax sceleratus.

Oblong, rather narrow, subcylindrical, moderately convex, brownish, feebly shining, sparsely clothed with

fulvo-cinereous pubescence: antennz slender, as long as half the body, ferruginous, second joint very

small, third two-thirds as long as the first, fourth shorter, this to the eleventh gradually longer ; head

convex, coarsely, densely, and somewhat roughly punctured, interocular carina feebly elevated, not

extending on the base of the clypeus, the latter as wide as the distance to the eye; thorax broader at the

base than long, sides arcuately narrowed from the base to the apex, lateral margin doubled in front, disc

convex, densely punctate and subopaque, the punctures simple posteriorly, but rough at the apex and sides,

a short smooth line at the middle near the base; elytra very little narrowed at the apex, striate, intervals

flat, sparsely punctate, especially posteriorly, not dense at the base, and slightly asperate near the humeri

only ; epipleuree smooth, and grooved their entire length ; prosternum densely punctate, the apex grooved

between the coxe and acute at the tip; antennal grooves broad and deep, nearly as wide as the propleural

triangle, not wider in front; mesopleure sparsely punctate over the entire surface; abdomen sparsely

punctate, the last segment rough at the apex ; legs ferruginous, the first joint of the hind tarsi scarcely as

long as the following joints united.

Length 6°5 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Closely related to F. mendax and F. obrutus, but narrower than either, and with

much wider antennal groove. It seems to connect Yornax with Liphytaais.

12. Fornax truncatus. (Tab. X. fig. 16.)

Oblong, cylindrical, very obtuse in front, piceous-brown, feebly shining, sparsely cinereo-pubescent : antennz

nearly twice as long as the thorax, slender, second joint very small, third about half as long as the first,

joints 4—6 gradually a little shorter, 7-11 gradually longer; head moderately convex, densely coarsely

punctured, interocular carina scarcely elevated, broadly interrupted at the base of the clypeus, which is

slightly wider than the distance to the eye; thorax subquadrate, broader than long, sides straight and

parallel, rounded only at the front angles, lateral margin double, the two edges sharp but very close, disc

very convex, surface opaque, granulate moderately closely in front, but on the basal declivity rather

sparsely punctate ; elytra striate, intervals comparatively finely punctate, not closely, and gradually more

sparsely towards the apex, humeral region slightly asperate; prosternum not closely punctate, broadly

grooved between the coxe, apex acute ; antennal grooves deep, wider just at the apex ; mesopleure in

great part smooth, sparsely punctate posteriorly ; abdomen sparsely finely punctate, the last segment

230 SERRICORNIA.

sinuate on each side and prolonged in an obtuse point, the surface subgranulate near the apex ; epipleure

grooved their entire length and smooth; legs ferruginous.

Length 9-13 millim.

Hab. Nicaraeva, Chontales (Janson, Belt).

This species presents an extraordinary assemblage of characters and a peculiar facies.

It seems to be allied to F. gibbosus, but easily known from it by the form of the last

ventral segment. A similar structure is described in /’. ventralis, but this insect has

flat epipleuree.

13. Fornax adjectus.

Cylindrical, moderately convex, narrowed behind, brown, feebly shining, finely fulvo-pubescent: antenne

longer than the thorax, filiform, first joint nearly as long as the next four, second distinctly longer than

the fourth, the latter shorter than the fifth, joints 5-10 gradually longer, eleventh one half longer than the

tenth; head convex, densely punctate, subrugose, not carinate, interocular ridge well marked, continuous

in an arcuate manner across the base of the clypeus, this about half as wide at the base as the distance to

the eye, more or less carinate along the median line; thorax broader at the base than long, sides arcuately

narrowed to the front, lateral margin single, disc convex, avery faint longitudinal impression near the base,

surface very densely punctate, subopaque, but not asperate ; elytra narrowed towards the apex, nearly

from the base, striate, intervals closely punctate, slightly asperate near the base; prothorax beneath

densely punctate, apex of the prosternum very acute, antennal groove deep, broader behind, punctured

along its inner border, where it is not as sharplv limited as usual in this genus; abdomen very densely

punctured at the apex, more sparsely in front ; legs ferruginous.

Length 7—9 millim.

Hab. GuatTEMALA, Capetillo, Sinanja in Vera Paz (Champion); Panama, Bugaba,

Volcan de Chiriqui (Champion).

In many of its characters this species resembles /. lacerda, but there is no frontal

carina, and the antennal grooves are distinctly broader behind. The outer edge of the

propleural triangle is not so sharply defined as usual in the genus. Some specimens,

by a peculiar arrangement of the punctuation, seem to have a very short frontal carina.

‘The carination of the clypeus may be nearly entire or visible at the base only.

14. Fornax carinifrons.

Oblong, moderately convex, narrower posteriorly, brownish-piceous, slightly shining, sparsely, finely fulvo-

pubescent: antennz longer than the thorax, slender, ferruginous, first joint darker, second much longer

than the fourth, which is short, but little longer than wide, outer joints gradually longer ; head convex,

densely, subrugosely punctate, with a well-defined carina beginning at the vertex, but not reaching the

base of the clypeus, interocular carina interrupted, but extending slightly on the base of the clypeus, this

narrower at the base than half the distance to the eyes; thorax wider at the base than long, sides

parallel for a short distance, then arcuately narrowed to the apex, lateral margin distinctly double in front,

disc regularly convex, surface densely punctate, slightly rugose at the sides, median line not impressed nor

carinate ; elytra striate, moderately closely punctate, rugose and transversely wrinkled at the base only ;

prosternum finely, not densely punctate, the apical prolongation impressed between the coxw, arcuately

narrowed to the apex; antennal groove not sharply limited on the inner side; abdomen closely finely

punctate, fulvo-pubescent, the last segment slightly elevated at the middle of the apex and acute; claws

slightly broader at the base, but not toothed.

Length 6-9 millim. .

Hab. Mexico, Jalapa(Hége); GuatemMaa, Panzos and Teleman in Vera Paz (Champion).

FORNAX.—CLADUS. 231

This is one of the species, not by any means unique in the family, in which there is

difficulty in assigning a generic place. The entire facies is that of Mornax, while the

feebly limited antennal grooves suggest Plesiofornax. It is, however, best retained

here, and doubtless resembles F. sinuwatus.

15. Fornax insitus.

Closely related to 7. adjectus, and differing very little in the superficial characters, except as follows :—Front

not carinate ; interocular carina feebly elevated, not extending on the base of the clypeus, this about half

as wide at the base as the distance to the eye; antennal groove deep, slightly punctured along its inner

edge, distinctly wider behind, but less than half as wide as the base of the propleural triangle opposite

that point ; last ventral segment slightly compresso-carinate at the apex.

Length 7-8 millim.

Hab, Panama, Bugaba (Champion).

By the scheme of de Bonvouloir this species is related to F. badius and Ff. additus,

but differs from both in its narrower clypeus at the base and by the antennal grooves

being wider behind.

CLADUS.

Cladus, de Bonvouloir, Mon. des Eucnémides, p.. 432 (1870).

This genus belongs to the Fornax series, having a well-developed and defined

antennal groove, which is narrowed on the head by the large eyes. ‘The prosternum in

front of the cox is broadly flattened, even slightly concave, the apical portion (as seen

from below) abruptly elevated, carinate at the middle, and prolonged in an obtuse point.

The most curious character is that presented by the mouth, which is not only unique

in the family but in the entire Coleopterous series. Of this de Bonvouloir makes the

following note :—‘ The parts of the mouth seem to be terminated by long stems,

slender and branching. Unhappily, the few examples before me have but fragments

of these parts, and render it impossible for me to say if they are palpi or appendices

of the maxille.” |

The appearance of the mouth beneath is as if the insect had grasped a small bunch

of pale moss or rootlets.

The mentum is semicircular in outline, deeply emarginate, the emargination partly

filled with a membranous partition; at the angle of the mentum is an oval appendage,

from the lower face of which arises a long ribbon-like extension, fimbriate on its

margins and pubescent on both sides. The labial palpi are modified out of all resem-

blance to organs of that character. They seem to arise at the emargination of the

mentum, and assume an arborescent appearance by dividing into four stems, of which

the innermost and third are again bifurcate, and the second and fourth simple. From

these stems shorter branches are given off on each side alternately, each branch ciliate

at the tip.

The maxille are bilobed, the outer lobe longer, in shape much like a boomerang,

252 SERRICORNIA.

very thin, ciliate on its edges and sparsely hairy on its flat sides; the inner lobe is

shorter, ribbon-like, slender at the base, and apparently not ciliate. In lieu of palpi the

maxille have, arising at their base, two simple stems like those of the mentum.

The entire structure, when dry, is extremely delicate and fragile, the ribbon-like ~

appendage of the mentum much contorted, but when placed in water the stems become

swollen, and the appearance then is much like a spongy mass. It is therefore

extremely difficult to realize the exact structure from these

two causes; but the accompanying figure will give a fair

idea of it. The figure represents the left side of the

mentum as seen from below, the maxilla removed from that

side. The maxilla is that of the right side in its normal

position, the half of the mentum removed in front, although

in nature the palpar organs are turned more outwardly.

The mandible presents nothing unusual. It is stout,

truncate at the tip, the lower edge prolonged in a lamina

which partly covers the delicate parts beneath.

When the head is deflexed the mouth-parts rest in the |

concavity of the prosternum, which is smooth at the middle and finely pubescent at

the sides. .

While I do not maintain that the sketch is perfectly accurate in all details, it

certainly fairly represents what I have been able to make out, and should any one be

fortunate enough to possess the material to repeat the experiment of elucidating this

complex arrangement he will be very willing to excuse any defects of this attempt.

1. Cladus maxillaris.

Cladus maxillaris, de Bonv. Mon. p. 488, t. 21. fig. 9°.

Hab. Mexico, Teapa (coll. Chevrolat 1); Panama, Bugaba, Volcan de Chiriqui, David

(Champion).—Guiana, Cayenne !.

The facies of this insect is almost exactly that of Fornax affinis.

De Bouvouloir remarks that either the first or last of these localities is probably

incorrect. As our localities are intermediate it is probable that both are correct.

PLESIOFORNAX.

Plesiofornax, de Bonvouloir, Mon. des Eucnémides, p. 460 (1870).

As the name indicates, this genus is very close to Fornax. The essential difference

between the two is found in the propleural structure, Mornaz having the antennal

groove more or less sharply limited internally by the edge of the propleural triangle,

while in the present genus no such character is evident, and the groove is indicated by

a smooth depression, which may itself be very indistinct. As a general rule the claws

PLESIOFORNAX. 233

are toothed in Mornax and simple in Plesiofornaz, and the first joint of the hind tarsus

is elongate in the former or less long than the following joints in the latter ; but excep-

tions, few in number, occur in both characters in the two genera. In those species

which approach Fornax most nearly (P. elongatus and P. puellus), the first hind tarsal

joint is long, and, as if in compensation, the claw-joint short. Two species have been

observed to differ in the form of the last ventral segment in the two sexes (P. puellus

and P. sublucidus), while a third (P. glandifer) has a pubescent fovea in the propleural

triangle which may be peculiar to the female.

The great increase in the number of species renders the table given by de Bonvouloir

entirely insufficient, there being now more known from the Central-American fauna than

are contained in his monograph.

The following Table is presented as a brief synopsis of the Central-American species

at present known :—

Third joint of the antenne much longer than either the second or fourth . 2.

Third joint of the antennz scarcely longer than the second and shorter than

the fourth . . . .. ss ee Loe soe 8.

2. Antennal groove indistinct, punctured similarly to the propleural

triangle . . .. woe ee ee . 8.

Antennal groove distinct, smooth and shining i in its entire length . 4

3. Propleural region densely punctured and subopaque ... . . pectoralis.

Propleural region not densely punctate, more or less shining. 7

Interocular ridge feebly elevated, broadly interrupted ; punc-

tures of the propleure closer than their own diameters: . . ligniperda. |

Interocular ridge distinctly elevated, narrowly interrupted ;

punctures of the propleurze more distant. . . . paganus.

4, Fourth joint of the antennz more than half as long as the fifth and

longer than wide . . . . . . . 5.

Fourth joint of the antenne scarcely longer than wide, and not half

aslongasthe fifth .« . . 2. 2... ee eee ee UCD

5. Interocular ridge interrupted ; species usually piceous. . . . . 6.

Interocular ridge entire, well elevated ; species ferruginous . . 9.

6. First joint of the hind tarsus not longer than the others combined,

usually shorter ; claw-joint long and slender, the claws simple . 7.

First joint of the hind tarsus distinctly longer than the others com-

_ bined; claw-joint short, claws toothed or dilated at the base... 10.

7. Clypeus nearly as wide at the base as the distance to the eyes.

Thorax densely punctured . . . . . . + «ss « « Confeederatus.

Thorax not densely punctured, intervals smooth . . . . . mandibularis.

Clypeus much narrower at the base than the distance to the eyes.

Interocular ridge scarcely elevated, broadly interrupted at

the base of the clypeus; antennz very long (<3) ; oe

obsoletely or not striate . . . . . longicornis.

BIOL, CENTR.-AMER., Coleopt., Vol. III, Pt. 1, November 1390. 2H

234 SERRICORNIA.

Interocular ridge distinctly elevated, nearly entire ; elytra very

distinctly striate.

Propleural triangle punctate along the inner border only ;

thorax not very coarsely punctate . . . . . . . %inutilis.

Propleural triangle distinctly punctate; thorax coarsely

and closely punctate (a pubescent fovea at the apex of

the propleural triangle 9, sexual?) . . . . . glandifer.

8. Thorax densely punctate, species opaque; first joint of the hind

tarsus shorter than the following joints together. . . . opaculus.

9. Thorax densely punctate, propleural triangle also ; first joint of the

hind tarsus longer than the following joints together.

Second joint of the antenne very short, less than half as long

asthe fourth. . . ..... . « émperitus.

Second joint of the antennz in its entire > length but little

shorter than the fourth . .. . soe ew . . badius.

10. Thorax densely punctate and subopaque ; propleural triangle densely

punctate.

Claws broadly toothed at the base; form slender. . . . . elongatus.

Claws broader but not toothed ; form subcylindrical. . . . puellus.

11. Antenne not greatly different in length in the sexes; last ventral

segment entire g, oremarginate 9 . . . . . .. . . . sublucidus.

1. Plesiofornax pectoralis.

Oblong, moderately convex, piceous, slightly shining, sparsely clothed with short fulvous pubescence: antennz

ferruginous, half ( 2) or three fourths (3) the length of the body, slender, joint two very small, third

with second nearly as long as the first, fourth more than half as long as the third, third to the eleventh

gradually longer; head convex, closely, not roughly punctate, slightly flattened near the clypeus, with a

faint longitudinal impression, which extends faintly on the clypeus, this very narrow at the base, less than

half the distance to the eye, interocular ridge not elevated ; thorax wider at the base than long, arcuately

narrowed to the front, disc convex, a slight punctiform impression each side of the middle of the base, a

vague oblique impression each side and a slight median impression near the base, surface closely simply

punctate ; elytra parallel for a short distance near the base, then narrowed to the apex, finely striate,

intervals rather sparsely and much more finely punctate than the thorax ; prosternum sparsely punctate,

propleural triangle very densely punctate even to the thoracic margin ; abdomen more coarsely punctate

near the base, more finely and densely towards the apex ; legs piceous, first joint of the hind tarsus shorter

than the others together, claws simple.

Length 7°5-11-5 millim.

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).

The female is of more robust form, and has the frontal impression indistinct, and the

antenne shorter and stouter.

2. Plesiofornax ligniperda.

Plesiofornax ligniperda, de Bonv. Mon. p. 462, t. 22. fig. 8°.

Hab. Mexico, Cordova, Toxpam (Sallé1).—Gutana, Cayenne’.

PLESIOFORNAX. 235

Similar to the preceding, but the propleure are less densely punctate and more

shining. The legs are ferruginous and the entire surface is more decidedly punctate.

3. Plesiofornax paganus.

Oblong, piceous-brown, moderately shining, sparsely clothed with short semi-erect fulvous pubescence :

antenne ferruginous, formed as in P. pectoralis, but a little shorter in both sexes; head convex, coarsely

and densely punctate, especially in front, impressed at the base of the clypeus, interocular carina well

elevated, narrowly interrupted at the base of the clypeus, this narrow, less than half the distance to the

eye ; thorax broader than long, sides nearly straight, convergent to the apex, arcuate near the front angles,

disc moderately convex, a punctiform impression each side of the middle of the base, where there is a

vague triangular flattening enclosing a short smooth line, surface coarsely, rather closely punctate, not

rugose ; elytra as in P. pectoralis, not closely punctate ; propleural triangle coarsely punctate, punctures

at least as distant as their own diameters and continuing to the margin of the thorax; legs ferruginous,

femora paler, first joint of the hind tarsus shorter than the others united, claws simple.

Length 7°5-10°5 millim.

Hab. Guatemaa, El Tumbador 2500 feet (Champion).

Differs from either of the preceding species in having the interocular carina nearly

entire.

4. Plesiofornax confederatus.

Plesiofornax confeederatus, de Bonv. Mon. p. 472, t. 23. fig. 4’.

Hab. Mexico, Cordova (Sal/é 1).

5. Plesiofornax mandibularis.

Plesiofornax mandibularis, de Bonv. Mon. p. 474, t. 23. fig. 5°.

Hab. Mextco, Cordova (Sal/é*).

De Bonvouloir separates these two species on the form of the mandibles, the rugose

face being in the former narrow and in the present broad; but with the types before

me this seems entirely illusory. They do differ in the punctuation of the thorax—in

the present species less dense with smooth intervals, and in P. confederatus dense and

crowded. |

6. Plesiofornax longicornis. .

Oblong, piceo-castaneous, shining, sparsely clothed with fulvous pubescence: antenne (¢) more than three

fourths the length of the body, slender, ferruginous, formed as in P. pectoralis, the third joint longer than

the fourth ; head convex, coarsely punctate, densely anteriorly, less closely posteriorly, interocular carina

distinct but not entire, clypeus at the base half as wide as the distance to the eye; thorax wider than

long, sides feebly arcuately narrowing from the base to the apex, disc convex, rather sparsely and finely

punctate ; elytra obsoletely or not at all striate, finely and not closely punctate ; propleural triangle finely,

not closely punctate, the antennal groove deep and smooth; entire body beneath rather finely, not closely

punctate ; legs ferruginous, first joint of the hind tarsus not so long as the others united, claw-joint

slender and long, claws simple.

Length 12 millim.

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).

2H 2

236 SERRICORNIA.

While not notably different in form, this species differs from all those with long

antenne by the almost complete obliteration of the elytral striez. ‘Two males have

been seen.

7. Plesiofornax inutilis.

Oblong, piceous-black, shining, scarcely pubescent : antenne slender, ferruginous, a little longer than half the

body (¢), formed as in P. pectoralis; head convex, closely coarsely punctate, a triangular depression in

front, the interocular ridge well elevated, nearly entire, merely slightly notched at the base of the

clypeus, which is less than half as wide as the distance to the eye; thorax wider at the base than long,

sides arcuately narrowing to the front, disc moderately convex, punctuation moderately coarse, but with

smooth intervals ; elytra striate, intervals flat, much more finely punctate than the thorax and not closely ;

propleural triangle punctate at the inner side and base, the larger part of its area smooth; body beneath

piceous, the margins of the ventral segments paler; abdomen rather closely punctate ; legs ferruginous,

first joint of the hind tarsus shorter than the others together, last joint long and slender, claws simple.

Length 7-8 millim.

Hab. Nicaracua, Chontales (Belt) ; Panama, Bugaba (Champion).

This species might be taken for a small P. pectoralis; but the punctuation of the

thorax beneath will readily separate it.

8. Plesiofornax glandifer.

Oblong, moderately robust and convex (?), piceous, slightly shining, very sparsely pubescent: antenne

ferruginous, not as long as half the body, the joints having the same relative length as in P. pectorals,

but shorter; head convex, coarsely and closely punctate, a slight concavity near the clypeus, interocular

carina well elevated, not extending across the clypeus, but continued by a smooth line, clypeus narrower at

the base than half the distance to the eye ; thorax broader at the base than long, sides arcuately narrowed

from the hind angles to the front, disc convex, a slightly elevated, short, median smooth line posteriorly,

surface coarsely and closely punctate; elytra faintly striate, the intervals much more finely punctate

than the thorax and rather sparsely, sides parallel, narrowed at the apical third; propleural triangle

punctate sparsely over its entire surface, and with a large oval pubescent fovea in the front angle; body

beneath brown, abdomen rather closely punctate; legs brown, first joint of the hind tarsus shorter than

the others together, the claw-joint slender and long, claws simple.

Length 10 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

It is possible that the propleural fovea is sexual. One female specimen seen.

9. Plesiofornax opaculus.

Oblong, moderately convex, piceous, opaque, sparsely clothed with short reddish-brown pubescence: antenne

slender, ferruginous, three fourths the length of the body (<¢), first joint nearly as long as the next

three, second small, third scarcely longer, joints 3-11 successively longer ; head convex, front rather flat,

densely subrugosely punctate, interocular carina finely elevated, broadly interrupted, clypeus nearly half

as wide at the base as the distance to the eye; thorax much wider at the base than long, sides arcuately

narrowing to the front, disc moderately convex, densely rugosely punctate; elytra gradually narrowed

from the base, distinctly striate, intervals flat, densely submuricately punctate, with a tendency to

form transverse strige ; body beneath more shining than above, densely punctate; propleural triangle

densely punctate, the antennal groove distinct but sparsely punctate ; legs brownish, first joint of the hind

tarsus not so long as the others together, the claw-joint long and slender, claws simple.

‘Length 7:5-9 millim.

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

PLELSIOFORNAX. 237

This species is easily known by its opaque surface, and by the short third joint of

the antenne. Only males have been seen. |

10. Plesiofornax imperitus.

Oblong, moderately convex, ferruginous or brown, subopaque, sparsely clothed with fulvous pubescence :

antenne slender, two-thirds as long as the body, second joint very short, less than half as long as the

fourth, third and fifth equal, joints 4-11 increasing in length; head convex, densely rugosely punctate,

interocular carina moderately elevated, continuous across the base of the clypeus, this less than half as

wide as the distance to the eye; thorax wider than long, sides straight, slightly convergent, arcuate near

the apex, disc moderately convex, a faint median impression near the base, surface densely, moderately

coarsely punctate, not rugose; elytra striate, closely punctate, less coarsely than the thorax, slightly

transversely wrinkled at the base ; propleural triangle densely subrugosely punctate, the antennal groove

shining but obsoletely punctate ; abdomen densely finely punctate ; legs paler, the first joint of the hind

tarsus not so long as the others united, the claw-joint long and slender, claws simple.

Length 8-9°5 millim.

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

An inconspicuous species allied to P. badius by its entire interocular carina, but

differing especially in the form of the antenne.

11. Plesiofornax badius.

Oblong, moderately convex, pale castaneous, subopaque, indistinctly fulvo-pubescent : antenne slender, ferru-

ginous, as long as half the body, the joints formed relatively as in P. pectoralis; head convex, a vague

concavity anteriorly, densely rugosely punctate, interocular carina well marked, extending across the

base of the clypeus, this less than half as wide as the distance to the eye; thorax wider than long, sides

arcuately narrowing nearly from the hind angles, disc moderately convex, a short, smooth, median line

posteriorly, surface densely not deeply punctate, somewhat rugose near the front angles; elytra narrowed

nearly from the base, distinctly striate, intervals flat, submuricately punctate, sparsely near the apex, more

closely near the base; body beneath a little paler than above, rather densely punctate; propleural triangle

densely punctate, the groove smooth; legs ferruginous, the first joint of the hind tarsus scarcely so long as

the other joints united, the claw-joint slender and long, claws simple.

Length 8 millim.

Hab. Panama, Bugaba (Champion).

In general appearance very like some of the species of Yornax, and by this as well

as by the well-marked entire interocular carina it is known from all the preceding

species.

12. Plesiofornax elongatus.

Elongate, subcylindrical, narrower posteriorly, ferruginous-brown, feebly shining, sparsely pubescent : antenne

slender, two-thirds as long as the body, the joints formed as in P. pectoralis ; head convex, front slightly

flattened, densely and subrugosely punctate, interocular carina moderately elevated, interrupted at the

base of the clypeus, which is more than half as wide as the distance to the eye; thorax wider at the base

than long, sides parallel for a short distance behind, then arcuately narrowed to the front, dise mode-

rately convex, densely subrugosely punctate; elytra narrowed nearly from the base, striate, intervals flat,

densely submuricately punctate and somewhat transversely wrinkled on the basal half; propleure:densely,

subrugosely punctate, the antennal groove narrow; abdomen densely and rather finely punctate ; legs

238 SERRICORNTA.

paler ferruginous, first joint of the hind tarsus distinctly longer than the following joints together, the

claw-joint short, claws broadly toothed at the base.

Length 6-8°5 millim.

Hab. GuaTEMALA, Cerro Zunil (Champion).

This species is readily known by its elongate form, pale colour, and toothed claws.

The last ventral segment of the male has the usual acutely oval form at the apex.

13. Plesiofornax puellus.

Oblong, subcylindrical, moderately convex, piceous-brown, subopaque, sparsely clothed with fulvous pubes-

cence: antenne ferruginous, half as lung as the body and slender ( ¢ ), shorter and subserrate (@ ), the

joints having the same proportions as in P. pectoralis ; head convex, densely subrugosely punctate, a short

frontal carina, on each side of which is a vague depression, interocular carina not elevated, interrupted

by the base of the clypeus, which is narrower than half the distance to the eye; thorax scarcely wider

than long, sides parallel, arcuate at the apical third, disc moderately convex, a short oblique impression

at each side of the middle of the base, between these a slight tuberosity, surface very densely punctate,

slightly rugose at the sides ; elytra striate, intervals closely submuricately punctate, somewhat transversely

wrinkled near the base; propleure coarsely and deeply, not densely punctate; abdomen densely punc-

tate; legs paler ferruginous, first joint of the hind tarsus as long as or slightly longer than the others

together, claw-joint rather short, claws broader at the base but not rectangularly toothed.

Length 5°5-7 millim.

Hab. Guatemaua, Volcan de Atitlan 2500 to 3000 feet (Champion).

The last ventral segment is obtusely oval at the tip in the male, truncate and broadly

emarginate in the female. This insect might readily be mistaken for a Fornax of the

adjectus series.

14. Plesiofornax sublucidus.

Plesiofornax sublucidus, de Bonv. Mon. p. 464, t. 22. fig. 9°.

Hab. Nicaragua (Sallé), Chontales (Belt, Janson); Panama, Bugaba, Volcan de

Chiriqui (Champion).— Guiana, Cayenne!; Amazons, San Paulo!, Ega!.

At first glance the facies of this insect is very like that of many Melanoti. It differs

from all the preceding species in having the fourth antennal joint short, scarcely longer

than wide, and not longer than the second joint. In the males the antenne are fully

half the length of the body, in the females shorter. The male last ventral segment is of

the usual oval form at the tip, while in the female the apex is emarginate, but variable

in degree. This sexual difference seems to have escaped de Bonvouloir, although the

figure by Migneaux faintly indicates it.

DYSCOLOTAXIA.

Antennal grooves deep, sharply limited, nearly half as wide as the triangle of the propleure, distinctly

narrowed by the eyes on the head. Antenn# slender, extending beyond the hind angles of the thorax;

first joint as long as the next three, second small, partly concealed by the first, third distinctly longer,

joints 4-7 nearly equal, broader than Jong, 8-10 slender, equal, each a little longer than 5-7 together,

eleventh slightly longer. Triangle of the propleure with the outer side distinctly but not greatly longer

DYSCOLOTAXTA.—DIPHYTAXIS. 239

than the posterior side. Posterior coxal plates almost triangular. Tarsi slender, the fourth joint pro-

longed in a lobe, the first joint of the hind tarsus longer than the others together. Claws not toothed.

From these characters it will be seen that this genus is essentially a Fornax with the

middle joints of the antenne small and equal, and with simple claws. This seems to

be the only instance among the genera with well-defined antennal grooves in which a

number of the middle antennal joints are small and equal.

1. Dyscolotaxia championi. (Tab. X. figg. 17; 174, antenna.)

Oblong, moderately convex, narrower posteriorly, piceous-brown, subopaque, inconspicuously fulvo-pubescent :

antenne entirely ferruginous; head densely and roughly punctate, interocular ridge entire, clypeus

arcuate in front, less than half as wide between the antenne as long; thorax nearly as long as wide ati

the base, arcuately narrowed from the base to the apex, disc convex, a short median impression at the

base, surface densely roughly punctate ; elytra striate, intervals closely roughly punctate, less so than the

thorax; body beneath densely punctate, abdomen pubescent ; legs paler than the general colour.

Length 6 millim.

Hab. Panama, Bugaba (Champion).

This insect has quite the facies of several species of Fornax found in the same region.

The generic characters will readily separate it.

DIPHYTAXIS.

Form oblong, rather robust, narrower posteriorly. Eyes large, narrowing the antennal grooves. Antenne

longer than the thorax, dissimilar in the sexes; joints 3-10 bearing a long branch (¢) or serrate (9 ).

Clypeus arcuate at the middle in front, the base broader than the distance to the eye. Antennal grooves

broad and deep, wider than the propleural triangle and not broadened in front (3), or equal to the

triangle and distinctly wider infront (2). Base ofthe propleural triangle (very small in the male) longer

than the inner side, the apex not reaching the edge of the prosternum. Metasternal episterna moderate,

sides parallel. Posterior coxal plates broadly dilated, triangular. First hind tarsal joint not so long as

the following joints united, the fourth excavate-emarginate. Claws broadly toothed at the base. Last

ventral segment slightly prolonged.

Male. Antenne with first joint stouter, arcuate, as long as the next four, second small, third very little longer

than fourth; joints 4-10 subequal in length, these (with the third) bearing each a branch three times as

long as the joint; eleventh joint nearly as long as four preceding joints. Propleural triangle small, the

apex reaching only two-thirds to the margin of the prosternum.

Female. First two joints of the antenne as in the male, third as long as the next two, joints 3-10 serrate,

eleventh nearly as long as the two preceding. Propleural triangle twice the area of that of the male,

the apex nearly reaching the margin of the prosternum.

This genus represents in our fauna Hodocerus of the Indian Archipelago, and differs

notably in the structure of the antenne, that genus having the second and third joints

both small. There is probably no genus in the entire family in which the antennal

grooves occupy so large a space on the propectus, unless it be Macraulacus, in which

the entire surface is excavated. The striking difference in the antenne in the sexes is

remarkable in a genus so closely allied to Fornax.

240 SERRICORNIA.

1. Diphytaxis excavata. (Tab. X. figg. 18, antenna, 2; 19¢.)

Oblong, subcylindrical, moderately convex, narrowed at the apical third of the elytra, brown, feebly shining,

sparsely clothed with short fulvous pubescence ; antenne, except the first joint, paler: thorax broader

than long, sides parallel for a short distance at the base, then arcuately narrowed to the apex, disc convex,

a smooth median line extending from near the base to the middle, base on each side of the middle broadly

but not deeply excavate, surface roughly (not coarsely) granulate ; elytra parallel, gradually narrowed at

the apical half, distinctly striate, intervals slightly convex, closely moderately punctate, more densely and

roughly at the base and for a distance along the sides ; body beneath somewhat paler than above, moderately

closely punctate, more finely and sparsely on the abdomen, sparsely fulvo-pubescent ; legs ferruginous.

Length 9-12°5 millim.

Hab. Guatemaa, Teleman, Cahabon, and Senahu in Vera Paz, El Reposo, San Isidro

(Champion).

HENECOSOMA.

Oblong, parallel, depressed, cylindrical. Antenne half as long as the body, slightly broader externally, flat-

tened, subserrate ; first joint as long as the next three, second small, third scarcely longer than the entire

second and very little longer than the fourth, joints 4-11 gradually longer, eleventh narrower than the

preceding. Clypeus arcuate at the apex, with an indistinct notch at the middle, narrower at the base

than half the distance to the eye. Mandibles exposing a broad rugose face, the posterior edge slightly

prolonged backward. Propleure without any trace whatever of an antennal groove, the lateral margin of

the thorax single and entire. Metasternal episterna moderate in width, parallel. Posterior coxal plates

widely dilated internally. Legs slender; posterior tarsi longer than the tibie, the first joint longer than

the following joints together, fourth small, excavate-emarginate ; claws simple. Last ventral segment

acutely oval at the tip, but not prolonged; last dorsal segment simple.

The characters given above define a genus which must be associated with the

Nematodes series, from the important structural details, while the facies makes it as

heterogeneous a member of the series as Hurachis is to its allies. By the scheme of

de Bonvouloir the nearest possible ally is Hypocelus, from which it differs in too much

of importance to require mention here.

1. Henecosoma discicolle. (Tab. X. fig. 20.)

Very black, opaque, clothed with short black pubescence ; thorax with a broad orange-yellow stripe on each

side, close to but not including the border, clothed with silken fulvous pubescence: head piceous or slightly

brown, fulvo-pubescent, densely, subgranulately punctate, front longitudinally impressed anteriorly, the

impression extending nearly the entire length of the clypeus, interocular ridge distinctly elevated, curved

around the inner border of the antennal fossa ; thorax a little broader at the base than long, sides straight,

slightly convergent, very slightly arcuate at the anterior angles, disc regularly convex, median line fine and

smooth, surface densely finely punctate and finely rugose ; elytra parallel, narrowed at the apical third;

finely striate, intervals flat, densely and finely submuricate ; body beneath black, less opaque than above ;

mesosternum sometimes brownish ; abdomen densely finely punctate, indistinctly cinereo-pubescent ; legs

black.

Length 6-8 millim.

Hab. Guatemaza, Sinanja in Vera Paz (Champion); Panama, Bugaba (Champion).

The only male specimen is the smallest of the series, and has the thorax entirely

orange-red. The species in form and colour resembles closely the North-American

Adelocera discoidea, or even some of the members of the genus Plateros.

EMATHION. 241

EMATHION.

Emathion, Guérin, Ann. Soc. Ent. Fr. 1843, p. 178 (ex parte) ; de Bonvouloir, Mon. des Eucnémides,

p. 637.

As restricted by de Bonvouloir, this genus differs from Nematodes in having the fourth

tarsal joint simple and not excavate-emarginate.

1. Emathion anxius.

Emathion anxius, de Bonv. Mon. p. 640°.

Hab. Mexico 1, Cordova (Sallé).—Gutana, Cayenne}.

Although this species differs less in the form of the clypeus than asserted by

de Bonvouloir, it may be known by the peculiar vestiture—a marmorate arrangement

in small patches of golden and brown pubescence.

2. Emathion leprieuri.

Galba Leprieuri, Cast. in Silberm. Rev. Ent. iui. p. 174°.

Nematodes (Metabletus) Leprieuri, Chevr. Ann. Soc. Ent. Fr. 1867, p. 595 °.

Emathion Leprieuri, de Bonv. Mon. p. 642°.

Emathion quadraticolle, Lucas, in Cast. Expéd. dans PAmér. du Sud, iii. p, 72°.

Hab. Mexico, Cordova, Playa Vicente (Sal/é)—Cotompia, Cartagena?; VuENE-

ZUELA?%; Gurana, Cayenne!; Braziu4; ANTILLES, Cuba 2°.

Rather more robust than Z. anxius, and with different vestiture.

3. Emathion intrusus.

Similar in form to E. lepriewri, but more robust: antenne reddish-brown, the second joint distinctly longer

than either the fourth or fifth, these together but little longer than the sixth ; clypeus at the base a little

wider than the distance to the eye; thorax longer than wide, with parallel sides, arcuately narrowed at

the front angles, disc slightly depressed, discal fovese very indistinct, median line rather deeply impressed

from a little before the base to two-thirds of the distance to the apex, from which point it becomes

evanescent, surface closely submuricately punctate, the intervals shining, at the sides opaque, more densely

punctate, the punctures forming strige, pubescence sparse, brown, inconspicuous; elytra vaguely striate,

more deeply at the apex, where the strie are coarsely punctured, intervals closely, submuricately punctate,

slightly shining, and with transverse strige: ; abdomen densely and more finely punctured than above, the

last segment much more coarsely at the tip, pubescence fine, fulvous.

Length 11 millim.

Hab. Nicaracva, Chontales (Belt).

While resembling /. lepriewrt in form and colour, it may be known at a glance by

the comparatively shining surface, owing to the less dense punctuation.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1890. 2I

249 SERRICORNIA.

NEMATODES.

Nematodes, Latreille, Fam. Nat. p. 248 (1825) ; de Bonvouloir, Mon. des Eucnémides, p. 644.

Spherocephalus, Eschscholtz, in Silberm. Rev. Ent. iv. p. 4 (1836).

_ The species of this genus are quite readily recognized by their facies ; this, together

with the acute prolongation of the last ventral segment and the excavate-emarginate

fourth tarsal joint, will enable them to be separated almost at a glance.

1. Nematodes mexicanus.

Galba mexicana, Cast. in Silberm. Rev. Ent. iii. p. 174".

Nematodes mexicanus, de Bonv. Mon. p. 648, t. 31. fig. 3”. .

Hab. Merxico1, Cordova?, San Andres?, Playa Vicente ? (Sallé), Cerro de Plumas,

Jalapa (Hége), Atoyac in Vera Cruz (H. H. Smith); British Honpuras, R. Sarstoon

(Blancaneaux) ; GuateMaa, Yzabal, Panzos, Teleman, Chacoj, and Cubilguitz in Vera

Paz, Zapote (Champion); Costa Rica, Volcan de Irazu (Rogers); Panama, Bugaba

(Champion).

This species is known by the presence of a short but distinct carina limiting the

antennal depression distinct from the lateral margin. A variety litigiosus has been

described from Cayenne which has not been observed within our limits.

2. Nematodes mannerheimi.

Nematodes Mannerheimii, de Bonv. Mon. p. 651, t. 31. fig. 4°.

Hab. Mexico, Cordova!, Playa Vicente !, Santecomapan (Sal/é), Cerro de Plumas

(Hoge); Panama, Tolé (Champion).

Similar to WV. mexicanus, but without the short carina, and differs from the next by

having an indication of a carina at the inner angle of the antennal fovea.

3. Nematodes cuneatus.

Emathion cuneatum, Guérin, Ann. Soc. Ent. Fr. 18438, p. 179°.

Nematodes cuneatus, de Bonv. Mon. p. 655’.

Hab. Mexico, Cordova (Sallé?); Nicaraeua, Chontales (Belt); Costa Rica, Cache

(Rogers); GuatEMALA, Teleman in Vera Paz (Champion); Panama, Bugaba, Volcan de

Chiriqui, Tolé (Champion).—Gutana, Cayenne”; Amazons, Ega?; Braziu?, Bahia?.

The elytra vary in sculpture, and may be faintly or not striate. In size it varies

from 7 to,15 millim.

4, Nematodes atropos.

Eucnemis atropos, Say, Trans. Am. Phil. Soc. vi. p. 187.

Emathion atropos, Lec. Proc. Acad. Phil. vi. p. 47; Trans. Am. Phil. Soc. x. p. 414.

NEMATODES.—TRIGONOPLEURUS. 243

Nematodes atropos, de Bonv. Mon. p. 656, t. 81. fig. 6’; Horn, Trans. Am, Ent. Soc. 1886,

p. 41°.

Hab. Norta America 1, Canada to Louisiana 2.—MeExico, Cordova! (Saidé).

A single specimen of this species from the Sallé collection so labelled by de Bon-

vouloir seems to differ in some details from North-American examples; but with the

known variability of the members of the genus it would be unsafe to consider

it distinct.

5. Nematodes biarti.

Nematodes Biarti, de Bonv. Mon. p. 669, t. 32. fig. 4°.

Hab. Mexico, Orizaba (Biart '), Jalapa (Hodge).

Easily known by the joints 7-9 of the antenne being as broad as long.

6. Nematodes cylindricus.

Emathion cylindricum, Cast. in Silberm. Rev. Ent. iii. p. 171+; Hist. Nat. Col. i. p, 225%.

Nematodes cylindricus, de Bonv. Mon. p. 676, t. 32. figg. 7, 8°.

Hab. Nicaracva, Chontales (Belt); Panama, Volcan de Chiriqui (Champion).—VENE-

ZUELA, Caracas? ; Gurana, Cayenne2?; Amazons, Ega?; Braziu, Bahia 2°.

Of this species de Bonvouloir remarks that it is one of the most variable, and

very difficult to accurately define. It belongs to a small group without trace of

elytral strie.

TRIGONOPLEURUS.

Trigonopleurus, de Bonvouloir, Mon. des Eucnémides, p. 681 (1870).

Closely related to Nematodes, but with the metasternal episternum much narrowed

in front. The two species known agree in having the fourth and fifth joints of the

antenne very small and equal, together shorter than either the third or sixth.

1. Trigonopleurus alienus.

Subcylindrical, moderately elongate, parallel, piceous-black, opaque, sparsely clothed with a short, indistinct,

cinereous pubescence: antenne piceous, a little longer than the thorax; head convex, densely coarsely

punctate, a very short carina in front; thorax longer than wide, slightly wider at the apical third than at

the base, sides straight, arcuately narrowed in front, disc convex, an acutely impressed line extending from

the basal margin one third towards the apex, surface densely rather asperately punctate ; elytra finely

striate, intervals flat, closely roughly punctate, less so than the thorax ; body beneath piceous-black, cinereo-

pubescent, closely punctate, more coarsely on the abdomen ; femora piceous, tibie and tarsi brown.

Length 5 millim.

Hab. Panama, Tolé (Champion).

The only other known species of the genus is said to be from Victoria, N.S.W.*,

which differs from this in colour and in the presence of a long carina on the front.

* This locality requires confirmation: Gemminger and Harold, Cat. v. p. 1479, give “Amer. bor. ;” but the

genus is not known to me from temperate North America.

212

244 SERRICORNIA.

DIAPODIUS.

Diapodius, de Bonvouloir, Mon. des Eucnémides, p. 785 (1870).

To this genus, represented hitherto by two species, one from Singapore and one from

Malacca, an insect from Chontales is referred. A comparison might show characters

of generic value, but from the details given by de Bonvouloir, even some that are

specific, there seems to be an agreement.

1. Diapodius bicolor.

Oblong, cylindrical, slightly narrowed behind, shining black above ; metasternum, abdomen, and legs ferrugi-

nous ; pubescence sparse and inconspicuous, cinereous on the thorax and base of the elytra, black behind :

antenne black, not serrate, first joint coarsely punctured and transversely strigose, third joint longer than

the next two; head (seen laterally) concave, the supra-antennal ridges strongly elevated, the cavities

beneath large, front rather deeply impressed at the base of the clypeus, this much narrower at the base

than the distance to the eye, surface rather coarsely punctured, the punctures forming close transverse

strige; thorax longer than wide, sides straight and parallel, apex (seen from above) nearly semicircular,

median line deeply impressed at the base, extending two-thirds to the apex and becoming gradually more

shallow, disc regularly convex, with coarse transverse strige, which are finely punctured along their posterior

border ; elytra with vague traces of strie near the humeri and close to the basal margin, surface more

shining than the thorax, along the middle sparsely finely punctate, at the sides and base more roughly,

the punctures tending to form strige; prothorax beneath coarsely, not closely punctate, the antennal

groove moderately deep and smooth ; metasternum finely punctate, the punctures forming transverse strige ;

posterior coxal plates extremely finely punctured ; abdomen finely, sparsely punctured at the middle, more

coarsely at the sides, last segment near the apex obtusely compresso-carinate, the summit of the carina

obtusely spinous, the sides coarsely muricate, apex of the segment narrowly prolonged, obtuse at the tip.

Length 14 millim.

Hab. Nicaraeva, Chontales (Belz).

The description has been extended to enable comparison to be made with the other

species of Diapodius. At first glance the above species resembles a rather stout

Nematodes cylindricus.

PHLEGON.

Phlegon, Castelnau, Hist. Nat. Ins. Col. i. p. 254 (1840) ; de Bonvouloir, Mon. des Eucnémides,

p. 746.

Euryptychus, Leconte, Proc. Acad. Phil. vi. p. 186.

1. Phlegon viduus. (Tab. X. fig. 21.)

Oblong elongate, rather feebly convex, black, opaque, sparsely pubescent: antenne black, stouter towards the

tip, the last three joints equal to all the preceding, excluding the first ; head densely punctured, clypeus

but little wider at the base than half the distance to the eye; thorax broader than long, sides arcuately

narrowing to the apex, hind angles slightly divergent, disc regularly convex, a median smooth line

extending from the base one third towards the apex, surface densely punctured ; elytra a little wider than

the thorax, finely striate, intervals slightly convex, densely punctured and opaque ; body beneath opaque

black, densely punctured, sparsely pubescent; legs piceous-black.

Length 8 millim.

Hab. Mexico, Oaxaca (Hoge); Guatemala, Guatemala city (Rodriquez).

This species has quite a different facies from either of the North-American ones. It

PHLEGON.—ENTOMOPHTHALMUS., 245

agrees with them in having the fourth tarsal joint simple. It is quite probable that

these species should be separated generically from P. buqueti, as de Bonvouloir asserts

in his table and text that the fourth tarsal joint is excavate-emarginate, having probably

used the latter species as his type. In this case Hwryptychus will be valid.

ANELASTES.

Anelastes, Kirby, Trans. Linn. Soc. xii. p. 3884 (1818); de Bonvouloir, Mon. des Eucnémides,

p. 710.

Silenus, Latreille, Ann. Soc. Ent. Fr. 1834, p. 128.

This is one of the few genera at present admitted to the family which help to make

its definition difficult. From all those occurring in our faunal limits it will be known

by the very abruptly narrowed posterior coxal plates.

1. Anelastes druryi.

Anelastes Druryi, Kirby, Trans. Linn. Soc. xii. p. 384, t. 21. fig. 2'; Guérin, Ann. Soc. Ent. Fr.

1843, p. 177°; Lec. Trans. Am. Phil. Soe. x. p. 413°; de Bonv. Mon. p. 713‘; Horn, Trans.

Am. Ent. Soc. 1886, p. 49’.

Elater erosus, Say, Ann. Lyc. N. York, i. p. 258°.

Silenus brunneus, Latr. Ann. Soc. Ent. Fr. 1834, p. 1297.

Anelastes Latreillet, Lec. Proc. Acad. Phil. vi. p. 47°; de Bonv. Mon. p. 713, t. 34. fig. 7°.

Hab. Nortu America? °®, Vancouver ®®, Canada®, Atlantic region 5, United States 4’,

California * 9.—Mexico°, Ciudad in Durango (forrer, Hoge), Ventanas and Refugio in

Durango (fHége), Juquila, Chiapas (Sallé); Guatemaua, Guatemala city (Champion).

Two forms have been separated by Leconte and admitted by de Bonvouloir,—

A. druryi being more opaque and A. latreillei more shining. The former is charac-

teristic of the more southern portions of the United States, while the latter is peculiar

to the western regions, especially those bordering the Pacific. The two forms occur

within our fauna and closely intergrade.

ENTOMOPHTHALMUS.

Entomophthalmus, de Bonvouloir, Mon. des Eucnémides, p. 513 (1870).

The species of this genus have a facies separating them at a glance from Micro-

rhagus. The very small second and third joints of the antenne will at once enable

them to be distinguished.

1. Entomophthalmus americanus.

Entomophthalmus americanus, de Bonv. Mon. p. 516 -

Hab. Panama, Volcan de Chiriqui (Champion).—CotomBiaA!; Braziu!; Prrv.

The individuals examined by de Bonvouloir were evidently all males. This sex has

246 SERRICORNIA.

the antenne three fourths, or even more, of the length of the body, while in the female

they are stouter and but little more than half the length of the body. On the last

ventral segment there is a small smooth tubercle near the middle in the male, while the

female has an oval pubescent fovea.

2. Entomophthalmus minutus.

Entomophthalmus minutus, de Bonv. Mon. p. 521°.

Hab. Panama, Bugaba (Champion).—Brazit, Santa Catarina}.

Similar in form to the preceding, but with the incisure of the eye much smaller.

The colour is piceous-brown, the head and apex of the thorax more reddish, the suture

of the elytra and apical third are also paler than the remainder of the surface. One

male specimen with the last ventral segment as in £. americanus.

3. Entomophthalmus asper.

Moderately elongate, very little narrowed behind, piceous-black, feebly shining, indistinctly pubescent; head

and anterior border of the thorax reddish-brown: antenne piceous, subserrate, third joint very small,

closely applied to the base of the fourth and not easily seen; head convex, densely coarsely punctate ;

eyes emarginate in a broad triangle, which does not attain the middle; thorax nearly square, slightly

broader at the base than at the apex, disc convex, densely punctate, and subopaque, hind angles with a short

but strong carina, anterior inferior supplementary line entire, the superior line very short, posterior inferior

line long, nearly reaching the apical margin; elytra obsoletely striate, the intervals relatively coarsely

transversely rugose, especially near the base; body beneath piceous, abdomen brown, moderately coarsely

and closely punctate; legs ferruginous, middle and posterior femora darker.

Length 4 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

This is the only known species with the elytra roughly sculptured. The antenne

apparently resemble those of EL. fugax. One male specimen has been seen, which has

the small tubercle on the middle of the last ventral segment.

MICRORHAGUS.

Microrhagus, Eschscholtz, in Silberm. Rev. Ent. iv. p. 4 (1836); de Bonvouloir, Mon. des Eucné-

mides, p. 524.

Dirhagus, Latreille, Ann. Soc. Ent. Fr. 1834, p. 180.

Rhacopus, Hampe, Verh. zool.-bot. Ges. Wien, v. p. 255.

Aulacosternus, Motschulsky, Bull. Mosc. i. p. 116.

The species contained in Microrhagus are, on the whole, the smallest of the Eucne-

mide, and from their generally uniform facies of difficult study. The industry and

acute observation of de Bonvouloir have produced results almost beyond criticism, one

point alone needing serious remark. The fovea on the last or on the penultimate ventral

segment is purely a female character and should not have been used in a table for the

separation of species.

species.

MICRORHAGUS.

front, as is usual in Entomophthalmus.

Owing to the great increase of the number of species in our fauna, it has been

deemed advisable to present their more striking characters in tabular form to assist in

their identification.

10.

. Posterior coxal plates distinctly wider internally .

Posterior coxal plates parallel-sided

. Metasternal episterna very narrow or partly concealed in front,

broader behind

Metasternal episterna parallel- sided

Outer carina of the juxta-sutural groove entire an

Outer carina of the juxta-sutural groove obliterated behind

Eyes entire ; species piceous-black

Eyes triangularly incised in front

. Clypeus nearly as wide at the base as the distance to the eyes ;

antenne (¢) not pectinate a

Clypeus very narrow at the base; antenne ( ') pectinate.

Thorax carinate at the middle near the base .

Thorax not carinate, disc less densely punctured

. Black; head reddish; thorax dark brown, with median and lateral

lines of pubescence more distinct

Piceous-brown ; elytra indefinitely rufescent at the tip and sometimes

along the suture .

. Eyes large, nearly as wide as the front between them

Eyes small, normal ; thorax bicoloured ; antenne long .

. Colour rufo-testaceous .

Colour piceous-brown ; apical margin of the thorax and the base and

suture of the elytra red en

Eyes incised in front; antenne () pectinate

Eyes entire ; antenne (}) serrate.

Propleure densely punctate; outer carina of the groove oblite-

rated behind . . : . .

Propleure sparsely punctate, shining; ; outer carina of the

groove entire; groove very narrow . .

elytra reddish-brown .

Outer carina of the propleural groove abbreviated behind.

Elytra red at the basal third .

Head and thorax reddish-brown .

Outer carina of the propleural groove entire ;

Two important characters have been observed in species described

below which would hardly have escaped him had they existed in the then known

In two of them (M. marcidus and M. protractus) the eyes are much larger

than usual, so that the front between them is comparatively narrow; while in three

species (MM. ruficeps, M. frenatus, and M. maculicollis) the eyes are distinctly incised in

sepositus.

repandus.

intrusus.

frenatus.

ruficeps.

marcidus.

protractus.

maculicollis.

elatus.

insidiosus.

meticulosus.

humeralis.

thoracicus.

248 ° SERRICORNIA.

1. Microrhagus unicus.

Microrhagus unicus, de Bonv. Mon. p. 575, t. 27. fig. 8°.

Hab. Mexico, Teapa (coll. Chevrolat').

This species has a moderately wide clypeus at the base, the antenne of the male

pectinate, the propleural groove rather wide behind, its outer carina obliterated poste-

riorly, and the elytra distinctly striate.

No specimens have been seen by us.

2. Microrhagus sepositus.

Cylindrical, moderately convex, piceous-black, shining, indistinctly clothed with short fulvous pubescence:

antenne brown, half as long as the body, strongly serrate from the fourth joint; head convex, neither

carinate nor impressed, closely punctate, not rugose except on the occiput, clypeus wider at the base than

the distance to the eye; thorax a little wider than long, sides straight and parallel, rounded at the front

angles, disc convex, a very faint indication of a median impression, an oblique impression each side of the

middle of the base, surface coarsely and closely punctate, not rugose, more finely at the apex; elytra

almost absolutely without strie, the sutural stria very short and apical, surface moderately closely punc-

tate, dense and subrugose at the base, more sparse at the apex, where several of the intervals are acutely

granulate; posterior supplementary line of the propleure extending halfway to the apex, outer carina

of the groove entire; abdomen moderately closely punctate; legs piceous, tibie and tarsi sometimes

ferruginous.

Length 3°5 millim.

Hab. Guarmmata, San Juan in Vera Paz (Champion).

According to the table by de Bonvouloir, this species is closely related to

M. pyrenceus, which, however, has the elytra more or less striate and the base and

suture rufescent. ,

3. Microrhagus repandus.

Cylindrical, moderately convex, narrowed behind in both sexes, piceous-black, shining, very sparsely pubescent,

the cinereous pubescence quite conspicuous at the sides and base of the thorax and at the basal third of

the elytra ; antennee piceous, a little longer than half the body in both sexes, joints 3-10 pectinate (3),

the branches one half longer than the joint, serrate (Q ), the joints but little longer than wide at the

apex; head densely subrugosely punctate, not carinate or impressed, eyes entire, clypeus very narrow at

the base; thorax subquadrate, nearly as long as wide, sides with a slight sinuation at the middle, arcuately

narrowed near the apex only, disc convex, slightly depressed in front of the hind angles, a carina at the

middle near the base, usually well elevated, surface very coarsely closely punctate but not rugose; elytra

usually very indistinctly striate, intervals muricately punctate, densely and roughly at the basal third, more

sparsely towards the apex; propleural groove deep and parallel, the outer edge sharp and entire, the

posterior supplementary line extending two-thirds to the apex; body beneath piceous-black, shining,

abdomen rather coarsely and closely punctate; legs ferruginous, the femora sometimes infuscate.

Length 3-3°5 millim.

Hab. GuateMaLa, San Juan and Chiacam in Vera Paz, El Reposo, San Isidro

(Champion); Panama, Bugaba, Volcan de Chiriqui, Caldera, Tolé (Champion).

This species is evidently related to M. amazonicus, but is smaller, and differs in the

rougher sculpture at the base of the elytra and other minor details. De Bonvouloir does

MICRORHAGUS. 249

not mention the sex of the specimens he describes ; it is therefore presumable that the

males of M. amazonicus do not have pectinate antenne. One male specimen before me

from San Isidro agrees with the typical forms above described, except that the thoracic

carina is replaced by a short smooth line. It does not seem advisable to separate it.

4. Microrhagus intrusus.

Closely related to M. repandus, differing only in the following details :— Thorax coarsely punctate with distinct

smooth intervals between the punctures, at the base without trace of a median carina; antenne (¢)

pectinate, the branches at least three times longer than the joint, ( 2 ) strongly serrate, the joints at the

apex wider than long.

Length 3 millim.

Hab. Guatemata, Chacoj (Champion); Panama, Bugaba (Champion).

5. Microrhagus frenatus. (Tab. X. fig. 22, ¢.)

Cylindrical, moderately convex, narrowed posteriorly, feebly shining; head reddish, thorax dark brown, elytra

piceous-black ; surface pubescent, that of the thorax yellowish-cinereous, darker along either side of the

middle, that of the elytra dark on the disc, cinereous along the side margin: antenne piceous, longer than

half the body, slightly serrate ; head convex, closely subrugosely punctate, not carinate or impressed, clypeus

narrower at the base than half the distance to the eyes, these triangularly excised in front; thorax

quadrate, very little wider than long, sides straight and parallel, arcuate at the front angles only, disc

convex, depressed in the region of the hind angles, a punctiform impression each side of the middle of the

base, between these an obtuse elevation, surface densely but not coarsely rugosely punctate; elytra very

vaguely striate, the intervals subgranulately punctate, rugose at the base ; propleural groove much broader

behind, its outer carina entire, the posterior inferior carina extending two-thirds to the apex; body

beneath piceous; abdomen densely, moderately coarsely punctate ; legs entirely piceous.

Length 3 millim.

Hab. Guatemaa, Zapote (Champion).

An easily known species by its colour above and by the trivittate arrangement of

the pubescence on the thorax. There does not seem to be any described species

particularly related to it. The unique male has a small tubercle at the middle of the

last ventral segment.

6. Microrhagus ruficeps.

Cylindrical, narrower posteriorly, moderately convex, piceous-brown, shining, sparsely clothed with short

fulvous pubescence, antenne, head, apex of the thorax, apex and often the suture of the elytra, and legs

rufescent: antenne as long as (@ ) or a little longer than ( ¢) half the body, not strongly serrate; head

convex, not carinate or impressed, moderately closely punctate, but with distinct intervals, clypeus as

broad at the base as the distance to the eyes, these distinctly incised in front; thorax scarcely wider

than long, quadrate, sides straight and parallel, slightly rounded at the apex only, disc moderately convex,

a very vague oblique impression each side of the middle of the base, surface moderately, not closely pune-

tate, a vague groove along the apical border externally; elytra extremely indistinctly substriate, sutural

stria short, intervals more finely punctate than the thorax, and gradually more sparsely to the apex ;

propleural groove distinctly wider behind, its outer carina entire, the posterior supplementary carina

extending halfway to the apex; body beneath reddish-brown, abdomen closely punctate; legs paler.

Length 2-3°5 millim.

Hab. Guatemata, San Isidro (Champion); Panama, Bugaba, Volcan de Chiriqui,

Caldera (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1890. 2K

250 . SERRICORNIA.

Also closely related to M. pyreneus, and resembling it in colour, but with the head

entirely red. Its facies is not unlike that of Entomophthalmus, and the structural

resemblance is increased by the incisure of the eye in front. The male has a small

tubercle at the middle of the last ventral segment, and the female an indistinct oval

flattened space.

7. Microrhagus marcidus.

Cylindrical, slightly depressed, pale rufo-ferruginous, feebly shining, sparsely pubescent: antenne slender,

serrate, two-thirds the length of the body; head convex, not carinate or impressed, coarsely and

moderately closely punctate, clypeus broader at the base than the distance to the eyes, these large, entire,

the front between them but little wider than either eye ; thorax nearly a third wider than long, slightly

wider in front, sides straight, arcuate only at the front angles, a slight groove along the apical border,

dise convex, the posterior declivity rather flat, a small tubercle immediately in front of the middle of the

base, surface rather finely, not closely punctate; elytra vaguely striate near the base, the sutural stria

entire, the striw at the apex with coarse deep punctures, intervals finely and rather sparsely punctate ;

propleural groove distinctly limited externally by an entire ridge, posterior inferior supplementary line

extending three-fourths to the apex, the propleural area internal to this line more than three times as wide

at the base as the groove; metasternal episternum narrow but parallel ; abdomen finely, rather sparsely

punctate at the base, coarsely at the apex.

Length 3°5 millim.

Hab. Panama, Bugaba (Champion).

Evidently somewhat related to M. dilutus, but with a wider thorax and differently

sculptured elytra.

8. Microrhagus protractus.

Elongate, depressed cylindrical, parallel, piceous-brown, the anterior margin of the thorax indistinctly, the

scutellum, base of the elytra, and suture reddish, moderately shining, sparsely fulvo-pubescent : antenne

ferruginous, three-fourths the length of the body, slender, serrate ; head convex, moderately closely, not

coarsely punctate, clypeus much wider at the base than the distance to the eyes, these large; thorax nearly

twice as wide as long, sides straight and parallel, arcuate at the front angles only, a slight groove behind

the apical margin, disc convex, transversely flattened in front of the base, a faint tubercle at the middle

of the base, surface finely and moderately closely punctate; elytra rugosely substriate at the base, the

stris at the apex with coarse deep punctures, intervals finely, rather sparsely punctate; propleural

groove narrow, wider in front, its outer carina entire, posterior inferior supplementary carina extending

nearly to the apex, the propleural area wider at the base than long; metasternal episternum moderately

wide and parallel ; abdomen sparsely, finely punctate, more coarsely on the apical segment.

Length 5°5 millim.

Hab. Panama, Bugaba (Champion).

This species is closely related to /. swtwralis in form and colour. It differs in having

serrate antennee, and in the coarsely punctured striz at the apex. One male specimen.

9. Microrhagus maculicollis.

Oblong, parallel, depressed-cylindrical, piceous-black, opaque, sparsely pubescent, head in part yellow, thorax

broadly yellow at the sides: antenne piceous-black, evidently longer than half the body (last five joints

wanting), third joint triangular, joints 4-6 pectinate (3), the branches longer than the joint; head

convex, moderately closely punctate, in great part yellow, a triangular spot at the occiput, a space around

the antennal foves, and the apex of the clypeus black, clypeus a little wider at the base than the distance

to the eyes, these distinctly triangularly incised in front; thorax one third wider than long, sides straight

MICRORHAGUS. 251

and parallel at the base, arcuately narrowed at the apical third, disc convex, closely subasperately punc-

tate, colour pale yellow, a broad median black space arcuately wider posteriorly; elytra finely striate, the

strie distinctly punctate at the apical third and at the sides, intervals moderately closely submuricately

punctate, somewhat transversely wrinkled near the base ; epipleure yellow at the base; pronotum beneath

yellow, except a narrow space exterior to the propleural grooves, these narrow, the outer carina not

reaching the base; propleural area wider at the base than long, the posterior inferior supplementary line

sinuous, extending two-thirds to the apex; metasternum in front margined with yellow, its episternum

narrow but parallel; abdomen finely sparsely punctate, brownish, broadly darker at the middle, more

narrowly at the sides; legs piceous.

Length 4 millim.

Hab. Panama, Bugaba (Champion).

This species seems more nearly related to MW. egregius than to any other described by

de Bonvouloir, but it differs in many important points of sculpture and colour. One

imperfect male specimen seen.

10. Microrhagus elatus.

Subcylindrical, parallel, piceous-black, subopaque, sparsely pubescent, thorax reddish-yellow, with a broad

median stripe extending from the base to the apex, narrower behind, and the hind angles piceous: antenne

black, nearly as long as the entire body ( 6), or somewhat shorter ( 2 ), serrate in both sexes, but more

broadly in @ ; head brownish or black, densely punctate, clypeus at the base a little narrower than the

distance to the eyes, these entire; thorax one fourth wider than long, sides straight and parallel at the

middle, arcuate at the apical third, hind angles slightly divergent, disc convex, densely punctate, clothed

with silken yellow pubescence, more compressed at the sides; elytra striate, strie not punctate, intervals

densely submuricately punctate, somewhat transversely wrinkled near the base; body beneath piceons-

black, shining, abdomen brownish at the sides; propleural groove narrow, the outer carina not entire,

posterior inferior supplementary line not reaching the middle in front, propleural area densely punctate ;

abdomen closely punctate; legs piceous, the tips of the tarsi ferruginous.

Length 4—4°5 millim.

Hab. Guatemata, Zapote (Champion); Panama, Bugaba, Volcan de Chiriqui

(Champion).

Related to WM. maculicollis; but the male antenne are not pectinate, the eyes are

entire, and the striz are not punctate at the apex.

11. Microrhagus insidiosus. (Tab. X. fig. 23, 3.)

Similar in form to M. elatus, piceous-black, opaque, sparsely pubescent, thorax reddish-yellow, with a central

elongate-oval piceous spot, narrow behind, not reaching the apical or basal margin : antenne black, nearly

as long as the body, slender but serrate; head convex, densely subrugosely punctate, concave above the

base of the clypeus, which is as wide as the distance to the eyes, these entire; thorax one third wider

than long, sides parallel at the middle, slightly sinuous, anterior third obliquely narrowed, disc convex, a

moderately deep impression each side of the middle, median line posteriorly finely carinate, prolonged in

front in a faint median groove, surface closely punctate ; elytra obsoletely striate at the middle and near

the base, distinctly at the sides and apex, strie not punctate at the apex, intervals rather closely roughly

punctate, more densely near the base, and somewhat transversely wrinkled ; body beneath piceous-black,

shining; pronotum beneath sparsely punctate, black, except near the hind angles, propleural groove very

narrow posteriorly, wider in front, the outer carina entire, posterior inferior supplementary line sinuate,

extending nearly to the apex; abdomen finely and rather sparsely punctate at the middle, more coarsely

and densely at the sides and apex; legs piceous, tips of the tarsi pale.

Length 5°5 millim.

Hab. Guatema.a, Capetillo (Champion).

2K2

252 SERRICORNIA.

It would be rather difficult to assign this insect to a generic position in the absence

of the closely related species. The propleural groove is so very narrow posteriorly

that it seems to be in front merely a separation of the prosternal sutures. While the

species closely resembles WV. elatus, it differs in the much longer postero-inferior line,

the comparatively smooth propleure, and the feeble elytral striz at the middle near

the base. One male specimen alone has been seen.

12. Microrhagus meticulosus.

Microrhagus meticulosus, de Bonv. Mon. p. 604’.

Hab. Muxtco, Cordova (Sailé 1).

By some singular mistake, de Bonvouloir has confounded two very distinct species,

this and the following. Having now the type before me it is possible to indicate the

differences. MM. meticulosus has entirely ferruginous elytra, the thorax not grooved

along the middle, and the outer carina of the juxta-sutural groove entire. ‘This

species has not yet occurred in temperate North America. The figure (t. 29. fig. 6)

given by de Bonvouloir applies to M. humeralis.

13. Microrhagus humeralis.

Eucnemis humeralis, Say, Trans. Am. Phil. Soe. vi. p. 189°.

Microrhagus humeralis, Lec. Proc. Acad. Phil. vi. p. 48°; de Bonv. Mon. p. 607°; Horn, Trans.

Am, Ent. Soc. 1886, p. 36%.

Hab. Norta America, United States from Canada southward‘, Pennsylvania ? 3,

Indiana’, Tennessee, Georgia®, Louisiana®.— GuatemaLa, Capetillo (Champion) ;

Panama, Caldera in Chiriqui (Champion).

This species is quite constant in its colour, piceous-black, the elytra at the basal third

orange-red. The disc of the thorax is feebly impressed along the median line and the

outer carina of the juxta-sutural sulcus does not extend more than three-fourths to the

base. The description of M. meticulosus seems to have been made from this species,

at least in part, while the figure (t. 29. fig. 6) is very good for this one.

14. Microrhagus thoracicus.

Cylindrical, convex, piceous-black, feebly shining, head and thorax reddish-brown, very indistinctly pubescent :

antenne piceous, strongly ( 3) or moderately serrate ( @ ), a little longer than half the body ; head convex,

not carinate or impressed, coarsely, closely, and subrugosely punctate; thorax a little longer than wide at

the base, sides straight and parallel, arcuate near the front angles only, disc convex, sometimes with a

fovea each side of the middle, an oblique impression each side of the middle of the base, and a depression

at the hind angles, a faint trace of a median carina near the base, surface rather coarsely and closely

punctate posteriorly, densely and more finely in front, carina of the hind angles well elevated, anterior

supplementary line extending one third towards the base, the posterior line well defined, extending

two-thirds to the apex, the outer carina of the juxta-sutural groove extending only two-thirds to the

base ; elytra striate, intervals slightly convex, closely muricately punctate, especially at the base; tip of

MICRORHAGUS.—FARSUS. 258

the prosternum acute; body beneath piceous, coarsely closely punctate; posterior coxal plates equally

broad, not dilated internally ; legs paler reddish-brown, femora somewhat darker.

Length 3-4 millim.

Hab. Guatema.a, Las Mercedes (Champion) ; Panama, Volcan de Chiriqui (Champion).

Allied to MZ. humeralis, but differs in colour and by the absence of any median

impression on the thorax. In well-preserved specimens the fulvous pubescence of the

thorax is more distinct at the sides and hind angles.

FARSUS.

Farsus, Jacquelin-Duval, Gen. Col. Eur. iii. p. 116 (1860) ; de Bonvouloir, Mon. des Eucnémides,

p. 618.

This genus is closely related to Microrhagus and Arrhipis, differing from the former

in the absence of a well-defined depression along the inner edge of the propleure, and

from the latter by having the inferior marginal line which continues the apical margin

prolonged well backward.

1. Farsus obscurus.

Farsus.obscurus, de Bonv. Mon. p. 624, t. 30. fig. 6°.

Hab. Mexico, Toxpam, Cordova (Sallé!); Nicaracua, Chontales (Bel¢).

The only specimens seen are unfortunately in bad condition.

2. Farsus oblitus.

Cylindrical, moderately convex, slightly narrower behind, varying in colour from brown to piceous, subopaque,

sparsely pubescent: antenne slender, varying in colour from ferruginous to piceous; a little longer than

half the body ; head convex, a vague triangular impression at the base of the clypeus, densely rugosely

punctate, the clypeus nearly as wide as the distance to the eye; thorax nearly as long as wide, sides

parallel at the basal half, then arcuate to the apex, convex, the disc slightly depressed, a slight smooth

median line behind the middle, slightly elevated at the base, no basal oblique impressions, surface densely

asperately punctate; elytra vaguely striate, the intervals closely punctate, densely at the base; prosternum

coarsely closely punctate, the impression of the propectus limited behind by a distinctly elevated transverse

line; abdomen moderately closely but indistinctly punctate; legs yellowish-testaceous.

Length 3-4 millim.

Hab. Guavemata, Mirandilla, Torola (Champion); Panama, San Lorenzo in Chiriqui

(Champion).

Allied to F. elevatus, which has a similar transverse line limiting the impression

of the propectus ; but differs in the absence of oblique impressious at the base of the

thorax and by the longitudinal impression of the head. Three specimens, the one of

paler colour evidently less mature. |

254 SERRICORNIA.

ADELOTHYREUS.

Adelothyreus, de Bonvouloir, Mon. des Eucnémides, p. 609 (1870).

This genus scarcely differs from Farsus, except in having the first joint of the posterior

tarsus as long as the following joints together.

Two species occur in our fauna.

1. Adelothyreus flavosignatus.

Adelothyreus flavosignatus, de Bonv. Mon. p. 614, t. 30. fig. 1°.

Hab. Mexico}, Cordova (Sallé); Guatemaua, Mirandilla (Champion ).—CotomBta!.

A pretty species of slender form, having on each elytron an oval yellow spot of

variable size.

2. Adelothyreus comes.

Subcylindrical, slightly narrowed posteriorly, piceous-black, subopaque: antennea—( ?) ferruginous, not half

as long as the body, joints 4-10 strongly serrate, and gradually becoming slightly shorter—( ¢ ) piceous,

joints 4-11 gradually longer, 4-10 pectinate, the branches at least twice as long as the joint; head

densely and rather coarsely punctate, a slight frontal tubercle smoother; thorax slightly longer than

wide, sides parallel, arcuate in front, disc flattened, median line distinctly impressed on the posterior

declivity, becoming very vague anteriorly, on each side of the middle of the base a moderately deep and

broad oblique depression, a shorter but deeper one above the hind angles, surface densely punctate, some-

what rugose, subgranulate near the sides, pubescence very short and inconspicuous ; elytra vaguely striate

at the base, more distinctly at the apex, intervals closely rugosely punctate, subgranulate at the base ;

sides of the metasternum and posterior coxal plates almost cribrately punctate ; abdomen closely coarsely

punctate, cinereo-pubescent ; legs ferruginous.

Length 5 millim.

Hab. Mexico, Cerro de Plumas (Hége); Panama, Bugaba, Volcan de Chiriqui, San

Feliz (Champion).

This species is evidently very closely related to A. dejeant from temperate North

America, of which examples are not at hand for comparison. The specimens have

indistinctly brown humeri.

ADELORHAGUS.

Form cylindrical. Antenne slender, slightly serrate, longer than half the body; first joint equal to the next

two, second small, third longer than half the first, fourth a little shorter than the third, fourth to the

tenth gradually increasing in length, eleventh nearly as long as the preceding two. Clypeus feebly arcuate

in front, the angles joining the gene by a narrow isthmus, the base narrower than the distance to the

eyes. Thorax with the hind angles strongly carinate; the posterior inferior marginal line sharply detined

nearly three-fourths to the apex, the anterior inferior line very short, the upper supplementary line curving

nearly to the middle. Propectus without well-defined groove, with merely a smooth space along the

suture. Metasternal episterna narrow, parallel. Posterior coxal plates very little broadened internally.

Last ventral segment triangularly prolonged. Hind tarsi shorter than the tibia, the first joint shorter

than the following joints together, the fourth very small, excavate-emarginate ; claws simple.

This new name is suggested for a small species which will not enter any of the genera

allied to Microrhagus. While it possesses many of the more important characters of

ADELORHAGUS.—ARRHIPIS. 255

Arrhipis, it differs in its longer and more slender antenne and by the triangularly

prolonged last ventral segment. The hind angles of the thorax are well carinate, as in

Entomophthalmus mexicanus.

1, Adelorhagus lateralis. (Tab. X. fig. 24.)

Oblong, subcylindrical, gradually narrowed behind from the base of the thorax, pale ferruginous, the sides of

the elytra and sometimes the suture fuscous, subopaque, sparsely pubescent; antenne piceous, the last

joint yellowish: head closely, rather coarsely punctured, a triangular depression anteriorly with the base

towards the clypeus; thorax as broad as long, sides straight and parallel at the middle, arcuately narrowed

in front, slightly divergent at the hind angles, which are strongly carinate, disc convex, median line

vaguely depressed nearly three-fourths to the apex, surface closely subgranulate ; elytra striate, striae

rather coarsely punctate, intervals narrow, punctate, at the sides more coarsely than on the disc; beneath

much paler than above, sparsely pubescent, coarsely punctate, abdomen coarsely punctate at the sides,

very finely at the middle ; legs pale yellow.

Length 4 millim.

fab. Panama, Bugaba, Volcan de Chiriqui (Champion).

The fuscous border of the elytra begins at the humerus, but does not reach the tip ;

the suture is not so distinctly darkened. Three specimens representing the two sexes

are before me; that supposed to be the female has slightly shorter antenne, and the

disc of the last ventral segment more convex.

ARRHIPIS.

Arrhipis, de Bonvouloir, Mon. des Eucnémides, p. 627 (1870).

This genus is closely related to Microrhagus, but has no well-defined depression for

the antenne along the inner side of the propleure. The two species heretofore

known from Mexico and the Antilles have the prosternal sutures entirely obliterated ;

a third, from the island of Kaioa, north of Batchian, has well-marked sutures.

1. Arrhipis subacuta.

Hylochares subacutus, Guérin, Ann. Soc. Ent. Fr. 1843, p. 176 -

Arrhipis subacuta, de Bony. Mon. p. 628, t. 30. fig. 8°.

Eucnemis senegalensis, Cast. in Silberm. Rev. Ent. iii. p. 174°.

Hab. Muxico1, Toxpam 2, Playa Vicente 2, Santecomapan, Cosamaloapam *, Teapa ”,

Tehuantepec (Sailé); Guaremata, Panzos in Vera Paz (Champion); Nicaragua,

Chontales (Janson); Panama, Bugaba (Champion).—CotomBia?; Gutana, Cayenne? ;

Amazons, Ega?; Brazit, Santa Catarina ?.

Castelnau? gave Senegal as the locality for his E. senegalensis, but this was, no

doubt, in error.

256 SERRICORNIA.

PTEROTARSUS.

Pterotarsus, Eschscholtz, in Thon’s Ent. Archiv (1829), il. pt. 1, p. 833; de Bonvouloir, Mon. des

Eucnémides, p. 830.

This genus has been divided by de Bonvouloir into two subgenera—Pterotarsus

proper with the surface more or less irregular or tuberculate, and Lissothyreus with

even surface. Both are represented in the Central-American fauna.

1. Pterotarsus humilis.

Pterotarsus humilis, de Bonv. Mon. p. 887, t. 40. fig. 6".

Hab. Nicaragua (Sallé!), Chontales (Belt).—Gutana, Cayenne}.

2. Pterotarsus eschscholtzi.

Pterotarsus Eschscholizii, Cast. in Silberm. Rev. Ent. iii. p. 175*; Guérin, Ann. Soc. Ent. Fr.

1843, p. 196, t. 6. fig. 71°; de Bonv. Mon. p. 843, t. 41. fig. 1°.

Hab. Panama, Volcan de Chiriqui (Champion).—Braziu } ? 3,

3. Pterotarsus rugosus.

Pterotarsus rugosus, Blanch. Voyage de d’Orbigny, Ins. p. 146, t. 8. fig. 3°; Guérin, Ann. Soc. —

Ent. Fr. 1843, p. 196°; de Bonv. Mon. p. 845 *.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).—Bo.tvia! 2 3,

The carina of the last ventral segment is longer and more distinct in the male.

4. Pterotarsus histrio.

Pterotarsus histrio, Guérin, Icon. Régne Anim. t. 12. fig. 2'; Latr. Ann. Soc. Ent. Fr. 1834,

p. 182°; Guérin, Ann. Soc. Ent. Fr. 1843, p. 194°; Cast. Hist. Nat. Ins. Col. i. p. 227%.

Pterotarsus (Lissothyreus) histrio, de Bonv. Mon. p. 847, t. 41. fig. 3°.

Pterotarsus brasiliensis, Cast. in Silberm. Rev. Ent. iii. p. 174°.

Pterotarsus tuberculatus, Lucas, in Cast. Expéd. dans l’Amér, du Sud, ii. p. 697.

Hab. Guatemaa, San Juan in Vera Paz (Champion) ; Nicaragua, Chontales (Belt) ;

Panama, Volcan de Chiriqui (Champion).—Co.omBia, Bogota>; Gutana, Cayenne) ;

Amazons®7; Brazini2346 6,

An extremely variable species in its coloration. The ground-colour is a pale orange-

yellow, the head with a median black spot, the elytra with a broad black band at the

base, often interrupted at the suture, a band one third from the apex, also often

interrupted. This is the usual form, many departures from which are described

by de Bonvouloir.

Var. inornatus.

Colour entirely pale orange-yellow, without spots or bands ; basal joints of the antenne black, the rami of the

following joints piceous.

Hab. Nicaracua, Chontales (Belt).

THYLACOSTERNUS. 257

THYLACOSTERNUS.

Thylacosternus, de Bonvouloir, Mon. des Eucnémides, p. 855 (1870).

The species of this genus have a peculiar facies, owing to their elongate parallel

_ form, recalling Hylecetus.

1. Thylacosternus rubricollis.

Thylacosternus rubricollis, de Bonv. Mon. p. 863".

Hab. Mexico, Cordova (Sallé1), Teapa in Tabasco (H. H. Smith).

Black ; thorax, middle of the metasternum, and femora pale orange-yellow; elytra

striate at the base.

2. Thylacosternus bifasciatus.

Thylacosternus bifasciatus, de Bonv. Mon. p. 869".

Hab. Mexico, Playa Vicente (Sal/é +).

Similar to 7. rubricollis, but with the occiput also pale; legs entirely yellowish; each

elytron with a pale stripe from the humerus to the apex.

8. Thylacosternus nigrinus.

Thylacosternus nigrinus, de Bonv. Mon. p. 864, t. 42. fig. 2".

Hab. Mexico!, Cordova (Sallé).

Entirely black, except the anterior angles and underside of the thorax ; legs yellowish,

the tibiz piceous.

4, Thylacosternus donatus. (Tab. X. fig. 25.)

Similar in form to 7. rubricollis: antennee black ; head densely and coarsely punctate, vertex slightly concave ;

thorax broader than long, sides parallel, rounded at the front angles, disc moderately convex, closely

punctate, median line slightly impressed from the base to the middle, where there is a shallow fovea, a

vague transverse depression at the middle of the declivity, colour reddish-yellow, with two quadrate

piceous spots, the anterior large, contiguous to the apex, the other smaller, contiguous to the base, these

separated at the central fovea, surface sparsely fulvo-pubescent ; elytra striate, except at the apex, the

strie vague, but deeper at the base, intervals slightly convex, more distinctly near the base, densely

punctate, somewhat roughly at the base, surface sparsely clothed with short, black, erect pubescence ;

body beneath, except the prothorax, black, moderately shining, abdomen closely punctate, cinereo-pubes-

cent; legs piceous-black, the anterior and middle femora at the base and their coxee yellowish, tarsi pale.

Length 7:5 millim.

Hab. Mexico, Coahuila (from my cab., Dr. Palmer).

This species is evidently related to 7. pulchellus, but with a differently impressed

thorax and more distinctly striate elytra.

[N.B.—This page was published in November, 1890, and is now reprinted.—Ebp. |

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1894. — 9L

258 SERRICORNIA.

Fam. ELATERIDZ *.

In dealing with the Central-American species of Elateride, I follow in the main the

classification of Dr. E. Candéze, who for forty years has made these insects his special

_ study.

Any departures from his system will be mentioned as they occur, and all general

remarks will be found in the ‘ Introduction’ to this Volume.

Group AGRYPNINI.

ADELOCERA.

Adelocera, Latreille, Régne Anim. iv. p. 451 (1829) ; Candéze, Monogr. Elat. i. p. 47; Revis. Elat.

p. 14.

Of the sixty-four described species of Adelocera, one half inhabit the New World,

the genus ranging from high northern latitudes to the tropics. In the typical species

(as in Dilobitarsus) the prosternal grooves are very deep throughout and extend nearly

to the anterior coxal cavities, thus forming a complete channel for the reception of the

antenne when longitudinally extended backwards; but in the three new species here

described these grooves are shorter (though longer than in Lacon) and do not receive

the whole of the antenne in repose. The antenne are usually serrate in both sexes,

but are sometimes pectinate in the male; in some species they are more thickly pilose

on the inner edge in the males than in the females. In addition to the nine species

here enumerated from within our limits, one other, the widely-distributed A. modesta,

Boisd. (=pruinosa and sgualida, Fairm.), is given by Candéze (Monogr. Elat. i. p. 72)

as from Guatemala ; but it is highly probable that there is some mistake about this

locality ft.

These insects are all found under the bark of trees, the more northern species beneath

that of pines. Our species (two of which are known to me from description only) may

be identified by the annexed table :—

Prosternal grooves extending almost to the anterior coxal cavities, entire, very deep

throughout ; antenne serrate in both sexes, short.

Elytral punctures not forming distinct striz.

Hind angles of the prothorax not carmate. . . . . . . 1 1 eee CREO

Hind angles of the prothorax carinate . . . . . . . 1. eee miata.

* By G. C. Cuampron.

t In the Janson collection there are two specimens of this species labelled as from “ Vera Cruz, Mexico, ex

Laferté ;” this statement equally requires confirmation.

ADELOCERA. 259

Elytra distinctly punctate-striate, the punctures of the interstices finer

than those of the striz.

Prothorax tuberculate in the middle at the base; the prothorax and

elytra rufous, with the disc partly black . wee . palhata.

Prothorax not tuberculate in the middle at the base; the prothorax and

elytra more obscurely coloured. |

Body elongate.

Elytra subparallel in their basal half. . . . . . . .). ). ) .) mevicana.

Elytra narrowing from about the basal third . . . . . . . . pollinaria.

Body not elongate; size small (8 millim.). . . . . . . 1 . .) massula.

Prosternal grooves abbreviated ; antenne longer.

Antenne serrate in both sexes.

Surface uniformly clothed with bluish-green scales . . . . . . .. viridis.

Surface clothed with cinereous or fulvo-cinereous scales. . . . . . longicornis.

Antenne strongly pectinatein the male . . . . . . 1 1... pectinicornis.

1. Adelocera ceca.

Adelocera ceca, Cand. Revis. Elat. p. 18°.

Hab. GuateMa.a, Yzabal (Sallé 4).

Described from a single example.

2. Adelocera mixta.

Adelocera mixta, Cand. Compt. rend. Soc. Ent. Belg. xxi. p. lii (Elat. nouv. ii. p. 5)‘.

“Nigra, subnitida, convexa, pilis squamiformibus brunneis argenteisque intermixtis vestita; prothorace

latitudine longiore, convexo, punctato, angulis posticis acutis, divaricatis, carinatis; elytris dorso

haud deplanatis, punctatis, leviter sulcatis, striis punctis destitutis; sulcis tarsalibus nullis.—Long. 16,

lat. 44 millim.”

Hab. Mexico}.

Unknown to me. It appears to differ from A. ceca chiefly in the carinate hind angles.

of the thorax.

3. Adelocera palliata,

Elater palliatus, Latr. in Humb. et Bonp]. Obs. Zool. i. p. 154, t. 16. fig. 3°.

Adelocera palliata, Cand. Revis. Elat. p. 29°.

Adelocera chapuisii, Cand. Monogr. Elat. i. p. 66, t. 1. fig. 5°.

Hab. Mexico? (coll. Janson, ex Latreille), Volcan de Jorullo!; Nicaraeva, Chontales:

(Belt, E. M. Janson).—CotomBia?; Ecuapor, Balzar Mountains.

Of this fine species I have seen nine examples from within our limits—one from

Mexico and eight from Nicaragua. The Mexican locality seems to require confirmation.

The insect varies in colour, the black on the thorax and elytra being more extended in

some specimens than in others.

202

260 SERRICORNIA.

4, Adelocera mexicana. (Tab. XI. fig. 1.)

Adelocera mexicana, Cand. Monogr. Elat. i. p. 70'; Revis. Elat. p. 31 *.

Hab. Mextco!2, Tres Marias Is., Ventanas in Durango (Forrer), Tuxtla (Sallé) ;

Nicaracua, Chontales (Belt, 2. M. Janson).

I have seen nine examples of this species. It varies in colour, the elytra sometimes

having the suture broadly piceous to beyond the middle, and sometimes in addition a

postmedian fascia of the same colour. The thorax always has a large piceous patch on

the disc. The elytra usually have a distinct transverse postmedian fascia of brownish

scales. A specimen from Chontales is figured.

5. Adelocera pollinaria. (Tab. XI. fig. 2.)

Adelocera pollinaria, Cand. Monogr. Elat. i. p. 68, t. 1. fig. 14°; Revis. Hlat. p. 29°.

Adelocera adspersa, Cand. Revis. Elat. p. 30°.

Hab. Guaremaia, Yzabal (Sallé?); Panama, Bugaba (Champion).—Amazons, ga ;

Braziu }?.

Closely allied to A. mexicana, but differing from it in having the elytra more narrowed

posteriorly, and the seriate punctures coarser and less approximate. The elytra some-

times have nearly the apical half piceous or brown. A. adspersa, the type of which

we figure, differs in no way from similarly-coloured specimens of A. pollinaria from

Brazil.

6. Adelocera massula.

Adelocera massula, Cand. Elat. Nouv. ii. p. 2°.

“‘ Brevis, compacta, brunnea, opaca, sparsim pallide pilosula ; fronte antice impressa, rugosa; antennis brevis,

crassiusculis ; prothorace quadrato, crasso, dense et fortiter punctato; elytris brevibus, crassis, seriatim

grosse punctatis, interstitiis punctulatis, tertio et quinto apice subelevatis.—Long. 8, lat. 2 millim.”

Hab. Mexico !.

Unknown to me. A small species approaching A. miata, but with the elytra

seriate-punctate *.

7. Adelocera viridis. (Tab. XI. fig. 3.)

Elongate, broad, moderately convex, black ; above and beneath somewhat sparsely and uniformly clothed with

closely appressed, small, bluish-green scales, which do not hide the sculpture. Head coarsely, confluently

punctured, concave in the middle in front; antenne finely pubescent, nearly reaching the base of the

prothorax, with the joints from the third broadly flattened and serrate, 3-10 about as broad as long.

Prothorax transversely convex, broader than long, deeply and rather broadly sulcate down the middle ;

the sides arcuate and converging anteriorly, moderately sinuate behind, the marginal carina visible from

above, the hind angles prolonged backwards and moderately sharp; the entire surface coarsely, confluently

* In Candéze’s Cat. Méth. Elat. (pp. 18, 14) A. massula is entered twice, under each of his sections of

the genus,

ADELOCERA, 261

punctured. Scutellum coarsely punctured, rounded behind. Elytra nearly three times as long as the

prothorax, broadly flattened on the disc, parallel to beyond the middle, and then arcuately narrowed

to the apex; the surface closely, confusedly punctured, and with very shallow longitudinal grooves,

the punctures much finer than on the prothorax and showing no tendency to a linear arrangement,

Beneath very closely and (except on the prosternum) not very coarsely punctured ; prosternal grooves

very deep, open behind, abbreviated, reaching about two-thirds of the distance to the coxal cavities,

the sutures sinuous posteriorly ; the propleure not grooved.

Length 193, breadth 6 millim. ( 9.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (Champion).

One specimen. This very distinct species is allied to A. carbonaria, Schr., and

A, sparsa, Cand., but differs from both in the abbreviated and incomplete prosternal

grooves; the antenne are longer and more broadly serrate, the thorax is shorter and

more convex, and the elytra are more elongate; the entire surface above and beneath

is uniformly clothed with small bluish-green scales.

8. Adelocera longicornis. (Tab. XI. fig. 4, ¢.)

Elongate, rather narrow, moderately convex; ferruginous or obscure ferruginous, in some specimens (9 ) the

head, elytra, under surface, and a large discoidal patch on the prothorax pitchy black, and the hind angles

of the prothorax testaceous or rufo-testaceous ; above and beneath rather sparsely clothed with appressed

cinereous or fulvo-cinereous, piliform, acuminate scales, those on the prothorax sometimes ( 2 )more golden

upon the sides and base and brown on the middle of the disc; the legs and antenne pitchy-brown, some-

times partly ferruginous. Head broadly excavate in the middle in front, coarsely, closely punctate ;

antenne about reaching the base of the prothorax in the female, more elongate and more pubescent on

the inner edge in the male, the joints from the third flattened and moderately serrate, 3-10 longer and.

broad. Prothorax nearly as long as broad, convex, deeply canaliculate in the middle behind ; the sides

moderately arcuate, converging in front, and strongly sinuate behind; the hind angles acutely produced

and divergent in the male, less prominent in the female; the entire surface rather coarsely, moderately

elosely punctate. Scutellum coarsely, closely punctate, acute behind. Llytra three times as long as the.

prothorax, feebly convex, flattened towards the suture, subparallel to about the middle and gradually

narrowed thence to the apex ; the surface closely, confusedly punctured, and sometimes with very shallow

longitudinal grooves, the punctures finer than on the prothorax and showing no tendency to a linear

arrangement. Beneath closely and (except on the prosternum) not very coarsely punctured ; prosternal

grooves very deep, abbreviated, about reaching two-thirds of the distance to the coxal cavities; the

propleure not grooved.

Length 113-16, breadth 33-4? millim. (¢ 9.)

Hab. Guaremaua, Capetillo (Champion).

Three males and two females. In this species the prosternal grooves are formed very

much as in A. viridis, except that they are more abruptly limited posteriorly ; the antenne

are unusually elongate. especially in the male. A. longicornis has somewhat the facies

of a small A. meaicana, but it has very differently punctured elytra. The females I

refer to A. longicornis differ from the males in colour, and also in the denser clothing

of the thorax, but as the specimens are all from the same locality I do not hesitate to

put them together.

262 SERRICORNIA.

9, Adelocera pectinicornis. (Tab XI. figg. 5, ¢; 54, profile; 5 6, antenna.)

g. Moderately elongate, very convex, black, the base of the elytra and the epipleure ferruginous ; the entire

upper surface closely, confusedly, and rather coarsely punctured, thickly covered with coarse, appressed,

oblong, acuminate scales, which are brilliantly golden upon the head, scutellum, and prothorax, except

for an oval brown patch on the latter, and on the base of the elytra, those on the rest of the elytra being

blackish-brown; the under surface more coarsely punctured than above, sparsely clothed with finer cine-

reous acuminate scales ; the legs piceous, the tarsi obscure ferruginous. Antenne nearly reaching the base

of the prothorax, very strongly pectinate from the third joint, the latter sharply triangular, each joint thickly

fringed on the inner side above and beneath with long flavo-cinereous hairs. Prothorax as long as broad ;

the sides feebly arcuate, converging from the middle forwards, sinuate behind; the hind angles acute,

slightly divergent, obliquely carinate within ; the disc strongly transversely convex, abruptly declivous on

either side behind, and canaliculate from the base nearly to the apex. Scutellum declivous, vertical and

acute behind, the posterior half concave. Elytra rather more than twice the length of the prothorax,

parallel at the base and then somewhat rapidly narrowing to the apex, flattened on the disc, and with

the suture swollen in front and raised considerably above the scutellum. Prosternum very broad

and parallel, obliquely narrowed before the anterior coxal cavities; the grooves entire, very deep

throughout, but not nearly reaching the cavities; the propleure not grooved.

Length 12, breadth 32 millim. (<¢.)

Hab. Nicaragua, Chontales (Belt).

One specimen. ‘This beautiful insect is allied to the South-American A. pectinata,

Cand., but differs from it in the shorter prosternal grooves, the non-tuberculate thorax,

&c., and also in having the suture thickened in front and raised above the scutellum.

The antenne are formed very much as in A. pectinata, but they are more thickly

fringed with hair. The scales on the head and thorax are so dense as to hide the

sculpture.

DILOBITARSUS.

Dilobitarsus, Latreille, Ann. Soc. Ent. Fr. 1834, p. 142 ; Candéze, Monogr. Elat. i. p. 75; Revis.

Elat. p. 31.

Twenty-three species of this genus have been described, all but four of which are

from Tropical America. They are found under bark. JD. cornutus, Cand., from

Tropical Africa, has the prosternal grooves abbreviated and open behind, in this respect

resembling Adelocera viridis.

The three closely allied Central-American species may be separated thus :—

Marginal carina of the prothorax strongly flexuous . . . . . . . inopinus.

Marginal carina of the prothorax moderately flexous.

Prothorax not deeply sulcate down the middle . . . . . . . .. bidens.

Prothorax deeply sulcate down the middle. . . . . . . . . .. eloini.

1. Dilobitarsus inopinus. (Tab. XI. fig. 6.)

Dilobitarsus inopinus, Cand. Revis. Elat. p. 35°.

Hab. Mexico, Jalapa and Misantla in Vera Cruz (Hoge); Guaremata, Mirandilla

(Champion); Nicaraeva (coll. Janson 1).

DILOBITARSUS.—LACON. 263

We have received five specimens of this species. It differs from D. bidens in the

strongly flexuous lateral carina of the thorax, a character not mentioned by Candéze.

2. Dilobitarsus bidens.

Elater bidens, Fabr. Syst. Eleuth. ii. p. 227°.

Dilobitarsus bidens, Cand. Monogr, Elat. i. p. 83, t. 1. fig. 6°; Revis. Elat. p. 34°.

Dilobitarsus tuberculatus, Latr. Aun. Soc. Ent. Fr. 1834, p. 143 *.

Hab. Centran America®; Nicaragua (Sallé, E. M. Janson), Chontales (Belt).—

SoutH America !, Colombia 2%, Venezuela, Guiana 3, Brazil 23 4.

A widely distributed species in Tropical America. In some specimens the thorax

and elytra are narrowly ferruginous at the base.

8. Dilobitarsus eloini. (Tab. XI. fig. 10.)

Dilobitarsus eloini, Cand. Revis. Elat. p. 357.

Hab. Mexico (coll. Janson), Cordova (Sallé); Guatemaua, Sinanja and Teleman in

Vera Paz (Champion); Nicaragua, Chontales (Belt); Panama, Bugaba (Champion) ;

CENTRAL AMERICA}.

Smaller than D. didens, the thorax deeply sulcate down the middle; the elytra

depressed along the suture and with a well-marked fascia of flavo-cinereous hair-like

acuminate scales before the apex. A specimen from Bugaba is figured.

LACON.

Lacon, Castelnau, in Silb. Rev. Ent. iv. p. 11 (1836); Candéze, Monogr. Elat. i. p. 90; Revs.

Elat. p. 42.

A very widely distributed genus, containing about 230 described species, twelve

only of which are American, these ranging from the United States to Colombia. The

American species greatly resemble those of China and Australia; they are closely

allied and difficult to distinguish, the sculpture usually being completely hidden by an

adherent earthy coating*. The males have a space on the fifth ventral segment, of

variable size according to the species, almost smooth, or with the coarse punctures in

great part obliterated, this space (when viewed under a strong lens) being covered

with a very dense minute punctuation. These insects are found under stones, loose

bark, &c. The following key (p. 264) will assist in the identification of the Central-

American species.

* These insects can be readily cleaned for examination by immersion for a few minutes in caustic

potash.

264 SERRICORNIA.

Body clothed with narrow acuminate scales.

Propleurz more or less distinctly grooved for the reception of the ante-

rior tarsi.

Hind angles of the prothorax subrectangular. . . . . . . « . ~ curtus.

Hind angles of the prothorax obliquely truncate.

Form more or less elongate.

Propleural grooves shallow; fifth ventral segment with a large

smooth spacein @ . . «© ee ee ee . tuspanensis.

Propleural grooves deeper; fifth ventral segment with a small

smooth spacein f¢ . . . 1 ee ew ee ee eee Suillus.

Form short, broad... ee ee ee ee ee ee ee revi.

Propleurz not grooved for the reception of the anterior tarsi.

Hind angles of the prothorax rectangular. . . . . . : : truquit.

Hind angles of the prothorax more or less prominent, obliquely

truncate.

Prothorax moderately convex ; elytral interstices coarsely punctured . lezeleuci.

Prothorax transversely gibbous ; elytral interstices more finely punc-

tured 2 2. 1 ww ew ee . woe . scarrosus.

Hind angles of the prothorax prominent, almost rounded ; head with a

Y-shaped ridge .. . 2 see . . calamitosus.

Body clothed with long hair-like acuminate scales ; propleuree not grooved.

Elytra with distinct rows of punctures towards the sides; punctuation

moderately coarse. . . . . s. o 8 » 2 . . . aristatus.

Elytra without distinct rows of punctures towards the sides ; 3 punctuation

very coarse. 2. 6 ee ee ee we ee ee ee ee pattecttus.

1. Lacon curtus.

Adelocera curta, Lec. Trans, Am. Phil. Soc. x. p. 491°.

Lacon curtus, Cand. Monogr. Elat. i. p. 156°; Revis. Elat. p. 100°.

Hab. North America, Georgia!?, Texas?.—Mexico?? (coll. Janson, ex Laferté),

Chihuahua city (Hége).

Five examples of this species have been received from Herr Hoge, and there are two:

others labelled as from Mexico in the Laferté collection. L. curtus is very closely

allied to Z. rectangularis, Say, and apparently only differs from it in having the elytra

more coarsely striate-punctate, the punctures nearly or quite as wide as the interstices.

The male has a small oval space in the middle of the fifth ventral segment almost

devoid of coarse punctures.

2. Lacon tuspanensis.

Lacon tuspanensis, Cand. Monogr. Elat. i. p. 157°; Revis. Elat. p. 101°.

Hab. Mextco!?, Orizaba (coll. Janson), Playa Vicente, Cordova (Sallé), Talepa

(Hoge); GuatEMaLa, Zapote (Champion).

LACON. 265:

This species is closely allied to the following, LZ. sutd/us, but may be distinguished.

from it by its more elongate shape, the sharper and more obliquely truncate hind angles

of the thorax, and the very shallow propleural grooves, The male has a very large

almost smooth space on the fifth ventral segment extending to the apex ; in the corre~

sponding sex of Z. suillus this space is small, oval, and in the centre of the segment.

In some specimens of L. tuspanensis the propleural grooves are almost obliterated.

3. Lacon suillus.

Lacon suillus, Cand. Monogr. Hlat. i. p. 159°; Révis. Elat. p. 101 *.

Hab. Mexico!?, Orizaba (coll. Janson), Vera Cruz, Playa Vicente (Sallé), Jalapa

(Hoge); GuateMaLa, Chacoj in Vera Paz (Champion).

4, Lacon brevis. (Tab. X1. fig. 7.)

Lacon brevis, Cand. Monogr. Elat. i. p. 156*; Révis. Elat. p. 100°.

Hab. Mexico, Yucatan 1? (Sallé), Temax in North Yucatan (Gawmer).

Closely allied to Z. swillus, but broader and with the thorax a little more constricted

behind. The male has a small, almost smooth, oval space in the centre of the fifth

ventral segment; the apical margin of this segment is slightly thickened in both sexes.

5. Lacon truquii. (Tab. XI. fig. 8.)

Lacon truquii, Cand. Révis. Elat. p. 101°.

Hab. Muxico! (coll. Janson), Sayula in Jalisco, Jalapa (Hége), Chilpancingo (Hoge,

H. H. Smith), Oaxaca, Tepansacualco (Sallé); Nicaragua, Chontales (Bet).

This species may be known from all the allied forms with ungrooved propleure by

the rectangular hind angles of the thorax. The punctures on the interstices of the

elytra become more or less muricate towards the apex. The fifth ventral segment has

a transverse crenulated ridge before the apex in both sexes; in the male the median

part of this segment is more sparsely punctured, the spaces between the punctures

densely, very minutely punctate. A specimen from Jalapa is figured.

6. Lacon lezeleuci.

Lacon lezeleucii, Cand. Monogr. Elat. i. p. 158°; Reévis. Elat. p. 101°.

Hab. Mexico, Vera Cruz}? (Sallé), Jalapa (Hoge), Tepetlapa in Guerrero (4. H.

Smith); GuatemaLa, San Gerdénimo (Champion).

Candéze distinguishes this species from L. scarrosus chiefly by the crenulate margins

of the thorax: the types of the two insects are before me and they do not exhibit any

appreciable difference in thisrespect. L. lezeleuci, however, may be distinguished from

L. scarrosus by the thorax being more feebly canaliculate behind and less convex (the

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1894. 2M

266 SERRICORNIA.

disc not transversely gibbous), and by the more coarsely punctured elytral interstices.

The male has a small, almost smooth, oval space in the centre of the fifth ventral segment.

In one of the two specimens from San Gerénimo the hind angles of the thorax are

much less prominent than usual, the sides of the thorax being almost parallel behind.

7. Lacon scarrosus.

Lacon scarrosus, Cand. Monogr. Elat. i. p. 157°; Reévis. Elat. p. 100°.

Hab. Mextco!2, Panistlahuaca (Sallé), Teapa (Hége); British Honpuras (coll.

Janson); GUATEMALA? (coll. Janson), San Juan and Chacoj in Vera Paz, Duefias,

Capetillo, Zapote (Champion); Nicaragua, Chontales (Belt); Costa Rica (coll. Janson),

Trazu (Rogers).

This species, like LZ. tuspanensis, &c., has the thorax transversely gibbous about the

middle, and deeply canaliculate and foveate behind. The punctures of the elytral

interstices are much finer than those of the striz, becoming still finer towards the apex.

The male has a moderately large cordate or subtriangular smooth space on the fifth

ventral segment.

8. Lacon calamitosus.

Lacon calamitosus, Cand. Révis. Elat. p. 100’.

Hab. Mexico, Oaxaca}, Playa Vicente (Sadlé), Teapa in Tabasco (coll. Janson) ;

GuaTEMALA, Capetillo (Rodriguez).

I have only seen three examples of this species. It differs from ZL. lezeleuct and

LL. scarrosus chiefly in the Y-shaped ridge upon the head, and in the more rounded

hind angles of the thorax. The male has a transverse sparsely punctured space in the

middle of the fifth ventral segment; the apical margin of this segment is considerably

thickened in both sexes. The locality given by Candéze! is ‘ Oaxaca,” but the type

in the Sallé collection is labelled Playa Vicente.

9. Lacon aristatus.

Elongate, pitchy-brown or piceous, the hind angles of the prothorax sometimes obscure testaceous, thickly

clothed with cinereous or flavo-cinereous piliform acuminate scales, some of which are semierect on the

elytra; the oral organs, antennz, and legs obscure rufo-testaceous. Head coarsely, closely punctate,

broadly depressed in the middle in front. Prothorax a little broader than long, convex, transversely

gibbous about the middle, rather deeply canaliculate posteriorly and also longitudinally depressed on

either side midway between this and the margin; the sides obliquely converging in front, rounded about

the middle, and moderately sinuate behind; the anterior angles prominent; the hind angles obliquely

truncate; the surface closely, coarsely punctate. Scutellum coarsely punctured. Elytra elongate, as

wide as the prothorax at the base, narrowing from about the middle, moderately coarsely, closely,

confusedly punctate, with rows of coarser and deeper punctures towards the sides and apex. Beneath

coarsely, very closely punctate ; propleurse without distinct grooves for the reception of the anterior tarsi;

the fifth ventral segment with a transverse fold at the apex.

LACON.—MERISTHUS. 267

¢. Fifth ventral segment, except at the base and sides, very sparsely impressed with moderately coarse

punctures, the interspaces exceedingly minutely and densely punctate.

Length 9-18, breadth 3-4 millim. (¢ 2.)

Hab. Mexico, Vera Cruz (coll. Janson, ex Laferté); Guatemata (coll. Janson);

Costa Rica (coll. Janson, Van Patten), Caché (Rogers); Panama, Bugaba, Volcan de

Chiriqui (Champion).

This species may be distinguished from all the allied forms, the following excepted,

by its much longer acuminate scales, some of which are semierect on the elytra. The

elytra are confusedly punctured, the striz only visible towards the sides and apex.

The fifth ventral segment is almost smooth in the male, the minute interstitial punc-

tuation being only visible under a strong lens. Examples of this insect have been

collected in abundance in Costa Rica and Chiriqui. Specimens of this and the

following species have been returned to me by Dr. Candéze as unknown to him.

10. Lacon paleatus. (Tab. XI. fig. 9.)

Elongate, rather broad, pitchy-brown, thickly clothed with very long fulvo-cinereous piliform acuminate scales,

some of which are semierect on the elytra; the oral organs, antenne, and legs obscure rufo-testaceous.

Head coarsely, closely punctate, broadly depressed in the middle in front. Prothorax broader than long,

convex, abruptly transversely gibbous about the middle, deeply canaliculate posteriorly and also longi-

tudinally depressed on either side midway between this and the margin; the sides obliquely converging

in front, rounded about the middle, and moderately sinuate behind; the anterior angles prominent; the

hind angles obliquely truncate; the surface closely, coarsely punctate. Scutellum coarsely punctured.

Elytra closely, coarsely, confusedly punctured, the punctures becoming exceedingly coarse and crowded

towards the sides, the strie distinct at the apex only. Beneath closely, very coarsely punctate ;

propleure without distinct grooves for the reception of the anterior tarsi; the fifth ventral segment with

a transverse fold at the apex.

3. Fifth ventral segment with a broad oval space extending to the apex very sparsely impressed with

moderately coarse punctures, the interspaces exceedingly minutely and densely punctate.

Length 113-134, breadth 33-44 millim. (¢ @.)

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

Six examples. This insect closely resembles L. aristatus; but differs from it in the

longer piliform scales of the upper surface and the more coarsely punctured elytra, the

punctures becoming exceedingly coarse and crowded at the sides and confused with

those of the strie; the smooth space on the fifth ventral segment in the male is also

less extended, not occupying nearly the whole of the surface as in L. aristatus.

MERISTHUS.

Meristhus, Candéze, Monogr. Elat. i. p. 162 (1857); Révis. Elat. p. 162.

A genus of very wide distribution, containing ten described species, three of which

inhabit the New World, these ranging from Texas to the Amazons; one of them

possesses an extraordinary geographical distribution. Their habits, so far as I have

been able to observe, are like those of Cryptohypnus ; that is to say, they live under

| 2M 2

268 SERRICORNIA.

stones upon the sandy banks of streams. Like Lacon, they usually have the surface of _

the body completely encrusted with an adherent earthy coating, in addition to the

coarse scales with which they are clothed; and till this coating is removed the sculpture

is disguised or invisible. Most of the published descriptions of the various species have

been made from dirty specimens, and they are therefore very imperfect. The scaly

clothing extends to the upper surface of the basal joint of the antenne, and sometimes

to the outer edge of the tibize also. Our three species may be separated as follows :—

Prothorax with granular elevations, the interspaces finely shagreened ; scutellum

very sharply carinate . . . . . . ... . . . 2 6 + eristatus.

Prothorax simply punctured, without granular elevations ; scutellum finely

carinate.

Elytra moderately long; scales small (about 25 in suturalrow) . . . . . . scobinula.

Elytra short and more ovate; scales longer and stouter (about 18 in sutural row) ;

punctures coarser ; interstices narrower, smoother,and more shining . . . squamiger.

1. Meristhus cristatus.

Meristhus cristatus, Horn, Trans. Am. Ent. Soc. iii. p. 299, t. 4. fig. 2 (1871)*.

Hab. Norta America, Cape San Lucas, Lower California!, Texas (coll. Janson, ex

Horn).—MExico, Presidio in Durango (forrer).

Dr. Horn’s description of JZ. cristatus must have been made from dirty specimens, as

he has omitted to mention an important characier, viz. the presence of smooth granular

elevations upon the thorax, which are distinctly visible between the scales. The elytra

have rows of coarse punctures, upon the inner edge of each of which is asmooth, promi-

nent, granular elevation ; the interstices are broader than the punctures, and each bears

a series of short, stout, oblong whitish scales. The scutellum is very sharply carinate.

The Mexican specimen is piceous in colour, the thorax with the anterior margin and

hind angles, and the elytra with the sides and suture anteriorly, and a round spot on

the disc near the apex, indeterminately rufo-testaceous; the whitish scales form a

distinct patch on either side of the base of the thorax and also on the elytra at the

base. Two specimens of J. cristatus, from Texas, are contained in the Janson

collection.

2. Meristhus scobinula. (Tab. XI. fig. 12.)

Meristhus scobinula, Cand. Monogr. Elat. i. p. 164, t. 2. fig. 26°; Révis. Elat. p. 104.

Meristhus setarius, Chevr. Ann. Soc. Ent. Fr. 1867, p. 596°.

Meristhus texanus, Horn, Trans. Am. Ent. Soe. iii. p. 300, t. 4. fig. 1 (1871)*.

Hab. Norru America, Texas +,—Mexico!?, Teapa in Tabasco (coll. Janson); GuatE-

MALA, Hl Puente (Saldé), Chacoj in Vera Paz, Guatemala city, Rio Naranjo (Champion).

—CotomBia; Cuspa®.—Curna! 2 (Mus. Brit. & coll. Janson, ex Bakewell), Hong Kong

(J. J. Walker).

I have carefully compared thoroughly cleaned specimens from Texas and Central

MERISTHUS.—ALAUS. 269

America with others from Hong Kong and fail to find the slightest difference between

them. Mr. Walker’s Chinese specimens were found in dry sandy places, under stones.

The head and thorax are densely, moderately finely punctate, the head deeply canali-

culate; the scutellum is finely longitudinally carinate; the elytra are moderately long,

and have rows of coarse punctures separated by narrow interspaces, the latter each

with a series of rather small blunt scales, each of which is inserted close to a very

minute smooth granular elevation.

This insect has been collected in plenty by myself in Guatemala ; it varies greatly in

size (27-34 millim.) and also in colour. An example from Capetillo is figured.

3. Meristhus squamiger. (Tab. XI. fig. 14.)

Oblong-ovate, convex, obscure testaceous, ferruginous, or pitchy brown, the elytra sometimes with a » patch at

the base and a large rounded spot beyond the middle lighter in colour; the upper surface somewhat

thickly clothed with rather long, coarse, semierect, yellowish scales, which are blunt at the tip and serially

arranged on the elytra; the oral organs, legs, and antenne flavo-testaceous; the under surface clothed

with small appressed yellowish scales. Head closely, rather finely punctate, the vertex deeply canali-

culate; antennz short, joint 3 very small, shorter than 2, 4-10 short and moderately serrate,

11 obliquely emarginate on the outer side beyond the middle. Prothorax subquadrate, transversely

convex; the sides abruptly constricted in front, rounded at the middle, and sinuous and slightly

converging behind; the anterior angles acutely produced in front; the hind angles obliquely truncate,

the outer angle subrectangular; the disc finely canaliculate, the channel becoming deeper at the base;

the surface very closely, rather finely punctate. Scutellum finely longitudinally carinate. Elytra short,

about one-half longer than the prothorax, oval, convex, widest at one-third from the base, with closely-packed

rows of coarse deep punctures; the interstices very narrow, shining, and almost smooth, each bearing a

series of coarse, semierect scales, each of which is inserted near a minute smooth granular elevation ; the

humeri obtuse. Beneath coarsely, closely punctate; propleure with deep oblique grooves for the reception

of the anterior tarsi. Tibise slender at the apex, fringed on the outer edge with piliform scales, which are

‘blunt at the tip.

Length 13-27, breadth 7-1 millim.

Hab. Mexico, Teapa in Tabasco (coll. Janson) ; Guatemata, San Gerdénimo, Capetillo,

Duefias, Guatemala city (Champion).—AMAzons, Santarem.

Found in plenty by myself in Guatemala, upon the sandy banks of streams and also

on the wing towards evening. Smaller and more convex than MW. scobinula ; the upper

surface clothed with much coarser scales ; the elytra less elongate, more oval, still more

coarsely seriate-punctate, the interstices shining and almost smooth, the scales much

fewer in number. An example from Duefias is figured.

Group ALAINI.

ALAUS.

Alaus, Eschscholtz, Thon’s Archiv, ii. 1, p. 83 (1829); Candéze, Monogr. Elat. i. p. 211; Révis.

Elat. p. 117.-

Calais, Castelnau, in Silb. Rev. Ent. iv. p. 9 (1836); Candéze, Monogr. Elat. i. p. 239.

A genus containing some of the finest known forms of Elateride. Of the 116 described

species, thirteen only are American. The American species chiefly differ from those of

270 SERRICORNIA.

the Old World in the absence of propleural grooves for the reception of the antenne,

and were at one time separated by Candéze under the name Calais. The North-

American species are of large size and have an ocellated spot on either side of the

thorax; one of these extends into Mexico. Our three other species, of each of which

I have only seen a single example, are of a South-American type. In some specimens

of various species the mesosternal suture is almost or quite obliterated, and on

this account the genus Alaus is placed by Leconte and Horn in their Tribe

“ Chalcolepidiini.”

Prothorax with an ocellated spot on either side; size very large . . . . - . « Jusciosus.

Prothorax without ocellated spots; size smaller.

Elytra long and subparallel; upper surface with whitish scales, variegated with

brown. . 1 ew ee ee ee ee ee ee ee ee ee plebejus.

Elytra shorter and narrowing almost from the base.

Upper surface black, variegated with blackish-brown and white scales ; suture

not carinate at the base 2 ww. we ee ee ee ee Ut OL.

Upper surface in great part ferruginous, uniformly clothed with minute golden-

green scales; suture strongly carinate at the base. . . . . . . . .) (Suturalis.

1. Alaus lusciosus.

Elater lusciosus, Hope, in Griff. Anim. Kingd. i. p. 3638, t. 31. fig. 5°.

Alaus lusciosus, Cand. Révis. Elat. p. 153°.

Alaus gorgops, Lec. Journ. Acad. Phil. 2nd ser. iv. p. 35 (1858) *.

Hab. NortH AMERICA, Kansas °, South-east United States 2, Texas.—Mexico ! (Sallé,

ex coll. Sturm; coll. Janson).

I have seen six specimens of this species from Mexico, not one of which is ticketed

with any definite locality. A. lusciosus is probably nothing more than a variety of

A. oculatus, Linn.

2. Alaus plebejus. (Tab. XI. fig. 11,2.)

Alaus plebejus, Cand. Révis. Elat. p. 152°.

Hab. Nicaragua, Chontales (Belt) South America, Cayenne !.

One female specimen from Chontales, differing from the type in having the thorax

and elytra less distinctly variegate with brown scales.

3. Alaus nietoi. (Tab. XI. fig. 15, 2.)

Calais nietoi, Sallé, Rev. et Mag. Zool. 1873, p. 15, t. 9. figg. 4, 4a’.

Alaus nietoi, Cand. Révis. Elat. p. 73°.

Hab. Mexico, Orizaba (Sallé1 2).

The type of this species, a female, is contained in our collection. It has the apex

of the abdomen truncate and fimbriate.

ALAUS.—HEMIRHIPUS. val

4. Alaus suturalis. (Tab. XI. figg. 13, 13a, 2.)

Moderately elongate, black ; the prothorax ferruginous, with the base and lateral margins very narrowly,

and a narrow longitudinal median vitta not reaching the base, black; the elytra ferruginous, with the base

and suture very narrowly, and also the apex, black ; the upper surface thickly and uniformly clothed with

minute golden-green scales; the pro-, meso-, and metapleure, and also the ventral segments at the sides,

clothed with greenish scales; the antenna with joints 4-11 thickly clothed with purplish-brown

pubescence; the legs pitchy-brown. Head triangularly depressed in front, densely, minutely punctate,

with scattered coarser punctures intermixed; antenne moderately elongate, joints 2 and 3 small and

very short, 3 acutely and obliquely produced on the inner side, 4~11 broadly and obliquely lamellate,

11 constricted beyond the middle. Prothorax nearly one-third longer than broad, convex, subparallel,

the sides rounded in front and sinuate behind, the lateral margins thickened at the base, the hind angles

acutely produced and divergent; the entire surface densely, minutely punctate, with scattered coarser

punctures intermixed. Scutellum declivous, obtuse behind, almost smooth. Elytra not twice the length

of the prothorax, narrowing from the base, bluntly rounded and divaricate at the apex, the sutural angles

rather sharp; finely punctate-striate, the punctures not very closely placed, and becoming coarser and

deeper towards the sides; the interstices feebly convex, densely, minutely punctate ; the suture acutely

raised in front; the disc flattened and declivous almost from the base. Beneath sparsely, finely punctate,

the pleurs densely punctured ; the propleurs not grooved ; the fifth ventral segment truncate at the apex

and thickly fringed with long hairs.

Length 134, breadth 32 millim. ( 9.)

Hab. Nicaraaua, Chontales (Belt).

One worn specimen. Allied to 4. glaucus, Cand., and A. nietoi, Sallé.

HEMIRHIPUS.

Hemirhipus, Latreille, Régne Anim. iv. p. 454 (1829); Candéze, Monogr. Elat. i. p. 246; Révis.

Elat. p. 153.

Thirteen species of Hemirhipus are enumerated by Candéze, all American, the genus

ranging from New York to Uruguay; with two exceptions, all are tropical. In

addition to the three species mentioned below, two others are given by Candéze

from within our limits; these are H. rojasi, Cand., from Merida, Yucatan (probably

in mistake for Merida, Venezuela), and H. fairmairei, Cand., from “ Central America ;”

as regards the latter, all the specimens I have seen are labelled “ New Granada,” and

we have no evidence of the occurrence of the insect so far north as Panama.

Scutellum vertical in front; metasternum not deeply sulcate . . . . . . . dimaculatus.

Scutellum declivous; metasternum very deeply sulcate.

Elytra testaceous, with some oblong spots at the base, and three narrow zigzag

fascize on the posterior half, brown or piceous ee . fascicularis.

Elytra black, with some elongate streaks at the base, and a zigzag fascia beyond

the middle, testaceous. . . . . . - ee ew ew ew eee ee) COCO US.

1. Hemirhipus bimaculatus. (Tab. XI. fig. 17, ¢.)

Hemirhipus bimaculatus, Cand. Monogr. Elat. i. p. 35"; Reévis. Elat. p. 154°.

Hab. Mexico? 2,

The type of this species, a male, is still unique in the Janson collection.

272 SERRICORNIA.

2. Hemirhipus fascicularis.

Elater fascicularis, Fabr. Mant. Ins. i. p. 171"; Ent. Syst. i. 2, p. 216°; Oliv. Ent. ii. no. 31, p- 8,

t. 5. fig. 56°.

Hemirhipus fascicularis, Latr. Régne Anim. iv. p. 454*; Cand. Monogr. Elat. i. p. 252, t. 5. fig. 2°;

Révis. Elat. p. 154°; Lec. Trans. Am. Phil. Soc. x. p. 485”.

Hemirhipus venosus, Cast. in Silb. Rev. Ent. iv. p. 13°.

Hab. Norra America, New York, Baltimore’, Maryland, North Carolina’, Texas 7.—

Mexico §, Temax in North Yucatan.—Amazons ; Braziu®.

We have received two specimens of this species from Yucatan.

3. Hemirhipus decorus. (Tab. XI. fig. 19, 3.)

Hemirhipus decorus, Cand. Monogr. Elat. i. p. 2547; Révis. Elat. p. 155”.

Hab. Mexicot?; Nicaraaua, Chontales (Z. I. Janson).

There is a Nicaraguan specimen of this species in the Janson collection; it is of

the male sex and is figured on our Plate.

CHALCOLEPIS.

Chalcolepis, Candéze, Monogr. Elat. i. p. 244 (1857); Révis. Hlat. p. 159.

This genus contains a single species, peculiar to Central and South America.

1. Chalcolepis luczoti. (Tab. XI. fig. 16.)

Chalcolepis luczotii, Cand. Monogr. Elat. i. p. 2451; Révis. Elat. p. 159°.

Hab. Mexico (coll. Janson) ; Guavemaua, Purula and Senahu in Vera Paz (Champion) ;

Nicaragua (Sallé?), Chontales (Belt, Janson); Costa Rica (Van Patten); Panama

Bugaba (Champion), Chiriqui (Trétsch).—Soura Ammrica, Colombia 2, Cayenne !,

Varies in the sculpture of the thorax and in the form of the scutellum; in some

specimens the sides of the thorax are angulate before the middle. An example from

Nicaragua is figured.

Group CHALCOLEPIDIINI.

CHALCOLEPIDIUS.

Chalcolepidius, Eschscholtz, in Thon’s Archiv, ii. 1, p. 33 (1829) ; Candéze, Monogr. Elat. i. p. 259,

This genus contains upwards of sixty described species, all American, ranging from

the Southern United States to Chili and Uruguay ; one species, the South-American

C. erythroloma, Cand., has been introduced into the Sandwich Islands, and has been

described under a separate name, ©. albertisi, Cand. Thirty-two species are here

enumerated from within our limits, more than half of which are exclusively Mexican.

They may be conveniently grouped by the form of the scutellum, the grooving or not

of the propleure, and the male characters. The surface in many species is clothed

CHALCOLEPIDIUS. 273

with two very different forms of scales—one minute and usually opalescent or metallic,

the other larger, more elongate, and opaque, white, luteous, or fulvous, these latter

often forming a marginal vitta on the thorax and elytra; the larger scales seem to be

loosely attached and easily abraded. Viewed under a microscope, with a $-inch

objective, the large scales are strongly transversely strigose, as well as longitudinally

striated, the small ones longitudinally striated only. Some of the species vary greatly

in the colour of the scales, and in one, at least, C. mexicanus, the males have the

whitish scales almost obliterated above. The elytra usually have the marginal carina

more or less deflexed anteriorly, becoming indistinct or almost obsolete in front; but

in several species (C. desmaresti, &c.) it is distinct to the base. The males of many

of the species are of extraordinary rarity; they may always be known from the

females by having the fifth ventral segment rounded at the apex, this segment being

broadly truncate and ciliate in the females. In addition to this, other sexual characters

are in most cases to be found in the clothing or armature of the tibie or tarsi, and

sometimes in the form of the antenne.

These insects form a characteristic feature in the fauna of the forest-region of

Central and South America. They are found crawling on fallen decaying trees, in

which the earlier stages are passed; some of the species, C. lacordairei, C. exquisitus,

C. silbermanni, &c., are often rather abundant where they occur.

The metamorphoses of C. approximatus (zonatus, Dugés) have been described and

figured by Dr. E. Dugés.

The following table is added to assist in the identification of the Central-American

species; but it must be remembered that the males of C. forreri, C. inops, C. murinus,

C. jansoni, C. mniszechi, C. lenzi, C. behrensi, and C. tenuis are unknown or undescribed,

and that no specimens of either sex of C. lenzi, C. behrensi, C. mniszechi, and C. inops

are available for examination :—

1. Scutellum horizontal, subtriangular or obcordate, usually more or less bilobed

in front.

a. Antenne serrate in both sexes; apical joint of each tarsus and the anterior,

or the anterior and intermediate, tibize (except in C. web di) ciliate in

the 3*.

a’. Propleure grooved or plicate in front for the reception of the basal

joints of the antenne.

a'. Antenne with the third joint as long as the fourth.

a", Prothorax and elytra with a marginal band of fulvous, luteous,

or whitish scales.

a‘. Scales on the epipleure and under surface similar.

a’, Marginal bands on the prothorax extending to the base.

a’. Elytra with a line of elongate fulvous or whitish scales on

each of the strie . . . - © «ee © «© « «© © bonplandi.

* Tn the species of which the males are known.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1894. QN

274 SERRICORNIA.

b°. Elytra without a line of lighter scales on each of the strie .

6°. Marginal bands on the prothorax not extending to the base,

narrowed behind.

c’. Elytra with a line of elongate white scales on each of the

strie, the white scales sometimes covering the whole of

the surface, the interstices without minute darker scales.

d°, Elytra without a line of lighter scales on each of the striz,

the disc uniformly clothed with minute greenish or

olivaceous scales . . . 2 .

b*. Seales on the epipleure similar to those on the elytral margins.

*, Elytra punctate-striate, with at least the alternate interstices

raised.

e°. Hind angles of the prothorax extending beyond the humeri ;

elytra] interstices subequal . . . . :

f°. Hind angles of the prothorax not extending beyond the

humeri; alternate elytral interstices broader and more

raised . ae

d’. Elytra very lightly striate- punctate, the interstices quite flat .

6", Prothorax and elytra without a marginal band of lighter scales.

ce’, Elytra with interstices equal, slightly raised ; deeply punctate-

striate.

e’. Form elliptic, very broad; disc of the prothorax coarsely longi-

tudinally wrinkled ; scales variable in colour—usually blue.

f’. Form oval, broad; disc of the prothorax smoother ; scales

variable in colour—usually golden-green or violaceous .

g’. Form oblong-oval ;

d‘, Alternate elytral interstices more or less raised.

scales greenish

i’, Strive rather deeply impressed, the punctures subapproximate.

g°. Scales olive-brown.

a’. Alternate interstices moderately costate

6’. Alternate interstices strongly costate

MS Scales slaty-blue woe ee Loe .

. Strize almost obsolete, the punctures very fine and widely

separated ;

lights . .

6", Antenne with the third joint small, shorter than the fourth, in some

species not much longer than the second.

ce, Prothorax and elytra with a marginal band of fulvous, luteous, or

whitish scales.

e’. Marginal bands on the prothorax contiguous to the outer edge

and extending to the base, widened behind; the scales on the

under surface, like those on the margins, elongate, white .

f*. Marginal bands on the prothorax extending obliquely from

opposite the eyes to near the base, narrowed behind; the

scales on the under surface minute, olivaceous or greenish

scales olivaceous-green, purplish in certain

lafarget.

rugatus.

eschscholtzi.

limbatus.

approximatus.

webbi.

lacordairei.

exquisitus.

virens.

silbermanni.

morio.

pruinosus.

forreri.

virginalis.

angustatus.

CHALCOLEPIDIUS.

d", Prothorax and elytra without a marginal band of lighter scales ;

the elytral interstices equal.

g’. Prothorax dilated at the sides; elytral strie distinctly punctured

at the sides only .

h*. Prothorax not dilated at the sides ;

tured throughout . se ew we ee

Y. Propleuree not grooved in front; antenne with the third joint as long

as the fourth; scales uniformly glaucous-green ; sutural angles of

the elytral sharply mucronate . - oe an .

6. Antenne pectinate, and the tibiz and tarsi simple, i in the 3; propleuree

not grooved in front ; antennze with the third joint very short .

2. Scutellum declivous from about the middle forwards,

not grooved in front;

elytral striz distinctly punc-

obcordate ; propleurse

antenne with the third joint shorter than the

fourth; anterior and intermediate tibiz abruptly widened on the inner

side at the apex in the ¢ . . oe ee

3. Scutellum tumid in the middle, declivous anteriorly, scarcely transverse .

4. Scutellum strongly transverse; antenne with the third joint very much

shorter than the fourth; propleure not or shallowly grooved in front ;

anterior tibize denticulate or simple in the ¢ *.

c!, Form oval or oblong oval.

c', Prothorax and elytra with a marginal band of whitish scales (obsolete

in the ¢). . . .

d", Prothorax and elytra without a marginal band of lighter scales,

é", Sides of the prothorax strongly sinuate behind, the hind angles

abruptly divergent; elytral interstices equal.

. Surface of the prothorax uneven .

. Surface of the prothorax even .

fi Sides of the prothorax moderately or feebly sinuate behind, the hind

angles not abruptly divergent.

k*, Elytral interstices subequal ; sutural angles blunt or rectangular.

j. Elytra narrowing from about the middle.

a’. Size very large; scales uniformly blue or green . . « «

j°. Size moderate ;

each of the strie . 2... 1 1 ee ew ee

k’, Elytra narrowing from the base.

k°, Interstices convex ; punctures of the striz fine .

i’. Interstices almost flat; punctures of the strize rather coarse

scales olivaceous-green, sometimes white along

i’, Alternate elytral interstices broader and more convex; sutural

angles sharp . ... . » 0 ©

d'. Form elongate, narrow, subparallel ; hind angles of the prothorax abruptly

divergent.

e!, Elytra lightly punctate-striate, the interstices almost flat; scales of the

upper surface rather coarse, those of the under surface white and

elongate; propleurz not grooved in front . . . . . «. .

inops.

murinus.

jansont.

boucardi.

desmaresti.

mniszechi.

mexicanus.

lenzi.

behrensi.

jekel.

rodriguezi.

attenuatus.

cuneatus.

oxydatus.

dugesi.

275

* Tn the species of which the males are known.

2N2

276 - SERRICORNIA.

f". Elytra deeply punctate-striate, the interstices convex; scales of the

upper and under surfaces minute; propleure shallowly grooved

anteriorly. . 2. 2 6 + ee 6 + ee ew ew we ew wwe CONUS.

1. Chalcolepidius bonplandi.

Chalcolepidius bonplandii, Guér. Rev. et Mag. Zool. vii. p. 17*; Cand. Monogr. Elat. i. p. 278,

t. 6. fig. 3°; Révis. Elat. p. 166°; Bull. Soc. Ent. Belg. 1886, p. lxxi*.

Chalcolepidius juani, Cand. Ann. Soc. Ent. Belg. 1889, p. 79°.

Hab. Mexico, Cosamaloapam in Vera Cruz (Sallé) ; British Honpuras, Belize, Cayo

(Blancaneauz); Guatemata® (coll. Janson), Panzos, Teleman, Chacoj, San Juan,

Senahu, and Cubilguitz in Vera Paz (Champion), Coban (Champion, Conradt) ;

Nicaraaua (Sallé), Chontales (Belt, E. M. Janson); Costa Rica (Sallé).—Co.omBia !~,

Carthagena.

We have received a large number of specimens of this species; it is a common

insect on the Atlantic slope of Guatemala and also at Chontales. C.juant, Cand., a

specimen of which determined by the author is before me, is based upon abraded

examples of C. bonplandi, with the marginal stripe of the thorax and elytra slightly

paler than usual. The two forms were collected together by myself at San Juan in

Vera Paz. I have seen five males, three in the Janson collection and two in our own.

In one specimen from Chontales the scales on the dorsum are violaceous. This species

differs from C. rugatus in having minute metallic scales on the dorsum of the thorax

and on the elytral interstices (in C. rugatus and its variety pistorius the scales on these

parts are elongate and white); the marginal stripe on the thorax is also broader, and is

widened posteriorly. Worn specimens are scarcely distinguishable from C. rugatus.

2. Chalcolepidius lafargei. (Tab. XI. fig. 18, ¢.)

Chalcolepidius lafargi, Chevy. Col. Mex. Cent. ii. fase. 8, no. 196 (Sept. 1835) *; Cand. Bull. Soc.

Ent. Belg. 1886, p. Ixxi’.

Chalcolepidius eschscholtzii, var. lafargei, Cand. Monogr. Elat. i. p. 279°.

Hab. Mexico? (Sallé, ew coll. Sturm), Tampico (coll. Janson), Tuspan! (Sallé),

Jalapa (Hoge).

A male from Jalapa is figured.

3. Chalcolepidius rugatus. (Tab. XI. figg. 20, 9 ; 21, var. pistorius, 3 .)

Chalcolepidius rugatus, Cand. Monogr. Elat. i. p. 280°; Révis. Elat. p. 167°; Bull. Soc. Ent.

Belg. 1886, p. Ixxii’,

Hab. Mzxico}, Chiapas?3 and Tabasco 2 3 (Sallé), Temax in North Yucatan

(Gaumer) ; Brivis Honpuras (Dyson, in coll. Janson), Cayo, Belize, R. Sarstoon,

R. Hondo (Blancaneaus) ; Guatemaza? °, Chiacam in Vera Paz ( Champion).

CHALCOLEPIDIUS. 277

Var. The marginal band of scales on the prothorax and elytra white.

Chalcolepidius pistorius, Cand. Bull. Soc. Ent. Belg. 1890, p. clxxxiv *.

Hab. British Honpuras* (coll. Janson), R. Sarstoon (Blancaneaux); GUATEMALA,

Panzos, Teleman, Chacoj, and Sinanja in Vera Paz (Champion).

With a long series of specimens it is not possible to separate C. pistorius from

C. rugatus. In freshly emerged examples the whole of the upper surface, including

the convex elytral interstices, is densely, uniformly covered with elongate white scales.

In typical C. rugatus the marginal stripe is fulvous or luteous, that of the thorax

narrowing posteriorly; in our two specimens from Tabasco the marginal stripe is

tawny-brown. The scales of the under surface are chocolate-brown. I have seen

three males only—two collected by myself in the Polochic Valley, and one by

Mr. Gaumer in Yucatan. We figure two examples: a female of the typical form,

from Chiacam, and a male of the var. pistorius, from Panzos.

4, Chalcolepidus eschscholtzi.

Chalcolepidius eschscholtzii, Chevr. Coll. Mex. Cent. i. fasc. 1, no. 36' (Jan. 1833); Cand. Monogr.

Elat. i. p. 279, t. 5. fig. 8°; Révis. Elat. p. 167°; Bull. Soc. Ent. Belg. 1886, p. Ixxi’*.

Hab. Muxico?, El Chico in Vera Cruz (Lesweur'), Cordova (Sallé, Hoge), Jalapa

(Hoge), Atoyac in Vera Cruz (H. H. Smith), Vera Cruz? 4.

_ This variable species is apparently confined to the Atlantic slope of Mexico ;

C. lafargei is probably an extreme variety of it. ‘The marginal stripe in C. eschscholtz

is usually more or less luteous or fulvous, but is sometimes tawny or almost black; in

C. lafargei it is white. The thoracic stripe is less narrowed posteriorly in C. lafarget and

extends to the base. The dorsum is entirely clothed with minute metallic scales, which

vary greatly in colour. The scales of the under surface are greenish or olivaceous,

as in C. bonplandi. We have received many specimens of both C. eschscholtzi and

C. lafargei, including four males of the former and two of the latter.

5. Chalcolepidius limbatus.

Chalcolepidius limbatus, Eschsch. in Thon’s Archiv, ii. 1, p. 83°; Er. Zeitschr. fiir Ent. iii. p. 80’;

Cand. Monogr. Elat. i. p. 272°; Révis. Elat. p. 164°; Bull. Soc. Ent. Belg. 1886, p. Ixxi’.

Elater porcatus, Oliv. Ent. ii. no. 31, p. 14, t. 7. fig. 74°; Drury, Exot. Ins. ii. p. 70, t. 47.

fig. 6". |

Elater striatus, Fabr. Syst. Eleuth. ii. p. 226°.

Chalcolepidius angustior, De}. Cat. 3rd edit. p. 100°.

Hab. Mexico ® ° (coll. Janson, ex Dejean) ; CENTRAL AMERICA, Bay of Honduras 7.—

Sour America 4 5, Colombia ? 3 ®, Venezuela, Guiana? 8, Brazil 2 3 5, Uruguay 4.

There is an abraded male example of this species in the Janson collection, from that

278 SERRICORNIA.

of Dejean, labelled as from Mexico. The synonymy, that referring to Dejean excepted,

is given on the authority of Candéeze. ‘The figure and description of E. porcatus,

Drury, from the Bay of Honduras, would apply equally well to C. bonplandi, Guér.,

from which the present species chiefly differs in having the epipleure clothed with

elongate luteous scales and the marginal carina of the elytra more deflexed anteriorly.

6. Chalcolepidius approximatus. (Tab. XI. fig. 22, 2.)

Chalcolepidius approximatus, Er. Zeitschr. fiir Ent. ii. p. 82°; Cand. Monogr. Elat. i. p. 2757;

Bull. Soc. Ent. Belg. 1886, p. Ixxi’.

Chalcolepidius zonatus, var. 6, Cand. Révis. Elat. p. 164°.

Chalcolepidius zonatus, Dugés, Ann. Soc. Ent. Belg. 1885, 2, p. 32, t. 2. fig. 85 * (3) ”.

Hab. Muxico! 23 (Sallé, ex coll. Sturm), Zapotlan in Colima (Hége), Matamoros

Izucar (Sallé, Hoge), Puebla (Sallé*; coll. Janson), Cuernavaca in Morelos (Hége),

Venta de Zopilote in Guerrero (H. H. Smith), Tupataro in Guanajuato (Dugés®).

This species, of which I have seen nine females and five males, is very closely allied

to the South-American C. zonatus, Eschsch.; but differs from it in having the head

more deeply excavate, the thorax more parallel, with the hind angles less divergent, less

thickened, and more acute, the elytra with the ninth interstice costate and the apices

more rounded, and the minute scales of the upper and under surfaces more obscurely

coloured. In both species the epipleure are clothed with elongate white scales};

the male characters are similar. In the Colima specimens the elongate white scales on

the elytral strize are almost obliterated on the disc. The white marginal stripe of the

elytra is always divided down the middle by the raised ninth interstice. In one of

the two examples from Cuernavaca the propleure have each a longitudinal band of

white scales in the centre. The metamorphoses of this insect have been fully

described by Dr. E. Dugés °, who gives numerous figures of the larva and pupa (op. cit.

fige. 16-34). A female from Cuernavaca is figured.

7. Chalcolepidius webbi. (Tab. XI. fig. 23, ¢.)

Chalcolepidius webbii, Lec. Proc. Acad. Phil. vi. p. 223 (1854)"; Cand. Monogr. Elat. i p. 292°;

é . 1. p. ;

Révis. Elat. p. 164°; Bull. Soc. Ent. Belg. 1886, p. lxxiv*.

Chalcolepidius apacheanus, Casey, Ann. New York Acad. vi. p. 16°.

Hab. Nort America, California (coll. Janson, ex Horn), between San Diego 2-4 and

Kl Paso 1, Arizona °.—Mexico, Chihuahua city (Hége).

We have received three female specimens of this insect from Chihuahua, and there

is a Californian specimen of the same sex in the Janson collection.

* This figure is incorrect, the anterior and intermediate tibie only being ciliate in the male.

T In Candéze’s table (Bull. Soc. Ent. Belg. 1886, p. Ixvii) the species should follow C. zonatus, in sect. dd.

CHALCOLEPIDIUS. 279

C. apacheanus, Casey, is based upon abraded examples of this species; our Chihuahua

specimens are in similar condition, owing to immersion in alcohol.

8. Chalcolepidius lacordairei. (Tab. XII. fig. 1, var., 2.)

Chalcolepidius lacordairei, Cand. Monogr. Elat. i. p. 281, t. 5. figg. 6, 6 a-g*; Révis. Elat. p. 167? ;

Bull. Soc. Ent. Belg. 1886, p. Ixxiii*. |

Hab. Mexico! (coll. Janson), Cerro de Plumas (Hége), Dos Arroyos in Guerrero

1000 feet (7. H. Smith); British Honpuras, R. Sarstoon (Blancaneaux) ; GUATEMALA

(Sallé ; coll. Janson), El Tumbador, Paraiso, El Reposo, Las Mercedes, Cerro Zunil,

San Isidro, Mirandilla, San Cayetano, Zapote, San Gerdénimo (Champion), Capetillo

(Champion, Rodriguez), Panzos (Conradt); Nicaragua, Chontales (Belt), San Lorenzo

(E. M. Janson); Costa Rica (Pittier, in Mus. Brit.).

A common insect in the forest-region of the Pacific slope of Guatemala, also occur-

ring sparingly in Vera Paz. Candéze gives? San Diego, California, as a locality, but

this requires confirmation ; his southern localities refer to the subsequently described

C. exquisitus. I have seen about ninety specimens of C. lacordairei, five only of which

are males; the ciliate tarsus and tibia in this sex is shown by Candeéze, fig. 6 f.

The Mexican specimens in our collection are very dark in colour, those from Cerro

de Plumas resembling the variety mentioned by Candéze? as from California; the

latter have the scales brown on the dorsum and violaceous at the sides and beneath ;

the single specimen from Guererro has the scales olive-grey on the back and bronze

at the sides. We figure a variety from Dos Arroyos in Western Mexico.

9. Chalcolepidius exquisitus. (Tab. XI. fig. 24, ¢.)

Chalcolepidius exquisitus, Cand. Bull. Soc. Ent. Belg. 1886, p. xvii"; Ann. Soc. Ent. Belg. 1889,

p. 79°.

Hab. Nicaraaua, Chontales (Richardson) ; Costa Rica (coll. Janson, Sallé, Van Patten,

Pittier), Trazu (Rogers); Panama, Bugaba, Volcan de Chiriqui 2000 to 4000 feet

(Champion), Taboga I. (J. J. Walker), Obispo (Salvin), Veragua ?.

This species, or variety, replaces C. /acordairet in the southern portions of Central

America, the two insects apparently occurring together in Costa Rica and Nicaragua *.

All the specimens found by myself in the State of Panama, upwards of sixty, are

clothed with greenish scales—the colour varying to golden-green or olivaceous-green ;

in some of those from Nicaragua and Costa Rica the scales are bluish or violaceous,

these specimens resembling C. dacordairei in colour. The thorax, as noted by Candéze,

is usually much smoother than in C. /acordairei, but in some of the Panama specimens

it is coarsely longitudinally wrinkled on the disc; the elytra are distinctly more

* There are specimens of this species in the British Museum, and also in the Janson collection, labelled

«Guatemala (Scherzer)”; they are probably from Costa Rica.

280 SERRICORNIA.

attenuate behind. Upwards of eighty specimens of C. erquisitus are before me, only

three of which are males; it varies in length from 25-40 millim., and in breadth from

9-16 millim. In one specimen from Bugaba the elytra have a line of elongate white

scales near the margin in front. C. exquisitus is an abundant insect in the forest-region

of Chiriqui.

A male from the Volcan de Chiriqui is figured.

10. Chalcolepidius virens.

Chalcolepidius porcatus (Linn.), Cand. Monogr. Elat. i. p. 270°; Révis. Hlat. p. 163 (part.)*.

Elater virens, Fabr. Mant. Ins. i. p. 172°; Oliv. Ent. ii. no. 31, p. 15, t. 2. fig. 19, t. 5. fig. 55°.

Chalcolepidius virens, Cand. Elat. Nouv. iii. p. 22°; Bull. Soc. Ent. Belg. 1886, p. Ixxiii®.

Hab. Mexico ? (coll. Janson); Panama, Chiriqui (47be)—SoutH America ' ? ? ® to

Brazil.

Candéze in his “ Monograph ” treats this insect asa variety of the variable C. porcatus,

Linn. ; but he subsequently separated it as distinct, chiefly on account of the unicolorous

minute scales of the elytra. In C. porcatus and the closely allied C. awrulentus, Cand.,

the elytral strie have each a line of whitish elongate scales, the interstices with minute

metallic scales. I have seen three (2) specimens only of C. virens from within our

limits.

11. Chalcolepidius silbermanni. (Tab. XI. fig. 25, 2.)

Chalcolepidius silbermanni, Chevr. Col. Mex. Cent. ii. fasc. 8, no. 197 (Sept. 1835)+; Cand.

Monogr. Elat. i. p. 275°; Révis. Elat. p. 165°; Bull. Soc. Ent. Belg. 1886, p. Ixxii*.

Chalcolepidius sericeus, Er. Zeitschr. fiir Ent. iii, p. 83 (1841) °.

Chalcolepidius sulciger, De}. Cat. 3rd edit. p. 100°.

Hab. Mexico ? * 4 ®, Ciudad in Durango (forrer), Ventanas in Durango, Jalapa,

Oaxaca (Hoge), Amula, Omilteme, and Xautipa in Guerrero (H. H. Smith), Sante-

comapan, Vera Cruz, Juquila, Tehuantepec, Chiapas (Sallé), Cordova (Sallé, Hoge),

‘Temax in North Yucatan (Hoge), Tuspan'; Brivisa Honpuras (Blancaneauz) ;

GuATEMALA, Panzos, Chacoj, San Juan, Panima, and San Gerénimo in Vera Paz, El

Reposo, Pantaleon, Torola (Champion); Nicaragua, Chontales (Belt, E. M. Janson,

ftichardson) ; Costa Rica (Sallé); Panama, Volcan de Chiriqui, David (Champion),

Panama city (J. J. Walker), Taboga I. (Champion, J. J. Walker), Obispo (Salvin).—

CotomBia? 4; VENEZUELA *, La Guayra >.

This is the commonest species of the genus in Central America, extending north-

wards to Durango; it reaches an altitude of 8000 feet in some parts of Mexico. In

Guatemala the insect inhabits both the Atlantic and Pacific slopes, from the low hot

country to an elevation of 3000 feet. C. silbermanni varies greatly in size—from

CHALCOLEPIDIUS. 281

19-43 millim. in length, and from 6-14 millim. in breadth,—also in the sculpture of

the thorax, some specimens having the disc of the latter very coarsely longitudinally

wrinkled. The anterior and intermediate tibia, and the apical joint of each tarsus, are

ciliate in the male, characters not mentioned by Candéze or Erichson. In one specimen

from Juquila the scales on the upper and under surfaces are tinged with violaceous.

I have seen upwards of one hundred females, and thirteen males, of C. silbermannt.

A female from Pantaleon is figured.

12. Chalcolepidius morio.

Chalcolepidius morio, Cand. Monogr. Elat. i. p. 284"; Révis. Elat. p. 167°; Bull. Soc. Ent. Belg:

1886, p. xxiii’.

Hab. Mexico ! (coll. Janson, ex Laferté; Satlé, ex Sturm), Saato Domingo in Tehu-

antepec (Richardson), Oaxaca 23.

Five specimens of this species are before me, including one of the types from the

Laferté collection. The male was not known to Candéze; it has the anterior and

intermediate tibie, and the apical joint of each tarsus, ciliate. C. morio is very closely

allied to C. stlbermanni, from which it chiefly differs in having the alternate interstices

of the elytra more strongly costate.

13. Chalcolepidius pruinosus.

Chalcolepidius pruinosus, Er. Zeitschr. fiir Ent. iii. p. 84°; Cand. Monogr. Elat. i. p. 276°; Révis.

Elat. p. 165°; Bull. Soc. Ent. Belg. 1886, p. lxxii*.

Hab. Mexico 1-4, Etla, Parada (Sallé), Oaxaca (Sallé, Hodge, coll. Janson).

This insect is very closely allied to, and perhaps only a variety of, C. selbermannt,

from which it differs in its slaty-blue or greenish scales and more parallel shape. ‘The

male characters are similar.

14. Chalcolepidius forreri. (Tab. XII. fig. 5, 2.)

Chalcolepidius forreri, Cand. Bull. Soc. Ent. Belg. 1886, p. Ixxii’.

| Hab. Mexico, Tres Marias Is. (forrer ').

We have received two female specimens of this species. C. forreri is allied to

C. silbermanni and C. pruinosus, but differs from both in the broader and much more

feebly costate alternate elytral interstices; the elytra are impressed with rows of fine,

rather widely separated punctures, which are completely hidden by the scales.

15. Chalcolepidius virginalis, (Tab. XII. figg. 2, ; 38, 9, var.)

Chalcolepidius virginalis, Cand. Monogr. Elat. i. p. 288°; Révis. Elat. p. 168°; Bull. Soc. Ent.

Belg. 1886, p. Ixxiii®*.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1894. 20 ~~

282 SERRICORNIA.

Hab. Mexico, Merida in Yucatan ! 23 (Pilate, in coll. Janson; Sallé), Temax in North

Yucatan (Gaumer).

Var. The marginal band of white scales much narrower, the rest of the thorax and elytra, the base of the

latter excepted, clothed with minute greenish or cinereous scales.

Hab. Mexico, Oaxaca (Sallé), Tehuantepec (Sumichrast).

There is a female specimen of the typical form of this species in the Janson collec-

tion anda pair in our own. The male, as noted by Candéze, has the apex of the

anterior tibie and the apical joint of each tarsus fringed with long hairs. The upper

and under surfaces are clothed with elongate white scales, which form a broad marginal

stripe on the thorax and elytra; the elytral interstices and a broad median vitta on the

thorax are sparsely clothed with minute brassy scales. Of the variety we have received

two examples, both females. We figure two specimens: a typical male from Yucatan,

and a female of the variety, from Tehuantepec.

16. Chalcolepidius angustatus. (Tab. XII. fig. 4, 2.)

3. Chalcolepidius angustatus, Cand. Monogr. Elat. i. p. 290, t. 6. fig. 4°; Révis. Elat. p. 169°;

Bull. Soc. Ent. Belg. 1886, p. Ixxiv °.

?. Chalcolepidius circumductus, Cand. Monogr. Elat. i. p. 289*; Révis. Elat. p. 169°; Bull. Soc.

Ent. Belg. 1886, p. Ixxiv °.

Hab. Mexico (Deyrolle +, in coll. Janson), Cosamaloapan in Vera Cruz (Sallé), Vera

Cruz 5°, Oaxaca 1! 23,

With the types before me, Iam unable to separate C. circumductus from C. angus-

tatus; the description of the latter was made from two males (one abraded), that of

C. circumductus from a single female. C. angustatus has the marginal bands of scales

on the thorax and elytra almost white, and the minute scales on the dorsum greyish,

the bands in C. cireumductus being luteous and the minute scales olive-green. The

marginal bands on the thorax are rather narrow and extend obliquely from opposite the

eyes to near the base, narrowing behind. The alternate elytral interstices are rather

broader and more raised in C. circumductus than in C. angustatus, but with the addi-

tional material before me too much importance must not be placed on this character,

We figure a female example, the type of C. circumductus, Cand.

17. Chalcolepidius inops.

Chalcolepidius inops, Cand. Bull. Soc. Ent. Belg. 1886, p. Ixxiii’.

“Niger, squamulis minutissimis olivaceis omnino dense obductus; antennis articulo tertio quarto multo

breviore ; prothorace latitudine longiore, a basi arcuatim angustato, crebre punctulato, antice punctis

majoribus nonnullis adsperso, medio linea elevata, marginibus lateralibus anguste deplanatis; scutello

triangulari, medio sulcato et angulo antico bifido; elytris sulcatis, sulcis externis punctatis, interstitiis

sequalibus.—Long. 23, lat. 8 millim.”

Hab. Mexico, Sierra Madre de Chihuahua 1.

CHALCOLEPIDIUS. 283

According to Candéze, this species resembles C. virens, Fabr., in general facies, but

differs from that insect in the very short third joint of the antenne, this character

bringing it near C. angustatus, &c.

18. Chalcolepidius murinus. (Tab. XII. fig. 6, 3.)

Elongate-oval, bronze-black, densely, uniformly clothed above and beneath with minute brownish-cinereous

scales. Head densely punctured, very broadly triangularly depressed in front ; antennz strongly serrate,

the third joint small, very short, not half the length of the fourth, acutely triangular. Prothorax longer

than broad, moderately convex, subparallel behind, the sides feebly rounded and converging anteriorly,

slightly sinuate behind; the margins reflexed at the base; the hind angles sharp, not or scarcely

divergent; the base with a strongly bidentate median lobe; the surface closely, minutely punctate, and

obsoletely carinate down the middle. Scutellum obcordate, horizontal, deeply canaliculate anteriorly,

and obtusely bidentate in front, finely punctured. Elytra twice as long as the prothorax, subparallel in

their basal third, the sides gradually converging thence to the apex, the apices rounded; the marginal

carina deflexed anteriorly, obsolete in front; finely punctate-striate, the punctures deep and not hidden

by the scales ; the interstices equalin width, feebly convex, densely minutely punctate. Beneath densely,

finely punctate, the prosternum, the middle of the meso- and metasternum, and a space along the centre

of the ventral segments 1-4, smoother and almost glabrous. Propleurse grooved on the inner side in

front.

g. Antenne more strongly serrate; anterior and intermediate tibie, and the apical joint of each tarsus,

ciliate ; fifth ventral segment with a broad space in the middle, widened posteriorly and extending to the

apex, almost impunctate and glabrous.

Length 213-25, breadth 62-93 millim. (3 @.)

Hab. Mexico, Acapulco in Guerrero (Hdége).

Three specimens, one of which has been examined by Dr. Candéze and returned as

unknown to him, with the following remarks attached :—“ Near C. inops, but differing

from it in having the margins of the thorax not. flattened and all the elytral striz

punctured.”

19. Chalcolepidius jansoni. (Tab. XII. fig. 7, 2.)

Chalcolepidius jansoni, Cand. Révis. Elat. p. 165 (1874) *; Bull. Soc. Ent. Belg. 1886, p. Ixxiii®.

Hab. Nicaragua ? (Sallé), Chontales (Belt 1, £. M. Janson).

Fourteen specimens of this species are before me, all females. In this insect the

upper and under surfaces are uniformly clothed with minute, rather dull, subopalescent,

greenish scales. The sutural angles of the elytra are acutely produced. We figure

one of Candéze’s types. |

20. Chalcolepidius boucardi, (Tab. XII. fig. 12, ¢.)

Chalcolepidius boucardi, Cand. Révis. Elat. p. 169 (1874) *; Bull. Soc. Ent. Belg. 1886, p. lxxiv *.

Hab. Mexico, Cuernavaca (Boucard !*, Sallé).

A male example of this species is contained in the Sallé collection, presumably the

type. The anterior tibiz have a few short teeth on the inner edge.

202

284 - SERRICORNIA.

21. Chalcolepidius desmaresti. (Tab. XII. fig. 8, 9, var.; 9, ¢.)

Chalcolepidius desmaresti, Chevr. Col. Mex. Cent. ii. fasc. 8, no. 195 (Sept. 1835) *; Cand. Monogr.

Elat. i. p. 2697; Révis. Elat. p. 162°; Bull. Soc. Ent. Belg. 1886, p. lxix*. |

Chalcolepidius procerus, Er. Zeitschr. fiir Ent. iii. p. 84°.

Hab. Mexico *® (coll. Janson), Orizaba 123 (Sallé), Jalapa (Hoge, M. Trujillo), Mis-

antla (Hége); GuatemaLA, Purula in Vera Paz (Champion) ; Costa Rica (Van Patten,

coll. Janson).

In this species the ground-colour of the elytra varies from black to bright ferru-

ginous; the scales of the upper surface also vary in colour. The thorax has a

narrow bare space down the middle of the disc; this space, however, in freshly emerged

examples is sparsely clothed with scales. The male, three specimens of which are

before me, has the anterior and intermediate tibie abruptly dilated on the inner side at

the apex; neither the tibie nor tarsi are ciliate. We figure two examples: a typical

male from Misantla, and a female of a variety from Purula.

22. Chalcolepidius mniszechi.

Chalcolepidius mniszechi, Cand. Elat. Nouv. iii. p. 21 (1881)*; Bull. Soc. Ent. Belg. 1886,

p. lxix *.

“ Niger, squamulis olivaceis sparsis, striis elytrorum. marginibusque albicanti vestitus ; antennis nigris, articulo

tertio minuto; prothorace latitudine longiore, parallelo, apice rotundatim angustato, dorso sequali, angulis

posticis vix divaricatis ; scutello medio tumido; elytris striis parum punctatis, per paria approximatis ;

subtus albicans.”

Hab. Mexico (coll. Mniszech 12).

According to Candéze, this species resembles C. meaicanus in colour, but is broader ;

the size is not given.

23, Chalcolepidius mexicanus. (Tab. XII. figg. 10, 3; 11,2.)

Chalcolepidius mexicanus, Cast. in Silb. Rev. Ent. iv. p. 13 (1836)*; Cand. Monogr. Elat. i.

. p. 2687; Révis. Elat. p. 162°; Bull. Soc. Ent. Belg. 1886, p. Ixix*.

3. Chaleolepidius boisduvalii, De}j. “Cat, ord edit. p. 100°.

9. Chalcolepidius chevrolatii, De}. Cat. loc. cit.°.

Hab. Mexico 16, Orizaba (coll. Janson, ex Dejean), Vera Cruz, Mirador (Sa//é),

Jalapa (Hoge) ; Nicaraeua, Chontales (£. WM. Janson).

I have seen twenty specimens of this species, including seven males. All the females

have the sides of the thorax and elytra, and a line down each of the strie, clothed with

elongate white scales, the scales on the rest of the upper surface being minute and

olivaceous ; the males (the var. a of Candéze) have only the base of the thorax, the

scutellum, and the base, and sometimes the sides anteriorly, of the elytra, clothed with

white scales. The legs and under surface are thickly clothed with elongate white

CHALCOLEPIDIUS. 285

scales, with minute olivaceous scales intermixed; but in two of the females from

Jalapa, and in the two females from Chontales, the scales on these parts are nearly all

small and olivaceous. The anterior tibiz in the males are armed on the inner edge

with about ten fine sharp teeth, and the antenne in this sex have the joints from the

fourth considerably produced at their inner apical angles. C. mexicanus may be known

from C. oxydatus by the less acute sutural angles of the elytra, and from the South-

American C. lemoinei by the less divergent hind angles of the thorax. We figure a

male from Mirador and a female from Jalapa.

24. Chalcolepidius lenzi.

Chalcolepidius lenzi, Cand. Bull. Soc. Ent. Belg. 1886, p. lxix'.

“ Niger, squamulis minutissimis olivaceo-cinereis similiter et densissime vestitus ; antennis articulo secundo

brevissimo, tertio triangulari, sequentibus subquadratis ; prothorace latitudine longiore, basi constricto,

regulariter convexo, crebre punctulato et inequali, angulis posticis parvis fortiter divaricatis ; scutello

transverso ; elytris sulcatis, sulcis punctatis; subtus niger et squamulis concoloribus obductus.—Long. 40,

lat. 11 millim.”

Hab. Mexico, Sinaloa !.

Described from a single female example. Allied to C. rubripennis, Lec., from Lower

California.

25. Chalcolepidius behrensi.

Chalcolepidius behrensi, Cand. Bull. Soc. Ent. Belg. 1886, p. Ixx"'.

“ Niger, confertissime squamulis minutissimis olivaceis vestitus; antennis nigris, articulo secundo brevi, tertio

triangulari; prothorace longo, basi et apice angustato, equaliter convexo, confertissime punctulato ;

scutello transverso; elytris striato-punctatis ; subtus concolor.—Long. 30, lat. 84 millim.”

Hab. Mexico (Behrens').

“ Near C. lenzi, but smaller; the greenish scales less dense, the thorax much longer

and more narrowed in front, its surface not uneven, the elytra striated, but not

sulcate.”’

26. Chalcolepidius jekeli. (Tab. XII. fig. 13, ¢ .)

Chalcolepidius jekeli, Cand. Révis. Elat. p. 162 (1874)'; Bull. Soc. Ent. Belg. 1886, p. Ixx ’.

Hab. Guaremata 2, Las Mercedes and Zapote (Champion).

This large species closely resembles C. /acordairet, which occurs at the same localities

in Guatemala ; but may be easily known from that insect by its more elongate and

narrower form, and the differently shaped scutellum. Four female examples were

found by myself on the Pacific slope of Guatemala, and I believe it has also been found

by Sefior Juan Rodriguez. The original locality given by Candéze 1 was Colombia? A

female from Las Mercedes is figured.

286 | _ SERRICORNIA.

27. Chalcolepidius rodriguezi. (Tab. XII. figg. 16, ¢; 17, 2, var.)

Chalcolepidius rodriguezi, Cand. Bull. Soc. Ent. Belg. 1886, p. Ixx*.

Hab. Guatemata (Rodriguez1; coll. Janson).

There is a male example of this species in the Janson collection ; a female specimen

from the same collection differs from it in having a large admixture of elongate white

scales on both the upper and under surfaces. ‘This difference is apparently sexual, as

in C. mexicanus. The male has about eight fine sharp teeth on the inner edge of the

anterior tibie. C. rodriquezi is closely allied to C. mexicanus, but is less elongate and

less parallel, with the elytral interstices more equal in width.

28. Chalcolepidius attenuatus. (Tab. XII. fig. 18, ¢.)

Chalcolepidius attenuatus, Er. Zeitschr. fiir Ent. iii. p. 86*; Cand. Monogr. Elat. i. p. 267°;

Révis. Elat. p. 162°; Bull. Soc. Ent. Belg. 1886, p. Ixx*.

Hab. Mexico !~4, Oaxaca (coll. Janson).

There is a pair of this species in the Janson collection ; the male is figured.

29. Chalcolepidius cuneatus. (Tab. XII. fig. 14, 3.)

Elongate, narrow, attenuate behind, black, densely and uniformly clothed above and beneath with minute

brownish-cinereous scales. Head densely punctured, very broadly triangularly depressed in front ;

antenne strongly serrate, the third joint small, very short, not half the length of the fourth, acutely

triangular. Prothorax much longer than broad, feebly convex; the sides subparallel, rounded and con-

verging in front, and strongly sinuate behind; the margins very narrowly reflexed ; the hind angles

thickened, divergent, and subacute; the base with an obtusely bidentate median lobe; the surface densely,

minutely punctate. Scutellum strongly transverse, thickly punctured. Elytra nearly twice the length of

the prothorax, narrowing almost from the base, with the apices conjointly rounded, the marginal carina

obsolete in front ; punctate-striate, the punctures deep and not very closely placed, not hidden by the

scales ; the interstices equal in width, almost flat, densely minutely punctate. Beneath, including the

whole of the fifth ventral segment, densely minutely punctate, the prosternum and the middle of the

meso- and metasternum smoother and almost glabrous. Propleure not grooved in front.

Length 22, breadth 6} millim. (<¢.)

Hab. Mexico, Acapulco in Guerrero (/6ge).

One male example. Closely allied to C. attenuatus, Er., but differing from it in the

almost flat elytral interstices, and the coarser punctures of the strie. As in that

species, neither the tibiz nor the tarsi are ciliate in the male.

_ 80. Chalcolepidius oxydatus. (Tab. XII. fig. 15, 3.)

Chalcolepidius oxydatus, Cand. Monogr. Elat. i. p. 266°; Révis. Elat. p. 1617; Bull. Soc. Ent.

Belg. 1886, pp. lxvi, lxix®.

Hab. Nicaragua (Sallé), Chontales (Belt); Costa Rica, El General, Pacific slope

(Pittier, in Mus. Brit.) ; Panama, Bugaba, Tolé (Champton).—V ENEZUELA 1? 3,

The five specimens we have received of this species are all of the male sex. They:

CHALCOLEPIDIUS.—SEMIOTUS. 287

differ from the females in having the antenne more strongly serrate, and the anterior

tibiz armed with about ten fine sharp teeth. The tibie in both sexes are armed with a

few short teeth, those on the anterior pair being longer and more numerous in the males.

The upper surface is uniformly clothed with minute greenish scales, but in the Vene-

zuelan type a few elongate whitish scales (as noted by Candéze%) are distinctly visible

along the elytral margins. A male of a colour-variety from Tolé is figured.

31. Chalcolepidius dugesi. (Tab. XII. fig. 19, 2.)

Chalcolepidius dugesi, Cand. Bull. Soc. Ent. Belg. 1886, p. lxx’.

Hab. Mexico, Sonora (coll. Janson), Tupataro in Guanajuato (Dugés 1, Hoge).

We are indebted to Dr. Candéze for a specimen of this very distinct species, which we

figure; we have also received another from Herr Hodge, and there isa third in the

Janson collection, all females. The antenne are described as subpectinate in the male.

82. Chalcolepidius tenuis. (Tab. XII. fig. 20, 2.)

Very elongate, narrow, subparallel, Black, uniformly clothed above and beneath with minute brownish-

cinereous scales. Head densely punctured, very broadly triangularly depressed in front; antenne strongly

serrate, the third joint small, very short, not half the length of the fourth, acutely triangular. Prothorax

about one-fourth longer than broad, convex ; the sides subparallel to near the apex, abruptly obliquely

converging in front, slightly sinuous at the middle, and strongly sinuate before the base; the hind angles

thickened, abruptly and strongly divergent, sharp; the margins very narrowly reflexed; the base with an

obtusely bidentate median lobe; the surface densely, minutely punctate and with scattered coarse

punctures intermixed at the sides and upon the anterior part of the disc. Scutellum strongly transverse,

densely punctured. Elytra nearly twice the length of the prothorax, subparallel to beyond the middle

and gradually narrowing thence to the apex, the apices conjointly rounded, the sutural angle rather

sharp, the marginal carina not reaching the base; deeply punctate-striate, the punctures closely placed

and not hidden by the scales; the interstices equal in width, convex throughout, densely, very finely

punctate. Beneath densely punctured, the prosternum and the middle of the meso- and metasternum

smoother and almost glabrous. Propleure obsoletely grooved on the inner side before the apex.

Length 243, breadth 6} millim. (92.)

Hab. Mexico, Oaxaca (Hoge).

One rather worn female specimen. This species has quite the facies of the North-

American (C. viridipilis, from which it differs in the transverse scutellum and the

abruptly divergent hind angles of the thorax, characters bringing it near C. dugesi.

Dr. Candéze has returned the insect to me as unknown to him.

SEMIOTUS.

Semiotus, Eschscholtz, in Thon’s Archiv, ii. 1, p. 31 (1829) ; Candéze, Monogr. Elat. i. p. 292.

Eighty members of this purely American genus are enumerated by Dr. Candéze in

his Catalogue, but it is probable that several of them are nothing more thin local

varieties of widely distributed species. With one exception, the Chilian §. luteipennis,

Guér., all are from the tropical portions of the continent. Compared with Chalcole-

pidius, Semiotus is poorly represented in Central America, it having eight species only.

9288 . SERRICORNIA.

The genus ranges from the Mexican State of Vera Cruz to Chili; its headquarters

would appear to be in the forest-regions of Colombia and Ecuador. As in Chalcole-

pidius, the males of many of the species are of extreme rarity. The females have in

some cases two large, deep, oval or rounded, piliferous foveee on the fifth ventral

segment, these in certain species becoming confluent so as to form a cordate impression.

In S. insignis, S. dohrni, and S. chontalenus this segment is unimpressed in both sexes.

The apex of the fifth ventral segment is also usually subtruncate, or even slightly emar-

ginate, in the females. In Janson’s MSS. notes on Semiotus, and also in his collection,

the sexes are reversed. These insects, like Chalcolepidius, are found about fallen trees

in fresh clearings in the forest; they readily take to wing in the hot sun.

Head unidentate in front; elytra bimucronate at the apex ; size very large.

Elytra not distinctly striate throughout; prothorax with the black median

‘vitta uninterrupted . ce eee ee ew ww et

Elytra distinctly striate throughout; prothorax with the black median vitta

divided down the centre by arufous stripe . . . . « + + « + + «+ splendidus.

Head strongly and acutely bidentate in front.

Elytra unimucronate at the apex; size large or moderate.

Form very elongate; prothorax with five black spots, the outer two on —

either side sometimes coalescent; elytra with the suture and margins at

most narrowly black beyond the middle . . . . . «. . . + + «© tmsignis.

Form moderately elongate.

Prothorax with two black vitte, sometimes interrupted; elytra with the

suture and margins broadly black beyond the middle . . . . . . lafertei.

Prothorax with a median black vitta, sometimes divided along the middle by

a rufous stripe.

Elytra bivittate on the disc, the sutural interstice also partly or en-

tirely, and the margins partly, infuscate or black. . . . . . . dohrni.

Elytra quadrivittate, the suture and margins at most very narrowly

infuscate .

cuspidatus.

Elytra bimucronate at the apex; head, a median vitta on the prothorax, the

scutellum, and the apical half of the elytra black; size small .

Head bilobed in front.

superbus. Vv

. . Chontalenus.

woe ee ee we ee we we) Ligneus.

1. Semiotus cuspidatus. (Tab. XII. figg. 21; 21a, fifth ventral segment, ¢ .)

Eucamptus cuspidatus, Chevr. Col. Mex. Cent. i. fase. 1, no. 35 (Jan. 18383) *.

Semiotus cuspidatus, Cand. Monogr. Elat. i. p. 299°; Révis. Elat. p. 173°.

Pericallus dorsalis, Latr. Ann. Soc. Ent, Fr. iii. p. 140, nota’.

Hab, Mexico?#+4, Orizaba (coll. Janson), Santecomapan (Sallé), Cordova (Sallé,

Hoge), Coatepec (Hége), Zongolica in Vera Cruz!; GvaremaLa, Purula, Sabo, and

Sinanja in Vera Paz, Zapote, Cerro Zunil (Champion), Capetillo (Rodriguez), El Rincon

in San Marcos (Richardson). |

SEMIOTUS. _ 289

This fine species inhabits Guatemala and Southern Mexico; Candéze23 also quotes

Colombia, Ecuador, and Peru, but these localities probably refer to the following,

S. splendidus. In Guatemala the insect inhabits both the Atlantic and Pacific slopes,

and reaches an altitude of about 4000 feet in the mountains. The males, like those of

many species of Chalcolepidius, are extremely rare; the females. have a deep, cordate,

piliferous impression close to the apex of the fifth ventral segment, and the apex of

this segment feebly emarginate. The anterior black spot on the head is often obsolete.

I have seen forty-two specimens of S. cuspidatus, of which one only is of the male sex.

A female from Cerro Zunil is figured.

2. Semiotus splendidus. (Tab. XII. figg. 23; 23a, fifth ventral segment, 2 .)

Semiotus splendidus, Cand. Elat. Nouv. iii. p. 23'; Cat. Méthod. Elat. p. 40 (1891) *.

Hab. Costa Rica (Sallé, Van Patten); Panama (coll. Janson), Chiriqui (coll. Janson,

Ribbe), Volcan de Chiriqui 2000 to 3000 feet (Champion), Veragua 2.—Ecuapor }.

Found in plenty by Van Patten and myself. S. splendidus is a close ally of 8. cus-

pidatus, but differs from it in having the elytra rather deeply punctate-striate through-

out, with the interstices moderately convex, and the broad black median vitta on the

thorax divided down the middle by a rufous stripe, this colour usually extending to the

scutellum. ‘The elytra in the Chiriqui specimens have a common subtriangular black

patch at the base ; but in the Costa Rican examples this is almost obsolete. In one

specimen from the Volcan de Chiriqui the median rufous stripe on the thorax is very

narrow, the scutellum is entirely black, and the common triangular black patch on the

elytra is as elongate as it is in S. cuspidatus. The anterior black spot on the head is

often obsolete. I have seen thirty-seven specimens of S. splendidus, four only of which

are males. The female characters are similar to those of S. cuspidatus. A specimen

from the Volcan de Chiriqui is figured.

8. Semiotus insignis. (Tab. XII. fig. 25, 2, var. longus.)

Semiotus insignis, Cand. Monogr. Elat. 1. p. 311, t. 6. fig. 9°; Révis. Elat. p. 176°.

Var. Semiotus longus, Cand. Monogr. Elat. i. p. 815°; Révis. Elat. p. 178 *.

Hab. Mexico!?4, Cordova, Tuxtla (Sal/é); Guarmmata, Teleman and Senahu in

Vera Paz (Champion); Nicaraeua, Chontales? (Belt, E. M. Janson); Costa Rica (coll.

Janson) ; Panama, Bugaba, Volcan de Chiriqui (Champion).

Not uncommon in Nicaragua and the State of Panama. The variety longus, Cand.,

has the two black spots on each side of the disc of the thorax confluent, so as to form

two longitudinal vitte. The fifth ventral segment is unimpressed, and feebly truncate

at the apex, in the female. Amongst the forty-nine specimens before me, one only is

of the male sex. A female example of the var. /ongus, from Tuxtla, is shown on our

Plate.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, November 1894. 2P

290 SERRICORNIA.

4. Semiotus lafertei. (Tab. XII. figg. 22; 22a, fifth ventral segment, 9 .)

Semiotus lafertei, Cand. Monogr. Elat. i. p. 313*; Révis. Elat. p. 177.

Hab. Mexico}? (coll. Janson, ex Laferté), Cosamaloapan, Cordova, and Tuxtla in

Vera Cruz (Sallé); GuatemaLa, Coban, Senahu, Panima, and Purula in Vera Paz

(Champion) ; Nicaracua, Chontales (Belt, E. M. Janson, Richardson) ; Costa Rica (Van |

Patten), Caché (Rogers); Panama (coll. Janson), Bugaba, Volcan de Chiriqui (Champion),

Chiriqui (ibbe).—CoLomBIA.

This insect is abundant in Nicaragua and the State of Panama; in Guatemala and

Mexico it appears to be confined to the Atlantic slope. 8. lafertei is, no doubt, a

variety of the S.-American S. affinis, Guérin (=candezei, Kirsch), from which it differs

in having the marginal spot on the thorax obliterated above, the sutural stripe not

extending to the base, and the cavity surrounding the scutellum not black. The

thoracic vittee are sometimes interrupted. Candéze in his ‘Catalogue’ (1891), p. 41,

nota, remarks that S. candezei, Kirsch, 8. lafertei, Cand., and 8S. affinis, Guér.,

may be regarded as local forms of S. intermedius, Herbst. I have examined 107

specimens of S. lafertet from within our limits, four only of which are males. The

females have two very large, oval, piliferous foveee on the fifth ventral segment,

extending from about the basal fourth to near the apex, the apex itself being feebly

emarginate. A specimen from Tuxtla is figured.

5. Semiotus dohrni. (Tab. XIII. figg. 1,9; 2, 2, var.)

Semiotus dohrni, Cand. Ann. Soc. Ent. Belg. 1889, p. 80 (Elat. Nouv. iv. p. 14)°.

Hab. Nicaracua, Chontales (Belt); Panama! (coll. Janson), Chiriqui (Trétsch).

Var. The head with a patch on the vertex, the prothorax with a broad median vitta extending from the base

almost to the apex and a small spot on the sides before the middle (extending to the pleure beneath), the

scutellum and the cavity surrounding it, and the elytra with the suture from the base to the apex, two

vittee on the disc (extending along the fourth and sixth interspaces from near the base to near the apex,

and narrowing behind), and a marginal stripe (extending from opposite the hind coxee to the apex), black ;

a broad stripe down either side of the pro-, meso-, and metasternum, and first four ventral segments,

also black.

Hab. GuateMAta, Cerro Zunil (Champion).

Two specimens from the State of Panama have been examined by Dr. Candéze. The

three examples from Guatemala differ from them in having the black markings much

more extended, both above and beneath, and they also have a black marginal spot on

the thorax. The single specimen from Chontales resembles those from Panama. All

of them are of the female sex. They have the fifth ventral segment unimpressed, with

the apex subtruncate. We figure two specimens—one from Chiriqui, and one of the

variety from Guatemala,

SEMIOTUS. 291

6. Semiotus superbus. (Tab. XIII. fige. 4, 5,2; 5a, fifth ventral segment, 2 .)

Semiotus superbus, Kirsch, Berl. ent. Zeitschr. 1866, p. 181*; Cand. Révis. Elat. p. 179°.

Hab. Costa Rica (coll. Janson, Van Patten), Rio Sucio, Volcan de Irazu (Rogers) ;

Panama, Volcan de Chiriqui 3000 feet (Champion).—Cotompia, Bogota’?; Ecvapor?.

Not uncommon in Costa Rica and the State of Panama. Varies greatly in size, and

also in colour, the two black vittz on the thorax being frequently confluent, or narrow, so

that the rufous intervening space is much broader than the vitte. The females have

two large, oval, piliferous foveee on the fifth ventral segment beyond the middle; the

apex of this segment is subtruncate in both sexes. Amongst the thirty-one Central-

American specimens examined, nine are males. We figure two female specimens—

one (fig. 4), a dark variety from the Volcan de Irazu; the other (fig. 5), the form

described by Kirsch, from Rio Sucio.

7. Semiotus chontalenus. (Tab. XIII. figg. 3; 34, fifth ventral segment, 2 .)

Semiotus chontalenus, Cand. Révis. Elat. p. 177°.

Hab. Nicaracva (Sallé), Chontales (Belt, E. M. Janson+) ; Costa Rica (coll. Janson) ;

Panama, Bugaba, Volcan de Chiriqui, Caldera (Champion).

Not uncommon in Chiriqui. Amongst the twenty-seven specimens examined, six are

males. The fifth ventral segment in the female has two very large, deep, oval, piliferous

fovee, extending from about the basal third to the apex, these becoming confluent

behind and merely separated anteriorly by a sharp carina; the apex of this segment is

rounded in both sexes. WS. chontalenus is very closely allied to S. caracasanus, Cand.,

from which it differs in having the punctures of the elytral strie almost obliterated,

and the apical three or four joints of the antenne yellow. In some examples the

suture is black to the base; and in one from the Volcan de Chiriqui the apical joint

only of the antenne is lighter in colour. A typical specimen from Chontales is

figured.

8. Semiotus ligneus. (Tab. XII. figg. 24; 24a, fifth ventral segment, 2 .)

Elater ligneus, Linn. Syst. Nat. 12th edit. i. 2, p. 652°; Oliv. Ent. ii. no. 31, p. 17, t. 2. fig. 15°.

Semiotus ligneus, Cand. Monogr. Elat. i. p. 8302 **°; Révis. Hlat. p. 185 *.

Elater conicus, Voet, Cat. Syst. Col. i. p. 88, t. 42. fig. 9°.

Elater xylinus, Perty, Del. anim. art. Bras. p. 22, t. 5. fig. 10°.

Hab. Mexico, Cosamaloapan in Vera Cruz (Sallé); Nicaragua, Chontales (Belt,

E. M. Janson); Panama, Bugaba (Champion), Chiriqui (Zrétsch).—Sovuta America? ;

CotomBia; Ecuapor; Gurana, Surinam! 2, Cayenne?; Amazons+; Brazin?4°; Perv;

ANTILLES, Grenada.

# Candéze also quotes Drury, Llustr. exot. Ins, iii. t. 47. fig. 4 (Hlater serraticornis); but Drury’s figure is

obviously intended for S. distinctus, Herbst.

2P2

292 SERRICORNIA.

A widely distributed insect in Tropical America. I have seen altogether twenty-nine

specimens of S. ligneus, the whole of which are females. In this sex the fifth ventral

segment has two very large, rounded, piliferous fovee beyond the middle, the apex of

the segment being almost rounded. Nine examples from Central America are before

me, five of these being from Chontales.

The published figures of this species are rather unsatisfactory ; we therefore give a

fresh one, taken from a Chontales specimen.

. OISTUS.

Oistus, Candéze, Monogr. Elat. i. p. 838 (1857).

This genus, the American exponent of the eastern Campsosternus, contains two

species only, both peculiar to Central America, one of them extending as far south

as Nicaragua.

In this genus, again, the males are much rarer than the females; they may be

distinguished by the form of the fifth ventral segment. |

Eyes very large; prothorax with a smooth bare spot on either side of the disc a

little before the middle; elytra with smooth bare spots, the vestiture forming

distinct fascicles 2. 2 1. 1 ww ke ke ee ee ee ew CaCICUS.

Eyes small; prothorax without smooth bare spots on the disc; elytral vestiture

not forming distinct fascicles, the bare spots not distinctly defined . . . . sphenosomus.

1. Oistus cacicus. (Tab. XIII. fige. 8; 8a, fifth ventral segment, 3.)

Oistus cacicus, Cand. Monogr. Elat. i. p. 339, t. 6. figg. 5, 5a—-c*; Révis. Elat. p. 189’.

Hab. Mexico, Orizaba1?, Tuxtla, Santecomapan (Sailé), Jalapa, Las Vigas (Hoge) ;

GUATEMALA, Coban (Conradt) ; Nicaracua, Chontales (Belt).

Nine specimens of this species are before me, one of which isa male. It has the

apex of the fifth ventral segment produced in the middle into a long process,

which is rounded at the tip and curved upwards. On the elytra there are numerous

bare smooth spots, the interspaces between which are here and there densely, very

minutely punctate, and clothed with hair-like scales, these forming fascicles on the

densely punctured places. We figure a male from Coban.

2. Oistus sphenosomus. (Tab. XIII. figg.7; 7a, fifth ventral segment, ¢ .)

Oistus sphenosomus, Cand. Monogr. Elat. i. p. 839’; Révis. Elat. p. 189°.

Hab. Muxico, Orizaba!? (Sallé), Jalapa (Sallé, Hoge), Las Vigas (Hoge).

Not uncommon in the State of Vera Cruz. Much smaller than the preceding, the

eyes smaller, the thorax without a smooth bare spot on either side of the disc, the

hair-like scales on the elytra not forming distinct fascicles. The type described by

OISTUS.—DICREPIDIUS, 293

Candéze is abraded and discoloured. Fresh specimens have the upper and under

surfaces somewhat thickly clothed with yellowish-cinereous hair-like scales ; the elytra

have a few scattered bare spaces. In the male the fifth ventral segment is slightly

elongated, sinuated at the sides beyond the middle, and rounded at the tip.

Group DICREPIDIINI.

DICREPIDIUS.

Dicrepidius, Eschscholtz, in Thon’s Archiv, ii. 1, p. 31 (1829) ; Candéze, Monogr. Elat. ii.

p. 1438.

An American genus containing seven described species, three of which are from the

island of Guadeloupe ; on the mainland it ranges from the United States of North

America to Uruguay, one of its members being very widely distributed. Two addi-

tional species are here described, one of them differing considerably from the others in

its structural characters.

Posterior coxal plates broadly triangularly widened over the point of insertion of

the femora; antennz flabellate in the male.

Antenne very elongate in the male, much shorter in the female ; the rami (¢)

subequal in length, stout.

Apices of the elytra subtruncate ; colour ferruginous

Apices of the elytra conjointly rounded ; colour black or pitchy-brown . - . corvinus.

Antenne very elongate in both sexes; the rami (¢) increasing in length,

slender, the outer ones exceedingly elongate . . . :

Posterior coxal plates feebly subangularly widened over the point of insertion of

the femora ; antennz obliquely serrate in the male

ramicornis.

politus.

serraticornis.

1. Dicrepidius ramicornis.

Elater ramicornis, Beauv. Ins. Afr. et Am. p. 10, t. 7. figg. 8, 3a (¢) (excl. t. 9. fig. 7 *) (1805) *.

Dicrepidius ramicornis, Lec. Trans. Am. Phil. Soc. x. p.461°; Jacq. Duv. in Ramon de la Sagra’s

Hist. fis. polit. y nat. de Cuba, Ins. p. 31, t. 7. fig. 12 (tarsus)*; Cand. Monogr. Elat. ii.

p. 144, t. 2. figg. 8,8a,b(9)*; Fleut. et Sallé, Ann. Soc. Ent. Fr. 1889, p. 409°.

Dicrepidius pectinicornis, Eschsch. in Thon’s Archiv, ii. 1, p. 31°.

Elater ceramboides, Sturm, Cat. p. 135 (1826) *.

Hab. North America, South Carolina!, Southern States?4, Texas 4—Mexico ‘;

Nicaraeua, Chontales (#. If. Janson). Sours Amemrica?4 to Brazil4®7; AntTILuxs 4,

Cuba 2°, Guadeloupe °.

I have only seen a single example of D. ramicornis from within our limits, a female

from'Chontales. Like Hemirhipus fascicularis, this species is very widely distributed

* This figure is probably intended for the North-American D. palmatus, Cand.

294 SERRICORNIA.

on the American continent; it appears to be a common insect in Cuba and Tropical

South America.

2. Dicrepidius corvinus. (Tab. XIII: fig. 9, 3 )

Dicrepidius corvinus, Cand. Monogr. Elat. ii. p. 145°.

Hab. Mexico (Sallé1), Tres Marias Is. (Forrer), Ventanas in Durango, Acapulco,

Jalapa (Hége), Tuxtla, Vera Cruz (Sal/é), Temax in North Yucatan (Gaumer); BritisH

Honpuras, Cayo (Blancaneaux); GuaTemaua (Sallé'), Panzos (Champion, Conradt),

Teleman, El Reposo, Las Mercedes, Mirandilla (Champion) ; Nicaragua (Sallé), Chon-

tales (£. M. Janson).

We have received about forty specimens of this species. It is included in Henshaw’s

‘List of the Coleoptera of America north of Mexico,’ but I have not seen an example

of it from beyond our northern frontier. A male from Ventanas is figured.

3. Dicrepidius politus. (Tab. XIII. fig. 10, 3.)

Elongate, narrow, cuneiform, black, very shining, sparsely clothed above and beneath with long yellowish-

cinereous hairs; the legs, palpi, and antennx testaceous or rufo-testaceous. Head moderately convex,

thickly and rather coarsely punctate, shallowly depressed in front; antenns very elongate, extending to

beyond the middle of the elytra in both sexes—( ¢) strongly flabellate, the rami narrow, increasing in

length, the outer ones exceedingly elongate—( 2 ) tapering outwardly, the apical joints narrow. Pro-

thorax longer than broad, convex, sinuate at the sides behind the middle ; the hind angles slightly divergent,

stout, greatly produced, carinate above, limited internally by a very deep excision; the base trilobate in

the centre; the surface finely and sparsely punctured, the punctures becoming much coarser and closer at

the sides in front, very distinctly canaliculate in the middle behind. Scutellum with a few scattered

punctures. Elytra very elongate, narrowing from the base, a little flattened on the disc, subtruncate at

the apex ; with rows of rather scattered moderately coarse punctures placed in almost obsolete striz, the

punctures becoming very much finer towards the apex, the striae deeply impressed on the basal declivity ;

the interstices almost flat, very sparsely but distinctly punctured. Beneath somewhat thickly punctured,

the propleure, except at the sides, impunctate ; posterior coxal plates broadly triangularly widened near

the middle.

Length 133-20, breadth 33-43 millim. (¢ 9.)

Hab. Nicaraaua (Sallé), Chontales (Belt, H. M. Janson).

Var. The prothorax coarsely punctured ; the antennal rami slightly stouter. (¢.)

Hab. Panama, Bugaba (Champion).

Eleven specimens, seven of which belong to the typical form. There can be little

doubt that the Panama examples represent nothing more than a local form of the

same species, though the difference in the punctuation of the thorax is considerable.

D. politus may be easily known from D. ramicornis and D. corvinus by the different

. form of the antenne in both sexes, the rami being very much longer and narrower, and

increasing in length outwardly, in the male, and the antenna itself very elongate and

slender in the female; it also has the head and thorax much more sparsely punctured,

DICREPIDIUS.—SPILUS. 295

the elytra narrowing from the base in both sexes, with the strie indistinct (except on

the basal declivity) and the interstices almost flat, and the propleure punctured at the

sides only. The antennal rami in the male are even more elongate than in the North-

American D. palmatus, Cand. We figure a male from Chontales.

4. Dicrepidius serraticornis. (Tab. XIII. figg. 6, ¢ ; 6a, antenna.)

Elongate, narrow, rather depressed, fusco-ferruginous, moderately shining, rather sparsely clothed above

and beneath with long yellowish-cinereous hairs; the legs and antenne ferruginous. Head moderately

convex, closely, coarsely punctate, broadly depressed in front and also very feebly sulcate in the middle

between the eyes; antenne about reaching the basal fourth of the elytra, joints 3-10 strongly obliquely

serrate, the outer apical angle of these joints becoming progressively more and more obliquely produced.

Prothorax as long as broad, convex; the hind angles stout, greatly produced, divergent, and carinate

above, limited internally by a shallow impression; the surface thickly and rather coarsely punctured,

obsoletely canaliculate behind. Scutellum thickly punctured. Elytra moderately elongate, flattened on —

the disc, subparallel in their basal third and gradually narrowed thence to the apex, the apices conjointly

rounded ; punctate-striate, the striz shallow (except on the basal declivity), and with moderately coarse

rather widely separated punctures, which become very much finer beyond the middle; the interstices

almost flat and sparsely finely punctate. Beneath somewhat thickly punctured, the propleure with widely

scattered punctures, smooth at the base; posterior coxal plates feebly subangularly widened opposite the

point of insertion of the femora.

Length 14; breadth 3} millim. (<.)

Hab. Mexico, La Noria in Sinaloa (Hége).

One male specimen. This species differs from all the other members of the genus

known to me in having the posterior coxal plates only feebly subangularly widened

over the point of insertion of the hind femora, and also in the non-flabellate antenne

in the male. The head is formed exactly as in the typical species of Dicrepidius.

SPILUS.

Spilus, Candéze, Monogr. Elat. 11. p. 87 (1859).

The five described species of this genus are all from Tropical South America. One

from Central America is now added. The males have the antenne densely clothed

with short fine erect hairs on their inner edge, a character not noticed by Candéze.

1. Spilus ciliaticornis. (Tab. XIII. figg. 11, ¢; 11a, antenna.)

Elongate, rather narrow, convex, shining, varying in colour from pitchy-black to brownish-ferruginous ; the

antenns and legs testaceous or fusco-testaceous ; above and beneath somewhat thickly clothed with long

flavo-cinereous hairs. Head moderately convex, closely and coarsely punctate, the frontal carina flexed

downwards in the middle; antenne(<¢) about half the length of the body, rather slender, the joints very

finely and densely ciliate on their inner edge, 3 much shorter than 4, ( 2) shorter, and with the joints

very sparsely ciliate on their inner edge. Prothorax convex, about as long as broad, subconical ; the

hind angles divergent, strongly produced, sharply carinate above, limited internally by a deep impression ;

the surface rather sparsely, finely punctate, the punctures becoming coarser towards the apex, canaliculate

behind, deeply so in some specimens, and with rather deep transverse basal grooves. Scutellum sparsely

punctate. Elytra nearly three and a half times the length of the prothorax, narrowing from a little below

the base, the sutural angles submucronate; finely and shallowly punctate-striate, the interstices flat on

296 SERRICORNIA.

the disc, feebly convex at the sides, sparsely punctured. Beneath thickly punctured ; prosternal sutures

excavate in front.

Length 113-13, breadth 33-33 millim. (¢ 2.)

Hab. Nicaraaua, Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui (Champion).

Nine examples, three of which are males, one only being from Nicaragua. Like

Atractosomus corax, this insect varies a good deal in colour, the males being almost

black. WS. ciliaticornis is not very closely allied to any of the species described by

Candéze, from all of which it may be known by the subconical thorax. We figure a

male from Chontales.

SPILOMORPHUS.

Head with a prominent frontal carina ; apical joint of the maxillary palpi rounded-triangular ; eyes finely, but

distinctly facetted ; antenne with the joints from the third broad and triangular ; scutellum oval ; pro-

sternal sutures parallel behind, not excavate in front ; prosternum concave and abruptly declivous behind

the cox, the process slightly flattened and subhorizontal, with an angular projection before the tip;

mesosternum with the sides of the cavity vertical, and with a rounded elevation at the base immediately

in front of the metasternal process, which is produced anteriorly; legs short; posterior coxal plates

rapidly and obliquely narrowing outwards; tarsi with joints 2 and 3 lamellate beneath ; claws simple.

The single species referred to this genus has the meso- and metasternum formed

exactly as in Spilus; but it differs from it in having the coxal plates undilated opposite

the point of insertion of the femora, the legs short, the prosternal sutures parallel

behind, the prosternum abruptly declivous behind the coxe, and the antenne with the

joints from the third broadly triangular.

1. Spilomorphus rubricollis. (Tab. XIII. figg. 12, 2 ; 12a, antenna.)

Moderately elongate, rather broad, somewhat convex, shining; black, the prothorax ferrugineo-testaceous, the

oral organs and frontal carina obscure ferruginous ; the legs piceous, with the knees and the tips of the

tarsi rufo-testaceous ; the under surface, the prothorax excepted, in great part black, the metasternal

process ferruginous ; above sparsely clothed with rather long hairs, which partake of the ground-colour,

beneath sparsely clothed with long yellowish-cinereous hairs, Head moderately convex, broadly flattened

in front, closely, rather coarsely punctate, the frontal carina prominent ; antenne short, scarcely reaching

beyond the humeri, joint 3 a little narrower than, and almost as long as, 4, 4—7 about as broad as long,

8-10 slightly longer than broad, 11 longer than 10. Prothorax transverse, moderately convex, the sides

slightly rounded and gradually converging from a little before the base; the hind angles moderately pro-

duced, subparallel, rather blunt at the tip, not carinate above, limited internally by a short deep groove;

the surface finely and rather closely punctate, canaliculate behind, and with shallow transverse basal

grooves. Scutellum thickly punctured. Elytra three times the length of, and a little narrower than,

the prothorax, parallel to the middle and gradually narrowing beyond, the apices broadly, conjointly

rounded; finely punctate-striate; the interstices almost flat, thickly punctured. Beneath finely and

somewhat thickly punctured, the propleure more sparsely and more coarsely punctate.

Length 103, breadth (of elytra) 3 millim. ( 9.)

Hab. Panama, Bugaba (Champion).

One specimen. This insect somewhat resembles Anoplischius corallinicollis and

A. hemipyrrhus, Cand., but differs from them in the form of the meso- and meta-

sternum.

HETEROCREPIDIUS.—ATRACTOSOMUS. 39

=~]

HETEROCREPIDIUS.

_ Heterocrepidius, Guérin, Mag. Zool. 1838, Ins. Voyage de la Favorite, p. 24; Candéze, Monogr.

Elat. ii. p. 31 (part.).

Heteropus, Germar, Zeitschr. fiir Ent. i. p. 207 (1839).

This genus, as restricted by Fleutiaux *, contains sixteen species—thirteen from

South America, one from Mexico, and two from S. Africa. The Mexican insect is

here referred to Anoplischius.

The new species from Costa Rica described below is an aberrant form, but it

possesses most of the structural characters of the genus.

1. Heterocrepidius megalops. (Tab. XIII. figg. 13, ¢; 13a, maxillary

palpus.)

Very elongate, subparallel, rather broad, moderately convex, shining, pitchy-brown, the epipleure and the

apex of the terminal joint of the antenne ferruginous; above and beneath thickly clothed with long

fulvo-cinereous hairs. Head flattened and slightly depressed in the middle between the eyes, somewhat

thickly, moderately finely punctate ; the eyes smooth, exceedingly large, projecting laterally beyond the

anterior angles of the prothorax ; the frontal carina flexed downwards, not prominent, truncate ante-

riorly ; the antenne slender, extending fully to the middle of the elytra, joints 3-11 gradually increasing

in length and decreasing in width, 3 and 4 subequal, 11 much longer than 10. Prothorax transverse,

trapezoidal, slightly compressed at the sides before the middle, convex in front, flattened behind; the

hind angles narrow, greatly produced, divergent, curved inwards at the tip, feebly carinate above ; the

surface sparsely, finely punctate. Scutellum very sparsely punctured. Elytra nearly five times as long

as the prothorax, parallel to about the middle, and gradually narrowing beyond, the apices conjointly

rounded ; finely and lightly punctate-striaté, the punctures somewhat widely separated, becoming coarser

towards the sides ; the interstices almost flat, sparsely, finely punctate, the punctures similar to those of

the inner striz. Beneath finely, rather closely punctate; prosternum slightly declivous in front, with an

abruptly raised chin-piece ; posterior coxal plates rapidly and obliquely narrowing outwards. Legs very

elongate ; anterior and intermediate tarsi with joints 1-3, and the hind tarsi with joints 1 and 2

lamellate beneath.

Length 16, breadth 44 millim. (<¢.)

Hab. Costa Rica, Volcan de Irazu 7000 feet (Rogers).

One specimen. ‘This insect resembles the Colombian Anmoplischius conicicollis and

A. longipennis, Cand., in its general shape. It differs from all the described species of

Heterocrepidius in its very elongate limbs, enormous eyes, very elongate elytra, and

strongly raised prosternal chin-piece. ‘The third joint of the antenne is as long as the

fourth. The apical joint of the maxillary palpi is oblong-ovate, a character separating

the species from Anoplischius.

ATRACTOSOMUS.

Atractodes, Germar, Zeitschr. fiir Ent. i. p. 219 (1839) (nomen preeocc.); Candéze, Cat. Méthod.

Elat. p. 63.

Atractosomus, Lacordaire, Gen. Col. iv. p. 173 (1857) ; Candéze, Monogr. Elat. ii. p. 132.

The twenty-one described species of this genus are all from Tropical America, two

* Ann. Soc. Ent. Fr. 1892, p. 408.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, January 1895. 2Q

298 SERRICORNIA.

of them belonging to our fauna; four others from Central America are now added.

In A. fusiformis, A. cribricollis, and A. curticollis the sides of the mesosternum are

less raised than usual; A. rubidus, Cand., and A. columbicus, Fleut. , possess a similar

peculiarity.

Mesosternum with the sides strongly raised, horizontal; frontal carina pro-

minent; antenne with joints 3 and 4 equal in length; hind angles of the

prothorax rather feebly carinate ; elytra mucronate at the apex.

Elytra narrowing from about the middle; prosternal sutures deeply grooved

in front; size large (22-25 millim.). . . . 6 + 6 © © © + + + arcuatus.

Elytra narrowing almost from the base; prosternal sutures not or very feebly

grooved in front.

Prothorax convex, moderately transverse, rounded at the sides muon

size 12-15 millim. . . . . . 2. ee 2 oe - corax.

Prothorax feebly convex, strongly transverse, subtrapezoidal ; size 92 “i

millim.. 2 0.0. 0. ee ee ee ee eww ee ee mucronatus.

Mesosternum with the sides moderately raised, subhorizontal; frontal carina

flexed downwards in the middle; hind angles of the prothorax sharply

carinate.

Antenne with joint 8 shorter than 4; prothorax finely punctured; elytra

sharply mucronate at the apex. . 2. 1 1 ee we ee ee ee Susiformis.

Antenne with joints 3 and 4 equal; prothorax very coarsely punctured ; elytra

feebly mucronate at the apex eee ew we ew ew Cribricollis.

Mesosternum with the sides sharply, triangularly raised in front; frontal carina

prominent; antenne with joint 3 very little longer than 2; hind angles of

the prothorax obliquely carinate ; elytra rounded at the apex ~ e 6 «+ curticollis.

1. Atractosomus arcuatus.

Atractosomus arcuatus, Cand. Monogr. Elat. ii. p. 142, t. 3. figg. 3, 3a’.

Atracitodes arcuatus, Cand. Cat. Méthod. Elat. p. 64°.

Hab. Mexico 2 (coll. Janson, ex Mniszech), Cordova (Sallé); Nicaragua, Chontales

(Belt, E. M. Janson); Panama, Bugaba, Volcan de Chiriqui 3000 feet (Champion).

I have seen six specimens of this species, including two from Mexico, which are both

females. The two from Chiriqui are of the male sex, and they have the antenne more

elongate. In three of the southern specimens the elytra are coarsely punctate-striate

towards the suture.

2. Atractosomus corax.

Atractosomus coraz, Cand. Monogr. Elat. ii. p. 142°.

Atractodes corax, Cand. Cat. Méthod. Elat. p. 64”.

Hab. Mexico, Cordova in Vera Cruz, Tanetza (Sallé), Jalapa (Hoge).

Var. The elytra, and sometimes the head and prothorax also, brownish-ferruginous or rufo-piceous.

Atractodes gagatinus, Cand., in litt.

Hab. Mexico, Cordova (Sallé), Jalapa (Hége).

ATRACTOSOMUS. 299

I have seen four specimens of the black or typical form, and three of the variety,

the latter being all of the female sex. In one example of the light-coloured form the

thorax is black and the elytra brown. The variety closely resembles Anoplischius

atractodes, but may be distinguished from it by the horizontally raised sides of the

mesosternum.

3. Atractosomus mucronatus.

Elongate, subfusiform, convex, shining ; brown or reddish-brown, the prothorax almost entirely, or with a

broad space across the middle, infuscate, the antenne piceous or obscure ferruginous, the legs ferruginous

or brownish ; above and beneath rather sparsely clothed with moderately long yellowish-cinereous hairs.

Head convex, closely, rather coarsely punctate, slightly depressed in the middle between the eyes; the

frontal carina moderately prominent, rounded anteriorly ; the eyes finely granulated; antenne short,

rather slender, joints 3 and 4 equal in length. Prothorax feebly convex, much broader than long, trape-

zoidal, the sides a little rounded anteriorly ; the hind angles moderately produced, incurved at the tip,

feebly carinate above; the surface thickly, finely punctate, the punctures more scattered towards the -

base, canaliculate behind. Scutellum sparsely punctured. LElytra moderately long, narrowing almost

from the base in the male, more parallei in the female, the apices mucronate ; finely and lightly punctate-

striate, the interstices sparsely punctured and (except on the basal declivity) almost flat. Beneath thickly

punctured ; prosternal sutures not excavate in front ; mesosternum with the sides raised, horizontal, and

abruptly declivous in front ; posterior coxal plates obliquely narrowing outwards.

Length 93-11, breadth 21-3 millim. (¢ 2.) .

Hab. GuateMata, Cerro Zunil 4000 feet (Champion).

Five specimens. Closely allied to A. corax, but smaller, the thorax less convex,

more transverse, less rounded at the sides anteriorly, and with the hind angles more

feebly carinate, the sides of the mesosternum less raised. The insect, at first sight, is

extremely like Anoplischius variabilis.

4, Atractosomus fusiformis, (Tab. XIII. fig. 14, 3.)

Elongate, fusiform, convex, rufo-piceous, very shining, sparsely clothed above and beneath with long fulvo-

cinereous hair; the under surface, femora, and tibiz, and the basal three joints of the antenne, in great

part piceous. Head sparsely, coarsely, unequally punctate, strongly declivous in front; the frontal

carina on either side obliquely raised, and in the middle flexed downwards and not visible from above;

eyes large and smooth; antenne feebly serrate, extending to a little beyond the humeri in the female,

slightly longer in the male, joint 3 shorter than 4, twice the length of 2. Prothorax subconical, nearly

as long as broad, distinctly compressed at the sides before the middle, the sides slightly sinuate behind ;

the hind angles moderately produced, almost smooth, sharply carinate above, curved inwards at the tip ;

the surface sparsely, very finely punctate, the punctures becoming coarse towards the apex and minute at

the base, deeply canaliculate in the middle behind, and with transverse deep basal grooves. Scutellum

very sparsely punctured. LElytra three and a half times as long as the prothorax, rapidly narrowing from

a little below the base, the apices mucronate; finely and shallowly punctate-striate (the punctures coarser

in one specimen), the striee deeply impressed on the basal declivity ; the interstices flat, somewhat thickly,

finely punctate. Beneath finely, rather sparsely punctate ; prosternal sutures deeply grooved anteriorly ;

posterior coxal plates very feebly widened opposite the point of insertion of the femora; mesosternum

subhorizontal, the sides thickened and moderately raised, almost vertical in front.

Length 17-19, breadth 43-5 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Three specimens. ‘This very distinct species may be readily identified from its allies

2Q2

300 SERRICORNIA.

by the very sharply carinate hind angles of the thorax. It belongs to Candéze’s first

section of the genus, and should be placed near A. conicicollis, Cand.; in the form of

the head it resembles A. ferrugineus, Cand., and in its fusiform shape A. columbicus,

Fleut. In two of the specimens the punctures of the inner strie@ are not coarser than

those of the interstices. The mesosternum, as in A. rubidus, Cand., has the sides a

little less raised than in the typical species of Atractosomus.

5. Atractosomus cribricollis.

Moderately elongate, subfusiform, shining, obscure reddish-brown, the antennz and legs ferruginous ; above

and beneath somewhat thickly clothed with long fulvo-cinereous hairs. Head feebly convex, slightly

concave in front, very coarsely, densely punctate, the frontal carina prominent at the sides and flexed

downwards in the middle; eyes large; antenne extending to some little distance beyond the humeri,

feebly serrate, joints 3 and 4 equal in length. Prothorax broader than long, moderately convex, the

sides converging from the base and slightly rounded anteriorly; the hind angles considerably produced,

sharply carinate above; the surface coarsely, densely punctate, feebly longitudinally depressed in the

middle behind. Scutellum sparsely punctured. LElytra rather more than three times the length of the

prothorax, rapidly narrowing from a little below the base, the apices acute; deeply but rather finely

punctate-striate, the punctures closely placed ; the interstices almost flat towards the suture, becoming

rather convex at the sides, each with a very irregular double series of fine submuricate punctures,

Beneath thickly punctured ; prosternal sutures deeply grooved in front ; mesosternum subhorizontal, the

sides raised; posterior coxal plates feebly subangularly widened opposite the point of insertion of the

femora.

Length 15, breadth 43-44 millim.

Hab. Nicaracua, Chontales (Belt, E. M. Janson); Panama, Bugaba (Champion).

Five specimens, apparently males. Closely allied to the South-American A. robustus,

Cand., but narrower and less robust; the elytral strie more sharply defined and less

coarsely punctured; the hind angles of the thorax less divergent, the disc not deeply

canaliculate behind.

6. Atractosomus curticollis. (Tab. XIII. figg. 15, ¢; 15a, prosternal

process; 15 0, genitalia.)

Moderately elongate, rather depressed, shining, brownish-testaceous, thickly clothed with long, fulvo-cinereous

hairs, the legs and antennee testaceous. Head feebiy convex, densely, rugosely punctured, the frontal

carina prominent, the eyes large and rather narrowly separated; antenne slender, feebly serrate,

about half the length of the body, joint 3 small, a little longer than 2. Prothorax strongly transverse,

the sides feebly rounded and rapidly converging almost from the base ; the hind angles considerably pro-

duced, acute, parallel at the apex, obliquely carinate above ; the surface finely, rather closely punctate,

flattened and declivous behind, without trace of median channel. Scutellum almost smooth. Elytra

about four times the length of the prothorax, gradually narrowing from about the basal third, conjointly

rounded at the apex; finely and shallowly punctate-striate, the punctures becoming much coarser exter-

‘nally, the interstices flat on the disc, feebly convex at the sides, sparsely punctured. Beneath thickly

punctured ; prosternal sutures deeply excavate in front; mesosternum declivous, but with the sides

triangularly raised anteriorly and vertical in front.

Length 103, breadth 3 millim. (¢.)

Hab. GuatEMALA, Sinanja in Vera Paz (Champion).

One male specimen. This species is almost intermediate between Atractosomus and

ATRACTOSOMUS.—ANOPLISCHIOPSIS. 301

Anoplischius, the sides of the mesosternum being triangularly raised in front only, but

it seems best placed here. A. curticollis somewhat resembles Anoplischius foveifrons

and A. transversus, but has the thorax more narrowed anteriorly, and with the carina

of the hind angles shorter and more oblique, the third joint of the antenne small, the

eyes larger and more approximate, &c.; the prosternal process, viewed laterally, appears

to be strongly and sharply bifurcate.

ANOPLISCHIOPSIS.

Head convex, short, deeply sunk into the prothorax, with a moderately prominent frontal carina; eyes small,

finely but distinctly granulated; apical joint of the maxillary palpi narrow, oval, obliquely truncate at

the tip; antennz in both sexes rather short, not exceeding half the length of the body, joint 3 not, or

very little, wider than 2, shorter than 4, 4-10 triangular, 11 oval; prosternum declivous behind the

anterior coxee, the process moderately long, flattened, and subhorizontal, without tooth before the apex ;

prosternal sutures sinuous, excavate in front; mesosternum declivous and depressed, the sides of the

cavity not raised; posterior coxal plates moderately wide inwards, not or feebly subangularly dilated

above the point of insertion of the femora, rapidly and obliquely narrowing outwards ; legs moderately

elongate, slender ; tarsi with joints 2 and 3 lamellate beneath, 4 small; claws simple.

This genus includes Jschiodontus crocicollis, Cand., from Colombia (which has the

coxal plates subangularly widened opposite the point of insertion of the femora), and

the six species from Central America described below. It differs from Anoplischius in

having the prosternum declivous behind the anterior cox, with the process flattened,

subhorizontal, and not toothed before the apex. The antenne in both sexes are

strongly serrate from the fourth joint. The notch on either side of the basal margin

of the thorax is shallow or almost obsolete. The lobe on the underside of the second

and third tarsal joints is long and narrow.

The six Central-American species may be separated thus :—

Prothorax testaceous; elytra black, each with an oval flavo-testaceous spot on

the disc at the base. . 1. 1 1 ee ee ee ee ee ew ee) Dasimaculaius.

‘Prothorax variable in colour; elytra black, each with an attenuate vitta, not

nearly reaching the apex, testaceous . . - . . . ee ee ee - bvitiatus.

Prothorax testaceous, with a black median vitta; elytra black, each with a very .

broad oblique vitta, and the outer limb, to near the apex, flavo-testaceous . flavovittatus.

Prothorax testaceous, the head and elytra piceous . . . . . . . - . fuscipennis.

Prothorax and elytra testaceous, the former with a median vitta, and the latter

with the suture broadly to beyond the middle, infuscate. . . . . . . Sineatocollis.

Prothorax and elytra testaceous . . 6 6 ee ee ee ee ee ee bees.

1. Anoplischiopsis basimaculatus. (Tab. XIII. fig. 16, 2.)

Elongate, rather narrow, moderately convex, shining ; the head (the eyes excepted), prothorax, under surface,

_and legs (the anterior cox excepted) testaceous; the elytra black, each with an oval flavo-testaceous

“spot on the disc at the’ base, the epipleure fiaseous'’ ; the antennee black, with the two basal joints testa-

-geous; the upper and under surfaces sparsely clothed with rather long hairs, which partake of the

- ground-colour. Head convex, densely, rather coarsely punctate, the frontal carina flexed downwards and

302 SERRICORNTIA.

moderately prominent; antenne scarcely extending beyond the humeri, joint 3 a little wider than, and

about twice as long as, 2, 4-10 broadly triangular, 6-10 as broad as long. Prothorax as long as broad,

convex, the sides gradually converging from the base, feebly rounded anteriorly ; the hind angles acute,

divergent, strongly produced, and finely carinate above; the surface very finely, rather sparsely punctate,

canaliculate behind. Scutellum sparsely punctured. Elytra three times the length of the prothorax,

somewhat rapidly narrowing from about the middle, the apices rather sharp ; finely punctate-striate ; the

interstices feebly convex at the sides, flat on the disc, somewhat thickly punctate. Beneath, including

the propleure, finely, rather sparsely punctate.

Length 7%, breadth 27 millim. (9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Larger than A. divittatus; the elytra more attenuate at the apex,

black, each with an oval flavo-testaceous spot at the base; the frontal carina more

prominent. A. crocicollis (Cand.) is a closely allied species.

2. Anoplischiopsis bivittatus. (Tab. XIII. figg. 17, ¢ ; 17a, antenna;

17 6, prosternal process.)

Elongate, narrow, rather convex, shining ; the head black, sometimes in great part testaceous ; the prothorax

varying in colour from black, with an elongate-triangular patch on either side at the base and a transverse

streak near the anterior angles testaceous, to entirely testaceous; the scutellum and elytra black or piceous,

each elytron with a broad flavo-testaceous vitta on the disc extending to abont one-third from the apex

and narrowing behind, the space between this and the suture sometimes fuscous ; above thickly clothed with

long hairs, which partake of the ground-colour; beneath piceous, the prothorax and the sides and apex of

the abdomen sometimes testaceous, somewhat thickly clothed with long, decumbent, yellowish-cinereous

hairs ; the antenne black or piceous, with the two or three basal joints testaceous ; the legs testaceous.

Head convex, densely punctured, the frontal carina flexed downwards and not very prominent; antenne

rather short, in the male extending only to a little beyond the base of the elytra, joint 3 narrow, longer

than 2, 4-10 broadly triangular, slightly longer than broad, subequal. Prothorax about as long as broad,

convex, the sides gradually converging from the base, slightly rounded in front; the hind angles strongly

produced, acute, slightly divergent, finely carinate above; the surface very finely, somewhat closely

punctate, the punctures becoming coarser towards the apex, and sometimes very obsoletely canaliculate

behind. Scutellum with a few scattered punctures. Elytra about three and one-third times the length

of the prothorax, narrowing from about the middle; finely punctate-striate ; the interstices feebly convex,

flat towards the suture, minutely, somewhat thickly punctate. Beneath, including the propleure, finely,

rather closely punctate ; prosternum grooved between the coxe.

Length 6-73, breadth 13-2 millim. (¢ 9.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Found in plenty by myself in Chiriqui. The colour of the head and thorax is

variable: more than half the specimens have the thorax testaceous, This species

resembles the Cuban Anoplischius lineipennis, Cand., in coloration, but differs from

that insect in the form of the prosternal process &c. A specimen has been examined

by Dr. Candéze and returned as unknown to him.

8. Anoplischiopsis filavovittatus. (Tab. XIII. fig. 18.)

Moderately elongate, narrow, shining ; the head black ; the prothorax testaceous, with a black median vitta,

which is broadly widened in front and angularly dilated a little behind the middle; the scutellum and

elytra black, each elytron with a broad oblique vitta on the disc extending to near the apex, and

ANOPLISCHIOPSIS. 303

the outer limb for the same distance, flayo-testaceous ; the antenne black, with the two basal joints

testaceous beneath; the legs testaceous; beneath, the prothorax excepted, in great part piceous; the,

upper surface somewhat thickly clothed with rather long hairs, which partake of the ground-colour, the

lower surface with decumbent yellowish-cinereous hairs. Head convex, densely punctured, the frontal

carina flexed downwards and not very prominent; antenne extending to a little beyond the humeri, joints

2 and 3 small, equal, 4-10 rather broadly triangular, slightly longer than broad. Prothorax as long as

broad, convex, the sides gradually converging from the middle forwards, slightly rounded in front ; the

hind angles acute, scarcely divergent, strongly produced, finely carinate above; the surface thickly, finely

punctate, the punctures becoming coarser towards the apex, deeply canaliculate behind. Scutellum with

a few scattered punctures. Elytra about three times the length of the prothorax, gradually narrowing

from the middle; deeply punctate-striate, the punctures closely placed ; the interstices slightly convex

throughout, somewhat thickly punctured. Beneath thickly punctate.

. Length 53-53, breadth 13 millim.

Hab. Panama, San Miguel in the Pearl Islands (Champion).

‘T'wo specimens, apparently male and female, one having the antenne slightly shorter

than the other. Allied to A. divittatus, but less elongate, the median vitta on the

thorax differently shaped, the elytral vitta broader, more oblique, not narrowed behind,

and extending to near the apex, the elytral margins also testaceous to near the apex.

It is smaller than any of the described species of the group Dicrepidiini.

4, Anoplischiopsis fuscipennis.

Moderately elongate, narrow, shining; the head black, the prothorax rufo-testaceous, the scutellum and elytra

pitchy-black ; the antennew black, with the two basal joints testaceous ; the legs testaceous ; beneath, the

prothorax excepted, piceous ; the entire upper surface somewhat thickly clothed with rather long fulvous

hairs, the lower surface with yellowish-cinereous hairs, Head convex, densely, rugosely punctured, the

frontal carina moderately prominent; antenn about half the length of the body, joint 3 small, slightly

longer than 2, 4-10 rather broadly triangular. Prothorax as long as broad, convex, the sides gradually

converging from the base, slightly rounded in front; the hind angles strongly produced, slightly diver-

gent, without distinct carina above; the surface thickly, finely punctate, the punctures becoming coarser

towards the apex. Scutellum with a few scattered punctures. Llytra three times the length of the

prothorax, gradually narrowing from the middle, the apices conjointly rounded ; finely punctate-striate ;

the interstices flat on the disc, feebly convex at the sides, somewhat thickly punctured. Beneath thickly

punctured. ,

Length 6, breadth 14 millim. (d.)

Hab. Nicaragua, Chontales (EZ. M. Janson).

One specimen. Allied to A. divittatus, but differing from that species in having the

elytra entirely piceous and clothed with fulvous hairs, and the hind angles of the thorax

without distinct carina.

5. Anoplischiopsis lineatocollis. (Tab. XIV. fig. 2, 2.)

Moderately elongate, rather convex, shining; testaceous, the eyes and the front of the head black, a broad

median vitta on the prothorax, narrowing behind, the scutellum, and a broad sutural stripe on the elytra,

extending to about one-fourth from the apex, pitchy-brown ; the antenne black, joints 1-3 testaceous at

the tip; the oral organs, and the under surface, the sides of the propleurz excepted, piceous, the legs

pitchy-brown ; above thickly clothed with moderately long hairs, which partake of the ground-colour,

beneath sparsely clothed with yellowish-cinereous hairs. Head convex, densely, rather coarsely punctured,

the frontal carina moderately prominent, flexed downwards in the middle; antenne extending very little

304 SERRICORNIA.

beyond the base of the prothorax, joint 3 narrow, slightly longer than 2, 4-10 rather broadly triangular.

. Prothorax a little broader than long, the sides gradually converging from the base, rounded anteriorly ;

* the hind angles moderately produced, scarcely divergent, blunt at the tip, carinate above; the surtace

finely, sparsely punctate, deeply canaliculate behind. Scutellum sparsely punctured. Elytra moderately

long, narrowing from about the middle; deeply punctate-striate, the punctures fine and closely placed ; —

the interstices convex throughout, thickly punctured. Beneath somewhat closely punctate.

Length 8, breadth 23 millim. ( 9.)

Hab. Panama, Bugaba (Champion).

One specimen, which has been examined by Dr. Candéze and returned as unknown

tohim. Allied to A. divittatus, but larger and stouter and very differently coloured,

the elytral interstices convex and thickly punctured, the thorax deeply canaliculate

behind and with the hind angles obtuse at the tip.

6. Anoplischiopsis luteus.

Moderately elongate, rather convex, shining; testaceous, the scutellum and a large patch at the middle of the

base of the prothorax infuscate in one specimen, the antenne black or brownish, with the basal two joints

testaceous, the legs testaceous, the under surface testaceous or ferruginous ; above and beneath somewhat

thickly clothed with fulvous hairs. Head convex, densely and rather coarsely punctured, the frontal

carina moderately prominent, slightly flexed downwards in the middle; antenne rather short, joint 3

slightly longer than 2, 4-10 somewhat broadly triangular. Prothorax a little broader than long, the

sides gradually converging almost from the base, rounded anteriorly; the hind angles moderately produced,

acute, not or feebly divergent, finely carinate above; the surface finely and sparsely, at the apex more

coarsely, punctured, obsoletely canaliculate behind. Scutellum sparsely punctured. Elytra moderately

long, narrowing from a little before the middle; finely punctate-striate, the interstices convex at the

sides, flat or very feebly convex on the disc, and sparsely punctate. Beneath thickly punctured.

Length 63-8, breadth 13-2 millim. (¢ 9.)

Hab. Nicaracua, Chontales (£. M. Janson); Panama, Volcan de Chiriqui (Champion).

Four specimens, one of which has been examined by Dr. Candéze and returned as

unknown to him. Allied to A. fuscipennis, but differing from that species in its pallid

head, elytra, and under surface, and also in having the hind angles of the thorax

distinctly carinate.

The dark mark on the prothorax in one specimen is perhaps due

to discoloration.

CYATHODERA.

Cyathodera, Blanchard, in D’Orbigny’s Voyage dans l’Amér. mérid. vi. 2, p. 130 (1843) ; Candéze,

Cat. Méthod. Elat. p. 57.

Anoplischius, sect. iv., Candéze, Monogr. Elat. ii. p. 76.

This genus contains two species of large size, both peculiar to Tropical America, one

of them ranging as far north as Nicaragua.

1. Cyathodera lanugicollis.

Anoplischius lanugicolis, Cand. Monogr. Elat. ii. p. 77, t. 1. figg. 6, 6 a-e'.

Cyathodera lanugicollis, Cand. Cat. Méthod. Elat. p. 57”.

Hab. Nicaragua, Chontales (£. UM. Janson); Panama, Volcan de Chiriqui 3000 feet

(Champion)—Gutana!*, Cayenne; Ecuapor, Chiguinda; Amazons, Para.

CYATHODERA.—ANOPLISCHIUS. 305

I have seen five (3) specimens of this species, two of which are from Central

America. The males have a smooth, glabrous, oblong space on the fifth ventral

segment near the apex. The elytra are mucronate at the sutural angle, a character

not mentioned by Candéze.

ANOPLISCHIUS.

Anoplischius, Candéze, Monogr. Elat. 1. p. 49 (1859).

Of the fifty-five described species of Anoplischius, all but one are from Central or

South America or the Antilles. It differs from Jschiodontus in having the coxal

plates obliquely narrowing outwards from the dilated inner part, and not triangularly

dilated towards the middle; many of the species, however, have the coxal plates feebly

subangularly dilated at or before the middle, and these forms are more or less inter-

mediate. In all the species of Anoplischius I have examined the prosternal process

has an angular tooth or prominence before the apex. ‘Twenty-three species are here

enumerated from within our limits, eighteen of which are described as new.

a. Antennz with the third joint small, very much shorter than the fourth. . Species 1-5.

6. Antenne with the third and fourth joints subequal.

a’. The antennal joints densely punctured throughout.

a", Prosternal sutures not or scarcely grooved in front; elytra greenish

or with a greenish lustre; antenne exceedingly elongate in the

male . . 1 1 ee we ee eee ew tw ee «Species 6, 7.

6". Prosternal sutures more or less grooved in front.

a’, Prothorax and elytra concolorous—ferruginous, piceous, or brown.

a‘, Prothorax rounded at the sides anteriorly ; the hind angles not

or scarcely divergent.

a’. Prothorax closely and coarsely punctured . . . . . . ~ Species 8.

b°. Prothorax finely and more sparsely punctured . . . . . Species 9, 10.

b‘. Prothorax narrowing from the base; the hind angles divergent.

c’. Elytra moderately elongate.

a’. Prothorax closely punctured . . . . . «© « « - + Species 11.

b°. Prothorax sparsely punctured . . . . «. «. - « « ~ Species 12, 13.

d’, Elytra very elongate. . . . . . e - ss + « « + Species 14,

6". Prothorax partly rufous or flavous.

c‘, Elytral pubescence uniform in colour . . . . . + . . ~ Species 15, 16.

d‘, Elytral pubescence paler along the suture and margins . . . Species 17, 18.

c'", Prothorax rufous or yellow . . . oa ~ 6 © © « « Species 19, 20.

b’. The antennal joints, or at least the basal ones (1 and 2 excepted), with

a smooth line or carina along the middle above and beneath.

c", Elytra narrower than the prothorax, the humeri excavate; hind

angles of the prothorax incurved, very sharply carinate; meso-

sternum raised at the sides; colour black or piceous . . . . « Species 21.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, January 1895. QR

806 . SERRICORNIA.

da". Elytra as wide as the prothorax; mesosternum not raised at the

sides; colour testaceous or brownish-testaceous.

d'". Hind angles of the prothorax not divergent; posterior coxal plates

obliquely narrowing outwards . . . . «1 + + + + + + Species 22,

", Hind angles of the prothorax divergent ; posterior coxal plates

subangularly widened inwards . . . . . «+ + + + + ~ Species 23.

1. Anoplischius piliger. (Tab. XIII. fig. 19, 2.)

Moderately elongate, broad, piceous or pitchy-brown, shining, thickly clothed above and beneath with long

fulvo-cinereous hairs, the legs pitchy-brown or fusco-testaceous. Head convex, short, densely, rugosely

punctured, shallowly longitudinally depressed or sulcate in the middle between the eyes, the frontal carina

moderately prominent, rounded anteriorly; antenne rather slender, feebly serrate, extending to about

the basal third of the elytra in the male, a little shorter in the female, joint 3 small, not much longer

than 2. Prothorax convex, transverse, the sides rapidly converging from about the basal third, subparallel

behind and slightly rounded in front; the hind angles considerably produced, parallel, finely carinate

above; the surface very densely, rather finely punctate, and obsoletely canaliculate behind. Scutellum

thickly punctured. Elytra three and one-half times the length of the prothorax, subparallel to about the

middle, and narrowing thence to the apex; finely and rather deeply punctate-striate ; the interstices

almost flat, thickly and somewhat roughly punctured. Beneath thickly, rather coarsely punctured ;

prosternal sutures deeply excavate in front ; mesosternum declivous, the sides not raised ; posterior coxal

plates very feebly subangularly widened near the point of insertion of the femora.

Length 11-12, breadth 34 millim. (¢ @.)

Hab. Guatemaa, Sabo and Sinanja in Vera Paz (Champion).

Three examples. Smaller and less elongate than A. atractodes ; the head and thorax

more densely punctured, the latter parallel at the base and more transverse; the

antenne with the third joint very little longer than the second. ‘The male, from Sabo,

is in a bad state of preservation.

2. Anoplischius glis.

&. Heterocrepidius glis, Cand. Monogr. Elat. 11. p. 38°.

9. Anoplischius catulus, Cand. loc. cit. p. 59°.

Hab. Mexico, San Andres Tuxtla in Vera Cruz (Saillé 2),

I have examined the types of these insects, both of which are contained in the Sallé

collection. The type of A. catulus has the punctures of the elytral strie finer than

usual towards the suture, our other specimens being intermediate. The apical joint of

the maxillary palpi is narrow and subtriangular. The antenne are more elongate in

the male than in the female ; the third joint is short, not longer than the second.

3. Anoplischius parvulus.

Moderately elongate, rather convex ; fuscous, the hind angles and the anterior margin of the prothorax, and the

head also, sometimes ferruginous, the antenne more or less fuscous, the legs testaceous, the under surface

ferruginous ; above and beneath thickly clothed with long fulvo-cinereous hairs. Head convex, opaque,

very densely punctured, the punctures umbilicate; the frontal carina moderately prominent, reflexed,

rounded anteriorly; the eyes distinctly granulated; antenne rather slender, half the length of the

body in the male, shorter in the female, joint 3 short, slightly longer than 2, 4 more than twice the length

ANOPLISCHIUS. 307.

of 3. Prothorax broader than long, convex, narrowing from about the basal third, the sides a little

rounded anteriorly and parallel behind in the female, slightly sinuate behind in the male; the hind

angles moderately produced, acute, slightly divergent in the male, obsoletely carinate above; the surface

densely finely punctate, the punctures more scattered upon the basal declivity. Scutellum sparsely punc-

tured. Elytra moderately long, subparallel to about the middle and narrowing thence to the apex ; deeply

punctate-striate, the interstices convex, flatter on the disc, sparsely punctured, transversely rugulose

towards the base. Beneath thickly punctured ; prosternal sutures deeply excavate in front; mesosternum

declivous ; posterior coxal plates obliquely narrowing outwards.

Length 62-74, breadth 13-2 millim. (¢ 9.)

_ Hab. Guaremara, Cubilguitz in Vera Paz (Champion).

Two males and one female. Closely allied to A. glis, Cand. (=catulus, Cand.), but

narrower, and also differing from it in the much more finely punctured head and thorax,

the punctures on the latter more scattered on the basal declivity (in A. glis the thorax

is coarsely and uniformly punctured all over). The male resembles a small Hetero-

crepidius (croceipes, Germ.), but it has the apical joint of the maxillary palpi more

triangular.

4. Anoplischius mus.

Anoplischius mus, Cand. Monogr. Elat. ii. p. 567.

‘“‘Fuscus, dense cinereo-pubescens ; fronte convexa, punctata; antennis obscure ferrugineis, articulo tertio

quarto breviore ; prothorace transverso, a basi angustato, subtiliter haud dense punctato; elytris medio

subdilatatis, apice attenuatis, punctato-substriatis; abdomine apice rufescente; pedibus testaceis.—

Long. 6, lat. 1? millim.”

Hab. Mexico (Klingelhiffer 1).

This small species is not represented in our collection. It has the thorax more

sparsely punctured than in A. parvulus.

5. Anoplischius teapensis.

Moderately elongate, shining; piceous, the suture and under surface paler, the legs fusco-testaceous ; above

and beneath thickly clothed with long yellowish-cinereous hairs, Head rather convex, densely rugosely

punctured, obsoletely canaliculate in the middle, the frontal carina moderately prominent, rounded

anteriorly ; antenne elongate, extending to about the basal third of the elytra, feebly serrate, joint 3

stouter than, and twice the length of, 2, 4 nearly twice as long as 3. Prothorax rather convex, broader

than long, the sides slightly rounded and converging from about the basal third, parallel behind; the

hind angles moderately produced, parallel, finely carinate above; the surface densely, rather coarsely

punctate, canaliculate behind. Scutellum thickly punctured. LElytra moderately long, parallel te about

the middle and narrowing thence to the apex; finely and rather deeply punctate-striate ; the interstices

feebly convex, somewhat closely punctured. Beneath thickly punctured; prosternal sutures deeply

excavate in front, approximate behind; mesosternum declivous, the sides not raised ; posterior coxal

plates feebly subangularly widened opposite the point of insertion of the femora,

Length 83, breadth 2} millim. (¢.)

Hab. Mexico, Teapa in Tabasco (Hége).

One male specimen. This species is allied to A. glis, Cand. (=catulus, Cand.), but

is is larger and more robust, and has the third joint of the antenne nearly as wide as,

though much shorter than, the fourth. A. mus, Cand., is an allied form.

2R2

308 SERRICORNIA.

6. Anoplischius chalcopterus. (Tab. XIII. fig. 23, 3.)

Elongate, narrow, moderately convex, very shining ; above pitchy-black, the hind angles of the prothorax

usually ferruginous, the elytra varying in colour from ferruginous with a translucent seneous lustre to

eeneous or green; the antenne ferruginous, the two basal joints piceous; the legs pitchy-brown ; the

under surface and epipleure ferruginous, the prothorax sometimes piceous; above and beneath somewhat

sparsely clothed with long greyish-brown hairs. Head rather sparsely punctured, deeply triangularly

excavate in the middle in front in the male, shallowly so in the female, and with an exceedingly prominent

frontal carina, which is rounded anteriorly, the eyes large and smooth; antenne extending to beyond the

middle of the elytra in the male, not half the length of the body in the female, rather slender, joints 3 and

4 subequal. Prothorax trapezoidal, broader than long, flattened on the disc, slightly compressed at the

sides before the middle; the hind angles narrow, greatly produced, and divergent, sharply carinate

above; the surface very finely, sparsely punctate. Scutellum with a few scattered punctures. LHlytra

fully four and one-quarter times the length of the prothorax, rapidly narrowing from about the middle

in the male, more parallel in the female ; finely striate-punctate, the punctures widely separated ; the

interstices flat, sparsely, very finely punctate. Beneath finely and very sparsely punctured ; prosternal

sutures rather widely separated throughout, not excavate in front ; mesosternum declivous ; posterior

coxal plates feebly subangularly widened opposite the point of insertion of the femora, and becoming

very narrow outwards. Legs very elongate; tarsi with joint 2 feebly, and 3 strongly, lamellate

beneath.

Length 93-15, breadth 24-33 millim. (3 2.)

Hab. Guatemata, Cerro Zunil 4000 to 5000 feet (Champion).

Twelve males and one female. This species differs from all others of the genus yet

described in its metallic-green or eneous elytra. In general shape it approaches

A. longipennis and A. conicicollis, Cand. The antenne are very elongate in the male.

The insect is unknown to Dr. Candéze.

7. Anoplischius semizneus.

Elongate, narrow, moderately convex, very shining; the head piceous, the prothorax piceo-ferruginous, the

elytra greenish-zneous, the antenne, the two basal joints excepted, epipleurew, and under surface ferrugi-

nous, the legs fusco-ferruginous ; above and beneath rather sparsely clothed with long fulvo-cinereous

hairs. Head closely, rather coarsely punctate, transversely depressed in front, the frontal carina promi-

nent, the eyes large and smooth; antennz as in A. chalcopterus. Prothorax nearly as long as broad,

convex, subconical, the sides sinuate before and behind the middle; the hind angles strongly produced,

moderately divergent, sharply carinate above; the surface closely, rather coarsely punctate. Scutellum

sparsely punctured. Elytra three and one-half times the length of the prothorax, narrowing from the

middle; moderately finely striate-punctate, the punctures somewhat closely placed ; the interstices flat,

sparsely, finely punctate. Beneath thickly, rather coarsely punctate; prosternal sutures not excavate

in front.

Length 93, breadth 2} millim. (<¢.)

flab. GuaTEMALA (Sallé).

One specimen. Closely allied to A. chalcopterus, and differing as follows :—The

head in the male transversely depressed in front, the frontal carina less prominent;

the thorax more convex, less widened posteriorly, the sides distinctly sinuate behind,

the hind angles less divergent, the surface more coarsely and more closely punctate ;

the elytra not so finely striate-punctate; the under surface more coarsely and not so

sparsely punctured.

ANOPLISCHIUS, | 309

8. Anoplischius melanotides.

Anoplischius melanotides, Cand. Monogr. Elat. ii. p- 60°.

Hab. Mexico, Yucatan (coll. Chevrolat ').

Two female specimens of this species are contained in the Janson collection.

9. Anoplischius atractodes.

Anoplischius atractodes, Cand. Monogr. Elat. ii. p. 61°.

Hab. Mextco!, Tuxtla, Cordova (Sallé), Jalapa (Hége) ; Nicaracua, Chontales (Belt).

The Nicaraguan specimens differ from those from Mexico in having the thorax more

finely punctured.

10. Anoplischius sobrinus.

Elongate, subfusiform, convex, shining, obscure reddish-brown, the antenne, legs, and epipleure ferruginous ;

above and beneath somewhat thickly clothed with yellowish-cinereous hairs. Head convex, coarsely,

closely punctate, the frontal carina slightly deflexed in the middle, the eyes large and smooth; antenne

short and slender, extending very little beyond the humeri in the female, slightly longer in the male,

joints 8 and 4 equal. Prothorax much broader than long, moderately convex, the sides slightly rounded

and converging from the base; the hind angles moderately produced, incurved at the tip, and sharply

carinate above; the usual impressions on the basal margin almost obsolete; the surface very finely,

sparsely punctate, rather deeply canaliculate behind. Scutellum with a few minutely scattered punctures.

Elytra moderately elongate, narrowing almost from the base; finely and lightly punctate-striate, the

interstices flat on the disc, feebly convex at the sides, sparsely punctured. Beneath thickly punctured ;

prosternal sutures deeply excavate in front; mesosternum declivous ; posterior coxal plates subangularly

widened opposite the point of insertion of the femora.

Length 11-113, breadth 3-3; millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

Three specimens. Allied to A. variabilis, but differing from it in having the thorax

slightly rounded at the sides in both sexes, the hind angles shorter, not divergent,

and sharply carinate above, and the usual impressions on the basal margin almost

obsolete ; the frontal carina is slightly deflexed in the middle.

11. Anoplischius mexicanus. (Tab. XIII. fig. 20, ¢.)

Moderately elongate, rather convex, shining, varying in colour from piceous with the elytra pitchy-brown to

entirely reddish-brown, the epipleure ferruginous, the antenne and legs ferruginous or obscure ferru-

ginous ; above and beneath somewhat thickly clothed with long yellowish-cinereous hairs. Head convex,

densely, rather coarsely punctate, the frontal carina moderately prominent ; eyes large, finely granulated ;

antenne short, rather slender, joints 3 and 4 equalin length. Prothorax convex, broader than long, trape-

zoidal, the sides rapidly converging in a straight line from the base to the apex ; the hind angles strongly

produced, divergent, feebly carinate above; the surface closely, somewhat coarsely punctate, obsoletely

canaliculate or with a smooth line in the middle behind. Scutellum thickly punctured. Elytra mode-

rately elongate, rather broad, parallel to the middle and gradually narrowed beyond; finely and lightly

punctate-striate, the punctures becoming a little coarser and closer towards the sides; the interstices flat

on the disc, feebly convex at the sides, finely and somewhat closely punctate. Beneath thickly punctured ;

prosternal sutures deeply excavate in front; mesosternum declivous, the sides not raised; posterior coxal

plates feebly subangularly widened near the point of insertion of the femora.

Length 12-133, breadth 33-4 millim. (¢.)

310 SERRICORNIA. -

Hab. Mexico (coll. Janson), Cordova (Sallé).

Two specimens. This insect is allied to A. variabilis, from which it differs in its

more parallel shape, more distinctly granulated eyes, and closely punctured thorax.

12. Anoplischius variabilis.

Elongate, subfusiform, convex, shining; varying in colour from piceous or pitchy-brown to brownish-ferru-

ginous, the antenne pitchy-brown, brown, or ferruginous, the legs fusco-testaceous ; above and beneath

somewhat thickly clothed with long fulvo-cinereous hairs. Head convex, coarsely, closely punctate, in

some specimens slightly sulcate in the middle between the eyes, the frontal carina moderately prominent,

rounded anteriorly ; the eyes large and smooth ; antenne slender, not half the length of the body in the

male, shorter in the female, joints 3 and 4 equal. Prothorax moderately convex, broader than long,

trapezoidal ; the hind angles strongly produced, acute, divergent, finely carinate above; the surface

sparsely, finely punctate, more or less distinctly canaliculate behind. Scutellum sparsely punctured.

Elytra moderately elongate, narrowing from about the basal third ; finely punctate-striate, the interstices

flat on the disc, feebly convex at the sides, sparsely, minutely punctate. Beneath thickly punctured ; .

prosternal sutures deeply excavate in front; mesosternum declivous ; posterior coxal plates feebly sub-

angularly widened near the point of insertion of the femora.

Length 10-123, breadth 22-34 millim. (¢ 2.)

Hab. British Honpuras (coll. Janson); GuaTeMata, Panima, San Juan, and Senahu

in Vera Paz (Champion) ; Panama, Volcan de Chiriqui (Champion).

Numerous examples. This species is chiefly distinguished by its trapezoidal, sparsely

punctured thorax, the hind angles of which are divergent, acute, and feebly carinate,

the large and almost smooth eyes, and subfusiform shape. The colour of the body, and

of the antenne also, is variable. From A. mexicanus it may be known by its more

attenuate elytra and sparsely punctured thorax ; and from A. atractodes by having the

thorax narrowed from the base, with the hind angles strongly divergent. In some

specimens the frontal carina is a little less prominent than usual. ‘The insect is

deceptively like Spilus ciliaticornis and Ischiodontus ichthydius, both of which inhabit

several of the same localities. The species is unknown to Dr. Candéze.

13. Anoplischius furvus.

Moderately elongate, subfusiform, convex, shining, pitchy-brown, the epipleuree and legs more or less ferru-

ginous, the suture brownish, the antenne piceous or pitchy-brown; above and beneath somewhat thickly

clothed with long cinereous hairs. Head convex, densely, rather coarsely punctate, feebly transversely

depressed in front, the frontal carina moderately prominent, somewhat truncate anteriorly ; eyes rather

small, distinctly granulated ; antenne short, very little longer in the male than in the female, joints 3

and 4 equal in length. Prothorax convex, trapezoidal, a little rounded at the sides in front in the

female ; the hind angles strongly produced, divergent, carinate above; the surface closely, moderately

finely punctate. Scutellum with a few scattered punctures. Elytra moderately long, gradually narrowing

from the base; somewhat coarsely punctate-striate, the interstices convex and sparsely punctured.

Beneath thickly punctured; prosternal sutures deeply excavate in front; mesosternum declivous ;

posterior coxal plates feebly subangularly widened opposite the point of insertion of the femora.

Length 93-10, breadth 23-23 millim. (¢ 92.)

Hab. Guatemaua, Senahu in Vera Paz (Champion).

ANOPLISCHIUS. 811

. Three specimens. This species is very like A. variabdilis ; but it may be known from

that insect by the smaller and distinctly granulated eyes, the shorter antenne in both

sexes, the convex elytral interstices, the coarser and closer puncturing of the thorax,

and the transversely depressed front. The antenne are finely ciliate along their inner

edge in both sexes, but more distinctly in the male.

14. Anoplischius lucidus. (Tab. XIV. fig. 5,2.)

Elongate, rather broad, moderately convex, very shining; the head and prothorax pitchy-black, the elytra

obscure castaneous, the legs and under surface in great part piceous, the antennze reddish-brown ; above

and beneath sparsely clothed with long fulvo-cinereous hairs. Head feebly convex, densely, rather

coarsely punctured, the frontal carina very prominent, truncate anteriorly, the eyes large and smooth ;

antennse slender, about twice the length of the prothorax, feebly serrate, joints 3 and 4 subequal in

length. Prothorax transverse, trapezoidal, feebly convex ; the hind angles considerably produced, narrow,

feebly carinate above, thickly punctured; the surface finely, rather sparsely punctate, obsoletely canali-

culate behind. Scutellum thickly punctured. Elytra four and one-half times as long as the prothorax,

parallel to near the middle and narrowing thence to the apex, the apices conjointly rounded; finely and

lightly punctate-striate, the punctures somewhat widely separated; the interstices almost flat om the basal

portion of the disc, becoming slightly convex towards the sides and apex, sparsely, finely punctate, the

punctures similar to those of the striez. Beneath finely, rather sparsely punctate; prosternal sutures

feebly excavate in front; mesosternum declivous, the sides not raised. Anterior and intermediate tarsi

with joints 1-3, and the hind tarsi with joints 2 and 3, lamellate beneath.

Length 154, breadth 43 millim. (92.)

Hab. Guatemata, Sinanja in Vera Paz (Champion).

One specimen. Allied to A. longipennis, Cand., but differing from that insect in its

shorter antenne, less elongate elytra, more prominent frontal carina, &. Larger and

much more elongate than A. variabilis, the prosternal sutures not deeply excavate in

front.

15. Anoplischius maculicollis, (Tab. XIV. fig. 3, ¢.)

Moderately elongate, narrow (<¢), rather broad (@Q), the head, prothorax, and under surface shining, the

elytra subopaque; black; the prothorax orange-yellow, with the apical margin, the hind angles, a

triangular patch at the centre of the basal margin, and a large patch on the middle of the disc, extending

to the base and apex, black; above and beneath thickly clothed with long hairs, which partake of the

ground-colour ; the legs and antenne black, thickly pilose. Head densely, rugosely punctured, broadly

concave in front, the frontal carina very prominent, rounded anteriorly ; antenne extending to the middle

of the elytra in the male, much shorter in the female, the joints from the third dilated and serrate,

gradually decreasing in width and increasing in length in the male, 3-10 subequal in length in the female.

Prothorax broader than long, trapezoidal, rounded at the sides in front in the female; the hind angles

divergent, strongly produced, finely carinate above ; the surface rather finely, moderately closely punctate,

deeply canaliculate behind. Scutellum thickly punctured, Elytra ( ¢) nearly four, ( 2 ) three and one-half

times as long as the prothorax, in the male narrowing from the base, in the female subparallel and wider

at the middle than at the base ; finely, rather deeply punctate-striate, the sutural stria deeply impressed ;

the interstices flat on the disc, feebly convex at the apex, minutely shagreened and shallowly punctured.

Beneath thickly punctured; prosternal sutures feebly excavate in front, equidistant; mesosternum

declivous, the sides not raised.

Length, ¢ 8, 9 10 millim.; breadth, ¢ 2, 9 23 millim.

Hab. Mexico, Omilteme 8000 feet, and Chilpancingo 4600 feet, both in Guerrero

(H. H. Smith). | | |

312 SERRICORNIA.

Two specimens. Amongst the various Central-American species allied to A.

pyronotus, Cand., this perhaps approaches it the nearest, the antenne being similarly

formed in the male sex; the male, however, is narrower and more elongate than the

corresponding sex of that insect, and has the thorax maculated with black. The sexes

of A. maculicollis are very dissimilar in appearance. _

16. Anoplischius divisus. (Tab. XIII. fig. 21, 2.)

Moderately elongate, rather narrow, convex, subparallel, the head, prothorax, and under surface shining, the

elytra subopaque; the head, antenna, elytra, and legs (the knees excepted) black; the prothorax flavo-

testaceous, with a very broad black median vitta, which is constricted behind; the under surface, the pro-

pleurse excepted, black, the first ventral segment and the epipleure partly ferruginous ; the upper surface

thickly clothed with long, coarse, fulvo-cinereous hairs, the under surface more sparsely pilose. Head

closely, rather coarsely punctate, broadly concave in front, and sulcate in the middle, the frontal carina

prominent; antenns extending to a little beyond the humeri, the joints from the third rather broadly

widened, slightly longer than broad, 3 and 4 equal. Prothorax broader than long, convex, the sides

subparallel behind, rounded and slightly converging in front; the hind angles strongly produced, slightly

divergent, sharply carinate above; the surface thickly, rather finely punctate, deeply canaliculate behind.

Scutellum thickly punctured. Elytra moderately long, parallel to the middle, and gradually narrowing

beyond ; rather deeply punctate-striate ; the interstices feebly convex, minutely shagreened and some-

what roughly punctured. Beneath rather closely punctured ; prosternal sutures deeply excavate in front ;

mesosternum declivous, the sides feebly raised ; posterior coxal plates feebly subangularly dilated opposite

the point of insertion of the femora.

Length 73, breadth 24 millim. (92.)

Hab. GuaTEMALA, Zapote (Champion).

One specimen. Allied to A. maculicollis, but more convex, the hairs on the upper

surface coarser and fulvo-cinereous in colour, the elytra more deeply punctate-striate

and with the interstices slightly convex, the posterior coxal plates slightly widened

opposite the point of insertion of the femora.

17. Anoplischius elegans. (Tab. XIII. fig. 25, 2.)

Elongate, narrow, rather convex, shining; the head and antenne black; the prothorax rufous, with the

anterior margin, and a median vitta of variable width, widened in front and behind, black; the scutellum

and elytra piceous or pitchy-brown, the latter indeterminately black at the apex and with the sides

anteriorly or to near the apex, and sometimes the base also, fulvo-testaceous ; above densely clothed with

very long, coarse hairs, which on the front of the head, on a broad space on either side of the prothorax,

and along the suture and sides of the elytra to near the apex, are yellowish-cinereous and decumbent,

those on the rest of the upper surface being fuscous and semierect ; beneath piceous, thickly clothed with

very long, decumbent, cinereous or flavo-cinereous hairs; the legs varying in colour from fuscous with

the femora testaceous at the base to almost entirely testaceous, thickly pilose. Head densely, rugosely

punctured, broadly concave in front, and feebly sulcate in the middle, the frontal carina very prominent,

rounded anteriorly ; antenne about reaching the middle of the elytra in the male, shorter in the female,

the joints from the third rather broadly dilated, 3 and 4 equal. Prothorax convex, almost as long as

broad, slightly narrowed in front ; the hind angles strongly produced, slightly divergent, blunt at the tip,

sharply carinate above ; the surface densely, minutely punctate, deeply canaliculate behind. Scutellum

thickly punctured, Elytra moderately elongate, gradually narrowing from the base in both sexes, con-

jointly, bluntly rounded at the apex; coarsely punctate-striate ; the interstices narrow, feebly convex,

closely, minutely punctate. Beneath rather sparsely punctured ; prosternal sutures excavate in front,

ANOPLISCHIUS. 3138

equidistant; mesosternum declivous, the sides not raised; posterior coxal plates feebly subangularly

widened near the point of insertion of the femora.

Length 64-93, breadth 13-24 millim. (¢ 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Numerous examples. This species, a specimen of which has been examined. by

Dr. Candéze, and returned as unknown to hin, is allied to A. maculicollis, &c. The

yellowish-cinereous hairs form a broad stripe on either side of the thorax, and a narrow

stripe along the suture and lateral margins of the elytra to near the apex.

18. Anoplischius lineatus. (Tab. XIII. fig. 24, ¢, var.)

Elongate, narrow, rather convex, shining; the head and antenna black; the prothorax rufous, with the

anterior margin and a broad median vitta, obliquely narrowed behind and in one specimen not extending

to the base, black ; the scutellum and elytra piceous, the latter brownish towards the base, indeterminately

black at the apex, and with the sides anteriorly fulvo-testaceous ; above rather sparsely clothed with very

long, coarse, semierect hairs, which on the head, the sides and base of the prothorax, and along the suture

and sides of the elytra to near the apex, are cinereous or yellowish-cinereous, those on the rest of the

upper surface being obscure fuscous; beneath piceous, sparsely clothed with long, decumbent, cinereous

hairs ; the legs pitchy-brown, the knees, the apices of the tarsi, and sometimes the base of the femora,

testaceous, thickly pilose. Head coarsely, closely punctate, broadly concave in front, and feebly sulcate

in the middle, the frontal carina very prominent; antenne as in A. elegans. Prothorax convex, almost

as long as broad, slightly narrowed in front; the hind angles strongly produced, subparallel, blunt at the

tip, sharply carinate above; the surface moderately coarsely, somewhat closely punctate, very deeply

canaliculate behind. Scutellum sparsely punctured. LElytra moderately long, gradually narrowing from

the base, conjointly, bluntly rounded at the apex ; coarsely punctate-striate ; the interstices narrow, feebly

convex, rather sparsely punctate. Posterior coxal plates feebly subangularly widened near the point of

insertion of the femora.

Var, The prothorax rufous, with a very large triangular black patch extending from, the apex to. beyond the.

middle, the black also extending a little downwards along the lateral margin.

Length 7-93, breadth 12-27 millim. (¢ 2.)

Hab. Nicaragua, Chontales (£. MM. Janson) ; Panama, Bugaba (Champion).

Three specimens—two of the typical form from Bugaba and one of the variety from

Chontales. Closely allied to A. elegans, but differing from it in the more coarsely

and much less densely punctured thorax, and the more sparsely pilose upper surface,

especially of the thorax, the pale hairs at the sides not forming a broad matted band

as in that species.

19. Anoplischius flavicollis. (Tab. XIV. fig. 4, ¢.)

Elongate, rather narrow, somewhat depressed, the head, prothotax, and under surface shining, the elytra

. subopaque; the head, scutellum, and under surface black, the prothorax orange-yellow, the elytra bluish-

black ; above and beneath thickly clothed with long hairs, which partake of the ground-colour; the legs

and antenne black, densely pilose. Head densely, moderately finely punctate, broadly concave in front,

the frontal carina very prominent, rounded anteriorly ; antenne in the male extending to the middle of

the elytra, shorter in the female, the joints from the third broadly dilated and serrate, gradually decreasing

in width, 3 and 4 equal. Prothorax strongly transverse, trapezoidal, the sides converging in almost a

straight line from the base; the hind angles divergent, strongly produced, not or very feebly carinate

above; the surface thickly, rather finely punctate, the punctures becoming still finer towards the base,

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1896. 2S

314 SERRICORNIA.

obsoletely canaliculate to near the apex. Scutellum thickly punctured. Elytra rather more than four

times the length of the prothorax, in both sexes parallel to the middle, and narrowing thence to the apex,

the apices conjointly rounded ; finely punctate-striate, the interstices flat, minutely shagreened, thickly,

very shallowly punctured. Beneath thickly punctured, the propleure almost smooth; prosternum

shallowly grooved between the coxe ; prosternal sutures widely separated throughout, feebly grooved in

front; mesosternum declivous, the sides a little raised.

Length 104-11, breadth 23-3 millim. (¢ 92.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Two specimens, Allied to the Cuban A. pyronotus, Cand., but longer and more

parallel, the head more deeply excavate in front, the prosternal sutures widely separated

throughout, &c. It differs from A. sanguinicollis in having the thorax more transverse,

the elytra more elongate and more parallel, and the posterior coxal plates obliquely

narrowing outwards.

20. Anoplischius sanguinicollis. (Tab. XIII. fig. 22, ¢.)

Moderately elongate, narrow, shining, black, the prothorax rufous or rufo-testaceous, above and beneath

thickly clothed with long hairs, which partake of the ground-colour; the legs piceous, with the knees

testaceous. Head densely, rugosely punctured, broadly concave in front, the frontal carina very pro-

minent; antenne extending nearly to the basal third of the elytra in the male, slightly shorter in the

female, the joints from the third rather broadly dilated, gradually decreasing in width, 3 and 4 equal.

Prothorax a little broader than long, trapezoidal; the hind angles divergent, greatly produced, finely

carinate above; the surface finely, rather closely punctate, canaliculate behind. Scutellum sparsely

punctured. Elytra moderately long, narrowing from a little below the base in the male, more parallel in

the female, the apices conjointly rounded; tinely, rather deeply punctate-striate ; the interstices almost

flat, thickly punctured. Beneath thickly punctured ; prosternal sutures deeply excavate in front, narrowly

separated behind ; mesosternum declivous, the sides feebly raised ; posterior coxal plates feebly subangu-

larly widened near the point of insertion of the femora.

Length 63-73, breadth 14-2 millim. (¢ @.)

Hab. Guatemata, Senahu in Vera Paz (Champion).

Numerous examples. Closely allied to the Cuban A. pyronotus, Cand., but smaller,

narrower, and less robust, the thorax more sparsely and less coarsely punctured, the

antenne much shorter in the male, &c.

21. Anoplischius laticollis.

Dicrepidius laticollis, Eschsch. in Thon’s Archiv, 1. 1, p. 81°.

Dipropus laticollis, Germ. Zeitschr. fiir Ent. i. p. 216°.

Anoplischius laticollis, Cand. Monogr. Elat. i. p. 74, t. 1. fig. 10°; Steinh. Col. Hefte, xiv.

p. 115%. .

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).—CoLompta 4; Ecuapor ;

Guiana; Brazii!%,

This curious species is not uncommon in Chiriqui. It has the sides of the meso-

sternum thickened and raised, in this respect approaching Atractosonwus, in which it

would be equally well placed. The elytra are elongate, narrower than the thorax, and

ANOPLISCHIUS. 315

rapidly narrowed from the base; the shoulders are excavate for the reception of the

hind angles of the thorax, these latter being very sharply carinate. The eyes are large

and smooth.

22, Anoplischius foveifrons. (Tab. XIV. fig. 6, ¢ .)

Moderately elongate, rather depressed, shining, testaceous, above and beneath somewhat thickly clothed with

long fulvous hairs. Head rather convex, coarsely, closely punctate, transversely depressed in the middle

between the eyes, the frontal carina prominent, rounded anteriorly; antenns moderately stout, feebly

serrate, extending to about the basal fourth of the elytra in the male, shorter in the female, the third and

following joints with indications of a smooth median line, 3 and 4 equal in length. Prothorax strongly

transverse, the sides very feebly sinuate or subparallel behind and rounded anteriorly ; the hind angles

subparallel, considerably produced, sharply carinate above; the surface closely, rather coarsely punctate,

canaliculate behind. Scutellum almost smooth. Elytra moderately long, subparallel to near the middle

and narrowing thence to the apex, the humeri excavate for the reception of the hind angles of the pro-—

thorax, the apices conjointly rounded; finely striate-punctate, the punctures widely separated from each

other (in one specimen not coarser than those of the interstices towards the suture); the interstices flat,

sparsely, finely punctate. Beneath thickly punctured; prosternal sutures deeply excavate in front;

mesosternum declivous, the sides not raised.

Length 103-113, breadth 23-8 millim. (d 9.)

Hab. Mexico (coll. Janson); Panama, Obispo (Salvin).

Two examples—a male from Panama and a female from Mexico. This insect

resembles A. transversus, Cand., from Colombia, but differs from the type (2) of that

insect in having the head transversely depressed between the eyes, the thorax more

closely and more coarsely punctured, and the elytra more distinctly seriate-punctate.

In the Panama specimen ( ¢ ) the punctures of the striz are confused with those of the

interstices towards the suture ; in the Mexican example ( 2? ) the punctures of the inner

strie are coarser, larger than those of the interstices. The Panama specimen is

figured.

23, Anoplischius pallidus.

Moderately elongate, narrow, rather depressed, shining, testaceous or brownish-testaceous, thickly clothed with

long fulvous hairs. Head moderately convex, coarsely, closely punctate, the frontal carina prominent,

rounded anteriorly ; antenne rather stout, feebly serrate, in the male extending to the basal third of

the elytra, shorter in the female, the third and following joints obsoletely carinate along the middle,

3 and 4 equal in length. Prothorax slightly broader than long, the sides almost straight, gradually con-

verging from the base, feebly rounded in front; the hind angles divergent, strongly produced, very sharply

carinate above; the surface sparsely, coarsely punctate, obsoletely canaliculate behind. Scutellum

sparsely punctured. Elytra three times the length of the prothorax, narrowing from about the basal third,

the apices narrow and conjointly rounded; finely and shallowly punctate-striate, the punctures becoming

coarser at the sides and rather widely separated ; the interstices almost flat, sparsely punctured. Beneath

thickly punctured ; prosternal sutures deeply excavate in front; mesosternum declivous, the sides not

raised ; posterior coxal plates feebly subangularly widened opposite the point of insertion of the femora.

Length 82-102, breadth 23-23 millim. (¢ 9.) .

Hab. Panama, Bugaba (Champion).

Seven specimens, four of which are males. Allied to A. transversus and A. foves-

252

316 SERRICORNIA.

frons; but differs from both in the less transverse thorax, the sides of which are

oblique and the hind angles divergent, and also in the subangularly dilated posterior

coxal plates. The species is unknown to Dr. Candéze.

CREPIDIUS.

Crepidius, Candéze, Monogr. Elat. ii. p. 80 (1859).

A genus containing ten described species—eight from South America and two from

the island of Guadaloupe. One of the South-American forms extends northwards to

Nicaragua.

1. Crepidius emarginatus. (Tab. XIV. fig. 1,9.)

Crepidius emarginatus, Cand. Monogr. Elat. ii. p. 84’.

Hab. Nicaragua, Chontales (Belt, 2. M. Janson).—Brazit 1.

I have seen eight specimens of this species from Chontales, all females but one, the

latter in mutilated condition, without legs or antenne.

A female specimen named by Candéze is contained in the Janson collection ; this is

from the original locality, Brazil.

ISCHIODONTUS.

Ischiodontus, Candéze, Monogr. Elat. ii. p. 90 (May 1859).

Tricrepidius, Motschulsky, Bull. Mosc. xxxii, 2, p. 866 (1859).

This is a genus containing seventy described species, all American *, ranging from

the Southern United States to Uruguay. Of this number, no less than sixty-five are

from Tropical America, three of these inhabiting the Antilles. Forty-five species are

here enumerated from within our limits, twenty-four of which are described as new.

Amongst the latter, it may be noted that a considerable number have metallic elytra—

one of these, I. resplendens, being, perhaps, the most brilliantly coloured species of the

family known as yet from Tropical America; very few forms of this kind have been

described by Candéze. The genus Ischiodontus is an extremely difficult one to deal

with, many of the species being very variable in colour and size, and also varying in

different localities, The females, too, often differ considerably from the males, and they

cannot always be satisfactorily located unless accompanied by their respective partners.

In some few species, I. atroceruleus, I. resplendens, I. marginatus, I. denticornis, and

* I. hawaiensis, Cand., from the Sandwich Is., is probably an introduced American species, like Chalcolepi-

dius erythroloma,

ISCHIODONTUS. 317

T. griseipilis, the prosternal sutures, as in Crepidius, are not, or very feebly, grooved in

front; in three, I. erythroderus, I. melas, and I. rufiventris, the sides of the mesosternal

cavity are rapidly and obliquely declivous, these insects forming a transition to the

genus Spilus; and in one, J. aterrimus, a close ally of J. melas, the mesosternum is

formed as in those species here placed at the end of Atractosomus. Good sexual

characters are to be found in the form of the antenne in nearly all the species with a

large third joint (J. carinicornis and its allies excepted) to the antenne; but in those

with a small third antennal joint there is very little sexual difference, the antenne

being comparatively short in both sexes. In all the species here referred to Jschto-

dontus the prosternal process is sharply angulate before, as well as at, the apex; and

the posterior coxal plates are angularly widened, in some species with a triangular

dilatation behind, opposite the point of insertion of the femora. In J. carinicornis and

some few South-American forms the antenne are very distinctly carinate.

A. Antenne with the third joint nearly or quite as large as the fourth.

a. Mesosternum with the sides of the cavity not or feebly raised, gradually

declivous; prosternal sutures (except in I. atroceruleus, I. resplendens,

I. marginatus, and I. denticornis) deeply grooved in front.

a’. Antennee carinate, not much longer in the male than in the female. . Species 1.

6’, Antenne not carinate, much longer in the male than in the female.

a', Upper surface not metallic.

a", Punctures on the head and prothorax simple or feebly umbilicate

(umbilicate on the head in some of the species) . . . . . « Species 2-16.

6", Punctures on the head and prothorax distinctly umbilicate . . . Species 17-22.

6”. Upper surface partly metallic.

é"", Prothorax black (variable in I. chloropterus).

a’. Elytra bluish-black, dull. . . Species 23.

6‘. Elytra violaceous; abdomen black . . . . . . « . Species 24.

c’, Elytra brilliant violaceous, metallic green at the base and apex ;

abdomen rufous. . . 1. ee ee ew ee ee ee «Species 25.

d‘, Elytra zeneous or green, or with an eneous lustre . . . . . Species 26-28.

d", Prothorax rufous or rufo-testaceous, the elytra zneous or green . Species 29-31.

ée, Prothorax and elytra ferruginous or pitchy-red, the sides of the

elytra infuscate and with an eneous lustre, . . . . . . + Species 32.

c', Upper surface metallic—the head and prothorax neous, the elytra

green... we . . . . Species 33.

6. Mesosternum with the sides of the cavity considerably raised, obliquely

declivous.

fl’. Prosternal sutures not grooved in front; antenne slender; body

very elongate, cuneiform. . . . ee we we es) «Species 34.

g'". Prosternal sutures deeply grooved i in front; antenne rather

broadly widened.

e', Prothorax more or less rufous; elytra black . . . . . . . Species 35.

318 SERRICORNIA.

jf’. Prothorax and elytra deep black.

a’, Abdomen black. . . . . 1. we ee ee e+) Species 36,

b°*, Abdomen rufous . .. . . oe . oe ew ee.) Species 37.

c. Mesosternum with the sides of the cavity subhorizontally raised, somewhat

abruptly declivous in front; prosternal sutures shallowly grooved in

front. Body above and beneath deep black. . . . . + + « «+ « Species 38.

B. Antenne with the third joint small, not or very little longer than the second,

the antennz themselves very little longer in the male than in the female ;

mesosternum with the sides of the cavity not or feebly raised ; prosternal

sutures grooved in front. |

c', Elytra without distinct markings . . .. . . 2 « . « « Species 89-43.

d'. Elytra with a black marginal stripe on the anterior r half, . . « « . Species 44.

e’. Elytra bifasciate. «© 2. 2. 1. 2 we ee eee ee we ee) “Species 45.

1. Ischiodontus carinicornis. (Tab. XIV. figg. 7, ¢; 7a, antenna; 74,

genitalia, ¢ .)

Elongate, broad, convex, shining; piceous, pitchy-brown, or obscure ferruginous, the hind angles of the

prothorax more or less ferruginous within, the epipleurs, antenne, and legs ferruginous ; above and

beneath rather sparsely clothed with moderately long yellowish-cinereous hairs. Head closely, coarsely

punctate, triangularly flattened or depressed in front, the frontal carina very prominent, rounded

anteriorly ; antenne less than half the length of the body in the male, a little shorter in the female, the

joints from the third considerably widened, becoming narrower outwards, above and beneath distinctly

carinate along the middle, 3 and 4 equal. Prothorax convex, broader than long, gradually narrowing

from the base, the sides a little rounded anteriorly in the male, more strongly so in the female ; the hind

angles strongly produced, slightly divergent, sharply carinate above; the surface closely, coarsely

punctate, usually with a smooth narrow space along the middle extending from the centre to the base

impunctate, deeply canaliculate behind. Elytra moderately long, in both sexes subparallel to the middle

and narrowing thence to the apex; rather coarsely punctate-striate, the stris (the first excepted) shallow ;

the interstices feebly convex (convex on the basal declivity), flat on the disc, sparsely, finely punctate.

Beneath closely punctured ; prosternal sutures deeply excavate in front; mesosternum declivous ; posterior

coxal plates triangularly dilated opposite the point of insertion of the femora.

Length 144-173, breadth 4~45 millim. (¢ 2.)

Hab. GuateMata, Teleman and Panzos in Vera Paz (Champion); Nicaracua, Chon-

tales (Belt, E. M. Janson); Panama, Bugaba, Volcan de Chiriqui, Los Remedios

(Champion).

Numerous examples. ‘This species is intermediate, as it were, between the South-

American J. puncticollis and I. inornatus, Cand., both of which have the third and

following antennal joints distinctly carinate, a character not mentioned by Candéze in

his descriptions. It is, however, nearest allied to J. inornatus, from which it differs in

its much larger size, more elongate elytra, more depressed front, more prominent

frontal carina, and slightly longer antenne in both sexes. In general shape it re-

sembles [. puncticollis. . I have examined nine specimens of I. inornatus determined

by Candéze, and also many others recently found by Mr. H. H. Smith in the island of

Grenada. A male of J. carinicornis from the Volcan de Chiriqui is figured on our

Plate. _

ISCHIODONTUS. | 319

2. Ischiodontus pinguis.

Ischiodontus pinguis, Cand. Monogr. Elat. ii. p. 100°.

Hab. Mexico 1, Cordova (Sal/é).

Two female specimens from Cordova in the Sallé collection are labelled with the

above name, apparently on Dr. Candéze’s authority, and I somewhat doubtfully refer a

male from the same locality to I. pinguis. The description was evidently taken from

female specimens. The Cordova male resembles the same sex of I. anceps, but it is

much more parallel and has the antenne a little less elongate, the joints similarly

widened. J. pinguis is compared by Candéze with J. énornatus, but that insect has

the antenne carinate.

8. Ischiodontus yucatecus.

Moderately elongate, convex, shining; varying in colour from pitchy-black to brown or reddish-brown, the

prothorax with the hind angles ferruginous, sometimes entirely of that colour, the antenne infuscate or

brownish, the legs and epipleure ferruginous; above and beneath thickly clothed with rather long

yellowish-cinereous hairs. Head closely, coarsely punctate, triangularly depressed in front, the depression

deeper in the male than in the female, the frontal carina moderately prominent, rounded anteriorly ;

antenne about half the length of the body in the male, shorter in the female, the joints from the third

rather broadly widened, becoming narrower outwards, 8 and 4 equal. Prothorax convex, much broader

than long, narrowing from about the middle forwards, the sides subparallel behind and’ rounded in front ;

the hind angles not or feebly divergent, carinate above; the surface coarsely, rather closely punctate,

deeply canaliculate behind. Elytra rather short, narrowing from about the middle in both sexes; coarsely

punctate-striate, the interstices feebly convex and sparsely punctured. Beneath coarsely, somewhat

thickly punctate ; prosternal sutures very deeply excavate in front; mesosternum declivous; posterior

coxal plates triangularly widened opposite the point of insertion of the femora.

Length 7-93, breadth 2-23 millim. (¢ 92.)

Hab. Mexico, Yucatan (coll. Janson), Temax in North Yucatan (Gaumer); Hon-

puras (coll. Candéze).

Sent in abundance from Yucatan. This small, convex species is allied to I. tuspanus,

but it is much smaller and has less elongate elytra. A very small female specimen

from Playa Vicente may belong to the same species; it has the thorax canaliculate

along the middle to near the apex. From the North-American J. fuscus, Lec., it may

be known by its more transverse thorax and the rounded (not truncate) frontal carina.

4, Ischiodontus vetulus.

- Ischiodontus vetulus, Cand. Monogr. Elat. ii. p- 116°.

Dicrepidius villosus, Pilate, in litt.

Hab. Mexico (coll. Chevrolat1), Yucatan (Pilate, in coll, Janson).

We are indebted to M. Fleutiaux of Paris for the loan of the type of this species, a

wale, and there are two others, also males, in the Janson collection. J. vetulus chiefly

differs from its allies in having the entire surface of the thorax densely, coarsely

punctate, and the pubescence dense and very long. The antenne are elongate, and

more slender than in J. anceps and its allies.

“

320 SERRICORNIA.

5. Ischiodontus depressus.

Ischiodontus depressus, Cand. Monogr. Elat. ii. p. 115’.

Hab. Mexico}.

I have before me two specimens of this species determined by Candéze; both are

males. J. depressus resembles J. badius, but differs from it in having the punctures on

the head and thorax finer and not distinctly umbilicate, and the elytra deeply punctate-

striate. It is more parallel and less convex than J. anceps and its allies, and has the

third and following antennal joints more produced at their inner apical angle.

6. Ischiodontus tuspanus. .

Ischiodontus tuspanus, Cand. Monogr. Elat. ii. p. 113°.

Hab. Mexico }, Tuxtla (Sallé), Teapa (Pilate, in coll. Janson); British Honpuras

(coll. Janson), R. Hondo (Blancaneaux) ; Guatemaua, Yzabal (Sallé), Coban (Conradt) ;

NicaRaGua, Chontales (Belt, £. UM. Janson),

The specimens of this species described by Candéze are reddish-brown or castaneous

in colour; but this colour is not constant, many of our examples having the head and

thorax (the hind angles excepted) infuscate or piceous, and the elytra slightly in-

fuscate, or with the apex darker. J. tuspanus is closely allied to J. anceps, but it is

lighter in colour; the antenne are less elongate in the male; the elytra are more

parallel in both sexes, narrowing from about one-third from the base in the male and

from the middle in the female. The antenne are ferruginous, about half the length

of the body in the male, shorter in the female, the joints from the third rather broadly

widened, becoming narrower outwards.

7. Ischiodontus posticus. (Tab. XIV. fig. 8, 3.)

Ischiodontus posticus, Cand. Elat. Nouv. v. p. 22°.

Hab. Britise Honpvuras ! (coll. Janson) ; Guatemaua (Sallé), Coban (Conradt), Sabo

and San Gerénimo in Vera Paz (Champion).

Closely allied to J. anceps, Cand., and with the head and antenne formed as in that

species, but differing from it in having the elytra reddish-brown, with the apical third

black. Two males from San Gerénimo, Guatemala, perhaps belong to the same

species; they have the thorax lighter in colour and more coarsely punctured. A male

from Coban is figured.

8. Ischiodontus elongatus.

Very elongate, moderately convex, rather shining ; variable in colour—reddish-brown, with the sides of the

elytra in some specimens broadly infuscate, or pitchy-brown, with the hind angles of the prothorax and

the suture obscure ferruginous; the antenne, epipleure, and legs ferruginous; above and beneath

ISCHIODONTUS. 321

somewhat thickly clothed with long cinereous hairs. Head closely, coarsely punctate, the punctures

more or less umbilicate, the front triangularly depressed in the male, the frontal carina prominent, rounded

anteriorly ; antenne in the male extending to about the middle of the elytra, much shorter in the female,

with the joints from the third rather broadly widened, becoming gradually narrower outwards, joints

3 and 4 equal. Prothorax broader than long, the sides gradually converging from the base, a little

rounded anteriorly in the female; the hind angles moderately produced, slightly divergent, a little in-

curved at the tip, carinate above; the surface thickly, coarsely punctate, deeply canaliculate behind.

Elytra elongate, gradually narrowing from the base in the male, subparallel to the middle in the female ;

coarsely punctate-striate, the interstices feebly convex at the sides, flat on the disc, and sparsely punc-

tured. Beneath thickly punctured ; prosternal sutures deeply excavate in front; mesosternum declivous ;

posterior coxal plates triangularly widened opposite the point of insertion of the femora.

Length 103-133, breadth 24-3 millim. (¢ 2.)

Hab. Mexico (coll. Janson), Chilpancingo, Cuernavaca (Hf. H. Smith), Juquila in

Oaxaca (Sallé). |

Seven specimens. The three from Juquila are reddish-brown, with the elytra

infuscate at the sides, these examples resembling J. marginatus in colour. In the coarse

punctuation of the head and thorax this insect approaches J. badius, but it differs from

that species in its narrow, elongate shape. ‘The specimen in the Janson collection is

labelled J. angustipennis, from which it may be known by its much more elongate shape,

less densely punctured thorax, and smoother elytral interstices. The more parallel and

narrower shape, and the more equally widened antennal joints in the male, separate

it from J. anceps, of which it may prove to be an extreme variety.

9. Ischiodontus angustatus. (Tab. XIV. fig. 9, 3.)

Moderately elongate, narrow, rather convex, shining; ferruginous, the legs and antenne testaceous ; above and

beneath clothed with long yellowish-cinereous hairs. Head densely, coarsely punctate, the punctures

here and there transversely confluent, feebly triangularly depressed in front, the frontal carina not

prominent; antenns extending to the middle of the elytra, the joints from the third considerably

widened, becoming narrower outwards, 3 and 4 equal. Prothorax subquadrate, about as long as broad,

the sides subparallel, slightly converging in front ; the hind angles moderately produced, feebly divergent,

carinate above, slightly incurved at the tip; the usual notches on the basal margin almost obsolete; the

surface thickly, rather coarsely punctate, the punctures becoming slightly umbilicate at the sides, canali-

culate behind. Elytra three times the length of the prothorax, gradually narrowing from a little below

the base; coarsely punctate-striate; the interstices convex throughout, sparsely and rather roughly

punctured. Beneath thickly punctured; mesosternum declivous; posterior coxal plates angularly widened

opposite the point of insertion of the femora.

Length 8, breadth 2 millim. (¢.)_

Hab. Guatrmata, Champerico (Champion).

A single specimen, found on the Pacific coast at Champerico. This species resembles

I. angustipennis ; but it is smaller and narrower *, the punctures on the thorax are finer,

more scattered, and slightly umbilicate at the sides only, the elytral interstices convex

throughout and more sparsely punctured.

10. Ischiodontus subparailelus.

Elongate, narrow, moderately convex, subparallel ; pitchy-black, shining, the antenne rufo- -ferruginous, the

* Tt is narrower than represented by our artist.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1895. 2T

322 SERRICORNIA.

intermediate joints slightly infuscate in one specimen, the epipleure and legs ferruginous; above and

beneath rather sparsely clothed with long yellowish-cinereous hairs. Head coarsely, moderately closely

punctate, deeply transversely depressed in front in the male, feebly so in the female, the frontal carina

prominent, rounded anteriorly ; antenne half the length of the body in the male, much shorter in the

female, the joints from the third considerably widened, becoming narrower outwards, 3 and 4 equal.

Prothorax broader than long, convex, the sides gradually converging from the base, a little rounded

anteriorly ; the hind angles moderately produced, slightly divergent, carinate above; the surface very

sparsely, finely punctate, canaliculate behind. Elytra nearly four times as long as the prothorax, parallel

to the middle and gradually narrowing beyond, the apices conjointly rounded; with rows of rather fine

scattered punctures placed upon almost obsolete striw; the interstices flat on the disc, feebly convex at

the sides, and convex on the basal declivity, very sparsely punctate. Beneath sparsely punctured ; pro-

sternal sutures deeply excavate in front; mesosternum declivous ; posterior coxal plates triangularly

widened opposite the point of insertion of the femora. .

Length 103-12, breadth 24-3 millim. (¢ 9.)

Hab. Costa Rica, Volcan de Irazu (Rogers).

Two females and one male. Closely allied to J. anceps, Cand., but differing from

that insect in its narrow subparallel shape in both sexes, the antennz less elongate in

the male, the elytra relatively more elongate.

11. Ischiodontus atricornis.

Elongate, rather convex, shining; extremely variable in colour—usually brown or reddish-brown, with the

head black, and the apical third of the elytra indeterminately, and often the sides also, more or less

infuscate ; the prothorax obscure rufous, often with an infuscate patch on the anterior part of the disc,

sometimes entirely rufous, or piceous with the hind angles only lighter ; the elytra sometimes piceous, with

the suture brownish or ferruginous ; the antenne black or infuscate; the legs and under surface ferrn-

ginous or fusco-ferruginous ; above and beneath thickly clothed with long yellowish-cinereous hairs.

Head coarsely, closely punctate, triangularly depressed in front, deeply so in the male; the frontal carina

prominent, rounded anteriorly ; antenne about half the length of the body in the male, shorter in the

female, the joints from the third considerably widened, becoming slightly narrower outwards, 3 and

4 equal. Prothorax broader than long, the sides converging from the base, a little rounded ante-

riorly ; the hind angles strongly produced, sharp, carinate above; the surface rather sparsely, coarsely

punctate, the punctuation denser at the sides, canaliculate behind, and with a narrow smooth Space down

the middle. Elytra moderately elongate, gradually narrowing from the base in the male, more paralle]

in the female ; rather coarsely punctate-striate ; the interstices feebly convex at the sides, flatter on the

disc, convex on the basal declivity, and sparsely punctured. Beneath somewhat thickly punctured ;

prosternal sutures deeply excavate in front; mesosternum declivous; posterior coxal plates triangularly

dilated opposite the point of insertion of the femora.

Length 83-133, breadth 2-37 millim. (¢ 2.)

Hab. Mexico, Tapachula in Chiapas (//6ge); Guaremaua (Sallé, Rodriguez), near

the city (Salvin), Las Mercedes, San Isidro, Zapote, Capetillo (Champion); Panama,

Bugaba, Volcan de Chiriqui (Champion).

Collected in abundance by myself at Capetillo. Closely allied to J. anceps, Cand.,

but with the antenne infuscate or black, and less elongate in the male, the joints from

the third not so sharply serrate and more equal in width, the elytra more gradually

narrowed in this sex; the thorax is usually in part, or entirely, pitchy-red, and

the elytra are brown or reddish-brown, with the apex and sides indeterminately

ISCHIODONTUS. 323

infuscate. In some of the smallest males the elytra are more parallel towards the base.

The ferruginous or pitchy-red under surface and legs and lighter elytral pubescence

distinguish J. atricornis from I. erythroderus, Cand. One of the varieties is coloured

like J. posticus, Cand., but that species has the thorax black, the hind angles excepted,

and the antenne ferruginous. The insect is exceedingly variable in size and colour.

Some Guatemalan specimens of this species are labelled J. picipennis, Cand., in the

Janson collection, a name used by Steinheil for another member of the same genus.

In Guatemala J. atricornis appears to be confined to the Pacific slope.

12. Ischiodontus thoracicus.

Ischiodontus thoracicus, Cand, Monogr. Elat. u. p. 112°.

“‘ Niger, sparsim longe fulvo-pubescens ; fronte prominula ; prothorace rufo-sanguineo, longitudine latiore, a

basi attenuato, inequaliter fortiterque punctato; elytris parallelis, punctato-striatis; corpore subtus

pedibusque rufescentibus.—Long. 10, lat. 24 millim.”

Hab. Mexico (Klingethofer ').

Described from a single example.

13. Ischiodontus chiriquensis. (Tab. XIV. figg. 10, ¢; 104, genitalia, ¢.)

Elongate, narrow, moderately convex, shining; piceous or pitchy-brown, the hind angles of the prothorax, and

sometimes the basal and apical margins also, ferruginous, this colour in a few examples extending to the

greater part of the surface, leaving a transverse median fascia only infuscate, the suture usually reddish-

brown ; the antenne black or pitchy-brown, the legs testaceous or obscure testaceous ; above and beneath

somewhat thickly clothed with long fulvous or fulvo-cinereous hairs. Head densely, rather coarsely

umbilicate-punctate, deeply triangularly depressed in front in the male, shallowly so in the female; the

frontal carina prominent, rounded anteriorly ; the eyes large and smooth; antenne more than half the

length of the body in the male, much shorter in the female, the joints from the third moderately widened,

becoming narrower outwards, 3 and 4 equal. Prothorax broader than long, moderately convex, the sides

converging from the base, almost parallel in front in the male, slightly rounded in the female; the hind

angles acute, strongly divergent in the male, moderately so in the female, carinate above; the surface

sparsely, finely punctate, deeply canaliculate behind. Elytra moderately elongate, narrowing from about

the middle in both sexes, but more parallel in the female; finely punctate-striate, the interstices feebly

convex at the sides, flat on the disc, and sparsely punctured. Beneath rather sparsely punctate; pro-

sternal sutures deeply excavate in front; mesosternum declivons; posterior coxal plates triangularly

widened opposite the point of insertion of the femora.

Length 8-94, breadth 2-23 millim. (¢ Q.)

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

Collected in abundance on the slopes of the Volcan de Chiriqui. Allied to L. anceps,

I. nigricornis, &c.; but much smaller and more parallel, the antennz shorter and with

the joints from the third much less widened, the punctures on the head coarse and

umbilicate, the hind angles of the thorax divergent and acute, the coxal plates less

widened opposite the point of insertion of the femora. Two specimens from Bugaba

differ from those described in having the hind angles of the thorax obtuse at the tip

and scarcely divergent. ‘The species is not known to Dr. Candéze.

27 2

524 SERRICORNIA.

14. Ischiodontus anceps. (Tab. XIV. figg. 11, ¢; 11 a, antenna.)

Ischiodontus anceps, Cand. Monogr. Elat. 11. p. 116°.

Hab. Mexico}, Puebla, Orizaba, Tuxtla, Cordova, Playa Vicente (Sad/é), Cuernavaca,

Teapa (H. H. Smith), Yautepec, Jalapa, Tapachula (Hoge); British Honporas,

R. Sarstoon, R. Hondo (Blancaneaus); Guatemata, Panzos, Teleman, Panima, and San

Juan in Vera Paz, El Tumbador, El Reposo, Las Mercedes (Champion), Coban (Con-

radt); Nicaracua (Sallé), Chontales (Belt, EF. M. Janson); Panama, Bugaba

(Champion).

This is perhaps the commonest and most widely distributed species of the genus

within our limits. It may be known from most of its allies by the elytra being

narrowed from the base in both sexes; the antenne in the male are very elongate,

with the joints from the third broadly widened, becoming narrower outwards. The

suture of the elytra is often brownish or ferruginous, the antenne and legs being of

the same colour. The head is triangularly excavate in front (in some specimens very

deeply) in the male, flattened or slightly depressed in the female. The sexes, as usual,

differ greatly in the length of the antenne. The pubescence is yellowish- or fulvo-

cinereous. The insect has been found in plenty at Jalapa and also in Guatemala. In

a few specimens (¢ 2) from Cordova and Jalapa the head is flattened or feebly

transversely depressed in front and the elytra are rather more parallel; they are

apparently varieties of this species. A male from Chontales is figured.

15. Ischiodontus nigricornis.

Ischiodontus nigricornis, Cand. Monogr. Elat. ii. p. 116°.

flab. Mexico, Cordova!, Toxpam (Sai/é).

I have seen three specimens only of this species, all females. It is, perhaps, a

variety of J. anceps, from which it differs in its infuscate or black antenne.

16. Ischiodontus balteatus. (Tab. XIV. fig. 12, 9.)

Elongate, moderately convex, shining ; pitchy-red, the head, antenne, and the sides of the elytra broadly

from the base to the apex, black, the black on the elytra gradually extending inwards beyond the middle,

the legs pitchy-brown ; the under surface pitchy-red, the apex of the abdomen black; above and beneath

rather sparsely clothed with long hairs, which are fuscous on the elytra and fulvo-cinereous on the other

parts of the body. Head thickly and rather coarsely punctured, broadly triangularly depressed in front,

the frontal carina prominent, rounded anteriorly ; antenne less than half the length of the body, the

joints from the third moderately widened, becoming narrower outwards, 3 and 4 equal. Prothorax

broader than long, moderately convex, gradually narrowing from the base, the sides a little rounded

anteriorly ; the hind angles moderately produced, slightly divergent, incurved at the tip, carinate above ;

the surface sparsely, finely punctate, obsoletely canaliculate down the middle, the channel deepening

behind. Elytra elongate, gradually narrowing from the base ; rather coarsely striate-punctate, the striz

(the first excepted) almost obsolete; the interstices flat (except on the basal declivity), sparsely punctured.

Bencath somewhat thickly punctured ; prosternal sutures deeply excavate in front; mesosternum gradu-

ISCHIODONTUS. O20

ally declivous ; anterior process of. the metasternum declivous in front; posterior coxal plates strongly

triangularly dilated opposite the point of insertion of the femora. .

Length 143, breadth 34 millim. ( 9.)

Hab. GuaTEMALA, San Gerénimo in Vera Paz (Champion).

One female specimen. ‘This insect, at first sight, would appear to be a colour-variety

of I. erythroderus, Cand. ; but it differs from that species in having the sides of the

mesosternum very gradually declivous, and not raised behind, and the anterior process

of the metasternum less convex and more declivous in front. It is perhaps nearest

allied to I. nigricornis, but may be known from it by its infuscate legs.

17. Ischiodontus sus.

Ischiodontus sus, Cand. Monogr. Elat. ii. p. 114, t. 2. figg. 9,9a (¢)*.

Hab. Mexico!, Puebla, Cordova (Sallé), Mescala in Guerrero (H. H. Smith), Chil-

pancingo, Jalapa (Hoge).

Var. a. The punctures of the elytral strie very coarse and deep; the interstices smoother and more

convex. (<6.)

Hab. Mexico, Tres Marias Is. (/orrer).

Var. 3. The punctures of the elytral striw fine, the striz themselves very sharply defined; the interstices

smoother, almost flat, rather sparsely punctate ; length 134-144 millim. (@.)

Hab. Mexico (coll. Janson, ea Candéze), Pinos Altos in Chihuahua (Buchan-Hepburn),

Guanajuato (Sal/é).

This species has the punctures of the head and thorax very coarse, close, and

umbilicate, the elytral strie sharply defined, and the interstices roughly punctured

towards the base. The males are less elongate and more convex than in the closely

allied J. rufudus. I have seen nine examples of the typical form, and three of each of

the varieties. In some specimens the thorax has a smooth narrow space down the

middle, which is deeply impressed at the base.

| 18. Ischiodontus rufulus.

Anoplischius rufulus, Cand. Monogr. Elat. 11. p. 58’. |

Hab. Mexico, Orizaba (coll. Chevrolat +), Jalapa (Hoge), Guanajuato, Yolos (Sad/é) ;

GuateMALa (Saldé).

The type of this species, a female, has been kindly communicated by M. Fleutiaux.

We have received a long series of it from Jalapa, and also numerous specimens from

other localities. The males have very elongate antenne. ‘The punctures on the head

and thorax are coarse and umbilicate. The insect is larger and much more elongate

than the allied J. angustipennis. A male from Jalapa is figured.

326 SERRICORNIA.

19. Ischiodontus angustipennis.

Ischiodontus angustipennis, Cand. Monogr. Elat. ii. p. 115’.

Hab. Mexico} (Sallé, ex coll. Sturm), Tepetlapa in Guerrero (H. H. Smith).

We have received two males and two females of this species from Tepetlapa; the

males agree well with Candéze’s type. It is very closely allied to Z. rufulus, but is

considerably smaller, and has less elongate elytra and less divergent hind angles to the

thorax. The punctures on the head and thorax are coarse and umbilicate, the elytral

interstices are thickly and roughly punctured throughout. The two males in the Sallé

collection are much darker in colour; they have the head and thorax in great part

piceous and the elytra brown. |

20. Ischiodontus approximatus.

Ischiodontus approximatus, Cand. Monogr. Elat. ii. p. 113°.

Hab. Mexico }.

There is a single (3) example of this species in the Janson collection, presumably

the type. It resembles J. tuspanus, but it has the punctures on the head and thorax

coarse, shallow, and umbilicate, the head flattened in front.

21. Ischiodontus quadraticollis.

Ischiodontus quadraticollis, Cand. Compt. Rend. Soc. Ent. Belg. 1878, p. lix (Elat. Nouv. i.

p. 12)’.

Hab. Guatemata! (coll. Janson), Zapote (Champion).

I am indebted to Dr. Candéze for the loan of his types (¢ 2) of this species, and

two others (¢ ) are also before me. The insect is extremely closely allied to J. rufulus,

but is broader and more robust, and has the posterior coxal plates more sharply

angulate towards the middle. In two of the specimens the coarse umbilicate punctua-

tion of the thorax is very dense, and the smooth median line slightly raised.

22. Ischiodontus badius.

Ischiodontus badius, Cand. Monogr. Elat. ii. p. 114‘.

Hab. Mexico, Jalapa (Hoge), Tepansacualco in Oaxaca (Sallé); British Honpuras

(Blancaneaux); Guatemata, Yzabal (Sallé); t Nicaragua },

The type of J. badius,a male, is contained in the Sallé collection ; it is labelled

“Yzabal.” This specimen has the thorax sulcate along the middle, a character pro-

bably due to accidental circumstances and not possessed by the other examples I refer

to the species. J. badius is closely allied to I. rufulus, from which it chiefly differs in

the smoother elytral interstices and the shorter and less divergent hind angles of the

ISCHIODONTUS. 327

thorax. In some of the specimens the elytra are finely punctate-striate and the inter-

stices flat on the disc, as in the type; but in others the elytra are coarsely punctate-

striate throughout, with the interstices convex. The punctures on the head and thorax

are very coarse, close, and umbilicate.

23. Ischiodontus atroceruleus.

Ischiodontus atroceruleus, Cand. Monogr. Elat. ii. p. 111°.

Dipropus angusticollis, Sturm, in litt.

fab. Mexico (Sallé, ex Sturm), Vera Cruz (coll. Chevrolat?).

The type of this species, a male, has been kindly communicated by M. Fleutiaux of

Paris, and there is a specimen, also a male, in the Sallé collection. It may be known

from its allies by the bluish-black elytra. ‘The prosternal sutures are scarcely grooved

in front.

24. Ischiodontus cyanopterus. (Tab. XIV. fig. 13, 2.)

Ischiodontus cyanopterus, Cand. Monogr. Elat. 11. p. 1121.

Hab. Mexico, Cordova in Vera Cruz (Sal/e?).

I have seen three specimens of this beautiful species, all females.

25. Ischiodontus resplendens. (Tab. XIV. fig. 14, 9.)

Elongate, subcuneiform, convex, very shining ; black, the elytra brilliant violaceous, this colour changing into

metallic green at the base and sides and beyond the middle, and to golden at the apex; the abdomen

entirely rufous ; the legs blackish-brown ; above and beneath somewhat thickly clothed with moderately

long hairs, which are blackish on the upper surface. Head convex, sparsely, finely punctate, deeply

excavate on either side in front, the frontal carina prominent, rounded anteriorly ; antenne moderately

long, the joints from the third broadly widened and serrate, becoming narrower outwards, 3 and 4 sub-

equal. Prothorax as long as broad, convex, the sides a little rounded and rapidly converging from the

middle forwards; the hind angles strongly produced, curved inwards at the tip, not carinate above; the

surface sparsely, finely punctate, canaliculate behind. Elytra elongate, gradually narrowing from the

base, slightly depressed along the suture anteriorly; sparsely, finely punctate, without trace of

stria, except along the suture; the interspaces quite flat, even at the base. Beneath sparsely punctured ;

prosternal sutures feebly excavate in front; mesosternum declivous, the sides a little raised; posterior

coxal plates triangularly widened opposite the point of insertion of the femora.

Length 153, breadth 33 millim. ( 2.)

Hab. Guaremata, San Gerénimo (Champion).

One specimen. Allied to J. cyanopterus, Cand., but larger and much more elongate,

the hind angles of the thorax not carinate above, the abdomen rufous. It is more

brilliantly coloured than any species of the group Dicrepidiini yet discovered.

26. Ischiodontus virens.

Moderately elongate, rather narrow, feebly convex, shining; pitchy-black, the elytra greenish-zneous, the

antenne black, the legs and under surface piceous, the coxe, knees, and tarsi more or less ferruginous;

above and beneath thickly clothed with very long yellowish-cinereous hairs. Head densely, moderately

SERRICORNIA.

ae 2)

finely punctate, broadly triangularly depressed in front, the frontal carina prominent, rounded anteriorly ;

antenne nearly reaching the middle of the elytra, the joints from the third moderately widened, becoming

narrower outwards, 3 and 4 equal. Prothorax broader than long, moderately convex, narrowing from

the base, sinuate at the sides behind ; the hind angles greatly produced, strongly divergent, acute, feebly

carinate above; the basal margin without the usual impression on either side; the surface closely and

somewhat coarsely punctate, canaliculate from the base to near the apex. LElytra moderately long,

parallel to the middle, and narrowing thence to the apex; finely punctate-striate, the strie (the first

excepted) almost obsolete; the interstices flat, thickly punctured, the punctures finer than those of the

strie. Beneath thickly punctured; prosternal sutures deeply excavate in front ; mesosternum declivous ;

posterior coxal plates angularly widened opposite the point of insertion of the femora.

Length 104, breadth 23? millim. (<.)

Hab. Mexico, Juquila in Oaxaca (Sal/é).

“One male example. Allied to J. viridis, but less convex, the head and thorax

pitchy-black ; the thorax canaliculate down the middle, sinuate at the sides behind,

and with more divergent hind angles, the foveee on the basal margin obsolete.

27. Ischiodontus metallicus. (Tab. XIV. figg. 15, ¢; 15a, genitalia, 3.)

Elongate, moderately convex, shining ; pitchy-black, the elytra greenish-sneous, with the suture and epipleure

obscure ferruginous, the antenne pitchy-brown, the legs fusco-testaceous ; above and beneath rather

sparsely clothed with long blackish-brown hairs. Head sparsely, finely punctate, the front deeply

triangularly excavate, the frontal carina very prominent, rounded anteriorly ; antenne half the length of

the body, the joints from the third moderately dilated, 3 and 4 equal. Prothorax a little broader than

long, trapezoidal, rapidly narrowing from the base forwards; the hind angles strongly produced, widely

divergent, slightly incurved at the tip, sharply carinate above; the surface finely, sparsely punctate,

transversely depressed in the middle before the base. LElytra elongate, subparallel to about the middle,

and narrowing thence to the apex; somewhat coarsely striate-punctate, the punctures becoming as fine

as those of the interstices towards the apex; the interstices sparsely, finely punctate, and (except on the

basal declivity) flat. Beneath somewhat thickly punctured; prosternal sutures deeply excavate in front;

mesosternum declivons, the sides a little raised; posterior coxal plates broadly and angularly widened

opposite the point of insertion of the femora.

Length 12, breadth 3 millim. (<¢.)

Hab. Panama, Volcan de Chiriqui (Champion).

One male example. This insect resembles /. chloropterus; but may be easily known

from the corresponding sex of that variable species by its sparsely and finely punctured

head, the front of which is very deeply triangularly excavate, the more elongate

antenne, and the blackish pilosity. It approaches Anoplischius chalcopterus, which

also has the front very deeply excavate in the male, but differs from that insect in the

broadly and angularly widened coxal plates, and the stouter and much less elongate

antenne.

28. Ischiodontus chloropterus.

Dicrepidius chloropterus, Er. in Schomburgk’s Reisen in Brit. Guiana, iii. p. 558°.

Ischiodontus chloropterus, Cand. Monogr. Elat. ii. p. 101, t. 2. figg. 5, 5a?; Steinh. Col. Hefte,

xiv. p. 120°.

Ischiodontus smaragdinus, Cand. loc. cit. p. 102+.

ISCHIODONTUS. 329

Hab. Mexico*, Tuxtla and Cordova (Saddé), Tapachula in Chiapas (Hége); GuaTEMALa,

Panzos and San Juan in Vera Paz, Zapote (Champion); Nicaracua (Sallé), Chontales

(Belt, E. M. Janson); Panama, Bugaba, Caldera, Volcan de Chiriqui (Champion),

Taboga I. (J. J. Walker).—Cotomsia 13 ; Venezveta; GuIANA ! 2.

With Candéze’s specimens before me I am unable to separate J. smaragdinus from

I. chloropterus, the punctuation of the thorax being variable—very sparse and fine in

some specimens, coarse and rather close in others. ‘The males have the thorax more

narrowed anteriorly, with the sides less rounded than in the females. The thorax also

varies in colour from rufous to almost entirely piceous; in many specimens it is rufous,

with a transverse piceous band across the middle, this colour sometimes extending so

as to leave only the anterior margin and the hind angles rufous. A common insect in

Central America. ‘The males appear to be very much rarer than the females.

29. Ischiodontus denticornis. (Tab. XIV. figg. 16, ¢ ; 16a, antenna.)

Mederately elongate, subcuneiform, convex, shining; the head and antenne black, the prothorax, the elytral

epipleure, and the under surface rufous or rufo-testaceous, the scutellum obscure ferruginous, the elytra

metallic green, with the suture obscure ferruginous, the legs testaceous; above and beneath thickly

clothed with long yellowish-cinereous hairs. Head sparsely, rather finely punctate, transversely depressed

in front, deeply so in the male ; the frontal carina prominent, rounded anteriorly in the female, slightly

flexed downwards in the middle in the male; antenne—( ¢ ) about four-fifths the length of the body, the

joints from the third very broadly widened, becoming narrower outwards, 3-8 each with their inner

apical angle strongly and obliquely produced, 3 and 4 subequal—( 2 ) about half the length of the body,

the joints from the third moderately widened. Prothorax broader than long, convex, narrowing from the

base, the sides a little rounded anteriorly in the female; the hind angles strongly produced, scarcely

divergent, carinate above ; the surface sparsely, finely punctate, canaliculate behind. Elytra moderately

elongate, narrowing from the base ; rather finely punctate-striate, the stris very shallow, the interstices

flat, sparsely minutely punctate. Beneath somewhat thickly punctate; prosternal sutures very feebly

grooved in front ; mesosternum declivous ; posterior coxal plates angularly widened opposite the point of

insertion of the femora. ;

Length 83-92, breadth 2-2; millim. (¢ 2.)

Hab. GuateMata, Zapote (Champion).

Var.? The elytral pubescence fuscous, the legs fusco-testaceous, the hind angles of the prothorax divergent

(2.)

Hab. Gvatemata, San Gerdénimo (Champion).

Three specimens—a pair of the typical form anda female of the variety. This

species differs from all the allied forms in the strongly serrate and exceedingly elongate

antenne in the male. The frontal carina in this sex is less rounded than in the female,

appearing subangular in the middle as viewed from above.

30. Ischiodontus prasinopterus. (Tab. XIV. figg. 17,3; 174, antenna.)

Moderately elongate, narrow, rather convex, shining; the head and antennz black, the prothorax and under

surface rufo-testaceous, the scutellum obscure ferruginous, the elytra (the epipleure included) golden-

green, with the suture very narrowly obscure ferruginous, the legs testaceous ; above and beneath thickly

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1895. 2U

330 SERRICORNIA.

clothed with long yellowish-cinereous hairs. Head somewhat convex, flattened in front, closely, rather

coarsely punctate, the frontal carina prominent, rounded anteriorly ; antenne extending to the middle of

the elytra, the joints from the third moderately widened, becoming narrower outwards, 3 as wide as, but

slightly shorter than, 4. Prothorax broader than long, rather convex, narrowing from the base; the

hind angles strongly produced, divergent, finely carinate above ; the surface sparsely, rather coarsely:

punctate, canaliculate behind. Elytra moderately elongate, subparallel to the middle, and narrowing

thence to the apex; somewhat coarsely punctate-striate, the striz shallow; the interstices almost flat,

thickly punctured. Beneath thickly punctured; prosternal sutures deeply excavate in front; mesosternum

declivous ; posterior coxal plates angularly widened opposite the point of insertion of the femora.

Length 8-9, breadth 2-2} millim. (¢.)

Hab. Mexico, Juquila in Oaxaca (Sallé).

Two male examples. Allied to J. denticornis, but more parallel, the head more

densely and more coarsely punctured, the antenne very differently formed in the male,

the prosternal sutures deeply grooved, &c.

31. Ischiodontus sneipennis.

Moderately elongate, convex, shining; the head ferruginous, or piceous with the front obscure ferruginous, the

antenne black, with the basal joint ferruginous, the prothorax, the elytral epipleure, and the under

surface rufo-testaceous, the scutellum ferruginous, the elytra blackish- or greenish-eeneous, with the suture

obscure ferruginous, the legs testaceous, the apex of the tibiz infuscate in one specimen ; above and

beneath somewhat thickly clothed with long yellowish-cinereous hairs. Head densely, rather finely

punctate, flattened in front in both sexes, the frontal carina prominent, slightly truncate anteriorly ;

antenne—( ¢ ) extending nearly to the middle of the elytra, with the joints-from the third elongate and

moderately widened, becoming narrower outwards, 3 and 4 equal—( 2 ) very short, only about one-third

the length of the body, joints 4-10 not much longer than broad. Prothorax moderately convex in the

male, very convex in the female, transverse, narrowing from the base in the male, the sides subparallel

behind and rounded anteriorly in the female ; the hind angles moderately produced, carinate above; the

surface closely, moderately finely punctate, with a narrow space down the middle impunctate, obsoletely

canaliculate behind. Elytra moderately long, subparallel to the middle, and narrowing thence to the

apex; rather coarsely punctate-striate, the interstices feebly couvex and thickly punctured. Beneath

thickly punctured ; prosternal sutures deeply excavate in front; mesosternum declivous; posterior coxal

plates angularly widened opposite the point of insertion of the femora.

Length 73-83, breadth 2-2} millim. (¢ 2.)

Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith).

One pair. ‘The female differs considerably from the male, but I have no doubt that

it belongs to the same species; it has the head piceous, the elytra more brightly

coloured, the thorax very convex, and the antenne very short—much shorter than in

the females of all the allied forms. Allied to L. prasinopterus, but more convex, the

thorax closely punctured, the elytra more obscurely coloured and more coarsely

punctate-striate, the head not excavate in front in the male. From J. denticornis it

may be known by the differently formed antennz in both sexes.

32. Ischiodontus marginatus. (Tab XIV. figg. 18,3; 18a, antenna.)

Elongate, subcuneiform, moderately convex, shining; the head black, the prothorax, scutellum, elytra, and

under surface ferruginous or pitchy-red, the elytra with the sides from the base to the apex (except at the

middle in one specimen) rather broadly infuscate, the dark portions with a translucent metallic green or

ISCHIODONTUS. 331

violaceous lustre, which sometimes extends to the whole of the disc; the antenne black or blackish-

brown, the legs pitchy-brown, the knees and the tips of the tarsi ferruginous ; above and beneath rather

sparsely clothed with long yellowish-cinereous hairs, Head closely, rather coarsely punctate, deeply

triangularly excavate in front in the male, shallowly so in the female, the frontal carina very prominent,

rounded anteriorly ; antenne—( ¢ ) fully three-fourths the length of the body, the joints from the third

broadly widened and rather sharply serrate, becoming narrower outwards, 3 and 4 equal—( 2) scarcely

half the length of the body, the joints from the third moderately widened. Prothorax broader than long,

convex, narrowing from the base in the male, the sides a little rounded anteriorly in the female; the

hind angles moderately produced, slightly divergent, incurved at the tip, carinate above ; the surface in

the male sparsely and finely, in the female more coarsely and closely, punctate, obsoletely canaliculate

down the middle, the channel deepening behind. Elytra very elongate, narrowing from the base,

moderately finely punctate-striate, the striz (the first excepted) almost obsolete, the interstices flat (except

on the basal declivity) and sparsely punctured. Beneath somewhat thickly punctured ; prosternal sutures

not grooved in front; mesosternum declivous. Legs elongate; posterior coxal plates triangularly widened —

opposite the point of insertion of the femora.

Length 103-16, breadth 23-43 millim. (¢ @.)

Hab. Guatema.a, Cerro Zunil, Volcan de Atitlan (Champion).

Six males and one female, all from the Pacific slope. The female, as usual, is much

larger than the male ; it also has the head and thorax more closely and more coarsely

punctured. In the exceedingly elongate antenne in the male and ungrooved prosternal

sutures this species approaches J. denticornis; but it is much larger and more elongate,

the elytra are differently coloured, the frontal carina is more prominent, and the

antenne in the male have their joints 3-8 less strongly produced at their inner apical

angle.

33. Ischiodontus viridis. (Tab. XIV. fig. 19, ¢.)

Moderately elongate, rather convex, shining; the head, prothorax, scutellum, and underside zneous, the elytra

metallic-green, the antennz black, the legs pitchy-brown; above and beneath thickly clothed with long

yellowish-cinereous hairs. Head densely, moderately finely punctate, triangularly depressed in front, the

frontal carina prominent, rounded anteriorly ; antenne extending nearly to the middle of the elytra, the

joints from the third rather broadly widened, becoming narrower outwards, 3 and 4 equal. Prothorax

convex, broader than long, narrowing from the base; the hind angles strongly produced, divergent, finely

and obsoletely carinate above; the surface thickly, moderately finely punctate, canaliculate behind.

Elytra moderately long, subparallel to the middle and narrowing thence to the apex ; finely punctate-

striate, the punctures closely placed, the sutural stria deep; the interstices flat, somewhat thickly

punctured, the punctures finer than those of the striw. Beneath rather closely punctured; prosternal

sutures deeply excavate in front; mesosternum declivous; posterior coxal plates angularly widened

opposite the point of insertion of the femora.

Length 23, breadth 24 millim. (<¢.)

Hab. Mexico, Cerro de Plumas (Hége).

One male specimen. This species may be known from all the allied forms by the

brassy head and thorax and brilliant metallic-green elytra. It is less elongate and

more thickly pilose than J. chloropterus and J. metallicus; the head and thorax are

much more closely punctured, and the hind angles of the thorax are obsoletely carinate

at the tip only. ‘The antenne are much more elongate than in the corresponding sex

of I. chloropterus.

2U 2

ao2 SERRICORNIA.

34. Ischiodontus griseipilis. (Tab. XIV. figg. 20, ¢; 20a, antenna.)

Very elongate, narrow, subcuneiform, shining ; pitchy-black, the hind angles of the prothorax and the elytra

castaneous, the antenne fusco-ferruginous, the legs pitchy-brown; above and beneath very sparsely

clothed with long decumbent cinereous hairs, the legs also clothed with cinereous hairs. Head sparsely,

rather finely punctate, the front triangularly depressed in both sexes, but more deeply so in the male, the

frontal carina very prominent, rounded anteriorly; antenne slender, extending to the middle of the

elytra in the male, about half the length of the body in the female, joints 3 and 4 equal. Prothorax

broader than long, narrowing from the base, the sides slightly rounded in the female; the hind angles

moderately produced, slightly divergent, incurved at the tip, not carinate above; the surface finely and

very sparsely punctate, with indications of a faintly impressed channel down the middle. Elytra very

elongate, rapidly narrowing from the base in both sexes; finely striate-punctate, the punctures widely

separated; the interstices flat, each with an irregular row of widely scattered minute punctures.

Beneath sparsely punctured ; prosternal sutures not excavate in front ; mesosternum obliquely declivous,

the sides raised, separated from the metasternum by a deep transverse suture ; anterior process of

the metasternum convex in front ; posterior coxal plates angularly dilated opposite the point of insertion

of the femora.

Length 13-15, breadth 3-34 milliim. (¢ @.)

Hab. Panama, Volcan de Chiriqui (Champion).

One male and two females. This species differs from the allied forms in having the

prosternal sutures ungrooved in front, a character bringing it near J. aterrimus. In

the very elongate slender antenne and ungrooved prosternal sutures it approaches

Anoplischius chalcopterus ; the latter, however, has less dilated hind coxal plates. The

body above and beneath and the legs are conspicuously clothed with long cinereous

hairs.

35. Ischiodontus erythroderus. (Tab. XIV. figg. 21, ¢; 22, @, var.)

Ischiodontus erythroderus, Cand. Compt. Rend. Soc. Ent. Belg. 1878, p. lviii (Elat. Nouv. ii. p. 12)".

Elongate, moderately convex, shining ; black, the prothorax (the apical margin excepted) rufous or flavo-rufous,

the under surface and antenne black, the legs black or pitchy brown; above and beneath somewhat

thickly clothed with long hairs, which are blackish on the head and elytra and fulvo-cinereous on the

other parts of the body, the hairs along the suture and sides of the elytra sometimes fulvo-cinereous.

Head closely, moderately finely punctate, triangularly depressed in front in both sexes, the frontal carina

prominent, rounded anteriorly ; antennee extending to the middle of the elytra in the male, much shorter

in the female, the joints from the third broadly widened, becoming narrower outwards, 3 and 4 equal.

Prothorax broader than long, convex, narrowing from the base, the sides a little rounded anteriorly in the

female ; the hind angles strongly produced, divergent, incurved at the tip, carinate above; the surface

somewhat thickly and finely punctate, deeply canaliculate behind. Elytra moderately elongate, rapidly

narrowing from the base in the male, more parallel in the female; rather coarsely and deeply punctate-

striate, the interstices feebly convex, flat on the disc towards the base, somewhat closely punctured.

Beneath thickly punctured ; prosternal sutures deeply excavate in front; mesosternum separated from

the metasternum by a deep transverse suture, obliquely declivous, raised behind ; anterior process of the

metasternum convex, horizontal ; posterior coxal plates strongly, triangularly widened opposite the point

of insertion of the femora.

Var. The prothorax with a large rounded patch on the middle of the disc, extending forwards to the apex,

and the apical margin also, black.

Length 93-15, breadth 23-3? millim. (¢ 9.)

Hab. Guatemata!, Zapote, Capetillo, Duefias, Calderas, San Gerdnimo (Champion),

Tepan (Conradt).

eee cas

bie Henin =

ISCHIODONTUS. | 333

Twelve specimens of this species are before me—ten of the typical form and two of

the variety. Dr. Candéze has examined one of the typical examples and named it as

above ; but, as I should not have suspected this from his brief diagnosis and remarks, a

fresh description is given from our additional material. The variety he mentions

probably belongs to J. dalteatus. In the form of the mesosternum J. erythroderus

approaches the genus Spilus.

36. Ischiodontus melas. (Tab. XIV. fig. 25, ¢.)

Elongate, narrow, convex, subcuneiform, deep black, shining, the oral organs and legs entirely testaceous, the

antennee black; somewhat thickly clothed with long hairs, which are blackish above (except at the base

of the prothorax) and fulvo-cinereous beneath. Head rather convex, thickly and somewhat coarsely

punctate, broadly triangularly excavate in front in the male, shallowly so in the female, the frontal

carina very prominent, rounded anteriorly; antenne extending fully to the middle of the elytra in the

male, shorter in the female, the joints from the third broadly dilated and serrate, becoming narrower

outwards, 3 and 4 equal. Prothorax convex, about as long as broad, narrowing from the base and

somewhat compressed at the sides in the male, the sides a little rounded anteriorly in the female ; the

hind angles strongly produced, divergent, carinate above, slightly incurved at the tip; the surface finely,

sparsely punctate, deeply canaliculate behind. LElytra very elongate, narrowing from the base in

both sexes; moderately finely striate-punctate, the interstices sparsely and more finely punctured,

and (except on the basal declivity) flat. Beneath somewhat thickly punctured; prosternal sutures very

deeply excavate in front; mesosternum with the sides strongly raised and obliquely declivous,

separated from the metasternum by a very deep transverse suture ; posterior coxal plates strongly

triangularly dilated opposite the point of insertion of the femora.

Length 103-163, breadth 23-4 millim. (¢ 2.)

Hab. Nicaraeua (Sallé), Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui

(Champion).

Twenty-two specimens, all females but two. Allied to J. nigricornis, but differing

from that insect (and from J. anceps also) in having the upper and under surfaces deep

black, the hairs on the upper surface almost black, the thorax longer and more

attenuate, and the sides of the mesosternum more raised. The elytra are not distinctly

striate, except along the suture.

In the form of the mesosternum, /. melas and the following species, J. rufiventris, form

a transition to the genus Spilus. Both species are unknown to Dr. Candeéze.

37. Ischiodontus rufiventris.

Elongate, narrow, convex, subcuneiform, shining ; deep black, the oral organs and legs testaceous, the antenne

black; beneath, the prothorax excepted, ferruginous or rufo-testaceous ; somewhat thickly clothed with

long hairs, which are blackish above (except at the base of the prothorax) and fulvo-cinereous beneath.

Head rather convex, thickly and somewhat coarsely punctate, the front broadly triangularly excavate in

the male, shallowly so in the female, the frontal carina prominent, rounded anteriorly ; antenne

extending to the middle of the elytra in the male, shorter in the female, the joints from the third broadly

dilated and serrate, becoming narrower outwards, 3 and 4 equal. Prothorax convex, slightly broader

than long, narrowing from the base, a little rounded at the sides anteriorly in the female ; the hind angles

strongly produced, divergent, slightly incurved at the tip, carinate above; the surface finely, sparsely

punctate, deeply canaliculate behind. Hlytra moderately elongate, narrowing from the base in both

sexes; rather finely striate-punctate, the interstices sparsely and more finely punctured, and (except on

334 | SERRICORNIA.

the basal declivity) flat. Beneath sparsely punctured; prosternal sutures deeply excavate in front:

mesosternum with the sides strongly raised and obliquely declivous, separated from the metasternum by

a deep transverse suture ; posterior coxal plates angularly widened opposite the point of insertion of the

femora.

Length 94-14, breadth 23-31 millim. (¢ 9.)

Hab. Mexico, Jalapa (/ége).

Twelve examples, four of which are males. Closely allied to J. melas, but less

elongate, and with the under surface, the prothorax excepted, ferruginous. From

I. nigricornis it differs in having the hairs on the upper surface blackish (instead of

flavo-cinereous), the metasternum (as well as the abdomen) ferruginous, and the sides

of the mesosternum more raised. ‘The abdomen is more sparsely punctured than in

either of these species. The specimens described appear to be perfectly mature.

38. Ischiodontus aterrimus.

Very elongate, rather broad, subcuneiform, moderately convex, shining; above and beneath deep black, the

hind angles of the prothorax ferruginous within; the antenne and legs pitchy-black, the knees and the

upperside of the hind femora ferruginous ; the upper and under surfaces sparsely clothed with rather

long blackish hairs. Head thickly, somewhat coarsely punctate, longitudinally depressed in the middle

between the eyes and also depressed on either side in front, the frontal carina prominent, rounded ante-

riorly ; antennz not half the length of the body, the joints from the third moderately widened, becoming

narrower outwards, 3 and + equal. Prothorax broader than long, convex, narrowing from the base, a

little rounded at the sides anteriorly ; the hind angles strongly produced, divergent, carinate above ; the

surface finely, sparsely punctate, shallowly canaliculate behind. Elytra very elongate, narrowing from

the base; very finely seriate-punctate, the punctures towards the apex and suture placed in fine almost

obsolete striz ; the interstices flat, sparsely, minutely punctate. Beneath thickly and somewhat coarsely

punctate; prosternal sutures shallowly grooved in front; mesosternum with the sides raised, sub-

horizontal, somewhat abruptly declivous in front; posterior coxal plates strongly triangularly widened

opposite the point of insertion of the femora.

Length 194, breadth 43 millim. (9.)

Hab. Panama, Chiriqui (Z7roétsch).

One female specimen. Larger and broader than the corresponding sex of J. melas,

the pubescence above and beneath, and the legs, almost black, the thorax more trans-

verse, the prosternal sutures obsoletely grooved in front, the sides of the mesosternum

less raised behind, and more abruptly declivous in front. In the obsoletely grooved

prosternal sutures this insect approaches the genus Crepidius, and in having the sides of

the mesosternum raised and subhorizontal it resembles some of the species here referred

to Atractosomus, in which it would be equally well placed. The antenne are formed

very much as in the females of J. melas and its allies.

39. Ischiodontus ichthydius.

Ischiodontus ichthydius, Cand. Monogr. Elat. ii. p. 129°.

Hab. Mexico!, Cordova (Salié) ; British Honpuras, Belize (Blancaneaux); Guate-

MALA, Yzabal (Sad/é), San Juan, Panzos, and Panima in Vera Paz ( Champion); PANAMA,

Bugaba, Volcan de Chiriqui (Champion).

ISCHIODONTUS. 335

Varies in size and colour. ‘The males have the sides of the thorax much less

rounded than in the females, the sides obliquely converging from the base in some

specimens of this sex. The three examples from British Honduras are ferruginous in

colour, and less elongate, but they apparently belong to the same species.

40. Ischiodontus brevis. (Tab. XIV. figg. 23, ¢; 23a, antenna; 23 ,

genitalia, 3.)

Moderately elongate, rather broad, shining; pitchy-brown or brownish-ferruginous, the legs and antenne

ferruginous, the under surface fusco-ferruginous ; above and beneath thickly clothed with long yellowish-

cinereous hairs. Head convex, in some male specimens feebly triangularly depressed in the middle

between the eyes, closely, rather coarsely punctate; the frontal carina prominent, rounded anteriorly ;

antennz less than half the length of the body, slender, joint 3 small, slightly longer than 2. Prothorax

convex, strongly transverse, the sides gradually converging from the base, rounded anteriorly ; the hind

angles moderately produced, parallel or feebly divergent, carinate above; the usual notches on the basal

margin small or indistinct; the surface thickly, finely punctate, the punctures becoming much coarser at

the sides anteriorly, and finer and more scattered towards the base, feebly canaliculate behind.

Elytra about three times the length of the prothorax, in both sexes subparallel to the middle and

narrowing thence to the apex, the apices slightly mucronate ; finely punctate-striate, the interstices flat

and somewhat thickly punctured. Beneath closely punctured; prosternal sutures deeply excavate in

front; mesosternum declivous ; posterior coxal plates broadly triangularly widened above the point of

insertion of the femora.

Length 9-10, breadth 24-3 millim. (¢ 9.)

Hab. Mexico, Tuxtla (Sallé), Teapa (coll. Janson); GuaTEMALA, Panzos, Teleman,

Chacoj, and San Juan in Vera Paz (Champion); Panama, Bugaba, Volcan de Chiriqui

(Champion).

Numerous examples. Closely allied to J. echthydius, Cand., and occurring in the

same localities, but differing from that insect in its less elongate shape, the elytra in

both sexes relatively shorter, subparallel to the middle, and slightly mucronate at the

apex. ‘The punctuation of the thorax and of the elytral interstices is not so dense as

in J. alopex, I. deletus, and I. punctatus, Cand.

The insect is unknown to Dr. Candéze. A male from Bugaba is figured.

41. Ischiodontus rufus.

Ischiodontus rufus, Cand. Monogr. Elat. ii. p. 180°.

Hab. Mexico}, Teapa in Tabasco (coll. Janson).

There is a single male specimen of this species from Teapa in the Janson collection ;

it differs from the type (a female) in having the elytra rapidly narrowing from about

the basal third.

In this insect the humeri of the elytra are rather deeply excavate for the reception

of the hind angles of the thorax, and the fine carina on the latter is curved inwards

anteriorly (instead of being parallel with the margin), characters separating 1. rufus

336 SERRICORNIA.

from the allied forms. The posterior coxal plates are only feebly widened over the

point of insertion of the femora, and the species would be equally well placed in_

Anoplischius. :

42. Ischiodontus alopex.

Elater alopex, Faby. Syst. Eleuth. ii. p. 236'.

Ischtodontus alopex, Cand. Monogr. Elat. ii. p. 127°.

Atractodes lutescens, Germ. Zeitschr. fiir Ent. i. p. 221°.

Hab. * Mexico (coll. Candéze); Nicaragua, Chontales (Belt).—Soura AMERICA,

Colombia, Guiana, Brazil 1 2 3,

We have received three specimens of this variable and widely distributed species

from Chontales.

43. Ischiodontus debilis. (Tab. XIV. figg. 24, 3; 24a, antenna. )

Moderately elongate, narrow, subfusiform, feebly convex, slightly shining ; brownish-ferruginous, the antenne

and legs testaceous ; above and beneath thickly clothed with rather long fulvo-cinereous hairs. Head

convex, feebly depressed in the middle between the eyes, densely punctured; the frontal carina mode-

rately prominent, rounded anteriorly, and slightly reflexed ; antenne slender, not half the length of the

body, joint 3 small, very little longer than 2. Prothorax strongly transverse, slightly flattened on the

disc, the sides converging from the base; the hind angles moderately produced, very finely carinate

above, scarcely divergent, incurved at the tip; the usual basal impressions almost obsolete; the surface

finely, closely punctate, obsoletely canaliculate behind. Elytra moderately long, narrowing from the

base ; finely punctate-striate, the strie deeply impressed, the interstices feebly convex and thickly punc-

tured. Beneath closely punctured ; prosternal sutures deeply excavate in front; mesosternum declivous ;

. posterior coxal plates broadly triangularly widened opposite the point of insertion of the femora.

Length 73, breadth 2 millim. (<¢.)

Hab. Panama, Volean de Chiriqui 4000 feet (Champion).

Two specimens. Allied to I. alopex (Fabr.), but differing from it in being smaller

and narrower, and in having the hind angles of the thorax more finely carinate.

I. brevicollis, Steinh., from Colombia, is an allied form, but it is described as having

the hind angles of the thorax not carinated above.

44. Ischiodontus limbatus, (Tab. XIV. figg. 26, ¢; 26a, antenna; 264,

prosternal process.)

Moderately elongate, subfusiform, convex, shining; ferruginous or rufo-ferruginous, the elytra with a broad black

marginal stripe extending from the shoulder to a little beyond the middle, the base infuscate, the legs

and antenne testaceous ; above and beneath somewhat thickly clothed with moderately long fulvous hairs.

Head short, convex, thickly, moderately finely punctate, the frontal carina well-defined, but not visible from

above ; antenne rather short, slightly longer in the male than in the female, slender, joint 3 only a little

longer than 2, narrower and much shorter than 4. Prothorax convex, much broader than long, the sides

in both sexes rounded anteriorly and parallel behind ; the hind angles moderately produced, incurved at the

tip, not carinate above; the basal margin without the usual imp.essions; the surface sparsely and very finely

punctate, obsoletely canaliculate behind. Elytra narrowing from the base in both sexes, moderately long ;

finely punctate-striate, the interstices feebly convex and sparsely punctured. Beneath somewhat thickly

ISCHIODONTUS.—EUDACTYLUS. 307

- punctate ; prosternal sutures deeply excavate in front; mesosternum declivous, the sides feebly raised ;

_ posterior coxal plates broadly triangularly widened opposite the point of insertion of the femora.

Length 7-73, breadth 2-23 millim. (¢ @.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Many specimens. Allied to JL. ichthydius, Cand., but very much smaller and less

elongate, the sides of the elytra from the base to a little beyond the middle broadly

bordered with black. The species is not known to Dr. Candéze.

45. Ischiodontus bifasciatus. (Tab. XIV. fig. 27.)

Moderately elongate, rather convex, shining ; rufo-testaceous, the elytra with the base somewhat broadly, and

a broad transverse fascia a little beyond the middle, black, the legs and antenne testaceous; above and

beneath somewhat thickly clothed with fulvous hairs. Head convex, not depressed in front, densely

punctured; the frontal carina moderately prominent, reflexed, and strongly rounded anteriorly; eyes

finely granulated ; antenns extending very little beyond the humeri, rather slender, joint 3 small, slightly

longer than 2. Prothorax broader than long, the sides gradually converging from the base, a little

rounded anteriorly; the hind angles strongly produced, sharp, scarcely divergent, finely carinate at the

sides above; the usual notches on the basal margin small and shallow; the surface closely, very finely

punctate, smoother on the basal declivity, deeply canaliculate behind. Elytra comparatively short,

less than three times the length of the prothorax, narrowing from the base, rounded at the apex; finely

punctate-striate, the interstices feebly convex at the sides, flat on the disc, and sparsely punctured.

Beneath thickly punctured; prosternal sutures deeply excavate in front; prosternal process slightly

declivous behind the coxe, sharply angulate before the apex; mesosternum declivous and depressed ;

posterior coxal plates broadly triangularly widened towards the middle.

Length 74, breadth 2} millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Allied to J. fasciatus and JI. cruciatus, Cand., from Colombia, but

differing from both these species in having the thorax not so strongly transverse, the

suture of the elytra not infuscate between and beyond the fasciz, the elytra themselves

narrowing from the base, and the prosternal process sharply angulate before the apex.

Group EUDACTYLINI.

EUDACTYLUS.

Eudactytus, Sallé, Ann. Soc. Ent. Fr. 1854, p. 266; Candéze, Monogr. Elat. 11. p. 159.

A Tropical-American genus containing eighteen described species, two of which

inhabit Mexico or Central America; one from Nicaragua and one from the State of

Panama are now added. The large forms superficially resemble Sem/iotus.

Surface shining, sparsely pubescent ; size large.

Head and prothorax rufo-testaceous, the latter with four black spots.

Elytra flavous, with the suture broadly, and a broad submarginal stripe, black . boucardi.

Elytra testaceous, with the suture and margins broadly from a little before

the middle to the apex, black . . . soe ee ee grandini.

BIOL. CENTR.-AMER., Coleopt., Vol. ITI. Pt. L “May 1895. 9X

338 ; SERRICORNIA.

Head, prothorax, and elytra flavous, the prothorax with a broad median vitta,

and the elytra with a little more than the apical half, black . . + - + - partitus.

Surface subopaque, thickly pubescent; elytra each with five raised ivory-white

spots; sizesmall . 2. ee ee ee ee ee ee eburatus.

1. Eudactylus boucardi.

Eudactylus boucardi, Sallé, Rev. et Mag. Zool. 1878, p. 16, t. 9. figg. 5, 54°.

Hab. Mexico, Chinantla in Oaxaca (Loucard ').

2. Eudactylus grandini. (Tab. XV. fig. 1.)

Eudactylus grandinii, Candéze, Elat. Nouv. i. p. 23 (1864) *.

Hab. Mexico!; Ntcaracua, Chontales (£. IM. Janson).

The type of this species is contained in the Janson collection, and a second example

was found by the late E. M. Janson at Chontales. This insect is closely allied to

E. boucardi, but differs from it in having the sutural and marginal stripes of the elytra

obliterated before the middle, the interstices more sparsely punctured, and the apices

acute.

The upper surface is sparsely clothed with short fine decumbent pubescence, this

being rubbed off in the type. £. castus, Jans., from Ecuador, is another allied form.

8. Eudactylus partitus. (Tab. XV. fig. 5.)

Elongate, broad, shining ; flavous, the eyes, a very broad median vitta on the prothorax, narrowing a little

behind, the scutellum, the cavity surrounding it, and rather more than the apical half of the elytra, deep

black; the antenne black, with the tip of the apical joint ferruginous ; the legs black, with the knees,

the coxe, and the tips of the tarsi more or less testaceous; the under surface black, the propleure in

great part, and the ventral segments at the sides, flavous; the surface sparsely clothed with short fine

pubescence, which partakes of the ground-colour. Head thickly, moderately finely punctate, triangularly

flattened in front, the frontal carina prominent, rounded anteriorly ; antenne stout, short, joint 3 a little

longer than 2, 4 about three times the length of 3. Prothorax longer than broad, longitudinally convex,

a little rounded at the sides in front; the hind angles greatly produced, strongly divergent, carinate

above; the surface thickly, moderately finely punctate, and with a strongly raised, smooth, stout, oblong

elevation at the middle of the basal declivity, preceded by a faint median groove. Scutellum rather

coarsely punctured. Elytra broad, about two and one-half times the length of the prothorax, explanate

at the sides a little below the base, and rapidly narrowing thence to the apex, the base obliquely cut off

on either side, the apices sharp and dehiscent; finely punctate-striate, the stria very deeply impressed

beyond the middle ; the interstices strongly convex, becoming flatter on the disc towards the base, thickly,

very finely punctate. Beneath closely and very finely, the prosternum and propleure sparsely and more

coarsely, punctate.

Length 174, breadth 53 millim.

Hab. Nicaragua (E. M. Janson).

One specimen in the Janson collection, probably a female. Allied to E. dimidiatus,

Cand., from Choco, Colombia; but much larger, the front not black, the thorax longer

and more parallel, the elytra with more than the apical half black, the interstices not

rugosely punctured.

EU DACTYLUS.—ACHRESTUS. 339

4. Kudactylus eburatus. (Tab. XV. fig. 3.)

Moderately elongate, narrow, subopaque, the elytra slightly shining; the head piceous or reddish-brown, pale

testaceous in front; the prothorax piceous or pitchy-black, with the hind angles entirely testaceous ;

the scutellum testaceous; the elytra piceous or black, with the base on either side of the scutellum, and a

large oblique patch extending inwards from a little below the humeri to the third stria, testaceous, each

elytron with five raised ivory-white spots—three, small, placed longitudinally on the dise (one at the base

one a little below it, and one slightly before the middle), one, larger, near the margin, a little beyond

the middle, and one, oblong, on the outer part of the disc near the apex,—the anterior third of the

epipleure also ivory-white ; the antenne pitchy-black, with the four or five basal joints pale testaceous ;

the legs entirely whitish ; the under surface varying in colour from testaceous to brownish-piceous ; the

head, prothorax, and the body beneath clothed with short, fine, decumbent, cinereous pubescence, the

prothorax with five fuscous marks (a broad, elongate patch on either side of the disc behind, a small spot

in front of it, and a large spot on the anterior part of the disc in the middle); the elytra with the suture

rather broadly, the sides and apex, and also the light-coloured parts, clothed with pallid pubescence, the

rest of their surface fusco-pubescent. Head densely, finely punctate, sulcate in the middle between the

eyes and transversely depressed in front; the frontal carina moderately prominent, flexed downwards in

the middle, rounded anteriorly ; antennz extending very little beyond the humeri, slightly shorter in the

female; joints 2 and 3 short, equal, 4-11 dilated and serrate, becoming wider outwards, 4 as long as 2

and 3 united, much longer than 5, 7-10 about as broad as long. Prothorax much longer than broad,

convex, the sides feebly rounded and slightly converging anteriorly and sinuate behind; the hind angles

strongly produced, divergent, acute, very finely and obsoletely carinate externally ; the surface densely,

finely punctate, shallowly canaliculate down the middle, the channel replaced at the base by a short fine

carina. Elytra moderately elongate, gradually narrowing from about the basal third, the apices finely

mucronate and slightly dehiscent ; deeply and rather coarsely punctate-striate, the strie interrupted by the

raised ivory-white spots, the latter being very finely punctured ; the interstices convex, closely and very

finely punctate. Beneath thickly, very finely punctate, the punctures on the prosternum and propleure

coarser than on the other parts. Posterior coxal plates narrow, very gradually widening inwards.

Length 74-73, breadth 2 millim. (¢3 9.)

Hab. Panama, Bugaba (Champion).

Four specimens. Allied to EL. alboguttatus, Cand., from Cayenne, but narrower and

more elongate, and very differently coloured. ‘The elytra have five raised ivory-white

spots on each elytron, a character not possessed by any other Elaterid known to me,

These specimens were found singly, at long intervals, on the borders of the forest,

sunning themselves upon leaves.

ACHRESTUS.

Anepsius, Candéze, Monogr. Elat. ii. p. 156 (1859) (nec Leconte).

Achrestus, Candeze, Col. Hefte, v. p. 122 (1869).

This genus contains five described species, all from Tropical South America, and

others, unnamed as yet, exist in collections. The two from Nicaragua now added

differ from those described by Candéze in having the antenne strongly flabellate in the

male sex.

Black, the prothorax with a broad submarginal vitta of fulvous hairs, extending

to the head and to the base of the elytra; prothorax as long as broad, opaque,

not foveate at the sides . . . . . . . ee ee eee ee fuelvovittatus.

2X2

340 SERRICORNTA.

Fulvous, the head in great part, the prothorax with two vitte on the disc, the

elytra with an interrupted ante-median fascia, the apical two-fifths, and the

suture anteriorly, black ; prothorax transverse, shining, foveate at the sides . venusius.

1. Achrestus fulvovittatus. (Tab. XV. fig. 2, 3.)

Elongate, parallel, moderately broad, opaque; deep black, the hind angles of the prothorax, and an elongate

patch on the outer part of the disc of the elytra at the base, extending to the humeri and inwards to

opposite the scutellum, rufous ; the antenne, legs, and under surface black, the knees and tarsal claws

rufous; above densely clothed with rather long, coarse hairs, which are erect on the head and on the

base of the elytra and decumbent on the rest of the upper surface, the hairs fulvous along a broad stripe

on either side of the disc of the prothorax, extending from the hind angles to the apex, and continued on

to the head, and on the rufous patch at the base of the elytra, those on the other parts brownish-black ;

the under surface shining, sparsely cinereo-pubescent. Head very densely, finely punctate, the punctures

becoming much coarser towards the apex, deeply triangularly depressed in front ; the frontal carina very

prominent, rounded anteriorly ; antenne densely punctured and pubescent, about one-half the length of

the body, strongly flabellate from the third joint, the rami broadly flattened and rapidly increasing in

length outwards. Prothorax as long as broad, convex, the sides rounded from the middle forwards and

sinuate behind; the hind angles strongly produced, divergent, blunt and slightly incurved at the tip,

carinate above; the surface very densely and finely punctate throughout, deeply longitudinally sulcate in

the middle behind. Elytra about two and two-thirds the length of the prothorax, parallel to beyond the

middle, flattened on the disc, somewhat abruptly declivous at the base, bluntly rounded at the apex;

coarsely and deeply punctate-striate, the interstices convex, densely, finely punctate. Beneath somewhat

thickly, moderately tinely punctate, the prosternum and propleure very sparsely punctured.

Length 11, breadth 3 millim. (¢.)

Hab. Nicaragua, Chontales (£. MW. Janson).

One male example. Allied to A. lyctdioides, Cand., from Cayenne, but differing

from that species in its much longer thorax, and in the strongly flabellate antennee in

the male.

2. Achrestus venustus. (Tab. XV. fig. 4, 3.)

Elongate, parallel, rather narrow, shining; the head black, fulvous in the middle in front; the prothorax

fulvous, with two broad, narrowly separated, black vittee on the disc, which are dilated on the outer side

before the middle and narrowed behind ; the scutellum piceous ; the elytra fulvous, with the apical two-

fifths, and the suture rather broadly to a little beyond the basal third, violaceous-black, and a broad,

oblong, subquadrate patch on the outer part of the dise before the middle piceous; the antenne and legs

black, the latter with the trochanters and tarsal claws rufo-testaceous; the under surface in great part

black, the prosternum and the propleurz, a broad space along the middle of the latter excepted, flavo-

testaceous ; above thickly clothed with long, coarse, semi-erect hairs, which partake of the ground-colour,

beneath sparsely clothed with yellowish-cinereous hairs. Head sparsely, coarsely, irregularly punctate,

deeply transversely depressed in front ; the frontal carina very prominent, subtruncate anteriorly ; antenne

more than half the length of the body, strongly flabellate from the third joint, the rami broadly flattened

and gradually increasing in length. Prothorax transverse ; the sides slightly flexuous, rounded in front ;

the hind angles strongly produced, moderately divergent, blunt and slightly incurved at the tip, finely

carinate above; the surface sparsely, irregularly punctate, a broad space along the centre almost smooth,

deeply foveate at the sides before the middle, and with a median channel, which becomes very deep and

broad behind. Elytra about three and one-half times the length of the prothorax, parallel for three-fourths

of their length, broadly rounded at the apex, a little flattened on the disc; coarsely and very deeply

punctate-striate ; the interstices narrow, strongly convex, thickly, minutely punctate. Beneath sparsely,

finely punctate, the propleure with a few widely scattered punctures only.

Length 11, breadth 23 millim. (¢.)

ACHRESTUS.—MONOCREPIDIUS. 341

Hab. Nicaraeva, Chontales (Belt).

One male specimen. Allied to A. phyllocerus, Cand., from Venezuela, but narrower,

the head and thorax much more sparsely punctured and more shining, the elytral

interstices narrower and more convex, the antenne flabellate in the male. The

markings on the anterior half of the elytra form an interrupted ante-median fascia.

A more nearly allied undescribed form from the Amazons is contained in the Janson

collection.

Group MONOCREPIDIINI.

| MONOCREPIDIUS.

Monocrepidius, Eschscholtz, in Thon’s Archiv, ii. 1, p. 81 (1829); Candaze, Monogr. Elat. ii.

p. 187.

Conoderus, Eschscholtz, loc. cit

A genus containing upwards of 200 described species, more than half of which are

American. In the typical forms, WZ. lividus, M. apiatus, &c., the fourth tarsal joint is

broadly lamellate beneath; but in some of the species the lamella is shorter and

narrower, and in the small forms placed at the end of the genus (MZ. pictus, MW. bellus,

&c.) it is reduced to a narrow filament not wider than the apical joint. These small

species have entirely the facies of Drasterius, of the group Elaterini, from which they

differ only in the lamellate fourth tarsal joint. The outer prosternal suture is well

defined in U/. pictus and M. bellus, indistinct in our other species. The genitalia of

the males afford good differential characters in some of the closely allied forms. In

two species, W/. apiatus and I. pilatet, the terminal dorsal segment is deeply sulcate

down the middle.

Thirty-two species are here enumerated from within our limits, twelve of which are

described as new.

A. Fourth tarsal joint strongly lamellate beneath, the lamella visible from

above.

a. Elytra abruptly emarginate at the apex, the sutural and outer angles

dentiform ; antenne with joints 2 and 3 equalin length . . . . . Species 1, 2.

b. Elytra more feebly emarginate at the apex; antenne with joint 3 nearly

twice as long as 2.

a’. Apex of the fifth ventral segment rounded; outer apical angle of the

elytra obtuse 2... 1 ew ee ee ee ee . . Species 3.

6’. Apex of the fifth ventral segment more or less mucronate at the middle ;

outer apical angle of the elytra distinct.

a", Punctuation of the prothorax moderately close, the punctures unequal

insize . . an . - . Species 4,

6", Punctuation of the prothorax dense, the punctures very y fine and equal

Insiz@ 2 1 ee we ee we ee we ew we ee) «Species 5.

342 SERRICORNIA.

c. Elytra obsoletely emarginate or rounded at the apex:

c’. Antenne with joint 3 nearly twice as long as 2.

c", Hind angles of the prothorax carinate above.

a, Punctures of the prothorax unequal in size.

a‘, Elytra rather coarsely punctate-striate .

6‘. Elytra finely punctate-striate .

6", Punctures of the prothorax equal in size . oe .

a", Hind angles of the prothorax not carinate above; prothorax narrow

and subcylindrical . toe .

d', Antenne with joint 3 not or very little longer than 2.

e". Hind angles of the prothorax carinate above and with a sharp carina

extending along the basal margin inwards . .

f". Hind angles of the prothorax not distinctly carinate along the basal

margin.

é, Supra-lateral carina almost parallel with the margin.

c’.. Punctures of the prothorax subequal in size.

a’. Punctures rather coarse .

6°’. Punctures very fine re

d‘, Punctures of the prothorax distinctly unequal in size

d'’’, Supra-lateral carina not parallel with the margin anteriorly.

e‘. Punctures of the prothorax very fine and equal in size, or with

slightly coarser ones intermixed .

jf’. Punctures of the prothorax distinctly unequal in size .

B. Fourth tarsal joint with a long and very slender lamella beneath, the lamella

not visible from above; antenne with joints 2 and 3 short, subequal; size

small, 3-6 millim.

d. The outer prosternal suture well defined.

e', Prothorax tuberculate in the middle before the base

f'. Prothorax not tuberculate in the middle before the base

e. The outer prosternal suture indistinct.

g'. Punctures of the prothorax unequal in size .

h’. Punctures of the prothorax subequal in size .

Species 6.

Species 7-11.

Species 12.

Species 13.

Species 14-20.

Species 21.

Species 22,

Species 23.

Species 24-26.

Species 27.

Species 28.

Species 29.

Species 30.

Species 31, 32.

1. Monocrepidius rodriguezi. (Tab. XV. figg. 6, ¢; 6a, antenna.)

Monocrepidius rodriguezi, Cand. Elat. Nouv. iii. p. 47.

Hab. Mexico, Cordova, 'Tuxtla (Sallé), Jalapa, Oaxaca (Hoge); Brittsn Honpuras

(Blancaneaux); GUATEMALA}; Nicaragua, Chontales (Belt) ; Costa Rica (Van Patten),

Volcan de Irazu (Logers) ; Panawta, Volean de Chiriqui (Champion).

Var. The elytra with a broad marginal stripe, interrupted beyond the middle, obscure testaceous.

Monocrepidius decimus, var., Cand. Monogr. Elat. ii. p. 206.

Hab. Mexico (Klingelhéffer *), Playa Vicente, Tuxtla, Tepansacualco (Sal/é), Jalapa,

Cerro de Plumas, Tapachula (//ége); Britisn Honpuras, R. Hondo (Blancaneaua) ;

MONOCREPIDIUS, 343

GuateMa.a (coll. Janson); Nicaragua, Chontales (#. M. Janson); Panama, Volcan de

Chiriqui. (Champion).

This is a common insect in Central America. MV. rodriguezi is closely allied to

M decimus, but has longer and more attenuate elytra. In both species (the types of

which I have examined) the elytra are emarginate at the apex, with the outer apical

angle acutely produced. The antenne are a good deal longer in the male than in the

female, the insect in this respect approaching Jf. longicornis, Cand., from Colombia *.

A male from Chiriqui is figured.

2. Monocrepidius sinaloz.

Monocrepidius sinaloe, Cand. Ann. Soc. Ent. Belg. 1889, p. 91 (Elat. Nouv. iv. p. 25) *.

Hab. Mexico, Presidio de Mazatlan (forrer), Sinaloa !.

Two specimens, agreeing with one communicated by Dr. Candéze. MW. sinalow

closely resembles the pallid form of MW. decitmus, Cand., but differs from it in its more

parallel shape.

3. Monocrepidius depressipennis.

Monocrepidius depressipennis, Cand. Monogr. Elat. ii. p. 252°.

Hab. Mexico! (Sal/é).

A single abraded specimen of this species is contained in the Sallé collection ; it has

the apex of the elytra conjointly emarginate, with the sutural angle acute and the

outer angle rounded. |

4. Monocrepidius flavangulus. (Tab. XV. figg. 7, var. vittatus, ¢; Ta,

genitalia, ¢ .)

Monocrepidius flavangulus, Cand. Monogr. Elat. p. 250°.

Hab. Mexico}, Cordova, Tuxtla, Oaxaca (Sallé), Playa Vicente, Jalapa (Hoge),

Orizaba (coll. Janson), Atoyac in Vera Cruz (H. H. Smith); British Honpuras,

R. Hondo (Blancaneaux) ; NIcaraava, Chontales (Belt).

Var. The elytra with a broad submarginal vitta ferrugineo-testaceous.

Monocrepidius vittatus, Cand. loc. cit. p. 251°.

Hab. Mexico2, Puebla, Cordova, Toxpam (Sallé), Playa Vicente, Jalapa, Oaxaca

(Hoge), Atoyac in Vera Cruz (H. H. Smith), San Francisco in Vera Cruz (Wickham) ;

GUATEMALA, San Gerénimo (Champion). |

We have received many specimens of both forms of this species; the typical form

* M,. angulatus, Steinh., from Colombia, the type of which is before me, is a female of VM. longicornis.

344 SERRICORNIA.

occurs in company with the variety at numerous localities. M. flavangulus may be

known from all its allies by having the fifth ventral segment mucronate in the middle

at the apex; the mucro is variable in length, it being short in some specimens of the

var. vittatus. The elytra are cbliquely truncate at the apex, with the sutural and outer

angles obsoletely mucronate. We figure a male of the var. vittatus, from Jalapa.

5. Monocrepidius pruinosus.

Elongate, convex, rather narrow, pitchy-black, the hind angles of the prothorax obscure testaceous, thickly

clothed with very short, fine, greyish pubescence, the antenne® and palpi rufo-testaceous, the legs flavo-

testaceous. Head thickly, finely punctate, foveate on either side before the eyes, slightly declivous in

front, the frontal carina broadly truncate ; antenne nearly half the length of the body, joint 3 about

twice as long as 2, the two together slightly longer than 4. Prothorax considerably longer than broad,

wider at the middle than at the base; the sides moderately rounded, sinuate behind, and converging at

the apex ; the hind angles strongly produced, slightly divergent, carinate at the sides above, and with a

very short, faint, oblique carina at the tip; the surface densely, finely, uniformly punctate, and obsoletely

canaliculate down the middle. Elytra a little more than twice the length of the prothorax, and equalling

it in width, parallel to the middle and rapidly narrowing thence to the apex, the apices feebly, obliquely

emarginate ; deeply and rather coarsely punctate-striate, the interstices convex and finely rugulose. Fifth

ventral segment obsoletely mucronate in the middle at the apex. Fourth tarsal joint rather broadly

lamellate beneath.

Length 103, breadth 2% millim.

Hab. Mexico, Rio Papagaio in Guerrero (H. H. Smith).

One specimen, apparently a female. Allied to M. flavangulus ; but much smaller

and narrower, the elytra less elongate and more deeply punctate-striate, the thorax

more rounded at the sides, the fifth ventral segment obsoletely mucronate. ‘The

pubescence is very short.

6. Monocrepidius lividus. (Tab. XV. fig. 8, genitalia, ¢ .)

Elater lividus, De Geer, Mém. des Ins. iv. p. 162, t. 18. fig. 4 (1774) *.

Monocrepidius lividus, Lec. Trans. Am. Phil. Soc. x. p. 482°; Cand. Monogr. Elat. ii. p. 244°;

Fleut. & Sallé, Ann. Soc. Ent. Fr. 1889, p. 411 *.

Elater castanipes, Herbst, Kifer, x. p. 23, t. 160. fig. 5°.

Elater elongatus, Palis. de Beauv. Ins. Afr. et Amér. p. 78, t. 8. fig. 4°.

Monocrepidius elongatus, Chevr. Ann. Soc. Ent. Fr. 1852, p. 630°.

Elater lobatus, Say, Journ. Acad. Phil. iii. p. 175°; Trans. Am. Phil. Soc. vi. p. 174°; Complete

Writings, ii. pp. 114, 610”.

Monocrepidius lobatus, Germ. Zeitschr. fiir Ent.i. p. 228".

? Elater flavipes, Oliv. Ent. ii. no. 31, p. 30, t. 2. fig. 17”.

Hab. Norta America® 1! 12, Pennsylvania! §, Middle and Southern States? 3,

Western States §.—Mexico 3, Etla, Cordova, Oaxaca (Sallé), Jalapa (Hoge, M. Trujillo),

Orizaba (coll. Janson).—ANTILLES *, San Domingo °, Guadeloupe 4.

Sent in abundance by Herr Hoge from Jalapa. ‘The antenne are a little more

elongate in the males than in the females.

MONOCREPIDIUS. 345

7. Monocrepidius rubidus. (Tab. XV. figg. 9,4; 94, genitalia, ¢.)

Hlongate, shining, ferruginous, or reddish-brown, the legs testaceous; thickly clothed with yellowish-cinereous

hairs. Head thickly, finely punctate, feebly sulcate between the eyes, declivous in front, the frontal carina

broadly truncate and moderately prominent; antenne nearly half the length of the body in the male,

only reaching the base of the elytra in the female, joint 3 nearly twice as long as 2, the two together

slightly longer than 4. Prothorax longer than broad, gradually narrowing from the base, with the sides

feebly sinuate behind and slightly rounded in front in the male, broader and with the sides strongly

rounded in the female; the hind angles greatly produced, strongly divergent, carinate above at the sides,

and with a short, oblique carina at the apex; the surface rather sparsely, finely punctate, with scattered

intermixed slightly coarser punctures, obsoletely canaliculate down the middle, the channel becoming

deep behind. Elytra elongate, wider than the prothorax in the male, flattened on the disc, parallel to the ~

middle and rapidly narrowing thence to the apex, the apices conjointly rounded; deeply and moderately

finely punctate-striate; the interstices almost flat, very sparsely punctate. Beneath closely and finely

punctate, with scattered intermixed coarser punctures, the prosternum more coarsely and much more

sparsely punctured. Posterior coxal plates very broadly widened to near the middle, abruptly and obliquely

narrowing outwards. Fourth tarsal joint rather broadly lamellate beneath.

Length 11-14, breadth 3-4 millim. (¢ 2.)

Hab. Mexico, Ventanas in Durango (Lfége).

Numerous examples of both sexes. Closely allied to MZ. parallelus, Cand., but

differing from it in its ferruginous colour and less parallel shape; the thorax with the

fine interstitial punctuation more diffuse, the other punctures not so coarse; the elytra

flattened on the disc, narrowing from about the middle. From UM. lividus, De Geer, it

may be known by the more finely punctate-striate elytra, and the very differently formed

genitalia of the male. The short carina within the apex of the hind angles of the

thorax is sometimes indistinct.

8. Monocrepidius tarsalis.

Monocrepidius tarsalis, Cand. Monogr. Elat. u. p. 250°.

Hab. Mexico! (coll. Janson), Omilteme in Guerrero (H. H. Smith), Jalapa (Hoge),

Las Peras and Juquila (Sallé).

I have seen twelve specimens of this species; some of them are reddish-brown or

castaneous, and three have the elytra castaneous, with the suture broadly infuscate.

The males have the antenne a little longer than the females. In the very broadly

lamellate fourth tarsal joint the insect resembles M/. livedus.

9. Monocrepidius parallelus. (Tab XV. figg. 10,4; 104, genitalia, ¢ .)

Monocrepidius parallelus, Cand. Monogr. Elat. ii. p. 246°.

Monocrepidius canus, Sturm, in litt.

Hab. Mexico! (Sallé, ex coll. Sturm), Santa Clara in Chihuahua, Chilpancingo in

Guerrero, Tacambaro in Michoacan (Hége), Puebla, Guanajuato, Cosamaloapam (Sa//é),

Cuernavaca in Morelos (. H. Smith).

Sent in plenty by Mr. H. H. Smith from Cuernavaca. The males have longer

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1895. oY

346 SERRICORNIA.

antenne and a narrower and more parallel thorax than the females. In some

specimens the finer interstitial punctuation of the thorax is a little coarser and closer

than in others. A specimen (<¢) of a Monocrepidius sent me by Mr. Wickham, from

Arizona, probably belongs to this species. We figure a male of M. parallelus from

Guanajuato.

10. Monocrepidius annulicornis.

Elongate, rather narrow, moderately convex ; pitchy-brown, the hind angles of the prothorax testaceous, the

elytra pitchy-black ; the antenne piceous, with the apical three joints and the apex of each of the others

testaceous, the oral organ flavous, the legs testaceous; above and beneath thickly clothed with short,

fine, cinereous hairs. Head thickly, finely punctate, declivous in front, the frontal carina broadly

truncate; antenne slender, not half the length of the body, joint 3 nearly twice as long as 2, the two

together longer than 4. Prothorax considerably longer than broad, a little narrowed in front, the sides

slightly rounded from the middle forwards and feebly sinuate behind; the hind angles strongly produced,

slightly divergent, sharply carinate at the sides above and with a sharp oblique carina extending from the

apex inwards; the surface closely, finely punctate, with indications of a short median groove before the

base. Llytra about two and one-fourth times the length of the prothorax, subparallel in their basal half,

and rapidly narrowing thence to the apex, the apices conjointly rounded ; deeply punctate-striate, the

interstices feebly convex throughout and somewhat thickly punctured. Beneath densely, finely, uniformly

punctate. Fourth tarsal joint strongly lamellate beneath. Fifth ventral segment with a very short

smooth line in the middle at the apex.

Length 107, breadth 2 millim.

Hab. Mexico, Cuernavaca (Sallé).

One specimen, probably a male. Closely allied to M. pruinosus, but differing from

it in the sharply bicarinate hind angles of the thorax, the partly infuscate antenne, the

longer pubescence, and the more coarsely punctured elytral striz. Smaller and less

elongate than IM. flavangulus, the elytra rounded at the apex, the fifth ventral segment

without distinct mucro.

11. Monocrepidius albinus.

Monocrepidius albinus, Cand. Monogr. Elat. 11. p. 246’.

Hab. Mexico (coll. Janson, ex Laferté), Vera Cruz (Sallé +).

There are two specimens of this species in the Sallé collection, and I have found a

single example (¢ ) of it mixed with the series of VW. lividus in the Janson collection.

The antenne are short in both sexes.

12. Monocrepidius athoides.

3. Monocrepidius athoides, Lec. New Sp. Col. p. 84 (1863) '.

?. Monocrepidius mutuus, Horn, Trans. Am. Ent. Soe. iii. p. 312 (1871) *.

Hab. Norta America, Texas!, Arizona 2.—Mexico (coll. Janson, ex Candéze), Puente

de Ixtla in Morelos, Mescala in Guerrero (H. H. Smith), Ventanas in Durango, Iguala

in Guerrero, Cuernavaca, Jalapa (Hége), Vera Cruz (Sallé), San Francisco in Vera Cruz

(Wickham), Yucatan (coll. Janson), Temax in North Yucatan (Gaumer).

MONOCREPIDIUS. 347

The numerous examples from the above Mexican localities agree well with a specimen

of M. athoides from Arizona, communicated by Dr. Horn; they vary greatly in size—

from 10-14 millim. in length, and from 24-4 millim. in width. They have the antenne

rather short’ in both sexes; the thorax convex, closely, uniformly punctate, and with

the hind angles bicarinate; the elytra rather deeply punctate-striate, the interstices

somewhat convex, and thickly, subrugosely punctate; the fourth tarsal joint narrowly

lamellate beneath. The two specimens in the Janson collection from that of Candéze

are labelled W. parallelus.

13. Monocrepidius angusticollis. (‘Tab. XV. fig. 11,2.)

Very elongate, depressed, slightly shining; brown or reddish-brown, paler beneath, the hind angles of the

prothorax and the antenne ferrugineo-testaceous, the legs testaceous; clothed with fine yellowish-

cinereous hairs. Head thickly, finely punctate, declivous in front; the frontal carina broadly subtruncate

and moderately prominent; antennew slender, about reaching the basal fourth of the elytra, joint 3 nearly

twice as long as 2, the two together slightly longer than 4. Prothorax narrow, subparallel, about one-

fourth longer than wide, feebly longitudinally convex; the hind angles acute, narrow, greatly produced,

abruptly divergent, slightly upturned, not carinate; the surface thickly, finely punctate, and with a

smooth raised median line towards the base. Elytra nearly four times the length of, and one-half wider

than, the prothorax, depressed, the sides subparallel to the middle, and very gradually converging thence

to the apex, the apices conjointly rounded; finely and rather sharply punctate-striate, the interstices flat,

feebly transversely rugulose. Beneath closely and finely, the prosternum more coarsely and sparsely,

punctate. Posterior coxal plates very broadly dilated to near the middle, abruptly and obliquely

narrowing outwards. Fourth tarsal joint with a short lamella beneath.

Length 11-11}, breadth 3 millim. (<¢.)

Hab. Mexico, Ciudad in Durango 8100 feet (Forrer).

Two male examples. This species is perhaps nearest allied to . parallelus; it

_ differs from all the allied forms in its very narrow, subparallel thorax, the hind angles

of which are long, slender, abruptly divaricate, and without distinct carina; the elytra

are depressed, very little narrower at the apex than at the base; the penultimate joint

of the tarsi is feebly lamellate beneath.

14. Monocrepidius apiatus.

Monocrepidius apiatus, Er. Archiv fiir Naturg. xiii. 1, p. 78°; Cand. Monogr. Elat. 11. p. 228, t. 4.

fig. 3°.

Hab. Panama, Bugaba in Chiriqui (Champion).—Soutn America? to Peru? ?.

Six specimens. This species agrees with M. pilatei in having the terminal dorsal

segment (the apex only of which is usually visible) sharply, longitudinally sulcate down

the middle in both sexes. In the closely allied MZ. nocturnus and M. notatus there is

no trace of this groove.

2X2

348 SERRICORNIA.

15. Monocrepidius pilatei.

Monocrepidius pilati, Cand. Monogr. Elat. ii. p. 224, t. 4. figg. 4, 4.a-e ‘

Hab. Mexico, Guanajuato (Sallé), Orizaba (coll. Janson), Yucatan! (Pilate, Sallé) ;

GuaTEMALA, San Juan in Vera Paz (Champion); Nicaragua, Chontales (£. M . Janson).

16. Monocrepidius nocturnus. (Tab. XV. fig. 12, ¢.)

Monocrepidius nocturnus, Cand. Monogr. Elat. ii. p. 222°.

Hab. Mexico, Cordova (Sallé1); Guaremata, Chiacam and Senahu in Vera Paz

(Champion), Capetillo (Rodriguez).

A male from Chiacam is figured.

17. Monocrepidius probus.

Monocrepidius probus, Cand. Elat. Nouv. ii. p. 50°.

Hab. Guatemata!, Capetillo (Champion).

Three specimens, agreeing with the type, communicated by Dr. Candéze. It has the

third joint only a little longer than the second; and the species is best placed in his

second group, near nocturnus. |

18. Monocrepidius notatus. (Tab. XV. fig. 13,6.)

Moderately elongate, broad, rather convex, finely pubescent; ferruginous or testaceous; the head usually

infuscate; the prothorax with a broad black or pitchy-brown median vitta, which in one specimen is

divided down the middle by a rufo-castaneous stripe; the elytra with a very large, broad, common subquad-

rate patch at the base, an angulate post-median fascia, and an ante-apical patch (sometimes obsolete), these

markings connected along the suture, black or piceous, or obscure castaneous, bordered externally with

black; the antenne and legs testaceous, the under surface in great part piceous or pitchy-brown. Head

coarsely, closely punctate, depressed in the middle in front, the frontal carina truncate and moderately

prominent; antenne reaching a little beyond the base of the elytra in the female, longer in the male, joints

2 and 3 very short, subequal. Prothorax a little broader than long, slightly narrowed in front, convex,

the sides rounded from the middle forwards and feebly sinuate behind; the hind angles greatly produced,

slightly divergent, sharply carinate at the sides above, and with a carina extending from the apex

along the basal margin of the prothorax; the surface closely, rather coarsely punctate, and obsoletely

canaliculate down the middle. Elytra barely two and one-half times the length of the prothorax,

narrowing in both sexes from a little below the base, the apices rounded; rather deeply punctate-striate,

the punctures coarse at the sides, becoming finer towards the suture; the interstices convex at the sides

and apex, flatter on the disc, thickly, finely punctate. Beneath closely, uniformly punctate. Fourth

tarsal joint strongly lamellate beneath.

Length 114-123, breadth 33-47 millim. (d @.)

Hab. Panama, Bugaba (Champion).

Var. The prothorax with a piceous stripe on either side of the broad median vitta, not extending to the

base or apex; the supra-marginal carina of the hind angles not extending so far forwards, and not

parallel with the margin anteriorly, the margins themselves subparallel behind. (@.)

Hab. Panama, Bugaba (Chanvpion).

Five specimens of the typical form, and one of the variety; the latter is probably

MONOCREPIDIUS. 349

distinct, but on a single specimen it is inadvisable to name it. Closely allied to

M. nocturnus, Cand., but with the antenne more elongate in the male, the hind

angles of the thorax only feebly divergent, the elytra differently marked, and with

the interstices more convex. In the coloration of the elytra M/. notatus somewhat

resembles MW. repandus, Cand., from Bogota, but that insect has the disc of the thorax

much more sparsely punctured.

19. Monocrepidius belti. (Tab. XV. fig. 16, ¢.)

Moderately elongate, broad, rather convex, finely pubescent ; pitchy-black, the head obscure rufous in front,

the prothorax with the hind angles testaceous; the elytra ferrugineo-testaceous, with a very large,

common, subquadrate patch at the base, widening forwards, an angulate post-median fascia, and an ante-

apical patch, these markings connected along the suture, pitchy-black ; the antennz, legs, and epipleurse

testaceous. Head closely, rather coarsely punctate, the frontal carina moderately prominent ; antenne

short, not reaching as far as the hind angles of the prothorax, joint 3 slightly longer than 2. Prothorax

broader than long, narrowed in front, the sides rounded anteriorly and sinuate behind; the hind angles

greatly produced, slightly divergent, sharply carinate at the sides above, and with a carina extending

from the apex along the basal margin of the prothorax ; the surface closely, rather coarsely punctate, and

feebly canaliculate down the middle behind. Elytra moderately long, a little rounded at the sides,

narrowing from about the basal third, the apices rounded; punctate-striate, the punctures fine on the

disc, coarse at the sides; the interstices flat on the disc, convex at the sides, thickly, finely punctate.

Fourth tarsal joint lamellate beneath.

Length 113, breadth 3? millim. (<¢.)

Hab. Nicaracva, Chontales (Belt).

This insect so closely resembles the female of M/. notatus that I had at first placed it

with that species. Compared with the male of M/. notatus, it may be at once known

by the much shorter antenne, and by its relatively broader and less elongate shape,

the thorax pitchy-black, the hind angles excepted.

20. Monocrepidius rugicollis.

Elongate, broad, convex, subopaque ; pitchy-brown, the hind angles of the prothorax, and the epipleure, and

in one specimen the sides of the elytra also indeterminately, ferruginous; the antenne and palpi

ferrugineo-testaceous, the legs flavous; above and beneath clothed with short, fine, fulvous or greyish

hairs. Head very coarsely, deeply, closely punctate, depressed in the middle in front, the frontal carina

subtruncate and moderately prominent; antenne short, about reaching the base of the elytra, joint 3

short, a little longer than 2, the two together scarcely as long as 4. Prothorax convex, fully as long

as broad, slightly narrowed in front, the sides rounded from the middle forwards and sinuate behind,

the dise somewhat abruptly declivous before the base; the hind angles greatly produced, divergent,

carinate at the sides above, and with a carina extending from the tip along the basal margin of the

prothorax ; the surface densely, coarsely, uniformly punctate, and canaliculate behind. Elytra barely two

and one-half times the length of the prothorax, narrowing from about the basal third, rounded at the

apex, the apices slightly divergent; deeply and rather coarsely punctate-striate, the punctures distinct

throughout; the interstices convex at the sides and apex, almost flat on the disc towards the base, thickly,

finely punctate. Fourth tarsal joint strongly lamellate beneath.

Length 12-13, breadth 33-4 millim. ( 9.)

Hab. Guatemata, Cerro Zunil, Pantaleon (Champion).

Two specimens, both from the Pacific slope. Closely allied to MZ. probus, Cand.; but

390 SERRICORNIA.

differing from it in having the head and thorax much more coarsely punctured, the

thorax fully as long as broad (not. so long as broad in either sex of M. probus), and

the elytra more coarsely punctate-striate, with the interstices more convex. The third

joint of the antenne is very little longer than the second.

21. Monocrepidius posticus.

Elater posticus, Eschsch. Entomograph. i. p. 76 (1822) *.

Monocrepidius posticus, Cand. Monogr. Elat. ii. p. 256°.

Var. a. The prothorax with a median line, the anterior angles, and in some specimens the sides also, ferru-

ginous; or ferrugineo-testaceous, with an indistinct divided discoidal patch.

Var. 3. The prothorax with a median line, and the elytra with an oblong spot about the middle of the disc,

ferruginous.

Var. y. The elytra each with an oval spot at the apex, and sometimes an oblong spot at the middle, ferruginous

or testaceous.

Var. 5. The prothorax with a ferruginous median stripe; the elytra ferruginous, with a very large scutellar

patch and a common cruciform mark towards the apex, these markings sometimes connected at the sides

and suture, black.

Hab. Mexico, Cordova (Hége), Yucatan (Pilate, in coll. Janson), Temax in North

Yucatan (Gawmer); Panama, Volcan de Chiriqui (Champion), Obispo (Salvin).—

Braziu2, Santa Catharina !; ANTILLES, Grenada, St. Vincent.

The numerous specimens before me from our region cannot be satisfactorily separated

from others from Brazil in the Janson collection determined as I. posticus by Candéze.

The coloration of the upper surface, as in M. vespertinus, M. varians, &c., is very

variable. ‘The variety « is from Yucatan and Chiriqui, some of the Chiriqui specimens

having the thorax in great part ferrugineo-testaceous ; the variety 6, represented by one

specimen, is from Cordova; the variety y is from the islands of Grenada and St. Vincent,

and one of the Yucatan specimens shows traces of the apical elytral spot; the variety 6

is from Yucatan and Chiriqui. The scutellum, as in the Brazilian specimens, is more

or less ferruginous or rufous. In the Yucatan examples the interspaces between the

punctures on the thorax are very minutely reticulate and dull, but I cannot separate

them from the others from Panama, &c. ‘The punctuation of the thorax is coarser and

less dense than in I/. aversus, M. varians, M. bipustulatus, &c. ‘The insect is allied to

M. piceus, Steinh., from Colombia, but it is more elongate and less depressed. Candéze

also gives? Buenos Ayres as a locality for M. posticus.

22. Monocrepidius exclamationis. (Tab. XV. fig. 14, var.)

Molus exclamationis, Cand. Monogr. Elat. ii. p. 303, t. 5. fig. 25°.

Monocrepidius vespertinus, Steinh. Col. Hefte, xiv. p. 123 (nec Fabr.) °.

Monocrepidius incommodus, Fleut. Ann. Soc. Ent. Fr. 1891, p. 279°.

Hab. Mexico, Cordova, Tapachula (Hége), Teapa in Tabasco (Pilate, Hoge, H. H.

Smith) ; British Honpuras (coll. Janson) ; GuaremaLa, Teleman and San Gerdénimo in

MONOCREPIDIUS. 301

Vera Paz, Rio Naranjo, Paraiso, Zapote (Champion) ; Panama, Bugaba and Caldera in

Chiriqui (Champion).—CotomBia 2, Carthagena!; VENEZUELA ®.

A very variable species. The varieties are not peculiar to any one locality, as most

of them have been collected together at Teapa by Mr. H. H. Smith, and at Rio Naranjo

and Paraiso by myself. In the palest forms the dark markings on the thorax are

reduced to a median vitta, abbreviated behind, and a narrow streak at the margins,

and those on the elytra to a subtriangular scutellar patch and an angulated post-median

fascia, connected or not at the suture. In the darkest specimens the thorax has only |

the anterior and hind angles testaceous, and the elytra are entirely infuscate. In the

form described and figured by Candéze, and in the type of MM. incommodus, the

elytra have a sinuous stripe on the disc extending to a little beyond the middle,

and an ante-apical spot, testaceous; in many specimens the sinuous stripe is broken

up into two spots.

M. incommodus, Fleut., the type of which has been communicated by its describer,

does not differ from M. exclamationis, Cand. ; the fourth joint of the tarsi is lamellate

in both. The punctuation of the thorax is exceedingly fine and close. MM. exclamationis

may be distinguished from MW. inconstans and M. vespertinus, the light-coloured varietal

forms of which are very similar, by the thorax being infuscate at the sides, the disc

with an undivided median vitta; the genitalia of the male are also very different, the

outer lobes in MW. exclamationis being slender and feebly curved outwards, and armed

on the exterior edge near the tip with one long and two short projecting points. A

specimen from British Honduras is figured.

23. Monocrepidius inconstans. (Tab. XV. fig. 15.)

Moderately elongate, feebly shining, finely pubescent; testaceous or ferrugineo-testaceous, the head piceous or

fuscous, testaceous in front; the prothorax with two spots or vitte on the anterior part of the disc, and

the elytra with a large subtriangular patch at the base, a common cruciform mark or patch beyond the

middle, and sometimes the sides anteriorly, piceous or black; the antenn testaceous, the legs flavous.

Head convex, thickly, finely punctate, the frontal carina rounded and not prominent; antennz with

joint 3 a little longer than 2, the two together about as long as +. Prothorax not or scarcely as long as

broad, narrowed in front, the sides rounded anteriorly and sinuate behind; the hind angles strongly

produced, triangular, divergent, finely carinate at the sides above, the carina short, placed very close to

the margin, and confluent with it at the apex of the angle; the surface densely, minutely punctate, with

intermixed slightly coarser punctures. Elytra two and one-half times the length of the prothorax,

narrowing from about the middle, rounded at the apex; deeply punctate-striate, the interstices feebly

convex and very finely rugulose.

Var. The prothorax with two broad vittee on the disc, extending nearly or quite to the base, and the elytra

entirely, fuscous or piceous.

Length 5-7, breadth 13-2 millim. (¢ Q.)

Hab. Mexico, Puebla (Sailé), Teapa in Tabasco (H. H. Smith); Guatemata, Rio

Naranjo, Zapote (Champion).

Seven examples. Closely resembling VV. vespertinus (Fabr.), of which, at first sight, it

352 SERRICORNIA.

would appear to be nothing more than a small variety; but differing from that insect in

having the thorax considerably shorter in both sexes. It is equally variable in colour.

The punctures of the thorax are unequal in size. The genitalia of the male are formed

very much as in I. vespertinus; the outer lobe is curved outwards and truncated at

the tip, the apical margin armed with three or four short teeth. A specimen from

Teapa is figured.

24, Monocrepidius aversus.

Monocrepidius aversus, Lec. Trans. Am. Phil. Soc. x. p. 482 (1853)’; Cand. Monogr. Elat. 11.

p. 259°.

Hab. Norta America, Georgia !2.—Mexico, Ventanas in Durango (Forrer), Jalapa,

Tapachula (Hége), Oaxaca (Sallé), Teapa in Tabasco (H. H. Smith); GUATEMALA

(Sallé), Aceituno (Salvin, Champion), Chacoj and San Gerdnimo in Vera Paz, Guatemala

city, Capetillo, Zapote, Rio Maria Linda, Champerico (Champion); Costa Rica, Caché,

Volcan de Irazu (ogers).

This is a common insect in Central America. The colour of the thorax and elytra

is variable, but the scutellum is always flavous or rufous; the thorax has the hind

angles, or the entire base, and sometimes 2 narrow median line or marginal stripe, of

this colour; the elytra are usually brown or pitchy-brown, but they sometimes have a

broad submarginal vitta or |-shaped mark testaceous. ‘The thorax is a little longer in

the male than in the female, and is densely, finely punctate, sometimes with a few

scattered slightly coarser punctures intermixed, these becoming a little more distinct

at the sides. I have seen upwards of seventy: specimens of JM. aversus, including

several from the United States. In the single example from Champerico, on the

Pacific coast, the thorax has numerous distinct intermixed coarser punctures, this

specimen approaching \Z. tumidicollis, from the Atlantic coast.

25. Monocrepidius bipustulatus. (Tab. XV. fig. 17.)

Moderately elongate, rather convex, slightly shining ; piceous or brown, the hind angies of the prothorax, the

scutellum, and a large spot on the outer part of each elytron near the apex, flavous or testaceous, the

head in front, a line down the middle of the prothorax, and sometimes the latcral margins also, ferruginous

or testaceous ; the antenne testaceous, the legs flavous; the surface thickly clothed with a fine, silky,

yellowish-cinereous pubescence. Head convex, clesely, very finely punctate, the frontal carina rounded

and not prominent ; antenne moderately elongate, joint 3 slightly longer than 2, the two together about

the length of 4. Prothorax as long as broad, narrowed in front, the sides rounded anteriorly and feebly

sinuate behind; the hind angles broadly triangularly produced, not divergent, finely carinate at the sides

above, the carina short, very close to the margin, and extending obliquely inwards in front; the surface

densely, very finely punctate, the punctures equal in size. Elytra twice the length of the prothorax,

narrowing from about the middle, feebly truncate at the apex; finely punctate-striate, the punctures

distinct throughout ; the interstices feebly convex, thickly, minutely punctate. Beneath densely, very

finely punctate. Fourth tarsal joint somewhat broadly lamellate beneath.

Var. The elytra each with an oblique ferruginous spot about the middle.

Length 63-8, breadth 2-22 millim.

MONOCREPIDIUS. 309

Hab. Guaremaa, Chacoj and Teleman in the Polochic valley (Champion) ; Nicaragua,

Chontales (Belt, Janson); Panama, Bugaba (Champion).

Twelve specimens, including one of the variety, the latter being from Bugaba.

Closely allied to MW. aversus, Lec., but less opaque, the elytra relatively shorter and

each with a large flavous or testaceous spot near the apex. From the similarly-coloured

M. sticturus, Cand., from Venezuela &c., it may be known by the broader and less

acute hind angles of the thorax, the carina of which is much shorter and finer, and

extends obliquely inwards in front. M. (olus) variabilis, Fleut., from Venezuela, is

also a closely allied form; but it has the elytra narrowing from the base, and also

differently coloured, the scutellum infuscate, &c. The apical spots in M. bipustulatus

are sometimes small. A specimen from Teleman is figured.

26. Monocrepidius varians. (Tab. XV. fig. 18.)

Monocrepidius varians, Steinh. Col. Hefte, xiv. p. 121’.

Monocrepidius baleni, Steinh. loc. cit. p. 122°.

Monocrepidius letus, Dej. Cat. 3rd edit. p. 98°.

Hab. Guatemata, San Gerdnimo and El Jicaro in Vera Paz (Champion); Panama,

Bugaba and Caldera in Chiriqui (Champion).—Cotomsia?, Muzo1, San Carlos!?;

VENEZUELA.

This insect is closely allied to WM. vespertinus (Fabr.)*, from the Middle and Southern

United States of North America and Cuba, and, judging from the specimens so named

in the Janson collection, was confounded with that species by Candéze, his southern

localities referring to If. varians. It may be known from UM. vespertinus by the thorax

being longer in both sexes, more finely punctured, and less sinuate at the sides behind ;

the hind angles, moreover, are broader, with the carina finer and turning obliquely

inwards in front (almost parallel with the margin in J. vespertinus, M. inconstans, &c.).

In this last-mentioned character I. varians resembles M. aversus, Lec., from which it

differs in its longer thorax and more attenuate elytra. /. baleni is a dark form, with

the elytra infuscate ; we also have it from San Gerdnimo and Bugaba. The elytra are

feebly truncate at the apex. In the two specimens from Guatemala the thorax is very

densely punctured. The types of Steinheil’s species have been kindly communicated

by M. René Oberthiir. A specimen from Bugaba is figured.

27. Monocrepidius tumidicollis.

Monocrepidius tumidicollis, Cand. Monogr. Elat. ii. p. 261°.

Monocrepidius sericatus, Schmidt, in litt.

Hab. Nicaracua, Mosquito Coast 1.

* The M. vespertinus of Steinheil (Col. Hefte, xiv. p. 123)=M. exclamationis, Cand.

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 1, May 1895. 27

354 SERRICORNIA.

There are three specimens of this species in the Janson collection, one from that of

Schaum. The insect resembles IM. aversus, but it is broader and has very distinct

coarser intermixed punctures on the thorax.

28. Monocrepidius pictus. (Tab. XV. figg. 19, 19 a, 20, vars.)

Monocrepidius pictus, Cand. Monogr. Elat. i. p. 267°.

Hab. Mexico, Tierra Colorada in Guerrero and Teapa in Tabasco (H. H. Smith),

Acapulco, Morelia in Michoacan, Yautepec in Morelos, Mexico city, Cordova, Jalapa,

San Juan Bautista in Tabasco, Tehuantepec (Hége); GuaTeMaLA, Champerico, Paso

Antonio (Champion), Zacapa (Sallé 1); Nicaragua, Chontales (EZ. MZ. Janson); Panama,

Bugaba, Tolé (Champion).—Cotomsia, Honda on the Magdalena River ; Amazons, Ega

(Bates).

This extremely variable insect has been found in plenty in many of the above-quoted

localities. ‘The numerous specimens from Champerico on the Pacific coast, and some

others from Tehuantepec, Morelia, and Tolé, are in great part black and unusually

large; those from Tabasco, Ega, &c. are very small and brightly coloured. The

tuberculate base of the thorax distinguishes it readily from the closely allied M. beldus*.

We figure two extreme varieties—one from Champerico and one from San Juan

Bautista.

29. Monocrepidius bellus. (Tab. XV. fig. 21, var.)

Elater bellus, Say, Journ. Acad. Phil. i. p. 168 (1823)'; Complete Writings, ii. pp. 108, 614°.

Monocrepidius bellus, Lec. Trans. Am. Phil. Soc. x. p. 484°; Cand. Monogr. Elat. 11. p. 266°.

Cryptohypnus bellus, Germ. Zeitschr. fiir Ent. v. p. 147’.

Monocrepidius variegatus, Steinh. Col. Hefte, xiv. p. 123°.

Monocrepidius venustulus, Cand. in litt.

flab. Nortu America! ?, Middle and Western States * 4+.—Muexico, Cordova, Toxpam

(Sallé), Teapa in Tabasco (H. H. Smith), San Juan Bautista in Tabasco (Hodge) ;

British Honpuras, R. Hondo (Blancaneaus); Panama, Bugaba (Champion).—Sovtu

America, Magdalena River °, Ega, Monte Video, Buenos Ayres.

This species appears to be much rarer in Central America than UV. pictus. The

specimens from ‘Tabasco and British Honduras are im great part rufo-testaceous, the

thoracic markings being reduced to two or four spots on the disc (entirely obsolete in

one specimen), and those on the elytra to some marks at the base and sides and a

sharply angulated fascia near the apex. I have examined the type of M. variegatus,

Steinh. Specimens from Monte Video and Buenos Ayres, in the Janson Collection,

* M. pictus, Cand., is incorrectly sunk as a synonym of M, bellus, Say, by M. Fleutiaux: cf. Ann. Soc. Ent.

Belg. 1895, p. 168.

(2)

MONOCREPIDIUS. 359

labelled MW. venustulus, Cand., do not differ from those from North America. We

figure a variety from Teapa.

30. Monocrepidius mexicanus. (Tab. XV. fig. 22.)

Moderately elongate, rather broad, somewhat depressed, dull, finely cinereo-pubescent ; the head piceous, with

rufous marks in front and behind; the prothorax pitchy-black, with the lateral margins and a median

line rufous, and the basal margin and hind angles testaceous ; the scutellum and antenne testaceous ; the

elytra pitchy-black ; the under surface ferruginous, the propleure at the sides, the dilated portion of the

epipleure, and the legs, flavous. Head convex, thickly punctured, with a short smooth carina on the

vertex, the frontal carina not prominent; antenne rather short, joints 2 and 3 equal in length, the two

together longer than 4. Prothorax a little broader than long, narrowed in front, the sides rounded

anteriorly and feebly sinuate behind ; the hind angles strongly, triangularly produced, scarcely divergent,

carinate at the sides above, the carina short and joining the marginal one at the tip; the surface thickly,

somewhat coarsely punctate, the interspaces with scattered much finer punctures. Scutellum rather

convex. LElytra about twice the length of the prothorex, flattened on the disc, narrowing from the

middle, and rounded at the apex; very deeply punctate-striate, the punctures indistinct; the interstices

flat on the disc, convex at the sides, and very finely punctured. Posterior coxal plates very broadly

dilated inwards. Fourth tarsal joint with a long narrow lobe beneath.

Length 6, breadth 2 millim.

Hab. Mexico, Chilpancingo in Guerrero (Hége).

One specimen. Allied to YW. piceus, Steinh., from Colombia, but broader and more

convex; the punctures of the thorax unequal in size. Inthe punctuation of the thorax

it approaches W/. twmidicollis.

31. Monocrepidius sexpustulatus. (Tab. XV. fig. 24.)

Moderately elongate, rather convex, shining, finely pubescent ; the head and prothorax piceous or fuscous, the

Var.

latter with a very large patch on either side at the base, sometimes connected, and in one specimen a spot

near the anterior angles, testaceous or ferrugineo-testaceous ; the scutellum ferruginous ; the elytra black,

each with three rather large testaceous spots—one close to the shoulder, one, transverse or oblique, about

the middle of the disc, nearly reaching the suture, and one on the disc near the apex, the anterior two

sometimes connected ; the antennz testaceous, the legs flavous; the under surface testaceous or ferru-

ginous. Head convex, thickly, finely punctate, the frontal carina rounded and moderately prominent ;

antenne with joint 3 slightly longer than 2, the two together longer than 4. Prothorax convex, about

as long as broad, narrowed in front, the sides rounded anteriorly and sinuate behind; the hind angles

sharply, triangularly produced, slightly divergent, carinate at the sides above, the carina short and

joining the marginal one at the tip; the surface sparsely, finely punctate, the interspaces with some

exceedingly minute scattered punctures. Scutellum convex in front. LElytra about twice as long as the

prothorax, narrowing almost from the base, conjointly rounded at the apex; very deeply punctate-

striate, the interstices convex and somewhat roughly punctured. Fourth tarsal joint with a long narrow

lobe beneath.

a. The testaceous patch on either side of the base of the prothorax smaller; the apical spot on each

elytron obsolete and the others small.

B. The prothorax rufo-testaceous, with a triangular piceous or fuscous patch of variable size on the disc,

extending from the apex downwards, sometimes reduced to a short stripe in front; the elytra with the

testaceous markings more extended, the second spot reaching the margin.

y. The head in front, and the prothorax entirely, rufo-testaceous ; the elytra ferrugineo- testaceous, with a

short, narrow, sutural stripe in front and a common cruciform mark towards the apex, the latter extending

along the suture to the tip, and in one specimen connected at the suture with the anterior mark, black

or piceous.

Length 2: 3-4, breadth 1-13 millim.

242

356 SERRICORNIA.

Hab. Mexico (coll. Janson); Guatnmata, San Gerénimo and Zapote (Champion) ;

Panama, Volcan de Chiriqui, David (Champion).

Numerous examples. The form I have taken as the type is from San Geronimo ;

the var. a, one specimen, is from the same locality ; the var. 6 is from Mexico, Zapote,

and Chiriqui; the var. y, two specimens, is from Zapote. ‘This minute species is not

very closely allied to any of the other members of the genus here enumerated, the

In some of the specimens a very minute interstitial punc-

following excepted.

We figure a typical example from

tuation is distinctly visible on the thorax.

San Gerénimo.

82. Monocrepidius parvulus. (Tab. XV. fig. 25.)

Short and broad, convex, shining, finely and rather sparsely pubescent; the head piceous; the prothorax

ferrugineo-testaceous, with a large, triangular piceous patch on the disc extending from the apex down-

wards, or piceous, with a large patch on either side at the base and the anterior angles ferrugineo-

testaceous; the scutellum ferruginous; the elytra ferrugineo-testaceous, with the basal margin, the

suture rather broadly in front, an oblique stripe extending downwards from it to near the middle of the

outer margin (interrupted in one specimen), and a common cruciform mark towards the apex, extending

along the suture to the tip, piceous or fuscous ; the antenne testaceous, the legs flavous, the under surface

ferruginous. Head convex, finely punctured, the frontal carina not prominent; antenne with joint 3

slightly longer than 2, the two together longer than 4. Prothorax convex, about as long as broad, very little

narrower in front than at the base, rounded at the sides, and somewhat abruptly constricted and sinuate

immediately before the base; the hind angles strongly, triangularly produced, scarcely divergent, with a

short, sharp carina at the sides above; the surface rather sparsely, finely punctate, and canaliculate

behind. Scutellum convex. Elytra about one and two-thirds the length of the prothorax, narrowing

from the middle, conjointly rounded at the apex; deeply punctate-striate, the interstices convex and

sparsely punctured. Fourth tarsal joint with a long narrow lobe beneath.

Length 3, breadth 1 millim.

Hab. Mexico, Cordova (Sallé), Orizaba (coll. Janson).

Two specimens. Allied to VW. sexpustulatus, but less elongate and relatively broader,

the thorax more rounded at the sides, the elytra not twice the length of the thorax,

the elytral markings different. The piceous elytral markings consist of a common

A-shaped mark before the middle and a rather broad cruciform mark towards the

apex.

HETERODERES.

Heteroderes, Uatreille, Ann. Soc. Ent. Fr. 1834, p. 155; Candéze, Monogr. Elat. ii. p. 350.

The species included under this generic name by Candéze differ from Monocrepidius

in having a double system of punctuation on the thorax—the interspaces between the

larger punctures being densely and very finely punctured,—and in some cases on the head

and under surface also. About eighty species of Heteroderes are known, the majority .

of which are from the Old World. ‘The genus is not adopted by Leconte and Horn.

HETERODERES. 357

Monocrepidius suturalis, Lec. (= Atolus rufulus, Cand.), JM. sordidus, Lec., and

M. robustus, Horn, belong to it.

Fourth joint of the tarsi rather broadly lamellate beneath ; the under surface

with intermixed coarse punctures . . sordidus.

Body broad ; the coarse punctures on the prothorax somewhat closely placed.

Body narrow ; the coarse punctures on the prothorax more scattered

Fourth joint of the tarsi very narrowly lamellate beneath.

Under surface without intermixed coarse punctures ;

length 8-9 millim. . . 1... .. . .

Under surface with intermixed coarse punctures ; elytra short; length

. heterostixus.

elytra elongate ;

granulatus.

® ° °

Smillim ...... gibbulus.

1. Heteroderes sordidus.

Monocrepidius sordidus, Lec. Trans. Am. Phil. Soc. x. p. 482°; Cand. Monogr. Elat. il. p. 271°;

Horn, Trans. Am. Ent. Soe. ii. p. 312°.

Heteroderes lantus, Cand. Ann. Soc. Ent. Belg. 1889, p. 97 (Hlat. Nouv. iv. p. 31) *.

Hab. Nortu America, Florida 4, Arizona, Gila River !.,—Merxico, Northern Sonora

(Morrison).

Sent in numbers by Morrison from Sonora. The very fine interstitial punctuation of

the thorax is not mentioned by Leconte; it is, however, noticed by Dr. Horn?. I have

examined a specimen of H. lantus communicated by Dr. Candéze, and also various

examples of U/. sordidus, Lec., received from Dr. Horn; they belong to one species.

2. Heteroderes heterostixus.

Heteroderes heterostixus, Cand. Ann. Soc. Ent. Belg. 1889, p. 96 (Elat. Nouv. iv. p. 30) °.

Elongate, moderately convex, slightly shining ; brown or blackish-brown, the hind angles of the prothorax and

the antenne testaceous, the legs and palpi flavous; the upper surface thickly clothed with a very fine,

pruinose, appressed, yellowish-cinereous pubescence, with intermixed semierect hairs; the under surface

finely pubescent. Head sparsely, rather coarsely punctate, the interspaces with exceedingly minute

punctures ; the frontal carina prominent, subtruncate at the middle; antenne moderately long, joint 3

twice as long as 2, the two together a little longer than 4. Prothorax slightly longer than broad,

narrowed in front, the sides rounded from the middle forwards and strongly sinuate behind ; the hind

angles strongly, acutely produced, divergent, finely carinate at the sides above, the carina short and

joining the marginal one at the tip; the surface sparsely, rather coarsely punctate, the interspaces with

exceedingly minute punctures, obsoletely grooved down the middle. Elytra about two and one-third

times the length of the prothorax, narrowing from the middle, rounded at the apex; deeply punctate-

striate, the punctures very distinct throughout; the interstices convex, closely and exceedingly minutely

punctate, with widely scattered coarser punctures. Beneath densely, exceedingly minutely punctate,

with intermixed coarse punctures. Posterior coxal plates very broadly widened inwards. Fourth tarsal

joint strongly lamellate beneath.

Length 64-84, breadth 12-23 millim.

-Hab. Mexico, Playa Vicente in Vera Cruz (Hége), Teapa in Tabasco (Pilate,

H. H. Smith) ; Guatemaza 1, San Juan in Vera Paz, Guatemala city (Champion).

358 SERRICORNIA.

Allied to H. sordidus (Lec.), but considerably narrower, and with the coarse punctures

on the thorax more scattered, the elytral interstices more convex. Both insects have a

double system of punctuation, above and beneath, this being accompanied by a

corresponding difference in the vestiture. A fuller description is given from the ten

specimens we have received, these agreeing well with the type communicated by

Dr. Candéze.

8. Heteroderes granulatus.

Elongate, rather broad, convex, opaque; brown or blackish-brown, the prothorax with the base on either side,

or the inner part of the hind angles, obscure testaceous, the antenne ferruginous, the legs testaceous ;

the surface thickly clothed with a short, fine, decumbent fulvo-cinereous pubescence. Head convex,

densely, finely punctate, with intermixed coarser punctures, the frontal carina rounded and moderately

prominent ; antenn slender, rather short, still shorter in the female, joint 3 nearly twice as long as 2

and a little shorter than 4. Prothorax about as long as broad in the male, shorter in the female,

narrowed in front, the sides rounded anteriorly and feebly sinuate behind; the hind angles strongly,

triangularly produced, slightly divergent, sharply carinate above, the carina short and joining the marginal

one at the tip, and with a short fine oblique ridge extending inwards from the apex of the angle; the

surface very densely, minutely punctate, with scattered intermixed much coarser punctures. Llytra

about two and one-fourth times the length of the prothorax, rapidly narrowing from a little below the

base, and slightly rounded at the sides, the apices also rounded; finely punctate-striate; the interstices

feebly convex at the sides and apex, flat on the disc, densely, minutely reticulate, and also sparsely

granulate, the granular elevations becoming more distinct towards the base. Beneath densely, finely

punctate, the prosternum sparsely and somewhat coarsely punctured. Posterior coxal plates very broadly

widened inwards. Fourth tarsal joint with a long narrow lobe beneath.

Length 83-97, breadth 21-22 millim. (¢ @.)

Hab. Mexico, Presidio de Mazatlan and Ventanas (forrer).

Two examples. ‘This insect is closely allied to various South American and Antillean

forms, from which it may be known by its convex shape and attenuate elytra, the

latter with the interstices distinctly granulate (as well as reticulate) and the apices

rounded. The minute interstitial punctuation of the thorax is denser, and the larger

punctures finer, than in H. sordidus and H. heterostixus.

4. Heteroderes gibbulus. (Tab. XV. fig. 26.)

Short and robust, broad, rather dull, finely pubescent, obscure ferruginous, the suture of the elytra infuscate,

the legs and antennx flavo-testaceous. Head convex, thickly punctured, the interspaces exceedingly

minutely punctate, the frontal carina rather prominent; antenne scarcely reaching the base of the

elytra, joint 3 a little longer than 2, the two together longer than 4. Prothorax convex, as long

as broad, narrowed in front and behind, the sides rounded ; the hind angles strongly produced, triangular,

acute, not divergent, without distinct carina above; the surface thickly, rather coarsely punctate, the

interspaces exceedingly minutely punctate. Elytra about one-half longer than the prothorax, and

narrower than it at the base, rounded at the sides in front and rapidly narrowing from the middle,

conjointly rounded at the apex; deeply punctate-striate, the interstices convex and closely, exceedingly

minutely punctate. Beneath sparsely, coarsely punctate, the interspaces closely and very minutely

punctured. Posterior coxal plates broadly widened inwards. Legs rather short; the fourth tarsal joint |

feebly produced beneath.

Length 3, breadth 14 millim.

Hab. Mexico, Ventanas in Durango (Hoge).

HETERODERES.—OLUS. 359

One specimen only of this peculiar little species has been received. Allied to

H. robustus (Horn), from Arizona, but much smaller and more convex, the elytra

relatively shorter and with convex interstices, the thorax narrowed behind and without

distinct carina to the hind angles.

JEOLUS.

4Holus, Eschscholtz, in Thon’s Archiv, ii. 1, p. 33 (1829); Candéze, Monogr. Elat. ii. p. 272.

Holus is here retained, following Candéze, for those species of Monocrepidiini

with the fourth tarsal joint feebly produced beneath. It is connected on the one

side with Monocrepidius and on the other with Drasterius, some of the species

being intermediate. olus includes a large number of species, most of which are

from Tropical America; 142 have been described, five only of these being from the

Old World. The majority of them have well-defined markings on the thorax

and elytra, but the markings are often very variable. Thirty species are here

enumerated from Mexico or Central America, seventeen of which are described as

new. The North-American Monocrepidius (Drasterius) amabilis, Lec., also belongs

to it. The genus is not adopted by Leconte and Horn.

a, Supra-marginal carina of the prothorax gradually approaching the margin

behind and joining it at the apex of the angle.

a’. Elytra emarginate at the apex, the sutural and outer angles mucronate ;

antenne with joint 3 twice as long as 2; supra-marginal carina of the

prothorax extending forwards to the middle and joining the marginal

carina behind at the apex of the angle . . .... . =. . . . Species 1.

b'. Elytra rounded at the apex ; antennz with joints 2 and 3 equal, or 3 not

much longer than 2. .

a", Supra-marginal carina of the prothorax extending forwards to the

middle and joining the marginal carina behind at the apex of the angle ;

scutellum feebly or moderately convex. . . . . . . . . « ~~ Species 2-10.

6". Supra-marginal carina of the prothorax shorter, not extending forwards

to the middle.

a', Scutellum feebly or moderately convex . . . . . . . . . . Species 11-16.

ob", Scutellum with a conically raised prominence in the middle . . . Species 17-19.

6. Supra-marginal carina of the prothorax almost or quite parallel with the

marginal carina, and abbreviated behind; elytra rounded at the apex;

scutellum feebly or moderately convex ; antennze with joints 2 and 3 equal,

or 8 not much longer than 2.

c'. Supra-marginal carina of the prothorax extending forwards to the middle.

c’, Elytra conjointly rounded at the apex . . . . . . . « « « « Species 20-27.

d", Elytra separately rounded at the apex . . . . . . . . . « © 6 Species 28.

d'. Supra-marginal carina of the prothorax shorter, not extending to the

middle.

e!, Elytra not narrowed at the base . . . . . . . . . . . .). Species 29.

f'. Hlytra narrowed at the base . . . . . . . 1 ee eo © | «Species 80.

360 SERRICORNIA.

1. Molus bimucronatus, (Tab. XV. figg. 23, 23 a.)

Elongate, moderately convex, subopaque, very finely pubescent; flavo-rufous or ferrugineo-testaceous, the

head, except in front, more or less infuscate, the hind angles of the prothorax flavo-testaceous ; the elytra

with the basal third or fourth, and a broad transverse fascia beyond the middle, narrowly divided at the

suture, black or pitchy-black ; the scutellum, under surface, and antenne ferruginous, the legs flavo-

testaceous. Head convex, closely, very finely punctate, the frontal carina rounded and rather prominent ;

antenne with joint 3 nearly twice as long as 2, the two together slightly longer than 4. Prothorax as

long as broad, narrowed in front, the sides parallel behind and feebly rounded from the middle forwards ;

the hind angles broadly, triangularly produced, acute, finely carinate at the sides above, the carina

extending forwards to about the middle of the prothorax and connected at the apex of the angle

with a short faint oblique ridge ; the surface dull, closely, minutely punctate. Elytra twice the length

of the prothorax, and narrower than it, narrowing from the base, the apices truncate, each finely

mucronate at the sutural and outer angles; deeply and rather finely punctate-striate, the interstices feebly

convex and somewhat roughly punctured.

Length 63-84, breadth (of the prothorax) 13-24 millim. (¢ 2.)

Hab. Panama, Bugaba, Caldera, Volcan de Chiriqui (Champion).

Seven examples. Allied to 4. platynotus, Cand., from the Amazons; but

differing from it in the longer apical joint of the tarsi, and in its narrower, immaculate

thorax, with the carina of the hind angles longer and nearly parallel with the margin

in front. The thoracic carina varies a little in length. In one specimen the black

on the base of the elytra extends a little downwards along the suture and at the sides.

The post-median fascia varies in width, but it is more or less divided at the suture.

Dr. Candéze informs me that the insect is quite distinct from his 4. steinheili, from

Colombia.

2. Holus nigromaculatus.

Elater nigromaculatus, Drap. Ann. Gén. Sci. Phys. iii. p. 271, t. 42. fig. 2 (1820) *.

Holus nigromaculatus, Cand. Monogr. Elat. ii. p. 801, t. 5. fig. 15”.

Hab. Ntcaracua, Chontales (Z.°M. Janson); Panama, Chiriqui (Ribde), Bugaba,

Caldera, and David in Chiriqui (Champion).—CotompBia?; Guiana!?; AMAZONS ;

ANTILLES, Grenada I., Mustique I.

This widely distributed species varies greatly in size, the Chiriqui specimens varying

from 6-94 millim. in length. It varies very little in coloration. ‘The punctuation of

the thorax is coarse. The very long thoracic carina distinguishes it from 4. pulchellus,

apart from the difference in coloration. The insect has recently been found in plenty

by Mr. H. H. Smith in the Island of Grenada.

3. Molus facetus. (Tab. XVI. figg. 1, 1a, var.)

Afolus facetus, Cand. Monogr, Elat. i. p. 318, t. 5. fig. 33°.

Var. a. The discoidal patch or vitta on the prothorax greatly dilated, and divided down the middle; the

elytra (as in the type) with a broad subtriangular patch at the base, extending to the humeri, a broad

post-median fascia, and the suture narrowly, black.

ZEOLUS. 361

Var. 8. The median vitta on the prothorax entire ; the elytra with a broad sutural stripe, gradually widening

forwards and not reaching the base, and a post-median fascia, more or less constricted at the middle of

the disc, black. (Fig. 1.)

Hab. Nicaracua, Chontales (Belt, HE. WM. Janson); Panama, Bugaba, Caldera, and

David in Chiriqui (Champion), Matachin (Schunke, in coll. Oberthiir).—Gutana }.

Found in numbers by myself in Chiriqui. The three forms were found at the same

localities, and I have no doubt they belong to one variable species. The antenne

about reach the hind angles of the thorax in the male, and are a little shorter in the

female. The supra-marginal carina of the thorax is connected with the marginal one

behind. The scutellum is infuscate or black. The variety 6 closely resembles

4Y. garzoni, Steinh., from Colombia; but in that insect the elytra have a common

transverse patch immediately below the base, a narrow sutural stripe, and a post-median

fascia, black, the head and thorax, moreover, being more finely punctured. According

to the specimens in the Janson collection named by Candéze, two species are confused

under the name .#. facetus—one with the antenne short in the male, the hind angles

of the thorax not divergent, and the supra-marginal carina of the latter entire, as in our

insect, and the other with the antenne elongate in the male, the hind angles of the

thorax divergent, and the supra-marginal carina of the latter abbreviated behind,—both

being from Guiana, and from the Dejean collection; the description and figure seem

to apply best to our species. We figure a specimen of the var. 6 from David.

4. Aiolus hexastigma. (Tab. XV. fig. 27.)

Elongate, feebly convex, shining. finely pubescent; flavous or pale testaceous, the labrum, mandibles, frontal

carina, and base of the head, black; the prothorax with a rather narrow median vitta (widened in front),

the apical, basal, and lateral margins, and the hind angles, black; the scutellum black; the elytra with

the suture, a narrow transverse fascia before, and another beyond the middle, the apex, and the basal

and lateral margins very narrowly, black, these markings surrounding three very large, sharply defined

spots of the ground-colour on each elvtron ; the antennz fuscous or pitchy-brown; the legs flavous, the

tarsi usually more or less infuscate ; beneath flavous, the head, the prosternal sutures and process, the

mesosternum, the sides of the metasternum, the epipleure, the basal margin of each ventral segment, and

a spot on the middle of the fifth segment, black. Head convex, thickly, moderately finely punctate, the

frontal carina rounded; antenne with joint 3 slightly longer than 2, the two together about as long as 4.

Prothorax as long as broad, narrowed in front, the sides rounded anteriorly and feebly sinuate behind ;

the hind angles strongly and acutely produced, slightly divergent, sharply carinate at the sides above, and

with a short oblique ridge extending inwards from the apex of the angle, the supra-marginal carina

extending forwards as far as the middle of the prothorax and joining the marginal one at the tip; the

surface thickly, moderately finely punctate. Elytra twice the length of the prothorax, gradually narrowing

from about the basal third, conjointly rounded at the apex; rather coarsely punctate-striate, the punc-

tures very distinct; the interstices moderately convex and very sparsely punctured. Beneath rather

sparsely punctured, the punctures on the propleure and on the sides of the metasternum exceedingly

coarse, those on the other parts fine.

Length 6-7, breadth 13-2 millim. (¢ 9.)

Hab. Guatemata, Panzos and Teleman in Vera Paz (Champion).

Found in plenty on the banks of the River Polochic, the specimens showing no sign

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, Judy 18965. 3A

362 SERRICORNIA.

of variation. This species is perhaps nearest allied to 4. polygrammus, Cand., though

very different in coloration. ‘The insect is unknown to Dr. Candéze.

5. Holus trimaculatus. (Tab. XVI. fig. 2.)

Elongate, narrow, rather convex, shining, finely pubescent ; testaceous or ferrugineo-testaceous, the head with

the posterior half fuscous or black; the prothorax with a discoidal patch or median vitta, not reaching

the base or the apical margin, black; the elytra with a triangular scutellar patch (extending to the

scutellum), and a transverse mark or spot on the disc at about one-third from the apex, sometimes

reaching the suture, black, the base on either side of the scutellum dilute testaceous ; the antenne

and under surface ferruginous, the legs flavous. Head convex, rather coarsely punctured, the frontal

carina rounded and moderately prominent ; antennz reaching the hind angles of the prothorax, joints 2

and 3 short, subequal, the two together about as long as 4. Prothorax as long as broad, narrowed in

front, the sides rounded anteriorly and parallel behind; the hind angles strongly, acutely produced,

carinate at the sides above, the carina extending forwards to the middle of the prothorax and joining the

marginal one at the tip; the surface thickly, rather coarsely punctate. Elytra about twice as long as the

prothorax, narrowing from the middle, conjointly rounded at the apex; rather finely, but sharply

punctate-striate, the interstices flat on the disc, feebly convex at the sides, and roughly punctured.

Length 44-64, breadth 13-2 millim.

Hab. Panama, Bugaba, David, and Caldera in Chiriqui (Champion).

Four examples, varying greatly in size. This insect resembles 2. signatipennis,

Cand., from Guiana, but it is narrower, and without the distinct, oblique, additional

carina within the hind angles of the thorax, the supra-marginal carina not abbreviated

behind ; it also has the head infuscate behind, the thorax with a discoidal black patch or

vitta, and the scutellar black mark more extended. In one specimen these markings are

very much reduced in size; in the other three the elytral markings are connected along

the suture. Z#. flavus, Fleut., from Venezuela, also resembles the pale form in colour.

6. Aolus testudineus, (Tab. XVI. figg. 3, 3a.)

Moderately elongate, shining, finely pubescent; the head piceous or black, testaceous in front and at the sides;

the prothorax piceous or black, with a large triangular patch on either side behind, extending forwards

along the margins to the apex, testaceous ; the scutellum piceous; the elytra with a short stripe extending

down the suture at the base, a rather broad stripe on the disc before the middle, a short narrow stripe at

the sides in front, and a large, broad, common cruciform mark extending from the middle to the apex,

these markings sometimes connected, piceous or black ; the antenne, legs, and under surface testaceous.

Head convex, thickly punctured, with a short smooth carina on the vertex, the frontal carina rounded

and moderately prominent ; antennz about reaching the hind angles of the prothorax, joints 2 and 3 very

short, equal, the two together not so long as 4. Prothorax as long as broad, narrowed in front, the

sides rounded anteriorly and feebly sinuate behind; the hind angles strongly, triangularly produced,

acute, finely carinate at the sides above, the carina extending forwards to beyond the middle of the pro-

thorax, and joining the marginal one at the tip; the surface thickly, finely punctate. Elytra twice the

length of the prothorax, narrowing from about the basal third, conjointly rounded at the apex ; finely

punctate-striate, the strie becoming deeper and more coarsely punctured towards the sides ; the interstices

flat on the disc, feebly convex at the sides, roughly punctured.

~ Length 5-6, breadth 13-25 millim.

Hab. GUATEMALA, Paso Antonio (Champion).

Iwo specimens, from the banks of the lagoons near the Pacific coast. This species

AZOLUS. 363

belongs to Candéze’s first section of the genus; it should be placed near &. intricatus,

Cand., from Brazil.

7. Molus tripartitus. (Tab. XVI. figg. 4,¢; 4a, antenna.)

Moderately elongate, rather convex, shining, finely pubescent, with widely scattered intermixed fine erect

hairs; bright ferrugineo-testaceous, the scutellum black, the elytra with three transverse black fasciee—

one at the base, one slightly before the middle, and one near the apex, the first and second connected

along the suture, the third interrupted at the suture. Head sparsely, finely punctate, the frontal

carina rounded and moderately prominent ; antenne in the male very elongate, extending to the basal

third of the elytra, shorter in the female, joints 2 and 3 very short, equal, + in the male four times as

long as 3 and very much longer than 5. Prothorax about as long as broad, narrowed in front, the sides

rounded anteriorly and feebly sinuate behind; the hind angles greatly produced, acute, slightly divergent,

finely carinate at the sides above, and with a short oblique ridge extending from the apex inwards, the

supra-marginal carina extending forwards to about the middle of the prothorax and connected with the

marginal one at the tip; the surface sparsely, minutely punctate. LElytra twice the length of the

prothorax, gradually narrowing from the base, conjointly rounded at the apex; finely and lightly punctate-

striate, the punctures distinct ; the interstices feebly convex and sparsely punctured.

Length 53-54, breadth 1} millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

Three males and one female. Closely allied to . trifasciatus, Steinh., from

Colombia, the types of which have been communicated by M. René Oberthiir, but

considerably smaller, the punctuation of the head, thorax, and elytral interstices much

finer and sparser, the third fascia of the elytra interrupted at the suture, broader, and

placed nearer the apex.

8. Molus vulneratus.

Monocrepidius vulneratus, Cand. Elat. Nouv. i. p. 48°.

‘“‘ Niger, nitidus, breviter griseo-pubescens ; antennis rufis, articulis 2 et 3 minutis; prothorace latitudini

longitudine eequali, apice angustato, punctato, subsulcato, angulis posticis validis, longe carinatis, rufis ;

elytris fortiter punctato-striatis, postice rufo utrinque bimaculatis ; subtus pedibusque rufescentibus.——

Long. 9, lat. 23 millim.”

Hab. Mexico }.

We have not received a specimen of this species, the type of which has been kindly

communicated by Dr. Candéze. The penultimate joint of the tarsi is rather feebly

excavate above, and the insect seems to me to be better placed in #olus. It

approaches 4. cruciger, Steinh., but differs from it in having the thoracic carina not

abbreviated behind.

9, Aolus fumatus.

Elongate, narrow, moderately convex, shining, finely pubescent ; piceous or black, the anterior and hind angles

of the prothorax, and the antenn, testaceous, the legs flavous, the epipleure reddish-brown. Head

convex, thickly punctured, with a short smooth carina on the vertex; the frontal carina moderately

prominent ; antenne rather short, joints 2 and 3 short, equal in length, the two together not longer

than 4. Prothorax as long as broad, narrowed in front, the sides rounded anteriorly and feebly sinuate

3A2

364 SERRICORNIA.

behind; the hind angles strongly produced, acute, slightly divergent, finely carinate at the sides above,

the carina extending forwards to the middle of the prothorax and joining the marginal one at the tip;

the surface sparsely, finely punctate. Elytra about twice the length of the prothorax, rapidly narrowing

from the middle, conjointly rounded at the apex; finely punctate-striate, the interstices flat on the disc,

convex at the sides, and somewhat roughly punctured, the sculpture becoming granulate towards the

base.

Length 3-5, breadth 3-17 millim.

Hab. Guatemata, San Juan in Vera Paz (Champion).

Seven specimens, varying greatly in size. Allied to &. nigrinus, Cand., but only

one-half the size, and also much narrower, the thorax finely and sparsely punctured,

the supra-marginal carina extending to the apex of the hind angles, &c. The insect

is unknown to Dr, Candéze.

10. Aolus hemorrhoidalis.

Elongate, rather narrow, moderately convex, finely pubescent, slightly shining; piceous or black, the

head ferruginous in front; the prothorax with the anterior margin on either side and the hind angles

testaceous ; the elytra with the apex narrowly, and the epipleure, testaceous ; the under surface ferruginous

or brown, the antenne testaceous, the legs flavo-testaceous. Head convex, closely punctured, with a

short smooth carina on the vertex, the frontal carina rounded and not prominent; antenne moderately

long, joint 3 much longer than 2, the two together about as long as 4. Prothorax longer than broad,

very little narrowed in front, the sides almost straight and very gradually converging from the hind

angles; the latter greatly produced, slightly divergent, acute, and sharply carinate at the sides above,

the carina extending forwards to beyond the middle of the prothorax and joining the marginal one

at the tip; the surface thickly, moderately finely punctate, the punctures equal in size. Elytra

about twice as long as the prothorax, gradually narrowing from the middle, and slightly truncate at the

apex ; finely punctate-striate, the punctures distinct; the interstices feebly convex and somewhat roughly

punctured, the sculpture becoming granulate towards the base.

Length 6, breadth 14 millim. (<¢.)

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

Four specimens, This insect closely resembles 4. fumatus, but it is more elongate

and larger; the third joint of the antenne is longer; the thorax is very little narrowed

in front and has a longer supra-marginal carina; the elytra have the apex narrowly

testaceous; and the penultimate tarsal joint is less deeply excavate above.

11. Molus obliquus. (Tab. XVI. fig. 5.)

AXolus obliquus, Cand. Monogr. Elat. ii. p. 294, t. 5. fig. 30°.

Hab. Mexico, Tuxtla in Vera Cruz (Sallé !).

A single example of this species is contained in the Sallé collection, and a second in

that of Janson, the latter having been acquired from Candéze.

12. Molus pulchellus. (Tab. XVI. figg. 6, 6a.)

Molus pulchellus, Cand. Monogr. Elat. ii. p. 293°.

Hab. Mexico}, Cordova (Sadlé, Hoge), Orizaba (coll. Janson), Atoyac in Vera Cruz

ROLUS. 365

(H. H. Smith), Almolonga, Jalapa, Tapachula (Hége); GuatemaLa, Panzos, Teleman,

and Cubilguitz in Vera Paz (Champion); Nicaragua, Chontales (Belt, E. M. Janson).

This is one of the commonest species of olus within our limits. The thorax has

a broad median vitta, narrowing posteriorly, and the sides to a greater or less extent,

black. The elytra have a broad oblique patch on the outer part of the disc a little

below the base, extending inwards to the second or third stria, a broad sharply

angulated fascia towards the apex, extending down the suture behind, and sometimes

a short sutural stripe at the base, black. In one specimen, from Cordova, the anterior

discoidal patch is connected with the post-median fascia. The supra-marginal carina

of the thorax is short. The scutellum is convex in front. A specimen from Atoyac

is figured.

13. Aolus marginatus. (Tab. XVI. fig. 7.)

Moderately elongate, shining, finely pubescent ; the head piceous, ferruginous in front; the prothorax testa-

ceous, with a very broad median vitta abruptly narrowing behind, and a short marginal stripe, pitchy-

black ; the scutellum black; the elytra testaceous, with a broad patch on the disc before the middle,

extending to the margin and connected inwards with a short sutural stripe running forwards to the base,

a broad sharply angulated fascia towards the apex, extending along the suture to the tip, and the lateral

margin from the base to the suture narrowly, pitchy-black; the antenne testaceous, the basal third of

the epipleure and the legs flavous, the under surface partly infuscate. Head convex, thickly punctured,

with a short carina on the vertex, the frontal carina rounded and moderately prominent; antennz about

reaching the hind angles of the prothorax, joint 3 a little longer than 2, the two together longer than 4.

Prothorax as long as broad, narrowed in front, the sides rounded anteriorly and sinuate behind; the hind

angles strongly produced, acute, feebly divergent, carinate at the sides above, the carina rather short and

confluent with the marginal one at the tip ; the surface thickly, rather coarsely punctate. Elytra a little

more than twice the length of the prothorax, flattened on the disc, narrowing from the middle, conjointly

rounded at the apex; coarsely and deeply punctate-striate, the interstices rather convex and roughly

punctured.

Length 54, breadth 13 millim.

Hab. Mexico, Teapa in Tabasco (Pilate, in coll. Janson).

One specimen. Allied to &. vermiculatus, from which it differs in having the head

and thorax more coarsely punctured, the thorax with the supra-marginal carina not

abbreviated behind, and the elytra coarsely and deeply punctate-striate ; the elytra

somewhat similarly marked, but with the margins black from the base to the apex, and

the post-median fascia more sharply angulate, the latter extending rather broadly down

the suture to the tip. The elytra have a curved patch at the base, an angulated fascia

a little beyond the middle, and a spot on the disc close to the apex, testaceous, the

black markings being very sharply defined. Less convex, shorter, and more parallel

than 4. pulchellus, the discoidal vitta on the thorax broader and more abruptly

narrowed behind, the elytra margined with black, the scutellum flatter, &c.

366 SERRICORNIA.

14. Holus panamensis. (Tab. XVI. fig. 8.)

Moderately elongate, rather convex, shining, finely pubescent ; ferrugineo-testaceous, the prothorax with a

moderately broad vitta on either side of the disc, extending from the base to the apex, black, and the

hind angles flavous; the scutellum ferruginous; the elytra with a common elongate-triangular patch

extending from the base to the middle, and an elongate A-shaped mark on the disc towards the apex,

confluent with the corresponding mark on the opposite elytron at the suture, and extending along it to

near the apex, black, the apex itself flavo-testaceous; the antennw fusco-testaceous, with the two basal

joints paler, the legs flavous, the under surface ferruginous. Head convex, coarsely, thickly punctate, the

frontal carina moderately prominent; antenne extending to the hind angles of the prothorax, joint 3

nearly twice as long as 2, the two together longer than 4. Prothorax a little longer than broad, narrowed

in front, the sides rounded anteriorly and feebly sinuate behind ; the hind angles greatly produced, not

divergent, acute, sharply carinate above, the carina joining the marginal one at the tip; the surface

coarsely, closely punctate. Scutellum convex in front. Elytra twice the length of the prothorax, rapidly

narrowing from about the middle, conjointly rounded at the apex; very deeply and coarsely punctate-

striate, the interstices convex and roughly punctured.

Length 7, breadth 2 millim.

Hab. Panama, David in Chiriqui (Champion).

One specimen. Allied to &. pulchellus and 4. melliculus, Cand., but differing

from them in coloration, and in the coarse and deep punctuation of the head and

thorax, the latter with the hind angles more sharply carinate above.

15. Afolus melliculus, (Tab. XVI. fig. 9, genitalia, ¢ .)

AGolus melliculus, Cand. Monogr. Elat. ii. p. 295, t. 5. fig. 9 (1859) *; Crotch, in Godm. Nat.

Hist. Azores, p. 75°.

Afolus moreleti, Tarn. Col. Acor. p. 94 (1860) *.

Hab. Mexico, Teapa in Tabasco (H. H. Smith), San Juan Bautista in Tabasco (/6ge),

Yucatan (Pilate); British Honpuras, Belize (Blancaneaur); GuaTEMALA, Cubilguitz

and Panzos in Vera Paz (Champion); Honpuras (Sal/é); Costa Rica, Buenos Aires

(Pittier, in Mus. Brit.); Panama, Volcan de Chiriqui (Champion).—Soutu AMERICA,

Carthagena to Buenos Aires!; ANTILLES, Grenada; AZORES 23.

Var. a. The prothorax with two broad black or fuscous vitte on the disc, narrowing or abbreviated behind,

sometimes occupying the greater part of the surface, sometimes narrower and not extending beyond the

middle.

Hab. Mexico, Cordova and Jalapa (Hoge), Atoyac in Vera Cruz (H. H. Smith) ;

Costa Rica, Buenos Aires (Pittier, in Mus. Brit.).—AZORES.

Var. 6. The prothoracic markings entirely obliterated.

Afolus rubricatus, Cand. Monogr. Elat. ii. p. 294+.

Hab. Mexico (coll. Janson, ex Schaum*), San Nicolas in Vera Cruz, Tuxtla (Sallé*),

Teapa (Pilate), San Juan Bautista in Tabasco (H. H. Smith, Hoge), Yucatan (Pilate) ;

GuaTEMALA, Panzos, Teleman, and Chacoj in Vera Paz (Champion).—ANTILLES,

Grenada.

An extremely variable species. The typical form has been sent in plenty from San

ZEOLUS. 367

Juan Bautista, in company with the var. rubricatus; the var. we have received

only from the Mexican State of Vera Cruz. In a long series from almost any

locality the var. rubricatus is to be found. The elytra usually have a subtriangular

patch at the base and a common cruciform mark beyond the middle—the latter

sometimes joined to a spot on the outer margin, and forming an interrupted fascia,—

connected along the suture, black. In some specimens the suture is broadly black, and

in the others the basal patch is not connected with the post-median mark. The scutellum

is rufo-testaceous. The insect has, no doubt, been introduced into the Azores.

16. Adolus tropicalis. (Tab. XVI. figg. 10; 11, var.; lla, genitalia, ¢ .)

Moderately elongate, rather convex, shining, finely pubescent; testaceous or ferrugineo-testaceous, the head,

except in front, fuscous or piceous ; the prothorax with a large discoidal black patch, extending from the

apex to about one-third from the base and usually longitudinally excised in the middle behind; the

elytra with a broad patch at the base, deeply excised towards the sides behind, and a broad cruciform

mark towards the apex, connected at the suture, and sometimes at the sides also, black (these markings

leaving a broad angulated interrupted median fascia, widening outwards, and a large oblong spot at

the apex, testaceous); the antenne testaceous, the legs flavous, the under surface usually in great part

piceous. Head convex, thickly, finely punctate, the frontal carina rounded and moderately prominent ;

antenne with joints 2 and 3 short and subequal, the two together about the length of 4. Prothorax

convex, slightly longer than broad, narrowed in front, the sides rounded anteriorly and feebly sinuate

behind; the hind angles broadly triangularly produced, sharp, with a short fine carina at the sides

above, the carina joining the marginal one at the tip; the surface thickly, finely, uniformly punctate.

Elytra scarcely twice the length of the prothorax, narrowing from about the middle, and conjointly

rounded at the apex; very deeply punctate-striate, the interstices convex, and thickly minutely

punctate.

Var. a. The prothorax black, with the base and anterior angles testaceous.

Var. 8. The prothorax with two short vitte on the disc in front, and the elytra with a triangular basal patch

and an angulated post-median fascia, black.

Length 54-7, breadth 13-2 millim. (¢ Q.)

Hab. Mexico, Teapa in Tabasco (Hoge); British Hoypuras (coll. Janson); GuatE-

MALA, Teleman and Chacoj in Vera Paz (Champion).

Collected in numbers by myself in the vicinity of the Polochic River, a single specimen

only from each of the other localities. Like many of the allied forms, this species is

very variable in colour, according to the extent of the black markings. 4. tropicalis

is closely allied to . melliculus, and greatly resembles the var. « of that insect; but

may be known from it by the more parallel elytra and by the very different form of

the genitalia in the male; the last-mentioned character will be best understood from our

figures on Tab. XVI. The var. a is from Teapa; the type and the var. 6 from British

Honduras and the Atlantic slope of Guatemala. We figure a typical specimen from

Teleman and a male of the dark variety from Teapa, also the genitalia of the latter.

17. Miolus circumscriptus. (Tab. XVI. fig. 12, var.)

Elater circumscriptus, Germ. Ins. Sp. nov. p. 46 (1824) * (nec Zeitschr. fiir Ent. v. p. 146) (nec

Cand. Cat. Méthod. p. 78).

368 SERRICORNIA.

Moderately elongate, rather convex, shining, finely pubescent; testaceous or rufo-testaceous, the head usually

fuscous or piceous, paler in front; the prothorax with a broad black or piceous median vitta, narrowing

behind ; the scutellum piceous; the elytra with an elongate patch on the disc, a broad sharply angulated

fascia towards the apex, and a short sutural stripe at the base (sometimes obsolete), black or piceous ;

the antenne testaceous, the legs flavous, the under surface rufo-testaceous. Head convex, thickly punc-

tured, the frontal carina rounded and not prominent; antenne with joint 3 a little longer than 2, the

two together slightly longer than 4. Prothorax about as long as broad, narrowed in front, the sides

strongly sinuate behind ; the hind angles narrowly, acutely produced, divergent, carinate above, the carina

short and joining the marginal one at the tip; the surface thickly and rather coarsely punctate. Scutellum

with a conically raised prominence in front. Elytra about twice as long as the prothorax, rapidly

narrowing from the middle, and rounded at the apex; deeply punctate-striate, the punctures distinct

throughout, the interstices feebly convex and roughly punctured. Fourth tarsal joint slightly excavate

above.

Var. The black markings more extended, the discoidal patch forming a broad stripe on each elytron.

(Fig. 12.)

Length 53-64, breadth 13-1? millim. .

Hab. Mexico, Cordova (Sallé, Hoge), Mexico city, Tlacotalpam and Jalapa in Vera

Cruz, San Juan Bautista in Tabasco (Hége); British Honpuras, Belize (Blancaneaux) ;

Nicaragua, Chontales (Belt).—CoLomBIa.

The specimens from which the above description is taken agree well with an example

’

labelled ‘‘ Elater circumscriptus, Germ., Am.-bor.,” in the Janson collection (from that

of Schaum), probably the type. This species is confused in collections with Drasterius

dorsalis * (Say), and it is probable that all the southern localities given by Candéze for

D. dorsalis refer to 4. circumscriptus. It may be known from D. dorsalis by its narrower

shape, the elevated scutellum, the more deeply excavate penultimate joint of the tarsi,

and the narrower, more acute, and more divergent hind angles of the thorax, which are

also more finely carinate, the carina joining the marginal one at the tip. ‘Ihe insect

has been sent in plenty by Herr Hége from Tabasco; the variety, from Mexico city, is

coloured like the form described by Germar. Dr. Horn has examined one of our

Mexican specimens, and he informs me that the insect is unknown to him. JD. dorsalis

is acommon North-American insect, but none of our specimens can be satisfactorily

identified with it. We figure an example of . circumscriptus from Jalapa.

18. Adolus trilineatus. (Tab. XVI. fig. 13.)

Aolus trilineatus, Cand. Monogr. Elat. ii. p. 293°.

Hab. Mexico, ‘luxtla, San Nicolas in Vera Cruz (Sallé!); Guaremaua, Balheu in

Vera Paz (Champion).

I have seen four specimens of this species—two from Mexico and two from Guate-

mala; the two latter have the marginal stripe on the thorax less distinct and the

discoidal vitta on the elytra almost interrupted at the middle. ‘The scutellum has a

strongly raised conical prominence in the centre, a character not mentioned by Candéze.

* This name is incorrectly sunk by Leconte (Trans. Am. Ent. Soc. xii. p. 5) as a synonym of Z. elegans

(Fabr.), an Antillean insect.

ZEOLUS. 369

The thorax has a broad median vitta, narrowing behind, and the sides narrowly, piceous

or black. ‘The elytra are comparatively short, and exceedingly coarsely punctate-

striate. 4. trilineatus is a close ally of 4. circumscriptus, which has the scutellum

similarly formed; but differs from it in having the elytra very coarsely punctate-

striate, and the thorax with a dark marginal stripe.

19. Molus yucatanus. (Tab. XVI. figg. 14, 142.)

Elongate, rather depressed, shining, finely pubescent ; rufo-testaceous, the head and scutellum black ; the elytra

with the base narrowly, a short, narrow, oblique stripe extending from the shoulder to the middle of the

disc, and a rather large subquadrate spot on the disc towards the apex-—incised in front and behind, and

obliquely placed,—black ; the antennz and legs flavo-testaceous, the under surface ferruginous. Head

convex, thickly, somewhat coarsely punctate, the frontal carina rounded and moderately prominent ;

antenne extending to a little beyond the hind angles of the prothorax, joint 3 longer than 2, the

two together longer than 4. Prothorax slightly longer than broad, narrowed in front and behind,

the sides feebly rounded from the middle forwards and strongly sinuate before the base; the hind angles

very narrow, strongly and acutely produced, divergent, finely carinate at the sides above, the carina very

short and confluent with the marginal one at the tip; the surface thickly, somewhat coarsely punctate

the punctures a little more scattered along the middle of the disc. Scutellum with a smooth rounded

prominence in the middle. Elytra two and one-fourth times the length of the prothorax, narrowing from

about the basal third, and conjointly rounded at the apex ; coarsely punctate-striate, the interstices rather

convex and sparsely punctured.

Length 64, breadth 14 millim.

Hab. Muxico, Yucatan (Pilate, in coll. Janson).

One specimen. ‘This very distinct species is allied to &. trilineatus and 2. obliquus,

Cand. ‘The hind angles of the thorax are unusually narrow and very acute, with the

carina extremely short and fine. ‘he elytral markings resemble those of . obliquus,

except that the short oblique stripe on the disc at the base starts from the shoulder,

instead of from the suture. ‘The scutellum is conically raised in the middle, as in

AB. trilineatus.

90. Molus rodriguezi. (Tab. XVI. fig. 25.)

Afolus rodriguezi, Cand. Ann. Soc. Ent. Belg. 1889, p. 94 (Elat. Nouv. iv. p. 28) °.

“Niger, subnitidus, griseo-pubescens; fronte punctata ; antennis rufis; prothorace latitudine longiore, basi

apiceque leviter angustato, eequaliter sat dense punctato, margine antica angulisque posticis rufis; elytris

punctato-striatis, interstitiis rugosis, maculis quatuor rufis ; pedibus flavis.—Long. 7, lat. 14 millim.”

4 .

Hab. GuatemMata }.

Allied to the South-American 4. designatus,Cand. We are indebted to Dr. Candéze

for the loan of the type of this species.

91. Holus pictus. (Tab. XVI. figg. 15, 15a, ¢.)

Aholus pictus, Cand. Monogr. Elat. ii. p. 333, t. 6. fig. 23°.

Hab. Mwxico } (coll. Janson), Chilpancingo in Guerrero (H. H. Smith), Tuxtla, Playa

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, Judy 1895. 3B

370 SERRICORNIA.

Vicente, Panistlahuaca (Sal/é), Cordova, Oaxaca, Tapachula (Hoge); GUATEMALA,

Panzos and Chacoj in Vera Paz, Zapote (Champion).

Var. The elytral vittee abbreviated at about one-fourth from the apex.

Hab. Nicaracua, Chontales (Belt, E. M. Janson) ; Costa Rica (coll. Janson).

This insect is not uncommon in Mexico and Guatemala ; it is found upon both the

Atlantic and Pacific slopes. ‘The type, a female, is before me; the males differ from

it in having the thorax longer, less rounded at the sides, and narrowing from the base,

and the antenne more elongate. The colour of the antenne and legs is variable: the

legs are testaceous in the type, our specimens from Chilpancingo, Panzos, Chacoj, and

Oaxaca agreeing in this respect; the examples from Zapote, and many of those from

Mexico, have the legs infuscate. The thorax has sometimes the base only broadly

black ; but in some specimens it has an abbreviated or entire black median line, or even

a broad black vitta, as in one of the Zapote examples. The variety merely differs from

the type in having the broad submarginal testaceous vitta abbreviated at some distance

before the apex of the elytra, asin one of the forms of . vittatus. The fifth ventral

segment is convex in both sexes, and coarsely, closely punctate, the punctures on the

apical half longitudinally confluent, forming deep irregular grooves. A typical male

from Chilpancingo is figured.

22. Holus vittatus. (Tab. XVI. figg. 16, ¢; 17, 2, var.)

Aolus vittatus, Cand. Monogr. Elat. ii. p. 382, t. 6. fig. 22°.

olus teniatus, Cand. Compt. Rend. Soc. Ent. Belg. 1878, p. Ixxxu (Elat. Nouv. 11. p. 22) °.

Hab. GuateMata 2 (Sal/é), near the city (Salvin); Nicaragua (Sallé, coll. Janson),

Chontales (Belt); Costa Rica (Mus. Brit.).—Sourn America }.

Varies greatly in colour. In the form described by Candéze under the name

4. vittatus the thorax is rufous, with the base broadly black, and the elytral vittee are

abbreviated ; in 4. tewniatus the thorax is black, with the anterior angles, or a long

curved stripe extending from them downwards (as in a Guatemalan specimen in the

Janson collection, labelled . vittatus by Candéze), rufous, and the elytral vitte entire

or abbreviated. The insect is very closely allied to #&. pictus, but differs from it in

the longer and more coarsely punctured thorax in both sexes, the thorax in the male

rapidly narrowing from the base forwards. The punctures on the fifth ventral segment

are a little less distinctly longitudinally confluent. I have examined the type of

i. teniatus, Cand. We figure a dark variety of the male from Nicaragua, and a

female from Guatemala, the latter from Dr. Candéze’s collection.

AOLUS. 371

23, Molus cruciger. (Tab. XVI. figg. 18, 18 a.)

4Holus cruciger, Steinh. Col. Hefte, xiv. p. 124 (1877) '.

Var. The prothorax with a discoidal black patch, which is narrowed in front and behind, and marked with a

rufous line down the middle of the basal half; the elytra with the base, the suture very broadly, a post-

median fascia, the apex, and the epipleure, black; the prosternum in great part black.

Hab. Paxama, Obispo (Salvin).—Co.omsia 1.

A single specimen from Obispo differs from 4. cruciger, Steinh., the type of which

has been communicated by M. René Oberthiir, in being more marked with black ;

it also has the disc of the thorax a little less closely punctured, with a smooth median

line. A: similar variation in colour is common to 4. melliculus and other species

of the genus. The long supra-marginal carina of the thorax is abbreviated behind.

24. Aolus rugipennis, (Tab. XVI. figg. 19, 19a.)

Elongate, convex, shinivg, finely pubescent ; rufous, the prothorax with a faint infuscate streak about the

middle, the scutellum piceous; the elytra black, with a broad transverse rufous median fascia, which is

widened inwards and connected along the suture and at the sides with a similarly-coloured narrow

apical patch; the under surface, the epipleure included, rufo-ferruginous; the antenne ferruginous,

the legs testaceous. Head convex, coarsely, closely punctate, with a short smooth carina on the

vertex ; the frontal carina rounded and moderately prominent; antenne very short, not reaching the hind

angles of the prothorax, joint 3 slightly longer than 2, the two together about as long as 4. Prothorax

much longer than broad, convex, narrowed in front, the sides parallel behind and slightly rounded from

the middle forwards; the hind angles strongly, acutely produced, parallel, very sharply carinate above,

the carina distant from the margin, extending forwards to beyond the middle of the prothorax, slightly

abbreviated behind, and there connected with a short, sharp, oblique ridge; the surface thickly and

rather coarsely punctate throughout. LElytra twice the length of, and narrower than, the prothorax,

gradually narrowing from the base, the apices slightly divergent at the sutural angle; finely but deeply

punctate-striate, the interstices rather convex, roughly punctured, transversely rugose and granulate

towards the base. Beneath thickly, somewhat coarsely punctate, the propleure with very coarse,

scattered, round punctures.

Length 8, breadth (of prothorax) 2} millim.

Hab. Panama, David (Champion).

One specimen, probably a female. This insect does not appear to be very closely

allied to any described form ; it belongs to Candéze’s second division of the genus.

The elytral interstices are rngose and granulate towards the base, rougher than in any

of the allied forms. 4. rugipennis is perhaps best placed near 4. circumcinctus, Cand.

The colour is probably variable.

25. Molus atriceps, (Tab. XVI. figg. 20, 20a.)

Elongate, convex, shining, finely pubescent ; ferrugineo-testaceous, the head entirely black, the prothorax with

a rather narrow elongate-oval black patch on the dise before the middle, the scutellum black ; the elytra

with a short sutural stripe in front, a broad oblique band below the base—extending inwards to the

second stria and outwards to the margin, and reaching the humerus,—a sharply angulated fascia towards

the apex, continued down the suture to the tip, and the apex itself narrowly, black; the antenna,

epipleurs, and legs testaceous, the under surface entirely ferrugineo-testaceous. Head convex, coarsely

; 3B2

372 SERRICORNIA.

punctured, with a short smooth carina on the vertex, the frontal carina rounded and not prominent ;

antenne reaching the hind angles of the prothorax, joint 3 slightly longer than 2, the two together as

long as 4. Prothorax a little longer than broad, narrowed in front, the sides rounded anteriorly and

parallel behind; the hind angles strongly produced, acute, parallel, sharply carinate above, and with a

short oblique carina extending from the tip inwards, the supra-marginal carina extending forwards to

the middle of the prothorax and slightly abbreviated behind; the surface coarsely, thickly punctate.

Elytra twice the length of the prothorax, narrowing from the middle, conjointly rounded at the apex ;

deeply and coarsely punctate-striate, the interstices convex and sparsely punctured.

Length 64, breadth 2 millim.

Hab. Guatemata, Paraiso (Champion).

One specimen, from the vicinity of the Pacific coast. Allied to 4. pulchellus, Cand. ;

but differing from it in the coarser punctuation of the head and thorax, the latter

parallel behind, immaculate at the sides, and with a much longer and sharper carina,

which is abbreviated posteriorly, the elytra black at the tip. The median vitta on the

thorax does not reach the apex, and is narrowed in front and behind. The head is

deep black.

26. Aiolus vermiculatus. (‘lab. XVI. figg. 21, 21a.)

Elongate, rather convex, shining, finely pubescent; testaceous or ferrugineo-testaceous, the head usually

infuscate along the middle; the prothorax with a broad median vitta, narrowing behind, and an abbre-

viated marginal stripe, sometimes connected, black or piceous; the scutellum usually infuscate or black ;

the elytra with two broad angulated transverse fascize—one before the middle, extending narrowly

along the suture to the base, and the other towards the apex, extending a short distance along the

suture behind—black or piceous; the legs and antennz flavo-testaceous; the under surface partly

infuscate or entirely ferrugineo-testaceous. Head convex, thickly, coarsely punctate, with a short

smooth carina on the vertex ; the frontal carina somewhat rounded and moderately prominent ; antenne

with joints 2 and 3 short, equal in length. Prothorax longer than broad, a little narrowed in front,

the sides feebly rounded anteriorly and slightly sinuate or almost straight behind; the hind angles

strongly, acutely produced, parallel or slightly divergent, sharply carinate at the sides above, the carina

extending forwards for fully one-half—in some specimens three-fourths—the length of the prothorax,

slightly abbreviated behind, and there connected with a short fine oblique ridge; the surface some-

what thickly, finely punctate, in some specimens obsoletely canaliculate down the middle behind. Elytra

rather more than twice the length of the prothorax, rapidly narrowing from about the middle, rounded at

the apex; finely and sharply punctate-striate, the interstices feebly convex and somewhat roughly punc-

tured. Beneath sparsely punctured, the punctures on the propleure and on the sides of the metasternum

much coarser than on the other parts; the prosternum almost smooth; the apical half of the fifth ventral

segment densely, minutely punctate, the punctures here and there longitudinally confluent.

Var. a. The anterior elytral fascia divided at the suture.

Var. 8. The head black, the prothorax black, with the angles testaceous, the elytral fasciee very broad.

Length 4-7, breadth 1-1$ millim. (¢ @.)

Hab. Mexico, Almolonga, Oaxaca (Hoge), Teapa in ‘Tabasco (H. H. Smith); Britis

Honpuras, Belize (Blancaneaux); Guatemata, Teleman, Senahu, San Juan, and

Chiacam in Vera Paz, Zapote (Champion); Cosra Rica (Pittier, in Ifus. Brit.) ;

Panama, Bugaba, Volcan de Chiriqui (Champion).

Found in abundance by myself at various localities. ‘The varieties described repre-

sent the extreme forms. Allied to 42. pulchellus, Cand., but easily separable from it

ZEOLUS. 373

by the very elongate, posteriorly abbreviated supra-marginal thoracic carina—in some

specimens extending fully three-fourths the length of the thorax; the thorax itself is

more finely punctured, and the elytra are more finely punctate-striate, with the

markings different. The variety « resembles 7. pulchellus in colour, but it has the

anterior black mark on the elytra transverse, not oblique. ‘The insect varies greatly in

size. The single specimens from Almolonga and Oaxaca differ from the others in

having the thoracic carina not extended so far forwards; they apparently belong to

the same species. An example from Bugaba is figured.

27. Afolus nigrinus.

Afolus nigrinus, Cand. Monogr. Elat. u. p. 342°.

Hab. Mexico, Yucatan (Pilate, in coll. Janson), Temax in North Yucatan (Gawmer).

—Cotompta !, Carthagena.

Two specimens from Yucatan, differing from others from Colombia in their smaller

size (6-64 millim. in length). They have the hind angles of the thorax rufous or

rufo-testaceous, and some of the Colombian examples are similarly coloured.

28. Afolus nigritulus. (Tab. XVI. figg. 22, 22a.)

Elongate, narrow, convex, shining, finely pubescent; black, the hind angles of the prothorax obscure testa-

ceous, the antennee clear testaceous, the legs flavous. Head moderately convex, sparsely, finely punctate ;

the frontal carina not prominent, subtruncate; antennz rather slender, extending to a little beyond the

hind angles of the prothorax, joints 2 and 3 subequal, the two together longer than 4. Prothorax convex,

as long as broad, narrowed in front, the sides rounded anteriorly and sinuate behind; the hind angles

greatly produced, divergent, sharply bicarinate—the supra-marginal carina extending forwards to beyond

the middle of the prothorax and abbreviated behind, the inner carina short and extending obliquely

inwards from the apex of the angle ; the surface sparsely, very finely punctate. Elytra convex, two and

one-third times the length of the prothorax, parallel to the middle and gradually narrowing beyond,

separately rounded at the apex; finely punctate-striate ; the interstices flat, somewhat roughly punc-

tured, the sculpture becoming rather coarsely granulate at the base.

Length 4, breadth 1 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Allied to 4. nigrinus, Cand., but only half the size of that insect,

and also much narrower and more convex; the thorax and elytra very finely, sparsely

punctate, the hind angles of the thorax divaricate. More parallel and more convex

than #. fumatus, the thorax more finely punctured and with more divergent hind

angles, the elytra more coarsely granulate at the base and separately rounded at the

apex.

29. Aolus discoideus. (Tab. XVI. figg. 23, 23 a.)

Elongate, rather convex, shining, finely pubescent; ferrugineo-testaceous, the head, a spot on either side in

front excepted, piceous or black; the prothorax with a broad discoidal black patch, extending almost

to the base and apex and narrowing behind ; the elytra with a large subquadrate patch on the disc before

the middle, not reaching the suture, and a very broad angulate transverse fascia at about one-third

374 SERRICORNIA.

from the apex, black, the suture at the base, and sometimes an oblique stripe extending from it to

the discoidal patch, piceous; the legs and antenne flavo-testaceous ; the under surface ferruginous or

ferrugineo-testaceous. Head convex, coarsely, rather thickly punctate, the frontal carina rounded and

rather prominent; antenne with joint 3 slightly longer than 2, the two together not nearly so long as 4.

Prothorax longer than broad, a little narrowed in front, the sides rounded anteriorly and sinuate behind ;

the hind angles strongly, acutely produced, slightly divergent, finely carinate at the sides above, the

carina about one-third the length of the prothorax, parallel with the margin, slightly abbreviated behind,

and connected near the apex of the angle with a short fine oblique ridge; the surface finely, somewhat

thickly punctate, and canaliculate behind. Elytra about two and one-half times the length of the

prothorax, narrowing from the middle, rounded at the apex; finely and sharply punctate-striate, the

interstices feebly convex and somewhat roughly punctured.

Length 7-9, breadth 2-24 millim.

Hab. Guatemata, Chiacam and Cahabon in Vera Paz (Champion).

Four specimens. Allied to 2. vermiculatus, but more elongate and a little larger,

the thorax with a much shorter carina and without the marginal stripe; the elytra

marked as in the var. « of that species. From 4. pulchellus it may be known by the

immaculate sides of the thorax and the transverse (not oblique) patch on the elytra

-pefore the middle, the elytra themselves more finely punctate-striate, with the inter-

stices less convex ; the supra-marginal carina of the thorax slightly abbreviated behind.

80. Afolus ovipennis. (Tab. XVI. figg. 24, 24a.)

Moderately elongate, convex, slightly shining, finely pubescent ; flavo-rufous, the prothorax with a broad

fuscous median vitta, extending nearly to the base and apex and narrowed behind; the scutellum

fuscous ; the elytra with a broad transverse patch before the middle, becoming oblique inwards and

nearly reaching the suture, and a triangular patch beyond the middle, confluent posteriorly with the

corresponding mark on the opposite elytron, black; the antenne and under surface ferruginous, the legs

flavo-testaceous. Head thickly, somewhat coarsely punctate, flattened in front, the frontal carina rather

prominent and subtruncate ; antenne with joint 3 slightly longer than 2, the two together longer than 4.

Prothorax a little longer than broad, gradually narrowing from the middle forwards, the sides parallel

behind and feebly rounded in front; the hind angles stout and greatly produced posteriorly, acute,

sharply carinate above, the carina distant from the margin, rather short, abbreviated behind, and there

almost confluent with a sharp oblique ridge extending inwards from the apex of the angle ; the surface

thickly, somewhat coarsely punctate. Elytra one and two-thirds the length of the prothorax, convex,

oval, narrowed in front and behind, broadly, conjointly rounded at the apex; finely, but very deeply

punctate-striate, the interstices convex, roughly punctured and granulate.

Length 52, breadth 1§ miilim.

Hab. Mexico, Venta de Peregrino in Guerrero (H. Hf. Smith).

One specimen only of this peculiar species has been received. It somewhat

resembles 4. pulchellus, Cand., but differs from that insect in the longer, stouter, and

non-divergent hind angles of the thorax, with the carina sharper, distant from the

margin, and abbreviated behind; the elytra shorter, almost equally narrowed in front

and behind, very obtuse at the apex, with the striz deeper, and the interstices more

convex and more roughly punctured. 4. ovipennis belongs to Candéze’s second

section of the genus, and is perhaps best placed near 4. cibaensis.

DRASTERIUS. 375

Group ELATERINI.

DRASTERIUS.

Drasterius, Eschscholtz, in Thon’s Archiv, ii. 1, p. 33 (1829) ; Candéze, Monogr. Elat. i. p. 421.

Of the thirty described species of this genus, thirteen are American. The Central-

American representatives call for no special comment; the first two (with D. dorsalis,

Say) would be almost equally well placed in Holus.

Elytra maculate.

Body moderately elongate; length 5-7 millim.. . . . . . . . «©. liwens.

Body rather short ; length 44-5 millim.. . 2. . 1. 1 1 ww ee) meridionalis.

Elytra not maculate.

Legs infuscate ; hind angles of the prothorax divergent. . . . . . «~~ simiolus.

Legs flavo-testaceous.

Hind angles of the prothorax stout, not divergent . . . . . . . flavipes.

Hind angles of the prothorax slender, divergent. . . . . . «>. dugesi.

1. Drasterius livens.

Monocrepidius livens, Lec. Trans. Am. Phil. Soc. x. p. 484°.

Drasterius livens, Lec. Trans. Am. Ent. Soc. xi. p. 4”.

Hab. Nortu America, Vallecitas and Colorado River!, California ?,—Mexico, Santa

Clara in Chihuahua, Chihuahua city, Villa Lerdo in Durango (Hége), Saltillo in

Coahuila (Dr. Palmer), Guanajuato (Dugés, in coll. Candéze).

Eight specimens, varying greatly in colour. Some of these closely approach

D. dorsalis, Say, the punctuation of the thorax being somewhat variable.

2. Drasterius meridionalis. (Tab. XVI. figy. 26, 26a.)

Short and rather broad, slightly shining, finely pubescent; the head black or piceous, testaceous in front ;

the prothorax black or piceous, with the anterior angles and a large subtriangular patch on either

side behind—sometimes extending forwards to the apex—testaceous; the scutellum infuscate; the

elytra black or piceous, with the base on either side of the scutellum, an elongate mark below the

shoulder, an elongate streak on either side of the suture at the middle, a spot on the disc a little lower

down, and a spot at the apex, testaceous; the antennze testaceous, the legs flavous, the under surface

rufo-testaceous. Head convex, thickly punctured, the frontal carina rounded and not prominent ;

antenne rather short, joints 2 and 3 equal in length, the two together longer than 4. Prothorax

scarcely as long as broad, narrowed in front, the sides rounded anteriorly and very feebly sinuate behind ;

the hind angles broadly, triangularly produced, acute, not divergent, sharply carinate at the sides above,

the carina short and joining the marginal one at the tip; the surface thickly, rather coarsely punctate,

the punctures equal in size. Scutellum convex. LHlytra twice the length of the prothorax, narrowing

from the middle, rounded at the apex; very deeply and rather coarsely punctate-striate; the interstices

convex, flatter towards the suture, roughly punctured. Beneath coarsely, closely punctate.

Length 43-5, breadth 13-12 millim.

Hab. Mexico,-San Juan Bautista in Tabasco (floge); Panama, Bugaba, Volcan de

Chiriqui, Caldera (Champion), Matachin (Dr. O. Thiéme).

376 SERRICORNIA.

Numerous examples. ‘This insect resembles the North-American olus amabilis

(Lec.); but it is broader and more robust, the thorax is parallel at the sides behind,

with the hind angles broadly triangular, and the fourth tarsal joint is very feebly

excavate above. ‘Tbe colour is variable, according to the predominance of the light

or dark colour ; in some specimens the testaceous markings are partly confluent.

3. Drasterius simiolus.

Drasterius simiolus, Cand. Monogr. Elat. 11. p. 428°; Lec. Trans. Am. Ent. Soc. xii. p. 5%.

Hab. Mrxico'?, Yautepec in Mexico, Mexico city (Hoge).

Found in plenty by Herr Hoge. The angles of the thorax are sometimes testaceous.

The locality ‘* California” is also given by Candéze !, but it requires confirmation.

4. Drasterius flavipes.

Moderately elongate, rather broad, somewhat convex, shining ; black, the anterior and hind angles of the pro-

thorax and the antenne testaceous, the legs flavo-testaceous, the under surface pitchy-black ; above and

beneath clothed with fine yellowish-cinereous pubescence. Head’ convex, thickly punctured, the frontal

carina not prominent ; antenns with joint 3 slightly longer than 2, the two together as long as 4. Pro-

thorax convex, about as long as broad, narrowed in front, the sides rounded anteriorly and very feebly

sinuate behind; the hind angles stout, strongly produced, not divergent, sharply carinate above, the

carina distant from the margin but joining it at the tip; the surface thickly, rather coarsely punctate.

Scutellum convex in front. Elytra twice the length of the prothorax, narrowing from the middle,

rounded at the apex; deeply punctate-striate, the punctures distinct ; the interstices feebly convex and

roughly punctured. Beneath coarsely, rather sparsely punctate.

Length 63-63, breadth 2-2} millim.

Hab. Mexico, Amula in Guerrero (H. H, Smith), Mexico city (Hége).

Two specimens, one of which has the elytra abnormally formed. Closely allied to

D. simiolus, Cand.; but differing from it in having the thorax almost parallel behind,

more sparsely punctured, and with the hind angles more sharply carinate, the

scutellum more tumid, the elytra more deeply and more coarsely punctate-striate, and

the under surface not so closely punctured, the legs and antenne entirely pallid. From

D. dugesi, Cand., it may be known by its stouter build, and by the wider, non-divergent,

very sharply carinate hind angles of the thorax.

5. Drasterius dugesi. |

Drasterius dugesi, Cand. Ann. Soc. Ent. Belg. 1889, p. 99 (Elat. Nouv. iv. p. 33)?.

Hab. Mexico, Guanajuato } (Sallé).

Allied to D. simiolus, but less convex; the hind angles of the thorax and the

antenne are testaceous, the legs flavous. We have received a single specimen of this

species, agreeing with the type communicated by Dr. Candéze.

ELATER.—MEGAPENTHES. 377

ELATER.

Elater, Linneus, Syst. Nat. 12th edit. i. 2, p. 651 (1767) ; Candéze, Monogr. Elat. ii. p. 436.

This well-known genus contains a large number of species in the Palearctic and

Nearctic regions, and is also represented in Australia. One Mexican species was

described by Dr. Candéze in 1859, and it is the only one known as yet from within

our limits.

1. Elater arctus. (Tab. XVII. fig. 1, ¢.)

Elater arctus, Cand. Monogr. Elat. ii. p. 4657.

Hab. Mexico, Jacale, Cordillera de Anahuac in Vera Cruz (Sallé 1).

Three specimens of this species are contained in the Sallé collection. The relatively

very short thorax gives it a peculiar facies.

MEGAPENTHES.

Megapenthes, Kiesenwetter, Naturg. Ins. Deutschl. iv. 2, p. 8353 (1858) ; Canddze, Monogr. Elat.

ii. p. 491 (part.) ; Cat. Méthod. Elat. p. 95.

Dr. Candéze in his catalogue enumerates eighty-seven species of this genus, seventeen

of which are American. Fifteen are now recorded from within our limits, all but

two of which appear to be new. Of several of these single (female) examples only

have been obtained. ‘The species here added agree in the following characters :—front

convex, margined, distinctly separated from the anterior margin of the head; prosternal

sutures not channelled in front ; posterior coxal plates abruptly and angularly widened

(in some species very broadly) inwards, or (as in I. fusiformis) feebly widened inwards

and extending rather broadly to the lateral margin of the body; tarsi simple, the

middle and hind pairs very long and slender in some of the species. MU. fusiformis

will probably have to be separated from the genus eventually, as it lacks one of the

essential characters of the group Elaterini.

Coxal plates angularly widened inwards, becoming narrower outwards.

Antenne with the third joint as long as the fourth; hind angles of the

prothorax bicarinate . . .. . . . - + « . . Species 1-3.

Antenne with the third joint not or very little ‘longer than the second.

Hind angles of the prothorax bicarmate . . . . . . . =. . . . Species 4-7.

Hind angles of the prothorax unicarinate . . . see . Species 8-14.

Coxal plates rather broad throughout, feebly widened inwards ; antenne with

the third joint very short ; hind angles of the prothorax unicarinate . . Species 15.

1. Megapenthes furvus.

Elongate, narrow, subparallel, rather convex, shining, thickly pubescent ; black or brownish-black, the head

in front and the anterior margin and hind angles of the prothorax ferruginous or obscure ferruginous,

BIOL. CENTR.-AMER., Coleopt., Vol. IIT. Pt. 1, October 1895. 3¢

378 7 SERRICORNIA.

the elytra brown or pitchy-brown, with the epipleure obscure ferruginous; beneath piceous or obscure

reddish-brown; the antenne ferruginous, the legs testaceous. Head convex, thickly punctured; antennz

(2) short, scarcely reaching the hind angles of the prothorax, rather slender, joints 3 and 4 equal, 3

more than twice as long as 2. Prothorax a little longer than broad, very gradually narrowing from

the base forwards, the sides feebly rounded in front; the hind angles long and acute, divergent,

bicarinate; the surface thickly and finely punctate, with the interspaces smooth and shining, more or

less distinctly canaliculate behind. Elytra moderately long, subparallel to the middle, and narrowing

thence to the apex, the apices separately rounded; rather deeply punctate-striate, the interstices feebly

convex and thickly punctured, subgranulate towards the base. Beneath thickly punctate ; posterior

coxal plates moderately and angularly widened opposite the point of insertion of the femora.

Length 7-84, breadth 13-2 millim. ( 2.)

Hab. Muxico, Cordova (Sallé) ; Nicaragua, Chontales (E. M. Janson).

Three examples, apparently all females. This species resembles J/. cincticollis in

general shape, but differs from it in having the third joint of the antenne as large as

the fourth ; the hind angles of the thorax ferruginous, divergent, and with the outer

carina longer and well defined; the elytral interstices more sparsely punctate. More

parallel than MW. bicarinatus, the third joint of the antennee longer, the thorax more

finely punctured. J. furvus also approaches the European WM. tibialis, Lac.

2. Megapenthes brasilianus. (Jab. XVII. fige. 2,¢ ; 2a, antenna.)

Megapenthes brasilianus, Cand. Elat. Nouv. ii. p. 66 (1881) *.

Elongate, rather convex, shining, pubescent; testaceous or ferrugineo-testaceous, the head (the labrum

excepted), the tips of the hind angles of the prothorax, the scutellum, the suture of the elytra partly or

entirely, and the body beneath (the propleurze excepted), black or piceous; the antennz and legs

testaceous. Head moderately convex, thickly, somewhat coarsely punctate; antenne short, about

reaching the hind angles of the prothorax in the male, a little shorter in the female, joint 3 as stout as,

and slightly longer than, 4. Prothorax convex, longer than broad, narrowing from the base forwards,

subconical in the male, a little rounded at the sides in the female; the hind angles strongly produced,

divergent, bicarinate ; the surface thickly, moderately finely punctate, with the interspaces smooth and

shining, shallowly canaliculate behind. Elytra moderately elongate, rapidly narrowing from the base,

separately rounded at the apex; deeply punctate-striate, the interstices slightly convex and somewhat

thickly punctured. Beneath thickly punctured ; posterior coxal plates angularly and moderately widened

opposite the point of insertion of the femora.

Length 73-11, breadth 2-23 millim. (¢ 9.)

Hab. Nicaracua, Chontales (Janson); Panama, Bugaba (Champion).—Bnrazit, Rio

Janeiro and Bahia ?.

Five specimens, the males agreeing perfectly with the type, kindly communicated by

Dr. Candéze. In all of them the suture of the elytra is narrowly infuscate, a character

not. mentioned in his description. ‘The basal margin of the elytra is sometimes

black, as well as the scutellum and the tips of the hind angles of the thorax.

3. Megapenthes rubigineus.

Elongate, rather convex, shining, pubescent; ferruginous or brownish-ferruginous, the antenne black, the

two basal joints sometimes obscure ferruginous, the legs piceous or black, with the knees and tarsi

ferruginous ; beneath rufous or obscure rufous, the abdomen sometimes infuscate at the sides and apex.

MEGAPENTHES. 379

Head convex, thickly and somewhat coarsely punctate; antenne short, in the male about reaching

the hind angles of the prothorax, a little shorter in the female, the joints from the third considerably

widened in the male, 3 more than twice the length of 2, and slightly longer than 4. Prothorax convex,

longer than broad, narrowing from the base forwards, the sides rounded in front; the hind angles acute,

directed a little outwards, bicarinate; the surface thickly, moderately finely punctate, with the interspaces

smooth and shining, canaliculate behind. Elytra elongate, narrowing from a little below the base,

separately rounded at the apex; deeply punctate-striate, the interstices slightly convex and somewhat

thickly, finely punctate. Beneath rather sparsely and finely punctured ; posterior coxal plates angularly

and moderately widened opposite the point of insertion of the femora, narrowing outwards,

Length 74-10, breadth 2-23 millim. (¢ 2.)

Hab. Nicaracua, Chontales (Belt); Panama, Volcan de Chiriqui (Champion).

Eight specimens. Allied to YW. brasilianus, Cand., but rather narrower ; the elytra

more gradually narrowing from the base, the antenne black, the upper surface

uniformly ferruginous, the femora and tibie piceous or black, the prosternum rufous,

the under surface more sparsely punctured, the head more convex, &c. The antenne,

as in MW. brasilianus, are short in both sexes. Dr. Candéze has examined one of the

specimens and he informs me that the insect is unknown to him.

4. Megapenthes cinnamomeus.

Elongate, rather shining, pubescent ; reddish-brown, the prothorax piceous or brown, with the base and hind

angles ferrugineo-testaceous, the antenne and legs testaceous. Head moderately convex, closely punc-

tured ; antenne ( ¢) rather slender, nearly half the length of the body, joint 3 short, slightly longer than

2, the two together not longer than 4. Prothorax feebly convex, longer than broad, rapidly and obliquely

narrowing from the base forwards, a little rounded at the sides in front; the hind angles long, strongly

divergent, acute, finely bicarinate ; the surface thickly punctured. LElytra moderately long, narrowing

from about the middle, feebly truncate at the apex, the sutural angle sharp; punctate-striate, the inter-

stices flat or feebly convex, thickly punctured and subgranulate. Beneath thickly punctured ; posterior

coxal plates broadly and angularly widened opposite the point of insertion of the femora.

Length 83-9, breadth 2-2} millim. (<6.)

Hab. Guatemata, Sinanja in Vera Paz and Capetillo (Champion).

Two male examples, differing a little inter se in the strength of the elytral sculpture.

This species is closely allied to the Cuban MW. opaculus, Cand., from which it may be

known by the different form of the antenne (in UY. opaculus the third and fourth joints

are equal, and the organs themselves in the male are much longer and stouter), the

much more finely punctured thorax, the more sparsely punctured elytral interstices, &c.

The long antenne in the male, with short third joint, the more divergent hind angles

of the thorax, &c., distinguish MZ. cinnamomeus from M. brasilianus and M. rubigineus.

The outer carina of the thorax is very fine, but distinct.

5. Megapenthes cincticollis. (Tab. XVII. fig. 4, 2.)

Elongate, narrow, subparallel, rather convex, shining, thickly pubescent ; the head (the labrum excepted) black,

the prothorax black, with the base broadly (excepf at the sides) and the anterior angles flavo-testaceous,

the elytra pitchy-brown ; the under surface piceous, the propleure and prosternum partly testaceous ; the

antennee testaceous, the legs flavous. Head convex, sparsely punctate; antenne ( @ ) short, not extending

beyond the hind angles of the prothorax, rather slender, joint 3 a little longer than 2, the two together

302

380 SERRICORNIA.

slightly longer than 4. Prothorax longer than broad, convex, subparallel, the sides a little rounded and

converging in front; the hind angles acute, feebly bicarinate, not divergent ; the surface rather sparsely,

finely punctate, with the interspaces smooth and shining, canaliculate behind. Elytra moderately

elongate, of the same width as the prothorax, subparallel to about the middle and narrowing thence to

the apex, the apices conjointly rounded ; finely and shallowly punctate-striate, the interstices flat, roughly

punctured, and subgranulate. Beneath thickly punctured, the prosternum and propleure sparsely punc-

tate ; posterior coxal plates very broadly and angularly widened opposite the point of insertion of the

femora.

Length 63-73, breadth 12-17 millim. (?.)

Hab. Mexico, Jalapa (Hége).

Two specimens, both females. Closely allied to the North-American WW. rufilabris

(Germ.), but with relatively longer elytra, which are not marked with yellow at the

base. The general shape is more elongate. The thorax is broadly flavo-testaceous at

the base; the outer carina is so faint as to be scarcely distinguishable. The insect is

unknown to Dr. Candéze.

6. Megapenthes bicarinatus.

Moderately elongate, feebly convex, rather dull, pubescent; ferruginous, the head infuscate in the middle

behind, the prothorax with the disc in great part infuscate and the base and hind angles broadly testa-

ceous, the elytra testaceous, with the base on either side of the scutellum more dilute in colour, the legs

and antenne testaceous. Head convex, closely punctured ; antenne (@ ) short, reaching slightly beyond

the hind angles of the prothorax, slender, joint 3 a little longer than 2, the two together scarcely longer

than 4. Prothorax rather longer than broad, very gradually narrowing from the base forwards, the sides

rounded in front; the hind angles acute and slightly divergent, finely bicarinate; the surface closely

and rather coarsely punctured, with the narrow interspaces dull. Elytra moderately long, narrowing

almost from the base, rounded at the apex ; punctate-striate, the interstices flat and somewhat roughly

punctured, subgranulate towards the base. Beneath thickly punctured; posterior coxal plates broadly

and angularly widened opposite the point of insertion of the femora.

Length 74, breadth 2 millim. (2.)

Hab. Guatemaa, Mirandilla (Champion).

One female example. Larger and broader than the corresponding sex of M/. sobrinus,

the thorax more parallel behind and with the hind angles distinctly bicarinate. This

insect closely resembles an Agriotes, but the head and coxal plates are formed as in

Megapenthes.

7. Megapenthes mexicanus.

Moderately elongate, feebly convex, shining, pubescent ; ferruginous or reddish-brown, the prothorax with

the base broadly, the apical margin, and sometimes a median line testaceous or ferrugineo-testaceous,

the antenne ferruginous, the legs testaceous. Head moderately convex, thickly punctured ; antenne (2 )

short, scarcely extending beyond the hind angles of the prothorax, joint 3 a little longer than 2, the two

together about as long as 4. Prothorax rather longer than broad, gradually narrowing from the base

forwards, the sides rounded in front; the hind angles acute and slightly divergent, finely bicarinate; the

surface thickly punctured, with the interspaces smooth and shining. Elytra moderately long, narrowing

from about the middle, rounded at the apex ; punctate-striate, the interstices feebly convex and somewhat

roughly punctured, subgranulate towards the base. Beneath thickly punctured ; posterior coxal plates

broadly and angularly widened opposite the point of insertion of the femora.

Length 63-77, breadth 13 millim. ( 9.)

MEGAPENTHES, 381

Hab. Mxxico, Jalapa (Hége), Yucatan (Pilate, in coll. Janson).

Two female specimens. ‘The Yucatan example, which is in a mutilated condition,

differs from the one from Jalapa in its ferruginous colour, and in having the elytral

interstices more distinctly granulate ; it is labelled Steatoderus rufus, Pilate. MM. mexi-

canus is a near ally of M. bicarinatus, but may be known from it by the less coarsely

punctured thorax, the interspaces between the punctures smooth and shining, the

elytra more parallel, more shining, and with coarser sculpture. This is one of several

closely allied species of which very few examples are available for examination.

8. Megapenthes sobrinus.

Moderately elongate, feebly convex, rather dull, pubescent; the head obscure ferruginous, the prothorax

piceous or pitchy-brown, with the base and hind angles broadly flavo-testaceous and the apex ferruginous,

the elytra brown, with the base on either side of the scutellum more dilute in colour; the under surface

ferruginous; the legs and antenne testaceous. Head moderately convex, closely, somewhat coarsely

punctate; antenne rather slender, in the male about half the length of the body, in the female only

reaching the hind angles of the prothorax, joint 3a little longer than 2, the two together not longer

than 4, Prothorax longer than broad, narrowing from the base forwards in both sexes; the hind angles

acute, divergent, finely unicarinate ; the surface closely and rather coarsely punctured, with the narrow

interspaces dull, obsoletely canaliculate behind. lytra moderately long, gradually narrowing from the

base, rounded at the apex ; deeply and somewhat coarsely punctate-striate, the interstices slightly convex,

thickly punctate, and subgranulate. Beneath thickly punctured ; posterior coxal plates broadly and

angularly widened opposite the point of insertion of the femora.

Length 6-68, breadth 14-13 millim. (¢ 92.)

Hab. Panama, Bugaba (Champion).

Two males and one female. This insect somewhat resembles J. opaculus, Cand.,

from Cuba; but it is much smaller and less elongate, the third joint of the antenne is

very little longer than the second (it is as long as the fourth in J. opaculus), &c. The

insect is unknown to Dr. Candéze.

9. Megapenthes asperatus.

Moderately elongate, feebly convex, dull, thickly pubescent; the head black, ferruginous in front, the

prothorax black, with the base broadly and the apex narrowly testaceous, the elytra pitchy-brown ; the

under surface in great part piceous; the antenne ferruginous, the legs testaceous. Head convex, closely,

rather coarsely punctate ; antennz (2 ) short, about reaching the hind angles of the prothorax, joint 3

a little longer than 2, the two together scarcely longer than 4. Prothorax longer than broad, very

gradually narrowing from a little before the base to the apex, the sides slightly rounded in front; the hind

angles acute, not divergent, unicarinate; the surface closely impressed with very shallow, umbilicate

punctures, the narrow interspaces opaque, feebly canaliculate behind, Elytra moderately long, gradually

narrowing from about the basal third, conjointly rounded at the apex ; deeply and rather finely punctate-

striate, the interstices feebly convex, roughly punctured and subgranulate. Beneath closely punctured ;

posterior coxal plates strongly and angularly widened opposite the point of insertion of the femora.

Length 64, breadth 1# millim. ( 2.)

Hab. Guatemata, Teleman in Vera Paz (Champion).

One female example. Closely allied to MW. sobrinus, from the same sex of which

882 SERRICORNIA.

it may be known by its opaque and more closely punctured thorax, the hind angles of

which are not divergent, and the more granulate elytral interstices. Asin M. sobrinus,

there is an indication of a faint outer carina within the hind angles of the thorax.

M. asperatus has much the facies of a small Ludius.

10. Megapenthes longitarsis.

Elongate, rather narrow, feebly convex, subopaque, thickly pubescent ; black or brownish-black, the head in

front, and the prothorax with the base and the anterior and hind angles testaceous or ferruginous, the

scutellum ferruginous or pitchy-brown, the elytra pitchy-brown or obscure reddish-brown ; the under

surface in great part piceous; the antenne fusco-ferruginous, the legs testaceous. Head convex, thickly,

finely punctate; antenne slender, in the male about half the length of the body, in the female extending

very little beyond the hind angles of the prothorax, joint 3 short, slightly longer than 2, the two together

not longer than 4, Prothorax much longer than broad, moderately convex, very gradually narrowing

from the base forwards, the sides a little rounded in front; the hind angles acute, slightly divergent,

sharply unicarinate; the surface very finely, rather sparsely punctate, with the interspaces minutely

reticulate and dull, obsoletely canaliculate behind. LElytra elongate, of the same width as the prothorax

at the base, and gradually narrowing thence to the apex, the sides a little rounded, the apices obtuse ;

finely and shallowly punctate-striate, the interstices almost flat, thickly punctured and subgranulate.

Beneath thickly punctured, the prosternum and propleure more sparsely punctate ; posterior coxal plates

very broadly and angularly widened opposite the point of insertion of the femora. Legs elongate, slender,

the four hinder tarsi distinctly longer than the tibiz in the male.

Length 73-104, breadth 13-24 millim. (¢ 9.)

Hab. GuatEMALa, Capetillo (Champion); Costa Rica, Volcan de Irazu (Rogers) ;

Panama, Volcan de Chiriqui (Champion).

Found in numbers by myself at Capetillo. This insect varies a good deal in size and

colour. The thorax has the base and a large triangular patch on either side within

the hind angles testaceous, and sometimes there is a short median line of the same

colour behind. The elytra in one example are brownish-testaceous, with the sides and

suture darker. Some of the males are smaller, narrower, and more parallel than

others. MM. longitarsis may chiefly be known from the allied forms by its elongate

shape and long legs. ‘The insect is unknown to Dr. Candéze.

11. Megapenthes melanotoides. (Tab. XVII. figg. 3, 2; 3a, antenna; 34,

coxal plate.)

Very elongate, rather narrow, shining, sparsely pubescent ; the head black, ferruginous in front, the prothorax

piceous, with the anterior angles, the base, and a short median line behind ferrugineo-testaceous, the

elytra obscure reddish-brown, with the epipleure ferruginous ; the under surface in great part piceous ;

the antenne obscure ferruginous, the legs testaceous. Head convex, thickly punctured; antenne (2)

slender, extending to a little beyond the hind angles of the prothorax, joint 3 short, slightly longer than

2, the two together not so long as 4. Prothorax much longer than broad, very gradually narrowing

from the base forwards, the sides a little rounded in front; the hind angles acute, slightly divergent,

sharply unicarinate ; the surface thickly, finely punctate, the punctures becoming still finer and more

scattered on the disc, the interspaces shining, distinctly canaliculate behind. Elytra slightly narrower

than the prothorax at the base, very elongate, gradually narrowing from the base, rounded at the apex 5

finely and lightly punctate-striate, the interstices almost flat, thickly punctured, and subgranulate.

MEGAPENTHES. 383

Beneath thickly punctured ; posterior coxal plates very broadly and angularly widened opposite the point

of insertion of the femora.

Length 124, breadth 2? millim. (@.)

Hab. Guatemata, Cerro Zunil (Champion).

One female specimen. ‘This species is perhaps nearest allied to I. longitarsis, but

it has the elytra much more elongate, with the sides straighter and more gradually

narrowed from the base, the upper surface more shining, the interspaces on the thorax

not opaque, &c.

12. Megapenthes badius. (Tab. XVII. fig. 5, 2.)

Elongate, moderately convex, shining, thickly pubescent; brown, the head infuscate behind, the prothorax with

the base broadly, the apex narrowly, and a narrow median line indeterminately flavo-testaceous; the

under surface ferruginous ; the abdomen infuscate ; the antenne and legs testaceous. Head moderately

convex, thickly punctured ; antennz ( 2 ) rather slender, extending to a little beyond the hind angles of

the prothorax, joint 3 slightly longer than 2, the two together about as long as 4. Prothorax longer than

broad, subparallel behind, the sides a little rounded and converging from about the middle forwards; the

hind angles greatly produced, not divergent, unicarinate ; the surface thickly, finely punctate, with the

interspaces smooth and shining, canaliculate from the middle to the base. Elytra moderately elongate,

considerably narrower than the prothorax at the base, subparallel in front, widest a little before the middle,

and rapidly narrowing thence to the apex, the apices rounded; finely but rather deeply punctate-striate,

the interstices feebly convex, thickly punctured, and subgranulate. Beneath somewhat closely punctate ;

posterior coxal plates broadly and angularly widened opposite the point of insertion of the femora.

Length 83, breadth 2 millim. ( 9.)

Hab. GuateMata, Panajachel 5000 feet (Champion).

One female specimen. This species is not very closely allied to any of the other

Central-American forms described here. It has the thorax considerably wider at the

base than the elytra, with the hind angles not divergent and unicarinate, the elytra

narrowing from about the middle to the apex and also slightly narrowed anteriorly.

From MM. melanotoides it may be known by the much shorter elytra, which are more

rounded at the sides.

13. Megapenthes conicicollis.

Very elongate, moderately convex, shining, pubescent ; obscure reddish-brown, the hind angles of the prothorax

and the elytra reddish-brown, the antenne and legs testaceous. Head moderately convex, closely punc-

tured; antenne slender, extending to a little beyond the base of the elytra, joint 3 slightly longer than 2,

the two together not longer than 4. Prothorax a little longer than broad, subconical, rapidly narrowing

from the base forwards, distinctly sinuate on either side before the middle ; the hind angles stout, diver-

gent, unicarinate; the surface thickly, finely punctate, the punctures finer and more scattered on the

disc, with the interspaces smooth and shining, canaliculate behind. LElytra elongate, subparallel to the

middle, and narrowing thence to the apex, the apices subtruncate, with the sutural angle rather sharp ;

punctate-striate, the interstices feebly convex and rather sparsely, finely punctate, subgranulate towards

the base. Beneath thickly punctured; posterior coxal plates very broadly and angularly widened

opposite the point of insertion of the femora.

Length 13, breadth 3 millim. (9?)

Hab. Mexico, Chiapas (Sad/é).

384 SERRICORNIA.

One mutilated example only, without abdomen, has been received of this species ; it

is very distinct from any of the other Megapenthes here described, and it seems

advisable to name it. In the form of the thorax it approaches the Cuban UW. teniatus,

Cand. Much larger, longer, and more shining than WM. cinnamomeus; the thorax

more rapidly narrowing from the base, without trace of an outer carina within the hind

angles, and less closely punctured, the marginal carina in great part visible from

above; the elytral interstices smoother. The insect cannot be identified with the

description of MZ. athoides.

14. Megapenthes athoides.

Megapenthes athoides, Cand. Monogr. Elat. ii. p. 499°.

‘ Fusco-niger, nitidus, breviter fulvo-pubescens ; prothorace a basi sensim angustato, sparsim punctato, postice

canaliculato, murgine postica angulisque posticis acutis, carinatis, divaricatis, rufescentibus; elytris

punctato-striatis, interstitiis granulatis, brunneo-testaceis.—Long. 10, lat. 2 millim.”

Hab. Mexico}.

The hind angles of the thorax are stated! to be strongly unicarinate, the thorax

itself very gradually narrowing from the base forwards and sparsely punctured; the

antenne in the male long and thin. We have not received a Megapenthes answering

to this definition. The type is not contained in the collection of the late E. W. Janson

nor in that of Dr. Candéze.

15. Megapenthes fusiformis. (Tab. XVII. figg. 6, ¢; 6a, antenna; 66,

coxal plate; 6 ¢, genitalia.)

Moderately elongate, convex, subfusiform, shining, finely and rather sparsely pubescent ; varying in colour from

flavo-rufous to brown or reddish-brown, the head and prothorax (the hind angles excepted) often infuscate ;

the antenne piceous or brown, with the three basal joints paler; the legs testaceous ; the under surface

piceous or pitchy-red, the prosternum and propleure rufous or flavo-rufous. Head moderately convex,

thickly punctured; antenne short, extending to a little beyond the hind angles of the prothorax in the

male, still shorter in the female, rather slender, joints 2 and 3 very short, equal, 4 longer than 2 and 3

united. Prothorax convex, slightly longer than broad, narrowing from the base forwards, the sides

rounded anteriorly ; the hind angles acute, divergent, sharply and obliquely unicarinate; the surface very

finely, rather sparsely punctate, with the interspaces smooth and shining, obsoletely canaliculate behind.

Elytra moderately long, convex, narrowing from the base, the sides a little rounded, the apices obtuse ;

finely punctate-striate, the interstices feebly convex and sparsely, very finely punctate. Beneath sparsely,

very finely punctate; posterior coxal plates moderately broad throughout, becoming slightly wider

inwards, but without distinct dilatation opposite the point of insertion of the femora. Legs slender.

Length 62-8}, breadth 13-23 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Numerous examples of both sexes. In the form of the coxal plates this species differs

from all the allied forms, and it should perhaps be treated as generically distinct from

Megapenthes. M. fusiformis resembles M. rubigineus, but it is less elongate, more convex,

and more fusiform. The third joint of the antenne is very small, not larger than the second.

MEGAPENTHES.—PHYSORHINUS. 385

The coxal plates extend rather broadly to the outer margin of the body, and are very

little widened inwards. Dr. Candéze is of opinion that the insect cannot be satisfac-

torily separated from Megapenthes.

Group PHYSORHINI.

PHYSORHINUS.

Physorhinus, Eschscholtz, in Silberm. Rev. Ent. iv. table (1836) ; Candéze, Monogr. Elat. ii. p. 387,

t. 3. fig. 7.

Of the fourteen described Physorhini (two of which are here treated as varieties of

P. distigma), five inhabit Central America *, whence three others are now added;

Anchastus frontalis, Horn, from New Mexico, also belongs to it. Physorhinus is

confined to the New World, and it is one of the most characteristic genera of Elateride

in Tropical America. It has the posterior coxal plates enormously developed, the

subtriangularly dilated median portion being nearly or quite as wide as the first ventral

segment. The sutures between the prosternum and propleure are widely separated for

the greater part of their length, rather abruptly converging behind, and channelled

in front. ‘The middle coxe are deeply excavate externally for the reception of the

base of the middle femora, the upper portion forming a broad plate. The third

joint of the antenne is very short. The third joint of the tarsi is strongly lamellate,

the fourth joint small. The curious pallid coloration of the whole or part of the head is

common to all the species, many of which have spotted elytra. The maculation of the

elytra shows very little sign of variation, except in P. erythrocephalus and P. distigma ;

the latter is a common Central-American species, and also varies enormously in size.

These insects are chiefly found in forest-clearings, by beating the branches of fallen

trees.

The Central-American species may be identified by the annexed table :—

a. Hind angles of the prothorax bicarinate.

a’, Apical margins of the elytra denticulate.

a', Elytra obsoletely striate.

a’, Elytra each with two large flavous spots on the disc—one before,

the other beyond the middle . ... . . - . . erythrocephalus.

ob", Elytra each with a flavous or reddish spot or streak towards the

apex, sometimes extending forwards along the outer part of the

disc to the base, and sometimes obsolete . . . . . . . . distigma.

* Physorhinus galapagoensis, Cand, (nec Waterh.), presumably from the Galapagos Islands, is stated by

Candéze (Monogr. Elat. ii. p. 395) to occur on the corresponding coast of Colombia and also in Guatemala.

Further evidence is required before it can be admitted into our list. The insect in question, if the specimen

in the British Museum is correctly named (which I believe to be the case, as it agrees with the description),

cannot possibly be retained in Physorhinus, it having the sutures between the prosternum and propleure

formed as in Anchastus, i. e. narrowly separated throughout.

+ The name frontalis being preoccupied in the genus, it is here changed, at the author’s request, to fusculus.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1895. 3D

386 SERRICORNIA.

6". Elytra with a sutural stria only, the others obliterated ; each elytron

with two flavous spots—one, small, marginal, before the middle,

the other, larger, towards the apex . . . . «© «© «© + + + « Quadrinotatus.

b'. Apical margins of the elytra feebly serrate or subcrenulate.

cl", Elytra obsoletely striate ; brownish-testaceous, with the suture and

a transverse median fascia infuscate. . . . . . . . + +s eruciatus.

d". Elytra distinctly striate.

ce", Elytra elongate, usually brownish-testaceous or rufo-castaneous . sturmi.

dl", Elytra moderately elongate, pitchy-brown . . . frontals.

6. Hind angles of the prothorax unicarinate ; apical margins of the elytra

denticulate.

e". Elytra obsoletely striate, brownish-testaceous; antenne very elon-

gate, rather slender . . . longicornis.

f". Hlytra with a sutural stria only, the others obsolete, dark reddish-

brown, each with three yellow spots ; antennze moderately elongate,

rather stout. ©. 2. . 2. 2. 2. wee eee ee) Stellatus.

1. Physorhinus erythrocephalus.

Elater erythrocephalus, Fabr. Syst. Eleuth. ii. p. 241°.

Physorhinus erythrocephalus, Cand. Monogr. Elat. ii. p. 889°.

Kilater flaviceps, Perty, Del. Anim. Artic. Bras. p. 21, t. 5. fig. 2°.

Physorhinus flaviceps, Blanch. in d’Orbigny’s Voyage dans l’Amér. Mérid., Ins. p. 186, t. 8. fig. 7‘.

Hab. Panama, Bugaba (Champion).—Souta Americal, Colombia, Venezuela,

Guiana, Brazil *, Amazons, Bolivia 4.

Five specimens of this well-known Tropical-American species were captured by

myself at Bugaba.

2. Physorhinus distigma. (Tab. XVII. figg. 7, 9; 8, var. cephalicus, 3;

9, var. B, 3.)

Physorhinus distigma, Cand. Monogr. Elat. ii. p. 390’.

Hab. Mexico1, Cordova (Sallé), Jalapa (Hoge), Atoyac in Vera Cruz (H. H. Smith) ;

GuaTEMALA, Teleman and Purula in Vera Paz (Champion); Nicaragua, Chontales

(Belt); Panama, Bugaba, Volcan de Chiriqui, David (Champion).—CotomBia! ; Braziu.

Var. a. The flavous or reddish spot on the disc of each elytron towards the apex more elongate, in some

specimens extending forwards to the middle. (Fig. 8.)

Physorhinus cephalicus, Cand. Aun. Soc. Ent. Belg. 1889, p. 97 (Elat. Nouv. iv. p. 81)”.

Hab. Mexico *, Cerro de Plumas, Tapachula (Hége), Teapa in Tabasco (H. H. Smith) ;

British Honpuras, Belize (Blancaneaux); Guatemaua, Teleman, La Tinta, San Juan

Senahu, Chacoj, Tamahu, Panima, Purula, and San Gerénimo in Vera Paz, El

Tumbador, El Reposo, Las Mercedes, Pantaleon, Zapote (Champion), Coban ( Conradt) ;

Nicaracua, Chontales (Belt, Janson).

PHYSORHINUS. 387

Var. 8. The elytra each with a reddish stripe on the outer part of the disc extending from the base to the

apex and widening posteriorly. (Fig. 9.)

Hab. Guatemata, Zapote (Champion).

Var. y. The elytral markings entirely obliterated.

Physorhinus sericeus, Cand. Monogr. Elat. ii. p. 892°.

Hab. Mexico, Cordova (Sallé?), Cerro de Plumas, Jalapa (Hége); Guatemana, El

Reposo (Champion).

I have examined the types of the three insects described by Candéze, and there can

be no doubt, judging from our very long series of specimens, that they are extreme forms

of one variable species. As he remarks1, P. distigma chiefly differs from P. erythro-

cephalus in the obliteration of the large flavous ante-median spot on the disc of each

elytron. P. cephalicus is the commonest form in Central America. Of the variety 6

three specimens were obtained at Zapote. Of P. sericeus, the type of which has the

elytra somewhat abnormally formed, so as to appear flattened, eight examples are

before me; it occurred at El Reposo with P. cephalicus and intermediate forms. The

variation in size is very great—from 84-15 millim. in length, and from 2}~44 millim.

in breadth. Upwards of one hundred examples have been examined, showing great

variation in the form of the elytral spots; the largest of these specimens are from

Belize and Coban, the smallest from Chacoj in the Polochic valley. The insect chiefly

inhabits the “ tierra caliente.” It is equally common on the Atlantic and Pacific slopes

of Guatemala. We figure a female of the typical form, from Bugaba; a large male of

the var. cephalicus, from Belize; and a male of the var. 6, from Zapote.

3. Physorhinus quadrinotatus. (Tab. XVII. figg. 10, ¢; 10a, hind angles

of prothorax; 10 0, genitalia.)

‘Elongate, somewhat fusiform, rather convex, shining, thickly clothed with long, coarse, fulvous pubescence ;

blackish-brown or obscure reddish-brown, with the head, a spot on the margin of the elytra a little below

the base, and another—larger and rounded—spot on the outer part of the disc at about one-third from the

apex, yellow or orange-yellow, the hind angles of the prothorax and the basal and apical margins of the

elytra sometimes rusty-red; the antenne ferruginous, the legs brownish-testaceous. Head thickly, finely

punctate ; antennee rather stout; and extending to about the basal fifth of the elytra in the male, a little

shorter in the female, joint 3 very short, slightly longer than 2. Prothorax broader than long, rapidly

narrowing from the middle forwards, the sides parallel at the base; the hind angles acutely produced,

sharply bicarinate, the inner carina oblique, the outer one straight and close to the margin; the surface

finely and rather closely punctate. LElytra moderately elongate, rapidly narrowing from a little below

the base, the sides slightly rounded, the apical margins feebly denticulate; finely and somewhat thickly

punctate, the sutural stria only distinct, the others obsolete. Beneath thickly punctured; the median

dilated portion of the posterior coxal plates sharply angulate behind.

Length 94-12, breadth 23-33 millim. (d 2.)

Hab. Nicaraava, Chontales (Belt) ; Panama, Bugaba, Volcan de Chiriqui (Champion).

Seven examples. ‘This insect is closely allied to P. erythrocephalus, but differs from

3D2

388 SERRICORNIA.

it in having the anterior spot on the elytra small and placed close to the lateral

margin, the elytra themselves more rapidly narrowing from the base and with the striz

(the sutural one excepted) obsolete, aud the median dilated portion of the coxal plates

more acutely produced. The allied P. stellatus differs from P. guadrinotatus in having

a small additional spot on the disc of each elytron near the base and the outer thoracic

carina obliterated. P. bolivianus, Cand., and P. seanotatus, Steinh., are allied South-

American forms. The insect is unknown to Dr. Candéze.

4, Physorhinus cruciatus. (Tab. XVII. fig. 11.)

Elongate, rather convex, shining, thickly clothed with long fine yellowish pubescence ; pitchy-brown, the head

flavous, the elytra brownish-testaceous, with the suture and a transverse median fascia rather narrowly

and indeterminately pitchy-brown, the abdomen in part and the antenne reddish-brown, the legs

brownish-testaceous. Head thickly punctured; antenne extending to about the basal fifth of the elytra,

joint 3 very short, slightly longer than 2. Prothorax about as long as broad, convex, gradually and

arcuately narrowing from near the base, the sides parallel behind; the hind angles acute, bicarinate, the

inner carina oblique, the outer one straight; the surface closely, finely punctate. Elytra elongate,

narrowing from about the basal third, the apical margins feebly serrate ; thickly, finely punctate and

obsoletely striate, the striee becoming obliterated towards the base, the sutural stria sharply defined.

Beneath closely punctured; the median dilated portion of the posterior coxal plates obtusely angulate

behind.

Length 13, breadth 34 millim.

Hab. Mexico, Tapachula in Chiapas (/6ge).

One example, probably a male. This insect approaches P. erythrocephalus ; but it

is more parallel, the thorax is much less narrowed in front, the elytra are more finely

and more closely punctured, with the apical margins feebly serrate, and the pubescence

of the upper surface is not so coarse. The elytra are brownish-testaceous, with the

suture and a transverse median fascia rather narrowly infuscate.

5. Physorhinus sturmi.

Physorhinus sturmii, Germ. Zeitschr. fir Ent. ii. p. 439°; Cand. Monogr. Elat. i. p. 393°.

Hab. Mexico !2 (Sallé, ex coll. Sturm), Pinos Altos in Chihuahua (Buchan-Hepburn),

Toluca and Parada (Sallé), ? Jalapa (Hoge).

The elytra in this species are rufo-castaneous, with the suture usually piceous; in

some specimens, however, the dark colour extends to the greater part of the surface.

The margins of the elytra are very feebly crenulate at the apex.

Thirteen examples have been examined.

6. Physorhinus frontalis.

Physorhinus frontalis, Cand. Monogr. Elat. ii. p. 894 (nec Horn) ’.

Hab. Muxico, Presidio (Forrer), Yucatan ! (Gawmer).

I have seen ten examples of this species, varying considerably in size. It closely

PHYSORHINUS.—ANCHASTUS. 389

resembles P. distigma, var. sericeus, but is a little less elongate, the thorax is more

closely punctured, and the elytra are more parallel, with the margins feebly serrate at

the apex.

7. Physorhinus longicornis. (Tab. XVII. figg. 12, ¢; 12a, antenna.)

Elongate, somewhat fusiform, moderately convex, shining, thickly clothed with fine yellowish pubescence ;

black, the head pale flavous, the elytra, except at the base in some specimens, brownish-testaceous, the

abdomen rufo-testaceous, the antenne and legs piceous, the femora sometimes obscure testaceous. Head

thickly punctured ; antenne rather slender, extending to beyond the middle of the elytra in the male,

a little shorter in the female, joint 3 slightly longer than-2, the two together very much shorter than 4.

Prothorax transverse, rapidly and obliquely narrowing from a little before the base to the apex, the sides

parallel behind; the hind angles acute, obliquely unicarinate; the surface thickly, finely punctate.

Elytra moderately elongate, rapidly narrowing from the base, the apical margins finely denticulate ; some-

what thickly, finely punctate and obsoletely striate, the sutural stria fine but distinct. Beneath thickly

punctured ; the median dilated portion of the posterior coxal plates sharply angulate behind.

Length 93-11, breadth 24-3 millim. (¢ 9.)

Hab. GuTEMALA, Cerro Zunil 4000 to 5000 feet (Champion).

Five specimens, from the vicinity of the coffee-plantation of Las Nubes, on the

Pacific slope. JP. longicornis differs from all the described species of the genus in its

elongate, comparatively slender antenne, these organs extending to beyond the middle

of the elytra in the male sex. It resembles P. sturmi in colour, but differs from that

insect in the unicarinate hind angles of the thorax, the less parallel elytra, the apical

margins of which are denticulate, &c.

8. Physorhinus stellatus. (Tab. XVII. figg. 13, 9; 13a, hind angles of

prothorax.)

Physorhinus stellatus, Cand. Monogr. Elat. ii. p. 391, t. 3. fig. 67.

Hab. Panama, Volcan de Chiriqui (Champion).—Cotomsta !.

This handsome species is not uncommon in Chiriqui. It may be known from the

allied forms by the three spots on each elytron, and by the unicarinate hind angles of

the thorax, the usual long supra-marginal carina being almost entirely obliterated. In

the nearly related P. sernotatus, Steinh., from Colombia, the small additional spot on

each elytron is placed at the middle of the base, and the hind angles of the thorax

are bicarinate.

ANCHASTUS.

Anchastus, Leconte, Trans. Am. Phil. Soc. n. ser. x. p. 459 (1853); Candéze, Monogr. Elat. ii.

p- 397 (part.).

Brachycrepis, Leconte, loc. cit. p. 460; Kiesenwetter, Naturg. Ins. Deutschl. iv. 2, p. 349.

Crepidotritus, Leconte, Class. Col. N. Am. p. 167 (1861).

Monelasmus, Candéze, Monogr. Elat. iv. p. 832 (1863) (part.).

Anchastus, as adopted here, includes the majority of the species referred to it by

390 SERRICORNIA.

Candéze (A. hilaris and its allies being excluded), and with these I am compelled to

associate three out of the four members of his genus Monelasmus*, the differences

becoming evanescent in the new species here described. Physorhinus galapagoensis,

Cand. (nec Waterh.), also probably belongs to it. In Monelasmus augusti and

M. moratus (and no doubt in VM. jamaice also), as in some of the new species here

described, the frontal margin or carina is obliterated in the middle, but the front is in

all cases raised above the anterior margin of the head and separated from it by a

narrow space. ‘The species here referred to Anchastus agree in the following parti-

culars :—Front separated from the anterior margin of the head by a rounded or sub-

angular ridge, which is sometimes obliterated in the middle; the sutures between

the prosternum and propleure narrowly separated, channelled or not in front; posterior

coxal plates abruptly and subquadrangularly widened inwards, in some species acutely

triangularly dilated near the middle; third tarsal joint rather broadly lamellate beneath,

the fourth joint small. The third joint of the antenne is usually as large as the

fourth, but in some of the species it is not longer than the second.

The channelling of the prosternal sutures (a character used to separate Hlater

from Megapenthes) varies according to the species. Monelasmus is placed by

Candéze in his ‘ Ludiites’; but in Zudius and its allies the front is not separated from

the anterior margin of the head, and the third tarsal joint is simple. With three

exceptions, the whole of the Central-American species are brightly coloured, many of

them having the thorax or elytra maculated. All appear to be rare. The genus,

which is very widely distributed, includes some of the most interesting Elateride of

our region. ‘The Central-American representatives may be grouped by their structural

characters thus :— |

a. Hind angles of the prothorax obliquely unicarinate ; elytra separately

rounded at the apex; coxal plates broadly widened inwards, and mode-

rately wide outwards.

a’. Antenne with the third and fourth joints equal; prosternal sutures

not or feebly channelled in front.

a". Front completely margined . . . 2...) wl, Species 1-4.

6". Front incompletely margined ne Species 5-10.

6’. Antenne. with the third joint a little shorter than the fourth 3 pro-

sternal sutures channelled in front ; front completely margined. . . Species 11.

6. Hind angles of the prothorax longitudinally unicarinate; antenne with

the third joint a little shorter than the fourth; front incompletely mar-

gined; prosternal sutures channelled in front ; elytra conjointly rounded

at the apex; coxal plates moderately widened inwards, becoming very

marrow outwards. . . . . . . we Species 12.

* The name Monelasmus can perhaps be retained for M. guyanensis, Cand., that insect having the head

differently formed :—The antennal cavities are large and deep, and limited internally by an oblique ridge,

which extends upwards and nearly meets the margined, subangular, prominent frontal plate.

ANCHASTUS. 391

c. Hind angles of the prothorax not carinate ; antennz with the third joint a

little shorter than the fourth ; front completely margined; prosternal

sutures not channelled in front; elytra separately rounded at the

apex; coxal plates broadly widened inwards, becoming very narrow

outwards . 2... 1. we ee ee ee ee ee «Species 18.

d. Hind angles of the prothorax bicarinate ; front completely margined ; pro-

sternal sutures deeply channelled in front; elytra conjointly rounded at

the apex; coxal plates broadly widened inwards, triangularly dilated

near the middle, and becoming very narrow outwards.

ce’, Antenne with the third and fourth joints equal . . . . . . . . Species 14, 15.

a’. Antenne with the third joint very short, not longer than the second . Species 16.

1, Anchastus sanguineus, (Tab. XVII. fig. 14, 3.)

3. Elliptic, broad, rather convex, moderately shining; sanguineous, the labrum, the antenne, a broad median

vitta on the prothorax, not quite reaching the base, the scutellum, the legs, and the body beneath, the

pro- and mesosternum and the propleurz excepted, deep black; above and beneath thickly pubescent, the

pubescence partaking of the ground-colour. Head thickly punctured, convex, declivous in front, the front

separated by a short space from the anterior margin and feebly carinate ; antenne moderately long, the

joints from the third broadly flattened and serrate, 3 and 4 equal, 2 very small. Prothorax broader than

long, the sides rapidly converging from the base, a little rounded in front; the hind angles greatly

produced, divergent, sharply and obliquely unicarinate; the surface closely, finely punctate. Elytra as

wide as the prothorax at the base, arcuately narrowing from about the middle, a little flattened on the

disc and explanate at the sides, the apices separately rounded ; coarsely and deeply punctate-striate, the

interstices convex and thickly punctured, subgranulate towards the base. Beneath finely, rather closely

punctate ; prosternal sutures not channelled in front.

@. Var. The labrum, the body beneath, the coxew, and trochanters rufo-testaceous, the median vitta on the

prothorax obliterated, the scutellum with the apex only black; the antenne less broadly dilated ; the

prothorax more rounded at the sides and less narrowed in front; the frontal carina less distinct in the

middle.

Length 9, breadth 37 millim.

Hab. Mexico, Vera Cruz (coll. Janson: 2 ), Teapa in Tabasco (H. H. Smith: 3).

This very fine species either varies greatly in the colour of the under surface &c., or

the sexes differ in this respect. Unfortunately a single example only of each sex has

been received. It has no near ally, so far as I am aware, and the insect is unknown to

Dr. Candéze.

2. Anchastus ruficollis, (Tab. XVII. fig. 15, 3.)

Elongate-oval, rather convex, shining ; deep black, the prothorax rufous, the propleure rufo-testaceous ; thickly

pubescent, the pubescence on the prothorax and elytra partaking of the ground-colour, that on the head

and on great part of the under surface fulvo-cinereous. Head thickly, finely punctate, convex, declivous

in front, the front (as viewed from beneath) sharply margined; antenne() extending to a little beyond

the hind angles of the prothorax, the joints from the third moderately widened and serrate, 3 and 4 equal

in length. Prothorax about as long as broad, longitudinally convex, subparallel to near the middle and

thence arcuately narrowing to the apex; the hind angles acute, strongly produced, not divergent, sharply

and obliquely unicarinate, the carina short; the surface very finely, sparsely punctate, the punctuation

becoming closer towards the sides and apex, canaliculate behind. Elytra comparatively short, arcuately

narrowing from about the middle, separately rounded at the apex; finely and shallowly punctate-striate,

392 SERRICORNIA.

the interstices quite flat throughout and thickly punctured. Beneath thickly punctured; prosternal

sutures feebly channelled in front.

Length 7}, breadth 2} millim. (2.) |

Hab. Mexico, Cerro de Plumas (Hége).

Two specimens. This insect resembles some of the similarly-coloured species of the

genus later, but it may be at once distinguished from them by the strongly lamellate

third tarsal joint. The North-American A. bicolor, Lec., is an allied form, differing

from the present insect in the long and almost straight thoracic carina, the red

head, &c.

8. Anchastus discoideus. (Tab. XVII. fig. 16, 3.)

Moderately elongate, feebly convex, opaque; black, the prothorax rufo-testaceous, with a black patch on the disc,

the elytra with a broad marginal testaceous stripe, extending from the base to near the apex and widening

a little in front, the legs brownish, the femora infuscate in the middle, the propleure testaceous; thickly

pubescent, the pubescence yellowish-cinereous, fuscous on the dark portion of the elytra, a line down the

suture in one specimen excepted. Head densely punctured, moderately convex, margined in front ;

antenne about half the length of the body in the male, shorter in the female, the joints from the third

moderately widened and serrate, 3 and 4 equal in length. Prothorax about as long as broad, gradually

narrowing from the base in the male, broader and more rounded at the sides in the female; the hind

angles acute, strongly produced, slightly divergent in the male, obsoletely and obliquely unicarinate, the

carina short; the surface densely and rugulosely punctured. Elytra narrowing from the middle in the

female, more attenuate in the male, separately rounded at the apex; rather deeply punctate-striate, the

interstices feebly convex, closely and rugulosely punctured. Beneath closely punctured; prosternal

sutures not channelled in front.

Length 6-63, breadth 13-2 millim. (¢ 9.)

Hab. Mxxico, Acapulco in Guerrero (Hége).

One pair. Differs from all the species here described in the dull rugulose thorax,

the elytral interstices also being rugulose. The female is considerably broader and

more parallel than the male. ‘The male has a line of flavous pubescence along the

suture, of which there is no trace in the female. ‘The discoidal spot on the thorax is

variable in size. ‘The elytra are coloured as in A. flavovittatus, except that the flavous

vitte extend outwards to the lateral margins at the base. A. discoideus approaches

A. flavomaculatus ; both are unknown to Dr. Candéze.

4. Anchastus circumcinctus. (‘lab. XVII. fig. 17, 2.)

Oblong-oval, rather broad, moderately convex, flattened above, shining ; the antennee and head black, the latter

with a small rufous spot on either side in front; the prothorax flavo-testaceous, with a large oval black

patch on the disc extending to the base and apex; the scutellum and elytra black, the latter with a

transverse reddish mark at the base and a testaceous marginal stripe extending to near the apex; the

prosternum in front and the propleure yellow, the abdomen, except at the sides and apex, in great part

ferruginous, the rest of the under surface black; the legs black, the femora in great part, the coxe, and

the trochanters testaceous ; above and beneath thickly pubescent, the pubescence on the elytra fuscous

except along the suture and on the marginal vitta, where it is flavous, that on the under surface yellowish-

cinereous. Head closely punctured, convex, declivous in front, the front rounded, finely margined, and

separated from the anterior margin by a narrow space; antennz short, scarcely reaching the hind angles

ANCHASTUS.. 393

of the prothorax, the joints from the third widened and serrate, 3 and + equal, 2 very small. Prothorax

about as long as broad, paraliel behind, the sides rounded and converging from the basal third; the hind

angles greatly produced, acute, obliquely unicarinate ; the surface closely, finely punctate, feebly canali-

culate behind. Elytra narrower than the prothorax, narrowing from the base, separately rounded at the

apex ; punctate-striate, the punctures closely placed, the interstices flat on the disc and feebly convex

at the sides, closely punctate. Beneath closely, finely punctate ; prosternal sutures obsoletely channelled

in front.

Length 10, breadth 34 millim. (9.)

fab. Wonrvuras (Sailé).

One specimen. This insect, at first sight, appears to be nothing more than a colour-

variety of A. (Monelasmus) augusti; but it differs from that species in having the front

rounded and completely margined (in A. augusti the front is more angular and not

margined in the middle), the thorax less densely punctured and with an oval black

patch on the middle of the disc, the lateral vitta of the elytra extending to the margin

(in A. augusti it is placed on the ninth interstice), and the femora and under surface

not entirely black. This species forms a connecting-link between A. augusti and the

more typical members of the genus Anchastus.

5. Anchastus augusti. (Tab. XVII. fig. 18, 2, var.)

Monelasmus augusti, Cand. Monogr. Elat. iv. p. 338, t. 4. figg. 15, 15a’.

Hab. Mexico (Sallé, in coll. Chevrolat 1; coll. Janson, ex Parry'); British Honpuras

(coll. Janson); GuaTEMALA, Panzos in Vera Paz (Conradt).

I have seen three specimens of this species, including one of the types contained in

the Janson collection. The thorax in the type has two very large, elongate, black

marks, these being shorter and more rounded in the example from Panzos, from which

our figure is taken. The propleure are sometimes entirely flavous. The submarginal

flavous stripe varies in length. The single thoracic carina is sharply defined and

very oblique. The head is declivous in front, the frontal plate subangular and

separated from the anterior margin by a narrow space, the carina obliterated in the

centre.

6. Anchastus diversus. (Tab. XVII. fig. 19, 2.)

Elongate-oval, rather convex, slightly shining ; deep black, the head, prothorax, a large patch on the basal

half of the elytra, obliquely narrowing from opposite the scutellum to the lateral margin, and the pro-

pleure rufous or orange-red ; thickly pubescent, the pubescence partaking of the ground-colour above

and brownish beneath. Head finely and closely punctured, convex, declivous in front, the front separated

from the anterior margin by a narrow space, the carina obliterated in the middle; antenne about reaching

the hind angles of the prothorax, the joints from the third moderately widened and serrate, 3 and 4 equal

in length. Prothorax longitudinally convex, as long as broad, parallel behind, gradually and arcuately

narrowing from about the middle forwards; the hind angles acute, strongly produced behind, sharply

and obliquely unicarinate ; the surface closely and very finely punctured, deeply canaliculate behind.

Elytra moderately long, slightly narrower than the prothorax at the base, narrowing from a little below

the shoulder, separately rounded at the apex; shallowly punctate-striate, the interstices flat and closely

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1895. 35

394 SERRICORNIA.

punctured. Beneath closely, the prosternum and propleure sparsely, punctured ; prosternal sutures not

channelled in front. ‘

Length 83-10, breadth 23-33 millim. (@.)

flab. Nicaracva, Chontales (Belt).

Two examples, one of which is a female, the other perhaps a male. This insect

approaches A. (Monelasmus) augusti, Cand., but it is very differently coloured, and has

the front a little more raised anteriorly and more distinctly separated from the anterior

margin of the head.

7. Anchastus melanurus. (Tab. XVII. figg. 20, 2; 20a, hind angles of

prothorax. )

Elongate-oval, moderately convex, feebly shining ; luteous, the base of the elytra a little paler, the antenne,

the scutellum, a large patch at the apex of the elytra, the under surface, the propleurée excepted, and the

legs, deep black ; above and beneath thickly pubescent, the pubescence on the upper surface partaking of

the ground-colour, that on the under surface, except at the sides of the abdomen, fulvous. Head thickly

punctured, convex, declivous in front; the front separated from the anterior margin by a narrow space,

the carina indistinct in the middle; antennew about reaching the hind angles of the prothorax in the male,

a little shorter in the female, the joints from the third moderately widened and serrate, 3 and 4 equal,

2 very short. Prothorax longitudinally convex, as long as broad, narrowing from the base forwards, the

sides rounded anteriorly ; the hind angles strongly, acutely produced, not divergent, obliquely unicarinate ;

the surface very finely and closely punctured. LElytra nearly as wide as the prothorax at the base,

narrowing from the basal third, the apices separately rounded; rather coarsely punctate-striate, the

interstices flat on the disc, feebly convex at the sides, closely, very finely punctate. Beneath closely,

finely punctate, the prosternum more sparsely punctured; prosternal sutures not channelled in

front.

Length 8-10, breadth 23-34 millim. (¢ 9.)

Hab. Panama, Bugaba (Champion).

Two specimens. Allied to A. diversus, but differing from it in the more coarsely

punctate-striate elytra, the black patch on which is confined to the apical third, and the

less parallel thorax.

8. Anchastus seminiger. (Tab. XVII. fig. 21.)

Elongate-oval, moderately convex, rather shining; deep black, the head and prothorax rufo- or sanguineo-

testaceous, the elytra with the third interstice at the base and a spot at the shoulders beneath, the pro-

and mesosternum, the labrum, and palpi testaceous, the ventral segments 1-4, except at the sides, and

the propleure rufo-testaceous, the antenne and legs, the base of the femora excepted, deep black; above

and beneath thickly sericeo-pubescent, the pubescence on the upper surface partaking of the ground-colour,

that on the under surface in great part fulvous. Head closely, finely punctate, convex, declivous in front ;

the front separated from the anterior margin by a narrow space, the carina obsolete in the middle; antenne

extending a little beyond the hind angles of the prothorax, the joints from the third broadly dilated and

serrate, 3 and 4 equal in length, 2 very small. Prothorax about as long as broad, gradually and arcu-

ately narrowing from the base forwards; the hind angles strongly produced behind, not divergent, rather

obtuse at the tip, feebly and obliquely unicarinate; the surface closely, very finely punctate, canalicnlate

behind. LElytra slightly narrower than the prothorax, gradually narrowing from a little below the

shoulders, flattened on the disc, separately rounded at the apex; rather coarsely punctate-striate, the

punctures of each stria very distinct, the interstices flat and closely, very finely punctate. Beneath

ANCHASTUS. 395

closely and finely, the prosternum and propleure sparsely, punctate; prosternal sutures not channelled

in front, .

Length 93-10, breadth 3 millim.

fab. Panama, Bugaba (Champion).

Two specimens, probably males. This insect is a close ally of A. candezei, Steinh.,

from Canoas, Colombia, the type (¢ ) of which is before me, but differs from it in the

shorter and more oval elytra, with the flavous stripe on the third interstice abbreviated

and the strie more coarsely punctured, the rufo-testaceous head, the more feebly

carinate hind angles of the thorax, the much shorter antenne, the blacker under

surface (in A. candezei the fifth ventral segment only is black), &c.

9, Anchastus maculicollis, (Tab. XVII. fig. 22, 2.)

Moderately elongate, rather convex, slightly shining; black, the head obscure testaceous in front; the prothorax

with the sides from the base to near the apex very broadly rufo-testaceous (leaving a large subtriangular

black patch on the anterior part of the disc, extending laterally to near the margin, and posteriorly,

in the form of a median vitta, to the base), and the anterior margin and hind angles flavo-testaceous ;

the elytra each with two narrow fusco-testaceous stripes extending downwards from the base—one on

the third interstice, short, and another on the ninth interstice, extending to near the middle; beneath

rufo-testaceous, the metasternum broadly black at the sides, the prosternum yellow ; the antenne and legs,

the base of the femora excepted, deep black ; above and beneath thickly pubescent, the pubescence yellowish

beneath and on the light-coloured parts of the prothorax above, for the rest blackish-brown. Head

closely, finely punctate, convex, declivous in front; the front separated from the anterior margin by a

narrow space, the carina distinct at the sides only ; antenne (¢ ) short, not extending beyond the hind

angles of the prothorax, the joints from the third rather broadly widened and serrate, 8 and 4 equal in

length, 2 very small. Prothorax broader than long, narrowing from the base forwards, the sides a little

rounded anteriorly ; the hind angles strongly produced, acute, slightly divergent, feebly and obliquely

unicarinate ; the surface closely, finely punctate, canaliculate behind. Elytra moderately long, subparallel

to about the middle and arcuately narrowing thence to the apex, the apices separately rounded ; deeply

punctate-striate, the punctures of each stria very distinct and closely placed, the interstices flat on the

disc, feebly convex at the sides, finely and closely punctate. Beneath closely and finely, the prosternum

and propleure sparsely, punctate ; prosternal sutures not channelled in front.

Length 84, breadth nearly 23 millim. (Q.)

Hab. Panama, Volcan de Chiriqui 2500 feet (Champion).

One example. This insect is nearly allied to A. seminiger, and I thought, at first, it

might bea variety of the female of that species, but, judging from the sexual differences

in the other members of the genus, such is evidently not the case. It has a shorter

thorax, with more acute hind angles, more parallel elytra, &c.

10. Anchastus bilineatus, (Tab. XVII. fig. 23.)

Moderately elongate, rather convex, shining; the head with a large triangular flavous frontal patch ex-

tending to the margin, black at the sides behind ; the prothorax flavous, with a broad black median vitta

extending from the base to near the apex, narrowly divided down the middle in front and with each

portion curving outwards to the lateral margin (so as to form a large reversed subcampanuliform patch),

the flavous lateral portions marked with a rosy-red patch in fresh specimens; the scutellum and elytra

black, the latter with a rather broad flavous stripe extending down the third and fourth interstices to

near the apex, and the ninth interstice with a short testaceous stripe at the base; beneath flavous or

3H 2

396 SERRICORNIA.

flavo-testaceous, with the sides of the metasternum broadly, a broad submarginal band extending down

the first three ventral segments, and the fifth segment almost entirely, black, the propleurse with a rufous

patch ; the antennew and legs black, the base and apex of the femora, the base of the tibie, and the

apical joint of the tarsi, testaceous ; above and beneath thickly pubescent, the pubescence in great part

yellowish- or fulvo-cinereous, sometimes obscure fuscous on the dark portions of the elytra. Head

thickly, finely punctate, convex, declivous in front; the front a little raised above the anterior margin,

the carina obsolete in the centre; antennae reaching to a little beyond the hind angles of the prothorax,

slightly shorter in the female, the joints from the third rather broadly dilated and serrate, 3 and + equal

in length. Prothorax rather broader than long, convex, gradually and arcuately narrowing forwards,

parallel at the base; the hind angles strongly produced behind, obsoletely and obliquely unicarinate ;

the surface closely, finely punctate, canaliculate behind. Elytra moderately long, narrowing from a little

below the base, separately rounded at the apex; shallowly and rather finely punctate-striate, the

punctures of each stria distinct, the interstices flat, closely, very finely punctate. Beneath closely, the

prosternum and propleure sparsely, punctured; prosternal sutures not channelled in front.

Length 9-103, breadth 23-3 millim. (3 2.)

flab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Five specimens. ‘This peculiar species is allied to 4. maculicollis, A. seminiger,

A. candeze?, &c. ‘The rosy-red lateral marks on the upper and under surfaces of the

thorax are only visible in fresh specimens; the black discoidal patch is shaped somewhat

as in A. maculicollis, except that it is divided down the middle in front and is curved

downwards at the sides. The head is coloured as in many species of Physorhinus. The

oblique thoracic carina is almost obsolete. From A. maculicollis, apart from colour, it

differs in the less parallel and more shallowly striate elytra, the punctures of the strie

less closely placed and the interstices flatter, and also in the less transverse thorax.

11. Anchastus flavovittatus, (Tab. XVII. fige. 24, 9; 25, ¢,var.a; 26,2,

var. 3.)

Elongate-oval, moderately convex, shining; the head and antenne black; the prothorax flavous, with a large

transversely cordate patch in front, a rather broad marginal stripe extending from the base to the middle,

which extends inwards anteriorly, and the base in the centre, black, the disc between these marks rufous ;

the scutellum and elytra black, the latter with a broad submarginal flavous stripe extending from the base

to near the apex; the under surface, the propleure excepted, and legs black, the base of the femora

sometimes paler; above and beneath thickly pubescent, the pubescence variable in colour—in some

specimens blackish-brown on the dark portions of the prothorax and elytra, and in others yellowish-

cinereous,—that on the under surface yellowish-cinereous, sometimes blackish-brown at the sides and apex

of the abdomen. Head closely, finely punctate, the front sharply margined; antenne reaching consider-

ably beyond the hind angles of the prothorax in the male, shorter in the female, moderately stout, joint 3

a little shorter and narrower than 4, twice as long as 2. Prothorax convex, about as long as broad,

parallel behind, narrowing from the basal third in the male, more rounded at the sides in the female; the

hind angles strongly produced, acute, obliquely unicarinate; the surface thickly, finely punctate, deeply

canaliculate behind. Elytra gradually narrowing from about the basal third, separately rounded at the

apex ; punctate-striate, the interstices feebly convex and thickly punctured. Beneath thickly punctured ;

prosternal sutures channelled in front.

Var. a. The prothorax rufo-testaceous, with the black marginal mark obliquely narrowing forwards, and not

extending inwards anteriorly, the anterior black patch more extended laterally. (Fig. 25.)

Var. 6. The prothorax rufous, with the tips of the hind angles and the basal margin in the centre black.

(Fig. 26.)

Length 53-73, breadth 12-24 millim. (¢ 9.)

3.8

ANCHASTUS. 397

Hab. Mexico, Oaxaca, Tapachula (f6ge); Guatemata, Panzos, Teleman, and San

Juan in Vera Paz, Zapote (Champion); Nicarava, Chontales (Belt).

Eight specimens :—three (2) of the typical form, from Chontales, Teleman, and

Panzos; four (¢) of the var. #, from Tapachula, San Juan, and Zapote; and one ( 9 )

of the var. 8, from Oaxaca. ‘The description, as regards colour, is chiefly taken from a

beautifully preserved specimen from Chontales. In the varieties the yellow and rufous

portions of the thorax are not clearly defined, being more or less merged into a general

rufous or rufo-testaceous tint. The third joint of the antenne is a little smaller than

the fourth. ‘The prosternal sutures are channelled in front.

12. Anchastus moratus, (Tab. XVII. figg. 27; 27, hind angles of pro-

thorax.)

Monelasmus moratus, Cand. Monogr. Elat. iv. p. 334°.

Hab. Mexico, San Martin Tuxtla (Sallé+), Yucatan (coll. Janson); GuatemMaa, San

José (Champion).—AntILLEs, Grenada (H. H. Smith).

The six examples of this species before me vary slightly in the extent of the black

discoidal patch on the thorax, this being sometimes very narrowly divided down the

middle so as to form two sinuous stripes. The thorax is almost square, being very

little narrowed in front; the carina is short, almost straight, and (as viewed from above)

close to the margin. The third joint of the antenne is a little shorter and narrower

than the fourth, and twice the length of the second. ‘The single example obtained by

myself was found on the Pacific coast. A. ¢terminatus, Cand., from the island of

Guadaloupe, is an allied species ; it has the head similarly formed.

13. Anchastus flavomaculatus. (Tab. XVII. fig. 28, ¢.)

Elongate, rather narrow, feebly convex, slightly shining; black, the head with a small spot in front, and the

prothorax with the lateral margins at the apex and a large subtriangular patch on either side behind,

orange-yellow ; the elytra with a pale flavous submarginal stripe, extending down the seventh and eighth

interstices to the middle and dilated inwards at the base; the under surface black, the abdomen pitchy-

brown ; thickly pubescent, the pubescence yellowish-cinereous, blackish on the dark portions of the elytra.

Head closely punctured, moderately convex, margined in front; antennz elongate, reaching nearly to the

middle of the elytra, the joints from the third moderately widened and serrate, 3 slightly shorter than 4,

2 very small. Prothorax as long as broad, subconical, rapidly and obliquely narrowing from about the

basal third to the apex; the hind angles narrow, acute, slightly divergent, not carinate; the surface

thickly, finely punctate, feebly canaliculate behind. LElytra moderately long, as wide as the prothorax at

the base, parallel to the middle and gradually narrowing thence to the apex, the apices separately rounded ;

finely but rather deeply punctate-striate, the interstices slightly convex, closely and subrugulosely punc-

tured. Beneath thickly, the propleure and prosternum sparsely, punctured; prosternal sutures not

channelled in front.

Length 7, breadth 2 millim. (¢.)

Hab. GuateMa.a, Sinanja in Vera Paz (Champion).

One example. ‘This species differs from all the allied forms in the narrow, subconical

thorax, the hind angles of which are not carinate. ‘The antenne are unusually

398 SERRICORNIA.

elongate; the front is a little less convex than usual in Anchastus, but it is limited

anteriorly by a distinct carina; the elytral interstices are closely and somewhat rugu-

losely punctured, so as to appear dull. The insect is unknown to Dr. Candéze.

14. Anchastus forticornis.

Oblong-oval, moderately convex, shining, thickly and rather coarsely pubescent ; pitchy-brown, the front of

the head, the basal and apical margins of the prothorax, the scutellum, the basal margin of the elytra,

the epipleure, and the under surface obscure ferruginous, the antenne ferrugineo-testaceous, the legs

testaceous. Head closely punctured, convex, sharply margined in front; antenne stout, half the length

of the body, feebly serrate, joints 3 and 4 equal, 2 very short. Prothorax a little broader than long,

parallel behind, gradually narrowing from about the basal third forwards; the_ hind angles strongly

produced, acute, bicarinate, the outer carina long and near the margin, the inner one shorter and oblique ;

the surface thickly and somewhat coarsely punctured. Elytra the width of the prothorax at the base,

arcuately narrowing from about the basal third, conjointly rounded at the apex ; rather coarsely punctate-

striate, the interstices feebly convex at the sides, flat on the disc, and somewhat roughly punctured.

Beneath closely, rather coarsely punctate; prosternal sutures deeply channelled in front ; posterior coxal

plates broadly dilated inwards, and becoming exceedingly narrow outwards, the median portion acutely

triangularly produced and reaching as far as the first ventral suture.

Length 5, breadth 13 millim. (¢.)

Hab. GuateMaa, Chacoj in Vera Paz (Champion).

One male specimen, found in the Polochic valley. In the form of the posterior

coxal plates this small species approaches the genus Physorhinus; but differs from it in

having the sutures between the prosternum and propleure narrowly separated, the third

joint of the antenne as long as the fourth, the head shorter and more declivous, &c.

The antenne are stout and half the length of the body.

15. Anchastus lateritius.

Moderately long, rather depressed, shining, thickly pubescent ; reddish-brown, the prothorax with the base

broadly and indeterminately testaceous, the under surface ferruginous, the legs testaceous. Head closely

punctured, convex, sharply margined in front; antenne slender, extending to a little beyond the hind

angles of the prothorax, joints 3 and 4 equal, 2 very short. Prothorax slightly broader than long, almost

parallel behind, gradually narrowing from about the basal third forwards ; the hind angles acute, strongly

produced, bicarinate, the outer carina long and near the margin, the inner one shorter and oblique; the

surface thickly punctured. Elytra moderately long, as wide as the prothorax at the base, parallel to the

middle and narrowing thence to the apex, the apices conjointly rounded; punctate-striate, the interstices

almost flat and somewhat sparsely punctured. Beneath closely punctured ; prosternal sutures deeply

channelled in front; posterior coxal plates abruptly and subtriangularly dilated inwards to half the width

of the first ventral segment, becoming exceedingly narrow outwards. Legs sleuder.

Length 4%, breadth 12 millim.

Hab. GuatemaLa, Mirandilla (Champion).

One specimen, probably a female, found on the Pacific slope. This is another species

without near ally. It approaches A. tenuistriatus, but is smaller, narrower, and less

convex, the thorax is longer, the third joint of the antenne is as long as the fourth,

the elytral striz are distinctly punctured throughout, &c. A. difficilis, Fleut., from

Venezuela, somewhat resembles A. lateritius; but differs from it in the unicarinate hind

angles of the thorax, the shorter third joint of the antenne, &c.

ANCHASTUS.—ANCHASTOMORPHUS. 399

16. Anchastus tenuistriatus. (Tab. XVIII. figg. 1, 1 a, antenna.)

Oblong-oval, rather broad, convex, shining, thickly pubescent; pitchy-brown, the head in front, and the

prothorax with the anterior margin and the base obscure testaceous, the elytra with the base on either

side of the scutellum and the dilated anterior portion of the epipleurew testaceous; the antenne brown,

the legs testaceous. Head closely and rugulosely punctured, convex, sharply margined in front; antenne

slender, extending considerably beyond the base of the elytra, joints 2 and 3 short, equal, the two

together scarcely so long’as 4. “Prothorax broader than long, almost parallel behind, the sides rounded

and converging from the basal third forwards; the hind angles acute, narrow, greatly produced, bicari-

nate, the inner carina short and oblique, the outer one long and near the margin; the surface thickly

_and shallowly punctured, more sparsely so on the middle of the disc behind. Elytra moderately long,

slightly widening to about one-fourth from the base and then arcuately narrowing to the apex, the apices

conjointly rounded ; very finely and distinctly striate, the striee towards the sides and apex only with fine

punctures, the interstices convex and finely, sparsely punctate. Beneath rather sparsely punctured ; pro-

sternal sutures deeply channelled to near the middle ; posterior coxal plates exceedingly broadly dilated

inwards, and becoming very narrow outwards.

Length 5%, breadth 2 millim. .

Hab. Mexico, Oaxaca (fHége).

One specimen, probably a female. This peculiar species differs in many respects from

all others of the genus here described. It has the thorax short, with the hind angles

bicarinate ; the antenne slender, with the third joint very short; the elytra with very

fine, sharply defined striz, which are punctured towards the base and sides only; the

posterior coxal plates exceedingly broadly dilated inwards (almost as wide as in

Physorhinus); the prosternal sutures channelled to near the middle. The insect is

unknown to Dr. Candéze.

ANCHASTOMORPHUS.

Prosternum moderately wide, subparallel ; prosternal sutures double, widely separated for the greater part of

their length, obliquely and rather abruptly converging behind, and with a deep channel between them ;

posterior coxal plates broadly quadrangularly dilated inwards ; head deeply sunk into the prothorax,

declivous, convex, arcuately margined in front, the front separated from the anterior margin; third

tarsal joint with a long, narrow lobe beneath, the fourth joint very small; the other characters as in

Anchastus.

This genus is proposed for numerous small Tropical-American species included in

Anchastus by Dr. Candéze; A. hilaris, A. phedrus, and A. suturalis, Cand., may be

taken as the types. It includes also A. trisignatus, A. apicalis, and A. niger, Steinh. ;

A. grouvellei and A. longipennis, Fleut.; and, probably, A. ornatus, A. seminalis,

A. pygmeus, A. posticus, and A. fasciatus, Cand. In the species enumerated below

the thorax has a long supra-marginal carina only, and the third joint of the antennz is

a little longer than the second ; these characters, however, are to be found in some of

the true Anchastus. The prosternal sutures are formed as in the genus Physorhinus.

Our four species may be separated thus :—

Rufo-testaceous, the elytra with a triangular scutellar patch (in some specimens

extending to the humeri) and a median fascia, these markings connected

at the suture, and sometimes an ante-apical mark, black . . . . . . phedrus.

400 SERRICORNIA.

Black ; the elytra testaceous, with a large ante-apical black patch . . . . apicalis.

Black ; the elytra with the suture, and sometimes a humeral patch and an

oblique post-median fascia also, testaceous, in some specimens with a broad

oblique post-median fascia only testaceous. . . . . . . . « suturalis.

Black ; each elytron usually with two flavous spots—one at the shoulder, the

other post-median. 2. 2. 1. 1. we eee ee ew eee Queadriguttatus.

1. Anchastomorphus phedrus. (Tab. XVIII. fig. 2.)

Anchastus phedrus, Cand. Monogr. Elat. ii. p. 401'.

Anchastus cruz-ngra, Fleut. Ann. Soc. Ent. Belg. 1895, p. 170?.

Hab. Mexico, Chilpancingo in Guerrero (Hége), Teapa in Tabasco (Pilate, in coll.

Janson) ; GUATEMALA, San Isidro (Champion); Nicaracvua, Chontales (Janson); PANAMA,

David (Champion).—Brazit ! 2,

The single specimens found at each of the above localities agree well with others

from Brazil in the Janson collection named A. phedrus by Candéze ; but they have the

thoracic carina elongate, extending at least as far forwards as the middle of the thorax.

The elytra have a triangular scutellar patch, sometimes extending to the humeri (as in

A. crux-nigra, Fleut.), and a rather broad median fascia, connected along the suture,

and sometimes an ante-apical mark, black. The head and thorax vary in colour from

rufo-testaceous to black, but the hind angles of the latter are always pale. The thorax

is considerably broader than long. The insect varies from 24-4 millim. in length.

We are indebted to M. Fleutiaux for the loan of his types of A. crua-nigra and

A. grouvellei: the former is certainly, and the latter probably, a colour-variety of

A, phedrus. An example from Chontales is figured.

2. Anchastomorphus apicalis. (Tab. XVIII. fig. 3.)

Anchastus apicalis; Steinh. Mittheil. miinch. Ent. Ver. i. p. 83 (1877) °.

Hab. GuatemaLa, Senahu in Vera Paz (Champion).—Cotomsta, Ocafia }.

One specimen, differing from the type, kindly communicated by M. René Oberthitr,

in having the apical patch of the elytra black and sharply defined, the black not

extending along the margins to the base, and the basal five joints of the antenne

(which are mutilated in the type) rufo-testaceous. The hind angles of the thorax

are testaceous,

3. Anchastomorphus suturalis. (Tab. XVIII. figg. 4, var. @; 5, var. vy.)

Anchasius suturalis, Cand. Elat. Nouv. i. p. 27 (1864) *.

Hab. Mexico, Cordova in Vera Cruz (Sailé1); Guaremaza, San Isidro, Las Mercedes

(Champion).

Var. a. The elytra with a short stripe at the shoulders and a transverse or oblique fascia at one-third from

ANCHASTOMORPHUS. 401

the apex, the latter extending forwards along the suture to near the base, and in some specimens poste-

riorly to the apex, testaceous. (Fig. 4.)

Hab. GuateMAta, Cerro Zunil (Champion). Five specimens.

Var. GB. The elytra as in a, but with the oblique fascia extending along the suture to the base and there

connected with the humeral patch.

Hab. Panama, Volcan de Chiriqui (Champion). Two specimens.

Var. y. The elytra with a rather broad oblique post-median fascia testaceous or flavo-testaceous, the suture

in one specimen pitchy-brown. (Fig. 5.)

Hab. Panama, Bugaba and Boquete in Chiriqui (Champion). Two specimens.

The type of this species is of the female sex, and, judging from the specimens before

me, of unusually large size. We have three examples (¢ 2: length 3 millim.) from

Guatemala agreeing with it in colour, except that the sutural stripe is considerably

narrower. A. suturalis is described ! as having the hind angles of the thorax bicarinate,

but Iam unable to detect the slightest trace of an inner carina (except along the basal

margin) in the type: there is a fine, straight carina near the lateral margin extending

forwards fully to the middle of the thorax, this becoming very faint in some of our

specimens, and nothing more. ‘The thorax is, at least in the male, feebly sinuate at

the side behind, so that the hind angles are slightly divaricate. ‘The colour of the

antennee and under surface is variable. The length varies from 24-5 millim. The

varieties are connected with the type by intermediate forms, and they cannot be

satisfactorily separated from A. suturalis.

4. Anchastomorphus quadriguttatus. (Tab. XVIII. fige. 6; 6a, underside

of the prothorax.)

Oblong-oval, rather convex, shining, thickly clothed with yellowish-cinereous pubescence; black, the elytra each

with two large flavo-testaceous spots—one at the shoulder and the other on the disc at about one-third

from the apex, the latter not quite reaching the sutural or lateral margin and sometimes indistinct,—the

hind angles of the prothorax and the legs testaceous; the antenne brown, with the base paler, or entirely

ferrugineo-testaceous. Head convex, closely, finely punctate, the frontal carina well defined, rounded ;

antenn about half the length of the body in the male, shorter in the female, joint 3 considerably longer

than 2, a little shorter and narrower than 4. Prothorax transverse, the sides rounded from the middle

forwards and sinuate behind; the hind angles narrow, acute, and divergent, finely unicarinate, the

carina straight, close to the margin, and extending forwards to the middle of the prothorax ; the surface

rather sparsely, finely punctate. Elytra comparatively short, narrowing from a little below the base ;

finely punctate-striate, the interstices flat and sparsely punctured. Beneath thickly punctate, the pro-

sternum and the middle of the metasternum almost smooth; the sutures between the prosternum

and propleure widely separated, converging behind, canaliculate ; posterior coxal plates widened inwards

to half the width of the first ventral segment.

Var. a. The upper surface entirely black.

Length 23-33, breadth 1 millim. (¢ @.)

Hab. Guatemaa, Cubilguitz, Lanquin, San Juan, Tamahu, and Tactic, all in Vera

Paz (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. JII. Pt. 1, December 1895. 3F

402 SERRICORNIA.

Ten examples, four of which belong to the var. a. This very small species is allied

to A. suturalis, A. phedrus, &c. The typical, or spotted form, approaches the var. « of

A. suturalis. There is a specimen from Rio Janeiro in the Janson collection, from

that of Candéze, apparently belonging to the unicolorous variety.

Group POMACHILIINI.

PSILONISCUS.

Psiloniscus, Candéze, Monogr. Elat. ii. p. 3 (1860).

Four species of this genus were described by Candéze, all from Mexico; two of these

have an extended distribution within our limits, one reaching as far south as Ecuador.

An interesting new form is now added from Costa Rica. ‘The males do not appear to

have been known to Candéze ; they have very long antenne, nearly or quite half the

length of the body. Our five species may be thus separated :—

a. Apex of the elytra truncate, the outer angle dentiform.

a’. Pubescence on the elytra forming more or less distinct spots.

a. Prothorax with a space down the middle and two spots on either side

of it impunctate ; hind angles bicarinate . . . . . . sticticus.

b". Prothorax with a space down the middle only impunctate ; hind angles

not carinate. . . . Coe ee eee ee ee ee ee COstaricensis.

ce". Prothorax uniformly punctured ; ; elytra infuscate at the tip . . . . . apicalis.

b'. Pubescence on the elytra uniform. . . . . . . 2... . es . . = borborurus.

b. Apex of theelytra rounded . . . 2 eee ee eee ee ee brunnes.

1. Psiloniscus sticticus. (Tab. XVIII. fig. 7, ¢.)

Psiloniscus sticticus, Cand. Monogr. Elat. i. p. 6°.

Hab. Mexico, Orizaba, Cordova (Sallé+), Misantla and Jalapa (//oge); GUATEMALA,

Coban in Vera Paz (Conradt), Sinanja and Senahu in Vera Paz, Cerro Zunil, Calderas,

Duefias, Capetillo (Champion); Nicaragua, Chontales (belt); Costa Rica, Volcan de

Irazu (Logers).

This is the commonest species of the genus. The antenne are about half the length

of the body in the male, very much shorter in the female. ‘The hind angles of the

thorax are distinctly bicarinate. The thorax is very irregularly punctured, a space

down the middle and two spots on either side of it being impunctate; the elytra have

on the alternate interstices a series of impunctate glabrous spaces, in front of each of

which is an oblong cluster of pale hairs. A male from Cerro Zunil is figured.

2. Psiloniscus costaricensis. (Tab. XVIII. fig. 8, 2.)

Very elongate, narrow, shining; brownish-testaceous, the head with a spot on the vertex, the prothorax

with a broad median vitta, and the elytra with a patch at the shoulders, blackish-ewneous; the

PSILONISCUS. 403

prosternum, the inner part of the propleure, and the middle of the metasternum and of the first two

ventral segments, blackish-eneous, the antenne fusco-ferruginous ; above and beneath sparsely clothed

with rather coarse, long, decumbent, yellowish-cinereous pubescence, the pubescence closer along the sides

of the prothorax, and forming patches here and there on the elytra and abdomen. Head thickly punctured,

a small space on the middle of the vertex excepted, sharply margined in front ; antenne short, extending

slightly beyond the hind angles of the prothorax, rather stout, feebly carinate, joint 3 very little longer

than 2, the two together not nearly so long as 4. Prothorax much longer than broad, subconical; the

hind angles strongly produced, divergent, slightly incurved at the tip, not carinate; the surface thickly

and irregularly punctured at the sides, very sparsely so on the disc, down the centre of which is an

impunctate space, obsoletely canaliculate behind. -Elytra very elongate, narrowing from the base, the

sides almost straight, the apices truncate, the outer angle dentiform ; with rows of coarse, somewhat

' widely separated punctures placed in shallow stri, the interstices convex and very sparsely, irregularly

punctate. Beneath closely punctured.

Length 15, breadth 3 millim. (92.)

Hab. Costa Rica, Volcan de Irazu 6000 feet (Rogers).

One female example. Allied to P. apicalis, but paler, the apex of the elytra not

infuscate, the pubescence sparser, the thorax very sparsely punctured on the disc, down

the centre of which (as in P. sticticus) there is a smooth space, the elytral interstices

smoother. The non-carinate hind angles of the thorax, &c., distinguish it from

P. sticticus. The patches of pubescence are more distinct towards the sides of the

elytra than on the disc.

8. Psiloniscus apicalis. (Tab. XVIII. fig. 9,¢.)

Psiloniscus apicalis, Cand. Monogr. Elat. iii. p. 4, t. 1. figg. 1, 1 a-c’.

Hab. Mexico!, Orizaba (Sallé), Misantla in Vera Cruz (Hége); Guatemana, Cerro

Zunil (Champion); Panama, Volcan de Chiriqui (Champion).—Ecuapor (coll. Janson).

We have numerous examples of both sexes of this species. The antenne in the

male are nearly half the length of the body; in the female they scarcely reach the hind

angles of the thorax.

4, Psiloniscus borborurus.

Psiloniscus borborurus, Cand. Monogr. Elat. ii. p. 5, t. 1. fig. 2°.

Hab. Mexico, Cordova (Sallé +).

The type ( 2 ) of this species is still unique in the Sallé collection.

5. Psiloniscus brunneus. (Tab. XVIII. fig. 10, 2 .)

Psiloniscus brunneus, Cand. Monogr. Elat. iii. p. 6°.

Hab. Mexico, San Andres Chalchicomula (Sallé1), Jalapa (Hoge), Omilteme in

Guerrero (H. H. Smith); Guatemata, Tecpan (Conradt).

I have seen six examples of this species, including the types. ‘The specimens

3F 2

404 SERRICORNIA.

described by Candéze are females. ‘The male, of which we have a single example

from the Los Altos region of Guatemala, has much longer and stouter antenne.

These organs in the male are nearly half the length of the body; in the female they

extend to a little beyond the humeri. The single female specimen from Omilteme is

unusually large and broad, and has the third joint of the antenne much longer than

the second. The insect varies in length from 94-15 millim. A female example from

Jalapa is figured.

PARANIUS.

Head deeply sunk into the prothorax ; eyes rather large; front convex, declivous, separated from the anterior

margin of the head, sharply and triangularly margined; the mouth situated beneath; antenne slender,

joints 2 and 8 short, equal, 4-11 elongate, the basal joint rather short; prothorax narrow, almost as wide

in front as behind, with long, narrow, strongly divaricate hind angles; elytra very elongate, depressed,

much wider than the prothorax; prosternum with a broad chin-piece ; prosternal sutures double, sinuous,

very narrowly separated, not channelled ; prosternal process declivous behind the coxe, narrow, without

angular projection before the tip ; mesosternum depressed, the borders of the cavity not raised; inter-

mediate cox separated only by a narrow lamina; posterior coxal plates moderately wide inwards and

obliquely narrowing outwards, very feebly subangulate at about the inner third; legs elongate, slender ;

tarsi filiform, clothed with fine hairs beneath, the first joint of the hind pair about as long as the following

two joints united.

‘The above characters are taken from a single species from Northern Mexico. The

genus seems to be nearest allied to Anius and Psiloniscus, but it differs from both of

them in several important details. The coxal plates are less abruptly dilated inwards

than in most of the Pomachiliini; the intermediate coxe are very narrowly separated ;

the mesosternum is depressed; the marginal carina of the front extends obliquely

downwards on either side to the middle, the front thus forming a triangular plate,

the median portion of which is not visible from above; the prosternal sutures are

sinuous and not channelled. The basal joint of the antenne is rather short, as in

Psiloniscus.

1. Paranius mexicanus. (lab. XVIII. fig. 11,¢.)

Very elongate, depressed, rather narrow, moderately shining ; ferruginous, the elytra piceous, the legs testaceous ;

above somewhat thickly, beneath sparsely, clothed with fine yellowish-cinereous pubescence. Head densely,

rugosely punctured; antenne about two-fifths the length of the body. Prothorax longer than broad, with

the sides feebly rounded from the middle forwards and sinuate behind ; the hind angles acute, unicarinate ;

the surface closely and somewhat coarsely punctured, the punctuation becoming denser and umbilicate

towards the sides and base, obsoletely canaliculate behind, and transversely depressed on either side of the

middle before the base. Elytra very elongate, depressed, fully one-third wider than the prothorax,

parallel to. the middle, and arcuately narrowing thence to the apex, the apices conjointly rounded;

punctate-striate, the interstices flat and thickly punctured. Beneath finely and rather sparsely punctured.

Length 9%, breadth 23 millim. (.)

Hab. Mexico, Ciudad in Durango (Hége).

One specimen.

DEROMECUS.—SMILICERUS. 405

DEROMECUS.

Deromecus, Solier, in Gay’s Hist. fis. y polit. de Chile, Zool. v. p. 11 (1851); Candéze, Monogr.

Flat. ii. p. 7.

Podonema, Solier, loc. cit. p. 19.

Mecothorax, Solier, loc. cit. p. 22.

The described species of this genus are all Chilian, with the exception of two from

Colombia. The single species from Mexico here referred to it possesses all the

structural characters of Deromecus.

1. Deromecus trivittatus. (Tab. XVIII. fig. 12.)

Elongate, narrow, flattened above, slightly shining; black, the prothorax with the anterior margin partly or

entirely and the hind angles testaceous; the elytra testaceous, with the suture, and a rather broad

marginal vitta extending from just below the shoulder to the apex, piceous or black; the antenne

piceous or pitchy-brown, with the basal joint testaceous; the legs and mouth-parts testaceous; the

abdomen pitchy-brown, bordered with testaceous; above and beneath thickly clothed with yellowish-

cinereous pubescence. Head moderately convex, densely punctured, the front rounded anteriorly and

with a very prominent marginal carina; antenne slender, nearly half the length of the body, joints

2 and 3 equal, the two together as long as 4. Prothorax narrow, a little longer than broad, subparallel

from the middle to the apex, strongly and obliquely dilated behind, with the hind angles greatly extended

and divergent; the latter narrow, acute, and not carinate; the surface closely, somewhat coarsely,

punctate. Elytra elongate, much wider than the prothorax, flattened on the disc, narrowing almost from

the base, truncate at the apex, with the sutural and outer angles sharp; punctate-striate, the interstices

flat on the disc, feebly convex at the sides, and somewhat thickly punctured. Beneath closely punctured ;

prosternal sutures channelled in front; posterior coxal plates considerably widened from the middle

inwards.

Length 74-8, breadth 13 millim.

Hab. Mexico, Yolotepec in Oaxaca (Sal/é).

Three examples, apparently males. ‘This species belongs to Candéze’s first section of

the genus; the insect is unknown to him.

SMILICERUS.

Smilicerus, Candéze, Monogr. Elat. i. p. 20 (1860).

A Tropical-American genus containing four described species, one of which inhabits

Nicaragua, the others being found in the northern parts of South America.

1. Smilicerus belti, (Tab. XVIII. fig. 14, ¢.)

Smilicerus belti, Sharp, Ent. Monthly Mag. xvii. p. 111 (1880)'.

Hab. Nicaracua, Chontales (Bel¢!).

We have received a single specimen of this remarkable species. It has the fifth

ventral segment produced into a sharp spine at the apex.

406 SERRICORNIA.

POMACHILIUS.

Pomachilius, Eschscholtz, in Thon’s Archiv, ii. 1, p. 31 (1829); Candéze, Monogr. Elat. iii. p. 22.

Pomatochilus, Gemminger & Harold, Cat. Col. v. p. 1541.

The fifty-four described species of this genus are all from Tropical South America.

Two are now added from the State of Panama.

Elytra each produced into a long, sharp spine at the apex; the fifth ventral segment

also armed with a long spine soe ee es . toe ee ee Spinefer.

Elytra truncate at the apex, the outer apical angle acute ; the fifth ventral segment

umarmed. . . . ee ee ee ee ee ee eee mucronatus.

1. Pomachilius spinifer. (Tab. XVIII. fig. 16.)

Elongate, very narrow, rather convex, slightly shining; black, the prothorax with the anterior margin bordered

with testaceous on either side behind the eyes, the hind angles usually obscure ferruginous; the elytra

brown, with a very broad, common, triangular patch at the base, extending narrowly down the suture

to beyond the middle, and the extreme apex, piceous or black, in some specimens almost entirely piceous ;

the antennx piceous, with the basal joints sometimes reddish; the legs ferrugineo-testaceous; above

and beneath thickly clothed with fine, decumbent, sericeous pubescence, the elytra also with a few

very widely scattered erect hairs towards the sides, the pubescence on the elytra fulvous, except on the

dark basal portion, that on the rest of the surface yellowish-cinereous. Head closely, finely punctate,

sharply margined in front; antennee slender, extending to considerably beyond the humeri in the male,

scarcely shorter in the female, joints 2 and 3 equal in length, the two together longer than 4. Prothorax

subcylindrical, much longer than broad, very slightly widening from the middle forwards, convex in

front; the hind angles narrowly and acutely produced, divergent, finely unicarinate, the carina placed

near the margin; the surface densely, very finely punctate. Elytra very elongate, a little wider than the

prothorax, convex in front, slightly rounded at the sides, narrowing from about the basal third to the apex,

the apices each produced into a long, sharp spine; punctate-striate, the interstices slightly convex, very

finely and closely punctured. Beneath densely, very finely punctate; fifth ventral segment produced into

a long, fine, sharp spine at the apex.

Length 8-9, breadth 13-123 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

Eleven examples. This insect resembles P. linearis, Cand., &c., in its elongate, narrow

shape; but it has the apex of each elytron produced into a long sharp spine, and the

fifth ventral segment also armed with a sharp spine at the tip. It belongs to Candéze’s

first section of the genus, and is perhaps nearest allied to his P. cuspidatus from

Venezuela.

2. Pomachilius mucronatus.

Elongate, very narrow, rather convex, subopaque ; black or brownish-black, the prothorax with the anterior

margin bordered with testaceous on either side behind the eyes, the hind angles sometimes obscure

testaceous, the antenne fusco-ferruginous, the legs flavo-testaceous; above and beneath thickly clothed

with a fine, sericeous, decumbent, yellowish- or fulvo-cinereous pubescence. Head thickly, finely punctate,

sharply margined in front; antennee slender, nearly half the length of the body in the male, slightly

sherter in the female, joints 2 and 3 equal in length, the two together longer than 4. Prothorax sub-

cylindrical, much longer than broad, slightly widening from the middle forwards, convex in front; the hind

angles very narrowly, acutely produced, divergent, finely unicarinate, the carina near the margin; the

surface densely, very finely punctate. Elytra elongate, a little wider than the prothorax at the base,

convex in front, slightly rounded at the sides, narrowing from about the basal third to the apex, the

POMACHILIUS.—HYPNOIDUS. A407

apices truncate and armed at the outer angle with a short, fine, acute tooth; punctate-striate, the

interstices almost flat and closely punctate. Beneath densely, very finely punctate; fifth ventral segment

rounded at the apex.

Length 5-53, breadth 14-1} millim. (¢ 2.)

Hab, Panama, Volcan de Chiriqui 2500 feet (Champion).

Nine examples. This species closely resembles the Colombian P. linearis, Cand.,

and P. longicollis, Steinh., the types of which are before me. From the first-mentioned

it differs in having the outer apical angles of the elytra acuminate, as well as in its

smaller size, narrower shape, &c.; and from the latter in the shorter third joint of the

antennee (this joint being as long as the fourth in P. longicollis), the shorter and

anteriorly convex thorax, and the less elongate elytra. This insect, like the preceding,

is unknown to Dr. Candéze.

Group CRYPTOHYPNINI.

HYPNOIDUS.

Aypolithus, Eschscholtz, in Thon’s Archiv, u. 1, p. 33 (1829) (nec Dejean, 1829).

Hypnoidus, Stephens, Ilustr. Brit. Ent., Mandib. iii. p. 260 (1830) (part.); Bergroth, Ent. Nachr.

xix. p. 808 (1893); Horn, Ent. News, v. p. 7 (1894).

Crypohypnus, Eschscholtz, in Silberm. Rev. Ent. iv. tab. (1836).

Cryptohypnus, Candéze, Monogr. Elat. iii. p. 55 (part.); Schiddte, Nat. Tidsskr. (8) iii. p. 519

(1865) [Translation in Ann. & Mag. Nat. Hist. (8) xviil. p. 333]; Horn, Trans. Am. Ent. Soc.

Xvi. p. 1 (part.) (nec Thomson).

Cryphthypnus, Kiesenwetter, Naturg. Ins. Deutschl. iv. p. 357 (1858).

Negastrius, Thomson, Skand. Col. vi. p. 110 (1864).

Zorochrus, Thomson, loc. cit. p. 116.

The Central-American species here referred to Hypnoidus agree in having the meso-

thoracic epimera not reaching the coxee, the cavities being closed externally by the meso-

and metasternum, and the prosternal sutures arcuate and evidently convergent behind.

In Cryptohypnus, Thoms. (= Hypolithus, Schiodte), the mesothoracic epimera reach the

coxze, and the prosternal sutures are almost parallel; it contains various palearctic and

nearctic forms of comparatively large size, and is not represented within our limits. .

The North-American species of Cryptohypnini have been exhaustively monographed

by Dr. Horn; he has detected important male-characters in some of them, viz. the

presence of a densely punctured and thickly pubescent spot or fovea on the first or

second ventral segment, or on the middle of the prosternum, a peculiarity to be found

in several of the new species here described.

Not a single representative of the genus is contained in the extensive collections

formed by MM. Sallé and Hége, and it is probable that several Mexican species

remain to be discovered; one, however, was found long ago at Teapa by Pilate. The

Central-American forms belong to two groups, the first of which includes H. cucullatus,

408 SERRICORNIA.

Horn, H. canescens, and H. guatemalensis, and the second H. obliquatulus (Melsh.),

H. pectoralis (Say), and several new species described below; to the second group also

belong the South-American Crytohypnus oberthiiri, C. atomus, and C. equalis, Cand., and

C. nivalis, Fairm.

The genus Hypnoidus is very widely distributed, and contains a large number of

species. They are chiefly found on the sandy shores of rivers and lakes, under stones,

or at the roots of plants.

a. Elytra striate, immaculate.

a'. Prothorax produced in the middle in front, the hind angles carinate.

. Outer elytral strize well defined . cucullatus.

. Outer elytral strize obliterated . ee canescens.

b. ‘Prothons truncate in the middle in front, the hind angles not carinate ;

outer elytral strize obliterated . guatemalensis.

). Elytra confusedly punctured, without trace of strive, usually maculate * ; hind

angles of the prothorax with a short carina.

c', Upper surface shining or moderately shining ; prothoracic punctuation fine.

ec". Hind angles of the prothorax rather long, distinctly divergent.

al. Hlytra testaceous, with a common post-median fascia or diamond-

shaped mark, the suture, and sometimes a scutellar patch, infuscate. feapensis.

bo". Elytra each with a broad ante-median fascia, narrowing inwards,

and an apical spot, neither reaching the suture, flavous . . . . gquadriplagiatus.

d", Hind angles of the prothorax short, not or very feebly divergent.

ec", Elytra each with a large, triangular humeral patch and an oval apical

spot flavous . toe toe eee tetraspilotus.

da". Elytra each with two rather large flavous spots on thedisc. . . . guadrisignatus.

el, Elytra each with, at most, a narrow oblique median fascia towards the

sides, and sometimes a faint apical spot, testaceous or flavous ;

prothorax piceous, with the disc paler. . . . . . . mexicanus.

'. Upper surface rather dull; prothoracic punctuation more distinct ; hind

angles of the prothorax short and feebly divergent. . . . . . . . pectoralis.

1. Hypnoidus cucullatus. (Tab. XVIII. figg. 13; 13 a, underside of the

prothorax.)

Cryptohypnus cucullatus, Horn, Trans. Am. Ent. Soc. xviii. p. 17 (1891) '.

Hypnoidus cucullatus, Horn, Ent. News, v. p. 7’.

Oblong-oval, rather broad, convex, opaque, the elytra slightly shining; black, the anterior margin of the

prothorax sometimes rufescent in the centre, the elytra brassy, the first three joints of the antenne

usually partly testaceous, the legs testaceous, with the femora more or less infuscate in the middle; the

prothorax with a large, well-defined patch of silvery pubescence on either side at the base, the elytra

somewhat thickly, and the rest of the upper surface sparsely, clothed with fine decumbent yellowish-

cinereous pubescence, and also with scattered semierect whitish hairs, which are long and somewhat

conspicuous on the elytra; the under surface thickly clothed with yellowish-cinereous pubescence. Head

broad and flattened, densely, very finely punctate, the eyes small; antenne slender, feebly serrate, moderately

* Dark varieties occur of some of the species.

HYPNOIDUS. 409

long, the joints longer than broad. Prothorax as long as broad, very convex, subparallel behind,

arcuately narrowing from the middle forwards; the apex broadly and arcuately produced in the middle,

projecting over the basal portion of the head; the anterior angles strongly and acutely produced in front ;

the hind angles acute, not divergent, sharply unicarinate, the carina almost straight and extending

forwards to beyond the middle; the surface closely, very finely punctate, and sparsely, finely granulate

on the declivous lateral portions and at the base, very coarsely and closely granulate along the middle of

the disc, the coarsely granulate space widening anteriorly. Elytra about twice the length of the prothorax,

and wider than it at the base, arcuately narrowing from the basal third, the humeri obtuse ; deeply striate,

the strie without distinct punctures, the interstices convex, and closely, very finely punctate. Beneath

closely and finely, the prosternum more sparsely, punctate, the latter granulate in front and with a short

obtuse lobe; prosternal sutures curved, and slightly converging posteriorly, the prosternum disconnected

from the propleure for the greater part of its length.

Length 3-33, breadth 13-13 millim.

Hab. Norte America, Utah and Texas '—GuarTeMALA, San Ger6énimo in Vera Paz,

and Rio Naranjo (Champion).

Nine specimens, one of which has been examined by Dr. Horn*. In the vestiture

of the upper surface and the form and sculpture of the thorax this and the following

species resemble the South-American Monadicus mobiliceps and M. bilesus, Cand.

The longer semierect hairs are only visible in fresh specimens. ‘The pubescence

appears whiter when the insect is viewed in a particular light; the silvery patch near

the hind angles of the thorax is conspicuous. The coarsely granulate space on the

disc of the thorax is elongate-triangular in shape and somewhat sharply defined, the

sculpture on the rest of the surface being very much finer. |

There is no trace in any of the specimens of a closely punctured space on the second

ventral segment, a distinctive mark of the males of the allied H. canescens. The

prosternum in both species is freely movable in front, it being disconnected from the

propleuree anteriorly.

2. Hypnoidus canescens.

Oblong-oval, rather broad, moderately convex, opaque, the elytra slightly shining; black, the elytra with a

brassy lustre, the basal three joints of the antenne, partly or entirely, and the legs flavo-testaceous ; the

head and a large patch on either side of the base of the prothorax thickly clothed with whitish or silvery

pubescence, the rest of the prothorax sparsely, and the elytra and under surface thickly, clothed with a

short, fine, yellowish- or fulvo-cinereous pubescence, which in some specimens becomes whitish towards the

sides of the elytra. Head broad and flattened, densely, very finely punctate, the eyes small; antenne

slender, feebly serrate, moderately long. Prothorax as long as broad, very convex, arcuately narrowing

from the middle forwards, the sides feebly sinuate behind; the apex arcuately produced in the middle, pro-

jecting over the basal portion of the head; the anterior angles acutely produced in front ; the hind angles

acute, feebly divergent, and unicarinate, the carina almost straight and extending forwards to beyond the

middle ; the surface closely, very finely punctate on the declivous lateral portions and at the base, finely

granulate on the middle of the disc. Elytra scarcely twice the length of the prothorax, and of the same

* There is a specimen of this insect in the British Museum labelled “ Cryptohypnus indicus, Motsch.,

E. Ind., ex Jekel.” C. indicus was described by Motschulsky in 1858, in the seventh volume of his ‘ Etudes,’

p. 57, from Burma: to judge from his diagnosis, it is very doubtful if the American insect belongs to the

same species.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, December 1896. 3G

410 - SERRICORNIA.

width at the base, arcuately narrowing from about the basal third, slightly flattened on the disc ; deeply

striate, the strie without distinct punctures, the seventh, eighth, and ninth obsolete, the interstices feebly

convex, and closely, very finely punctate. Beneath closely and very finely, the prosternum sparsely,

punctate, the latter granulate in front ; the prosternum disconnected from the propleure for the greater

part of its length. Second ventral segment with a rounded, slightly depressed, densely punctured, thickly

pubescent space in the centre in the male.

Length 13-23, breadth §-% millim. (¢ @.)

Hab. Guatemata, Panajachel, Pantaleon, Guatemala city, San Gerénimo (Champion).

Numerous examples. Closely allied to the preceding, but smaller; the thorax less

coarsely granulate on the disc; the elytra narrower and less convex, with the outer

strie obliterated and the interstices flatter. The insect is widely distributed in

Guatemala, between elevations of from 1000 to 5000 feet; specimens were obtained

at Panajachel, on the shores of the lake of Atitlan, and on the sandy banks of streams

elsewhere.

3. Hypnoidus guatemalensis.

Oblong-oval, narrow, convex, opaque, the elytra slightly shining; black, the elytra with a brassy lustre; the

antenne piceous, with the second and third joints, and the lower side of the first, flavo-testaceous; the

legs flavo-testaceous, the femora infuscate in the middle beneath; above and beneath sparsely clothed

with a very short, fine, cinereous pubescence, the prothorax apparently with a denser patch of pubescence

near the hind angles. Head flattened, densely, very finely punctate, the eyes small; antenne slender,

feebly serrate, moderately long. Prothorax about as long as broad, arcuately converging from the middle

forwards, the sides slightly sinuate before the base, the apex truncate in the middle, the anterior angles

acute; the hind angles acute, slightly divergent, and not carinate; the surface densely, very finely

punctate, finely granulate on the anterior part of the disc, with traces of a smooth median line behind.

Elytra about twice the length of the prothorax, and not wider than it at the base, gradually narrowing

from about the middle; rather deeply striate, the striae without distinct punctures, the seventh and eighth

nearly obsolete, the interstices almost flat, and closely, minutely punctate. Beneath finely and densely

punctured ; the prosternum more sparsely punctate, finely granulate in front.

Length 23, breadth # millim.

Hab. GUATEMALA, Pantaleon (Champion).

One specimen. ‘This insect closely resembles H. canescens, but it is narrower and

more parallel; the thorax has the apex truncate in the middle, and the hind angles

are not carinate.

4. Hypnoidus teapensis. (Tab. XVIII. fig. 15.)

Oblong, feebly convex, slightly shining, finely pubescent; testaceous or flavo-testaceous, the elytra with a

common diamond-shaped mark at one-third from the apex—extending narrowly along the suture to the

base and apex, and in one specimen outwardly to the lateral margin,—and sometimes a large, triangular

scutellar patch also, fuscous or piceous. Head closely, finely punctate; antenne slender, feebly serrate.

Prothorax broader than long, moderately convex, rounded at the sides, the latter strongly sinuate before

the base; the hind angles rather long, acute, divergent, and unicarinate, the carina short and almost

straight; the surface closely, finely punctate, with a smooth median line. Elytra nearly three times

the length of the prothorax, and wider than it, narrowing from the middle; closely, finely punctate,

without trace of striw. Beneath densely and very finely, the prosternum more sparsely, punctate.

Prosternum with an oblong closely punctured spot in the middle in the male.

Length 3-37, breadth 1 millim. (¢ 2.)

HYPNOIDUS. All

Hab. Mexico, Teapa in Tabasco (Pilate, in coll. Janson; H. H. Smith).

Three specimens. ‘This insect is very like the typical form of ZT. pectoralis (Say);

but it has the thorax strongly sinuate at the sides behind, with the hind angles acute,

longer, and more divergent, and the punctuation a little finer, and the elytra somewhat

differently coloured. It is larger and more elongate than any of the other allied

Central-American species. ‘The single male example received is very immature.

5. Hypnoidus quadriplagiatus. (Tab. XVIII. fige. 17; 17a, underside of

the prothorax, ¢.)

Oblong, moderately convex, shining ; testaceous, the scutellum infuscate ; the elytra black or piceous, each with

avery broad antemedian fascia, narrowing inwardly, and an oval apical patch, neither reaching the suture,

testaceous ; beneath ferruginous, the prothorax flavous; above and beneath very finely and sparsely

pubescent. Head closely, finely punctate; antennee slender, feebly serrate, about reaching the hind

angles of the prothorax. Prothorax broader than long, transversely convex, about equal in width in

front and behind, rounded at the sides, the latter strongly sinuate before the base; the hind angles acute

and moderately divergent, unicarinate, the carina short and almost straight; the surface closely and

finely punctate, and with a smooth median line. LElytra about two and one-half times the length of the

prothorax, and considerably wider than it at the base, slightly flattened on the disc, arcuately narrowing

from the middle; closely and finely punctate, without trace of strie. Beneath closely and very finely,

the prosternum more sparsely and coarsely, punctured. Prosternum with a narrow, oblong, slightly

depressed, densely punctured space in the middle in the male.

Length 23-22, breadth Z-1 millim. (¢ 9.)

Hab. GuateMALA, Rio Naranjo (Champion).

Eight specimens, from the sandy banks of the Rio Naranjo, on the Pacific slope and

not far from the Mexican frontier. This species closely resembles H. tetraspilotus,

but it is much larger, the hind angles of the thorax are more divergent, the meta-

sternum is closely punctured throughout, and the prosternal depression in the male is

shallower and oblong in shape; the elytral markings, too, are different, the sub-

triangular lateral patch being placed considerably below the base. These markings

extend to the lateral margin, but not to the suture; the fascia is sometimes reduced in

size, forming an oblique mark.

6. Hypnoidus tetraspilotus. (Tab. XVIII. figg. 18; 18a, underside of the

prothorax, ¢.)

Oblong, moderately convex, shining ; testaceous or rufo-testaceous, the prothorax sometimes piceous or pitchy-

red, with the disc paler; the elytra black or piceous, with a large triangular patch at the sides in front

and an oval mark at the sides at the apex, the latter sometimes extending to the suture behind, testaceous

or yellowish (these markings leaving a common subtriangular scutellar patch and a broad postmedian

fascia, connected at the suture and extending along it almost to the apex, of the ground-colour); the

antennee and legs testaceous ; the under surface brownish-testaceous ; above and beneath very finely and

sparsely pubescent. Head closely, finely punctate; antenne slender, feebly serrate, about reaching the

hind angles of the prothorax, Prothorax broader than long, transversely convex, about equal in width

in front and behind, rounded at the sides, the latter sinuate before the base; the hind angles acute and

feebly divergent, unicarinate, the carina short and almost straight ; the surface closely, very finely punc-

tate, and with a smooth median line. Elytra about two and one-third times the length of the prothorax,

3G2

412 SERRICORNIA.

and very little wider than it at the base, slightly flattened on the disc, arcuately narrowing from the

middle ; closely and very finely punctate, without trace of strie. Beneath closely, minutely punctate,

the pro- and metasternum much smoother along the centre. Prosternum with a small, densely punctured

fovea in the middle in the male.

Length 13-13, breadth 3-3 millim. (¢ 9.)

Hab. GuaTEMALA, Paraiso (Champion).

Fourteen examples, from the vicinity of the Pacific coast, and all attracted to light

(in company with some very minute Dytiscide), probably from the banks of a small

stream in the neighbourhood.

This minute species is allied to H. quadrisignatus ; but it is much smaller and less

elongate, the elytral spots are lateral (one being basal and the other apical), the

punctuation is finer, and the metasternum is much more sparsely punctured. ‘The

markings are constant.

7. Hypnoidus quadrisignatus. (Tab. XVIII. fig. 19.)

Oblong, moderately convex, shining; black, piceous, or pitchy-brown, the prothorax sometimes entirely

testaceous or paler in the middle; the elytra each with two testaceous or yellowish spots on the disc—

one, large and subtriangular, before the middle, the other, oval or rounded, smaller, towards the apex ;

the antennex and legs testaceous; the under surface reddish-brown ; above and beneath very finely and

sparsely pubescent. Head closely, very finely punctate; antenne slender, feebly serrate, about reaching

the hind angles of the prothorax, joint 3 slightly shorter than 2. Prothorax broader than long, trans-

versely convex, about equal in width in front and behind, rounded at the sides, the latter sinuate before

the base; the hind angles acute, slightly divergent, and sharply unicarinate, the carina short and almost

straight ; the surface closely, very finely punctate, and with a smooth median line. LElytra about two

and one-half times the length of the prothorax, and slightly wider than it at the base, flattened on the

disc, arcuately narrowing from the middle; very finely and closely punctured, without trace of strie.

Beneath closely, very finely punctate, the prosternum sparsely punctured. Prosternum with a densely

punctured fovea in the middle in the male.

Var. The upper surface entirely black or piceous.

Length 2-24, breadth #1 millim. (¢ 9.)

Hab. Panama, Tolé (Champion).

Found in abundance on the sandy banks of a river uear Tolé. The colour is variable,

but in most of the specimens the spots are well-defined. Allied to Z/. obliquatulus

(Melsh.). The elytra are a little more flattened than in //. quadriplagiatus, &c.

8. Hypnoidus mexicanus, (Tab. XVIII. fig. 20.)

Cryptohypnus mexicanus, Fleut. Ann. Soc. Ent. Belg. 1895, p. 171°.

Hab. Mexico}; GuaTeMaa, Paso Antonio (Champion).

Numerous examples of this insect were found on the banks of a lagoon near the

Pacific coast of Guatemala. . meaxicanus closely resembles the N.-American H. odli-

quatulus (Melsh.), but it is narrower, the disc of the thorax is yellowish, and the hind

angles of the latter are a little less divergent; the elytra sometimes have a narrow

transverse or oblique fascia towards the sides at about the middle, and a faint spot on

HYPNOIDUS.—ARRHAPHES. 413

the disc before the apex, testaceous; the male has a small densely punctured fovea in

the middle of the prosternum. From ZH. pectoralis, var. inops (Lec.), specimens of

which are sometimes similarly coloured, the present insect seems to differ in the less

distinct punctuation of the thorax, the more shining surface, and the more convex

shape. The punctuation of the metasternum is sparser than in H. guadrisignatus.

We are indebted to M. Fleutiaux for the loan of his type, which was found in Paris

in imported Mexican tobacco.

9. Hypnoidus pectoralis.

later pectoralis, Say, Trans. Am. Phil. Soe. vi. p. 173 (1836)*; Complete Writings, ii. p. 608°.

Cryptohypnus pectoralis, Lec. Trans. Am. Phil. Soc. new ser. x. p. 488°; Cand. Monogr. Elat. iii.

p- 89°; Horn, Trans. Am. Ent. Soc. xviii. p. 27’.

Hypnoidus pectoralis, Horn, Ent. News, v. p. 7°.

Cryptohypnus futilis, Lec. Trans. Am. Phil. Soc. new ser. x. p. 488"; Cand. Monogr. Elat. i. p. 91°.

Cryptohypnus inops, Lec. loc. cit. p. 488°; Cand. loc. cit. p. 91”.

Hab. Nortu America !~‘, Massachusetts to California ° 7~!°, Arizona ®, and Texas ®.

—Mextico, Northern Sonora (Morrison).

The Sonoran specimens belong to the ‘subvariety’ of the variety futdlis, Lec.,

described by Horn ?.

ARRHAPHES.

Arhaphes, Candéze, Monogr. Elat. ii. p. 98 (1860).

Arrhaphes, Candéze, Cat. Méthod. Elat. p. 120 (1891).

Phorotarsus, Motschulsky, Bull. Mosc. 1861, 1, p. 120.

Hemirrhaphes, Candéze, Compt. Rend. Soc. Ent. Belg. xxi. p. exli (1878).

This genus contains nine described species, all from the warmer parts of the Old

World—Ceylon, India, Burmah, Java, and Sumatra each furnishing one or more repre-

sentatives; and to these must now be added one from Central America. Dr. Candéze

states that the tarsi are simple in Arrhaphes; but in his typical species, 4. diptychus,

from Ceylon, the types of which are before me, the third and fourth joints, as noted

by Motschulsky and as in the American species here described, are narrowly lamellate.

The. obliteration of the prosternal sutures is even more complete in A. americanus

than in A. diptychus, as in the latter they are indicated anteriorly by a faint carina, of

which there is no trace in A. americanus.

1. Arrhaphes americanus. (Tab. XVIII. figg. 22; 22¢, maxillary palpus ;

22 6, anterior tarsus.)

Moderately elongate, convex, shining, finely pubescent ; testaceous, the prothorax usually with a more or less

distinct median vitta—sometimes extending to the greater part of the disc—fuscous or piceous; the

elytra with a large, triangular scutellar patch—in some specimens extending to the humeri and in others

almost obliterated—and a transverse median fascia—sometimes extending forwards along the suture and

joining the scutellar patch, and sometimes reduced to a spot on the middle of the dise,-—piceous or black ;

414 SERRICORNIA.

the antenne and legs flavo-testaceous. Head thickly and somewhat coarsely punctate, with a short,

smooth, longitudinal carina on the vertex ; antenne slender, feebly serrate, about half the length of the body

in the male, shorter in the female, joints 2 and 3 subequal in length, 4-11 moderately elongate. Pro-

thorax very convex, nearly as long as broad, about equal in width at the base and apex, rounded at the

sides, the latter strongly sinuate before the base; the anterior angles acute and rather prominent; the

hind angles acute, divergent, and unicarinate, the carina very short; the surface thickly punctured, the

punctures finer than those on the head, canaliculate down the middle from the base to the apex. Elytra

about two and one-half times the length of, and much wider than, the prothorax, subparallel to the

middle, and arcuately narrowing thence to the apex ; closely, confusedly punctate, without trace of striz.

Beneath closely and finely, the pro- and metasternum very sparsely, punctate.

Length 33-4, breadth 12-13 millim. (¢ 2.)

Hab. Mexico, Teapa (Pilate, in coll. Janson); GuatemMaLa, Las Mercedes, Cerro

Zunil, Zapote (Champion); Panama, Bugaba, Tolé (Champion).

Eleven examples, varying considerably in the extent of the dark markings on the

thorax and elytra. ‘The median vitta on the thorax is well-defined in some specimens

and obliterated in others; the basal patch on the elytra is sometimes obsolete, and the

median fascia reduced to a spot on the disc. In one specimen the basal patch is

connected with the median fascia at the suture and at the sides, so as to enclose a large

spot of the ground-colour on each elytron. A specimen from Zapote is figured.

The following genus is of doubtful position. It will probably have to be included

in the group Agrypnini.

AGRYPNELLA.

Head very deeply sunk into the prothorax ; the front broad, flattened, and extending beyond the labrum,

separated from the anterior margin of the head; apical joint of the maxillary palpi moderately stout,

obliquely truncate at the tip; antenne short, the basal joint very stout, the other joints rather slender

and feebly serrate, 2 longer than 3; prothorax trisinuate at the base, truncate in the middle in front,

the anterior angles deflexed, the hind angles obliquely truncate and not carinate, the sides somewhat

explanate and abruptly separated from the propleure ; scutellum large, broad-oval ; elytra rather short,

with the base deeply and obliquely sinuate-emarginate on either side for the reception of the hind angles

of the prothorax ; prosternum moderately broad in front, with a broad, prominent chin-piece, which is

limited behind by a transverse groove, the sutures single and obliquely converging, the prosternal process

moderately long, subangular at the tip; propleure with a sharp carina extending almost parallel with the

margin from opposite the middle of the lower portion of the eye to the base, and with a space along the

inner side of the carina from the apex to the middle slightly hollowed for the reception of a portion of the

antenna; mesosternum abruptly declivous, notched in the middle in front, the cavity extending into the

metasternum ; middle coxw widely separated ; posterior coxal plates very broadly and abruptly widened

at the middle, becoming exceedingly narrow outwards ; tarsi filiform, simple, the basal joint not so long

as the following two joints united, the claws simple; vestiture of the body squamiform.

This genus includes two small species—Cryptohypnus squamifer, Cand., which is

widely distributed in ‘Tropical America, including the Antilles, and the insect from the

Amazons described below*. It possesses very remarkable characters, some of which

* Agrypnella eburnea.

Apparently fuscous, completely covered with whitish scales; a large spot on the disc of the prothorax at the

base, excised in front and behind, an oblique angulate mark on the outer part of the disc of each elytron

AGRYPNELLA. 415

are common to the Agrypnini and others to the Cryptohypnini; but the genus cannot

be included in either of these groups as at present defined. It differs from the

Agrypnini in the prominent frontal plate and feeble antennal grooves, and from the

Cryptohypnini in the very much narrower prosternum and the carinated and shallowly

grooved propleure. ‘The propleural carina is distant from the margin throughout: in

some genera of the group Cardiophorini the carina incompletely separating the pro-

pleuree from the pronotum is also placed beneath, but in this case it extends inwards

from the hind angles *. The hind angles of the thorax are formed very much as in

various species of Lacon and Meristhus, near which the genus should probably be

placed. A. sguamifera lives under stones on the sandy banks of rivers.

1. Agrypnella squamifera. (Tab. XVIII. figg. 21; 21a, underside of the

prothorax ; 216, prosternal process.)

Cryptohypnus squamifer, Cand. Klat. Nouv. 1. p. 38 (1864) '; Fleut. Ann. Soc. Ent. Fr. 1891, p. 283°.

Agrypnus pedicularius, De}. Cat. 3rd edit. p. 100°.

Agrypnus pictus, Buquet, in litt. (fide Dej. Cat.) *.

Hab. Guatemata, Rio Naranjo (Champion) ; Nicaragua, Ometepe (er Wickham) ;

Panama, Tolé (Champion).—SoutH America, Venezuela?, Cayenne 4, Santarem, Ega,

Para 1, Peru, Monte Video; ANTILLES, Grenada.

One specimen only has been found at each of the three Central-American localities

quoted. Numerous South-American examples are contained in the Janson collection,

including Candeze’s type from Para and two from Cayenne from the Dejean collection.

The scales in fresh specimens completely hide the sculpture. Our figure is taken from

the Guatemalan example.

Group CARDIOPHORINI.

To the chief characters given for this group, viz. the heart-shaped scutellum, and the

short, wedge-shaped, truncated prosternal process, it may be noted that the anterior

coxal cavities are partly or almost entirely closed behind by the prothoracic epimera,

instead of being widely open as in the Cryptohypnini. The prosternal process has a

brush of long hairs at the inner apical angle.

beyond the middle, and a small dot midway between this and the apex, fuscous, the three inner inter-

stices of the elytra each with a line of ochraceous scales down the centre, the fourth, fifth, and sixth

interstices also with a line of similarly coloured scales at the base; beneath paler than above, the legs

and antenne testaceous. Head and prothorax thickly punctured; the prothorax broader than long,

rounded at the sides, widest at the middle, the hind angles obliquely truncate. LElytra oval, broader than

the prothorax ; punctate-striate, the outer interstices convex.

Length 3,4), breadth 17 millim.

Hab. Amazons, Santarem (Bates, in coll. Janson). One specimen.

* In Cardiophorus mirabilis, Cand., from India, which should probably form the type of a new genus, the

carina is complete and distant from the margin throughout.

416 SERRICORNIA.

CARDIOPHORWUS.

Cardiophorus, Eschscholtz, in Thon’s Archiv, ii. 1, p. 34 (1829) ; Candéze, Monogr. Elat. in.

p. 106.

Caloderus, Stephens, Illustr. Brit. Ent., Mandib. iii. p. 269 (1830).

Dicronychus, Brullé, Expéd. Scient. de Morée, Anim. Artic. p. 138 (1832) (nec Castelnau, nec

Germar).

Gauroderus, Thomson, Skand. Col. 1. p. 104 (1859).

This widely distributed genus contains a large number of species, but it is almost

absent from Tropical America, where it is replaced by Aptopus, Triplonychus, Horisto-

notus, and Esthesopus. In the New World Cardiophorus apparently does not extend

south of the Mexican States of Vera Cruz and Guerrero *. The four species here

enumerated from Mexico may be separated thus:

a. Claws strongly toothed at the base; elytral interstices convex ; prothorax with

distinct basal sulci) . 1. we we eee ee ee ewe. ptopoides.

b. Claws simple.

a’. Elytra coarsely and deeply punctate-striate ; prothorax with distinct basal

sulci.

a. Elytral interstices very convex ; length 64-73 millim. . . So... brevis.

6". Elytral interstices moderately convex; length 5-6 millim. . . . . . . vulneratus.

é'. Elytra finely and shallowly punctate-striate, the interstices almost flat; pro-

thorax without distinct basal sulci. . 2... 1. eee mlHICANUS.

1. Cardiophorus aptopoides. (Tab. XIX. fig. 2, ¢.)

Cardiophorus aptopoides, Cand. Elat. Nouv. 1. p. 64 (1864), v. p. 47 nota (1893) (part.) °.

a. The prothorax rufous, with a black patch of variable size on the disc; the elytra each with an orange-

yellow submarginal vitta. (Fig. 2.)

Hab. Mexico, Ventanas in Durango (Hége), Cuernavaca in Morelos (Sallé, H. H.

Smith), Yautepec in Morelos (Hoge), Chilpancingo in Guerrero (Hoge, H. H. Smith),

Tepetlapa and Amula in Guerrero (H. H. Smith), Sinaloa}.

B. The prothorax rufous, with a large black patch on the disc, the black sometimes extending to the greater

part of the surface ; the elytra entirely black.

Hab. Mexico, Chilpancingo (Hoge, H. H. Smith), Tepetlapa and Cuernavaca (H. H.

Smith).

y. The prothorax and elytra entirely black.

Hab. Mexico, Chilpancingo (Loge, H. H. Smith).

It is possible, as stated by Dr. Candéze !, that the form of the tarsal claws is variable

in C. aptopoides ; but it seems to me to be very doubtful if such is the case, and the

* C, humeralis, Fairm., from Chili, belongs probably to another genus.

CARDIOPHORUS. ALT

name aptopoides is here retained solely for the form with dentate claws. ‘This insect

varies greatly in the colour of the upper surface, the typical examples having an orange-

yellow submarginal vitta on each elytron. It has been collected in plenty in all its

varieties at Chilpancingo, unaccompanied by C. brevis.

A specimen from Chilpancingo of the typical form is figured.

2. Cardiophorus brevis. (Tab. XIX. fig. 3, var.)

Cardiophorus aptopoides, Cand. Elat. Nouv. i. p. 64 (part.) °.

a. The prothorax rufous, with a large black patch on the disc not extending to the base; the elytra each with

an orange-yellow or flavous submarginal vitta.

Hab. Mexico, Mazatlan (coll. Janson, ex Candéze), Presidio (Forrer), Acapulco

(Hoge), Sinaloa}.

6. The prothorax as in a, but with the black more extended, sometimes leaving only a spot at the hind angles

rufous ; the elytra entirely black. (Fig. 3.)

Aptopus brevis, Cand. Ann. Soc. Ent. Belg. 1889, p. 111 (Elat. Nouv. iv. p. 45) ?.

Cardiophorus devectus, Cand. Hlat, Nouv. v. p. 47 (1893) °.

Hab. Mexico, Presidio (forrer).

y. The prothorax and elytra ‘entirely black.

Hab. Muxico, Presidio and Ventanas (forrer), Acapulco (Hodge), Sierra Madre de

Chihuahua °, Sinaloa ?.

The specimens referred to C. brevis, for a type of which we are indebted to Dr. Can-

déze, have the claws simple. The colour-varieties correspond exactly to those of

C. aptopoides, C. brevis answering to the var. y of that insect. The genitalia of the

male are similarly formed in both. C. brevis has been received in numbers from

Presidio and Acapulco, unaccompanied by C. aptopoides. A specimen from Presidio

of the var. @ is figured.

3. Cardiophorus vulneratus, (Tab. XIX. fig. 4, 3.)

Horistonotus vulneratus, Horn, Trans. Am. Ent. Soc. xii. p. 85 (1884) (nec Cand. *) ’.

Hab. Nortu America, Arizona (Morrison !).—Mextico, Northern Sonora (Morrison.

We have received five specimens of this species, two of which were examined some

years ago by Dr. Horn. C. vulneratus is extremely like the var. B of C. brevis; but it

is considerably smaller, the thorax is a little more coarsely and closely punctured, and

the elytral interstices are not so convex. The insect clearly belongs to Cardiophorus,

the incomplete carina separating the pronotum from the propleure being placed far

below the lateral margin of the prothorax.

* OQ. vulneratus, Cand., from Burma [Ann. Mus. Genova, xxvi. p. 682 (1888) ], requires a new name.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, December 1895. 3H

418 SERRICORNIA.

4. Cardiophorus mexicanus.

Moderately elongate, rather convex, slightly shining ; brassy black, the elytra pitchy-brown, with the suture

and sides castaneous; the antenne black, with the basal joint reddish at the tip; the legs piceous, with

the base of the femora, the knees, and the tarsi paler; the under surface black; above and beneath

thickly clothed with short, fine, cinereous pubescence. Head very closely, finely punctate; antennex

slender, short, extending a little beyond the humeri, joints 3 and 4 subequal, 38 much longer than 2.

Prothorax convex, slightly broader than long, rounded at the sides, narrowed in front and behind ; the

hind angles moderately produced, not: divergent, with a short faint lateral carina; the surface very closely

and finely punctured throughout; the base feebly incised on either side. Elytra moderately elongate,

slightly narrowed in front, and there scarcely wider than the base of the prothorax, and narrowing from

a little beyond the middle to the apex, somewhat acuminate behind; finely and shallowly punctate-

striate, the punctures not very closely placed, the interstices almost flat, thickly and very minutely punctate.

Beneath very closely and finely punctured ; the propleure separated from the pronotum at some distance

' from the margin by a very faint carina which extends three-fourths the length of the prothorax. Claws

simple.

Length 74, breadth 2} millim. (¢.)

Hab. Muxtco, Jalapa ([o6ge).

One example. Allied to C. floride, Cand., from which it differs in having the

thorax shorter and more rounded at the sides, and the elytra very finely punctate-

striate, with the interstices almost flat.

APTOPUS.

Aptopus, Eschscholtz, in Thon’s Archiv, ii. 1, p. 82 (1829) (part.) ; Candéze, Monogr. Elat. iii.

p. 230*. .

_ Aptopus, which may be easily known from its allies by the strongly pectinate tarsal

claws, is one of the most characteristic genera of Elateride in Mexico, extending north-

wards to Texas and southwards to Brazil. With one exception, the species are all

American. It agrees with Cardiophorus in having the carina separating the pronotum

from the propleure placed beneath and abbreviated in front. The Central-American

species, which all belong to Dr. Candéze’s Sect. I., appear to be in a plastic condition,

and they are very difficult to distinguish. A. lateralis, Er., is one of the most variable

Elaterids known to me.

a, Prothorax with more or less distinct intermixed larger punctures.

a’. Hind angles not or feebly divergent . . . . . . . . . . . . « Species 1-8.

b'. Hind angles divergent. . 2. 2... . 1... ee ee. Species 9.

6. Prothorax without intermixed larger punctures.

c'. Hind angles not or feebly divergent.

a". Body moderately elongate. . 2. . . 2. el Species 10-12.

6". Body elongate 2. 2... Species ]3.

d'. Hind angles distinctly divergent ; body elongate, narrow . . . . . . Species 14.

* The typical species briefly described by Eschscholtz, 4. ephippiger, from Bahia, and A. tibialis, from

Rrazil, are not mentioned by Candéze.

APTOPUS. 419

1. Aptopus pruinosus. (Tab. XIX. figg. 1, ¢; 14a, genitalia.)

Cardiophorus pruinosus, Erichs. in Germar’s Zeitschr. fiir Ent. ii. p. 329 (1840) *.

Aptopus pruinosus, Cand. Monogr. Elat. ili. p. 232”.

Hab. Mexico!, Tacambaro in Michoacan, Jalapa and Playa Vicente in Vera Cruz,

Oaxaca (Hége), Orizaba (coll. Janson), Tuxtla in Vera Cruz?, Etla, Juquila, and

Panistlahuaca in Oaxaca (Sallé), Tepetlapa in Guerrero (H. H. Smith), Temax in

North Yucatan (Gaumer); GuatemaLa, Zapote and San Gerdénimo (Champion).

Collected in plenty at Jalapa by Herr Hoge and at Zapote by myself. This is the

largest and most robust species of the genus. The antenne in the male are nearly

half the length of the body (less elongate in some specimens), shorter in the female.

The thorax is transverse in both sexes, and rather closely punctured, with coarser

punctures intermixed. The elytral interstices are moderately convex and somewhat

thickly punctured. Fresh specimens are thickly clothed with rather coarse silvery or

yellowish-cinereous pubescence, which is easily abraded. Some of the specimens from

San Gerdnimo, Juquila, and Panistlahuaca are doubtfully referred to this species, but

I am unable to separate them. A typical male from Tepetlapa is figured.

2. Aptopus collaris, (Tab. XIX. fig. 5, ¢.)

Elongate, robust, shining, somewhat sparsely clothed with long yellowish-cinereous pubescence ; piceous,

brown, or reddish-brown, the prothorax, except at the base and apex, rufous or obscure rufous, the

antenne ferruginous, the legs ferrugineo-testaceous. Head densely, finely punctate, dull; the frontal

carina sharply raised and obliquely declivous on either side, truncate in the middle; antenna slender,

fully one-half the length of the body in the male, shorter in the female. Prothorax broader than long,

considerably wider at the base than at the apex; the sides rounded and converging from the middle

forwards, rather strongly sinuate behind in the male, feebly so in the female; the hind angles moderately

produced ; the surface closely, finely punctate, the punctures becoming more scattered and more unequal

in size on the middle of the disc, and usually more or less distinctly canaliculate behind ; the base with a

rather long deep sulcus on either side. Elytra about three and one-fourth times the length of the

prothorax, and much wider than it, the sides a little rounded and gradually converging from about the

basal third to the apex in the male, more parallel in the female, the humeri rounded ; punctate-striate,

‘ the interstices moderately convex, flat on the disc in some specimens, and somewhat thickly punctured.

Beneath closely, finely punctate, the metasternum with distinct intermixed coarser punctures.

Length 103-13, breadth 3-32 millim.

Hab. Guatemata, near the city (Salvin), Duefias and San Gerénimo (Champion),

Chimaltenango (Conradt).

Ten specimens. ‘This insect is very closely allied to A. pruinosus, of which it may

be a colour-variety. The males apparently have longer antenne than in the corre-

sponding sex of A. pruinosus. None of the Mexican specimens of that species show

any tendency to a similar coloration of the thorax. A male from Dueiias is figured.

3H 2

420 SERRICORNIA.

8. Aptopus longipennis.

Elongate, rather narrow, somewhat sparsely clothed with long yellowish-cinereous pubescence ; brown, the

head and prothorax a little darker in colour than the elytra ; beneath piceous; the antenne piceous, with

the first joint and the base of each of the others ferruginous; the legs fusco-ferruginous. Head rather

sparsely, unequally punctate; antenne slender, extending to about the basal fourth of the elytra.

Prothorax broader than long, a little wider at the base than at the apex, rounded at the sides, the latter

feebly sinuate behind ; the hind angles rather short; the surface somewhat sparsely, unequally punctate,

the punctuation becoming a little closer towards the sides, the intermixed finer punctures less numerous

than the larger ones on the middle of the disc ; the base with a short deep sulcus on either side. Elytra

three and one-half times the length of the prothorax, and much wider than it, subparallel to the middle

and gradually narrowing thence to the apex ; finely punctate-striate, the interstices feebly convex, flatter

on the disc, and sparsely punctate. Beneath closely and finely punctured, the metasternum with con-

spicuous intermixed coarser punctures.

Length 93, breadth 2? millim. (¢.)

Hab. GuatemMaa, Totonicapam 10,000 feet (Champion).

One specimen. This species resembles A. pruinosus and its allies, but differs from

all of them in its relatively very elongate elytra and rather narrow shape. ‘The mixed

punctuation of the thorax and metasternum and the non-divergent thoracic hind angles

distinguish it from A. campylinus. .

4, Aptopus longicollis.

Elongate, shining, somewhat sparsely clothed with long yellowish-cinereous pubescence ; piceous-brown, or

obscure castaneous with the sides or the sutural region of the elytra broadly darker; the antenne and legs

ferrugineo-testaceous, the antenne sometimes darker. Head thickly punctured; antenne slender, half the

length of the body in the male, a little shorter in the female. Prothorax nearly or quite as long as broad

in the male, shorter in the female, moderately rounded at the sides, narrowing a little in front and behind,

the sides feebly sinuate before the base; the hind angles moderately produced; the surface sparsely,

finely punctate, with intermixed slightly finer punctures; the base with a short deep sulcus on either

side. Elytra elongate, much wider than the prothorax, subparallel to the middle and narrowing thence

to the apex, the humeri rounded; deeply punctate-striate, the stria rather coarsely punctured, the

interstices convex and sparsely punctate. Beneath densely, very finely punctate, with scattered coarser

punctures intermixed.

Length 103-113, breadth 3-33 millim. (¢ 9.)

Hab. Mexico, Amula in Guerrero (H. H. Smith), Jalapa (Hége), Panistlahuaca and

Juquila in Oaxaca (Sallé).

This insect is very closely allied to A. pruinosus; but when males of each from the

same localities are compared it is evident that the thorax in A. longicollis is more

elongate (considerably broader than long in the male of A. pruinosus) and more

sparsely punctate ; the elytral interstices are also less thickly punctured. ‘The females,

however, are scarcely separable.

5. Aptopus rufomarginatus. (Tab. XIX. fig. 6.)

Elongate, broad, robust, flattened above, shining, somewhat thickly clothed with yellowish-cinereous

pubescence ; black, the elytra with the sides from immediately below the humeri to the apex broadly

rufous ; the antenne and legs piceous, the tarsi obscure ferruginous. Head rather sparsely punctate ;

APTOPUS. 431

antenne slender, extending to a little beyond the humeri. Prothorax broader than long, wider at the

base than at the apex, the sides subparallel behind and gradually, arcuately converging from the middle

forwards; the hind angles short; the surface rather sparsely, finely punctate, with intermixed coarser

punctures ; the base with a short deep sulcus on either side. Elytra moderately elongate, much wider

than the prothorax, subparallel to the middle and narrowing thence to the apex, flattened on the disc,

the humeri rounded ; finely punctate-striate, the interstices moderately convex at the sides, flat on the

disc, and somewhat thickly punctured. Beneath closely, finely punctate, with distinct intermixed coarser

punctures on the middle of the ventral segments and on the metasternum; fifth ventral segment sub-

truncate and feebly emarginate at the apex.

Length 12, breadth 3% millim.

Hab, Mexico, Chiapas (Sal/é).

One specimen, no doubt a female. This insect is of about the same size and build

as A. pruinosus. It is flattened above; the elytra are broadly rufous at the sides, finely

punctate-striate, with the interstices almost flat on the disc; the legs and antenne

are infuscate. In the coloration of the elytra A. rufomarginatus resembles the vittate

form of A. vicinus, from which it differs in many respects. The emargination of the

fifth ventral segment may be due to accidental circumstances.

6. Aptopus chiriquensis.

Moderately elongate, robust, shining, somewhat sparsely clothed with yellowish-cinereous pubescence ; pitchy-

black, piceous, brown, or reddish-brown, the antenne and legs ferruginous. Head somewhat sparsely,

finely punctate ; antenne slender, about half the length of the body in the male, shorter in the female.

Prothorax considerably broader than long in both sexes, wider at the base than at the apex, moderately

rounded at the sides, the latter feebly sinuate behind ; the hind angles rather short ; the surface sparsely,

finely, unequally punctate, the punctuation becoming excessively fine towards the base; the base with

a short sulcus on either side. Elytra moderately long, much wider than the prothorax, slightly rounded

at the sides, narrowing from about the basal third to the apex; deeply punctate-striate, the interstices

convex and sparsely punctate. Beneath closely, finely punctate, the metasternum with a few intermixed

coarser punctures.

Length 83-94, breadth 23-3 millim. (d 2.)

Hab. Costa Rica (Van Patten); Panama, Volcan de Chiriqui (Champion).

Found in plenty by myself in Chiriqui. ‘This insect resembles A. pruinosus,

A. collaris, &c., from which it differs in having the head and thorax more sparsely

punctured, the elytra less parallel, and the pubescence sparser.

7. Aptopus vicinus. (Tab. XIX. fig. 8, ¢.)

Moderately elongate, rather narrow, shining, somewhat sparsely pubescent; pitchy-black, piceous, or brown ;

the antennee and legs ferruginous. Head rather sparsely punctate; antenne slender, half or more than

half the length of the body in the male, shorter in the female. Prothorax in the male very little wider

at the base than at the apex, and nearly as long as broad, shorter in the female, moderately rounded at

the sides, the latter feebly sinuate behind; the hind angles rather short; the surface somewhat closely,

finely, unequally punctate; the base with a deep sulcus on either side. Klytra moderately long, much

wider than the prothorax, slightly rounded at the sides, gradually narrowing from about the basal third

to the apex; deeply punctate-striate, the interstices convex and sparsely punctate. Beneath closely,

finely punctate, the metasternum with a few intermixed coarser punctures.

Var.? The elytra with a broad submarginal rufous or fulvous vitta extending from the shoulder to the apex.

Length 63-9, breadth 2-2? millim. (d 2.)

422 SERRICORNIA.

Hab. Guaremata, near the city, and Chinautla (Salvin), Duefias (Salvin, Champion),

Zapote, San Gerénimo (Champion), Tecpan (Conradt).

Found in plenty at Duefias and Zapote. This insect is perhaps nothing more than

a local form of A. chiriquensis, from which it differs in being less robust and narrower.

The males have the thorax nearly as long as broad and very little wider at the base

than at the apex, and the antenne very elongate. Some of the Zapote specimens have

the thorax more closely punctured. The variety is represented by three examples

from San Gerénimo, where also the typical form was obtained. A. vicinus may be

known from pallid examples of A. lateralis, var. concolor, by the more elongate

antenne in the male, as well as by the ferruginous legs and antenne.

A typical male from Duefias is figured.

8. Aptopus lateralis. (Tab. XVIII. figg. 23; 24, var. Sp; 25, var. y, basalis ;

26, var. e; 27, var. Z.)

Cardiophorus lateralis, Erichs. in Germar’s Zeitschr. fiir Ent. ii. p. 380 (1840) *.

Aptopus lateralis, Cand. Monogr. Elat. iii. p. 233, t. 4. figg. 4, 4a.

a. The prothorax rufous, with a black median vitta; the elytra black, each with a testaceous or rufo-

testaceous mark at the base; the legs piceous or black. (Fig. 23.)

Hab. Mexico 1 2 (coll. Janson), Puebla and Cuernavaca (Sallé), Cholula, Matamoros

Izucar, and Atlixco in Puebla, Mexico city (Hoge).

3. The prothorax entirely rufous ; the elytra as in a; the legs varying in colour from black to testaceous.

(Fig. 24.)

Aptopus lateralis, Cand., var. a, loc. cit.”

Hab. Mexico ® (coll. Janson), Durango city, Matamoros Izucar in Puebla, Tacambaro

in Michoacan (//6ge), Puebla, Cuernavaca, Guanajuato (Sallé), Chilpancingo in

Guerrero (Hoge, H. H. Smith), Tepetlapa in Guerrero (H. H. Smith).

y. The prothorax black ; the elytra as in a; the legs piceous or black. (Fig. 25.)

Cardiophorus basalis, Erichs. in Germar’s Zeitschr. fiir Ent. 11. p. 330%.

Hab. Mexico‘ (coll. Janson), Cuernavaca (Sallé, H. H. Smith), Chilpancingo (Hége).

6. The prothorax black ; the elytra testaceous, with the suture broadly, and sometimes the sides also, black ;

the legs brownish or black.

Hab. Mexico, Guanajuato (Sallé).

e. The prothorax black ; the elytra reddish-brown or testaceous, the suture sometimes very narrowly black ;

the legs brownish or black. (Fig. 26.)

Hat. Mexico, Durango city (Hége), Puebla, Cuernavaca, and Cordova (Sai/é),

Chilpancingo (Hoge, H. H. Smith).

Z. The prothorax rufous ; the elytra as in 6; the legs brownish or black. (Fig. 27.)

Hab. Mexico, Guanajuato (Sallé).

APTOPUS. 423

n. The prothorax rufous, with the base and apex black ; the elytra testaceous, with the suture narrowly, and

sometimes the sides also, black; the legs piceous.

Hab. Mexico, Guanajuato (Sallé).

9. The prothorax, and sometimes the head also, rufous or rufo-testaceous ; the elytra entirely testaceous or

rufo-testaceous ; the legs brownish or testaceous.

Cardiophorus spadiceus, Erichs. in Germar’s Zeitschr. fiir Ent. ii. p. 331°.

Aptopus spadiceus, Cand. Monogr. Elat. iii. p. 232°.

Hab. Muxtco® (coll. Janson, ex Candéze), Villa Lerdo in Durango, Chilpancingo

(Hoge), Amula in Guerrero (H. H. Smith), Jalapa®.

t. The prothorax and elytra entirely black ; the legs black or piceous.

Cardiophorus concolor, Erichs. in Germar’s Zeitschr. fiir Ent. ii. p. 329”.

Aptopus concolor, Cand. Monogr. Elat. iii. p. 233 °.

Hab. Mexico ® (coll. Janson), Durango city, Matamoros Izucar, Morelia in Michoacan

(Hoge), Puebla, Guanajuato, Cuernavaca, Oaxaca (Sallé), Chilpancingo and Amula in

Guerrero (H. H. Smith).

Upwards of one hundred examples have been examined of this very variable species.

I follow Candéze in adopting the name lateralis for it, in preference to basalis, which

would be much more applicable. Many of the varieties occur at the same localities,

at Guanajuato, Chilpancingo, Cuernavaca, &c., and there can be little doubt that they

belong to one species. Asin A. pruinosus, the punctures on the thorax are unequal

in size, and in some specimens they are finer and more scattered than in others. The

antenne are usually entirely piceous or black, but sometimes the basal one or two

joints are ferruginous or testaceous; in some examples of the var. spadiceus they are

entirely ferruginous. The females have the thorax broader and more rounded at the

sides (in some specimens as wide as the elytra), and the antenne shorter, than the

males.

A. lateralis is a little more cylindrical in shape than most of the allied forms. The

punctuation of the under surface is close and fine, and on the metasternum there are

coarser intermixed punctures. Erichson’s descriptions appear to have been made in each

case from single examples; his types (which I have not seen) are contained in the

Berlin Museum. ‘The insect is widely distributed over the Mexican plateau, from

Durango southwards to Vera Cruz and Guerrero.

We figure five specimens: a typical example from Cholula; a specimen of each

of the vars. B, y (Sasalis), and e«, from Chilpancingo; and one of the var. @ from

Guanajuato.

9, Aptopus erichsoni. (Tab. XIX. figg. 9, ¢; 9a, genitalia.)

Elongate, rather broad, moderately shining, sparsely clothed with long, fine, greyish pubescence ; reddish-brown,

piceous, or pitchy-black, the antenne and legs varying in colour from ferrugineo-testaceous to piceous,

424 SERRICORNIA.

the antenne with the basal joint sometimes ferruginous in the dark specimens. Head densely, finely

punctate; antenne slender, about half the length of the body in the male, slightly shorter in the female.

Prothorax convex, slightly broader than long, a little wider at the base than at the apex, rounded at the

sides, the latter sinuate before the base; the hind angles distinctly divergent; the surface closely finely

_ punctate, with slightly coarser punctures intermixed ; the base with a short deep sulcus on either side.

Elytra moderately elongate, considerably wider than the prothorax, subparallel to about the middle and

narrowing thence to the apex, the humeri rounded; deeply and coarsely punctate-striate, the interstices

convex and sparsely punctured. Beneath densely and finely punctate, with slightly coarser punctures

intermixed.

Length 93-114, breadth 3-35 millim. (¢ 9.)

Hab. Mexico, Chilpancingo in Guerrero, Jalapa in Vera Cruz (Hége).

Fifteen specimens. This insect is of about the same size and shape as A. pruinosus,

but differs from it in having the thorax more sinuous at the sides behind, with the hind

angles distinctly divergent ; the genitalia of the males are also differently formed.

A male from Chilpancingo is figured.

10. Aptopus uniformis.

Moderately elongate, feebly shining, rather sparsely clothed with long, fine, yellowish-cinereous pubescence ;

piceous, brown, or reddish-brown, the elytra in one specimen much paler than the prothorax ; the

antenne and legs testaceous or ferruginous. Head closely, finely punctate; antennae slender, half the

length of the body in the male, shorter in the female. Prothorax slightly broader than long, wider at

the base than at the apex, rounded at the sides, the latter feebly sinuate before the base; the hind angles

- rather short; the surface very closely, finely, uniformly punctate; the base with a deep sulcus on either

side. LElytra moderately long, considerably wider than the prothorax, subparallel to near the middle and

narrowing thence to the apex; deeply punctate-striate, the interstices convex and sparsely punctured.

Beneath closely, finely, uniformly punctate.

Length 62-83, breadth 2-23 millim. (¢ 2).

Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith), Guanajuato (Sa//é).

Five specimens. ‘This species may be chiefly distinguished amongst its allies by the

close, fine, uniform punctuation of the thorax. A. uniformis is allied to A. peregrinus,

Horn, from Texas, a specimen of which is before me, but differs from it in having the

thorax still more closely punctured, with the hind angles less divergent. It is less

elongate than A. omiltemanus.

11. Aptopus constrictus.

Moderately elongate, shining, somewhat sparsely clothed with yellowish-cinereous pubescence ; piceous, the

scutellum, the suture, and an indeterminate vitta on each elytron extending from the shoulder downwards

reddish-brown ; the antennx ferruginous, the legs ferrugineo-testaceous. Head closely punctured ;

antennex slender, half the length of the body in the male, a little shorter in the female. Prothorax

broader than long, about equal in width at the base and apex, moderately rounded at the sides in the

male, strongly so in the female, the sides feebly sinuate before the base; the hind angles rather short ;

the surface closely, uniformly, and very minutely punctate; the base with a short incision on either side.

Elytra moderately long, much wider than the prothorax, subparallel to the middle in the male, more

rounded at the sides in the female ; coarsely and deeply punctate-striate, the interstices convex through-

_ out and sparsely punctured. Beneath closely, finely, uniformly punctate.

Length 7-77, breadth 2-23 millim. (¢ 9.)

APTOPUS. 425

Hab. Mexico, Amula €000 feet and Omilteme 8000 feet, both in Guerrero

(H. H. Smith).

A male from Amula and a female from Omilteme. Allied to A. wniformis, but

differing therefrom in having the thorax more narrowed behind (the base and apex

being about equal in width), very minutely punctured, and with the basal sulci reduced

to a short incision on either side. The female, which is broader and more robust than

the male, differs from the same sex of A. wniformis in having more oval elytra.

12. Aptopus fuscipes.

Moderately elongate, shining, cinereo-pubescent, piceous, the antenne and legs fuscous. Head closely, finely

punctate ; antenne slender, extending to a little below the humeri. Prothorax slightly broader than

long, a little wider at the base than at the apex, rounded at the sides, the latter feebly sinuate before the

base; the hind angles short; the surface closely, finely punctate, the punctuation becoming slightly

finer towards the base; the base with a long, deep sulcus on either side. Elytra moderately long, much

wider than the prothorax, subparallel to the middle and narrowing thence to the apex; very deeply

punctate-striate, the interstices strongly convex throughout and sparsely punctured. Beneath closely,

finely punctate, without intermixed coarser punctures.

Length 73, breadth 23 millim.

Hab. Nicaracua, Chontales (Belt).

One specimen, in mutilated condition, resulting from the corrosion of the pin. This

insect closely resembles the Mexican A. lateralis, var. concolor, but is easily separable

from it by the uniform punctuation of the head, thorax, and under surface, there being

no trace of intermixed larger punctures. ‘The punctuation of the thorax is distinctly

sparser and coarser than in A. wniformis. The specimen described is the only repre-

sentative of the genus we have received from Nicaragua.

18. Aptopus omiltemanus.

Elongate, moderately shining, rather sparsely clothed with long, fine, fulvo-cinereous pubescence ; brown or

reddish-brown above, darker beneath, the antennze and legs testaceous or ferrugineo-testaceous. Head

closely, finely punctate; antennee slender, half the length of the body in the male, shorter in the female.

Prothorax slightly broader than long, broader and more convex in the female than in the male, a little

wider at the base than at the apex, feebly rounded at the sides, the latter slightly sinuate before the base ;

the hind angles a little divergent; the surface closely, finely, uniformly punctate; the base with a short

sulcus on either side. Elytra elongate, in the male about one-half, and in the female considerably, wider

than the prothorax, flattened on the disc, subparallel to the middle and narrowing thence to the apex ;

deeply striate, the strie rather finely punctured, the interstices convex, flatter towards the suture, and

sparsely, finely punctate. Beneath densely, finely punctate, with widely scattered intermixed slightly

coarser punctures on the metasternum and on the middle of the ventral segments,

Length 83-11, breadth 23-3} millim. (¢ Q.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (1. H. Smith).

Two males and one female. In this species the thorax in the male is very narrow

compared with the elytra, the latter being elongate and flattened. ‘The female closely

resembles the male of A. erichsoni, but may be known from it by its narrower and

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, December 1895. 3I

426 SERRICORNIA.

more parallel shape, the slightly shorter antenne, the less divergent hind angles of the

thorax, and the flatter elytra, the strize of the latter more finely punctured. The

elytra in the male are relatively broader than in the same sex of A. campylinus.

14. Aptopus campylinus. (Tab. XIX. fig. 11, 3.)

Cardiophorus campylinus, Erichs. in Germar’s Zeitschr. fiir Ent. ii. p. 333°.

Aptopus campylinus, Cand. Monogr. Elat. iii. p. 284, t. 4. figg. 5, 5a’.

Cardiophorus decumanus, Krichs. loc. cit. p. 382 °.

Cardiophorus linearis, Erichs. loc. cit. p. 332 *.

Hab. Mexico }~* (coll. Janson), Santa Clara in Chihuahua (fége), San Andres Tuxtla

(Sallé).

I have seen seven examples only of this species—three (¢ ) of a small black form

(two from San Andres Tuxtla and one in the Janson collection), which Candéze

describes under the name of campylinus; three (¢) of a much larger, brownish or

reddish-brown form (one from Santa Clara, from which our figure is taken, and two

in the Janson collection), belonging to his var. d; and one ( @ ), black, with the elytra

fuscous (from the Laferté collection). It seems to be as variable as its allies. The

largest specimens measure 9 millim. The synonymy is given on Dr. Candéze’s authority.

TRIPLONYCHUS.

Triplonychus, Candéze, Monogr. Elat. iii. p. 236 (1860).

A genus containing about a dozen described species, all from Tropical South

America. Three are now added from Central America. In two of these, as in

T. cingulatus, Cand., from Venezuela, the fourth tarsal joint is sublamellate, and the

tarsal claws are bicuspid, the basal tooth being obsolete. Triplonychus is chiefly

distinguished from Horistonotus by the irregular double series of punctures on the

elytra, these replacing the true strie. T°. ¢rivittatus has the fourth tarsal joint dilated ;

it will probably have to be separated from this genus.

Claws tricuspid ; fourth tarsal joint simple ; antenne short ; alternate elytral

interstices sharply carinate before the apex . . . . . ~ . . « Carinatus.

Claws bicuspid ; fourth tarsal joint sublamellate ; antennz elongate ; ; alternate

elytral interstices costate or subcostate before the apex.

Fourth tarsal joint dilated . 2. 2... . . ww... . trivittatus.

Fourth tarsal joint marrow. . . 1 ee ee ee ee parvuilus.

1. Triplonychus carinatus. (Tab. XIX. fig. 7.)

Very convex, moderately elongate, shining, finely and sparsely pubescent; black, with a brassy lustre, the

elytra brown, indeterminately testaceous at the base and apex ; the antenne black, with the two basal

joints rufo-testaceous ; the legs testaceous, the femora in great part piceous ; beneath black, the last two

ventral segments testaceous at the apex. Head thickly, finely punctate, the vertex with a shallow

depression in the middle; antennz slender, short, not nearly reaching the base of the prothorax. Pro-

TRIPLONYCHUS. 497

thorax very convex, as long as broad, rounded at the sides from the middle forwards, gradually and

obliquely narrowing behind; the hind angles rather obtuse; the surface thickly, finely punctate, the

disc smoother in the middle behind, deeply canaliculate before the base; the base incised on either side

near the hind angles. Elytra less than twice the length of, and narrower than, the prothorax, narrowing

from the base ; with irregular double series of fine punctures, the interstices smooth and strongly costate

to a little beyond the middle, the third, fifth, seventh, and ninth very sharply and acutely carinate thence

to the apex. Beneath closely, finely punctate. Claws tricuspid.

Length 43, breadth 14 millim.

Hab. Panama, San Feliz in Chiriqui (Champion).

One specimen, probably a female. Allied to 7. costatus and 7. lebasi, Cand., from

Tropical South America. The thorax is much more convex than in TZ. debasi, and the

elytral carine are very sharply raised.

2. Triplonychus trivittatus. (Tab. XIX. fig. 10, ¢.)

Moderately elongate, narrow, slender, shining, somewhat sparsely clothed with fine yellowish-cinereous pubes-

cence; testaceous, the head with a subtriangular or transverse patch on the vertex, in some specimens

extending over the greater part of the front, black or piceous; the prothorax witha broad median vitta and

a stripe on either side extending from the base to near the apex, the marginal stripe widening anteriorly

and in some specimens connected with the median vitta before and behind the middle, black or piceous ;

the scutellum fusco-testaceous or piceous; the elytra with the suture narrowly and the sides to a greater

or less extent fuscous or piceous, the marginal stripe sometimes extending inwards at the middle and at

the apex so as to partly enclose two oblong patches of the ground-colour on each elytron; beneath

piceous, sometimes in great part testaceous; the antenne piceous or brown, with the two basal joints

testaceous, in some specimens entirely testaceous ; the legs flavo-testaceous. Head closely, finely punctate,

obsoletely sulcate in the middle behind; antenne slender, rather more than half the length of the body.

Prothorax broader than long, moderately convex, very little wider at the base than at the apex, rounded

at the sides, the latter sinuate behind ; the hind angles rather short; the surface closely, finely, uniformly

punctate; the base sinuate and bi-incised on either side. Elytra about two and two-thirds longer than

the prothorax, and a little wider than it at the base, feebly rounded at the sides, narrowing from the

basal third to the apex, the humeri rounded ; sulcate, the sulci with irregular double series of fine punc-

tures, separated by convex, sparsely punctured interspaces, the alternate ones becoming costate before

the apex. Beneath closely, very finely punctate. Fourth tarsal joint dilated and excavate above for the

reception of the fifth joint. Claws bicuspid.

Length 43-6, breadth 13-13 millim. ( 6.)

Hab. Nicaracva, Chontales (Belt); Panama, Bugaba, San Feliz, Tolé (Champion).

Found in numbers by myself in Chiriqui; a single specimen only has been received

from Chontales. They appear to be all males. In this and the following species the

claws are bicuspid, as in Horistonotus exoletus and its allies; the fourth tarsal joint is

more or less dilated and sublamellate, as in Esthesopus ; and the elytra are sculptured

as in Triplonychus, that is to say they have irregular double series of punctures,

separated by raised interspaces. The present species resembles 7’. plagiatus, Er., from

Para, but it is a great deal smaller than that insect and much more finely puactured.

A male from Bugaba is figured.

8. Triplonychus parvulus. (Tab. XIX. fig. 13, ¢.)

Moderately elongate, narrow, slender, shining, finely pubescent; the head and prothorax black or piceous, the

312

428 SERRICORNIA.

front of the former and the anterior margin and hind angles of the latter testaceous or rufo-testaceous ;

the scutellum fusco-testaceous or piceous ; the elytra testaceous or flavo-testaceous, with the suture, and

the sides broadly from a little below the shoulder to about the middle and narrowly thence to the apex,

piceous ; beneath in great part piceous; the antenne black or piceous, with the two basal joints paler ;

the legs flavo-testaceous. Head closely, finely punctate, depressed in the middle in front in some specimens ;

antenne slender, about two-thirds the length of the body. Prothorax broader than long, about equal in

width at the base and apex, widest a little before the middle, the sides rounded anteriorly and strongly

sinuate behind; the hind angles rather narrow; the surface closely, finely, uniformly punctate; the

base bi-incised on either side. Elytra nearly three times the length of the prothorax, and wider than it

at the base, slightly rounded at the sides, narrowing from about the basal third, the humeri rounded ;

sulcate, the sulci with irregular double rows of fine punctures, the interspaces convex and with a few

scattered punctures, the alternate ones becoming subcostate before the apex. Beneath closely, finely

punctate. Fourth tarsal joint sublamellate. Claws bicuspid.

Length 33-33, breadth 7-1 millim. (<¢.)

Hab. Guatemaua, El Tumbador, Las Mercedes, and Cerro Zunil (Champion).

Eight specimens, all from the Pacific slope, and from elevations between 3000 and

5000 feet. Smaller, narrower, and more slender than 7 trivittatus, the thorax with

the anterior margin and hind angles only testaceous, the fourth tarsal joint less dilated.

The elytra are similarly coloured.

A male from Las Mercedes is figured.

HORISTONOTUS.

Horistonotus, Candéze, Monogr. Elat. iii. p. 243 (1860) ; Cat. Méthod. Elat. p. 135 (1891).

Amongst the Tropical-American Cardiophorini this genus is the most numerous in

species, and it is also well represented in the Southern States of North America.

Twenty are now recorded from within our limits, fifteen of which are described as new.

They belong to four well-defined groups, easily separable by the form of the tarsal

claws. The first two would perhaps be better treated as generically distinct. The

tarsal claws in the first group, which includes H. eroletus and its allies, are bicuspid,

and also dilated towards the base; they are formed exactly as in some of the species of

Triplonychus, i.e. T. cingulatus, Cand., T. trivittatus, and T. parvulus. The single

species of the second group, 7. dilaticornis, differs from all the others in the form of

the front and antenne, as well as in the form of the claws. In one species of the third

group, H. apterus, the body is not winged, this insect approaching very closely the

genus Coptostethus.

a. Claws bicuspid, the teeth subequal in length; prothorax with the base

bi-incised on either side, the punctuation mixed; antenne slender; frontal

carina prominent; scutellum concave.

a’. Alternate elytral interstices costate before the apex.

a". Elytra narrowing almost from the base.

al". Elytra deeply punctate-striate ; the interstices convex throughout . ewxoletus.

6". Elytra shallowly and finely punctate-striate; the interstices feebly

convex or almost flat on the anterior half . . . . . 2)... pedestris.

HORISTONOTUS, 429

6". Elytra more parallel in front, narrowing from about the middle; the

interstices convex throughout. . . . . . . . . . . . . rufventris.

6'. Alternate elytral interstices not costate before the apex. . . . . . . hemorrhoidalis.

6. Claws bicuspid, the inner tooth very short and fine; prothorax with a single

short deep sulcus on either side at the base, the punctuation mixed ;

antenne very elongate, the joints from the third dilated; frontal carina

deflexed in the middle; scutellum concave . . . . adilaticornis.

c. Claws sharply or rectangularly dilated from the middle to , the base ; ; frontal

carina prominent; antenne slender.

c'. Prothorax without notches or sulci at the base, the punctuation mixed ;

scutellum convex or feebly convex ; prothorax and elytra subparallel

towards the base.

c". Prothorax with the base sinuous on either side, the larger intermixed

punctures becoming much coarser on the anterior half, fine at the

base 2 wee eee ee ee ee. obliteratus.

d", Prothorax with the base subtruncate on either side, the larger inter-

mixed punctures becoming coarser towards the sides and base, those

in the transverse basal depressions very coarse and conspicuous . . ¢runcatus.

d'. Prothorax with a long sulcus on either side at the base, the punctuation

mixed; scutellum concave; elytra narrowing almost from the base, the

apical interstices costate, the apices obtuse . . . . . . . . |) .) Sulcifer.

e’. Prothorax with a shorter sulcus on either side at the base, the punctuation

mixed ; scutellum flattened; elytra narrowing from about the middle,

the apical interstices not costate, the apices somewhat pointed. . . . spernendus.

f'. Prothorax bi-incised on either side at the base; scutellum concave or

flattened.

e". The prothoracic punctuation mixed ; the elytra moderately rounded at

the sides, or subparallel towards the base.

c". Elytra deeply punctate-striate, the interstices more or less convex.

a‘. Antenne ferruginous or testaccous.

a’. Upper surface opaque, thickly pubescent; prothorax densely

punctured. 2 2 1 ee eee ee eee ww ee auplicatus.

b°. Upper surface more or less shining, more sparsely pubescent ;

prothorax less densely punctured.

a’. Prothorax subparallel behind . . . . «. + « « « « « flavipes.

6°. Prothorax more or less narrowed behind.

a’. Elytra unicolorous.

a?. Prothorax feebly convex, moderately rounded at the sides,

the larger intermixed punctures coarse . . . . . mixtus.

b°. Prothorax convex, strongly rounded at the sides, the

larger intermixed punctures finer. . . . . . . . rotundicollis.

b". Elytra with the base to a greater or less extent and a median

fascia rufo-testaceous, the markings sometimes reduced to

a small basal patch; the intermixed larger punctures on

the prothorax distinct only at the apex... oe 1 bicinetus.

430 SERRICORNIA.

b'. Antenue pitchy-black ; prothorax subparallel behind. . . - - nigricornis.

d'". Elytra with rows of coarse punctures placed in shallow strie, the

interstices flat; the head and prothorax densely punctured, the

larger punctures coarse and closely placed on the anterior part of

the thorax, as well as on the head; prothorax rounded at the sides . drunneus.

if". The prothoracic punctuation uniform, fine; the elytra oval or suboval.

‘. Body winged, rufo-testaceous or reddish-brown, the elytra maculate.

ve Elytra with a transverse dark median fascia, the interstices

convex... . . . oe we ee) fasciatus.

d’. Elytra with a common discoidal black pateh, ‘the interstices flat

towards the suture . . . . «© «© + e+ 8 es . . « discoideus.

d‘. Body apterous, brown ; elytra short, without definite markings, the

interstices convex . . . . . 2. ee) apterus.

d. Claws simple; prothorax bi-incised on either side at the base, the punctua-

tion mixed; scutellum concave; frontal carina prominent; antenne

slender. 2. 2... ee ee ee ee ee ee ee zenilensis.

1. Horistonotus exoletus.

Cardiophorus exoletus, Erichs. in Germar’s Zeitschr. fiir Ent. 11. p. 825’

Horistonotus exoletus, Cand. Monogr. Elat. iii. p. 257°; Horn, Trans. Am. Ent. Soc. xu. p. 39°.

Cardiophorus fervidus, Chevr. De}. Cat. 3rd edit. p. 104°.

Hab. Norta America, S.W. Texas ?.—MeExico 4 (col/. Janson), Playa Vicente, Jalapa,

Tapachula (Hége), Teapa in Tabasco (Pilate, Hoge, H. H. Smith); British Honpuras,

Rio Hondo (Blancaneaux); GuateMALa, Panzos, Teleman, Senahu, Chacoj, Cahabon,

and San Gerdnimo in Vera Paz, Rio Naranjo, Pantaleon (Champion); Panama, Bugaba,

Volcan de Chiriqui (Champion).—CoLomBIA!?; VENEZUELA; Brazit; PERv?.

This is the commonest species of the genus within our limits. It varies in colour

from rufo-testaceous to piceous or pitchy-black. ‘The elytral interstices are convex

throughout, the second, third, fifth, seventh, and ninth being strongly costate before

the apex. One of the two specimens from San Gerdnimo, a male, is more elongate

than usual, and almost black. A male (amongst a large series) from Teapa is also

unusually elongate, and has the elytra very coarsely and deeply punctate-striate. ‘The

four ( 2 ) specimens from Teleman have the alternate elytral interstices only moderately

raised before the apex. All these appear to be nothing more than extreme forms of a

widely distributed species.

2. Horistonotus pedestris.

Horistonotus pedestris, Cand. Elat. Nouv. iii. p. 84 (1881) ’.

Hab. GuatEMALA?, Capetillo, Cerro Zunil (Champion).

We possess three male examples of this species, the type (¢) of which has been

communicated by Dr. Candéze. It is closely allied to H. evoletus, but has the thorax

HORISTONOTUS. 45]

more sinuate at the sides behind, and the elytra more finely punctate-striate, the

interstices feebly convex or almost flat from the base to the middle, the alternate ones

slightly costate before the apex; the antenne are also more elongate inthe male. ‘The

colour is equally variable.

8. Horistonotus rufiventris.

Horistonotus rufiventris, Cand. Elat. Nouv. iii. p. 84 (1881).

Hab. Mexico, Cosamaloapan in Vera Cruz (Sallé); Guatemata}, Cerro Zunil, San

Gerénimo (Champion); Nicaracua (coll. Janson); Costa Rica (coll. Janson); Panama,

Volcan de Chiriqui (Champion).

Found in numbers at San Gerdénimo. Very like H. exoletus, but smaller and less

elongate; the elytra are more gradually narrowed behind, with the interstices convex

throughout, the alternate ones costate before the apex. ‘The type has been communi-

cated by Dr. Candéze; it is considerably larger than most of our specimens, the

smallest males measuring only 54 millim.

4. Horistonotus hemorrhoidalis.

Moderately elongate, rather slender, narrow, shining, somewhat thickly clothed with yellowish-cinereous

pubesence; piceous or pitchy-black, the anterior margin of the prothorax towards the sides, and some-

times the tips of the hind angles also, rufo-testaceous, the humeri and the apical margin of the elytra

indeterminately reddish-brown ; beneath paler than above, in some specimens ferruginous, with the sides

piceous; the antenn and palpi testaceous, the legs flavo-testaceous. Head finely punctate, with inter-

mixed coarser punctures ; antennz slender, fully half the length of the body in the male, a little shorter

in the female. Prothorax about as Jong as broad, moderately convex, considerably wider at the base

than at the apex, the sides feebly rounded and converging from the middle forwards, and feebly sinuate

and slightly converging behind; the hind angles moderately produced; the surface thickly, minutely

punctate, with intermixed coarser punctures; the base sinuate and bi-incised on either side. Elytra

about two and two-thirds longer than the prothorax, and a little wider than it at the base, distinctly

rounded at the sides, narrowing from the basal third to the apex, the humeri rounded externally ; deeply

punctate-striate, the interstices feebly convex and sparsely punctate. Beneath minutely punctate, with

intermixed coarser punctures. Claws bicuspid.

Length 43-6}, breadth 12-2? millim. (d¢ 2.)

Hab. Guatemaa, Senahu, San Juan, and Sinanja in Vera Paz (Champion).

Hight specimens, all from the mountain-slopes in the vicinity of the Polochic valley.

This species is allied to H. exoletus, H. rufiventris, &c., from which it differs in its

small size and the non-costiform alternate apical interstices of the elytra.

5. Horistonotus dilaticornis. (Tab. XIX. figg. 12, ¢; 12a, antenna; 128,

prothorax ; 12 ¢, claw.)

Elongate, rather narrow, convex, shining, finely and sparsely cinereo-pubescent ; testaceous, the apex of the elytra

and the last ventral segment slightly infuscate. Head minutely punctate, with much coarser punctures

intermixed, broadly depressed in the middle between the eyes, the latter very large, the front declivous,

the frontal carina bent downwards in the centre; antenne more than half the length of the body, the

joints from the third opaque and closely punctured, dilated, serrate, and increasing in length, 2 small,

432 SERRICORNIA.

3 triangular, twice the length and twice the width of 2, 11 elongate, a little longer and narrower than 10.

Prothorax convex, nearly as long as broad, almost square, slightly narrowed in front, the sides feebly

sinuate before the base; the hind angles acute and moderately long ; the surface closely, minutely punc-

tate, with scattered coarser punctures intermixed; the base abruptly incised on either side, and with a

short deep sulcus extending forwards from it. Elytra nearly three times the length of the prothorax,

and wider than it at the base, narrowing from a little below the base to the apex; deeply punctate-

striate, the interstices very convex, becoming narrowly costate before the apex, and minutely punctate.

Beneath closely, minutely punctate, with scattered coarser punctures intermixed. Claws bicuspid, the

inner tooth short and very fine.

Length 7, breadth 2 millim. (¢.)

Hab. GuatemaLta, Champerico (Champion).

One example. This species differs from all its allies in the form of the antennae,

claws, and front. The base of the thorax has a single notch on either side, from

which a short deep sulcus extends forwards.

6. Horistonotus obliteratus.

Moderately elongate, not very convex, shining, sparsely clothed with fine yellowish-cinereous pubescence ;

brown or rufo-castaneous, the anterior and hind angles of the prothorax and the base of the elytra

rufescent in dark examples ; the antenne ferruginous, the legs testaceous. Head finely punctured, with

numerous coarse punctures intermixed; antenne slender, extending very little beyond the base of the

prothorax in the female, longer in the male. Prothorax much broader than long, moderately convex,

considerably wider at the base than at the apex, the sides rounded anteriorly and subparallel from the

middle to the base; the hind angles rather obtuse, excavated above for the reception of the humeri; the

surface closely, minutely punctate, with intermixed scattered coarse punctures, the latter conspicuous on

the anterior half and at the sides, becoming finer towards the base; the base sinuate on either side,

without trace of notches or sulci. Elytra about two and one-half times the length of the prothorax, and of

the same width at the base, slightly flattened on the disc, subparallel to the middle and narrowing thence

to the apex, the humeri subangular and somewhat prominent; rather coarsely punctate-striate, the

interstices feebly convex, almost flat towards the suture, and sparsely punctured. Beneath very finely,

closely punctate, with coarse punctures intermixed. Claws rectangularly dilated from the middle to

the base. ,

Length 5-63, breadth 14-23 millim. (¢ 2.)

Hab. Muxico, Huetamo in Michoacan (Hodge), Teapa in Tabasco (coll. Janson),

Yucatan (Pilate, in coll. Janson), Temax in North Yucatan (Gaumer); Guatema.a,

San Gerdénimo (Champion) ; Nicaracua, Chontales (Janson).

Seven specimens, varying greatly in size and colour, the single examples from Teapa

and Chontales being very small. This insect closely resembles Esthesopus humilis,

Cand. (except that there are no coarse punctures at the base of the thorax), and one of

the two specimens doing duty for that species in the Janson collection, determined by

Candéze himself, belongs to H. obditeratus, it having the fourth tarsal joint simple.

The present species is nearly allied to the Antillean H. asthenicus, Cand., but it is more

elongate and more parallel, with the thorax wider in front. The coarse scattered

punctures on the thorax are conspicuous on the anterior half and at the sides.

HORISTONOTUS. . 433

7. Horistonotus truncatus. (Tab. XIX. figg. 14; 14a, prothorax.)

Moderately elongate, not very convex, shining, sparsely clothed with fine yellowish-cinereous pubescence ;

pitchy- or reddish-brown, the anterior angles and the base of the prothorax and the base of the elytra

indeterminately rufescent or testaceous; the antenne ferruginous, the legs testaceous. Head finely

punctured, with numerous coarse punctures intermixed; antenne slender, extending to a little beyond

the humeri. Prothorax much broader than long, feebly convex, much wider at the base than at the apex,

the sides moderately rounded anteriorly and subparallel behind; the hind angles rather short and exca-

vated above for the reception of the humeri; the surface closely, very finely punctate, with intermixed

scattered coarser punctures, the latter becoming much coarser towards the sides and base, those in the

transverse basal depressions very coarse and conspicuous; the base subtruncate on either side towards

the hind angles, without trace of sulci. Scutellum convex. LElytra about two and one-half times the

length of the prothorax, and of the same width at the base, slightly flattened on the disc, subparallel to

the middle and narrowing thence to the apex, the humeri subangular; rather coarsely punctate-striate,

the interstices feebly convex, flatter towards the suture, and sparsely punctured. Beneath very finely,

closely punctate, with coarse punctures intermixed. Claws rectangularly dilated from the middle to

the base.

Length 6, breadth 2 millim.

Hab. Panama, Bugaba and Caldera in Chiriqui (Champion).

Two specimens, probably male and female. Very near H. obliteratus, but differing

from it in having the thorax subtruncate at the base, with the larger punctures very

much finer on the anterior part of the disc, and the coarse ones at the base obsolete,

and the scutellum more convex. J. truncatus closely resembles Esthesopus humilis,

and has similar coarse conspicuous punctures at the base of the thorax (those on the

anterior part of the disc, however, are very much finer); but may be known from it by

the simple fourth tarsal joint, the more transverse thorax, the more coarsely punctured

elytral strie, &c.

8. Horistonotus sulcifer. (Tab. XIX. figg. 15; 15a, prothorax.)

Rather short, moderately convex, shining, thickly clothed with fine greyish pubescence ; piceous or pitchy-

black, the anterior angles of the prothorax rufescent, the legs and antenne testaceous. Head closely,

very finely punctate, with scattered intermixed much coarser punctures ; antenne slender, short, about

reaching the hind angles of the prothorax. Prothorax slightly broader than long, considerably wider at

the base than at the apex, moderately rounded at the sides, narrowed behind; the hind angles rather

short; the surface closely, very finely punctate, with scattered intermixed much coarser punctures,

canaliculate behind; the base with a long, oblique, and very distinct sulcus on either side. Scutellum

concave. Elytra about twice the length of the prothorax, and of the same width at the base, the sides

rounded and rapidly narrowing from a little below the base, and distinctly sinuous before the apex,

the apices subtruncate ; deeply punctate-striate ; the interstices convex, almost flat on the basal part of

the disc, and becoming about equally costate before the apex, closely, very minutely punctate, with widely

scattered coarser punctures intermixed. Beneath similarly punctured. Claws rectangularly dilated from

the middle to the base.

Length 51-6}, breadth 13-2 millim.

Hab. Mexico, Tapachula in Chiapas (Hége); Guatemata, Champerico (Champion).

Five specimens, apparently including both sexes, all from the vicinity of the Pacific

coast. This species may be known from most of the allied forms by the long oblique

sulcus on either side of the thorax at the base. The elytra are short and narrowed from

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 1, December 1895. 3K

434 SERRICORNIA.

a little below the base, the interstices costate before the apex. There is a double system

of punctuation, above and beneath. The South-American H. tetraspilotus (Guér.) and

H. crucifer, Cand., have similar long oblique sulci on the thorax at the base. A

Champerico specimen is figured.

9. Horistonotus spernendus.

Cardiophorus spernendus, Erichs. in Germar’s Zeitschr. fiir Ent. ii. p. 320°.

Horistonotus spernendus, Cand. Monogr. Elat. iii. p. 261”.

Hab. Mexico, Tapachula in Chiapas (Hége); Guatemata, Yzabal (Sad/é), San

Gerdnimo, Zapote, Rio Naranjo (Champion); Panama, San Feliz in Chiriqui (Champion).

—CoromBiaA!2; VenezueLa?; Amazons, Para 2.

Ten examples, one or two from each locality. This small species has a well-defined

sulcus at the base of the thorax on either side, the base itself subtruncate between

this and the broad median lobe.

10. Horistonotus duplicatus.

Elongate, rather convex, opaque, thickly clothed with yellowish-cinereous pubescence; piceous or brown, the

antenne ferruginous, the legs testaceous, the under surface piceous or reddish-brown. Head densely,

finely punctate, with coarse punctures intermixed ; antenne rather slender, short, about reaching the

hind angles of the prothorax in the female, a little longer in the male. Prothorax very convex, a little

broader than long, not much wider at the base than at the apex in the female, the sides strongly rounded

from the middle forwards and gradually and somewhat obliquely converging behind; the hind angles

moderately produced; the surface densely, finely punctate, with indistinct intermixed scattered coarser

punctures, which extend to the base, canaliculate behind; the base sinuate and bi-incised on either side.

Scutellum concave. Elytra two and one-half times the length of the prothorax, and of about the same

width at the base, narrowing from the basal third, the humeri rounded; coarsely punctate-striate, the

interstices convex and thickly punctured. Beneath densely, very finely punctate, with intermixed coarser

punctures. Claws rectangularly dilated from the middle to the base.

Length 53-63, breadth 17-25 millim. (¢ 9.)

Hab. Mexico, Tapachula in Chiapas (Hége).

One pair. This species chietly differs from its allies in the fine, dense punctuation

of the thorax, with scattered coarser punctures intermixed, which are not easily seen

till the pubescence is removed. The surface is opaque and thickly pubescent. The

sides of the thorax are almost straight, but gradually and obliquely converging, behind.

It does not accord with any of the species described by Dr. Horn.

11. Horistonotus flavipes.

Moderately elongate, rather convex, shining, sparsely clothed with fine yellowish-cinereous pubescence ; black,

piceous, or obscure reddish-brown, the front of the head and the anterior margin and hind angles of the

prothorax sometimes rufescent; the legs and antenne testaceous. Head sparsely, rather coarsely punc-

tate, with a few fine punctures intermixed; antenne slender, rather short, extending to a little beyond

the humeri. Prothorax convex, broader than long, much wider at the base than at the apex, the sides

rounded and converging anteriorly and subparallel behind; the hind angles rather short and excavated

above for the reception of the humeri; the surface very finely, somewhat sparsely punctate, with inter-

HORISTONOTUS. 435

mixed scattered moderately coarse punctures, which become more distinct towards the sides and apex and

do not extend to the basal portion of the dise; the base sinuate and deeply bi-incised on either side.

Elytra about two and two-thirds longer than the prothorax, and of the same width at the base, feebly

rounded at the sides, widest at about one-third from the base, and narrowing thence to the apex, the

humeri rather prominent in front; deeply punctate-striate, the interstices feebly convex, flatter towards

the suture, and sparsely punctate. Beneath closely, very finely punctate, with scattered coarser punctures,

these latter coarser on the metasternum and first ventral segment than on the other parts. Claws

rectangularly dilated from the middle to the base.

Length 6-83, breadth 2-3 millim. (¢ Q.)

Hab. Mexico, Cerro de Plumas, Jalapa (Hége), Orizaba (coll. Janson), Temax in

North Yucatan (Gawmer); GuatemaLa, Chinautla (Salvin), Duefias, San Gerdénimo

(Champion).

Thirteen examples, varying greatly in size. This insect resembles /. obliteratus,

but differs from it in having the base of the thorax deeply bi-incised on either side ;

the larger intermixed punctures on the thorax are also much finer, and the elytra are

more rounded at the sides. The simple fourth joint of the tarsi separates it from

Esthesopus hepaticus and its allies.

12. Horistonotus mixtus.

Elongate, moderately convex, feebly shining, sparsely clothed with fine yellowish-cinereous pubescence ;

piceous, the antenne and legs testaceous. Head finely punctured, with numerous coarse punctures inter-

mixed; antenne slender, extending slightly beyond the humeri in the female, a little longer in the male.

Prothorax slightly broader than long, not very convex, moderately rounded at the sides, not much wider

at the base than at the apex, narrowing a little behind; the hind angles rather short; the surface closely,

finely punctate, with scattered, very distinct, coarse punctures intermixed ; the base sinuate and bi-incised

on either side. Elytra two and two-thirds longer than the prothorax, and a little wider than it at the

base, slightly rounded at the sides, narrowing from the middle, the humeri rounded ; deeply punctate-

striate, the interstices feebly convex and somewhat thickly punctured. Beneath closely, very finely

punctate, with intermixed coarser punctures, the latter becoming very conspicuous on the propleure.

Claws broadly rectangularly dilated from the middle to the base.

Length 63-84, breadth 23-23 millim. (¢ 2.)

Hab. Mexico, Vera Cruz, Yolos in Oaxaca (Sal/é).

A male from Yolos and a female from Vera Cruz. Allied to H. duplicatus, but

more sparsely pubescent, less densely punctured, and more shining; the intermixed

punctures coarser and much more distinct, those on the propleure especially, the

antennz longer, the elytra more rounded at the sides, the thorax less narrowed behind.

The female is much smaller than the male, and has more obtuse hind angles to the

prothorax.

13. Horistonotus rotundicollis.

Elongate, robust, moderately shining, sparsely clothed with fine yellowish-cinereous pubescence ; piceous,

the antenne ferruginous, the legs ferrugineo-testaceous. Head coarsely but shallowly umbilicate-

punctate, with a few fine punctures intermixed, the eyes large and smooth ; antenne slender, extending

to a little beyond the humeri. Prothorax convex, considerably broader than long, very little wider at the

base than at the apex, the sides strongly rounded from the middle forwards and obliquely converging

3K 2

436 SERRICORNIA.

behind; the hind angles rather short; the surface thickly, very finely punctate, with slightly coarser

punctures intermixed; the base sinuate and bi-incised on either side. Elytra about two and one-third

times the length of the prothorax, and of the same width at the base, a little rounded at the sides,

narrowing from the middle, the humeri rounded; coarsely punctate-striate, the interstices convex and

very sparsely, finely punctate. Beneath closely, very finely punctate, with scattered coarse punctures

intermixed. Claws broadly and sharply toothed at the middle.

Length 7, breadth 22 millim.

Hab. Mexico, Tepetlapa in Guerrero (H. H. Smith).

One specimen, probably a female. This insect resembles H. miaxtus, but it has the

thorax more convex, with the sides more rounded and the larger intermixed punctures

much finer; the punctures of the elytral striee are coarser, and the interstices more

convex. It is more shining than H. duplicatus, with the pubescence sparser and finer,

the thorax more rounded at the sides, and more sparsely punctate.

14. Horistonotus bicinctus. (Tab. XIX. figg. 16, ¢; 16a, prothorax.)

Moderately elongate, not very convex, shining, rather sparsely clothed with fine yellowish-cinereous

pubescence; pitchy-black, piceous, or brown, the head rufous in front, the prothorax with the anterio

margin or the anterior angles testaceous, the hind angles and the scutellum sometimes of the same colour ;

the elytra each with a large patch on the dise at the base, sometimes extending completely across, and an

angulated fascia beyond the middle, rufo-testaceous or rufous; beneath in great part piceous, reddish at

the sides ; the legs and antenne testaceous. Head somewhat coarsely punctate; antenne slender, more

than half the length of the body in the male. Prothorax considerably broader than long, much wider at

the base than at the apex, moderately rounded at the sides, somewhat obliquely narrowed in front and

behind; the hind angles moderately produced ; the surface thickly, very finely punctate, with a few

intermixed coarser punctures towards the apex; the base bi-incised on either side. LElytra about two

and one-half times the length of the prothorax, and slightly wider than it at the base, distinctly rounded

at the sides, narrowing from a little before the middle, the humeri rounded; rather deeply punctate-

striate, the interstices feebly convex and minutely punctate. Beneath closely, finely, uniformly punctate.

Claws rectangularly dilated from the middle to the base.

Var. a. The post-median fascia of the elytra almost obsolete.

Var. 3. Brown or reddish-brown, the elytra with the base narrowly and indeterminately rufescent.

Length 5-53, breadth 14-2 millim. (¢ 2.)

Hab. GuaTeMALA, San Juan in Vera Paz (Champion); Panama, Volcan de Chiriqui

(Champion).

Twelve specimens—five of the typical form and two of the var. « from Vera Paz,

and five of the var. 8 from Chiriqui. Allied to the South-American Z. erucifer, Cand.,

but without the long sulcus on either side of the base of the thorax. The head and

thorax are almost uniformly punctate, the intermixed larger punctures being distinct

at the apex only; the punctures on the head, however, are coarser than those on the

thorax. A typical male from San Juan is figured.

15. Horistonotus nigricornis.

Moderately elongate, narrow, shining, sparsely clothed with rather coarse yellowish-cinereous pubescence ;

pitchy-black, the anterior angles of the prothorax testaceous, the humeri indeterminately brownish; the

antenne pitchy-black; the apical joint of the maxillary palpi piceous, the legs flavo-testaceous. Head

HORISTONOTUS. 437

thickly and somewhat finely punctured, with a few minute punctures intermixed; antenne slender,

extending to some distance beyond the humeri. Prothorax about as long as broad, moderately convex,

much wider at the base than at the apex, the sides somewhat obliquely converging from the middle

forwards and almost parallel behind ; the hind angles moderately produced ; the surface rather sparsely,

minutely punctured, with about an equal number of slightly coarser punctures intermixed ; the base

sinuate and bi-incised on either side. Elytra two and two-thirds longer than the prothorax, and a

little wider than it at the base, distinctly rounded at the sides, and narrowing from the basal third to

the apex, the humeri rounded externally ; deeply punctate-striate, the interstices feebly convex and

sparsely punctate. Beneath minutely punctate, with intermixed coarser punctures. Claws rectangularly

dilated from the middle to the base.

Length 4, breadth 13 millim.

Hab. Guatemana, Purula in Vera Paz (Champion).

One specimen. This inconspicuous species greatly resembles H. hemorrhoidalis,

but may be at once known from it by the form of the claws; it is also smaller and less

elongate, the antenne are much shorter and pitchy-black, and the finer intermixed

punctures on the thorax are less numerous.

16. Horistonotus brunneus.

Horistonotus brunneus, Cand. Ann. Soc. Ent. Belg. 1889, p. 111 (Elat. Nouv. iv. p. 45) *.

Hab. Mexico}.

We have not received a specimen of this very distinct species, the abraded ( ¢ ) type

of which has been communicated by Dr. Candéze. The punctuation of the head and

thorax is dense, the conspicuous larger punctures being closely placed towards the

apex of the thorax and on the head. ‘The elytra have rows of coarse punctures placed

in very shallow striz, the interstices being flat and thickly punctate. ‘The thorax is

much broader than long, with the base strongly sinuate and bi-incised on either side.

17. Horistonotus fasciatus. (Tab. XIX. fig. 17, ¢.)

Short, convex, shining, thickly pubescent ; rufo-testaceous, the elytra with a rather broad median fascia,

extending down the suture to near the apex, black or piceous; the antenne and legs testaceous. Head

closoly, somewhat coarsely punctate ; antenne slender, half the length of the body in the male, a little

shorter in the female. Prothorax much broader than long, slightly wider at the base than at the apex,

rounded at the sides, obliquely narrowed behind; the hind angles moderately produced and rather obtuse ;

the surface closely, finely, uniformly punctate; the base sinuate and bi-incised on either side. Elytra

oval, about two and one-half times longer than the prothorax, and of the same width at the base; deeply

punctate-striate, the interstices moderately convex throughout, and minutely punctured. Beneath closely,

finely, uniformly punctate. Claws rectangularly dilated from the middle to the base.

Var. The elytral markings obliterated. ‘

Length 41-44, breadth 1? millim. (d 2.)

Hab. Mexico, Acapulco (Hoge).

Ten specimens. Allied to H. unitinctus, Cand., from Brazil, but broader, the thorax

and elytra more rounded at the sides, the thorax more narrowed behind. As in

many other species of the genus, the base of the thorax has two deep notches on

either side near the inner limit of the hind angles.

438 SERRICORNIA.

18. Horistonotus discoideus. (Tab. XIX. fig. 18.)

Moderately elongate, rather convex, shining, sparsely clothed with fine yellowish-cinereous pubescence ;

reddish-brown or brown, the hind angles of the prothorax paler, the head infuscate in one example; the

elytra testaceous or brownish-testaceous, with a large common patch at the middle, and a short marginal

stripe opposite to it piceous or pitchy-black, the median patch sometimes extending to the apex or

connected laterally with the marginal stripe ; beneath ferruginous, the abdomen, and sometimes the pro-

pleure also, in great part piceous; the antenne and legs testaceous. Head sparsely, finely punctate ;

antenne slender, nearly half the length of the body in the male. Prothorax much broader than long, a

little wider at the base than at the apex, rounded at the sides ; the hind angles moderately produced and

rather obtuse; the surface very finely, sparsely, uniformly punctate ; the base sinuate and bi-incised on

either side. Elytra suboval, two and one-half times the length of the prothorax, and of the same width

at the base; finely, but rather deeply punctate-striate, the interstices feebly convex, flat on the disc, and

sparsely, minutely punctate. Beneath very finely, thickly, uniformly punctate. Claws rectangularly

dilated before the middle to the base.

Length 42-6, breadth 1#-2 millim. (¢ 9.)

Hab. Mexico, Jalapa (foge).

‘Three examples. In coloration this species resembles H. crucifer, Cand., from

Brazil, except that the common discoidal patch on the elytra does not extend broadly

along the suture to the base; it may be known from that insect, however, by the

absence of the long basal sulci on the thorax, and by the thorax and elytra being more

rounded at the sides. It is more elongate than H. fasciatus and H. unitinctus.

19. Horistonotus apterus. (Tab. XIX. fig. 19, 2.)

Short, moderately broad, convex, shining, somewhat sparsely clothed with fine yellowish-cinereous pubescence ;

brown or reddish-brown, the base of the elytra indeterminately paler, the front of the head and of the

prothorax sometimes reddish, the legs and antenne testaceous. Head thickly, somewhat coarsely punc-

tate; antenne slender, more than half the length of the body in the male, slightly shorter in the female.

Prothorax broader than long, a little wider at the base than at the apex, widest at the middle, rounded

at the sides, the latter somewhat obliquely converging in front and behind; the hind angles moderately

long ; the surface thickly, very finely, uniformly punctate; the base sinuate and bi-incised on either side.

Elytra oval, twice the length of the prothorax, and of about the same width at the base; rather deeply

punctate-striate, the punctures not very closely placed, the interstices moderately and equally convex

throughout, very sparsely, minutely punctate. Beneath closely, finely, uniformly punctate. Claws

rectangularly dilated from the middle to the base. Body apterous.

Length 43-54, breadth 13-2 millim. (¢ 9.)

Hab. GuateMaLa, San Gerénimo (Champion).

Four specimens. ‘This insect resembles /. cleryi (Guér.), from Peru, in size and

shape, which also is apterous *, but differs from it in the very fine, uniform punctuation

of the thorax. The punctures on the head are coarser than those on the thorax. The

elytra are not connate. 7. apterus only differs from the genus Coptostethus in having

the thoracic carina lateral, instead of inferior. Apterous North-American species of

Horistonotus are noticed by Dr. Horn.

* H. parmenoides, Cand., is another apterous species.

HORISTONOTUS.—ESTHESOPUS. 439

20. Horistonotus zunilensis.

Moderately elongate, slender, shining, sparsely pubescent ; reddish-brown, the elytra indeterminately testaceous

towards the base, the antenne and legs testaceous. Head somewhat finely punctured, with a few minute

punctures intermixed ; antenne slender, half the length of the body. Prothorax considerably broader

than long, feebly convex, wider at the base than at the apex, the sides moderately rounded and

converging from the middle forwards and slightly sinuate behind; the hind angles moderately produced ;

the surface very sparsely, minutely punctate, with some slightly coarser punctures intermixed ; the base

sinuate and bi-incised on either side. Elytra about three times the length of the prothorax, and wider

than it at the base, a little dilated at the sides at about one-fourth from the base and narrowing thence

to the apex, the sides slightly rounded, the humeri rounded externally ; rather finely punctate-striate, the

interstices feebly convex, flatter towards the suture, and sparsely punctured. Beneath minutely punc-

tured, with distinct intermixed coarser punctures. Claws simple.

Length 5, breadth 14 millim. (<¢.)

Hab. Guatemata, Cerro Zunil (Champion).

One male example. This insect approaches H. dicinctus, but it is narrower, thus

appearing more elongate; the thorax is almost parallel at the sides behind, the

punctuation very sparse, fine, and unequal; and the claws are simple. It is the

only Central-American species of the genus known as yet with simple claws. The

puncturing of the thorax is unusually sparse.

ESTHESOPUS.

Esthesopus, Eschscholtz, in Thon’s Archiv, i. 1, p. 82 (1829); Candéze, Monogr. Elat. iil. p. 274.

The thirty-three described species of this genus are all American, ranging from the

Southern United States to La Plata. ‘Thirteen are now recorded from within our

limits, six of which are described as new. Ssthesopus agrees with Horistonotus in

having the carina separating the pronotum from the propleure strictly lateral (instead

of being placed beneath, as in Cardiophorus and Aptopus); but differs from it in the

more or less lamellate fourth tarsal joint, this character becoming very feeble, however,

in FL. scapularis, E. coarctatus, and their South-American allies. In all the Central-

American species the tarsal claws are rectangularly dilated from the middle to the base.

The head, thorax, and under surface have usually a double system of punctuation, but

in some few species, L. bifasciatus, &c., it is single. Good differential characters are

to be found in the form of the scutellum and in the relative length of the marginal

carina of the thorax.

a. Prothorax without notches or sulci at the base, the marginal carina ex-

tending almost to the anterior angles; scutellum raised anteriorly and

more or less convex; body more or less flattened above ; antennz short ;

fourth tarsal joint lamellate.

a'. Prothorax with a double system of punctuation, the small punctures

distinct.

a’, The larger punctures becoming much coarser towards the sides and

base, those in the transverse basal depressions very coarse and con-

440) SERRICORNIA.

spicuous ; upper surface varying in colour from castaneous to pitchy-

black ; legs and antenne testaceous ; prothorax and elytra flattened

on the disc . woe ee

6". The larger punctures almost equal in size; no coarse punctures in

the transverse basal depressions.

a", Upper surface concolorous—castaneous, brown, or black; the

elytra without definite markings.

a‘, Legs and antenne testaceous; prothorax and elytra distinctly

flattened on the disc.

a’. Elytra of the same width as the prothorax, subparallel in

front . ;

bo’. Elytra a little wider than the prothorax, somewhat rounded at

the sides 2. . 1 we ew ee ee ee

b*. Femora and tibize piceous, the tarsi and antenne testaceous ;

prothorax and elytra distinctly flattened on the disc

c’, Antenne, the basal joints excepted, infuscate; elytra slightly

flattened on the dise . . . 2... . Lo.

b"", Upper surface not concolorous ; legs and antennz testaceous.

d‘, Black, the elytra with a large rufo-testaceous apical patch, the

prothorax and elytra flattened on the disc woe ee

e*. Black, the elytra with a basal and an apical patch testaceous ;

prothorax and elytra flattened on the disc

f*. Elytra black (or with the sides and base piceous), the head and

prothorax rufous ; elytra flattened on the disc Loe

é'. Prothorax almost uniformly punctate, the intermixed smaller punctures

indistinct or obsolete.

c". Prothorax and elytra flattened on the disc, the elytra subparallel

towards the base; upper surface black. ... . . soe

da". Prothorax flattened on the disc, the elytra somewhat convex and a

little rounded at the sides; upper surface reddish brown. . .

6. Prothorax bi-incised on either side at the base near the inner limit of the

hind angles, the marginal carina abbreviated in front; elytra more or

less rounded at the sides; scutellum concave; antenne elongate ; fourth

tarsal joint feebly lamellate.

c'. Prothorax and elytra flattened on the disc, equal in width at the base ;

prothoracic punctuation uniform; upper surface Tulo-testaceousy the

prothorax and elytra nigro-fasciate os .

d'. Prothorax and elytra moderately convex, the elytra wider than the p pro-

_ Mhorax at the base ; upper surface brownish.

. Prothoracic punctuation mixed ; elytra unicolorous .

mn Prothoracic punctuation uniform ; elytra usually with a pale humeral

spotorpatch . . . ...

» ° ° » ° e e °

humilis.

hepaticus.

troglodytes.

ebeninus.

fuscicornis.

apicatus.

quadripustulatus.

atripennis.

nitidulus.

breviusculus.

bifasciatus.

coarctatus.

scapularis.

ESTHESOPUS. 44]

1. Esthesopus humilis. (Tab. XIX. figg. 20; 20a, prothorax.)

Esthesopus humilis, Cand. Monogr. Elat. iii. p. 284".

Esthesopus murinus, Cand. loc. cit. p. 284°.

Hab. Norra America }.—Mexico? (Sallé, coll. Janson), Minas Viejas (Dr. Palmer),

Playa Vicente (Hége), Teapa in Tabasco (coll. Janson), Yucatan (Pilate, in coll.

Janson), Temax in North Yucatan (Gaumer); Guatemata, Panzos (Champion) ;

Honpuras (Sallé) ; Nicaragua, Chontales (Janson); Panama, Bugaba (Champion).—

CoLompBia; Brazit; CuBa.

This species may be readily distinguished from the allied forms with a distinct

double system of punctuation on the thorax by the larger punctures being much

coarser towards the sides and base than they are upon the middle of the disc, those in

the basal depressions being coarse, deep, and conspicuous. The type of F#. humilis is

an abraded example, reddish-castaneous in colour, with the thorax abnormally formed ;

and that of #. murinus a dark specimen with the pubescence intact ; both are contained

in the Janson collection. The sculpture of the thorax is precisely similar in the two

insects, though the coarse conspicuous punctures near the base are not mentioned by

Dr. Candéze in his description of #. murinus. In colour and size it is as variable

as many of the allied forms. Specimens of H. humilis were mixed with the series of

E. hepaticus and E. troglodytes in the Janson collection.

One of the two examples from Yucatan is coloured like the type of E. humilis ;

others, from Teapa and elsewhere, are intermediate in this respect. between /. humilis

and L. murinus. A specimen from Yucatan is figured. .

2. Esthesopus hepaticus. (Tab. XIX. fig. 21.)

Cardiophorus hepaticus, Krichs. in Germar’s Zeitschr. fiir Ent. ii. p. 336‘.

Esthesopus hepaticus, Cand. Monogr. Elat. ii. p. 283’.

Hab. Mexico, Tapachula in Chiapas (Hége) ; Guatemata, Zapote and San Gerénimo

(Champion); Panama, Tolé (Champion).—Sovuta America ? to Brazil 1.

Central-American specimens are smaller and narrower than those from Colombia and

Brazil in the Janson collection, but they vary in this respect, as well as in colour.

The thorax is parallel behind and arcuately narrowed in front; the punctuation is

close, and consists of minute and moderately coarse punctures intermixed, the latter

widely scattered but becoming more numerous towards the sides in front. The elytra

are of the same width as the thorax, and subparallel in their basal half. The body is

flattened above. The North-American insects formerly referred to E. hepaticus

apparently belong to HL. parcus and #. dispersus, Horn.

A specimen from San Gerdnimo is figured.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, January 1896. 3 L

449 SERRICORNIA.

3. Esthesopus troglodytes.

Monocrepidius troglodytes, Germ. Zeitschr. fiir Ent. i. p. 232°.

Cardiophorus troglodytes, Krichs. Zeitschr. fiir Ent. ii. p. 336°.

Esthesopus troglodytes, Cand. Monogr. Elat. iii. p. 282, t. 4. figg. 16, 16. a, b*.

Hab. * Mexico (coll. Janson, ex Laferté and Candéze).—CotomB14 12°; VENEZUELA °.

One of the two examples doing duty for E. murinus, Cand., in the Janson collection

is certainly referable to E. troglodytes, and there is an old specimen in the same

collection, from that of Laferté, labelled ‘“ Mexico (Deyrolle),” apparently belonging

to it; but the locality “ Mexico” requires confirmation. The thorax is sparsely and

moderately finely punctate throughout, with minute intermixed punctures, and is

without trace of coarse punctures near the base. ‘The elytra are a little wider

than the thorax, somewhat rounded at the sides, with the striz shallow and the

interstices almost flat towards the suture.

4, Esthesopus ebeninus.

Moderately elongate, robust, flattened above, shining, sparsely clothed with fine fusco-cinereous pubescence ;

above and beneath black, the antenne, femora, and tibie piceous, the tarsi testaceous. Head thickly,

coarsely punctate, with minute punctures intermixed ; antenne slender, short, scarcely reaching the hind

angles of the prothorax. Prothorax moderately convex, broader than long, much wider at the base than

at, the apex, the sides almost straight and very slightly converging behind, and gradually and arcuately

converging in front; the hind angles moderately produced ; the surface closely punctured, the punctua-

tion consisting of intermixed rather coarse and very fine punctures, the larger ones somewhat closely

placed, becoming coarser and more crowded towards the sides and apex; the base sinuous on either side,

without trace of sulci; the marginal carina complete. Scutellum large and feebly convex. Elytra

two and one-half times the length of the prothorax, and not wider than it, subparallel froin a little below

the shoulders to beyond the middle, and arcuately narrowing thence to the apex, slightly narrowed in

front, the humeri subangular ; punctate-striate, the interstices feebly convex, flat on the disc, and

thickly, very distinctly punctate. Beneath closely punctate, the punctuation consisting of fine and

moderately coarse punctures intermixed, the larger ones on the propleure coarse. Fourth tarsal joint

strongly lamellate. Claws rectangularly dilated from the middle to the base.

Length 63, breadth 23 millim.

Hab. Mexico, Chilpancingo in Guerrero (Hoge).

One specimen. ‘This species may be known from most of its allies by the infuscate

femora and tibie, a character also to be found in E. carbonarius, Cand., from Cayenne.

It is perhaps nearest to #. hepaticus, from which it differs in having the thorax less

parallel, with the larger punctures coarser and closer, the elytra slightly narrowed at

the base and more obtuse at the apex, the legs not entirely testaceous, &c.

5. Esthesopus fuscicornis.

Moderately elongate, rather robust, shining, somewhat sparsely clothed with fine cinereous or fusco-cinereous

pubescence ; black, the anterior angles of the prothorax.testaceous, the head more or less rufescent in

front, the elytra sometimes piceous or brownish, with the humeri indeterminately paler; the antenne

piceous or brown, with the basal one or two joints testaceous, the legs testaceous. Head thickly, rather

coarsely punctate, with a few very fine punctures intermixed ; antenne slender, short, about reaching

ESTHESOPUS. 443

the hind angles of the prothorax. Prothorax broader than long, much wider at the base than at the

apex ; the sides moderately rounded, gradually converging in front, and straight and slightly converging

behind ; the hind angles rather short ; the entire surface somewhat sparsely, finely punctate, with minute

scattered punctures intermixed; the base feebly sinuate on either side, without trace of sulci; the

marginal carina entire. Scutellum somewhat convex in front. Elytra about two and two-thirds longer

than the prothorax, and of the same width at the base, slightly flattened on the disc, feebly rounded

at the sides, and arcuately narrowing from the middle to the apex, the humeri rounded; deeply

punctate-striate, the interstices convex, flatter towards the suture, and somewhat thickly punctured.

Beneath thickly, rather coarsely punctate, with a few scattered minute punctures intermixed. Fourth

tarsal joint strongly lamellate. Claws rectangularly dilated from the middle to the base.

Length 5-6, breadth 14-2 millim. (¢ ¢.) :

Hab. Mexico, Chilpancingo in Guerrero (Hoge, H. H. Smith), Cuernavaca in

Morelos (Sallé, H. H. Smith). |

Found in plenty at Chilpancingo. This insect closely resembles /. nitidulus, but

differs from it in the distinctly mixed punctuation of the thorax, the larger punctures

being much finer and the smaller ones more numerous; the body is less flattened above

and less parallel; and the antenne are infuscate, except at the base. Some of the

specimens are more parallel than others, irrespective of sex. Single examples from

Capulalpam (Sall/é) and Yautepec (Hége) perhaps belong here, but they have the

antenne testaceous.

6. Esthesopus apicatus. (Tab. XIX. fig. 22.)

Esthesopus apicatus, Cand. Elat. Nouv. iii. p. 85 (1881) *.

Hab. Mexico |}.

The type of E. apicatus has been kindly communicated by Dr. Candéze. It differs

from the specimens here referred to Z. nitidulus in having the larger punctures on the

thorax a little more scattered and the smaller ones more distinct, and the elytra with

a large rufo-testaceous apical patch.

7. Esthesopus quadripustulatus. (Tab. XIX. fig. 23.)

Esthesopus quadripustulatus, Cand. Monogr. Elat. iii. p. 285°.

Hab. Nicaracua, Chontales (Janson).—CoLomBIa ; VENEZUELA !.

One specimen, agreeing with the type in the Janson collection.

8. Esthesopus atripennis, (Lab. XIX. fig. 24.)

Esthesopus atripennis, Cand. Monogr. Elat. iii. p. 280, t. 4. fig. 17°.

Esthesopus bicolor, Horn, Trans. Am. Ent. Soc. xi. p. 44’.

Hab. Norta America, Florida?.— Mexico! (coll. Janson, Sallé), Ventanas in

Durango, Cuernavaca in Morelos, Iguala in Guerrero (Hoge), Chilpancingo in Guerrero

(Hoge, H. H. Smith), Amula in Guerrero (H. H. Smith).

3L2

444 SERRICORNTA.

Var. The elytra rufous, with the sides, base, and apex broadly and indeterminately piceous.

Hab. Mexico, Chilpancingo (Hoge).

Of the eleven specimens examined, ten belong to the typical form and one to the

variety. A specimen from Amula is figured.

9. Esthesopus nitidulus.

Esthesopus nitidulus, Cand. Monogr. Elat. iii. p. 279°.

Hab. Mexico}, Jalapa, Juquila (Hége), Temax in North Yucatan (Gaumer) ;

British Honpuras, R. Sarstoon (Blancaneaux); Panama, Bugaba (Champion).

A single specimen from each locality. In this species the thorax is very little

narrowed in front, and the elytra are subparallel in their basal half. The thorax is

sparsely and somewhat coarsely punctured throughout, with a few excessively minute

punctures intermixed (the latter being only visible under a high magnifying-power),

and without trace of basal sulci. The pubescence is very sparse and fusco-cinereous in

colour. ‘The extreme apex of the elytra is sometimes reddish, and the abdomen in

some specimens is partly or entirely rufous. ‘The single example from British Honduras

is larger and much more elongate than the others. The type of E. nitidulus has not

been seen by me. Our specimens vary from 44-8 millim. in length.

10. Esthesopus breviusculus. (Tab. XIX. fig. 25.)

tather short and broad, robust, shining, sparsely pubescent; reddish-brown, the legs and antenne testaceous.

Head thickly, rather coarsely punctate ; antenne slender, short, not extending beyond the hind angles of

the prothorax. Prothorax feebly convex, flattened on the disc towards the base, broader than long, the

sides parallel behind and gradually arcuately converging in front; the hind angles not or feebly divergent,

obtuse, excavate above for the reception of the humeri; the surface somewhat sparsely and moderately

finely punctate throughout, without smaller punctures intermixed ; the base sinuate on either side and

without sulci; the marginal carina entire. Scutellum convex in front. Elytra moderately convex, two

and one-half times the length of the prothorax, and slightly wider than it at the base, gradually widening

to about the middle and arcuately narrowing thence to the apex, the humeri subangular in front ; deeply

punctate-striate, the interstices convex, flatter towards the suture, and somewhat thickly punctured.

Beneath thickly, rather coarsely punctate, without intermixed finer punctures. Fourth tarsal joint

strongly lamellate. Claws rectangularly dilated from the middle to the base.

Length 52-6}, breadth 23-24 millim.

Hab. Mexico, Acapulco (fHége).

Two specimens, probably sexes, one being much broader than the other. ‘This

species has the thorax flattened on the disc behind and the elytra rather convex. The

punctuation above and beneath is uniform, without smaller punctures intermixed.

E. breviusculus is perhaps nearest allied to E. nitidulus, from which it differs in its

more convex and less parallel elytra, the elytra themselves being slightly wider than

the thorax. The punctuation of the thorax is similar.

ESTHESOPUS. 445

11. Esthesopus bifasciatus. (Tab. XIX. fig. 26.)

Short, moderately convex, somewhat flattened above, shining, sparsely clothed with fine yellowish-cinereous

pubescence; rufous or rufo-testaceous, the prothorax piceous, with the anterior margin and the base,

rather broadly, of the ground-colour; the elytra with two transverse black fascia—one broad, median,

obliquely widening inwards in front and extending along the suture to near the scutellum, and the

other, narrower, immediately before the apex, the two connected along the suture; beneath piceous,

reddish at the sides; the antenne and legs testaceous. Head sparsely, somewhat coarsely punctate ;

antenn slender, nearly half the length of the body. Prothorax much broader than long, considerably

wider at the base than at the apex, moderately rounded at the sides; the hind angles short and rather

obtuse ; the surface sparsely, very finely punctate; the base bi-incised on either side; the marginal

carina abbreviated in front. Elytra about two and one-half times the length of the prothorax, and of

the same width at the base, narrowing from the middle, a little rounded at the sides; rather deeply

punctate-striate, the punctures not very closely placed, the interstices feebly convex throughout, and

sparsely, minutely punctate. Beneath finely and sparsely, the abdomen closely, uniformly punctate.

Fourth tarsal joint feebly lamellate. Claws rectangularly dilated from the middle to the base.

Length 4, breadth 12 millim.

Hab. Panama, Bugaba (Champion).

Two specimens.

12. Esthesopus coarctatus. (Tab. XIX. fig. 27, 9.)

Esthesopus coarctatus, Cand. in litt.

Moderately elongate, shining, finely and rather sparsely pubescent ; reddish-brown or brownish-testaceous,

the front of the head and the anterior margin of the prothorax paler; the antenne testaceous, the legs

flavo-testaceous. Head thickly, moderately finely punctate; antenne slender, in the female extending

to considerably beyond the humeri (the outer joints broken off in the male). Prothorax a good deal

broader than long, wider at the base than at the apex, the sides rounded anteriorly and feebly sinuate

behind ; the hind angles moderately produced ; the surface rather sparsely, finely punctate, towards the

sides and apex with slightly coarser punctures intermixed ; the base sinuate and bi-incised on either side ;

the marginal carina abbreviated in front, Elytra three times the length of the prothorax, and wider than

it at the base, moderately rounded at the sides, and narrowing from about the middle to the apex, the

humeri rounded ; punctate-striate, the interstices feebly convex, flatter on the disc, and distinctly punc-

tured. Beneath closely and finely, the pro- and metasternum sparsely, punctured, the propleare and

metasternum with slightly coarser punctures intermixed. Fourth tarsal joint feebly dilated and excavate.

Claws rectangularly dilated from the middle to the base.

Length 6-63, breadth 2-2 millim. (¢ 2.)

Hab. Mexico, Orizaba (coll. Janson).

Three specimens in the Janson collection, labelled as above in Dr. Candéze’s hand-

writing. Larger and broader than £. scapularis, the thorax less narrowed. behind,

with the punctuation more distinct and unequal, the elytral strie shallower towards

the suture, the interstices more distinctly punctured.

13. Esthesopus scapularis. (Tab. XIX. fig. 28, ¢.)

Moderately elongate, shining, finely and rather sparsely pubescent ; brown or brownish-testaceous, the front

of the head, the anterior margin and hind angles of the prothorax, and a humeral patch on the elytra—

in one specimen extending to near the middle and in others small,—testaceous; the antenne fusco-

testaceous with the two basal joints testaceous, or entirely testaceous ; the legs flavo-testaceous, Head

446 SERRICORNIA.

closely, finely punctate; antenne slender, elongate, about two-thirds the length of the body in the male,

a little shorter in the female. Prothorax broader than long, moderately convex, not or very little wider

at the base than at the apex, the sides rounded from the middle forwards and sinuate behind; the hind

angles moderately produced ; the surface very finely and somewhat thickly punctate ; the base sinuate

and feebly bi-incised on either side; the marginal carina abbreviated in front. Elytra about three times

the length of the prothorax, and considerably wider than it, moderately rounded at the sides, and

narrowing from a little before the middle to the apex, the humeri rounded ; deeply punctate-striate, the

interstices feebly convex and minutely punctate. Beneath closely, finely punctate. Fourth tarsal joint

feebly widened, and excavate above for the reception of the fifth joint. Claws rectangularly dilated from

the middle to the base.

Var. The humeral patch on the elytra obliterated.

Length 44-53, breadth 1j-1? millim. (¢ @.)

Hab. Gvavemats, El Tumbador, Cerro Zunil, and Panajachel (Champion).

Nine examples, all from the Pacific slope, from elevations between 2500 and 5000

feet. This insect closely resembles some of the varieties of Horistonotus bicinctus, but

may be known from them by the excavate and feebly widened fourth tarsal joint and

the relatively narrower thorax. £. scapularis is allied to the South-American

E. delinitor and E. phisalus, Cand., and £. placidus, Er., but differs from all these in

its more oval elytra and narrower thorax. The dilatation of the fourth tarsal joint is

so slight that the insect would be almost equally well placed in Horistonotus. A male

from Cerro Zunil is figured.

Group MELANOTINI.

DODECACTEN US.

Dodecactenus, Candéze, Ann. Soc. Ent. Belg. xxxiii. p. 102 (1889) (Elat. Nouv. iv. p. 36); Cat.

Méthod. Elat. p. 103 (1891).

This genus is referred by Dr. Candéze to the group Elaterini. Its affinities, however,

are obviously with Spheniscosomus, from which it chiefly differs in having the meso-

sternum connate with the metasternum; this last-mentioned character is mainly

peculiar to the group Chalcolepidiini. Dodecactenus contains two species, both

peculiar to Central America; they are found in forest-clearings and at a considerable

elevation.

1. Dodecactenus staudingeri. (Tab. XX. fig. 1, ¢.)

Dodecactenus staudingeri, Cand. Ann. Soc. Eut. Belg. xxxiii. p. 103 (Elat. Nouv. iv. p. 37) '.

Hab. Costa Rica, Volcan de Irazu, Rio Sucio (Rogers); Panama, Volcan de Chiriqui

4000 feet (Champion), Chiriqui! (Zrétsch).

T have seen nine specimens of this species, four of which are from Chiriqui. The

antenne are short, extending only as far as the hind angles of the thorax in the female,

slightly longer in the male ; the third joint is about twice as long as the second, and

nearly as long as the fourth. The apex of the fifth ventral segment is broadly rounded

DODECACTENUS. 447

and closely punctured in the male, subtruncate and sparsely punctured in the female.

The frontal carina is slightly deflexed in the middle and feebly rounded. The

pubescence is coarse, whitish, cinereous, or fulvo-cinereous in colour, and on the

elytra seriately arranged. The under surface, the prosternum included, is very sparsely,

finely punctate. The basal sulci of the thorax are short and deep. The elytra are

narrowed from the base in the male, subparallel to the middle in the female; the

punctures are very fine and scattered, irregularly arranged, except along the fine

sutural stria.

2. Dodecactenus guatemalensis. (Tab. XX. fig. 2, 3.)

3. Very elongate, flattened above, shining, black, very sparsely clothed with rather coarse, decumbent, long,

cinereous hairs, these forming a definite line along either side of the suture of the elytra; the antenns

and legs piceous or pitchy-brown, cinereo-pubescent, the antennx also ciliate along their inner edge.

Head sparsely, coarsely punctate, declivous in front, the carina extending obliquely downwards so as to

form a triangular frontal plate; antenne nearly two-fifths the length of the body, the third joint a little

longer than the second, the two together scarcely so long as the fourth. Prothorax flattened behind, as

long as broad, conical, rapidly narrowing from the base forwards, deeply canaliculate before the base; the

hind angles long, divergent, incurved at the tip, bicarinate, the inner carina the longest; the basal sulci

broad and deep, rather long, and limited outwards by a distinct longitudinal plica; the surface with

widely scattered rather fine punctures, these becoming coarser and more crowded towards the apex, a

broad space down the middle from a little before the apex te the base impunctate. LElytra more than

three times the length of the prothorax, narrowing from the base, flattened on the disc; seriate-punctate,

the striz obliterated, except at the base, where they are deeply impressed, and along the suture, the

punctures widely separated, coarse at the sides, becoming much finer towards the suture and apex; the

interstices flat, each with a single very irregular row of minute punctures. Beneath rather sparsely

punctate, the prosternum very coarsely and closely punctured at the sides, smooth along the middle ;

the fifth ventral segment closely and coarsely punctured towards the apex, and longitudinally swollen

in the middle behind.

@. Antenne not extending beyond the hind angles of the prothorax. Prothorax somewhat rounded at the

sides, less flattened on the disc behind, with the deep median groove extending more forwards. LElytra

subparallel to the middle. Fifth ventral segment more sparsely punctate towards the apex.

Length 15-16, breadth 4-4} millim.

Hab. Guatemata (Sallé), Purula and Coban in Vera Paz (Champion), between Tactic

and La Tinta in Vera Paz (Conradt).

Males of this insect were found in plenty at Purula. Of the females, single specimens

only have been received from Coban and Tactic, and there is a third in the Sallé

collection. The sexes are very dissimilar. ‘The present species differs in many respects

from D. staudingeri, more especially in the subtriangular frontal plate, the short third

joint of the antenne, the sparser pubescence, the longer and broader basal sulci of the

thorax, the hind angles of which are bicarinate and the disc deeply canaliculate behind,

the less sparsely punctured under surface, the coarsely and closely punctured sides of

the prosternum, &c.

448 SERRICORNIA.

SPHENISCOSOMUS.

Spheniscosomus, Schwarz, Wien. ent. Zeit. xi. p. 182 (1892) ; Buysson, Faune Gallo-Rhénane, Elat.

p. 129 (1894).

Melanotopsis, Lewis, Ann. & Mag. Nat. Hist. (6) xiii. pp. 191, 192, figg. 1, 2 (1894).

Melanotus, Candéze, Monogr. Elat. iii. p. 298 (part.).

Spheniscosomus includes those members of the old genus Melanotus which have the

prosternal process horizontally produced and the sides of the mesosternal cavity raised

and V-shaped. Seven species have been referred to it, including two from Southern

Europe, two from Japan, one from China, and two from Java*; and six Tropical-

American forms must also be included. The genus has a more southern distribution

in the New World than Melanotus, extending as far south as Panama. ‘The species,

like those of Melanotus, are very closely allied and not easy to separate. Some of them

have an additional carina or plica within the hind angles of the thorax; this carina,

however, is not always distinct in the same species (it being often obsolete in the

females), and it cannot be relied upon as a specific character. The males, as in

Melanotus, usually have the antenne closely ciliate along their inner edge, and some-

times the fifth ventral segment is peculiarly sculptured in this sex, as, for example, in

S. tropicalis. WS. levis is easily recognizable by the very deep, long basal sulci of the

thorax. The six Central-American species may be tabulated thus :—

a. Antenne with the third joint short, not much longer than the second.

a’. The hind angles of the prothorax with a long, sharp, oblique carina; the basal

sulci long and shallow; the prothoracic punctuation coarse and close . . . rubicundus.

b'. The hind angles of the prothorax with a sharp, straight carina; the basal sulci

short, the prothoracic punctuation excessively coarse and moderately close . lanuginosus.

6. Antenne with the third joint much longer than the second.

c'. Hind angles of the prothorax with a long, sharp carina.

al", ae basal sulci long; the prothoracic punctuation very sparse and rather

; body elongate . . . 2... 2... ee woe ew ee + tropicalis.

b". The basal sulci short; the prothoracie punctuation closer and very coarse ;

body rather short . . . woe ew ee ew ee ribrosus.

d'. Hind angles of the prothorax obsoletely carinate ; body elongate.

c, The basal sulci moderately long, shallow in front ; the prothoracic punctua-

tion coarse, Sparse . . . . . . . woe ew ee ee ew. rodriqgnerzi.

d", The basal sulci long and very deep ; the prothoracic punctuation fine, very

sparse 6 we ee ee ew. Levis.

1. Spheniscosomus rubicundus. (Tab. XX. figg. 4, ¢; 4a, prothorax.)

Melanotus rubicundus, Cand. Ann. Soc. Ent. Belg. 1889, p.112 (Elat. Nouv. iv. p. 46)’.

Hab. Guatemata !, Capetillo (Champion).

One female and two males of this species were captured by myself in Guatemala.

* Melanotus ebeninus, Cand., from Luzon, and M. cuneolus, Cand., from Java, also belong to Spheniscosomus,

SPHENISCOSOMUS. 449

The insect is of a castaneous or obscure rufous colour. The antenne are ciliate on

their inner edge and half the length of the body in the male, much shorter in the

female; the second and third joints are small. The thorax is very coarsely, thickly

punctate, with the hind angles sharply and obliquely unicarinate, and the basal sulci

long and rather shallow. ‘The elytra are narrowed from the base in the male, more

parallel in the female; seriate-punctate, the punctures placed in almost obsolete strie ;

the interstices are almost flat, each with an irregular double row cf widely scattered

fine punctures.

2. Spheniscosomus lanuginosus.

3. Very elongate, flattened above, shining, rufo-castaneous, somewhat thickly clothed with long, decumbent,

rather coarse, cinereous hairs. Head very coarsely, closely umbilicate-punctate ; antenne extending to

a little beyond the hind angles of the prothorax, joint 3 short, slightly longer than 2. Prothorax broader

than long, rapidly narrowing from the base, the sides very feebly sinuate behind; the hind angles diver-

gent, slightly incurved at the tip, sharply unicarinate; the basal sulci short; the surface exceedingly

coarsely, deeply, closely punctate, the punctuation becoming more crowded near the anterior angles and

very coarse on the basal declivity, the disc with a smooth depressed space along the middle behind.

Elytra three and two-thirds longer than the prothorax, gradually narrowing from the base, flattened on

the disc ; finely seriate-punctate, the punctures somewhat widely separated, the striz obsolete, except on

the basal declivity and along the suture; the interstices almost flat, each with two rows of fine punctures.

Beneath rather sparsely punctate, the punctures fine on the abdomen, coarser on the metasternum, and

very coarse and umbilicate on the prosternum and propleure.

Length 15, breadth nearly 4 millim.

Hab. Mexivo, Omilteme in Guerrero 8000 feet (H. H. Smith).

One specimen. This species resembles Melanotus prolixus, but differs from it in

having the sides of the mesosternal cavity raised; the punctuation of the thorax is

extremely coarse, even on the basal declivity (instead of finer on this part, as in

M. prolixus). The antenne are rather short, and not ciliate on their inner edge.

3. Spheniscosomus tropicalis. (Tab. XX. figg. 7, ¢; 7a, fifth ventral

segment. )

Elongate, flattened above, shining ; castaneous or rufo-castaneous, the elytra with the apex narrowly, and

sometimes the suture and lateral margins towards the tip, infuscate or black, the head, or the head and

prothorax (except in the middle behind), also sometimes infuscate or black; beneath usually darker

than above, the propleure, sides, and last two ventral segments of the abdomen sometimes black;

above and beneath very sparsely clothed with rather coarse, decumbent, long, cinereous or yellowish-

cinereous hairs. Head very sparsely, coarsely punctate, the frontal carina rounded; antenne about two-

fifths of the length of the body in the male, much shorter in the female, ciliate on the inner edge in the

male, the third joint intermediate in length between the second and fourth. Prothorax broader than

long, narrowing from the base and with the sides somewhat abruptly converging in front in the male, more

parallel behind in the female ; the hind angles moderately long, divergent, slightly incurved at the tip,

bicarinate, the outer carina sharply defined, the inner one feeble and sometimes obsolete, especially in the

females; the basal sulci moderately long, deep; the surface with very widely scattered fine or moderately

coarse punctures, which become coarser and more crowded towards the anterior angles, deeply canaliculate

behind, and with a space along the middle of the basal half impunctate. Elytra more than three times

the length of the prothorax, narrowing from the hase in both sexes; seriate-punctate, the punctures

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, January 1896. 3M

450 SERRICORNIA.

placed in almost obsolete striw, the strie deeply impressed on the basal declivity, the punctures fine,

becoming still finer at the apex and coarser at the sides; the interstices almost flat, each with two very

irregular rows of fine punctures. Beneath sparsely punctured, the propleure and the sides of the pro-

sternum more closely and very coarsely punctate ; fifth ventral segment in the male with a smooth oblong

depression on either side of the middle, limited inwards by a dense fringe of hairs.

Var. The head, the disc of the prothorax in front, and the suture rather broadly from the base to the apex,

pitchy-black.

Length 103-184, breadth 3-33 millim. (¢ 2.)

Hab. Guatemata, El Tumbador, Las Mercedes, Cerro Zunil, Capetillo (Champion) ;

Panama, Bugaba, Volcan de Chiriqui (Champion).

Found in plenty at Cerro Zunil and Bugaba; the variety is represented by a single

specimen from Cerro Zunil. The colour is rather variable, but the insect is always in

great part castaneous or rufo-castaneous. In some of the females from Bugaba the

third joint of the antenne is as long as the fourth, and the inner costa or plica in the

hind angles of the thorax is obliterated. The males differ from the females in the

sculpture and clothing of the fifth ventral segment, as well as in the length of the

aptenne, &c. The localities for this species are all on the Pacific slope.

4. Spheniscosomus cribrosus. (Tab. XX. fig. 6, ¢.)

Moderately elongate, rather broad, shining, castaneous or piceous, sparsely clothed with decumbent yellowish-

cinereous hairs. Head very coarsely, closely umbilicate-punctate, the frontal carina rounded and

prominent ; antenne short, about reaching the hind angles of the prothorax in the male, shorter in the

female, ciliate on their inner edge in the male, the third joint almost as long as the fourth. Prothorax

broader than long, subparallel behind, the sides arcuately converging from the middle forwards; the hind

angles considerably produced, sharply, longitudinally unicarinate, the carina long; the basal sulci short ;

the surtace coarsely, somewhat sparsely punctate—the punctuation becoming closer, coarser, and umbili-

cate towards the sides and apex, dense near the anterior angles, and fine on the basal declivity,—not or

feebly canaliculate behind, and with a space down the centre from the middle to the base impunctate.

Elytra two and three-fourths longer than the prothorax, and in front distinctly narrower than it,

narrowing from the base ; coarsely seriate-punctate, the punctures becoming much finer towards the apex,

and placed in almost obsolete strive, these becoming deeply impressed on the basal declivity, the interstices

flat, each with two irregular rows of fine, widely separated, punctures, Beneath thickly and very coarsely

umbilicate-punctate, the punctuation much finer along the middle of the metasternum and on the

abdomen.

Length 103-123, breadth 31-32 millim. (¢ 9.)

Hab. Mexico, Jalapa (Hoge, Godman); Nricsracua, Chontales (Belt).

Four specimens, three of which are from Mexico. This species is less elongate and

has a relatively wider thorax than any of the other Central-American forms. In both

sexes the thorax is subparallel behind, and the elytra are narrowed from the base.

The hind angles of the thorax are sharply, longitudinally unicarinate. The punctua-

tion is very coarse in the Mexican specimens, finer in the Nicaraguan example,

SPHENISCOSOMUS. 451

5. Spheniscosomus rodriguezi.

Melanotus rodriguezi, Cand. Compt. Rend. Soc. Ent. Belg. 1878, p. clxvii (Elat. Nouv. ii. p. 40)".

Melanotus lucidus, Cand. in litt.

Hab. Guatemata ! (Sallé, coll. Janson) ; Nicaracua, Chontales (Belt).

Of this species I have seen eight specimens, two only of which are from Nicaragua

(both females), varying from 16 to 224 millim. in length. The coarse punctures on

the thorax are widely scattered on the disc, becoming more crowded towards the

sides and apex; the hind angles are obsoletely carinate. The third joint of the

antennee is about twice as long as the second, and narrower and shorter than the

fourth. The antenne are short, extending very little beyond the hind angles of

the thorax in the male, still shorter in the female. The thorax, as usual, is more

rounded at the sides in the female than in the male. The specimens of this insect

in the Janson collection are labelled in Dr. Candéze’s handwriting, Melanotus lucidus,

Cand.

6. Spheniscosomus levis. (Tab. XX. fig. 5, prothorax, 3.)

Elongate, flattened above, varying in colour from deep black to castaneous, shining, very sparsely clothed with

rather coarse, decumbent, cinereous or yellowish-cinereous hairs, the legs and antenne rufous or brown.

Head sparsely, coarsely punctate; antennee extending to a little beyond the hind angles of the prothorax,

and ciliate on their inner edge, in the male, shorter in the female, the third joint nearly or quite as long

as the fourth. Prothorax nearly as long as broad, a little rounded at the sides, gradually narrowing from

the base; the hind angles feebly or obsoletely carinate; the basal sulci very deep, long, and oblique ;

the surface with widely scattered very fine or moderately coarse punctures, these becoming coarser and

more crowded near the anterior angles, canaliculate behind. LElytra about three times the length of the

prothorax, narrowing from the base; finely or moderately coarsely seriate-punctate, the striz obsolete or

shallow, except on the basal declivity, where they are very deeply impressed, and along the suture, the

punctures somewhat distantly placed; the interstices flat or very feebly convex, each with two very

irregular rows of widely separated fine or minute punctures. Beneath with widely separated fine

punctures, these becoming coarser at the sides; the fifth ventral segment more closely punctured and

pubescent at the apex in the male than in the female.

Length 124-194, breadth 33-53 millim. (¢ 9.)

Hab. Mexico, Jalapa (Hoge); British Honpuras (coll. Janson) ; GuatemaLa, Coban

(Conradt); Nicaragua, Chontales (elt, #. M. Janson); Panama, Volcan de Chiriqui

(Champion).

Eight specimens, varying greatly in size and colour, and also in the intensity of the

punctuation, Some of the males are very elongate, deep black, and very finely punc-

tured, with the elytral striz obsolete, except on the basal declivity and along the

suture. The single examples from Mexico and British Honduras are more coarsely

punctured than the others. ‘Two of the females from Choniales are less elongate than

usual. This species may chiefly be known by the long and deep basal sulci of the

thorax and the very widely scattered fine punctuation of its surface, the punctures

being a little more crowded near the anterior angles only, and the finely seriate-

3M 2

452 SERRICORNIA.

punctate elytra. In one of the males from Chontales, deep black in colour, the basal

sulci of the thorax are limited externally by a prominent longitudinal plica, and the —

space between this and the almost obsolete carina extending obliquely forwards from

the tip of the hind angles is deeply triangularly excavate.

MELANOTUS.

Melanotus, Eschscholtz, in Thon’s Archiv, ii. 1, p. 82 (1829); Candéze, Monogr. Elat. in. p. 298

(part.).

Perimecus, Stephens, Illustr. Brit. Ent., Mand. iii. p. 263 (1880).

Cratonychus, Boisduval et Lacordaire, Faune Ent. env. Paris, i. p. 631 (1835) ; Leconte, Trans.

Am. Phil. Soc. new ser. x. p. 473.

Priopus, Castelnau, Hist. Nat. Ins. Col. i. p. 251 (1840).

Of the 165 described species of this widely-distributed genus, forty-six are American,

and of these latter all but three are nearctic. As already noted under Spheniscosomus,

a certain number of them have been separated. In America Melanotus does not

appear to extend south of the Mexican State of Vera Cruz. One species, I. castanipes

(Payk.), is holarctic, extending into Northern Mexico.

a. Antenne with the third joint short, not much longer than the second; the basal

sulci of the prothorax short.

a’. Prothorax longitudinally carinate down the middle behind ; the hind angles

with a very long carina, extending forwards to the middle of the prothorax. carinifer.

b'. Prothorax not carinate in the middle behind; the hind angles with a short carina.

a". Elytra more than three times the length of the prothorax, the interstices

simply punctured.

a. Prothoracic punctuation very coarse ; elytra narrowing from before the

middle. . 2 2 oe 1. eee eee ee ee ee ee prolizus.

6". Prothoracic punctuation moderately coarse ; elytra subparallel to beyond

the middle . . . oe ee . - + . castanipes.

é". Elytra not more than three times the length of the prothorax, the inter-

stices transversely rugulose and punctured; the prothoracic punctuation

rather fine. Se ee ee ee. rugulipennis.

6. Antenne with the third joint nearly twice as long as the second; the hind angles

of the prothorax with a short carina, the basal sulcishort . . . . . . . mevicanus.

1. Melanotus carinifer. (Tab. XX. fig. 3, prothorax, ¢.)

S$. Moderately elongate, flattened above, shining, sparsely pubescent, above pitchy-brown, beneath rufo-

castaneous, the legs and antenne ferruginous. Head coarsely, closely umbilicate-punctate; antenne

two-fifths the length of the body, the third joint a little longer than the second. Prothorax

slightly broader than long, gradually narrowing from the base, the sides feebly rounded, slightly sinuate

behind ; the hind angles long and divergent, with a sharp supra-marginal carina extending forwards to the

middle of the prothorax, and a short, sinuous carina or plica within ; the basal sulci very short and

inconspicuous ; the surface coarsely and rather closely punctured, the punctuation becoming closer, coarser,

and umbilicate towards the anterior angles, the disc sharply longitudinally carinate in the middle behind

MELANOTUS. 453

and with a space along the centre impunctate. Elytra rather more than three times the length of the

prothorax, subparallel to the middle; punctate-striate, the interstices almost flat, each with two irregular

series of fine punctures. Beneath thickly, coarsely punctate, the fifth ventral segment very coarsely

punctured towards the apex ; mesosternum depressed.

Length 9, breadth 22 millim.

Hab. Mexico, Durango city ( Hége).

One male example. ‘This species differs from all the allied American forms in the

longitudinally carinate disc of the thorax. The very coarsely punctured apex of the

fifth ventral segment is probably a sexual character. J. carinicollis, Schwarz, from

Turkestan, also has the thorax longitudinally carinate, but in that insect the carina is

stated to extend nearly to the anterior margin.

2. Melanotus prolixus.

Cratonychus prolixus, Erichs. in Germar’s Zeitschr. fiir Ent. ii. p. 94 (1841) *.

Melanotus prolixus, Cand. Monogr. Elat. iii. p. 339’.

Hab. Mexico}, Oaxaca, Juquila, Yolos (Sallé).

I have seen five specimens of this species, including both sexes. ‘The insect chiefly

differs from the allied Central-American forms in the very coarse, moderately close

punctuation of the thorax, the latter with the hind angles rather sharply carinate.

The antenne are ciliate on their inner edge and moderately elongate in the male,

shorter in the female; the second and third joints are very short and equal in length.

The hind angles of the thorax have a short carina, and on the inner side of it there is

a second carina or plica, which is well defined in some of the males and obsolete in

the females. The mesosternum is less depressed than in MM. castanipes and its allies.

3. Melanotus castanipes.

Elater castanipes, Payk. Faun. Suec. iii. p. 23 (1800) ’.

Melanotus castanipes, Kies. Naturg. Ins. Deutschl. iv. p. 251°; Cand. Monogr. Elat. ii. p. 311 °.

Cratonychus castanipes, Erichs. in Germar’s Zeitschr. fiir Ent. i. p. 95°.

Perimecus fulvipes, Kirby, Fauna Bor.-Am. iv. p. 148°.

Cratonychus inequalis, Lec. Trans. Am. Phil. Soc. new ser. x. p. 476 °*.

Hab. Norta America, Canada ?°, Lake Superior,®.—Mexico, Ciudad in Durango

(Hége).—Eurore! 234; Siperta?; Asta Minor ®.

We have received one male and four females of this widely distributed species from

Northern Mexico. They agree perfectly with others from Europe. The females are

of very large size (18-18 millim. in length); the male is unusually small, measuring

12 millim. only. The insect differs from nearly all its allies in having the elytra very

elongate (from three and one-half to three and two-thirds longer than the thorax,

measured along the median line), and subparallel to beyond the middle, in both sexes.

* For the rest of the synonymy, see Candéze (loc. cit.).

454 SERRICORNTIA.

4. Melanotus rugulipennis.

3. Elongate, shining, pitchy-black, the antenne and legs ferruginous; above and beneath rather sparsely

clothed with decumbent yellowish-cinereous hairs. Head closely, coarsely umbilicate-punctate, the frontal

carina prominent; antennew short, extending slightly beyond the hind angles of the prothorax, ciliate

on their inner edge, the third joint.a little longer than the second. Prothorax broader than long, sub-

parallel behind, gradually and arcuately narrowing from the basal third to the apex; the hind angles

moderately long, not divergent, unicarinate, the carina short ; the basal sulci short ; the surface somewhat

thickly, finely punctate, the punctuation becoming coarser and more crowded towards the sides and apex,

the interspaces with a few widely scattered very minute punctures, obsoletely canaliculate behind. Elytra

three times the length of the prothorax, gradually narrowing from about the basal third, flattened on the

disc; rather deeply punctate-striate, the interstices feebly convex and transversely rugulose, each with

two irregular rows of fine punctures. Beneath somewhat thickly punctured, the pro- and metasternum

smoother in the middle, the punctures oblong in shape on the propleure and on the lateral portions of

the body, the apex of the fifth ventral segment more densely punctate ; mesosternum depressed.

Length 10, breadth 2? millim.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

One male example. This insect resembles the European WV. rujfipes, but differs from

it in its much smaller size, shorter antenne, the third joint of which is very little longer

than the second, less coarsely punctured thorax, &c. It is allied to the North-

American VW. communis (Gyll.) and M. exuberans, Lec., but has a more finely punctured

thorax, &c.

5. Melanotus mexicanus.

Moderately elongate, shining, piceous or fusco-castaneous, the humeri or the base of the elytra indeterminately

paler, the antenne and legs ferruginous; above and beneath rather sparsely clothed with decumbent

yellowish-cinereous hairs. Head closely, coarsely umbilicate-punctate, the punctures shallow ; antennz

moderately elongate and rather slender in the male, shorter and stouter in the female, the third joint

nearly twice as long as the second. Prothorax a little broader than long, with the sides rounded and

converging from the middle forwards, somewhat oblique towards the apex in the male, and feebly sinuate

behind ; the hind angles moderately long, not or very slightly divergent, sharply, longitudinally unicari-

nate, the carina short; the basal sulci short ; the surface finely or moderately coarsely, somewhat thickly

punctate, the punctuation becoming closer, coarser, and umbilicate towards the sides and near the apex,

feebly canaliculate behind. Elytra three times the length of the prothorax, gradually narrowing from

about the basal third, flattened on the disc; finely or moderately coarsely punctate-striate, the interstices

flat or feebly convex, each with two irregular rows of fine scattered punctures. Beneath thickly, rather

coarsely punctate, the punctures oblong in shape on the propleurz and on the lateral portions of the body,

the fifth ventral segment coarsely punctured and with the punctures longitudinally confluent ; meso-

sternum depressed. °

Length 93-113, breadth 25-33 millim. (¢ 2.)

Hab. Mexico, Teapa in Tabasco and Yucatan (coll. Janson).

A male from Teapa and a female from Yucatan. This species is perhaps nearest

allied to M. cribulosus, Lec., from Nebraska, which has the fifth ventral segment

similarly sculptured, but differs from that insect in having two (instead of three)

irregular rows of punctures on each of the elytral interstices. The antenne are more

slender than usual in the male; they are not ciliate on their inner edge, but this may

be due to abrasion.

LIMONIUS. 459d

Group ATHOINI.

LIMONIUS.

Limonius, Eschscholtz, in Thon’s Archiv, ii. 1, p. 33 (1829); Candéze, Monogr. Elat. iii. p. 377.

Gambrinus, Leconte, Trans. Am. Phil. Soc. new ser. x. p. 435 (1853).

Pheletes, Kiesenwetter, Naturg. Ins. Deutschl. iv. p. 329 (1858).

A holarctic genus containing fifty-two described species, thirty-three of which are

American, one only of these being from our region, whence a second is now added.

1. Limonius quadraticollis.

Limonius quadraticollis, Cand. Monogr. Elat. iii. p. 412, t. 5. fig. 10°.

Hab. Mexico, Cordova and Tuxtla (Sa/lé+), Jalapa and Playa Vicente (Hége).

Not uncommon in the State of Vera Cruz, whence we have received a good series

of both sexes. These specimens vary from 73-11 millim. in length. JL. quadraticollis

has the basal joint of the tarsi a little more elongate than usual in the genus.

2. Limonius longulus. (Tab. XX. fig. 8, 3, var.)

Elongate, narrow (¢ ), or moderately broad ( @ ), subopaque; piceous, the prothorax with the anterior angles

or the sides slightly rufescent, the antennxw black; thickly clothed with long cinereous hairs, which on

the upper surface are partly decumbent and partly semierect. Head densely, rather coarsely punctate ;

the front depressed in the middle, rounded and prominent on either side, the carina obliterated in the

centre; antenne rather more than half the length of the body in the male, extending very little beyond

the hind angles of the prothorax in the female, the joints from the fourth considerably widened, becoming

longer and narrower outwards in the male, joint 3 small, slightly longer than 2. Prothorax almost square,

feebly sinuate at the sides behind ; the anterior angles somewhat broadly rounded and produced in front ;

the hind angles short, subacute, not carinate; the surface densely, rather coarsely punctate; the basal

median lobe extending as far backwards as the hind angles. Elytra about three and one-fourth times

the length of the prothorax, and much wider than it, flattened on the disc, very gradually narrowing from

the base in the male, much broader and widest beyond the middle in female; coarsely punctate-striate,

the striz shallow, the interstices flat and densely, rather coarsely punctate. Beneath closely, moderately

coarsely punctate. The basal joint of the hind tarsi a little longer than the second.

Var. The pronotum and propleure entirely rufous.

Length 7-84, breadth 17-23 millim. (¢ Y.)

Hab. Mexico, Juquila in Oaxaca (Sal/é).

Three males and one female, one of the males belonging to the variety. Allied to

L. quadraticollis, which also has the anterior angles of the thorax rounded and con-

‘siderably produced in front; but differing from it in the dense punctuation of the

upper surface, the coarser pubescence, the non-carinate hind angles of the thorax, the

flatter elytra, &c. ‘The males are much narrower than the same sex of that species,

with longer and stouter antenne, and the elytra gradually narrowing from the base.

The female is much broader than the male, with the elytra widening to beyond the

middle, the front less prominent, and the antenne short.

456 SERRICORNIA.

ATHOUS.

Athous, Eschscholtz, in Thon’s Archiv, ii. 1, p. 33 (1829); Candéze, Monogr. Elat. iii. p. 416 ; Cat.

Méthod. Elat. p. 150 *.

A genus containing a very large number of species, all but four of which are from

the Palearctic or Nearctic regions. From America, south of the United States, three

only have hitherto been described—one from Mexico, one from Ecuador, and one from

Chili. The genus, however, proves to be fairly well represented in Mexico and

Guatemala, whence ten are now recorded. The Central-American species belong

to two well-defined groups—one with the third tarsal joint lamellate, and the other

with the tarsi simple; some of those appertaining to the first group differ from all

their allies in the very long and acute hind angles of the thorax, the angles being

strongly recurved in A. photinoides and A. campanulatus. The first group will

probably have to be separated eventually from Athous; the genus, however, already

includes species with the second and third tarsal joints more or less lamellate. The

species here referred to Athous agree in the following characters :—front excavate,

prominent, truncate or emarginate (A. carinicollis) at the apex; antenne with the

third joint small, the fourth and succeeding joints subequal in length; posterior coxal

plates narrow, gradually widening inwards; tarsi simple, or with the third joint

lamellate, the basal joint elongate. Amongst the new species here described,

A. photinoides may be known by its mimetic resemblance to the Lampyrid genus

Photinus, and A. carinicoliis by the transversely carinate thorax.

a. Tarsi with the third joint lamellate, the fourth very small; front truncate or

feebly emarginate.

a’. Hind angles of the prothorax very elongate, acute.

a", The angles not or obsoletely carinate.

al, Prothorax transverse, with the hind angles strongly recurved at the

tip, the sloping lateral portions velvety-pubescent; body black, the

prothorax rufous, with two black vittz, the last two ventral segments

yellow ; antenne with the joints from the third broad and strongly

serrate . . . soe ee we . . photinoides.

bt, Prothorax longer than broad ; body brown.

. Hind angles strongly recurved at the tip; prothorax campanulate,

rather coarsely punctured . . . . . Loe eee - + campanulatus.

6°. Hind angles less elongate, scarcely recurved at the tip; prothorax

more parallel, more finely punctured . . . . . mexricanus.

6". The angles distinctly carinate, slightly recurved at the tip; prothorax

longer than broad, subcampanulate; body brown . . . . . - . . e@quinoctialis.

* For the synonymy, see Candéze, loc. cit.

ATHOUS. 457

b'. Hind angles of the prothorax moderately produced, acute.

e'. The angles distinctly carinate ; body brown.

c. Propleuree very sparsely punctured, smooth in the middle. . . . . marcidus.

a". Propleure closely punctured throughout . . . . aztecus.

d". The angles not carinate; body piceous or pitchy-black, the prothorax

partly rufous; elytrarugose. . . . 2... we eee ee ) PUGipennis.

6. Tarsi simple.

c'. Prothorax longer than broad, not transversely carinate before the base ; the

hind angles short, rather obtuse, and feebly carinate ; front truncate.

e. Body piceous or pitchy-brown; prothorax subparallel . . . . . . . angusticollis.

f". Body black; prothorax narrowing forwards . . . . . 1... « « funestus.

d'. Prothorax not so long as broad, with a sharp, transverse, sinuous carina

before the base; the hind angles longer, acute, and recurved at the tip,

uot carinate; front deeply emarginate; body black . . . . . . . . carinicollis.

1. Athous photinoides. (Tab. XX. figg. 9, 10,9.)

2. Elongate, rather broad, subopaque above (a narrow space down the middle of the prothorax excepted),

shining beneath, black; the prothorax rufous or obscure rufous, with the apical, basal, and lateral margins,

the hind angles, and two vitte on the middle of the disc, black or piceous, the fourth and fifth ventral

segments yellow, the propleure in great part rufous; the head, elytra, and under surface clothed with

fine, short, fuscous pubescence, that on the propleure and on the last two ventral segments paler; the

prothorax with longer and denser pubescence, that on the rufous lateral portions velvety, and golden in

colour in certain lights. Head densely, coarsely punctate, deeply triangularly excavate in front, the front

moderately prominent and truncate at the apex, the eyes comparatively small; antenna rather short,

extending to a little beyond the humeri, the joints from the third broadly widened and subtriangular,

becoming narrower and more parallel outwards, 3 as Jong as 4. Prothorax broad, transverse, rather

convex, campanuliform; the hind angles greatly produced, divergent, narrow, acute and strongly

recurved at the tip, not carinate; the surface very closely, finely punctate, the punctuation becoming

coarser towards the sides behind and along the middle of the disc, down the centre of which is a smooth,

shining, more or less distinctly canaliculate space. Scutellum densely punctured. Elytra three and one-

half times the length of the prothorax, and of about the same width as the latter at the base, broadly

flattened on the disc, sharply margined at the sides, subparallel to the middle, and gradually narrowing

thence to the apex, the apices rounded; extremely finely and lightly punctate-striate, the interstices quite

flat throughout, densely, rugulosely punctate, and at the base finely granulate. Beneath somewhat thickly,

finely punctate, the punctures on the prosternum coarser, the rufous portion of the propleurz densely and

very finely punctured. Legs rather stout, moderately long; the third joint of the tarsi slightly dilated

and sublamellate, the basal joint of the hind pair a little longer than the following three joints united,

the fourth joint very small.

Length 103-143, breadth 3-43 millim.

Hab. GtateMata, Totonicapam 8500 to 10,500 feet (Champion), Tecpan 7000 feet

(Conradt).

Thirteen specimens, all of which appear to be females. This remarkable insect bears

a great resemblance to Photinus guatemale, Gorh.—a species of Lampyride occurring

at the same locality,—not only in general appearance, but also in the sculpture of the

elytra and in the colour of the abdomen. It resembles the Chilian Campyloxenus

pyrothorax, Fairm. & Germ.* (}=Pyrophorus megalophysus, Philippi), from which it

* Campyloxenus pyrothorax has a prominent chin-piece to the prosternum ; it is allied to Pyrophorus.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, January 1896. 3N

458 SERRICORNTA.

differs in the very small fourth joint and the lamellate third joint of the tarsi. The

present species agrees structurally with Athous, but it possesses a very different facies

from any member of that genus known to me; the elongate, upturned hind angles of

the thorax is a character common to some of the other Central-American forms.

From Pyrophorus it may be known by the form of the tarsi and the prominent

front. The pubescence on the thorax is combed as it were in different directions, and

velvety in appearance, appearing golden in certain lights. The coloration of the

abdomen suggests the possibility of the insect being luminous, but this is probably

not the case. In Dr. Cardéze’s opinion A. photinoides should form the type of a

new genus. |

2. Athous campanulatus. (Tab. XX. fig. 11,2.)

Q. Very elongate, rather broad, shining, reddish brown, sparsely and finely pubescent. Head densely, some-

what coarsely punctate, triangularly depressed in front; the front moderately prominent, truncate at the

apex: the eyes moderately large; antenne slender, extending to a little heyond the humeri, joint

3 as long as 4. Prothorax distinctly longer than broad, slightly narrowed in front, moderately rounded

at the sides, the latter strongly sinuate behind; the hind angles very elongate, narrow, and strongly

divergent, acute and recurved at the tip, with indications of a fine carina anteriorly ; the surface closely

and somewhat coarsely punctate, the punctuation becoming denser and umbilicate at the sides and base,

the dise with a narrow longitudinal space down the-median third and a small space on either side of it

about the middle impunctate. Elytra three times the length of the prothorax, and a little wider than

it, subparallel to about the middle, and gradually narrowing beyond, flattened on the disc, the apices

subtruncate; finely punctate-striate, the interstices moderately convex, rather sparsely punctured, and

transversely rugulose, granulate at the base. Beneath thickly punctured, the metasternum smoother,

the punctures rather coarse on the prosternum, coarse and umbilicate on the propleura, and fine elsewhere.

Third tarsal joint sublamellate, the fourth very small.

Length 13, breadth 33 millim.

Hah. GuatEMALA, Totonicapam 10,000 feet (Champion).

One specimen, probably found under pine-bark. It has, unfortunately, the right

elytron abnormally formed. It is allied to A. mexicanus, of which the male only is

known, but differs from that insect in having the thorax more coarsely punctured,

with the hind angles more elongate and strongly recurved at the tip. The thorax

is elongate-campanuliform in shape.

3. Athous mexicanus. (Tab. XX. fig. 12, ¢.)

Athous mexicanus, Cand. Monogr. Elat. iii. p. 433 (g¢)’.

Hab. Mexico, Jacale in Vera Cruz (Sallé'), Jalapa (Hoge).

The type of this species is contained in the Sallé collection, and we have also received

an example of it from Herr Hoge; both are males. In this insect the hind angles of

the thorax are very greatly produced, narrow, and divergent, and obliquely, obsoletely

carinate anteriorly; the third tarsal joint is lamellate, the basal joint nearly as long as

the four others united.

ATHOUS. 459

4, Athous squinoctialis. (Tab. XX. fig. 13,2.)

Elongate, rather narrow, moderately shining, finely pubescent; brown or reddish-brown, the front of the head,

the hind angles of the prothorax, and the extreme base of the elytra more or less ferruginous, the legs

and antenne testaceous or fusco-testaceous. Head thickly, rather coarsely punctate, depressed in front,

the depression sometimes separated in the middle by a longitudinal ridge; the front prominent, subtruncate

at the apex; the eyes large; antennew rather slender, extending considerably beyond the humeri in the

male, shorter in the female. Prothorax moderately convex, a little longer than broad, gradually narrowing

from about the middle forwards, the sides rounded in front and sinuate behind; the hind angles long,

narrow, and divergent, acute and slightly recurved at the tip, rather sharply carinate ; the surface finely

and somewhat thickly punctate, the punctuation becoming closer and coarser at the sides, deeply canali-

culate down the middle. Elytra nearly three times the length of the prothorax, and of the same width

at the base, narrowing from a little below the shoulders in the male, more parallel in front in the female,

the apices obliquely truncate, with the outer apical angle rounded; finely punctate-striate, the interstices

moderately convex and sparsely punctate. Beneath, the propleure included, thickly, finely punctate.

Third tarsal joint lamellate, the fourth very small.

Length 9-10, breadth 21-24 millim. (¢ 9.)

Hab. Mexico, Jalapa (//6ge); Guatemaua, San Gerdénimo and Calderas (Champion).

A male from San Gerénimo and a female from each of the other localities. This

insect is allied to A. mexicanus, but it is less depressed; the thorax has the sides more

rounded in front and more sinuate behind (the general shape being subcampanulate),

with the hind angles slightly upturned at the tip; and the elytra are less parallel,

narrowing almost from the base in the male, with the apices obtuse. Compared with

A. campanulatus it differs in its much smaller size, and in having shorter, distinctly

carinate hind angles to the thorax.

5. Athous marcidus.

Moderately elongate, narrow, shining, finely and rather sparsely pubescent; brown, the front of the head,

the hind angles of the prothorax, and the extreme base and suture of the elytra paler; the underside

castaneous or reddish-brown ; the antennz fusco-testaceous, with the basal joint testaceous, the legs pale

testaceous. Head thickly, somewhat finely punctate, triangularly depressed in front; the front moderately

prominent; the eyes not very large; antenne slender, extending to some distance beyond the humeri.

Prothorax as long as broad, somewhat obliquely narrowing from the basal third forwards, and sinuate at

the sides behind; the hind angles moderately produced, acute, and divergent, slightly recurved at the tip,

and sharply carinate; the surface very finely and rather sparsely punctate, obsoletely canaliculate behind.

Elytra three times the length of the prothorax, and of the same width at the base, narrowing from about

the basal third, rounded at the apex; punctate-striate, the interstices feebly convex and somewhat roughly

punctured, granulate at the base. Beneath very sparsely and finely, the ventral segments more closely,

punctate, the propleuree smooth in the middle. Third tarsal joint dilated and lamellate, the fourth

very small.

Length 7-74, breadth 17 millim.

Hab. Mexico, Oaxaca (Hége).

Two examples, probably males. Allied to A. equinoctialis, but smaller and less

elongate; the thorax more conical in shape (it being more narrowed and less rounded

at the sides anteriorly), more finely punctured, and indistinctly canaliculate behind ;

the under surface much more sparsely punctate, the propleure smooth in the middle.

3N 2

460 SERRICORNIA.

6. Athous aztecus.

Moderately elongate, narrow, slightly shining, finely pubescent; pitchy-brown, the front of the head, the hind

angles of the prothorax, and the extreme base of the elytra obscure ferruginous; beneath piceous,

reddish-brown at the sides; the antenne and legs testaceous. Head closely, somewhat coarsely punctate,

depressed in front; the front prominent, broadly truncate at the apex ; the eyes large; antenne rather

slender, extending to considerably beyond the humeri. Prothorax a little longer than broad, with the

sides slightly converging and feebly rounded in front and sinuate behind ; the hind angles moderately

produced, divergent, acute, and slightly recurved at the tip, and rather sharply carinate; the surface

closely and somewhat finely punctured, the punctuation becoming a little more diffuse on the disc in front,

obsoletely canaliculate behind. Elytra two and three-fourths the length of the prothorax, and of about

the same width at the base, narrowing from a little before the middle to the apex, the apices rounded ;

punctate-striate, the interstices feebly convex and somewhat thickly punctured, granulate at the base.

Beneath, the propleurw included, closely punctured. Third tarsal joint dilated and lamellate, the fourth

very small,

Length 83, breadth 2-2} millim.

Hab. Mexico, Juquila in Oaxaca (Sallé).

Two examples, no doubt males. Allied to A. marcidus, but broader and duller, and

also differing from that insect in its larger eyes, the more prominent front, the closely

and much more distinctly punctured thorax, which is more rounded at the sides in

front and has shorter hind angles, the closely punctured under surface, &c.

7. Athous rugipennis. (Tab. XX. fig. 14, 3.)

Moderately elongate, narrow, subopaque, somewhat thickly clothed with yellowish-cinereous pubescence, piceous

or pitchy-black, the head in front and the sides of the prothorax broadly pitchy-red, the head and

prothorax sometimes ferruginous or obscure rufous, and the latter with an abbreviated median vitta only

piceous; beneath shining, piceous, the propleure sometimes obscure rufous; antenne pitchy-black, the

basal joint sometimes ferruginous ; legs pale testaceous, the tarsi and the apices of the tibie infuscate

in one example. Head closely, moderately finely punctate, excavate in front; the front prominent,

subtruncate in the middle at the apex; the eyes moderately large; antenne rather stout, about two-fifths

of the length of the body in the male, shorter in the female. Prothorax as long as broad, narrowing from

about the middle forwards, the sides rounded anteriorly and feebly sinuate behind; the hind angles

moderately produced, acute, not or very slightly divergent, and not carinate; the surface closely and

finely punctate throughout, and canaliculate before the base. LKlytra three times the length of the

prothorax, and of the same width at the base, narrowing from a little before the middle to the apex,

the apices rounded ; deeply punctate-striate, the interstices rugose and rather convex. Beneath closely

punctured. Legs slender; third tarsal joint dilated and lamellate, the fourth very small.

Length 6-64, breadth 1§ millim. (¢ Q.)

Hab. Guatemata, Purula in Vera Paz (Champion).

Three examples. This small species differs greatly from the other Central-American

members of the genus. The colour of the head and thorax is variable, the rufous

colour predominating in two examples. Dr. Candéze has examined one of them, and

he suggests an affinity with Hudactylus; but 1 can find nothing to distinguish the

insect structurally from Athous mexicanus and its allies.

ATHOUS. 461

8. Athous angusticollis.

g. Very elongate, shining, somewhat sparsely pubescent; piceous, paler beneath, the elytra brown or pitchy-

brown, the antenna, legs, and epipleure reddish-brown. Head closely, rather finely punctate, very deeply

triangularly excavate in front; the front prominent, broadly truncate at the apex; the eyes large;

antenne moderately stout, serrate, extending to about the basal fifth of the elytra. Prothorax considerably

longer than broad, subparallel, slightly sinuate at the sides behind; the hind angles divergent, not much

produced, rather obtuse, and finely carinate; the surface closely, moderately finely punctate, the

punctuation becoming more crowded and umbilicate towards the sides and base, the disc transversely

flattened or depressed in the middle at the apex and feebly canaliculate behind. Elytra three times the

length of the prothorax, and much wider than it, flattened on the disc, gradually narrowing from the

middle to the apex, the apices rounded; punctate-striate, the interstices moderately convex and thickly

punctured. Beneath closely punctured, the punctures on the propleure coarse and umbilicate. Tarsi

simple.

Length 107-12, breadth 23-3 millim.

Hab. Mexico, Pinos Altos in Chihuahua, Rio Mescales (Buchan-Hepburn).

Two examples. In its long narrow thorax, deeply triangularly excavate front, simple

tarsi, &c., this insect approaches the North-American A. ferruginosus, Eschsch., and

A. cribratus, Lec., but differs from both of them in having the thorax more finely

punctured, with the hind angles finely carinate. The elytral sculpture resembles that

of A. ferruginosus, except that the strie are not so coarsely punctured.

9. Athous funestus. (Tab. XX. fig. 15,2.)

3. Elongate, depressed, subopayue ; black or pitchy-black, the legs piceous, the claws testaceous ; somewhat

thickly clothed with long, decumbent, fuscous hairs. Head densely, coarsely punctate, deeply excavate

in front ; the front prominent, broadly truncate at the apex; the eyes moderately large; antenne rather

short, extending to a little beyond the humeri, the joints from the third dilated and strongly serrate,

3as long as 4. Prothorax slightly longer than broad, gradually narrowing trom the base, the sides

almost straight, feebly sinuate behind; the hind angles short, obtuse, slightly divergent, and feebly

carinate, the carina placed near the margin and not extending to the tip; the surface densely and rather

coarsely umbilicate-punctate, the punctuation becoming a little more diffuse on the middle of the disc in

front. Elytra three times the length of the prothorax, and considerably wider than it, subparallel to

the middle; finely punctate-striate, the interstices flat, transversely rugulose, and thickly punctured.

Beneath closely punctured. ‘Tarsi simple, the basal joint of the hind pair about as long as the following

three joints united.

Length 10-104, breadth 23-3 millim.

Hab. Mexico, Ciudad in Durango (forrer).

Three examples, all males. ‘This species somewhat resembles A. scissus, Lec., from

California; but it is more depressed, the thorax is straighter at the sides and gradually

narrowed from the base, the elytra are much more finely punctate-striate, and the third

tarsal joint is simple.

10. Athous carinicollis. (Tab. XX. figg. 16,3; 164, prothorax.)

- Elongate, rather depressed, subopaque, black or pitchy-black, the legs piceous, with the tarsi partly or entirely

testaceous; clothed with fine, fuscous pubescence. Head densely and coarsely umbilicate-punctate; the

front concave, prominent, deeply emarginate in the middle; the eyes moderately large; antenna slender,

rather more than half the length of the body in the male, much shorter in the female, joint 3 as long as 4.

462 SERRICORNIA.

Prothorax slightly broader than long in the male, more transverse in the female, gradually narrowing

from the base, the sides rounded anteriorly ; the hind angles moderately produced and strongly divergent

in the male, much shorter and not divergent in the female, acutely recurved at the tip in both sexes, not

carinate; the surface densely and coarsely umbilicate-punctate, obsoletely canaliculate behind, and with a

sharp, transverse, sinuous carina before the base extending on either side to near the lateral margin, the

space between this and the base strongly declivous and more finely punctured. Elytra a little more than

three times the length of the prothorax, and of about the same width at the base, subparallel to the

middle in both sexes; finely punctate-striate, the interstices flat, transversely rugulose and closely punc-

tured. Beneath closely punctured. Legs slender ; tarsi filiform, the basal joint of the hind pair about as

long as the following three joints united.

Length 63-72, breadth 17-23 millim. (¢ 9.)

Hab. Mexico, Chilpancingo 4600 feet, and Omilteme 8000 feet, both in Guerrero

(H. H. Smith).

A male from Chilpancingo and a female from Omilteme. This species may be at

once recognized by the long, sharp, sinuous, transverse carina near the base of the

thorax. ‘The head appears bilobed in front, owing to the deep emargination in the

centre. In this respect the insect resembles the two Mexican species of Limonius,

but differs from them in the more elongate basal joint of the tarsi; it is therefore best

placed in Athous.

ACANTHATHOUS.

Head with a prominent, truncate frontal plate, and deeply excavate; mandibles bifid; antenne with the

second joint very small, the others elongate and subequal; prothorax with exceedingly elongate, narrow,

divergent hind angles, which are recurved at the tip; elytra broadly truncate at the apex, the outer apical

angle armed with a long sharp spine; prosternum broad, with a broadly rounded, prominent chin-piece,

the process moderately long, horizontal, the sutures straight and single; mesosternum depressed, the

cavity long and deep, the sides not thickened ; posterior coxa] plates narrow, gradually widening inwards ;

fifth ventral segment armed with a long spine at the apex; tarsi slender, the third joint widened and

sublamellate, the fourth very small, the basal joint as long as the following three joints united.

The above characters are taken from a single species from the Pacific slope of

Guatemala. In the excessively elongate hind angles of the thorax, and the spinous

apex of the elytra and last ventral segment, it approaches the eastern genus Pachyderes,

belonging to the group Eudactylini, near which the insect ought to be placed, in

Dr. Candéze’s opinion. The form of the front, the slender tarsi, with lamellate third

joint, the narrow coxal plates, &c., seem to me, however, to bring it much nearer

Athous. As amatter of fact, it only differs from Athous mexicanus and its allies in the

still more elongate hind angles of the thorax and the spinous apex of the body.

1. Acanthathous pachyderoides. (Tab. XX. fig. 17, ¢.)

Elongate, narrow, moderately convex, shining; piceous or pitchy-brown, the head sometimes reddish-brown

in front; the elytra pitchy-brown or brown, with nearly the apical half indeterminately fulvous or

reddish-brown, this colour in some specimens extending forwards along the suture and on the outer part

of the disc; the abdomen in great part fulvous or reddish-brown; the antenne and legs reddish-brown or

fusco-testaceous; above and beneath sparsely clothed with fine decumbent fulvo-cinereous pubescence.

ACANTHATHOUS.—PYROPHORUS. 463

Head thickly, finely punctate, deeply triangularly excavate in front; the front prominent, broadly truncate

at the apex; the eyes large; antenne slender, about half the length of the body in the male, much shorter

in the female, joint 2 very short, 3 elongate, as long as 4. Prothorax as long as broad, very gradually

narrowing from the base in the male, a little more rounded at the sides in the female, the sides sharply

margined; the hind angles excessively elongate, narrow, strongly divergent, acute, and recurved at the

tip, carinate, the carina not quite reaching the apex; the surface finely and rather sparsely punctured,

the punctuation becoming coarser and closer at the sides behind, ohsoletely canaliculate down the middle in

some specimens. Elytra three times the length of the prothorax, and of about the same width as it at

the base, obliquely narrowing from about the middle, depressed at the base near the scutellum, and broadly

truneate at the apex, with the outer apical angle produced into a long, sharp spine, and the inner angle

subacute; finely punctate-striate, the interstices convex, flatter towards the suture, finely and rather

sparsely punctate, subgranulate on the basal declivity. Beneath finely and rather sparsely punctured ;

fifth ventral segment armed with a long, sharp spine in the centre at the apex.

Length 9-103, breadth 2}—22, to tips of the hind angles of the prothorax 3-33 millim. (¢ 9.)

Hab. GuatEmaa, Cerro Zunil 4000 to 5000 feet (Champion).

‘Ten examples.

Group PYROPHORINI.

PYROPHORUS.

Pyrophorus, Uliger, Mag. Ges. nat. Freund. i. p. 141 (1809) ; Germar, Zeitschr. fiir Ent. iii. p. 1;

Candéze, Monogr. Elat. iv. p. 3; Cat. Méthod. Elat. p. 157.

Hypsiophthalmus, Uatreille, Ann. Soc. Ent. Fr. ii. p. 145 (1834).

Belania, Castelnau, Hist. Nat. Ins., Col. 1. p. 236 (1840).

Stilpnus, Castelnau, loc. cit.

Phanophorus, Solier, in Gay’s Hist. fis. y polit. de Chile, Zool. v. p. 26 (1851).

This remarkable genus, characteristic of the warmer regions of the New World,

contains eighty-five * described species, eleven only of which inhabit Central America,

to which five others are now added. One species inhabits the Southern United States

and Northern Mexico, and a few occur in Chili, Uruguay, and the Argentine Republic,

the remainder being confined to the tropical portions of the American continent and

the Antilles. With the exception of two allied forms found in the New Hebrides and

the Fiji Islands, belonging to the genus Photophorus, Cand., and two from New Caledonia

described by M. Fleutiaux, probably not really appertaining to Pyrophorus, the

luminous Elateride are entirely absent from the Old World. In some few species

included in Pyrophorus by Dr. Candéze the luminous vesicles on the thorax are indistinct

or obsolete two of these forms—P. melanoxanthus and the Colombian P. abnormis,

Cand., which also differ in the form of the meso- and metasternum,—are here treated

as generically distinct under the name Alampes.

The Central-American Pyrophori belong to Sections I. or II. of Candéze, his Sections

IlI._VII. not being represented within our limits. The various species are very

closely allied, and in some cases difficult to separate, but many of them can be easily

* The two species from New Caledonia are not counted.

464 SERRICORNIA.

identified by the form of the genitalia of the males *, figures of these parts of all but

one of the Central-American representatives being given on our Plate. ‘The form of

the sterna also affords good differential characters in certain species, as in P. noctilucus,

P. stella, P. radians, &c. ‘The luminous vesicles are raised and very prominent in the

first section, flatter and less distinct, rarely obsolete, in the second section. The

abdomen is also luminous at the base in various Pyrophori, the membranous luminous

space varying in extent according to the species; but the luminous portion is not

visible in dried specimens till the abdomen is removed, it being sometimes reduced

(P. radians) to a very narrow space immediately beneath the intercoxal process, and in

others (P. strabus) extending across nearly the entire width of the segment. ‘The

terminal dorsal segment is probably luminous in P. strabus and others. So far as I have

noticed myself, the thoracic vesicles emit a greenish light and the abdomen a reddish

light in one of the large species, P. pellucens, a common Central-American insect.

From Mexico one species only, P. occidentalis, is known from the Pacific coast,

the others inhabiting the central plateau or the Atlantic slope. No Pyrophorus has

been noticed as yet on the Pacific slope of Guatemala.

These insects, known everywhere in Central America under the name of ‘‘ Cocuyos,”

have a much more rapid flight than the luminous Lampyride, and they emit a steady

light, instead of an intermittent one, the light being brilliant in both sexes. They

fly for a short time after dark; the smaller forms may be taken in plenty a little later

in the evening at rest upon leaves.

a. Antenne very short in both sexes, the third joint shorter than the fourth ;

prothorax broader than long, with prominent raised vesicles.

a’. Propleurz not marked with yellow beneath the vesicles.

a". The vesicles placed close to the lateral margin, and parallel with it ; pro-

sternum declivous behind. . . 2. . . 2. eee eee ntoctilucus.

b". The vesicles distant from the lateral margin, oblique ; prosternum not

declivous behind. . . . . . . . we ee ee eee tras. VY

b'. Propleuree marked with yellow or reddish-yellow beneath the vesicles; pro-

sternum not declivous behind.

cl, Elytra not more than three times the length of the prothorax ; the latter

convex.

a", Elytra sharply mucronate at the apex; prothorax densely punctured,

the sides rounded or feebly sinuate: size large . . . . . . . . pellucens. \/

b". Elytra feebly mucronate at the apex; prothorax more spereely punc-

tured, the sides distinctly sinuate: size smaller. . . . . indistinctus. Y

d", Elytra more than three times the length of the prothorax, sharply mucro-

nate at the apex ; prothorax moderately convex, sinuate at the sides, and

densely punctured: sizelarge . . . 2... 1 ee ee ee lars.

* Schwarz, Deutsche ent. Zeitschr. 1892, t. 2, has figured the male genitalia of a large number of Palzarctic

Melanotini: these, however, show very little diversity in structure.

PYROPHORUWS. 465

6. Antenne more elongate, reaching to the hind angles of the prothorax, or to beyond

them, in the males, the third joint shorter than the fourth; prothorax as long

as, or longer than, broad, with or without vesicles, the latter less prominent ;

the propleurz yellow beneath them ; prosternum not declivous behind.

c'’. Third antennal joint very short, not longer than the second; prothorax with

moderately large vesicles.

e". Prothorax in the female with, at most, a small tubercle in the centre at

the base, the surface moderately coarsely, somewhat sparsely punctate ;

elytra finely or rather coarsely punctate-striate. . . . . . . . . fulgidus.

f". Prothorax in the female with a prominent laterally compressed tubercle

in the centre at the base, the surface densely, coarsely punctate; elytra

coarsely punctate-striate . . . , we ee ww we ww SUPLUS.

a'. Third antennal joint distinctly longer than the second.

g'. Prothorax with well-defined vesicles.

ce", Elytra distinctly divaricate and sharply mucronate at the apex.

a’. Mesosternum with the sides of the cavity strongly raised behind ;

prothoracic vesicles small, the hind angles stout. . . . . . . caudatus.

b*. Mesosternum declivous ; prothoracic vesicles large and raised, the

hind angles narrow and abruptly divergent . . . . . . « . hAavaniensis.

dad". Klytra not or feebly divaricate at the apex.

c’. Prothorax with a laterally compressed tubercle in the centre at the

base ; elytra conjointly rounded at the apex.

a’. Antennz extending very little beyond the hind angles of the pro-

thorax in the male.

a’. The prothorax with the vesicles moderately large or small, and

distinctly raised, the tubercle at the base elongate and promi-

nent; the elytra moderatelylong . . . . . . . . . =. ornamentum.

6°. The prothorax with the vesicles very large and raised, the

tubercle at the base shorter and abruptly raised in front; the

elytra less elongate. . . occidentals.

6°. Antenne extending considerably beyond the hind angles of the

prothorax, and also less dilated, in the male; the prothorax with

the vesicles small and not or very feebly raised, the tubercle at the

basesmall . . . 1. we ee ee ee merticanus. LV

d‘. Prothorax with a conical or transversely compressed tubercle in the

centre at the base, the vesicles not prominent.

c’. Antenne extending very little beyond the hind angles of the pro-

thorax in the male.

c’. Prothorax densely punctured, the tubercle at the base small;

antenne shorter in the male; elytra obsoletely mucronate at

the apex . . 2. 1. 6 6 ew ew we we ee . physoderus.

. Prothorax more sparsely punctured, the tubercle at the base

more prominent; antenne longer in the male; elytra finely

mucronate atthe apex. . . .. ....... . .. Stella,

BIOL, CENTR.-AMER., Coleopt., Vol. ILI. Pt. 1, January 1896. 30

466 SERRICORNIA.

d’. Antenne extending considerably beyond the hind angles of the

prothorax in the male; the tubercle at the base of the latter

prominent; elytra mucronate at the apex . . «+ - + + + + radians.

h". Prothorax without distinct’ vesicles; upper surface testaceous or rufo-

testaceous, with a broad median vitta on the prothorax, the scutellum,

and the elytra at the sides from before the middle to the apex, broadly,

black 2 2. ee ee ee ee ee eee ee restinetus.

1. Pyrophorus ‘noctilucus. (Tab. XX. fig. 18, genitalia, ¢ -)

Elater noctilucus, Linn. Syst. Nat. 10th edit. i. p. 404 (1758)*; De Geer, Mém. Ins. iv. p. 160,

t. 18. fig. 11 (1774)?; Oliv. Ent. ii, no. 31, p. 15, t. 2. fig. 14a@°; Herbst, Kafer, ix. p. 331,

t. 158. fig 1*. 0 0 —

Pyrophorus noctilucus, Eschsch. in Thon’s Archiv, ii. 1, p. 82°; Germ. Zeitschr. fiir Ent. iii.

p. 18°; Cand. Monogr. Elat. iv. p. 14”.

Pyrophorus divergens, Eschsch. loc. cit. p. 82 °.

Pyrophorus nyctophanus, Germ. loc. cit. p. 12°.

Pyrophorus phosphorescens, Getm. loc. cit. p. 19”.

Hab. Mexico (Sallé, ex coll. Sturm); Costa Rica (Van Patten).—TropicaL Souts

America 2247 to Brazil589; Anrintes467, Cuba, San Domingo, Jamaica?®, Guade-

loupe ? 1°,

There is a specimen of this species (mixed with the series of P. strabus) in the Sallé

collection, from that of Sturm, labelled ‘“‘ Mexico”; and we have received another from

Van Patten, as from Costa Rica. This is the only evidence we have of this species

occurring in Central America, where it is replaced by P. pellucens. The Mexican

habitat requires confirmation. In P. noctilucus the prosternum is raised on either side

between the: cox and declivous behind them, the process thence to the apex being

horizontal ; in the allied P. pellucens the prosternum is not declivous behind the coxe,

and the process is extended horizontally from the intercoxal portion.

2. Pyrophorus strabus. (Tab. XX. figg. 19, genitalia, ¢; 19a, base of

abdomen.)

Pyrophorus strabus, Germ. Zeitschr. fiir Ent. i. p.15'; Sturm, Cat. p.67*; Cand. Monogr. Elat.

iv. p. 16°.

Pyrophorus laternarius, Sturm, in litt.

Hab. Mexico1?% (Sallé, ex coll. Sturm), Santecomapan, Cosamaloapam, Teapa,

Oaxaca (Sad/é), Misantla, Jalapa (Hége); British Honpuras (Blancaneauz).

Not uncommon in Eastern Mexico, and also extending into British Honduras, whence

we have received two specimens. ‘This species resembles P. pedlucens, but has larger

and more oblique vesicles on the thorax, the flanks of the latter immaculate, and the

abdomen, when detached from the body, shows a much broader luminous space at the

PYROPHORUS. 467

base; the terminal dorsal segment is pallid in colour and, no doubt, also luminous.

In the form of the genitalia of the males it differs greatly from P. pellucens, in this

respect showing a close affinity with P. nocti/ucus. P. strabus probably has greater

luminous powers than any other known Pyrophorus.

3. Pyrophorus pellucens. (Tab. XX. figg. 20, genitalia, g; 21, genitalia, 9;

21a, base of abdomen.) ’

Pyrophorus pellucens, Eschsch. in Thon’s Archiv, ii. 1, p. 32’; Germ. Zeitschr, fiir Ent. iii. p. 17?;

Cand. Monogr. Elat. iv. p. 18°.

Pyrophorus surinamensis, Sturm, Cat. p. 67 (1843) *.

Pyrophorus luscus, Cand. Ann. Soc. Ent. Belg. 1889, p. 113 (Elat. Nouv. iv. p. 47) °.

Hab. Mexico (coll. Janson, ex Dejean), Playa Vicente, Chiapas (Sallé), Misantla

(Hoge), Atoyac, Teapa (H. H. Smith); Brrrisu Honpuras, R. Sarstoon (Blancaneaux) ;

Guatemala °, Yzabal (Sallé), Cubilguitz, Coban, Senahu, San Juan, Chacoj, Panima, and

Purula, all in Vera Paz (Champion); Nicaragua, Chontales (LZ. M. Janson); Costa

Rica (Pittier, in Mus. Brit.; Sallé, Van Patten); Panama (Salvin), Bugaba, Volcan de

Chiriqui (Champion), Chiriqui (Aibbe)—CotomBia*; Guiana 234; Ecuapor; Brazin} 23;

? ANTILLES.

This is the common large fire-fly, or “cocuyo,” of Central America. According to

Dr. Candéze’, it ranges from California to Rio Janeiro; the locality ‘ California,”

however, requires confirmation, as we have no evidence of the insect occurring north

of the Mexican State of Vera Cruz. P. pellucens is chiefly confined to the low

country, it being seldom seen at a higher elevation than 3000 feet. The genitalia of

the males are very differently formed from those of the closely-allied P. noctilucus.

The flanks of the thorax are marked beneath the vesicles with orange-yellow, of which

there is no trace in P. noctilucus. P. luscus, the types of which I have examined, does

not differ from P. pellucens.

4. Pyrophorus indistinctus. (Tab. XX. fig. 22, genitalia, ¢ .)

Pyrophorus indistinctus, Germ. Zeitschr. fiir Ent. iii. p. 20’; Cand. Monogr. Elat. iv. p. 20’,

Hab. Mexico, Teapa in Tabasco (Sallé); Nicaracua, Chontales (£. M. Janson) ;

Costa Rica (Van Patten).—Gutana, Demerara’, Cayenne !?; AMAzONS.

Seven examples of this insect have been received from within our limits. P. indi-

stinctus is a very close ally of P. pellucens; but it is smaller, the thorax is more

sparsely punctured and has the sides less rounded and more sinuate, and the apices of

the elytra are more feebly mucronate. The genitalia of the males scarcely differ in

form in the two insects. The two Teapa specimens are discoloured and in bad

condition ; they differ inter se, one of them not showing any trace of the light colour

on the propleure.

302

468 SERRICORNIA.

5. Pyrophorus clarus. (Tab. XX. fig. 23, genitalia, ¢ .)

Pyrophorus clarus, Germ. Zeitschr. fir Ent. iii. p. 18*; Cand. Monogr. Elat. iv. p. 19, t. 1. fig. 5.

Pyrophorus angustus, Blanch. in d’Orbigny’s Voyage dans l’Amér. mérid. vi. 2, p. 139°.

Hab. Costa Rica (Van Patten), Caché (Rogers); Panama, Chiriqui (fibbe).—

Cotomsta, Bogota 1? ; VENEZUELA; Ecuapor; Botivia ®.

We have received ten specimens of this species, nine from Costa Rica and one from

Panama. P. clarus is closely allied to P. pellucens, but differs from that insect in its

more elongate shape; the males have the thorax less convex, relatively narrower, less

rounded at the sides, the latter being distinctly sinuate before the middle, and the hind

angles more divergent. The genitalia of the males are very similar, as will be seen by

a reference to our Plate.

6. Pyrophorus fulgidus. (Tab. XX. fig. 24, genitalia, ¢ .)

Pyrophorus fulgidus, Germ. Zeitschr. fiir Ent. iii. p. 24 (2) *; Cand. Monogr. Elat. iv. p. 22°.

3. Pyrophorus adumbratus, Germ. loc. cit. p. 27°.

Hab. Costa Rica (Pittier, in Mus. Brit.) ; PANAMA, Bugaba, Volcan de Chiriqui

(Champion), Chiriqui (Ribbe).—Cotompia!?; VENezveLA?; Brazin+??; Perv.

Of this species I have seen nine examples from within our limits. The males are

very much smaller than the females. Some of the females have a small laterally

compressed tubercle at the base of the thorax in the middle, of which there is little, if

any, trace in the males.

P. fulgidus and the following species, P. sirius, are the only Central-American

Pyrophori with the second and third joints of the antenne very short and equal in

length.

7. Pyrophorus sirius.

Q. Pyrophorus sirius, Cand. Compt.-rend. Soc. Ent. Belg. 1878, p. clxviii (Elat. Nouv. ii. p. 41)’.

Pyrophorus syrius, Cand. Cat. Méthod. Elat. p. 158°.

Hab. Costa Rica??.

Dr. Candéze has kindly lent me the type (2) of this species for examination.

P. sirius is closely allied to P. fulgidus, from large-sized females of which it may be

known by its more elongate shape, the more coarsely and more densely punctured

thorax, the laterally compressed tubercle at the base of which is more prominent, and

the coarsely punctate-striate elytra.

8. Pyrophorus caudatus. (Tab. XX. fig. 25, genitalia, ¢.)

Very elongate, rather narrow, moderately convex, shining, fusco-cinereo-pubescent; obscure castaneous, the

elytra castaneous ; the prothorax with a rather small, oval, slightly raised, yellow vesicle on either side

before the base and distant from the lateral margin; the propleure with a large yellow patch behind ;

PYROPHORUS. 469

the antenne and legs brown. Head thickly, coarsely punctate, deeply triangularly depressed in front,

the eyes large ; antenne: strongly serrate, stout, and extending two joints beyond the hind argles of the

prothorax in the male, less dilated and a little shorter in the female, the third joint twice the length of

the second and about one-half the length of the fourth joint. Prothorax considerably longer than broad,

flattened on either side of the middle of the disc; the sides feebly rounded and gradually converging in

front and almost parallel behind; the hind angles long and strongly divergent, rather stout, finely

carinate ; the surface densely, finely punctate, the punctuation much more diffuse on the middle of the

disc, down the centre of which are traces of a smooth, slightly impressed median line; the base with a

rather prominent transversely compressed tubercle in the centre. Elytra about two and three-fourths

longer than the prothorax, somewhat rapidly narrowing from a little below the base in both sexes ; finely

punctate-striate, the interstices flat and densely, rugulosely punctate ; the apices distinctly dehiscent and

strongly acuminate, Beneath closely and finely, the prosternum coarsely and sparsely, punctate; meso-

sternum with the sides of the cavity considerably raised, subhorizontal behind, almost vertical in front.

Length 233-254, breadth 63-7 millim. (¢ @.)

Hab. Costa Rica (Van Patten).

One pair. Allied to P. lychniferus, Germ., and P. havaniensis, Cast. (=causticus,

Germ.), differing from the first-mentioned in the longer and more parallel thorax in

the male, and from the latter in the smaller vesicles and the stouter and less abruptly

divergent hind angles of the thorax; also from both of these species in the form

of the genitalia of the male. In the form of the mesosternum it agrees with

P. lychniferus.

9. Pyrophorus havaniensis. (Tab. XX. fi. 26, genitalia, .)

9. Pyrophorus havaniensis, Cast. Hist. Nat. Ins., Col. i. p. 236 (1840)*; Cand. Cat. Méthod.

Elat. p. 159°.

Pyrophorus causticus, Germ. Zeitschr, fir Ent. ii. p. 36 (1841)*; Cand. Monogr. Elat. iv. p. 284.

Hab. Mexico (Sallé).—Cvpa } 234,

In the Sallé collection there is a male example of this species labelled “ Mexico,”

but the locality requires confirmation. This insect agrees perfectly with numerous

others from Cuba in the Janson collection, and it has the genitalia of the male

similarly formed.

10. Pyrophorus ornamentum. (Tab. XX. fig. 27, genitalia, ¢ .)

Pyrophorus ornamentum, Germ. Zeitschr. fiir Ent. iii, p. 89°; Cand. Monogr. Elat. iv. p. 84°.

3&. Pyrophorus gemmiferus, Germ. loc. cit. p. 26°.

Hab. Mexico'~*, Ciudad in Durango (orrer), Puebla (Sad/é), Cuernavaca in

Morelos (Sallé, Hoge), Yautepec in Morelos, Iguala in Guerrero (Hége), Puente de

Ixtla and Mescala in Guerrero (7. H. Smith).

I have seen thirty-five specimens of this species, which may be known from most of

its allies by the prominent, oblong, laterally compressed elevation at the base of the

thorax in the middle, and also by the peculiar form of the genitalia of the males. The

vesicles on the thorax are large and distinctly raised in most of our specimens; they

470 | SERRICORNIA.

are small in the form gemmiferus. The antenne are considerably dilated and extend

very little beyond the hind angles of the thorax in the males, shorter in the females ;

the third joint is not much longer than the second. Some of the specimens in the

Janson collection have the thorax opaque. P. ornamentum seems to be restricted

to the central plateau of Mexico.

11. Pyrophorus occidentalis. (Tab. XX. figg. 28,¢; 284, genitalia, 3.)

Elongate, rather narrow, the females a little broader, moderately convex, shining, fusco-cinereo- pubescent ;

pitchy-brown or brown, the prothorax with a large, oval, oblique, slightly raised, yellow vesicle on either

side behind, this extending to the lateral margin and almost to the base, the propleure with a corresponding

yellow patch. Head closely, coarsely punctate, broadly depressed in the middle in front, the eyes large

and rather prominent; antenne stout, serrate, extending very little beyond the hind angles of the

prothorax in the male, shorter in the female, the third joint slightly longer than the second. Prothorax

as long as broad, rather convex, flattened or depressed on either side of the middle of the disc; the sides

moderately rounded, slightly constricted behind and converging in front; the hind angles long and

divergent, without distinct carina; the surface densely, moderately coarsely punctate, the punctuation a

little more scattered on the middle of the disc, down the centre of which is a smooth line; the base with

a prominent laterally compressed tubercle in the centre. Elytra two and one-half times the length of the

prothorax, slightly rounded at the sides, narrowing from about the middle; finely or somewhat coarsely

punctate-striate, the interstices flat or feebly convex, and densely, rugulosely punctate; the apices

conjointly rounded, the sutural angles sharp. Beneath closely and finely, the prosternum coarsely

aud sparsely, punctate; mesosternum with the sides of the cavity slightly raised behind.

Length 17-183, breadth 5-52 millim. (¢ 2.)

Hab. Mexico, Tres Marias Is. (Forrer), Acapulco (Hége).

Six specimens, three from each locality, varying very little in size. Closely allied to

P. ornamentum, but differing from it in the less elongate thoracic tubercle (this being

abruptly raised in front) and the relatively shorter elytra. The thoracic vesicles are

very large and raised. The genitalia of the males are very differently formed from

those of any of the allied species. P. occidentalis appears to be confined to the Pacific

coast of Mexico and the adjacent Tres Marias Islands.

12. Pyrophorus mexicanus. (ab. XX. fig. 29, genitalia, g.)

Elongate, rather narrow, the females broader, moderately convex, shining, fusco- or fusco-cinereo-pubescent ;

piceous, pitchy-brown, or brown; the prothorax with a moderately large, ovate, oblique yellow vesicle on

either side behind, this being placed near the lateral margin®and in some specimens extending to near

the base; the propleure with a large yellow patch behind; the legs and antenne brown or ferruginous.

Head closely, coarsely punctate, broadly depressed in the middle in front; the eyes large, rather

prominent in the male; antenne moderately stout, serrate, extending to considerably beyond the hind

angles of the prothorax in the male, and scarcely reaching these angles in the female, the third joint a

good deal longer than the second. Prothorax as long as or a little longer than broad, feebly convex, and

flattened or depressed on either side of the middle of the disc in the male, convex and shorter in the

female; the sides converging in front and feebly rounded in the male, strongly rounded in the female ;

the hind angles long and divergent, carinate; the surface closely, moderately coarsely punctate, the punc-

tuation becoming a little more scattered on the middle of the disc, down the centre of which is a smooth

median line, this being impressed towards the base in some specimens ; the base with a small laterally

compressed tubercle in the centre in the male, and a larger and more prominent longitudinal elevation in

the female. Elytra about two and two-thirds longer than the prothorax, gradually narrowing from about

PYROPHORUS. AT]

the basal third in both sexes; finely or somewhat coarsely punctate-striate, the interstices flat or feebly

convex, and densely, rugulosely punctate; the apices conjointly rounded, with the sutural angles sharp or

very feebly mucronate. Beneath closely and finely, the prosternum coarsely and sparsely, punctate ;

mesosternum with the sides of the cavity feebly raised.

Length 163-23, breadth 5-62 millim. (d 2.)

Hab. Mexico, Vera Cruz, Cosamaloapam, Chiapas (Sal/é), Temax in North Yucatan

(Gaumer).

Fifteen examples, eight of which are from Yucatan; some of those in the Salle and

Janson collections were mixed with the series of P. ornamentum and P. stella. From

P. stella and its allies it may be recognized by the form of the thoracic tubercle; and

from P. ornamentum by the laterally compressed thoracic tubercle being considerably

smaller, the antenne more elongate and less dilated, and the genitalia very differently

formed, in the males. The females are not easy to separate. P. mexicanus also differs

from typical P. ornamentum in the smaller and less prominent thoracic vesicles.

P. physoderus is another closely allied form, but that insect has much shorter and

stouter antenne in the males, and a small subconical tubercle at the base of the

thorax; the genitalia of the males, however, are very similar.

13. Pyrophorus physoderus. (Tab. XX. fig. 30, genitalia, ¢ .)

Pyrophorus physoderus, Germ. Zeitschr. fiir Ent. iii. p.36'; Lec. Trans. Am. Phil. Soc. new ser. x.

p- 4927; Cand. Monogr. Elat. iv. p. 33°.

Hab. Norra America, Southern United States?, Alabama?!, Louisiana’, ‘Texas.—

Mexico 8, Monclova in Coahuila (Dr. Palmer).

Two males from Coahuila and a female labelled “ Mexico” in the Janson collection

are all I have seen of this species from within our limits. In this insect the antenne

extend very little beyond the hind angles of the thorax in the males, and are still

shorter in the females, and the thorax in the females is very convex. The thorax has a

small tubercle in the middle at the base. PP. physoderus is the only species of the

genus extending north of our boundary.

14. Pyrophorus stella. (Tab. XX. figg. 52, genitalia, ¢; 32, base of

abdomen.)

Pyrophorus stella, Cand. Monogr. Elat. iv. p. 32, t. 1. fig. 7°.

Pyrophorus caliginosus, Sturm, Cat. p. 67 (1843) *.

Hab. Mexico}? (Sallé, ex coll. Sturm), Tuxtla (Sadlé), Misantla, Jalapa (Hoge), Sin

Francisco in Vera Cruz (ex Wickham).

‘Two species appear to have been confused under this name by Dr. Candéze—one

with the antenne extending a little beyond the hind angles of the thorax in the male,

the other with the antenne considerably more elongate in this sex. The first-mentioned

answers to his description; the second is described below under the name radians.

472 SERRICORNIA.

The thorax in P. stella has a small, prominent, transversely compressed tubercle in the

middle at the base. The genitalia of the males differ in form from those of the allied

species. P. stella, so far as at present known, is confined to the State of Vera Cruz.

It has been sent in numbers from Misantla by Herr Hoge.

15. Pyrophorus radians. (Tab. XX. figg. 31,4; 31a, genitalia, ¢; 314, base

of abdomen.) |

Elongate, rather narrow, the females broader, moderately convex, shining, fusco-cinereo-pubescent ; piceous,

pitchy-brown, or rufo-castaneous, the elytra usually castaneous or rufo-castaneous, and paler than the

head and prothorax; the prothorax with a moderately large, ovate, oblique yellow vesicle on either side

behind, this being placed near the lateral margin and somewhat distant from the base; the propleure

with a large yellow patch behind; the legs and antenne brown or ferruginous. Head thickly, coarsely

punctate, broadly depressed in the middle in front, the eyes large and rather prominent ; antenne stout

and strongly serrate, extending considerably beyond the hind angles of the prothorax in the male, scarcely

reaching these angles in the female, the third joint a good deal longer than the second. Prothorax as long

as broad, feebly convex, flattened or depressed on either side of the middle of the disc; the sides converging

in front and moderately rounded in both sexes, straight or feebly sinuate for some distance before the

middle; the hind angles long and rather narrow, strongly divergent, carinate; the surface densely and

moderately coarsely punctured at the sides, sparsely so on the disc, down the centre of which is a smooth

median line, this being impressed towards the base in some specimens ; the base with a small, prominent,

transversely compressed tubercle close to the margin in the centre. Elytra about two and two-thirds

longer than the prothorax, somewhat rapidly narrowing from a little below the base in the male, less

attenuate and slightly more rounded at the sides in the female; finely punctate-striate, the interstices

flat and densely, rugulosely punctate; the apices slightly dehiscent, with the sutural angle acute or finely

mucronate. Beneath thickly, finely punctate, the prosternum with widely scattered coarse punctures ;

prosternal process long and horizontal, on the same plane as the prosternum; mesosternum with the sides

of the cavity considerably raised behind.

Length 15-27, breadth 43-73 millim,. (¢ 9.)

Hab. Mexico, Oaxaca, Teapa (Sallé), Atoyac in Vera Cruz (H. H. Smith); GuaTEMALA,

Panzos, Chacoj, Panima, Purula, and San Juan in Vera Paz (Champion).

Var. a. Pitchy-black or piceous; the prothorax with a curved rufous stripe on either side extending from

about the middle to the base and surrounding the yellow vesicle; the yellow patch on the propleure in

two specimens extending forwards to near the apex. (d Q.)

Hab. GuateMaa, Senahu, San Juan, and Purula in Vera Paz (Champion).

Var. §. The elytra rather coarsely punctate-striate, with the interstices feebly convex. (¢.)

Hab. Nicaracua, Chontales (Belt, E. M. Janson).

Var. y. The sutural angles of the elytra produced into a long, fine mucro. (¢ @.)

Hab. Nicaracua, Chontales (Janson); Costa Rica (Van Patten); Panama, Bugaba

(Champion).

The typical form of this species is common in the Polochic Valley in Guatemala,

and it extends northwards into Southern Mexico, whence a good series has been

received from Mr. H. H. Smith. Of the variety « four specimens were found by

myself in Vera Paz; the variety 8 is represented by seven males from Nicaragua, some

of which are very small; and the.variety y by three specimens, one from each locality

PYROPHORUS. 473

quoted. In the form of the tubercle at the base of the thorax, the protuberant meso-

sternum, &c., P. radians agrees with P. stella, but it may be separated from that species

by the more divergent hind angles of the thorax; the males, moreover, have the antenne

considerably more elongate, the elytra narrowing from a little below the base (instead

of from slightly before the middle, as in P. stella), and the genitalia very differently

formed. In this last-mentioned character the males of each of the varieties agree

perfectly with the type. The var. y is connected by intermediate forms, and the

var. % inhabits the same region as the type. The luminous portion of the base of

the abdomen is limited to a narrow space immediately beneath the intercoxal process.

P. radians also resembles the South-American P. pyrophanus, Illig.; but it has the

apices of the elytra less dehiscent, the prosternum more sparsely punctured, and the

genitalia of the male very differently formed. A male from Panima is figured.

16. Pyrophorus restinctus. (Tab. XX. figg. 33,3; 334, genitalia, ¢ .)

Moderately elongate, narrow, feebly convex, shining; rufo-testaceous or testaceous, the eyes, the eight outer

joints of the antenne, a broad median vitta on the prothorax, not quite reaching the base or apex and

slightly narrowing in front, the scutellum, and the sides of the elytra from before the middle to the apex,

broadly, black, the black on the elytra gradually extending inwards and reaching the suture some distance

before the apex, the abdomen, and usually the sides of the metasternum also, partly piceous; above and

beneath somewhat thickly pubescent, the pubescence on the dark portions of the elytra fuscous, fulvo-

cinereous elsewhere. Head thickly, rather coarsely punctate, triangularly depressed in front, the eyes

moderately large; antenne short, not reaching the hind angles of the prothorax, moderately stout, serrate,

the third joint slightly longer than the second. Prothorax a little longer than broad, very gradually

narrowing from the base forwards, the sides feebly sinuate before and behind the middle and slightly

rounded in front, the disc broadly depressed on either side before the middle; the hind angles moderately

long, rather stout, divergent, distinctly incurved at the tip, finely carinate; the surface closely and

moderately finely punctured, the punctuation becoming coarser at the sides, and usually with indications

of a faint smooth median line. Scutellum densely punctured. Elytra about two and three-fourths longer

than the prothorax, rapidly narrowing from the basal third; finely punctate-striate, the interstices feebly

convex and thickly punctured; the apices narrow, slightly dehiscent, and submucronate. Beneath finely

and closely, the prosternum sparsely and coarsely, punctate; mesosternum depressed, a little raised

behind, the metasternum slightly produced and convex between the middle coxe.

Var. The pubescence on the upper surface uniformly {ulvo-cinereous.

Length 13-14, breadth 33-4 millim. (¢.)

Hab. Nicaracva, Chontales (Belt, #. M. Janson).

Four specimens—three of the typical form, with the pubescence of the upper surface

partly abraded, and one of the variety. This insect somewhat resembles P. formosus,

Germ., from Brazil, but it is less elongate, more closely punctured, and more thickly

pubescent, the elytra are acute at the apex and differently coloured, the antenne are

shorter, &c. P. restinctus agrees with Alampes melanoxanthus and A. vestitus in the

form of the genitalia of the males, but it differs from them in the declivous meso-

sternum and the shorter intercoxal process of the metasternum.

BIOL. CENTR.-AMER. Coleopt., Vol. ILI. Pt. 1, March 1896. 3P

474 SERRICORNIA.

ALAMPES.

Prothorax without luminous vesicles; mesosternum raised behind, the sides of the cavity vertical; meta-

sternum strongly produced in front and convex between the middle coxe ; tarsi simple; the other

characters as in Pyrophorus.

This genus is proposed to include Pyrophorus abnormis and P. melanoxranthus, Cand.,

and the new species described below. ‘These insects have the intercoxal portion of the

metasternum considerably produced in front, the mesosternum being thus forced into a

vertical position, as in the genera Spilus and Spilomorphus of the group Dicrepidiini,

and Probothrium of the group Ludiini. From Photophorus, which has the mesosternum

still more protuberant behind, it differs in the simple tarsi.

Elytra with a black submarginal stripe extending from the shoulder to the apex ;

antennz in the male extending to the hind angles of the prothorax, the basal

joint at most partly testaceous; scutellum cinereo-pubescent . . . . . melanowxanthus.

Elytra usually with a narrow oblique darker stripe about the middle; antenne

in the male shorter, the three basal joints testaceous ; scutellum blackish-

brown-pubescent . . . 1 ee ee ee ee ew ew ee ww VOSS.

1. Alampes melanoxanthus. (Tab. XXI. figg. 1,3; la, genitalia, ¢ .)

Pyrophorus melanoxanthus, Cand. Elat. Nouv. i. p. 51 (1864)'; Steinh. Col. Hefte, xiv. p. 133°.

Hab. Panama, Bugaba (Champion).—CoLoMBIA’; VENEZUELA?.

One male example from Chiriqui, agreeing with others from Colombia and Venezuela

in the Janson collection. This insect is of a rufo-testaceous or testaceous colour, with

the base of the head, a large oblong-oval patch on the disc of the thorax, the scutellum,

and a submarginal vitta on each elytron extending from the shoulder to the apex, black.

The antenne are short, scarcely extending beyond the hind angles of the thorax in the

male, stout and strongly serrate, black, the basal joint partly testaceous; the third

joint is slightly longer than the fourth. The scutellum is densely punctured. The

legs are testaceous or fusco-testaceous, with the tibiae more or less piceous. The

pubescence is dense.

2. Alampes vestitus, (Tab. XXI. figg. 3,9; 34, genitalia, g).

Elongate, rather narrow, moderately convex, shining; piceous or obscure castaneous, paler beneath, the elytra

rufo-castaneous or rufo-testaceous, each with a long oblique stripe extending from some little distance

below the shoulder to the suture (the two forming a common V-shaped mark); the antenne piceous,

with the three basal joints rufo-testaceous; the legs fusco-testaceous, the tibie usually darker; the

upper surface densely clothed with rather coarse fulvo-cinereous pubescence, the scutellum blackish-

brown-pubescent, the oblique elytral stripe fusco-pubescent, the under surface cinereo-pubescent. Head

closely, coarsely punctate, broadly depressed in front, the eyes moderately large; antennz short, not

nearly reaching the hind angles of the prothorax in the male, still shorter in the female, rather stout

and strongly serrate, the third joint a little longer than the second. Prothorax longer than broad, very

gradually narrowing from the base, the sides slightly rounded in front in the male, a little more rounded

in the female, somewhat flattened laterally ; the hind angles long, stout, and moderately divergent,

distinctly carinate; the surface closely, rather finely punctate, the punctuation becoming coarser and

ALAMPES.—ISCHIUS. ATS

denser at the sides. Scutellum densely punctured. Elytra about two and four-fifths longer than the

prothorax, rapidly narrowing from a little below the base in both sexes; finely and rather deeply punctate-

striate, the interstices feebly convex and densely, rugulosely punctate ; the apices narrow, slightly dehiscent,

and submucronate. Beneath closely and finely, the prosternum coarsely and sparsely, punctured.

Var. The oblique stripe on each elytron obliterated.

Length 14-173, breadth 32-43 millim. (¢ 9.)

Hab. Nicaragua, Chontales (Belt); Payams, Bugaba (Champion).

Seven specimens, both forms occurring in each locality. Closely allied to A. abnormis

(Cand.), from Colombia, the type (¢ ) of which is before me, but easily separable from

it by the blackish-brown pubescence on the scutellum. The variety closely resembles

that insect. As in A. abnormis, the pubescence is coarse and dense, and almost hides

the sculpture. The genitalia of the males are similarly formed.

ISCHIUS.

Ischius, Candéze, Monogr. Elat. i. p. 195 (1857) ; Elat. Nouv. 11. p. 42; Cat. Méthod. Elat. p. 163.

The two described species of this genus are from Tropical South America—one from

Guiana and one from Ecuador; a third from our region is now added. Jschius is

closely related to Pyrophorus, a position subsequently assigned to it by Candéze.

1. Ischius haagi. (Tab. XXI. fig. 5.)

Ischius haagi, Cand. in litt.

Moderately elongate, broad, robust, slightly shining, black; the prothorax flavo-testaceous, with a very large

subcruciform black patch, extending to near the lateral margins, base, and apex, and bordered on all sides

with reddish-brown, the tubercle at the base, and the tips of the hind angles also in one specimen, reddish-

brown; the propleure entirely flavo-testaceous; above and beneath thickly and very finely pubescent, the

pubescence on the front and base of the head, the sutural and lateral margins of the elytra, and the dark

portions of the under surface cinereous, fuscous on the rest of the elytra and on the prothoracic patch, and

flavous on the other parts of the prothorax. Head densely, moderately finely punctate, broadly,

triangularly depressed in front; antenne short, not reaching the hind angles of the prothorax, strongly

dilated and serrate from the fourth joint, the third joint small, slightly longer than the second. Prothorax

a little longer than broad, rounded at the sides, widest at the middle, and distinctly narrowed behind; the

hind angles moderately long, stout, divergent, and carinate; the surface densely, finely, uniformly punc-

tate, with an incomplete, smooth, slightly raised median line; the base with a prominent, abruptly raised

rounded tubercle in the centre. lytra two or two and one-fifth times the length of the prothorax,

somewhat rounded at the sides, and narrowing from a little below the base; finely punctate-striate, the

strie deeply impressed at the base, the interstices flat or very feebly convex and densely, minutely

punctate; the apices conjointly rounded, slightly divaricate at the suture. Beneath closely and finely,

the prosternum sparsely and coarsely, punctate.

Length 16-22, breadth 43-6? millim.

Hab. Mexico (coll. Janson) ; GuaTEMALA, Coban (Champion).

Two specimens, differing greatly in size, probably male and female. Apart from the

very dissimilar coloration, this species may be at once separated from the Scuth-

American forms by the small third joint of the antenne. The specimen in the Janson

collection is labelled “J. haagi, Cand., type,” but I am unable to find any published

description of it.

3P 2

476 SERRICORNIA.

Group CORYMBITINI.

CORYMBITES.

Ludius, Eschscholtz, in Thon’s Archiv, ii. 1, p. 84 (1829) (nec Latreille).

Corymbites, Latreille, Ann. Soc. Ent. Fr. 1834, p. 150; Leconte, Trans. Am. Phil. Soc. new ser.

x. p. 435; Candeéze, Monogr. Elat. iv. p. 77.

A single species from Yucatan is somewhat doubtfully referred to this well-known

genus, which contains a very large number of representatives in the Palearctic and

Nearctic Regions. It is unnecessary to give here the extensive synonymy, or to enter

into the argument as to whether the name Ludius or Corymbites should be adopted

for it *,

1. Corymbites pilatei. (Tab. XXI. fig. 2.)

Comparatively short, rather narrow, moderately shining; reddish-brown, rufo-ferruginous beneath, the legs

and antenne testaceous; above and beneath somewhat thickly clothed with very fine, short, fulvous

pubescence. Head thickly, finely punctate, triangularly depressed in front; antenne short, scarcely

reaching the hind angles of the prothorax, joints 2 and 3 short, exactly equal in length, the following

joints wider and feebly serrate, 4 about twice as long as 3. Prothorax as broad as long, the sides a little

rounded and gradually converging anteriorly and feebly sinuate behind; the hind angles long and acute,

slightly divergent, sharply carinate, the carina extending for some distance forwards ; the surface densely,

finely punctate, obsoletely canaliculate along the middle. Elytra two and one-half times the length of

the prothorax, and of about the same width, gradually narrowing from the middle, and rounded at the

apex ; finely punctate-striate, the interstices slightly convex at the sides, flat on the disc, and thickly

punctured. Beneath finely and somewhat closely punctate. Posterior coxal plates becoming very narrow

outwards, moderately widened inwards.

Length 8, breadth 24 millim.

Hab. Mexico, Yucatan (coll. Janson).

One specimen, no doubt a female, in the Janson collection, labelled with the MS.

name Oophorus castaneus, Pilate. This insect somewhat resembles the North-American

C. divaricatus, Lec., but differs from it in the short third joint of the antenne, &c.

C. pilatet belongs to Sect. 1V. of Dr. Candéze’s ‘Catalogue Méthodique.’ ‘The insect

is unknown to him. It is not impossible that there is some mistake as to the locality.

Group DIMINI.

ANTHRACOPTERYX.

Anthracopteryx, Horn, Trans. Am. Ent. Soe. xviii. p. 30, t. 1. fig. 7 (max. palpus) (1891).

1. Anthracopteryx mexicanus. (Tab. XXI. fig. 4, 3.)

Elongate, rather broad, flattened above, shining; black, the elytra brownish-black, the metasternum and

abdomen pitchy-brown, the antenne and legs brownish; the upper surface very sparsely clothed with

long, fine, semierect, fuscous hairs, the under surface sparsely and finely pubescent. Head rather sparsely,

* Of. Buysson, Faune Gallo-Rhénane, Elat. p. 73 (1894).

ANTHRACOPTERYX.—HEMICREPIDIUS. ATT

somewhat cvarsely punctate, broadly depressed in front; antenne not reaching the hind angles of the

prothorax, feebly serrate, the joints much longer than broad, 3 a little longer than 4 and very much

longer than 2. Prothorax considerably longer than broad, widest before the middle, rather sharply

margined ; the sides moderately rounded, converging from about the middle towards the base and sinuate

behind, and also converging in front; the hind angles greatly produced, rather stout, divergent, strongly

recurved, sharp at the tip, and not carinate; the surface sparsely, somewhat coarsely punctate, canaliculate

behind. Scutellum large, convex, transverse, thickly punctured. Elytra elongate-oboval, about two and

one-third times longer than the prothorax, and much narrower than it at the base, a little rounded at the

sides, widening to slightly beyond the middle and gradually narrowing thence to the apex; the humeri

oblique; finely and rather deeply punctate-striate, the interstices moderately convex and very distinctly

punctured. Beneath sparsely punctate. Posterior coxal plates abruptly and very broadly widened in

their inner third, very narrow outwards,

Length 10, breadth 3} millim. (¢.)

Hab. Mexico, Oaxaca (Sal/é).

One specimen only of this remarkable Elaterid has been received. It agrees perfectly

in its essential characters with the type of the genus, A. hiemalis, Horn, from the

mountains of Colorado and Wyoming. ‘The flattened, elongate-oboval elytra, the

elongate thorax, with long and recurved hind angles, much larger size, &c., distinguish

it from that insect. Following Dr. Candéze’s system of classification, the genus

Anthracopteryx must be referred to the group Dimini.

Group HEMICREPIDIINI.

HEMICREPIDIUS.

Pedetes, Kirby, Faun. Bor.-Amer. iv. p. 145 (1887) (nec Illiger, 1811).

Asaphes, Kirby, loc. cit. p. 146 (nec Walker, 1835) ; Leconte, Trans. Am. Phil. Soc. new ser. x.

p- 449; Candéze, Monogr. Elat. iv. p. 207; Cat. Méthod. Elat. p. 181; Horn, Trans. Am.

Ent. Soc. viii. p. 69 (1880).

Hemicrepidius, Germar, Zeitschr. fiir Ent. i. p. 212 (1839).

This genus is well represented in our region, as well as in America north of Mexico.

The Central-American species, A. carbonatus excepted, differ from the typical North-

American forms in having’the second and third tarsal joints narrower, somewhat

compressed, and not lamellate. The fourth tarsal joint in all of them is small and

very slender. ‘The two described South-American species probably do not really

belong to the same genus: one of these, H. longipennis (Cand.), from Colombia, has

the third tarsal joint only dilated; the other, H. amenus (Philippi), from Chili, is

unknown to me. ‘The numerous species are extremely closely allied, and some of

them are very variable in colour, or differ in this respect in the two sexes, this being

the case in H. liformis, H. flavipes, H. parvulus, and H. patruelis. H. instabilis and

Hi. longicollis are also very variable in colour, especially in the female sex. Of

Hi. biformis we have fortunately received a pair én copuld, thus proving the identifi-

cation of the sexes.

These insects are chiefly found upon herbage or flowering shrubs, and are sometimes

478 | SERRICOR NIA.

met with in abundance. The name Asaphes, adopted by Leconte and Candéze, is pre-

occupied in Hymenoptera.

a. Second and third tarsal joints rather stout and sublamellate, the fourth small ;

frontal margin slightly raised above the anterior margin of the head; pro-

thorax with very distinct basal incisures, the hind angles carinate; body entirely

black: sizelarge . 2 1 ek ee ee ee ee ee ee ee Carbonatus.

b. Second and third tarsal joints more slender and somewhat compressed, not

lamellate ; prothorax (except in H. pictipes) without distinct basal incisures :

size moderate or small.

a’. Frontal margin slightly raised above the anterior margin of the head; hind

angles of the prothorax not carinate ; oly entirely black, sparsely

pubescent . . . . . . toe ew ew we terrimus.

b'. Brontal margin confluent with the anterior margin of the head.

' Hind angles of the prothorax distinctly carinate.

7 Pubescence sparse and fine; elytra subtruncate at the apex.

a‘, Colour rufo-castaneous, the prothorax with two black vitte, the hind

angles of the latter greatly produced. . . «. . . . . « . (Owwitlatus.

b*. Colour varying from black to reddish-brown; hind angles of the

prothorax moderately produced . . . . . 2 . . « instadbilis.

6'", Pubescence closer and coarser, in some specimens forming light and

dark stripes on the prothorax, the hind angles of the latter moderately

long; elytra obliquely truncate at the apex, the sutural angles sharp ;

colour variable, usually reddish-brown inthe 9 . . . . . . . ~ Jongicoliis.

6". Hind angles of the prothorax not or obsoletely carinate ; colour in some

of the species variable, or differing sexually (H. patruelis and H. parvulus

as regards the prothorax*, and H. jlavipes and H. amitinus as regards

the elytra t).

c"" Pubescence sparse and fine.

*, Apices of the elytra more or less acuminate.

- Prothorax elongate, the hind angles greatly produced . . . . . acuminatus.

6°. Prothorax shorter, the hind angles moderately produced . . ‘ consobrinus,

germanus.

d’, Apices of the elytra more or less truncate or rounded.

c’. Antenne moderately long in the ¢.

a*. Hind angles of the prothorax greatly produced and strongly consanguineus,

di patruelis,

Ivergent 2. . 2. .« « «© «© «©

parvulus.

6°. Hind angles of the prothorax moderately produced and _ less : flavipes,

amitinus

divergent . . ... ?

candezei.

* Prothorax ferruginous, with a black median vitta or oval patch in the @.

t Elytra ferruginous or obscure testaceous in the 9.

HEMICREPIDIUS. 479

d’. Antennze more slender and more elongate in the male.

ce’. Hind angles of the prothorax greatly produced and strongly

divergent 2. 6 6 6 1 ee ee we ee ee longicornis.

d°’, Hind angles of the prothorax moderately produced and much

less divergent. . 2. 6 © © © 6 © © © ee © 8 8 nitidus.

d', Pubescence closer and coarser.

e'. Prothorax rufous, with a black median vitta, which is sometimes

divided or constricted at the centre, and with two large patches of

coarse pallid pubescence on either side, leaving a large cruciform

space more finely pubescent, the hind angles greatly produced and

divergent; elytra black . 2. 6. 6 1 6 6 ee ew ee es cruciatus.

f'. Prothorax with a large cruciform black patch (except in H. biformis,

@), for the rest ferruginous or rufous (the sides partly flavous in

H. pictipes) ; the pubescence uniform and partaking or not of the

ground-colour.

e®, Hind angles of the prothorax greatly produced and strongly

divergent, the base with a distinct incisure on either side ; elytra

very rugose; body similarly coloured in the two sexes . . . . pictipes.

f’. Hind angles of the prothorax moderately produced and much less

divergent, the base without distinct incisures; elytra smoother ;

body dissimilarly coloured in the two sexes. . . . . « © « béformis.

1. Hemicrepidius carbonatus.

Asaphes carbonatus, Lec. Proc. Acad. Phil. 1860, p. 820°; Cand. Monogr. Elat. iv. p. 214, t. 3.

fig. 2°; Horn, Trans. Am. Ent. Soe. viii. p. 71°.

@. Asaphes coracinus, Cand. loc. cit.*

Hab. Norru America, Hudson’s Bay ?, Oregon!*, Nebraska ®, California **.—MExico,

Ciudad in Durango 8100 feet (Forrer, Hoge).

Four specimens. ‘his is the only one of our species with the second and third

tarsal joints distinctly lamellate. The insect is very like H. hirtus (Cand.), from

California, but is clothed with shorter hairs.

2. Hemicrepidius aterrimus.

Elongate, very narrow, moderately shining, deep black, sparsely and finely pubescent, the pubescence blackish

above and cinereous beneath. Head thickly punctured, transversely depressed in front ; the front limited

on either side anteriorly by an oblique ridge, which extends downwards and meets the opposite one in the

centre slightly above the anterior margin of the head ; antenne moderately elongate, extending fully two

joints beyond the hind angles of the prothorax, joint 3 a little longer than 2, Prothorax much longer

than broad, slightly narrowing from the middle forwards, and feebly sinuate at the sides behind; the

hind angles moderately produced, divergent, not carinate; the surface closely and finely punctate.

Scutellum thickly punctured, and with indications of a smooth median line. Elytra two and three-fourths

longer than the prothorax, and much wider than it, subparallel to the middle and gradually narrowing

beyond, subtruncate at the apex ; deeply punctate-striate, the interstices slightly convex and transversely

480 SERRICORNIA.

rugose. Beneath thickly punctured. Tarsi with the second and third joints rather slender and

compressed, the fourth small.

Length 8, breadth 2 millim. (<.)

Hab. Mexico, Ciudad in Durango 8100 feet (forrer).

One male example. In this insect the second and third joints of the tarsi are very

little stouter than the fourth, and the front in the centre is slightly raised above the

anterior margin of the head; the last-mentioned character is common to various North-

American members of the genus, and the form of the tarsi is very similar to that of

most of the Central-American species. It approaches Limonius in some respects, bat

seems better placed here.

3. Hemicrepidius bivittatus. (Tab. XXI. fig. 6, 2.)

Elongate, rather narrow, shining ; rufo-castaneous, the head (the sides of the front excepted), antenna, and

scutellum, two vitte on the prothorax—not reaching the apex, narrowing posteriorly, and confluent in

front and behind,—the prosternum (except in front), and the sides of the metasternum, black, the femora

infuscate ; finely and very sparsely pubescent, the pubescence fusco-cinereous above and cinereous beneath.

Head very sparsely punctate, depressed in front ; antenna scarcely reaching the hind angles of the pro-

thorax, joint 3 considerably longer than 2. Prothorax very much longer than broad, gradually narrowing

from the middle forwards and sinuate at the sides behind; the hind angles greatly produced, narrow, and

strongly divergent, carinate; the surface finely and somewhat sparsely punctate, canaliculate behind.

Scutellum rather convex, almost smooth. Elytra two and one-half times the length of the prothorax, and

very much wider than it, narrowing from about the basal third, truncate at the apex ; punctate-striate,

the striz fine, the interstices rather convex and very sparsely punctured. Beneath very sparsely and

finely, the prosternum more coarsely and more closely, punctate.

Length 11, breadth 23 millim. (@.)

Hab. Costa Rica, Volcan de Irazu 6000 feet (Rogers).

One female example. This insect is not closely allied to any of the other species of

the genus. The thorax is very elongate and much narrower than the elytra, with

greatly produced, narrow, carinate hind angles. The body is very sparsely and finely

pubescent, and rufo-castaneous in colour, with the head and two vitte on the thorax

black.

4. Hemicrepidius instabilis. (Tab. XXI. figg. 7, 3, var.; 8, var. leuco-

stigma, ° .)

Asaphes instabilis, Cand. Monogr. Elat. iv. p. 218".

2. Asaphes leucostiyma, Cand. loc. cit. p. 220°.

Hab. Mexico *?, Puebla, Tuxtla, Cordova (Sallé), Cerro de Plumas, Jalapa (Hoge),

Orizaba (coll. Janson), Fortin in Vera Cruz (H. H. Smith) ; Guatemata (Sallé), Senahu

and Sinanja in Vera Paz (Champion), Coban in Vera Paz (Conradt); Costa Rica,

Volcan de Irazu (Rogers) ; Panama, Volcan de Chiriqui (Champion).

With the long series of specimens before me from the above localities I am unable

to separate H. leucostigma from H. instabilis, the obliteration of the elytral striz in

HEMICREPIDIUS. 481

the former proving to be a variable character. The insect is very variable in colour,

especially in the female sex, the thorax, and sometimes the head also, being often partly

or entirely rufous or rufo-ferruginous. In four of the specimens from Coban, all females,

the elytra are reddish-brown. The legs vary in colour from testaceous to almost black.

The pubescence on the scutellum is whitish or cinereous, and in fresh specimens the

elytra have some whitish hairs at the base in front. The single (female) specimen from

Guatemala in the Sallé collection is broader than usual, with the thorax more densely

punctured, the elytra more rugose, and the pubescence on the upper surface entirely

fulvo-cinereous ; it perhaps belongs to another species. The Costa Rican examples are

narrower and a little more elongate than the others, but they cannot be separated ; in

one of the males the thoracic carine are almost obsolete. ‘The type of H. leucostigma

isafemale. /. instabilis in all its varieties may be known from most of the allied

forms by the elongate thorax, with distinctly carinate hind angles, and the sparsely

pubescent surface. We figure a variety of the male from Cerro de Plumas, and a

female of the variety leucostigma from Sinanja.

5. Hemicrepidius longicollis. (Tab. XXI. fig. 9, ¢.)

g. Asaphes longicollis, Cand. Monogr. Elat. iv. p. 218°.

&. Asaphes deceptor, Cand. loc. cit. p. 219”.

2. Asaphes soricinus, Deyr. in litt.

Hab. Mexico!?, Etla, Yolos, Tepansacualco, Parada, Juquila, Orizaba (Sal/é),

Cordova (Sallé, Hoge), Jalapa (Hoge, M. Trujillo), Chilpancingo (H. H. Smith).

Not uncommon in Mexico. The males of this species are usually black, with the

hind angles of the thorax more or less rufo-ferruginous, and the females reddish-brown

or with the elytra of that colour. The pubescence is rather coarse and close. In

some specimens (as in the type of H. longicollis) the sides of the thorax and a line

down the middle, and the scutellum, are cinereo-pubescent, and there is sometimes an

oblique cinereo-pubescent stripe on each elytron extending from the shoulder downwards,

the rest of the pubescence being fuscous or fusco-cinereous ; in others (#. deceptor *)

the pubescence is uniformly cinereous or yellowish-cinereous. ‘The antenne and legs

vary in colour. The antenne extend to a little beyond the hind angles of the thorax

in the males, slightly shorter in the females. ‘The thorax is much longer than broad,

closely punctured, with the hind angles finely carinate. ‘The elytra are deeply punctate-

striate, with the interstices rather convex and rugosely punctured; the apices are

obliquely truncate, with the sutural angles mucronate. 1. longicollis may be known

from H. instabilis by the closer and coarser pubescence, the shorter and finer carina of

the hind angles of the thorax, and the more obliquely truncate apices of the elytra.

In some of the largest females the punctuation of the thorax is sparser and coarser,

* Dr. Canddze (op. cit.) compares this insect with H. flavipes, evidently in mistake for H. longicollis.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1896. 3Q

482 SERRICORNIA.

and the elytral interstices more convex. The females are separated in the Sallé

collection under the name of Asaphes soricinus.

We figure a typical male from Cordova.

6. Hemicrepidius acuminatus.

Elongate, narrow, shining ; black or pitchy-black, the prothorax with the hind angles usually rufo-ferruginous ;

the elytra sometimes rufo-ferruginous at the base, in one specimen castaneous; the antenne black, the

legs piceous or brown ; the under surface black or piceous, the propleure and abdomen sometimes partly

ferruginous ; above and beneath sparsely and finely pubescent, the pubescence fuscous or fusco-cinereous,

cinereous on the scutellum and under surface. Head thickly, finely punctate, flattened in front; antenne

about reaching the hind angles of the prothorax in the female, longer in the male, joint 3 a little longer

than 2. Prothorax much longer than broad, very gradually narrowing from the middle forwards and

slightly sinuate at the sides behind; the hind angles elongate and strongly divergent, not carinate; the

surface somewhat sparsely, finely punctate and usually canaliculate behind. Scutellum feebly convex in

front, Elytra about two and one-half times longer than the prothorax, and wider than it, narrowing

from the middle, the apices acuminate and dehiscent; rather coarsely punctate-striate, the interstices

more or less convex and sparsely punctured. Beneath sparsely punctate.

Length 73-93, breadth 2-23 millim. (¢ 9.)

Hab. Mexico, Playa Vicente and Oaxaca (fHége).

Five specimens. ‘This species may be chiefly distinguished amongst its allies by the

elongate, sparsely. punctured thorax, the hind angles of which are long and non-carinate,

the sparse pubescence, and the acuminate and dehiscent apices of the elytra. The

pubescence on the scutellum is whitish. In one of the two specimens from Playa

Vicente the elytra are castaneous. In the elongate thorax and sparse pubescence the

present species approaches H. patruelis, H. instabilis, &c.

7. Hemicrepidius consobrinus. (Tab. XXI. fig. 10, 2.)

Moderately elongate, narrow, shining; black or piceous, the hind angles of the prothorax, the extreme base of

the elytra, and the margins of the propleure rufo-ferruginous, the front of the head, the anterior angles

and lateral margins of the prothorax, the elytral epipleure, the basal joint of the antenne, and the greater

part of the under surface also rufo-ferruginous in the female, the elytra testaceous-brown in this sex in

one specimen ; the legs pitchy-brown in the male, testaceous in the female; above and beneath sparsely

and finely pubescent, the pubescence on the upper surface yellowish- or fusco-cinereous, cinereous beneath.

Head thickly punctured, depressed in front ; antennz about reaching the hind angles of the prothorax in

the male, shorter in the female, joint 3 slightly longer than 2. Prothorax very little longer than broad,

the sides sinuate behind and gradually converging anteriorly ; the hind angles acute and feebly divergent,

not carinate; the surface thickly, finely punctate, obsoletely canaliculate behind. Scutellum convex in front,

thickly punctured, and with indications of a smooth median line. Elytra two and two-thirds longer than

the prothorax, narrowing from a little below the base, slightly dehiscent and subacuminate at the apex;

deeply punctate-striate, the interstices rather convex and sparsely, somewhat rugosely punctate. Beneath

sparsely punctured.

Length 6-64, breadth 13-17 millim. (¢ 9.)

Hab. GuatemaLa, Senahu in Vera Paz (Champion).

Three examples. In the slightly dehiscent and acuminate apices of the elytra this

small species approaches H. acuminatus, from which it differs in having the thorax

HEMICREPIDIUS. 483

much less elongate, with shorter and less divergent hind angles. ‘The thorax is very

little longer than broad. From JH. candezei it may be known by the less parallel

thorax and the more acuminate apices of the elytra.

8. Hemicrepidius germanus.

Elongate, rather broad, shining; black, with the tips of the hind angles of the prothorax and the sides of the

abdomen ferruginous, or with the anterior, basal, and apical borders of the prothorax, the propleure, and

abdomen ferruginous and the elytra reddish-brown; the antenne piceous or black, the legs obscure

testaceous; above and beneath sparsely clothed with rather long yellowish-cinereous hairs. Head

unequally, somewhat sparsely punctate, flattened in front; antenne about reaching the hind angles of

the prothorax, joint 3 a little longer than 2. Prothorax slightly longer than wide, the sides gradually

converging from the middle forwards and feebly sinuate behind; the hind angles moderately produced,

slightly divergent, and not carinate; the surface sparsely, finely punctate, canaliculate behind. Scutellum

convex in front, closely punctured. Elytra about two and two-thirds longer than the prothorax, and

slightly wider than it, narrowing from the middle, the apices rather sharp; deeply punctate-striate, the

interstices convex and sparsely punctured. Beneath sparsely punctate.

Length 82-10, breadth 24-27 millim. (9.)

Hab. GUATEMALA, Capetillo (Champion), Chimaltenango (Conradt).

Two females, differing greatly in colour. These specimens cannot be satisfactorily

placed with any of the other species here enumerated. The thorax is very little longer

than broad, sparsely punctured, and with feebly divergent non-carinate hind angles.

H. germanus is perhaps nearest allied to H. consanguineus, but it is very much larger

and more elongate. The punctuation of the thorax is unusually sparse. No male

Hemicrepidius has been received from the central plateau or the Pacific slope of

Guatemala where these females were found.

9. Hemicrepidius consanguineus.

Moderately elongate, narrow, shining ; black or pitchy-black, the hind angles of the prothorax ferruginous, the

legs and antenne pitchy-black or brown; above and beneath sparsely and finely pubescent, the pubescence

fuscous on the elytra, yellowish-cinereous on the head and prothorax, and cinereous beneath. Head

thickly punctured, flattened in front; antenne rather stout, extending to about two joints beyond the

hind angles of the prothorax, joint 3 slightly longer than 2. Prothorax a little longer than broad,

subparallel, the sides rounded in front and feebly sinuate behind; the hind angles long and narrow,

strongly divergent, not carinate; the surface thickly, moderately finely punctate. Scutellum rather

convex in front, thickly punctured. Elytra nearly three times the length of the prothorax, and wider

than it, narrowing from about the basal third, subtruncate at the apex, the sutural angles submucronate ;

deeply punctate-striate, the interstices convex and rugosely punctured. Beneath sparsely punctate.

Length 64-71, breadth 2 millim. (¢.)

Hab. Costa Rica, Volcan de Irazu 6000-7000 feet (Rogers).

Var.? The prothorax entirely black, the hind angles obsoletely carinate ; the elytra testaceous-brown, the

interstices sparsely punctate.

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

Three male examples—two from Costa Rica and one from Chiriqui. Very near

3Q 2

484 SERRICORNIA.

II. longicornis, and perhaps an extreme form of that species, but differing from it in

its less elongate shape, the shorter and stouter antenne in the male, and the less

parallel thorax in this sex. From 4. candezei it may be separated by the long and

strongly divergent hind angles of the thorax; from H. parvulus by the much larger

size and the more parallel thorax ; and from H. amitinus by the less elongate thorax,

with more produced hind angles.

10. Hemicrepidius patruelis. (Tab. XXI. fig. 11, ¢.)

Elongate, narrow, slightly shining ; black or pitchy-black, the hind angles of the prothorax in the male obscure

ferruginous; the prothorax in the female rufo-testaceous, with an oval black patch on the disc, extending

to the base but not to the apex and with a reddish line or mark in the centre; the antenne black, the

legs fusco-testaceous or piceous; the under surface piceous, the epipleure, the propleure behind in the

male, and the abdomen in part obscure ferruginous, the prosternum in front and the propleurz entirely

rufo-testaceous in the female; above and beneath rather sparsely pubescent, the pubescence fuscous or

fusco-cinereous, paler on the head and under surface and on the lateral portions of the prothorax. Head

thickly, finely punctate, depressed in the middle between the eyes; antenne about reaching the hind

angles of the prothorax in the female, longer in the male, joint 3 a little longer than 2. Prothorax much

longer than broad, very gradually narrowing from the middle forwards and slightly sinuate at the sides

behind ; the hind angles long and divergent, not or very obsoletely (2 ) carinate; the surface closely and

finely punctate and also canaliculate. Scutellum rather convex, and with indications of a smooth raised

median line. Elytra wider than the prothorax, and about three times its length, gradually narrowing

from the middle, the apices truncate, the sutural angles finely mucronate ; deeply punctate-striate, the

interstices convex and strongly transversely rugose, granulate on the basal declivity. Beneath sparsely,

finely punctate.

Length 87-93, breadth 21-22 millim. (<¢ @.)

Hab. Mexico, Oaxaca (Hége).

Three examples. Allied to H. longicollis, but differing from it in the very rugose

elytral interstices, the relatively narrower thorax, the hind angles of which are not or

very obsoletely carinate, the finer pubescence, &c. ‘The sexes differ in the colour of

the thorax.

11. Hemicrepidius parvulus. (Tab. XXI. fig. 12,9.)

Elongate, narrow, shining; black, the prothorax with the hind angles ferruginous ( ¢ )—ferruginous, with a

broad, posteriorly narrowed, black median vitta (2), the propleuree and the underside of the basal joint

of the antenne also ferruginous in the female; the legs testaceous, the femora and tarsi sometimes

infuscate ; above and beneath sparsely and finely pubescent, the pubescence on the upper surface fusco-

cinereovs, that on the lower surface cinereous. Head thickly punctured, flattened in front; antenne

extending considerably beyond the hind angles of the prothorax in the male, shorter in the female, joints

2 and 3 short, equal in length. Prothorax a little longer than wide, slightly narrowed in front, the sides

feebly rounded in the female, subparallel in the male, and sinuate behind; the hind angles greatly

produced, strongly divergent, and acute, not carinate; the surface rather sparsely, finely punctate.

Scutellum convex in front, thickly punctured, with indications of a smooth median line. Elytra about

two and three-fourths longer than the prothorax, and wider than it, narrowing from the basal third, the

apices subtruncate ; punctate-striate, the interstices rather convex and rugosely punctured. Beneath

sparsely punctate.

Length 5-54, breadth 14-14 millim. (¢ 2.)

Hab.. GUATEMALA, Purula in Vera Paz (Champion).

HEMICREPIDIUS. 485

Three examples. This small species is closely allied to H. flavipes, from which it

differs in the greatly produced and strongly divergent hind angles of the thorax and the

shorter third joint of the antenne. Asin H. patrwelis, &c., the thorax is differently

coloured in the two sexes.

12. Hemicrepidius flavipes. (Tab. XXI. fig. 13, 2.)

6. Asaphes flavipes, Cand. Monogr. Elat. iv. p. 219°.

Hab. Mexico }, Zacualtipan in Hidalgo (Hoge).

This small species has been found in plenty at Zacualtipan. The type is a male,

with the legs entirely flavous. The female, of which we have received three specimens,

has the anterior and lateral margins and the hind angles, or the anterior and hind

angles, of the thorax testaceous, and the elytra testaceous or fusco-testaceous, with

the suture darker. The male is black or brownish black. The legs vary in colour

from flavous or testaceous to piceous, being usually piceous in the male. The thorax

has the sides Jess parallel and more constricted behind in the female, the hind angles

appearing more divergent; it is much more coarsely punctured in some specimens than

in others. The third joint of the antenne isa little longer than the second. ‘The

scutellum is thickly punctured, convex in front, with indications of a smooth median

line. ‘The elytra are rounded or feebly subtruncate at the apex. Our specimens vary

from 5-6 millim. in length.

13. Hemicrepidius amitinus.

Elongate, rather narrow (¢ ), moderately broad ( @ ), shining; black ( ¢ ),—entirely ferruginous, or ferrugineo-

testaceous, with a transverse patch on the head behind, and the prothorax, except along the basal, lateral,

and apical margins, piceous (?); the legs piceous in the male, testaceous in the female; above and

beneath sparsely and finely pubescent, the pubescence fusco-cinereous above in the male, paler in the

female. Head thickly punctured, flattened in front; antenne extending to a little beyond the hind

angles of the prothorax in the male, slightly shorter in the female, joint 3 distinctly longer than 2.

Prothorax longer than broad, a little narrowed in front, the sides feebly rounded in the female, straighter

in the male, and slightly sinuate behind; the hind angles feebly divergent, not carinate ; the surface

thickly, finely punctate, canaliculate behind. Scutellum rather convex in front, closely punctured, with

indications of a smooth raised median line. Elytra two and three-fourths longer than the prothorax, and

wider than it, narrowing from the basal third, subtruncate at the apex, the sutural angles feebly mucro-

nate; punctate-striate, the interstices flat or feebly convex and rugosely punctured. Beneath sparsely

punctate.

Length 7-83, breadth 2-23 millim. (¢ 9.)

Hab. Mexico, Zacualtipan and Real del Monte in Hidalgo (Hodge).

Four males and two females. Closely allied to H. flavipes, of which it is perhaps

an extreme form, but much larger, more robust, and more elongate, the females

differently coloured (the head being black and the suture infuseate in the corresponding

sex of H. flavipes). From similarly-coloured specimens of H. instabilis the present

species may be known by the less elongate thorax, the hind angles of which are not

carinate, the rather more convex scutellum, &c.

486 SERRICORNIA.

14. Hemicrepidius candezei. (Tab. XXI. fig. 14, ¢.)

Moderately elongate, narrow, shining ; black, the anterior and hind angles of the prothorax, and sometimes

the lateral margins also, rufo-ferruginous, the elytra blackish-brown in one specimen ; the legs brownish

or piceous; beneath, the epipleure included, pitchy-brown, the borders of the propleure ferruginous ; the

legs brownish or piceous; above and beneath sparsely and finely pubescent, the pubescence on the head,

the sides of the prothorax, and under surface cinereous, for the rest fuscous. Head thickly punctured,

flattened in front ; antennz extending to a little beyond the hind angles of the prothorax, the third joint

slightly longer than the second. Prothorax longer than broad, subparallel, the sides feebly sinuate before

and behind the middle; the hind angles slightly divergent and moderately produced, not carinate ; the

surface finely, rather sparsely punctate. Scutellum convex in front, sparsely punctured. Elytra about

two and two-thirds longer than the prothorax, narrowing from the middle, somewhat obliquely truncate

at the apex, the sutural angles obsoletely mucronate; deeply punctate-striate, the interstices convex

and rugosely punctured. Beneath sparsely punctate.

Length 63-73, breadth 12-2 millim. (¢.)

Hab. Mexico (coll. Janson, ex Candéze), Misantla in Vera Cruz (Godman).

Three specimens, apparently all males. The example in the Janson collection is

labelled Asaphes deceptor, Cand., which is here treated as a variety of H. longicollis,

but differs from that insect in its sparser and finer pubescence, the less elongate, sub-

parallel thorax, the hind angles of which are not carinate, the smoother scutellum, &c.

HH. candezei is nearest allied to H. amitinus, but may be separated from the males of

that species by the more parallel, differently coloured thorax, the anterior angles of the

latter being more prominent. The specimen from the Janson collection is figured.

15. Hemicrepidius longicornis. (Tab. XXI. fig. 15, ¢, var.)

Elongate, narrow, shining; black or pitchy-black, the prothorax and propleure ferruginous in one specimen

(d); the antennz black, two basal joints paler in one specimen ; the legs varying in colour from testa-

ceous to pitchy-black; above and beneath sparsely pubescent, the pubescence long and yellowish- or

fulvo-cinereous in colour, the elytra sometimes with blackish hairs intermixed. Head somewhat thickly,

irregularly punctate, flattened in front; antenne rather slender, elongate in the male, extending to about

three joints beyond the hind angles of the prothorax, shorter in the female, joint 3 a little longer than 2.

Prothorax longer than broad, subparallel, the sides slightly sinuate before and behind the middle, and

rounded in front; the hind angles long and acute, strongly divergent, not carinate ; the surface somewhat

thickly, finely punctate. Scutellum rather convex in front, densely punctured. Elytra three times the

length of the prothorax, and much wider than it, gradually narrowing from about the middle, rounded at

the apex ; punctate-striate, the interstices feebly convex and rather sparsely punctured. Beneath sparsely

punctate.

Length 73-84, breadth 2-23 millim. (¢ 2.)

Hab, Costa Rica, Volcan de Irazu 6000 feet (Rogers); Panama, Volcan de Chiriqui

8000 feet (Champion).

A pair from Chiriqui and a male from Costa Rica, the latter having the thorax

ferruginous in colour. This insect differs from most of its allies by the elongate

antenne in the male. From H. instadilis it may be known by its less elongate thorax,

with the hind angles more abruptly divergent, as well as by the form of the antenne.

The antenne are very elongate in the male from Chiriqui, slightly shorter in the

other specimen of the same sex from Costa Rica.

HEMICREPIDIUS. 487

16. Hemicrepidius nitidus.

Elongate, narrow, rather depressed, shining ; black, with a slight metallic lustre, the antennex and legs pitchy-

brown; above and beneath sparsely clothed with long, fine hairs, which are yellowish-cinereous on the

upper and cinereous on the lower surface. Head sparsely punctured, flattened in front ; antenne rather

slender, elongate, extending to fully two joints beyond the hind angles of the prothorax, joint 3 a little

longer than 2. Prothorax longer than broad, subparallel, slightly narrowed in front, feebly sinuate at

the sides behind; the hind angles acute and moderately divergent, not carinate; the surface rather

sparsely and somewhat finely punctate. Scutellum flattened, closely punctured. Elytra nearly three

times the length of the prothorax, and wider than it, narrowing from the middle, subtruncate at the

apex ; punctate-striate, the strie fine, the interstices feebly convex and sparsely punctured. Beneath

very sparsely punctate, the prosternum with widely scattered punctures.

Length 83, breadth 2} millim. (<:)

Hab. Mexico, Cordova (Sallé).

One male example. Allied to H. amitinus, but more depressed and more shining ;

the punctuation of the thorax coarser, and that of the prosternum sparser; the

antenne more elongate in the male. From JZ, longicornis it may be known by the

much less produced hind angles of the thorax.

17. Hemicrepidius cruciatus. (Tab. XXI. fig. 16, 3.)

Elongate, narrow, slightly shining ; black, the prothorax rufous, with a median vitta of variable extent—

sometimes constricted or interrupted in the middle, or reduced to a small mark at the base and apex, and

sometimes broad throughout,—and the hind angles also in some specimens, black; the margins of the

propleur, metasternum, and abdomen usually ferruginous; the legs piceous or black, the antennz

entirely black; the prothorax with a broad patch on either side in front and behind thickly clothed

with long, coarse, decumbent, pale yellowish hairs, leaving a large cruciform mark extending to the base,

apex, and lateral margins, this portion of the surface being clothed with finer, fuscous hairs ; the scutellum

and elytra fusco-pubescent, the elytra in some specimens (2) with a broad oblique space down the disc

of each yellowish-cinereous-pubescent; the head and under surface sparsely clothed with yellowish-

cinereous pubescence. Head triangularly depressed in front, sparsely punctured anteriorly, closely so on

the vertex ; antenne about reaching the hind angles of the prothorax in the female, considerably longer

in the male, joint 3 slightly longer than 2. Prothorax longer than broad in both sexes, feebly rounded at

the sides, the latter slightly converging in front, straight or feebly sinuous before the middle, and sinuate

behind; the hind angles long and strongly divergent, acute, not carinate ; the surface densely and finely

punctate throughout. Scutellum feebly convex in front. Elytra about two and three-fourths longer than

the prothorax, and distinctly wider than it, somewhat rounded at the sides, narrowing from the basal

third, the apices subtruncate; deeply punctate-striate, the interstices rather convex and transversely

rugose, granulate on the basal declivity. Beneath sparsely, finely punctate.

Length 63-72, breadth 14-2} millim. (¢ 9.)

Hab. Guatemala, Purula in Vera Paz 4000 feet (Champion).

This insect occurred not uncommonly in a forest-clearing near Purula ; the specimens

-were found sunning themselves upon leaves. 7. cruciatus is allied to the Mexican

H. pictipes (Chevr.), from which it differs in its narrower and more elongate shape and

less opaque surface; the head is depressed in front and more sparsely punctured; the

thorax has a large patch of coarse pallid pubescence on either side in front and behind,

the cruciform space thus left appearing at first sight almost bare, it being clothed with

finer and darker hairs. The thorax is rufous; the black median vitta is variable in

488 SERRICORNIA.

extent, being sometimes reduced to a small spot at the base and apex, but it does not

extend outwards at the middle (as in H. pictipes), so as to form a cruciform black mark.

18. Hemicrepidius pictipes. (Tab. XXI. fig. 17, 2.)

Agrypnus pictipes, Chevr. Mag. Zool. 18438, tt. 107-118, p. 7°.

Adelocera pictipes, Cand. Monogr. Elat. i. p. 74°.

Asaphes pictipes, Cand. op. cit. iv. p. 217, t. 3. fig. 3°.

Hab. Mexico 3, Jalapa 1 2, Orizaba (Sallé), Cordova (Sallé, Hoge).

Apparently a common insect at Cordova, whence we have received a large number

of examples. This species may be readily known from its allies by its subopaque

surface, transversely rugose elytra, and densely punctured thorax; the latter with a

broad cruciform patch—often interrupted on either side, so as to leave a median vitta

and a marginal spot —black, bordered with rufous, the sides in front and behind being

yellow. The thoracic pubescence partakes of the ground-colour; the hind angles are

not or obsoletely carinate; the base has a distinct deep incisure on either side.

19. Hemicrepidius biformis. (Tab. XXI. figg. 19, ¢; 20,2.)

Moderately elongate, narrow (¢), the females broader, shining; black or piceous (¢), reddish-brown, —

castaneous, or black ( @ ), the prothorax rufous or ferruginous, with a cruciform black patch of variable

extent on the dise—in some specimens ( ¢ ) very broad, extending to the base and apex, and almost to the

lateral margins, and in others (@ ) reduced to an anteriorly dilated median vitta, two transverse marks,

or a transverse mark before the middle; the antenne black, the basal joint usually ferruginous in the

females ; the legs varying in colour from testaceous to piceous ; the under surface varying in colour from

rufo-ferruginous to piveous; above somewhat thickly clothed with rather coarse yellowish-cinereous

pubescence, the pubescence usually fuscous on the elytra in the males and on the prothoracic patch in

both sexes, the elytra in some males with an oblique stripe of yellowish-cinereous hairs on the disc, the

under surface sparsely cinereo-pubescent. Head depressed in front, sparsely punctured anteriorly, closely

so on the vertex; antenne extending slightly beyond the hind angles of the prothorax in the male, a

little shorter in the female, joint 3 slightly longer than 2. Prothorax a little longer than broad, the

sides slightly converging in front, and distinctly sinuate before the middle as well as before the base; the

hind angles feebly divergent, not or obsoletely carinate; the surface densely, finely punctate. Scutellum

convex in front, sparsely punctured. ‘Elytra two and one-half times the length of the prothorax, narrow-

ing from about the basal third, the apices subtruncate ; deeply punctate-striate, the interstices rather

convex, somewhat coarsely punctured, and transversely rugulose, granulate on the basal declivity.

Beneath sparsely, finely punctate.

Length 53-83, breadth 13-21 millim. (¢ @.)

Hab. Mexico, Cordova (Sallé), Jalapa (Hoge); GuatemaLa, Chiacam, Sabo, and

Sinanja in Vera Paz (Champion), Coban in Vera Paz (Conradt).

Found in abundance at Chiacam, upon herbage, the sexes in about equal numbers ;

one or two specimens only at each of the other localities. From Herr Conradt we

have received a pair “in copulé” from Coban. ‘The sexes differ greatly in colour and

size, the males being much smaller than the females, and the latter usually having the

head, elytra, and basal joint of the antenne reddish-brown, and the discoidal mark on

the thorax very much reduced in size. The insect is closely allied to H. eruciatus, but

HEMICREPIDIUS.—ALLOTRIOPSIS. 489

it is smaller and less elongate, and also differs from it in the more shining and less rugose

elytral interstices, the shorter antenne in the male, and the less produced hind angles

of the thorax, the latter with the black mark on the disc dilated laterally in the males,

so as to form a large cruciform patch (in H. cruciatus the black mark is usually

interrupted or constricted about the middle). Ina few of the females the elytra are

black or piceous; the hind angles of the thorax are sometimes obsoletely carinate at

the tip in this sex. From H. pictipes the present species may be known by its narrower

shape and more shining surface, the less densely punctured head and thorax, the latter

not incised on either side at the base, the much less rugose elytral interstices, &c.

The single specimen in the Sallé collection was mixed with the series of H. longi-

collis, from which it differs in its smaller size, the less elongate thorax, the hind

angles of which are not or very indistinctly carinate and the disc is more or less

distinctly marked with a black cruciform patch (of which there is no trace in

H. longicollis), and the rather more abruptly truncate apices of the elytra.

Group ALLOTRIINI.

ALLOTRIOPSIS.

Head very deeply excavate anteriorly ; the front subtriangular, limited on either side by a sharp, oblique

carina, the two being coalescent in the centre, and there joining an oblique ridge extending upwards

from beneath the points of insertion of the antenne, the latter thus appearing to be inserted in deep

cavities ; eyes very large; mandibles bifid; antenne (¢) exceedingly elongate, two-thirds the length of

body, joint 3 very short, shorter than 2, the two together not nearly so long as 4, 4-11 very elongate,

flattened, moderately widened, and serrate; prothorax transverse, bisinuate at the apex and trisinuate at

the base, sharply margined, with long, narrow, acute hind angles ; scutellum oval, flattened, rather large ;

elytra very elongate, confusedly punctured, without trace of striee ; prosternum moderately broad, with a

broad, subtruncate, prominent chin-piece, the lateral sutures single and sinuous, the process declivous

behind the coxee, long, and compressed ; mesosternum depressed, the borders of the cavity not raised ;

metasternum elongate; posterior coxal plates rapidly narrowing from opposite the point of insertion of

the femora, becoming very narrow outwards; legs elongate, rather slender; tarsi somewhat compressed,

joints 2-4 slightly emarginate on the upperside at the apex, lobed beneath, the lobes becoming longer

and broader outwards, the lobe on the very short, penultimate joint fully two-thirds the length of the

apical joint and broad at the tip; basal joint of the hind tarsi about as long as the following three joints

united ; claws simple.

The remarkable Elaterid from which the above characters are taken differs from all

the other genera of the group Allotriini, one only of which is American, in the

triangular, deeply excavate front. The tarsal joints 2-4 have each a long lobe beneath,

as in the eastern genus Allotrius. The form of the head somewhat resembles that of

the genus Dicrepidius of the group Dicrepidiini, from which the present insect differs

in the deeply excavate triangular front, the narrow coxal plates, the strongly lobed

penultimate tarsal joint (this joint being simple in the Dicrepidiini), &c. The

form of the tarsi, &c. distinguishes it from the American genus Anaissus, Cand.,

of the group Crepidomeni.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1896. 3R

490 SERRICORNIA.

1. Allotriopsis nasalis. (Tab. XXI. figg. 18, ¢; 184, antenna.)

Very elongate, somewhat flattened above, moderately shining ; fusco-castaneous ; above somewhat thickly

clothed with moderately coarse, decumbent, yellowish-cinereous hairs, those on the prothorax long and

appearing to be transversely or obliquely combed inwards, the hairs on the elytra unequally distributed,

here and there forming denser patches, the under surface very sparsely clothed with long hairs. Head

closely, coarsely punctate. Prothorax much broader than long, widest a little before the middle, broadly

depressed and explanate at the sides, and with a large shallow fovea on either side of the disc about the

middle and another towards the base; the sides rounded from the middle forwards and converging and

sinuate behind; the hind angles long, narrow, and divergent, finely carinate. Hlytra rather more than

four times the length of the prothorax, and a little wider than it, parallel to near the middle and

narrowing thence to the apex, the apices dehiscent and separately rounded ; the surface impressed with

fine and rather coarse punctures intermixed, the punctuation towards the sides here and there becoming

more crowded, and with traces of very shallow longitudinal grooves, which become more distinct laterally

and at the apex. Beneath very sparsely punctured.

Length 14, breadth 33 millim. (¢.)

Hab. Guatemata, Cerro Zunil 4000 feet (Champion).

One example, found in a forest-clearing, in the vicinity of the coffee-plantation of

Las Nubes, on the Pacific slope. The insect is unknown to Dr. Candéze.

Group HYPODESINI.

HYPODESIS.

Hypodesis, Latreille, Ann. Soc. Ent. Fr. iii. p. 156 (1834) ; Lacordaire, Gen. Col. iv. p. 202

(1857) ; Candéze, Monogr. Elat. iv. p. 242.

One of the most characteristic genera of Hlateride in Central America; nine species

are known to me *, two only of which extend into the northern part of South America.

In some of them, H. auretpilis and H. auricoma, the meso- and metasternum are almost

connate, the transverse suture being distinct at the sides only. Most of the species

have a more or less distinct matted tuft or pencil of hairs on either side of each of the

first four ventral segments behind, these being partly visible from above, as in various

Buprestide ; in H. viridipennis there is a large impunctate glabrous space in front of

each of these tufts.

a. Ventral segments with, at most, a small glabrous spot on either side; elytra

not metallic (except in H. auricoma and its var. «).

a'. Hind angles of the prothorax sharply carinate ; elytra without definite

markings.

a". Elytra conspicuously pubescent.

a", Prothorax without a distinct projecting tuft of hairs in the centre

at the base.

a’. Elytra finely punctate-striate.

a’. Prothorax moderately coarsely punctate, distinctly or obsoletely

canaliculate.

* An additional undescribed form from Chiguinda, Ecuador, is contained in the Janson collection.

HYPODESIS. AQ]

a’. Pubescence of the upper surface coppery-orange ; prothorax

and elytra densely punctured. . . 2. 2... ww. Sericed.

6°. Pubescence of the upper surface golden; prothorax and elytra

more sparsely punctured.

”, Elytral interstices uniformly punctured . . . . .. chrysomalla.

i Second and fourth elytral interstices more densely punctured

than the others; prothorax shorter, and more coarsely

punctured on the disc . . . . ww . . aureipilis.

6°. Prothorax coarsely, rugosely punctate, obsoletely canaliculate . cribricollis.

b‘. Elytra coarsely punctate-striate, the striz shallow (obsolete in

some specimens) ; prothorax canaliculate . . . . . . . . punctata.

b'", Prothorax with a distinct projecting tuft of hairs in the centre at the

base, canaliculate, and sparsely punctate . . . . . . . . . penicillata.

6", Elytra almost glabrous, submetallic (except in var. 8) ; prothorax with

a projecting tuft of hairs in the centre at the base, canaliculate . . auricoma.

b'. Hind angles of the prothorax without distinct carina; elytra vittate . . vittata.

6. Ventral segments with a large smooth glabrous space on either side; pro-

thorax without distinct median groove, the hind angles carinate; elytra

metallic 2. 2. 1 ee ee ee ee ee ee ee . viridipennis.

1. Hypodesis sericea. (Tab. XXI. fig. 21, ¢.)

Hypodesis sericea, Latr. Ann. Soc. Ent. Fr. 11. p. 156 (sine descr.) (1834) *; Lacord. Gen. Col. iv.

p. 202%; Cand. Monogr. Elat. iv. p. 248, t. 3. figg. 10, 10a, 6°.

Dicrepidius lanuginosus, De}. Cat. 3rd edit. p. 97 *.

Hab. Muxico !~4, Toxpam, Cordova (Sallé), Jalapa (Hége).

In this insect, of which upwards of a dozen examples are before me, the pubescence

of the upper surface is of a uniform coppery-orange colour and that of the lower

surface cinereous, the hairs on each of the first four abdominal segments (as in

H. chrysomalla, H. cribricollis, &c.) forming a matted tuft at the sides behind, this

being partly visible from above. The abdominal segments have each a small glabrous

spot at the sides.

2. Hypodesis chrysomalla.

Hypodesis sericea, Germ. Zeitschr. fiir Ent. i. p. 229 ' (nec Cand.).

Hypodesis chrysomalla, Cand. Monogr. Elat. iv. p. 244°.

Hab. Mxxico1, Toxpam, Cordova, Orizaba (Sallé?), Fortin in Vera Cruz (H. H.

Smith), Jalapa, Tapachula (Hoge); GuatemaLa, Coban (Conradt), San Juan. in Vera

Paz, Zapote (Champion).

Sent in plenty from Jalapa. The three specimens from San Juan (abraded females)

have the thorax less closely punctured than usual, but they appear to belong here

rather than to H. penicillata. H. chrysomalla is probably a variety of H. sericea,

3R 2

492 SERRICORNIA.

which occurs also at Toxpam, Cordova, and Jalapa, but differs from it in the rather

less densely punctured thorax and elytra, and the paler and more golden pubescence of

the upper surface. The males are considerably smaller than the corresponding sex of

H. sericea, with the hind angles of the thorax a little more divergent. The elytra

vary in colour from brownish-black to reddish-brown, being often paler towards the

base; the interstices are thickly and equally punctured throughout. In some of the

fresher specimens the hairs appear to be transversely combed inwards towards the

suture. The females are sometimes much larger, broader, and more elongate than

the males. If Germar has correctly identified Latreille’s species, the name WH. sericea

should be applied to this insect.

3. Hypodesis aureipilis. (Tab. XXI. fig. 22, ¢ .)

Moderately elongate, broad, robust, feebly shining; reddish-brown or castaneous, darker beneath, the legs

obscure testaceous or brown; above and beneath thickly clothed with long and rather coarse golden hairs,

the hairs on the prothorax and on the second elytral interstice obliquely or transversely combed inwards,

the first four ventral segments each with a matted tuft of hairs at the sides behind. Head coarsely,

rugosely punctate, depressed in front; antennz extending to a little beyond the hind angles of the

prothorax in the male, shorter in the female, the joints from the fourth strongly serrate, 3 nearly as long

as 4. Prothorax convex, much broader than long, narrowed in front, the sides rounded anteriorly and

sinuate behind; the hind angles long and divergent, carinate; the surface thickly, coarsely punctate, a

narrow space down the middle behind and a small space on either side of the disc before the middle

impunctate, very distinctly canaliculate. Elytra about three and one-fourth times the length of the

prothorax, rapidly narrowing from a little below the base in the male, subparallel in their basal third in

the female; finely punctate-striate, the punctures becoming coarse and deep towards the sides, the strice

deeply impressed on the basal declivity and also becoming deeper towards the apex, the interstices flat,

the second and fourth densely, the others distinctly more sparsely and a little more coarsely, punctate.

Beneath sparsely and finely, the prosternum and propleure coarsely, punctured ; the ventral segments each

with a small glabrous spot at the sides.

Length 10-114, breadth 84-38 millim. (¢ 2.)

Hab. Panama, Bugaba (Champion), Chiriqui (A7bde).

Six examples. Very like H. chrysomalla, but differing from it in the unequally

punctured elytral interstices (the second and fourth being distinctly more densely

punctured than the others) and the coarsely punctured disc of the thorax; also in the

shorter and more convex thorax. in the males, the sides being more rounded anteriorly

and less rapidly converging. ‘The more transverse thorax and the less coarsely

punctured elytral strie distinguish H. auretpilis from H. punctata.

4. Hypodesis cribricollis.

Hypodesis cribricollis, Cand. Monogr. Elat. iv. p. 246°.

Hab. Mexico (Sallé1), Jalapa (Hége).

Four specimens of this insect have been examined, including the types; they appear

to be all females. H. cribricollis may be separated from H. sericea and H. chrysomalla

- HYPODESIS. 493

by the densely and rugosely punctured thorax, with the median groove indistinct. All

three occur at Jalapa.

5. Hypodesis punctata.

Hypodesis punctata, Cand. Monogr. Elat. iv. p. 245".

Hab. Mexico, Tapachula in Chiapas (Hége); Guatemata, Yzabal (Sal/é1), Teleman

and Chacoj in Vera Paz, Zapote (Champion). |

This species may be distinguished from H. chrysomalla by the coarsely punctured

elytral striz, the striee themselves being shallow or almost obliterated. In four out of

the five specimens from Tapachula, and in the two from Zapote, probably all males,

the seriate punctures on the elytra are still coarser and deeper towards the sides, there

becoming as broad as the interstices, the strie are obsolete, and the hairs on each of

the outer interstices are seriately arranged. Females only (including the types) have

been received from the Atlantic slope; both sexes from the Pacific slope. The males

appear to have the third elytral interstice a little more densely punctured than the

others.

6. Hypodesis penicillata. (Tab. XXI. fig. 23, 2.)

Hypodesis penicillata, Cand. Monogr. Elat. iv. p. 244°.

Hab. Mexico, Playa Vicente and San Andres Tuxtla in Vera Cruz (Sad/é), Fortin in

Vera Cruz (H. H. Smith), Teapa in Tabasco (coll. Janson); Guatemaua, Yzabal (Sadlé +),

Panzos in Vera Paz (Champion).—Cotomsta (coll. Janson).

Closely allied to H. chrysomailla, but differing from it in the more sparsely punctured

thorax, and in the sparser and less conspicuous pubescence of the elytra. ‘The thorax

is clothed with long decumbent golden hairs, these at the base in the middle being so

arranged as to form a broad pencil or tuft, which projects over the anterior part of the

scutellum. The hairs on the abdomen form a matted tuft on the outer part of each

segment behind. The locality “ Yzabal” given for this species and H. punctata is in

Guatemala, not in Honduras as stated}. One of the types is figured.

7. Hypodesis auricoma. (Tab. XXI. fig. 24, 2 .)

Moderately elongate, broad, robust, shining; black, the elytra with a faint bluish or greenish lustre, the legs

pitchy-brown ; the head and prothorax clothed with long, coarse, decumbent, bright golden hairs, those on

the prothorax transversely or obliquely combed inwards, the hairs at the centre of the base forming a pro-

jecting tuft; the elytra with a few golden hairs at the extreme apex only, for the rest apparently glabrous

(under a high magnifying-power minute scattered hairs are visible in fresh specimens); the legs and

under surface also clothed with bright golden hairs, which form dense matted tufts at the sides of the first

four ventral segments behind. Head coarsely, rather sparsely punctate, depressed in front; antenne

extending to a little beyond the hind angles of the prothorax in the male, shorter in the female, the joints

from the fourth strongly serrate, 3 nearly as long as 4. Prothorax convex, strongly transverse, narrowed

in front, the sides rounded anteriorly and sinuate behind; the hind angles long and moderately divergent,

494 SERRICORNIA.

carinate, the carina extending forwards to the middle of the prothorax; the surface rather sparsely

punctate (the punctures coarser and closer in some specimens than in others), a narrow space down the

centre, and sometimes a small space on either side of the disc before the middle, impunctate, very distinctly

canaliculate. Elytra from two and two-thirds to three times the length of the prothorax, rapidly narrowing

from a little below the base, the apices rather narrow; very finely punctate-striate, the punctures

becoming coarser towards the sides and apex, the stria very shallow or almost obsolete on the disc,

distinct at the apex, and deeply impressed on the basal declivity, the interstices flat and very finely some-

what thickly punctate. Beneath very sparsely punctured, the prosternum coarsely and closely punctate

in front; the suture between the meso- and metasternum obliterated in the middle.

Length 11-12, breadth 32-4 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Var. a. The prothorax, except at the apex, and propleure rufous or ferruginous, sometimes black at the sides.

Hab. Panama, Bugaba (Champion).—Co.oms1a (coll. Janson).

Var. 8. The prothorax, except along the margins and apex, the propleure in part, and the sides of the meta-

sternum, rufo-ferruginous or rufo-castaneous; the elytra brownish-testaceous or rufo-castaneous, with the

suture narrowly infuscate; the legs obscure testaceous or fusco-ferruginous.

Hab. Nicaragua, Chontales (Belt, E. M. Janson).

Sixteen specimens of the typical form, four of the variety «, and four of the variety f.

The punctuation of the thorax is variable, it being much coarser and closer in some

specimens than in others. HH. auricoma may be at once known from all the species of

the genus described by Candéze by the almost glabrous elvtra. The tufts of hair at

sides of the ventral segments are partly visible from above.

8. Hypodesis vittata. (Tab. XXI. fig. 25, ¢, var.)

Hypodesis vittata, Cand. Monogr. Elat. iv. p. 246, t. 3. fig. 11°.

Hab. Mexico, San Andres Tuxtla, near Cordova (Sal/é+); Nicaragua, Chontales

(Belt, E. M. Janson); Costa Rica (coll. Janson); Panama, Volcan de Chiriqui 4000 feet

(Champion).

I have seen twelve examples of this widely distributed very distinct species. The

piceous or black discoidal patch on the thorax varies in extent, it being in some

specimens reduced to four spots, and in others almost obsolete; the hind angles are

without distinct carina. The yellowish marginal stripe of the elytra is sometimes

obliterated. The abdomen and metasternum are clothed at the sides with a belt of

long, felted, pale golden hairs, the rest of the under surface being rather sparsely

pubescent. ‘The type described by Candéze is a small male; some of the females are

much larger. A specimen from Chontales is figured.

9. Hypodesis viridipennis. (Tab. XXI. fig. 26,3.)

Elongate, broad, robust, shining; black, the elytra with a greenish lustre, the legs and antennse piceous; above

very sparsely clothed with long, fine, decumbent yellowish-cinereous hairs, the lower surface with widely

scattered whitish hairs, the first four ventral segments each with a matted tuft of whitish hairs at the

HYPODESIS.—CARDIORHINUS. © 495

sides behind. Head very coarsely, irregularly punctate, flattened in front ; antenne extending to a little

beyond the hind angles of the prothorax in the male, shorter in the female, the joints from the fourth

strongly serrate, 3 as long as, but narrower than, 4. Prothorax much broader than long, flattened on the

disc and narrowing from the base in the male, more convex and rounded at the sides anteriorly in the

female; the hind angles long and strongly divergent, carinate; the surface coarsely, rather sparsely

punctate, the punctuation becoming closer towards the sides and apex, much finer and sparser on the disc

in the females, sometimes obsoletely canaliculate and with indications of a narrow smooth space down the

centre at the base. Elytra from three and one-quarter to three and two-thirds the length of the prothorax,

gradually narrowing from about the basal third, more parallel in the female in one specimen ; very finely

punctate-striate, the punctures not very closely placed, becoming coarser towards the sides, the strie

obsolete on the disc in some specimens and on the basal declivity deeply impressed, the interstices flat

and sparsely, very finely punctate. Beneath sparsely and finely, the prosternum and propleure coarsely,

punctured, the ventral segments each with a large space at the sides impunctate, the prosternal process

also impunctate along the middle; the suture between the meso- and metasternum obliterated in the

centre.

Length 134-16, breadth 4-5 millim. (d 9.)

Hab. British Honvuras (coll. Janson); GuateMaua, Senahu and Purula in Vera Paz

(Champion).

Five specimens, four of which are from Guatemala. ‘This insect is not closely allied

to any of the other members of the genus, from all of which it may be known at a

glance by the large glabrous impunctate space at the sides of each of the ventral

segments. ‘The pubescence is long, fine, and sparse, and easily abraded, two of the

specimens appearing to have the elytra almost glabrous. The punctuation of the thorax

is much coarser and closer in the males than in the females; the latter have the

elytral strize almost obsolete on the disc, and the interstices very sparsely and minutely

punctate. The tufts of whitish hairs at the sides of the ventral segments are con-

spicuous from above.

Group CARDIORHINI.

CARDIORHINUS.

Cardiorhinus, Eschscholtz, in Thon’s Archiv, ii. 1, p. 84 (1829) ; Candéze, Monogr. Elat. iv. p. 247.

The thirty-six described species of this genus are all from South America, one of

them being found as far south as Buenos Ayres. A single species is now added from

our region.

1. Cardiorhinus binotatus. (Tab. XXI. fig. 27,2.)

Elongate, rather narrow, shining, very sparsely and finely pubescent; above testaceous, a narrow stripe down

the centre of the prothorax, and a small rounded or oblique spot on the outer part of the disc of each

elytron at the middle, black; beneath ferruginous. Head coarsely and closely umbilicate-puuctate ;

antenne nearly reaching the hind angles of the prothorax, joint 3 as long as 4. Prothorax moderately

convex, a little longer than broad, rounded at the sides anteriorly; the hind angles long and stout,

strongly divergent, incurved at the tip, and sharply carinate; the surface sparsely, coarsely punctate, the

punctuation becoming excessively coarse, umbilicate, and crowded towards the sides and sparser and. finer

at the base, deeply canaliculate behind. Elytra three times the length of the prothorax, flattened on the

496 SERRICORNIA.

disc, rapidly narrowing from about the basal third, somewhat attenuate at the apex; punctate-striate, the

punctures coarse and closely placed, becoming very fine towards the suture, the interstices flat on the disc,

convex at the sides, and very sparsely, minutely punctate. Metasternum and abdomen very finely and

diffusely, the prosternum and propleure very coarsely, punctured, the propleure more closely impressed

with excessively coarse, umbilicate punctures; mesosternum declivous, depressed.

Length 113-18, breadth 3-33 millim. ( 9.)

Hab. Nicaracva (Salié), Chontales (Belt, E. M. Janson).

Seven specimens, probably all females. Allied to C. frenatus (Germ.), from Brazil,

but with the thorax very much more coarsely punctured, the hind angles more divergent

and incurved at the tip, the elytra differently coloured, &c. The insect is unknown to

Dr, Candéze.

Group LUDIINI.

TOMOCEPHALUS.

Tomicephalus, Latreille, Ann. Soc. Ent. Fr. 1834, p. 146; Candéze, Monogr. Elat. iv. p. 284.

Tomocephalus, Gemminger and Harold, Cat. v. p. 1587; Candéze, Cat. Méthod. Elat. p. 187.

Megacnemis, Eschscholtz, in Silb. Revue Ent. iv. tab. (1836); Castelnau, Hist. Nat. Ins. Col. 1.

p- 239 (1840).

A Tropical-American genus containing four described species; three others are now

added. All but one inhabit Central America, five not being known from south of the

Isthmus of Panama.

a. Body flattened above ; elytral apices distinctly flattened.

a’. Black, the prothorax and propleure, and sometimes the metasternum and

abdomen in part, sanguineous; prothorax broader than long . . . . sudstriatus.

b'. Black, the abdomen and metasternum usually in part sanguineous ; pro-

thorax aslong as broad . . . . Ct. . soe ee ew melanotus.

b. Body more convex above; elytral apices not flattened.

c'. Black, the abdomen usually j in great part sanguineous or rufous . . . abdominalis.

a Black, the prothorax, prosternum, and propleure rufous . . . . sardioderus.

. Black, the elytra with the basal half or more, except along the s suture,

flavous . . Le Loe ees - . . « bicolor.

f'. Head black, with a reddish spot in front ; prothorax rufo-ferruginous,

with a transverse black median fascia; elytra flavous, with the suture

very broadly and the margins narrowly black; beneath partly black . . insignis.

1. Tomocephalus substriatus. (Tab. XXII. fig. 1, 3.)

Tomicephalus substriatus, Cand. Monogr. Elat. iv. p. 286*; Steinh. Col. Hefte, xiv. p. 133°.

Tomocephalus substriatus, Cand. Cat. Méthod. Elat. p. 188 *.

Hab. Muxico (coll. Janson), San Andres Tuxtla (Sallé) ; Nicaraeva (Sallé), Chontales

TOMOCEPHALUS. 497

(Belt, Richardson) ; Costa Rica (Van Patten); Panama, Bugaba, Volcan de Chiriqui

(Champion).—CotomB1a2; VENEZUELA!®; Ecuapor; Braziu.

Not uncommon in Central America, though it has not yet been received from

Guatemala (where it should occur on the Atlantic slope). It varies greatly in size,

some of the males being no larger than TZ. sardioderus, and in the colour of the meta-

sternum and abdomen, these parts (the apex of the latter excepted) being sanguineous

in one of the Colombian specimens before me. ‘The prosternum is always black

or piceous. 7’. substriatus is extremely closely allied to the South-American

T. sanguinicollis, Latr., but may be separated from it by the elytra not being distinctly

carinate externally at the apex. A male from Chiriqui is figured.

2. Tomocephalus melanotus. (Tab. XXII. fig. 2, 2.)

Tomicephalus sardioderus, var. a, Cand. Monogr. Elat. iv. p. 286°.

Elongate, flattened above, very shining, deep black; beneath entirely black, or with the first three or four

ventral segments, and sometimes the whole or part of the metasternum also, sanguineous; the tarsal

claws rufous; above very sparsely clothed with long, fine, blackish hairs, which are erect on the head and

prothorax and decumbent on the elytra, beneath very sparsely clothed with fulvo-cinereous hairs. Head

sparsely, coarsely punctate; antenne stout, extending to about three joints beyond the hind angles of the

prothorax in the male, shorter in the female, the joints from the fourth broadly widened and serrate.

Prothorax as long as broad, subconical, rapidly narrowing from the base forwards, the sides a little

rounded anteriorly and very feebly sinuate behind; the hind angles moderately long, divergent, slightly

incurved at the tip, carinate; the surface with very widely scattered punctures, which are fine on the

disc, but become coarser towards the sides and apex, deeply canaliculate behind, and with a space down

the centre from the middle to the base impunctate. Elytra about three and one-fifth times longer than

the prothorax, rapidly narrowing from the base, broadly and deeply depressed in front near the shoulders

and also depressed along either side of the suture to the apex, the sutural angles mucronate and slightly

dehiscent ; finely, confusedly, and somewhat thickly punctate, and with indications of faint longitudinal

furrows. Beneath very sparsely punctured.

Length 111-18, breadth (of the base of the elytra) 3-33 millim. (¢ 9.)

Hab. Mexico, Cordova (Sallé1); Guatemana, Cerro Zunil, San Isidro, Zapote

(Champion).

Found not uncommonly on the Pacific slope of Guatemala. The single specimen

from Mexico is the only one received with the abdomen and metasternum entirely

black. Larger and less convex than 7. abdominalis; the thorax wider behind, more

conical in shape in both sexes, and more coarsely punctured at the sides and in front ;

the elytra wider at the base (appearing more attenuate), more flattened on the disc,

especially at the apex, and with faint longitudinal furrows (the one next the suture

distinct), the basal depressions larger and deeper and with distinct longitudinal grooves

indicating the position of the striz. Apart from the difference in the colour of the

thorax, 7. melanotus may be easily separated from T. substriatus by its more elongate

thorax. A Guatemalan specimen is figured.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1896. 3S

498 SERRICORNIA.

3. Tomocephalus abdominalis.

‘ 1

Tomocephalus abdominalis, Cand. Ann. Soc. Ent. Belg. 1889, p. 118 (Elat. Nouv. iv. p. 52)°.

Hab. Mexico, San Andres Tuxtla (Sallé); GuaremaLa, Senahu and Sinanja in Vera

Paz (Champion); Panama, Volcan de Chiriqui (Champion), Chiriqui °.

I have seen ten specimens of this species, including the type, kindly sent by

Dr. Candéze for examination. In all of them the abdomen is sanguineous or rufous,

except at the apex.

4, Tomocephalus sardioderus. (Tab. XXII. fig. 8, ¢ .)

Tomicephalus sardioderus, Cand. Monogr. Elat. iv. p. 286* (excl. var.).

Tomocephalus sardioderus, Cand. Cat. Méthod. Elat. p. 188”.

Hab. Mexico 2, Cordova (Saldé !).

The description of this insect is not clear, as it appears to have been made from more

than one species. Of the four Mexican specimens representing it in the Sallé collection,

apparently all females, one is certainly referable to 7’. substriatus, one to T. abdominalis

(agreeing with the type of that species), one, the only example I have seen, to

T. sardtoderus, and one to the insect here described under the name 7. melanotus.

‘The example (2?) of Z. sardioderus does not, however, differ from the S.-American

T. sanguinicollis, Latr., in having the thorax more elongate as stated ', this remark

applying to 7. abdominalis and 7. melanotus only ; itis closely allied to 7. abdominalis,

of which it may be a colour-variety, but differs from it in having the elytra a little

more closely punctured. From 7. substriatus (2) it may be separated by the more

convex and less coarsely punctured thorax, the sides of which are more rounded, the

less flattened apex of the elytra, and the rufous prosternum.

5. Tomocephalus bicolor. (Tab. XXII. fig. 4, 3.)

Elongate, narrow, rather convex, very shining; deep black, the elytra with the basal half or three-fifths,

except along the suture, flavous or stramineous, the tarsal claws rufous; above rather sparsely clothed

with long hairs, which are erect on the head and prothorax and semierect on the elytra, and partake of

the ground-colour, the under surface sparsely clothed with decumbent fulvo-cinereous hairs. Head

sparsely, rather finely punctate ; antenne in the male nearly half the length of the body, shorter in the

female, the joints from the fourth broadly widened and serrate. Prothorax almost as long as broad in

the male, shorter in the female, strongly narrowed in front, the sides rounded at the middle and sinuate

behind; the hind angles moderately long and divergent, slightly incurved at the tip, carinate ; the surface

with widely scattered fine punctures. lytra about three and one-fourth times the length of the

prothorax, a little flattened on the disc, rounded at the apex, the sutural angles rather sharp, the base

depressed near the shoulders ; with widely scattered, irregularly arranged, very fine punctures, and, on

the flavous portions, with regular rows of coarse punctures showing throvgh from beneath the surface.

Beneath very sparsely, finely punctate.

Length 82-11, breadth 23-3 millim. (¢ 9.)

Hab. Nicaraaua (Sallé), Chontales (Belt, EH. M. Janson); Panama, Bugaba, Volcan

de Chiriqui (Champion).

TOMOCEPHALUS.—LUDIUS. 499

Fourteen examples, eight of which are from Chiriqui. Allied to 7. abdominaits, but

differing from it, apart from colour, in having the thorax a little less elongate, with

the sides more rounded at the middle and more sinuate behind. Some of the females

are much broader than others, with the thorax more closely punctured. The insect

resembles a small Ypsilostethus or Semiotus. A male from Chiriqui is figured.

6. Tomocephalus insignis. (Tab. XXII. fig. 5, 2.)

Tomocephalus insignis, Jans. in litt.

Elongate, robust, rather broad, very shining ; head, antenne, and scutellum black, the head with a reddish-

yellow spot in front; the prothorax rufo-testaceous or rufo-ferruginous, with a transverse black median

fascia extending to near the sides, the sides and base in some specimens indeterminately flavous,

the basal margin black; the elytra each with a tapering flavous or stramineous stripe on the disc,

occupying the entire width at the base, and extending to near the apex, the suture broadly and the sides

narrowly, the epipleurz included, black ; beneath black, the prosternum, except in front and behind, and

the outer portion of the propleure, flavous, the metasternum at the sides and in front reddish-yellow ;

the legs piceous; above somewhat thickly clothed with long hairs, which are erect on the head and

prothorax and decumbent on the elytra, the hairs yellow on the yellow portions and blackish on the other

parts, the under surface and legs thickly clothed with fulvo-cinereous hairs. Head rather coarsely,

closely punctate; antennz extending considerably beyond the hind angles of the prothorax, the joints

from the fourth widened and serrate, 3a little longer than 4. Prothorax broader than long, convex,

rapidly narrowing from the base, the sides rounded from about the middle forwards and sinuate behind ;

the hind angles divergent, moderately long, carinate ; the surface somewhat closely, rather finely punctate,

the punctuation becoming finer and more scattered at the base, canaliculate behind. Elytra about three

and one-fifth times the length of the prothorax, flattened on the disc, rapidly narrowing from the base,

the apices conjointly rounded ; finely, somewhat thickly, confusedly punctate, and with shallow longitu-

dinal furrows or obsolete striee, each of which is indicated, on the flavous portions, by a regular row of

coarsish punctures showing through from beneath the surface. Beneath finely and somewhat closely

punctate, the prosternum and propleure with widely scattered coarser impressions,

Length 134-15, breadth 32-43 millim. ( 9.)

Hab. Nicaracua (Sallé), Chontales (Belt, E. M. Janson).

Seven examples, probably all females. Very different from any of the described

species of the genus. ‘he thorax is more convex than in 7. substriatus and its allies.

LUDIUS.

Ludius, Latreille, Fam. Nat. Régne Anim. p. 349 (1825) (nec Eschscholtz); Candéze, Monogr.

Elat. iv. p. 294; Cat. Méthod. Elat. p. 188 (1891) ; Horn, Trans. Am. Ent. Soc. xii. p. 45.

Steatoderus, Eschscholtz, in Silb. Rev. Ent. iv. tab. (1836) ; Buysson, Faune Gallo-Rhéuane, Elat.

p. 60 (1894). .

Crigmus, Leconte, Trans. Am. Phil. Soc. new ser. x. p. 453 (1853).

This widely-distributed genus contains about sixty-four described species, seventeen

of which are American. As adopted here, it also includes Probothrium rufipes and

P. physorhinus, Cand., these species differing from Candéze’s definition of Probothrium

in the gradually declivous (not vertical) mesosternum and the less prominent intercoxal

portion of the metasternum ; P. setosum (Germ.) also seems to me to be better placed

here. The Central-American species may be separated into three groups by the form

S32

500 SERRICORNIA.

of the prosternal process, a character overlooked by Candéze and others, and one which

may eventually be considered to be of generic value*. Good differential characters

are also to be found in the form of the prosternal sutures, the exterior of the two being

in some species almost completely obliterated, and in others sharply defined, with the

enclosed space impunctate. Our species all belong to Section III. of Dr. Candéze’s

Monograph.

a. Prosternal process extended in the plane of the prosternum to the ante-apical

tooth ; intercoxal portion of the mesosternum declivous.

a’, Outer prosternal suture almost obliterated, the propleural punctuation

extending inwards; third joint of the antenne much longer than the

second; elytra obsoletely striate. Species large and robust . . . . ~ cylindricollis.

2/. Outer prosternal suture usually well-defined (except in L. tropicalis), the

space enclosed impunctate or nearly so. Species smaller and narrower.

a", Third joint of the antennz not, or not very much, longer than the second.

a, Elytra moderately elongate, at most obsoletely striate.

a‘, Punctuation of the prothorax sparse and coarse, that of the elytra also —

sparse and rather rugose; antennz very elongate inthe male. . . nigricollis.

6. Punctuation of the prothorax rather close and coarse, that of the

elytra fine and close; antenne short inthe male. . . . . © ~ isthmicus.

c’. Punctuation dense and moderately coarse, that of the elytra fine and

close; antennz moderately elongate in the male.

a’. Prothorax opaque, very densely punctured; pubescence dense ;

antenne with joints 2and 38 subequal . . . . . « « + « = Subsericeus.

b°. Prothorax subopaque, densely punctured; pubescence sparser ;

antenne with joint 3 distinctly longer than 4. . . . . . . subopacus.

6". Elytra comparatively short, deeply punctate-striate . . . . . breviusculus.

b". Third joint of the antenne nearly equal to the fourth ; punctuation of ‘the

prothorax and elytra close; elytra obsoletely striate . . . . . . . tropicalis.

b. Prosternal process gradually declivous behind the cox; intercoxal portion

of the mesosternum declivous, not or feebly raised anteriorly; third joint

of the antenne slightly longer than the second.

c', Outer prosternal suture almost obliterated, the propleural punctuation

extending inwards.

cl, Elytra rather coarsely punctate-striate; body moderately convex . . . rubicundus.

d", Elytra very finely striate; body very elongate, depressed, subparallel . . depressus.

d'. Outer prosternal suture well-defined, the space enclosed impunctate; body

rather elongate, moderately convex; elytra narrowing from the base,

punctate-striate. . . . . oe ee we we ew ew ee physorhinus.

c. Prosternal process abruptly and perpendicularly declivous a little behind the

coxe, and subhorizontally extended thence to the ante-apical tooth; the

* Lewis, in his paper on the Elateride of Japan [Ann. & Mag. Nat. Hist. (6) xiii. p. 266], applies the name

Ludius to the first group, and Crigmus, Lec., to the third group; he takes L. hepaticus, Germ. (nec Lec.), as

the type of Crigmus, but, unfortunately, neither of the two species originally included in Crigmus possesses

the characters he assigns to it.

LUDIUS. 501

intercoxal portion of the mesosternum subangularly raised anteriorly ; outer

prosternal suture faint or interrupted, the space enclosed sparsely punctate ;

third joint of the antenne short, very little longer than the second; elytra

finely striate. Species large and robust.

e'. Antenne broadly,and acutely serratein male. . . . . . . . . . . = setosus.

f'. Antenne moderately dilated and serratein male. . . . . . . . « « = meridanus.

1. Ludius cylindricollis. (Tab. XXII. figg. 6,2; 6 a, prosternal process.)

. Moderately elongate, broad, robust, shining; nigro-piceous, the legs and antenne ferruginous; above and

beneath somewhat thickly clothed with short, decumbent, fulvous pubescence. Head thickly, coarsely

punctate ; antenne short, not nearly reaching the hind angles of the prothorax, the joints from the fourth

moderately dilated and serrate, 3 considerably longer than 2, the two together longer than 4, 11 appendi-

culate. Prothorax convex, about as long as broad, with the sides subparallel in their median third, and

rounded in front, slightly widening behind, the marginal carina visible from above towards the base only ;

the hind angles long, straight, and very sharply, obliquely carinate, the carina extending for some distance

forwards; the surface coarsely and somewhat thickly punctate, the punctuation sparse on the basal

declivity. Elytra two and two-thirds longer than the prothorax, rapidly narrowing from about the

middle, becoming very narrow at the apex, the apices rather sharp; thickly, finely, rugulosely punctate,

with the sutural stria only distinct, the others almost obsolete. Beneath finely and somewhat thickly,

the prosternum and propleure coarsely and more sparsely, punctate; prosternal process long, extended in

the plane of the prosternum for two-thirds of its length, the ante-apical tooth very prominent; intercoxal

portion of the mesosternum declivous, V-shaped; posterior coxal plates broadly widened in their inner

third, triangularly dilated opposite the point of insertion of the femora.

Length 214, breadth 6 millim, .

Hab. Nicaraava, Chontales (Belt).

One example. This insect resembles Z. setosus, but may be known from it by the

longer thorax, the more coarsely punctured propleure, the very differently formed

pro- and mesosternum, and the triangularly dilated posterior coxal plates. From

the North-American L. hepaticus, Lec., it differs in the more cylindrical thorax, the

long, horizontal prosternal process, the triangularly dilated coxal plates, the obliteration

of the elytral striz (the first excepted), &c.

2. Ludius nigricollis, (Tab. XXII. figg. 7,4; 7a, antenna.)

Elongate, narrow, rather convex, shining; castaneous-brown, the elytra with the basal declivity usually

rufous, and in some specimens the sides from a little below the shoulder to about the middle indetermi-

nately piceous, the prothorax black, with the basal and apical margins and the hind angles usually

castaneous; beneath black, the apex of the abdomen and the hind coxe reddish-brown, the antenne and

legs ferruginous ; above and beneath sparsely clothed with rather long, decumbent, fulvous hairs. Head

thickly, somewhat coarsely punctate; antenne nearly half the length of the body in the male, much

shorter in the female, rather slender, joints 2 and 3 very short, equal, 4-11 moderately serrate, 4 in

both sexes very much longer than 2 and 3 united, 11 appendiculate. Prothorax convex, nearly as

long as broad, gradually narrowing from the base forwards, the sides rounded anteriorly, the posterior

portion only of the marginal carina visible from above; the hind angles long, slightly divergent, a little

incurved at the tip, sharply, obliquely carinate; the surface sparsely and moderately coarsely punctate,

deeply canaliculate behind, Llytra three times the length of the prothorax, slightly rounded at the sides,

rapidly narrowing from a little below the base, the apices narrow and conjointly rounded; somewhat

sparsely, rugosely punctate, subgranulate towards the base, the sutural stria only well defined, the others

indistinct or obsolete. Beneath thickly, the propleure sparsely, punctate, the punctures on the prosternum

502 SERRICORNIA.

and the sides of the metasternum coarse, the others moderately fine; prosternal process extended almost

in the plane of the prosternum to the very acute ante-apical tooth ; intercoxal portion of the mesosternum

declivous, slightly tuberculate at the sides anteriorly ; posterior coxal plates acutely, triangularly dilated

at their inner third.

Length 133-15, breadth 34-3? millim. (3 9.)

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

Found in plenty in Chiriqui. The females are very similar to the males, from

which they differ in their much shorter antenne. Closely allied to the Colombian

L. brunnipilis, Cand., but differing from that insect in the obliteration of the elytral

striee (the first excepted), and the less parallel elytra, as well as in coloration. Both

species have very elongate antenne in the male sex. The thorax in L. brunnipilis is

distinctly canaliculate along the middle, at the base only in L. nigricollis,

3. Ludius isthmicus.

Moderately elongate, convex, rather broad, shining ; piceous or pitchy-brown, the antennew and legs brownish ;

somewhat thickly clothed with short, decumbent, fulvo-cinereous pubescence. Head closely, somewhat

coarsely punctate; antenne not quite reaching the hind angles of the prothorax in the male, scarcely

shorter in the female, joints 2 and 3 short, subequal, 4-11 moderately widened and serrate, 11 appendi-

culate. Prothorax broader than long, gradually narrowing from a little before the base, rounded at the

sides in front, parallel behind, the posterior portion only of the marginal carina visible from above; the

hind angles long, not divergent, sharply, obliquely carinate; the surface closely and rather coarsely

punctured, the punctuation sparser on the disc, with indications of a smooth central line, obsoletely

canaliculate at the base. Elytra about two and three-fourths longer than the prothorax, slightly rounded

at the sides, narrowing from a little below the base, conjointly rounded at the apex; closely, finely,

rugulosely punctate, obsoletely striate, the sutural stria well-defined. Beneath thickly, the prosternum

sparsely and more coarsely, punctured; prosternal process extended in the plane of the prosternum to the

ante-apical tooth; intercoxal portion of the mesosternum V-shaped, gradually declivous; posterior coxal

plates broadly widened inwards, arcuately dilated opposite the insertion of the femora.

Length 153-174, breadth 43-51 millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

Five specimens. ‘The sexes are scarcely separable by external characters. This insect

somewhat resembles L. physorhinus, and is of the shape of the female of that species;

but it is much larger, the elytral punctuation is closer and finer, the striz are almost

obsolete (the first excepted), the coxal plates are less dilated at their inner third, the

antenne are much shorter in the male, and the prosternal process is not declivous.

4. Ludius subsericeus.

Ludius subsericeus, Cand. Monogr. Elat. iv. p. 809°.

Hab. Mexico, Cordova and Playa Vicente in Vera Cruz (Sallé 1).

Four specimens of this species have been examined, including the type, apparently

all males. J. subsericeus chiefly differs from its allies in its subopaque, densely

pubescent surface, densely punctured thorax, narrow shape, and pallid legs. ‘The

prosternal process is horizontal.

LUDIUS. 503

5. Ludius subopacus.

Elongate, rather narrow, subopaque; pitchy-black, piceous, or castaneous-brown, the antenne black or brown,

the legs brown or obscure testaceous; above and beneath thickly clothed with short, fine, decumbent,

yellowish-cinereous pubescence. Head closely, rather coarsely punctate; antenne extending to fully two

joints beyond the hind angles of the prothorax in the male, a little shorter in the female, rather slender,

joints 4-11 moderately serrate, 3 considerably longer than 2, the two together as long as 4, 11 appendi-

culate. Prothorax convex, as long as broad, the sides gradually converging from the base and a little

rounded in front in the male, more rounded in the female, the marginal carina visible from above towards

the base only ; the hind angles long, sharply and obliquely carinate; the surface densely, rather coarsely

punctate, with indications of a smooth central line towards the base. Elytra three times the length of

the prothorax, narrowing from a little below the base, more parallel in their basal half in the female, the

apices narrow and conjointly rounded ; rugulose and closely, finely punctate, subgranulate at the base,

the sutural stria distinct, the others faintly indicated. Beneath thickly and finely, the prosternum sparsely

and more coarsely, punctured; prosternal process extended in the plane of the prosternum to the ante-

apical tooth ; intercoxal portion of the mesosternum V-shaped, gradually declivous ; posterior coxal plates

broadly, subangularly dilated opposite the point of insertion of the femora,

Length 124-142, breadth 32-4 millim. (¢ 9.)

Hab. Guatemata, Sabo and Sinanja in Vera Paz (Champion); Panama, Volcan de

Chiriqui (Champion).

Ten specimens, one only of which is from Chiriqui. Larger and more elongate than

L. subsericeus, the thorax less densely and not so coarsely punctured, the upper surface

less opaque, the pubescence sparser, the third joint of the antenne considerably longer

than the second.

6. Ludius breviusculus. (Tab. XXII. fig. 8, ¢.)

Comparatively short, rather narrow, moderately shining; pitchy-black, the antenne and legs obscure ferru-

ginous; somewhat thickly clothed with short, decumbent, fulvous pubescence. Head closely, coarsely

punctate ; antenne extending to about two joints beyond the base of the prothorax, joints 2 and 3 very

short, equal, together not nearly so long as 4, 4-11 moderately dilated and serrate, 11 appendiculate.

Prothorax convex, slightly broader than long, the sides almost straight and very gradually converging

forwards, rounded in front, the posterior portion only of the marginal carina visible from above; the hind

angles long and sharply carinate; the surface closely, coarsely punctate, canaliculate from the middle

to the base. Elytra two and one-half times the length of the prothorax, narrowing from the middle,

conjointly rounded at the apex; rather deeply punctate-striate, the interstices almost flat and thickly,

rugulosely punctate. The prosternum coarsely and rather sparsely, the propleure coarsely and very

sparsely, and the rest of the under surface closely and finely, punctured; prosternal process extended in

the plane of the prosternum to the ante-apical tooth; intercoxal process of the metasternum V-shaped,

depressed, gradually declivous ; posterior coxal plates rather broadly widened in their inner third, becoming

narrow outwards.

Length 92, breadth 2? millim. (¢-)

Hab. Nicaraeua, Chontales (£. M. Janson).

One example. Smaller and less elongate than any of the other Central-American

species of the genus, and with the elytral strie more sharply defined. JL. breviusculus

somewhat resembles L. physorhinus, but it is much more parallel than that insect, and

has shorter elytra and the prosternal process not declivous. The second and third

joints of the antenne are very short.

504 SERRICORNIA.

7. Ludius tropicalis.

Elongate, rather broad, slightly shining; castaneous- or pitchy-brown, the legs fusco-testaceous ; somewhat

thickly clothed with short, fine, decumbent, fulvous or fulvo-cinereous pubescence. Head closely, coarsely

punctate; antenne extending very little beyond the hind angles of the prothorax, rather slender, joint 3

nearly twice as long as 2, and slightly shorter than 4, 11 appendiculate. Prothorax convex, as long as

broad, the sides subparallel to the middle and rounded thence to the apex, the anterior half of the

marginal carina not visible from above ; the hind angles long and sharply, obliquely carinate ; the surface

closely, somewhat coarsely punctate. Elytra from two and two-thirds to three times the length of the

prothorax, slightly rounded at the sides, narrowing from about the basal third, conjointly rounded at the

apex ; rugulose and closely, finely punctate, subgranulate at the base, the sutural stria distinct, the others

obsolete or faintly indicated. Beneath thickly and finely, the prosternum sparsely and more coarsely,

punctured; prosternal process extended in the plane of the prosternum to the ante-apical tooth ; intercoxal

portion of the mesosternum V-shaped, gradually declivous ; posterior coxal plates broadly and subangularly

dilated opposite the point of insertion of the femora.

Length 14-16, breadth 4-43 millim. (@.)

Hab. Guatemata, Senahu in Vera Paz (Champion); Panama, Volcan de Chiriqui

(Champion).

Two specimens: the one from Chiriqui is a female, and the other is probably a male.

The Senahu example differs from the one from Chiriqui in having the thorax less

densely punctured, and the elytra more elongate, with the striz (the sutural one excepted)

obsolete. Allied to LZ. subopacus, but separable from it, and the other species here

enumerated, by the more elongate third antennal joint, this joint nearly equalling the

fourth. JL. tropicalis is also broader and more robust than the female of L. subopacus,

in this respect approaching L. isthmicus, from which it may be known by the denser

punctuation of the upper surface, as well as by the structure of the antenne.

8. Ludius rubicundus.

Ludius rubicundus, Cand. Elat. Nouv. v. p. 58 (1898) *.

“ Brunneo-ferrugineus, pube longiuscula, fulva, minus dense vestitus; prothorace longitudine parum latiore,

trapezoideo, equaliter punctato, disco antice sub-biimpresso, angulis posticis acute dentatis*; elytris

depressis, ultra medium parallelis, punctato-striatis, basi granulatis.—Long. 14, lat. 4 millim.”

Hab. Mexico }.

Dr. Candéze has kindly forwarded his type (2) of this species for examination.

Amongst the Central-American species, LZ. rubicundus most nearly resembles Z. meri-

danus, from which it may be known by its more depressed form, the somewhat

trapezoidal thorax, the rather coarsely punctate-striate elytra, the structure of the

sterna, &c. The prosternal process is gradually declivous behind the coxe; the

intercoxal portion of the mesosternum is V-shaped and declivous; the third joint of

the antenne is short, a little longer than the second, the two together as long as the

fourth. ‘The diagnosis is insufficient for the purposes of identification.

* Evidently a mistake for “ carinatis.”

LUDIUS. 505

9. Ludius depressus. (Tab. XXII. fige. 9,¢; 9a, antenna.)

Very elongate, narrow, depressed, shining; brown, the antenne and legs brownish-testaceous ; somewhat

thickly clothed with short, decumbent, yellowish-cinereous pubescence. Head closely, rather coarsely

punctate; antennew slender, more than half the length of the body, joint 3 a little longer than 2, the two

together shorter than 4, 4-11 moderately serrate, 11 appendiculate. Prothorax slightly broader than

long, narrowed in front, sinuate at the sides behind, somewhat abruptly declivous towards the base, the

marginal carina visible from above to near the apex; the hind angles long and narrow, divergent, carinate ;

the surface coarsely, closely punctate, the punctuation becoming denser and umbilicate towards the sides,

obsoletely canaliculate along the median third of the disc. Elytra rather more than three and one-half

times the length of, and fully as wide as, the prothorax, parallel to the middle, and gradually narrowing

thence to the apex, the apices separately rounded; very finely punctate-striate, the interstices flat and

thickly, rugulosely punctate, subgranulate at the base. Beneath closely, finely punctate; prosternal

process very gradually declivous behind the cox; intercoxal portion of the mesosternum depressed,

gradually declivous, V-shaped; posterior coxal plates broadly widened in their inner third, rounded

opposite the insertion of the femora.

Length 13, breadth 33 millim. (¢.)

Hab. Costa Rica, Volcan de Irazu 6000 feet (Rogers).

One specimen. The depressed, subparallel shape of this insect gives it a very

different facies from the typical Zudii, but it possesses all the structural characters

of the genus. Dr. Candéze has examined the specimen, and he suggests an affinity

with Probothrium; it cannot, however, be included in that genus on account of the

depressed mesosternum.

10. Ludius physorhinus. (Tab. XXII. fig. 10, prosternal process.)

Probothrium physorhinus, Cand. Monogr. Elat. iv. p. 290°.

Hab. Mexico, Cordova (Sallé1); GuatemMaLa, Zapote (Champion); NICARAGUA,

Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui (Champion).

I have seen eight specimens of this species, including the type (¢); four of these,

including both sexes, are from Chiriqui. The females have the thorax broader than

the elytra, in this respect approaching the Amazonian P. amplicollis, Cand. The

intercoxal portion of the mesosternum is much less abruptly declivous than in the

typical species of Probothrium, and the insect seems to me to be best placed in Ludius.

The prosternal process is declivous behind the cox and concave between them. ‘The

punctures of the elytral stria are distinct from those of the interstices—coarse in some

specimens, and fine in others (irrespective of sex), the striae themselves being very

shallow. The third joint of the antenne is a little longer than the second.

11. Ludius setosus. (Tab. XXII. figg. 11,6; lla, antenna; 114, pro-

sternal process *.)

Aphanobius setosus, Germ. Zeitschr. fiir Ent. v. p. 183°.

Probothrium setosum, Cand. Monogr. Elat. iv. p. 294°.

Ludius innoxius, Chevr. in coll. Sallé (? Aphanodius innoxius, De}. Cat. 3rd edit. p. 104)*.

* The number 11 6 has been accidentally omitted in the lettering of the Plate.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1896. 37

506 SERRICORNIA.

Moderately elongate, broad, robust, slightly shining; brownish-castanecous, pitchy-brown or piceous, the

antenne and legs brownish or ferruginous; above and beneath somewhat thickly clothed with short,

decumbent, fulvo-cinereous pubescence. Head coarsely, closely punctate ; antennz extending to consi-

derably beyond the hind angles of the prothorax, and broadly and acutely serrate from the fourth joint,

in the male, shorter and less acutely serrate in the female, joint 3 very short, slightly longer and stouter

than 2, the two together much shorter than 4, 11 appendiculate. Prothorax convex, a little broader

than long, the sides subparallel from near the base to about the middle, and rounded and converging in

front, the anterior portion of the marginal carina not visible from above; the hind angles long and

slightly divergent, sharply, obliquely carinate; the surface coarsely and rather closely punctate, the

punctuation coarser and very sparse on the basal declivity, canaliculate behind. Elytra two and two-

thirds longer than the prothorax, a little rounded at the sides, rapidly narrowing from about the basal

third, attenuate at the apex, the sutural angles rather sharp; finely punctate-striate, the interstices flat

and somewhat thickly, rugulosely punctate. Beneath thickly and finely, the prosternum coarsely and

sparsely, punctate; intercoxal portion of the prosternum flat, the process moderately long, abruptly

and perpendicularly declivous a short distance behind the coxee, and horizontally extended thence to the

acute tooth before the tip, the upper basal portion short and triangular; intercoxal portion of the

mesosternum V-shaped, tuberculate or angularly raised on either side anteriorly ; posterior coxal plates

broadly and abruptly widened in their inner third.

Var. Rufo-castaneous, the legs and antenne flavo-ferruginous.

Length 17-20, breadth 5-6 millim. (6 @.)

Hab. Mexico, Ventanas in Durango (Hége), Chiapas (Sallé), Yucatan (Pilate, in coll.

Janson), Temax in North Yucatan (Gaumer); Honpuras (Mus. Brit.) ; GUATEMALA

(coll. Janson), Escuintla (Conradt); Panama, Volcan de Chiriqui (Champion). —

CoLoMBIA!?; VENEZUELA.

Of this species we have received eight specimens from within our limits, all males

but one, the latter being from Chiriqui. The variety is represented by a single

example from Escuintla. The type (¢) is contained in the Janson collection, and

Candéze’s description was made from it. The form of the mesosternum is very

different from that of Probothrium pubescens, P. velutinum, &c., and the insect is

much better placed in Zudius. The single (¢) example from Durango is smaller

and less robust than the others, and has the prosternum more closely punctured.

L. setosus closely resembles L. texanus, Lec., and the North-American insect incorrectly

identified by Leconte and Candéze with L. hepaticus (Germ.)*, from both of which it

may be immediately separated by the form of the prosternal process: viewed in profile,

this piece (instead of very gradually sloping downwards behind the coxe to the ante-

apical tooth, as in the N.-American insects) is abruptly and perpendicularly declivous

a little behind the coxe, and horizontally extended thence to the ante-apical tooth ft.

The specimens of LZ. hepaticus from Mexico and Guatemala, mentioned by Candéze

(Monogr. Elat. iv. p. 307), one of which is contained in the Janson collection, belong

here. A male from Yucatan is figured.

* ZL. hepaticus (Germ.), from Brazil, the types of which are contained in the Janson collection, is a

Probothrium, very nearly allied to P. rufivellum, Cand. Apart from the nearly vertical intercoxal portion of the

mesosternum, it may be known from the North-American species, and L. setosus also, by the acutely, triangularly

dilated posterior coxal plates, the more coarsely punctured elytral striee, the more attenuate elytra, &c.

t Specimens of a species very closely allied to this, labelled “California,” are mixed with the series of

LUDIUS.—ORTHOSTETHUS. 507

12. Ludius meridanus.

Aphanobius meridanus, Pilate, in litt.

Moderately elongate, broad, the male narrower, robust, slightly shining ; rufo- or piceo-castaneous, the antenne

and legs ferruginous or flavo-ferruginous; above and beneath rather sparsely clothed with short,

decumbent, yellowish-brown pubescence. Head closely, coarsely punctate, slightly depressed along the

middle of the front in the male; antenne extending to considerably beyond the hind angles of the

prothorax in the male, shorter in the female, the joints from the fourth moderately dilated and serrate,

3 short, slightly longer than 2, the two together in the male shorter than 4, 11 appendiculate. Prothorax

convex, a little broader than long, more transverse in the female, the sides almost straight, and very

gradually converging to near the apex, and rounded in front, in the male, more rounded in the female,

the anterior portion of the marginal carina not visible from above; the hind angles long, not divergent,

sharply, obliquely carrinate ; the surface thickly, coarsely punctate, canaliculate behind. Elytra nearly

three times the length of the prothorax, a little rounded at the sides, narrowing from about the middle,

the apices narrow and conjointly rounded ; finely punctate-striate, the interstices almost flat, rugulose,

and thickly punctured, slightly granulate towards the base in the male. Beneath finely and rather

sparsely, the prosternum very coarsely, punctate; intercoxal portion of the prosternum flat, the process

abruptly, perpendicularly declivous a little behind the cox, and horizontally extended thence to the

ante-apical tooth; intercoxal portion of the mesosternum V-shaped, angularly raised on either side

anteriorly ; posterior coxal plates moderately widened in their inner third.

Length 14-174, breadth 43-53 millim. (¢ 2.)

Hab. Mexico, Yucatan (Pilate, in coll. Janson).

One pair, the female being very much larger and broader than the male; the latter

is labelled with the name I have adopted. In the sternal characters this species

agrees with ZL. setosus, from which it differs in the less dilated antenne in both sexes,

the joints being much less acutely serrate in the male; it is also less elongate than

that insect, and the female has more parallel elytra. More convex than L. rubicundus,

Cand., the prosternal process differently formed, the elytra more finely punctate-

striate, &c.

ORTHOSTETHUS.

Aphanobius, Germar, Zeitschr. fiir Ent. v. p. 183 (1844) (part.); Leconte, Trans. Am. Phil. Soc.

new ser. x. p. 492 (nec Eschscholtz). .

Orthostethus, Lacordaire, Gen. Col. iv. p. 207 (1857); Candéze, Monogr. Elat. iv. p. 313.

An American genus containing a few species of large size, all of which occur within

L. tecanus in the Janson collection. As this insect is certain to be confused with ZL. setosus, it is advisable to

point out the differences, and propose a name for the species.

Ludius peninsularis, sp. n.

Closely allied to LZ. setosus, and differing as follows :—The third joint of the antenne relatively longer, in some

specimens twice as long as the second, the two together much shorter than 4; the elytra more flattened

on the disc posteriorly; the intercoxal portion of the prosternum concave, the process abruptly and

perpendicularly declivous at a little before the middle (forming an acute tooth, if viewed in profile), and

horizontally extended thence to the ante-apical tooth. Length 16-18 millim. (¢ 2.)

Dr. Horn informs me that he possesses examples of this species from Cape San Lucas, Lower California, one

of which he has kindly forwarded ; it is probable that those in the Janson collection are from the same region.

3T2

508 SERRICORNIA.

our limits, The two now added differ considerably from the known forms, one being

almost glabrous, and the other having an excavate front. ‘These insects are found in

rotten wood or under bark.

a. Front flattened or feebly convex.

a'. Body moderately convex; punctuation close, that of the prothorax coarse.

a. Body brown or brownish-black; pubescence fulvo- or flavo-cinereous,

conspicuous.

a. Prothorax as long as broad, the sides subparallel at their median third

in both sexes . see sew ww es see ee infuscatus.

bo", Prothorax broader than long, trapezoidal in the male, rounded at the

sidesin the female . . . . . . . . . ee) piceus.

b". Body black ; pubescence very sparse and partaking of the ground-colour ;

prothorax trapezoidal in the male, rounded at the sides in the female. . corvinus.

b'. Body flattened above, almost glabrous, deep black, highly polished, and very

sparsely, minutely punctate . . . . 2. 2. 2 es » . . « . glabratus.

b. Front concave; body moderately convex, brownish-castaneous or blackish- brown ;

pubescence fulvo- or yellowish-cinereous, conspicuous.

c’, Antenne serrateinthe male. . . . . . . 1. 6 . ee ew ee ee Cavifrons.

d'. Antenne pectinatein the male. . 2. 2. 2. 1. 1 ee ee ee eee pectinicornis.

1. Orthostethus infuscatus.

Aphanobius infuscatus, Germ. Zeitschr. fiir Ent. v. p. 183°; Lec. Trans. Am. Phil. Soc. new ser. x.

p. 492°.

Orthostethus infuscatus, Lacord. Gen. Col. iv. p. 207°; Cand. Monogr. Elat. iv. p. 314°.

Pristilophus sordidus, Melsh. Proc. Acad. Phil. ii. p. 216’.

2. Orthostethus prefectus, Cand. Monogr. Elat. iv. p. 315°.

Hab. Norra America!, Southern States? 4, Alabama ®.—Mexico ! 4, Cordova, Tuxtla,

Santecomapan (Sallé); British Honpuras (coll. Janson); GuaTEMALA, San Juan in

Vera Paz, El Tumbador, Las Mercedes, San Isidro, Volcan de Atitlan, Zapote

(Champion), Kl Rincon in San Marcos (Richardson), Panzos, Escuintla (Conradt) ;

Nicaragua, Chontales (Belt, EL. M. Janson); Panama, Bugaba, Volcan de Chiriqui

(Champion).—SovutH America, Brazil °,

Widely distributed in Tropical America, extending northwards into the Southern

United States. O. prafectus, of which I have four specimens before me (three

determined by Candéze himself), is based upon large females of this species, the

Brazilian examples being inseparable from others of the same size and sex from North

America. ‘The thorax is as long as broad in both sexes, with the sides subparallel in

the male, more rounded anteriorly in the female.

ORTHOSTETHUS. . 509

2. Orthostethus piceus. (Tab. XXII. figg. 18,9; 13a, genitalia.)

Orthostethus piceus, Cand. Monogr. Elat. iv. p. 315, t. 4. figg. 10, 10a, 6’.

Hab. Mexico, Cordova (Sallé1); British Honpuras (coll. Janson); GUATEMALA,

Capetillo (Champion); Panama, Bugaba, Volcan de Chiriqui (Champion).

I have seen eleven examples of this species, five of which are from Chiriqui, including

both sexes. ‘The males have the thorax rapidly narrowing from the base, the sides”

being rounded in the females. The shorter and less parallel thorax distinguishes it

from either sex of O. infuscatus; the elytra are less acuminate than in that species,

this being especially noticeable in the females. A specimen from Chiriqui is figured.

3. Orthostethus corvinus. (Tab. XXII. figg. 12,4; 124, genitalia.)

Aphanobius corvinus, Germ. Zeitschr. fiir Ent. v. p. 183°.

Orthostethus corvinus, Lacord. Gen. iv. p. 207, nota®; Cand. Monogr. iv. p. 816°; Steinh. Col.

Hefte, xiv. p. 183%.

Hab. Mexico (Sallé); Guatemaa (coll. Janson), Santa Cruz and San Gerdnimo in

Vera Paz, Totonicapam 10,000 feet, Quiché Mts. 7000 to 9000 feet, Cerro Zunil

(Champion), Tecpan (Conradt); Nicaragua, Chontales (Belt, . M. Janson); Costa

Rica (coll. Janson).—CoLomBia!4. ;

Not uncommon in the mountainous districts of Central America, all the specimens

captured by myself having been found at elevations of 4000 feet and upwards.

Germar’s type is a female (not a male, as Candéze supposed); the males are very

much smaller, and they have the thorax much less rounded at the sides and rapidly

converging from the base, and the antenne more elongate. 0. corvinus may be easily

distinguished from its allies by its deep black colour and the very sparse, fine, blackish

pubescence. ‘The specimens before me vary from 18—35 millim. in length, and trom

5-9 millim. in breadth. An example from Cerro Zunil is figured.

4, Orthostethus glabratus. (Tab. XXII. fig. 15, 2.)

Elongate, broad, flattened above, very shining, deep black, almost glabrous, the head, the apex of the elytra,

and the under surface with a few very fine, short, blackish hairs. Head moderately convex, sparsely,

finely punctate ; antenne short, not nearly reaching the hind angles of the prothorax, the joints from the

fourth dilated and strongly serrate, 3 as long as 4. Prothorax as long as broad, gradually narrowing

from the base forwards, the sides rounded in front and feebly sinuate towards the base and apex; the

hind angles long, stout, and divergent, slightly incurved at the tip, strongly carinate; the surface with

widely scattered fine punctures, which become very minute on the basal half of the disc, a small space

down the middle behind impunctate. lytra three times the length of the prothorax, rapidly narrowing

from a little below the base, the base broadly depressed near the shoulders, the apices slightly dehiscent,

the sutural angles mucronate; sparsely, minutely punctate, without trace of strix. Beneath very sparsely

punctate, the punctures coarse on the prosternum, those on the other parts excessively fine; prosternal

process very long and stout; mesosternum with the sides of the cavity much thickened and greatly raised,

510 SERRICORNIA.

horizontal, V-shaped; metasternum broad between the middle cox, gradually raised forwards to meet

the protuberant mesosternum, concave along the median line.

Length 29, breadth 74 millim. ( 2.)

Hab. Mexico, Amula in Guerrero 6000 feet (H. H. Smith).

One example only of this interesting novelty has been received. Allied to

O. corvinus, but differing from it in the almost glabrous, highly polished, and

flattened upper surface, the very sparse, minute punctuation, the longer thorax, and

the greatly developed mesosternum. In this last-mentioned character it differs from

all the other species of the genus. O. glabratus somewhat resembles the North-

American Melanactes piceus, De Geer, but differs from that insect in having double,

widely separated prosternal sutures, strongly triangularly dilated posterior coxal plates,

&c., as well as in its much more elongate shape.

5. Orthostethus cavifrons. (Tab. XXII. fig. 14, ¢.)

Elongate, robust, moderately shining; obscure brownish-castaneous, the prothorax with a large indeterminate

patch on the disc, widening anteriorly, piceous or pitchy-black; above and beneath thickly clothed with

short, decumbent, fulvo-cinereous hairs. Head very broadly excavate along the middle (the sides of the

front appearing raised), coarsely, closely punctate, the eyes very large ; antenne about reaching the hind

angles of the prothorax in the male, shorter in the female, the joints from the fourth dilated and strongly

serrate, 3 slightly shorter than 4. Prothorax a little longer than broad, with the sides subparallel or very

gradually converging in their median third, rounded in front, and feebly sinuate behind; the hind angles

very long and strongly divergent, slightly incurved at the tip, and finely carinate; the surface thickly,

coarsely punctate, the punctuation becoming coarser, denser, and umbilicate at the sides in front, and

sparser along the middle of the disc, down the centre of which is an indistinct smooth line. Elytra three

times the length of the prothorax, rapidly narrowing from a little below the base, attenuate at the apex,

the sutural angles sharply mucronate; closely, finely, rugulosely punctate, and with indications of faint,

longitudinal furrows. Beneath closely and finely, the prosternum coarsely and sparsely, punctured ;

mesosternum raised, horizontal, V-shaped.

Length 234-28, breadth 63-73 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

Seven examples. Closely allied to O. infuscatus, but differing from that insect in

the broadly excavate front in both sexes; it is of the size of the smallest specimens of

that species. The frontal excavation is very broad, and extends backwards to the

vertex.

6. Orthostethus pectinicornis. (Tab. XXII. fige. 16,¢; 16a, antenna.)

3. Very elongate, broad, shining; black, the elytra brownish-black, the under surface pitchy-brown ; some-

what thickly clothed with short, fine, yellowish-cinereous pubescence. Head‘closely, coarsely punctate,

broadly excavate in front; antenne extending to far beyond the hind angles of the prothorax, joints

2 and 3 very short, subequal, 4 about three times the length of 3, 4-11 pectinate. Prothorax convex,

nearly as long as broad, trapezoidal, the sides a little rounded in front; the hind angles long, incurved at

the tip, sharply carinate; the surface closely, coarsely punctate, the punctuation more scattered on the

disc, down the median third of which is a smooth space. Elytra about three and one-fifth times the

length of the prothorax, and distinctly wider than it, gradually narrowing from the middle, and conjointly

rounded at the apex, the sutural angles sharp; closely, confusedly punctate, without trace of strie.

ORTHOSTETHUS.—AGRIOTES. 511

Beneath thickly and finely, the prosternum coarsely and sparsely, punctured ; mesosternum subhorizontal,

moderately raised, V-shaped.

Length 234, breadth 64 millim.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

One worn example only of this peculiar species has been received. Differs from

all the other known members of the genus in the pectinate antenne in the male; it

also has the sides of the mesosternum only moderately raised, and the elytra more

parellel than usual. The excavation of the front does not extend to the vertex, as

in O. cavifrons.

Group AGRIOTINI.

AGRIOTES.

Agriotes, Eschscholtz, in Thon’s Archiv, ii. 1, p. 34 (1829) ; Candéze, Monogr. Elat. iv. p. 358 ;

Leconte, Trans. Am. Ent. Soc. xii. p. 15 (1884).

Ectinus, Eschscholtz, loc. cit. (part.).

Cataphagus, Stephens, Ill. Brit. Ent., Mandib. ii. p. 185.

This well-known genus contains about 120 described species, two-thirds of which

are from the Old World. Eighteen inhabit America north of Mexico, and a similar

number have been recorded from our region, whence many other species are now added,

chiefly from Mexico or Guatemala. <Agriotes is apparently replaced in South America

and the Antilles* by Cosmesus, under which name Candéze has included various

heterogeneous forms f, and other allied genera. ‘The Central-American species—many

of which are more brightly coloured than their northern allies, or have more definite

markings—are very local, few of them being common even to Mexico and Guatemala.

They all belong to Candéze’s Section I.(A), in which the hind coxal plates are very

little widened inwards. Many of them are variable in colour (A. tnsolitus and others

differing sexually in this respect), or vary in the colour of the pubescence, the latter

sometimes being so arranged as to form spots on the thorax, or lines or vittee upon the

elytra. A. hirsutus differs from all the others in the semierect pubescence of the

upper surface. These insects are chiefly found at the roots of grass or low plants, often

upon the sandy banks of streams; in sunny weather they may frequently be beaten

from herbage.

The following key is added to assist in the identification of the Central-American

forms; but as the chief characters upon which it is based gradually merge one into the

other, and are in some cases subject to variation in the same species, it must be used

with caution.

* Agriotes australis, Fairm., from Punta Arenas, evidently belongs to a different genus; A. guadulpensis,

Cand., from Guadeloupe I., is probably a Dolopius.

+ Some of the species of his Section IT., such as the Colombian C. maurus and C. brevis, Cand., can hardly

be retained in it.

512 SERRICORNIA.

a. Antenne with the third joint as long as, or longer than, the second.

a’. Hind angles of the prothorax carinate *.

a. Marginal carina of the prothorax entire f.

a". Prothorax more or less elongate, considerably longer than broad.

a’. Prothorax rather sparsely, uniformly pubescent; elytra with lines

or stripes of paler pubescence.

a’, Elytra with more or less distinct alternate lines of light and dark

pubescence.

a’. Prothorax rufous, with deep basal incisures and long, acute

hind angles; punctuation sparse. . . . . oe

6°. Prothorax black, feebly incised at the base, and with shorter

hind angles ; punctuation close . Loe eee

6°. Elytra with the suture and a narrow submarginl vitta cinereo-

pubescent; not vittate. . . . .

*. Elytra with the suture and a broad discoidal vitta a yellowish.

cinereous pubescent ; vittate . .

6°. Prothorax thickly pubescent, with two large blackish- pubescent

marks on the anterior part of the disc {; the elytra with the

suture and a submarginal vitta cinereo- or yellowish-pubescent

c’, Prothorax and elytra densely, uniformly pubescent (the elytra

sometimes with a narrow darker vitta on the disc in A. fulvescens).

d’. Elytra moderately elongate.

is Elytra rather coarsely punctate-striate

. Elytra very finely punctate-striate

tytn very elongate. . . . — ees toe

d’. " Prothorax densely pubescent, with two broad black vittze on the

dise clothed with fuscous or blackish hairs; the elytra with the

suture and a narrow submarginal stripe cinereo-pubescent .

e’. Prothorax and elytra rather sparsely, uniformly pubescent.

f’. Black, the metasternum and abdomen ferruginous an

g. Black, the prothorax and propleure rufous; the pubescence

above and beneath partaking of the ground-colour .

h’. Black, the prothorax and propleuree sometimes obscure rufous ;

the pubescence of the under surface yellowish-white .

6". Prothorax transverse or not longer than broad (slightly longer in

A. binotatus).

J*. Body fusiform.

a. Elytra not vittate, uniformly pubescent ; hind angles of the pro-

thorax very long, acute, and divergent

sublineatus.

linetpennis.

hilaris. lL’

virgatus.

. t

pulcherrimus.

fulvescens.

castaneipennis.

pexus.

teniatus.

bicolor.

miniatocollis.

pectoralis.

acutus.

* Very finely or indistinctly in 4. Sulvescens, A. teniatus, A. umabilis, A. scapularis, A

A. trilineatus.

. quadrivittatus, and

+ Interrupted at the middle in some specimens of A. hilaris, A. pulcherrimus, A. fulvescens, A. pexus,

A. tematus, and A. amabilis.

¢ Indistinct in var. £.

AGRIOTES.

Jj. Elytra vittate (except in A. lateralis, var.) ; hind angles of the

prothorax less produced.

e’. Prothorax usually with a black median vitta or spot, uniformly

pubescent oe ee +

f°. Prothorax with two curved vittz on the disc, which are

clothed with darker pubescence . oe

g’. Body oblong-oval or subfusiform; elytra rather short, with the suture

and a submarginal vitta, or the suture only, cinereo-pubescent.

k°, Hind angles of the prothorax moderately produced, not diver-

gent; prothorax black, or rufous with a black discoidal patch ;

elytra usually vittate . . . ° oe

. Hind angles of the prothorax longer and divergent.

g’. Prothorax (in typical form) flavo-ferruginous, with a black

patch in front, the latter narrowing posteriorly.

a’. Elytra not vittate, the suture cinereo-pubescent ; hind

angles of the prothorax very long and strongly divergent,

slightly incurved at the tip . Loe ee

6”. Elytra (in typical form) vittate, the suture and a submarginal

vitta cinereo-pubescent ; hind angles of the prothorax more

acute and moderately divergent

h®. Prothorax (in typical form) flavo-ferruginous, with a trans-

verse black patch or two spots before the middle ; elytra

comparatively short and attenuate, usually vittate .

i°, Prothorax rufo-ferruginous, with an indistinct darker patch on

the disc formed by brownish hairs; elytra narrower and

more parallel a

h'. Body elongate, brown; elytra long, uniformly pubescent; pro-

thorax with two indistinct darker marks on the disc .

b". Marginal carina of the prothorax partly interrupted or incomplete ;

elytra elongate; body unicolorous, brown.

cl, Prothorax longer than broad.

i‘. Basal incisures deep; punctuation sparse and fine .

j'. Basal incisures shallow; punctuation closer and coarser

d', Prothorax transverse .

b'. Hind angles of the prothorax not carinate.

c", Marginal carina of the prothorax entire; prothorax transverse or about

as long as broad.

é", Prothorax very densely punctured ; elytra sometimes with the suture

and sides clothed with paler pubescence: body moderately broad,

the elytra rather short Soe eee ee

f'". Prothorax more sparsely punctured ; elytra with the suture and sides

clothed with paler pubescence: body narrow, the elytra rather short.

g''. Prothorax sparsely and finely punctured.

k, Elytra (¢) with the suture and sides clothed with paler pubes-

cence, submetallic in some specimens: length about 6-7} millim.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1896.

513

lateralis. |

trivittatus.

notatus,

amabilis.

scapularis.

quadrivittatus, (_

trilineatus.

binotatus.

vaccinus, |(~

longipennis.

curticollis.

quadraticallis.

cinereiventris,

insolitus.

514 SERRICORNIA.

i‘, Elytra (in typical form) with alternate lines of light and dark

pubescence: length 5-6 millim. . . . . . 2. . se e

d", Marginal carina of the prothorax incomplete or interrupted.

hi’, Pubescence of the upper surface decumbent.

m‘, Prothorax very elongate, much longer than broad; second and

fourth elytral interstices with a line of darker pubescence

n‘. Prothorax about as long as or a little longer than broad.

m’. Elytra elongate.

j°. Prothorax testaceous, with a black cruciform patch; elytra

usually with the suture and a submarginal stripe of paler

pubescence. . 2. 2 1 1 ee eee ee

k*, Prothorax unicolorous or without definite markings, moderately

closely punctured : pubescence uniform.

ce’, Basal incisures of the prothorax deep: body moderately

broad. ww wk ke ee eee

da’. Basal incisures of the prothorax shallow: body narrow. .

n°, Elytra moderately elongate or rather short.

i’. Elytral pubescence not paler along the suture and at the sides.

e’. Prothorax closely and rather finely punctured .

jf’. Prothorax densely and more coarsely punctured

m°. Elytral pubescence usually paler along the suture and at the

sides; prothorax dull, very densely punctured; elytra

attenuate 2. 6. 6 1 1 ee ee ew we

#", Pubescence of the upper surface semierect . .

6. Antenne with the third joint slightly shorter than the second ; “hind angles

of the prothorax not carinate.

ce’. Body oblong- or elongate-oval ; pubescence moderately close; prothorax

densely punctured, with the hind angles divergent and the marginal

carina usually interrupted; elytra with the suture and sides clothed with

paler pubescence.

e", Elytral interstices not rougher at the base .

jf". Elytral interstices rougher at the base

d’, Body narrow, subparallel, brown; pubescence sparse and uniform; pro-

thorax with the hind angles not divergent and the marginal carina

obliterated anteriorly : length 53 millim. .

1. Agriotes sublineatus. (Tab. XXII. fig. 17.)

alternus. V

quadrilineatus.

cruciatus.

incallidus.

monticola.

mexicanus.

guatemalensis.

opacicollis, “

hirsutus.

mixtus.

pauxillus.

angustatus.

Elongate, convex, shining; black, the prothorax and propleure obscure rufous; the head and prothorax

sparsely, and the scutellum, elytra, and under surface thickly, pubescent, the pubescence yellowish-

cinereous, that on the outer alternate elytral interstices blackish, the secoud and fourth interstices to the

middle, and the third also for some distance, with blackish pubescence. Head rather sparsely, finely

punctate; antenne not quite reaching the hind angles of the prothorax, joint 3 longer than 2, as long

as, but narrower than, 4. Prothorax considerably longer than broad, rounded at the sides, the latter

converging in front and sinuate behind; the hind angles long, stout, acute, and divergent, sharply

carinate ; the surface sparsely, finely punctate, deeply canaliculate behind, and with a smooth median

line; the base with a short deep incisure on either side; the marginal carina distinct throughout.

AGRIOTES. 515

Elytra two and three-fourths the length of the prothorax, slightly rounded at the sides, narrowing from a

little below the base, the apices narrow; finely and shallowly punctate-striate, the striee deeply impressed

on the basal declivity, the interstices flat and closely, finely punctate. Beneath densely, the prosternum

and propleuree rather sparsely, punctured. Hind coxal plates a little widened in their inner third.

Length 114, breadth 3 millim.

Hab. Costa Rica (Van Patten).

One example, probably a female. Larger and more elongate than A. hilaris; the

third joint of the antenne longer; the elytra more attenuate, more shallowly striate,

and with alternate lines of light and dark pubescence, these becoming well defined

towards the sides; the thorax more sparsely punctured, more deeply canaliculate

behind, and with much more sharply carinate hind angles. From A. lineipennis, which

has somewhat similarly-coloured elytral pubescence, the present insect may be known

by the long, acute, divergent hind angles of the thorax, the surface of which is much

more sparsely punctured, and the more acuminate elytra.

2. Agriotes lineipennis, (Tab. XXII. figg. 18, ¢; 18a, antenna.)

Agriotes lineipennis, Cand. Monogr. Elat. iv. p. 371°.

Hab. Mexico (coll. Janson, ex Laferté 1).

Unique in the Laferté collection. Closely allied to A. décolor, but differing from it

in the relatively longer third joint of the antenne, and the much more densely punc-

tured thorax, which is also less deeply canaliculate behind, and has the base less deeply

incised; also in having blackish-brown pubescence on the alternate interstices of the

elytra, that on the rest of the surface being yellowish. The third joint of the antennz

is as long as; but narrower than, the fourth.

3. Agriotes hilaris. (Tab. XXII. fig. 19.)

Agriotes hilaris, Cand. Monogr. Elat. iv. p. 369 ‘

Hab. Muxico (coll. Janson, ex Laferté*), Tepansacualco in Oaxaca (Sallé); GuaTE-

mMALA, Purula in Vera Paz (Champion).

Found in plenty at Purula. Varies in colour from black to brown; the thorax is

rufous in the Mexican specimens, but in many of those from Purula, where also the

typical form occurred, it has a large black patch on the disc, or 1s entirely black. The

elytra have the suture and a narrow line on the outer part of the disc—sometimes

abbreviated or obsolete—whitish-pubescent, the pubescence on the other parts being

fuscous or blackish-brown. The pubescence on the under surface is cinereous or

yellowish-cinereous. Some of the Guatemalan examples have the thorax a little more

elongate and more coarsely punctured than the Mexican types.

A Mexican specimen is figured.

3U 2

516 SERRICORNIA.

4, Agriotes virgatus. (Tab. XXII. fig. 20, var.)

Agriotes virgatus, Cand. Monogr. Elat. iv. p. 368°.

Hab. Mexico, Toxpam, Cordova, and Santecomapan in Vera Cruz, Oaxaca (Sallé'),

Almolonga, Juquila (Hége), Atoyac in Vera Cruz (H. H. Smith).

Not uncommon in Mexico, whence we have received a long series. The form with

the thorax rufous or flavo-ferruginous (var. 6 of Candéze) is much more abundant than

the type. A. virgatus may be known from most of its allies by the long, oblique,

broad, yellowish vitta on each elytron, the vitte and the suture being clothed with

pallid pubescence; the thorax is longer than broad. A specimen of the var. 6 from

Cordova is figured.

5. Agriotes pulcherrimus. (Tab. XXII. figg. 21, ¢; 22, var. ligatus; 23, var. B.)

Agriotes pulcherrimus, Cand. Monogr. Elat. iv. p. 864°.

Hab. Mexico, Volcan de San Martin}, Tuxtla, Juquila (Sal/é), Almolonga, Cordova

(Hoge); GuatemaLa, Purula in Vera Paz (Champion).

Var. a. The sutural and discoidal stripes of yellowish-cinereous pubescence narrower and more sharply

defined. (Fig. 23.)

Agriotes ligatus, Cand. Compt. Rend. Soc. Ent. Belg. 1878, p. exciii (Elat. Nouv. ii. p. 48) *.

Hab. Mexico (coll. Janson); Guaremata? (Sallé; coll. Janson).

Var. 8. The prothorax obscure rufous or black, with the two fusco-pubescent marks coalescent and extending

downwards on the middle of the disc so as to form a subcruciform patch; the submarginal cinereo-

pubescent elytral vittee narrow and confluent before the apex. (Fig. 23.)

Hab, Guatemata, Coban in Vera Paz (Conradt).

With a long series of specimens it is not possible to separate A. ligatus from A. pul-

cherrimus, the two insects differing only in the relative width of the stripes of pallid

pubescence on the elytra. In the numerous examples from Purula, as well as in some

of those from Mexico, these stripes are even broader than in the type (¢) of

A, pulcherrimus ; and in one of the two specimens from Tuxtla they are very little

wider than in A. ligatus. The insect varies in colour from black to brown. The

thorax in some specimens is ferruginous, with a broad transverse black patch before

the middle, which is divided along the centre and narrowed outwards, in others black

or rufous; it is densely, finely punctate, with two large blackish-brown or fusco-

pubescent spots before the middle, and the rest of the rather coarse dense pubescence

yellow or yellowish-cinereous. The suture and a stripe on the outer part of the disc

of the elytra are clothed with yellowish or whitish pubescence, the rest of the pubes-

cence being fuscous or blackish-brown: in some specimens these stripes become so

extended as to leave a very narrow fusco-pubescent space on the disc of each elytron.

The pubescence on the under surface is entirely yellowish-cinereous. In the two

AGRIOTES. 517

specimens of the var. 8 from Coban the marks on the thorax are united and form a

subcruciform patch. We figure three specimens: the type of A. pulcherrimus from

the Sallé collection ; one of the types of the var. digatus from the Candéze collection ;

and an example of the var. 8 from Coban.

6. Agriotes fulvescens.

Agriotes fulvescens, Cand. Monogr. Elat. iv. p. 365°.

Agriotes cervinus, Deyr. in coll. Sallé.

Hab. Mexico (coll. Janson 1), Juquila (Sallé).

This insect is compared by Candéze with A. pexus, instead of with A. pulcherrimus,

of which it is probably a variety with the fusco-pubescent spots on the thorax oblite-

rated. In several of the specimens there isa fusco-pubescent stripe on the disc of each

elytron, as wide as in some of the varieties of A. pulcherrimus. The thorax usually

has a large black patch on the disc before the middle.

7. Agriotes castaneipennis. (Tab. XXII. fig. 24.)

Elongate, rather convex, shining ; piceous, the elytra castaneous, the mouth-parts (the tips of the mandibles

excepted) ferruginous, the basal joints of the antenne and the legs testaceous; thickly pubescent, the

pubescence fulvous above, paler at the sides of the prothorax behind, and pale greyish beneath, the hairs

on the disc of the prothorax transversely combed inwards. Head densely, finely punctate; antenne

scarcely reaching the hind angles of the prothorax, joints 2 and 3 equal, 3 much shorter than 4. Pro-

thorax much longer than broad, subcylindrical, the sides a little rounded and converging anteriorly and

feebly sinuate behind; the hind angles rather stout, moderately long and slightly divergent, very finely

carinate ; the surface densely, finely punctate, deeply canaliculate behind, and with a narrow smooth

space along the middle; the base with a short incisure on either side; the marginal carina entire.

Elytra two and two-thirds the length of the prothorax, and equalling it in width, a little rounded at the

sides, gradually narrowing from about the basal third, the apices rather narrow and conjointly rounded ;

very finely punctate-striate, the punctures somewhat widely separated and very little coarser than those

of the interstices, the latter flat and thickly, minutely punctured. Beneath densely, finely punctate, the

prosternum more sparsely punctured. Hind coxal plates a little widened in their inner third.

Length 11}, breadth 24 millim.

Hab. Guatemata, Zapote (Champion).

One specimen. Less elongate and more parallel than A. perus, the elytra much

shorter and narrower, and very finely punctate-striate, the hind angles of the thorax

feebly divergent, &c. From A. fulvescens it may be known by its less densely punc-

tured and longer thorax, the hind angles of which are shorter, stouter, less acute, and

scarcely divergent, and the median channel deeper, the narrower, very finely striate

elytra, the more shining surface, &c.

8. Agriotes pexus. (Jab. XXII. fig. 25.)

Agriotes pecus, Cand. Monogr. Elat. iv. p. 865 '.

Hab. Mexico, Jacale (Sal/é1); Guatemana, Purula in Vera Paz (Champion).

I have seen seven specimens of this species—three from Mexico, including the

518 SERRICORNIA.

type (¢), and four from Guatemala. It is black, with the elytra flavo-ferruginous or

castaneous. The pubescence is dense and rather coarse, fulvous or fulvo-cinereous

above, in some specimens whiter at the base or hind angles of the thorax and on the

scutellum, and cinereous or yellowish-cinereous beneath. The elytra are more elongate

and more acuminate at the tip than in most of the allied forms; they are consider-

ably wider than the thorax. The thoracic pubescence has the appearance of being

transversely combed inwards on the disc. The type is figured.

9. Agriotes teniatus. (Tab. XXII. fig. 26, ¢.)

Agriotes teniatus, Cand. Monogr. Elat. iv. p. 364°.

Hab. Mexico, Etla, Parada, Capulalpam, Yolos (Sadlé), Oaxaca (coll. Janson),

Cordova, Almolonga, Playa Vicente, Tapachula in Chiapas (Hoge); GuaTEMALA

(coll. Janson 1), Aceytuno (Salvin), Zapote (Champion).

Found in numbers by myself at Zapote. Mexican specimens are considerably

larger than those from Guatemala, irrespective of sex. Easily distinguishable from its

allies by the two broad black vitte on the thorax, which in some specimens are almost

coalescent, so as to form a large discoidal patch, the rest of the thorax and the margins

of the propleure being rufous or ferruginous. The thorax is densely, rather coarsely

punctate, with a smooth slightly raised median line; thickly pubescent, the pubescence

on the rufous portion being yellowish-cinereous and that on the vitte fuscous or blackish-

brown. ‘The elytra have the suture and a narrow line on the outer part of the disc

clothed with whitish or yellowish-cinereous pubescence, that on the other parts being

fuscous. ‘The pubescence on the head and scutellum is whitish. The type is a small

male. A. teniatus is smallet and narrower than A. pulcherrimus, and has a differently

coloured, more coarsely punctured thorax. A specimen from Cordova is figured.

10. Agriotes bicolor. (Tab. XXII. fig. 27.)

Agriotes bicolor, Cand. Monogr. Elat. iv. p. 370°.

Hab. Mexico (coll. Janson, ex Laferté').

The only specimens I have seen of this species are the two types in the Laferté

collection. It is deep black in colour and shining, with the metasternum and abdomen

rufo-ferruginous, and the legs and the basal joint of the antenne testaceous; the

pubescence is fine and rather sparse, yellowish-cinereous on the scutellum and

partaking of the ground-colour on the rest of the surface. The basal incisures of the

thorax are deep. This insect closely resembles the black forms of Hemicrepidius

instabilis.

AGRIOTES. 519

11. Agriotes miniatocollis, (lab. XXII. fig. 28, 3.)

Agriotes miniatocollis, Chevr. Coll. Mex. cent. ii. fase. 8, no. 199 (1835) '.

Agriotes miniaticollis, Cand. Monogr. Elat. iv. p. 369 ?.

fab. Mexico! 2, Orizaba (Sallé), Cerro de Plumas (Hége).

This species is black and shining, with the thorax and propleure rufous, the pubes-

cence very fine and uniform, and partaking of the ground-colour, that on the thorax

sparse. ‘The hind coxal plates are a little widened in their inner third.

12. Agriotes pectoralis.

Hlongate, convex, shining ; deep black, the prothorax, prosternum, and propleure (except at the base) obscure

rufous in one example; the antenne and legs black or brownish-black, the basal joint of the former

pitchy-red; above somewhat thickly clothed with blackish pubescence; the metasternum and abdomen

densely, and the prosternum and propleure sparsely, clothed with yellowish-white pubescence. Head

finely, moderately closely punctate ; antennw reaching the hind angles of the prothorax, joints 2 and 3

subequal, 3 very little shorter than 4. Prothorax much longer than broad, subcylindrical, the sides

moderately rounded and converging anteriorly, and sinuate behind; the hind angles long, stout, acute,

and divergent, carinate; the surface closely, very finely punctate, canaliculate from the middle to the

base, and with a smooth median line ; the base with a short incisure on either side; the marginal carina

distinct throughout. Elytra two and one-half times the length of the prothorax, slightly rounded at the

sides, and narrowing from a little below the base, the apices narrow; finely and very shallowly punctate-

striate, the strize deeply impressed on the basal declivity, the interstices closely and very finely punctured.

Beneath densely and finely, the prosternum and propleurze more sparsely, punctate. Hind coxal plates

very little widened inwards.

Length 10-103, breadth 24-23 millim.

Hab. Guatemata, Capetillo (Champion).

Two examples, probably sexes, the example with the rufous thorax having slightly

shorter antenne than the black male. This insect can be compared only with

A. miniatocollis, from which it may be at once separated by the dense yellowish white

pubescence of the under surface, and the longer and more densely punctured thorax.

13. Agriotes acutus. (Tab. XXIII. fig. 1.)

Elongate, fusiform, convex, shining; black, brown, or yellowish-brown, the prothorax in pale specimens

usually ferruginous or rufous, sometimes with the disc black in the middle (the black in one example

extending to the base and apex), the antenne brown, with the basal joint testaceous, the legs brown or

testaceous; above rather sparsely clothed with yellowish-cinereous pubescence, the pubescence on the

under surface denser and paler. Head closely, finely punctate; antenne reaching the hind angles of the

prothorax in the female, slightly longer in the male, joints 2 and 3 subequal in length, 3 very little

shorter than 4. Prothorax broader than long, rounded at the sides, strongly narrowed in front and

constricted behind; the hind angles long, narrow, acute, and divergent, carinate; the surface somewhat

closely, moderately finely punctate, the punctuation becoming very sparse on the basal declivity, deeply

canaliculate behind, and with a smooth median line; the marginal carina distinct throughout. Elytra

three and one-half times the length of the prothorax, rounded at the sides, and rapidly narrowing from a

little below the base, pointed behind, the apices acute and slightly dehiscent ; punctate-striate, the inter-

stices almost flat and very finely, rugulosely punctate. Beneath densely and minutely, the prosternum

and propleure sparsely and much more coarsely, punctate. Hind coxal plates a little widened in their

inner third.

Length 9-92, breadth 23-22 millim. (d @-)

520 SERRICORNIA.

Hab. Nicaraava, Chontales (Belt); Panama, Volcan de Chiriqui 2500 to 4000 feet

(Champion).

Seven examples from Chiriqui and one from Chontales. Differs from most of the

other Central-American species in its fusiform shape; the elytra are pointed behind;

the thorax is transverse, strongly narrowed in front and constricted behind, with long,

narrow, and acute hind angles. A. acutus is nearest allied to A. lateralis, but easily

separable from it by the pointed elytra and the anteriorly narrowed thorax, the sides

of which are more rounded in front and more constricted behind. The insect varies

greatly in colour. In one specimen the thorax is black and the elytra are brown; in

another the thorax is rufous and the elytra are black. A Chiriqui specimen is figured.

14. Agriotes lateralis. (Tab. XXIII. fig. 2.)

Agriotes lateralis, Cand. Compt. Rend. Soc. Ent. Belg. 1878, p. exciii (Elat. Nouv. ii. p. 48)’.

Hab. Costa Rica!; Panama, Bugaba, Volcan de Chiriqui (Champion).

Var. a. Black, the elytra with the suture and a submarginal stripe cinereo-pubescent.

Hab. Costa Rica (coll. Janson).

Found in plenty in Chiriqui. This insect, in its vittate form, somewhat resembles

A. quadrivittatus, except that the usual discoidal black patch on the thorax is oval or

oblong (instead of transverse) and the elytra are considerably more elongate; the punc-

tuation of the thorax and elytra is also less dense. ‘The colour is variable: the thorax

in some specimens is black, and in others ferruginous; the elytra in typical examples

are piceous or fuscous, with a submarginal flavous vitta (this and the suture being

clothed with yellowish-cinereous pubescence), sometimes entirely brownish testaceous

or black. We are indebted to Dr. Candéze for one of his types. The variety @ is

represented by a single example (¢) in the Janson collection. A specimen from

Bugaba is figured.

15. Agriotes trivittatus. (Tab. XXIII. fig. 3.)

Moderately elongate, fusiform, rather shining; black, the prothorax and propleure ferrugineo-testaceous, the

prothorax with two curved brown or reddish-brown vitte on the disc, the vittee extending from the base

to near the apex and narrowing in front and behind, the elytra with a rather broad testaceous vitta on

the outer part of the disc extending from the shoulder to near the middle, the metasternum and abdomen

brownish at the sides, the antenne blackish-brown, with the basal one or two joints testaceous, the legs

testaceous ; thickly pubescent, the pubescence yellowish-cinereous on the head, prothorax, except on the

dorsal vitte, where it partakes of the ground-colour, scutellum, and under surface; the elytra with the

suture and a sharply defined stripe on the outer part of the disc (covering the shorter vitta, narrowing

behind, and extending to near the apex) clothed with yellowish-cinereous pubescence, that on the rest of

their surface blackish-brown. Head densely, finely punctate; antenne about reaching the hind angles

of the prothorax, joints 2 and 3 equal in length, 3 slightly shorter than 4. Prothorax convex, slightly

broader than long, rounded at the sides, the latter converging from the middle forwards, and slightly

converging and feebly sinuate behind; the hind angles moderately long, not divergent, and very finely

AGRIOTES. 521

carinate; the surface densely, finely punctate, canaliculate at the base, and with a smooth median line ;

the base with a distinct incisure on either side; the marginal carina distinct throughout. Elytra three

times the length of the prothorax, and equalling it in width, flattened on the disc, a little rounded at the

sides, and rapidly narrowing from about the basal third, pointed behind, the apices slightly acuminate ;

punctate-striate, the interstices somewhat convex, flat on the disc, and closely, rugulosely punctate.

Beneath (including the propleure) densely, finely punctate, the prosternum with coarser and more

scattered punctures. Hind coxal plates a little widened in their inner third.

Length 84-91, breadth 22-23 millim.

Hab. Nicaracua (Sallé), Chontales (Belt).

Two examples, one of which is a female. Amongst the species described by Candéze,

the present one can only be compared with 4. teniatus, from which it differs in the

narrower, curved, paler vittee of the thorax, the thorax itself being much shorter and

more rounded at the sides; the elytra, too, are flattened on the disc, more pointed

behind, and have a well-defined submarginal testaceous vitta, which is covered by an

attenuate stripe of pallid pubescence, the suture also being clothed with similarly-

coloured pubescence throughout.

16. Agriotes notatus. (Tab. XXIII. fig. 4.)

Agriotes notatus, Cand. Monogr. Elat. iv. p. 367".

Hab. Mexico ! (coll. Janson), Cordova, Jalapa, Almolonga, Oaxaca (Hoge).

I have seen eight specimens of this species, including three of the typical form, in

which the thorax is rufous, with a large oval black patch on the disc, and the elytra

have a submarginal testaceous vitta. In the varieties the thorax is black, sometimes

with the base rufous on either side, and the elytral vittee are indistinct or obsolete.

The elytra in all the specimens seen, irrespective of colour, have the suture and a rather

broad submarginal stripe cinereo-pubescent. A. notatus is longer and more parallel

than A. quadrivittatus, and also differs from that species, and from A. amadilis also, in

the shorter, more acute, and non-divergent hind angles of the thorax. In both sexes

the thorax is rounded at the sides and widest at the middle, it being distinctly

narrowed behind. A specimen from Oaxaca is figured.

17. Agriotes amabilis. (Tab. XXIII. figg. 5; 6, var.)

Agriotes amabilis, Cand. Monogr. Elat. iv. p. 866 (excl. var. a) *.

Hab. Muxico! (coll. Janson, ex Laferté).

Var. a. The prothorax rufo-ferruginous, with a broad black median vitta, which is narrowed in front and

behind ; the elytra brown or black, fusco-pubescent, with the suture, and sometimes a short streak below

the humeri, cinereo-pubescent.

Hab. Mexico (coll. Janson), Yolotepec and Yolos (Sal/é).

Var. 3. Fuscous or black, fusco-pubescent, the elytra with the suture very narrowly cinereo-pubescent.

Agriotes ciocolatinus, Cand. Elat. Nouv. v. p. 61 (1898) *.

Hab. Mexico 2, Yolos and Peras (Sal/é).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1896. 3X

523 SERRICORNIA.

The known localities for this species are all in the State of Oaxaca. From the series

of examples before me it is evident that the var. @ of Candéze belongs to another

species, and that his A. ciocolatinus is nothing but a dark unicolorous variety of

A. amabilis. The latter is compared by him with A. vaccinus, but it has no affinity

with that insect. In the form of A. amabilis described by Candéze, of which I have

seen two examples only, the thorax is black, with a large triangular rufo-ferruginous

patch on either side at the base, this extending forwards to the apex in one specimen.

‘The elytra vary in colour from testaceous-brown to black; the suture is cinereo-

pubescent, the rest of the elytral pubescence (except a short streak below the shoulders

in some specimens) partaking of the ground-colour; there is no trace of a testaceous

humeral or submarginal stripe. A. amabilis may be known from its allies by its com-

paratively short, broad form, and the transverse, densely punctured thorax, which is

rounded at the sides in both sexes and has long and divergent hind angles, these being

slightly incurved at the tip. ‘The elytra are a little rounded at the sides, gradually

narrowing from about the basal third in the male, and from the middle in the female.

One of the types is figured; also a pale variety from Yolotepec.

18. Agriotes scapularis. (Tab. XXIII. fig. 7.)

Dolopius scapularis, Chevr. in Dej. Cat. 8rd edit. p. 108’.

Agriotes amabilis, var. a, Cand. Monogr. Elat. iv. p. 866’.

Moderately elongate, narrow, rather convex, shining; black or piceous, the prothorax and propleure rufo- or

flavo-ferruginous, the prothorax usually with a black or piceous patch in front, narrowing behind and

about reaching the middle; the elytra with a more or less distinct submarginal testaceous vitta; the

basal joint of the antenne, and the abdomen in part, ferruginous, the legs brownish or testaceous ; the

head and prothorax, except on the anterior dark mark, and the suture and submarginal vitta of the

elytra, yellowish-cinereous-pubescent, the pubescence on the rest of the prothorax and elytra fuscous,

that on the under surface pale yellowish-cinereous. Head densely punctured ; antenne extending slightly

beyond the hind angles of the prothorax in the male, a little shorter in the-female, joints 2 and 3 short,

equal, 3 much shorter than 4. Prothorax considerably broader than long, very gradually narrowing {rom

the base forwards, more parallel in the male, the sides rounded in front and feebly sinuate behind; the

hind angles long, narrow, and acute, slightly divergent, and obsoletely carinate ; the surface closely, finely

punctate, the punctuation becoming more diffuse at the base, canaliculate behind; the marginal carina

faint, but distinct throughout. LElytra three times the length of the prothorax, slightly rounded at the

sides, narrowing almost from the base in the male, from about the basal third in the female, somewhat

pointed behind, the apices sharp ; punctate-striate, the interstices flat and rugulosely punctured. Beneath

densely and finely, the prosternum and propleure sparsely, punctate. Hind coxal plates very little

widened inwards.

Var. a. The submarginal vitta of the elytra obsolete ; the prothoracic black mark sometimes reaching to near

the base and less narrowed posteriorly (oval, or widening forwards), sometimes obsolete ; the elytra with

the suture and a submarginal stripe cinereo-pubescent.

Length 53-7, breadth 13-21 millim. (¢ @.)

Hab. MExico*? (coll. Janson, ea Dejean), Cordova, Juquila, Yolos (Sallé), Almo-

longa, Jalapa, Oaxaca (Hoge).

Numerous examples of the vittate form, six of the variety, one of the latter (from

- AGRIOTES. ' 523

Cordova) having the elytral pubescence almost uniformly pale. Smaller and much

narrower than A. amabilis; the thorax less rounded at the sides, with more acute and

less divergent hind angles; the elytra usually vittate, with a submarginal stripe of

pallid pubescence, the suture also being clothed with pale hairs. The present insect

is still more closely allied to A. guadrivittatus, from which it may be separated by

its narrower and less fusiform shape, and also by the black patch on the anterior part

of the thorax being triangular or oval, instead of strongly transverse. A specimen

from Oaxaca is figured. 7

19. Agriotes quadrivittatus. (Tab. XXIII. figg. 8; 9, var. B.)

Agriotes quadrivittatus, Cand. Monogr. Elat. iv. p. 366°.

Hab. Mextco!, Puebla, Playa Vicente, Tuxtla, Jacale (Sallé), Cordova (Sallé, Hoge)s

Fortin in Vera Cruz (H. H. Smith), Almolonga, Tapachula (Hége); Britisa Honpuras,

R. Sarstoon (Blancaneaur); Guatsmata, Senahu in Vera Paz, Zapote (Champion),

Guatemala city (Salvin). :

Var. a. Black, the elytral vittze indistinct or obliterated ; the elytra with a sutural and a submarginal stripe

of cinereous pubescence, the prothorax sometimes with a transverse patch of brownish pubescence on the

disc.

Hab. Mexico, Tuxtla (Sailé), Playa Vicente (Hége).

Var. 8. Black, the suture of the elytra very narrowly cinereo-pubescent. (Fig. 9.)

Hab. Mexico (coll. Janson), Cordova (Sailé), Playa Vicente (Hége).

Var. y. Black or brownish-black, the prothorax rufous or flavo-ferruginous ; the elytra with the suture very

narrowly, and a short submarginal stripe, cinereo-pubescent.

Hab. Mexico, Cordova (Sallé).

In the typical form of this variable species the thorax is rufous or flavo-ferruginous,

with a strongly transverse black patch on the disc a little before the middle, this

sometimes extending forwards to the apex, or divided down the middle so as to

form two spots. The varieties are much rarer than the type; they occur at the same

localities. The elytra are comparatively short and a little rounded at the sides, rapidly

narrowed from the base in the male, less attenuate in the female.

This is one of the commonest species of the genus in Mexico, but from the more

southern localities single examples only have been obtained. A typical specimen from

Tapachula and one of the var. 6 from Playa Vicente are figured.

20. Agriotes trilineatus. (Tab. XXIII. fig. 10.)

Moderately elongate, very narrow, rather convex, shining ; piceous or pitchy-brown, the head in front, the

prothorax and propleure rufo-ferruginous, the elytra indeterminately paler at the sides, the abdomen in

great part ferruginous, the basal joint of the antenne and the legs testaceous ; the prothorax with a large

rounded patch on the disc, divided down the centre, and the elytra, the suture and a narrow indistinct

submarginal abbreviated vitta excepted, thickly clothed with fulvous-brown pubescence, the rest of the

3X2

524 SERRICORNIA.

pubescence on the upper surface and also that beneath yellowish-cinereous. Head densely, finely punc-

tate; antennex scarcely reaching the hind angles of the prothorax, joints 2 and 3 equal, 3 shorter than 4.

Prothorax about as long as broad, subcylindrical, the sides rounded in front and feebly sinuate behind ;

the hind angles moderately long and acute, feebly divergent, and obsoletely carinate ; the surface densely,

finely punctate, obsoletely canaliculate behind, and with a smooth median line; the marginal carina

distinct throughout. Elytra three times the length of the prothorax, a little rounded at the sides,

gradually narrowing from the basal third, conjointly rounded at the apex; punctate-striate, the inter-

stices flat and thickly, rugulosely punctate. Beneath densely, finely punctate, the prosternum more

sparsely punctured. Hind coxal plates slightly widened in their inner third.

Length 63, breadth 12 millim.

Hab. Nicaraaua. Chontales (£. MZ, Janson).

Two examples, one of which is a female, the other probably a male. This small

species somewhat resembles A. ¢eniatus, but it has the thorax much less elongate,

with the discoidal marks (which are formed by darker pubescence only) rounded

externally ; the upper surface is also more finely punctured and smoother.

21. Agriotes binotatus. (Tab. XXIII. fig. 11.)

Elongate, narrow, convex, slightly shining; pale brown, the prothorax with two rather broad, oblong, darker

marks on the disc, the legs testaceous; above and beneath thickly clothed with pale yellowish-cinereous

pubescence, the hairs on the prothorax radiating from the median line. Head densely punctured ;

antenne about reaching the hind angles of the prothorax, joints 2 and 3 equal in length, 3 shorter than 4.

Prothorax slightly longer than broad, subcylindrical, the sides rounded in front and feebly sinuate behind ;

the hind angles moderately long, acute, and scarcely divergent, finely carinate ; the surface densely, finely

punctate, feebly canaliculate at the base, and with an incomplete smooth median line; the base with a

distinct incisure on either side; the marginal carina very fine, entire. Elytra rather more than three

times the length of the prothorax, and slightly wider than it, somewhat rounded at the sides, rapidly

narrowing from a little below the base, attenuate behind ; punctate-striate, the interstices flat and rugu-

losely punctured. Beneath densely and finely punctate. Hind coxal plates a little widened in their

inner third.

Length 93-10, breadth 23-23 millim.

Hab. GuaTEMALA, Sinanja in Vera Paz (Champion).

Four examples, probably including both sexes (the female only identified), all from

the vicinity of the Sinanja river, a tributary of the Polochic. This insect somewhat

resembles A. fulvescens; but it is much narrower, the thorax is shorter, with less

produced, scarcely divergent hind angles, the elytra are more finely punctate-striate,

&c. The thorax has an oblong darker mark on either side of the disc.

22. Agriotes vaccinus. (Tab. XXIII. fig. 12.)

Agriotes vaccinus, Cand. Monogr. Elat. iv. p. 872’.

Hab. Mexico, Orizaba (coll. Janson 1), Cordova (Sallé); Guatumaza, Sabo and Sinanja

in Vera Paz (Champion), Coban in Vera Paz (Conradt).

Found in abundance by myself in Vera Paz. This insect is allied to A. longipennis,

but differs from it in having the thorax less convex and gradually narrowing from the

base, with the surface finely and sparsely punctate, the basal incisures much deeper,

AGRIOTES. 525

and the hind angles more distinctly carinate. The localities are all on the Atlantic

slope. A specimen from Sabo is figured.

23. Agriotes longipennis. (Tab. XXIII. fig. 13.)

Agriotes longipennis, Cand. Monogr. Elat. iv. p. 3711.

Hab. Mexico, 'Toxpam, Cordova, Jacale (Sal/é!); Guatemaua, Cerro Zunil, Duefias

Calderas, San Gerdnimo (Champion).

In this species the elytra are unusually elongate (more than three times the length of

the thorax), and considerably wider than the thorax, a little rounded at the sides, and

somewhat rapidly narrowed from about the basal third. The thorax is convex, subcylin-

drical, rounded at the sides in front, with very long, acute, divergent, feebly carinate

hind angles; the surface is closely, coarsely punctate, and somewhat deeply canaliculate

behind; the marginal carina is incomplete, and the basal incisures shallow. ‘The elytra

are finely punctate-striate. A specimen from Calderas is figured.

24, Agriotes curticollis. (Tab. XXIII. fig. 14, 2.)

Elongate, narrow, somewhat fusiform, convex, shining; piceous or brown, the hind angles of the prothorax

and the suture and the outer part of the elytra obscure testaceous in one specimen; the antenne and

legs brownish-testaceous ; above and beneath rather sparsely clothed with yellowish-cinereous pubescence.

Head densely, finely punctate; antennze reaching the hind angles of the prothorax in the female, slightly

longer in the male, joint 3 a little longer than 2, and almost as long as, but narrower than, 4. Prothorax

much broader than long, the sides rounded anteriorly, subparallel behind in the male; the hind angles

long, narrow, acute, and divergent, finely carinate ; the surface sparsely, very finely punctate, obsoletely

canaliculate behind ; the base feebly incised on either side; the marginal carina completely obliterated at

the middle. Elytra three and two-thirds the length of the prothorax, and broader than it, somewhat

rounded at the sides, narrowing from a little below the base in the male, from about the basal third in

the female, the apices narrow and conjointly rounded; finely punctate-striate, the interstices almost flat

and very finely, rugulosely punctate. Beneath closely and finely, the prosternum and propleure sparsely,

punctate. Hind coxal plates very little widened inwards.

Length 83-9, breadth 22-23 millim. (¢ @.)

Hab. Costa Rica, Volcan de Irazu 6000 feet (fogers); Panama, Volcan de Chiriqui

4000 feet (Champion).

A male from Chiriqui and a female from Costa Rica. In its very elongate elytra this

species resembles A. longipennis, but differs from that insect in the relatively longer

third joint of the antenne, and the shorter, more sparsely and more finely punctured

thorax, which has narrower and more acute hind angles. From A. vaccinus it may be

known by the short thorax, with feeble basal incisures, &c. The Costa Rican specimen

is figured.

25. Agriotes quadraticollis. (Tab. XXIII. fig. 15.)

Moderately elongate, convex, subopaque, the elytra slightly shining ; piceous or brown, the prothorax with the

sides behind, or the hind angles, and the sides of the abdomen, ferruginous, the elytra sometimes with the

sides or a submarginal vitta obscure testaceous, the basal joint of the antenne and the legs testaceous ;

above and beneath thickly clothed with pale yellowish-cinereous or pale greyish pubescence, the elytra in

526 SERRICORNIA.

some specimens with a broad space down the disc of each, and the margins fusco-pubescent with a few

paler hairs intermixed (leaving a sutural and a submarginal stripe of pale hairs). Head very densely

punctured; antenne short, not reaching the hind angles of the prothorax, joints 2 and 3 equal, 3 shorter

than 4, Prothorax about as long as broad, subcylindrical, the sides rounded in front and straight or very

feebly sinuate behind; the hind angles long and acute, not or feebly divergent, without distinct carina ;

the surface very densely, finely punctate, canaliculate behind; the base feebly incised on either side; the

marginal carina complete. Elytra two and two-thirds the length of the prothorax, subparailel to about

the basal third and narrowing thence to the apex, somewhat pointed behind; punctate-striate, the

interstices flat and rugulosely punctured, rougher at the base. Beneath densely and finely, the prosternum

and propleure more coarsely, punctate. Hind coxal plates slightly widened in their inner third.

Length 7-8, breadth 2-23 millim. ( 9.)

Hab. GuaTEMALA, Capetillo and San Gerénimo (Champion).

Fight specimens, females only identified. More parallel than the females of A. guate-

malensis, A. opacicollis, and A. mixtus, the thorax less transverse and broader anteriorly

than in the first-mentioned species, and with a complete marginal carina. It has a

squarer thorax than most of its allies. The pubescence of the elytra is almost

unicolorous in some specimens, and in others it forms a paler sutural and submarginal

stripe. A specimen from San Geroénimo is figured.

26. Agriotes cinereiventris.

Rather short, narrow (¢ ), a little broader ( @ ), convex, shining, the head and elytra duller; black,—the male

with the propleure and prothorax rufo-ferruginous, the latter with an oval black mark on the disc

extending to the base and apex,—the basal joint of the antenne rufo-testaceous, the legs testaceous ;

above rather sparsely pubescent, the pubescence on the head and prothorax fusco-cinereous, that on the

scutellum, suture, and sides of the elytra in front cinereous, and on the rest of the elytra fuscous; beneath

thickly cinereo-pubescent. Head densely punctured; antenne extending to a little beyond the hind

angles of the prothorax in the male, slightly shorter in the female, joints 2 and 3 equal in length, 3 much

shorter than 4. Prothorax about as long as broad, subcylindrical, the sides rounded in front, and in the

male sinuate behind, subparallel towards the base in the female; the hind angles moderately long and

acute, divergent in the male, without carina; the surface thickly, rather coarsely punctate ; the base

incised on either side; the marginal carina distinct throughout. LElytra two and two-thirds the length

of the prothorax, narrowing from about the middle in both sexes, pointed behind, the apices acute ;

punctate-striate, the interstices flat and densely rugulose, rougher at the base. Beneath densely and

finely, the prosternum and propleure coarsely and more sparsely, punctate. Hind coxal plates scarcely

widened inwards.

Length 6-7, breadth 12-2 millim. (¢ 9.)

Hab. Mexico, Chilpancingo in Guerrero 4600 feet (ZZ. H. Smith).

One male and three females. This species is of about the same size as A. alternus;

but it is more parallel, the thorax is coarsely punctured, and the elytra are deeply

punctate-striate, with the interstices more rugose. ‘The females are broader than the

male, and entirely black. The elytra are much duller than the thorax.

27. Agriotes insolitus. (Tab. XXIII. figg. 16,3; 17,2.)

Athous insolitus, Laferté, in litt.

3. Moderately elongate, narrow, rather convex, shining; black, the elytra sometimes with a faint brassy

lustre, the antenne piceous or pitchy-brown, with the two basal joints testaceous, the legs testaceous ; above

AGRIOTES. 527

yellowish-cinereous-pubescent, the elytra each with a more or less distinct stripe of fuscous or blackish

pubescence near the suture, sometimes extending to the greater part of the surface, the body beneath

thickly clothed with cinereous or yellowish-cinereous pubescence. Head thickly, finely punctate; antenne

extending to a little beyond the hind angles of the prothorax, joints 2 and 3 equal in length, 3 shorter

than 4. Prothorax slightly broader than long, the sides rounded anteriorly and feebly sinuate behind ;

the hind angles long, acute, and divergent, without distinct carina; the surface very finely, sparsely

punctate, in some specimens feebly canaliculate at the base; the base feebly incised on either side; the

marginal carina distinct throughout. Elytra three times the length of the prothorax, and slightly wider

than it, somewhat rounded at the sides, and narrowing from a little below the base, attenuate behind ;

punctate-striate, the interstices flat and rugulose. Beneath densely and very finely, the prosternum and

propleure sparsely, punctate. Hind coxal plates slightly widened in their inner third.

Q. Broader; rufo-testaceous, the base of the head, a large oval spot on the disc of the prothorax, the

prosternum (except in front), and the metasternum, black, the elytra testaceous or brownish-testaceous ;

the antenne brown, with the basal joints testaceous; the pubescence yellowish-cinereous.

Var. Rufo-testaceous, the head, the prosternum (except in front), the metasternum, and elytra black, the

latter with a short testaceous humeral stripe. ( 9.)

Length 63-73, breadth 2-24 millim.

Hab. Mexico (coll. Janson, ex Laferté), Zacualtipan and Real del Monte in Hidalgo

(Hoge).

Numerous examples. Closely allied to A. alternus, but larger and more elongate ;

the elytra submetallic in some specimens, and with the pubescence differently arranged

in the typical forms. The sexes are very dissimilar in colour, the females corresponding

with some of the varieties (¢ and 2 ) of A. alternus. The males have the suture and

a broad marginal stripe clothed with yellowish-cinereous pubescence (leaving a more or

less distinct fusco-pubescent stripe on the disc of each elytron); in the females the

pubescence is almost entirely pale. The single ( ¢ ) specimen in the Laferté collection

is labelled with the specific name here adopted.

28. Agriotes alternus. (Tab. XXIII. fig. 18, ¢.)

Agriotes alternus, Cand. Monogr. Elat. iv. p. 871+.

fab. Mexico 1 (coll. Janson), Toxpam, Cordova, and Orizaba in Vera Cruz, Parada

and Juquila in Oaxaca (Sallé), Oaxaca (Hége).

This small species may be chiefly distinguished by its short and sparsely, finely

punctured thorax, the hind angles of which are slightly divergent. It is very variable

in colour in both sexes, and the pubescence on the elytra is in some specimens uniformly

yellowish-cinereous, instead of being arranged in alternate light and dark lines as in the

type. The black form only was known to Candéze. The thorax is often rufo-ferru-

ginous, or rufo-ferruginous with an oval black spot on the disc, this being sometimes

extended so as to leave the margins only rufescent. The elytra are black, brown, or

brownish-testaceous ; they usually have the alternate interstices, or the suture and a

submarginal stripe, yellowish-cinereous-pubescent. The different varieties have all

been obtained in the vicinity of Cordova.

528 SERRICORNIA.

29. Agriotes quadrilineatus. (Tab. XXIII. fig. 19, ¢ .)

Q. Elongate, narrow, convex, subopaque: brown, the head, except in front, a broad indeterminate space

along the disc of the prothorax extending from the apex to near the base, the prosternum, propleure,

and metasternum piceous; the antenne blackish-brown, with the basal joint rufo-testaceous, the legs

testaceous ; above densely pubescent, the pubescence on the second and fourth interstices of the elytra,

and also that on their exterior margin, brown, that on the rest of the upper surface pale yellowish-grey,

whitish along the suture, the hairs on the disc of the prothorax transversely arranged on either side of

the median line; beneath densely clothed with whitish pubescence. Head densely punctured ; antenne

short, not reaching the hind angles of the prothorax, joint 3 slightly longer than 2, and a little shorter

than 4. Prothorax very much longer than broad, subcylindrical, a little rounded at the sides, the latter

arcuately converging in front and slightly converging behind; the hind angles moderately long and

divergent, not carinate; the surface densely, finely punctate, deeply canaliculate behind; the base with

short but distinct incisures; the marginal carina almost obliterated at the middle. Elytra two and

two-thirds longer than the prothorax, rapidly narrowing from about the basal third, attenuate behind ;

punctate-striate, the interstices feebly convex and rugulosely punctured. Beneath closely and finely, the

prosternum and propleure more sparsely, punctate. Hind coxal plates slightly widened in their inner third.

Length 93, breadth 22 millim.

Hab. Guatemata, Senahu in Vera Paz (Champion).

One specimen. This insect slightly resembles 4. fulvescens; but it is considerably

narrower than that species, and has the elytra more attenuate and the hind angles of

the thorax much less produced. The pubescence on the under surface and along the

elytral suture is whiter than that on the other parts of the body; the brown hairs on

the second and fourth interstices form two well-defined stripes on each elytron.

30. Agriotes cruciatus. (Tab. XXIII. fig. 20.)

Moderately elongate, narrow, rather convex, slightly shining; black or blackish-brown, the prothorax

testaceous, with a large cruciform black or blackish-brown patch on the disc not quite reaching the

base, the basal joint of the antenne and the scutellum sometimes obscure testaceous ; the legs brown, the

femora sometimes paler; the under surface much paler than above, the propleure entirely testaceous ;

above and beneath thickly pubescent, the pubescence on the prothorax partaking of the ground-colour,

that on the elytra cinereous along the suture and at the sides, and fuscous or fusco-cinereous on the rest of

the surface—in one specimen (2 ) uniformly yellowish-cinereous, the under surface uniformly yellowish-

cinereous-pubescent. Head densely punctured ; antenne extending to some distance beyond the hind

angles of the prothorax in the male, shorter in the female, joints 2 and 3 equal, 3 shorter and narrower

than 4. Prothorax about as long as broad, the sides rounded anteriorly and subparallel behind; the hind

angles moderately produced, acute, slightly divergent, and not carinate; the surface densely, finely

punctate, canaliculate behind, and with indications of a smooth median line; the marginal carina distinct

at the base and apex only. Elytra about three and one-fourth times the length of the prothorax,

narrowing from the basal third in the male, more parallel in the female, the apices rather sharp; punctate-

striate, the interstices flat and rugulosely punctured. Beneath closely and finely, the propleure very

sparsely, punctate, the prosternum with coarser punctures. Hind coxal plates slightly widened in their

inner third.

Length 63-87, breadth 13-23 millim. (¢ 9.)

Hab. GuateMats, Chiacam in Vera Paz (Champion), Coban in Vera Paz (Conradt).

Found in plenty by myself at Chiacam. This remarkably distinct species somewhat

resembles A. pulcherrimus, but it is very much smaller and narrower, and has a shorter

AGRIOTES. 529

thorax, which is marked with a sharply defined black cross. The elytra usually have

the suture and a submarginal stripe clothed with paler pubescence.

31. Agriotes incallidus.

Agriotes incallidus, Cand. in litt.

Elongate, rather broad, moderately convex, shining; piceous, pitchy-brown, or reddish-brown, the elytra

paler than the prothorax in dark specimens, the metasternum and abdomen ferruginous at the sides, the

antenne ferrugineo-testaceous, the legs testaceous; above somewhat thickly, beneath densely, clothed

with pale yellowish-cinereous. pubescence. Head closely punctured; antenne slender, extending to a

little beyond the hind angles of the prothorax in the male, shorter in the female, joints 2 and 3 subequal

in length, 3 slightly shorter than 4. Prothorax a little longer than broad, subcylindrical, the sides

rounded in front and feebly sinuate behind; the hind angles long and acute, moderately divergent, not

carinate ; the surface thickly, somewhat coarsely punctate, the punctuation becoming sparser behind,

deeply canaliculate from the middle to the base; the base sharply incised on either side; the marginal

carina obliterated for some distance before the middle. LElytra three times the length of the prothorax,

and a little wider than it, slightly rounded at the sides, rapidly narrowing from about the basal third in

both sexes, somewhat pointed behind, the apices acute; finely punctate-striate, the interstices flat and

rugulosely punctured. Beneath, the propleurz included, densely, finely punctate, the prosternum with

coarser and more scattered punctures. Hind coxal plates slightly widened in their inner third.

Length 93-10, breadth 23-3 millim. (¢ Q.)

Hab. Mexico (coll. Janson, ex Candéze), Cordova (Sallé), Jalapa (Hége); GuaTEMALA,

Coban in Vera Paz (Conradt).

Numerous examples from Eastern Mexico, two only from Guatemala; one of the

former is labelled with the name here adopted. This insect resembles A. longipennis ;

but it has the elytra relatively less elongate, and the thorax broader, with deep basal

incisures. The last-mentioned character will serve to separate it from A. fulvescens,

A. monticola, &c. From A. vaccinus it may be known by the more parallel, coarsely

punctured, very deeply canaliculate thorax.

32. Agriotes monticola.

2. Elongate, narrow, convex, subparallel, slightly shining; reddish-brown, the disc of the prothorax indeter-

minately infuscate in the middle; above and beneath somewhat thickly clothed with yellowish-cinereous

pubescence, the pubescence on the dise of the prothorax radiating from the centre. Head densely

punctured ; antenne not extending beyond the hind angles of the prothorax, joint 3 longer than 2, and

very little shorter than 4. Prothorax subcylindrical, a little longer than broad, the sides rounded in front

and feebly sinuate behind; the hind angles moderately long and slightly divergent, not carinate; the

surface closely and rather coarsely punctate, the punctuation becoming sparser on the disc, canaliculate

behind, and with a narrow smooth space along the middle; the base feebly incised on either side; the

marcinal carina distinct at the base and apex only. LElytra three and one-third times the length of the

prothorax, gradually widening to the middle and narrowing thence to the apex, the apices narrow;

punctate-striate, the interstices feebly convex and rugulosely punctate. Beneath closely and finely, the

prosternum and propleure more sparsely, punctate. Hind coxal plates slightly widened in their

inner third.

Length 92, breadth 22 millim.

Hab. GuateMaua, Volcan de Agua between 8500 and 10,500 feet (Champion).

One example. ‘This insect is allied to A. tncallidus; but it is narrower and more

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, June 1896. 3Y

530 SERRICORNIA.

parallel than the female of that species, the thorax is more sparsely punctured on the

disc, and the elytra are widest at the middle.

33. Agriotes mexicanus.

Moderately elongate, rather narrow, convex, slightly shining; piceous or reddish-brown, the elytra brown ;

the antenne brown, with the basal joints testaceous, the abdomen ferruginous at the sides, the legs

testaceous ; above and beneath thickly clothed with pale yellowish-cinereous or pale greyish pubescence,

the elytra in one specimen with some brownish pubescence on the second and third interstices. Head

densely, finely punctate; antenne extending slightly beyond the hind angles of the prothorax in the male,

shorter in the female, joints 2 and 3 equal in length, 3 much shorter than 4. Prothorax about as long as

broad, subcylindrical, the sides rounded in front and sinuate behind; the hind angles long, acute, and

divergent, not or obsoletely carinate ; the surface very closely, finely punctate, feebly canaliculate behind ;

the base feebly incised on either side; the marginal carina faintly indicated at the base. Elytra three

times the length of the prothorax, and slightly wider than it, a little rounded at the sides, narrowing from

the basal third, somewhat pointed behind ; punctate-striate, the interstices flat and rugulosely punctured.

Beneath densely and very finely, the prosternum more sparsely, punctate. Hind coxal plates slightly

widened inwards.

Length 7-74, breadth 2-2} millim. (¢ 9.)

Hab. Mexico (Sallé), Jalapa (fHége).

Four specimens. Much smaller and less elongate than A. incallidus, the thorax

more densely and much more finely punctate, and feebly incised at the base, the

antenne shorter in the male. From A. binotatus, apart from its less elongate elytra,

it may be known by the more finely and less densely punctured thorax.

34. Agriotes guatemalensis.

Moderately elongate, narrow, convex, slightly shining; piceous or brown, the abdomen usually ferruginous at

the sides in dark specimens, the basal one or two joints of the antenne and the legs testaceous; above

and beneath somewhat thickly clothed with yellowish-cinereous pubescence, the elytra with darker hairs

intermixed. Head very densely punctate; antenne extending to some distance beyond the hind angles of

the prothorax in the male, considerably shorter in the female, joints 2 and 3 equal, 3 much shorter than 4,

Prothorax about as long as broad in the male, more transverse in the female, subcylindrical, and with the

sides rounded in front and slightly sinuate behind in the male, gradually narrowing from a little before

the base in the female; the hind angles moderately long and narrow, not or obsoletely carinate, divergent

in the male; the surface densely, finely punctate, deeply canaliculate behind; the base feebly incised on

either side; the marginal carina obliterated at the middle. Elytra three times the length of the prothorax,

and wider than it in the male, a little rounded at the sides, narrowing from about the basal third in the

male, from the middle in the female, somewhat pointed behind ; punctate-striate, the interstices flat and

rugulosely punctured, rougher at the base. Beneath closely and finely, the prosternum and propleure

more coarsely, punctate. Hind coxal plates a little widened in their inner third.

‘Length 62-73, breadth 2-23 millim. (¢ 2.)

Hab. GuateMaua, Capetillo (Champion).

Eight specimens. More parallel and more shining than A. opacicollis; the thorax

a little less densely punctured, distinctly narrower than the elytra in the male, and also

more transverse in the female; the elytra less attenuate in both sexes, the pubescence

not paler along the suture and at the sides. From the still more nearly allied

A, mixtus, from Western Mexico, it may be known by the colour of the pubescence

AGRIOTES. 531

of the thorax and elytra, the slightly longer third joint of the antenne, &c, As in

A. mixtus, the females differ considerably from the males.

35. Agriotes opacicollis. (Tab. XXIII. figg. 21,¢; 21a, genitalia.)

Moderately elongate, narrow, convex, opaque, the elytra slightly shining; piceous or pitchy-brown, the

prothorax with the hind angles or a triangular patch on either side at the base ferrugineo-testaceous,

the abdomen and metasternum sometimes in part ferruginous, the basal joint of the antenne and the

legs testaceous; the head, prothorax, scutellum, and under surface, and the elytra with the suture to

the apex and the sides to about the middle, thickly clothed with yellowish-cinereous pubescence, the

prothorax in some specimens with a rhomboidal patch on the dise clothed with brownish hairs, the rest

of the elytral pubescence fuscous. Head very densely punctate; antenne extending to a little beyond

the hind angles of the prothorax in the male, slightly shorter in the female, joints 2 and 3 equal,

3 shorter than 4. Prothorax as long as broad, subcylindrical, the sides rounded in front and sinuate

behind; the hind angles long and divergent, not carinate; the surface very densely and finely punctate

throughout, finely canaliculate behind; the base feebly incised on either side; the marginal carina

indistinct from the middle forwards. Elytra about two and three-fourths the length of the prothorax,

slightly rounded at the sides, rapidly narrowing from a little below the base in both sexes, somewhat

pointed behind; punctate-striate, the interstices flat and rugulosely punctured. Beneath more shining

than above, densely and finely, the prosternum and propleure more coarsely, punctate. Hind coxal plates

slightly widened in their inner third.

Var. Reddish-brown, the base of the head, and a large rhomboidal patch on the disc of the prothorax, black

or piceous.

Length 7-74, breadth 2-21 millim. (¢ 2.)

Hab. Guatemata, Zapote (Champion).

Twenty-three specimens, three of which appertain to the variety. This species has

the thorax so densely punctured as to appear opaque. It is perhaps nearest allied to

A. mixtus; but differs from it in the densely punctured thorax, which is more parallel

in the female, the more attenuate elytra in both sexes, &c. The puncturing of the

thorax is a little coarser and denser than in A. mexicanus; the brownish-pubescent

rhomboidal mark on the disc is well-defined in some of the typical specimens, as well

as in the variety.

36. Agriotes hirsutus.

Moderately elongate, rather narrow (¢), much broader and more convex (@ ), slightly shining, black, the legs

piceous or pitchy-brown; above somewhat thickly clothed with moderately long, semierect, fuscous or

blackish hairs, the under surface with brownish-cinereous, decumbent pubescence. Head densely punc-

tured; antenne extending to far beyond the hind angles of the prothorax in the male, very short in the

female, joints 2 and 3 short, equal, 3 shorter than 4. Prothorax broader than long, more transverse in

the female, narrowing from the base in the male, broader anteriorly and more rounded at the sides in the

female, the sides converging in front and sinuate behind; the hind angles long, acute, and divergent,

without distinct carina; the surface densely and somewhat coarsely punctate; the base feebly incised on

either side; the marginal carina distinct towards the base only, completely obliterated anteriorly. Elytra

three times the length of the prothorax, narrowing from a little below the base in the male, widest at the

middle in the female, somewhat pointed behind; punctate-striate, the interstices flat in the male, convex

in the female, and rugulosely punctured. Beneath, the prosternum and propleure included, thickly and

rather coarsely punctate, the ventral segments more finely and more diffusely punctured. Hind coxal

plates a little widened in their inner third.

Length 73-94, breadth 22-3 millim. (¢ 92.)

Hab. Mexico, Ciudad in Durango (Hége).

3Y 2

532 SERRICORNIA.

One pair. Differs from all the other Central-American species of the genus in the

semierect pubescence of the upper surface, the insect in this respect resembling

Hemicrepidius carbonatus. The marginal carina of the thorax is almost obsolete.

The prosternum and propleure are closely punctured. ‘The sexes are very dissimilar

in appearance. <A. hispidus, Lec., has similar pubescence, but differs in numerous

details. A. hirsutus is unknown to Dr. Candéze.

37. Agriotes mixtus.

Moderately elongate, rather convex, narrow (¢), broader (@ ), slightly shining; black or piceous, the females

with a triangular rufo-ferruginous patch of variable extent on either side at the base, sometimes extending

broadly forwards to the apex (leaving an oval black patch on the disc), the elytra often brown or reddish-

brown in this sex; the basal joint of the antenne testaceous, the legs testaceous or brownish; the prothorax

with an oval patch on the disc, and the elytra, except along the suture and at the sides, brownish- or

fusco-pubescent, the rest of the pubescence on the upper surface cinereous, that on the under surface dense

and whitish. Head densely punctured ; antenne extending to a little beyond the hind angles of the pro-

thorax in the male, shorter in the female, joint 3 short, scarcely as long as 2, and much shorter than 4.

Prothorax broader than long, gradually narrowing from the base in the female, more cylindrical in the

male, the sides rounded in front and feebly sinuate behind; the hind angles long, acute, and slightly

divergent, not carinate; the surface densely, somewhat coarsely punctate, deeply canaliculate behind; the

base with a distinct incisure on either side; the marginal carina faint, obliterated at the middle in some

specimens, complete in others. LElytra three times the length of the prothorax, a little rounded at the

sides, narrowing from about the basal third in both sexes, somewhat pointed behind; punctate-striate, the

interstices feebly convex and rugulosely punctured. Beneath densely and finely, the prosternum and

propleure more sparsely, punctate. Hind coxal plates very little widened inwards.

Length 6-83, breadth 12-23 millim. (¢ 9.)

Hab. Mexico, Chilpancingo 4600 feet, and Xucumanatlan 7000 feet, both in Guerrero

(H. H. Smith).

Seven females and one male, the females varying in the colour of the thorax and

elytra. Smaller and narrower than A. amabdilis, the hind angles of the thorax less

divergent, the elytra more deeply punctate-striate, and with the pubescence differently

coloured, the third joint of the antenne shorter, &c. The pale greyish pubescence

along the suture and at the sides of the elytra does not form well-defined stripes as in

many of the allied species. ‘The male is much narrower than the female.

38. Agriotes pauxillus.

Rather short, narrow, convex, slightly shining; piceous or brown, the elytra sometimes with traces of an

obscure testaceous submarginal vitta, the abdomen usually in part ferruginous, the basal joint of the

antenne and the legs testaceous; the head, prothorax, scutellum, and under surface, and the elytra with

the suture and the sides or a submarginal stripe, clothed with cinereous or yellowish-cinereous pubescence,

the pubescence on the rest of the elytra usually fuscous or brownish, the prothorax sometimes with

brownish hairs on the middle of the disc. Head very densely punctured ; antennz about reaching the hind

angles of the prothorax, joint 3 distinctly shorter than 2, and much shorter than 4. Prothorax slightly

broader than long, subcylindrical, the sides rounded in front and almost straight behind; the hind

angles long and acute, feebly divergent, not carinate; the surface densely, finely punctate, shallowly

canaliculate behind; the base feebly incised on either side; the marginal carina obliterated at the middle.

Elytra three times the length of the prothorax, gradually narrowing from about the basal third, somewhat

pointed behind, the apices sharp; punctate-striate, the interstices almost flat and rugulosely punctured,

AGRIOTES.—GLYPHONYX. 533

rougher at the base. Beneath closely, finely punctate. Hind coxal plates slightly widened in their

inner third.

Length 53-7, breadth 13-21 millim.

Hab. Mexico (coll. Janson, ex Laferté), Capulalpam and Yolos (Sa//é).

Ten specimens, probably including both sexes; females only identified. This

obscure species may be known from most of the allied forms by the third joint of the

antenne being distinctly shorter than the second. From A. mixtus it may be separated

by its more parallel shape, the slightly shorter third antennal joint, and the more

rugose elytral interstices. From A. cinereiventris, with which it agrees in general

shape, the present insect differs in the more densely and less coarsely punctured thorax,

with more produced hind angles, and the rather shorter third antennal joint. The

punctuation of the thorax is less dense than in A. quadraticollis.

39. Agriotes angustatus. (Tab. XXIII. figg. 22; 22a, antenna.)

Rather short, narrow, parallel, moderately convex, shining; pale brown, the basal joint of the antenne

testaceous, the legs obscure testaceous; sparsely clothed with fine yellowish-cinereous pubescence.

Head densely, rugosely punctured, feebly sulcate down the middle; antennz short, not reaching the hind

angles of the prothorax, joints 2 and 4 subequal in length, 3 distinctly shorter. Prothorax about as long

as broad, subcylindrical, rounded at the sides in front; the hind angles moderately long, straight, and

acute, not carinate; the surface thickly, coarsely punctate, canaliculate behind; the base very feebly

incised on either side; the marginal carina distinct at the base only, completely obliterated anteriorly.

Elytra two and two-thirds longer than the prothorax, and of the same width, parallel to the middle and

narrowing thence to the apex, the apices conjointly rounded ; punctate-striate, the interstices slightly

convex on the disc, flat at the sides, and thickly punctured. Beneath closely and finely, the prosternum

and propleure coarsely, punctate. Legs comparatively short; the basal joint of the hind tarsi about

as long as the second and third united. Hind coxal plates scarcely widened inwards.

Length 53, breadth 13 millim.

Hab. Mexico, Jalapa (/ége).

One specimen, probably a female. ‘This small species is not very closely allied to

any of the other Central-American members of the genus. It is parallel in shape and

very sparsely pubescent, with comparatively short legs, the hind angles of the thorax

straight, and the third antennal jeint considerably shorter than the second or fourth.

From A. pauxillus it may be known by its narrower shape, the much more coarsely

punctured thorax, the hind angles of which are less produced, the smoother and more

convex elytral interstices, &c.

Group ADRASTINI.

GLYPHONYX.

Glyphonyx, Candéze, Monogr. Elat. iv. p. 451 (1863).

This is one of the best-defined genera amongst the Elateride. The described species

—forty in number, sixteen of which are American—are spread over the warmer

regions of both hemispheres. It is very well represented in Central America, whence

we have received upwards of 400 specimens, belonging to twenty-three species, all but

534 SERRICORNIA.

five of which appear to be undescribed. The chief characters of the genus are :—The

deeply inserted head; the convex, acuminate front, the anterior margins of which are

strongly reflexed and meet at an angle in the centre; the inferior marginal carina of

the thorax, this carina being replaced at the sides by a lateral carina—variable in

length according to the species, and in many of them nearly reaching the apex,—the

two meeting at the apex of the hind angles; the long basal joint of the antenne ; the

widely separated double prosternal sutures, the enclosed space being excavate in front

for the reception of the base of the antenne; the feebly dilated posterior coxal plates

(except in G. dugesi) ; the lamellate fourth tarsal joint; and the pectinate claws.

The species—many of which vary greatly in colour and size, or differ to some extent

sexually—may be readily grouped by the form of the prosternal process, the greater or

less approximation of the thoracic carine, and the relative length of the lateral one;

in some few species the inferior marginal carina is partly obliterated behind. In

G. angulatus and others the elytral epipleure are conspicuously angulate opposite the

hind coxe, and even hollowed for the reception of the apices of the femora. In

G. mimeticus, Horn, the elytra are carinate near’ the sides at the apex. Some of the

less elongate, small species superficially resemble the genus Anchastomorphus.

These insects, nearly all of which are very small and inconspicuous, resembling small

Agriotes, are found upon herbage, and most of the novelties described have been found

in abundance.

a. Prosternal process acuminate, more or less V-shaped, margined to the apex or

nearly so, the slender posterior portion distinctly grooved or punctured down

the centre *.

a'. Posterior coxal plates somewhat broadly and abruptly dilated in their inner

third; prothorax subquadrate, about as long as broad . . . ww... dugesi. J -

6’. Posterior coxal plates moderately and more gradually dilated in their inner

third.

a'. The lateral and inferior marginal carinz of the prothorax widely separated

anteriorly, the inferior carina strongly sinuate behind.

a". The lateral carina nearly reaching the apex.

a’, Klytra narrowing from about the basal third.

a’. Prothorax a little broader than long, subquadrate (at least in

the g); inferior marginal carina sharply defined throughout ;

propleure rather coarsely punctured. . . . . . . . ) . . gétadraticollis. |/

6°. Prothorax much broader than long, rounded at the sides anteriorly

in both sexes; inferior marginal carina becoming faint behind ; |

propleure sparsely and finely punctured. . . . . . . . .. brevicollis. /

* The ante-apical tooth is taken as the apex, the internal (or lower) prolongation of the process being hidden

within the mesosternal cavity.

GLYPHONYX.

6. Elytra relatively shorter, narrowing almost from the base; prothorax

transversely subquadrate . - .

BM, The lateral carina shorter, not extending beyond the middle.

*, Elytral interstices -rugose, granulate towards the base; prothorax

subquadrate ; pubescence somewhat erect

d‘, Elytral interstices rugulosely punctured; prothorax strongly transverse.

c'". The lateral carina extending to near the apex .

c’. Elytra gradually narrowing from the basal third, testaceous, with a

well-defined broad black sutural stripe ; epipleure feebly angulate.

ad’, Elytra rapidly narrowing from the basal third, with a sutural

stripe and an oblique mark on the middle of the disc (obliterated

in var.) black; epipleurz sharply angulate .

6". The lateral and inferior marginal carinz of the prothorax more approxi-

mate, the inferior carina feebly sinuate behind ; prothorax nearly as long

broad.

da", The lateral carina short, not reaching the middle.

e*. Body rather narrow; prothorax somewhat closely punctured ; elytra

apex, the apex rounded . woe oe oe ew

c. Prosternal process more or less Y- shaped, the triangular intercoxal portion

margined, the posterior portion quite smooth and reduced to a thin lamina.

c!. Elytra carinate near the sides at the apex, the apices somewhat produced ;

lateral carina of the prothorax about reaching the middle:

comparatively short Se

J’. Body very narrow ; prothorax sparsely punctured ;

6. Prosternal process more gradually narrowing behind, sharply margined to the

testaceous . .

d’. Klytra not carimate at the apex.

ce. The lateral and inferior marginal carine of the prothorax widely separated

anteriorly, the inferior carina strongly sinuate behind.

el", The lateral carina nearly reaching the apex; elytra narrowing from the

base: body testaceous. —

g’. Prothorax broader than elytra: length 54 millim.

Prothorax not broader than the elytra :

fl". The lateral carina about reaching the middle.

h*.

elytra elongate

length 23-3 millim.

a’. Body unicolorous, or with the suture, at most, slightly darker.

e’. Deep black, the legs and antenne testaceous .

f°’. Testaceous .

body rufo-

j. Body not unicolorous (except in pale vars.) ; elytra spotted or fasciate.

g°. Black, the elytra with a subhumeral triangular spot and a large

hind angles of the prothorax not divergent.

h’. Black, the elytra testaceous, with an indeterminate ante-median

fascia and the suture infuscate; hind angles of the prothorax

strongly divergent . woe ee Se

i’, Rufo-testaceous, the elytra with the suture and a median fascia or

common rhomboidal spot black or piceous .

apical spot testaceous ;

539

cuneatus.

rugipennis.

vittatus.

angulatus.

propinguus.

depressus.

tenuis.

nigritus.

mimeticus.

laticollis.

flohri.

ebeninus.

precox.

quadrinotatus

fasciatus.

cinctus,

536 SERRICORNTA.

d", The lateral and inferior marginal carine of the prothorax more approxi-

mate, the inferior carina feebly sinuate behind ; the lateral carina about

reaching the middle, or to a little beyond it.

g'". Elytra (except in vars.) fasciate: body testaceous . . . . + - « cruciellus.

h'', Elytra not fasciate.

k*. Epipleure sharply angulate: body varying in colour from piceous to

- testaceous. 2 ww we ee ee ew we ew ww wee) «Leapensis.

i’. Epipleure feebly angulate: body black or piceous, the elytra some-

times brown.

j. Elytra very gradually narrowing from the basal third: length 33-

44 millim. .... a . . + « parallelus.

k°, Elytra rapidly narrowing from the basal third: length 22-3 millim. minimus. (~~

1. Glyphonyx dugesi.

Glyphonyx dugesi, Cand. Elat. Nouv. v. p. 66 (1893) 7.

Hab. Mexico, Durango city and Villa Lerdo in Durango (Hége), Guanajuato

(Dugés'), Tepetlapa in Guerrero (H. H. Smith), Playa Vicente (Saié).

Of this species, the type of which has been communicated by Dr. Candéze, we have

received about a dozen specimens. It may be known by its comparatively large size,

and the subquadrate, closely and coarsely punctured thorax. The antenne have their

second and third joints equal in length. The front is obtusely angulate and sharply

margined. The thorax has a well-defined lateral carina extending almost to the apex ;

the inferior marginal carina is moderately sinuous behind ; the basal plice are distinct,

the basal incisures being very shallow. ‘The hind coxal plates are rather broadly and

abruptly dilated in their inner third. The prosternal process is long and acute,

gradually narrowing behind, margined to near the tip.

2. Glyphonyx quadraticollis.

? Elater inscius, Say, Trans. Am, Phil. Soc. vi. p. 184°; Complete Writings, ii. p. 622”.

? Glyphonyex recticollis, var. a, Cand. Monogr. Elat. iv. p. 454°.

Elongate, rather convex, shining; pitchy-black, piceous, or reddish-brown, the anterior and hind angles of

the prothorax usually ferruginous, the suture usually infuscate in light-coloured specimens, the legs and

antenne testaceous; thickly clothed with yellowish-cinereous pubescence. Head closely and coarsely

punctured; front with the strongly reflexed margins meeting at an obtuse angle in the centre; antenne

extending to a little beyond the hind angles of the prothorax in the male, slightly shorter in the female,

joints 2 and 3 subequal in length. Prothorax subquadrate, a little broader than long, the sides parallel

from the base almost to the apex in the male, more rounded anteriorly in the female; the hind angles

acutely produced, not or feebly divergent; the lateral carina sharply defined and extending almost to the

apex, the inferior marginal carina widely separated from it anteriorly and strongly sinuate behind; the

surface somewhat thickly and rather coarsely punctured, with a narrow space down the middle impunctate ;

the basal plice well-defined. Elytra about two and four-fifths longer than the prothorax, and a little

wider than it, narrowing from the basal third, somewhat pointed behind ; punctate-striate, the interstices

feebly convex and rugulosely punctured ; epipleure angulate opposite the hind coxe. Prosternum and

propleurse with scattered coarsish punctures ; metasternum and abdomen thickly, finely punctate, the sides

GLYPHONYX. 537

of the metasternum with coarse punctures; prosternal process acuminate, margined almost to the tip.

Posterior coxal plates moderately widened in their inner third.

Length 43-6, breadth 13-14 millim. (¢ 2.)

Hab. * Norta America !?3.—Mexico 8, Saltillo in Coahuila (Dr. Palmer), Guanajuato,

Cordova, Yolos, Juquila, Oaxaca (Sallé), Jalapa (Hége), Orizaba (coll. Janson), Cuerna-

vaca, Teapa (H. H. Smith), Playa Vicente (Sallé, Hége); Guatemaua, Antigua (Sad/é),

Duefias, Guatemala city (Salvin, Champion), Panzos, Senahu, and San Gerénimo in

Vera Paz, Capetillo, Zapote (Champion) ; Costa Rica, Caché (Rogers).

Var. a. Larger and more elongate. (Length 6-81, breadth 14-23 millim.) (¢ 9.)

Hab. Mexico, Cuernavaca in Morelos, Atoyac in Vera Cruz (H. H. Smith),

Juquila (Sallé); British Honpuras (Blancaneaux); GuatTemaLa, San Gerdénimo

(Champion).

This is the commonest and most widely distributed species of the genus within our

limits, and it probably extends into the United States, as there are several exampies of

it in the Janson collection labelled ‘“* Am.-bor.” The Mexican specimens referred by

Candéze to G. recticollis (Say) (=pumilus, Erichs.) belong here. It is very variable in

size and colour, but the suture of the elytra in pale specimens is, at most, faintly

infuscate. From the North-American (G. recticollis, for an example of which we are

indebted to Dr. Horn, the present insect may be known, at least in the males, by the

squarer thorax, with the lateral carina extending almost to the apex, and widely separated

anteriorly from the inferior marginal one, the latter being also more strongly sinuate

behind, and the more sparsely and less coarsely punctured propleure. ‘The description

of the typical form is chiefly taken from a long series from Jalapa. In some of the

specimens (probably males) from various other localities the thorax is broader in front

than behind. Small females appear to have the thorax more transverse, and more

rounded at the sides anteriorly.

8. Glyphonyx brevicollis.

Moderately elongate, narrow, shining; black or piceous, the anterior and hind angles of the prothorax more

or less testaceous, the lateral margins also pale in some specimens, the elytra usually more or less

testaceous, this colour sometimes so extended as to leave a sutural stripe only infuscate, the antennae and

legs testaceous; thickly clothed with yellowish-cinereous pubescence. Head closely, finely punctate, the

reflexed margins of the front meeting at an obtuse angle in the centre ; antennze extending to far beyond

the hind angles of the prothorax in the male, shorter in the female, joint 3 slightly shorter than 2.

Prothorax considerably broader than long, the sides rounded in front and feebly sinuate behind; the

hind angles acutely produced and moderately divergent; the lateral carina extending forwards to near

the apex, the inferior marginal carina widely separated from it anteriorly and strongly sinuous behind ;

the surface finely and rather sparsely punctured ; the basal plice very fine. Llytra three times the

length of the prothorax, and slightly wider than it, narrowing from the basal third, and somewhat pointed

behind ; punctate-striate, the interstices feebly convex and rugulosely punctured ; epipleure angulate

opposite the hind coxe. Prosternum and propleure with widely scattered fine punctures, the propleurz

smooth at the base; metasternum and abdomen finely and rather closely punctate, the sides of the meta-

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, June 1896. 3Z

538 SERRICORNIA.

sternum with coarse punctures; prosternal process acuminate, margined to the tip. Posterior coxal

plates feebly dilated in their inner third.

Length 33-44, breadth 1-13 millim. (¢d 9.)

Hab. Mexico, Cordova (Sallé), Jalapa (Hége); Guatemaua, Purula, Senahu, Chiacam,

and San Juan in Vera Paz, Capetillo (Champion).

Found in plenty at Jalapa, more sparingly elsewhere. This insect is a close ally of

G. quadraticollis, but may be known from it by the shorter, less parallel, more finely

punctured thorax, the inferior marginal carina of which is almost obliterated behind in

some specimens, the more attenuate elytra, with more distinctly angulate epipleure,

and the smoother propleure. The elytra vary in colour from piceous to almost

entirely testaceous; in some examples from Purula and elsewhere they are testaceous,

with a well-defined black sutural stripe which is dilated at the base into a triangular

patch. The specimens from Capetillo have the thorax more closely punctured than

the others.

4. Glyphonyx cuneatus. (Tab. XXIII. fig. 23, underside of prothorax.)

Rather short, narrow, subfusiform, shining; varying in colour from piceous to rufo-testaceous, the head,

prothorax (the hind angles excepted), and suture of the elytra usually infuscate or piceous in light-

coloured specimens, the antenne and legs testaceous; thickly clothed with yellowish-cinereous pubescence.

Head thickly punctured ; the reflexed margins of the front meeting at an obtuse angle in the centre;

antenne extending to far beyond the hind angles of the prothorax in the male, shorter in the female,

joints 2 and 3 subequal in length. Prothorax transversely subquadrate, as broad a little below the apex

as at the base, the sides rounded in front and parallel or very feebly sinuate behind; the hind angles

acutely produced, not divergent ; the lateral carina extending almost to the apex, the inferior marginal

carina widely separated from it anteriorly and sinuate behind; the surface finely and rather closely

punctate ; the basal plicee distinct. Elytra about two and three-fourths longer than the prothorax, and

not wider than it, rapidly narrowing from a little below the base, somewhat pointed at the apex;

punctate-striate, the interstices feebly convex at the sides, flat on the disc, and rugulosely punctured.

Prosternum and propleurs with seattered fine punctures; metasternum and abdomen closely, finely

punctate, the sides of the metasternum with coarse punctures ; prosternal process acuminate, margined

to the tip. Posterior coxal plates moderately dilated in their inner third.

Length 32-42, breadth 1-14 millim. (¢ 9.)

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith), Motzorongo in Vera Cruz (Flohr),

Teapa in Tabasco (H. H. Smith, Hoge), 'Vapachula in Chiapas (Hége); Britisn Hon-

puras (coll. Janson), R. Hondo (Blancaneaux); GuateMata, Chacoj in Vera Paz,

Zapote (Champion).

Found in plenty at Teapa, Rio Hondo, and Zapote. This insect is of about the

same size as G. parallelus, but differs from that species in its squarer thorax, more

attenuate elytra, and longer antenne, and also in the form of the prosternal process.

The colour is very variable, but it is usually much paler than in G. parallelus; some

specimens are uniformly rufo-testaceous, and others have a well-defined dark sutural

stripe.

GLYPHONYX. 539

5. Glyphonyx rugipennis.

Moderately elongate, convex, narrow, shining ; black, the elytra in one example obscure reddish-brown with

the suture broadly infuscate, the antenne and legs testaceous; thickly clothed with rather long, fine,

yellowish-cinereous pubescence, which is semierect on the upper surface and decumbent beneath. Head

closely punctured; front triangular, the margins strongly reflexed and meeting at an obtuse angle in the

centre; antenne nearly half the length of the bodv in the male, shorter in the female, joints 2 and 3

subequal in length. Prothorax nearly as long as broad, subquadrate in the male, less parallel in the

female, the sides rounded at the apex and feebly sinuate behind; the hind angles acutely produced,

slightly divergent ; the lateral carina short and very fine, extending to very little beyond the basal third,

the inferior marginal carina widely diverging from it and faint or obliterated in the middle; the surface

closely, rather finely punctate, with a narrow space down the middle impunctate; the basal plice very

fine. Elytra about two and three-fourths longer than the prothorax, and slightly wider than it, narrowing

from the basal third, and somewhat obtuse behind; punctate-striate, the interstices flat and densely,

rugosely punctured, becoming smoother beyond the middle and granulate towards the base. Prosternum

and propleur sparsely punctured; metasternum and abdomen closely and rather finely punctate ;

prosternal process sharply acuminate, margined to the tip. Posterior coxal plates moderately dilated in

; their inner third.

Length 42-53, breadth 13-13 millim. (¢d 2.)

Hab. Guatemata, Zapote (Champion).

Five specimens. ‘This insect is of about the same size and shape as @. guadraticollis,

but may be known from it, and all our other species of the genus, by the rugose

elytral interstices. The inferior marginal carina of the thorax is obliterated in the

middle in all but one of the specimens obtained, it being also much less distinct than

in G. quadraticollis. The thorax, except for a narrow space along the middle, is

closely punctured throughout. The pubescence on the upper surface appears to be

more erect than usual. G. fusculus, Cand., from Cuba, is an allied form.

6. Glyphonyx vittatus.

Moderately elongate, narrow, shining; black, the elytra broadly testaceous at the sides (leaving a broad black

or piceous attenuate sutural stripe), the margins usually infuscate or piceous, the antenne brown, with.

the two basal joints testaceous, the legs testaceous, the under surface sometimes reddish-brown ; thickly

clothed with yellowish-cinereous pubescence. Head thickly punctured; the retlexed margins of the front

meeting at an obtuse angle in the centre; antenne extending to considerably beyond the hind angles of

the prothorax in the male, shorter in the female, joint 3 shorter than 2. Prothorax much broader than

long, the sides rounded in front and feebly sinuate behind; the hind angles acutely produced, feebly

divergent; the lateral carina short, not reaching the middle, the inferior marginal carina widely

diverging from it and strongly sinuate behind; the surface thickly, finely punctate; the basal plice very

fine. Elytra three times the length of the prothorax, and scarcely wider than it, gradually narrowing

from the basal third, and somewhat pointed behind ; punctate-striate, the interstices rather convex and

finely punctured. Prosternum and propleure sparsely punctured, the punctures on the propleure coarse ;

metasternum and abdomen thickly, finely punctate, the sides of the metasternum with coarser punctures ;

prosternal process acuminate, margined to near the tip. Posterior coxal plates moderately dilated in

inner third.

Length 33-41, breadth 1-145 millim. (do 2 .)

Hab. Mexico, Omilteme, Xucumanatlan, Chilpancingo, and Amula in Guerrero

(H. H. Smith).

Seven specimens. In the broad black well-defined sutural stripe of the elytra this

342

- §40 SERRICORNIA.

species resembles one of the varieties of G. tenuis, from which it may be known by its

less elongate shape, short thorax, with more divergent carine, and the more acuminate

prosternal process. The single specimen from Amula has the sutural stripe narrower

and paler than usual. G. vittatus is smaller than G. brevicollis, and has darker antenne,

a much shorter marginal carina to the thorax, coarsely punctured propleure, &c. It is

more parallel than G. angulatus.

7. Glyphonyx angulatus. (Tab. XXIII. figg. 28; 28a, underside of pro-

thorax.)

Somewhat fusiform, narrow, convex, shining; black, the prothorax sometimes piceous, the anterior and hind

angles of the latter, the antenne and legs testaceous ; the elytra testaceous, with a sutural stripe, widening

anteriorly into a large triangular scutellar patch, and an oblique mark on the outer part of the disc about

the middle, or the sides at this part, black; thickly clothed with yellowish-cinereous pubescence. Head

thickly, finely punctate; front with the reflexed margins meeting at an obtuse angle in the centre;

antenne extending to far beyond the hind angles of the prothorax, joint 3 shorter than 2. Prothorax

strongly transverse, the sides rounded anteriorly and converging and sinuous behind; the hind angles very

narrowly and acutely produced, strongly divergent, and somewhat incurved at the tip; the lateral carina

extending forwards to the middle, the inferior marginal carina widely separated from it anteriorly, and

obliterated behind ; the surface finely, sparsely punctate; the basal plicee indistinct. Elytra three times

the length of the prothorax, and much wider than it, rapidly narrowing from the basal third, and some-

what pointed behind; punctate-striate, the interstices feebly convex and sparsely punctured ; epipleure

conspicuously angulate opposite the hind coxe, and hollowed for the reception of the apices of the hind

femora. Prosternum and propleure with widely scattered very fine punctures, the propleure concave and

smooth behind; metasternum sparsely, the abdomen more closely, punctate, the sides of the metasternum

with coarser punctures; prosternal process acuminate, margined to the tip. Posterior coxal plates slightly

dilated in their inner third.

Var. The elytra with the suture only black.

Length 3}—4, breadth 1-13 millim.

Hab. British Honporas, R. Sarstoon (Blancaneaux); GUATEMALA, Sinanja in Vera

Paz (Champion).

Five examples of the type and one of the variety, the latter being from British

Honduras. This small species, in its typical form, may be readily identified by its

peculiar coloration, as well as by the partial obliteration of the inferior marginal carina

of the thorax and the conspicuously angulate elytral epipleure. This last-mentioned

character, which is visible from above, gives the elytra the appearance of being gradually

widened in their basal third. The insect is closely allied to G. brevicollis; but it is

smaller and less robust, the thorax is relatively narrower and more constricted behind,

and the elytra usually have an oblique mark on the middle of the disc, as well as the

suture, black.

8. Glyphonyx propinguus. (Tab. XXIII. fig. 24, underside of prothorax.)

Moderately elongate, narrow, shining; piceous or brown, the hind angles of the prothorax obscure testaceous,

the suture of the elytra sometimes very narrowly infuscate, the antenne and legs testaceous; thickly

clothed with yellowish-cinereous pubescence. Head closely, finely punctate; the reflexed margins of the

front meeting at an obtuse angle in the centre; antenne nearly two-fifths of the length of the body in

GLYPHONYX. 541

the male, shorter in the female, joints 2 and 3 equal in length. Prothorax a little broader than long, the

sides rounded in front and slightly sinuate behind; the hind angles acutely produced and feebly or

moderately divergent; the lateral carina extending to near the apex, a little shorter in some specimens,

the inferior marginal carina gradually diverging from it and feebly sinuate behind; the surface thickly,

finely punctate, a narrow space down the middle of the basal half impunctate; the basal plice well

defined. Elytra two and two-thirds longer than the prothorax, and slightly wider than it, narrowing

from the basal third, and somewhat pointed behind; coarsely punctate-striate, the interstices convex and

rugulosely punctured; epipleure angulate opposite the hind coxew. Prosternum and propleure with

widely scattered fine punctures, the propleure smooth behind; metasternum and abdomen closely, finely

punctate; prosternal process acuminate, margined to the tip. Posterior coxal plates moderately dilated

in their inner third.

Length 44-5}, breadth 1}-14 millim. (¢ 9.)

Hab. Mexico, Tepetlapa in Guerrero, Atoyac in Vera Cruz (H. H. Smith); GuaTEMALA,

Duefias (Champion).

Seven specimens, six of which are from Mexico. Easily separable from G. quadrati-

collis and its allies by the more approximate thoracic carine, the inferior marginal

carina in the present species gradually diverging from the lateral one, less distant from

it in front, and more feebly sinuate behind. From the North-American G. recticollis

(Say) it may be distinguished by the longer lateral carina of the thorax, the more

coarsely punctate-striate elytra, and the more uniform coloration; the thoracic carine

are also more approximate.

9. Glyphonyx depressus.

Moderately elongate, narrow, depressed, shining, thickly pubescent; brownish-testaceous, the legs testaceous.

Head closely, finely punctate ; the reflexed margins of the front meeting at an obtuse angle in the centre ;

antenne extending slightly beyond the hind angles of the prothorax, joint 3 shorter than 2. Prothorax

nearly as long as broad, subquadrate, the sides slightly rounded at the apex ; the hind angles acutely

produced, not divergent; the lateral carina short, not reaching the middle, the inferior marginal carina

gradually diverging from it and feebly sinuate behind; the surface somewhat closely, finely punctate; the

basal plice véry fine. Elytra two and one-half times the length of the prothorax, and of the same width,

gradually narrowing from about the basal third, and somewhat pointed behind ; deeply punctate-striate,

the interstices rather convex and closely, rugulosely punctured; epipleure subangulate opposite the hind

coxee. Prosternum and propleure very sparsely, the metasternum and abdomen closely, finely punctate,

the sides of the metasternum with coarser punctures; prosternal process acuminate, margined to near the

tip, the very narrow apical portion with a row of punctures down the centre. Posterior coxal plates feebly

dilated in their inner third.

Length 42, breadth 1; millim.

Hab. Mexico, Jalapa (Hége).

One specimen, probably a male. This insect resembles the pallid form of G. quadra-

ticollis; but it is more flattened above, the elytra are relatively shorter, the lateral

carina of the thorax is short, and the inferior marginal carina gradually divergent from

it. In this last-mentioned character G. depressus agrees with G. propinguus, from which

it may be separated by the short lateral carina of the thorax, the shorter elytra, &c.

From the North-American G. testaceus (Melsh.), a specimen of which has been

communicated by Dr. Horn, it differs in its longer thorax and more sparsely and .

542 SERRICORNIA.

finely punctured propleure, as well as in having the prosternal process not grooved to

the apex, &c.

10. Glyphonyx tenuis.

Elongate, very narrow, shining; black, the elytra sometimes testaceous, with the suture broadly, and in one

specimen the margins also, black, or with an indeterminate brownish stripe extending from the shoulders

downwards; the antenne brown, with the basal three joints testaceous, the legs flavous; somewhat

thickly clothed with yellowish-cinereous pubescence. Head sparsely, finely punctate; the strongly

reflexed margins of the front meeting at an acute angle in the centre; antenne extending to far beyond

the hind angles of the prothorax in the male, shorter in the female, joint 3 shorter than 2. Prothorax

about as long as broad, the sides rounded in front and feebly sinuate behind; the hind angles acutely

produced, slightly divergent; the lateral carina short, not reaching the middle, the inferior marginal

carina feebly sinuate behind, and gradually diverging from it; the surface sparsely, finely punctate; the

basal plice distinct. LElytra about two and three-fourths longer than the prothorax, and of the same

width, narrowing from the basal third, and somewhat pointed behind; coarsely punctate-striate, the

interstices almost flat and sparsely rugulosely punctate. Prosternum and propleure with scattered

punctures, those on the propleure coarse; metasternum and abdomen thickly, finely punctate; prosternal

process acuminate, margined to the tip. Posterior coxal plates feebly dilated in their inner third.

Length 4, breadth 1-11 millim. (¢ 2.)

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

Four specimens—two of these have the elytra testaceous, with the suture broadly

infuscate, one has a brownish stripe on the elytra extending from the shoulder down-

wards, and the other is black, with the humeri slightly paler. This species chiefly

differs from those with an acuminate and completely margined prosternal process in

its very narrow, elongate shape and elongate thorax ; the lateral carina of the thorax does

not extend to the middle, and the inferior marginal carina is feebly sinuate behind.

11. Glyphonyx nigritus. (Tab. XXIII. fig. 25, underside of prothorax.)

Glyphonyx nigritus, Cand. Compt. Rend. Soc. Ent. Belg. 1878, p. exevi (Elat. Nouv. ii. p. 52)’.

Hab. MExico, Puebla, Cordova (Sallé), Motzorongo in Vera Cruz (Flohr), Atoyac in

Vera Cruz (H. H. Sith), 'Teapa in Tabasco ! (Sallé, coll. Janson) ; GuateMaa, Chiacam

and Chacoj in Vera Paz (Champion).

Apparently a common insect in the Mexican State of Vera Cruz, whence we have

received a long series of specimens. This very small species is somewhat fusiform in

shape, and black or piceous in colour, with the antenne and legs testaceous, the surface

thickly clothed with yellowish-cinereous pubescence; the thorax is convex, arcuately

narrowed in front. It may be separated from all the allied forms by the prosternal

process being very little narrowed behind, rounded at the tip, and completely margined,

with the median portion behind the coxe dull and rugulose. The lateral carina of

the thorax extends from the tip of the hind angle to near the apex*; the inferior

marginal carina is widely separated from it anteriorly, and sinuous behind. The

* Described as ‘ angulis posticis haud carinatis.”

GLYPHONYX. 043

prosternum and propleure have a few fine widely scattered punctures. The feebly

reflexed margins of the front meet at an obtuse angle in the centre. The insect varies

from 3-44 millim. in length.

The specimens in the Sallé collection are labelled Agriotes infimus, Deyr. (—=mexicanus,

Chevr.), and one of those in the Janson collection (from that of Candéze) is ticketed

G. flavipes, Cand. We are indebted to Dr. Candéze for the loan of the type.

12. Glyphonyx mimeticus. (Tab. XXIII. figg. 30, 304,29; 306, underside

of prothorax.)

Glyphonyx mimeticus, Horn, Trans. Am. Ent. Soe. v. p. 23 (1874)*.

Hab. Norvn America, Alabama and Texas! (coll. Janson).—MExico (coll. Janson,

ex Laferté), Vera Cruz (Sallé), Teapa (coll. Janson).

Fifteen specimens of this species are before me, eleven of which are from Mexico.

This species, which, as Dr. Horn remarks, has very much the facies of a Horistonotus

or Esthesopus, is of a testaceous or rufo-testaceous colour, with the suture of the elytra

sometimes infuscate. The front is triangular and sharply margined. The third joint

of the antenne is slightly longer than the second. The thorax is as long as broad, with

the lateral carina extending forwards to about the middle, and the inferior marginal

carina sinuous behind. ‘The elytra are more or less distinctly carinate near the sides

at the apex, the carine arising from the seventh or eighth interstices and sinuously

converging posteriorly, the apices appearing narrow and separately rounded. ‘The long

prosternal process is compressed behind the coxe, appearing Y-shaped as viewed from

beneath, the triangular intercoxal portion being margined, and the posterior portion

reduced to a thin lamina. The hind coxal plates are moderately dilated in their

inner third.

13. Glyphonyx laticollis. (Tab. XXIII. fig. 29.)

Moderately elongate, subfusiform, shining; brownish-testaceous, the legs testaceous, somewhat thickly pubes-

cent. Head finely and rather sparsely punctured, the punctuation becoming denser behind; front broad,

the margins meeting at an obtuse angle in the centre; antenne about reaching the hind angles of the

prothorax, joint 3 shorter than 2. Prothorax much broader than long, rapidly narrowing from about the

apical third, almost parallel behind; the hind angles acutely produced, not divergent; the lateral carina

sharp and extending to near the apex, the inferior marginal carina widely separated from it anteriorly

and strongly sinuous behind; the surface sparsely punctate, the punctuation becoming closer and coarser

towards the apex, and very fine and diffuse towards the base ; the basal plicee long and well-defined. Elytra

three times the length of the prothorax, and narrower than it, a little rounded at the sides, narrowing

from the base, somewhat, pointed behind; punctate-striate, the interstices flat and sparsely punctured,

Prosternum and propleure with a few fine widely scattered punctures; metasternum and abdomen

closely, finely punctate, the sides of the metasternum with coarse punctures ; prosternal process Y-shaped,

the triangular intercoxal portion margined. Posterior coxal plates feebly dilated in their inner third.

Length 54, breadth 13 millim.

Hab. Guatemata, San Gerénimo in Vera Paz (Champion).

544 SERRICORNIA.

One example. This species somewhat resembles G. cuneatus, but it has the thorax

relatively broader, and much more narrowed in front, the elytra more rapidly narrowing

from the base, and the prosternal process Y-shaped.

14. Glyphonyx flohri.

Short and narrow, shining, thickly pubescent; testaceous, the suture slightly infuscate in one example, the

under surface rufo-testaceous. Head sparsely, finely punctate; the reflexed margins of the front meeting

at an obtuse angle in the centre; antenne extending to considerably beyond the hind angles of the

prothorax in the male, shorter in the female, joint 8 shorter than 2. Prothorax short, transversely

quadrate, a little rounded at the sides in front; the hind angles acutely produced, not divergent; the

lateral carina extending almost to the apex, the inferior marginal carina widely diverging from it and

strongly sinuate behind; the surface sparsely, very finely punctate; the basal plicew very fine. Elytra

three times the length of the prothorax, narrowing from the base; coarsely punctate-striate, the inter-

stices convex and finely punctured. Prosternum and propleuree with a few very widely scattered fine

punctures ; metasternum and abdomen sparsely punctured, the punctures on the sides of the metasternum

and first ventral segment very coarse, the others fine; prosternal process Y-shaped, the triangular

intercoxal portion margined. Posterior coxal plates feebly dilated in their inner third.

Length 22-3, breadth 1 millim. (¢ @.)

Hab. Mexico, Motzorongo in Vera Cruz (Flohr).

One pair. This very small species resembles G. cuneatus in shape; but it has the

thorax shorter, the elytra more coarsely punctate-striate and narrowing from the base,

the metasternum and abdomen more sparsely punctured, and the prosternal process

Y-shaped. From G. teapensis and G. cruciellus it may be easily identified by its more

cuneiform shape, &c. I dedicate this insect to the late Julius Flohr, who for many

years has devoted nearly the whole of his time to the investigation of the coleopterous

fauna of Mexico.

15. Glyphonyx ebeninus. (Tab. XXIII. fig. 26, underside of prothorax.)

Rather short, very narrow, subfusiform, shining; deep black, the basal three or four joints of the antenne and

the legs flavo-testaceous; sparsely clothed with fine yellowish-cinereous pubescence. Head sparsely,

finely punctate; the reflexed margins of the front meeting at a very obtuse angle in the centre; antenne

extending to far beyond the hind angles of the prothorax in the male, shorter in the female, joint 3 shorter

than 2. Prothorax slightly broader than long, the sides rounded and converging in front, and feebly

sinuate behind; the hind angles acutely produced and slightly divergent; the lateral carina sharply

defined and extending forwards to about the middle, the inferior marginal carina widely diverging from

it and strongly sinuate behind; the surface very sparsely, finely punctate ; the basal plice long and well-

defined. Elytra about two and two-thirds longer than the prothorax, and of the same width in front,

rapidly narrowing from a little below the base, and somewhat pointed at the apex; punctate-striate, the

interstices flat and sparsely, minutely punctured; epipleure angulate opposite the hind coxe. Prosternum

and propleurs with a few fine, very widely scattered punctures; metasternum and abdomen sparsely, finely

punctate; prosternal process Y-shaped, the triangular intercoxal portion margined. Posterior coxal plates

feebly dilated in their inner third.

Length 24-33, breadth 4-1 millim. (¢ 9.)

Hab, GuatemMata, Chiacam in Vera Paz (Champion).

Twelve specimens, Easily recognizable by its narrow, subfusiform shape, deep black

colour, with the basal joints of the antenne and the legs flavous, the very sparsely and

GLYPHONYX. 545

finely punctured thorax, and the Y-shaped prosternal process. G. ebentnus resembles

G. nigritus, but it is narrower and more fusiform, the antenne are longer and have the

basal joints only pale, the prosternal process is very differently formed, &c.

16. Glyphonyx precox.

Adrastus precox, Erichs. Zeitschr. fiir Ent. iii. p. 121 (1841) *.

Hab. Mexico (coll. Janson), La Noria in Sinaloa, Chilpancingo in Guerrero, Yautepec

in Morelos, Jalapa! (Hége), Puebla (Sallé); GuatemaLa, Zapote, San Gerénimo

(Champion).

The specimens I refer to G. precoxr, the description of which appears to have been

overlooked by Candéze, may be separated from G. quadraticollis in all its varieties

by the more abruptly acuminate prosternal process and the more transverse thorax, as

well as by the entirely testaceous colour and smaller size. From the pale unicolorous

variety of G. cruciellus, and from G. teapensis also, the more divergent thoracic carine

will distinguish it. The antenne are elongate in the male, much shorter in the female.

The thorax is transversely quadrate in the male, rounded at the sides anteriorly and

apparently more transverse in the female; the lateral carina extends forwards to about

the middle, the inferior marginal carina widely diverging from it anteriorly and sinuate

behind; the punctuation is sparse and fine. The elytra are narrowed from about

the basal third, and somewhat pointed behind. The prosternal process is Y-shaped,

the triangular intercoxal portion being margined and the slender apical part quite

smooth.

There are three specimens of this species from “ Louisiana” in the Janson collection

mixed with the series of @. testaceus, from which it may be easily known by the form

of the prosternal process, &c.; the locality requires confirmation.

17. Glyphonyx quadrinotatus. (Tab. XXIII. fig. 31.)

Narrow, convex, shining; piceous, the prothorax with the anterior margin and the tips of the hind angles, the

elytra with a subtriangular, posteriorly excised spot immediately below the shoulder, and a large patch

at the apex, the latter nearly reaching the suture, the legs, and antennex testaceous, the epipleure brown ;

thickly clothed with yellowish-cinereous pubescence. Head thickly, finely punctate; front acuminate ;

antenne extending to far beyond the hind angles of the prothorax, joint 3 shorter than 2. Prothorax

strongly transverse, slightly narrowed in front, almost parallel behind; the hind angles acutely produced,

not divergent; the lateral carina extending forwards to about the middle, the inferior marginal carina

widely separated from it anteriorly, and strongly sinuous behind; the surface very finely, somewhat

sparsely punctate; the basal plice distinct. Elytra three times the length of the prothorax, and slightly

wider than it, narrowing from about the middle, and somewhat pointed behind; punctate-striate, the

interstices almost flat and sparsely punctured. Prosternum and propleure with widely scattered fine

punctures; metasternum sparsely and finely, the abdomen more closely, punctate; prosternal process

Y-shaped, the triangular intercoxal portion obsoletely margined. Posterior coxal plates slightly dilated

in their inner third.

Length 31, breadth 1 millim.

Hab. Guatemata, Cerro Zunil (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, June 1896. 4A

046 SERRICORNIA.

One specimen. Easily separable from our other species by the four-spotted elytra.

The post-humeral spot resembles an oblique, inverted Y. G. quadrinotatus is nearest

allied to G. fasciatus, but easily separable therefrom by the non-divergent hind angles

of the thorax.

18. Glyphonyx fasciatus.

Moderately elongate, very narrow, shining; black, the elytra testaceous, with the suture and a broad, trans-

verse, indeterminate, ante-median fascia fuscous, the antenne pitchy-brown, with the two basal joints

testaceous, the legs testaceous; thickly clothed with yellowish-cinereous pubescence. Head sparsely,

finely punctate; the reflexed margins of the front meeting at an obtuse angle in the centre; antenne

extending to far beyond the hind angles of the prothorax, joint 8 much shorter than 2. Prothorax

transverse, the sides gradually and arcuately converging from the middle forwards and feebly sinuate

behind; the hind angles very long, slender, and strongly divergent, slightly incurved at the tip; the

lateral carina about reaching the middle, the inferior marginal carina widely separated from it anteriorly,

and sinuate behind; the surface finely and rather sparsely punctate; the basal plice very indistinct.

Elytra three and one-half times longer than the prothorax, and much wider than it, rounded at the sides,

narrowing from the middle, pointed behind; deeply and coarsely punctate-striate, the interstices convex

and sparsely punctured. Prosternum and propleure with widely scattered fine punctures; metasternum

and abdomen finely and rather closely punctate; prosternal process Y-shaped, the triangular intercoxal

portion margined. Posterior coxal plates feebly dilated in their inner third.

Length 3, breadth ,% millim.

Hab. Guatemaua, Purula in Vera Paz (Champion).

One specimen only, no doubt a male, of this peculiar little species has been obtained.

It is not very closely allied to any of the others here described. From G. angulatus it

may be separated by the relatively narrower thorax, the more oval elytra, the differently-

formed prosternal process, &c.; and from G. cruciellus by the much narrower thorax,

with strongly divergent hind angles, the more oval elytra, &c.

19. Glyphonyx cinctus, (Tab. XXIII. fig. 32.)

Moderately elongate, rather robust, shining; rufo-testaceous or testaceous, the elytra with the suture and a

broad transverse median faseia—in some specimens extending to the outer margin, and in others reduced

to a common rhomboidal mark—black or piceous, the sutural stripe sometimes dilated into a triangular

patch at the base; thickly clothed with yellowish-cinereous pubescence. Head closely, finely punctate ;

the reflexed margins of the front meeting at an obtuse angle in the centre; antenne about reaching the

hind angles of the prothorax in the female, a little longer in the male, joints 2 and 3 subequal in length.

Prothorax broader than long, the sides rounded in front and almost parallel behind; the hind angles

acutely produced, not divergent; the lateral carina extending forwards to about the middle, the inferior

marginal carina becoming widely separated from it anteriorly and sinuate behind; the surface somewhat

closely, finely punctate; the basal plice well defined. Elytra two and two-thirds longer than the

prothorax, and of the same width, gradually narrowing from the basal third, obtuse behind; deeply

punctate-striate, the interstices almost flat and rugulosely punctured; epipleure angulate opposite the

hind coxe. Prosternum and propleure sparsely punctate, the punctures on the propleure coarse;

metasternum and abdomen closely, finely punctate, the punctures on the sides of the metasternum

coarser ; prosternal process Y-shaped, margined to beyond the cox. Posterior coxal plates feebly dilated

in their inner third.

Length 3-47, breadth 1-1} millim. (¢ 9.)

Hab. Mexico, Soledad in Vera Cruz (Sallé), Teapa in Tabasco (coll. Janson) ;

British Honpuras, Belize (Blancaneauz).

GLYPHONYX. BAT

Six examples, those from Belize (probably all females) being considerably smaller

and paler than the others. Broader and more robust than G. cruciellus, the thorax a

little more coarsely punctured, the median fascia of the elytra better defined in the

well-marked specimens, the prosternal process more gradually acuminate, with the

smooth posterior portion shorter. The Mexican specimens are rufo-testaceous, with

the elytra testaceous, the dark markings being well-defined in two of them; those from

Belize have a common rhomboidal dark mark on the elytra, in addition to a narrow

sutural stripe. A specimen from Soledad is figured.

20. Glyphonyx cruciellus.

Adrastus cruciellus, Erichs. Zeitschr. fiir Ent. ii. p. 1207.

Glyphony« cruciellus, Cand. Monogr. Elat. iv. p. 456 *.

Moderately elongate, narrow, shining, finely pubescent; testaceous, the disc of the prothorax and the meta-

sternum slightly infuscate in some specimens, the elytra sometimes with the suture, or the suture and a

transverse median fascia, infuscate. Head thickly, finely punctate; the reflexed margins of the front

meeting at an obtuse angle in the centre; antenne extending to far beyond the hind angles of the pro-

thorax in the male, shorter in the female, joint 3 slightly shorter than 2. Prothorax strongly transverse,

the sides rounded in front and feebly sinuate behind ; the hind angles acutely produced and slightly

divergent; the lateral carina extending forwards to beyond the middle, the inferior marginal carina

gradually diverging from it and feebly sinuate behind; the surface sparsely, finely punctate; the basal

plice fine. Elytra three times the length of the prothorax, and of the same width, narrowing from the

basal third, and somewhat pointed behind ; rather coarsely punctate-striate, the interstices feebly convex

and finely punctured; epipleuree angulate opposite the hind coxe. Prosternum and propleura with

widely-scattered rather coarse punctures ; metasternum and abdomen somewhat thickly, finely punctate,

the sides of the metasternum with coarser punctures ; prosternal process Y-shaped, the triangular inter-

coxal portion margined. Posterior coxal plates feebly dilated in their inner third.

Length 23-4, breadth 3-13 millim. (¢ 2.)

Hab. Mextco!?; GuaremMata, Panzos and Cubilguitz in Vera Paz, Zapote

(Champion); Panama, Volcan de Chiriqui (Champion).— CotomBia?; VENEZUELA,

Cumana (coll. Janson, ex Laferté). |

Smaller, narrower, and less robust than G. cinctus; the thorax smoother, and with

the inferior marginal carina more gradually divergent from the lateral one; the

prosternal process more abruptly acuminate; the antenne more elongate. From

G. precox it may be separated by the less divergent thoracic carine; the apparently

less acuminate front (Erichson states! that G. cruciellus is easily separated from

G. precoxr by the truncate angle of the anterior frontal margin) is an illusory character,

The different forms occur at Zapote, and al o in Venezuela. ‘The Chiriqui specimens

are entirely testaceous. I have not seen an example from Mexico.

21. Glyphonyx teapensis.

Short and rather narrow, shining ; varying in colour from piceous to clear rufo- or flavo-testaceous, the antenne

and legs testaceous ; thickly clothed with yellowish-cinereous pubescence. Head finely, rather sparsely

punctate ; the reflexed margins of the front meeting at a somewhat acute angle in the.centre ; antenne

extending to considerably beyond the hind angles of the prothorax in the male, shorter in the female,

joints 2 and 3 subequal in length. Prothorax strongly transverse, the sides rounded and converging

4A2

548 SERRICORNIA.

anteriorly and sinuate andslightly converging behind ; the hind angles acutely produced and feebly divergent;

the lateral carina about reaching the middle, the inferior marginal carina gradually diverging from it and

scarcely sinuate behind ; the surface sparsely, finely punctate ; the basal plicee very fine. Elytra three times

the length of the prothorax, and a little wider than it, eradually narrowing from the basal third, and

somewhat pointed at the apex; finely punctate-striate, the interstices flat and finely punctured; epipleure

angulate opposite the hind coxe. Prosternum and propleure with widely scattered rather coarse punctures ;

metasternum (the sides included) and abdomen closely, finely punctate ; prosternal process Y-shaped,

the triangular intercoxal portion margined. Posterior coxal plates feebly dilated in their inner third.

Length 23-34, breadth 1 millim. (¢ 9 -)

Hab. Mzxico, Teapa in Tabasco (coll. Janson, Hoge, H. H. Smith).

Sent in numbers from Teapa. Less elongate than G. cruciellus and G. precox, and

of the size of the smallest examples of those species, the elytra more finely punctate-

striate, and more gradually narrowed behind, especially in the females. The colour is

even more variable than in G. cruciellus, but there is no trace in any of the specimens

of a sutural stripe or median fascia on the elytra.

22. Glyphonyx parallelus. (Tab. XXIII. fig. 27, underside of prothorax.)

Oblong-oval, convex, narrow, shining; black or piceous, the elytra sometimes brown or brown with the suture

darker, the antennz and legs testaceous; thickly clothed with yellowish-cinereous pubescence. Head

closely, rather coarsely punctate; the reflexed margins of the front meeting at an obtuse angle in the

centre ; antenne about reaching the hind angles of the prothorax, joint 3 slightly shorter than 2. Pro-

thorax a little broader than long, the sides subparallel behind and rounded in front; the hind angles

acutely produced, not divergent ; the lateral carina extending forwards to the middle, the inferior marginal

carina gradually diverging from it and feebly sinuate behind; the surface thickly, somewhat coarsely

punctate, the punctuation becoming finer and more diffuse towards the base; the basal plice long and

well-defined. Elytra about two and three-fourths longer than the prothorax, and of the same width,

gradually narrowing from the basal third, rather obtuse behind ; punctate-striate, the interstices flat and

rugosely punctured. Prosternum and propleure with widely scattered fine punctures; metasternum and

abdomen thickly, finely punctate; prosternal process Y-shaped, the triangular intercoxal portion margined.

Posterior coxal plates feebly dilated in their inner third.

Length 33-43, breadth 1-13 millim. (¢ 9.)

Hab. Mexico, Guanajuato (Sallé), Chilpancingo in Guerrero (Hoge, H. H. Smith),

Amula in Guerrero (1. H. Smith).

Sent in abundance from Chilpancingo in Western Mexico. This small species

chiefly differs from the numerous similarly-coloured forms in its more parallel shape,

the rather obtuse apices of the elytra, and the Y-shaped prosternal process; the

last-mentioned character separates it from G. qguadraticollis and its allies.

23. Glyphonyx minimus.

Rather short, oblong-oval, narrow, shining; black or piceous, sometimes with the hind angles of the prothorax

testaceous and the elytra brownish, the antenne and legs testaceous, the antenne sometimes with joints

4-11 brownish; thickly clothed with yellowish-cinereous pubescence. Head thickly punctured; the

reflexed margins of the front meeting at an acute angle in the centre; antenne extending to a little

beyond the hind angles of the prothorax in the male, shorter in the female, joint 3 shorter than 2.

Prothorax strongly transverse, the sides rounded in front and parallel or feebly sinuate behind; the hind

GLYPHONYX.—MICROGLYPHONYX. 549

angles acutely produced, not or feebly divergent; the lateral carina excessively fine (scarcely visible till

the pubescence is removed and the insect is viewed from the side) and extending to a little beyond the

middle, the inferior marginal carina very gradually diverging from it; the surface finely and rather

sparsely punctate; the basal plice indistinct. Elytra about three times the length of the prothorax, and

of the same width, narrowing from the basal third, and somewhat pointed behind; punctate-striate, the

interstices flat and sparsely, rugulosely punctate. Prosternum and propleure with a few widely scattered

fine punctures; metasternum and abdomen thickly, finely punctate; prosternal process Y-shaped, the

triangular intercoxal portion margined. Posterior coxal plates feebly dilated in their inner third.

Length 22-3, breadth 3-9, millim. (¢ 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Found in abundance in Chiriqui. This is one of the smallest of the Central-

American species. It is allied to G. ebeninus, but is less elongate and not so black ;

the thorax is much more transverse and more closely punctured, and has the lateral

carina so fine as to be scarcely visible, this carina being less divergent from the

inferior one than in G. ebeninus. From G. nigritus it may be known by the very

different form of the prosternal process, as well as by its smaller size, the less convex

and shorter thorax, &c.

MICROGLYPHONYX.

Head deeply sunk into the prothorax, convex ; front acuminate, the margins reflexed and meeting at an acute

angle in the centre immediately above the labrum; the mouth placed beneath ; antennz with the basal

joint stout, nearly as long as joints 2-4 united, 3 much smaller than 2, 4-10 short and somewhat monili-

form, 11 oval, acuminate at the tip; prothorax not margined at the sides, narrowed in front and behind,

with long, acute, posteriorly produced hind angles and fine basal plicee ; scutellum rather large, oval, flat ;

elytra fitting closely to the base of the prothorax, oval, the humeri very oblique, the epipleure rather

broad in front and strongly sinuous and abruptly narrowed opposite the hind coxe; prosternum broad,

convex, with a prominent chin-piece and a Y-shaped process behind, the intercoxal portion of the latter

not margined; prosternal sutures double and excavate in front, becoming coalescent about the middle ;

mesosternum declivous, the borders of the cavity not raised; metasternum very short; posterior coxal

plates slightly dilated in the inner third, becoming excessively narrow outwards; basal joint of the hind

tarsi a little longer than the following two joints united ; fourth tarsal joint lamellate; claws pectinate ;

body apterous.

The minute Elaterid from which the above characters are taken is a close ally of

Glyphonyx ; but differs from it in the complete obliteration of the lateral and inferior

marginal carine of the thorax, the posteriorly coalescent prosternal sutures, the

more moniliform outer joints of the antenne, the very short metasternum, and the

apterous body. ‘The prosternal process is formed as in the third section of Glyphonyz,

except that the intercoxal portion is not margined. The thorax and elytra are both

narrowed towards the base. The insect is unknown to Dr. Candéze. Our specimens

were obtained at a high elevation on the Volcan de Chiriqui, by brushing long grass

in a bamboo-thicket.

550 | - SERRICORNIA.

1. Microglyphonyx coarctatus. (Tab. XXIII. figg. 33; 33, underside of

prothorax.)

Rather short, narrow, shining ; piceous, with the anterior margin and the hind angles or base of the prothorax,

the elytra, the prosternum, and the apex of the abdomen testaceous (the elytra sometimes with the suture

and a patch at the sides slightly darker), or entirely testaceous; the antenne brown, with the two basal

joints testaceous, the legs flavo-testaceous ; thickly clothed with pale yellowish-cinereous pubescence.

Head finely and rather closely punctate; antenne fully half the length of the body in the male, a little

shorter in the female. Prothorax strongly transverse, convex in front, broadest before the middle, con-

stricted and slightly sinuate at the sides behind, the latter rounded in front, the hind angles not divergent ;

the surface closely, finely punctate. Elytra about two and one-half times the length of the prothorax,

and at the middle wider than it, oval, convex; coarsely punctate-striate, the interstices convex and very

sparsely punctured. Prosternum and propleure sparsely, coarsely punctate, the rest of the under surface

more closely and more finely punctured.

Length 2-24, breadth 7-3 millim. (¢ Q.)

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

Nine examples.

Group CAMPYLINI.

CYLINDRODERUS.

Cylindroderus, Eschscholtz, in Silb. Rev. Ent. iv. tab. (1836) ; Candéze, Monogr. Elat. iv. p. 508.

An American genus containing eight named species, one of which is from Mexico,

the others being from various parts of the South-American continent ; an additional

species from Guatemala is described below.

1. Cylindroderus mexicanus.

Cylindroderus mexicanus, Cand. Monogr. Elat. iv. p. 506°.

Hab. Mexico, Cordova, Toxpam, Vera Cruz (Sallé +), Teapa in Tabasco (H. H. Smith).

The type of this species is a male. The female has much shorter antenne, and the

thorax broader behind the middle, with the marginal carina distinct to near the

apex. The single specimen from Vera Cruz has the head and thorax ferruginous

and the elytra piceous. The example from Cordova was placed with Aptopus campy-

linus in the Sallé collection.

2. Cylindroderus cribricollis. (Tab. XXIV. fig. 2, ¢.)

3. Elongate, narrow, rather dull ; reddish-brown or brownish-testaceous, the base of the head and the suture

of the elytra sometimes infuscate, the antenne brown or ferruginous, the legs brownish, with the tibie

usually infuscate, the metasternum and abdomen piceous or fusco-ferrugiuous ; somewhat thickly clothed

with long fulvo-cinereous hairs, those on the upper surface semierect. Head densely and very coarsely

umbilicate-punctate; antenne nearly two-thirds the length of the body, joints 2 and 3 very short, sub-

equal, the two together not so long as 4, the following joints very elongate and considerably widened.

Prothorax as long as broad, subquadrate, the sides feebly sinuate behind, not margined ; the hind angles

moderately produced and slightly divergent, carinate laterally ; the surface very coarsely, closely umbili-

cate-punctate, with a more or less distinct narrow space down the middle impunctate. LElytra nearly

CYLINDRODERUS.—OCTINODES. 551

four times the length of the prothorax, and much wider than it, very gradually narrowing from the base ;

coarsely and deeply punctate-striate, the interstices not or very little wider than the punctures of the

striae, convex (flatter in some specimens), and somewhat thickly punctured. Prosternum and propleure

very coarsely, the metasternum and abdomen rather finely, punctate. Legs elongate, the intermediate

and hind pairs with the tarsi considerably longer than the tibis.

Length 6-63, breadth 13-12 millim.

Hab. Guatemata, El Tumbador, Las Mercedes, Cerro Zunil (Champion).

Five specimens, all from the Pacific slope, from elevations between 2500 and 4000

feet. Paler and a little more elongate than C. megxicanus, with the thorax more

quadrate, the punctures of the elytral stria much coarser, and the tarsi relatively

longer.

OCTINODES.

Octinodes, Candéze, Monogr. Elat. iv. p. 487 (1863).

The three known species of this genus are all from Tropical South America; a

fourth is now added from the State of Panama.

1. Octinodes carinatus. (Tab. XXIV. fig. 1, ¢.)

3. Elongate, rather narrow, scarcely shining ; fulvo-testaceous, the head in front, the mandibles, and scutellum

piceous, the elytra testaceous, the metasternum, abdomen, eyes, and antenn black, the legs piceous, with

the femora fusco-testaceous; above thickly clothed with long, semierect fulvous pubescence, beneath

with decumbent fulvo-cinereous hairs. Head swollen on each side above the point of insertion of the

antenne, very coarsely, confluently punctate, the eyes large and prominent; antenne with the fourth

and following joints each furnished with a very long, slender ramus—that on the fourth and last joints

shorter than the others, which are excessively elongate,—the rami all thickly clothed with long fine hairs,

Prothorax subquadrate, slightly narrowing forwards; the hind angles very long and strongly divergent,

obsoletely carinate at the tip; the surface coarsely, closely punctate, the punctures here and there

confluent, obsoletely canaliculate. Scutellum closely, finely punctate, with a smooth raised line down the

centre. Elytra nearly four times the length of the prothorax, and much wider than it, parallel to a little

beyond the middle; coarsely punctate-striate, the interstices convex and closely punctured. Prosternum

and propleur sparsely, the metasternum and abdomen closely, rather coarsely punctate, the inner part

of the propleure smooth. Legs rather slender.

Length 10, breadth 23 millim.

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One example. Closely allied to O. capillatus, Cand. (the type of which is contained

in the Janson collection), from Colombia and Venezuela, which is sometimes similarly

coloured ; but differing from it in the carinate scutellum, the more slender limbs, and

the shorter ramus on the fourth antennal joint, as well asin its smaller size and

narrower shape.

SUPPLEMENT.

HEMIRHIPUS (p. 271).

1(a). Hemirhipus ferrugineus. (Tab. XXIV. fig. 3.)

Hemirhipus ferrugineus, Cand. Elat. Nouv. v. p. 15 (1893) *.

Hab. GUATEMALA 1.

Dr. Candéze has kindly forwarded the type of this insect for examination. It is

extremely like H. d¢maculatus, from which it differs in its larger size and much more

elongate elytra, the latter with the third and fifth interstices broader than the others

towards the apex; the type of H. dimaculatus is, no doubt, a male, and that of

H. ferrugineus a female, the latter having the scutellum abnormally formed. H. ferru-

gineus itself is probably a variety of the Colombian H. fairmairei, Cand., with the

black markings on the thorax reduced in size; it is recorded by Candéze himself in his

‘Catalogue Méthodique’ as from Central America.

The descriptions of Hemirhipus ferrugineus and Chalcolepidius monachus were not

seen in time to enable me to insert the species in their proper places.

CHALCOLEPIDIUS (p. 272).

7. Chalcolepidius apacheanus.

Chalcolepidius apacheanus, Casey, Ann. New York Acad. vi. p. 16 (1891)?.

Chalcolepidius webbi, huj. op. p. 278, t. 11. fig. 23 (nec Lec.) ’.

Hab. Norra America, Arizona !.—Mexico, Chihuahua city (Hége?).

Since my remarks on C. webbi were published we have received a beautiful male

example of the species from Mr. Wickham, from Yuma, California; it has the apical

joint of each tarsus, and the anterior and intermediate tibie ciliate *, as in the males

of C. lacordairet &c. From a renewed examination of these specimens I am now con-

vinced that the abraded Mexican females from Chihuahua referred by me to C. webdi

really belong to C. apacheanus, Casey, and that the two insects are specifically distinct.

The Mexican specimens, which vary from 28-37 millimetres in length, differ from

C. webbi in the relatively longer thorax (in C. apacheanus it is described as one-fifth

longer than wide), with the larger punctures on the anterior part coarser and more

numerous, and the more deeply impressed head. The few remaining small scales on

* The words “except in C. webbi” should be erased from the Table on p. 273.

SERRICORNIA (ELATERID£). 553

the dorsum are brownish-olivaceous, instead of dark blue, as described by Capt. Casey.

It is possible that the Mexican specimens may prove to belong to yet another species,

but in the absence of a typical C. apacheanus for comparison it is inadvisable to name

it. Moreover, Capt. Casey has incorrectly identified the sex of the specimens he

describes, and what he supposes to be the male is really the female. Many of the

species of Chalcolepidius vary enormously in size, and also in the colour of the small

scales on the dorsum ; these characters are, as a rule, of little or no value in distin-

guishing the various forms.

8 (a). Chalcolepidius monachus.

Chalcolepidius monachus, Cand. Elat. Nouv. v. p. 16 (1893) *.

Hab. Mexico, Chihuahua}.

The type of this insect (kindly lent by Dr. Candéze) is an abraded female. It is, in

my opinion, a small varietal form of C. lacordairei, with the longitudinal ruge of the

- thorax coarser than usual. The puncturing of the elytral strize (which cannot be seen

till the scales are removed, and is stated to be coarser in C. monachus than in C. lacor-

dairet) is similar, and the brownish-olivaceous colour of the scales is of no importance,

as we have eight specimens of C. /acordairet from Mexico with the scales thus coloured,

as well as others in which they are greenish, instead of blue.

SEMIOTUS (p. 287).

7 (a). Semiotus carus. (Tab. XXIV. fig. 4, 3.)

Semiotus carus, Jans. Cist. Ent. iii. p. 34, t. 1. fig. 2 (2) (1882) *.

Var. The elytra with the sides from the basal fourth to the apex very broadly, and a rather broad sutural

stripe, black.

Semiotus antennalis, Cand. Elat. Nouv. vi. p. 16 (1896) *.

Hab. Panama, Veraguas 7.—Ecuapor, Chiguinda!.

Of this interesting addition to the Central-American fauna Dr. Candéze has recently

received a specimen from Dr. Staudinger. The Panama insect (¢), for the loan of

which we are indebted to Dr. Candéze, and from which our figure is taken, merely

differs from the types (¢ and @) of S. carus in having the black marginal stripe of

the elytra more extended inwards.

OISTUS (p. 292).

3. Oistus suturalis. (Tab. XXIV. fig. 5.)

Elongate, broad, robust, flattened above, shining, the elytra subopaque ; head and antenne black, the prothorax

and scutellum rufo-ferruginous, the elytra black with a greenish lustre, with the suture to the first row

of punctures and the exterior limb rufo-ferruginous, the under surface rufo-ferruginous, with the abdomen

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1896. 4B

554 SUPPLEMENT.

in great part black, the legs piceous, the coxe rufo-ferruginous ; when fresh, probably with the upper

surface densely clothed with short golden pubescence (most of which is rubbed off in the single specimen

obtained), beneath with the sides densely, and the other parts sparsely, clothed with golden pubescence.

Head densely, finely punctate, broadly depressed in front, the sides of the front appearing raised ; antenne

extending beyond the hind angles of the prothorax, joint 3 twice as long as 2, 3 a little shorter and

narrower than 4 (10 and 11 broken off), Prothorax trapezoidal, at the base nearly twice as broad as

long, the sides slightly sinuate behind, the apex deeply emarginate on either side, the base trisinuate and

very distinctly crenulate, the hind angles divergent ; the surface densely, very minutely punctate, and with

some scattered coarser punctures on the disc, a rather broad space down the centre (which appears slightly

raised in front), and a small patch on either side of the disc before the middle midway between this and the

lateral margin, impunctate. Scutellum densely, very minutely punctate. Elytra four and one-half times

the length of the prothorax, and a little wider than its basal portion, subparallel to beyond the middle

and narrowing thence to the apex, the apical margin slightly sinuate, with the sutural angles sharp ;

finely seriate-punctate, the punctures placed in shallow grooves, the interstices feebly convex and densely,

very minutely punctate ; the humeri and the base of the third interstice considerably swollen. Beneath

sparsely, the propleure and sides of the metasternum closely, punctate, the punctures on the propleure

exceedingly fine.

Length 133, breadth 43 millim.

Hab. Mexico, Cordova (Sallé).

One specimen, placed with the series of Hypodesis sericea in the Sallé collection, an

insect somewhat closely resembling it in general appearance. O. sutwralis may be at

once separated from the two other known species of the genus by the short trapezoidal

thorax and peculiar coloration.

ATRACTOSOMUS (p. 297).

Atractodes, Candéze, Cat. Méthod. Elat. p. 63.

Dr. Candéze, in his ‘ Elatérides Nouveaux,’ v. p. 72 (1893), has recorded a species of

the genus, under the name of A. illinitus, as from ‘“ Yucatan”: the reference to

Yucatan, he informs me, is incorrect, the insect being from Merida, Venezuela.

_ ANOPLISCHIOPSIS (p. 301).

Anoplischiopsis lineatocollis (p. 303). (Tab. XXIV. fig. 8, 3.)

To the localities given, add:—Costa Rica (coll. Janson); Panama, Volcan de

Chiriqui 2500 to 4000 feet (Champion).

The description of this species was based upon a small, pallid, somewhat immature

female example. Additional specimens have since been detected, and they differ

greatly from the type in colour, and also in being more elongate. The four examples

(¢ and @) from the Volcan de Chiriqui have the head, a inedian vitta on the thorax

(narrowed in front and behind), and the tips of the hind angles, the scutellum, and a

broad sutural stripe on the elytra (widening to a little beyond the middle, and narrowing

again behind), as well as a narrow marginal stripe extending forwards to the middle,

and the apex to a greater or less extent, black, the under surface also being black, with

SERRICORNIA (ELATERIDZ) 508

the exception of the outer part of the propleure; the rest of the thorax is rufo-

testaceous, and of the elytra testaceous or flavo-testaceous. The male has much longer

antenne than the female, with the joints 4-10 broadly and acutely triangular. These

examples have the thorax sinuate at the sides behind, so that the long hind angles

appear strongly divergent, and the elytral interstices feebly convex and sparsely punc-

tured. The single specimen (a small male) from Costa Rica represents yet another

variety. It has the black median vitta on the thorax still broader and the apical patch

on the elytra occupying rather more than their posterior third, the suture thence to

the base being broadly black. The largest of the additional specimens measures

10 millim. in length and 2 millim. in width. A male from the Volcan de Chiriqui is

now figured.

5 (a). Anoplischiopsis trinotatus. (Tab. XXIV. fig. 9, 2.)

Moderately elongate, rather broad, shining; the head black or ferruginous, the prothorax fulvo-testaceous,

with a median vitta and an abbreviated marginal stripe black (the latter piceous in one specimen), the

scutellum black, the elytra fulvo-testaceous, with a large spot on the outer part of the disc a little beyond

the middle (not reaching the margin) and the apex black; the antenna, legs, and under surface, the

propleurse excepted, black or piceous ; somewhat thickly clothed with long, decumbent pubescence, which

on the upper surface partakes of the ground-colour, that on the lower surface yellowish-cinereous. Head

coarsely, closely punctate, the frontal carina flexed downwards in the middle and not very prominent ;

antennse about reaching the hind angles of the prothorax, joint 3a little longer than 2, the following

joints moderately dilated, triangular. Prothorax about as long as broad, the sides gradually and arcuately

converging from the basal third, sinuate behind; the hind angles strongly produced, acute, and slightly

divergent, sharply carinate ; the surface finely, sparsely punctate, deeply canaliculate behind. Elytra

about two and four-fifths longer than the prothorax, gradually narrowing from the middle and conjointly

rounded at the apex; finely punctate-striate, the interstices convex throughout and somewhat thickly

punctured. Beneath finely, rather sparsely punctate, the propleure with widely scattered punctures.

Length 83, breadth 23 millim. ( 9.)

Hab. Nicaraaua (Sallé), Chontales (Belt).

Twoexamples. Closely allied to d. dineatocollis, but broader and more parallel than

the female of that species, with the sides of the thorax infuscate or marked with black,

and the elytra very differently marked, the apex and a post-median spot on the outer

part of the disc of each being black.

ANOPLISCHIUS (p. 505).

Anoplischius atractodes (p. 309).

To the localities given, add :—Guatemata, Teleman in Vera Paz (Champion).

Anoplischius mexicanus (p. 309).

To the localities given, add :—GuateMata, Senahn in Vera Paz (Champion).

4B2

556 SUPPLEMENT.

MEGAPENTHES (p. 377).

6. Megapenthes bicostatus.

Megapenthes bicarinatus, huj. op. p. 880 (nec Lewis).

The name bicostatus is substituted for dicarinatus, the latter being preoccupied in

the genus.

ANCHASTOMORPHUS (p. 399).

Anchastomorphus quadriguttatus (p. 401).

To the localities given, add :—Mexico, Yucatan (Pilate, in coll. Janson).

There is a specimen of the black variety of this species in the Janson collection

labelled Oophorus minutus, Pilate ; it appears to have been examined by Dr. Candéze

and determined by him as Glyphonya sp.t I have already alluded to the extremely

close superficial resemblance of this genus to Anchastomorphus.

AGRYPNELLA (p. 414).

Heterostethus, Schwarz, Deutsche ent. Zeitschr. 1896, p. 147.

Agrypnella squamifera (p. 415).

Heterostethus pictus, Schwarz, loc. cit. p. 147.

This species has been recently described by Schwarz upon specimens from Paraguay ;

his name must, of course, be dropped as a synonym (see Ent. Monthly Mag. xxxu.

p- 161).

SCAPTOLENUS. 507

Fam. CEBRIONIDA*.

This family is represented in Central America by a single genus only, Scaptolenus,

which has its head-quarters in Mexico and Guatemala, extending northwards to Texas

and southwards to the Isthmus of Panama.

SCAPTOLENUS.

Scaptolenus, Leconte, Trans. Am. Phil. Soc. x. p. 504 (1853) ; Chevrolat, Ann. Soc. Ent. Fr. 1874,

p- 506; Horn, Trans. Am. Ent. Soc. ix. p. 83.

Chevrolat, in his “ Revision des Cébrionides,” enumerated twenty-one species of this

genus, all but one or two being from our region, whence several others are now added.

Altogether, eleven species are known from single examples only, and it is highly

probable that when additional specimens of some of these are available for examination

they will prove to be not really distinct. The females are excessively rare, and only

four specimens, belonging to as many species, have been seen, and it is by no means

certain that all these have been assigned to their proper partners. The males, too,

in most cases, are very rarely obtained ; those of 8. femoralis and S. rubriventris have,

however, been found in some numbers. According to Chevrolat, the females are

apterous; but this is a mistake, as the abbreviated wings are plainly visible in the

three specimens described by him. The three North-American species enumerated by

Dr. Horn, all from Texas, are known from males only. The males of these insects are

chiefly found upon leaves, but they are sometimes attracted to light. The females

bear a superficial resemblance to various Melolonthide, and this is accentuated by

their peculiar short clubbed antenne.

The following table, based upon the males only, may be of service in identifying the

numerous species; it must, however, be used with caution, as there is a complete

gradation in the form of the antenne from one section to another. S. swlcipennis and

S. subapicalis have been somewhat doubtfully identified from the descriptions; but of

the other species enumerated by Chevrolat the types (several of which are contained in

M. René Oberthiir’s collection) have been available for examination.

a, Antenne strongly serrate from the fourth joint; prothorax villose, the hairs

fulvous ; elytra attenuate, at the base much broader than the prothorax +.

a'. Body broad and robust; penultimate joint of the maxillary palpi not

stouter than the apical joint ; prothorax densely clothed with very

long fulvous hairs; elytra gibbous, rather deeply sulcate ; anterior tibic

with the median tooth acute . . . . 2. 2... we eee feels.

* By G. C. Cuampron. ;

tT The North-American S. leconiei, Chevr., belongs to this section.

558. SERRICORNIA.

6’. Body narrower; penultimate joint of the maxillary palpi stouter than the

apical joint; prothorax more sparsely clothed with long fulvous hairs;

elytra less gibbous, more elongate, and feebly sulcate; anterior tibie

with the median tooth obtuse. . . . . . . 2 ee oe ee palpalis.

6. Antenne with the fourth and following joints more or less acutely dilated at

the apex ; prothorax villose, the hairs pallid or fulvous; elytra at the base

much broader than the prothorax.

c!, Elytra gibbous, rather short, attenuate.

a", Elytra feebly sulcate; antennee moderately elongate . . . . . . vagans.

ob". Elytra deeply sulcate; antenne very elongate. . . . . . . . . acutangulus.

d'. Elytra flatter, elongate, subparallel ; antennze with the outer joints more

strongly dilated at the apex... we. ww ee ee ee ee mmplipennis.

c. Antenne moderately or feebly serrate from the fourth joint *.

e'. Prothorax villose.

c!, Elytra gibbous and strongly attenuate, at the base much broader than

the prothorax, the latter not twice as broad as long.

a, Head, prothorax, and breast thickly clothed with very long blackish

or fuscous hairs ; eyes prominent.

a‘, Elytra rather short, attenuate, deeply sulcate and striate. . . . guttiventris.

6‘. Elytra elongate and abruptly attenuate, feebly suleate . . . . hirticollis.

6", Head and prothorax clothed with very long fuscous hairs, the breast

with fulvous hairs; elytra short and striate; eyes small and not

prominent .. . californicus.

ec, Head, prothorax, and breast clothed with long pallid hairs ‘elytra

very deeply sulcate 2. ee sulcipennis.

d", Elytra more parallel, very little narrowed behind; prothorax much

narrower than the elytra, twice as broad as long ; head, prothorax, and

breast with long fulvous hairs; mandibles elongate, becoming slender

outwards, with a short tooth near the middle. . . . . . . . . acrognathus.

f’. Prothorax clothed with shorter hairs, which are fulvous in colour, the

breast with long fulvous hairs; prothorax nearly as broad as the elytra,

dilated anteriorly, and with short hind angles; elytra oval, moderately

long ; antenne short and slender, distinctly serrate . . . laticollis.

d. Antenne with the joints from the fourth subparallel or very little dilated at

the apex.

g'. Prothorax villose, the hairs long and semi-erect.

e", Prothorax not twice as broad as long.

d'", Elytra gibbous, attenuate.

c’. Head, prothorax, and breast clothed with very long fulvous or

pallid hairs.

a’, Elytra short, not distinctly costate.

* The North-American S. estriatus, Lec., and S. ocreatus, Horn, no doubt belong to this section.

SCAPTOLENUS.

a°. Prothoracic villosity dense; elytra deeply sulcate ; prothorax

dilated anteriorly. 2. 2. 2. 1 1 1 ew ee ee ee

6°. Prothoracic villosity rather sparse; elytra feebly sulcate ;

prothorax less dilated anteriorly . -

*, Elytra moderately elongate, sulcate and distinctly costate ; pro-

thorax not dilated anteriorly . .

ad’. Head and prothorax clothed with long intermixed fuscous and

fulvous hairs, the breast with fulvous hairs ; prothorax dilated

anteriorly and constricted behind ‘ woe oe

e, Elytra more parallel, very little narrowed behind ; prothorax much

narrower than the elytra, constricted behind, with long narrow hind

angles; head and prothorax clothed with long blackish hairs, the

breast with fulvous hairs. woe ee ee

f". Prothorax very short, twice as broad as long, much narrower than the

elytra.

~ fl", Head and prothorax sparsely clothed with very long, erect, inter-

mixed brownish and fulvous hairs, the breast with paler hairs ;

elytra elongate, gradually narrowing behind, distinctly striate ;

antenne rather stout, moderately long . . .....4.2.~.

g'". Head and prothorax sparsely clothed with moderately long, semi-

erect, fuscous hairs, the breast also with fuscous hairs; elytra

elongate, subparallel, not striate; antenne elongate.

e*, Apical joint of the maxillary palpi longer than the preceding joint ;

elytra rather finely punctate, with scattered coarse impressions at

the apex . . . 2 oe

f*. Apical two joints of the maxillary palpi elongate, equal i in length ;

elytra more coarsely punctured, without coarser impressions at

the apex 2 se ee . . oe

h’. Prothorax clothed with short, decumbent, pallid or falvous hairs, not

twice as broad as long, dilated anteriorly.

g'. Prothorax distinctly narrower than the elytra, the latter attenuate.

Al", Elytra very deeply sulcate

#", Hlytra shallowly suleate . 2... 2. 1 ww

h', Prothorax nearly or quite as broad as the elytra.

jl. Elytra very elongate and subparallel; femora luteous; prothorax

and elytra fulvous-brown. . . .. .

kl", Elytra less elongate, more or less narrowed behind.

g. Femora infuscate

h*, Femora luteous or flavous.

c. Body robust; elytra rather strongly attenuate ; prothorax and

elytra castaneous

a’, Body more slender.

c’, Elytra comparatively short ;- prothorax and elytra more or

less castaneous, the latter sometimes blackish at the apex.

509

villosus.

moufitett.

pueble.

candezet.

nigriceps.

brevicollis.

gehini.

ruficornis.

revestitus.

subapicalis.

chevrolati.

rubriventris.

guerini.

560 SERRICORNIA.

a’. Elytra with coarse impressions at the apex; prothorax

sometimes marked with black ; third joint of the antenne

considerably longer than the second . a

b’. Elytra without coarse impressions at the apex; third

joint of the antennz scarcely longer than the second . . teapensis.

d’. Elytra moderately elongate.

signaticollis.

c’. Antenne not very elongate.

a’. Prothorax and elytra usually black or piceous, the pro-

thorax sometimes fulvous; elytra rather finely punctured. femoralis.

b°. Prothorax and elytra obscure rufo-testaceous ; elytra

coarsely punctured . . . 1. 1 ee ee ees Obscuriceps.

d’. Antenne very elongate, slender; prothorax and elytra

pitchy-brown 2. 2 2 1 1 ee ee ee eee « longicornis.

1. Scaptolenus fulvus. (Tab. XXV. figg. 1, 1a, ¢.)

3. Scaptolenus fulvus, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 508, 510°.

&. Scaptolenus gibbus, Chevr. loc. cit. pp. 508, 511°.

Hab. Mexico (coll. Obverthiir), Pinos Altos in Chihuahua (Buchan-Hepburn), Guana-

juato (Sallé 1), Etla in Oaxaca (Sallé *).

In this species the elytra are broad and gibbous at the base and strongly narrowed

behind; the apical joint of the maxillary palpi is about as long as the preceding; the

antenne are strongly serrate from the fourth joint; and the head, thorax, femora, and

under surface are thickly clothed with very long fulvous hairs, the elytra with much

shorter pubescence.

Eight examples are before me, including the types in the Sallé collection. S. gibbus

differs from 8. fulvus in having the elytra a little more deeply sulcate and not quite so

closely punctured. Both occur at Etla. The North-American S. lecontei, Chevr.

(=femoralis, Lec.), is extremely like S. fudvus, but it is larger and more robust and

has a less transverse thorax. <A specimen from Etla is figured.

2. Scaptolenus palpalis.

dé. Elongate, moderately broad, strongly narrowed behind, rather shining; head, prothorax, and scutellum

black, the elytra piceous, with the apical half indeterminately darker, the mandibles castaneous, black

at the tip, the body beneath and the femora fulvous, the antenne, tibie, and tarsi reddish-brown ;

the head, prothorax, scutellar region, femora, and breast somewhat thickly clothed with long fulvous

hairs, the rest of the elytra sparsely pubescent, the marginal hairs fulvous. Head coarsely, unequally

punctate, the eyes very large and prominent; mandibles short, abruptly incurved from the middle;

penultimate joint of the maxillary palpi stout, stouter and slightly longer than the apical joint ; antenne

moderately elongate, joint 3 twice as long as 2, the following joints broadly and somewhat abruptly

dilated at the apex, 4 twice as long as 3, 11 abruptly constricted before the apex, with the apical portion

narrow. Prothorax nearly twice as broad as long, rounded but not dilated at the sides anteriorly, with

the hind angles divergent and moderately produced; the surface thickly, finely punctate. Scutellum

densely punctured. LElytra a little more than three times the length of the head and prothorax, and

considerably wider than the latter, rapidly narrowing behind; feebly sulcate, except at the base, with

SCAPTOLENUS. 561

the interstices narrowly, vaguely costate, and thickly, finely punctate. Anterior tibie with the median

dilatation obtuse, the apical tooth long.

Length 163, breadth 6 millim.

Hab. Mexico, Parras in Coahuila (Dr. Palmer).

One mutilated specimen. Belongs to Chevrolat’s second division of the genus,

differing from S. vagans in the stouter palpi, with the penultimate joint thicker than

the apical one, the more strongly serrate antenne, the larger eyes, the broader thorax,

with less produced hind angles, and the obtuse median tooth of the anterior tibie.

The less elongate, more strongly serrate antenne, the feebly sulcate elytra, and the

form of the maxillary palpi separate it from S. acutangulus. From S. fulvus and

S. lecontei, Chevr., it may be known by its less robust, narrower shape, longer elytra,

sparser villosity, the form of the palpi, &c.

3. Scaptolenus vagans. (Tab. XXV. fig. 2, 3, antenna.) :

3 2. Scaptolenus vagans, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 508, 512, t. 1. figg. 1 (8),

2,2a,b(9)°.

Hab. Mexico (coll. Oberthiir, ex Chevrolat), La Parada in Oaxaca (Boucard, Sallé+).

The types (¢ and 2) of this species are contained in the Sallé collection, and

there is also a male of it in M. René Oberthiir’s collection. In S. vagans (3) the

antennal joints 4-10 are somewhat acutely produced at their inner apical angle; the

thorax is very much narrower than the elytra, and not dilated at the sides in front ;

and the elytra are broad and gibbous at the base, rapidly narrowing posteriorly, and

moderately elongate. The head, thorax, scutellar region, and breast are thickly clothed

with very long fulvous hairs. The apical two joints of the maxillary palpi are equal

in length. An antenna of the male is figured.

4, Scaptolenus acutangulus. (Tab. XXV. figg. 3, 3a, ¢.)

$. Elongate, broad, much narrowed behind, feebly shining ; head, prothorax, and scutellum black, the man-

dibles castaneous, black at the tip, the antenne infuscate, the elytra and the body beneath piceous, the

apical margins of the ventral segments testaceous, the femora flavous, the tibiee and tarsi obscure reddish-

brown; the head, prothorax, scutellar region, and femora thickly clothed with long pale fulvous hairs,

the rest of the elytra sparsely pubescent, the margins fimbriate, the ventral segments with long scattered

fulvous hairs. Head very sparsely, coarsely, unequally punctate, the eyes large and prominent; mandibles

short, abruptly incurved at the middle, the basal portion stout ; maxillary palpi long and rather slender,

the apical two joints equal in length ; antenne very elongate, joint 3 twice as long as 2, and 4 nearly three

times as long as 8, the joints from the fourth abruptly and angularly dilated at the inner apical angle,

11 constricted at about one-third from the apex, with the apical portion narrow. Prothorax about three-

fifths broader than long, rounded at the sides anteriorly, slightly constricted behind, with very long,

slender, divergent hind angles; the surface thickly, rather finely punctate, depressed along the middle.

Scutellum densely punctured. Elytra three times the length of the head and prothorax, and much wider

than the latter, rapidly narrowing posteriorly, gibbous at the base and flattened on the disc; deeply

sulcate, with the interstices convex, and rather sparsely, finely punctate.

Length 15, breadth 52 millim.

Hab. Mexico, Jalacingo in Vera Cruz (Hoge).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1896. 4¢

562 SERRICORNIA.

One example. Belongs to Chevrolat’s second division of the genus, differing from

the male of the only species included in it by him, S. vagans, in the deeply sulcate,

more attenuate, and sparsely punctured elytra, the more elongate antenne, with the

joints from the fourth more abruptly dilated at the apex, and the larger thorax.

From &. sulcipennis it may be separated by the form of the antenne, as well as by

the broader and more attenuate elytra.

5. Scaptolenus amplipennis. (Tab. XXV. figg. 4, 4a, 6.)

&. Scaptolenus amplipennis, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 508, 515°.

Hab. Mexico (Sallé *).

Unique in the Sallé collection. This insect is testaceous in colour, with the long

hairs on the head, thorax, and under surface fulvous, and the hairs at the sides of the

elytra beyond the middle fuscous. The antenne have the joints from the sixth

somewhat strongly dilated at the apex, the fourth and fifth also a little widened at the

tip. The apical two joints of the maxillary palpi are about equal in length. ‘The

thorax is nearly twice as broad as long and a great deal narrower than the elytra, with

the hind angles extremely long and slender. The elytra are broad, a little narrowed

posteriorly, somewhat flattened on the disc, faintly striate, with the interstices costate

at the base and almost flat beyond, and somewhat thickly punctured.

6. Scaptolenus guttiventris. (Tab. XXV. figg. 5, 5a, ¢.)

g. Scaptolenus guttiventris, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 525 °.

Hab. Mexico (coll. Oberthiir, ex Chevrolat & Mniszech), Etla in Oaxaca (Sallé ').

Described from five male examples, four of which are before me. In M. René

Oberthiir’s collection there is also a varietal form of the male with the elytra fusco-

testaceous in colour. WS. guttiventris may be distinguished from all our other species,

S. hirticollis excepted, by the long, dense, fuscous villosity of the head, thorax,

scutellar region, femora, and under surface. The antenne are distinctly serrate from

the fourth joint ; the eleventh joint is abruptly constricted before the apex, with the

apical portion narrow. ‘The apical two joints of the maxillary palpi are subequal in

length. ‘The thorax is nearly twice as broad as long, much narrower than the elytra,

rounded but not dilated at the sides anteriorly, with excessively long, slender, divergent

hind angles. ‘The elytra are broad and convex at the base, considerably narrowed

posteriorly, deeply sulcate and distinctly striate (except at the base), with the interstices

convex and rather coarsely punctured. A specimen from Etla is figured.

SCAPTOLENUS. 563

7. Scaptolenus hirticollis. (Tab. XXV. figg. 6, 6a, ¢.)

3. Elongate, moderately broad, attenuate behind, slightly shining; head, prothorax, and scutellum black,

the prothorax obscure castaneous at the sides; the mandibles castaneous, black at the tip; the antenne

ferrugineo-testaceous, with the three basal joints partly piceous; the elytra fusco-testaceous ; the body

beneath and the femora flavous, the breast and the apex of the abdomen infuscate, the tibie and tarsi

reddish-brown ; the head, prothorax, scutellar region, femora, and breast densely clothed with very long

blackish hairs, the long marginal hairs of the elytra also black, the rest of the elytral pubescence short

and partaking of the ground-colour. Head sparsely, coarsely, unequally punctate; eyes large and

prominent ; mandibles short, abruptly incurved at the middle, the basal portion very stout; maxillary

palpi with the apical two joints equal in length; antenne rather short, feebly serrate, joint 3 twice as

long as 2, 4 rather more than twice as long as 3, 11 obliquely truncate at the apex. Prothorax short,

nearly twice as broad as long, rounded but not dilated at the sides anteriorly, with greatly produced,

slender, divergent hind angles; the surface thickly, finely punctate. Scutellum densely punctured.

Elytra very elongate, about three and one-third times the length of the head and prothorax, moderately

gibbous at the base, very much wider than the prothorax, and abruptly narrowed from about the basal

third; thickly, rather finely punctate, each with five vague narrow coste on the disc, the interspaces

appearing broadly and shallowly sulcate.

Length 17, breadth 63 millim.

Hab. Guatemata, Tecpan in the Los Altos region (Conradt).

One specimen. This insect somewhat resembles S. amplipennis, but it has the

antenne short and feebly serrate, the long hairs on the head, thorax, and breast are

almost black, and the elytra are abruptly narrowed from the basal third, and narrowly,

vaguely costate, without trace of strie. In the very elongate, abruptly narrowed elytra

it differs from all the allied forms. The only other known species with very long dark

villosity on the thorax and breast is 8, guttiventris.

8. Scaptolenus californicus. (Tab. XXV. figg. 7, 7, ¢.)

3. Scaptolenus californicus, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509', 524°.

Hab. Norru America, ? California ?.—Mexico }.

There are two specimens of this species in M. René Oberthiir’s collection, both

labelled “California.” As Chevrolat! also gives “ Mexico” as a locality, and Dr. Horn

has expressed his opinion that the insect is really Mexican, I include it in our list.

S. californicus is allied to S. guttiventris, from which it differs as follows:—The eyes

are much smaller and less prominent, the head thus appearing smaller; the thorax is

relatively narrower and less transverse; the elytra are much shorter, appearing more

narrowed behind, and piceous in colour, with about the basal third indeterminately

testaceous; and the long hairs on the breast are fulvous. The antenne, palpi, and

mandibles are similarly formed in the two species. ‘The long hairs on the head and

thorax are fuscous in colour.

9. Scaptolenus sulcipennis.

$. Scaptolenus sulcipennis, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 508, 514°.

Hab. Mexico (coll. Jekel1; coll. Oberthiir).

402

564 SERRICORNIA.

In M. René Oberthiir’s collection there are three males of a Scaptolenus which seem

to be referable to this species, the type of which I have not seen. These specimens differ

from 8. revestitus in having the antennal joints 4-10 more distinctly serrate, and the

thorax relatively narrower, less dilated at the sides anteriorly, and clothed with long,

erect, fulvous hairs.

10. Scaptolenus acrognathus. (Tab. XXV. figg. 8, 8a, 3.)

é. Elongate, moderately broad, a little narrowed behind, rather shining; head and scutellum black, the

mandibles castaneous, black externally and at the tip, the antenne brown, with the basal joints black,

the prothorax piceous, paler at the sides, the elytra pitchy-brown, paler near the scutellum, the body

beneath and the femora flavous, the tibixe and tarsi piceous; the head, prothorax, scutellar region, breast,

and femora somewhat thickly clothed with very long fulvous hairs, the ventral segments with long

scattered hairs, the rest of the elytra sparsely pubescent, the margins fimbriate. Head coarsely, sparsely,

unequally punctate, the eyes moderately large and prominent; maxillary palpi with the apical joint

slightly longer than the preceding ; mandibles very long and curved, stout at the base, becoming slender

outwards, each with a very short but distinct tooth on the inner edge a little beyond the middle; antenne

rather short, joint 3 about twice as long as 2, 4 nearly twice as long as 3, the joints from the fourth

gradually becoming more produced at their inner apical angle, 11 obliquely truncate at the tip. Prothorax

very short, twice as broad as long, rounded and somewhat dilated at the sides anteriorly, appearing

slightly constricted behind, with excessively long, slender, divergent hind angles; the surface thickly,

coarsely punctate. Scutellum thickly punctured. Elytra about three and one-half times the length of

the head and prothorax, and one-half wider than the latter, moderately gibbous at the base, and flattened

on the disc, narrowing from the shoulders downwards, the sides almost straight; sulcate from a little

below the base to the apex, with the interspaces moderately raised, and somewhat thickly, finely

punctate.

Length 153, breadth 52 millim.

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One specimen. Allied to S. amplipennis, but differing from it in having the antenne

shorter, with the outer joints less produced at the apex; the mandibles much longer,

more curved, and toothed within; the thorax shorter; the elytra less elongate and

more narrowed behind (when closed), with the interstices more convex and more

rugulose ; and the maxillary palpi shorter and stouter, the apical joint being slightly

longer than the preceding. ‘The form of the antenne distinguishes it at once from

S. brevicollis. In 8S. acrognathus the mandibles are longer, more acute, and less

abruptly curved inwards than in any of the allied forms.

11. Scaptolenus laticollis. (Tab. XXV. figg. 9, 9a,¢.)

3. Elongate, broad, strongly narrowed behind, shining ; castaneous, the basal half of the head black, the

elytra, except along the margins and suture, gradually becoming darker from about the middle onwards,

the mandibles castaneous, black at the tip, the antenna and palpi ferrugineo-testaceous, the body beneath

luteous, the femora flavous, the tibie rufescent, the tarsi darker; the head, prothorax, and scutellar

region somewhat thickly clothed with moderately long fulvous hairs, the femora and breast with longer

similarly coloured hairs, the rest of the elytra sparsely pubescent, the margins fimbriate. Head coarsely,

thickly punctate, the eyes very large and prominent ; maxillary palpi with the apical two joints equal in

length; mandibles moderately long, abruptly bent inwards at the middle, stout at the base, acute at the

SCAPTOLENUS. 565

tip; antenne short and slender, tapering outwards, joint 3 about twice as long as 2, and 4 twice as long

as 3, the joints from the fourth distinctly serrate, 11 abruptly constricted beyond the middle, and with

the apical portion slender. Prothorax largely developed, about three-fifths broader than long, rounded

and dilated at the sides anteriorly ; the hind angles acute and divergent, comparatively short; the surface

thickly, rather finely punctate. Scutellum densely punctured. FElytra oval, nearly three times as long

as the head and prothorax, and not much wider than the latter at the base, gibbous in front and flattened

on the disc; suleate, with the interstices feebly, narrowly costate, and thickly rather finely punctate.

Length 17, breadth 64 millim.

Hab. Mexico, Ventanas in Durango 2000 feet (Forrer).

One example. Belongs to Chevrolat’s third division of the genus, near S. sulcipennis.

The more oval elytra, the shorter and more serrate antenne, with strongly constricted

apical joint, and the longer hairs on the thorax, separate it from 8. guerini, which also

has longer hind angles to the thorax.

12. Scaptolenus villosus. (Tab. XXV. figg. 10, 10a, 2.)

3. Scaptolenus villosus, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 508, 5147.

Hab. Mexico (Sallé, ex coll. Sturm 4).

Described from two specimens, one of which, the type, is in the Sallé collection.

S. villosus somewhat resembles S. fudvus; but it has the thorax relatively broader and

considerably dilated at the sides anteriorly, the elytra less elongate, the mandibles

shorter, the maxillary palpi infuscate and much shorter and stouter, the eyes less

prominent, and the antenne very feebly serrate. The hairs on the head, thorax,

scutellar region, femora, and breast are very long and fulvous in colour. The apical

joint of the maxillary palpi is about as long as the preceding. The specimens placed

under the name S. véd/osus in the de Bonvouloir collection (now in the possession of

M. René Oberthir) belong to other species.

The type is figured.

13. Scaptolenus moufileti. (Tab. XXV. figg. 11, lla, ¢.)

36. Scaptolenus mouffieti, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 523°.

Hab. Mexico, Vera Cruz (Moufflet, in coll. Sallé').

Unique in the Sallé collection. This species resembles S. vagans in shape, but the

antennal joints are stouter and not dilated at the apex. ‘The thorax is much larger,

and dilated at the sides anteriorly. The elytra are short, greatly narrowed behind, and

dehiscent from about the basal third. ‘The mandibles are short, acute at the tip. The

apical two joints of the maxillary palpi are equal in length. The hairs on the head,

thorax, and breast are very long and fulvo-cinereous in colour.

566 SERRICORNIA.

14. Scaptolenus pueble. (Tab. XXV. figg. 12, 124, ¢.)

3. Scaptolenus pueble, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 521°.

Hab. Mexico, Puebla (Sallé').

The type of this species is in the Sallé collection, and there is a specimen in

M. Oberthiir’s collection possibly belonging to it.

This species somewhat resembles S. Sulous ; but it is narrower, with less gibbous

and more elongate elytra, very feebly serrate antenne, and the long pilosity on the

thorax and breast not so dense. ‘The mandibles are short and stout; the eyes are

moderately large and prominent; the apical two joints of the maxillary palpi are about

equal in length.

15. Scaptolenus candezei. (Tab. XXV. figg. 13, 13 4,2.)

3. Scaptolenus candezi, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 521°.

Hab. Guatemata (Sallé, Boucard*).

There are two examples of S. candezei in the Sallé collection. This species has

very long, erect, fulvous and fuscous hairs on the head and thorax, and the breast is

clothed with long fulvous hairs. The thorax is about three-fifths broader than long,

very much narrower than the elytra, rounded and slightly dilated at the sides anteriorly,

with greatly produced slender hind angles; the surface is rather sparsely punctured.

The elytra are gibbous at the base and rapidly narrowed behind (appearing somewhat

oval in shape, when closed along the suture); they are feebly sulcate and thickly

punctured. The mandibles are moderately long. ‘The maxillary palpi are rather

slender, with the apical joint as long as the preceding. The antenne are slender,

with the joints from the fourth almost parallel, the eleventh being obliquely truncate

at the tip.

16. Scaptolenus nigriceps. (Tab. XXV. figg. 14, 14a, ¢.)

$. Elongate, rather narrow, subparallel, shining ; piceous, the head, the disc and hind angles of the prothorax,

and the tips or the whole of the mandibles, black, the antenne ferruginous or brown, with the basal three

joints black, the body beneath and the femora luteous, the tibie pitchy-red, the tarsi piceous; the head,

prothorax, and scutellar region rather sparsely clothed with moderately long blackish hairs, the rest

of the elytra very sparsely pubescent, the long marginal hairs blackish, the breast densely, and the

rest of the body beneath and the femora sparsely, clothed with long fulvous hairs. Head sparsely,

irregularly, rather coarsely punctate, the eyes moderately large and prominent; mandibles short, abruptly

incurved at the middle, the basal portion stout ; maxillary palpi rather slender, the apical two joints equal

in length ; antenne rather short, joint 3 twice as long as 2, and 4 twice as long as 3, the joints from the

fourth very feebly serrate, 11 obliquely truncate at the tip. Prothorax about three-fifths broader than

long, dilated and rounded at the sides anteriorly, constricted behind, with extremely elongate, slender,

divergent hind angles; the basal median lobe obtuse; the surface rather finely and sparsely punctate.

Scutellum closely punctured. FElytra a little more than three times the length of the head and prothorax,

and considerably wider than the latter, slightly narrowed behind, gibbous in front, and flattened on the

SCAPTOLENUS. 567

disc; feebly suleate, with the interstices somewhat convex, and rather coarsely and moderately thickly

punctate.

Length 153-16, breadth 53-52 millim.

Hab. Costa Rica, Rio Sucio (Rogers).

Two males. This insect approaches S. revestitus; but it has the hairs on the head

and thorax longer and almost black, the thorax relatively narrower, more rounded at

the sides, and more sparsely and less coarsely punctate, the elytra much more feebly

sulcate and more thickly punctured. The more rounded sides of the thorax, the

subparallel elytra, and the rather more distinctly serrate antenne separate it from

S. candezei?. In one specimen the thorax is very deeply sulcate down the middle, but

this is probably accidental.

17. Scaptolenus brevicollis. (Tab. XXV. figg. 15, 15a, ¢ .)

3. Elongate, moderately broad, a little narrowed behind, shining ; head, prothorax, and scutellum black, the

antenne brown, with the three basal joints black, the mandibles castaneous, black at the tip, the elytra

piceous, the under surface black, the apex of each ventral segment fulvous, the legs black, the femora

flavous, except at the tip; the head, prothorax, and scutellar region sparsely clothed with very long erect

brownish and fulvous hairs, the prosternum and breast thickly clothed with long fulvous hairs, the femora

and ventral segments also with long hairs, the rest of the elytra sparsely pubescent, the margins fimbriate.

Head sparsely, coarsely, unequally punctate, transversely depressed between the eyes, the latter com-

paratively small; maxillary palpi rather stout, the apical two joints about equal in length; mandibles

short and stout, abruptly incurved at the middle; antennz moderately long, rather stout, very feebly

serrate, joint 3 twice as long as 2, 4 twice as long as 3, 11 obliquely truncate at the apex. Prothorax

very short, twice as broad as long, rounded and somewhat dilated at the sides anteriorly and slightly

constricted behind, with long, slender, divergent hind angles; the surface thickly, coarsely punctate.

Scutellum thickly punctured. Elytra three and two-fifths longer than the head and prothorax, and much

wider than the latter, gradually narrowing posteriorly, moderately gibbous at the base and flattened on

the disc, dehiscent at the suture behind ; distinctly striate from a little below the base to near the apex,

the striz crenate posteriorly, the interstices feebly convex and somewhat thickly, coarsely punctate.

Length 16, breadth 6 millim.

Hab. Mexico, Xucumanatlan in Guerrero 7000 feet (7. H. Smith).

One specimen. Allied to S. ruficornis, but differing from it in the stouter and less

elongate antenne, the stouter palpi, the more dilated thorax, which is clothed with

much longer and more erect hairs, the distinctly striate elytra, &c. ‘The thorax is

much shorter than in S. candezei and S. nigriceps.

18. Scaptolenus gehini. (Tab. XXV. figg. 16, 16a, ¢.)

3. Scaptolenus gehini, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509°, 523°.

¢. Elongate, rather narrow, subparallel, shining ; head and scutellum black, the mandibles castaneous, black

at the tip, the antenne brown, darker at the base, prothorax piceous or obscure rufo-castaneous, the

elytra piceous or brown, the breast testaceous or obscure testaceous, the ventral segments, and also the

femora, flavous, the tibie and tarsi piceous or black; the head, prothorax, scutellar region, breast, and

femora somewhat thickly clothed with moderately long fuscous hairs, the ventral segments with scattered

hairs, the rest of the elytra sparsely pubescent, the margins fimbriate. Head sparsely, irregularly, rather

coarsely punctate, the eyes moderately large and prominent; maxillary palpi more or less infuscate, the

apical joint slightly longer than the preceding ; mandibles short and stout, abruptly bent inwards at the

568 SERRICORNIA.

middle; antenne moderately elongate, joint 3 twice as long as 2, 4 three times as long as 3, the joints

from the fourth almost parallel. Prothorax very short, twice as broad as long, rounded at the sides

anteriorly, with long, divergent, slender hind angles; the surface thickly punctate, the punctures coarse

on the disc, finer at the sides. Scutellum densely punctured. Elytra rather more than three times the

length of the head and prothorax, and much wider than the latter, subparallel, narrowing a little behind,

moderately gibbous at the base and flattened on the disc, acutely margined at the sides; obsoletely

sulcate, without trace of stri, and finely, somewhat thickly punctate, with numerous conspicuous scat-

tered coarse impressions towards the apex, the base distinctly grooved near the shoulder and also more

sparsely punctured.

Length 134-15, breadth 43-53 millim.

Hab. Nortu America, ? Texas2.— Mexico! ; Guatemaua, Coban in Vera Paz (Conradt),

Sabo in Vera Paz (Champion).

The type of this species is contained in M. René Oberthiir’s collection ; it is labelled

“Am. b., Gehin.” The three specimens from Guatemala, from which the above descrip-

tion is taken, agree well with it. Dr. Horn’s surmise (¢f. Trans. Am. Ent. Soc. ix.

p. 383) that the insect is probably Mexican is no doubt correct. S. gehini approaches

S. brevicollis, but it is narrower and more parallel; the eyes are larger and more

prominent; the hairs on the head and thorax are shorter and entirely fuscous; the

antenne are more slender; and the elytra are more finely punctured and obsoletely

sulcate, without trace of strie. The short thorax, subparallel elytra, &c., distinguish

it from S. candezei. ‘The type is figured.

19. Scaptolenus ruficornis. (Tab. X XV. fig. 17, ¢.)

3. Scaptolenus ruficornis, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 522°.

Hab. Mexico (coll. Oberthir, ex de Bonvouloir').

There are two specimens of this species in M. René Oberthiir’s collection, from that

of de Bonvouloir, one of which is marked “type.”

In this insect the moderately long villosity of the head, thorax, scutellar region, and

breast is fuscous; the maxillary palpi are elongate, with the apical two joints equal

in length; the mandibles are short; the thorax is very short, about twice as broad

as long, and not much narrower than the elytra; and the elytra are elongate and

subparallel, obsoletely sulcate, with indications of faint strie, and coarsely, thickly

punctate *. 8S. ruficornis is very nearly allied to S. gehini, and apparently only differs

from it in the slightly longer penultimate joint of the maxillary palpi, and the more

coarsely punctured elytra, without well-defined coarse impressions towards the apex.

The type is figured.

20. Scaptolenus revestitus.

3. Scaptolenus revestitus, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 508, 513°.

Hab. Muxico (Sallé+), Jalapa (F. D. Godman).

* Described as ‘‘ minute punctulatis.”

SCAPTOLENUS. 569

The type of this species is contained in the Sallé collection, and we also possess an

example of it from Jalapa. Chevrolat’s second specimen (now in the collection of

M. René Oberthiir) is probably referable to S. femoralis. In this insect the hairs on

the thorax are rather short and decumbent, and brownish in colour; the outer joints

of the antenne are very slightly dilated at the apex; the mandibles are short; the

apical two joints of the maxillary palpi are equal in length; the thorax is not very

much narrower than the elytra; and the elytra are narrowed behind, deeply sulcate,

with the interstices convex, and rather sparsely punctured.

21. Scaptolenus subapicalis.

3. Scaptolenus subapicalis, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 519°.

Hab. Mexico (coll. Mniszech +).

The type of this species cannot now be identified with certainty ; but in the Mniszech

collection (now in the possession of M. René Oberthiir) there is a Mexican specimen

agreeing fairly well with the description. There are also two others from Mexico in

M. Oberthiir’s collection, one from that of Chevrolat (incorrectly labelled S. vil/osus),

that probably belong to it. These three specimens have the head black, the thorax

more or less infuscate, the elytra fusco-testaceous (blackish at the apex in one example),

and the under surface and femora luteous. The yellowish-cinereous pilosity of the

thorax is rather short and decumbent, that of the breast being much longer and

denser. The thorax isa little dilated at the sides anteriorly, not twice as broad as long,

with long, slender hind angles. The elytra are elongate, a little wider than the thorax,

distinctly narrowed posteriorly, shallowly sulcate, with the interstices narrowly, vaguely

costate, and somewhat thickly, finely punctate. The mandibles are short; the apical

two joints of the maxillary palpi are equal in length; and the fourth and following

antennal joints are very little widened outwards.

Compared with S. femoralis, these examples are less parallel, and they have the

thorax less transverse, with more slender hind angles and rather longer pubescence.

22. Scaptolenus chevrolati. (Tab. XXV. fig. 18, ¢.)

3. Cebrio chevrolati, Guér. Rev. Zool. 1844, p. 255"; Mag. Zool. 1844, Ins. t. 145°.

3. Scaptolenus chevrolati, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 517, t. 1. figg. 3, 3a, 6 (3)

(nec ?)°.

@. Scaptolenus femoralis, Chevr. loc. cit. pp. 509, 516, t. 1. fig. 4 (?)°.

Hab. Mexico? (Nieto!, in coll. Oberthiir: 3), Orizaba (Sallé?*: 3 2 ).

Guérin’s original type of Cebrio chevrolati is contained in M. René Oberthiir’s

collection. There are also two specimens of it in the Sallé collection, named as male

and female. of the same species, the female being the one figured by Chevrolat? as

S. femoralis. In this species the thorax and elytra are fulvous-brown in colour; the

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1896. 4D

570 SERRICORNIA.

thorax is not much dilated at the sides anteriorly, and clothed with short decumbent

fulvous hairs; the elytra are very elongate and parallel, shallowly sulcate, with the

interstices narrowly costate, and rather coarsely punctured ; the antenne are moderately

long, with the fourth and following joints almost parallel; the mandibles are short ;

the maxillary palpi are slender, with the apical two joints equal in length; and the

eyes are large and prominent. We figure a male from Orizaba.

23. Scaptolenus rubriventris. (Tab. XXV. figg. 19, 2; 20, 2.)

3. Scaptolenus rubriventris, Chevr. Ann. Soc, Ent. Fr. 1874, pp. 509, 520°.

pubescent beneath; legs reddish, the femora paler. Head rather convex in front, the anterior portion

very coarsely and confluently punctured, for the rest sparsely, coarsely punctate ; mandibles broadly

flattened in their basal half, abruptly curved inwards from the middle. Prothorax strongly transverse,

with the sides rounded anteriorly and constricted behind, the base and apex deeply bisinuate, and the

basal median lobe broadly rounded ; the hind angles acute and divergent, moderately produced ; the lateral

margins crenulate ; the disc obsoletely canaliculate and deeply transversely depressed a little before the

middle, and with a very deep oblique fovea on either side about the centre; the surface sparsely, coarsely,

irregularly punctate, the punctuation becoming more crowded towards the sides, base, and apex.

Scutellum transverse, rounded behind, coarsely, rugosely punctate. Elytra nearly three times the length

of the prothorax, and a little wider than it at the base, widening to beyond the middle, dehiscent from

about the basal third ; obsoletely striate, and sparsely, irregularly, moderately coarsely punctate. Dorsal

segments of the abdomen coarsely, thickly punctate, the ventral segments with widely scattered coarse

punctures. Wings about four-fifths the length of the elytra.

Length (to apex of the elytra) 16, breadth 74 millim.

Hab. Costa Rica (Sallé1, Van Patten); Panama, Volcan de Chiriqui (Champion),

Chiriqui (coll. Oberthiir).

Of this species we have a considerable series of males from Costa Rica and Chiriqui ;

and a single female from Costa Rica, received with several males from Van Patten, no

doubt belongs to the same species. SS. rubriventris, the type of which is before me,

is very closely allied to (and perhaps a varietal form of) S. femoralis, but differs

from it in the infuscate femora and slightly darker breast. It varies greatly in size

and colour. The female may be known from the corresponding sex of S. guerini

and S. chevrolati by the broadly rounded basal median lobe of the thorax and the

transverse scutellum. The male is described as having four fovee near the anterior

margin of the thorax, but they are invisible to me in the type. We figure the female

and the type of the male, both from Costa Rica.

24. Scaptolenus guerini. (Tab. XXV. fig. 21, ¢.)

¢. Scaptolenus chevrolati, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 518, t. 1. fig. 4 (?)* (nec

Guérin).

Hab. Mexico (coll. Oberthiir), Orizaba (Sallé 1).

Six specimens of this species, for which a new name is required, have been

SCAPTOLENUS. 571

examined—two males and a female from the Sallé collection (the female being the

one described and figured by Chevrolat!) and three males from M. René Oberthiir’s

collection. The males (one of which is labelled S. chevrolati in Chevrolat’s handwriting)

differ from those of S. chevrolat?, Guér., as follows:—They are broader and more

robust ; the thorax is more transverse; and the elytra are more gibbous at the base,

less elongate, distinctly narrowed behind, and more thickly punctured. The head is

black, the thorax and elytra are castaneous or fulvous-brown, the apical margin of the

latter being infuscate or black, the under surface and femora are luteous, and the tibie

and tarsi are rufescent. ‘The pilosity of the thorax is short and decumbent, and fulvous

in colour; the breast is clothed with much longer fulvous hairs. S. guerini is also

broader and more robust than S. femoralis, and differently coloured above. In general

shape itis very like S. /aticollis, from which it may be easily separated by the form of

the antenne, the insect in this respect agreeing with S. femoralis and its allies. The

female differs from the corresponding sex of S. chevrolati, Guér. (= femoralis, Chevr.),

in having the thorax and elytra and the dorsal segments of the abdomen much

more thickly punctured, and the elytra without well-defined sulci. A male from

M. Oberthiir’s collection is figured.

25. Scaptolenus signaticollis. (Tab. XXV. fig. 22, 2.)

3. Scaptolenus signaticollis, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 518 ‘

Hab. Mexico (coll. Oberthiir, ex Chevrolat! & de Bonvouloir).

There are two males of this species in M. René Oberthiir’s collection—one, the type,

and one (labelled chevrolati, Guér.) from de Bonvouloir’s collection. This last-

mentioned specimen has the thorax almost entirely rufo-fulvous. From S. chevrolati

the present species may be known by the much shorter and less parallel elytra, which

(when closed) are considerably narrowed behind, feebly sulcate, and thickly punctured,

with a few conspicuous coarse impressions towards the apex. The thorax is about

three-fifths broader than long, very little narrower than the elytra, dilated and rounded

at the sides anteriorly, with long divergent hind angles; the basal median lobe is

longitudinally carinate. The antenne are moderately long. ‘The maxillary palpi are

elongate, with the apical two joints equal in length. ‘The mandibles are short. The

hairs on the head, thorax, and scutellar region are moderately long and fulvous in

colour; the breast is densely clothed with long, similarly-coloured hairs. The type is

figured.

26. Scaptolenus teapensis. (lab. XXV. figg. 23, 234, ¢.)

S$. Moderately elongate, narrow, subparallel, slightly attenuate behind, shining ; head black, the prothorax

rufo-castaneous, the elytra brown, indeterminately castaneous at the base and suffused with black at the

apex, the body beneath and the femora luteous, the antenna, tibia, and tarsi reddish-brown, the

mandibles castaneous, black at the tip; the bead, prothorax, and sentellar region clothed with short

4D2

572 SERRICORNIA.

decumbent fulvous hairs, the breast with longer similarly-coloured hairs, the rest of the elytra finely

pubescent, the long marginal hairs black, except at the shoulders. Head coarsely, thickly punctate, the

eyes large and prominent; maxillary palpi slender, the apical two joints equal in length; mandibles

rather short, abruptly bent inwards at the middle ; antenne long and slender, joints 2 and 3 very short,

subequal, 4-10 elongate and subparallel, 4 three times as long as 3, 11 constricted before the apex.

Prothorax nearly twice as broad as long, rounded and slightly dilated at the sides anteriorly, with mode-

rately produced divergent hind angles; the surface closely, somewhat coarsely punctate, the basal median

lobe longitudinally suleate. Scutellum closely punctured. Elytra nearly three times as long as the head

and prothorax, and a little wider than the latter, moderately gibbous at the base, and gradually narrowing

posteriorly ; vaguely sulcate, with the interspaces very little raised, and closely, rather finely punctate,

the punctuation becoming sparser at the base.

Length 14, breadth 15 millim.

Hab. Mexico, Teapa in Tabasco (ff, H. Smith).

One specimen. Allied to S. chevrolati, Guér., but differing from it in the very short

third joint of the antenne (this being nearly twice as long as the second in that species)

and the much shorter elytra, the latter closely and rather finely punctured and vaguely

sulcate, without distinct coste. The puncturing of the elytra is unusually close, except

at the base, and the third joint of the antenne is scarcely longer than the second. ‘The

apices of the elytra are black.

The less dilated thorax, the shorter third antennal joint, and the absence of the

coarse impressions at the apex of the elytra separate this species from S. signaticollis.

27. Scaptolenus femoralis. (Tab. XXV. figg. 24, 24 a, 25, ¢, var.)

3. Cebrio femoralis, Chevr. Col. Mex., Cent. ii. fase. 8, no. 200 (Sept. 1835) (nec Lec.)’*.

3. Scaptolenus femoralis, Chevr. Ann. Soc. Ent. Fr. 1874, pp. 509, 515, t. 1. fig. 5 (mec 2)*.

3S. Cebrio flavipes, Sturm, in litt.

Hab. Mexico (Sallé, ex Sturm), Orizaba (Sallé?; coll. Oberthir, ex Chevrolat'),

Jalapa (Hoge); Guatemaa (Sallé, Mus. Brit.); Costa Rica, Caché (Rogers); Panama,

Bugaba, Volcan de Chiriqui (Champion).

Of this species we possess two male specimens only from Mexico; but in M. René

Oberthiir’s collection there is a fair series of males from that country, including what

appears to be Chevyrolat’s original type, from Orizaba. The female insect described

and figured by Chevrolat under the name S. femoralis is here referred to S. chevrolati.

We have, however, numerous males from Chiriqui, and also others from Costa Rica,

that are no doubt referable to S. femoralis. The males of this species are usually

black or piceous above, with the thorax lighter in colour in some specimens; in the

two examples from Costa Rica the thorax is fulvous. According to Guérin (Rev. Zool.

1844, p. 256), S. femoralis differs from S. chevrolati, in the male sex, in the deep

brownish-black colour of the upperside, the much broader thorax, especially in front,

and the much less elongate, less parallel elytra. These differences apply to the

specimens here referred to these species, but it must be remarked that two males only

SCAPTOLENUS. 573

(including the type) of S. chevrolati are available for examination. Some of the examples

of S. femoralis have a short smooth raised line on the median basal lobe of the thorax.

The elytral coste are sometimes quite obsolete.

We figure one of Chevrolat’s types (var. 0) from Mexico; also a variety from Caché,

Costa Rica.

28. Scaptolenus obscuriceps. (Tab. XXV. fig. 27, 3.)

3. Scaptolenus obscuriceps, Chevr. Ann. Soc. Ent. Fr. 1894, pp. 509, 520°.

Hab. Mexico, Panistlahuaca in Oaxaca (Sallé 1).

Unique in the Sallé collection. The type is somewhat immature, and has the apical

four joints of the antenne broken off; it differs from S. femoralis in its paler colour,

and in having the elytra more coarsely punctured and the fulvous hairs on the thorax

longer. The shorter and less parallel elytra separate it from S. chevrolati.

29. Scaptolenus longicornis. (Lab. XXV. fig. 26, ¢, antenna.)

S$. Elongate, rather narrow, slightly attenuate behind, shining ; pitchy-brown, the head black, the body

beneath and the femora luteous, the antenne ferrugineo-testaceous, with the three basal joints piceous,

the mandibles castaneous, black at the tip, the tibie and tarsi piceous; the head, prothorax, and scutellar

region clothed with rather short, decumbent fulvous hairs, the breast with longer similarly-coloured

hairs, the rest of the elytra finely pubescent, the margins fimbriate. Head sparsely, somewhat coarsely

punctate, the eyes large and prominent; mandibles short, abruptly curved inwards at the middle ;

maxillary palpi with the apical two joints equal in length; antenne long and slender, joint 3 a little

longer than 2, 4-10 elongate and subparallel, 4 three times as long as 3, 11 feebly constricted before the

apex. Prothorax about three-fifths broader than long, rounded but not dilated at the sides anteriorly,

with very long, slender, divergent hind angles; the surface thickly, rugulosely punctate. Scutellum

closely punctured. Elytra elongate, about two and three-fourths longer than the head and prothorax,

and a little wider than the latter, feebly gibbous at the base and flattened on the disc, narrowing

posteriorly ; sparsely, moderately finely, subseriately punctate, and towards the suture narrowly,

obsoletely costate, without trace of stria.

Length 174, breadth 53 millim.

Hab. Guatemata, Ceiro Zunil (Champion).

One broken specimen from the Pacific slope. Very near S. femoralis, but with

considerably longer antenne, longer and more slender hind angles to the thorax, and

(apparently) flatter elytra. The elytra are much more elongate than in S. teapensis,

and quite sparsely punctured.

574 SERRICORNIA.

Fam. RHIPIDOCERIDA*.

This is a family of small extent, represented in Central America by three genera—

Callirrhipis, Ptorthocera, and Sandalus. In the first two the legs are not very stout,

the tarsi are simple, the mandibles are rather short, and the gular appendages (“* piéces

jugulaires”) are strongly developed, at least in our species; in Sandalus the legs are

usually robust, with the tibie dilated at their outer apical angle and the tarsal joints

dilated and bilamellate, the mandibles are long and stout, and the gula is without visible

appendages. The females, so far as known, differ greatly from the males in all the

species. Dr. Horn refers the genus Vesperoctenus, Bates f, containing a single species,

V. fohri, from Mexico and Lower California, to this family ; Bates included it in the

Longicornia, a position also assigned to it by Mr. Gahan.

CALLIRRHIPIS.

Callirhipis, Latreille, Régne Anim. ed. 2, iv. p. 459 (1829); Lacordaire, Gen. Col. iv. p. 249.

Callirrhipis, Gemminger and Harold, Cat. Col. vi. p. 1609; C. O. Waterhouse, Trans. Ent. Soe.

Lond. 1877, p. 379.

Celadonia, Castelnau, Hist. Nat. Ins. Col. i. p. 256 (1840).

Simianus, Blanchard, in Dumont d’Urville’s Voyage au Péle Sud, Ins. p. 82 (1853).

Of the fifty-eight known species of this genus, fifteen only are American, these being

distributed between Mexico and Monte Video and Chili. From within our limits eleven

are now recorded, of which eight are described as new. ‘The females appear to be very

rare in collections {; they differ from the males in having the body usually almost or

quite glabrous and the antenne pectinate (instead of flabellate), as well as in their

larger size and less parallel shape. We have received specimens of both sexes of seven

of the Central-American species, the females of three of them (C. laportez, C. vestita,

and C. wnicostata) having been found in some numbers. In all of them the long,

movable, horny, gular appendages (‘‘piéces jugulaires”) are very conspicuous.

C. laportei has the eyes small and prominent; it probably belongs to Celadonia, Cast.

(=Simianus, Blanch.), but is connected with the typical Callirrhipis by intermediate

forms.

* By G. C. Cuampion.

f+ Ent. Monthly Mag. xxvii. p. 159 (1891).

t+ My. C. O. Waterhouse, in 1877, in his remarks on this genus, stated that he had not seen the female of

any American species, and there are none in the British Museum to this day.

CALLIRRHIPIS. 575

a. Legs more or less elongate; body black, fuscous, or brown; upper surface

pubescent in the 4, almost or quite glabrous in the @? *.

a’, Basal joint of the hind tarsi not longer than the following two joints united.

a, The elytral cost not connected by numerous transverse raised lines ;

antenne strongly flabellate in the ¢.

a", Second elytral costa curved posteriorly and distinctly reaching the

suture behind; eyes large and prominent in the ¢.

a‘, The second costa strongly and very acutely raised from the middle

onwards, the others indistinct: body robust in both sexes; front

grooved and excavate. . 2. 2. 1. 6 1 ee ee ew ee we Carinifer.

b*. The second costa moderately raised.

a’. Body broad and robust in both sexes; antennal rami (3) exces-

sively elongate . . . oe wo ~ ee ew ee valida.

6’. Body narrow in the 4, robust in the 9; antennal rami (3)

shorter.

a’. Prothorax not or moderately dilated behind.

a’, Elytral punctuation almost uniform in the ¢; frontal excava-

tion rather shallow . . ...... oo obsoleta.

6", Elytral punctuation becoming very coarse towards the base

in the ¢; frontal excavation deep; antennz stoutly and

moderately pectinate, and with the eleventh _fomt short, in

the @ ... . . » + . « Unicostata.

68, Prothorax strongly dilated behind ; frontal excavation and pro-

thoracic fovez deep; antennz strongly pectinate, and with the

eleventh joint elongate, im the @ ..... . . dilaticollis.

é!, Second elytral costa not distinctly extending in a curved line to the

suture behind, but sometimes connected with it, and with the third

also, by a faint oblique raised line.

c’, Body broad and robust; elytra with very faint coste, the punctuation

rather fine, with the interspaces thickly, minutely punctulate ; frontal

excavation and prothoracic foveee deep; antennal rami (¢) exces-

sively elongate ; eyes (3) large and prominent: size very large. . childreni.

d‘, Body narrow in the ¢, robust in the ?; antennal rami moderately

elongate: size smaller.

c’. Upper surface thickly pubescent in the ¢; eyes rather small in

ad’, Upper surface sparsely pubescent in the - eyes large : body

blackish-brown inthe 9... . 2. 2. es ew ee ew we we meRICANGA.

b", The elytral costee connected by numerous transverse raised lines; eyes

small and the antennal ramishortin the @ . . ... .. . . . venosa.

* The females of C. obsoleta, C. childreni, C. venosa, and C. tenuipes are unknown.

576 SERRICORNIA.

b’. Basal joint of the hind tarsi elongate, nearly as long as the following three

joints united ; antenne strongly flabellate in the ¢; prothorax narrow in

front, strongly dilated behind; second elytral costa curving round to the

suture behind; legs slender. . . rr

6. Legs comparatively short; the basal joint of the hind tarsi about as long as the

following two joints united, the next three joints subtransverse ; eyes small and

tenuipes.

prominent in both sexes; antenne strongly flabellate in the ¢, pectinate in

the ¢; upper surface finely pubescent in the g, indistinctly pubescent or

glabrous in the 9: body testaceous-red (or ochraceous) and black, varying

according to the predominance of the light or dark colour. . . . . . . Jlaportet.

1. Callirrhipis carinifer. (Tab. XXIV. figg. 6, 2; 6a, antenna, 2; 7, 3.)

3. Very elongate, broad, robust, moderately shining ; fuscous or brown, the head and prothorax almost black,

the abdomen reddish-brown, the antenne, the two basal joints excepted, ferruginous, the legs brown,

with the tarsi obscure ferruginous ; rather sparsely clothed with fine fulvo-cinereous pubescence. Head

coarsely, rugosely punctate, deeply longitudinally grooved in front, the vertex also canaliculate, the eyes

large and prominent; antenne with the rami on the third and following joints excessively elongate.

Prothorax broader than long, rapidly narrowing from about the basal third forwards, slightly dilated

behind and constricted at the middle, compressed in front at the sides beneath; densely, coarsely punc-

tate, canaliculate from the base almost to the apex, depressed in the centre behind, and very deeply foveate

on either side of the disc about the middle. Elytra very elongate, widest beyond the middle ; each with a

strongly raised, curved, acute ridge on the middle of the disc, extending from a little before the middle to

the suture near the apex, and continued forwards as a faint raised line to the base, and also with indica-

tions of a faint raised line midway between this and the suture and another between it and the margin ;

the rest of the surface thickly, confusedly, rather finely punctate, with the interspaces rugulose and very

sparsely, minutely punctured. Beneath closely, finely punctate. Legs moderately elongate; the basal

joint of the hind tarsi as long as the following two joints united.

Q@. Eyes smaller and less prominent ; antenne strongly pectinate from the third joint; upper surface almost

glabrous ; the elytra fusco-castaneous, with the scutellar region darker, more sparsely punctured, and a

little more dilated beyond the middle.

Var.? 9. Antenne less strongly pectinate; the prothorax much more sparsely and finely punctured, the sides

more dilated before the base (the prothorax appearing narrowed behind), the basal and apical margins

rufescent ; the elytra brownish-testaceous.

Length 15-204, breadth 5-7 millim.

Hab. Mexico, Cordova (Sallé).

Three specimens, including the small example doubtfully referred to the same

species. C. carinifer may be separated from its allies by the very acutely raised curved

ridge on the middle of the disc of each elytron, the ridge becoming evanescent before

the middle and extending round to the suture behind. The front is deeply grooved

down the middle, appearing bilobed when the insect is viewed from above. The

variety (?) has the elytra formed exactly as in the typical specimens, but in the form of

the thorax it resembles C. dilaticollis.

2. Callirrhipis valida.

3. Very elongate, broad, robust, somewhat shining ; brownish-black, paler beneath, the abdomen ferruginous

towards the tip; the antenne ferruginous, with the basal joint black, the legs brown, with the tarsi

CALLIRRHIPIS. 577

obscure ferruginous ; rather sparsely clothed with fulvo-cinereous pubescence. Head coarsely, unequally

punctate, transversely excavate in front and deeply canaliculate on the vertex, the eyes very large and

prominent ; antennse with the rami on the third and following joints excessively elongate. Prothorax

broader than long, rapidly and obliquely narrowing from the basal third forwards, appearing dilated

behind, compressed anteriorly at the sides below ; closely, coarsely punctate, depressed in the centre before

the base and deeply foveate on either side of the disc about the middle, and with indications of a smooth

median line. Elytra elongate, at the base slightly wider than the basal portion of the prothorax, widest

beyond the middle; each with three distinct coste—the second longer than the others and extending

round to the suture posteriorly, and with traces of a fourth behind midway between the third and the margin ;

the rest of the surface closely, coarsely, subseriately punctate, the interspaces transversely rugulose and

with a few widely scattered excessively minute punctures. Beneath densely, finely punctate. Legs

moderately elongate ; the basal joint of the hind tarsi as long as the following two joints united.

. Eyes smaller and less prominent; antenne with the joints from the third (5-11 broken off) each with a

short, stout ramus; head and prothorax very finely and sparsely pubescent, the latter canaliculate in

front ; the elytra, except along the outer margin, almost glabrous (short minute hairs are visible under a

strong lens), and dilated beyond the middle; the under surface more sparsely punctured.

Length 18-19, breadth 64-63 millim.

Hab. Nicaragua, Chontales (Belt).

One pair. Allied to C. childreni, but smaller, less elongate, more shining, and more

sparsely pubescent in the male sex; the elytra with much more distinct coste, the

second curving round to the suture posteriorly, and the interspaces between the

irregular rows of punctures very much smoother, the thorax more parallel behind.

3. Callirrhipis obsoleta. (Tab. XXIV. fig. 10, genitalia, ¢ .)

6. Very elongate, slightly shining; fuscous, paler beneath, the head and prothorax sometimes black, the

antenne ferruginous, with the basal joint infuscate, the legs brown, with the tarsi obscure ferruginous ;

somewhat thickly clothed with fine yellowish-cinereous pubescence. Head closely punctured, transversely

depressed in front and canaliculate on the vertex, the eyes large and prominent; antennew with the rami

on the third and following joints very elongate. Prothorax broader than long, rapidly narrowing from a

little before the base to the apex, the sides slightly rounded behind; the surface closely, coarsely punctate,

more or less distinctly canaliculate, and usually obsoletely foveate on either side of the disc about the middle.

Elytra very elongate, widest beyond the middle ; each with four raised lines or costa, the second consider-

ably raised from the middle onwards and extending uninterruptedly round to the suture near the apex,

the others not very distinct, the third and fourth abbreviated and sometimes obsolete; the rest of the

surface rather coarsely subseriate-punctate. Beneath thickly, finely punctate. Legs moderately elongate,

the basal joint of the hind tarsi as long as the following two joints united.

Length 124-16, breadth 4-5 millim.

Hab. Mexico, Toxpam, Cordova (Sadlé), Jalapa (Hége).

Five males. Allied to C. carinifer, but much smaller and less robust, with the frontal

excavation transverse and rather shallow, the second elytral costa much less raised and

the others more distinct, the thoracic fovee shallow or obsolete, the antennal rami

shorter, &c. From C. mericana(¢) it may be separated by the form of the second

elytral costa, which in the present species curves round to the suture behind, and the

shallow thoracic fovee. From C. dilaticollis it differs in the less deeply excavate front,

the less dilated thorax, and the shallow thoracic fovee.

In one of the Toxpam examples the eyes are smaller and the antennal rami less

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, October 1896. 45

578 SERRICORNIA.

elongate than in the others ; this insect is labelled C. vestita, Lap., in the Sallé collec-

tion, but it does not agree with the description of that species.

4, Callirrhipis unicostata. (Tab. XXIV. figg.11, ¢; 12, 2; 12a, antenna, 9 .)

? Callirhipis (Zenoa) unicostata (Guér.), Lacord. Gen. Col. iv. p. 251 nota (sine descr.) (9 )*.

3. Elongate, rather narrow, slightly shining ; fuscous or reddish-brown, the antenne pale ferruginous, with

the basal joint darker, the legs ferruginous or brown; rather sparsely clothed with fine fulvous pubes-

cence. Head thickly punctured, grooved and deeply excavate in front and also deeply canaliculate on the

vertex, the eyes very large and prominent; antenne with the rami on the third and following joints very

elongate. Prothorax broader than long, rapidly and obliquely narrowing from the basal third forwards, a

little dilated and rounded at the sides behind; the surface closely punctured, deeply canaliculate, and

more or less distinctly foveate on either side of the disc about the middle. Elytra moderately elongate,

each with four coste—the first becoming more distinct towards the base and obsolete behind, the second

sharply raised beyond the middle and extending round to the suture behind, the third and fourth indi-

stinct or sometimes nearly obsolete, the second and third confluent about the middle in one specimen ;

the rest of the surface coarsely, subseriately punctate, the punctures becoming very coarse and deep

towards the base; the disc from the middle to the apex here and there transversely wrinkled. Beneath

thickly, finely punctate. Legs moderately long; the basal joint of the hind tarsi as long as the following

two joints united.

@. Larger and more robust, shining, glabrous; fusco-castaneous or castaneous, the head and prothorax

sometimes piceous ; above and beneath much more sparsely punctured, the punctuation of the elytra not

becoming coarser towards the base; the eyes smaller and less prominent; the antenne with the third

joint broadly subtriangular, the following joints shortly and stoutly pectinate, the eleventh short, not longer

than the tenth; the elytra dilated beyond the middle, the second costa less raised; the legs more

elongate, the prothoracic foves deep.

Length 104-16, breadth 14-53 millim.

Hab. Costa Rica, Rio Sucio, Volcan de Irazu (Rogers: 2 ); Panama, Bugaba, Volcan

de Chiriqui (Champion: 3 ).—CoLomBia?.

Five males from the State of Panama and five females from Costa Rica. This

insect, which possibly belongs to the species mentioned by Lacordaire! under the

name of C. unicostata, very closely resembles C. dilaticollis in both. sexes. The males

may be distinguished from the corresponding sex of that species by the less dilated

thorax, the relatively shorter and more coarsely punctured elytra, with the punctures

becoming still coarser towards the base, and the less elongate legs; the females by the

shorter and stouter pectinations of the antennee (differing in this respect from all the

other Central-American species), and, more especially, by the much less elongate

apical joint. The thoracic fovee are shallow or indistinct in some of the males, in

which sex the elytra are very coarsely punctured towards the base.

An allied form is found in the Antilles.

5. Callirrhipis dilaticollis. (Tab. XXIV. figg. 13, ¢ ; 14, 9; 144, antenna, @ .)

g. Very elongate, rather depressed, slightly shining; fuscous, the head and prothorax sometimes darker, the

legs brown or reddish-brown, with the tarsi obscure ferruginous, the antenne brownish-ferruginous, with

the basal joint darker; rather sparsely clothed with fine, fulvo-cinereous pubescence. Head densely

CALLIRRHIPIS. 579

punctured, grooved and deeply excavate in front and also deeply canaliculate on the vertex, the eyes

very large and prominent; antennee with the rami on the third and following joints very elongate.

Prothorax transverse, strongly dilated behind, constricted at the middle, and rapidly narrowing thence to

the apex, widest a little before the base; the surface densely, somewhat coarsely punctate, canaliculate,

depressed in the centre before the base, and deeply foveate on either side of the disc about the middle.

Elytra very elongate, at the base not wider than the base of the prothorax, widest beyond the middle ;

each with three or four faint costa, the second acutely raised from the middle and extending round to the

suture behind, the outer ones indistinct and sometimes almost obsolete; the rest of the surface moderately

coarsely subseriate-punctate, with the interspaces rugulose ; the disc from the middle to the apex here

and there transversely wrinkled. Beneath closely, finely punctate. Legs moderately elongate; the basal

joint of the hind tarsi fully as long as the following two joints united.

9. Larger and more robust, glabrous above and nearly so beneath; above and beneath much more sparsely

punctured; the antenne pectinate from the third joint, the eleventh elongate, longer than the tenth ;

the eyes smaller and less prominent; the elytra dilated beyond the middle.

Length 123-164, breadth 33-53 millim.

Hab. Guaremata, Sinanja and Senahu in Vera Paz, Capetillo (Champion).

Three males from Vera Paz and a female from Capetillo. ‘he chief characters of

(. dilaticollis are the strongly dilated basal portion of the thorax, which is widest a

little before the base, the grooved and deeply excavate front, the moderately elongate

antennal rami in the males (much shorter than in C. carinifer &c.), and the sharply

raised second elytral costa, which extends round to the suture behind. ‘This ridge is

less raised than in C. carinifer, and also less curved, the other coste being, on the

contrary, more distinct; the elytral punctuation, too, is much coarser in both sexes.

The males of the present species vary a good deal in width.

6. Callirrhipis childreni.

3. Callirhipis childreni, Gray, in Griffith’s Anim. Kingd. i. p. 365, t. 39. fig. 1, t. 61. figg. La-lh

(1832) 1; Laporte, Ann. Soc. Ent. Fr. 1834, p. 254”.

g. Very elongate, broad, robust, slightly shining, brownish-black, above and beneath somewhat thickly

clothed with fine, decumbent, yellowish-cinereous pubescence ; the antenne, the two basal joints excepted,

brownish-ferruginous. Head densely punctured, grooved and deeply excavate in front, the eyes very

large and prominent; antenne with the rami on the third and following joints excessively elongate.

Prothorax at the base very much broader than long, slightly dilated behind, and rapidly narrowing thence

to the apex, strongly constricted at the sides beneath in front, with the lower anterior angles prominent

and visible from above; the surface densely, moderately finely punctate, deeply foveate on either side of

the disc about the middle, and also depressed in the centre before the base. Elytra very elongate, broader

than the prothorax ; each with four extremely faint coste, the outer one extending round to the suture

and connected with the others behind ; the rest of the surface subseriate-punctate, with the interspaces

rugulose and thickly, minutely punctulate. Beneath thickly punctured. Legs elongate, moderately

stout, the basal joint of the hind tarsi as long as the following two joints united ; the femora with a dense

fringe of short hairs beneath.

Length 23, breadth 73 millim.

Hab. Nicaracua, Chontales (Belt); Panama, Volcan de Chiriqui (Champion).—

Braziu } ?.

Two males, agreeing with the type in the British Museum. The insect is not

described by Gray or Laporte. It is the largest of the species inhabiting our region,

4K 2

580 SERRICORNIA.

and easily separable from the allied forms by the very faint elytral coste, with the

interspaces between the subseriate punctures thickly, minutely punctulate. The

description is taken from the Central-American specimens. The type has much paler

elytra.

7. Callirrhipis vestita. (Tab. XXIV. figg. 15, ¢ ; 16, 9; 16a, antenna, 9.)

3. Callirhipis vestita, Laporte, Ann. Soc. Ent. Fr. 1834, p. 252°.

$. Very elongate, narrow, subcylindrical, dull; variable in colour—pitchy-black, fuscous, or brown, the head

and prothorax sometimes rufescent or rufescent with a black median vitta, ferruginous with the elytra

brownish-testaceous in pale specimens ; the antenne and legs ferruginous or brown ; thickly clothed with

fine, silky, decumbent yellowish or yellowish-cinereous pubescence, which is transversely or obliquely

combed inwards on the inner half of each elytron. Head densely, rugulosely punctured, feebly excavate

in front, the vertex canaliculate, the eyes moderately prominent, rather small; antenne with the rami

on the third and following joints very elongate. Prothorax transverse, a little dilated behind, rapidly

narrowing forwards, the sides more or less sinuous; the surface densely, rugulosely punctate, shallowly

canaliculate, the channel sometimes widening at the base, and usually with a deep fovea on either side of

the disc about the middle, these foveee sometimes shallow or indistinct. Elytra very elongate, subparallel

to beyond the middle; each with four fine costz, the exterior one sometimes indistinct or visible towards

the apex only, and connected behind with the third, or the second and third, the second sometimes

extending to the suture behind; the intervals between the coste closely, coarsely, confusedly punctate,

with the interspaces rugulose. Beneath thickly punctured. Legs rather elongate, the intermediate tibia

slightly curved; the femora with a dense fringe of hairs beneath.

Length 93-144, breadth 2-43 millim.

Q. Larger, broader, and less parallel ; black, the antenne, the two basal joints excepted, and the basal margin

of the prothorax sometimes brownish ; glabrous above and very sparsely pubescent beneath ; the antenne

strongly pectinate from the third joint ; the elytra flattened on the disc, widest beyond the middle, slightly

shining, and more coarsely and more rugosely punctured; the under surface much more sparsely punc-

tured; the femora with a few hairs only beneath.

Length 14-23, breadth 43-52 millim.

Hab. Mexico }, Orizaba, Juquila (Sallé), Omilteme and Amula in Guerrero 6000 to

8000 feet (H. H. Smith), Misantla and Jalapa (Hoge); Nicaracua. Chontales (Belt).

This is the only Mexican Callirrhipis that can be referred to C. vestita, Laporte,

agreeing as it does in the general shape and pubescence of the males, and notwith-

standing certain discrepancies between our specimens and the description as regards the

form and sculpture of the thorax, &c., there can be little doubt that the identification

is correct.

Fourteen males and five females are before me, including a male and two females.

from Orizaba, indicated by Sallé as belonging to the same species. ‘The three specimens

from Guerrero are females, and the one from Chontales is a male; one of the former,

from Amula, has the third and following antennal joints much stouter than usual, and

it may prove to belong to another species. The two fovee on the thorax are not

always distinct. The comparatively dense pubescence and the long and narrow shape

of the males chiefly distinguish this species from the allied forms. A male from

Juquila and a female from Omilteme are figured.

CALLIRRHIPIS. 581

8. Callirrhipis mexicana. (Tab. XXIV. figg. 17,3; 18, 2, antenna.)

3d. Very elongate, slightly shining; fuscous, paler beneath, the antennew ferruginous, with the basal

joint darker, the legs brown, with the tarsi obscure ferruginous; rather sparsely clothed with fulvo-

cinereous pubescence. Head thickly punctured, transversely depressed in front and canaliculate on the

vertex, the eyes large and prominent; antenne with the rami on the third and following joints very

_elongate. Prothorax broader than long, narrowing from the base, the sides a little constricted at the

middle and slightly rounded behind; the surface densely, coarsely punctate, more or less distinctly

canaliculate, and very deeply foveate on either side of the disc about the middle. Elytra very elongate,

distinctly wider than the prothorax at the base, widest beyond the middle; each with four costea—the

first faint, the second becoming sharply defined beyond the middle, the third and fourth distinct, the

third abbreviated or coalescent with the fourth behind, the second and fourth almost coalescent before

the apex; the rest of the surface rather coarsely subseriate-punctate, with the interspaces rugulose. .

Beneath thickly, finely punctate. Legs moderately elongate; the basal joint of the hind tarsi as long as

the following two joints united.

@. More robust, shining, glabrous and more sparsely punctured above; blackish-brown, the head and pro-

thorax sometimes black, paler beneath; the eyes smaller and less prominent; the antenne strongly

pectinate from the third joint ; the elytra more dilated beyond the middle, and with the third and fourth

coste sharply raised behind. .

Length 123-18, breadth 4-63 millim.

Hab. Mexico, Toxpam, Cordova (Sal/é).

Two males and three females. In this species (as in C. vestita) the second elytral

costa is less curved behind than in many of the allied forms, and it becomes almost

obliterated before the suture is reached; the third and fourth coste, too, are more

prominent than usual, especially in the females, in which sex they are as much raised

as the second. ‘The females vary greatly in size. ‘The males are more sparsely

pubescent than the corresponding sex of C. vestita. C. mexicana (6) differs from the

Brazilian C. inconspicua, Waterh. (3) (t=gory?, Lap.), in having less elongate and

more feebly costate elytra, smaller and less prominent eyes, and shorter legs.

C. simplex, Waterh., from Brazil, the male only of which is known, has a longer thorax,

this being less dilated behind and without distinct fovee.

9. Callirrhipis venosa. (Tab. XXIV. figg. 19, ¢; 19a, antenna.)

3. Very elongate, rather narrow, slightly shining; pitchy-black, the head, femora, claws, and under surface

in part, obscurely rufescent, the antenne blackish-brown ; above somewhat thickly clothed with fine

fulvo-cinereous pubescence, beneath thickly cinereo-pubescent. Head densely, rugulosely punctured,

transversely depressed in front, the vertex deeply canaliculate, the eyes not prominent ; antennz with the

rami on the third and following joints stout and comparatively short. Prothorax broader than long, a

little dilated behind, and rapidly narrowing forwards, slightly constricted at the middle, the sides appearing

sinuate ; the surface densely, rugulosely punctate, finely canaliculate, and with a deep oblique fovea on

either side of the disc about the middle. Elytra very elongate, subparallel; each with four rather strong

cost, connected with each other and with the suture by transverse or oblique raised lines, the interspaces

thickly, moderately coarsely punctate. Beneath densely punctured. Legs moderately elongate, rather

stout; the first joint of the hind tarsi short, shorter than the following two joints united.

Length 124, breadth 3? millim.

Hab. Mexico, Yolos in Oaxaca (Sal/é).

One example. Differs from all the allied forms in the reticulate arrangement of

582 SERRICORNIA.

the elytral coste, and in the comparatively short and stout rami of the antenne

in the male, the rami being only a little longer than in the females of C. valida,

C. laportei, &c.

10. Callirrhipis tenuipes. (Tab. XXIV. fig. 26, ¢ .)

g. Very elongate, narrow, depressed, slightly shining ; pitchy-black, the basal margin of the prothorax, the

scutellum, antenne, legs, and under surface fusco-ferruginous ; somewhat thickly clothed with fine,

appressed, silky, yellowish-cinereous pubescence. Head thickly, finely punctate, grooved and excavate in

front and canaliculate on the vertex, the eyes large and very prominent ; antenne with the rami on the

third and following joints very elongate. Prothorax transverse, strongly dilated behind, the anterior

portion narrow ; the surface thickly, finely punctate, canaliculate in front, depressed in the centre behind,

and deeply foveate on either side of the disc about the middle. Elytra very elongate, subparallel to

beyond the middle, much wider than the prothorax; each with a single sharp costa on the middle of the

disc, obsolete in front and curving round to the suture near the apex, and also with indications of two

faint raised lines ; the rest of the surface rugulose and with scattered fine punctures, between which other

excessively minute punctures are visible; the disc here and there transversely wrinkled. Beneath

densely, finely punctate. Legs long and slender ; the basal joint of the hind tarsi elongate, nearly as long

as the following three joints united ; the hind tibiee sinuous.

Length 123, breadth 33 millim.

Hab. Mexico (Sallé).

A single specimen in the Sallé collection, without more definite locality. C. tenuipes

may be known from all our other species by the long and slender legs, the basal joint

of the tarsi being unusually elongate; the thorax, too, is very narrow in front and

strongly dilated behind.

11. Callirrhipis laportel. (Tab. XXIV. figg. 20-23, g; 24, 25, 9; 25a,

antenna, 9° .)

3. Callirhipis laportet, Hope, Trans. Ent. Soc. Lond. iv. p. 181, t. 18. fig. 1 (1846)*; C. O.

Waterh. Trans. Ent. Soc. Lond. 1877, p. 393’.

Hab. Mexico, Panistlahuaca in Oaxaca (Sallé), Tapachula in Chiapas (Hége) ;

GuatTemMaLaA, Coban! (Mus. Oxon.), Zapote (Champion); Nicaragua (Mus. Brit. ),

Chontales (Belt); Costa Rica (Van Patten), Volcan de Irazu (Rogers); Panama,

Bugaba (Champion).

Originally described from a single male example from Coban, a locality supposed by

Hope to be in Colombia, instead of in Guatemala.

We have received eighteen males and eight females (varying from 9-15 millim. in

length), one of the former (from Zapote) merely differing from Hope’s figure in having

the thorax almost immaculate, and the base of the antenne and the femora darker.

The insect is extremely variable in colour in both sexes, and the basal joint of the

antenne and the femora to near the tip are sometimes ochraceous or rufo-testaceous.

The following are the chief colour-varieties :—

a Head, prothorax, and elytra testaceous-red or ochraceous, a spot on the middle of the vertex and a median

vitta on the prothorax sometimes black. (So 2.) (Fig. 25, 9 .)\—Guatemala, Nicaragua, Panama.

CALLIRRHIPIS. 583

(@. Reddish-ochraceous, the prothorax sometimes (as in the type) with a narrow median vitta and a line at the

sides black, the elytra with a common oblong mark behind the scutellum, an oblong patch at the sides

below the shoulder, and about the apical two-fifths, black. (¢.) (Fig. 20, ¢.)—Guatemala.

y. Testaceous-red, the elytra sometimes yellowish, a patch on the vertex, a median vitta on the prothorax, a

common oblong or triangular patch at the base of the elytra, and the apex of the latter to a greater or

less extent (sometimes to near the middle), the elytral markings often connected along the suture, black.

(3@.) (Figg. 21, 22, ¢; 24, 9.)—Mexico, Nicaragua, Costa Rica.

3. Head and prothorax testaceous-red or ochraceous, a spot on the vertex and a median vitta on the pro-

thorax sometimes black, the elytra entirely black. (¢.) (Fig. 23, ¢.)— Guatemala, Costa Rica.

The head and thorax are densely, rather finely, rugulosely punctured; the vertex is

canaliculate down the middle; the eyes are small and prominent in both sexes; the

thorax is strongly transverse, rapidly narrowed from a little before the base, appearing

slightly dilated posteriorly, transversely depressed on either side behind the middle,

the depression ending inwards in a deep fovea, and more or less distinctly canaliculate

down the centre. Each elytron has four cost, the external one being sometimes

faint or distinct towards the apex only, and the second longer and more prominent

than the others, extending round to the suture behind in some specimens; the inter-

spaces are closely and coarsely punctured, the punctures being much coarser and

deeper in the female than in the male. The legs are rather short and stout ; the tibie

are somewhat dilated and sinuous, the intermediate pair a little bowed; the basal joint

of the hind tarsi is short. The males are finely pubescent above; they have the

antennal rami very elongate. The females are larger and more robust, and when fresh

slightly pubescent above, the pubescence, however, being easily abraded (six out of the

eight examples examined are glabrous); they have the antenne strongly pectinate

from the third joint.

A single discoloured, mutilated, male example from Escuintla, Guatemala (Conradt),

perhaps belongs here; it is obscure rufo-piceous in colour, and apparently has

a broad black vitta on either side of the disc of the thorax, the elytral interspaces

are rather sparsely punctured, and the thorax is faintly carinate down the centre of

the median channel. C. laportei approaches the genus Simianus (Blanch.), as

defined by Fairmaire * ; it is connected with the typical Callirrhipis by intermediate

forms.

We figure six examples: a female of the var. «, from Bugaba; a male of each

of the vars. B and 8, from Zapote; two extreme forms of the var. y, both males,

one from Irazu and the other from Panistlahuaca; and a female of the var. y, from

Chontales.

* Notes Leyd. Mus. ix. p. 154 (1887).

584 SERRICORNIA.

PTORTHOCERA.

Antenne (¢) elongate, with the basal joint stout and rather short, 2 very small, transverse, joints 3-10 each

with a moderately long, oblique ramus arising from the base, the rami gradually increasing in length, 11

about as long as the ramus on the preceding joint; eyes large, moderately prominent ; gular appendages

well developed; prothorax transverse, trapezoidal, the apex deeply sinuate on either side opposite the

eyes, the anterior angles produced in front, the hind angles also prominent ; elytra with ten rows of

punctures, separated by convex, rather broad interspaces ; legs moderately elongate, rather slender ; tarsi

simple, with a short onychium, the basal joint about as long as the following three joints united, the

latter gradually decreasing in length ; body glabrous in the g; the other characters as in Callirrhipis.

The single species from which the above characters are taken differs from Callir-

rhipis in having the ramus on the third and following antennal joints arising from the

base (instead of from the apex) in the male, the basal joint also being shorter; the

thorax is less compressed at the sides anteriorly, with prominent, less declivous anterior

angles; the elytra have the interspaces between the rows of punctures rather broadly .

raised ; and the body is glabrous in the male. The antennal rami are of about the

same length as those of the same sex of Callirrhipis venosa. From Zenoa, Say, a genus

containing a single species from North America, in which the antenne are described as

subpectinate in the male and serrate in the female, it may be separated by the form

of the antenne, the sculpture of the elytra, the short onychium, &c. Males only have

been found.

1. Ptorthocera calva. (Tab. XXIV. figg. 27, ¢; 27a, antenna; 27 0, geni-

talia.)

3. Elongate, narrow, somewhat cylindrical, shining, black or castaneous, the antenne# brownish, with the

basal joint darker, the legs nigro-piceous or rufo-castaneous and slightly pubescent. Head longitudinally

grooved and excavate in the middle in front, canaliculate on the vertex, sparsely, somewhat finely punctate.

Prothorax sparsely, rather finely punctate, canaliculate, and depressed in the middle and on either side at

the base ; in one specimen strongly, transversely plicate on either side before the base, and with the margins

deeply excised. Scutellum almost smooth. Elytra elongate, considerably wider than the prothorax, sub-

parallel to the middle, and conjointly rounded at the apex ; coarsely seriate-punctate, the interspaces smooth

and convex throughout, becoming partly confluent towards the apex. Beneath sparsely punctured.

Length 93-103, breadth 3-3% millim.

Hab. Guatemaua, Cerro Zunil (Champion) ; Nicaracua, Chontales (Belt).

One male from each locality. The Guatemalan specimen differs from the other in

having the thorax strongly transversely plicate on either side before the base, and the

antennal rami less elongate. There can be little doubt, however, that the two insects

belong to the same species. The Nicaraguan specimen is figured.

SANDALUS.

Sandalus, Knoch, Neue Beytr. p. 131 (1801) ; Lacordaire, Gen. Col. iv. p. 253; Horn, Trans. Am.

Ent. Soc. ix. p. 86.

A genus containing fifteen described species—four from the United States of North

SANDALUS. 585

America, three from South America, one from Japan, and seven from 8S. Africa. Two

are now added from Mexico. As in Callirrhipis, &c., the females are very dissimilar

to the males, and have in several cases been described under different names.

1. Sandalus nietoi. (Tab. XXIV. figg. 28,9; 28a, antenna, 9; 29, 3.)

Sandalus nietoi, Sallé, in litt.

3. Moderately elongate, very broad and robust, opaque; head black, ferrugineo-testaceous in front and

behind ; the prothorax ferrugineo-testaceous, usually with a black mark on either side of the disc at the

base, the two marks sometimes connected along the basal margin ; the scutellum black ; the elytra black,

with the base, the suture for some distance below the scutellum, and the sides narrowly to about the

middle, ferrugineo-testaceous ; the under surface varying in colour from almost entirely ferrugineo-

testaceous to black ; the antennz black, the rami sometimes ferruginous; the apices of the femora, the

tibie, and tarsi black, the rest of the femora ferrugineo-testaceous ; above and beneath thickly clothed

with velvety pubescence, which is fuscous on the dark portions of the elytra and fulvous or golden else-

where. Head very densely, minutely punctate, grooved in front, and longitudinally carinate in the centre

between the eyes, the sides of the front strongly raised above the points of insertion of the antenne, the

eyes moderately prominent ; antennee with joints 2-11 very short, 3-11 each with a very long flattened

ramus, together forming an elongate, compact, lamellate club. Prothorax convex, transverse, rapidly,

arcuately narrowing from a little before the base, the latter trisinuate; the surface densely, minutely

punctate, with scattered intermixed coarse punctures, canaliculate, and very deeply transversely excavate

in the middle just behind the anterior margin, and also with a transverse depression on either side of the

median lobe at the base. Scutellum densely, minutely punctate. Elytra considerably wider than the

prothorax, moderately long, gradually widening to beyond the middle, and conjointly rounded behind ;

each with four faint raised lines or costs, the first abbreviated behind, the suture also raised, the rest of

the surface closely, coarsely, subseriate-punctate, with the interspaces shagreened. Beneath densely, very

finely punctate. Legs very stout, the tibic dilated externally at the apex, the tarsal joints 2-4 very deeply

emarginate, the lamelle long.

Q. Larger and more elongate, less opaque, more sparsely pubescent, the larger punctures on the prothorax

and the elytral punctuation coarser; the pubescence above and beneath paler, in great part yellowish-

cinereous ; the black marks on the prothorax more extended and connected behind ; the elytra with the

suture and sides ferrugineo-testaceous to the tip, or to near the tip; the antenne with joints 3-7 very

acutely serrate, 8-10 wider and pectinate, 11 flattened and somewhat oval.

Length 124-204, breadth 53-93 millim.

Hab. Mexico, Orizaba (Sallé), Jalapa and Misantla (Hége).

Eleven males and three females, all from the State of Vera Cruz. This conspicuous

species somewhat resembles the Brazilian Lhipidocera marginata, Kirby. In the

female joints 3-7 of the antenne gradually become more acutely serrate, 8-10 being

still more produced on the inner side, the last four joints forming a sort of club. A

female from Jalapa and a male from Orizaba are figured.

9. Sandalus conicicollis. (Tab. XXIV. fig. 30, 2.)

¢. Moderately elongate, broad, robust, rather dull; the head and mandibles black, the antenne (the basal

joint excepted) and prothorax obscure rufous, the elytra brown, the scutellum, legs, and under surface

black ; thickly pubescent, the pubescence fulvous above and fulvo-cinereous beneath. Head very densely,

minutely punctate, the mandibles also thickly punctured, except at the tip, the eyes not very prominent ;

antenne with joints 2-11 very short, 3-11 each with a very long flattened ramus, together forming an

elongate, compact, lamellate club. Prothorax convex, conical, much broader than long ; densely, minutely

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, February 1897. 4;

586 SERRICORNIA.

punctate, with intermixed slightly coarser punctures, obsoletely canaliculate, broadly transversely depressed

on the disc before the apex and also transversely depressed before the base. Scutellum densely, minutely

punctate. Elytra very much wider than the prothorax, elongate, widening to beyond the middle, and

conjointly rounded at the apex, constricted at the base, with the humeri prominent and rounded; each

with five oblique raised costs, the inner one abbreviated behind and connected posteriorly with the raised

suture by three transverse raised lines, the outer two indistinct, the interspaces very coarsely and closely

subseriate-punctate, the first and second with two rows of punctures only. Beneath densely, minutely

punctate. Legs moderately stout, the tibie strongly dilated externally at the apex, the tarsal joints 2-4

very deeply emarginate, the lamelle long.

Length 144, breadth 6 millim.

Hab. Mexico, Ventanas in Durango (Hége).

One somewhat abraded male example. Differs from S. niefod in the narrow, conical

thorax, the longer and much more coarsely punctured elytra, with more prominent

coste, aud the longer and more slender legs. The elytra resemble those of the females

of S. nietoi in shape. WS. conicicollis is allied to the North-American S. niger, Knoch

(= knochi, Guér.); but, to judge from the description, it appears to differ from that

species in having the head more finely punctured, and the larger punctures on the thorax

less distinct, these being not much coarser than the others. If Guérin’s figure (Spec.

et Icon. livr. i. no. 2, tab. fig. 18) of the male of S. knochi is correct, the present insect

has the elytra much more coarsely and less densely punctate.

Fam. DASCILLIDA~*.

Subfam. ARTEMATOPINA,.

ARTEMATOPUS.

Artematopus, Perty, Del. Anim. art. Brasil. p. 115 (1830); Lacordaire, Gen. Col. iv. p. 261.

Lairus, Castelnau, Hist. Nat. Ins. Col. i. p. 258 (1840).

This peculiar genus is confined to Tropical America, ranging as far north as

Nicaragua. ‘Twenty species have been described, all from south of the Isthmus of

Panama. Hight are now recorded from within our limits. The South-American

forms, of which there are many unnamed in collections, need a thorough revision,

the sexual characters of many of the described species not having been properly

understood. Lacordaire, too, quite overlooked the form of the tarsal lamelle, joints

2-4 having each two long lamelle (not one large one) beneath, as in the genus

Sandalus. ‘The Central-American forms belong to two well-defined groups: one with

the antenne moderately long, and with the third joint about twice as long as the

second, in both sexes; the other with the antennz as long as, or longer than, the

body, and the third joint very small, in the males, and moderately long, and with the

third joint much longer than the second, in the females. The antenne also differ in

* By G. C. Cuampton,

ARTEMATOPUS. 587

form in the two groups; in one of the species of the second group they are clothed on

all sides with long bristles, like a bottle-brush. The prosternal process is similarly

formed in the species here described. ‘The females of some of them are much larger

than the males. ‘These insects are found upon bushes in dry places, chiefly on the

savanas of the “tierra caliente.” :

a. Antenne about reaching the middle of the elytra in the males, very little shorter

in the females, filiform, or slightly tapering towards the tip, joint 3 twice as

long as 2 in both sexes.

a’, Elytra very coarsely punctate-striate throughout, usually with black spots,

which are sometimes coalescent. . . . 6 6 + + + e + + ew ee Orroratus.

i!. Elytra more finely punctate-striate on the disc than at the sides.

a, Prothorax thickly punctured ; elytra with an oblique black stripe extending

b". Prothorax very sparsely punctured; elytra in great part black. . . . . scapularis.

b. Antennz as long as or longer than the body, and with joints 2 and 3 very small

and. subequal, in the males, much shorter, and with joint 3 considerably longer

than 2, in the females.

c'. Antenne with the joints from the fourth slightly concave without and some-

what dilated towards the tip within, clothed with long fine hairs.

c', Prothorax gradually narrowing from the base, feebly rounded at the sides ;

antenne about reaching the middle of the elytra in the female.

a". Prothorax densely punctate . . . . 1 6 + ee ee ee + + puncticollis.

b!", Prothorax sparsely punctate. 2. 6 6 6 ee ee ee eee reefescens.

d', Prothorax rapidly narrowing from the base, thickly punctured; antennz

comparatively short in the female . . . . . + + + + + + + + Costaricensis.

e!. Prothorax rounded at the sides, coarsely, closely punctate; antenne about

reaching the middle of the elytra in the female . rr

d'. Antenne with the joints from the fourth straight without and a little dilated

towards the tip within, clothed with very long bristly hairs. . . . . . seticornis.

rotundicollis.

1. Artematopus irroratus. (Tab. XXVI. figg. 1, ¢; la, antenna; 14,

genitalia.)

Oblong-oval, convex, shining; head, prothorax, and scutellum rufo-testaceous or rufo-castaneous, the sides of

the prothorax testaceous or flayo-testaceous; the elytra testaceous, each with a transverse mark on the

disc a little below the base, two marks at about one-third from the apex (placed transversely, one on the

disc and one at the side), a small spot on the disc below these, and sometimes another at the shoulder, black

or piceous, these markings sometimes partly or entirely obliterated; the antenne ferruginous, the legs

testaceous, the body beneath castaneous or ferruginous, the metasternum darker; rather sparsely clothed

with yellowish-cinereous pubescence, the upper surface with long erect hairs intermixed. Head thickly,

finely punctate; antenne slender, filiform, becoming a little thinner towards the tip, about reaching to

the middle of the elytra in the male, a little shorter in the female, joint 3 more than twice as long as 2,

all the joints sparsely clothed with long fine hairs. Prothorax strongly transverse, moderately convex,

acutely margined and a little explanate at the sides, the latter gradually, arcuately converging from the

base forwards, the apex fecbly emarginate on either side; the surface thickly and somewhat coarsely

punctate, with indications of a smooth median line. Scutellum obsoletely carinate. Elytra moderately

4F2

588 SERRICORNIA.

long, narrowing from the middle, and rather obtuse at the apex; coarsely and deeply punctate-striate,

the punctures closely placed and brown in colour; the interstices convex, very sparsely, minutely punctate,

and here and there transversely wrinkled. Beneath very sparsely punctured.

Var. The basal and post-median marks coalescent, forming a large irregular black patch on the anterior half

of each elytron.

Length 63-72, breadth 33-4 millim. (¢ @.)

Hab. Nicaragua, Chontales (Belt); Panama, Bugaba, Caldera, and Pefia Blanca in

Chiriqui (Champion).

Nine examples, including the dark variety, the latter being from Bugaba. The

single example from Chontales, a pallid male, differs from the others in having the

antenne a little shorter, stouter, and more tapering, but agrees with a Chiriqui male

in the form of the genitalia.

This insect is closely allied to A. wrbanus, Kirsch, from Bogota, a specimen of which

is before me *, from which it differs in having the elytra much more coarsely punctate-

striate, with the interstices convex (in A. urbanus the strie are shallow, and the

interstices are flat on the disc and at the apex). A. marmoratus (Cast.), from Cayenne,

also appears to be a nearly allied form +, but the diagnosis is too brief for the purposes

of identification. A specimen of A. irroratus from Caldera is figured.

2. Artematopus obliquus. (Tab. XXVI. fig. 4, ¢.)

Oblong-oval, convex, shining; head, prothorax, and scutellum obscure testaceous or reddish-brown, the sides

of the prothorax, and sometimes the head also in great part, testaceous or flavo-testaceous; the elytra

testaceous or flavo-testaceous, each with an oblique black stripe of variable width extending from the

shoulder to near the apex; the antenne and the body beneath ferruginous, the metasternum darker, the

legs testaceous; rather sparsely clothed with yellowish-cinereous pubescence, the upper surface with long

erect hairs intermixed. Head thickly, finely punctate; antenne slender, filiform, becoming a little

thinner towards the tip, reaching nearly or quite to the middle of the elytra in the male, a little shorter

in the female, joint 3 twice as long as 2, and about half the length of 4, all the joints sparsely clothed

with long fine hairs. Prothorax strongly transverse, moderately convex, slightly explanate at the sides,

the latter gradually, arcuately converging from the base forwards, the apex feebly emarginate on either

side; the surface thickly and somewhat coarsely punctate, with indications of a smooth median line.

Scutellum obsoletely carinate. Elytra moderately long, narrowing from about the middle, obtuse at the

apex; punctate-striate, the strie very coarsely punctured and deep at the sides, and finely punctured and

shallow on the disc, the punctures not very closely placed; the interstices convex at the sides, almost flat

on the disc, and very sparsely minutely punctate. Beneath very sparsely punctured.

Length 6-7, breadth 37-4 millim. (¢ 2.)

Hab. Nicaraeua (Sallé), Chontales (Belt, Janson).

Four examples. Allied to A. irroratus, but a little smaller and less elongate, the

elytra much more finely punctate-striate towards the suture, with an oblique black

stripe extending from the shoulder to near the apex. In one specimen (fig. 4) this

* We are indebted to the authorities of the Dresden Museum for the loan of co-types of this and several

other species of Dascillide described by the late Th. Kirsch.

+ A specimen from Ibaque standing under this name in the British Museum differs from our insect in

having more elongate elytra.

ARTEMATOPUS. 589

stripe is very broad throughout, in the others it becomes narrower and evanescent

behind.

3. Artematopus scapularis. (Tab. XXVI. fig. 6.)

Oblong-oval, convex, shining ; obscure testaceous, the sides of the prothorax flavo-testaceous, the elytra without

about the apical half brownish-black, this colour extending forwards on the disc of each elytron and joining

a large black humeral patch (leaving a space at the sides of the ground-colour), the antenne and the body

beneath ferruginous, the legs ferrugineo-testaceous ; sparsely clothed with yellowish-cinereous pubescence,

the upper surface with long erect hairs intermixed. Head sparsely, finely punctate; antenne reaching

to about the middle of the elytra, filiform, tapering a little towards the tip, joint 3 twice as long as 2, and

half the length of 4, all the joints sparsely clothed with long fine hairs. Prothorax strongly transverse,

moderately convex, slightly explanate at the sides, the latter very gradually converging from the base

forwards, the apex feebly emarginate on either side; the surface very sparsely, finely punctate, the

punctuation becoming still sparser at the sides, with a smooth slightly raised median line. LElytra

moderately long, narrowing from the middle, obtuse at the apex; punctate-striate, the striae very coarsely

punctured and deep at the sides, and more finely punctured and shallower on the disc, the punctures not

very closely placed; the interstices convex at the sides and almost flat on the disc, very sparsely, minutely

punctate, and here and there transversely wrinkled.

Length 6, breadth 33 millim.

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One example, its sex not ascertained. Allied to A. obliquus, but differing from it in

the more finely and more sparsely punctured thorax, as well as in the colour of

the elytra.

4, Artematopus puncticollis.

§. Oblong-oval, convex, moderately shining; piceous or reddish-brown, the prothorax darker, the elytra

usually with the suture more or less and the sides below the humeri black, the antenne and legs

ferruginous or fusco-ferruginous; thickly clothed with yellowish-cinereous pubescence, the upper surface

with long erect hairs intermixed. Head densely, finely punctate; antenne slender, extremely elongate,

as long as or longer than the body, joints 2 and 3 very small, equal, 4 more than twice the length of

2 and 3 united, the joints 4-10 slightly concave without, and distinctly dilated at the apex within, all

clothed with long fine hairs. Prothorax strongly transverse, convex, gradually narrowing from the base

forwards, the apex feebly emarginate on either side; the surface densely, somewhat coarsely punctate.

Elytra moderately long, narrowing from the middle, obtuse at the apex; punctate-striate, the stria very

coarsely punctured and deep at the sides, and finely punctured and shallow on the disc, the punctures

not very closely placed; the interstices convex at the sides, almost flat on the disc, sparsely, finely

punctate and also transversely rugulose.

Q@. Oval; antennz about reaching to the middle of the elytra, joint 3 nearly twice as long as 2.

Length 42-8, breadth 23-43 millim.

Hab. Panama, San Feliz and Tolé in Chiriqui (Champion).

Nine males and three females, varying enormously in size, all from the low savana-

region bordering the Pacific Ocean. It differs from the other allied Central-American

species with a very small third antennal joint in the male in having the thorax densely

punctured. There can be no doubt that the males and females described belong to one

and the same species, as both sexes were found in each locality. A. caniceps, Kirsch,

from Bogota, appears to be closely allied to A. puncticollis.

590 SERRICORNIA.

5. Artematopus rufescens. (Tab. XXVI. figg. 2,¢; 2a, antenna; 26,

prosternum ; 2¢, genitalia; 3, antenna, 9 .)

3. Ublong-oval, rather narrow, convex, shining; piceous, fusco-ferruginous, or rufo-testaceous, the prothorax

sometimes darker than the elytra, the body beneath and the antenne rufo-castaneous or ferruginous, the

legs obscure testaceous; rather sparsely clothed with yellowish-cinereous pubescence, the upper surface

with long erect hairs intermixed. Head thickly, rather coarsely punctate, the punctuation becoming

sparser on the vertex ; antenne slender, longer than the body, joints 2 and 3 very small, subequal, 4 about

five times the length of 3, the joints 4-10 concave without and dilated at the apex within, all clothed

with long fine hairs. Prothorax strongly transverse, convex, gradually, arcuately narrowing from the

base forwards, the apex feebly emarginate on either side; the surface sparsely, moderately finely punctate,

usually with a narrow smooth space down the middle. Scutellum obsoletely carinate in some specimens.

Elytra moderately long, narrowing from the middle, conjointly rounded at the apex; punctate-striate, the

striee very coarsely punctured and deep at the sides, and more finely punctured and shallow on the disc ;

the interstices convex, flatter on the disc, very finely uniseriate-punctate, and here and there transversely

wrinkled. Beneath very sparsely, finely punctate.

@. Antenne about reaching the middle of the elytra, joint 3 considerably longer than 2.

Length 43-64, breadth 24-34 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui, Caldera, David (Champion).

Found in plenty in Chiriqui. Smaller, narrower, and usually of a more ferruginous

colour than A. puncticollis, and differing constantly from that species in the sparsely

punctured very shining thorax, the punctures also being finer. The females are

generally larger than the males.

6. Artematopus costaricensis.

brown, with the suture to beyond the middle very broadly and indeterminately, and the sides also,

piceous ; the antenne, palpi, and legs ferruginous, the body beneath castaneous; sparsely clothed with

yellowish-cinereous pubescence, the upper surface also with long erect hairs. Head closely, coarsely

punctate ; antenne very slender, about reaching the basal third of the elytra, joint 3 nearly twice as long

as 2, and half the length of 4, the joints from the fourth concave without and somewhat rounded within,

each slightly widened outwards. Prothorax strongly transverse, moderately convex, rapidly and somewhat

arcuately narrowing from the base forwards, the apex rather deeply emarginate on either side; the surface

thickly, rather coarsely punctate, the base feebly emarginate in the centre. LElytra moderately long,

narrowing from about the middle, obtuse at the apex; punctate-striate, the strize coarsely punctured and

rather deep at the sides, and finely punctured and shallow near the suture; the interstices convex at the

sides, nearly flat on the disc, minutely uniseriate-punctate, and also transversely wrinkled.

Length 44, breadth 24 millim.

Hab. Costa Rica, Caché (Rogers).

One specimen. ‘This insect has shorter and more slender antenne than the females

of the allied forms. The thorax is less transverse and more narrowed in front than in

A. rufescens, and is also more closely punctured.

7. Artematopus rotundicollis.

3. Oblong- or elongate-oval, convex, shining ; piceous or reddish-brown, the metasternum usually darker than

the abdomen, the antenne piceous or ferruginous, the legs ferruginous or obscure testaceous, the tibix

ARTEMATOPUS. 591

sometimes darker; thickly clothed with yellowish-cinereous pubescence, the upper surface with long erect

hairs intermixed. Head densely, coarsely punctate; antennw slender, longer than the body, joints

2 and 3 very small, subequal, the joints 4-10 concave without and dilated at the apex within, all clothed

with long fine hairs. Prothorax strongly transverse, convex, rounded at the sides, narrowing from a

little before the base to the apex (usually appearing slightly narrowed behind), the apex feebly emarginate

on either side; the surface thickly, coarsely punctate, with indications of a smooth raised median line at

the base. Scutellum closely punctured, and sometimes obsoletely carinate. Elytra moderately long,

narrowing from about the middle, obtuse at the apex; punctate-striate, the strie very coarsely punctured

and deep at the sides, and shallow and more finely punctured on the disc; the interstices convex,

flatter on the disc, very distinetly punctured, and also transversely wrinkled. Beneath very sparsely

punctured.

@. Antenne reaching to a little beyond the middle of the elytra, joint 3 twice as long as 2.

Length 43—74, breadth 23-33 millim.

Hab. Nicaracua, Chontales (Belt, Janson) ; Panama, Bugaba (Champion).

Found in abundance at Bugaba. More elongate and narrower than A. puncticollis,

the thorax more rounded at the sides, less densely punctured, and more shining, the

elytra more coarsely punctate-striate on the disc, and with the interstitial punctures

coarser. More parallel than A. rufescens, with the thorax more rounded at the sides,

and much more coarsely and closely punctured, the interstitial punctuation of the

elytra not so fine. A. rotundicollis approaches A. bogotanus, Kirsch, from Bogota ;

but it has the thorax and the elytral strie much more coarsely punctured, and the

elytra with convex interstices.

8. Artematopus seticornis. (Tab. XXVI. figg. 5,3; 5a, antenna.)

g. Oval, very convex, shining; piceous or reddish-brown, the scutellum and the elytra with the suture to

beyond the middle broadly and indeterminately, and usually the sides also, black, the sutural stripe some-

times narrower and sometimes greatly extended; the antennz ferruginous, the legs ferruginous or obscure

testaceous, the tibize sometimes darker; sparsely clothed with yellowish-cinereous pubescence, the upper

surface with long erect hairs intermixed. Head very broad, densely, coarsely punctate; antenne slender,

longer than the body, joints 2 and 3 very small, equal, 4 five times as long as 3, 4-10 slightly dilated at

the apex within, all clothed with very long, projecting bristly hairs. Prothorax very convex, strongly

transverse, rounded at the sides, the latter converging from about the basal third forwards, the base

distinctly emarginate in front of the scutellum, the apex rather deeply emarginate on either side; the

surface thickly, rather coarsely punctate, and sometimes obsoletely canaliculate in front. LElytra

comparatively short, narrowing from about the middle, truncate at the apex; punctate-striate, the

strie very coarsely punctured and deep at the sides, and more finely punctured and shallow on the

disc; the interstices convex, flatter on the disc, minutely, uniseriate-punctate, and also transversely

wrinkled. Beneath very sparsely punctured.

Length 33-43, breadth 2-23 millim.

Hab. Panama, Bugaba (Champion).

Eight examples, all males. Differs from all the other Central-American species in

its short form and very convex thorax, as well as in the very long bristly hairs on the

joints of the antenne, these hairs being very conspicuous, and nearly as long as the

erect ones on the elytra, resembling those of a bottle-brush. The antennal joints

4-10 are nearly straight on their outer edge. The thorax is distinctly emarginate in

092 SERRICORNIA.

the centre at the base. The sutural stripe varies in width, it being broadly extended

in some specimens.

CTESIBIUS.

Head broad, vertical, produced in front, very deeply sunk into the prothorax, the eyes rounded, rather small,

and not entirely free; labrum not visible; mandibles very short and curved, the apices visible ; apical

joint of the maxillary palpi rather stout, subsecuriform, that of the labial palpi subtriangular; antenne

very elongate, slender, joint 1 very stout, 2 short, shorter than 3, 3 shorter than 4, 4-11 long and

subequal; prothorax short, completely margined at the sides; scutellum small, transversely triangular ;

prosternum moderately long before the cox, extending broadly between them behind, the process

margined on either side between the cox, and received by a broad deep notch in the mesosternum, the

latter horizontal; anterior coxe oval, with large trochantin; middle coxe widely separated, with small

trochantin ; posterior coxe separated by the intercoxal process of the abdomen, the coxal plates gradually

widened inwards; ventral segments 1-4 short, 5 as long as 2-4 united; tarsi with joints 3 and 4 each

with two long lamella, 4 very small, the claws simple.

The single species belonging to this genus is metallic blue above, and it has entirely

the facies of a small Eumolpid. It differs from Artematopus and Carcinognathus * in

having the fifth ventral segment very largely developed, the third and fourth tarsal

joints only bilamellate (instead of joints 2-4), the apical joint of the maxillary palpi

stouter, and the prosternal process margined between the coxe only, the process not

separated anteriorly from the rest of the prosternum. ‘The single specimen obtained

is in too fragile a condition to dissect the parts of the mouth.

1. Ctesibius eumolpoides. (Tab. XXVI. figg. 7+; 7a, prosternum; 74,

abdomen. )

Oblong-oval, rather convex, very shining; metallic blue, the body beneath and the antenne and legs black,

the tips of the tarsi testaceous ; above very sparsely clothed with long, fine, erect, fuscous hairs, the fifth

ventral segment thickly, the rest of the under surface very sparsely, cinereo-pubescent. Head very

sparsely, the epistoma more thickly, punctate, the front broadly transversely depressed in the middle

above ; antenne about two-thirds the length of the body, with long projecting hairs. Prothorax strongly

transverse, bisinuate at the base, and truncate at the apex, transversely compressed at the sides in front,

rapidly and obliquely narrowing from the basal third forwards, and also narrowed behind, the hind angles

acute; the surface sparsely, finely punctate, the punctures very distinct. Elytra three and one-half times

the length of, and wider than, the prothorax, subparallel in their basal half and obliquely converging

behind, compressed at the sides below the shoulders, the humeri appearing swollen; sparsely, rather

coarsely punctate, the punctures arranged in regular series towards the sides and base. Beneath sparsely,

rather coarsely punctate, the fifth ventral segment very densely, minutely punctate, the prosternum with

the space between the middle and the flanks rugulose.

Length 32, breadth 2 millim.

Hab. Mexico (Sallé).

One example, its sex not ascertained.

* Kirsch appears to have overlooked the appendiculate form of the claws in this monotypic genus.

* In this figure the tarsi have been incorrectly drawn by our artist, the second joint not being lamellate.

ANCHYTARSUS.—TETRAGLOSSA. 593

Subfam. DASCILLINA.

Group ANCHYTARSINI.

ANCHYTARSUS.

Anchytarsus, Guérin, Spec. et Icon. gén. des Anim. Art. livr. vi. no. 15, p. 1, tab. (1849); Horn,

Trans. Am. Ent. Soc. vill. p. 86.

The single known species of this genus inhabits the Eastern States of North America.

A second from Nicaragua is now added.

1. Anchytarsus substriatus. (Tab. XXVI. fig. 8, 2.)

Q. Oblong-oval, moderately convex, shining; piceous, the front of the head, the antenne and legs, and the

epipleure of the elytra obscure ferruginous, the palpi testaceous, the tips of the mandibles black; thickly

clothed with fine brownish pubescence. Head densely, minutely punctate, with intermixed slightly

coarser punctures, the eyes moderately large ; antenne about half the length of the body, rather slender,

joint 2 very small, the others elongate and serrate. Prothorax convex in front, transverse, rapidly,

arcuately narrowing from the base forwards, the hind angles sharp, the base bisinuate and very distinctly

crenulate; the surface punctured like that of the head. Llytra nearly four times as long as the prothorax,

gradually widening to a little beyond the middle ; densely, minutely punctate, and obsoletely punctate-

striate towards the sides and apex. Beneath densely, minutely punctate.

Length 10, breadth 43 millim.

Hab. Nicaracua, Chontales (Belt).

One example. This insect bears a very close superficial resemblance to Tetraglossa

palpalis, and also to various Ptilodactylini, differing from the former in the securiform

apical joint of the maxillary palpi, and from the latter in the simple tarsi. It is not

very closely allied to the North-American A. bicolor (Melsh.).

TETRAGLOSSA.

Head vertical, not prolonged in front, without frontal suture, sunk into the prothorax up to the eyes, the latter

large and rounded ; labrum broad, prominent ; mandibles in great part exposed, short, curved, bifid at the

tip, the latter hidden beneath the labrum; mentum broad, strongly transverse, narrowing in front, shorter

in the male than in the female; ligula broad and prominent, deeply emarginate in the centre in front,

and with a slender lobe on either side of the emargination and a similar lobe at the outer angle ; apical

joint of the maxillary palpi long and slender, elongate-triangular ; apical joint of the labial palpi furnished

with three very long, stout, flattened, densely reticulate and pubescent, submembranous lobes, and the third

joint elongate, in the male, the apical joint stout and subsecuriform, and the third joint very short, in the

female; outer lobe of the maxille divided into two tapering ciliate lobes, the external one slender and

very elongate, the inner lobe stout; antenne long, serrate, the second joint very small; prosternum —

horizontal and moderately long in front of the coxe, extending rather narrowly between them behind,

the process received into a deep notch in the mesosternum ; anterior coxe oval, a little more prominent

than the prosternal process, with large trochantin ; middle coxe a little more distant than the anterior

coxe, with distinct trochantin; posterior cox considerably dilated inwards, separated by a narrow

intercoxal process; prothorax obsoletely margined at the sides behind ; tarsi rather slender, simple, the

joints 1-4 decreasing in length, 1 about as long as 2 and 3 united, and much shorter than 5, the claws

simple; tibial spurs small.

The above characters are taken from a single species, which is widely distributed in

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 1, February 1897. 4G

594 SERRICORNIA.

Central America. This insect is closely allied to Anchytarsus, Guér., but differs from

it in the extraordinary trilobate process of the labial palpi in the male, and the slender,

elongate apical joint of the maxillary palpi in both sexes. The maxille also differ in

form from those of Anchytarsus. The submembranous lobes of the labial palpi are

almost black, and densely set with very short, minute hairs, the surface probably being

highly sensitive. The labial palpi of the female are formed as in Anchytarsus.

1. Tetraglossa palpalis. (Tab. XXVI. figg. 9, ¢; 9a, labium; 98, maxilla

and maxillary palpus; 9c, genitalia, ¢; 10, labium, ¢ .)

Oblong-oval, moderately convex, shining ; piceous or piceo-castaneous, the front of the head and the antennz

ferruginous or fusco-ferruginous, the femora more or less testaceous at the base, with the apex black or

piceous, the tibiae and tarsi ferruginous or fusco-ferruginous, the tibize sometimes piceous at the base ;

somewhat thickly clothed with fine brownish or yellowish-brown pubescence. Head densely, minutely

punctate; antenne in the male fully two-thirds, in the female about one-half, the length of the body, the

joints from the third elongate and acutely serrate. Prothorax transverse, convex in front, compressed at

the sides anteriorly, widest a little before the base, the sides rounded behind and rapidly, somewhat

obliquely converging from the basal third forwards, the anterior angles prominent, the base crenulate ;

the surface thickly, minutely punctate, with intermixed slightly coarser punctures. Elytra moderately

long, a little narrower at the base than the prothorax, widest at the middle; thickly, minutely punctate,

and obsoletely punctate-striate towards the sides and apex. Beneath densely, minutely punctate.

Length 73-11, breadth 33-43 millim. (d @.)

Hab. Mexico, Jalapa (Hége), Teapa in Tabasco (H. H. Smith); British Hoypuras,

Belize (Blancaneaux) ; Nicaracua, Chontales (Janson); Panama, Volcan de Chiriqui

4000 teet (Champion).

Three males and four females, varying greatly in size. This insect (like Cladus

maaillaris in the Eucnemide) affords an example of a species closely resembling

another superficially, but yet differing totally from it in important points of structure.

Group CNEOGLOSSINI.

CNEOGLOSSA.

_ Cneoglossa, Guérin, Spec. et Icon. gén. des Anim. Art. livr. ix. no. 36, p. 1, tab. (1849).

The two insects* here referred to this genus agree with Guérin’s description and

figures, except as regards the form of the antenne, these organs in his single species,

C. collaris, Guér., from Colombia, being filiform and feebly serrate, instead of dilated

and strongly serrate, as in the Central-American forms. The latter also have the third

joint slightly shorter (instead of longer) than the fourth. These differences, however,

are specific, rather than generic. The head is completely hidden beneath the thorax,

as in Helodes, from which the present genus differs in the simple tarsi; the semicircular

thorax, with broadly flavous and almost transparent sides, gives these insects the form

of many small Lampyride. The anterior coxe are furnished with a small trochantin.

* Tam unable to make out the form of the lobes of the maxille in O. lumpyroides, the only species dissected.

)

CNEOGLOSSA.—DICRANOPSELAPHUS., 595

The epistoma is prolonged beneath, and there is no visible labrum, the head being

formed very much as in the species of the group Macropogonini of Horn.

1. Cneoglossa lampyroides. (Tab. XXVI. fig. 11.)

Elongate-oval, rather depressed, shining ; brownish-black or fuscous, the prothorax dilute yellow or reddish-

yellow, with a black median vitta, the sides semitransparent, the antenne black, with the two basal

joints usually reddish, the legs piceous or brownish, with the base of the femora, the knees, and tarsi

sometimes paler; thickly pubescent, the hairs on the elytra brown or brownish-cinereous and rather

coarse. Head very minutely punctured; antenne—(¢) more than half the length of the body, broadly

dilated and serrate from the third joint, the second joint very small, the third slightly shorter than the

fourth—( 2) much shorter, with joints 4-11 moderately dilated. Prothorax strongly transverse, widest

a little before the base, semicircular as viewed from above, truncate in front and with the base emarginate

on either side, concave laterally, the hind angles rather sharp and projecting backwards; the surface

thickly, very minutely punctate. Elytra about four times the length of the prothorax, and a little wider

than it, subparallel, the humeri rounded ; rather coarsely punctate-striate, the strie shallow, the inter-

stices somewhat convex and densely, rugulosely punctate.

Length 34-4, breadth 13-13 millim. (¢ 9.)

Hab. Mexico, Cuernavaca in Morelos (Flohr); Nicaragua, Chontales (Janson).

Six examples from Nicaragua and one from Mexico, representing apparently the

sexes of one species, as they only differ in the form of the antenne, the supposed male

being from Mexico. A Nicaraguan specimen is figured.

2. Cneoglossa brevis.

Oblong-oval, feebly convex, shining ; brownish-black, the elytra black towards the apex, the prothorax dilute

yellow, with a black median vitta, the antenn black, with the two basal joints testaceous, the epistoma

and legs testaceous; the elytra clothed with brownish pubescence. Antenne about half the length of the

body, the joints from the third broadly dilated and acutely serrate. Prothorax as in C. lampyroides, but

more sparsely and less distinctly punctate. Elytra about three and one-third times the length of the

prothorax ; punctate-striate, the striee shallow, the interstices densely, rugulosely punctured.

Length 8, breadth 13 millim. (¢.)

Hab. Panama, Tolé (Champion).

One abraded example, with the apical three joints of the antenne broken off. Less

elongate and smaller than C. lampyroides, the antenne much more acutely serrate from

the third joint, the thorax smoother, the elytra shorter, &c.

Subfam. HUBRITN AE.

DICRANOPSELAPHUS.

Dicranopselaphus, Guérin, Rev. et Mag. Zool. 1861, p. 531; Horn, Trans. Am. Ent. Soc. viii.

p. 97 (1880).

Five species of this interesting genus have been described—four from Mexico and

one from the United States; a fifth is now added from Guatemala.. The bifid tarsal

claw is peculiar to the males, the claws being simple at the tip in the females.

4G 2

596 SERRICORNIA.

Dicranopselaphus is extremely closely allied to Ectopria, Lec., but differs from it in

the dilated and lobed fourth tarsal joint, and the bi-appendiculate apical joint of the

maxillary palpi. The thorax and elytra are, as in Ectopria, very peculiarly sculptured.

The antenne are pectinate in the males and serrate in the females. The general

structure of the mouth-parts, antenne, &c. is very beautifully illustrated by Guerin.

a. Antenne (¢) pectinate from the fourth joint, the pectinations arising from the

apex of each joint ; elytra with pale linear markings. [Furcrpatpus, Guér.] . lesueuri.

6. Antenne (¢) pectinate from the third joint, the pectinations arising from before

the apex of each joint. [D1cranopsELapnus, Guér. |

a’. Antenne black, with the two basal joints yellow ; elytraalmost unicolorous . rufescens.

b!. Antenne black, with the two basal joints reddish-brown* ; prothorax ferru-

ginous, with a black patch on the middle of the disc in front, the basal

impressions shallow; elytra with two broad angulated, transverse fascie,

connected laterally, and the apical margin, broadly, testaceous . . . . . pictus.

c'!. Antenne black, with the apical two or three joints testaceous or flavo-testa-

* ceous; prothorax with deep basal impressions ; elytra with two very narrow

angulated, transverse fasciz, connected laterally, the anterior one not reaching

the suture, and some lines at the sides, testaceous, these markings only clothed

with pallid pubescence . 2. 1. 1 ee ee ee ee ee ee ee ENOSUS.

d', Antenne testaceous, the basal four or five joints sometimes slightly infuscate ;

prothorax with deep basal impressions; elytra very much as in D. venosus,

but with the pallid pubescence extending over a great part of the surface . . flavicornis.

1. Dicranopselaphus lesueuri.

Dicranopselaphus lesueurti, Guér. Rev. et Mag. Zool. 1861, p. 533, t. 17. fig. 1 (head from beneath,

showing the antenne and maxillary palpi) (¢)*.

Hab. Mexico (Lesueur, in coll. Chevrolat +).

Unique in Chevrolat’s collection.

2. Dicranopselaphus rufescens.

Dicranopselaphus rufescens, Guér. Rev. et Mag. Zool. 1861, p. 534, t. 17. figg. 2, 2 a-c (3) ',

Hab. Mexico, near Cordova (Nieto, in coll. Guérin 1).

Unique in Guérin’s collection.

8. Dicranopselaphus pictus, (Tab. XXVI. fig. 12, ¢.)

Dicranopselaphus pictus, Guér. Rev. et Mag. Zool. 1861, p. 535, t. 17. fig. 4 (g)*.

Hab. Mexico, Tepanistlahuaca in Oaxaca (SaJ/é).

Unique in the Sallé collection. A figure of this insect is given for comparison with

the allied species.

* The apical three joints are broken off in the type.

DICRANOPSELAPHUS.—ECTOPRIA. 597

5. Dicranopselaphus venosus, (Tab. XXVI. figg. 13, ¢; 13a, antenna.)

3. Broadly oboval, moderately convex, opaque (slightly shining when denuded of pubescence); black or

piceous, the elytra sometimes brown, the latter with a slender V-shaped mark on the middle of the disc

towards the suture, connected laterally with a narrow sharply angulated post-median fascia, and some

short irregular lines towards the sides, brownish or ferrugineo-testaceous, and in pale specimens also with

some spots at the base and the apical margin broadly ferrugineo-testaceous; the antenne black or

brownish-black, with the apical two or three joints testaceous or flavo-testaceous, the legs piceous, with

the tarsi testaceous, the femora sometimes paler than the tibie ; the body beneath black or piceous, the

prothorax and mesosternum sometimes ferrugineo-testaceous ; the upper surface thickly clothed with very

short pubescence, the pubescence on the lighter elytral markings yellowish or yellowish-cinereous, that on

the other parts blackish or fuscous. Head densely, rugulosely punctate, the eyes large and rather narrowly

separated; antennx long, tapering at the tip, strongly pectinate from the third joint, the pectinations

arising from before the apex of each joint. Prothorax very short, two and one-half times as broad as

long, truncate at the apex (as viewed from above), rapidly arcuately narrowing from the base forwards,

the hind angles sharp; the surface crowded with short, sinuous, irregular, anastomosing lines of very fine

punctures, the small interspaces shining and almost smooth, the disc convex in the centre and obliquely

depressed on either side of the middle at the base. Elytra feebly rounded at the sides, slightly compressed

below the humeri, obtuse behind ; the surface crowded with short anastomosing lines of fine punctures,

the lighter-coloured lines somewhat raised and smoother, the interspaces densely, excessively minutely

punctate.

¢. Antennz much shorter, acutely serrate from the fourth joint, the third joint long and triangular; the eyes

smaller and widely separated; the tarsal claws undivided at the tip.

Length 3-34, breadth 2),-3 millim.

Hab. Guatemaa, Zapote (Champion).

Nine males and one female. Closely allied to D. flavicornis and D. pictus, Guér.,

differing from the first-mentioned in having the antenne black, except at the tip, and

the pallid pubescence on the elytra confined to the lghter-coloured markings, and

from D. pictus in the form of the elytral markings. The Zapote specimens vary in

colour, but the slightly raised reticulate markings on the elytra are perfectly constant,

and indicated by lines of pallid pubescence.

6. Dicranopselaphus flavicornis. (Tab. XXVI. fig. 14, ¢.)

Dicranopselaphus flavicornis, Guér. Rev. et Mag. Zool. 1861, p. 534, t. 17. figg. 8, 3a-f(3 2).

Hab. Meuxico, Toxpam, near Cordova (Sallé 1), Orizaba (fohr), t Oaxaca (Hoge).

Described from five specimens found by Sallé at Toxpam, four of which are contained

in his collection. The eight examples received from Hoge are labelled Oaxaca, but it

is probable that they are really from Cordova or Jalapa. The antenne sometimes

have the basal joints slightly infuscate. A male is figured.

ECTOPRIA.

Ectopria, Leconte, Proc. Acad. Phil. vi. p. 351 (1853) ; Horn, Trans. Am. Ent. Soe. viii. p. 95.

Eurea, Leconte, loc. cit. p. 352.

The single known representative of this genus is somewhat widely distributed in the

United States of North America, and it appears to be extremely variable. The Panama

598 SERRICORNIA.

insects referred to it agree accurately with Dr. Horn’s definition of Hctopria. The

tarsal claws are cleft at the tip in the males and simple in the females; the tarsi them-

selves are slender, the fourth joint not being dilated and distinctly produced beneath

the fifth joint, as in Dicranopselaphus; and the apical joint of the maxillary palpi is

not appendiculate.

1. Ectopria reticulata. (Tab. XXVI. figg. 15, ¢; 15 a, antenna, ¢; 16,

antenna, @.)

¢. Broadly oboval, moderately convex, opaque; brown, the prothorax reddish-brown, with some spots at the

base and sides piceous; the elytra with one or two streaks at the base, a V-shaped mark on the inner

part of the disc before the middle, extending along the suture to the base, two oblique, angulate, partly

coalescent, post-median fascis (enclosing two spots of the ground-colour on each elytron), the anterior

one extending down the suture to the apex, and both joined laterally and with the V-shaped mark to

two oblique streaks, and the apical margin more or less, ferrugineo-testaceous ; the antennz with joints

1-5 brownish or pitchy-brown, the other joints testaceous or flavo-testaceous; the legs brownish or

obscure testaceous, the tarsi flavous; the body beneath obscure ferruginous or brown ; the upper surface

densely clothed with very short pubescence, the pubescence on the light-coloured portions of the prothorax

and on the network of pale lines on the elytra yellowish-cinereous, that on the other parts partaking of

the ground-colour. Head densely punctured, the eyes very large and rather narrowly separated ; antenne

moderately long, tapering at the tip, pectinate from the third joint, joint 38 much longer than 4.

Prothorax very short, two and one-half times as broad as long, rapidly and arcuately narrowing from the

base forwards, slightly emarginate in front (as viewed from above) and bisinuate at the base, the hind

angles rather obtuse; the surface crowded with short, irregular, anastomosing lines of fine punctures

(appearing densely punctate), with smoother spaces here and there, and deeply obliquely depressed on

either side of the middle at the base. Elytra subparallel towards the base, rounded behind, widest a little

beyond the middle, compressed at the sides below the humeri; the dark parts of the surface crowded with

short, irregular, anastomosing lines of fine punctures, the interspaces between which are shagreened, the

pale markings sparsely punctured (appearing slightly raised).

@. Antenne shorter, serrate from the third joint, the third joint much longer than the fourth; the eyes

smaller and more widely separated ; the tarsal claws undivided at the tip.

Length 33-32, breadth 27-23 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Two males and one female, the latter having the pale reticulation on the elytra

formed of very narrow lines. The elytral sculpture is much finer than in E. vermi-

culata. The slender tarsi, the simple apical joint of the maxillary palpi, the shorter

and more feebly pectinate antenne, the dull and more densely punctured surface, the

different elytral markings, &c., separate E. reticulata from Dicranopselaphus flavicornis.

2. Ectopria vermiculata, (Tab. XXVI. figg. 17, 2; 17a, antenna.)

@. Broadly oboval, moderately convex, rather shining; ferruginous, the elytra with three oblong marks

immediately below the base—one at the shoulder, one close to the suture, and one on the disc,—and a

common angulate transverse fascia a little beyond the middle, the latter extending forwards along the

suture almost to the innermost basal mark, brownish-black, and the apical margin broadly yellowish ;

the eyes and antenne black, the latter with the two basal joints reddish-testaceous and the apical joint

brown ; the legs and palpi testaceous ; the upper surface thickly clothed with very short fine sericeous

pubescence, the pubescence golden on the light-coloured portions and fuscous elsewhere. Head densely, very

minutely punctate, the eyes rather small and widely separated ; antenne moderately long, stout, tapering

ECTOPRIA.—EUCINETUS, 599

at the tip, acutely serrate from the fifth joint, joint 3 elongate, longer than 4, 5 shorter than 4, 5-10

about equal in length. Prothorax very short, more than twice as broad as long, rapidly and arcuately

narrowing from the base forwards, emarginate in front and feebly bisinuate at the base, the lateral

margins reflexed, the hind angles sharp ; the surface with short, sinuous, irregular, depressed, anastomosing

lines of very fine punctures, the interspaces between which are densely, excessively minutely punctate,

the dise depressed on either side of the middle at the base. Elytra feebly rounded at the sides, some-

what obliquely narrowing behind, and rather abruptly declivous from about the middle ; sculptured like

the prothorax, but with the short sinuous anastomosing lines of punctures deeply impressed and very

conspicuous, and the very minute dense punctuation of the interspaces more distinct.

Length 33, breadth 24 millim.

Hab, Panama, Bugaba (Champion).

One example. In this insect the short, sinuous, anastomosing lines of punctures

on the elytra are much more deeply impressed than in any of the species of Dicrano-

pselaphus. |

Subfam. HUCINETINA.

EUCINETUS.

Eucinetus, Germar, Mag. Ent. ili. p. 255 (1818); Guérin, Spec. et Icon. gén. des Anim. Art. livr. i.

no. 4, p. 1; Tournier, Dascillides du Bassin Léman, p. 87; Horn, Trans. Am. Ent. Soc. viii. p. 91.

A holarctic genus containing sixteen described species*. ‘The single representative

from Guatemala is closely allied to various North-American forms. These insects

show a remarkable resemblance to the genus Orchesia and other Melandryide, and also

to the Mordellide, in the form of the middle and hind legs. Reitter places Hucinetus

in the Clavicorn-series, near Clambus.

1. Kucinetus strigipennis. (Tab. XXVI. fig. 18 +.)

Nayicular, convex, shining ; black or blackish-brown, the head and prothorax obscure castaneous ; the antennz

with the basal three joints testaceous, the apical one or two joints yellow, and the others black or slightly

infuscate ; the palpi testaceous; the legs obscure ferruginous, with the tip of each of the joints 1-4 of

the four hinder tarsi, as well as the extreme apex of the hind tibie, black, and the anterior tarsi, and the

apical joint of each of the other tarsi, testaceous; thickly clothed with very fine, sericeous, brownish

pubescence. Head densely, very minutely punctate; antenne moderately long, very slender, a little

thickened at the tip, joints 1 and 2 stouter than the others, 2 slightly longer than 1, 3 and 4 each nearly

as long as 2, 5-10 decreasing in length, 10 not much longer than broad, 11 oval. Prothorax more

shining than the elytra, sparsely and less distinctly punctured than the head, the punctuation excessively

minute. Elytra closely, transversely strigose, with a series of fine shallow longitudinal grooves, the inter-

spaces between which appear to be slightly convex, and a well-marked sutural stria, extending from the

apex. to before the middle. Posterior tibiz with a single long spur.

Length 3-34, breadth 13-17 millim.

Hab. GuateMALA, Cerro Zunil and San Gerdnimo (Champion).

One specimen from each locality, probably females. The example from Cerro Zunil

differs from the other in being less elongate; it also has the intermediate joints of the

* EH. subawillaris and £E. substriatus, Fairm., from Madagascar, belong to Hustrophus (Melandryide),

cf. Fairm., Ann. Soc. Ent. Fr. 1886, p. 39.

+ The antenne are much more slender than represented by our artist.

600 SERRICORNIA.

antenne only slightly infuscate, and the elytra black and more shining. There is no

trace of strie in the shallow longitudinal grooves on the elytra; the sutural stria,

however, is sharply defined. This species is allied to E. terminalis, Lec., and E. stri-

gosus, Lec. (nec Reitter), but may be separated from them by the sculpture or colour

of the elytra; from E. morio, Lec., the single tibial spur will serve to distinguish it.

Subfam. HELODINZ.

HELODES.

Elodes, Latreille, Préc. car. gén. Ins. p. 44 (1796); Guérin, Spec. et Icon. gén. des Anim. Art,

livr. iii. no. 9, p. 1 (part.).

Helodes, Jacquelin Duval, Gen. Col. Europ. iii. p. 150; Tournier, Dascillides du Bassin Léman,

p. 28; Horn, Trans. Am, Ent. Soc. vii. p. 103.

Sacodes, Leconte, Proc. Acad. Phil. vi. p. 356 (1858).

Of this genus, which has a somewhat similar distribution to Cyphon, a single repre-

sentative only has been detected within our limits; it is closely allied to European and

North-American forms.

1. Helodes mexicana. (Tab. XXVI. figg. 19, 2; 194, antenna.)

2. Oboval, moderately convex, shining, finely pubescent ; nigro-piceous, the prothorax yellow, with a broad

black patch on the disc, extending from the base to near the apex and abruptly narrowed in front, the

antennx black, the legs piceous, with the femora paler. Head invisible from above, thickly punctured ;

antenne filiform, stout, very elongate, about two-thirds the length of the body, joint 3 minute, 4 very

elongate, longer than 5, 5-11 subequal in length. Prothorax transverse, truncate in front, semicircular

as viewed from above, the apical margin feebly and the lateral margins strongly reflexed; the surface

thickly, very finely punctate, the punctuation becoming sparser at the sides, the flavous lateral portions

semitransparent. Elytra three and one-half times the length of the prothorax, widening from the base

to about the middle; closely, moderately finely, rugulosely punctate, the punctuation much coarser than

that of the prothorax, and with indication of shallow longitudinal grooves on the disc.

Length 44, breadth 23 millim.

Hab. Mexico, Chilpancingo in Guerrero 4600 feet (H. H. Smith).

One example. ‘This insect resembles the European H. marginata (Fabr.), but it has

much longer and stouter antenne, a less transverse thorax, darker legs, &. Amongst

the North-American species, it is perhaps nearest allied to H. maculicollis, Horn.

PRIONOCYPHON.

Prionocyphon, Redtenbacher, Fauna Austriaca, ed. 2, p. 517 (1858) ; Jacquelin Duval, Gen. Col.

Europ. iii. p. 151; Tournier, Dascillides du Bassin Léman, p. 45; Horn, Trans. Am. Ent.

Soc. vill. p. 99.

Seven species of this genus are known—one from Europe, two from North America,

and four from Japan. Two others are now added from Central America, both

interesting new forms. They are usually very scarce insects; P. pilicornis, however,

has been found in numbers, on the decaying branches of fallen trees in forest-clearings.

PRIONOCYPHON. 601

1. Prionocyphon pilicornis. (Tab. XXVI. figg. 20, ¢; 20a, antenna, ;

21, antenna, 2.)

S$. Rotundate or rotundate-oval, very convex, shining; black or pitchy-black, usually with a violaceous or

brassy lustre, the body beneath, the front of the head, the oral organs, antenne, and legs testaceous; the

upper surface thickly clothed with rather long cinereous pubescence, the elytra with a very broad common

transverse patch of fuscous or brownish pubescence on the disc a little before the middle (usually rubbed

off). Head, prothorax, and scutellum sparsely, very minutely punctate ; head very broad, the eyes large

and prominent; antenne elongate, in small specimens fully as long as the body, joint 1 greatly

dilated on the inner side, ear-shaped, 2 small, globose, 3 very minute, 4-11 elongate, flattened, a little

dilated, and parallel towards their apex, 4 longer than 5, 5-11 subequal in length, all the joints clothed

with long projecting hairs; prothorax very short and convex ; elytra abruptly declivous from about the

middle, appearing transversely gibbous towards the base when viewed from the side, thickly, finely

punctate, the punctuation much coarser than that of the prothorax; prosternal process very narrow,

laminiform,

Var. The sides of the head, two marks at the base of the prothorax, and a very large common patch on the

disc of the elytra, extending to the base, testaceous.

Q. Short-oval, the patch of darker hairs on the elytra more extended, in one specimen occupying nearly the

whole of the upper surface; antennz much shorter and very feebly serrate, finely pubescent, joint 1 much

smaller and very much less dilated within, 3 not much shorter than 2; eyes not prominent.

Length 23-4, breadth 2-3 millim.

Hab. Guatemata, San Gerénimo, El Tumbador, Cerro Zunil (Champion) ; Nicaragua,

Chontales (Janson); Panama, Bugaba, Volcan de Chiriqui (Champion).

Thirty-five males and six females, most of those from Chiriqui being in a bad state

of preservation. The variety is represented by three examples from Chiriqui. The

insects described as the females differ greatly from the males in the form of the

antenne, as well as in their non-prominent eyes; but, as they were obtained at Cerro

Zunil and on the Volcan de Chiriqui with the males, there can be little doubt that

they really belong here. In some of the males the third antennal joint is so minute

as to be scarcely visible, the corresponding joint in the females being much larger, and

not very much shorter than the second. ‘The long hairs on the antenne of the males

are conspicuous. ‘The insect varies greatly in size.

2. Prionocyphon auritus. (Tab. XXVI. figg. 22, ¢; 22a, antenna.)

Rotundate-oval, very convex, shining; black, with a brightly brassy lustre, the front of the head, oral organs,

antenne, and legs ferruginous, the elytra with a red apical patch; the upper surface thickly clothed with

rather long cinereous and brownish pubescence. Head, prothorax, and scutellum sparsely, very minutely

punctate; head very broad, the eyes not prominent; antenne short, not half the length of the body,

finely pubescent, joint 1 enormously dilated on the inner side, ear-shaped, 2 oval, 3 very small, much

shorter than 2, 4-11 moderately long, flattened, a little dilated, and subparallel towards their apex, very

gradually decreasing in length; prothorax very short and convex; elytra declivous from about the

middle, thickly, minutely punctate, the punctuation coarser than that of the prothorax.

Length 31, breadth 23 millim. (¢.)

Hab. Panama, Pefia Blanca 3000 feet (Champion).

One specimen, evidently a male. The antenne in this insect are even shorter than

they are in the female of P. pilicornis, and have the basal joint enormously dilated.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, February 1897. 4H

602 SERRICORNIA.

The elytral punctuation is finer than in that species. The apical red patch is very

sharply defined. The elytra appear to be clothed with intermixed cinereous and

brownish hairs:

PRIONOSCIRTES.

Head very broad, deflexed ; maxillary palpi with the apical joint oval, pointed at the tip; labial palpi with

the apical joint oval, arising from near the base of the second joint, and at a right angle to it; antenne

serrate, joint 1 stout, oval, dilated on the inner side, 2 and 3 very short, 2 moderately stout, globose,

3 narrower and subtriangular, 4-11 rather elongate, flattened, and somewhat dilated, subparallel towards

their apex, gradually decreasing in length ; hind coxe contiguous along the median line, the dilated inner

portion of the coxal plates transverse oval ; legs as in Scirtes.

The extraordinary little insect from Guatemala from which the above characters are

taken may be described as a Prionocyphon with the saltatorial hind legs of a Scirtes,

and the hind coxe of a flelodes or Cyphon. The antenne are formed as in Priono-

cyphon, except that the basal joint is less dilated. The hind tibia are shorter than in

most of the species of Scirtes of the same size. The species has quite the facies of the

European Prionocyphon serricornis, but it is very much smaller.

1. Prionoscirtes saltitans, (Lab. XXVI. figg. 23; 23a, antenna; 234,

hind leg.)

Rotundate-elliptic, very convex, shining; rufo-testaceous, the eyes black, the antenne and legs testaceous ;

clothed with fine yellowish pubescence. Head and prothorax sparsely, exceedingly minutely punctate ;

eyes moderately large and not prominent ; antenne about. three-fourths the length of the body ; prothorax

very short and convex, the margins not visible from above; elytra thickly, minutely punctate, the punc-

tuation much more distinct than that of the prothorax; hind tibie slightly bowed inwards and rather

short, about equalling the femora in length, the upper spur about two-thirds the length of the first tarsal

joint, the lower spur small.

Length 23, breadth 1% millim.

Hab. Guatemata, Mirandilla (Champion).

One specimen, probably a male, from the lower slope of the Volcan de Fuego.

ORA.

Ora, Clark, Journ. Ent. ii. p. 885 (1865) (sub Halticide).

This name* is retained for various species which differ from Scirtes as follows :—

Posterior coxe contiguous in front only along the median line, separated posteriorly

by the raised intercoxal process of the abdomen, less abruptly dilated inwards, the

inner portion not forming a subquadrate plate as in Scirtes ; middle coxe contiguous

behind, or separated by a very thin lamina; prothorax and elytra explanate and

acutely margined at the sides. The head is margined at the sides below the eyes, as

in many Scirtes. Clark, who described the tibize as unarmed and did not observe the

form of the cox, referred this genus without hesitation to the Halticidwe, but its true

* Omitted from the Munich Catalogue. ~

ORA. 603

affinities were noticed by Chapuis*. In addition to 0. grayi, Clark, from Brazil, and

O. chevrolati, Clark (=troberti, Guér., nec Horn), from Mexico and Guatemala, and

the various species here described, the genus includes Scyrtes complanatus, Gueér.,

from Brazil, and probably the Cuban Scirtes sexlineatus and S. interruptus, Chevr.,

the eastern &. pictus (Fabr.), and others. In several of the Central-American species

the elytra have intermixed coarser punctures, these bearing longer hairs than the fine

punctures. The male of 0. discotdea, and probably that of the other species also, has

the fifth ventral segment emarginate at the apex. ‘These insects, like many Scirtes,

appear to live upon various species of Saliz.

Form oblong, rather depressed; elytra strongly explanate at the sides, uniformly

punctured, with interrupted, partly confluent, light and dark stripes; body

apparently glabrous above: length 6 milim. . . . . 2. 1 1... ee troberti.

Form broad-oval, depressed; elytra more or less explanate at the sides, with inter-

mixed coarser punctures and (except in pale varieties) distinct markings ; body

pubescent, the elytra with intermixed slightly longer hairs.

Elytra pale testaceous, with a rather narrow oblique black or piceous stripe on the

disc, strongly explanate at the sides, the surface densely, minutely punctate,

with distinct intermixed coarser punctures: length 4-43 millim.. . . . obliqua.

Elytra pale testaceous, with a very broad black or piceous stripe on the dise,

moderately explanate at the sides, the surface more strongly punctate, with

indistinct intermixed coarser punctures: length 44-5 millim.. . . . . . discoidea.

Elytra pale testaceous, with numerous irregular partly coalescent spots, moderately

explanate at the sides, the punctuation as in O. odliqua: length 4-43 millim.. marmorata.

Elytra pitchy-black, with irregular flavous spots along the sides, base, and suture :

length 8 millim. 2. 2 6] ee ee ee ee text

Form oval, rather convex ; elytra moderately explanate at the sides, immaculate, the

punctuation uniform: length 4 millim.. . . . ee ee ee ee. magricornis.

1. Ora troberti. (Tab. XXVI. figg. 24; 244, hind coxe.)

Scyrtes trobertii, Guér. Rev. et Mag. Zool. 1861, p. 545 (nec Horn)’.

Ora chevrolatii, Clark, Journ. Ent. ii. p. 385 (1865) *.

Hab. Mzxico1?; Guatemata, Panzos (Champion).

Our two examples from Panzos agree very nearly with Clark’s type in the British

Museum, and also with Guérin’s description, except that they have the longitudinal

streaks on the elytra more interrupted. In the Panzos specimens the elytra are

brownish-black (instead of brown or reddish-brown), with the suture, base, and sides,

three or four partly coalescent elongate streaks below the base (the second extending

forwards), an angulated postmedian fascia, anda similar ante-apical fascia (both appearing

as if formed by short coalescent streaks), yellow. ‘They have the antenne black, with

* Gen. Col. xi. p. 144, nota.

4H2

604 SERRICORNIA.

the three basal joints testaceous. The upper surface is shining, glabrous, and finely,

moderately closely punctate. The thorax is explanate and acutely margined at the

sides, widest at the base, the sides being a little rounded. ‘The elytra are rather

elongate, acutely margined and explanate at the sides, and compressed laterally below

. the shoulders. The antennal joints 4-10 become gradually shorter outwards. The

femora are smooth and glabrous. The general shape is oboval. ‘The Texan insect

described and figured by Dr. Horn under the name Scirtes troberti (Trans. Am. Ent.

Soc. viii. p. 102, t. 1. fig. 15) belongs to a very different species *. O. troberti (Guér.),

like most of its congeners, lives upon willows; it resembles a species of Adionychis, of

the family Halticide.

2. Ora obliqua. (Tab. XXVI. fig. 25.)

Broad-oval, depressed, rather shining ; head, prothorax, and scutellum black or piceous, the base of the head

and two marks on the disc of the prothorax, as well as the lateral margins, sometimes rufous or rufo-

testaceous; the elytra pale testaceous, each with a long oblique black or piceous streak on the disc

extending to a little beyond the middle; the antennz black or piceous, with the three basal joints testaceous;

the body beneath in great part piceous or brown; the legs piceous or brown, with the tarsi, the apex of

the tibis, and the basal half of the femora testaceous; the upper surface thickly clothed with very fine,

pallid, sericeous pubescence, the elytra also with intermixed longer hairs. Head very minutely punctate ;

antenne moderately long, joints 2 and 3 subequal in length, 4-11 elongate; prothorax short, rapidly

narrowing from the base, explanate and acutely margined at the sides, densely, very minutely punctulate ;

scutellum punctured like the prothorax ; elytra broadly explanate and acutely margined at the sides,

densely, minutely punctate, with distinct intermixed, slightly coarser punctures, and indications of an

impressed line near the suture. Posterior tibie elongate, slightly curved, and dilated externally from a

little below the base to the apex, appearing rounded on their outer edge, the upper spur very long.

Var, Above and beneath and the legs pale testaceous, the hind femora a little darker at the tip, the antenne

coloured as in the type.

Length 4-42, breadth 22-33 millim.

Hab. Mexico, Vera Cruz (Sallé) ; GuateMaua, Panzos (Champion).

Found in numbers by myself upon a species of Salix, on the banks of the River

Polochic, on the Atlantic slope, the typical and pallid forms occurring together. The

variety only is represented in the Sallé collection. This is one of several Central-

American forms allied to the Brazilian O. complanata (Guér.), the description of which

is too vague for the identification of closely allied species. The pallid variety agrees

with it in colour. <A typical example from Panzos is figured.

8. Ora discoidea. (Tab. XXVI. fig. 26.)

Broad-oval, depressed, rather shining; head, prothorax, and scutellum black or piceous, the base of the head

and the margins of the prothorax, as well as the apex of the latter in the centre, often obscure testaceous ;

the elytra pale testaceous, each with a very broad piceous or brownish vitta on the disc extending from a

little below the base to near the apex (leaving a narrow sutural, and a broad marginal and basal stripe of

the ground-colour); the antenne black or piceous, with the three basal joints testaceous; the body

beneath and the legs piceous or brown, the basal half of the femora and the tarsi testaceous; the upper

* The name tewanus is here proposed for the Texan insect.

ORA. 605

surface thickly clothed with very fine, pallid, sericeous pubescence, the elytra also with scattered intermixed

longer hairs. Head very minutely punctate; antenne as in 0. obliqua; prothorax short, rapidly

narrowing from the base, explanate and acutely margined at the sides, minutely punctulate; scutellum

punctured like the prothorax; elytra explanate and acutely margined at the sides, densely, very finely

punctate, with intermixed slightly coarser punctures, and indications of an impressed line near the suture.

3. Fifth ventral segment arcuate-emarginate at the apex.

Var. a. The discoidal vitta of the elytra obliterated or reduced to a narrow streak, the elytra sometimes with

irregularly scattered brownish spots.

Var. 3. Above and beneath, the legs, and antenne testaceous, the head, prothorax, scutellum, and posterior

knees brown or reddish-brown; the elytra as in a.

Length 43-5, breadth 22-34 millim.

Hab. Mexico, Cordova, Vera Cruz (Sallé), Jalapa (Hoge); GuaTEMALa, near the city

(Salvin), Duefias (Champion); Honpuras (Mus. Brit.).

Found in abundance in all its varieties upon a species of Salix at Duefias; also not

uncommonly at Jalapa. In many of the pallid examples the elytra are spotted with

brown, this being due to the irregular distribution of the darker pigment. 0. discoidea

is closely allied to O. obliqua, but differs from it in having the elytra a little less

explanate at the sides (the general shape being rather more elliptic), and not so

minutely punctured, with the intermixed coarser punctures not very distinct. In

O. obliqua the elytral punctuation is very minute, and the intermixed coarser punctures

quite distinct. A specimen from Duefas is figured.

4. Ora marmorata.

Broad-oval, depressed, shining; pale testaceous, the prothorax with indistinct brownish markings, the elytra

with numerous irregular brown spots which are here and there coalescent, the posterior femora suffused

with reddish-brown at the apex; the upper surface thickly clothed with fine pallid pubescence, the elytra

also with intermixed longer hairs. Head, prothorax, and scutellum closely, very minutely punctate;

antennz moderately long and slender, joints 2 and 3 short, equal in length, 4-11 elongate; prothorax

short, rapidly narrowing from the base, explanate and acutely margined at the sides; elytra acutely

margined and slightly explanate at the sides, closely, very minutely punctate, with intermixed slightly

coarser punctures, and indications of an impressed line near the suture.

Var. The elytral markings obliterated.

Length 4-44, breadth 23-8 millim.

Hab. Panama, Volcan de Chiriqui, David (Champion).

Two examples, both somewhat immature. Very near 0. obliqua, but differing from

it in the less explanate margins of the elytra, as well as in colour. The punctuation

of the elytra is equally minute. From 0. discoidea it may be separated by the distinctly

more finely punctured elytra. The elytral markings in the typical form somewhat

resemble those of certain varieties of O. discoidea, but the spots are much more

numerous and partly coalescent.

5. Ora mixta. (Tab. XXVI. fig. 27.)

Broad-oval, short, depressed, rather shining; black or pitchy-black, the sides of the head in front and the

anterior and lateral margins of the prothorax obscure testaceous; the elytra with an oblong humeral

606 SERRICORNIA.

patch (angulated within) and some irregular markings at the sides beyond the middle, at the base, and

along the suture flavous ; the antenne piceous, with the three basal joints testaceous ; the legs piceous,

the tibia, the tarsi, and the base of the femora testaceous; the upper surface clothed with very fine,

pallid, sericeous pubescence, the elytra also with scattered intermixed longer hairs, apparently arising

from small bare spots. Head, prothorax, and scutellum densely, very minutely punctate; antenne

moderately long, joints 2 and 3 short, subequal, 4-11 gradually decreasing in length; prothorax short,

rapidly narrowing from the base, slightly dilated at the sides; elytra broadly explanate and acutely

margined at the sides, densely, minutely punctate, with distinct, scattered, intermixed coarser punctures,

and indications of a fine impressed line near the suture.

Length 3, breadth 2 millim.

Hab. Guatemata, Torola and Paso Antonio (Champion).

Two examples, both from the low country bordering the Pacific Ocean. This peculiar

species approaches 0. obliqua, but it is very much smaller, and the general shape is

more rounded. ‘The elytra have asymmetrical markings; the longer hairs, which are

easily abraded, appear to arise from very small bare spots; the intermixed coarser

punctures are quite distinct. The thorax is less explanate at the sides than in

O. obliqua and its allies.

6. Ora nigricornis.

Oval, rather depressed, shining; fulvo-testaceous, the antennz black, with the three basal joints testaceous ;

legs testaceous, the tarsi infuscate, the posterior femora reddish ; the upper surface finely pubescent. Head,

prothorax, and scutellum thickly, very finely punctate ; antenne moderately long, slender, joint 3 small,

about as long as 2, 4-11 elongate, the outer joints slightly decreasing in length; prothorax slightly

explanate and acutely margined at the sides, very short, rapidly narrowing from the base; elytra

flattened on the disc, slightly explanate and acutely margined at the sides, thickly, finely, uniformly

punctate, the punctuation coarser than that of the prothorax, and with indications of a fine impressed

line near the suture.

Length 4, breadth 24 millim.

Hab. Panama, Bugaba (Champion).

This species agrees with O. discoidea and its allies in the form of the hind coxe and

also in the explanate margins of the elytra ; but differs from them in the more coarsely

punctured elytra, without trace of intermixed coarser impressions. It is smaller,

narrower, and less depressed than O. discoidea. One example, probably quite mature.

SCIRTES.

Scirtes, Illiger, Mag. vi. p. 801 (1807); Guérin, Spec. et Icon. gén. des Anim. Art. livr. i. no. 3,

p. 1 (1843) ; Tournier, Dascillides du Bassin Léman, p. 83; Horn, Trans. Am, Ent. Soc.

vii. p. 101.

The numerous species here referred to Scirtes agree in the following characters :—

Posterior cox quite contiguous along the median line, extending over the intercoxal

process of the abdomen, very abruptly dilated inwards, the inner portion forming a

subquadrate plate; middle coxe separated by a narrow lamina; prothorax and elytra

(except in S. oblongus) narrowly margined. They have the long upper spur of the

SCIRTES. 607

posterior tibie shorter than in the typical species of the genus, the European S. hemi-

spherica (Linn.), in which it is about as long as the first tarsal joint. So far as I have

been able to observe, the Central-American species also differ from S. hemispherica,

as well as from the North-American 8. tidialis, Guér., and S. troberti, Horn (nec

Guér.), in having the sides of the head margined below the eyes. Hitherto, the whole

of the saltatorial Dascillids from all parts of the world have, with two exceptions, been

referred to the one genus, Scirtes, but it is certain that some of them belong to distinct

genera; several, as already noticed, are here separated under the name Ora, Clark.

Sixty-nine species of Scirtes have been described, and many more are now added.

S. suborbiculatus, 8. pilatei, and others are extremely variable in colour. Iam unable

to detect any external sexual characters. |

These insects are found in marshy places, on long grass or on various species of

Salix, and owing to their extreme agility are very difficult to capture.

a. Prothorax arcuately dilated at the sides, narrowed behind; elytra striped

(except in the pale variety); form oblong: length 6 millim. . . . . . odlongus.

5. Prothorax not dilated at the sides, shorter, and forming almost a continuous

outline with the elytra.

a’, Elytra deeply emarginate in front; legs very stout, the hind tibiz bowed

inwards ; form transversely orbicular, very convex ; body black above, the

elytra bluish-violaceous, clothed with cinereous hairs .

6’. Elytra not deeply emarginate in front; legs more slender, the hind tibiae

straighter ; form less convex.

ceruleus.

a’, Form rotundate or rotundate-oval, moderately convex ; pubescence fine

and sparse: length 3-4 millim.

Elytra rather coarsely punctate; body rufo-testaceous, the elytra in

the typical form with more than the apical half black. . . . rotundatus.

6’, Elytra finely and more sparsely punctate ; body brownish, the prothorax

reddish-yellow, paler at the sides, the elytra usually with the sutural,

basal, and lateral margins infuscate .

c/’, Elytra finely, moderately closely punctate ; body black or piceous, ‘the

prothorax with the sides broadly flavous or entirely reddish-yellow . thoracicus.

6”. Form broadly oval or broadly elliptic, moderately convex.

d’’, Antenne stout and moderately long, black, the third joint shorter

than the second; body black, the prothorax and a shoulder-spot on

each elytron rufo-testaceous : length 4 millim.

e’’, Antenne slender, long or moderately long.

a'. Third antennal joint as long as or not much shorter than the

second.

al”.

circumcinctus.

scapularis.

a’. Pubescence rather long and coarse; prothorax narrowing from

the base; elytra moderately closely and not very finely punc-

tate ; body varying in colour from piceous to rufo-testaceous :

length 3-43 millim. . pulater.

608 SERRICORNIA.

B®, Pubescence shorter and finer; elytral punctuation finer.

a’. Elytral punctuation moderately close and fine.

a’. Prothorax somewhat rounded at the sides; body obscure

testaceous, the prothorax yellowish, the elytra with the

base narrowly infuscate: length 4 millim. .

b’. Prothorax narrowing from the base; body brown, the head

and prothorax paler: length 23-3 millim. .

b°. Elytral punctuation dense and minute; body brown, the head

and prothorax paler: length 34 millim. . .

6‘. Third antennal joint exceedingly short, very much shorter than the

second; body black, sparsely and very Bnely pubescent; antennz

pale: length 8 millim.. . . . - oe

f. Antenne rather stout, about as long. as “the body, the third joint

minute; body nigro-piceous, nely pubescent; eyes prominent:

length 24-8 millim. . oe ee - ee - oe ee

g". Antenne rather stout, elongate, piceous, the three basal joints pale,

the third very small; body black, the prothorax reddish-yellow, the

elytra sometimes with a common yellowish median spot: length

4-24 millim. . re er

h’’, Antenne rather stout, moderately long, testaceous (the tip sometimes

infuseate), the third joint longer; body varying in colour from

black to testaceous, the elytra with an oblong common yellowish

median spot (rarely obliterated), the prothorax sometimes entirely

reddish-yellow: length 24-3 millim.

ce’, Form regularly oval, convex.

a’, Prothorax acutely margined at the sides; antenne slender; body

black: length about 3 millim. . . . .

j'. Prothorax very feebly margined at the sides ; ; antennse stonter ; body

brownish, the head and prothorax partly reddish-yellow, the elytra

with the base and apex and a lateral patch black: length 22 millim. .

d”, Form oblong-oval, convex; antenne long and slender; elytra nigro-

piceous, the head and prothorax black, the sides of the latter rufescent :

length 34-32 millim. . . wes

e’’", Form oblong, subparallel, depressed ; antenne long and very slender ;

body rufo- or fusco-testaceous: length 22-3 millim.

f”. Form short-elliptic: length 2-24 millim.

k’’", Prothorax densely, distinctly punctate ; antenne exceedingly slender ;

body testaceous . a a ee

’’, Prothorax more sparsely and more minutely punctate; antenne less

slender; body obscure testaceous or fuscous.

ce’, Elytral punctuation minute. . . .....

d*, Elytral punctuation coarser ; form more rounded

ellipticus.

pulicarius.

tenuicornis.

ater.

longicornis.

collaris.

suborbiculatus.

saltator.

quadrinotatus.

longulus.

angustatus.

puncticollis.

salicis.

scymnoides.

or.

SCIRTES. 609

1. Scirtes oblongus. (Tab. XXVI. figg. 28; 28a, hind coxe.)

Scyrtes oblongus, Guér. Rev. et Mag. Zool. 1861, p. 546°.

Hab. Mexico, Vera Cruz (Sallé), Yucatan (Pilate 1); Guaremana, Panzos (Champion).

In a series of nineteen examples from Panzos, on the River Polochic, one only

belongs to the pallid form described by Guérin. The other specimens may be

described as having black or piceous elytra, each with three or four long oblique

lines on the disc, the second the broadest, and usually extending from the base to

near the apex, and the suture, base, and sides, pale testaceous; the pale lines on the

disc are sometimes obliterated, but their position is generally indicated by lines of |

pallid pubescence. These examples have the antenne black or piceous, except at the

base, the thorax usually more or less infuscate on the disc, the scutellum piceous, and

the legs, the basal half of the femora excepted, suffused with piceous. The entire

upper surface is densely, minutely punctate, and thickly clothed with fine sericeous

pubescence. The antennal joints 4-10 become gradually shorter outwards. J. oblongus

may be readily identified by its elongate shape, and by the rounded and acutely

margined sides of the thorax, the latter widest before the base, appearing narrowed

behind. The single specimen from the Sallé collection belongs to the pallid form. A

well-marked example from Panzos is figured. ‘The insect lives upon willows.

2. Scirtes ceruleus. (Tab. X XVI. fig. 29.)

Transversely orbicular, very convex, shining ; head, prothorax, and scutellum black, the elytra bluish-violaceous,

the body beneath, antenne, and legs testaceous ; the upper surface clothed with short, semierect, rather

coarse, cinereous hairs. Head minutely punctulate, the eves rather prominent; antenne slender, joint 3

very short, the following joints elongate (7-11 broken off); prothorax very short, forming a continuous

outline with the elytra when viewed from above, very minutely punctulate, the sides finely margined and

a little rounded, the anterior and hind angles obtuse; scutellum minutely punctulate; elytra gibbous,

abruptly declivous and very obtuse behind, deeply emarginate in front for the reception of the prothorax,

finely margined, thickly, finely punctate, the epipleurew excessively broad and concave in their anterior

half; legs very stout, comparatively short, the tibie distinctly bicarinate externally, the hind pair strongly

bowed inwards. Posterior cox contiguous, abruptly quadrangularly dilated inwards.

Length 32, breadth 343 millim.

Hab. Panama, Bugaba (Champion).

One female example. This extraordinary insect has entirely the facies of an Azya,

of the family Coccinellide. The pubescence is abraded on the disc of the thorax and

elytra. The puncturing of the head, thorax, and scutellum is only visible under a

strong lens, that of the elytra being much coarser. ‘The legs are unusually stout.

The elytra, when viewed laterally, are sinuous at the sides behind the middle,

appearing arcuately dilated anteriorly.

3. Scirtes rotundatus. (Tab. XXVII. fig. 1.)

Rotundate, convex, shining ; rufo-testaceous, the elytra with about the apical two-thirds black, the antenne

testaceous, with the apical three or four joints infuscate, the legs testaceous, with the posterior femora

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1897. 4T

610 SERRICORNIA.

reddish at the tip; the upper surface rather sparsely clothed with fine decumbent yellowish hairs. Head,

prothorax, and scutellum very finely punctate; antenne long and slender, joint 3 small, shorter than 2,

4-11 very elongate, the outer joints diminishing in length ; prothorax convex, very short, rapidly narrowing

from the base, acutely margined at the sides; elytra rather coarsely, not very closely punctate, acutely

margined at the sides.

Var. a. The elytra with a large common patch at the base (not extending to the scutellum), or the apex, piceous.

Var. GB. The elytra immaculate.

Length 3-34, breadth 24-25 millim.

Hab. Muxico, Atoyac in Vera Cruz (H. H. Smith); Panama, Bugaba and David in

Chiriqui (Champion).

Ten specimens from Chiriqui and one from Mexico, four only (all from Bugaba)

being of the typical form. The unicolorous rufo-testaceous variety has very much

the appearance of a Spheroderma, of the family Halticide. 8S. rotundatus closely

approaches S. thoracicus and S. circumcinctus, but has more coarsely punctured elytra,

the punctuation also being closer than in S. circumcinctus. From S. pilatei in all its

varieties it may be known by the more rotundate shape, and the sparser, finer, and

shorter pubescence. A typical specimen from Bugaba is figured.

4. Scirtes circumcinctus. (Tab. XXVII. fig. 2.)

Rotundate, convex, shining; head black or brown, the prothorax rufo-testaceous, becoming indeterminately

flavous at the sides, the disc in one specimen stained with piceous, the scutellum black or piceous, the

elytra brown, usually with the sutural, basal, and lateral margins black or piceous; the antenne

testaceous, with the three or four terminal joints more or less infuscate; the legs and under surface

brown, the tarsi, and sometimes the tibie also, testaceous; the upper surface sparsely clothed with fine

pallid pubescence. Head, prothorax, and scutellum thickly, minutely punctate; antenne moderately

long, slender, joint 3 small, shorter than 2, 4-11 elongate, the outer joints diminishing in length;

prothorax very short, convex, rapidly narrowing from the base, acutely margined at the sides; elytra

sparsely, finely punctate, the punctuation distinctly coarser than that of the prothorax, acutely and

narrowly margined at the sides.

Length 3-33, breadth 2-23 millim.

Hab. Panama, Bugaba and David (Champion).

Seven specimens, one of which has a piceous mark on the disc of the thorax. The

elytra usually have the sutural, basal, and lateral margins darker than the rest of the

surface. At first sight S. circumcinctus would appear to be nothing more than a

colour-variety of S. thoracicus, but it has the elytra distinctly more sparsely and more

finely punctate.

5. Scirtes thoracicus. (Tab. XXVII. fig. 3.)

Broad-oval, convex, shining; black, the prothorax with the sides broadly flavous, the elytra in one specimen

indeterminately reddish-brown near the suture, the antennz testaceous, with the three or four outer

joints infuscate, the legs piceous or brown, with the tarsi and the anterior and middle tibie testaceous ;

the upper surface clothed with fine pallid pubescence. Head, prothorax, and scutellum thickly, minutely

punctate; antennz rather long and slender, joint 3 small, shorter than 2, 4-11 elongate, the outer joints

diminishing in length; prothorax very short, convex, rapidly narrowing from the base, acutely margined

SCIRTES. 611

at the sides; elytra thickly, finely punctate, the punctuation coarser than that of the prothorax, narrowly

and acutely margined at the sides.

Var. a. Piceous or brown, the sides of the prothorax broadly flavous; the antenne with the apical two or

three joints only infuscate; the legs fusco-testaceous.

Var. 3. Black, the prothorax reddish-yellow, paler at the sides; the antenne brown, with the five basal joints

testaceous.

Length 3-4, breadth 23-22 millim.

Hab. Mexico, Atoyac in Vera Cruz, Teapa in Tabasco (H. H. Smith); GUATEMALA,

Yzabal (Sallé); Panama, Bugaba (Champion), Colon (Janson).

Thirteen examples: seven of the typical form, from Atoyac and Teapa; five of the

var. «, from Panama; and one of the var. 8, from Yzabal. This insect is very like

S. circumcinctus, but it has more coarsely and more closely punctured elytra. It

varies greatly in colour, like S. sudorbiculatus and other species of the genus. The

shorter and finer pubescence and sparser elytral punctuation separate it from S. pilate?.

A specimen from Teapa is figured.

6. Scirtes scapularis. (Tab. XXVII. fig. 4.)

Broadly elliptic, moderately convex, shining; deep black, the prothorax and an oblong humeral patch on each

elytron rufo-testaceous, the antenne black, with the second and third joints obscurely rufescent, the legs

black, with the tips of the tarsi and the tibial spurs testaceous; the upper surface thickly pubescent, the

pubescence rather coarse, partaking of the ground-colour. Head, prothorax, and scutellum somewhat

sparsely, minutely punctate; antenne stout, moderately long, joint 3 small and shorter than 2, 4-11

longer than broad, 4-10 subequal in length ; prothorax convex, very short, rapidly narrowing from the

base ; elytra closely, finely punctate, the punctuation coarser than that of the prothorax, acutely and

narrowly margined at the sides.

Length 4, breadth 23 millim.

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One example. Not closely allied to any of the other species here enumerated, and

easily distinguished by the black body, legs, and antenne and the reddish thorax and

shoulder-spot. From the somewhat similarly-coloured var. a of S. pilatet it may be

separated by its more oblong, less convex shape, the shorter and stouter antenne, the

black limbs and under surface, and finer pubescence. The antennal joints 4-10 are

subequal in length, the insect differing in this respect from most of the other species

of the genus.

7. Scirtes pilatei.

Scyrtes pilatei, Guér. Rev. et Mag. Zool. 1861, p. 545°.

Broadly elliptic, rather convex, shining; varying in colour from piceous to rufo-testaceous, the antennz

testaceous, with the apical one or two joints infuscate, the legs testaceous, with the posterior femora

usually darker ; the upper surface thickly clothed with rather long and coarse decumbent yellowish- or

fulyo-cinereous hairs. Head, prothorax, and scutellum very finely punctate ; antenne long and slender,

joint 3 about as long as 2, 4-11 very elongate, the outer joints diminishing in length ; prothorax convex,

very short, rapidly narrowing from the base, acutely margined at the sides; elytra thickly, finely punctate,

the punctuation coarser than that of the prothorax, narrowly and acutely margined at the sides.

412

612 SERRICORNIA.

Var. a. The head, prothorax, scutellum, and a large humeral patch on each elytron (sometimes extending along

the base to the suture) fulvous, the rest of the elytra black or piceous.

Var. 3. Obscure rufo-testaceous, the elytra with the base and the sides to about the middle, and sometimes

the apical half of the suture, as well as the prothorax in part, infuscate or black.

Length 3-44, breadth 23-3 millim.

Hab. Mexico, Teapa in Tabasco (H. H. Smith), Yucatan (Pilate'); GuaTEMALa,

Las Mercedes, Pantaleon, Zapote, San Gerdénimo (Champion); Nicaragua, Chontales

(Janson); Panama, Bugaba, Volcan de Chiriqui, Caldera, David (Champion).

This appears to be the commonest and most widely distributed species of the genus

in Central America. It is very variable in colour, and also in size. The varieties

occurred both in Guatemala and Panama in company with the type. Some of the

smaller Panama specimens are a little more rotundate in shape, but I cannot separate

them. ‘The elytral pubescence is longer and coarser than in any of the allied forms.

The insect was collected in numbers at Las Mercedes and Bugaba. I apply Guérin’s

name to this species with some hesitation, as it is impossible to identify his insect

from the brief description*. S. fuscus, Chevr., from Cuba, appears to be a closely

allied form.

8. Scirtes ellipticus.

Broadly elliptic, moderately convex, shining; obscure testaceous, the prothorax yellowish, the elytra narrowly

bordered with piceous at the base, the antenne and legs testaceous; the upper surface thickly clothed

with short, decumbent, rather coarse, pallid hairs. Head, prothorax, and scutellum thickly, minutely

punctate; antenne long and slender, joint 3 slightly shorter than 2, 4-8 very elongate (9-11 broken off) ;

prothorax convex, very short, somewhat rounded at the sides, narrowing from the base; elytra closely,

very finely punctate, the punctuation coarser than that of the prothorax, narrowly margined at the sides.

Length 4, breadth 24 millim.

Hab. Guatemata, San Gerénimo (Champion).

One specimen. Very near S. pilatei, but differing from it in the much finer and

closer punctuation of the elytra, the shorter pubescence, the rather more rounded sides

of the thorax, and the somewhat narrower general shape. ‘The elytral punctuation is

coarser and sparser than in S. tenwicornis.

9. Scirtes pulicarius.

Elliptic, moderately convex, shining; brown or pitchy-brown, the suture of the elytra paler, the head

and prothorax testaceous or brownish-testaceous, the prothorax with the sides and base paler in one

specimen, the antenne brown with the basal joints testaceous or entirely testaceous, the legs testaceous ;

thickly clothed with fine pallid pubescence. Head, prothorax, and scutellum thickly, minutely punctate ;

antenne long and very slender, joint 3 short, about as long as 2, 4-11 elongate, gradually decreasing in

length ; prothorax short and convex, narrowing from the base, finely margined at the sides; elytra closely,

very finely punctate, the punctuation coarser than that of the prothorax, narrowly margined at the sides.

Length 23-3, breadth 13-2 millim. |

Hab. GuatEMALA, Mirandilla (Champion); Panama, Bugaba (Champion).

* It would apply almost equally well to S. rotundatus.

SCIRTES. 615

A single example from each locality, the one from Panama being a good deal smaller

and more rotundate than the other, but agreeing with it in the long and slender

antenne. ‘This insect is allied to S. tenwicornis, but may be known from it by the less

densely punctured elytra, sparser pubescence, and rather shorter antenne. From

S. suborbiculatus in all its varieties it differs in the longer and more slender antenne ;

and from S. pilatei by its much smaller size, shorter pubescence, finer punctuation, &c.

A specimen from Guatemala city probably belongs here; it has a common oblong pallid

central spot on the elytra before the middle.

10. Scirtes tenuicornis.

Elliptic, rather broad, moderately convex, slightly shining; head, prothorax, scutellum, and under surface

fusco-testaceous, the elytra fuscous, the antenne with the basal six joints testaceous, the others

infuscate, the legs testaceous; the upper surface thickly clothed with fine pallid sericeous pubescence.

Head, prothorax, and scutellum densely, very minutely punctate; antenne very long and very slender,

joint 3 about as long as 2, 4-11 very elongate, the outer joints diminishing in length; prothorax convex,

very short, rapidly narrowing from the base, finely margined at the sides; elytra densely, minutely

punctate, the punctuation scarcely coarser than that of the prothorax, narrowly and acutely margined

at the sides.

Length 31, breadth 24 millim.

Hab. GuatemMaa, San Gerénimo (Champion).

One example. Similar to S. pilatei in shape, but much smaller, more finely pubescent,

the antenne more slender, and the elytra densely, minutely punctate. In the present

insect the punctuation of the elytra is scarcely coarser than that of the head and thorax,

a character separating S. tenuicornis from most of the allied forms.

11. Scirtes ater.

Elliptic, rather broad, convex, shining; black, the antenn testaceous, with the apical joint slightly infuscate,

the legs piceous, with the knees reddish and the tarsi testaceous; sparsely clothed with very fine fuscous

pubescence. Head, prothorax, and scutellum thickly, minutely punctate; antenne moderately long and

slender, joint 3 very small, much shorter than 2, 4-11 elongate, gradually decreasing in length ; prothorax

short and convex, narrowing from the base, acutely margined at the sides; elytra somewhat thickly, very

finely punctate, the punctuation distinctly coarser than that of the prothorax, narrowly margined at

the sides.

Length 3, breadth 2 millim.

Hab. Panama, Bugaba (Champion).

One specimen. Very like S. saltator; but of less regularly oval shape (less narrowed

in front and behind), the elytra a little more sparsely punctured and with darker

pubescence, the antenne with a much shorter third joint. The rather larger size and

the very differently formed antenne separate it from S. longicornis, and the smaller

size, narrower shape, finer punctuation, very fine and sparse pubescence, &c., from

S. pilater.

614 . SERRICORNIA.

12. Scirtes longicornis.

Elliptic, moderately convex, shining; nigro-piceous, the head and prothorax black, the margins of the latter

rufescent, the antenne piceous or obscure testaceous, with the basal joints testaceous, the legs testaceous,

with the femora partly piceous, the body beneath piceous or brownish ; sparsely clothed with very fine

brownish pubescence. Head, prothorax, and scutellum somewhat thickly, minutely punctate ; head very

broad, the eyes large and rather prominent; antenne nearly as long as the body, not very slender,

joint 3 very minute, scarcely more than half the length of 2, 4-11 very elongate, flattened, and equal in

length; prothorax convex, short, narrowing from the base, sharply margined at the sides; elytra thickly,

finely punctate, the punctuation coarser than that of the prothorax, narrowly margined at the sides.

Length 21-3, breadth 13-14 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Seven examples. This small species may be at once identified by the usually elongate

antenne, these organs being nearly as long as the body: the third joint is very minute,

and the following ones very long and flattened. ‘The specimens show no variation in

colour, except that the antenne and under surface are paler in some of them.

13. Scirtes collaris.

Elliptic or rotundate-elliptic, rather convex, shining; the head varying in colour from black to testaceous, the

prothorax reddish-yellow or flavo-testaceous, in one specimen with a transverse black mark on the dise

(perhaps due to discoloration), the scutellum piceous or black, the elytra black or pitchy-black, the body

beneath piceous, the antennz black or piceous, with the basal three or four joints testaceous, the legs

varying in colour from piceous to testaceous; the elytra clothed with fine brownish pubescence, the head

and prothorax with pallid pubescence. Head, prothorax, and scutellum thickly, very minutely punctate ;

antenne long and rather stout, joint 3 extremely small, much shorter than 2, 4-11 elongate, gradually

decreasing in length; prothorax very short and convex, narrowing from the base, finely margined at the

sides; elytra thickly, finely punctate, the punctuation coarser than that of the prothorax, narrowly

margined at the sides. :

Var. The elytra with a common reddish-yellow sutural stripe, extending from a little below the scutellum to

the apex and narrowing posteriorly.

Length 23-24, breadth 13-13 millim.

Hab. GuatrMata, Cubilguitz, Chiacam, and San Gerénimo in Vera Paz, San Isidro

(Champion); Panama, Volcan de Chiriqui (Champion).

Six specimens of the typical form—three from Vera Paz and three from Chiriqui—

and two of the variety, the latter being from San Isidro. ‘The variety closely resembles

the North-American S. orbiculatus (Fabr.), but differs from it in the much longer and

darker antenne; the elytra are punctured exactly as in that species. In the typical

examples there is no trace of a common central spot on the elytra. From S. ater, which

also has an extremely small third antennal joint, it may be easily known by its smaller

size and less convex shape, and the stouter and blacker antenne, as well as by the

colour of the thorax.

14. Scirtes suborbiculatus. (Tab. XXVII. fig. 5, var.)

Rotundate-elliptic, rather convex, shining, finely pubescent; the head varying in colour from black to

testaceous ; the prothorax yellow or reddish-yellow, usually with four black or piceous spots on the

disc, these sometimes united and forming a broad cruciform patch, and sometimes indistinct or entirely

SCIRTES. | 615

obliterated; the scutellum varying in colour from black to testaceous; the elytra black, piceous, or

brownish, with a common oblong reddish-yellow mark of variable size about the middle, which is some-

times faint or obliterated; the antennx testaceous, slightly infuscate at the tip; the legs testaceous, the

hind femora sometimes partly piceous; the body beneath piceous or brownish. Head, prothorax, and

scutellum thickly, very minutely punctate; antennx moderately long and rather stout, joint 3 very small,

shorter than 2, 4-10 gradually decreasing in length; prothorax very short, narrowing from the base,

finely margined at the sides ; elytra closely, very finely punctate, the punctuation coarser than that of the

prothorax, narrowly margined at the sides.

Var. The elytra with an additional reddish-yellow mark along the suture at the apex. (Fig. 5.)

Length 2,4,-24, breadth 14-13 millim.

Hab. Mexico, Presidio de Mazatlan (Forrer), Guanajuato (Sallé), Atoyac in Vera

Cruz (H. H. Smith); Guatemata, Panzos and San Gerdnimo in Vera Paz, Panajachel,

Paso Antonio, Duefias, Capetillo (Champion) ; Nicaragua, Chontales (Janson); PANAMA,

Volcan de Chiriqui (Champion).

Numerous examples, varying greatly in colour. The variety is from Mazatlan and

Guanajuato. This species is extremely closely allied to the North-American S. orbi-

culatus (Fabr.) (= centralis, Say, and lateralis, Lec.), for a specimen of which we are

indebted to Dr. Horn, only differing therefrom in the denser and finer punctuation of

the elytra; it is equally variable in colour, except that the thorax does not become

wholly piceous. The common central spot on the elytra is sometimes faint or

obliterated. |

15. Scirtes saltator.

Oval, convex, shining; black, the lateral margins of the prothorax testaceous, the antenne testaceous, infuscate

at the tip, the legs piceous, with the tarsi and the four front tibize testaceous, the knees reddish ; sparsely

clothed with very fine fulvo-cinereous pubescence. Head, prothorax, and scutellum thickly, minutely

punctate ; antenne moderately long and slender, joint 3 small, about as long as 2, 4-11 elongate,

gradually decreasing in length; prothorax short and convex, narrowing from the base, acutely margined

at the sides; elytra thickly, very finely punctate, the punctuation a little coarser than that of the

prothorax, narrowly margined at the sides.

Length 3,,, breadth 2 millim.

Hab. GUATEMALA, Panzos (Champion). _

One specimen. This*Species is of regularly oval shape, considerably more narrowed

in front and behind than the similarly-coloured S. longicornis, from which it may be

easily separated by the very much shorter and slender antennz, with longer third joint ;

it is also larger and more convex, and has smaller and less prominent eyes. ‘The general

shape is very like that of various Psylliodes, of the family Halticide.

16. Seirtes quadrinotatus. (Tab. XXVIL. fig. 6.)

Oval, convex, shining; head reddish-yellow, with the base black; the prothorax reddish-yellow, with a patch

on the middle of the disc, extending to the anterior margin, and connected laterally with a spot opposite

the eyes, brown; the scutellum piceous, paler at the apex; the elytra brownish-testaceous, with the

base and apex narrowly, and a rather large lateral patch about the middle, black ; the antenne piceous,

with the basal five joints testaceous; the legs testaceous, with the tarsi slightly infuscate; the body

616 SERRICORNIA.

beneath piceous, the abdomen paler; the upper surface clothed with fine pallid pubescence. Head,

prothorax, and scutellum thickly, minutely pun ctate; antenne moderately long, not very slender, joint 3

small, scarcely as long as 2, 4-11 rather elongate, gradually decreasing in length; prothorax convex,

short, narrowing from the base, finely margined at the sides; elytra thickly, finely punctate, the punctua-

tion a little coarser than that of the prothorax, narrowly margined at the sides.

Length 22, breadth 13 millim.

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

One specimen. This insect is of the same general shape as 8. saltator; but it isa

little shorter and smaller, the antenne are less elongate and not so slender, and the

sides of the thorax are much more feebly margined. ‘These differences preclude

the possibility of its being a colour-variety of that species. The elytra appear to

have a reddish-yellow spot a little below the humeri, immediately in front of the

lateral black patch.

17. Scirtes longulus.

Oblong-oval, convex, shining ; nigro-piceous, the head and prothorax black, the margins of the latter rufescent,

the antenns with the basal 4-6 joints testaceous, the others black or brown, the legs testaceous, with the

femora piceous, except at the apex; the upper surface clothed with short, fine, decumbent, fulvo-cinereous

hairs. Head, prothorax, and scutellum sparsely, minutely punctate; antenne long and slender, joint 3 as

long as 2, 4-11 very elongate, the outer joints diminishing in length; prothorax very short, convex,

narrowing from the base, sharply margined at the sides; elytra rather elongate, thickly, finely punctate,

the punctuation much coarser than that of the prothorax, narrowly margined at the sides.

Length 33-38%, breadth 2 millim.

Hab. Guatemaua, San Geronimo (Champion).

Three specimens. The only other Central-American species nearly allied to this is

S. angustatus, from which the present insect may be distinguished by its more convex

shape, larger size, and coarser punctuation, as well as by its darker colour. It is much

narrower and more oblong than S. pilatei, &c.

18. Scirtes angustatus.

Oblong, subparallel, narrow, depressed, shining; obscure rufo- or fusco-testaceous, the elytra a little darker

than the head and prothorax, the antenne and legs entirely testaceous; thickly clothed with fine pallid

pubescence. Head, prothorax, and scutellum somewhat closely, extremely minutely punctate; antenne

long and very slender, joint 3 as long as 2, 4—11 very elongate, the outer joints decreasing in length ;

prothorax convex, short, feebly rounded and acutely margined at the sides, narrowing from the base ;

elytra long, flattened or transversely depressed on the disc a little below the base, very closely, minutely

punctate, the punctuation coarser than that of the prothorax, narrowly margined at the sides; upper

spur of the posterior tibie barely half the length of the first tarsal joint.

Length 23-3, breadth 13-1} millim. .

Hab, Panama, Caldera and David in Chiriqui (Champion).

Three specimens. Differs from all our other species in its narrow, depressed,

subparallel shape, the insect having very much the facies of a small Cyphon. ‘The

upper spur of the hind tibie is shorter than usual.

SCIRTES. 617

19. Scirtes puncticollis.

Elliptic, short, moderately convex, shining, testaceous, thickly and finely pubescent. Head, prothorax, and

scutellum densely, minutely punctate; antenne long and exceedingly slender, joints 2 and 3 subequal,

4-11 elongate, gradually decreasing in length ; prothorax very short and convex, narrowing from the base,

acutely margined at the sides; elytra closely, minutely punctate, the punctuation a little sparser and more

_ distinct than that of the prothorax, narrowly margined at the sides.

Length 2-23, breadth 13-13 millim.

- Hab. Guaremaa, El Tumbador (Champion); Panama, Bugaba, Volcan de Chiriqui

(Champion).

One specimen from each locality. The description is taken from the Bugaba

example, the others being in a bad state of preservation. This very small species

resembles §. salicis; but it is more oval in shape, the antenne are longer and much

more slender, and the thorax is more distinctly punctured. The three specimens

agree in this last-mentioned character. The dense, distinct punctuation of the thorax

gives it a dull appearance.

20. Scirtes salicis.

Elliptic, rather narrow, shining; fusco- or obscure rufo-testaceous, the head and prothorax sometimes a little

paler than the elytra, the legs and antenne testaceous, the basal joints of the latter paler; thickly clothed

with fine pallid pubescence. Head, prothorax, and elytra thickly, very minutely punctate; antenne

moderately long and slender, joint 3 small, a little shorter than 2, 4-11 rather elongate, gradually

decreasing in length; prothorax short and convex, narrowing from the base, finely margined at the sides ;

elytra thickly, minutely punctate, the punctuation a little coarser than that of the prothorax, narrowly

margined at the sides; upper spur of the posterior tibie rather more than half the length of the first

tarsal joint.

Length 2-2;1,, breadth 13-1} millim.

Had. Guatumana, Panzos (Champion, Conradt).

Found in numbers on willows on the banks of the River Polochic. This is one of

the smallest and most obscure of the Central-American species of the genus. It is

allied to S. angustatus, but is very much smaller and less elongate. ‘The insect has

entirely the aspect of a very small Cyphon.

21. Scirtes scymnoides.

Elliptic, short, rather convex, shining; rufo-testaceous, or fuscous with the basal and apical margins of the

prothorax and the scutellum reddish, the antennz and legs testaceous; thickly clothed with fine pallid

pubescence. Head, prothorax, and scutellum very minutely punctate; antenne moderately long and

slender, joint 3 small, about as long as 2, the others elongate; prothorax very short and convex, narrowing

from the base, finely margined at the sides; elytra thickly, finely punctate, the punctuation much coarser

than that of the protharax, narrowly margined at the sides; upper spur of the posterior tibizw about half

the length of the first tarsal joint.

Length 2, breadth 13-12 millim.

Hab. Panama, Bugaba (Champion).

Two examples. Very like S. salicis, but shorter and more convex, the elytra not so

finely punctured, the punctuation being much coarser than that of the thorax. The

insect resembles a Scymnus, of the family Coccinellide.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, March 1897. 4K

618 SERRICORNIA.

CYPHON.

Cyphon, Paykull, Fauna Suecica, ii. p. 117 (1799); Jacquelin Duval, Gen. Col. Europ. ii. p. 151;

Tournier, Dascillides du Bassin Lémaa, p. 48 ; Horn, Trans. Am. Ent. Soe. viii. p. 105.

A very widely distributed genus, both in the northern and southern hemispheres,

being particularly numerous in species in New Zealand, but apparently poorly repre-

sented within the tropics. Several of the Central- American forms have the elytra

foveate or impressed in the females and normal in the males. These insects are found

upon low plants in marshy places.

a. Antenne with joint 3 very small, much shorter than 2 ; head much narrower

than the prothorax, the eyes rounded; elytra usually with more or less

distinct raised lines on the disc or at the sides, at least in the female, and

with depressions or foveze, and also more or less truncate at the apex, in

this sex ; body elongate, oblong-oval, or elliptic (?), oval (3).

a’. Prothorax distinctly explanate at the sides; each elytron ( ¢) with a very

deep pyriform impression at the apex . . . .

b’. Prothorax not or very slightly explanate at the sides.

a’, Body elongate ( ? ): (¢ unknown).

a’, Each elytron (@) with two deep foveee—one at the base and the

other at the apex . . 2. 1 we 6 ew ew ee ee

6’, Each elytron (¢) with a single deep fovea at the apex .

b’’, Body elliptic (?).

ce’, Antenne slender: (¢ unknown).

a‘, Each elytron (¢) with two large shallow depressions—one at the

base and the other at one-third from the apex; the apex not

abruptly truncate . . re er

b*, Each elytron ( ¢) with two depressions—one at the base, foveiform

and rather deep, the other large and shallow, at one-third from

the apex; the apex abruptly truncate - 2 oe

d’’, Antenne stouter: (body oval, ¢) (@ unknown). . . ... .

6. Antenne with joints 2 and 3 subequal in length, or 3 very little shorter

than 2; head much narrower than the prothorax, the eyes rounded ; elytra

without raised lines or impressions.

c’. Elytral punctuation fine: colour variable ; antennz more or less infuscate,

at least at the tip . cos we ee te le

Elytral punctuation coarser: colour uniform reddish-ochraceous ; antenne

entirely testaceous rr . see

c. Antenne with joint 3 elongate, much longer than 2; head nearly as wide as

the prothorax, the eyes very large and oval .

1. Cyphon bifoveolatus. (Tab. XXVII. fig. 7, elytron, 2 .)

bifoveolatus.

quadrifoveolaius.

parallelus.

impressipennis.

truncatus.

atratus*.

variabilis.

guatemalensis.

ampliceps.

. Oblong-oval, depressed, shining, finely pubescent ; nigro-piceous or piceous, the front of the head and the

lateral margins of the prothorax testaceous, the legs and antenne testaceous, the latter sometimes infus-

* Perhaps wrongly placed here, the female being unknown.

CYPHON, 619

cate at the tip, the body beneath reddish-brown. Head moderately broad, thickly, very minutely

punctate, the eyes rounded and rather small; antenne long and slender, more than half the length of

the body, joint 3 small, shorter than 2, the other joints elongate. Prothorax very short and broad,

moderately convex, the sides gradually converging forwards, distinctly explanate, and acutely margined ;

the surface punctured like that of the head. Elytra rather elongate, somewhat parallel in their basal

half, flattened on the disc, the humeri rounded, the apices obliquely truncate; closely, very finely punc-

tate, the punctuation a little coarser than that of the prothorax, with three faint raised lines—two on

the disc, oblique, and one at the sides ; each elytron with a very deep, large, oblique, pyriform impression

on the inner part of the disc immediately before the apex, the impressions extending to the suture, with

their narrow ends forwards.

3. Oval, rather convex; the elytra without impressions near the apex, a little flattened on the disc towards

the base, the raised lines on the dise very faint or obliterated, the apices rounded.

Length 23-24, breadth 12-13 millim.

Hab. Guatemata, San Isidro (Champion); Panama, Caldera, David and Tolé in

Chiriqui (Champion).

Eleven females and four males, all but one, a male, from Chiriqui.

The males are very dissimilar from the females, but, as they were obtained in

company at David, there can be no doubt that they belong to one species. The

genitalia of both sexes have been examined. The deep ante-apical fove of the elytra

in the female extend obliquely forwards, and are pyriform in shape, their narrow ends

meeting at the suture. The margins of the thorax are explanate. The sculpture of

the apices of the elytra is very like that of the males of various species of Malachius.

The localities for this insect are all on the Pacific slope, and in the “ tierra caliente.”

2. Cyphon quadrifoveolatus. (Tab. XXVII. fig. 8, elytron, 2.)

@ . Elongate, narrow, subparallel, depressed, shining, finely pubescent; piceous, the legs and antenne

testaceous, the latter slightly infuscate at the tip. Head moderately wide, closely, minutely punctate,

the eyes small and rounded; antenne about half the length of the body, joint 3 very small, much shorter

than 2, 4 elongate, longer than 5, the others longer than broad. Prothorax very short and broad,

moderately convex, the sides gradually converging forwards and sharply margined; the surface closely,

distinctly punctate. Elytra rather elongate, subparallel in their basal half, flattened on the disc, the

margins not visible from above, the humeri rounded, the apices obliquely truncate, the disc with indi-

cations of one or two raised lines; the surface closely, very finely punctate, the punctuation a little

coarser than that of the prothorax ; each elytron with a very deep, large, oblique, oval impression at the

base within, and a very deep, large, round fovea on the inner part of the disc immediately before the

apex, the fover extending to the suture.

Length 2-22, breadth 1-12 millim.

Hab. Mexico, Cuernavaca in Morelos (H. H. Smith); Guatemata, San Gerdnimo

(Champion).

Two female examples of this peculiar insect have been obtained. It approaches

C. impressus, Lec., from Florida. The following is an allied form.

3. Cyphon parallelus. (Tab. XXVII. fig. 9, elytron, ¢.)

2. Elongate, narrow, subparallel, depressed, shining, finely pubescent ; piceo-testaceous, the legs and antenne

testaceous, the latter infuscate at the tip. Head moderately wide, closely, minutely punctate, the eyes

rounded and very small; antenne moderately slender, about half the length of the body, joint 3 very

4K2

620 SERRICORNIA.

small, much shorter than 2, 4 elongate, longer than 5, 5-10 decreasing in length. Prothorax very

short, rather convex, the sides a little rounded and converging in front; the surface closely, minutely

punctate. lytra rather elongate, subparallel in their basal half, the apices obliquely truncate; the

surface closely, very finely punctate, the punctuation a little coarser than that of the prothorax; each

elytron with a very deep, large, round fovea adjoining the suture immediately before the apex.

Length 27, breadth 1 millim.

Hab. Guatemaa, San Gerénimo (Champion).

One immature example. This insect would appear, at first sight, to be the male of

C. quadrifoveolatus, it having been found at the same locality; but the form of the

genitalia proves it to be a female. C. parallelus differs from the female of that species

in the complete obliteration of the basal impressions on the elytra, as well as in its

more parallel shape, smaller eyes, and more convex thorax.

4. Cyphon impressipennis. (Tab. XXVII. fig. 10, elytron, ¢ .)

9. Elliptic, rather narrow, feebly convex, shining, finely pubescent; piceous, the elytra paler towards the

base and suture, the front of the head, the antenne, and legs testaceous. Head moderately broad,

sparsely, minutely punctate, the eyes rounded and rather small; antenne long and slender, joint 3 small,

shorter than 2, the following joints elongate. Prothorax very short, moderately convex, the sides slightly

explanate, rounded, and converging forwards; the surface sparsely, very minutely punctate. Llytra

moderately long, a little narrowed in front, obliquely truncate at the apex; the surface closely, very

tinely punctate, with a raised line at the sides; each elytron with a large, oval, slightly oblique,

depressed space at the base within, and a large oblong-oval depressed space adjoining the suture at

about one-third from the apex, densely, rugulosely punctate.

Length 2-21, breadth 11-14 millim.

Had. Guatemata, San Isidro (Champion); Panama, Caldera in Chiriqui (Champion).

One female from each locality, both in a bad state of preservation. This insect is

allied to C. truncatus, but it is less depressed; the thorax is broader and more dilated

at the sides; and the elytra are less abruptly truncate at the apex, with the basal

depressions very much larger and shallower. Both the localities are on the Pacific

slope, in the “ tierra caliente.”

5. Cyphon truncatus. (Tab. XXVII. fig. 11, elytron, 2.)

legs testaceous. Head moderately broad, sparsely, minutely punctate, the eyes rounded and rather

small; antenne slender, joint 3 small, shorter than 2, the other joints much longer than broad. Pro-

thorax very short, moderately convex, the sides a little rounded and gradually converging forwards; the

surface minutely, somewhat sparsely punctate. lytra rather elongate, subparallel in their basal half,

flattened on the disc, the humeri rounded, the apices abruptly and somewhat obliquely truncate; the

surface closely, very finely punctate, the disc with indications of two raised lines; each elytron with a

small, oblique, rather deep, oval depression at the base within and a large, somewhat oval, depressed space

on the inner part of the disc at about one-third from the apex, the depressions densely, rugulosely punc-

tured and opaque, the posterior one extending inwards to the suture.

Length 2, breadth 54, millim.

Hab. GuatEmaua, Cahabon in Vera Paz (Champion).

One female specimen, in a bad state of preservation. In this insect the elytra have

.CYPHON, 621

each an oval depression at the base, as in the female of C. quadrifoveolatus, but the

depression is smaller, shallower, and more rugose than in that species; the post-

median depressed space is placed at about one-third from the apex, replacing the

apical fovea of C. guadrifoveolatus. The elytra are broadly and abruptly truncate at

the apex.

6. Cyphon atratus.

$. Gval, rather convex, shining, finely pubescent ; black or pitchy-black, the front of the head, the legs, and

antenne testaceous, the latter infuscate at the tip. Head moderately broad, sparsely, very minutely

punctate, the eyes rounded and rather large; antenne a little more than half the length of the body, not

very slender, joint 3 very small, narrower and much shorter than 2, 4-10 gradually decreasing in length.

Prothorax short and convex, narrowed in front, the sides a little rounded, the surface sparsely, very

minutely punctate. Elytra very finely, closely punctate, the punctuation becoming still finer on the

anterior part of the disc ; in one specimen with indications of two faint oblique raised lines on the disc.

Length 14-23, breadth 14-11 millim.

Hab. Mrxico, Cordova (Hoge), Atoyac and Teapa (H. H. Smith); Guatemaua, San

Gerénimo, San Isidro (Champion); Nicaragua, Chontales (Janson).

Eight examples, differing a little ¢nter se, seven of which are certainly, and the other

probably, males. These specimens cannot be referred to any of the species described

here from females only. C. atratus approaches C. impressipennis, but has stouter

antennez. Compared with males of C. difoveolatus, it has these organs less elongate.

The female probably has the elytra formed as in one or the other of the allied forms.

The North-American C. odscurus (Guér.) is probably a near ally of C. atratus, but it is

considerably larger.

7. Cyphon variabilis.

Cantharis variabilis, Thunb. Mus. Upsal. iv. p. 54 (1787) °.

Elodes variabilis, Guér. Spec. et Icon. gén. des Anim. Art. livr. ili. no. 9, p. 4, tab. figg. 12, 13%.

Cyphon variabilis, Horn, Trans. Am. Ent. Soc. viii. p. 108* °.

Oval, moderately convex, shining, finely pubescent; variable in colour—rufo- or fusco-testaceous, the head

and elytra sometimes suffused with piceous, the latter usually with a large yellowish patch at the apex,

and in one specimen with a broad scutellar patch, a large patch at the sides, and a common oblong mark

beyond the middie piceous ; the legs and antenne testaceous, the latter becoming more or less infuscate

outwards, sometimes piceous, with the exception of the three basal joints. Head moderately broad,

closely, very distinctly punctate, the eyes rounded and rather small; antennse rather more than half the

length of the body, joint 3 nearly or quite as long as 2, 4 elongate, 5-10 much shorter than 4, slightly

decreasing in length. Prothorax short and convex, narrowing from the base, a little rounded at the apex

in the middle, thickly minutely punctate, the punctuation becoming denser at the sides. Elytra thickly,

finely, uniformly punctate, without trace of raised lines,

Length 23-3, breadth 17-14 millim. (d 2.)

Hab. Norta America’, Hudson’s Bay region to Florida and Texas%, and also in

Vancouver I.°—Mexico, Mexico city, Cerro de Plumas (Hége); Guatemana, Coban

and San Gerénimo in Vera Paz, Duefas, Champerico (Champion).—Europrx ! 2,

* For the rest of the American synonymy, see Horn (loc. cit.),

622 SERRICORNIA.

I am unable to find any tangible character by which to separate the Central-

American specimens, one of which was found in a mangrove-swamp on the sea-coast

and others in the mountains, from the very widely distributed C. variabilis. Compared

with European examples they are (with one exception, a female) considerably smaller

and less elongate, but agree in other respects. It is advisable, however, to give a

description of the Mexican and Guatemalan specimens. No less than six North-

American species appear to have been described upon varieties of C. variabilis.

8. Cyphon guatemalensis.

Elliptic, moderately convex, shining ; reddish-ochraceous, the eyes black, the antenne and legs entirely testa-

ceous; thickly clothed with rather long pallid pubescence. Head moderately broad, very minutely

punctate, the eyes large and rounded; antenne not very slender, rather more than half the length of the

body, joints 2 and 3 equal in length, 4-10 moderately long, subequal, 11 much longer than 10, Pro-

thorax short and convex, a little rounded at the apex in the middle, the sides converging from the base ;

the surface very minutely punctate. Elytra thickly, rather coarsely punctate, without trace of raised

lines.

Length 21, breadth 13 millim. (¢ 2.)

Hab. GuatTEeMALA, Senahu in Vera Paz, Torola (Champion).

Two females and one male. This insect closely resembles the European C. pallidulus,

Boh.; but it has differently formed antennae, larger eyes, a smoother head and thorax,

and more coarsely punctured elytra. ‘The last-mentioned character separates it from

the other Central-American species. The head and thorax are distinctly more sparsely

punctured in the male than in the female. The elytral punctuation is uniform in

both sexes.

9. Cyphon ampliceps.

Q. Elliptic, moderately convex, shining, finely pubescent ; rufo-testaceous or piceous, the antenne and legs

testaceous. Head very broad, nearly as wide as the prothorax, very minutely, sparsely punctate, the

eyes oval, large, and rather prominent; antenne long, more than half the length of the body, joint 1

exceedingly stout, 2 oval, moderately stout, 3 elongate, slender, longer than 2 or 4, 4-10 decreasing in

length, 11 oval, much longer than 10. Prothorax short and convex, a little rounded at the apex in the

middle, the sides slightly rounded and converging anteriorly ; the surface sparsely, very minutely punc-

tate. Elytra flattened on the dise towards the base, thickly, finely punctate, the punctuation becoming

coarser towards the sides and apex, with indications of two very faint raised lines on the disc, the apices

conjointly rounded.

Length 13-2, breadth 1,4,-17 millim.

Hab. Guatemata, San Gerdnimo (Champion); Panama, Volcan de Chiriqui, Pefia

Blanca (Champion).

Differs from all the other Central-American species in the unusually broad head

(this being very little narrower than the thorax), the large, oval, rather prominent eyes,

and the elongate third joint of the antenne. Three specimens: the one from the

Volcan de Chiriqui is in a good state of preservation, the others being discoloured and

broken.

HAPLOGLOSSA. 628

Subfam. PTILZODACTY LIN.

Group HAPLOGLOSSINI.

HAPLOGLOSSA.

Aploglossa, Guérin, Spec. et Icon. des Anim. Art. livr. viii. no. 33, p. 1, tab. (1849) ; Lacordaire,

Gen. Col. iv. p. 278 (nec Kraatz).

Haploglossa, Gemminger & Harold, Cat. vi. p. 1623.

The characters of this Tropical-American genus are given at considerable length by

Guérin, but he did not notice the peculiar form of the mandibles, and nothing is said

about the sterna. The following is supplemental to his description :—Mandibles

armed on the inner side at the middle with two long, curved, slender hooks or teeth,

and with a short tooth above and beneath before the apex; prosternum rather short

and horizontal before the anterior coxe, and produced between them into a very narrow

lamella, which is received by a fine notch in the mesosternum, the prosternal process

not raised ; anterior coxz subconical, strongly exserted, and with a moderately large

trochantin ; middle cox very narrowly separated, with a small trochantin ; posterior

coxe narrowly separated, the coxal plates abruptly dilated inwards, but leaving the

trochanters exposed, becoming exceedingly narrow outwards; prothorax margined at

the sides behind.

The difference in the form of the fifth ventral segment is sexual, and not specific,

as supposed by Guerin,

These insects are found upon bushes in damp places in the forest. One of them is

very variable in colour, especially in the female sex.

Prothorax shining, rather sparsely punctured on the disc, subangularly dilated at the

sides towards the base. ww we we ee ee ee sallei.

Prothorax feebly shining, densely punctured throughout, abruptly and acutely dilated

at the sides towards the base.

Body moderately broad ; fifth ventral segment deeply emarginate ia the male . . collaris.

Body narrow; fifth ventral segment feebly emarginate in the male. . . . . . angustata.

1. Haploglossa salleei. |

3. Aploglossa sallei, Guér. Spec. et Icon. des Anim. Art. livr. vill. no. 33, p. 2, tab. figg. 1-7".

9. Aploglossa marginata, Guér. loc. cit. p. 2”.

Hab. Mexico, Ventanas in Durango (Hége), Juquila and Panistlahuaca in Oaxaca

(Sallé).—VENEZUELA, Caracas ! 2,

The seven specimens from Mexico before me—one from Durango and six from

Oaxaca, including both sexes—agree very nearly with Guérin’s descriptions, which are

taken from male and female respectively, H. marginata being based upon a varietal

624 SERRICORNIA.

form of the female, of which we have a very similar specimen from Oaxaca. The

Mexican examples, five of which are from Panistlahuaca, vary greatly in colour; the

varieties may be thus described :—

a. Black, the prothorax with the basal and apical margins sometimes partly reddish; the

trochanters, the tips of the tarsi and of the coxe and the base of the femora, more or less

testaceous. (dj ?.)—Mexico, Venezuela.

8. Black, the prothorax with a more or less distinct large reddish patch on either side at the base ;

the legs asin a. (3 .)—Mexico.

y. Black, the prothorax with the sides broadly flavo-testaceous ; the cox, trochanters, and femora

(except at the tip in one example), the tips of the tarsi, and sometimes the metasternum also,

flavo-testaceous. (¢ 2 .)—Mexico. ;

8. Black, the prothorax, scutellum, coxe,trochanters, and metasternum, the base of the tibiz, the tips

of the tarsi, and some spots at the sides of the abdomen, reddish-testaceous. (.)—-Mexico.

e. Black, the prothorax with the sides very broadly rufo-testaceous, the elytra with the suture and

lateral margins (and sometimes the base also) testaceous; the trochanters, the tips of the

coxee and of the tarsi, the base of the femora and sometimes that of the tibiz also, testaceous.

(2 .)—Mexico, Venezuela.

The males have the antenne exceedingly elongate (fully two-thirds the length of the

body), and the fifth ventral segment deeply triangularly emarginate at the apex. In

the females the antenne are considerably shorter, and the fifth ventral segment is not

emarginate. . sallwi differs from the two other species of the genus in the more

sparsely punctured and more shining thorax. The elytral sculpture—described as

finely shagreened by Guérin—consists of fine, irregular, confluent punctures, the inter-

spaces between which appear to be transversely or obliquely raised.

2. Haploglossa collaris. (Tab. XXVII. figg. 12, ¢; 12a, mandible.)

9. Aplogiossa collaris, Guér. Spec. et Icon. des Anim. Art. livr. vill. no. 33, p. 3°.

Hab. Mexico, Toxpam, Juquila (Sallé); Guatemata, Yzabal (Sallé'), San Juan and

San Gerénimo in Vera Paz, Zapote (Champion); Panama, Volcan de Chiriqui (Champion).

Found in plenty by myself at San Juan, in the Polochic valley, on the Atlantic

slope. #. collaris is closely allied to H. sallei, but less variable in colour, and

differs from it in the more densely punctured, less shining thorax, the sides of which

are more acutely dilated before the base. The antenne in the males are about two-

thirds, and in the females one-half, the length of the body. The thorax is more or less

angularly dilated at the sides at about the basal third, and strongly narrowed behind,

as well as in front. ‘The elytra, as in both the allied species, sometimes have the suture

and sides cinereo-pubescent, instead of being entirely fusco-pubescent as in the type.

The fifth ventral segment is deeply triangularly emarginate at the apex. In the single

(female) example from Juquila, which is somewhat doubtfully referred to HZ. collaris, the

HAPLOGLOSSA. 625

front of the head and the disc of the thorax is rufous, and the usual median vitta of

the latter is reduced to a spot in front and another behind. A specimen from San

Juan is figured.

3. Haploglossa angustata.

Elongate, narrow, subparallel, feebly shining ; black or brownish-black, the mandibles, the sides of the pro-

thorax to a greater or less extent (in one specimen leaying only a narrow black median vitta), and

sometimes the lateral margins of the elytra also, testaceous or flavo-testaceous; the antenne entirely

black ; the legs obscure testaceous, sometimes partly infuscate ; thickly pubescent, the pubescence on the

upper surface fuscous, paler on the sides of the prothorax, and sometimes cinereous along the suture and

lateral margins of the elytra, that on the under surface cinereous. Head dull, very densely, minutely

punctate, the eyes prominent; antenne in the male nearly two-thirds, in the female about half, the

length of the body, moderately serrate from the third joint. Prothorax transverse, angularly dilated at

the sides at about the basal third, rapidly and obliquely narrowing thence to the apex, and also narrowed

behind; very densely, minutely punctate. Elytra elongate, subparallel in their basal half, very densely,

rugulosely punctate, with indications of faintly impressed longitudinal lines. Fifth ventral segment

feebly triangularly emarginate at the apex in the male, entire in the female.

Length 44-64, breadth 14-2 millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui, Caldera (Champion).

Two males and two females, one of the latter having the lateral margins of the

elytra, and the thorax in great part, testaceous. This insect is narrower than

H. collaris, with more feebly serrate antennee, the fifth ventral segment in the male

feebly emarginate, &c. The males are considerably smaller than the females. The

thorax, as in H. collaris, is very densely punctured.

Since the publication of my remarks on this genus (anted, p. 623), an additional

species has been detected in the collections under examination :—

4. Haploglossa ferruginea.

Elongate, parallel, moderately shining; fusco-ferruginous, the base of the head, the labrum, eyes, and antenna,

and the abdomen in great part, black, the legs testaceous; thickly clothed with fine decumbent pubescence,

the upper surface with long semi-erect hairs intermixed, the pubescence brownish on the elytra, and

yellowish-cinereous on the other parts of the body. Head densely, rugulosely punctured, the eyes

prominent; antennz elongate, serrate, moderately stout. Prothorax transverse, feebly subangularly

dilated at the sides a little before the base (appearing slightly constricted behind), and rapidly narrowing

thence to the apex; the surface closely, minutely punctate. Elytra much broader than, and five times

the length of, the prothorax, parallel to beyond the middle; the surface densely rugulosely punctate, and

with indications of faintly impressed longitudinal lines. —

Length 72, breadth 2? millim. ( 9.)

Hab. Guaremaa, San Gerénimo (Champion).

One specimen. Allied to H. collaris, but larger and differently coloured, the antenne

less dilated than in the female of that species, the thorax feebly subangularly dilated a

little before the base (at about the basal third in H. collaris), the elytra relatively longer,

smoother, and more shining, the legs testaceous.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1897. 4L

626 SERRICORNIA.

TELON.

Head short, not produced in front, in repose resting upon the prosternum and invisible from above, sunk into

the prothorax up to the eyes, the latter very large, rounded, and prominent ; labrum very broad, short,

prominent; mandibles acute, short, stout, curved, projecting beyond the labrum, armed with a sharp

tooth on the upperside some distance before the apex; mentum broad, strongly transverse, narrowed in

front; ligula in the form of two long tapering lobes; maxillary palpi very stout, the apical joint subsecu-

riform ; labial palpi long and stout, the second joint elongate, the third joint subsecuriform ; outer lobe

of the maxille divided into two, the outer portion long and tapering, the inner portion short, both being

ciliate, the inner lobe rather slender ; antenne with joint 1 stout, 2 very small, the other joints long and

flattened, 3-10 very broadly and obliquely dilated within, with their inner apical angles obtuse; pro-

thorax completely margined at the sides, semicircular, transversely swollen in front; scutellum trans-

versely cordate ; prosternum extremely short and vertical before the cox, and produced between them

into a thin lamella, which is raised almost to the level of the cox, hooked at the tip, and received into a

deep notch in the mesosternum; anterior coxe oval, with large trochantin; middle coxe narrowly

separated, with small trochantin; posterior coxe separated by a narrow intercoxal process, the coxal

plates moderately dilated inwards; legs stout, the tibial spurs small; tarsi shorter than the tibia, the

basal joint about as long as the second and third united, the third joint broadly dilated, excavate above,

and extending to some distance beneath the fifth, its lower surface velvety-pubescent, the fourth joint

very small, the claws feebly dilated towards the base; sixth ventral segment visible.

The above characters are taken from a single species of large size from Panama.

This insect, which has very much the facies of a Lampyrid, is nearest allied to

Cladotoma, Guér., a genus containing three Tropical-American species; but differs

from it in the bilobate ligula, the bilobed outer portion of the maxille *, the shorter,

subsecuriform apical joint of both palpi, &c. The antenne might be described as

broadly lamellate. The form of the tarsi agrees with that of the Ptilodactylini, except

that the claws are only feebly dilated towards the base.

1. Telon cucullatus. (Tab. XXVII. figg. 14; 14a, labium; 14 4, maxilla and

maxillary palpus ; 14 ¢, antenna.)

Broad, robust, oblong-oboval, subopaque ; rufo-luteous, the eyes, the antenne, the basal joint excepted, the

palpi in great part, and the apical three-fourths of the elytra, black; beneath luteous, with the abdomen,

except at' the base on either side, black; the legs luteous to the basal third of the tibie, the rest of the

tibie and the tarsi black ; above and beneath densely, minutely punctate, and thickly clothed with very

short fine pubescence, which partakes of the ground-colour, except on the abdomen, where it is fuscous.

Head with indications of a smooth median line; antenne about half the length of the body. Prothorax

transverse, semicircular, bisinuate at the base, with the broad median lobe truncate ; obsoletely canali-

culate, and with two transverse depressions behind connected by a transverse groove; the basal margin

bisinuate, finely denticulate. Scutellum finely denticulate in front. Elytra wider than, and four and

one-third times the length of, the prothorax, widening to beyond the middle, compressed at the sides

below the humeri, and sharply margined, with indications of four faint coste. Fifth ventral segment

entire.

Length 13, breadth 62 millim.

Hab. Panama (Sallé).

One example, probably a female. The locality seems to require confirmation.

* In Cladotoma the ligula and the outer portion of the maxille are both quadrilobate.

PTILODACTYLA. 627

Group PTILODACTYLINI.

PTILODACTYLA.

Ptilodactyla, Latreille, Régne Anim. ed. 2, iv. p. 461 (1829); Lacordaire, Gen. Col. iv. p. 279;

Horn, Trans. Am. Ent. Soe. viii. p. 90.

This neglected genus includes a very large number of species, and it is one of the

most characteristic forms of Coleoptera in Tropical America, extending northwards to

the Southern United States and southwards to Argentina. Of the forty-four described

species, four only are from the Old World, the remainder being all American, these

latter including two from the Southern States, four from Colombia, seven from Guiana,

sixteen from Peru *, four from Brazil, one from Argentina, and six from Cuba. Not

a single species, therefore, has up to the present time been described from within our

limits, whence no fewer than fifty-nine are now recorded; and, judging from the

numerous specimens left unnamed for want of sufficient material, and the limited area

within which many of the others have been found, it is probable that more than one

hundred species exist in Central America. To Ptilodactyla belong many very closely

allied species, several of which can only be distinguished with certainty by the form of

the fifth ventral segment in the males, or, in some cases, by that of the tarsal claws in

this sex. ‘The various species may be grouped by the form of the claws (when both

sexes are available for examination), or by that of the scutellum—characters ignored by

most of the writers on these insects.

The antennz have joints 4-10 each furnished with an articulated ramus in the males,

and are simply serrate in the females ; in three species (P. antennalis, P. humerosa, and

P. tenuis) the third joint is considerably shorter than the fourth. The apical joint of the

maxillary palpi varies a little in length according to the species, but it is never greatly

elongated, as in the males of the two insects here placed under Lachnodactyla. ‘The eyes

are large, often larger and more prominent in the males than in the females. The thorax

is transverse, in most of the species semicircular or subconical in shape, and usually

compressed at the sides before the middle, the anterior (as well as the lateral) margin

being sometimes very prominent; the base is trisinuate or bisinuate, and usually more

or less denticulate, often with a projecting tooth in the centre fitting into a notch in

the front of the scutellum. The scutellum usually has a deep notch in front, and

sometimes a well-defined, narrow, median sulcus as well, or is even broadly and deeply

sulcate down the middle; in a few species there is no trace of emargination in front;

it varies in size and also in shape, but the general shape is cordiform. ‘The elytra in

most of the species are very acutely margined at the sides; in P. caudata they differ

in form in the two sexes. The thorax (and sometimes the other parts of the body

* Co-types of seven of these have been examined :—P. vilis, P. precellens, P. lamellifera, P. heterophya,

P. angusta, P. secedens, and P. minuta, Kirsch; also P. cruccatu, Kirsch, from Colombia.

t+ Not 3-10, as stated by Lacordaire.

412

628 SERRICORNIA.

also) in many species appears at first sight to be coarsely punctured, but when viewed

under a strong lens these “‘ punctures” prove to be raised granules, in the centre of

each of which is a very minute impression, each of these bearing a hair: for convenience,

this form of sculpture is here termed granulate-punctate. The form of the fifth

ventral segment in the males, as already noted, often affords a good character for

the separation of closely allied species, this reaching its maximum in P. caudata,

P. denticulata, and P. montana.

These insects are found upon bushes, especially in damp places, both in the low

country and in the mountains, up to an elevation of 8000 feet, and representatives of

the genus were obtained in most of the localities visited by me in Central America.

The following key is added to assist in the identification of the numerous species ;

the position, however, of those of which the females only are known is doubtful :—

a. Tarsal claws with a rectangular or acute tooth in both sexes.

a’. Scutellum with a deep notch in front and a narrow well-defined median

sulcus *.

‘a’, Body almost glabrous, very shining.

a”, Elytra confusedly punctured, with a distinct sutural stria, this being

more or less deeply impressed at the base . . . . . . « « . Species 1-4.

6’. Elytra punctate-striate . 2. . . 1. 1. ee se we we ew ee ) «CSpecies 5.

b’’. Body pubescent.

da’, Body convex; elytra confusedly punctured.

a‘. Prothorax gibbous in front; humeri of the elytra acute. . . . . Species 7.

b*. Prothorax convex infront . .... . .. . +6. + « « Species 8, 9.

e’’, Body rather depressed.

c’. Elytra not or obsoletely striate. . . . . . . . « . . « « Species 10, 11.

e: Elytra striate. 2. 2. 2. 2. 1. 1 1 ew ew ew ee ww eee «Species 12.

*, Elytra punctate-striate. . . . . » 2.2 «+ Species 13.

b’. sentéliom concave, with a deep notch in front ; body pubssceist . . . «. Species 14.

ce’. Scutellum with a deep notch in front t, and usually more or less sulcate down

os middle anteriorly.

‘, Body almost glabrous; elytra confusedly punctured, with a short deep

sutural stria . 2. 2. 1. 1. 1 ee ew ee we ew ew ew ee Ce) «Species 15.

d’’, Body pubescent.

f. Antenne with joints 3 and 4 long, 3 not or very little shorter than 4.

f*. Elytra not or obsoletely seriate-punctate. . . . . . . . + « Species 16,17.

g’. Hlytra punctate-striate or seriate-punctate.

a’. Body convex or moderately convex. . . . . ~~. ~. + ~ « Species 18-238f.

6°. Body rather depressed . . . 2. 2 1 ee ew ew ee ee Species 24.

g. Antenne with joint 8 very much shorter than A. 2 oe ee se) 6 Species 25, 26.

* Except in some specimens of P. cucullata. + Shallower in some of the small species.

~ The North-American P. serricollis (Say) belongs to this section.

PTILODACTYLA. 629

da’, Scutellum with a shallow notch in front ; upper surface of the body more or

less shining . . . . . . ae . Species 27-29.

- Scutellum with a shallow noteh in front, usually with a smooth, slightly

impressed, median line ; upper surface of the body opaque or dull, rugulose,

thickly pubescent . . . . . . . - oe ew ew es). Species 80-82.

I’. Seutellum without trace of emargination in 1 front, flat,

’, Elytra punctate-striate . . . 1. 1. 1 ee ee ee we ee.) «Species 83.

yn ’, Elytra not or obsoletely striate . . . . . soe ee Species 34, 35.

6. Tarsal claws with a rectangular or acute tooth in the female, the dilated

portion usually longer and always ending in a curved tooth in the male, this

tooth in some species (at least on the anterior tarsi) extending nearly as far

as the claw itself; body pubescent.

g’. Antenne with joint 3 not or a very little shorter than 4*.

g’. Prothorax transversely subquadrate, greatly explanate at the sides, wider

than the base of the elytra; scutellum with a shallow notch in front:

elytra confusedly punctured, the humeri raised and acute . . . . . Species 36.

h’, Prothorax much narrowed anteriorly, angularly dilated at the sides before

the base; scutellum with a moderately deep notch in front; elytra

punctate-striate. . . . . a . . Species 37.

az’, Prothorax much narrowed anteriorly, without angular dilatation at the sides.

h’’, Scutellum with a deep notch in front, and broadly and deeply sulcate

down the middle; elytra obsoletely seriate-punctate. . . . . . Species 38.

i”, Scutellum with a deep notch in front and also narrowly sulcate down

the middle to near the apex; elytra with the humeri subrectangular,

jl. Scutellum with a deep or moderately deep notch in front ; elytra with

the humeri more or less rounded, the surface seriate-punctate or

punctate-striate ft.

h‘, Elytra broadly caudate in the male . . . . . + +. ~~» « Species 40.

a. Elytra not caudate in the male.

ec’. Prothorax with the basal margin more or less denticulate ;

scutellum with a deep or moderately deep notch in front.

a’, Antenne slender, with long ramiin the male. . . . . . . Species 41—50f.

b°. Antennz stout, with shorter rami in the male: species small . Species 51.

d°, Prothorax with the basal margin smooth, or obsoletely denticulate

towards the sides only ; scutellum with a shallow notch in front.

c’, Antenne slender, with long ramiin the male . .. . . . Species 52-55.

d°. Antennz stout, with shorter ramiinthe male . . . . . . Species 56,57.

h!. Antenne with joint 3 considerably shorter than 4; prothorax subconical ;

c. Tarsal claws longer, with a short angular tooth at the base; scutellum with a

deep notch in front; body thickly pubescent. [g unknown.]. . . . . Species 59.

* Shorter in some males of P. forcipata. + Except in some specimens of P. mexicana, P. opima, &e.

+ P. angustata, Horn, from Florida, probably belongs to this section.

630 SERRICORNIA.

1. Ptilodactyla rufa. (Tab. XXVII. figg. 13,¢; 18, antenna.)

Rather short, elliptic, convex, very shining, glabrous above, very sparsely and finely pubescent beneath ;

rufous or rufo-testaceous, the antenne testaceous, with joints 5-10, 6-10, or 7-10 black, the tenth

sometimes testaceous at the tip, the eyes black, the terminal joints of the palpi more or less infuscate,

the legs testaceous; the entire upper surface rather sparsely, minutely punctate, the under surface also

sparsely, but more coarsely punctate. Head broad, the eyes moderately large; antenne—(d¢ ) nearly as

long as the body, with joints 3-10 subequal in length, 4-10 each with a moderately long ramus, the rami

increasing in length outwards, the outer three longer than the joints themselves—( 2 ) gradually widening

and becoming more strongly serrate from the fourth joint, 3 and 4 elongate, 5-11 decreasing in length,

3 slender, 7-10 wide and acutely serrate. Prothorax short, transversely convex in front, sharply

margined at the sides, the latter rounded and converging almost from the base; the base trisinuate,

denticulate, and with a short projecting tooth in the centre ; the hind angles acute and directed back-

wards. Scutellum deeply notched in the centre in front, and with a narrow median sulcus extending

thence to near the apex. Elytra rather short, rounded and acutely margined at the sides, wider than the

prothorax, with a punctured and somewhat deeply impressed sutural stria extending from the base almost

to the apex.

Length 44-54, breadth 23-34, millim. (¢ 2.)

Hab. Guatemata, San Isidro and Zapote (Champion); Nicaracua, Chontales (Janson);

Panama, Bugaba, Volcan de Chiriqui, David, Caldera (Champion).

Found in plenty in Chiriqui, and sparingly in Guatemala, on the Pacific slope. ‘This

is one of several allied Central-American forms, amongst which it may be known by

its convex, ferruginous, very shining body, glabrous upper surface, &c. The antenne

have from four to six of the outer joints black, the terminal one, and sometimes the

apex of the tenth also, as well as those at the base, being testaceous.

2. Ptilodactyla maculata. (Tab. X XVII. fig. 15, ¢, var.)

Rather short, elliptic, convex, very shining, glabrous above, very sparsely pubescent beneath; testaceous, the

elytra usually with the base, a transverse patch on the middle of the disc of each, and, rarely, the apex

or suture, infuscate or black, these markings sometimes partly or entirely obliterated, and sometimes

largely extended, the elytra being entirely black in one example; the antenne also variable in colour—

in some specimens black, with the basal three or four joints and the tip testaceous, in others testaceous,

with joints 8-10 only black; the entire upper surface rather sparsely, finely punctate, the punctures

on the prothorax sometimes coarser than those on the elytra, the under surface also sparsely punctate. Head

proad, the eyes moderately large ; antennee—( ¢ ) rather slender, not so long as the body, joints 4-10 each with

a moderately long ramus—( ? ) gradually widening and becoming more distinctly serrate from the fourth

joint. Prothorax short, transversely convex in front, sharply margined at the sides, the latter rounded

and converging almost from the base; the base trisinuate, denticulate, and with a projecting tooth in the

centre; the hind angles acute and directed backwards. Scutellum deeply notched in the centre in front,

and with a narrow median sulcus extending thence to near the apex. Elytra rather short, wider than

the prothorax, rounded and acutely margined at the sides, more parallel in some specimens, and with a

punctured more or less distinct sutural stria extending from the base almost to the apex.

Length 33-44, breadth 2;4,-23 millim. (¢ 9.)

Hab. Mexico, Teapa in Tabasco (H. H. Smith); Guatemaa, Cubilguitz, Sinanja, and

San Juan in Vera Paz (Champion); Panama, Bugaba, Volcan de Chiriqui (Champion).

Numerous examples. Closely allied to P. rufa, the immaculate variety being very like

that species, but differing from it in the more slender antenne in both sexes and also

PTILODACTYLA. 631

in its smaller size. The colour of the elytra is very variable. In one male from

Bugaba (fig. 15) the basal fascia is so much extended as to nearly reach the median

patch, and the apex also is black; and in another specimen from the same locality the

elytra are entirely black. The antenne, too, as in P. rufa, also vary greatly in colour.

Some specimens are more parallel than others, irrespective of sex. In one of the

Chiriqui males the thorax is much more distinctly punctured than usual.

3. Ptilodactyla nigricornis.

Rather short, oblong-elliptic, convex, very shining; head, prothorax, and under surface very sparsely and finely

pubescent, the rest of the surface apparently glabrous; rufous or brownish-rufous, the antenne black,

with the two basal joints rufo-testaceous, the legs ferrugineo-testaceous; the entire upper surface

rather sparsely, minutely punctate, the punctures on the prothorax excessively minute, the under surface

also sparsely punctate. Head broad, the eyes moderately large; antennea—() as long as the body,

with the joints from the third subequal in length, 4-10 each with a moderately long ramus—( ? ) gradually

widening and becoming more strongly serrate from the fourth joint, 3 and 4 elongate, 5-11 decreasing in

length. Prothorax short, transversely convex in front, sharply margined at the sides, the latter rounded

and converging almost from the base ; the base trisinuate, denticulate, and with a projecting tooth in the

centre; the hind angles acute and directed backwards. Scutellum deeply notched in the centre in front,

and with a narrow median sulcus extending thence to the apex. LElytra moderately long, wider than the

prothorax, acutely margined at the sides, and subparallel from a little below the shoulders to about the

middle, with a shallow, punctured sutural stria not extending to the apex.

Length 44-53, breadth 23-23 millim. (¢ 9.)

Hab. Guatemata, Sinanja in Vera Paz (Champion).

One male and four females. More elongate and more parallel than P. rufa, the

antenne entirely black, the two basal joints excepted, the thorax distinctly pubescent

(even in rubbed examples), the antennz more elongate in both sexes.

4, Ptilodactyla ebenina.

Elliptic, short, convex, very shining; almost glabrous, the head, prothorax, and under surface very

sparsely and finely pubescent in fresh examples ; black or pitchy-black, the antenne black or piceous, the

legs piceous or brown, the tarsi testaceous; the upper surface somewhat thickly, minutely punctate, the

punctures on the prothorax often a little closer and coarser than those on the elytra, the metasternum

sparsely, the rest of the under surface closely, punctured. Head broad, the eyes moderately large;

antenne—(d) about as long as the body, rather slender, joints 4-10 each with a comparatively

short ramus-—( @ ) gradually becoming more distinctly serrate from the fourth joint. Prothorax short,

transversely convex in front, narrowly margined at the sides, the latter rounded from the middle

forwards, and subparallel or slightly constricted behind, the hind angles acute; the base trisinuate,

denticulate at the sides and in the middle, and with a projecting tooth in the centre. Scutellum

smooth, deeply notched in the middle in front and with a narrow median sulcus extending thence to

the apex. Elytra short, a little wider than the prothorax, subparallel to near the middle, narrowly

margined at the sides, and with a very short sutural stria at the base, the humeri somewhat rounded.

Length 22-3, breadth 1j-1} millim. (¢ Q.)

Hab. Mexico, Toxpam, Cordova (Sadlé); Guatema.a, Sinanja and San Juan in Vera

Paz (Champion) ; Panama, Volcan de Chiriqui (Champion).

Many specimens, the insect being apparently not uncommon on the Atlantic slape of

Southern Mexico and Guatemala and in Chiriqui. Easily recognizable by its small

632 SERRICORNIA.

size, black colour, very shining and almost glabrous surface, and short thorax. The

legs vary in colour. The elytra are confusedly punctured, without trace of striz, a

short sutural one at the base excepted. ‘The pubescence is easily abraded, and

only visible on the thorax in fresh specimens, that on the under surface being more

distinct. P. ebenina is much smaller than P. corvina, and has very much shorter and

more slender antenne, the thorax and elytra more narrowly margined, the scutellum

with a narrow, well-defined median sulcus, &c.

5. Ptilodactyla glabrata.

. Moderately long, elliptic, rather broad, convex, shining, almost glabrous; testaceous-brown, the antenne

testaceous, with the eighth and ninth joints slightly infuscate, the eyes black, the legs testaceous. Head

broad, sparsely, finely punctate, the eyes prominent and moderately large ; antenne rather slender, about

as long as the elytra, the joints from the fourth very gradually widening and becoming more distinctly

serrate, 3 elongate, 4-10 slightly shorter and subequal in length. Prothorax short, transversely convex

in front, explanate at the sides behind and compressed laterally towards the apex, the latter appearing

subtruncate as viewed from above, the sides acutely margined and arcuately converging almost from the

base; the base trisinuate, denticulate; the hind angles acute and directed backwards; the surface

sparsely, extremely minutely punctate. Scutellum deeply notched in the centre in front and with a

shallow median sulcus extending thence to near the apex. Elytra moderately elongate, a little rounded

at the sides, widest at the middle, acutely margined at the sides; rather coarsely punctate-striate, the

punctures becoming coarser towards the sides, the first (sutural) and fifth (humeral), however, very deeply

impressed at the base; the interstices feebly convex, flat at the apex, and sparsely, minutely punctate.

Length 63, breadth 3 millim.

Hab. Costa Rica, Volcan de Irazu 6000 feet (Rogers).

One example. Larger, longer, and less parallel than P. nigricornis, the thorax

compressed laterally in front, the antenne pale (the eight and ninth joints excepted),

the elytra punctate-striate, &c. There are traces of fine pubescence on the thorax.

6. Ptilodactyla substriata. (Tab. XXVII. figg. 16, ¢; 16a, antenna.)

3. Oblong-elliptic, flattened above, very shining; above almost glabrous, beneath sparsely and finely

pubescent; black or pitchy-black, the antenne piceous, becoming brownish towards the tip, the apical

joint testaceous, the femora and tarsi testaceous, the tibie brownish. Head sparsely, finely punctate, the

eyes moderately large; antenne stout, not so long as the body, the joints from the fourth slightly

rounded on their outer edge, 4-10 each with a comparatively short ramus, the outer rami very little

longer than the joints themselves, the eleventh joint stout. Prothorax short, transversely convex in

front, sharply margined at the sides, the latter rounded and converging from a little before the base, the

hind angles acute; the base trisinuate, denticulate, and with a projecting tooth in the centre; the surface

extremely minutely, very sparsely punctate. Scutellum distinctly punctured, very deeply notched in the

middle in front, and with a deep sulcus extending thence to the apex. Elytra moderately long, feebly

rounded and sharply margined at the sides, widest at the middle, flattened on the disc, the latter broadly

transversely depressed at about one-fourth from the base; finely, rather sparsely punctate, the disc with

indications of obsolete impunctate strie, the first and fifth deeply impressed at the base. Beneath

sparsely and more coarsely punctured than above, the ventral segments somewhat closely punctate.

Fifth ventral segment arcuate-emarginate at the apex.

Length 4,4,-4%, breadth 2 millim.

Hab. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Rogers).

PTILODACTYLA. 633

Two males. Easily separable from its allies by the depressed, obsoletely striate disc

of the elytra. The antenne are rather stout, with shorter rami than in the males of

P. nigricornis, P. rufa, &c.; the apical joint is unusually stout.

7. Ptilodactyla gibbicollis.

3. Elliptic, short, convex, very shining; somewhat thickly clothed with very short, fine, ashy pubescence,

the elytra with sparser and darker pubescence; black, the antenne and legs piceous, the tarsi obscure

testaceous; the upper and under surfaces somewhat thickly and very finely, the head and the flanks

of the prothorax more densely, punctate. Head very broad, the eyes comparatively small; antenne

slender, fully as long as the body, joints 4-10 each with a long slender ramus, the outer rami very much

longer than the joints themselves. Prothorax moderately transverse, compressed at the sides ante-

riorly, strongly gibbous in front, the apex acutely margined in the centre, the sides somewhat obliquely

converging from the base, rounded anteriorly, and acutely margined from the base to a little beyond the

middle, the hind angles acute; the base bisinuate, strongly denticulate, and with three longer teeth

opposite the scutellum. Scutellum rugulose, very deeply notched in the centre in front, and with a

shallow median sulcus extending thence to the apex. Elytra short, of the same width as the prothorax,

subparallel in their basal half and conjointly rounded at the apex, compressed laterally below the shoulders,

appearing acutely margined at the sides, flattened on the disc at the base, with a short indistinct sutural

stria, the humeri rectangular.

Length 3, breadth 14 millim.

Hab. Panama, Bugaba (Champion).

One specimen, in a bad state of preservation. Differs from all the allied forms in

the gibbous, relatively long thorax. The antenne are long and slender, with long

slender rami. ‘The base of the thorax is not arcuate-emarginate opposite the scutellum

(as in P. ebenina, &c.), and is very distinctly denticulate throughout. The elytra are

compressed at the sides below the shoulders, which are rectangular and rather prominent.

The pubescence, above and beneath, is more distinct than in most of the allied species.

8. Ptilodactyla convexicollis.

Elliptic, short, convex, shining; above and beneath somewhat thickly clothed with very short, fine, appressed,

yellowish-cinereous pubescence ; reddish-brown or rufo-testaceous, the antenne testaceous, with joints

6-9 or 7-9 usually infuscate, the eyes black, the legs testaceous, with the tibie often darker; the

upper surface thickly, very finely punctate, the under surface more coarsely punctured. Head broad, the

eyes large and somewhat prominent ; antenne rather slender, nearly as long as the body, joints 4-10 each

with a short ramus in the male and gradually becoming more distinctly serrate in the female. Prothorax

short, transversely convex in front, widest a little before the base, the sides rounded, converging anteriorly,

and sharply margined, subparallel behind, the hind angles acute; the base trisinuate, finely denticulate,

and with a short projecting tooth in the centre. Scutellum deeply notched in the centre in front and with

a narrow well-defined median sulcus extending thence to the apex. [lytra short, wider than the

prothorax, subparallel in their basal half, narrowly margined, rather sharply produced at the apex, and

with a short sutural stria at the base. Fifth ventral segment arcuate-emarginate at the apex in the

male. Tarsal claws with a rectangular tooth in both sexes.

Length 33-44, breadth 13-2 millim. (¢ @.)

Hab. Mexico, Cordova (Sallé), Teapa in Tabasco (Sallé, Hoge, H. H. Smith); Britisu

Honpuras, Belize (Blancaneaux); GuaTEMALA, San Juan and Cubilguitz in Vera Paz,

Cerro Zunil (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1897. 4M

634 SERRICORNIA.

Sixteen specimens, all but one from the Atlantic slope. This little species is allied to

P. ebenina, but it is larger and broader, and reddish-brown or rufo-testaceous in colour ;

the upper surface is more closely punctured, and somewhat thickly clothed with short

pruinose pubescence; and the antenne are testaceous, with from two to five of the

intermediate joints more or less infuscate in both sexes. One of the specimens in the

Sallé collection is labelled with the MS. name Ptilodactyla convexicollis, Chevr. ‘The

single example, a large female, from Cerro Zunil has the antenne entirely testaceous.

9. Ptilodactyla cucullata.

black or brown, the legs piceous with the tarsi testaceous, or entirely testaceous; the upper surface very

finely, somewhat thickly punctate, the under surface more coarsely punctured. Head broad, the eyes

rather small; antennee reaching to a little beyond the middle of the elytra, rather slender, the joints from

the fourth serrate. Prothorax short, broad, transversely convex in front, acutely margined at the sides

and apex, abruptly compressed at the sides anteriorly, widest before the base, the sides rounded

and somewhat explanate, converging in front, the hind angles acute; the base trisinuate, feebly

denticulate, and with a short projecting tooth in the centre. Scutellum with a deep notch in the centre

in front, and usually with a narrow shallow median sulcus. Elytra short, at the base not wider than the

base of the prothorax, broadly and acutely margined at the sides, compressed laterally below the humeri,

subparallel to about the middle, and a little produced at the apex, with a short, very deeply impressed,

sutural stria at the base.

Length 3-33, breadth 14-12 millim.

Hab. Mexico, Teapa in Tabasco (Sallé, H. H. Smith); British Honpuras, Belize

(Blancaneaux) ; Guatemala, Zapote (Champion) ; Honpuras (Sal/é).

Five specimens, all females. This species approaches P. convexicollis; but differs

from it, apart from its smaller size and black colour, in having the thorax more acutely

margined at the apex and strongly compressed at the sides anteriorly, the scutellum with

the median sulcus shallow or obsolete, &c. ‘The more pubescent body, the prominent

anterior. margin of the thorax, the rugulose and less deeply notched scutellum, the

deeply impressed short sutural stria, &c., distinguish it from P. ebenina, which it

resembles in size and colour. The specimen in the Sallé collection is labelled with the

MS. name Ptilodactyla cucullata, Chevr.

10. Ptilodactyla canaliculata.

Oblong-elliptic ( ¢), oblong-oboval (@ ), narrow, flattened above, moderately shining, thickly clothed with

short fine pallid pubescence ; rufo-piceous, the base and suture of the elytra more or less ferruginous, the

eyes black, the antenna, palpi, and legs testaceous. Head densely punctured, the eyes large and prominent

in the male, smaller in the female; antenn long and rather slender, the joints 4-10 each with a short

ramus in the male and serrate in the female. Prothorax short, transversely convex in front, acutely

margined and rounded at the sides, widest before the base and narrowed anteriorly, the hind angles acute ;

the base trisinuate, feebly denticulate, and with a short projecting tooth in the centre; the surface closely

and rather coarsely granulate-punctate in the male, the punctuation more diffuse in the female. Scutellum

rugulose, deeply notched in the centre in front, and with a well-defined median sulcus extending thence

to the apex. Elytra moderately long and considerably wider than the prothorax in the female, shorter

and narrower in the male, depressed on the disc below the base, acutely margined at the sides, the humeri

PTILODACTYLA, 635

rather sharp; the surface thickly, very finely punctate, and in one specimen also obsoletely seriate-

punctate on the disc. Fifth ventral segment rather deeply emarginate at the apex in the male.

Length 3-43, breadth 12-1, millim. (¢ 9.)

Hab. Mexico, Teapa in Tabasco (H. H. Smith); Guatemata, Cerro Zunil

(Champion).

Four males from Teapa and a female from Cerro Zunil. Narrower and flatter than

P. convexicollis, the thorax thickly and rather coarsely granulate-punctate, the antenne

entirely testaceous. The female is much larger than the males, it also having the thorax

more sparsely punctate and the elytra obsoletely seriate-punctate on the disc. P. angusta,

Kirsch, from Peru, is an allied form, but it is relatively longer, flatter, and more

parallel, and has distinct rows of punctures on the elytra.

11. Ptilodactyla deplanata.

2. Moderately long, flattened above, shining, sparsely and finely pubescent, piceous, the antenne black, the

legs brownish; the upper surface sparsely, minutely punctate, the punctures on the prothorax very minute.

Head broad, the eyes rather small; antenne stout, reaching to beyond the middle of the elytra, the joints

from the fourth triangularly dilated. Prothorax short, broad, transversely convex in front, rounded at

the sides and narrowed from a little before the base, the hind angles acute ; the base trisinuate and feebly

denticulate. Scutellum notched in the centre in front and with a median sulcus extending thence to near

the apex. LElytra moderately long, flattened on the disc and also transversely depressed below the base, of

the same width as the prothorax in front, widest a little beyond the middle, broadly and acutely margined

at the sides, with indications of faint strie on the disc towards the suture.

Length 4-47, breadth 13-2 millim.

Hab, Panama, Volcan de Chiriqui 4000 feet (Champion).

Two females. This insect resembles the female of P. canaliculata, but differs from

it in the stout, black antenne, the broader and smoother thorax, &c. ‘The antennal

joints 4-10 are broadly triangularly dilated.

12. Ptilodactyla fuscicornis.

Oblong-elliptic, narrow, flattened above, shining, thickly clothed with pallid pubescence; nigro-piceous or

rufo-piceous, the antenne black or piceous, with the two basal joints reddish, the legs and palpi

testaceous. Head rugulosely punctured, the eyes comparatively small in both sexes; antennz moderately

long, slender, the joints 4-10 each with a short ramus in the male and serrate in the female. Prothorax

short, convex in front, the sides subparallel or slightly sinuate behind and arcuately converging from

about the middle forwards, the hind angles acute ; the base trisinuate, finely denticulate, and with a short

projecting tooth in the centre ; the surface thickly, finely punctate. Scutellum closely punctured, notched

in the centre in front, and with a narrow well-defined median sulcus extending thence almost or quite

to the apex. Elytra moderately long, wider than the prothorax, broadly margined and slightly rounded

at the sides, the humeri rounded; shallowly striate, the interstices rugulosely punctured.

Length 33-4, breadth 13-12 millim. (¢ 9.)

Hab. Guatemata, Cubilguitz in Vera Paz (Champion).

One pair. This insect resembles the Costa Rican P. substriata ; but it is narrower

and not so shining, the upper surface is more closely punctured and pubescent, the

scutellar groove is shallower and narrower, the legs are more slender and entirely

4M2

636 SERRICORNIA.

testaceous, &c. From P. gracilis it may be known by its narrower, less parallel form,

the pale slender legs, the shorter antenne, which have much shorter rami in the

male, &c.

13. Ptilodactyla obovata.

Q. Oboval, short, moderately convex, rather dull, the elytra shining, thickly clothed with short pallid

pubescence ; rufo-fuscous, the antennz and legs testaceous. Head densely, rugulosely punctate, the eyes

rather small; antenne long and slender, feebly serrate. Prothorax short, moderately convex in front,

rounded at the sides, the latter rapidly converging from about the basal third forwards, the hind angles

acute; the base trisinuate, obsoletely denticulate at the sides, with a short projecting tooth in the centre ;

the surface densely granulate-punctate. Scutellum rugulose, deeply notched in front, and with a narrow

median groove extending thence to near the apex. Elytra wider than the prothorax, narrowly margined

and a little rounded at the sides, the apices sharp and slightly produced, the humeri rounded ; punctate-

striate, the interstices rugulosely punctured.

Length 4, breadth 2 millim.

Hab. Mexico, Jalapa (Hége).

Two specimens. An obscure little species, apparently not very closely allied to any

of those described here, and chiefly distinguishable by its obovate shape, canaliculate

scutellum, and densely punctured thorax.

14. Ptilodactyla brevicollis, (Tab. XXVII. fig. 17, 2.)

testaceous, the eyes black, the antenne and legs testaceous. Head very finely punctate, the eyes

moderately large; antenne long and slender, feebly serrate, joints 3 and 4 equal in length. Prothorax

very short, moderately convex in front, sharply margined and distinctly explanate at the sides behind,

the sides rounded and converging from about the basal third forwards; the base trisinuate, almost smooth,

with a projecting tooth in the centre; the surface very finely, rather sparsely punctate, and transversely

depressed on the disc before the base. Scutellum concave, deeply notched in the centre in front, almost

smooth. Elytra elongate, rounded and acutely margined at the sides, narrowing from about the middle,

shallowly punctate-striate, the punctures of the striz becoming coarse and deep at the sides, the interstices

thickly, rugulosely punctate.

Length 4, breadth 14 millim.

Hab. Mexico, Toxpam (Salié).

One example. Easily distinguishable by the deeply notched, concave scutellum.

The insect is oval in shape, with a very short, comparatively smooth thorax, the

sides of which are rounded and distinctly explanate. ‘The scutellum is so broadly

hollowed down the middle as to appear concave. /P. brevicollis somewhat resembles

P. marginata, but it is narrower, and has a much more transverse thorax, punctate-

striate elytra, &c.

15. Ptilodactyla corvina. (Tab. XXVII. fig. 21, ¢, var.)

6. Rather short, elliptic, convex, very shining; head, prothorax, and under surface very sparsely and

finely pubescent, the rest of the surface apparently glabrous; black, the head and prothorax sometimes

of a more piceous tint, the under surface partly piceous, the antennez black, with the basal joint often

reddish, the legs piceous or brownish, with the femora paler; the upper surface sparsely and minutely,

PTILODACTYLA. 637

the under surface more coarsely, punctate. Head broad, the eyes large; antennew as long as the body,

stout, the joints 4-10 each with a moderately long and stout ramus, 3 a good deal stouter than 4.

Prothorax short, transversely convex in front, sharply. margined at the sides, the latter rounded and

converging from a little before the base, parallel behind; the base trisinuate, denticulate; the hind

angles acute and directed backwards. Scutellum with a very deep notch in the centre in front and also

deeply sulcate anteriorly. Elytra rather short, feebly rounded at the sides, with a deeply impressed

sutural stria at the base only, the apices conjointly rounded. Fifth ventral segment arcuate-emarginate

at the apex.

Var. The head in front and the prothorax rufous. (Fig. 21.)

Length 4-44, breadth 2-2; millim.

Hab. Mexico, Orizaba and Toxpam (Sal/é).

Four examples, including one of the variety, all males. This insect approaches

P. nigricornis; but it is differently coloured, the scutellum is still more deeply

sulcate anteriorly (instead of having a sharply defined, narrow, median sulcus, as in

P. nigricornis and its allies), the thorax is more parallel behind, the sutural stria of

the elytra is very short, &c. It is much larger than P. ebenina.

16. Ptilodactyla marginata.

Oval, somewhat flattened above, shining, thickly and finely pubescent ; varying in colour from pitchy-black or

piceous with the sides of the prothorax and the suture and sides of the elytra obscure ferruginous to

entirely rufo-testaceous, the elytra usually with a paler humeral patch, the antenne fuscous or obscure

testaceous, the legs testaceous. Head rugulosely punctured, the eyes large; antenne long and slender,

the joints 4-10 each with a ramus in the male and serrate in the female. Prothorax short and broad,

transversely convex in front, sharply margined at the sides, the latter rounded and converging from about

the middle forwards; the base trisinuate, obsoletely denticulate, and with a short projecting tooth in the

centre; the surface very finely, somewhat thickly punctate. Scutellum sparsely punctured, deeply

notched in the centre in front. Elytra rather short, widest at about one-fourth from the base and there

very much wider than the prothorax, the sides rounded and broadly and acutely margined, the apices

somewhat produced ; thickly, very finely punctate, in one specimen obsoletely seriate-punctate on the disc,

and with a row of coarse punctures within the margin, and usually a row of fine punctures along the

suture. Fifth ventral segment rather deeply emarginate at the apex in the male.

Length 34-44, breadth 2-2; millim. (dQ .)

Hab. Mexico, Teapa in Tabasco (H. H. Smith), Tapachula in Chiapas ({oge) ;

Guatema.a, Zapote (Champion).

Found in some numbers at Teapa, single elsewhere. This small species may be

chiefly known by its broadly and acutely margined, confusedly punctured elytra, and

very finely punctured thorax. It is more oval in shape and more depressed than

P. convexicollis, from which it also differs in the non-canaliculate scutellum, the colour

of the antenne, &c.

17. Ptilodactyla chiriquensis.

Elliptic, moderately convex, flattened above, shining, thickly clothed with rather long pallid pubescence ;

piceous or fusco-ferruginous, the base of the prothorax, the scutellum, and suture reddish in dark

specimens, the antenne fusco-testaceous, the legs testaceous. Head rugulosely punctured, the eyes

moderately large ; antenne long and slender, the joints 4-10 each with a moderately long ramus in the

male and feebly serrate in the female. Prothorax short, convex in front, sharply margined at the sides,

the sides gradually converging from the base and rounded anteriorly, the hind angles acute; the base

638 SERRICORNIA.

trisinuate, almost smooth; the surface finely and somewhat thickly granulate-punctate. Scutellum

rugulosely punctured, notched in the centre in front. Elytra rather short, a little wider than the

prothorax, sharply margined at the sides ; thickly, finely punctate, with indications of obsclete strie or

rows of coarser punctures on the disc, and with a row of coarse punctures within the margin. Fifth

ventral segment rather deeply subtriangularly emarginate in the male.

Length 3-4, breadth 14-2 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 2500-4000 feet (Champion).

Five specimens, all in a bad state of preservation. A very obscure species, perhaps

nearest allied to P. marginata, from which it differs in its smaller size, the finely

granulate-punctate thorax, and the more parallel and more narrowly margined elytra.

P. chiriquensis is also very like P. marcida, but has less distinctly striate elytra, a

more deeply notched scutellum, and differently formed claws in the male.

18. Ptilodactyla convexa.

Elliptic, rather short, convex, thickly clothed with short brownish pubescence ; pitchy-black, piceous, reddish-

brown, or ferruginous, the antenne and legs brownish or testaceous. Head rugulosely punctured, the

eyes large ; antenne long and slender, the joints 4-10 each with a moderately long ramus in the male

and serrate in the female. Prothorax short, broad, transversely convex in front, sharply margined at the

sides, the sides rapidly converging from the basal third forwards and subparallel behind, the hind angles

acute; the base trisinuate, denticulate, and with a projecting tooth in the centre; the surface somewhat

thickly granulate-punctate. Scutellum thickly punctured, very deeply notched in front and with a broad

deep median groove extending thence to near the apex. Elytra rather short, wider than the prothorax,

broadly and acutely margined at the sides, the humeri rounded ; seriate-punctate to near the apex, the

interstices flat and rugulosely punctate. Fifth ventral segment arcuate-emarginate at the apex in the

male. Tarsal claws with an acute tooth in both sexes.

Length 5-53, breadth 23-2? millim. (d 2.)

Hab. Mexico (Sallé), Jalapa (Hoge), Teapa in Tabasco (H. H. Smith); Nicaraava,

Chontales (Belt).

Sent in numbers by Herr Hoge. A moderately large, convex species, with very

deeply notched and grooved scutellum, the claws similar in both sexes. It resembles

P. sulcata, but is smaller and less elongate, and has the thorax less narrowed in front

and more parallel behind. The following is a more nearly allied form.

19. Ptilodactyla confinis.

Elliptic, rather convex, somewhat flattened above, thickly clothed with short brownish pubescence ; piceous or

| reddish-brown, the antenne and legs brownish or testaceous. Head rugulosely punctured, the eyes

large ; antenne long and slender, the joints 4-10 each with a slender ramus in the male and serrate in

the female. Prothorax short, transversely convex in front, sharply margined at the sides, the sides

rounded and narrowing from a little before the base to the apex, the hind angles acute; the base

trisinuate, finely denticulate, and with a projecting tooth in the centre; the surface somewhat thickly

granulate-punctate. Scutellum thickly punctured, deeply notched in the centre in front. Elytra rather

short, wider than the prothorax, acutely margined at the sides, somewhat pointed behind, the humeri

rounded ; shallowly punctate-striate to near the apex, the interstices flat and rugulosely punctate. Fifth

ventral segment subtriangularly emarginate at the apex in the male. Tarsal claws rectangularly dilated

in both sexes.

Length 43-63, breadth 23-3 millim. (d 2.)

PTILODACTYLA. 639

Hab. Mexico (Hoge), Toxpam (Sallé), Teapa in Tabasco (H. H. Smith); Britisu

Howpuras, Belize (Blancaneaux); GuateMata, San Juan in Vera Paz, Zapote

(Champion), Guatemala city (Salvin); Nicaragua, Chontales (Belt, Janson); Panama,

Volcan de Chiriqui (Champion).

Hab. Mexico, Jalapa, Tapachula (Hége); Guatemaa, Capetillo, Zapote (Champion).

Very like P. convera, but less convex and usually narrower and a little more

elongate, with the scutellum not so deeply notched in the centre in front. In some

specimens the seriate punctures on the elytra are very distinct and placed in shallow

strie. The thorax is narrowed almost from the base. Both sexes were found at

Teapa, Chontales, and Belize, females only elsewhere. ‘The specimens treated as a

variety, all females, differing considerably inter se, appear to belong to an extreme form

of the same species; the two examples from Jalapa are more elongate than the others.

P. confinis is nearly allied to the North-American P. serricollis (Say); but it is less

parallel, the scutellar notch is deeper, the elytra are more obliquely narrowed behind,

and the fifth ventral segment in the male is less deeply emarginate.

20. Ptilodactyla guatemalensis.

Moderately elongate, broad, robust, shining, thickly clothed with brownish pubescence, piceous, the antenn

and legs testaceous or obscure testaceous. Head rugulosely punctured, the eyes large; antenne very

long and slender, the joints 4-10 each with a long ramus in the male, the outer rami about one-half

longer than the joints themselves, and acutely serrate in the female. Prothorax short, transversely convex

and greatly narrowed in front, the sides acutely margined and slightly explanate behind, the sides rounded

and rapidly converging from a little before the base to the apex, the hind angles acute; the base

trisinuate, denticulate, and with a short projecting tooth in the centre; the surface thickly granulate-

punctate. Scutellum closely, rugulosely punctate, notched in the centre in front. Elytra moderately

long, much wider than the prothorax, sharply margined at the sides, subparallel in their basal half in the

male, a little rounded at the sides in the female, the apices sharp, the humeri rounded ; obsoletely

punctate-striate, the interstices closely, rugulosely punctate. Fifth ventral segment deeply emarginate

at the apex in the male. Tarsal claws acutely rectangularly dilated in both sexes.

Length 7-71, breadth 33-34 millim. (¢ 2.)

Hab. Guatemaua, San Gerdnimo, Capetillo, Zapote (Champion).

Two males and one female. Very like P. mexicana and its allies, but differing from

them in the form of the tarsal claws in the male, the dilated portion not being

produced into a rather long curved tooth in this sex. This character brings the present

species near P. confinis and P. convexa, from which its larger size, broader and more

robust form, and less deeply notched scutellum will serve to distinguish it.

91. Ptilodactyla submaculata.

Elliptic, narrow, moderately convex, shining, thickly clothed with rather long pallid pubescence ; rufo-

testaceous, the elytra testaceous, usually with a subtriangular or oblong patch at the sides about the

640 SERRICORNIA.

middle extending downwards, and a large common subtriangular patch below the scutellum infuscate or

piceous, the eyes black, the antenn and legs testaceous. Head rugulosely punctured, the eyes large and

prominent in the male, smaller in the female; antenne slender, moderately long, the joints 4-10 each

with a comparatively short ramus in the male and feebly serrate in the female, joint 3 slightly shorter

than 4. Prothorax short, convex in front, sharply margined at the sides and apex, the sides rounded

and rapidly converging from a little before the base to the apex, the hind angles acute; the base

trisinuate, feebly denticulate, and with a short projecting tooth in the centre; the surface thickly

granulate-punctate. Scutellum rugulosely punctured, with a deep notch in the centre in front. LElytra

rather short, sharply margined and distinctly rounded at the sides, widest at the middle and there a good

deal wider than the prothorax, the apices sharp, the humeri rounded ; punctate-striate to near the apex,

the interstices thickly punctured. Fifth ventral segment feebly emarginate in the male. Tarsal claws

rectangularly dilated in both sexes.

Length 33-33, breadth 14-1? millim. (3 9.)

Hab. British Honpvras, R. Hondo (Blancaneaux) ; Nicaragua, Chontales (Janson).

One male and five females from the Rio Hondo and a female from Chontales. This

small species somewhat resembles P. deleta, but it is smaller, shorter, and more convex ;

the scutellum is deeply notched in front ; the elytra usually have rather definite markings,

and the tarsal claws are similarly formed in both sexes. The elytra in fully-coloured

examples appear to have an oblique yellowish stripe extending from the shoulders

downwards. P. trinotata, Lacord. (Gen. Col., Atlas, t. 43. fig. 2), from Brazil, is very

like P. submaculata in size and colour, but is figured with an unemarginate scutellum.

22. Ptilodactyla rufotestacea.

3. Oblong-elliptic, rather broad, flattened above, shining, thickly pubescent, rufo-testaceous, the eyes black,

the antenne and legs testaceous. Head closely punctured, the eyes large; antenne very elongate,

slender, the joints 4-10 each with a long ramus, the rami much longer than the joints themselves.

Prothorax short, broad, greatly narrowed and moderately convex in front, sharply margined at the sides

and apex, and slightly explanate at the sides behind, the sides feebly rounded and rapidly converging

from the base, the hind angles sharp; the base trisinuate, obsoletely denticulate ; the surface thickly

punctate. Scutellum rugulosely punctured, notched in the centre in front. LElytra rather elongate,

wider than the prothorax, the sides a little rounded and broadly margined, the apices sharply produced,

the humeri rounded ; obsoletely punctate-striate to near the apex, the interstices closely and rugulosely

punctured. Fifth ventral segment somewhat broadly depressed along the middle and deeply emarginate at

the apex. ‘Tarsal claws rectangularly dilated.

Length 63, breadth 3,1, millim.

Hab. Guatemata, San Gerdnimo (Champion).

One example. This insect is not unlike P. pallescens; but it has a much broader

thorax and acuminate elytra, the antennal rami are much more elongate, and the

tarsal claws are differently formed, the last-mentioned character bringing it near

P. tabascoana, &c.

23. Ptilodactyla tabascoana.

Elliptic, flattened above, shining, thickly clothed with rather long yellowish-cinereous pubescence; fusco-

ferruginous, the antenne and legs testaceous. Head rugulosely punctured, the eyes large ; antennez long

and slender, the joints 4-10 each with a moderately long ramus in the male and serrate in the female.

PTILODACTYLA. 641

Prothorax short, moderately convex in front, sharply margined at the sides, the latter rounded and

rapidly converging from a little before the base to the apex, the hind angles acute; the base trisinuate,

denticulate, and with a short projecting tooth in the centre; the surface thickly granulate-punctate.

Scutellum rugulose, deeply notched in the centre in front. Elytra moderately long, sharply margined

and a little rounded at the sides, wider than the prothorax, the humeri rounded ; shallowly punctate-

striate, the interstices rugulosely punctured. Fifth ventral segment in the male deeply emarginate at

the apex and with a short longitudinal groove in front of the emargination. Tarsal claws rectangularly

dilated in both sexes.

Length 43-48, breadth 2 millim. (3 2.)

Hab. Mexico, Frontera in Tabasco (Hége).

Three examples. Very like P. granulicollis, but shorter and less parallel, the fifth

ventral segment differently formed in the males, the claws similar in both sexes.

24. Ptilodactyla gracilis.

3. Moderately long, subparallel, flattened above, shining; somewhat thickly clothed with rather long, very

fine, brownish pubescence ; black, the antennex and legs black or piceous, the tarsi in great part testaceous.

Head densely punctured, the eyes Jarge; antennae as long as the body, slender, joints 4-10 each with a

slender ramus, the rami becoming longer outwards, the outer four much longer than the joints themselves.

Prothorax short, transversely convex in front, acutely margined at the sides and apex, the sides rounded

and converging from about the middle forwards and subparallel behind, the hind angles acute; the base

trisinuate, and very feebly denticulate at the sides and in the middle; the surface closely, somewhat

coarsely granulate-punctate, and feebly, transversely depressed before the base. Scutellum rugulose,

deeply notched in the centre in front and also sulcate anteriorly. Elytra moderately long, flattened on

the disc and also transversely depressed below the base, wider than the prothorax, subparallel in their

basal half and a little produced at the apex, sharply margined ; punctate-striate on the disc, the strie

not extending to the apex and becoming indistinct at the sides, the interstices flat and somewhat thickly

punctured. Legs long and slender. Fifth ventral segment deeply emarginate at the apex.

Length 32-4}, breadth 13-1,%, millim.

Hab. Guatemata, Cerro Zunil, Zapote, Capetillo (Champion).

Four examples, all males, from the Pacific slope. This small species is not very

closely allied to any of the others here described, and chiefly distinguishable by its

black colour, close punctuation, brownish pubescence, and long black antenne.

25. Ptilodactyla antennalis.

3g. Oblong-elliptic, narrow, flattened above, shining, thickly clothed with rather long pallid pubescence ;

rufo-testaceous, the eyes black, the antenne and legs testaceous. Head rugulosely punctured, the eyes

large and prominent; antenne long and slender, the joints 4-10 each with a rather long ramus,

joint 3 very much shorter than 4. Prothorax short, convex in front, sharply margined at the sides

and apex, the sides rounded and rapidly converging from a little before the apex to the apex, the hind

angles acute; the base trisinuate, feebly denticulate, and with a short projecting tooth in the centre; the

surface thickly granulate-punctate. Scutellum rugulosely punctured, deeply notched in the centre in

front. Elytra rather short, sharply margined and a little rounded at the sides, slightly wider than the

prothorax ; shallowly or obsoletely punctate-striate to near the apex, the interstices thickly punctate.

Fifth ventral segment feebly subtriangularly emarginate at the apex.

Length 33-4, breadth 13-14 millim.

Hab. British Honpuras, R. Hondo (Blancaneaus).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1897. 4N

642 SERRICORNIA.

Two males. Very like P. lutescens and P. submaculata, but differing from these and

nearly all the other allied forms (P. humerosa and P. tenuis excepted) in the unusually

short third joint of the antenne, this joint being about one-third shorter than the fourth.

26. Ptilodactyla humerosa.

Elliptic, narrow, moderately convex, shining, thickly clothed with rather long pallid pubescence ; piceous,

the prothorax bordered on all sides with ferruginous, the elytra with a large humeral patch and the sides

broadly and indeterminately from a little beyond the middle to the apex, and also the outer margins,

testaceous, the suture and scutellum obscure ferruginous ; the antennw and legs testaceous, the eyes black.

Head rugulosely punctured, the eyes large and prominent; antennw slender, moderately long, the joints

4-10 each with a ramus, the rami increasing in length outwards, the outer ones much longer than the

joints themselves, joint 8 much shorter than 4. Prothorax short, convex in front, sharply margined at

the sides and apex, the sides rounded and rapidly converging from about the basal third forwards, the

hind angles acute; the base trisinuate, smooth, with a short projecting tooth in the centre; the surface

thickly granulate-punctate. Scutellum rugulosely punctured, notched in the centre in front. Hlytra

rather short, acutely margined and slightly rounded at the sides, of the same width as the prothorax

at the base, a little wider at the middle; shallowly punctate-striate to near the apex, the interstices

thickly punctured. Fifth ventral segment feebly subtriangularly emarginate at the apex.

Length 2,°,, breadth 13 millim.

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

One example. Agrees with P. antennalis in the short third antennal joint, but differs

from that species in its smaller size and less elongate shape, the smooth basal margin

of the thorax, and also in the coloration of the elytra. The insect has also been found

in plenty by Mr. Smith in the island of St. Vincent, and these specimens show very little

variation. From the Peruvian P. secedens, Kirsch, which it resembles in colour, the

present species may be known by the short third antennal joint and the granulate,

posteriorly dilated thorax.

27, Ptilodactyla lutescens.

Elliptic, narrow, flattened above, shining, thickly clothed with rather long pallid pubescence ; testaceous or

fusco-testaceous, the elytra usually with a more or less distinct oblique paler stripe extending downwards

from the shoulder to the suture, the antenne and legs testaceous. Head rugulosely punctured, the eyes

large and prominent in the male, smaller in the female; antenne very long and slender, the joints 4-10

each with a long ramus in the male, joint 3a little shorter than 4. Prothorax short, moderately convex in

front, sharply margined at the sides and apex, the sides rounded and rapidly converging from about the

basal third to the apex, the hind angles acute; the base trisinuate, obsoletely denticulate at the sides ;

the surface thickly granulate-punctate. Scutellum rugulosely punctured, with a shallow notch in the

centre in front. Elytra rather short, sharply margined and a little rounded at the sides, slightly wider

than the prothorax ; coarsely punctate-striate, the interstices feebly convex and thickly punctured. Fifth

ventral segment shallowly arcuate-emarginate at the apex in the male.

Length 3-32, breadth 14-1} millim.

Hab. Mexico, Teapa in Tabasco (Sallé, Hoge, H. H. Smith); Guatemaua, San Juan

in Vera Paz (Champion).

Seven examples. Very like P. deleta, but considerably smaller and with much

shorter elytra. The fifth ventral segment is feebly emarginate at the apex in the male.

PTILODACTYLA. 643

The very feebly notched scutellum and the less convex thorax separate it from

P. submaculata. The single specimen in the Sallé collection is labelled with the MS.

name P. lutescens, Chevr.

28. Ptilodactyla montana. (Tab. X XVII. figg. 24, ¢; 244, fifth ventral

segment. )

Moderately elongate, flattened above, shining, thickly clothed with short, fine, brownish pubescence ; black,

piceous, or brown, the elytra with an oblique humeral patch of variable size, and sometimes a large apical

patch also, testaceous or obscure testaceous—in pale specimens brown, with a common triangular piceous

scutellar patch and an oblique yellowish humeral streak, the sides of the prothorax sometimes testaceous

behind, the antennz black or brown, the legs testaceous. Head rugulose, the eyes moderately large ;

antenne long and stout, the joints 4-10 each with a short ramus in the male, and subtriangular and

considerably dilated in the female. Prothorax very short, feebly convex in front, strongly com-

pressed at the sides before the middle, the sides abruptly and rapidly narrowing from about the basal

third forwards and subparallel or a little rounded behind ; the base bisinuate, smooth; the surface closely,

finely punctate, and usually with two shallow fovee on the disc before the base. Scutellum flat, trans-

versely cordate, densely punctured, very feebly notched in the centre in front. Elytra moderately elongate,

much wider than the prothorax, parallel in their basal half, slightly depressed on the disc below the

base, narrowly margined at the sides, the humeri. rounded ; somewhat coarsely punctate-striate to near

the apex, the interstices rugulosely punctured. Fifth ventral segment in the male broadly and very

deeply emarginate at the apex, the emargination extending to beyond the middle of the segment and

fringed with long hairs. Tarsal claws rectangularly dilated in both sexes.

Length 33-43, breadth 13-1? millim. (d 2.)

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

Found in numbers in a bamboo-thicket on the slope of the Volcan de Chiriqui.

This species varies a good deal in the coloration of the elytra, according to the

predominance of the light or dark colour, but the humeral mark is always distinct.

The scutellum is flat and strongly transverse, and very feebly notched in the centre in

front. This insect is not very closely allied to any of the others described here. The

form of the claws in the male distinguishes it from P. tenuis, &c. P. minuta, Kirsch,

from Peru, is an allied form, but it is much less elongate.

29. Ptilodactyla scapularis,

2. Oblong-elliptic, narrow, flattened above, dull, the elytra more shining; thickly clothed with very short

fine, pale greyish, pruinose pubescence; black, the anterior and lateral margins of the prothorax ferru-

ginous, the elytra with a large patch at the shoulders testaceous or flavo-testaceous and about the apical

third indeterminately fusco-testaceous, this colour extending some distance forwards along the suture and

along the lateral margin to the shoulders; the antennz and legs testaceous, the femora slightly darker.

Head densely, rugulosely punctate, the eyes moderately large; antenne elongate, slender, feebly serrate,

Prothorax short, transversely convex in front, the sides rounded and rapidly converging from a little

before the base to the apex, the hind angles acute; the base trisinuate, smooth ; the surface very densely

punctured. Scutellum densely punctate, notched in the centre in front. Elytra moderately long, wider

than the prothorax, subparallel in their basal half, slightly depressed on the disc below the base, sharply

margined, the humeri rounded; finely, rugulosely punctate, with indications of obsolete strie on

the disc.

Length 3, breadth 17 millim.

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

4N2

644 SERRICORNIA.

Two examples. A very small species, resembling P. montana in colour ; but differing

from that insect in its much smaller size and less elongate shape, slender testaceous

antenne, duller surface, shorter, paler, pruinose pubescence, .&c. The pubescence is

sufficiently close to almost hide the dark ground-colour.

30. Ptilodactyla rugulosa. (Tab. XXVII. fig. 18, ¢ .)

Elongate, flattened above, subopaque, thickly clothed with short, fine, silky, yellowish-cinereous pubescence ;

rufo-fuscous, the shoulders of the elytra and the front and sides of the prothorax usually reddish, the under

surface obscure ferruginous or ferrugineo-testaceous, the antenn black, with the two basal joints obscure

testaceous and the apical one flavo-testaceous, the legs testaceous or obscure testaceous; the entire upper

surface densely, rugulosely punctate, the under surface very finely rugulose. Head broad, the eyes large

and prominent in the male, smaller in the female ; antennee very elongate, slender, the joints 4-10 each with

a moderately long ramus (the rami increasing in length outwards) in the male and serrate in the female.

Prothorax transverse, flattened on the disc in front, sharply margined at the sides and apex and explanate

at the sides behind, the latter rapidly converging from a little before the base to the apex and rounded

and slightly converging behind, the hind angles sharp; the base trisinuate and very feebly denticulate.

Scutellum moderately large, feebly notched in the centre in front, and sometimes with indications of a

smooth median line. Elytra elongate, distinctly wider than the prothorax, parallel in their basal half,

narrowly margined at the sides, the apices slightly produced, the humeri rounded; with indications of

obsolete strie, and with a row of rather coarse punctures within the margin. Fifth ventral segment

somewhat deeply emarginate at the apex inthe male. Legs elongate. Tarsal claws rectangularly dilated

in both sexes.

Length 7-73, breadth 27-3 millim. (d Q.)

Hab. Mexico, Jalapa (Hége).

Sixteen examples. Easily distinguished by its dull, rugulose surface, and elongate,

parallel shape. The anterior portion of the disc of the thorax is flattened, the sides

being moderately declivous in front and explanate behind.

31. Ptilodactyla varicornis.

Moderately elongate, flattened above, opaque ; thickly clothed with fine greyish pubescence, that on the disc

of the elytra sometimes fuscous (leaving the suture and sides paler) ; brownish-black, fuscous, or brown,

the lateral margins, base, and apex of the prothorax and the suture of the elytra often reddish, the

antenne black, with the two basal joints reddish and the tenth and eleventh flavo-testaceous, the legs

testaceous, the tibia sometimes darker; the entire upper surface densely, rugulosely punctate, the under

surface very finely rugulose. Head broad, the eyes large and prominent in the male, smaller in the female ;

antenne moderately long, slender, the joints 4-10 each with a ramus (the outer ones slightly longer than

the joints themselves) in the male and serrate in the female. Prothorax transverse, flattened on the disc

in front, sharply margined at the sides and apex, and explanate at the sides behind, the latter rapidly

converging from a little before the base to the apex and rounded and slightly converging behind, the hind

angles sharp; the base trisinuate and very feebly denticulate. Scutellum with a shallow notch in the centre

in front and indications of a smooth impressed median line. Elytra moderately long, very little wider

than the widest part of the prothorax, subparallel in their basal half, narrowly margined at the sides,

the apices slightly produced, the humeri rounded ; obsoletely punctate-striate, the interstices feebly raised,

and with a row of moderately coarse punctures within the margin. Fifth ventral segment emarginate at

the apex in the male.

Length 5-6, breadth 23-23 millim. (d Q.)

Hab. Panama, Bugaba, David, and Caldera in Chiriqui (Champion).

PTILODACTYLA 645

Eleven examples. Smaller and less elongate than P. rugulosa, the antenne with

the apical two joints flavo-testaceous, the elytra more distinctly striate, the upper

surface more opaque.

32. Ptilodactyla punctatissima.

Moderately elongate, flattened above, subopaque; thickly clothed with fine greyish pubescence, that on the

disc of the elytra usually fuscous (leaving the suture and sides paler); brownish-black, fuscous, or rufo-

fuscous, the suture and sides of the elytra and the entire head and prothorax sometimes ferruginous, the

antenne black, with the two basal joints obscure testaceous and the apical one flavo-testaceous, the legs

testaceous, the tibiee sometimes infuscate or piceous ; the entire upper surface densely, rugulosely punctate,

the under surface very finely rugulose. Head broad, the eyes large and prominent in the male, smaller

in the female; antenne elongate, slender, the joints 4-10 each with a moderately long ramus in the male

and serrate in the female. Prothorax transverse, feebly convex in front, sharply margined at the sides

and apex and explanate at the sides behind, the latter rapidly converging from a little before the base to

the apex and rounded and slightly converging behind, the hind angles sharp ; the base bisinuate, finely

denticulate. Scutellum with a shallow notch in the centre in front and indications of a smooth impressed

median line. Elytra moderately long, very little wider than the widest part of the prothorax, subparallel

in their basal half, flattened on the dise towards the base, sharply margined at the sides, the apices some-

what produced ; obsoletely punctate-striate, the interstices feebly convex, and with a row of moderately

coarse punctures within the margin. Fifth ventral segment deeply emarginate at the apex in the male.

Tarsal claws rectangularly dilated in both sexes.

Length 6-7, breadth 23-24 millim. (d @.)

Hab. Mexico, Chinautla, Santecomapan (Sallé), Teapa in Tabasco (H. H. Smith);

GvuatTEMALA, Teleman in Vera Paz (Champion).

Twelve species, eight of which are from Teapa. Smaller, less elongate, and more

convex than P. rugulosa, the elytra more distinctly striate, the thorax less flattened in

front. Less opaque and distinctly more convex than P. varicornis, the antenne with

the apical joint only (and in the male the tip of the last ramus also) flavo-testaceous.

The densely rugulose surface and the form of the claws in the male distinguish the

present species from P. meaicana and its allies.

88. Ptilodactyla integra.

9. Oblong-elliptic, rather narrow, a little flattened above, shining, thickly clothed with pallid pubescence ;

testaceous, with the elytra suffused with piceous—leaving a humeral patch, the suture and sides, and

the apex indeterminately, of the ground-colour—and the under surtace similarly coloured, or entirely

testaceous, the antenne and legs testaceous. Head rugulosely punctured, the eyes moderately

large; antenne long and slender, feebly serrate. Prothorax short, feebly convex in front, the sides

rounded and converging from a little before the base to the apex, the hind angles acute; the base

trisinuate, smooth; the surface thickly, finely punctate. Scutellum transversely cordate, flat, unemargi-

nate in front, closely punctured. Elytra moderately long, wider than the prothorax, acutely margined

at the sides, and a little produced at the apex, the humeri rounded; very distinctly and rather coarsely

punctate-striate to near the apex, the interstices slightly raised and rugulosely punctured.

Length 34-33, breadth 14-14 milim.

Hab. Mexico, Toxpam (Sallé); Guatemaua, Senahu in Vera Paz (Champion).

Two examples, differing in size and colour, both from the Atlantic slope. Closely

allied to P. breviscutum, from the Pacific slope of Guatemala; but differing from it in

646 SERRICORNIA.

the very distinctly punctate-striate elytra (with the punctures of the strie much coarser

than those of the interstices), the more finely punctured thorax, and the more convex

and more parallel general shape. The description is chiefly taken from the Senahu

specimen, the other being mutilated.

34. Ptilodactyla scutata.

Elliptic, short, convex, shining, clothed with long fulvo-cinereous pubescence ; piceous or reddish-brown,

the head and disc of the prothorax more or less black, the antenne piceous or black, brownish at the tip,

the two basal joints reddish, the legs obscure ferruginous, the tarsi testaceous. Head sparsely punctured,

with the interspaces very finely rugulose, the eyes large and rather prominent; antenne long and slender,

the joints 4-10 each with a long ramus in the male and serrate in the female. Prothorax transverse,

sharply margined at the sides and apex, feebly convex in front, the sides rounded and converging almost

from the base, the hind angles sharp; the base bisinuate, truncate in the middle, smooth; the surface

thickly and somewhat coarsely granulate-punctate. Scutellum moderately large, flat, transversely cordate,

unemarginate in front. Elytra short, wider than the prothorax, feebly rounded and sharply margined at

the sides, slightly produced at the apex, the humeri rounded; thickly, finely, confusedly punctate, with

a row of rather coarse punctures within the margin and indications of a faint sutural stria. Fifth ventral

segment emarginate at the apex in the male. Tarsal claws rectangularly dilated in both sexes.

Length 43-42, breadth 2-21 millim. (¢ Q.)

Hab. Panama, Volcan de Chiriqui 2000 to 3000 feet (Champion).

Three males and one female. This small species differs from nearly all the others

here described in the strongly transverse, flat, unemarginate scutellum.

35. Ptilodactyla breviscutum.

Q. Oblong-elliptic, narrow, flattened above,”shining, finely pubescent ; fusco-ferruginous, the eyes black, the

antenne and legs testaceous. Head closely punctured, the eyes large; antenne long and slender, serrate

from the fourth joint. Prothorax short, moderately convex in front, the sides rounded and converging

almost from the base, the hind angles acute; the base trisinuate, smooth; the surface thickly granulate-

punctate. Scutellum short, strongly transverse, closely punctate, without trace of emargination in front.

Elytra moderately long, forming almost a continuous outline with the prothorax, and at the middle much

wider than it, acutely margined at the sides; thickly, finely punctate, and also obsoletely striate on

the disc.

Length 3,,, breadth 14 millim.

Hab. GuatemMata, Zapote (Champion).

One example. This small species is of about the same shape as P. marginata, but

differs from it in the unemarginate scutellum, this last-mentioned character bringing

it near P. scutata, which is a more convex, broader insect, with longer pubescence, less

broadly margined elytra, blackish antenne, &c.

36. Ptilodactyla dilaticollis. (Tab. XXVII. figg. 19, ¢; 19a, antenna.)

3. Moderately elongate, rather convex, somewhat flattened above, shining ; very sparsely clothed with rather

long, fine, decumbent, brownish hairs, the elytra with longer scattered erect hairs intermixed ; nigro-

piceous, the head, prothorax, and scutellum, the margins and suture of the elytra, and the abdomen in

great part rufo-piceous. Head moderately broad, finely rugulose, the eyes very large and prominent;

antenne slender, elongate, joints 4-10 each with a long ramus, the outer rami becoming very elongate.

PTILODACTYLA. 647

Prothorax short and very broad, convex on the disc, appearing broadly explanate at the sides, widest

before the middle; the sides acutely margined, abruptly, arcuately converging and strongly declivous in

front, and slightly sinuate before the base ; the hind angles acutely produced behind ; the base trisinuate,

denticulate, and with a prominent projecting tooth in the centre ; the surface somewhat thickly and finely

granulate-punctate. Scutellum small, rugulose, feebly notched in the centre in front. Elytra moderately

long, narrower at the base than the prothorax, widening to about the middle and arcuately narrowing

thence to the apex, the dise flattened towards the base and declivous from about the middle to the apex,

the sides broadly and acutely margined, the apices somewhat produced, the humeri raised and acutely

rectangnlar; the surface sparsely, minutely, confusedly punctate, and with a deep sutural stria extending

from the base to about the middle. Fifth ventral segment feebly emarginate at the apex. Tarsal claws

with an acute, long, curved tooth.

Length 53-64, breadth 24-3 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Two examples. Differs from all the other species of the genus described here in the

peculiar form of the thorax and the very prominent acute humeri. The general facies

is very like that of the genus Lycoperdina in the Endomychide.

37. Ptilodactyla denticollis. (Tab. XXVII. fig. 20, 2.)

Q@. Moderately elongate, broad, flattened above, shining; thickly clothed with short brown pubescence ;

pitchy-black, the mouth-parts, scutellum, the anterior margin and hind angles of the prothorax, and the

abdomen in part, reddish, the antenne reddish-brown, the legs fusco-ferruginous. Head broad, densely,

rugulosely punctate, the eyes large; antennee elongate, slender, acutely serrate. Prothorax very broad,

short, flattened on the disc, feebly convex in front, acutely margined laterally and at the apex; the sides

explanate behind, strongly and angularly dilated before the base, obliquely converging thence to the apex,

and abruptly constricted immediately before the acute posteriorly produced hind angles; the base tri-

sinuate, finely denticulate, and with a projecting tooth in the centre; the surface thickly, finely punctate.

Scutellum large, very finely rugulose, and with a moderately deep notch in the centre in front. Elytra

rather long, in front slightly wider than the base of the prothorax, and at the middle about as wide as

the dilated portion of the latter, narrowly margined at the sides, subparallel to a little beyond the middle

and somewhat rapidly narrowing thence to the apex, the apices slightly produced, the humeri rounded ;

finely punctate-striate to near the apex, the striw almost obsolete, the interstices flat and very finely,

rugulosely punctate.

Length 94, breadth 4 millim.

Hab. Costa Rica, Volcan de Irazu 6000 feet (Rogers).

One example only, a female, of this remarkable species has been received. It may

be at once identified by the very prominent angular dilatation of the sides of the thorax

behind, the dilated portions projecting laterally to far beyond the acute hind angles.

The notch in the scutellum is not very deep.

38. Ptilodactyla sulcata.

Elliptic, rather elongate, convex, shining, thickly clothed with short pale brownish pubescence ; piceous above,

obscure ferruginous beneath, the antenne and legs ferrugineo-testaceous. Head rugulosely punctured,

the eyes moderately large; antenne elongate, slender, the joints 4-10 each with a long ramus in the

male and serrate in the female. Prothorax short, transversely convex in front, sharply margined at the

sides, the sides rounded and rapidly converging from the base forwards, the hind angles acute; the base

trisinuate, denticulate, and with a projecting tooth in the centre; the surface thickly and rather coarsely

granulate-punctate. Scutellum thickly punctured, very deeply notched in the centre in front, and with a

648 SERRICORNIA.

broad, deep, median channel. Elytra moderately long, at the middle much wider than the prothorax, a

little narrowed at the base and there forming almost a continuous outline with it, narrowly margined at

the sides; obsoletely seriate-punctate to near the apex, the interstices flat and thickly punctured. Fifth

ventral segment narrowly and deeply marginate at the apex in the male. Tarsal claws dilated to beyond

the middle and with an acute curved tooth in the male, and rectangularly dilated in the female,

Length 7-73, breadth 31,-3} millim. (d 9.)

Hab. Mexico, Juquila in Oaxaca (Sallé).

One male and three females. Very like P. convexa and P. confinis, near which it

would be better placed ; but differing from them in having the scutellum still more

deeply sulcate, and the dilated portion of the claws longer, and terminating in a curved

tooth, in the male.

39. Ptilodactyla pruinosa.

Moderately elongate, narrow (¢), broader (2 ), somewhat flattened above, shining, thickly clothed with short

greyish pubescence; reddish-brown above, obscure ferruginous beneath, the antenne piceous or brown,

with the two basal joints reddish, the legs testaceous. Head rugulosely punctured, the eyes large ; antenne

very elongate, slender, the joints 4-10 each with a moderately long ramus in the male and serrate in the

female. Prothorax very short, transversely convex in front, sharply margined at the sides, the latter

rounded and converging almost from the base, the hind angles sharp; the base trisinuate, strongly

denticulate, and with a projecting tooth in the centre; the surface thickly, finely punctate. Scutellum

thickly punctured, deeply notched in the centre in front, and narrowly sulcate thence to near the apex.

Elytra rather elongate, not or very little wider than the prothorax, sharply margined at the sides, sub-

parallel in their basal half and produced at the apex, the humeri obtusely rectangular; thickly, finely

punctate, usually with indications of faint striz, the sutural one more deeply impressed. Fifth ventral

segment broadly and shallowly emarginate at the apex in the male. Tarsal claws with an acute tooth in

the male and rectangularly dilated in the female.

Length 5-53, breadth 2-23 millim. (¢ 9.)

Hab. Mexico, Toxpam, near Cordova (Sai/é).

' Two males and two females. In this small, rather elongate species the humeri are

more angular than in most of the allied forms, and the antenne are much darker in

colour than the legs. It closely resembles P. convexicollis, but is much more elongate,

and has more angular humeri (in this respect agreeing with P. gibdicollis), differently

coloured antenne, more sharply toothed claws in the male, &c. P. pruinosa is very

like P. heterophya, Kirsch, from Peru, but it has a smoother thorax, with the base more

strongly denticulate, the antenne darker, the elytra longer, &c.

40. Ptilodactyla caudata. (Tab. XXVII. figg. 22, ¢; 22a, maxilla and

maxillary palpus; 22 0, fifth ventral segment; 22, ditto, in profile; 22d, genitalia.)

3. Moderately elongate, convex, shining; sparsely clothed with short, fine, greyish pubescence; nigro-

piceous, the antennee testaceous, becoming darker towards the base, the two basal joints sometimes

reddish, the legs piceous or brownish, with the tarsi testaceous at the tip. Head thickly punctured, the

eyes very large and prominent ; antenne very elongate, slender, joints 4-10 each with a long ramus, all

the rami longer than the joints themselves. Prothorax short, transversely convex in front, sharply

margined at the sides, the latter rounded and rapidly converging from a little before the base to the apex,

the hind angles acute; the base trisinuate, denticulate, and with a projecting tooth in the centre ; the

surface very finely, rather sparsely punctate, the punctures placed upon distinct granules towards the sides

PTILODACTYLA. 649

behind. Scutellum large, minutely punctured, notched in the centre in front. Elytra elongate, very little

wider than the base of the prothorax, acutely margined at the sides, subparallel in their basal half, and

strongly and rather broadly produced at the apex, the apices separately rounded and dehiscent at the

suture, the humeri rounded ; obsoletely and very finely seriate-punctate, the row of punctures next the

suture placed in a shallow stria, and with a row of coarse punctures within the margin, the interstices

flat and sparsely, minutely punctate. Beneath sparsely, finely punctate, the propleure closely granulate-

punctate. Fifth ventral segment broadly and deeply emarginate at the apex and broadly depressed in the

middle behind, the depression limited on either side by a strongly raised oblique ridge which is fringed

with long golden hairs. Tarsal claws with an acute curved tooth.

@. Antenne serrate; elytra with the apices moderately and rather sharply produced ; tarsal claws rectangu-

larly dilated.

Length 6-8}, breadth 24-33 millim.

Hab. Guatemata, Cerro Zunil (Champion); Nicaracua, Chontales (Belt); Panama,

Volcan de Chiriqui (Champion).

Two males and one female from Nicaragua, a male from Chiriqui, and a female from

Guatemala. Differs from all the other Central-American species in the caudate elytra

of the males, and the extraordinary form of the fifth ventral segment in this sex. The

females may not belong to the same species.

Three others of the same sex, from Chiriqui, all in a mutilated condition, differ from

these in having the elytra more rounded and less produced at the apex, and the sides

more broadly margined. A male from Chontales is figured.

41. Ptilodactyla tropicalis.

Oval, broad or moderately broad, convex, slightly flattened above, shining; sparsely clothed with long,

decumbent, brownish hairs; black, piceous, or rufo-castaneous, the antenne and legs testaceous or

obscure testaceous. Head broad, sparsely granulate-punctate, the eyes very large and prominent;

antenne long and slender, the joints 4-10 each with a moderately long ramus in the male and serrate in

the female. Prothorax short, transversely convex in front, acutely margined laterally and at the apex,

slightly explanate at the sides behind, the sides rounded and rapidly converging from the base, the hind

angles acute; the base trisinuate, denticulate, and with a projecting tooth in the centre; the surface

sparsely and conspicuously granulate-punctate. Scutellum sparsely punctured, deeply notched in the

centre in front. Elytra moderately long, broader than the prothorax, slightly rounded and broadly

margined at the sides, gradually narrowing from a little below the base, somewhat flattened on the disc

anteriorly, the apices rather sharp, the humeri rounded ; distinctly seriate-punctate—the punctures placed

in almost obsolete striz, becoming coarser outwards and shallower towards the apex,—and also with a

row of coarse punctures within the margin, the interstices flat, finely and rather sparsely punctate.

Fifth ventral segment feebly emarginate at the apex in the male. Tarsal claws with an acute, curved

tooth in the male, rectangularly dilated in the female.

Length 53-73, breadth 23-33 millim. (d 9.)

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith); Guatemata, Panzos and San

Juan in Vera Paz (Champion); Nicaragua, Chontales (Belt) ; Panama, Bugaba, Caldera,

Volcan de Chiriqui (Champion).

Found in numbers in Chiriqui, rarely elsewhere. Varies greatly in size and colour,

the males often being much smaller and more parallel than the females. This species

may be distinguished from the allied forms by the conspicuous scattered granules on

the thorax (resembling coarse punctures, when viewed under an ordinary jens). The

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, May 1897. 40

650 SERRICORNIA.

seriate punctures on the elytra are usually much coarser than those of the interstices,

and in some specimens they are placed in shallow strie. In one female example

from Chiriqui, evidently belonging to the same species, the punctures on the disc. of

the thorax are exceedingly fine and not placed upon raised granules.

v 42, Ptilodactyla mexicana.

Oval, broad or moderately broad, feebly convex, flattened above, shining ; somewhat thickly clothed with long

decumbent, brownish hairs; black, piceous, or reddish-brown, the antenne and legs obscure testaceous.

Head thickly granulate-punctate, the eyes large and prominent; antenne long and slender, the joints

4-10 each with a moderately long ramus in the male and narrow and acutely serrate in the female.

Prothorax short, transversely convex in front, acutely margined laterally and at the apex, explanate at

the sides behind, the sides rounded and rapidly converging from the base, the hind angles acute; the

base trisinuate, finely denticulate, and with a projecting tooth in the centre; the surface thickly and

finely granulate-punctate. Scutellum thickly punctured, notched in the centre in front. Elytra mode-

rately long, broader than the prothorax, slightly rounded and broadly margined at the sides, gradually

narrowing from a little below the base, flattened on the disc, the apices rather sharp, the humeri rounded;

finely and indistinctly seriate-punctate, the punctures not or very little coarser than those of the inter-

stices and sometimes obliterated on the disc, and also with a row of coarse punctures within the margin,

the interstices flat, finely and somewhat thickly punctate, slightly rugulose in some specimens. Fifth

ventral segment feebly emarginate at the apex in the male. Tarsal claws with an acute curved tooth

in the male and rectangularly dilated in the female.

Length 6-9, breadth 23-4 millim. (¢ 9.)

Hab. Mexico, San Andres Tuxtla, Toxpam, and Cosamaloapam in Vera Cruz (Sallé),

“Talapa (Hoge).

Sent in plenty from Eastern Mexico. This insect is very closely allied to P. tropicalis,

from which it differs in having the body more flattened above, the thorax more closely

and less conspicuously granulate-punctate, and the seriate punctures on the elytra

much less distinct. In one specimen the scutellum is very feebly notched in front.

Some of the specimens in the Sallé collection are labelled with the MS. name

Ptilodactyla mexicana, Chevr.

43, Ptilodactyla opima.

Oblong-elliptic, broad, robust, shining; thickly clothed with short, fine, decumbent brownish pubescence ;

pitchy-black, piceous, or obscure reddish-brown, the antenne and legs testaceous or fusco-testaceous.

Head broad, thickly punctate, the eyes large and prominent; antenne long and slender, the joints 4-10

each with a moderately long ramus in the male (the outer rami slightly longer than the joints themselves)

and serrate in the female. Prothorax short, transversely convex in front, sharply margined at the sides,

the latter slightly explanate behind, rapidly converging from about the basal third forwards, and sub-

parallel towards the base, the hind angles acute; the base trisinuate, denticulate, and with a projecting

tooth in the centre ; the surface thickly, finely punctate. Scutellum large, minutely punctured, notched

in the centre in front, the anterior margin sometimes finely denticulate. Elytra moderately long, acutely

margined at the sides, a little produced at the apex, the humeri rounded ; obsoletely seriate-punctate,

the punctures usually becoming more distinct towards the sides, and along the suture at the base, where

they are placed in a deep stria, and with a row of coarse punctures within the margin, the interstices

flat, thickly punctate, rugulose in one specimen. Fifth ventral segment deeply arcuate-emarginate in

the male. Tarsal claws with an acute curved tooth in the male and rectangularly dilated in the female.

PTILODACTYLA. 651

Var. The clytra more distinctly seriate-punctate, the punctures placed in shallow strie in one specimen, the

outer interstices slightly raised.

Length 73-84, breadth 34-4 millim. (¢ 9.)

Hab. Guatemata, San Isidro (Champion); Panama, Bugaba, Caldera, Volcan de __

Chiriqui (Champion).

Found in numbers at Caldera. The variety, represented by four specimens, is from

the Volcan de Chiriqui. From Guatemala a single female example only has been

obtained. Allied to P. mexicana, but more robust and less flattened above, the

scutellum larger and usually not so deeply notched in the centre in front.

P. opima is also very like P. vilis, Kirsch, from Peru, but it is more robust and has

a smoother thorax, the basal margin of the latter being more finely denticulate.

44, Ptilodactyla denticulata, (Tab. XXVII. fig. 23, fifth ventral seg-

ment, 3.)

Moderately elongate, rather narrow and somewhat fusiform ( ¢ ), broader and subparallel ( Q ), flattened above,

shining, thickly clothed with rather coarse, short, brownish pubescence ; piceous or reddish-brown, the

antennee and legs testaceous or brownish, the femora sometimes paler. Head densely punctured, the

eyes large; antenne long and slender, the joints 4-10 each with a rather long ramus in the male and

serrate in the female. Prothorax short, moderately convex in front, sharply margined at the sides and

apex and slightly explanate at the sides behind, the sides rounded and rapidly converging from a little

before the base to the apex, the hind angles acute; the base trisinuate, denticulate throughout; the

surface coarsely granulate-punctate. Scutellum closely punctured, notched in the centre in front. Elytra

moderately long, subparallel in their basal half in the female, usually widest at the shoulders in the male,

wider than the prothorax, sharply margined at the sides, rapidly narrowing towards the apex, and with

the apices a little produced, the humeri rounded; finely and shallowly punctate-striate to near the

apex, the interstices flat and rugulosely punctate. Fifth ventral segment in the male abruptly and

very deeply emarginate at the apex, and slightly plicate on either side of this, the two plice meeting

along the median line and enclosing a triangular space in front of the emargination, and in some speci-

mens extending forwards as a single plica to the base, and with a space on either side of this very finely

longitudinally wrinkled. Tarsal claws with an acute curved tooth in the male and rectangularly dilated

in the female.

Length 63-73, breadth 24-3 millim. (¢ 2.)

Hab. Mexico, Puebla, Toxpam, Cordova, Juquila (Sal/é), Orizaba (Hl. H. Smith) ;

GUATEMALA, near the city (Salvin), Duentas and Capetillo (Champion); Costa Rica,

R. Sucio, Caché, and Volcan de Irazu (Rogers).

Found in numbers at the Volcan de Irazu, sparingly elsewhere. This is one of

several extremely closely allied Central-American species which can only be distinguished

with certainty by the abdominal male-characters, these being very characteristic in

P. denticulata. The males are somewhat fusiform in shape.

45. Ptilodactyla squinoctialis. |

Elongate, rather narrow (¢), broader (@), flattened above, shining, thickly clothed with short brownish

pubescence ; piceous or rufo-castaneous, the humeri sometimes with a reddish patch, the legs and

antennz brownish or testaceous. Head rugulose, the eyes large; antennez elongate, slender, the joints

4-10 each with a long ramus in the male and serrate in the female. Prothorax short, moderately

402

652 SERRICORNIA.

convex in front, sharply margined at the sides and apex, and slightly explanate at the sides behind, the

latter rounded and rapidly converging from a little before the base to the apex, the hind angles acute;

the base trisinuate, denticulate ; the surface closely, rather coarsely granulate-punctate. Scutellum

closely punctured, with a short notch in the centre in front. Elytra moderately elongate, wider than the

prothorax, parallel in their basal half, sharply margined at the sides, the humeri rounded; distinctly

punctate-striate, the interstices flat and rugulosely punctured. Fifth ventral segment in the male

narrowly and very deeply emarginate at the apex, and with a raised space on either side of the emargi-

nation, which is fringed with hairs within, the segment appearing depressed in the middle behind. Tarsal

claws with an acute curved tooth in the male and rectangularly dilated in the female.

Length 8-93, breadth 3-4 millim. (d 9.)

Hab. Costa Rica, Volcan de Ivazu (Rogers); Panama, Volcan de Chiriqui

(Champion).

One male and two females from Costa Rica and a female from Chiriqui, the latter

larger and more robust than the others and having the scutellum denticulate in front.

This insect is very like P. denticulata, of which at first sight it would appear to be

nothing more than a large variety, but the form of the fifth ventral segment of the

male is quite different.

46. Ptilodactyla serrata.

Moderately elongate, narrow, flattened above, shining, thickly clothed with rather long pallid pubescence ;

fusco-testaceous, the antennsz and legs testaceous. Head densely punctured, the eyes large; antenne

elongate, slender, the joints 4-10 each with a moderately long ramus in the male and feebly serrate

in the female. Prothorax short, moderately convex in front, the sides slightly explanate behind,

sharply margined, and rounded and rapidly converging from about the basal third forwards, the hind

angles acute; the base bisinuate, the entire margin strongly denticulate ; the surface closely granulate-

punctate. Scutellum rugulosely punctured, notched in the centre in front, Elytra elongate, subparallel

in their basal half, wider than the prothorax, sharply margined at the sides, the apices rather sharp, the

humeri rounded ; obsoletely punctate-striate, the interstices rugulosely punctured. Fifth ventral segment

arcuate-emarginate at the apex in the male. Tarsal claws with an acute curved tooth in the male and

rectangularly dilated in the female.

Length 53-6, breadth 21-23 millim. (¢ 9.)

Hab. Costa Rica, Caché (fogers) ; Panama, Volcan de Chiriqui 3000 feet (Champion).

A male example from each locality. We also possess a mutilated female specimen

labelled as from Guatemala, but this locality requires confirmation. Smaller and more

depressed than P. denticulata, the entire basal margin of the thorax very distinctly

denticulate, the fifth ventral segment very differently formed in the male. The

denticulation of the base of the thorax is unusually distinct, a character separating the

species from most of the allied forms.

47. Ptilodactyla germana.

Oblong-elliptic, flattened above, shining, thickly clothed with pallid pubescence; obscure ferruginous, with the

head, the disc of the prothorax, and the dise of the elytra piceous, the elytra becoming paler towards the

apex, the under surface in great part ferruginous, the antenne and legs obscure testaceous. Head rugulosely

punctured, the eyes moderately large; antenne very long and slender, the joints 4-10 each with a

moderately long ramus in the male and acutely serrate in the female. Prothorax transverse, rather

PTILODACTYLA. 653

convex in front, sharply margined at the sides and apex, and slightly explanate at the sides behind, the

sides rounded and converging from the base, the hind angles acute; the base trisinuate, finely denticulate

at the sides and in the middle, and with a short projecting tooth in the centre; the surface thickly

granulate-punctate. Scutellum rugulosely punctured, notched in the centre in front. Elytra moderately

long, wider than the prothorax, sharply margined at the sides, the humeri rounded ; obsoletely seriate-

punctate or very finely punctate-striate, and with a row of coarse punctures within the margin, the

interstices rugulosely punctate. Fifth ventral segment shallowly arcuate-emarginate at the apex in the

male. Tarsal claws with a curved tooth in the male and rectangularly dilated in the female.

Length 53-6, breadth 23 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).

One pair. A second male from the same locality probably belongs here; it has,

however, the apices of the elytra sharper and slightly produced. This species is very

like P. serrata, but differs from it in the much finer and incomplete denticulation of

the basal margin of the thorax. From P. denticulata it may be known by its less

elongate shape and the different form of the last ventral segment in the male; from

P. parallela by the fine but distinct denticulation of the greater part of the base of

the thorax; and from P. granulicollis by its larger size, broader form, less distinctly

striate elytra, &c. In one specimen the fine seriate punctures on the elytra are

obliterated beyond the middle.

48. Ptilodactyla subparallela.

3. Moderately elongate, rather depressed, shining, thickly clothed with yellowish-cinereous pubescence ;

pitchy-black or piceous, the margins of the prothorax, the scutellum, and the suture and shoulders of the

elytra indeterminately reddish in one specimen, the antennz piceous or brownish, the legs obscure

testaceous. Head rugulosely punctured, the eyes moderately large; antenne long and slender, the joints

4-10 each with a moderately long ramus. Prothorax short, feebly convex in front, sharply margined at

the sides and apex, the sides rounded and rapidly converging from the basal third forwards; the base

trisinuate, finely denticulate; the surface thickly granulate-punctate. Scutellum rugulose, notched in

the centre in front. Elytra elongate, subparallel in their basal half, wider than the prothorax, sharply

margined at the sides, the humeri rounded; finely, rugulosely punctate, and in one specimen obsoletely

striate on the disc. Fifth ventral segment feebly arcuate-emarginate at the apex. Tarsal claws with an

acute curved tooth.

Length 54-6, breadth 21-24 millim.

Hab. Mexico, Jalapa (Hoge).

Two males. Very like P. denticulata, but more depressed and more parallel, the

fifth ventral segment very differently formed in the male.

From P. serrata, which it resembles in shape, it may be distinguished by the more

sinuate and less strongly denticulate basal margin of the thorax.

49, Ptilodactyla forcipata.

Moderately elongate, flattened above, shining, thickly clothed with rather long yellowish-cinereous pubescence ;

rufo-fuscous or obscure rufo-testaceous, the legs and antenne testaceous or obscure testaceous. Head

rugulosely punctured, the eyes large ; antennz long and slender, the joints 4-10 each with a moderately

long ramus in the male and serrate in the female. Prothorax short, convex, and greatly narrowed in

front, acutely margined at the sides and apex, the sides rounded behind and rapidly converging from

654 SERRICORNIA.

about the basal third forwards, the hind angles acute; the base trisinuate, finely denticulate, and with a

short projecting tooth in the centre ; the surface closely granulate-punctate. Scutellum rugulosely punc-

tured, deeply notched in the centre in front. Elytra moderately long, a little wider than the prothorax,

sharply margined at the sides, narrowing from the middle, and somewhat acutely produced at the apex,

the humeri rounded ; shallowly but distinctly punctate-striate to near the apex, the interstices thickly,

rugulosely punctured, granulate towards the base in some specimens. Fifth ventral segment broadly and

very deeply truncate-emarginate at the apex, and broadly depressed along the middle in front of the

emargination. Tarsal claws with an acute curved tooth in the male and rectangularly dilated in the

female.

Length 44-5,%,, breadth 1,®,-23 millim. (d 2.)

Hab. Mexico, Omilteme, Xucumanatlan, and Chilpancingo in Guerrero, Cuernavaca

in Morelos (H. H. Smith). |

Found in numbers in Guerrero. This is one of several very closely allied Central-

American species, amongst which it may chiefly be known by its somewhat conical,

acutely margined, granulate thorax, the deeply notched scutellum, the sharply

margined, rather acuminate, punctate-striate elytra, and the form of the fifth ventral

segment in the male. The emargination of this segment is so deep in this sex that

the lateral portions project like a pair of forceps, these being visible from above.

P. forcipata resembles P. denticulata in shape, but it is less elongate and much

smaller. Some of the males have the third joint of the antenne considerably shorter

than the fourth.

50. Ptilodactyla granulicollis.

Moderately elongate, flattened above, shining, thickly pubescent; rufo-fuscous or obscure rufo-testaceous, the

legs and antenne testaceous. Head rugulosely punctured, the eyes large; antennz long and slender, the

joints 4-10 each with a moderately long ramus in the male and serrate in the female. Prothorax short,

convex and much narrowed in front, sharply margined at the sides and apex, the sides rounded behind

and rapidly converging from about the basal third forwards; the base trisinuate, finely denticulate, and

with a short projecting tooth in the centre; the surface thickly granulate-punctate. Scutellum rugulosely

punctured, deeply notched in the centre in front. LElytra finely punctate-striate, the interstices rugulosely

punctured. Fifth ventral segment broadly and not very deeply arcuate-emarginate at the apex in the

male.

Length 3,%,—53, breadth 12-22 millim. (¢ 9.)

Hab. GuatEMALa, San Gerénimo and Capetillo (Champion).

Found in some numbers at Capetillo. Extremely closely allied to P. forcipata, and

only separable from it by the different form of the fifth ventral segment in the males.

This character, however, is perfectly constant in the numerous males of both species

examined. Two males from Vera Cruz (H. H. Smith) and a female from Cordova,

Mexico (Hége), probably belong here: the males have slightly longer elytra than those

from Guatemala and the female is considerably larger and broader.

P. granulicollis may prove to be inseparable from P. angustata, Horn, from Florida,

specimens of which are not obtainable for comparison. |

PTILODACTYLA. 655

51. Ptilodactyla forticornis.

3d. Moderately elongate, narrow, rather convex, shining, thickly clothed with coarse brownish pubescence ;

pitchy-black, the prothorax reddish-brown beneath, the antennz piceous, the rami paler, the legs and

palpi testaceous, the tibia darker. Head densely punctured, the eyes moderately large ; antenne mode-

rately elongate, stout, the joints 4-10 each with a stout ramus, the outer rami very little longer than the

joints themselves, joint 3 stout, triangular, slightly shorter than 4. Prothorax broader than long, convex

in front, sharply margined at the sides and apex, the sides parallel behind and arcuately converging in

front, the hind angles acute; the base trisinuate, finely denticulate, and with a short projecting tooth in

the centre ; the surface closely and somewhat coarsely granulate-punctate. Scutellum sparsely punctured,

deeply notched in the centre in front. FElytra elongate, distinctly wider than the prothorax, parallel in

their basal half, and conjointly rounded at the apex, the humeri rounded; thickly, finely punctate, and

obsoletely striate. Fifth ventral sezment emarginate at the apex. Legs stout. Tarsal claws with an

acute curved tooth.

Length 4%, breadth nearly 2 millim.

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One example. A small, narrow, elongate species, with unusually stout legs and

antenne and coarse pubescence. The antennal rami are very stout and comparatively

short. The form of the antenne and claws distinguishes it at once from P. gracilis, &c.

52. Ptilodactyla pallescens.

Oval, depressed, shining, thickly pubescent, testaceous. Head rugulosely punctured, the eyes large; antenne

very long and slender, the joints 4-10 each with a moderately long ramus in the male and serrate in the

female, 3 a little shorter than 4 in the male. Prothorax short, feebly convex and greatly narrowed in

front, sharply margined at the sides and apex, and explanate at the sides behind, the sides rounded and

rapidly converging almost from the base, the hind angles sharp ; the base trisinuate, smooth ; the surface

thickly punctate. Scutellum rugulosely punctured, with a shallow notch in the centre in front. Elytra

moderately long, forming almost a continuous outline with the prothorax, and at the middle very much

wider than it, rounded and broadly margined at the sides; obsoletely punctate-striate to near the apex, the

interstices thickly, rugulosely punctate. Tarsal claws with an acute curved tooth in the male and

rectangularly dilated in the female.

Length 53-52, breadth 23-23 millim. (¢ @.)

Hab. Costa Rica, Volcan de Irazu 6000 feet (Rogers).

One pair. This species somewhat resembles P. deleta, but it is much larger, more

depressed, and oval in shape, and the sides of the thorax are explanate behind.

53. Ptilodactyla parallela.

Oblong, narrow (d ), broader ( @ ), flattened above, shining, thickly clothed with short, fine brownish pubes-

cence; piceous, the hind angles of the prothorax and the suture and epipleure of the elytra obscure

ferruginous, the antenn testaceous or obscure testaceous, the legs piceous or brown, the tarsi testaceous.

Head rugulosely punctured, the eyes large, prominent in the male; antenne slender, elongate, the joints

4-10 each with a rather long ramus in the male and serrate in the female. Prothorax short, feebly

convex in front, sharply margined at the sides and apex, the sides rounded and rapidly converging from

a little before the base to the apex, the hind angles sharp; the base trisinuate, smooth; the surface

thickly, finely punctate. Scutellum closely punctured, feebly notched in the centre in front. Elytra

moderately long, parallel in their basal half, sharply margined at the sides, wider than the prothorax,

and slightly produced at the apex, the humeri rounded ; obsoletely seriate-punctate to near the apex,

the interstices flat and thickly, minutely punctate. Fifth ventral segment feebly arcuate-emarginate at;

the apex in the male. Tarsal claws with an acute curved tooth in the male and rectangularly dilated in

the female.

Length 52-62, breadth 2;4,-24 millim. (¢ 9.)

656 SERRICORNIA.

Hab. Costa Rica, Volean de Irazu (Rogers); Panama, Volcan de Chiriqui

(Champion).

A male from Costa Rica and a female from Chiriqui. Very like P. denticulata, but

with the thorax much more finely punctured and its basal margin smooth, the fifth

ventral segment very differently formed in the male.

54, Ptilodactyla deleta.

Moderately elongate, rather narrow, flattened above, shining, thickly clothed with yellowish-cinereous pubes-

cence ; varying in colour from piceous to rufo-testaceous or testaceous, the elytra with a paler humeral

patch, the antenne and legs testaceous or obscure testaceous. Head densely punctured, the eyes large ;

antenne long and slender, the joints 4-10 each with a moderately long ramus in the male and serrate in

the female. Prothorax short, convex and greatly narrowed in front, sharply margined at the sides and

apex, the sides rounded behind and rapidly converging from a little before the base to the apex, the hind

angles acute; the base trisinuate, feebly denticulate towards the sides; the surface thickly punctured.

Scutellum rugulosely punctate, with a shallow notch in the centre in front. Elytra moderately long, a

little wider than the prothorax, subparallel in their basal half, sharply margined at the sides and

slightly produced at the apex, the humeri rounded; punctate-striate to near the apex, the interstices

rugulosely punctured. Fifth ventral segment subtriangularly emarginate at the apex in the male.

Tarsal claws with an acute curved tooth in the male and rectangularly dilated in the female.

Length 33-5, breadth 14-2 millim. (¢ 2.)

Hab. Mexico, Amula in Guerrero, Teapa in Tabasco (H. H. Smith), Jalapa, Cerro

de Plumas (Hége); Guatemaua, near the city (Salvin), Zapote, Capetillo, Calderas,

San Gerénimo, Chiacam (Champion).

Very near P. forcipata and P. granulicollis, but smaller and also rather more shining,

differing from them chiefly in the feebly notched scutellum, the feebly denticulate

basal margin of the thorax, and the subtriangularly emarginate fifth ventral segment

in the male. Most of the Guatemalan specimens are testaceousin colour. The single

male from Jalapa has the fifth ventral segment more deeply emarginate than the

others.

55. Ptilodactyla marcida.

Oblong-oval, narrow, flattened above, shining, thickly clothed with yellowish-cinereous pubescence ; piceous or

fuscous, the elytra sometimes fusco-testaceous, the antenne and legs testaceous or fusco-testaceous.

Head densely punctured, the eyes large and prominent in the male, smaller in the female; antenne

elongate and very slender, the joints 4-10 each with a slender ramus in the male and very feebly serrate

in the female. Prothorax short, convex and much narrowed in front, sharply margined at the sides and

apex, the sides rounded behind and rapidly converging from a little before the base to the apex, the hind

angles acute ; the base trisinuate, almost smooth; the surface thickly punctate. Scutellum rugulosely

punctate, with a very shallow notch in the centre in front. Elytra moderately long, considerably wider

than the prothorax, sharply margined and distinctly rounded at the sides, the humeri rounded ; punctate-

striate to near the apex, the interstices rugulosely punctured. Fifth ventral segment subtriangularly

emarginate at the apex in the male. Tarsal claws with an acute curved tooth in the male and rectangu-

larly dilated in the female.

Length 33-4, breadth 14-12 millim. (6 @.)

Hab. Guatemata, Capetillo (Champion).

PTILODACTYLA. 657

Nine specimens. Very nearly allied to P. deleta, but less parallel in shape, especially

in the female, the basal margin of the thorax almost smooth, the body uniformly

piceous or fuscous. In some of the specimens the punctures of the strie are obsolete,

but the strie are still visible. The feebly notched scutellum separates it from

P. granulicollis, &c.

A mutilated male example from Chiriqui perhaps belongs here.

56, Ptilodactyla debilis.

Moderately elongate, narrow, flattened above, shining, thickly clothed with fine short greyish pubescence ;

black or piceous, the legs and sometimes the two basal joints of the antennz testaceous. Head rugulosely

punctured, the eyes moderately large; antenne long and stout, the joints 4-10 each with a short ramus

in the male and serrate in the female. Prothorax short, feebly convex in front, compressed at the sides

anteriorly, the sides subparallel behind, and arcuately converging forwards, the hind angles acute; the

base trisinuate, smooth; the surface thickly, in some female specimens finely and more sparsely, punctate.

Scutellum punctured, notched in the centre in front. Elytra moderately long, wider than the prothorax,

parallel in their basal half, slightly depressed on the disc below the base, narrowly margined at the sides,

the humeri rounded ; distinctly, but shallowly punctate-striate on the disc, the interstices more finely,

rugulosely punctate. Fifth ventral segment shallowly arcuate-emarginate in the male. Tarsal claws

with an acute tooth in the male and rectangularly dilated in the female.

Length 23-34, breadth 1-14 millim. (¢ @.)

fab. Mexico, Chilpancingo in Guerrero (4. H. Smith); Guatemata, Cerro Zunil

(Champion).

Seven examples, one only, a male, being from Mexico. This very obscure species is

allied to P. tenuzs, but it is less elongate, the third and fourth joints of the antenne are

equal in length, and the thorax is more transverse and more rounded at the sides.

57. Ptilodactyla rotundicollis.

the antenne piceous, the legs and palpi testaceous, the femora flavous. Head rugulosely punctured, the

eyes moderately large; antennz elongate, stout, the joints 4-10 serrate. Prothorax short, moderately

convex in front, compressed at the sides anteriorly, widest at the middle, the sides acutely margined,

rounded, and converging in front and behind; the base trisinuate and with a short projecting tooth in

the centre, smooth ; the surface thickly, finely punctate. Scutellum rugulosely punctured, notched in

the centre in front. Elytra moderately elongate, wider than the prothorax, parallel in their basal half,

slightly depressed on the disc below the base, narrowly margined, the humeri rounded; punctate-striate

to near the apex, the interstices rugulosely punctured.

Length 34, breadth 12 millim.

Hab. GuatemAta, San Geronimo (Champion).

One example. Closely allied to P. debilis, but differing from it (and from nearly all

the other species described here) in the posteriorly narrowed thorax, the sides of which

are acutely margined and strongly rounded.

58. Ptilodactyla tenuis. (Tab. XXVII. figg. 26, ¢; 26a, antenna.)

g. Elongate, narrow, subcylindrical, flattened above, shining, rather sparsely clothed with moderately long

greyish hairs; black, the tibie and the apices of the femora piceous, the rest of the legs testaceous.

Head thickly punctured, the eyes moderately large; antennz stout, nearly as long as the body, the joints

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, August 1897. 4p

658 SERRICORNIA.

4-10 each with a rather stout ramus of about the same length as the joint to which it is articulated,

joint 3 subtriangular, considerably shorter than 4. Prothorax transverse, subconical, thickly punctured,

the hind angles acute; the base trisinuate, almost smooth. Scutellum thickly punctured, flat, with a

shallow notch in the centre in front. Elytra elongate, considerably wider than the prothorax, parallel

to beyond the middle, narrowly margined at the sides, the humeri rounded; shallowly but coarsely

punctate-striate to near the apex, the interstices almost flat and rugulosely punctured. Legs long and

slender. Tarsal claws with an acute curved tooth.

Length 4, breadth 12 millim.

Hab. Guatmmata, Quiché Mountains 7000 to 9000 feet (Champion).

Two males. A very small, narrow, elongate species, with stout, black antenne, a

short, subconical thorax, and rather coarsely punctate-striate elytra. It approaches

P. forticornis, but differs from that insect in the form of the thorax and scutellum, the

slender legs, &c.

59. Ptilodactyla costaricensis.

antenne brown, the legs obscure testaceous. Head rugulosely punctured, the eyes rather small; antennz

elongate, the outer joints becoming acutely serrate, 3 very long, slightly longer than 4. Prothorax very

short, broad, moderately convex in front, acutely margined and somewhat explanate at the sides, the

latter rounded and converging from about the basal third forwards, the hind angles acute; the base

trisinuate, feebly denticulate at the sides and in the middle, and with a short projecting tooth in the

centre; the surface closely and finely granulate-punctate. Scutellum rugulosely punctured, deeply

notched in the centre in front. Elytra moderately elongate, wider than the prothorax, sharply margined

and a little rounded at the sides, the humeri rounded; finely and obsoletely punctate-striate on the disc,

the rest of the surface very finely and rugulosely punctured. Tarsal claws long, angularly dilated at the

_base only.

Length 53, breadth 23 millim.

Hab. Costa Rica (Rogers).

One example. Differs from all the other species of the genus described here in the

form of the tarsal claws, these being unusually long and angularly dilated at the base

only (the angularly dilated portion of the claw usually extending to near the middle in

the females of this genus). P. costaricensis resembles P. subparallela and P. parallela

in shape, but is less elongate and less parallel.

LACHNODACTYLA.

Apical joint of the maxillary palpi very elongate, large, and cultriform, with the inner side cleft down the

middle and spongy within, in the male, and elongate, slender, and obliquely truncated at the tip in the

female; the penultimate joint short, about half the length of the second. Tarsal claws dilated to beyond

the middle and armed with an acute curved tooth in the male, acutely rectangularly dilated in the female.

The other characters as in Ptilodactyla.

The two species from Mexico or Guatemala referred to this genus differ from

Ptilodactyla in both sexes in the form of the maxillary palpi, the third joint being

relatively very short and the fourth elongate, the latter being very elongate, large,

and somewhat cultriform in the male. The apical joint in this sex is cleft down

LACHNODACTYLA. 659

the middle on the inner side and spongy within, the insect apparently having the

power of distending it at will: in most of the specimens examined this joint has

shrivelled a good deal in drying. A similar form of the tarsal claws is found in a

section of Péilodactyla. In both species the front of the scutellum, as well as the

basal margin of the thorax, is denticulate, and in one of them the scutellum itself is

very small. In the females of LZ. parviscutwm the apical joint of the maxillary palpi is

less elongate than in the corresponding sex of LZ. monticola.

1. Lachnodactyla monticola, (Tab. XXVII. fig. 25, ¢; 25a, maxilla and

maxillary palpus; 250, tarsal claw ; 25, fifth ventral segment; 25 d, genitalia.)

Elongate, narrow, parallel, flattened above, shining, thickly clothed with rather long, decumbent, pale brownish

hairs; pitchy-black or piceous, the elytra often paler than the prothorax and usually with an oblique streak

at the shoulders and the sides towards the apex ferruginous or obscure testaceous, the antennee piceous or

obscure testaceous, the legs testaceous or obscure testaceous, the tibize usually darker. Head moderately

broad, densely, rugulosely punctate, the eyes large and prominent in the male, much smaller in the

female; antenne long and slender, the joints 4-10 each with a slender ramus in the male and serrate in

the female. Prothorax moderately transverse, feebly convex in front, and slightly depressed behind,

sharply margined at the sides and apex, the sides rounded and rapidly converging almost from the base,

the hind angles acute; the base bisinuate, denticulate; the surface thickly, somewhat coarsely granulate-

punctate. Scutellum moderately large, transversely cordate, with a shallow notch in the centre in front

and three fine teeth on either side of it. Elytra elongate, considerably wider than the prothorax, parallel

in their basal half, narrowly margined at the sides, the humeri rounded; finely or obsoletely punctate-

striate, the interstices flat and finely, rugulosely punctate. Fifth ventral segment arcuate-emarginate at

the apex in the male. °

Length 6-8, breadth 2-22 millim. (do 9.)

Hab. Mexico (Sallé), Omilteme and Chilpancingo in Guerrero (H. H. Smith)

GuateMaLa, Quiché Mountains 9000 feet, Las Calderas 7000 feet, and San Gerénim

(Champion).

Found in numbers at Las Calderas and sparingly elsewhere, all the specimens having

been found at a considerable elevation above the sea. ‘The males are narrower than

the females. ‘The Mexican specimens have the elytra obsoletely punctate-striate.

2. Lachnodactyla parviscutum.

Moderately elongate, elliptic, flattened above, shining, thickly clothed with brownish pubescence; pitchy-black

or piceous, the anterior margin of the prothorax and the shoulders or sides of the elytra sometimes

ferruginous, the antenne and legs brownish or testaceous. Head densely punctured, the eyes large;

antenne long and slender, joints 4-10 each with a moderately long ramus in the male and serrate in

the female. Prothorax short, transversely convex in front, sharply margined at the sides and apex, the

sides rounded and rapidly converging almost from the base, the hind angles acute; the base bisinuate,

denticulate ; the surface thickly, somewhat coarsely punctate. Scutellum very small, cordate, and usually

with a shallow notch in the centre in front and two fine teeth on either side of it. LElytra moderately

long, wider than the prothorax, broadly margined and somewhat rounded at the sides, the apices rather

sharp; obsoletely punctate-striate, the interstices flat and finely, rugulosely punctate. Fifth ventral

segment feebly arcuate-emarginate at the apex in the male.

Length 53-7, breadth 23-3 millim. (¢ Q.)

Hab. Mexico, Jalapa (Hége).

4P2

660 -SERRICORNIA.

Six examples. Easily separable from L. monticola by its broader and more oval

shape and the very small scutellum. This insect closely resembles Ptilodactyla

mexicana, but may be easily known from it by the very small, anteriorly denticulate

scutellum, as well as by the form of the maxillary palpi.

STIROPHORA.

Apical joint of the maxillary palpi ovate, slender, short. Mesosternum with a long and exceedingly prominent

keel, the anterior portion of which is received between the strongly exserted front coxe. Legs long and

slender ; the tibie with long spurs; hind tarsi with the basal joint very elongate, longer than the following

joints united, joint 3 with a broad lobe, 4 scarcely visible; the claws with a rectangular tooth. The other

characters as in Ptilodactyla.

The very prominent mesosternal keel distinguishes this genus from all the other

Ptilodactylini. The only example received is of the female sex, and in a very bad

state of preservation. The male probably has articulated rami to the antenne.

1. Stirophora sulcipennis.

Elliptic, moderately convex, rather shining, thickly pubescent, rufo-piceous, the antenne: and tarsi testaceous ;

the upper surface closely, very finely punctate, the under surface very finely rugulose, the metasternum

with minute scattered punctures. Head broad, the eyes prominent, moderately large; antenne elongate,

slender, joint 3 very long, longer than 4, 4—6 equal in length (the others broken off). Prothorax much

broader than long, acutely margined at the sides, the latter explanate behind and rapidly converging from

a little before the base to the apex, the hind angles rather obtuse, the disc depressed in the middle before

the base ; the base trisinuate, smooth. Scutellum transversely cordate, with a very shallow notch in the

centre in front. Elytra moderately elongate, much wider than the prothorax, sharply margined at the

sides, depressed on the disc below the base, the apices a little produced, the humeri rounded ; sulcate, the

sulci each with an almost obsolete row of punctures, the interstices convex throughout, and less closely

and more rugulosely punctured than the prothorax.

Length 63, breadth 3 millim. (9.)

Hab. Nicaragua, Chontales (Belt).

CHATODACTYLA.

Apical joint of the maxillary palpi ovate, small, not longer than the third, the second and third joints

triangular and subequal. Head broad, vertical ; the epistoma separated from the front by a very deep

groove, the front slightly prominent on either side above the point of insertion of the antennew ; the eyes

prominent, small. Antenne (@) elongate, the joints from the third flattened, strongly serrate, and

greatly dilated, the outer ones becoming gradually narrower. Mesosternum feebly carinate down the

middle between the coxe. Legs elongate, slender, the tibize with long spurs; the middle and hind tarsi

with the basal joint slender and very elongate, that of the hind tarsi longer than the other joints united,

the basal joint of the anterior tarsi moderately elongate, the third joint with a broad lobe, the fourth joint

extremely small, the claw-joint long and very slender; the claws with a broad acute tooth. The other

characters as in Ptilodactyla.

The single species referred to this genus has a very different facies from that of any

of the other Central-American Dascillide. ‘The comparatively small and prominent

eyes, the slender, very elongate basal joint of the middle and hind tarsi, the greatly

dilated, flattened, strongly serrate, tapering antenne, &c., separate it at once from

Ptilodactyla. The insect resembles a Lycid and varies a good deal in the colour of the

CHATODACTYLA. 661

elytra. ‘The only male received is, unfortunately, in a fragmentary condition. ‘The

antenne may prove to be differently formed in this sex.

1. Cheetodactyla lyciformis. (Tab. XXVII. figg. 27, 2; 27a, antenna ;

27 6, maxilla and maxillary palpus.)

Elongate, moderately convex, flattened above, dull, the elytra slightly shining ; black, the prothorax testaceous

or ferruginous, with a broad black median vitta, the scutellum black or ferruginous, the elytra varying in

colour from black with the shoulders testaceous or ferruginous to testaceous with a black apical patch ; the

antenne black or piceous, with the apical joint and the apex of the tenth testaceous; the legs black or

piceous, the base of the femora and the coxze more or less testaceous; the upper surface densely, very finely

granulate, and thickly pubescent, the pubescence ochreous on the light-coloured portions and fuscous

elsewhere ; the under surface somewhat shining, very finely rugulose, and clothed with greyish pubescence.

Antenne ( @ ) about two-thirds the length of the body, joint 2 very small, 3 dilated, elongate-triangular,

4-10 each acutely produced at their inner apical angle, 4-7 very broadly dilated, 8-10 gradually

becoming narrower, 11 slender, as long as 10, and acute at the tip. Prothoraxa little broader than long,

margined at the sides and in front, the sides rounded and converging almost from the base, the hind

angles acute; the base bisinuate, smooth. Scutellum transversely cordate, with a shallow notch in the

centre in front. Elytra elongate, much wider than the prothorax, subparallel to beyond the middle,

conjointly rounded at the apex, narrowly margined at the sides, the humeri rounded; distinctly punctate-

striate to the apex, the interstices rather convex. Fifth ventral segment feebly arcuate-emarginate at

the apex in the male.

Length 53-63, breadth 2-24 millim.

Hab. Nicaragua, Chontales (Belt, Janson).

Five females and one male, all mutilated, the male without head. The elytra vary

in colour according to the predominance of the light or dark colour.

SUPPLEMENT.

PRIONOSCIRTES (p. 602).

2. Prionoscirtes nigripennis.

Rotundate, convex, shining; rufo-testaceous, the eyes and elytra black, the apex of the latter narrowly and

the antenne and legs testaceous; finely pubescent, the pubescence fuscous on the dark portion of the

elytra and yellowish elsewhere. Head and prothorax sparsely, exceedingly minutely punctate; antennee

about two-thirds the length of the body, the joints from the fourth rather slender and diminishing in

length, parallel in their outer half; scutellum and elytra thickly, finely punctate; legs short and stout.

the tibise broad and compressed.

Length 3, breadth 2 millim. ( 9.)

Hab. Guaremata, El Reposo. (Champion).

One female example, in perfect condition. Differs from P. saltitans in its much

broader form, more slender antenne (the first joint similarly formed), stouter legs (the

tibize especially), and black elytra, the apical margin only of the latter being pale.

662 SUPPLEMENT.

SCIRTES (p. 606).

Scirtes angustatus (p. 616).

In the description of this insect, based upon two females from David and a male

from Caldera, I accidentally omitted to notice the sexual characters, which are very

similar to those of some of the Central-American species of Cyphon (C. bifoveo-

latus, &¢c.) :—

Q. Elytra eack with a large rugulose depression immediately before the apex.

&. Fifth ventral segment arcuate-emarginate at the apex.

One of the two female specimens from David has an additional oblong depression

on each elytron close to the suture (perhaps accidental), a little in front of the other.

Three more examples have since been seen, two males and a female, from the Island

of Grenada (H. H. Smith).

APPENDIX.

Fam. BUPRESTIDA*.

In order to make this Work as complete as possible, the following list of species

described from our fauna since 1889 has been compiled, and some synonymical

notes and descriptions of two new species are added.

PSILOPTERA, Sol.

Psiloptera (Lampetis) auropunctata, Kerr. Ann. Soc. Ent. Belg. 1893, p.507. | Mexico.

BUPRESTIS, Linn.

Buprestis jimenezi, Dugés, La Nat. (2) ii. p. 7, t. 1. figg. 10,10 @(1891). Jalapa, Mexico

This is undoubtedly B. cotoxantha, Gory.

MELANOPHILA, Eschsch.

Melanophila nigra, Dugés, La Nat. (2) ii. p. 8, t. 1. figg. 11, 11 a-c. Tupataro, Mexico.

This is probably W. atra, Waterh.

THRINCOPYGE, Lec.

Thrincopyge marginata, Waterh. Ann. & Mag. Nat. Hist. (6) v. p. 218 (1890).

| Durango, Mexico.

ACMZEODERA, Eschsch.

Acmeodera mesta, Dugés, La Nat. (2) ii. p. 11, t. 1. fig. 17. Guanajuato, Mexico.

” jucunda, Dugés, loc. cit. p. 14, t. 1. fig. 20. Acapulco, Mexico.

Almost certainly A. impluviata, Mann.

9 sinaloensis, Dugés, loc. cit. p. 14, t. 1. fig. 21. Sinaloa, Mexico.

CHRYSOBOTHRIS, Eschsch.

Chrysobothris sobrina, Dugés, La Nat. (2) ii. p. 19, t. 1. fig. 26. Guanajuato, Mexico.

This seems to be C. guadriplagiata, Waterh.

» armata, Dugés, loc. cit. p. 19, t. 2. fig. 29. Chiapas, Mexico.

» ignota, Dugés, loc. cit. p. 20, t. 2. fig. 30. Guanajuato, Mexico.

* By C. O. WarERHousE.

664 APPENDIX.

TRYPANTIUS, Waterh.

By an unfortunate slip of the pen this genus appears on p. 186 under the name

Trypanidius, and on Tab. IV. as Zripanidius. ‘The error was not discovered when the

following species was described.

Trypantius fiohri, Waterh. a Navarrete, Mexico.

Trypanidius flohri, Waterh. Ann. & Mag. Nat. Hist. (6) v. p. 219 (1890).

Several specimens of this pretty species have also been received from Santiago

Ixcuintla in Jalisco (Flohr).

PARADOMORPHUS, Waterh.

The following new species must be added to this genus :—

Paradomorphus fiohri, sp. n.

Elongatus, sat latus, cyaneus, pubescens; elytris aureo-cupreis, plaga elongata cyanea ornatis.

Long. 4 lin.

Hab. Mexico, Canelas in Durango (Flohr).

Near P. diplagiatus, Waterh. (anted, p. 55), but larger, more robust, and rather

differently coloured. It is of a pale steel-blue colour, sparingly clothed (except on

the elytra) with very short whitish pubescence. Head closely punctured, longitudinally

impressed in front. Thorax rather broad, moderately convex, covered with rather

coarse wavy confluent ruge; the disc is gently convex in front, vaguely impressed

posteriorly; the ridge at the posterior angle is very indistinct. Scutellum almost

smooth, blackish. Elytra subparallel for half their length, then distinctly widened,

and then obliquely narrowed to the apex; rather coarsely granulate, shining, obscure

golden-coppery, with a dark steel-blue patch extending from near the base to the apex,

leaving the margins coppery. The sutural area is flattened, so that the lateral half of

each elytron is slightly raised. On the under flanks of the prothorax the pubescence

is very dense and obscure yellow. ‘The abdomen is closely and coarsely punctured.

The basal joint of the posterior tarsi is a little longer than the second joint.

AGRILUS, Steph.

Agrilus deborrei, Dugés, La Nat. (2) il. p. 24, t. 2. fig. 36. Leon, Mexico.

borrei, Kerr. Mém. Soc. Ent. Belg. i. p. 249.

» metallescens, Dugés, loc. cit. p. 26, t. 2. fig. 39. Guanajuato, Mexico.

» bimaculatus, Dugés, loc. cit. p. 26, t. 2. fig. 40. Guanajuato, Mexico.

» rubrovittatus, Dugés, loc. cit. p. 28, t. 2. fig. 44. Tupataro, Mexico.

This appears to be Engyaulus rubrovittatus, Waterh.

» caliginosus, Dugés, loc. cit. p. 29, t. 2. fig. 46. Tupataro, Mexico.

» wtgnevsignatus, Dugés, loc. cit. p. 29, t. 2. figg. 47, 47 d¢s. §Tupataro, Mexico.

SERRICORNIA. 665

Agrilus cupreomaculatus, Dugés, loc. cit. p. 30, t. 2. fig. 48. Tupataro, Mexico.

» fraternus, Dugés, loc. cit. p. 31, t. 2. fig. 49. Tupataro, Mexico.

» tupatarensis, Dugés, loc. cit. p. 31, t. 2. figg. 50, 50 des. Tupataro, Mexico.

» consobrinus, Dugés, loc. cit. p. 32, t. 2. fig. 51. Tupataro, Mexico.

» kerremansi, Dugés, loc. cit. p. 32, t. 2. fig. 52. Tupataro, Mexico.

» purpurascens, Kerr. Mém. Soc. Ent. Belg. i. p. 269.

purpureus, Dugés, La Nat. (2) ii. p. 32, t. 2. fig. 53 (nec Thunb.). Guanajuato, Mexico.

» tarrascus, Dugés, loc. cit. p. 33, t. 2. fig. 54. Michoacan, Mexico.

» alemani, Dugés, loc. cit. p. 33, t. 2. fig. 55, Moroleon, Mexico.

» nanus, Dugés, loc. cit. p. 33, t. 2. fig. 56. Tupataro, Mexico.

» carmineus, Duges, loc. cit. p. 34, t. 2. fig. 57. Tupataro, Mexico.

» novus, Dugés, loc. cit. p. 34, t. 2. fig. 58. Tupataro, Mexico.

» chlorus, Dugés, loc. cit. p. 35, t. 2. fig. 59. Tupataro, Mexico.

» Oucolicus, Kerr. Ann. Soc. Ent. Fr. 1894, p. 419. Mexico.

» subobtusus, Kerr. loc. cit. p. 415. Mexico.

» patruelis, Kerr. loc. cit. p. 416. Mexico.

» tacitus, Kerr. loc. cit. p. 416. Mexico.

» demissus, Kerr. loc. cit. p. 416. Mexico.

» fugax, Kerr. loc. cit. p. 417. Mexico.

5 percarus, Kerr. loc. cit. p. 418. Mexico.

» mentitus, Kerr. loc. cit. p. 418. Mexico.

TAPHROCERUS, Sol.

Taphrocerus leoni, Dugés, La Nat. (2) ii. p. 35, t. 2. figg. 61, 61a.

Leon, Tupataro, and Morelia, Mexico.

kerremansi, Dugés, loc. cit. p. 35, t. 2. figg. 62, 62a. Tupataro, Mexico.

BRACHYS, Sol.

Brachys chapuisi, Dugés, La Nat. (2) il. p. 36, t. 2. fig. 63. Tupataro, Mexico.

» hexagonalis, Dugés, loc. cit. p. 36, t. 2. fig. 64. Guanajuato, Mexico,

MICRASTA.

Kerremans, Ann. Soc. Ent. Belg. 1893, p. 115, nota.

Micrasta typica, Kerr. loc. cit. p. 115 nota. Mexico.

- cyanipennis, Kerr. loc. cit. p. 115 nota. Mexico.

BIOL, CENTR.-AMER., Coleopt., Vol. III. Pt. 1, August 1897. A Q

666 APPENDIX.

Micrasta amplithorax, Kerr. loc. cit. p. 115 nota. Mexico.

» meligethoides, Kerr. loc. cit. p. 116 nota. Mexico.

LIUS, Deyyr.

Lius amabilis, Kerr. Ann. Soc. Ent. Belg. 1896, p. 329. Mexico.

,, a@neus, Kerr. loc. cit. p. 330. Mexico, Venezuela.

PACHYSCHELUS, Sol.

Pachyschelus bicolor, Kerr. Ann. Soc. Ent. Fr. 1894, p. 420. Mexico.

» carmineus, Kerr. loc. cit. p. 420. | Mexico.

3 albopictus, Kerr. loc. cit. p. 421. Mexico.

9 solitarius, Kerr. loc, cit. p. 421. Mexico.

LEIOPLEURA, Deyyr.

Leiopleura lata, Kerr. Ann. Soc. Ent. Fr. 1894, p. 422. Mexico.

9% minuta, Kerr. loc. cit. p. 422. Mexico.

99 levis, Kerr. loc. cit. p. 422. Mexico.

55 inequalis, Kerr. loc. cit. p. 423. Mexico.

5 nitidicollis, Kerr. loc. p. 423. Mexico.

The following species of this genus appears to be undescribed :—

Leiopleura beltii, sp. n.

Oblongo-ovalis, lata, nitidissima ; capite aureo-viridi, subtiliter sat crebre punctato, medio leviter sulcato ;

thorace aureo-viridi, antice angustato, medio leviter convexo, parce subtiliter punctulato, vitta cupreo-

purpurea ornato, lateribus sat deplanatis, rugulosis; scutello nigro, levi; elytris cupreis, fulgentibus,

sat crebre evidenter punctatis, lateribus bi-impressis, marginibus violaceis; .corpore subtus nigro,

nitido.

Long. 14 lin.

Hab. Nicaragua, Chontales (Belt).

This beautiful species is nearest to L. contigua, Waterh. (anted, p. 154), but it is

larger and rather broader, and quite differently coloured from this and all the other

members of the genus known to me. ‘The purple band on the disc of the thorax is

narrow in front, a little wider than the scutellum at the base. The punctuation of

the elytra is moderately strong: the punctures are unequal in size, and not very close

together. :

SERRICORNIA. 667

Since the publication of Dr. Horn’s Enumeration of the Throscide and Eucnemide,

anted, pp. 193-257 (1890), a few additional Eucnemide have been detected in the

collections under examination, and one species of each family has been described by

M. Fleutiaux. These are as follows :—

Fam. THROSCIDA *.

AULONOTHROSCUS (p. 208).

4. Aulonothroscus mexicanus.

Aulonothroscus mexicanus, Fleut. Ann. Soc. Ent. Belg. 1895, p. 159'.

Hab. Mexico}.

Found in Paris in imported Mexican tobacco.

Fam. EUCNEMIDA*.

CEROPHYTUM (p. 213).

Cerophytum fuscicorne (p. 213).

To the localities given, add :—Nrcaraeua, Chontales (Belt).

A single mutilated example (without antennz) from Chontales probably belongs here.

It is ferruginous in colour, with the elytra, legs, and abdomen testaceous.

ANISCHIA (to follow the genus Cerophytum, p. 213).

Anischia, Fleutiaux, Mém. Soc. Zool. Fr. 1896, p. 300.

Head deflexed, very deeply sunk into the prothorax, rather convex, narrowed in front for the insertion of the

antenne, widening again below this, and with a very small, free labrum, the epistoma arcuate-emarginate

in front, the mouth placed beneath, the mouth-parts hidden by the broad, prominent chin-piece of the

prosternum ; eyes rounded, rather large, and partly hidden beneath the anterior margin of the prothorax ;

maxille with two lobes; apical joint of the maxillary palpi long and narrow, somewhat cultriform, nearly

as long as the second and third joints united ; mandibles bifid; antenne cylindrical, stout, very long in

the male, shorter in the female, 11-jointed, the first joint long and very stout, the second joint short and

articulated to the first on the outer side before the apex, the apical joint very elongate; prosternum broad,

the sutures single and diverging anteriorly, the intercoxal portion margined laterally, rather wide,

narrowing behind, and terminating in a long, truncated process, which is received into a deep notch in

the mesosternum, the latter slightly declivous, with the borders of the cavity raised; propleure without

antennal grooves; middle cox rather widely separated, without trochantin; hind cox deeply inserted,

widely separated, narrowing outwards, not laminate; metasternal episterna very narrow ; legs rather

short; femora compressed and subclavate, slender at the base; trochanters small; tibie flattened and

rather stout, slightly longer than the tarsi, without visible spurs; tarsi 5-jointed, simple, sparsely clothed

with fine hairs beneath, the joints 1-4 of the middle and hind pairs diminishing in length, the claw-joint

long and slender, the claws simple; prothorax short, with a sharply defined groove on either side at some

distance’ from the outer margin and parallel with it, extending from the base to beyond the middle, the

marginal carina fine and not visible from above; scutellum oval, truncate in front; elytra with a sutural

stria only, the epipleure broad in their anterior third, becoming very narrow beyond the metasternum.

* By G. C. Cuampron.

4Q2

668 APPENDIX.

This genus includes two species from Bolivia, and a third is now added from Central

America. The above detailed description of the points of structure (which was prepared

from A. crassicornis before the original description had been seen) will supplement

that of M. Fleutiaux. -Anischia seems to be an osculant form between the Eucnemide

and Elateride. In the very small labrum (which cannot be properly seen till the

mouth-parts are dissected) and the form of the head and antenne it agrees with the

Eucnemide, and in the other characters perhaps better with the Elateride. The species

are of small size and somewhat resemble the smaller Horistonoti. Dr. Horn, when

dealing with the Central-American Eucnemide, rejected A. crassicornis as an Elaterid ;

_ Dr. Candéze is of opinion that it is a Eucnemid.

1, Anischia crassicornis.

Moderately elongate, narrow, convex, shining, thickly clothed with rather long, yellowish-cinereous pube-

scence ; piceous or obscure ferruginous, the legs testaceous or fusco-testaceous. Head thickly, finely

punctate ; antenne about two-thirds the length of the body in the male, much shorter in the female, joint

1 as long as 2 and 3 united, 2 short, 3 nearly twice as long as 2, 4 much shorter than 3, 4-10 subequal

in length, 11 nearly as long as 8-10 united and slightly acuminate at the tip, all the joints clothed with

long hairs. Prothorax strongly transverse, convex, narrowed in front and behind, bisinuate at the base,

rounded at the sides, the hind angles acutely produced backwards; the surface finely, rather sparsely

punctate. Scutellum flat, minutely punctate. Llytra about two and one-half times the length of the

prothorax, gradually narrowing from about the middle, and also a little narrowed in front, conjointly

rounded at the apex; thickly, very finely, confusedly punctate, without trace of striz, a very fine sutural

one excepted. Anterior femora feebly subangularly widened on the inner side towards the base, and the

anterior tibie broadly dilated on the inner side from about the middle to the apex, in the male.

Length 23-3,1,, breadth 1-11, millim. (d 2.)

Hab. Mexico, Motzorongo in Vera Cruz (Flohr); Guatemaa, Pantaleon (Champion) ;

Panama, Bugaba (Champion).

Seven examples. Allied to A. boliviana, Fleut., but differing from it in the trans-

verse thorax and other particulars.

FORNAX (p. 225).

Fornax castaneipennis (p. 228).

Another specimen of this species has been found, from the same locality as the type,

from which it differs in its much larger size (length 114 millim.), shorter and stouter

antenne, much darker elytra, and unimpressed fifth ventral segment. This second

specimen, therefore, is, no doubt, a female and the type a male, not a female as

supposed by Dr. Horn.

5 (a). Fornax granulatus.

Elongate, somewhat attenuate behind, convex, dull, the elytra moderately shining, thickly clothed with

yellowish pubescence ; piceous, the antenne ferruginous, with the basal joint darker, the legs fusco-

ferruginous. Head densely, rugosely punctured, with a distinct interocular ridge, the epistoma

wider at the base than the space between it and the eye; antenne extending to a little beyond

SERRICORNIA. 669

the hind angles of the prothorax, joint 2 short, about half the length of 4, 3 longer than 4 or 5,

the latter equal, the outer joints gradually becoming longer. Prothorax broader than long, parallel

in its basal half as seen from above, and arcuately narrowing in front; densely, rugosely punctnred,

with the interspaces raised; the base slightly longitudinally swollen in the middle and with a smooth

very deep fovea on either side of this. Elytra moderately elongate, gradually narrowing from

about the middle; distinctly striate, the interstices rugulosely punctate, becoming closely and very

distinctly granulate towards the base. Antennal grooves deep, extending to the hind angles of

the prothorax, about half the width of the propleural triangle. Intercoxal process of the prosternum

gradually narrowing and ending ina laterally compressed blunt tooth. LEpipleure deeply grooved in

front. Fifth ventral segment abruptly narrowing from a little beyond the middle and produced at the

apex into a laterally compressed obtuse tooth, the entire apex very coarsely punctured. First joint of

the hind tarsi longer than the others united. Claws rectangularly dilated at the base.

Length 10, breadth 3/5 millim.

Hab. Mexico, Chiapas (IZ. Trujillo).

One example. Allied to /. ventralis, de Bonv., from Colombia, but differing from

it in having two smooth deep fovez at the base of the thorax, the epipleure grooved

in front, the head with a distinct interocular carina, the body more parallel, &c.

Amongst the Central-American species enumerated by Dr. Horn it comes nearest to

F. affinis, de Bonv., from which it may be known by the less parallel prosternal

process, the grooved epipleure, the distinct interocular carina, the more granulate

elytra, and the form of the fifth ventral segment, this being perhaps a sexual character.

PLESIOFORNAX (p. 252).

Plesiofornax ligniperda (p. 234).

To the localities given, add :—GuatEMALa, Cerro Zunil (Champion).

De Bonvouloir’s description appears to have been made from females only, the

Mexican specimen in the Sallé collection being evidently of that sex. The male

example from Cerro Zunil differs from this latter in having the antenne very elongate

—the sexes differing in this respect in the same way as the closely allied P. pectoralis,

Horn—and the thorax much less rounded at the sides, narrowing from the base.

Plesiofornax longicornis (p. 235).

To the locality given, add :—Cosra Rica, Volcan de Irazu (Rogers).

A single female example of a Plesiofornax from Costa Rica probably belongs to this

species, described from males only, differing from them in having the antenne not

more than one-half the length of the body, and the thorax a little more closely and

more coarsely punctured. An additional male of P. longicornis has been found since

Dr. Horn’s description was published. The female measures 144 millim. in length,

670 APPENDIX.

MICRORHAGUS (p. 246).

15. Microrhagus horni.,

Microrhagus horni, Fleut. Ann. Soc. Ent. Belg. 1895, p. 166°.

Hab. Mexico}.

Found in Paris in imported Mexican tobacco.

CRYPTOSTOMA (to follow the genus Arrhipis, p. 255).

Cryptostoma, Latreille, Fam. Nat. p. 848 (1825); de Bonvouloir, Mon. Eucnem. p. 753; Horn,

Trans. Am. Ent. Soc. 1891, p. 40 *. ‘

Ceratogonys, Perty, Del. Anim. Art. Bras. p. 24 (1830-1834).

Basodonta, Westwood, in Guérin’s Spec. et Icon. des Anim. Artic. livr. i. no. 8 (1843).

1. Cryptostoma nigricorne.

Basodonta nigricornis, Westw. loc. cit. tab. figg. 1-7 *.

Cryptostoma nigricorne, de Bonv. Mon. Eucnem. p. 758, t. 36. fig. 7”.

Hab. Nicaracua, Chontales (Bel¢).—Cotompta ! 2.

The single specimen received is fulvous red in colour, with the antenne, the tibie,

the three basal joints of the tarsi, and the greater part of the abdomen black. It

differs from Westwood’s description and figures in having the basal joint of the

antenne unarmed, and it is therefore probabiy a female. The insect appears to vary a

good deal in colour.

THYLACOSTERNUS (p. 257).

5. Thylacosternus vittatus.

Very elongate, narrow, cylindrical, moderately shining; head and antenne black (the outer joints of the latter

broken off); the prothorax testaceous, with a broad sinuous vitta on either side of the disc, extending

from the base to near the apex and widening on the inner side posteriorly, and the anterior margin

opposite the vittee, black ; the scutellum and elytra black, each elytron with two testaceous vittee—one

close to the suture and the other marginal, both nearly reaching the apex ; the metasternum and abdomen

in great part black; the femora flavous, with the apex piceous, the tibie black, the tarsi testaceous, with

the lamell flavous; thickly pubescent, the pubescence on the upperside partaking of the ground-colour,

pale beneath ; the upper surface densely, finely punctate, the punctuation on the head coarser and more

rugose, the shoulders of the elytra granulate. Prothorax transversely subquadrate, narrowed in front

only, finely canaliculate down the middle behind and also with a transverse depression on the middle of the

disc. Elytra feebly striate at the base.

Length 13, breadth 2,1, millim.

Hab. Nicaraeua, Chontales (Janson).

This species somewhat resembles 7. guadrivittatus (Redt.) from Rio J aneiro, but it is

much narrower, with the thorax and legs very differently coloured. It also approaches

L. rubricollis, but has a more parallel thorax, as well as being differently coloured.

* Dr. Horn’s description of the antenne applies to the South-American C. sptnicorne (Fabr.) only,

[Names in small capitals refer to Families, &c.; those in roman type to the chief reference to each species included in the work ;

those in italics to species incidentally mentioned, synonyms, &c. |

Page

ACANTHATHOUS ......+-5+2. 462

pachyderoides .......... 462

ACHERUSIA ....... ee ec cence 177

piliventris ...........0-- 177

ACHRESTUS .....ceeeceeeees 339

fulvovittatus.......... .. 340

—— fulvovittatus...ccceeeees 339

lycidiotdes 6... ec .ceceees 340

—— phiyllocerus ..rceveseeee 341

VENUStUS 2. eee ee eee eens 340

ACMMODERA ......-. 20, 177, 663

Acmeodera ...... ee 1

—-—amplicollis ............ 178

COITOSA «2... eeeees wee. 21

croceonotata......eeeee 23

CUPYINA ........005- 20, 177

CUPTING ..ceccaceeeees 21, 22

delectabilis .........-6- 180

exilis.......... wee. 27,181

flavomarginata...... 21,178

Jlavomarginata.. sc... 20, 25

—— flavopicta ....ccecceeees 180

—— flavopicta .....e000% 25,181

—— flavosparsa ........ 22,179

flavosparsa s.seoeeees .. 20

—— flavosticta....c.sseseee. 24

flavostictd ......000 25, 180

——— peemorrhod sescecevases 22

hivtula vescseveveeeceees 20

—— impluviata ........ 22,179

—— impluviata veccssevese 663

— jucunda ....ssececerer ee 663

—— kaupli ........ ceoeeees 20

—— kauptt wisseeeees cesses 21

lateralis... ...e0eeeeeees 21

longipennis ......e.004- 29

esoeteeoeoveoeee7e080 93

—— mima......

—$——— MUNA, nce vcvcccvovevercs 180

—— meesta ...rerercvere 663

OTNATA see. . ceeeee 26

picta ......eeeeee6. 24, 180

—— PTOXIMA....eseveeeceees 178

Page

Acmeodera pulchella ........ 26

l4-guttata... eee eee eee 27

regularig .......eeeeees 21

rubronotata ........ 22,179

rubronotata ...... 23, 25, 26

scalaris ........000, 23,179

SCUIATIS . 66. ee eee 24, 25, 26

semivittata ...... 23, 24, 180

—— setOSa....eecseceees 26, 181

sinaloensis...........-6- 663

—— stellaris..........00000- 26

StCMATIS Coe ccc ceccceeces 22

superba ....... eee ee eee 23

trifasciata ...........-.- 179

tubulus ....... 0.00000. 27

CUBULUS 6. eee cee e eens 26

venusta ........ eee ee ees 25

VUTIAESCENS 2. sec vaseceees 20

viridissima ........00. 20

ACTENODES .........0.- 28,181

Actenodes 0... .ececcceccees 1, 32

aurolineata ..sceecceees 29

bifasciata ...........00. 30

calcarata .......... 31, 182

— chalybeitarsis ...... 28, 181

—— desmaresttt ..sccceseees 32

fulginea........065. 29,181

hopfneri .......... 30, 181

hopfneri....s.c.e 31, 32, 182

humeralis .......... 31, 182

—— levifrons .............. 30

—— metallica ........ seeeee 181

MODUS ..erecescceceees 29

—— regularis .......... 29, 181

TEG™UIATIS vescasesaceces 30

—reichei .......... seeees 82

TUGUIOSA. .oceveveveneees 30

salleel... see eee cee e eee 32

SALEL oe ccccecevcveveees 32.

— undulata .......... 31, 182

——— YUCAL ANA veveeceserere 31

ADELOCERA ..cceceseeereres 258

Page

Adelocera adspersa ..sseveee . 260

CHCA .sseee ev ecevcscves 259

——— COC vr ceccccccccvceee 258

—— CUDONATIA. Loe e ee enee 261

—— ChAputsit, vicsecccecceas 259

—— CUT EM. vc acccccvervncee . 264

Aiscovded ..svseveveveves 240

longicornis .........4.- 261

LONGICOYNIS vv eeceveeeces 259

—— massula.......eeeeeeees 260

——— MASSUIA ve vccvcvenvoes . 259

MEXICANA ......0 eee eee 260

——— MEXICANA wiveeseeee 259, 261

——— MIxt@... ee eee eee 259

———— MINED. Le cccccccces 258, 260

—— MOEA Loc cvcrccceees 258

—— palliata ......... ee eee 259

PCCUUNAA vevvccccceeeee 262

—— pectinicornis..........+. 262

PeCliNICOTMIS . es eeeraees 259

PUCLUPES wr csccecccervees 488

—— pollinaria .............. 260

POWNATUA wirvesscveceees 259

—— pruinosa..... ce eeceeeses 208

——— SHOTS ve vsscecervevvecs 261

—— squalida........ ce teeee . 258

—— viridis ................ 260

—— viridis ......6. 259, 261, 262

ADELORHAGUS 1... es eeececace 254

Adelorhagus ...ceccvevevccee 213

lateralis. ...... cece cee 255

ADELOTHYREUS ...... seere 254

Adelothyreus ...cececes veeeee 213

COMmeS ......4. aise wens 254

ACJEANT cee veevesveees 254

flavosignatus........006. 204

ADRASTINI wecccecececeseee Od

Adrastus cructellus

PV@CO® vsvecceseccseees OAD

ZEOLUS ......05. pevvileseus 359

AGOUUS 6. cece eens 3638, 365, 375

AMADIS... .ceeeveceeves BLO

612

Page

/Eolus atriceps .......-060065 371

bimucronatus ........-- 360

CIBAENSIS vec eevee eens 374

CICUMCINCEUS ve cicaeees 371

circumscriptus .......... 367

circumscriptus ....++ 368, 369

CTUCIZEL... ec eee eee eee 371

1 363

. ACSIGNATUS 6. cee cnecnnes 369

discoideus ......++++02.. 379

CLEGANS . 6. cc eevee reaeee 368

CXCLAMALIONIS. 6.66. eevee 350

facetuS ........eceee ees 360

—— FACELUS Lo cecncacsvaees 361

JUQVUS Weary cc ceeeneennns 562

—— fumatus.,.serercreceees 363

—— fumatus,..... veeeee 304, 373

GATZONE vi vcvvvecccvvees 361

—— hemorrhoidalis ........ 364

—— hexastigma ............ 361

INEPICALUS veer ceccereens 363

—— marginatus ........56.. 365

—— melliculus..,........... 366

melliculus ..... wee. 867, 371

MOPElett vc. cevceeveveees 366

NMIQTINUS. .. ee eseeeeeeeee 373

———— NUGYINUS vcr vveceevues 364

nigritulus .......eeeeee 373

nigromaculatus.......... 360

—— obliquus ........5..4.. 364

obliquus ..... see eeeccees 369

OVIPENNIS ......eee veces 374

—— panamensis ........50.. 366

pictus ..... sereeeeees. 369

PUCLUS. cece can ceeneeee 370

—— pllatynotus..ccccccceeees 360

polygraMMUsS .secereees 362

—— pulchellus.............. 364

—— pulchellus ....6.0006 360, 365,

366, 372, 373, 374

—— rodriguezi.........eeee, 369

TUDIUCALUS . 6 ec eaeeee 366, 367

A) A 357

rugipennis........++e.6. 371

SUNALIPENNIS ... +660. wee. 362

steinhetli......ecevceeees 360

—— teniatus........ eel ate ome 870

testudineus .........46. 362

trifasctatusSs ..ssecreeees 363

trilineatus...... obee eos 368

Ertlimeatus..eecewcoees .. 869

—— trimaculatus............ 362

tripartitus ..........00.- 863

tropicalis ...... ceeeeees 367

. VAPUADULS oe vessaccvones 353

—— vermiculatus.......+2+.. O14

INDEX.

Page

Bolus vermiculatus ....- . 865, 374

vittatus .... ccs cece ee eee 370

vulneratus......ee eee ees 363

yucatanus ........ee eee 369

AGHOCERA vee ee cece cere 4,168

AG@OCEVA .ocscaeeevvces 167, 169

@entilis . 6... cee eee eee 169

QICAS voce cece cee eeee 4,168

——— JUJUS ve vsvveee veseee 5,169

—— scintillans ........eee00- 4

AGRILUS ......000- 57, 187, 664

Agrilus.. 1, 49, 50, 51, 123, 124, 176

ACCEPtUS vos eeeeseeeaee 105

ACCLIVIS ... eee eee eee 105

aciculatus ...sceceeceeee C1

acuductus ....... cece ees 78

ACUAUCTUS . cee cece ence 58

addendus .....ceeecees . 8&6

adjuncts ..eeeereeveeee 81

—— affinis.......... Seen eeee 85

albofasciatus..........-. 110

—— albofasctatus ...ccscceees 59

alemani.......ceeeeeees 665

—— ANQUStUS .oeeeeceeeeeee 7

—antennatus ...... sees 92

ANEENNALUS cv eeeacevees 57

apicalis ....... cece eee 74.

apicalts ....eceees veoeee 59

apicatus...... cee ee renee 96

asperulus ...cseceeseers 101

—— atripennis .......... wees OF

AULEOVITIGIS ..... eee eee 118

AUTeEUS ....06. sete eeene 103

GQUPEUS ccc eceenees 59, 118

—— aurilatera ....... beseeee 120

QUPUAEETA vce e eee ecaee 122

GUIITUS occa cence a evees 192

baleenoides ............ 66

baroni oo... eee e eee ees 123

basalis .......06 veseeee 107

—— basalis ...... cece eeees . 55

— hbasilaris...........0000- 91

bellus....... cece eee ... 80

— hicarinatus ....... seeee 83

— bicolorellus ............ 99

—— biemarginatus .......... 103

Difasctatus ..cccecssecces 102

—— bi-impressus ........... » 91

bimaculatus ..........4. 664

blandulus .......... ee. 109

blandulus ...... eo. 69,110

BOrrel ce ceeeee cece eeeee 664.

brunnipennis............ 120

—— bucolicus ........ ceeees 665

celaticollis.....se00. 72

Page

Agrilus carinifer .......... .. 82

CAYMINCUS ...... eee eee . 665

catherin® ........000. .. 102

CALREVINEG vivvccccecece . 59

COUAANS. 6... cece ee eens 189

cavatus ....... Seusavese 69

CAVATUS oo ccc ce ceeee wees OD

— cavifrons ...... ce eeeee 189

centralis ..... se occeees 66

—— cephalotes...........0.. 93

cephalotes ...... ace enane 191

cerinoguttatus .......... 88

—— chalcoderes .........00. 97

chalcoderes...... eee t ewes 98

—— chevrolati..... seseceees 98

chlorocephalus.......... 73

— chlorus ........ ceesceee 665

—— chrysophanus .......... 118

— confusus .........-.00. 104

CONFUSUS. 6. ce cceeees 96, 105

ConsiMilis .....-. cece eee 95

— consobrinus .........00. 665

—— correctus ..........0008 69

—— coxalis ...... ccc cece . 8&9

— cribricollis........ peeees 70

—— croceomaculatus ........ 111

croceovittatus .......06. 111

cupreomaculatus ........ 665

—— deborrei........... sees 664

delectabilis .........0.. 119

— delicatulus ............ 191

demissus .........0000. 665

denticulatus ............ 78

dentifer..........., see. 14

detractus ...........00. 86

dimidiatus ............ 107

discoidalis.............. 68

—— (?) dissimilis............ 123

distans ......... ... 64,188

divaricatus ........e000 64

divaricatus ...... 57, 58, 65

—— divergens ...eceee. coeee ZL

diversus...... ceecssceee 60

CIVaNS ...eee cece ete ees 84.

errans cesecceseccee 85

eupalamus..... tet ccees . 102

CUPALAMUS vo rccceeceeses 5Y

—— excisus ..... cece eeeees 70

—— exustus....., sever eees 62

CXLUSTUS .rrccaceccceoees OF

SaSCIOUALUS voc eeeeseeeee 95

femoralis ........0.00.. 92

Jemoralis ........ 57, 98,190

flavoguttatus .......... 112

—— fosseicollis ............ 122

—— fossiger .......eeeecev0e LIT

Page

Agrilus fossulatus............ 120

fraternus .........e00- 665

fugax..... cece ee ee eee 665

funestus........ 0.0 e eae 69

FUNESUS occ eee ences 59

furcillatus....... eens 102

-—— furcillatus......0..0e. 57, 59

GEMMALUS cove crvccvucs 192

—— glabratus .............. 115

Gractlipes ..ececereees 57, 81

—— gracilitarsis ............ 109

gractlitarsts .......ee eee 108

——hilaris ............00.. 87

igneosignatus .......... 664

———jgnotus ........ 0c. ee eee 98

——— 1GNOEUS cece ceecnnces 59

—— immaculifrons .........- 65

IMPYesSUS ..... ese ee eee 97

ineequalis .........0006, 59

incertuS ..... ee ee ee eee 115

INCETEUS vec cccecccccvees 59

jnclinatus ........00eeee 62

kerremansi ..........-- 665

—— letulus ............06.. 95

—— ]etus .....eeeeceaceee 67

—— levipennis.............. 65

laticaudatus ............ 72

laticepS ..... eee eee eee 113

laticepsS ...ceeeeeenvenes 191

——-~]atifrons ........60.... 191

Jentulus... 2... eee e eee 73

Tentulus cc ccccccceccaee 74.

MAJOL.. cece eee e eee eee 90

——— manatuS ....eecseeeaes 76

MANAUS vee eeseeeeee 57, 58

—— marginatus ............ 99

mentitus .....ee eee eee 665

——— metallescens.........+.. 664.

—— mexicanuS ....eeeeeees 91

—— molestus .......seeeee- 83

MOlestUS vcs vcceeeeeees 84

MUCOYEUS soccer acceeees 49

—__— multinotatus ........008- 75

_—— mutabilis ...........6- 101

——— MANUS. eee este eeeeeee 665

—— nigripennis ..........6- 96

—_— nitidicollis........ aeceee 79

nodifrons ......+... 68, 189

TLOVUS weeceveccverecee 665

——— oblitus ..... cece eeeeees 189

—— observans ......eeeeeeee 79

—_— oculatus ....-+.00- 60, 188

opacipennis ....+..+eees 192

PATVUS ..-eeeeeeeeeeeee 106

patruclis .....+..eeee-- 665

—— pectoralis ..... sees seers 85

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, August 1897.

INDEX.

Page

Agrilus percarus ............ 665

perlucidus.............. 118

perluctdus....cccer sees 90

—— phenicopterus .......... 121

—— phenicopterus ........06 122

pilosellus ...........0.. 69

—— pilosus ..............4. 188

—— planatus .............. 109

—— planatus ...ceceeeseeee 57

—— planipennis ............ 108

—— planipennis .........46. 109

prionurus ...........06. 115

—— PYWONUTUS vee eccceces 116

PPOPINGUUS voce eecveaee 75

pulchellus vie. cccveveees 50

pullulus .............. 104

pullulus ss. ...e. 105, 187

—— punctatissimus .......... 107

—— purpurascens............ 665

——_ PUPPUPCUS oe ee eee eeees 665

—— quadricostatus .......... 122

quadrimaculatus ........ 116

—— quadrinotatus .......... 87

TAtUS C6. ee eee eee eee eee 1038

—— FABUS ccc e eee 58

—— refectus..........00008. 105

restVictUS .......e...00- 119

—— robustus .............. 89

—— rubrovittatus .......... 664

PUPCOMS voc vecevececae 100

— (?) rufocentralis ........ 123

—— rugicollis occ cee eee 118

TUQOSUS ...... eee eee eee 122

Sallei .... ee. eee ee eee 61

—— scabiosus ...........0.. 72

—— scabrosus ..........00.. 90

—— sexmaculatus .......... 117

—— signats ...........06, 110

—— SIQNatUS. ec eceeceas 59

—— simplicicollis .......... 116

—— simulans .............. 100

—— SINWATUS eee eeevenes 81

— sobrinus .............. 93

—— SODTINUS. Loc e eee eee eee 57

Socialis 6.6... cece eee eee 77

—sodalis .............0.. 63

—— SpaYsusS ......ee cece eens 71

—— speCiOsus .............. 101

spinicaudatus .......... 80

SpiSSUS ........00.. .... 108

SPISSUS wevecccccaescece 109

—— splendidipodex.......... 102

splendidipodex .......... 59

squaliformis .........0-. 64

squalus ..........4. os... 114

SQUALUS . 6... eee 58, 115

Page

Agrilus squamulatus ........ 72

stellatus 2... .... cee 114

striativentris............ 112

strigifer...... cee ee eee 190

strigifrons ......... 0600s 75

subcarinellus .......... 69

subcostatus .........0.5 122

subguttatus .........4.. 84

sublateralis ............ 88

sublateralis ......4. 58, 187

subobtusus .......... ,. 665

sulcatulus..........000. 102

SUICALUS 06 ove cece cece ees 59

tacitus ...... cece ee eee 665

—— teniatus .............. 96

TAYTASCUS 26... ee eee 665

—— temeratus..,........... 94

temporalis.......,...... 105

LEVANUS wc eccevcccecs ». 69

—— tupatarensis ..... oe eee 665

uniformis ........ decease 87

velutino-maculatus.,.... 61

velutino-maculatus ...... 62

Vigilans...... ce. c eee 100

witticollts ..cecceccseees 176

vittulus.............00. 76

—— VEU vce c eee 57

— xanthonotus............ 110

ranthonotus ......06 58, 111

AGRIOTES ..... cece eee ceeees dll

AGri0tes. 6... eee e ween 380, 534

ACULUS ... eee ee ee ee eee 519

ACULUS voc cece ecees 512, 520

alternus........c0eeeeee 527

AUEYNUS 6. cee eee ees 514, 526

-—amabilis .............. 521

amabilis 512, 518, 522, 523, 532

angustatus ...... teceee 533

ANGUSEALUS. 6. cca e ec eee 514

AUSEFANS oo eee eee eee 511

bicolor ...........e000. 518

bicolor 2... . 6.4. ».. 512,515

—— binotatus .............. 524

binotatus ...... 512, 513, 530

castaneipennis .......... 517

castanetpennis ...... vee. O12

CEYVINUS. 6. cece ecceececs 517

-—— cinereiventris .......... 526

cmerewentris....... . 513, 5383

crocolatinus ........ 521, 522

cruciatus ...... sbeteces 528

CYUCIALUS eee ceeee ewes O14

curticollis.............. 525

curticollis ...... cece eee 513

—— fulvescens.............. 517

Sulvescens .. 512,524, 528, 529

674

Page

Agriotes guadulpensis ........ 511

guatemalensis .......... 530

—— guatemalensis ...... 514, 526

hilavis ....... eee ee aes 515

AUlAris vi cvaccveccvvees 512

hirsutus......eee eee eee 531

hirsutus....cse. 511, 514, 532

hisprdus....cvcceveeveees 532

incallidus ..........+-.. 529

Incallhdus ......006. 514, 580

UNJUMUS Cov ccevcvcecens 543

insolitus ...........05. 526

INSOULUS. .. ce eveeeee 511, 513

—— lateralis............6.4.. 520

lateralis... cc cece evecee 515

Vigatus ..csevceeees 516, 517

——lineipennis ............ 515

Vneipennis..... cece cevaae 512

longipennis ..........6. 525

longipennis .. 518, 524, 529

MEXICANUS..... eee. seen 530

MEXUCANUS. 2.00 514, 531, 548

—— miniatocollis............ 519

—— miniatocollis ..........4. 512

—— mixtus .............0.. 532

mixtus. 514, 526, 580, 531, 533

—— monticola.............. 529

—— monticola oo... ccs cveee 514

—— notatus................ 521

NOCALUS 6. eee eec ences 618

—— opacicollis.............. 531

opacicollis ...... 514, 526, 530

pauxillus ............-. 532

pauxilUs i. sevens 514, 533

pectoralis ............6. 519

pectOralts ...erccceeeees 512

—— POXUS. eee cere eeaee 517

PCLUS. ccc eeccveevevees 512

—— pulcherrimus .......... 516

—— pulcherrimus 512, 517,518, 528

—— quadraticollis .......... 525

— quadraticollis ...... 518, 533

—— quadrilineatus .......... 528

quadrilineatus ...+....4. 514

—— quadrivittatus .......... 523

— quadrivittatus 512, 518, 520,521

scapularis ..........546- 522

SCUPULATIS vee ee ceces 512, 513

—— sublineatus ............ 514

-—— sublineatus ..ccssceeees 512

—— teeniatS ...,.0...eeeee 518

— teniatus ...,.. 512,521, 524

—— trilineatus ............ 528

trilineatus .......00 512, 613

—— trivittatus.............. 520

—— trivittatus.,....-..eeeeee 513

INDEX.

Page

Agriotes vaccinus............ 524

VACCMUS sees 518, 522, 525

VirgatuS ... eee e ee eee 516

—— VIUGYAEUS eee ec cece 512

AGRIOTINI ..... cee eee tees 511

AGRYPNELLA ......000. 414, 556

COUINED Loc cece ce cnceees 414

—— squamifera ........ 415, 556

AGRYPNINI oe. cee ee eee eee 258

Agrypnus pedicularius ........ A15

PUCEUES Lier ceecvccneee 488

PUCtUS eevee ecereraeee 415

ALAINI ... cece cece ee eee eens 269

ALAMPES ......e see e eee eeee 474.

ALAIMNPES Lo ccc c cern cece eevee 463

ADNOYMNIS vv cecerecveaee 475

— melanoxanthus.......... 474.

—— melanoxanthus ........0. 473

—— vestitus....... cece eee 474

—— VESEUWUS Coe cecccnceeceee 473

ALAUS wee cece cence ences 269

ALQUS Coc ce ences 270

GAUCUS voce ccc eee recess 271

GOVGOPS .ivvvvcncervcues 270

lusciosuS .........00 ae 270

—— nletOl........... eee eee 270

0) 271

——_ O0CUIABUS ccc ce ceees 270

—— plebejus..............-. 270

—— suturalis .............. 271

—— suturalis ....ce.eceeeee 270

ALLOTRIINI 2... ce eee eee eee 489

ALLOTRIOPSIS .......00e0005 489

Masalis ......e eee eee 490

AUOENIUS occ eens 489

AMORPHOSOMA......ee20005- 48

penicillatum............ 48

ANabolus vivecccccccccccees 224

ANGISSUS 0. cece cece eees eee. 489

ANCHASTOMORPHUS...... 399, 556

Anchastomorphus oo ..00 0000s 584

apicalis ....... 6. eee eee 400

CYUL-NUQTA vee ccvcveeee 400

grouvellet ...ceecceeeeee 400

—— phedrus..............4. 400

—— phedrus ...eccevvvee 399, 402

—— quadriguttatus...... 401, 556

—— quadriguttatus .......... 400

suturalis .............. 400

suturaus ...ceeeees 401, 402

ANCHASTUS ....cceeee eee eee 389

Anchastus .. 385, 390, 893, 398, 899

Gpicals v6... ceceeee 399, 400

—— AUGUSLI .... eee eee ee eee 393

——_ AUGUST veer eecerececes 394

OL () 3892

Page

Anchastus bilineatus .:...... 395

CANAEREL. . see e eens 395, 396

circumcinctus .......... 392

CTUL-NUGTA. vo accecaccees 400

—— diffictlts ..... sec ce cece 398

discoideus..........006- 392

diversuS .....eee eee eee 393

CAVEVSUS ce eae e ccc ceees 394

FASCUULUS voce cee ee eaees 399

-—— flavomaculatus.......... 397

flavomaculatus ........4. 392

flavovittatus............ 396

JUAvovittatUs vec ceveccaes 392

forticornis............6. 398

Srontalis wisccccseeeees 385.

grouvellet ....cceees 399, 400

——hilarts wo. .ecceeeee 390, 399

lateritiUS ..........00. 398

LONGIPENNIS ..seeceeeres 399

— maculicollis ............ 395.

—— maculicollis ........0ces 396

—— melanurus.......+..000. 394

— moratus ...........4.. 897

——— NUJEP ev vcnccennves 399

—— OFNATUS oeccereccseccves 399

—— phedrus.....cceeeee 399, 400

POSTICUS. LL ice cceeeccuns 399

—— PYYJMAUS ever vereeeeee 3899

—— ruficollis .............. 3891

SANGUINEUS .......6.06. 391

—— SEMINANS Loc eevcvccevas 3899:

—— seminiger .............. 394

—— SEMINUGEF ese veees 395, 896

—— suturalis .......... 399, 400

—— tenuistriatus............ 899

tenutstriatus .....ecce0es 398

CErMINAtUS....ececeeeees 397

—— trisignatus.....cececceee 399

ANCHYTARSINI.....cceceeeee 593

ANCHYTARSUS ....... 0000 eee 593.

Anchytarsus oo. ccccccecceues 594

Bicolor ove eee cece ees 593

substriatus ....e.....0. 593.

ANELASTES 2... ...cccveeee 245

AnelasteS ..iceccccccccccves 212

Gruryl wo. cesses eee eee 245:

latretllet oo. ccc cence 245

ANEPSIUS. Lecce ccc eeeeeees 339

ANISCHIA 1.0... sec eee cece 667

ANUSChIA eee ccc ce ences 668

—-— boliviana ..........c0ee 668

crassicornis ............ 668

ANUS Loca cece cee ee cence 404

ANOPLISCHIOPSIS ........ 301, 554

basimaculatus .......... 3801

bivittatus ............ oe

802

Page

Anoplischiopsis bivittatus 301,303,304

CrOCtCOMS ove ese eee eee 302

-—— flavovittatus............ 302

~—— flavovittatus oo... cee 301

—— fuscipennis ............ 303

—— fuscipennis ........ 301, 304

lineatocollis........ 3038, 554

lineatocollis ........ 301, 555

—— luteus ............0.., 304

—— luteus voc eeccsvceveeee 301

trinotatus.............. 555

ANOPLISCHIUS ........4. 305, 555

Anoplischius .... 297,801 304, 336

atractodes.......... 309, 555

atractodes...... 299, 306, 310

Catulus oo. ccceveeee 306, 307

chalcopterus............ 308

chalcopterus ..... 4. 328, 332

—— conicicollis.......44. 297, 308

corallinicollts. .. 11.0000. 296

Civisus ....... eee eee 312

elegans ......... eee ee 312

CLEYANS vec eeaevcccceeee 313

flavicollis .............. 313

foveifrons ..........000. 315

FoverfYOns voc cecevcvecas 301

FULVUS Le. cece ee ee eee 310

—— glis. ee. ccc eee cece eee 306

GUS. cece cee cee ene 307

hemipyrV hus vi cecvcecees 296

lanugicollis vevsesscveees 304

—— laticollis .............. 314

lineatus.......e ee... ee, 313

Lin€tPeNNIS. vec cevcccees 302

longtipennis 297, 808, 311

lucidus ...........000.. 311

maculicollis ............ 311

maculicollis ......4. 312, 313

—— melanotides ............ 309

mexicanus ........ 309, 555

MERUCUNUS . eevee scenes 310

——— MUS wre essere eveevaee 307

pallidus.........-..--6. 315

——parvulus .......-..eee, 306

PATVUlUS .icecseceseues 307

piliger ........e.eeeeee 306

—— PYTONOLUS vie eeeeees 312, 314

TUPULUS Wo ccc cecenneenee 325

sanguinicollis .......... 314

SEMiGNCUS ......e.0ees 308

SODYINUS ..... eee eee ee 309

teapensig ........00506- 307

EPANSVETSUS wevseees 301,315

variabilis ............-- 310

wartabilis ...... 299, 309, 311

ANTHAXIA.. cece cece ee eens 176

INDEX.

Page

ANEhAMA Lecce cece cece ene es 175

—— fasciata.............04. 177

flavimana .............. 176

———— JUJUS vc cvvvvcevaccaee 4

——— PPACAUNS vee cece eens 176

—— quadrata oo. .ceceeceeee 17

vitticollis ...........00. 176

UUtELCOUWIS vie ceceeeceaes 177

ANTHRACOPTERYX ........05 476

Anthracoptery® ...ceeceeeee 477

AveMANS. . cece cee eeeee A77

MeXICANUS... 6... 0... ee 476

APAtUVd. occ cccccerccceeaes 16

—— NOEALH we recccccveee 417

vUrrvdvobscura oo... eee ccvee 16

Aphanisticus evtguus ........ 125

UMNPVESSUS . oe ve eens 97, 124

Aphanobius .icccccccveveees 507

COPVINUS eee eee ence eees 509

—— infuscatus ... 6... ce eeeee 508

——— MNONUS veer eccneees 505

—— MEVIAANUS. Loe eee eeces 507

SCCOSUS oo Lice cece aeeee . 505

Aploglossa ..e cc cccecccnccaes 623

COMATIS Lecce ccna cence 624

——— MATYINATA. ve cevcveeas 623

sallet .......00% an 623

APTOPUS 2... cece eee ee ee eee 418

Aptopus oo. ccc cccenccces 416, 489

basalis wo. .eeeeeaee 499, 423

OT 417

campylinus ............ 426

campylinus ........ 420, 550

—— chiriquensis ............ AQ]

CRUIQUueNSIS . 66... cee eee 422

collaris oo... ee eee eee ee 419

COUAYIS woe cc cece ecceees 42]

CONCOLOL. ccc ceseceeeees 423

constrictuS ............ 494.

erichsoni ...........005 493

CVUCRSONE vec eeereevcees 425

Cphippiger sc sccvecceeces 418

fuscipeS ...... cece eee eee 425

—— lateralis............00.. 422

lateralis... ...0eeee 418, 423

—- , var. concolor .. 422, 425

—— longicollis...........-.. 420

longipennis ........++.- 420

omiltemanus........--6- 425

OMULEMANUS 6... cee ceees 424

PCVEGTINUS 6. .ceeveeeees 424

PYUINOSUS ...... eee ee eee 419

pruinosus ., 420, 421, 428, 424

rufomarginatus ........ 420

rufomarginatus ......+. 421

SPAAUCEUS ..eveevecesaves 423

Page

Aptopus tibialis. .....ecceeees 418

—— uniformis ...........5.8. 424

—— UNLFOY MIS Lev eecsaccrees 425

VICINUS ..e secs eee eee . 421

VICINUS vic cevevvecunces 422

Arhaphes 01... ceecceeeveees 413

ARRHAPHES ....c.eee cee ees 413

AMETVICANUS .....e es eee 413

—— aiptyChus vocvevecsveves 413

ARRHIPIS 2.0.0.0: ee ce eee eee 256

Arrhipis......4. 218, 225, 253, 670

subacuta ......... eee 255

ARTEMATOPINE ......0e000 586

ARTEMATOPUS .......0.-0005 586

Artematopus oo .scccccvveeees 592

Dogotanus ....ccecccees 591

—— CANWCES. eee ee cccceee 589

—— costaricensis .........06. 590

—— COSLATICENSIS we ceccceuee 587

——trroratns ..........600. 587

——— IFPOTALUS vo cece eens 588

—— MAPMOPALUS 66. cee ceeeee 588

—— obliquus ..........4.-. 588

—— obliquus.......eeeee 587, 589

—— puncticollis ............ 589

puncticollis 587, 590, 591

rotundicollis..........-. 590

rotundicollis ........ 587, 591

—— rufescens .........ee eee 590

TUFESCENS ..eesevees 587, 591

scapularis ..... cee eee eee 589

SCUPULATIS viv ceecaccuee 587

seticOlNIS ...... eee. e eee 591

SCLICOTNUS Los eeceecceees 587

UNDANUS oo va ccc e ee eeeee 588

Asaphes ...cecvvcccveces 477, 478

carbonatus ........ 477,479

COPACINUS occ ceeeeveees 47

deceptor .....eeeee 481, 486

JMAVUPES icv vacecnecees 485

—— instabilis ........ toners 480

LeucostiGMA s.ssecreceee 480

longicollis ......eeeceees 481

PUClUPES wi. seere: ve eeeee 488

SOTUCINUS ... 406 oe.» 481, 482

ATHOINI... 1. cece cece etree 455

ATHOUS.... ccc cee cnet eneeee 456

AENOUS cic ccceccevvcees 458 462

eequinoctialis ........0. 459

—— e@quinoctialis.........00+ 456

—— angusticollis............ 461

angusticollis ...s.ceeeees 457

AZTECUS sec sereceeereees 460

ARCECUS occ e ec eeeceeees 457

campanulatus .......... 458

campanuiatus ...... 456, 459

4R2

676

_ Page

Athous carinicollis ........-. 461

carinicollis ....645. 456, 457

—— crtbratuS ....ccceceeees 46]

SENTUGMNOSUS Woe ce evreees 461

funestuS ..........000- 461

—— funestUS vevcesecereaes 457

WMSONLUS. eee ceceracvces 526

marcidus ..........065- 459

MAPCIAUS .ssceeevee 457, 460

MEXICANUS... 2. . eee ee ee 458

mexicanus.. 456, 459, 460, 462

—— photinoides ............ 457

—— photinoides ........ 456, 458

rugipennis.............. 460

PUGUPENNUS oes evcacaceees 457

SCUSSUS oe cecceceneceaee 461

Atractodes ......0 ec eeeee 297, 554

AVCUATUS oo. cece neces 298

COTAL vie cece ccnccnceece 298

GAGAWUS .. Lecce ceeeees 298

—— lutescens ....cccececees 336

ATRACTOSOMUS ........ 297, 554

Atractosomus.... 300, 314, 317, 584

arcuatuS .,......e.0008. 298

columbicus ........ 298, 300

CONICICOLNS. 6... cece cease 300

COTAX . eee ce ee ee eee eee 298

COTAL op vcayecuvoes 296, 299

cribricollis ............ 300

CrUbricollas 6. ee eee 298

curticollig...........04- 300

curticollis ......006. 298, 301

SerTUgiNeUS ....eeeeeees 300

fusiformis .............- 299

—— fuUsiformis oc ccc cceseees 298

UNNIMUS . cee cccccceeces 554

mucronatus ............ 299

MUCTONALUS 2... ceceecene 298

—— TODUStUS. Loe eee een ees 300

TUDIAUS oo ee ceeceees 298, 300

AUlacosternus .icescececeeee 246

AULONOTHROSCUS ...... 208, 667

Aulonothroscus ......0005 1938, 194

CONSEVICLOP. . oe ce eee eee 208

CONVETGENS... cs ecceseees 208

PPAETOUG oe ssc es ose 8 209

gradatus ...........06. 209

MOVUBUB os bck odin ddi se 208

—— mexicanus.............. 667

——— PUGNAL oo ee cessecseee’ 208

PUNCEATUS Lovee eee ces 208

SOUPTINT oo ive u'olb oes eine 208

—-— SCRAUME eee eee ceees 209

validus re Cree te 208

AUTARCONTES ........0.000- 49

sbdominalis ...5 6.6900 49

WARY vain oBiaas Sh wcic es ¥le0 6 609

INDEX.

Page

Basodonta .. 0. ce ceeveeees 670

NUGPUCOTNIS ve cceseecees 670

Belania viceccccevccnccvcces 463

Belionota calearata ........6. 31

—— chalybeitarsis ......000. 28

Brachycrepis oo. 0. ce ceveveees 389

BRACHYS .......3.0ee0e 131, 665

Brachy8 vicveevseueccveees 1, 187

-—— anthrenoides............ 132

—— anthrenoides........ 138, 154

chapuisi ..........06.- 665

——_ CYANEUS ive rvcrecevenee 145

dimidiatus ............ 134

distinctus ...........00. 1382

floccosuS ........e.e eee 131

JlOCCOSUS eevee eeeeenns 134

hexagonalis ............ 665

leatus ... cece eee cee eee 184

OVATUS . 2, eee ee eee eee 132

pulverosus ........546- 133

scapulosus..........+06. 132

simplex... .. eee eee eee 134

VNCOMIS vv carne ecaee 158

BUPRESTIDM..........004. 1, 663

BUPRESTIS.......... 13, 174, 663

ALEENUALA wee ee ceveuee 8

AUTULENLA vic icccscees 18, 14

—— bifasctata ....ccccereees 102

biplagiata .............. 14

— catoxantha ........ 18, 174

— catovantha ..cscsceeeee 663

— chlorosticta ........0000- 34

——_ Cortest oo. eve seceees 8, 10

—— costulata ...ccecsceeeee 15

—$— CUM cc ncccnceaes 27

CUPLCO-ENEA w.vevceeeaee 11

drummondt ....cceee eee 10

—— flavomarginata........4. 21

OL 5

—— granulifera ....eeceeees g

—— hemorrhoidalis.......... 15

hirtomaculata .......00. 10

interrogationts .......00% 18

jimenezi ...........0.. 663

Timeata cece cee cece 15

MEXICANA vie sececcccues 8

i 182

—— pennicillata .........0. 48

Plcta oe. eee eee ee ee eee 15

piliventris.......... 138, 174

prliventrts vo... eceseees 14,15

principalts.....ccceceees 10

—— quadridentata .......,.. 33

—— SAGINATA oe eeeececceee 8

—— SEX-PUNCALA oe ec eccee 35

—— sphenicus ......eeeceeee 172

tripunctata ..eceseees » 2

Page

Buprestis tubulus ......00..55

VATUEGALA ve veeeecccuee 13

ventralis ..........5005 14

VITGYINUENSIS 6... eee eee 2

6/1), a a 269, 270

MUCLOL 6 ao so 03 wes. -encaeaa’ 270

CALLIMICRA ...... eee cece ees 164

angustula ...........065 166

breviuscula ............ 165

dimidiata .............. 164

—— lucida ................ 165

-—— obtusa ............600. 164

ODEUSA cece cece eeces 165

violaceipennis .......... 165

CALLIRRHIPIS .....0... eee 574

Callirrhipis...... 580, 583, 584, 585

carinifer .............. 576

—— carinifer ...... 575, 577, 579

——childreni .............. 579

—— childrent ........4. 575, 677

—— dilaticollis ............ 578

dulaticollis 575, 576, 577,

579

GOVTYE vv vecccvveneaceees 581

INCONSPICUA vevseveraees 581

laportei ..... cece ee ee eee 582

laportét......es 574, 576, 583

—— mexicana ........--..4. 581

——— MEXICANA «16.60.00. 575, 577

—- obsoleta ........ eee eee 577

——— 0D80letd ov cece cee eees 575

—— simplex ...... Sr eee 581

tENUIPES .. eee eee eens 582

—— LENUMPES oe eee eens 575, 576

—— unicostata...........+.. 678

—— unicostata........4. 574, 575

—— yalida ........eeeee eee 576

—— valida ...seceeeae. 575, 582

——— VENOS% 2... cece sveeee 581

——— VENDSH vee eeeeneee 575, 584

vestita ..... cece ee eee 580:

vestita .... 574,575, 578, 581

Caloderuis wo... cee cece ween 416

Campsosternus .....c eee e eee 292

CAMPYLINI ..... ee cece eee ee 550:

Campyloxenus pyrothorax 457

Cantharis variabilis .......... 621

Carcinognathus .... ccc cece 592

CARDIOPHORINI ............ 415

CARDIOPHORUS.......0. sees 416

Cardiophorus........ 417, 418, 489

aptopoides.............. 416

aptopordes ....csesevveee 417

—— basalts ..ccsccccveveces 422

—— brevis ........ oscscese 417

Page

Cardiophorus brevis .....4..4. 416

CAMPYLINUS viveevevecee 426

CONCOLON. ec cesenceseces 423

ACCUMANUS wiveereceeee 426

evectUsS vi. ce ccveccveees 417

CVOLEUS cece cceccueces 430

SOrVidus. ccc cvccccveces 430

JlOVtd@ voc ivccccccecues 418

hepaticus .eeceseccceees 441

— humeralis ....... tec eeee 416

lateralis vicvecvcecevees 4292

—— HNCArIS oe ccc cece ees 426

—— mexicanus ............ 418

——— MEVICANUS Loe ccceccces 416

—— mirabilis ..ccccce ceca 415

——— PIUINOSUS vee ceeeccees 419

—— SpadtceuS ....ssecveeeee 423

—— spernendus ......++.44. A34.

— troglodytes .........45. 442

—— vulneratus ............ 417

—— VUINEVATUS., Lecce ce cnens 416

CARDIORHINI ........---00- 495

CARDIORHINUS......00.0005- 495

binotatus ..... cece eee 495

STTONAUS. Lecce ce eee aces 496

Calaphagus ..sccscseccveees 511

Catoxantha bicolor........005. 1

Cebrio chevrolatt ......cc eae 569

femoralis oo... cee eee 572

flavipes vec eevee reveee 572

CEBRIONIDH....... 20000 e eee 557

Celadonta oo vcceccceccecces 574

Ceratogony8 ..scccecescssees 670

CEROPHYTUM ........-. 213, 667

Cerophytum ..cveccceveceree 211

fuscicorne.......6.. 213, 667

CHETODACTYLA ......e cease 660

—— lyciformis.............. 661

CHALCANGIUM ....eeeeeeeees 32

longipenne .......seeee 33

CHALCOLEPIDIINI .......4.- 272

CHALCOLEPIDIUS........ 272, 552

Chaicolepidius .. 287, 288, 289, 553

albertist ..... 0 ccc cee eeees 272

angustatus .......+.--- 282

angustatus....eeeees 274, 283

ANGUSELOT .eecerevccaees 277

apacheanus ........++6. 552

apacheanus .... 278, 279, 558

—— approximatus .......-.. 278

approximatus ...... 278, 274

—— attenuatus...........-.. 286

ALTENWAEUS oe cece ceees 275

AUPULENLUS. Wee cce scence 280

—— behrensi .........00+5- 285

—— behrenst......eeeees 273, 275

boisduvaltt ...seeee wees 284

INDEX.

Page

Chalcolepidius bonplandi .... 276

bonplandi ...... 273, 277, 278

boucardi ..........000. 283

boucardi vec eee eee cea 275

chevrolattt,.. 06... cee es 284

circumductus ...ceee eee 282

——— cuneatus ......... 0. ee 286

CUNEATUS wi csc cereeeees 275

desmaresti ............ 284

desmarestt ........ 273, 275

dugesi ...........0000- 287

LT i 275

erythroloma ........ 272, 316

eschscholtzi ...........- 277

eschscholtzt .ecccveceee. 274

— , var. lafarget ...... 276

exquisituS ..........4. 279

exquisitus...... 273, 274, 280

fOrrerl .... cece ee ee eee 281

JOrvErT voce eee eens 273, 27

—— MOPS... eee eee eee eee 282

MOPS vo. ceeeaes 273, 275, 283

—— jamsoni ..............5. 283

JUNSONE viv veesceaes 2738, 275

—— jekeli.................. 285

JOR vv ccc ccc ce cee eaes 275

JUAN voce c en neerennees 276

lacordairel...........-4. 279

lacordairet 273,274,285 552,553

lafargel oo... cee eee ee eee 276

lafargel. ..cccceeees 274, 277

VEMOMNEL. Lecce reve vneee 285

lenZ1 ... eee eee eee eee 285

(2) 2738, 275

limbatus .........0.... 277

limbatus.... 6. cece cece 274

—— mexicanus.............. 284

—— mexicanus,., 273, 275, 285, 286

—— muiszechi.............. 284

—— mmiszecht .......... 273, 275

—— monachus.............. 553

—— MONAChUS ..... eevee eee 552

——— MOTIO. eee eee eee eee 281

——— MOT10. eve ecvcacceeee 274

—— muUrinus................ 283

—— MUPINUS ev cvnes 278, 275

oxydatus ........0.065- 286

OXYAULUS vi cseevees 275, 285

—— pistortus ....seveee 276, 277

POPCALUS. cove ceecevunees 280

PVOCEVUS. co veneer cnn cvees 284

PIUINOSUS ....... ce eee 281

PYUINOSUS .cvesceeecees 274.

YOUVIQ“UEZ]. J... eee eee eee 286

—— TOUT UQUERE Loe eee eens 275

TUDPUPENMS wecesersveee 285

TUGAtUS . ec cece eee eee ees 276

Pave

Chalcolepidius rugatus .... 274, 277

SCVUCCUS voc cece ven eeecee 280:

silbermanni ............ 280

—— silbermannit .... 273, 274, 281

—— suletger. cece ceccceecee 280°

—— tenuis ........ eee eee 287

CONUS Lo ces eeeeee 273, 276

VITENS oe ee ee eee eee eee 280:

VUCNS eee ee cee 274, 283

virginalis ....... veces 281

VITGINALS . cee cer eeees 274

——- viridipilis .... cece eee 287

—— webbi .............06. 278

—— webbi ........ 273, 274, 552

ZONALUS 6. cece eeaee 273, 278

CHALCOLEPIS ........000e8 272

luczoti ... ce eee ee eee eee 272

CHALCOPHORA ........400. 1, 167

COIALH vice cece ee eenes 7

—— mexicana ..........606- 1

noveboracenstS .......00 2

—— planicosta ....ececceceee 171

virginiensis .......... 2, 167

VUGUNENSIS ve veeccevees l

ChOTEA vi cscvcvcvcaccvcuvces 213

CHRYSESTHES .........0000. 2

Chrysesthes. occ cccccececcaes 3

auronotata os... ee eee 2

tripunctata .........6 0. 2

CHRYSOBOTHRIS...... 35, 183, 663

Chrysobothris .... 1, 28, 32, 38, 48

—— ACUMI NATH cece nccne 42

—— acuminipennis ........6 28

—— acutipennis.......... 42, 184

——— aCULIPENMS vee eeecseees 43

—— wqualis...........0000. 184

———_ HICA oo. ccc eee eens 44

RI COW cece v evenness 43, 45

—— analis............00000, 40

A 38

ANTIQUE vee ee ceceeecaeee 43

ALMATA . 6... eee eee eee 663

AStULA Lecce cece eee eee 37

—— atabalipa .iccecsccceees 46

AUSTIN vec ceeecneecnces 40

—— basalts .iccececescees .. 46

Delti ..cc cee eee e eee 35

capitata ...... eee eee 36, 183

CUYCNNENSIS vo cceeveceee 38

—— Chactas .....-......008. 4]

ChACEAS vec vevcvcecvceee 42

chalybeitarsts ..e..eeeee 28

COUATIS vos cevcvcceeeves 35

— convexiuscula ........ .. 88

costifrons..........6% 45, 184

COSLLFTONS oo. sevceeves 82, 44

CUPYEUPES veeveseceee wee 88

678

Page

Chrysobothris cupreo-enea .... 42

CUPTCO-SIGNAEA wo. eveees 42

CUTVICOMS 6. cca cece ees 28

debilis ........... 000 47

debilis ws. eee eee cease 185

delectabilis ............ 183

GeNsSa. .. ee cece eee eee 184

ACSUNALA wivscececreces 36

distincta..........46 45, 185

Auplicata ..cvcsccevsees 35

CXCSA Lee eee eee ee eee 4]

—— femoratd.....cesas 41, 42, 48

foveata ........... ee eee 4]

fUlgurata vocscvsveveees 31

gemmata .......2...0., 36

guatemalensis .......... 40

—— guatemalensis .....+.. 41, 42

ROPFNert ve ccc cvcccceees 30

- ichthyomorpha.......... 35

ignota ..... ee eee ee eee 663

ineequalis ............6. 42

UMNCU vicscvcuvvevcaes 41, 42

UCD viv ecvcvevceeces 41, 42

insidiosa ...........00- 43

—— juncta ...........0000. 38

lateralis ............ 47, 185

OT 31

a a 185

—— megacephala ............ 37

melazona.........6.. 38, 183

MELAZONA vc vcevecevecae 39

—— modesta.........eeeeee, 46

—— multistigmosa........ 46,185

multistigmosa .isecseces 47

nausicaa® ............-- 38

—— NIGr0fasctatd. .ceececacee 38

octocola........ eee ee eee 46

—— phebe ..............4. 37

pusilla veccercccceveves 184

quadriplagiata .......... 45

quadriplagiata ..... ree 663

TEGUIATIB veaccccen vances 29

—— sallei.. i... cee eee eee 37

—— sex-punctata............ 35

—— simplex ..........00008. 4d

sobrina ....... Serer ee 663

—— socialis ....... cee eee 39

— stellifera .............. 44

CU cr 45

—— thomsoni .............. 35

trisionata ..........06.. 39

trochilus-.. 0.0... .0..5 40

viridi-impressa.......... 37

Chrysochrod .....cccceeeveee 1

GINVBA .iscccceeccceces 15, 174

INDEX.

Page

Cinyra costulata ........664- 15

Costulata .. cece eeaee 16, 174

frontalis........... 0000 15

——- sexspinosa...........00. 175

LL 15

uniformis ........e0.00. 174

UNUFOYMNIS vec csccevceee 175

Cladotoma ...... cca ceee Sete 626

CLADUS 2... ec eee ee ee eens 231

Cladus... ccc cc ceces St eeewss 212

maxillaris...........085 232

—— _ manxillarts 6... ccc cee 594

CIAMBUS 6. ec cere eee 599

CUNOCEVA vicecevcccceccveees 124

CNECGLOSSA ....... cece eeee 594

—— brevis.......... cee ee eee 595

COUATIS .ecvcccccccccees 594

lampyroides ..........6. 595

lampyroides .......0. 00 594

CNEOGLOSSINI ......02-00055 594

CoLOBOGASTER ......+4-. 33, 182

Colobogaster wi... cece eevee 1838

chlorosticta ........60.. 34

chlorosticha oie cece ences 183

—— cyanitarsis .......... 34, 182

CYANIEATSIS eee ceeenes 183

10) 1 34

—— infra-viridis ............ 34

—— infra-virtdis oo. cee e eee 182

MuUltisttGMOSa we. .eeeeee 46

puncticollis ............ 33

—— punceticollis ...ccccceees 34

quadridentata ....ce..e 33

ConoderusS ..cccccccccccaceans 341

CONOGNATHA oe. .eee ee eeeee 18

Conognatna .seccvccavcevces 1

Dadentt ..cccrcccveccees 19

pifasciata ..... ec. eee eee 19

cChabrillactt wi cece cece 19

——— EXTMIA vr rccccevcccees 19

—— octoguttata .........06. 19

PVOSEVPINA, ce eecerevvees 19

EVIZONATA vec eceeeveees 19

Coptostethus ..cccceveves 428, 438

CORYMBITES ..eeeceeeeeeee 476

~-— divaricatus ..cceececees 476

--— pilatel ....... eee rsoes 476

({ORYMBITINI, .. se ce eee e cece 476

COSMESUS vse cece ccceccceces 511

DV CVIS. cece cece ene ee dll

MAUTUS occ eecveeevceens 511

Cratonychus ..ccecccesveceecs 452

CASLANUPES Wer ccacercees 453

INEQUALIS . sc eveeeeeess 453

PVOULUS. . ove veveeeereee 453

CREPIDIUS........ cece cecees 316

Page

CrepiMus oo sceccccceees 817, 334

emarginatus ............ 316

Crepidotritus oo... cee eens 389

Crigmus. occ cease 499, 500

Cryphthypnus occ ceeececcees 407

Crypohypnus . 6... cece ceecces 407

CRYPTOHYPNINI .........05. 407

Cryptohypnus .......00. 267, 407

CQUANS Lovee cece ce ceee 408

QLOMUS Lecce eee ec eeees 408

——- bells ieee cecccccccee 364

CUCULIALUS Cee eee eee 408

A 413

—— indicus ...... Dee e ee eens 409

MOPS oc ccececcseseces 413

——— MEXICANUS ee eeceveces 412

—— NWANS eee ececccceees 408

—— oberthiirt coc cece cee e eee 408

—— pectoralis ......cceceeee 413

—— squamifer ........4. 414, 415

CRYPTOSTOMA ..........0005 670

NIQVICOINE....... eee eee 670

SPINUCOPNE vee eeereeraces 670

CTESIBIUS ........eceeeeeees 592

eumolpoides ............ 592

CYATHODERA .....-....005. 304

lanugicollis .......... .. 304

CYLINDRODERUS .......0000. 550

cribricollis ............ 550

——— MEXICANS... eee 550

MELUCANUS oo eee enceees 551

CYPHON. 0... eee eee ee eee 618

Cyphon .... 600, 602, 616, 617, 662

amplicepS...........0. 622

—— ampliceps ... 0... 0.00, 618

—— atratus ........ 0.088. we 621

—— AVALUS Cece eee ccenne 618

—— bifoveolatus ...... eas see 618

bifoveolatus ........ 621, 662

—— guatemalensis .......... 622

—— guatemalensis .......... 618

UMPTCSSUS Lee eccccceees 619

—— impressipennis.......... 620

—— umpressipennis ...... 618, 621

—— ODSCUTUS. Lecce eee 621

—— pallidulus .......000000. 622

~— parallelus .............. 619

~-— parallelus ........4. 618, 620

~-— quadrifoveolatus ........ 619

quadrifoveolatus 618, 620, 621

truncatus .............. 620

CPUNCAMUS eee ceveeeees 618

variabilis .............. 621

variabilts we... cee 618, 622

CYPHOTHORAX.............. 49

Cyphothorat vicecccccccceves 186

Page

Cyphothorax palleolatus ...... 49

DASCILLIDE .......00 +20 eee 586

DASCILLINE ....... 02 eee eee 593

DELTOMETOPUS .......+005: 217

Deltometopus...c.ceceves 211, 228

foveolatus........ cece 217

DEROMECUS ....0--- ec eeeeee 405

trivittatus.............. 405

DIACERUS 2... eee e ee eee eee 223

DIACEVUS. oe cece es 212

antennatus ............ 223

ANtENNATUS ov eve ee eeeee 224

QTISESCENS ..... 0. eee eee 224

DANG. cen 16

DIAPODIUS ..........0000ee 244

Diapodius oc ceccvccvececces 212

bicolor ............000. 244

DICERCA ..... 02.0 eee eee 11, 174

ENCU Lic vcccevneneee 11, 12

geneovarla ........+. 12,174

inconspicua ..........65 11

INCONSPICUA vs cseessvees 12

propinqua..........0-6- 12

DICRANOPSELAPHUS ........ 595

Dicranopselaphus .... 596, 598, 599

flavicornis..........004- 597

JlAUUCOPNIS. .e eevee 596, 598

lesueUrl...... cece eee ee 596

—— pictus ..... ec eee eee eee 596

PUAUS. vee eee nenenees 597

——- rufescens ...........06- 596

VENOSUS... cece ee eee eee 597

VENOSUS ..ecrececceccees 596

DICREPIDIINI .........-200- 293

DICREPIDIUS...... cece e eens 293

Dicrepridius vevccvcveees 295, 489

ChloropterUs ..cecvceeees 328

COFVIDUS 1... eee eee eee 204

COTVINUS. . eee rccncereers 293

lanuginOsuS .....seeeeee 491

laticollis .iececeeeveees 314

palmatus ..ercveees 2938, 295

pectinicornis ...seeeeeees 293

politus ............005. 294.

POUUtUS ve ssvcessveeeees 293

Tamicornig ............ 293

TUMIUCOTNUIS vevececseees 294

serraticorniS..........-- 295

SETTALICOINIS oe cece eevee 293

VIULOSUS voce ececenvvenee 319

Dicronychus ....ceevvveccees 416

DILOBITARSUS ......00eeeees 262

Dilobitarsus ....... Seve eeees 258

pidens ...... eee ee eee 263

—— Bidens .ecrccrveeeve ... 262

INDEX.

Page

Dilobitarsus cornutus ........ 262

eloiMi.... ee ee ee ee ee eee 263

2 262

INOPINUS ...... eee eeeee 262

—— tuberculatus ......000 00s 263

DIMINI 2... cece eee cece eee 476

DIPHYTAXIS ........20 eee eee 239

Diphytaxis.. ccc ccccceces 212, 229

exXcavata ....csscecsees 240

Dipropus angusticollis ........ 327

laticollis. .. cece cecccneee 314

Dirhagus viccscccvcvcvveces 246

DODECACTENUS ......--.0-. 446

—— guatemalensis .......... 447

staudingerl ............ 446

SCAUAINGETE oc cceeceees 447

Dolopius. ccc cvcccecveveves 511

SCUPULATIS Woes cvccereece 522

DRAPETES ... 0... cee ee eee eee 198

Drapetes ......005- 193, 194, 199

affinis ..........0.00-- 202

0 / 199

atelTIMUS .....-...0006- 200

—— ALEYTIMUS . 0. eee eee 199

balteatus .........2.6.. 201

balteatus ...... 199, 202, 203

—— hipustulatus............ 203

bipustulatus .....465 199, 202

brunneus .............. 200

brunneus .......055 198, 199

cingulatus........+6..... 202

CUNG™UIALUS oo ccc eccnveree 199

grandis ........e eee eee 202

GTANMIS Wo. cece cece eens 199

—— hemorrhoidalis ........ 206

hemorrhordalis.......... 199

lateralis. .......0+..0.0. 201

laterals. ..ccccecvececes 199

—— marginicollis .......... 205

MaArgGinveollts...... eee 200

—— NIQEYV oo. eee eee eee aes 207

NUP. ve rccvnvcvveaee 200

nigricans .............. 200

NUGVUCANS ......04., 199, 201

NIQTICEPS .......0..0 00, 205

—— NUGTICEPS oer ee coves 200

Ovalis ....... cece eee 206

OVANS. . occ eevececoeceee 200

—— plagiatus .............. 2038

plagiatus ........4. 199, 204

PT@USTUS wevsveesvecees 203

punctulatus ............ 205

punctulatus ........60.. 200

—— pusillus................ 206

—— pusillus .. ce reeeccveee. 200

— quadrimaculatus........ 204

Page

Drapetes quadrimaculatus .... 199

quadrinotatus ........+. 204

quadrinotatus ...eeseees 199

quadripustulatus ......6+ 204.

—— quadrisignatus........+- 204

Quadrisignatus .....seees 199

ruficollis .....eeeeeeeee 204

ruficollis ..sseceeee 200, 205

sanguinicollis ........ .» 205

—— sanguinicollis ......+66. 200

—— sellatus.........seeeeee 201

—— sellatus .....-ccceee 198, 199

—— sellatus, v. apicalis ...... 201

—— sellatus, v. apicalis ...... 199

sellatus, v. castaneipennis. 201

sellatus, v. castaneipennis . 199

semicinctus ..........8- 202

SCEMIUCINCLUS wo. sereveees 199

semirufUs .....,..200 eee 201

SEMATUTZUS vo ceccecervees 199

—— teeniolatus..........+-+- 203.

—— teniolatus ....ccereecees 199

DRASTERIUS......000.e00 eee 375

Drasteriuss......ees 341, 359, 368

AMADUIS. .. ceca cece eeees 359

Gorsalas . os. veveees 368, 375

GCUZESL Loe eee e eee eee eee 376

AUYOSE vivevvecreverres 375

flavipes 6... esse ee eee ees 376

—— flavipes ....+ pec eeeeees 376

—— livens ....6.+- vee eeeee 375

—— meridionalis............ 375

—— simiolus..........e00e. , 376

——— SIMIOLUS 6. eee nee ees 375

DROMAMOLUS ... ese eee eee eee 217

Dromeolus 212, 216, 217, 228, 225

Dellus.. cee vacccevecees 221

Cinerascens ........++6- 220

CINEFASCENS «1.200 218, 219

—— dilutipes ..........+-5- 221

dilutipes ...+ee0ee 218, 222

fastidiosuS ......eeeee- 223

fastidiosus .....00+ 219, 222

funckt ..cccceveeee wae 222

——— MOCTENS.. seer eee c reece 219

—— MOTENS oo ev vceeeees wee. 218

ornatulug .......eee cree 220

OrnatUlUsS ....eeeeee 218, 221

PLOPETUS ee eres eeenes 220

PPOPCTUS .seceereereeee 218

—— PUSIO..... se cece eee wo. 22)

———_ USI0 vee cnccccrereces 218

salleei .sccseecescseeee 220

sall@t ..... ce eeeee 218, 219

senilis ........ see eee 219

—— BENINIS cra cssvescovvece 218

680

Page

Dromeolus suturalis ........ 222

——— suturalis ..ssevecceeeee 218

—— tetricuS ..... cece eee eeee 223

——— £ELTUCUS 2 cece cer ecenee 219

tripartitus...........6.. 221

—— tripartitus....ccceeeeees 218

——tristIS ... cece eee e ees 219

OT 1 218, 220

VANUS. cece eee ee cece eee 222

VANUS. cee ccecnnevcvnee 218

—— variegatus .........6-. 220

VATIEGAEUS cece eee cevaes 218

DYSCOLOTAXIA ....+-.0..000- 238

Dyscolotarta vevcecsecseccces 212

—— championi.............. 239

EXCEinusS vc ccccvacccccvceeees 511

FXCTOPRIA 1... eee ee cece eeaee 597

ELhOprtd vc vc cecccvecees 596, 598

reticulata .......eee eee 598

vermiculata ........-.... 598

EXLATER ..... eee socnieteigrerea os 377

Ellater so. cece eens 390, 392

AIOPCR vevevccevececves 336

AVCtUS ... cece cece ee eee 377

Dellus occ ccc c cece ccees 354

—— Bidens ...ccasesseseees 263

—— Castanipes .....ceues 344, 453

—— cerambotdes ..cccecceues 293

—— circumscriptus ...... 367, 368

——— CONICUS Lv csescccscvcees 291

——_ El0NGAtusS .reveseversees 344

CVOSUS vs ecececevevcces 245

erythrocephalus ........ 386

fascicularts ...ceceeeees 272

JUAVICOPS. eee vevens cave. 386

flavipes ..... peeteveaas 344

UNSCLUS coseeseceecccees 536

Vegneus oo. cccevecccenes 291

—— WVIdus cw ccccsvecesvccees 344

LODAtUS .iccacessecacoes 344

—— JUSCIOSUS vee ccceececces 270

NUQVOMACULATUS. 66s eee eae 360

NOCTUUCUS Lo. cececeeeaes 466

—— pallidtus ....cceccseee, 259

pectoraus ...cccaceceees 413

—— porcatuS ......006. 277, 278

POSEUCUS Woe ee ccceceseees 350

TAMIUCOYNUS ove vaceceees 293

serraticornis ........ oes. 291

SEPUALUS oo cee cece cee cns 277

VITENS eee acsececcecs 280

—— PYVINUS Lecce cacccvcces 291

EXLATERIDAD oo. cece cece eee 258

EXLATERINI oo. eee e eee eee 375

Elodes. oc cece Cease ee 600

INDEX.

Page

Elodes variabilis oc... ccc eee 621

EEMATHION ..ee eee e eee ees 241

Emathion coc ccccccccveercees 212

ANXIUS woes ee eee eee 241

——— MEP OPOS ove c even eevee 242

——. CUNEALUS veer vce vcees 242

—— cylindricus ....cccceees 243

—— intrusus.......ee eee eens 241

leprieuri ......... ee 0s 241

—— quadraticollis .......... 241

EINGYAULUS 1... cee eee eeeeee 50

Engyaulus ..... Lebeteeee uae 168

—— pulchellus.............. 50

pulchellus ..ccceccecceee 51

rubrovittatus ......0.... 50

rubrovittatus .ssceseees 664.

ENTOMOPHTHALMUS......+... 245

Entomophthalmus .... 218, 247, 250

americanus ............ 245

AMEPICANUS ws. 6000 246, 255

cS) 0) a 246

FUGAX. eee eee eee eee 246

minutus..... ete eeu a 246

ESTHESOPUS ........00eeeeee 439

Eisthesopus ..scecceee 416, 427, 543

apicatus........ eee e eee 443

—— AJNCALUS ccc nee enee 440

—— atripennis .............. 443

—— ALYUPENNIS 6. eee eee ceene 440

0) ) 443

bifasciatus ..........0. 445

bifasciatus ......4. 439, 440

breviusculus............ 444

breviusculus ....e..e0 eee 440

CATDONALIUS 6. eee c eee ces 442

Coarctatus ....... eee ee ee 445

COAVCLALUS . ov cece eee 439, 440

delinttor vec ccccvevcees 446

AUSPEV8US oe eee cee eee 441

—— ebeninus ...........05. 449

CDENINUS. Loe c eee ccucces 440

fuscicornis ..........0. 442

FUSCICOINIS. 6 vce ee neces 440

hepaticus ...........4.. 44]

hepaticus....... 435, 440, 442

— humilis................ 44]

—— humilis ........ 432, 433, 440

——— MUIINUS ve eee eeae 441, 442

—— nitidulus .............. 444

—— nitidulus .......... 440, 443

—— PUTCUS ec ccccccccces 44]

—— phisalus. 0... ccc cee 446

placidus ...ccecceeeeee 446

—— quadripustulatus ........ 443

quadripustulatus ........ 440

scapularis.............. 445

Page

Esthesopus scapularis. . 439, 440, 446

troglodytes ....... wee 442

troglodytes ......+. 440, 441

BHUBRIINR os. bao na ea ev ote 595

Eucamptus cuspidatus ........ 288

EUCHROMA .........0000- 5, 169

Euchroma oo ccccccccc ec eeeee 1

COLUMBICA 66. cee vee ee eee 5

GJUJANtE vecsvccccevees 5

goliath ........00. eee 5, 169

EVUCINETINE vos ecceeeeeees 599

EQUCINETUS .....ccceeeeeeee 599

MOTTO vicecncavevacace 600

strigipennis ............ 599

SEYUGOSUS cave caecceeees 600

SUDALUMATIS coccevcveees 599

SUbStIALUS oe cece eee 599

terminalis ...ccceeceeeee 600

EUCNEMIDE ........006. 210, 667

Etucneniis atropos ...ceveecees 242

foveolatus voce ceceveeee 217

humeralis .... cee cee 252

SENEGALENSIS LL eseveveve 255

EUDACTYLINI ....... cece eee 337

EXUDACTYLUS. 0... 0.0 ee ee eee 337

Eudactylus. ccc cc ccc cceee cae 460

alboguttatus .......e000. 339

—— boucardi .............. 338

Doucardt .iceecevcecees 387

——— CASEUS vec ccccvcccveves 338

—— dimidiatus....cccccvcces 3838

—— eburatus ...........06, 339

—— eburatus vecscccvaccees 338

——orandini .............. 338

——— JPANdint vee ecvvvvvees 887

—— partitus........... eee 338

EURACHIS .... cece eee eee 224

Eurdchts vivvcvccvcccees 211, 240

elegans ......e cee cena 225

BUred oc cc nee ne eeeee 597

Euryptychus ..c.cceeeeees 244, 245

Eustrophus.....+. She wae Ws we 599

EXSTHETUS .....eceeeeeee 192

dasytoides.............. 193

FARSUS . 1... cece ee eee eee 253

FArsus vec cce cee ee cree 2138, 254

C1EVALUS . icc ceceveveves 253

oblitus ........ eee ee eee 253

ObSCULUS ... cece eee eee 253

FORNAX 2... eee eee 225, 668

Fornax .... 212, 217, 229, 231, 232,

- 288, 287, 238, 239

—— Ad dttus oe cv ccccccecces 231

——adjectus .............. 230

adjectUusS........ 226, 231, 238

Page

Fornax affinis .............. 228

affinis. . 226, 227, 229, 232, 669

—— atripennis .............. 227

—— atripennis ....... rn 226

—— badius we. ce eee c cece ees 231

—— carinifrons ............ 230

—— carinefrons vie. ceeeeee 226

—— castaneipennis ...... 228, 668

—— castanetpennis .......... 226

— confusus .............. 228

——— CONFUSUS Loe eeeeeeceees 226

GUDDOSUS Loe eee cece eeee 230

granulatus...........5.. 668

—— guadeloupensis .........4. 227

—— infrequens.............. 227

INFLEQUENS vs eeeseeenes 226

IMSItUS ...... eee eee eee 231

IMSUUS vv ecevceceecees 226

—— Lacerda 1... cece ccuenes 230

—— mendax................ 229

MENAAL . cv coceceeeveees 226

notabilis .......e.--.0e- 227

NOLADUS. . eer ecveecvaces 226

obrutus..........5.008: 229

ODTUEUS . oc cere eeeeceecs 226

petit ... cee eee e ee eeeee 228

pert... .essseeee eecees 226

sceleratus ......e0..005- 229

SCElErAtUS Lo eveceecvcees 226

SINUAEUS ve ccerececeacs 231

truncatus .............. 229

ETUNCATUS 6... eve ceaeees 226

———variipennis ............ 227

VATUPENNIS ve eeeeeeeens 226

ventralis .....eeeee 230, 669

Furcipalpus ..... dv ecseesees 596

Galba bisulcata ...cccceceeees 215

leprieurt ss... eee eee 241

MEXICANA .eececececucas 242

GAaMBPINUS 0... eve cee cc neeees 455

GASTRAULACUS......00eeeeee 215

GFastraulacus ....ceccevececes 211

ALTATUS Lo ccc eee ceceeess 215

bisulcatus .........-.... 215

CavifYons ....ceeeeee eee 215

Gauroderus ..ceeeeees cee eee 416

GLYPHONYX ...... eee eee eee 533

Glyphonyr....ccesccercveees 549

—— angulatus .............. 540

angulatus ...... 534, 535, 546

brevicollis..,.........6. 537

brevicollis ....0+.... 534, 540

——— CinctUS ........06--.00- 546

CINCEUS oo. ce revaces 535, 547

cruciellus .............. 547

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 1, August "1897.

INDEX.

Page

Glyphonyx cruciellus, , 586, 544, 545,

546, 548

cuneatus .....ee rere eee 538

cuneatus ...... oo. 535, 544

depressus ......ee.eeeee 541

—— AEP eSSUS vee reccceeeeee 535

Augesi ....... cece ee eee 536

AUGESE vi vsvcercnvveces 534

——ebeninus .,..........4. 544

——ebeninus ...... 535, 546, 549

—— fasciatus ........,.006. 546

—— fasctatus wicecsececcaes 535

JUAVipeS vicvcccvvceveves 543

51) 0 544

JPOhrt vo vc ccncevcccneces 535

fusculus.....4. ve ceeeres 539

laticollis .........-04-. 543

—— laticollis... cece ceceees 535

—— mimeticus.............. 543

—— mimeticus .......06. 534, 535

—— MINIMUS ..... eee sees 548

——— MUNMIMUS ve evececvaee 536

—— N1gTItUS. 6... eee eee eee 542

NUGTUUS vo cecoes 535, 545, 549

parallelus ...........04. 548

parallelus ..ss..eees 536, 538

PYCOX vee e eee eee ee eee 545

—— PV COL s. seven 585, 547, 548

propinquus ..........-. 540

PYOPINQUUS .svceaes 535, 541

PUMUMUS ooo cee c ee enecees 537

quadraticollis .......... 536

quadraticollis .. 534,538, 539,

541, 545, 548

quadrinotatus .......... 545

quadrinotatus ...... 535, 546

recticollis ...... 536, 537, 541

TUQIPCMNIS.....- see ee eee 539

TUGUPENMS sve vveveveces 535

SPP vi ceeeeee eee cenee 556

teapensiS .......eeee ees 547

teapenstS ...+4. 536, 544, 545

tENUIS .. cee seer eee eees 542

ECNWIS vc vse nvvveee 535, 540

LESEACEUS vc ev vceees 541, 545

vittatus..... eee eee eee 539

VUETALUS oo cece cence 535, 540

GYASCUTUS 2... cece eeeee 7,171

caelatus ..... eee ee eee 7,171

—— planicosta........+000e- 171

——— sphenicuS ...svcceeerees 172

HALECIA 2... cee eee eee 5, 169

Ts 170

beltii .. cee ee eee eee ees 6

Deltit vo. ce cceeeee 7,170,171

Page

Halecia chrysodemoides ...... 5

chrysodemotdes .......04 169

cupreosignata .......4. . 6

debyi..... eee e ee ee eee 169

CYANCO-NOLALA vs eseeeves 170

CTYEhTOPUS veveceeveres 169

GENTS .icvcvccceveoers 169

guttata oo. cece eeeeeeees 6

laticollis ........000- .. 170

octopunctata ......cereee 170

pulverulenta...........- 170

PUGUPENNIS. oc ccveveees 6

suffusa 2... cece eee eee 170

Haplocnemus vc ccccvccceeces 193

HAPLOGLOSSA ..eee ee eee eee 623

angustata ........608 ... 625

ANGUSEAEA Vcc eceeeees 623

—— collaris ...............- 624

COLLATUS wo. seve veves 623, 625

ferruginea ..... +. eee eee 625

—— marginata..... sececeess 623

Salli... ccc ee ceee cence 623

1 7 a 624

HAPLOGLOSSINI ......0000-- 623

HELODES ..... cc cece ween 600

Flelodes oc csc cece cecaee 594, 602

maculicollis ..cesceeeeee 600

——. MALGYINAA.. ve cceccceeee 600

MEXICANA 1... eee ee eee 600

FIELODINA oo. eee eee eee ee 600

HEMICREPIDIINI ............ 477

HEMICREPIDIUS ............ 477

FHemicrepidius ..cccecceceees 483

acuminatus .......6.4-- 482

ACUMINALUS .icececceees 478

amMitInUS ..........60., 485

amitinus .. 478, 484, 486, 487

AMONUS ser sscersceveves 477

aterrimus ........2+.0-- 479

aterrimus .....4.4. cores. 478

biformis ........00.00- 488

DUfOrMIS. cc ececceee 477,479

bivittatus .............. 480

bivittatus ......60 wees. 478

candezel ....e..eeeeeee 486

candezet......+. 478, 483, 484

carbonatus ............ 479

carbonatus .... 477,478, 582

consanguineus .......... 483

- CONSANGUINCUS ..eveveees 478

consobrinus ............ 482

CONSODTINUS 6. .ceceveeee 478

cruciatus .......... eee 487

cruciatus ...... 479, 488, 489

Aeceptor cc ssvecevsevees 481

flavipes ........eee eens 485

682

Page

Hemicrepidius flavipes 477, 478, 481

QEYMANUS oo eee eerereees 483

GeTMANUS wevecseneevees 478

RAvtUs.cccvcccevcccceces 479

—— instabilis ........0..-6- 480

instabilis .. 477, 478, 481, 482,

485, 486, 518

—— leucostigma ......+- 480, 481

longicollis........+.--6- 481

longicollis 477,478, 484, 486, 489

longicornis ........++-- 486

longicornis.....+ 479, 484, 487

Longipennts ..seevereres 477

—— nitidus ..........e eee ee 487

—— MU1AUS re cvccvecereees 479

parvulus .........eeee, 484.

Parvulus vivceveeee 477, 478

—— patruclis ............5. 484

patruelis .. 477, 478, 482, 485

—— pictipes...........0 eee 488

—— pictipes.... 478, 479, 487, 489

HEMIRHIPUS....... wees. 201, 552

—— bimaculatus ..........6. 271

—— bimaculatus .......0000s 552

decorus....... es ovteeee 272

GCCOTUS coves vvcnceenes 271

fairMairet. ... 6.0 e. 271, 552

fascicularis ..........5. 272

fascicularis ........ 271, 298

ferrugineus ............ 552

——— TOJASL. ce vcvccsceveces 271

VENOSUS Wr eveeereceeaees 272

Hlemirrhaphes .scccecccveees 413

HENECOSOMA ....eeeeeeeeee 240

Henecosoma .icccccsccereces 212

—-discicolle .............. 240

HETEROCREPIDIUS .......... 297

FHleterocreprdius oo. cevceevvees 307

CYOCEYPES vevceseveveees 307

—glis. e160. eees ab ee ween. 3806

megalops ......eee eens 297

HETERODERES ...........00- 356

gibbulus ..........eees 358

GObUlUs. ce ecececenes 357

granulatus .........0.. 358

GTONULALUS Lecce eee, 357

heterostixus ............ 357

— heterostixus ............ 358

—— Hants vieeccccceeeeees 357

TODUSLUS. vec ecevccreeces 359

SOVdIdUS........ eee ee eee 357

SOTAUAUS. .. eee ce ee eeaee 358

Heteropus ...... eben ee cow ens 297

Heterostethus......040. ies an 556

JOUCEUS. eee cccveeeceuae 556

HIPPOMELAS,...005.e eee 7,171

INDEX.

Page

Hippomelas ..ccccevvceccees 8

MENLUCONUS. ce veccceveces 8

saginatus ..........6, 8, 171

SAGINALUS wecccvereveece 172

sphenicus ..........++6- 172

Hodocerus ........ eee e eee 239

HORISTONOTUS ......0 ee ee eee 428

Horistonotus .. 416, 426, 488, 439,

446, 543, 668

—— apterus ..... eee eee eee 438

APteVUs ..cccceveees 428, 430

AStHENICUS ... cer veeenes 432

bicinctus ........ ee ees 436

bicinctus ...... 429, 489, 446

brunneus ........0e000- 437

DrUNNCUS ..ececeeeees .. 480

a) 438

CTUCIFEr. 6. eae 434, 486, 488

—— dilaticornis ............ 431

dilaticornis .....0.. 428, 429

discoideus...........00- 438

—— discoideus .....caseveeee 430

duplicatus.......+....-- 434

—— duplicatus...... 429, 435, 486

exoletus...... eae sseeees 430

evoletus.....66. 427, 428, 431

fasciatus ...... cee ee eee 437

JASCIATUS . oa receees 430, 488

—— flavipes ........eee eens 434

JlAvUpeS cece ccccereccees 429

—— hemorrhoidalis ........ 431

—— hemorrhordalis 429, 437

——_ MIXtus ............008, 435

——— MIXTUS voc eeveeeaee 429, 486

—— nigricornis ............ 436

NUGTUCOTNIS. 6 cee ceevceeee 430

obliteratus ........005 432

obliteratus .... 429, 488, 435

—— parmenoides ............ 438

—— pedestris ..........0 00. 430

pedestriS .sicecsseceeee 428

rotundicollis............ 435

rotundicollis .......6.00. 429

rufiventris............4. 431

PUfWENETIS. .o vee eee eevee 429

spernendus ........64: 434

SPCYNENAUS. 6... ceveceaee 429

sulcifer .........6. 0000. 433

SULCUF EL ve ceceeceencees 429

tetraspilotus ....... cee. 434

trumcatus ...........00. 433

—— truncatus .....e.ceeeees 429

—— unitinctus ......6... 437, 438

—— vulneratus .. oc eeevaecees 417

zunilensis ...........00. 439

BUNUENSIS vovscevcaceaee 430

Page

Hydroporus oc. cece eceveees 140

Lepidus vec rcvcvccecvees 140

ylecoetus oo... ccc cecceccncee 257

Hylochares subacutus......0.4. 255

FIYPERANTHA ......eeeeeeee 18

CONSOLTINGA oe eee ceveces 18

interrogationis .......... 18

FIYPNOIDUS «1... eee eee eae . 407

Hy pnovdus . 6. ci ccceccrvccces 408

CANESCEDS ... ee eee e ees 409

—— CANESCENS ....sseeee 408, 410

— cucullatus...5.......... ‘408

—— cucullatus .. ce cercceees 407

—— guatemalensis .......... 410

—— guatemalensis ......000. 408

—— mexicanus.......... we. 412

———_ MEXICANUS cee eecccveces 408

—— obliquatulus ........ 408, 412

—— pectoralis ...........06. 413

pectoralis .......... 408, 411

—— » VAY. UNOPS... eevee 413

quadriplagiatus ........ 411

—— quadriplagiatus .... 408, 412

—— quadrisignatus.......... 412

—— quadrisignatus ...... 408, 413

teapensiS ..........000e 410

LEUPENSIS vivecsecseeees 408

tetraspilotus ..........6- 411

tetraspilotus .....ee.eeee 408

Hypoch@tes ...cceeccveceees 193

FTypocelus oc cee cee e nee 240

FIYPODESINI ....... 0... cee ee 490

FLIYPODESIS 1... eee cece ee eee 490

—— aureipilis .............. 492

—— aureipilis .......00. 490, 491

—— auricoma .............. 493

—— auricoma...... 490, 491, 494

—— chrysomalla ............ 49]

chrysomalla .......4. 492, 493.

cribricollis.............4. 492

crtbricollts .. eee cee eeee 49]

penicillata...........0.. 493.

penicllata ......eae veces 49]

—— punctata .............. 493

—— punctata .......6.. 491, 492

sericea ........ vee eeeee 491

SETUCEA voce ec eaene 492, 554

viridipennis ..........+. 494

—— viridipennis ........ 490, 491

Vittata so... cece eee eee 494

VUEAA viiceseevevees .. 491

Hypolithus. cc. cc ceeececneees 407

Hypsiophthalmus ... 0.0.04. .. 463

IDIOTARSUS ........00- ceeee 215

Tdiotarsus oi... cece ceaee 211, 214

INDEX 683

Page Page Page

Idiotarsus estriatus .......... 215 Ischiodontus melas ...... 317, 334 Lacon curtus............++.. 264

MUECUS 6. ce ceceeeeeees 216 metallicus...........06. 328 lezeleuci ..........008. 265

Tsar thrus vi cccccccccccccees 225 Metallicus .iseccvevceces 331 ——— lezeleuct. oe ceeees 264, 266

ISCHIODONTUS .............. 316 —— nigricornis ............ 324 paleatus ..... eee eee 267

Ischiodontus .......+40... 305, 317 —— nigricornis. . 323, 325, 333, 334 paleatus..... eee eeeees 264

eeneipennis ............ 330 PUCIPENNIS os. ce ceeeeeeee 323 PECLANGUIATIS .. 600000000. 264

—— alopex vi... ec cece ee eee 336 PINQUIS ......e ee eee eee 319 scarrosus ..... seeeeeees 266

—— 0peH ve eeeecscccceees 335 —— posticus......... 0.0008. 320 SCATTOSUS wesveccees 264, 265

—— ANCEPS . 1... eee eee eee 324 POSEICUS occ ee cecceeeees 323 suillus ..........00.0e 265

—— anceps .... 319, 320, 321, 322, prasinopterus .......... 329 SULUUS eee ccseccceues 264

328, 833 prasinopterus .......44. 330 truquil ..... see. eee ee 265

—— angustatus ............ 321 —— punctatus ..eccccccsaeee 335 YF UYUIE occ cece cece 264

angustipennis .......... 326 —— puncticollis ....,...000. 318 —— tuspanensis ............ 264

angustipennis ...... 321, 325 quadraticollis .......... 326 CUSPANENSIS ......4. 265, 266

—— approximatus .......... 326 resplendens ............ BOT | Latrus oo eee cece cee eee 586

—— aterrimus .............. 334 resplendens ........ 316, 317 | Lampetis auropunctata ...... 663

—— aterrimus .......4.. 317, 832 rufiventris.......0ees ees 333 guatemalensts .e.csssees 173

—— atricornis .............. 322 rUfiVentris......cecveae. 317 mons ...... beeen eens 8

—— atricornis ..... 0.6.60 es 323 rufulus ..........00000. 325 ODSCUTA oe eceeccevevcees 172

—— atroceruleus............ 327 PUFULUS vee cveceneeees 326 POLYMUA ve cevevncenes 8, 10

atroceruleus........ 316, 317 TULUS . 6... eee cece e ees 335 SEVETUSSUMA —saseeecceees 172

—— badius ................ 326 smaragdinus.....0.. 328, 329 | Latipalpis cortest ........406. 8

—— badius 0... ee eee, 320, 321 subparallelus .......... 321 | LerIopLeuRA............ 154, 666

balteatus .............. 324 ——— SUS Lec cece cece a eee 325 Letopleurd voc vecveeveceecees 160

balteatus ..........0 eee 333 —— thoracicus.............. 323 eeneifrons ......... 6-00. 160

—— bifasciatus ............ 337 tuspanus ......e.eeeeee 320 basalis .......4. teases 158

brevicollts ...... cece 336 —— tuspanus .......5.. 319, 326 belti ........ eee, cesses 666

brevis oo... cece ee ee eee 335 vetulus ...... ese eee eee 319 contigua ........ Seeees 164

carinicornis ............ 318 VITENS oo e eee ee ee eee 327 —— CONEIGUA .sceeveney 155, 666

CAPINUCOYNIS ve eee eeeeees 317 Viridis ..... eee cess eens BBL | —— CONVEXA...... ee eeeeeee 160

chiriquensis ............ 323 CY B28 | —— CTASSA oo. see eee e eee eee 155

—— chloropterus............ 328 —— yucatecus ...........0., 319 PASSA vee sees 156, 160

chloropterus .... 317, 329, 331 ISCHIUS 01... ccc cece en eeee 475 —— difficilis............e ee, 161

eroctcollis 6.1... ee eens 301 hhaagi... ss see eee e ee eee 475 Civisd ss. sees eee ee eee 155

CTUCIALUS ooo ee eee cece, 337 | ISOPHENUS ........0eeeeees 175 ineequalis ....+......00, 666

—— cyanopterus ............ 327 parallelus .............. 176 inconspicua ....+.+...6, 162

debilis ........... 0000, 836 | IsonHIPts ...........00..8. 214 intermedia .........40. 154

eletus oc. ceceveceues 885 | Isorhipis.......cccceceeeeues 211 interrupta ...+.seeeeeee, 158

denticornis ............ 329 holosericea .......004-- 214 | ——jubilans................ 163

denticornis. .316, 317, 330, 331 —— NUGTUCEPS vv ccceccvnces 214 lata ce cece eee eee eeeaee 666

depressus ............0. 320 ODSCUTICOTNIS 4... eee eee 214 | ——lateralis..............4. 159

elongatus .............. 320 | ——vagans .........000000. 214 laterauts sessaseveveves 160

erythroderus .......... 332 leViS 1... eee eee ee eens 666

erythroderus 317, 328, 325, 333 LACHNODACTYLA ...e eee ee eee 658 longula ..........e cece. 162

fasciatus... ee cece eee 337 Lachnodactyla wc. ccc ecceens 627 —— MINUEA «6. cece eee eens 666

—— fUSCUS Loe ee ceceeccasee 319 monticola ..........0005 659 | ——NIQT@... pee eeeeeeeeees 159

—— griseipilis .............. 332 MONECOIA ..evveceevanes 660 nitidicollis ............ 666

GTIsetpilts oer eccccceces 317 —— parviscutum............ 659 —— parvula ....... cece eee ee 161

hawaiensis.........000e. B16 | LACON 2... . cee cee e eee 263 parvula ..... te eeeees ++ 162

ichthydius ............ 334 | Lacon.......ceeeees 258, 268,415 | —— placida ......... seveeee 163

ichthydius...... 310, 835, 837 aristatus .........e 0s 266 | —— plactda .........+ se++ 160

INOYNALUS we se eeeee 318, 319 AVIstatUs .eeececees 264, 267 —— pOlita...ceesecseveveees 162

limbatus ...........0.. 336 brevis... eee ee eee eee 265 | —— polttr........ bette eeeee 163

—— marginatus ............ 330 brevis... cccceccccucuce 264. —— pulchra................ 156

—— marginatus .... 316, 317, 321 calamitosus ..........6. 266 —— pulchra......0. 157, 158, 159

—— Mela8........ eee eee eee 333 CHAMIUOSUS covenceveees 264 —— puncticeps....... seseees 156

482

684

Page

Levopleura puncticeps .... 158, 159

trivialis....... cece ee eee 159

EVWiAlts occa cc ee nneee 160

Venusta .... cece eee eens 157

viridicollis..........006- 158

viridifrons..........+44- 156

Deptt. cc cccccvaceccsaccces 16

POlYSLUGMA csr scercvcvees 15

LIMONIUS ..... ccc eee eee 455

TAMONIUS occ ecceccees 462, 480

longulus ..........64. , 455

quadraticollis .......... 455

Dissodes .....ccccecvcees 194, 198

LISSOMUS ..... cece eee ee eee 194

TASSOMUS. ove vce ce reece vees 193

bicolor ............005- 197

Brcolor woe eee e eee wees 198

bicolor, v. rufo-castaneus. . 197

CrUbratUs wevcecccrvaes 195

discedens .............. 198

CDENINUS. Levee ceceeeees 195

—— episcopalis ............ 197

CpisCopalis. ..ccccceveeee 198

flavipennis ..........0. 198

JUAVIPENNIS. ces scceccaee , 198

foveolatus ............ 195

gagatinus ...........6.. 194

GAGATUNUS vec cecevcnceee 195

—— impressifrons .......... 195

inopinatus,..........66. 197

—— lacordairet........006 ... 195

pilarius ..... wav deuwree's 196

a , v. rufo-testaceus .. 196

plagiatus ..ceccsacveees 203

—— punctulatus ............ 195

. punctulatus ...ceereeees 196

trapezoideus............ 196

ustulatus .........0006, 195

Tiissothyreus .. cc ceccseceeeee 256

—— histrio .....6. eenaseds. BOO

BIUB ic cis dacoes veeee 185, 666

—— MNEUS ... ee cesses eee 666

amabilis ......... ce eee 666

BIO fi seeeveececess ». 185

ALOS icv i ve vanveveuces 1386

Aeplanatus..ee.cercseeee 146

dissimilis ....... vere wa ars 135

—— dissimtlis oo... . cece eee 163

——parvulus .,............ 136

—— variabilis .............. 136

LDN oe cick e cee canee 496

BsOVNUS 66 fob cca ta se ee 499

LIudius 882, 390, 476, 500, 505, 506

breviusculus............ 503

—— breviusculus ........0.4. 500

—— brunmipilis ......... ... 502

“INDEX.

. Page

Ludius cylindricollis ........ 501

cylindricollis ..... ce... es 500

—— depressus .........-.0ee 505

AeEpreSSUS .revcsoveeeees 500 |

hepaticus ...... 500, 501, 506

INNOLIUS vevecvecveraees 505

—— isthmicus ............-. 502

—— isthmicus ..sceceees 500, 504

—— meridanus...... ease agceese 507

—— meridanus..... 6.6.4. 501, 504

—— nigricollis.............. 501

—— nigricollis .......00 500, 502

PENINSUlATIS ..eceeceeees 507

—— physorhinus ..........-. 505

—— physorhinus .... 500, 502, 503

rubicundus ..........6. 504

rubicundus .....04. 500, 507

setosus ...... Send eea ne 505

SCLOSUS 2... cues 501, 506, 507

subopacus.............- 503

SUDOPACUS .... eee eee 500, 504

subsericeus ............ 502

SUDSETUCEUS. ve ve eeeae 500, 503

LELANUS oo. ce caceces 506, 507

tropicalis .............. 504

CrOpwcalts vie eevee ecaees 500

Tycoperdind ..cvevccccccvees 647

Macraulacus oo... ccc ccevcaee 239

Malachius ...cccec cece cveeee 619

Mastogentus ...seccecceccaes 193

Mecothorat .isccccscccveeee 405

Megacnemis ........ ae 496

MEGAPENTHES.......... 377, 556

Megapenthes .... 380, 384, 885, 390

asperatus ...... are 381

ASPCVAtUS vee eeevsceeeas 382

athoides .............. 384

badius .............0., 383

bicarinatus ............ 380

—— bicarinatus .... 378, 381, 556

bicostatus .........0.06- 556

brasilianus ............ 378

brastlianus ...ccseeeees 379

cincticollis ............ 379

CinctiCOls. 6... eeeeeeee 378

cinnamomeus .......... 379

CINNAMOMEUS vee eeeeaee 384

conicicollis ............ 383

furvus ..... vecaeeeeens 377

——— fUTVUS oe cceevccenes 378

—— fusiformis.............. 884

—— fustformis oc. ceccceees 377

longitarsis.............. 882

longitarsts .....cceeeeeee 883

—— melanotoides .......... 882

Page

Megapenthes melanotoides .... 383

MECXICANUS...... eee ee eee 380

MELICANUS oo eeevccecnnes 881 |

OpACUlUs....scccsees 379, 381

rubigineus. .....26+226+- 378

TUDIGINCUS . 6.102006 379, 884

TUPUBBTIB ai aes ode ess 880

SObYINUS.... eee eee eee ee 381

SOOTUNUB os ov eae ns 380, 382

—— T@M1ATUS cece ec enee 884

teDialis vive cece eee nees 378

Melanactes piceus ..... 115-008 510

MELANOPHILA ...... 16, 176, 663

Melanophila ..ccccccesernees 175

ALLA Loe cece eee e ees 17,176

GEVA ccc ccna eee nees 663

inflammata vicceccsreee 17

limbata .........06. 16,176

——— N9TA oe eee cece ee eee 663,

notat® ccs cece eceeeee 17

viridiobscura ........4. 16

MELANOTINI....... bese sisee 446

Melanotopsis .. ccc. cceveceves 448

MELANOTUS ..... eee ee eee 452

Melanotus .... ccc cece 238, 448

CAVINICOMS . Lecce ences 453

carinifer ...........0e 452

castanipes ....... eee eee 453

CASCANUPES oc ve ceceeeeee 452

—— COMMUNTS occ cccccccees 454

CYUDULOSUS Wee cere ceens 454

CUNCOLUS. cece ccceccevace 448

CDENINUS secesseecseees 448

CXUDETANS wo cavcacecaces 454

lUctdus ...cevccccceeees 451

—— MeEXICANUS wc. cece eeee 454.

MEXLICANUS 6. ccceceveves 452

—— prolixus........ Spasaees 453,

PVONLUS. 6c eeceeves 449, 452

TOAPUGUERE occ ssvececoees 451

PUBICUNAUS wesceveesaee 448

TUIPCS vi vvavcvncevvees 454

rugulipennis............ 454

——— _ rugulipennts oo. .ceeceeee 452

MELASIS . 0.0... cece cece eee 213

Melasts oo ccccccccucvccvcees 211

rufipalpis ..... eee. e eee 213

MERISTHUS 1... cc cece eee eeee 267

Mertsthus oo. cc ceccccccvcces 415

cristatuS ....... eee eee 268

—— scobinula .............. 268

SCODINUTA wi ccacereveees 269

SCLATIUS occ tne e eens 268

SQUAMIZEL... 6.6... wee 269

SQUAMUGE! v6 se eevereeae 268

———- LEXUNUS Lo cevvcccvevcces 268

Page

Metabletus lepreeurt .........+- 241

MICRASTA ........ rrr 665

amplithorax ............ 666

cyanipennis ............ 665

meligethoides .......... 666

—— typica ..........0000., 665

MicROGLYPHONYX .......... 549

—— coarctatus........cce0e- 550

MICRORHAGUS .......... 246, 669

Microrhagus .... 211, 218, 224, 245,

258, 254, 255

—— amazonicus ........ 248, 249

—— Milutus occ vcceceveees 250

CGTEGIUS Le cece ceceveees 251

elatuS..... cee ee eee 251

ClatUS. 6. cee ceeveees 247, 252

—— franatus ............5. 249

JTENAUS wiv cecevee eens 247

Horn. .... eee ee eee eee 669

—— humeralis .............. 252

Ahumeralis ... cece aee 247, 258

insidlOSUS ....... eee eee 251

INSUALOSUS vecveccceraces 247

IntruslS.............08. 249

WNETUSUS. cece ececccceees 247

—— maculicollis............ 250

maculicollis ........ 247, 251

—— marcidus ........0+20.. 250

MAVCIUUS .ecvevcececacs 247

—— meticulosus ... ,....... 252

meticulosUsS ......ereeee 247

protractus,....seeeeeee 250

PVOLTACENS We ccc veveeeees 247

—— PYENEUS vive ceccaes 248, 250

repandus .....+.....05- 248

PEPANUUS ..sceacees 247, 249

TUACEPS... cece eee ee eee 249

TUFICEPS vie escvereccenes 247

S€POSitUS .......0e ee eee 248

SCPOSUUS vevevsseeeaves 247

SUEUTALIS vec cveeceveees 250

thoracicus ...........06- 252

EROPACICUS .. ee vcceceeees 247

——_ UNICUS ... cece reve eeeee 248

——— UNICUS ce ecccceveceees 247

MIxoOCHLORUS ........0..44- 167

—— lateralis... ..... ccc eee eee 168

—— suturalis ..........005. 168

Monadicus bil@sus.........000. 409

MODIICEPS . 1.1200 eee ee 409

Monelasmus ....0..0000. 389, 390

AUGUSLL wes seeee 390, 398, 394

—— JuyANeNSI8 oi cevereees 390

JAMAUME. va veccccevvaees 590

MOPUEUS. voce veecees 890, 897

MoNOCREPIDIINI............ 841

INDEX.

Page

MONOCREPIDIUS ........00-- 341

Monocrepidius ...... 346, 356, 359

albinus ........50..000s 346

—— amabilis....cccccccsenes 359

—— angulatus oo. ..cccccecee 3438

—— angusticollis............ 347

annulicornis ............ 346

—— apiatus ........ wee e eens 347

—— APNATUS Lovee ceveseveea 341

——athoides .............. 346

—— AThOUdES oe ce cencvens 347

——— AVETSUS ..eseeceeesacees 352

—— aVESUS ........ 850, 3538, 354

—— balent. sc vccccvccvvees 353

bellus 2... ccc eee eee eee 354

—— bellus icc vcvvvcccvnees 341

belti ... cc cece eee eee eee 349

bipustulatus..........6. 352

bipustulatus ........ 350, 353

CONUS We ec eee eee eee ees 345

AeCtMUS .... cece eee 342, 343

—— depressipennis .......... 343

—— ClONGALUS Love eevceevees 344

—— exclamationis .......... 350

—— exclamationis ...... 351, 853

—— flavangulus ........+-.. 3438

Jlavangulus ....sue. 344, 346

IMCOMMOMUS .. 64.065 350, 351

inconstans..........0006+ 351

UMCONSEANS wo evecccsences 353

—— LAS Le iccecccccnccne 353

LWWERS . cea ccnccvevens 375

lividus ...........0005. 344

lividus ........ 341, 345, 346

LoDAtUS . occ eves ecveeee 344

lOngGUCorntS.... veveeeees 343

—— mexicanusS..........066. 355

———— MUTEUUS Loc cercvevvees 346

—— nocturnus..........6645. 348

—— NOCLUTNUS vessevcees 347, 3849

—— NOtATUS ... reer eeeeenes 348

NOEATUS ws csevvvevee 347, 349

—— parvallelus.............. 345

parallelus ...seccees 346, 347

parvulus ......eeee eee 356

PUCCUS. ve svcevvevees 350, 355

PICTUS Lecce cece eee eeee 354

PUCLUS ssc sevccevevaveces 341

—— pilatel ......... eee eee 348

—— pilatet ..ccccsceuee 341, 347

POStICUS. .... eee eee eee es 350

—— probus .....eeseeeeeeee 348

PVODUS Le ccececeees 349, 350

Pruinosus ..........0068- 344

——— PTUINOSUS . oc ceveesveaes 346

TEPANAUS .evsvrocsseres 349

Page

Monocrepidius robustus,..... .. 807

TOUTIQUEZ]. 6... eee eee .. 842

TOUTUQUERE voc aeececees .. o4

TubIdUS ...... ee cece eee 345:

tugicollis ......e2000- .. 349

SCVUCALUS vec eeeecvees .. 8653

sexpustulatus .......06- 355

Sexpustulatus ..casseaes 356

SinalO® ....eeeeeeeeeeee 343:

SOTAUUS. .. se ceveceveeee 357

SLICEUTUS vesseecceveese 353.

—— suturalis ,.sccccceeeeee 357

tarsalis ...... eee eee eeee 346

troglodytes .....seees .. 442

—— tumidicollis ............ 353

tumidicollis ......4.% 352, 355

—— variabilts ..... veeeeeees 800

—— varians ........ beeen 358

——— VATIANS oe ceca ewes 350

—— variegatus...... ccc nees 364

—— venustulus.....ecee 354, 355

—— vespertinus,, 350, 351, 352, 3853

—— 11dTUS vec ce ees 348, 344

‘—— vulneratus oo... 006 veees 363

NeGAstriUs ooo cccceccccaceees 407

Nemaphorus .vccvccaccscveee 18

NEMATODES ....... cess eeuee 242

Nematodes... 212, 225, 240, 241, 248

ALTOPOS .. ee cee cee eceees 242

ALTOPOS .ceecsascusevens 243,

Diartl..... eee eee eee 243

= — —cuneatus ........ oe 242

—— cylindricus ............ 243

cylindricus ...cveeeeees 244

Leprieurt vaccsvcceveees 24)

Littgiosus .ssceseee veces 242

——mannerheimi .......... 242

—— MEXICANUS..... eee eee 242

OCTINODES .......... weeeee 551

caprllatus ....ecees wees. OO]

carinatus .........ee eee 551

CGidionychis ......006. aeeeee 604

OISTUS 1... eee e ween 292, 558

——— CACICUS ...... cee cence 292

~—— sphenosomus ........ .. 292

suturalis .........0.. .. 553

suturalis .escsccceceees 554

OMOCHYSEUS..... eee seeeees 49

humeralis ..ocsseccseece 50

terminalis ..........006. 50

Onychodon .....ceevccees wee. 225

Oophorus castaneus .......... 476

—— MINUS vee ccvecvccees 556.

ORA wo. eeeeee seeceseeeeee B02

686

Page

6 eee ee ee 607

Chevrolatt ..ccevcccerces 603

complanata ......eeeers 604

discoidea ......eeeeecee 604

discoidea ...... 603, 605, 606

JF AYt vce eccncneeeeees 603

—— marmorata ....... we eee 605

MAYMOTALA sveveeseevees 6038

—— mixta..........- Seeds 605

MIATA cc rvvcncnecncee 603

——nigricornis ............ 606

——— NIGTUCOTNIS. ove eeseveeee 603

—— obliqua ............005. 604

obliqua ......6 603, 605, 606

troberti........ oeeceece 603

—— trobertt .. cece eee eeee 604.

OTCHESIA. occa c cree cnceveee 599

ORTHOSTETHUS ............ 507

cavifrons ......ce eee eee 510

—— cavifrons ......... . 508, 511

COYVINUS ..... eee ee eee 509

COTVINUS. 6. eee eeees 508, 510

—— glabratus .............. 509

—— glabratus ......0605 508, 510

infuscatus ,..........06. 508

INFUSCALUS . 6... scene 509, 510

—— pectinicornis............ 510

pectinicornts......eeeeee 508

—— piceus ........ se eeee .. 509

PUCOUS. 6 ere reveccceeaees 508

PVAFCCHUS wo everecsceves 508

Orypteris oo. ccececccccecees 16

Pachyderes 6... 0c ccccevceees 462

PACHYSCHELUS ........ 187,666

affinis ....... veceeevee 143

—— albopictus............-- 666

ATHENS ee sveceecceeess 144

——— ATACNS Lc cvvcvevececees 145

—— ASETS!OUS oo eee e eee ee eeee 147

—— aversus..... des ae wee. 146

AZUTCUS 2. ee eee cece seees 152

—— bicolor .........eeee eee 666

—— bifasciatus ............ 151

—— bifasciatus .......0eeee 152

biguttatus...... aeegaees 153

—— carmineus....... seveere 666

——centralis ......2.05.... 148

-—— cinctus ....... Bins tunes 149

—— COMMUNIS..........006. 141

COMMUNIS verse ceeee 142, 143

—— compactus.............. 188

-—— constaNS ........eeeeee 137

——_ CVANCUS. . eee ee eee . 145

—— deplanatus ............ 146

—— discoidalis.........cee0. 145

INDEX.

Page

Pachyschelus diversus........ 148

ALVETSUS. oc svcccesees .. 144

Gubius cc. eee e eee eee 148

— dubius ..... See 144

eleganS .......ee ee eeeee 152

—— familiaris .............. 141

—— fulgens ........ cece eee 141

granulosicollis .......... 146

—— hydroporoides .......... 140

—— incertus........ wseeee .. 142

WTOVAtUS ... cee eee scene 149

—— laticeps.........e.eeee 149

—— lunifer .............06. 148

modestus .......eeeeeee 147

—— nigricollis ...........06- 148

octodentatus...... ceeees 142

octodentatus ..ssseee 148, 144

OVALIS... cece ee ee wees 140

—— pubicollis ......... woes. 158

purpureipennis.......... 144

——— PULPUTEUPENNIS wo. cee eeae 142

robustus ..........000- 142

——secedens ..... Se ee cece 145

SIQNAtUS cee eeeeeeeeeee 150

SUNALUS occ vevveccvees 151

solitarius ......:.ee00e- 666

sticticuS .......+. 153

—— thoracicus.............. 139

trapezoidalis............ 151

undulatus .............. 151

Pactopus.....cevcees 193, 194, 208

PsaRADOMORPHUS,... 51,186, 664

biplagiatus ............ 55

biplagiatus ........ 187, 664

CaTISSIMUS .......+eee eee 187

Collaris ....... cece ee eee 52

—— complexus.............. 56

Corrugatus.........ee0e. 56

elegantulus ..... ee teaes 53

—— emarginatus ............ 53

flohri........ ec oead owes 664

gibbifrons .............. 187

latevittatus ..........0. 54

obscureguttatus ........ 51

—— persimilis .............. 56

plagiatus ..........40.. 55

—— TUQINOSUS ......... 000s 52

vermiculatus........ 51, 186

PARAGRILUS «0... ...e eee e nee 124

Paragrilus.. oc. c..0. aswees 128

weraticollis..........000. 127

angulaticollis .......... 124

—— angulaticollis ........5. 125

——— EXIQ“UUS ...... cece cece 125

CXUGUUS ... 00. Connee wee. 126

---— impressus ..... seweecces 124

Page

Paragrilus 1mpressus.....6.00. 125

leevicollis ........eeeeee 124

lesueuri...... cece eee ees 126

rugatulus .........eeeee 125

transitorius ..........6. 126

trifoveolatus............ 125

VICINUS ... cee eee teens 126

PARANIUS wo. ee eee eee eee eee 404

—— mexicanus...... see teses 404

Pedetes .oiccccccceccecceces 477

PELECOPSELAPHUS ......+. 3, 167

Pelecopselaphus .....cceeeeees 4

ACULUS Lice cece eens 3, 167

ANGUIATIS .ecceeeeeeecae 3,4

chevrolatii ...........- 3

—curtus ....... weet eee 3

frontalis.......500. sesee 8

FrOntalts. cee vveecececens 4

lateralis....... ees ceeees 4

Pericallus dorsalis ......00000. 288

Perimecus ..cccccsaccccccacs 452

SUVIPES Lov vevcceceees .. 453

PHANOBOLUS ...ceeeeeceeee 224

Phenobolus ..ccccccvccccves 211

bicolor .......e..eeeeee 224

Phanophorus ...... Sees cceee 463

Pheletes 0... cc cccceecccveees 455

PHLEGON .......00+ cece eeee 244

Phlegon wie cccccvcccccvceces 212

DUQUELE ec ecccceeececes 245

VidUUS ......60-. veces 244

Phorotarsus occ cceccceccees 413

PROCKUS oo. ccc ec cee c ne ecees 456

guatemal@ .....cccceeeee 457

Photophorus .....ccce00 463, 474

PHYSORHINI ......eceeeeeeee 385

PHYSORHINUS ......0..0000- 885

Physorhinus ........ 396, 398, 399

DOMVIANUS oe ccececececee 3888

cephalicus ....... »++ 386, 387

cruciatus ......e eee eee 388

CTUCTALUS vee cea cceueeese 886

distigma ...........00. 386

distigma ...... 885, 387, 389

erythrocephalus ........ 386

erythrocephalus.. 385, 387, 388

JUAVUCePS . eevee cececeees 386

frontalis.............00. 888

—— frontalis.......c0cc cece. 886

—— fuscuUlUs 66. csccareceees 385

galapagoensis ...... 385, 390

—— longicornis ............ 3889

TOngicorntS .eeveeeveees 386

—— quadrinotatus .......... 387

—— quadrinotatus ...... 886,388

SEPUCCUS 6. cee eeees .. 387, 389

Page

Physorhinus sexnotatus .. 888, 389

stellatus.............065 389 .

stellatus ......4. »e.. 386, 388

——sturmi ...... eee ceeeees 388

SCUTMA voceeveeeeee 386, 389

Pithiscus..... veceees se eeeeee 18

Plateros ........ cette ee ee ees 240

PLESIOFORNAX.......-.. 232, 669

Plesiofornax ,,.. 212, 225, 231, 238

badius ............005. 237

—— badius .reccccccceceee 234

—— confoederatus .......... 235

— confeederatus .......... 233

—— elongatus .............. 237

—— elongatus .......... 2338, 284

—— glandifer .............. 236

glandifer .....ceees 233, 234

imperitus ............-. 237

VMPEVULUS veceeeeceeeees 234

inutilis ............006. 236

MUEUWS Lec ccecsseceves 234

—— ligniperda.......... 234, 669

laynperda ...seecceveees 233

longicornis ........ 235, 669

LONGUCOYNIS. .eseceseseees 233

—— mandibularis............ 235

MANAUATIS. ... 00 cee eee 233

opaculUS ......ee.eeeee 236

OPACUlUS. .. cc veceevvvvas 234

PAVADUS. ... eee eeeeeeees 235

PAGANUS. .cscveserecaves 233

pectoralis ..........006- 234

pectoralis ...... 233, 235, 236,

237, 669

puellus ......... cesses 238

—— puellus .rcceccecoes 233, 234

sublucidus............-. 238

sUblUCIdUS . 6... 000s 238, 234

Podonema .....06. eee eeeeee 405

PCCILOCHRUS ......... 0000s 216

Poecitlochrus vocvcccccecveees 211

fractus ............ woe. 216

Peecilonota interrogationis...... 18

POLYCESTA ....ceceeeee 18,177

POW COStA. ccc ccc cveveneeee 176

cribrana .........e00n. 177

——montesuma ........ wee 18

—— velasco ...........eeeee 18

POMACHILIINI .......+..0005 402

POMACHILIUS ...-.ceeeeeees 406

—— CUSPIMAEUS eee cceees 406

—— linearis oo. .eecseee. 406, 407

longicollis ......cce evens 407

—— mucronatus ............ 406

spinifer ........ seseeees 406

Pomatochtlus ...cccevsseees .. 406

INDEX.

Page

PRIONOCYPHON........200005 600

Prionocyphon..ceccecsscveces 602

auritus ..... deneee wooo» GOL

—— pilicornis .............. 601

—— PUNCOTNIS vee vecsccceees 600

SEYTUCOYNUS . occ ceecereces 602

PRIONOSCIRTES,........- 602, 661

nigripennis ............ 661

saltitans............00e- 602

SAILLANS cose eae ceeeee 661

PLUOPUs covesvvcccccccccecees 452

Pristilophus sordidus.......... 508

Probothrium .... 474, 499, 505, 506

amplicolle ..... cece wees 505

—— physorhinus ........ 499, 505

PUDESCENS oc cececccnces 506

VUJYPES oo ceccesvvaacees 499

PUPVEUUM Looe cecevevees 506

—— setosum .......6.. .. 499, 505

VELUEINUM vee eeccvcecces 506

PSILONISCUS ... cs cece e ees 402

Psilonescus oo... ccc ccceeececes 404

apicalis ........... vee. 408

GApPtCaltS .eesecccevereaes 402

— borborurus ............ 403

borborurus secescceeees 402

brunneus .............. 403

OTUNNEUS Loe ce ceeeceeee 402

—— costaricensis ............ 402

StICtICUS., 66... . cee eae eee 402

SEICTICUS. . eee ce ccc eens 403

PSILOPTERA .......... 8, 172, 663

Psilopterd .icceccsewcceveves 1,7

auropunctata .......... 663

— chalconota............ 9, 173

COMLESE 2. see eee ween 10

cupreo-#@Nea ............ 11

—— dilaticollis.......... 11,173

drummondi ........ wee. LO

geniculata .........0.06. 172

eranulifera ...... eeeas 8

guatemalensis .......... 173

hirtomaculata ...... 10, 173

MONILIS ......- se eens 8, 173

MONUMS Lr cecececaces 9, 10

monilis, Var.........060. 9

—— obscura ........006. wee. 172

ODSCUTA wv sseeesee weeeee 178

—— polymita ............ 8, 172

polymta .rersseceveees 173

PVCSLUCNS .eccaseveveees 10

—— principalis...... eteccee 10

—— severissima ............ 172

simplex.......... seeeee OD

—— CUCUMANA ... cece cereces 11

webbii .........-..000 10

Page

Psylltodes oo csccsccvcvevcens 615

PTEROTARSUS ......0cceees 256

Ptevotar suse. cscecsevcccceees 213

brasiliensis... .cecceveeee 256

—— eschscholtzi ............ 256

histvi0 ....eec ccc eeeee . 256

— , V.inornatus ...... 258

— humilis................ 256

TUZOSUS »...... cee cee es 256

—— tuberculatus .........00. 256

PTILODACTYLA .......0..0005 627

Ptilodactyla ........ 658, 659, 660

eequinoctialis .......... 651

angusta ...... eee ee 627, 635

ANgustAtA .......00, 629, 654

antennalis.............. 641

—— antennalis ........4. 627, 642

—— brevicollis.............. 636

breviscutum ............ 646

breviscutum ....seeeceee 645

canaliculata ............ 684

— canaliculata ......cce.e. 635

—— caudata ......ee ccc ceeee 648

—— caudata oo. ...ccecee 627, 628

—— chiriquensis ............ 637

—— chiriquensis .......0005. 638

ConfINIS .... ec. eee ee eee 688

CONFINIS 1.6... 639, 648, 654

—— CONVEX... eee cece eee 638

—— CONVERA .. 0.6.4.0, «+» 689, 648

— convexicollis............ 683

converxrcollis ......0. 634, 635»

637, 648

COIVINA 1... ee eee cece 686

COTUINA voce cece ceees 632

costaricensis......... ... 658

CTUCTALA. Lecce eee eee ees 627

cucullata ..........000. 6384

——_ cucullata vieccsccccsees 628

debilis ............008. 657

deleta ...... ec cce eee 656

deleta...... 640, 642, 655, 657

—— denticollis.............. 647

—— denticulata ............ 651

denticulata .... 628, 652, 653,

654, 656

—— deplanata .............. 635

dilaticollis.......... oe. 646

ebenina ..........0.008e 631

ebenina .... 632, 633, 634, 637

forcipata ...c..eeeee eee 653.

forcipata ...... 629, 654, 656

—— forticornis........ rere 655

SOrtiCOrNts oo. cecececeaes 658

—— fuscicornis............ .. 635

SeOTMAN® ..........00e, 652

688

Page

Ptilodactyla gibbicollis ...... 633

-—— gibbicollis oc cveccesceees 648

—— glabrata...... ee 632

gracilis ......eeeeeeeees 64]

GTACIS vec cecceeees 636, 655

—— granulicollis ............ 654

granulicollts........ 641, 653,

656, 657

guatemalensis ....... ... 689

—— heterophya.......... 627, 648

—— humerosa ...........00, 642

—— humerosa ......eeveeeees 627

—— integra ..... rere 645

lamellifera ..cceseseeee 627

—— lutescens .............. 642

Uutescens ws cceccssveuee 643

—— maculata .......... .... 680

—— marcida..........0..4.. 656

—— MAPCMA . .ecevcrevcees .. 688

marginata ......... 600 637

marginata...... 636, 638, 646

MEXICANA .....-. eee eee 650

mexicana 629,639, 645,651,660

——— MINUED ov cvevcccees 627, 648

—— montana ........ veeee. 648

—— montana ...eereeee 628, 644

nigricomnis ............ 631

nigricornis .... 682, 633, 637

—— obovata.......eeseeeeee 636

—— opima ...........0000, 650

OPtLMAa ..seee ¢ i Sia% 629, 651

pallescens ....... veeeees 655

pallescens ..cscssscvveees 640

—— parallela .............. 655

—— parallela .......... 658, 658

precellens .rscacsacesess 627

pruinosa .........+..+. 648

—— punctatissima .......... 645

rotundicollis............ 657 -

—— Ufa Lecce eee e ewes 630

TUB cc cansnnaes ... 631, 633

—— rufotestacea ............ 640

TugulosA ...eeeeeeeeees 644

—— rugulosa ..sccceees 640, 645

SCAPHIRTIS oi ei ces ea 643

——— SCutata ....ceeceseeeees 646

SECODENS 6. se ccucesee 627, 642

—— SC1TatAa 2. .ceeceeeeeeaes 652

serrata ...... saan ve .... 658

serricollis ...s.eeeee 628, 639

—— submaculata ............ 639

—— submaculata.... 640, 642, 643

—— subparallela ............ 653

subparellela ......eecees 658

-—— substriata ............-. 682

wrnenee SUDSELIAED voce eeceeece- 635

INDEX.

Page

Ptilodactyla sulcata .......... 647

SUICALA co veceeceseceees 638

tabascoana ......00005- 640

TENNIS veces cece eee ees 657

CENUIS .ecseees 627, 642, 643

—— trinotata ........ weeee. 640

tropicalis .........eeee- 649

tropicalis ..sseseeceaeee 650

—— varicornis ....... of evete Saks 644

VATICOYNUS ceveceecececes 645

VUIS ec ccncnceceee 627, 651

PTILODACTYLINE......5eeeee 623

PrILODACTYLINI ...... — 627

PTORTHOCERA ...... 9 heroes .. 584

Ptorthocera ..scccecececeres 574

CALVA . oe. cece eee eens 584

PTOSIMA ... eee eeveee wees 20

Jeeta cee eee ee eee ee wate cote 20

undecimmaculata........ 20

PYROPHORINI . 0... ee ee eee 4638

PYROPHORUS .....ceee ee eee 463

Pyrophorus .... 457, 458, 464, 467,

468, 474, 475

—— abnormis ......66.. 463, 474

Adumbratus ..ccescecees 468

ANGUSLUS. oo vee cccvenes 468

CAlIGiNOSUS.... eee ceeeeeee 471

caudatus ......cee eee ee 468

—— caUudatus ..ereeccesvees 465

—— causticus ....e0. oceans 469

—— clarus....... cc cece ee eee 468

——— CIATUS. occ ccccccceeees 464

AwvergenS .ecssvcceveeee 466

formosus ..... snot eee'e 473

fulgidus. ..........-..0.. 468

—— fulgidus... cccccceeees 465

GEMMIPFEFUS wesvevees 469, 470

havaniensis ..........4- 469

RAVANIENSIS ve cecsecaces 465

indistinctus .......0..4-. 467

IndistinctUs ..sesere.... 464

laternarius seecssoceees 466

TUSCUS. oo ccc cece eeeees 467

lychniferus ...ccceseees 469

megalophysus ....eeeee. 457

melanoxanthus...... 463, 474

—— mexicanus.............. 470

MEXLICANUS . ec eeeeees 465, 471

—— noctilucus.............. 466

mocttlucus .....0006. 464, 467

—— ny Clophanus vo .ceceveeee 466

—— occidentalis ..... weseaie 6 470

occidentalis ......6. 464, 465

ornamentum............ 469

ornamentum .. 465, 470, 471

—— pellucens ...... Sn vue 467

Page

Pyrophorus pellucens.. 464, 466, 468

phosphorescens ......+++5 466

—— physoderus ...... eisloees 471

—— physoderus ....eccseeee 465

—— pyrophanus ..cevccveees 473

TAGIANG . 0... 65 secs veees 472

radians.... 464, 466, 471, 473

restinctus ...... Siecle oc 473

VESLUNCLUS 6c. ccceeeeeees 466

BITIUS seis sc oo9.0 5 o'scie 04 4 468

BITIUS . caer sacoesecneses 465

Stella... ... cece eee eee 471

stella...... 464, 465, 472, 473

—— strabus ........-.0.005- 466

STVADUS oo cceceeeees 464, 467

SUTINGMENSIS.. cc eceveeee 467

SYTIUS caveeeee bales aces 468

RRACOPUS occ vcccccceeees 246

Rhipidocera marginata........ 585

RHIPIDOCERIDE .......00005 574

Sacodes ..... cee cecceeveees 600

SANDALUS 2... cece eee ee ee eee 584

Sandalus .....ceceeeees 574, 586

conicicollis ............ 585

conicicollis ..sceceesees 586

—— knocht oo ssccccevcveee. 586

NletOl. .. eee eee ences 585

NUCLOL . re venecerceeces 586

NUGJEP voce vcceccceeeees 586

SCAPTOLENUS .........ee eee 557

Scaptolenus. ...cecececccecees 564

acrognathus ............ 564

acCrognathus ....cceceeee 558

acutangulus ............ 561

acutangulus ........06.. 558

—— amplipennis............ 562

amplipennis .... 558, 563, 564

brevicollis............6. 567

brevicollis ...... 559, 564, 568

californicus ............ 563

Californicus ....e.eeeeee 558

—— candezei ............6. 566

candexet ...... 559, 567, 568

chevrolati...........6.. 569

chevrolati...... 559, 570, 571

. 572, 573

CSErIAtUS eve eee e eens 558

femoralis ............4. 572

Semoralis...... 557, 560, 569,

570, 571, 573

—— fulvus ................ 560

— fulvus .... 557, 561, 565, 566

gehini ..........00..6- 567

GERI oo cececeee -. 559, 568

Page

Scaptolenus gibbus........004. 560

guerini .......... 000. 570

—— guerint ........ 559, 565, 571

guttiventris ............ 562

—— guttiventris ........ 558, 563

hirticollis .............. 5638

hirticollis ........4. 558, 562

laticollis .............. 564

laticollis .......... 558, 571

lecontéi........ 557, 560, 561

longicornis ............ 573

LONGICOTNIS. ve cece ee aeeae 560

—— mouffleti ...........4.. 565

moufftett vo... vec eeees 509

——~ nigricepS ........ 0.000. 566

——_ migriceps ........4. 559, 567

—— obscuriceps ............ 573

—— obscuriceps oi. ce eccceee 560

—— OCVEALUS ec c eee nees 558

—— palpalis.............00. 560

Palpalis ....ccecevcacaee 558

—— pueble .............0.. 566

puUenle .iivceecccecaeee 559

revestitus .........0.00. 568

revestitus ...... 559, 564, 567

rubriventris ............ 570

——- rubriventris ........ 557, 559

ruficormis ...........06. 568

ruficornis .....6.... 509, 567

signaticollis ............ 571

signaticollis ........ 560, 572

subapicalis ..........., 569

subapicalis ........ 557, 559

sulcipennis ............ 563

—— sulcipennis.. 557, 558, 562, 565

teapenmsis .............. 571

teapensis .......... 560, 573

VaganS wee. cece eee 561

VAGANS we vesaee 558, 562, 565

villosus ...... pee eeeeeas 565

VUllOSUS . eee ee eee 559, 569

SCIRTES........ eee eee 606, 662

SCirbCS occ cece eee 602, 6038, 607

angustatus ........ 616, 662

angustatus ........ 608, 617

ATED Lecce ccc eee ee wees 6138

ALE voce eee cncenee 608, 614

—— ceruleus .............. 609

CEYULEUS vie cece ec ceeee 607

CENEVANS csc ceveceees 615

circumcinctus .......... 610

—— circumemetus ...... 607, 611

—— collaris............0 eee 614

COUATIS .o ccc c eee e eens 608

—— ellipticus .............. 612

CllipticusS .seeeecseceees 608

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 1, August 1897.

INDEX.

Page

Seirtes fuscus .......eeeeee 612

hemisphericus ..6....04. 607

interruptus ....ceereeee 603

laterals ....ece eee ee 615

longicornis ............ 614

——- longicornis .. 608, 618, 615

longulus .............. 616.

longulus ...seecseceeeee 608:

—— oblongus .............. 609

—— oblongus .......... 606, 607

—— orbiculatus ........ 614, 615

——— PICTUS reece eeeces 603

—— pilatei ................ 611

—-- pilatet 607, 610; 612, 618, 616

—— pulicarius...........4.. 612

PUNCATIUS Wo vee cee cccune 608

puncticollis ............ 617

—— puncticollis ...... cee. 608

—— quadrinotatus .......... 615

—— quadrinotatus .......... 608

—— rotundatus ............ 609

—— rotundatus .... 607, 610, 612

—— saliciS ............008. 617

——— SAINCIS ee cereecceeee 608

—— saltator.............0., 615

—— saltator........ 608, 613, 616

—— scapularis .............. 611

—— SCAPUlarts sce ceccreces 607

—— scymnoides ............ 617

scymnotdes wi... 6.055. 608

SCXLUNCATUS eee eee eens 603

—— suborbiculatus.......... 614

suborbiculatus...... 607, 608,

611, 6138

tenuicornis ............ 613

LENUICOVNIS .... ee oe 608, 612

COLANUB oe v ec eeeseneecs 604

—— thoracicus.............. 610

—— thoracicus ........ 0.005. 607

—— 11601008 6. eee eee 607

troberti...csceccuee 604, 607

SCYMNUS. vce cee c ences 617

Scyrtes complanatus .......... 603

ODIONGUS. 6. eee cece 609

pilatet vi. ceeeeeceveeee 611

trobertit. .. cece cece ewes 603

SEMIOTUS .............. 287, 553

Semtotus ......005. 288, 337, 499

OGRNIS vec ceccvccevvaes 290

ANLENNALS . icv ececeeeee 553

—— CANA EZ ve vce ecccccaeee 290

—— CAVACUSANUS ...... eee 291

——— CATUS. 0. reece cece wees 553

—— chontalenus ............ 29]

chontalenus .........06- 288

—— cuspidatus ............ 288

689

Page

Semiotus cuspidatus .......... 289

AUStiNClUS vo. eee eee e eee 291

dohrni ............000. 290

ORIN viv ce cece cn evcas 288

—— insignis................ 289:

INSUYMIS. ov cece eee eees 288

intermedius... 0... eee 290

—— lafertel ................ 290

dafertet 66. ec cc ccccecees 288

ligneus 1.0... . cee eee eee 291

Vigneus w.ecceeceees 288, 292

LONGUS vic ee cece cc eeens 289

luteipennis ........004. 287

splendidus ............ 289

—— splendidus..........0005 288:

superbus ........00.06- 291

SuperDUs vo. cece ceneees 288

SUCNUS Lecce cece cece eens 245

DrUnneUS . 6. .eesseeeees 245

SUMIANUS vee cece eens 574, 583

SMILICERUS ....... 0. cee eee 405

belti ..... 0.0... eee ee 405

Spherocephalus. ic... 0.0.0 00s 242

Spheroderma....cceccceveves 610

SPHENISCOSOMUS..........04 448

Spheniscosomus .......... 446, 452

cribrosus ..........0005 “450

CYUDrOSUS wee eee cee eee 448

—— ]e@VIS....... 0... eee eae 451

—— 1@V18 oe eee, 448

—— lanuginosus ............ 449

—— lanuginosus .........04. 448

rodriguezi...........0.. 451

POANIQUERL 66. cence eens 448

rubicundus ............ 448

tropicalis .............. 449

tropicals... 6... eee eee 448

SPHENOPTERA .........00005 27

MEGlECA.L . Le cece cncnces 28

—— purpurascens .......... 28

SPILOMORPHUS............06. 296

Spilomorphus. ccc ccccceccees 474

rubricollis.............. 296

SPILUS wo... cece eee eee eee 295

Spilus ..seeee. 296, 317, 388, 474

ciliaticornis ............ 295

ciliaticornis ........ 296, 310

Steatoderus cevevcsevcevvees 499

PUFUS cove ccc eee eeces 881

STENOGASTER............ 48, 186

Stenogaster ...ccceveeccees 49

ANG™USEUS vi cceecenevees 75

—— biteniatus... cc. ee ee. 186

CUEREVINE 01. ccc v ee caee 102

costifer ............ 48, 186

—— fossulatus.............. 48

690

Page

Stenogaster fossulatus ......+. 186

—— GUDDer i ccvvvccrercans 49

INCETTUS. corr ceeccwinnne 115

a | wet. 48

MOPOSUS ov cveveccceevens 186

palleolatus.......+. vives 49

PUlVETOBUS .cvicccevonres 186

SteEthon CvVANS .....eceeeeees 216

SEIQMOdSTA wo cescvecccees ban dB

DOU oo aciiesal saan pie S03 «0 463

STIROPHOBA.. ...0. sce ceases 660

sulcipennis ............ 660

Tachycnemis delauneyt........ 223

TAPHROCERUS ......0.4. 127, 665

LAPRPORCUB oo ae 192

COMMUNIS..... 0 ce vee eee 130

COSTATIS 0k eee cee 127

COSTOUUS, ook oa SK HESS 128

fasciatus ............. 128

PUTALUS |. wien eae eels 129

kerremansi ............ 665

TBO ce pcvce ees cele ee aie ates 665

MeXicanuUs ..........6. 128

MELICANUS 4. cece eens 129

nigritulus .......606. 06+ 128

——_ migritulus .... 6 ccc ceeces 129

psilopteroides .......... 129

purpureipennis.......... 129

purpureipennts .....6.... 1380

WMAOTMUS ole. 1380

WEVON ogo. Sa ees 626

—— cucullatus.....,........ 626

—— palpalis..............4. 594

DAIPONS os sce Gs ox e% 593

TETRAGONOSCHEMA.......... 17

—— humeralis........... gig AE

QUAGTONG oc s Uae ess 17

PHARDUS 5005 Gs 216

Thambus. oo 5+- 212, 217, 219, 223

ne ee 217

IMeREPSCHUS. 6c oe ass 217

PUBUIIIS sc. ees oes vies 217

POPE os aa Boneh 214

MRPINCOPYGR ooo cie sb aas 663

INDEX.

Page

THrINCOPYGE: «5-050 siekis C08 Cae He 177...

Marginata , oi ssie een ss 663

THROSCIDZ ..... eee eee 193, 667

THROSCUS .....-..8e0eee eae. 207

TRPOSCUS 0 oa cae ets 198, 194, 208

GUENUS® 665 op Kaen 207, 208

— “ight 6. oes eee e bane 207

—— chevrolati .......006 2+. 207

—— CONSEVUCTOP cc eevee eaee 208

CORVETYENS.. 2. . 00s teezee 208

debilis ....... dione Magee 207

INVISUS Coe eecevcucecaes 208

——_ MENAAL ocr vcveees .. 207

Parvults ov ceeeccseees 207

UNA voc ccavccrencens 208

~—— PUNCEALUS Wives sececeses 208

SCRAWMI eve ec cececeee 208

SEJUNCLUS Loe cece reeves 207

SEYUCCUS Woe cede ee eaee 207

trivialis....... cece ee eee 208

VANAUS woe eee cccecaee 208

THYLACOSTERNUS ...... 257, 670

Thylacosternus . 0.1.0. ceccues 213

—— bifasciatus ............ 257

—— donatus.............04. 257

—— nigrinus .............. 267

pulchellus vi... ccc cen cane 257

—— quadrivittatus ........5. 670

— rubricollis.............. 257

TUbTICOMIS 6. cece 670

vittatus..... cece ee 670

Tomicephalus...... 0.0 cece 496

sardioderus ........ 497, 498

BUDSEVTATUS eee ce eevee 496

TOMOCEPHALUS ........000. 496

—— abdominalis ............ 498

abdominalis .... 496, 497, 499

bicolor: . gs .ee ieee ets 498

bicolor oo e cc eceeeee 496

INSIQNIS.............00, 498

——— INBUGINS or ccccceneee 496

—— melanotus.............. 497

—— melanotus .......... 496, 498

—— sanguinicollis ...... 497, 498

—— sardioderus ............ 498

—— sardioderus ........ 496, 497

Page

Tomocephalus substriatus .... 496

substriatus .... 497, 498, 499

TRAGHYORLE 0445 easleenien 7

blondeli. ows. cant won 4

Trachy hele oo... 6s ve ssasaies ‘s

O1OND Eo ea é yd we eae 7

Trachyplerts ovo csasccecceeee > 16

PRACHYS 3.5... o:0cis ejeoeec be 131

—— segregatus..........05-. 131

troglodytes .......e eens 131

ZT PUT ERGIUB 6a 6 oo Sie sense i ies 316

TRIGONOPLEURUS ........0. 2438

Trigonopleurus .......4.. 210, 212

AalieNUS 2.2.6. cesses eee 243°

TRINCOPYGE ..........eeeeee 19

SIBCTIS. 2.04.02 eee ee eae 19

Tripantdius ....... cece cece 664

TRIPLONYCHUS,...--¢scee00- 426

Triplonychus........ 416, 427, 428

carinatus .............. 426

cingulatus........6. 426, 428

COSLALUS 66. ce cee cee ae ees 427

01 427

——parvulus .............. 427

PArvuluUus ..cseceees 426, 428

—— plagiatus ..........00., 427

trivittatus.............. 427

Urivittatus .. 6. evens 426, 428

THILACUS oe cece neces 207

TYUXLAGUS eee cee nee 207

TRYPANIDIUS ........00000, 186

TYpantdius ice ccrecceceees 664

biteeniatus ............ 186

POR oa voc ais calves 664

infrequens.............. 186

TRYPANTIUS ......00. cee eeee 664

— flohri........ 2... ee eee. 664

Vesperoctenus ..ecce eee ceeee 574

JORIS ov oss ie he Ae 8 574

Ypsilostethus 6.0.0... cea 499

LENO oie ok Co oa bade Ub Oa 584

—— unicostata .....eeeeeeees 578

LOPOCKTUB. 6 aaa hae 407

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