a Gib

b bib

v. LD

INTRODUCTION.

Tue Malacodermata are an assemblage of Coleoptera forming the second half of

Latreille’s group “Serricornes,” and include (as adopted in this volume), in addition

to the “‘Malacodermes” of M. Lacordaire’s ‘‘Genera des Coléoptéres,” the families

Cleride, Lymexylonide, Ptinide, Bostrychide, and Cioide. Although, perhaps, some

exception may be taken to the term Malacodermata as being inapplicable to these

latter families, which have in general the integuments as hard as they are in most

Coleoptera, there yet can, I think, be no doubt as to the propriety of uniting them all

as one aggregate in a work which, like the present one, treats of a whole fauna. The

most obvious character, which all possess in common with the other Serricorn Coleo-

ptera, is the frequency with which the antenne have their joints developed on their

inner sides in such a manner that their articulations become serrate or pectinate. This

general character is, it is true, subject to much variation, but the variations are of

degree; the antenne are sometimes flabellate on one or on both sides, or they are

simply pectinate, or give rise to long filiform processes, or they are clavate, the three

terminal joints being longer or altogether much larger than the rest, or rarely (as in

Ptinus) they are simple; but the fact remains that in each of the families we find

genera reproducing the typical form.- The authors of Monographs of the separate

families, in dealing with their classification, appear often to have given undue import-

ance to characters which do not hold good for more than two or three of the families,

important though they are without doubt in characterizing these lesser associations.

It has not been found necessary or useful here to adopt generalizations such as the

“ Appendicitarses” of Spinola, or the ‘ Mollipennes,” “ Floricoles,” and “ Gibbicolles ”

of Mulsant.

‘Two families, it will be noticed, are absent from our fauna, viz. the Drilide and the

Cupeside, both of small extent; but of these, the latter, consisting of one abnormal

iv INTRODUCTION.

genus, is represented in America north of Mexico by three species, and it would be

_ premature to assume that both families may not be present.

Perhaps no tribe of beetles has been more neglected than this one, and therefore

deductions founded on mere numbers of species as given in our catalogues cannot be

considered of great value. A reference to the proportion of species enumerated in this

volume to those given in Gemminger and Harold’s Catalogue will make this obvious.

Of all the families here united under the Malacodermata the known species amount

to but 3530, while from Central America alone we here record 813 species, contained

in 120 genera, of which no less than 535 species and 28 genera are now described, as

it is believed, for the first time. |

The only regions of which our knowledge of these insects was more complete than

of Central America previous to the publication of this work were the United States

portion of the Nearctic, and the Palearctic region, exclusive of Asia generally. It is

now seen that the Tropical portions of the earth are as rich, or richer, in these groups

than the cooler parts, not only from the collections which have come to the Editors,

but from other evidence before me from other districts. Hence, if we simply calculate

by the percentage of new species to those already described, and if we exclude from

our calculation the European species (which numbered 1151 in Marseul’s Catalogue of

1866), and those of North America (508 in Crotch’s Check List of 1874), as having

been better investigated, we shall find, in a rough way, that if the species of this tribe

from the rest of the world were only collected and described to the same extent as is

here done for Central America, the whole number could not amount to less than 9500.

And considering the numbers that have been, and are still being yearly, added to the

European and North-American lists, I think we shall be much within the mark in

assuming that there exist not less than 12,000 species of this section of the Coleoptera.

With respect to the distribution of the 120 genera to which the Central-American

species are referred, any generalization drawn from the whole number would be very

much invalidated by the consideration that the work of differentiation has at present

only been fairly begun in the Lycide, the Telephoride, the Melyride, the Ptinide,

and the Bostrychide (it is more advanced in the Lampyride and Cleride), and it

is chiefly in these families that it has been found necessary to propose new genera.

Of these I observe that, with three or four exceptions, the few species which can

be associated with them from other parts are about in equal numbers from North

and South America. But in the families in which I have not found it necessary to

INTRODUCTION. Vv

make many fresh genera, viz. in the Lampyride and Cleride, of the former five genera

out of sixteen occur in the Nearctic region also, but twelve at least occur and are well

represented by species in South America; of the latter there are 25 genera (omitting

Necrobia which is universal); of these, four occur in the Nearctic, seven in the Nearctic

and Tropical South American regions, and five are common to Central and South

America.

These facts show the preponderance of relationship between our fauna and that of

Tropical South America over any community it possesses with that of America north

of Mexico.

But this conclusion is rendered even more apparent if we consider the relative |

numbers of species in some of the larger genera. Calopteron is a genus of the Lycide

eminently typical of Tropical South America, where 70 species at least are known to

exist. Now, north of Mexico, only three species are known, but in Central America we

have 42 species. To give another instance, from the Telephoride, Chauliognathus is

represented in America north of Mexico by 8 species, in Central America by 45, in

South America by 28 species; the latter figure by no means representing the actual

number, as the species of that country have not been much worked at, while the North-

American are nearly certainly known. On the other hand Podaérus, a Nearctic genus,

especially abundant in North America, where it has 32 species, is barely represented by

a solitary species in Northern Mexico and does not pass further south.

More striking, however, is the marked peculiarity of the Central and South American

genera as compared with the faunas of other parts of the globe. If it were true that

similar conditions would produce similar forms, how is it that the specialized genera of os

the Neotropical region are so dissimilar to those of the Athiopian and Indo-Malayan ?

Of the few genera common to our district and to the Palearctic or Tropical regions of

the Old World, I do not hesitate to affirm that there is not one which is not of the

rank of feebly differentiated forms, or persistent forms of an earlier stage of development.

The apparent exceptions in the Lycide of Lycus and Lycostomus, in the Telephoride

of Silis, in the Ptinidee of Ptinus, and in the Cioide of Xylographus, being due to the

imperfectly characterized condition of those genera; while the total absence of such

widely distributed and well-marked forms as Erosand Calochromus, Luciola, Telephorus

(proper), Malachius, Dasytes (proper), Henicopus, Melyris, Cylidrus, Opilo, and Trichodes .

cannot be explained by any intrinsic dissimilarity in the conditions, which certainly

do not differ more than they do in the wide areas over which these genera are dispersed,

vl INTRODUCTION.

but rather by the isolation from these other areas, contact with which is only effected

through the northern portion of the globe.

One further fact is worthy of notice, viz. that, to whatever cause it may be due,

where a genus is common to Central or South America and other distant parts of the

World, it is also the case that it is represented by a species also identical or nearly so

in both districts. In this case its presence must either be due to transmission recently,

through artificial means, or to the conditions having long remained practically similar

under which it exists in places so far apart. The genera Plateros, Lycostomus, Meli-.

tomma, Atractocerus, Necrobia, Apate, Dinoderus, and Cis, all afford examples of this.

remarkable truth. Cylidrus, indeed, occurs in Brazil, but only in a species known to

inhabit Madagascar and the eastern coast of Africa with very slight modification.

Atractocerus, of which the distribution is remarkable, is represented by a species hardly

differing from an African one. Dinoderus is a North American. genus but with one

cosmopolitan species. C%s has one species with difficulty to be distinguished from the

common C. boleti of Europe. | .

A few words as to the materials which have been at my disposal may be useful. It

is probable that (thanks to the liberality of the Editors, who have spared no trouble or

expense to obtain for the purpose of the work all the large collections that were

available) such a mass of specimens in this group were never brought together before.

These were very largely increased by their own collectors, especially by Mr. Champion,

who paid a very great deal of attention to this group, more especially to the Lycide,

Lampyride, and Cleridee—all numerous in species and individuals in the humid forest-

regions of Central America—and sent home large and beautiful series often amounting

to 100 specimens of a species. Roughly speaking I do not think that less than 10,000

specimens have passed through my hands, and been separately examined during the

progress of the volume. |

The northern portion of Mexico (including the large State of Yucatan), and Costa

Rica, still remain, comparatively speaking, unexplored.

H.S. G.

May 1886.

ERRATA ET CORRIGENDA.

Page Line

14 2 for Exvos read Eros

15 28 for II. read I.

26 3 after puniceus insert’ (Tab. IV. fig. 1, 3.)

27 34 for Calodadon read Calocladon

28, 29 several places for Calodadon read Calocladon

29 12 for pectinicornis read pectinicorne. (Tab. IV. fig. 2.)

96 1 for 4 read 3

124 27 erase (Tab. VII. fig. 10.)

129 1 for 1 read 2 3

129 36 after (?) insert (Tab. IX. fig. 1.)

129 39 after “The” insert male: and after “ Chacoj,” the female (?) -

from Pantaleon

178 18 for histrica read histrio

180 5 for C. read J.

187 6 for Pelonia read Pelonium

208 9 before “ about” insert is

215 13 for muricata read muricatum

217 16 for pusillus read pusilla

217 21 The word “ GuaremaLa”’ is wrongly placed; it should precede

“San Gerénimo” in line 22,

222 5 insert Cis before bilimeki

LIST OF

PLATES.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, May 1886. - 6b

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

Lycus schonherri, ¢ .......... I, 3 2 | Calopteron tricostatum, 2 .... Il. 6 17

carmelitus, ¢ .......... I. 1 2 notatulum .............. XI. 5) 235

godmani, d ........655- I. 2 3 decipiens .............. XI. 7 235

fuliginosus, ¢*.......... I. 5 4 imitator...0.... 0.00000 XI. 6 236

Lycostomus lineicollis .... ... I. 4 4 || Ceenia cardinalis, Q .......... I. 24 17

sordidus, Q .......--6.- I. 6 5, 225 scapularis, Q .......... I. 23 18

championi, Q .......... oO. 7 5 interrupta ............4- I. 22 18

bucolicus, G ........006- XI. 1 226 || Plateros seminiger, Q ........ . I. 15 19

loripes, Ow... cece eee .. I. 8 6, 226 bourgeoisi, Q ........6- I. 20 | 19, 238

sommeri,,Q ......+2.08- IT.: 2 6, 226 bourgeoisi, ¢ ......6- {IL 10 | 19, 228

semiustus, 2 ............ I. 9 6 letourneuri§ ............ Il. 7 20

Lygistopterus amabilis ........ JOL 10 7 apicalis, Q 1.6... eee XI. 9 | 20, 288

hematopterus .......... II. 1 8 lateritius, Q ............ IT. 16 | 21, 239

leetus, Sw. cece ee ee eee XI. 2 227 bogotensis ...........5. II. 18 21

Lucaina marginata............ XII. 8 229 forreranus ...........25. XI. 8 239

Calopteron bifasciatum ........ I, 11 8, 229 parallelus .............. IT. 19 22

bifasciatum, var......... I. 12 8, 229 || Calleros puniceus, ¢ .......... IV. 1 26

corrugatum ............ II. 3 9 || Calolycus calanticatus ........ IV. 3 27

pallidum, 9 ............ I. 14 9, 229 || Calocladon testaceum, g ...... Il. 20 | 28, 244

affine, Q ww... eee eee I. 13 10 rubidum, ¢ ........-4.. XI. 13 246

—— melanopterum .......... I. 15 10 rubidum, 2 .........+.- XI. 14 246

reticulatum ............ I. 17 10 pectinicorne ............ IV. 2| 29, 246

flavipes, Q. .......04... I. 18 | 11,230 ephippium, ¢ .......... XI. 10 247

divergens, d........008. II. 4 11 ephippium, Q .......... XI. 11 247

scapulare, Q.........06- OL 25 12 || Linoptes imbrex, ¢ .......... XI. 12 247

scapulare, d.........0-- II. 5 12 || Lycinella opaca .............. XI. | 15 249

juvenile.............00. I. 16 | 12, 230 parvula ..........00 008 XI. | 16 249

triste, Q oe... eee ee eee OL, 21 | 18, 231 || Lamprocera picta, g .......... III. 1] 30,249

rufulum, df.......-.4.. II. 8 | 18,231 picta, var, d ......00e. XI. 17 249

rufulum, Q ............ II. 9 13, 231 || Hyas rhomboidea, g .......... TII. 2 30

pennatum, Q .......... II. 11 13 || Cladodes plumosa ............ III. | 21 31

pennatum, G ........-. IL. 12 13 || Pheenolis laciniatus, gd ........ II. 22 31

obliquum ..... .....--. II. 13 | 14, 232 || Athra despecta .............. IIT. 3 | 382, 251

rubrotestaceum, Q ...... XI. 3 — 233 brunnipennis............ XI. 19 251

lineare ........0- eee eee IT. 14 |} 14,233 || Drilolampadius stolatus........ III. 20 | 33, 251

—— lineare, var.t .......... IV. 5 233 scutellaris, var., d ...... XI. 20 33, 252

ichnoides, G .....-+eeee- II. 21 | 15, 234 || Megalophthalmus collaris ...... XI. 24 253

——— mimicum .............. . IL. 22 | 15, 234 || Lucidota bella .............. III. 4 35

simulator, dG... ee eee eee XI. 4 234 apicalis, ¢ .........2.. Il. 3) 36

beltii, Q .. eee eee eee ee I. 19 15 diaphanura ............ IV. 22 36

matutinum .......+..6-. II. 7 16 discolor, Q ..........-. III. 6 37

rubricolle, 9 ........606- IV. “4 234 discolor, var............. XI. 23. 258

* Lycostomus fuliginosus on the Plate. + Calopteron tenue on the Plate. |

+ The sexes are erroneously marked on the Plate; see text. § Plateros latourneurt on the Plate.

Lucidota lugens, ¢

incompta, ¢

xanthopleura. .

Photinus congruus, ¢

meteoralis

—— gliscens

nigridorsis, 2

ovatus, ¢

perelegans, 3

extensus, 2

productus, ¢

consanguineus,

cinctellus, 9

cinctellus, ¢

—— (?) brevicornis

sturmli, 2

——— salvini, 2

montanus

guatemale

lunicollis

sanguinicollis

aurora

armatus, 3

perlucens

purulanus

coo ee

oa ee

oeaeee

Pyrectomena angulata, ¢

vexillaria, 3

striatella, ¢

ee rm ee eewe

oe eee eeceee

eee eee ee oe

Pr ee

vat wb esas

tondbaw and

arenes

Qveeeeees

wou deveuer

ce sew widen

bese eeses

bounvauees

bd istesees

Saw eee

cee

eee

naw sue

biaesnead;

bie usb yess

Lekaacebes

rere

Cratomorphus picipennis, 2 ....

altivolans

concolor

ovatus, 3

fasciatus, ¢

Aspidosoma egrotum

depictum

—— pulchellum

bilineatum, 2

bilineatum, ¢

costatum

—— elianum

—— physonotum, ¢

(?) (larva)

eevee

ee ee

Photuris discicollis, 2

collaris, 2

lucidicollis....

mollis, ¢

crassa, ¢

crassa, var., 2

lucidicollis, var.

sordida

oe ee eee eee

LIST OF PLATES. .

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

IV. 18 37 || Phengodes bimaculata ........ III. | 28] 63, 276

XI. 22 253 bipennifera, var. ........ V. 1 65

XI. 21 254 || Daiphron lyciforme, Q ........ V. 2 66

IV. 12 88 || - crassicorne, 9 .......... V. 24 67>

: V i“ 38, _ — proteum, var., 2 ........ V. { i 68, 277

IV. 17 39 proteum, var., d ........ V. 16 | 68,277

IV. 16 40 || Chauliognathus dimidiatus, ¢ .. V. 3. 69

III. 12 | 40, 260 faustUS ...........0 eee XII. | 14 278

IV. 11 41 sodalis, Q..........000. V. 8 69

IV. 10 41 sodalis, var., Q.......... V. 9 69

IV. 25 42 || —— jucundus, 2 ............ V. 5 70

IV. 23 42 tricolor, Q ............ V. 6 70

LY. 24 42 || -—— Janus, var., d ........-. V. 4 yet

a o 20 togatus, var., .....4.- V. { | a } 71, 278

IV. 6 44 || —— nigrocinctus ...........-. V. 12 72

XII. | 10 263 || —— bilineatus .............. V. 13 | 72,279

III. 10 | 44, 2638 bilineatus, var., d ...... XII. 16 279

III. 9 | 44, 264 submarginatus, Q ...... VI. 16 279

TIT. 8 45 emaciatus ...........06- V. “17 75

III. 7 | 45, 264 obliquus ............4.. XII. | 15 281

XII. 2 265 hastatus, Q .........05. Vv. 7 TT

III. 11 46 || Diseodon normale, 9* ........ V. 20 | 82, 287

“XII. 1 267 -normale, 5 .........0.. VI. 20 | 82,287

IV. 19 50 cleroides, Qf .......05. V. 18 | 84, 287

IV. 20 50 || —— photinoides, Qf ........ Vv. 19 | 84, 288

Il. 13 | 51, 269 serricorne, Q .......... VI. 18 288

IV. 7 52 | —— histrio, ¢ § ............ V. 22 86, 288

XII. 3 270 difficile, Q|| ............ VI. 19 | 86, 288

XII. 5 270 purpurascens, QQ ...... V. 23 87

XI. 18 271 lampyroides, 9**........ VI. 15 | 89, 288

XII. 4 271 || Silis lycoides, 9 .............. V. 21} 91,290

OE o4, e —— serrigeraTT ........5... VI. 1 { 92, ae

IV. 15 54 || —— premorsa, d............) VIL 2 93

IV. 8 | 55; 272 || —— eroidestt .............. VI. 6 | 94, 296

IV. 9 | 55,272 chalybeipennis .......... XIt. | 18 300

TI. 18 | 55,272 || —— dilacerata, g............ VI. 3 96

XII 6 272 || ——albicincta, S$$.......... VI. 5 96

XII. 7 272 laticollis, ¢ .....e eee ee VI. 17 97

XII. | 26 271 || Trypherus forficulinus ........ VI. 7 98

IV. 26 57 || Lobetus mirabilis, ¢ .......... VI. 10 99

IIT. 15 58 -mirabilis, 9 ...........4. VI. 11 99

III. 14 | 58,275 | Belotus abdominalis .......... VI. 8 | 99, 308

XII. | 11 275 || Maronius dichrous, g ........ VI. 9 | 100, 309

III. 19 61 dichrous, var. .........- XII. | 17 309

XII. | 12 274 || Thinalmus pectinicornis, ¢ VI. 13 | 101, 309

XII. | 13 274 || Malthinus laticeps ............ VI. 14 103

* Telephorus normalis on the Plate.

+ Telephorus cleroides on the Plate.

t Telephorus photinoides on the Plate.

§ Telephorus histrio on the Plate.

|| Telephorus photurinus on the Plate.

{ Silis (?) purpurascens on the Plate.

** Telephorus lampyroides on the Plate.

+t Stlis varians, var., on the Plate.

tt Euryopa eroides on the Plate.

$$ Euryopa albicincta on the Plate.

LIST OF PLATES. xi

Plate Fig. Page. — Plate Fig Page.

Ptorthodius ramosus, d......-. VI. 12 | 107, 812 || Phonius sanguinipennist ...... VII. | 24 145

Euryopa singularis, ¢ ?.......s} VI. 4 | 109, 312 || Peecilochroa plumbea.......... XIII. | 11 337

Melitomma brasiliense, 2 ...... VII. 3 | 110, 313 || Aulicus monticola ......-..... VIII. | 18 146

Atractocerus brasiliensis ...... VII. 7 | 112,313 || Clerus quadrinodosus.......... VIII. | 19 151

Collops aulicus, d ..........-. VI. 21 113 quadrinodosus, var. ...... VIII of 151

aulicus, 2 ...... eee eee VI. 22 113 || —— x-album .............. VIII. | 22 151

tricolor ... 2... cee ee eee XITI 1 | 113,313 CINETEUS ... 2... eee ee eee Vil 5 152

vittatus, var., Q. ......-- VI. 23 | 114, 316 tubercularis .... ......| VIII. | 20 153

Anthocomus maculosus ......-- VII. 1 115 CONCINNUS. ... 6. eee eee ee VIII. | 12 153

pusillus ..........00065- VI. 24 116 contractus .........---6- VIII. | 13 154

____ hasalis, var. rufipennis* . VI. | 25 116 beatus .......... ee eee VIII. .| 23 154

Attalus (?) calearatus.......... XIII 3 319 PictuSs ...... eee ee eee Vill 7 155

subfasciatus ............ XIII 2 320 || —— opifex ...........0008- VITL 3 156

carinatus, G .... see eee XIII. 4 320 || —— cylindricus.............. VIII 6 157

Ebeeus eeneovirens .........--- VIL. 2 121 || —— recurvatus .........-... VIII. | 17 158

Lemphus serricornis .......... XIII 5 321 || —— esopius ..........60-0-, VIII 8 160

-| Dromanthus nitidicollis........ XIII 6 322 || —— cuneatus ...........4.. VIII. | 16 160

decipiens .........eeeee VII. 5 122 || —— plagiatus .............. XII. | 21 339

quadrimaculatus ........ VII. 4 122 || —— atriceps................ VIII. | 21 | 161,340

jucundus ...........06- VIL | 6] 123,323 . 9,10,

Cymbolus rufopiceus ..-....... xt. | 12 304 || imeonstans§ ....-..+..-. VIEL. yyy 163

Listrus cupreonitens+ ........ VII. 8 125 || Salleea necrobioides............ VIII. | 15 164

Astylus vittatus ......0...665, VII. 9 | 127, 330 || Blaxima rubripennis|| ........ VIII. | 14 165

octopustulatus, g.......- XII. | 25 330 || Epiphloeus setulosus .......... VIII. | 24 166

Antixoon eribripenne.......... XIII. | 13 3832 PYINCePS...... ce eee eee XII. 19 340

Tillus occidentalis, ¢.......... IX. 2 129 || —— erythrocephalus.......... VIII. | 25 167

occidentalis, 9? ........ IX. 1 129 || Hydnocera guatemale ........ IX. 3 168

collaris ..........00000- XIII. 7 332 subulata .........-2000. IX. a 169

Cymatodera sallai ............ VII. | 13 130 nitidicollis.............. IX. 9 171

discoidalis ............-- VII. | 10 131 || —— trichroa..............4. IX. 5 171

discoidalis, var........... VII. | 15 131 furcata ........ 0. eee ee XIII. | 14 342

— championi, gd .......... VII. | 12 131 || —— corticina, 9 ............ IX, 6 173

saturata....... 0. eee eee XIII. 8 334 Cincta «1... eee eee ees IX. 8 175

bipunctata.............. VII. | 16 | 135,334 | —— impressa .............. IX. 7 176°

——— marmorata.............. VII. | 14 136. || —— cylindricollis............ XIII. | 16 343

valida... 2c... eee eee eee VIL. | 11 137 VityiNa 6... eee eee eee XIII. | (15 343

Priocera stictica............-. VII. | 17 | 140,335 || Ichnea histrio................ X. 1 178

clavipes ..........ee eee. XIIT. 9 | 140, 335 mexicana, G....--.eeeee IX. 18 179

Colyphus ventralis ............ VIL. | 18 141 mexicana, Q........ sees IX. 19 179

quadrilineatus .......... VII. | 20 141 || —— mexicana, var., d........ IX. 21 179

—— quadrilineatus, var. ...... VII. | 21 141 || —— panamensis ............ X. 2 179

—— mutabilis .............. Vil. | 23 142 || —— religiosa...........-..4. IX. 20 180

—— mutabilis, var. .......... VII. 1 142 || —— disjuncta .............. IX. 23 180

—— bilineatus ...........4.. XIII. | 10 335 disjuncta, var. .......... IX. 24 180

floralis .......... eee ee VIL. | 25 142 enoplioides ..........4- IX. 22 180

distinctus ............5- VIL. | 19 143 vitticollis ...........0.4. XIT. | 24 345

signaticollis ............ VII. | 22 143 || Platynoptera mexicana ........ IX. 11 183

—— relucenS...........e eee XII. | 22 336 || Pyticera championi .......... IX. 10 184

criocerides.........+.065 VIII 2 144 || Orthopleura purpurea ........ IX. 17 186

Colyphus gracilis ...........- XIII. | 19 337 || Chariessa elegans ..........-. XII. | 23 346

* Anthocomus rufipennis on the Plate.

+ Listrus cupronitens on the Plate.

t Colyphus sanguinipennis on the Plate.

§ Clerus nitidus, var., on the Plate.

|| Clerus rubripennis on the Plate.

Xil LIST OF PLATES.

Plate. | Fig Page. Plate. | Fig Page

Pelonium luridum ............ XII. | 20 346 || Thaptor throscoides .......... X. 12 206

amabile .............06- IX. 15 189 | Cathorama seminulum ........ X. 13 | 207, 349

metallescens .......... IX. 16 189 || Mirosternus brunneivillis ...... XIII. | 18 349

bilineicolle.............- IX. 12 190 || Dorcatoma tomentosa.......... X. 16 | 208, 350

octonotatum ............ IX. 13 191 | Priotoma quadrimaculata + X. 17 | 209, 351

lineolatum .............. IX. 14 191 || Polycaon exesus, 2 .......... X. 18 210

Lebasiella pallipes ............ IX. 25 192 CXESUS, SD wee eee ee eee X. 19 210

bisbinotata ............ IX. 26 192 || Bostrychus verrucosus ........ X. 22 | 214, 353

Ptinus latefasciatus .......... X. 5 194 || Xylopertha sericans .......... X. 21 | 215, 353

lateralis...........-04.. X. 6 195 || Dinoderus perfoliatus.......... XIII. | 25 353

Trigonogenius niveus.......... X. 3 197 || Tetrapriocera longicornis ...... X. 20 218

niveus, Val. 1... 2.22000. X. = 197 || Xylographus suillus .......... XIII. | 21 354

arcuatuS .....0...e0eee XIII. | 20 847 latirostris, G............ XIII. | 23 355

Pitnus pygmeus.............. X. 8 198 latirostris, Q............ XIII. | 24 355

Trichodesma imperator ........ X. 9 199 || Macrocis taurus, ¢ .......... X. 25 219

albina ..........eceeeee X. 10 199 || Cis fasciatus, G we... eee eee X. 23 220

albistolata * ............ X. 7 200 bisbidens, d .......-..-- X. 24 921,

Anobium sericatum? .......... XIII. | 17 | 201, 347 ~tetracentrum, g ........ XIII. | 22 356

Micranobium pulicarium ...... X. 14 202 || Ceracis militaris, ¢ .......... X. 26 | 223, 358

Lidolius punctatus ............ X. 15 203 tricornis, ¢ we... eee eee X. 27 224

Thaptor pupatus.............. Xx. 11 205

* Trichodesma albistolatus on the Plate.

ft Dorcatoma quadrimaculata on the Plate.

BIOLOGIA CENTRALI-AMERICANA.

ZOOLOGIA.

Class INSECTA.

Order COLEOPTERA.

Tribe MALACODERMATA. -

Fam. LYCIDZ.

Subfam. LYCINA.

Of the three recognized subfamilies of Lycide this is the only one represented on

the American continents, the Calochromine and Homalisine being absent. It is, how-

ever, in the Tropical regions of the New World that the species of the family appear

to reach their highest development ; and in Central America, accordingly, the number

of species seems far from being exhausted at present. ‘The genera, on the other hand,

are few, and are not capable of very distinct division.

This being so, it would be unwise to generalize upon the distribution of particular

genera. The family, as a whole, is rather uniformly distributed, and takes three prin-

cipal forms—Lycus, Calopteron, and Metriorrhynchus. The first the typical form of

Africa, the second of America, the last of the east (represented by Hros in the northern

temperate zone).

The association of species from the other regions with these typical genera must be

considered a temporary expedient. We are not able, however, in the present state

of our knowledge, to separate them.

LYCUS.

Lycus, Fabricius, Mant. Ins. i. p. 163 (1787).

Reserving this genus for those species which have the head rostrate, and which also

show any considerable inflation of the elytra, there are seven species known in Central

America.

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, December 1880. B

2 MALACODERMATA.

1. Lycus schonherri. (Tab. I. fig. 3, ¢ .)

Lycus schénherri, Chevr. Col. Mex. Cent. ii. fase. vi. 147.

Hab. Mexico (Hoge), Puebla (Sallé).

Varies in size from 10 millim. to 18 millim.(¢). The body beneath is sometimes

yellow ; but the legs are constantly black, except the trochanters. The figure is taken

from a small male captured by Hége. In M. Sallé’s collection there were specimens

as fully developed as the following species.

2. Lycus carmelitus. (Tab. I. fig. 1, ¢.)

Niger, femorum basi abdominisque apice flavis ; elytris prothoraceque ochraceis, hoc vitta mediana, illis apice

oblique nigris.

Mas elytris infra humeros rotundato-ampliatis. Long. 18 millim., lat. 15 millim.

Femina oblonga, elytris infra humeros paululum dilatatis. Long 15 millim., lat. 6 millim.

Hab. Mexico (Hoge, 3 ), Guanajuato (Sallé, 3 ¢ ).

This species differs from L. schénherri in having the femora with the basal half yellow,

and the black of the apex of the elytra not so wide, especially at the suture ; its inner

margin is thus more oblique. In the male the seventh or penultimate segment is

acutely lobed at the sides; the centre is bisinuate, angularly emarginate in the middle.

The rostrum is as long as the thorax, with the antenne and rest of the head entirely

black. The second joint of the antennz is so short as not to be easily seen, the third

as long as the fourth and fifth united, compressed ; the remaining joints with their inner

apical angles acute, the inner edge sinuate. ‘The prothorax is about, or nearly, as long

as wide, prominent, and elevated into a small carina in front; a shallow, but widened,

channel in the middle; the hinder angles are acute, but not much produced in either

sex. The elytra show the usual four nervures distinct, the humeral or outer one most

so; between them are indistinct indications of transverse reticulation and longitudinal

cost, with intricate confluent punctures ; in repose the elytra overlap at the apex.

The figure is taken from Hége’s male specimen.

3. Lycus fernandezi.

Lycus fernandezi, Dugés, La Naturaleza, iv. p. 175, t. 6. fig. 5 ¢, fig. 6 9.

Hab. Mexico, Guanajuato (Sallé, 3 @ ).

This species is undoubtedly very closely allied to the one preceding, and may possibly

be only a local variation of it. The most constant differences are :—that the abdomen

is wholly yellow; the femora are yellow, except at their apexes ; the prothorax is often

entirely yellow, but in some specimens has a black vitta on the dorsal channel; the black

of the apex of the elytra is more extended in the disk, and is emarginate where the

humeral nervure cuts it; the subapical segment in the male is less acutely emarginate.

LYCUS. 3

4. Lycus godmani. (Tab. I. fig. 2, ¢.)

Niger, thorace ochraceo; elytris rubricatis, basi ochraceis, his sutura usque ad medium, illo vitta mediana

nigricantibus.

Mas elytris infra humeros rotundato-ampliatis ; prothorace lateribus subparallelis, angulis posticis fere rectis,

paulo productis. Long. 15 millim., lat. 10 millim.

Femina elytris magis ovalibus, minus ampliatis; prothorace basi latiore, anigulia posticis acutis, lateribus

explanato-elevatis. Long. 14-18 millim., lat. 7-10 millim.

Hab. Mexico, Misantla (Hoge, 3 2 ), Cordova (Sallé, 2 ).

This distinct and beautiful species forms a transition to the Lycostomi, while retaining

in a considerable degree the inflated form of typical Lyct. The abdominal segments are

of the normal structure; the seventh segment in the male is acutely cut out in the

middle. In some specimens the abdomen has the sides yellow, but is usually black,

with the head and limbs of the same colour. ‘The elytra are brick-red, shading into

ochreous at the base; the third nervure is but little raised, the sculpture between very

intricate ; while intermediate longitudinal nervures can be traced, there are no trans-

verse cells, but confluent and rugose punctuation. The females have the sides of the

prothorax more expanded and reflexed than the male (possibly owing to their being

larger specimens) ; it is carinate in front, obsoletely channelled in the centre of the disk.

A central vitta, the scutellum, and suture as far as the middle of the elytra are black.

The figure is from the Misantla specimen.

5. Lycus scutellatus.

Niger, prothorace elytrisque rubris, his circa scutellum et ad apicem late, illo vitta mediana nigris.

Mas elytris apicem versus dilatatis, segmento ventrali septimo apice haud exciso. Long. 15 millim.

Femina elytris minus dilatatis.

Hab. Mexico, Cordova (Sallé, 3 @ ).

This appears to be a variable species. Of the three examples in M. Sallé’s collection

the two males have almost half of the elytra black, while one wants the black scutellar

patch; and this example is of paler yellow, and has the base of the femora, the rostrum,

and sides of the abdomen yellow. The female has only the apical third and the

scutellar region black. The legs are black; but the anterior two pairs at the extreme

base and the sides of the abdomen are yellow.

The elytra are strongly costate, with subrugose interstices, the third nervure less raised

than the others. The black apex of the elytra sufficiently distinguishes it from L. godmani,

to which it is clearly allied.

6. Lycus sallzi.

Niger, femorum basi et abdominis lateribus flavis, prothorace elytrisque ochraceis, his basi ac tertia parte

apicali, illo vitta mediana nigris; elytris postice paulo ampliatis, interstitiis lineis transversis nonnullis

reticulatis. Long. 18 millim., lat. 10 millim. 9°.

Hab. Mexico, Puebla (Sallé, ¢ ).

B 2

4 MALACODERMATA.

Thorax transversely quadrate, the front angularly prominent and carinate, the disk

obscurely channelled, the lateral margins irregularly rounded, parallel near the base ;

hind angles right. Scutellum black, margined with fuscous at the apex, foveolate.

Elytra with about one fifth at the base and one third at the apex black; punctuation

very obsolete ; distinct transverse and indistinct intercostal lines.

A single female is in M. Sallé’s collection.

7. Lycus fuliginosus. (Lycostomus fuliginosus, Tab. I. fig. 5, 3.)

Nigro-fuscus, opacus, thorace elytrorumque basi (sutura excepta) sordide testaceis, illo vitta mediana fusca.

Mas elytris infra humeros medice ampliatis ovalibus, segmento septimo ventrali exciso. Long. 14-16 millim.,

lat. 10 millim.

Femina latet.

Hab. GuateMALA, Calderas (Champion).

In form and size allied to L. godmani, but differing in its obscure coloration, and in

the elytra being a trifle less expanded. The tibie are nearly straight, the anterior pair

very slightly curved. This character will prevent its being confounded with L. sordidus,

in which they are strongly curved at the base in the male.

LYCOSTOMUS.

Lycostomus, Motschulsky, Bull. Mose. 1861, i. p. 186.

This genus is simply an artificial division of Zycus, founded on an Asiatic form, and

only differing in the less expansion of the elytra in the males. The American species,

which agree in this respect, present nothing by which we can separate them from typical

Lycostomi. Indeed one species (L. lineicollis, Chevr.) is so like the Indian Lycostomus

thoracicus, Waterh., that it might readily be confounded with it. Nine species from

Central America seem properly associable with this type.

1. Lycostomus lineicollis. (Tab. I. fig. 4.)

Lycus lineicollis, Chevr. Col. Mex. Cent. ii. fase. vii. 149.

Hab. Mexico, Perote, Coatepec, Esperanza (Hége), Cordova (Sailé).

In the male the tibie are very little bent, and when closed upon the femora no space

is left between them; the seventh segment is excised, and, with the preceding ventral

plates, is acutely lobed at the sides.

The figure represents a specimen from Coatepec.

2. Lycostomus tabidus.

Niger, abdominis apice, prothoracis lateribus, elytrisque pallide flavis. Long. 15-18 millim. 9°.

Hab. Mexico, Peras, Oaxaca (Sallé, 2 ).

A species nearly allied to L. lineicollis, and of which I have as yet seen only four females.

LYCOSTOMUS. 5

These, however, differ in the following particulars from females of that species :—In

large specimens the thorax (though variable) is wider; the black portion of the disk is

wider at the base; the colour of the thorax and elytra is quite different, being a dirty

horn-colour. The apex of the abdomen is pale.

3. Lycostomus sordidus. (Tab. I. fig. 6, 2.)

Nigro-piceus, subnitidus, prothoracis lateribus elytrorumque margine humerali testaceis.

Mas elytris vix ampliatis, segmento septimo ventrali haud exciso, tibiis omnibus basi fortiter curvatis.

Long. 14 millim., lat. 7 millim.

Femina elytris angustioribus, tibiis leviter curvatis.

flab. Guatemata, Calderas (Champion, 3 2); Nicaracua, Chontales (Janson, 2 );

Costa Rica, Volcan de Irazu (Rogers, 2, var.).

A Calderas specimen is figured.

4. Lycostomus championi. (Tab. I. fig. 7, 2.)

Nigro-piceus, nitidus, prothoracis limbo elytrisque vitta humerali lata, ante apicem desinente, testaceis.

Mas elytris dilutioribus, infra humeros modice ampliatis ; femoribus (apicibus exceptis) et abdominis margine

rufo-testaceis, tibiis basi fortiter curvatis. Long. 10 millim., lat. 6 millim.

Femina elytris minus ampliatis, femoribus nigris vel basi extrema testaceis, abdomine margine apicali piceo.

Long. 11-12 millim., lat. 5-6 millim.

Hab. GuaTEMALA, Duefias, Capetillo (Champion).

A long series of specimens of this species were sent by Mr. Champion. It varies some-

what in the extent of the yellow marginal stripe; in some few cases the entire base of

the elytra is yellow. It is allied to ZL. sordidus; but the difference of colour in the

The seventh abdominal

segment of the male is not acutely excised, but simply with a very shallow wide emargi-

nation, and has, as well as the sixth, a lancet-shaped lobe at the hind angles.

femora of the sexes will prevent their being confounded.

‘ peci gured is from Duefas.

5. Lycostomus deustus.

Nigro-fumosus, prothorace elytrisque ad basin late sed indeterminate sordide testaceis, his subparallelis,

infra humeros paulo ampliatis, illo disco plus minusve infuscato, subquadrato, lateribus sinuatis. ¢ 9.

Long. 9-11 millim.

Mas tibiis intermediis et posticis fortiter curvatis.

Hab. Panama, Matachin (Thieme).

A beautiful series of specimens of this distinct species was obtained by Dr. O. Thieme,

and obligingly placed at my disposal by M. R. Oberthiir. In form it resembles species of

the Z. loripes group. The males are not usually more widened behind than the females,

The rostrum is of moderate length. The thorax has the sides converging only slightly

till they meet the sinuate front. The yellow basal portion of the elytra shades off

gradually into the smoky-black opaque apical part, which is more than half of their

whole length. |

6 MALACODERMATA.

6. Lycostomus loripes. (Tab. I. fig. 8, 3.)

Lycus loripes, Chevr. Col. Mex. Cent. ii. fase. vil. p. 148°.

Lycus testaceus, Dej. Cat. .

Hab. Mexico’, Guanajuato, Oaxaca, Teapa (Sallé), Almolonga (Hége) ; GuaTEMALA

(Sallé).

I have examined a ‘considerable series of specimens in M. Sallé’s collection, by whom

this species was originally discovered, and can only come to the conclusion that it varies

in size and colour, but that they are not specifically distinct. In the Guanajuato speci-

mens the thorax has the front bisinuate, with prominent anterior angles, and the whole

insect is rather more shining and ferruginous red. In HOge’s specimens, one of which

is figured, the scutellum is yellow; and I have seen one specimen with the tibie yellow.

7. Lycostomus sommeri. (Tab. II. fig. 2.)

Pallide testaceus, antennis (basi excepta), tibiis, tarsis elytrorumque apice nigris ; thorace antice elevato vix

carinato, postice canaliculato, angulis posticis acutis. 9. Long. 11 millim.

Hab. Mexico, Teapa (Sallé) ; Nicaragua, Chontales (Belt).

Allied to Z. loripes, but distinct by the black apical third of the elytra &c.

The Teapa specimen is figured. :

8. Lycostomus semiustus. (Tab. I. fig. 9, 9.)

Lycostomus semiustus, Chevr. Col. Mex. Cent. i. fase. v. 105.

Hab. Mexico, Cordova (Sallé, 3 2), Jalapa (Hoge, ¢ ).

The tibie of the male, especially the hind pair, are much bent, and the posterior

femora thickened ; the trochanters subdentate.

A variety taken by Hoge at Jalapa, whence the specimen figured was obtained, is

paler in colour than the type, and has the underside of the body partly yellow; but,

from the shrivelling of the elytra, this I think is due to immaturity.

9. Lycostomus carnifex.

Niger, prothoracis lateribus elytrisque sanguineo-rufis, his circa scutellum nigris, lineis octo leviter elevatis ;

prothorace transverso, antice carinato, medio canaliculato, angulis posticis acutis productis. Rostro in

utroque sexu perbrevi. ¢ 2. Long. 11 millim.:

Mas elytris leviter ampliatis, segmento septimo inciso.

Hab. Mexico, Jacale (Sal/é).

This insect may profitably be compared with Lygistopterus sanguineus (L.), which

it resembles in size and colour, as illustrating the differences between the genera. ‘The

rostrum is as short as in that species; the second joint of the antenne, however, is

much shorter. The thorax has the usual carina in front. In L. sanguineus the channel

LYGISTOPTERUS. a

is continued to the front, the hind angles are acute and turned outwards, and the disk

lacks the oblique ridge from the hind angle so characteristic of Lygistopterus. Both

of these species also closely resemble Plateros lateritiws, which of course is known by

its having no rostrum.

LYGISTOPTERUS.

Lygistopterus, Mulsant, Ann. Soc. Agr. Lyon, 1888, p. 39.

A genus not hitherto recorded from the northern continent, if we except one species

from the United States, which probably belongs to it (Z. perfaceta, Say), and having for

its type the European Dictyoptera sanguinea. It is, however, well represented in South

America by fine species of elongate parallel form, with the elytra blue or blackish at

the apex, with the base more or less red. ;

It may perhaps be best known by the deep irregular sculpture of its thorax, which

consists of a central channel, continued to thé apex, of which the sides are often raised,

and from the front of which an oblique carina proceeds to near the hind angles. The

central channel is often angularly widened in the middle. The rostrum is variable in

length, often very short. The antenne have the second joint short, but not so short

as in the preceding genera. The elytra usually have three or four raised lines, the

surface covered with very close intricate puncturing, partly concealed by fine close

pubescence.

Four species have at present been seen by me from Central America.

1. Lygistopterus nobilis.

Niger, nitidus, prothoracis margine laterali elytrisque flavis, his dimidio apicali nigro-ceruleis, sutura juxta

scutellum nigra. Long. 15 millim.

Hab. Nicaracva, Chontales (Janson).

While superficially very much resembling L. eximius, Bourg., this species cannot be

confounded with it if the following characters are observed :—the thorax has the width

of the elytra at the base, is narrowed towards the front, the sides are much more

widely yellow; and the elytra have a black patch round the scutellum, extending a

little way down the suture. The rostrum is also of an average length, instead of being

very short.

2. Lygistopterus amabilis. (Tab. I. fig. 10.)

Niger, nitidus, prothorace et elytris flavo-testaceis, his post medium nigro-cyaneis, illo vitta mediana nigra,

angulis posticis late rotundatis. Long. 15-16 millim.

Hab. Nicaraeua, Chontales (Le/t).

Thorax disciform, the central channel rather linear and narrow, and, in one specimen,

not distinct in front. Both the specimens are females; they have the apical segment

with an acute incision, which is continued as a deep fovea to its base.

8 MALACODERMATA.

3. Lygistopterus sulcicollis.

Niger, rostro tibiis anticis longitudine equali; elytris sordide flavis, circa scutellum usque ad medium infu-

scatis ; thorace ineequali, sulco profundo in medio dilatato, lateribus flavis. 2. Long. 16 millim.

Hab. Mexico, Juquila (Sallé).

This peculiar species is in the colour of the elytra unlike any which are yet described ;

yet its characters are entirely those of a Lygistopterus. The thorax has the central

channel wide and deep, its sides and the oblique carina very strongly raised, the former

terminating in a tubercle near the base, which, with the sides, is reflexed. It is unique.

4, Lygistopterus hematopterus. (Tab. II. fig. 1.)

Nigro-cyaneus, elytris rubris, prothorace inequali, sulco mediano dilatato, rostro brevi. ¢ 2. Long. 12-138

millim.

Hab. Mexico, Jacale (Salé).

Blue-black, shining beneath ; antenne scarcely half the body’s length, compressed,

not serrate ; the joints scarcely widened more internally than outwards ; rostrum short.

Thorax as wide as long, the usual parts raised, and very evident blue-black rather

shining. Elytra bright brick-red, clothed with very close pubescence, with not distinct

raised lines. ‘The male has the penultimate segment not excised.

CALOPTERON.

Calopteron, Guérin, Voyage Coquille, p. 72 (18380).

Upward of a hundred species have now been described, and nearly all from South

America. Calopteron appears to be the characteristic genus of the Lycide in America ;

I have not seen any species from other parts of the world which can properly be referred

to it. It extends as far north as the United States; its limits in the southern direction

are not well ascertained.

At present the genus contains both species with very inflated elytra and very narrow

linear insects, and is no doubt capable of subdivision. Hitherto but one species (C. cor-

rugatum, Candéze) has been recorded, in any systematic work, from Central America ;

recent exploration has shown that they are as abundant there as in South America.

We have now to record twenty-seven species.

Section A i. Elytra widened posteriorly ; thorax with a simple carina ;

antenne at most only serrate.

1, Calopteron bifasciatum. (Tab. I. figg. 11, 12 var.)

Niger, thorace subquadrato lateribus luteis ; elytris ad apicem dilatatis et convexis, lete caxruleis, basi et fascia

pone medium flavis. ¢. Long. 14-20 millim.

CALOPTERON. 9

Var. a. Elytris pallide flavis, fascia subbasilari marginem non attingente et apice late ceruleis. Long. 13-15

millim.

Var. 6. Thorace et elytris flavis, his apice late violaceo, illo linea mediana nigra. Long. 14-20 millim.

(Tab. I. fig. 12.)

Hab. Type: Mexico, Jalapa (Hége), Vera Cruz (Sallé); Guatemana, Zapote, San

Gerdnimo, Pancina, San Joaquin, Vera Paz (Champion); British Honpuras, Belize

(Blancaneaux); Costa Rica, Volcan de Irazu (Rogers). °

Var. a: Mexico, Vera Cruz (Sallé); Costa Rica, Caché (Rogers).

Var. 6: Mexico, Vera Cruz (Sallé); Nicaragua, Chontales (Janson); Costa Rica

(Mus. Gorham).

Very nearly allied to dasale, Kirsch. The elytra are clathrate, reticulate ; there are

four principal nervures; the intervals are divided by longitudinal costules below the

middle; the outer interval (7.¢. that next the outer margin) is not divided till just

before the apical blue portion; but individual cells are frequently divided, or the

transverse lines branch ; towards the apex itself the cellular formation is very irregular ;

the first, second, and fourth nervures are continued. The portion of the elytra imme-

diately before the apical blue part is much depressed transversely ; the suture is sinuous ;

and the elytra in repose overlap.

This species has been identified by M. Bourgeois with the C. bifasciatum of Dejean’s

Catalogue.

The figure 11 is of a specimen from Zapote ; the figure 12 of var. 6 from a Chontales

specimen.

2. Calopteron corrugatum. (Tab. II. fig. 3.)

Calopteron corrugatum, Candéze, Mém. Liége, 1867, p. 357, t. 3. fig. 1.

Hab, Mexico, Cordova (Sallé, type) ; Nicaragua, Chontales (Belt), San Juan (Sailé).

This species resembles the var. 0 of C. bifasciatum in colour, but is essentially

distinct ; the elytra are very slightly depressed, their suture is not sinuous, nor do they

overlap; the first four interstices are not divided, but single cells are so occasionally.

The transverse lines vary in the degree of closeness in different specimens.

The figure is of a Cordova specimen.

3. Calopteron pallidum. (Tab. I. fig. 14, 2.)

Nigrum, prothoracis lateribus et elytris pallide flavis, his fascia ante medium indeterminata fusca, illo linea

mediana nigra; elytris postice spathulato-dilatatis, nervulis quatuor elevatis, interstitiis transversim

reticulatis, interstitio extimo ad apicem diviso. Long. 16-17 millim.

Hab. Costa Rica, Caché (Rogers).

The elytra are very much more dilated before the apex than in the variety of

palpale, which has a dark fascia; and, as a consequence, the fifth or exterior interstice

is wider ; and the cells are here divided by a distinct line.

BIOL. CENT.-AMER., Coleopt., Vol. IIT., Pt. 2, December 1880. C

10 MALACODERMATA.

4, Calopteron palpale.

Calopieron palpale, Kirsch, Berl. Zeit. 1865, p. 58°.

Hab. Guaremaua, San Juan, Vera Paz (Champion) ; Nicaracua, Chontales (Janson) ; |

Costa Rica, Caché (Rogers).—CotomBia!; BRaziu.

Var. a. Elytris fascia parum distincta nigrescente.

Hab. Nicaraeva, Chontales (Belt); Costa Rica, Caché (Rogers).

Var. 6. Corpore flavescente ; antennis nigris, basi flavis; tarsis fuscis.

Hab. Panama, Chiriqui.

Var. c. Flavum, antennis, tibiis, tarsis et elytrorum apice nigris.

Hab. Nicaragua (Belt).

Var. d. Flavum, antennis nigris, basi testaceis ; elytris fascia interrupta nigrescente.

Hab. GuateMata, Zapote (Champion).

Although Kirsch does not appear to have seen varieties of this species, I have no

doubt they are all referable to one type; indeed it is probable that many of the allied

species, including the following one, are only forms, inseparable except by colour,

though tolerably constant as races where they occur.

5. Calopteron affine. (Tab. I. fig. 13, 2.)

Calopteron affine, Lucas, Voy. Casteln. 1859, p. 80}.

Hab. Mexico, Orizaba (Sallé) ; Guatemata, San Gerénimo, Cubilguitz (Champion) ;

Nicaracva, Chontales (Belt, Janson).—Braziu 1.

A Chontales specimen, collected by Mr. Belt, is figured.

6. Calopteron melanopterum. (Tab. I. fig. 15.)

Calopteron melanopterum, Lucas, Voy. Casteln. 1859, p. 81}.

Hab. GuateMata, San Gerénimo ( Champion).—Braziu}.

A specimen from Rio Janeiro, in my collection, shows faint indications of the pale

spots which are conspicuous in the single specimen which has at present come from

Central America.

7. Calopteron reticulatum. (Tab. I. fig. 17.)

Lycus reticulatus, Fab. Syst. Ent. p. 203}.

Lycus reticulatus, Ol. Ent. 11. 29, t. 1. fig. 7°.

Calopteron typicum, Newman, Ent. Mag. v. p. 380.

Calopteron duplicatum, Fald. Proc. Ac. Phil. i. p. 3038.

Hab. Nort Americal?, New York, Texas (Belfrage).—Muexico, Jalapa (Hége),

Oaxaca, Vera Cruz, Puebla (Sadlé); Guaremata, San Gerdénimo, Duefias, Zapote

(Champion) ; Costa Rica (v. Patten).

CALOPTERON. 11

A widely dispersed and very variable species, with which very probably one or two

more of the following forms will have to be united.

The figure is of a specimen from San Gerénimo.

8. Calopteron serratum.

Lycus serratus, Linn. Syst. Nat. i. 2, p. 649°.

Lycus serratus, Ol. Ent. ii. 29, t. 1. fig. 5.

Hab. Guatemata, Zapote (Champion); Nicaracua, Granada (Sallé), Chontales

(Janson, Belt)—Souta America, Cayenne}.

Apparently the only distinction between this species and C. reticulatwm is the com-

bination of a yellow body with a black scutellar patch, and the greater or less inden-

tation of the black apical portion at the first costal nervure.

9. Calopteron jimenezi.

Calopteron jimenezi, Duges, La Naturaleza, 1878, iv. p. 181, t. 6. fig. 8.

Hab. Mexico, Guanajuato (Sallé).

10. Calopteron flavipes. (Tab. I. fig. 18, 2 .)

Calopteron flavipes, Blanch. Voy. d’Orb. Ent. p. 126°.

Hab. Guarema.a, Zapote (Champion).—Bo.tvia'.

The body, scutellum, legs, thorax, and base of the antenne are yellow; the sides of

the abdomen, tarsi, and disk of the thorax are slightly infuscate.

This species and the three preceding it agree closely in form and sculpture; they

differ in characters which, though tolerably constant when specimens from one locality

are examined, will, I believe, prove illusive when tested by series from intermediate

places. |

11. Calopteron divergens. (Tab. II. fig. 4, 3.)

Nigrum, trochanteribus, femoribus basi, prothorace (linea mediana excepta), elytrorum basi et fascia in medio,

postice dentata, flavis ; elytris obcordiformibus, ad apicem valde expansis divergentibus. ¢ 2.

Mas brevior, elytris ad apicem fortiter distantibus. Long. 10-12 millim., lat. max. 10 millim.

Femina elytris minus expansis vix distantibus. Long. 15 millim., lat. max. 9 millim.

Hab. Nicaracua, Chontales (Janson).

A species or race differing so remarkably from all other forms of reticulatum in the

short obcordate form of the elytra, and in their divergence at the sutural angle, that it

seems more worthy of a specific name than some others. In addition to this character,

the black portion of the thorax is reduced to a narrow line, its margins are very much

yeflexed, and its posterior angles acute. The elytra have no scutellar patch ; the hind

margin of the yellow fascia is dentate on the second nervure and produced a little on

12 MALACODERMATA.

the suture. The second and fourth nervures are costate, the first and third lie in the

valley between. The black fascia shows a tendency to become obsolete, in the females

especially, in one specimen of which it is reduced to two spots. ‘The underwings are

ample. |

12. Calopteron scapulare. (Tab. I. fig. 25; Tab. II. fig. 5, ¢ .)

Nigrum, prothorace (disco excepto) elytrisque ad humeros plus minusve sordide rufis. Long. 6-9 millim. ¢ 9.

Hab. Mexico, Vera Cruz (Sallé); Guatemaua, Zapote, La Tinta, San Juan, and Vera

Paz (Champion).

The small size, moderately dilated form, obscure blackish colour, with shoulders more

or less yellowish red, and thorax transverse, with acute hind angles and well-marked

carina, will enable one to recognize this species. The elytra are more suddenly

dilated, and more rounded at the apex in the male. The second and fourth nervures

are costate.

This little Calopteron was taken in considerable numbers by Mr. Champion at Zapote.

It stands in Parisian collections under the name C. scapularis, and was so named for me

by M. Bourgeois.

The figures are from Zapote specimens.

13. Calopteron posticum.

Calopteron posticum, Kirsch, Berl. Zeit. 1870, p. 8378; Bourg. Ann. Soc. Ent. Fr. 1879, p. 291.

Nigro-piceum, capite, prothorace, pectore, pedibus anticis elytrisque testaceis, his fascia ante medium, ad

suturam latiore, apiceque nigro-fuscis; prothorace subquadrato, valde carinato, angulis posticis acutis,

productis. Long. 7-8 millim.

Hab. Nicaracua, Chontales (Janson); Panama, Matachin (Thieme).—Co.omBta’.

A few specimens only of this have been received from Chontales. It is rather more

depressed than C. scapulare; the head is frequently infuscate on the crown, as are also

the tips of the palpi. All the tarsi, and often the anterior legs, are dark, excepting at

the base. The dark fascia of the elytra is usually interrupted by the yellow suture

and costate nervures, and is often nearly obliterated. It is very nearly allied to the

following species; but the antenne appear to me to be longer. Mr. Oberthir has

communicated to me a fine series of this species taken by Dr. Thieme in Panama.

14. Calopteron juvenile. (Tab. I. fig. 16.)

Calopteron juvenile, Bourg. Comptes Rendus Soc. Ent. Belgique, 1879, p. xvi.

Hab. Costa Rica (v. Patten), Caché (Rogers).

Very like the last species, but darker in colour, the antennz scarcely so long as the

elytra, and with only a shoulder-spot of yellow at the base. The central yellow fascia

is usually neatly and distinctly defined. The thorax is similar in form to that of

C. posticum, with acute produced hind angles.

CALOPTERON. 13

Section A ii. Thorax with a simple carina; antenne pectinate in the male, acutely

serrate in the female ; three raised lines on the elytra.

15. Calopteron triste. (Tab. I. fig. 21, 2.)

Nigrum, elongatum, elytris lineis tribus elevatis, intervallis transversim reticulatis; prothorace carinato, lateribus

flavis sinuatis.

Mas antennis flabellato-pectinatis, abdominis segmento penultimo profunde exciso. Long. 10 millim.

Femina antennis acute serratis, abdominis segmento apicali integro. Long. 11 millim.

Hab. GUATEMALA, Calderas, Duefias (Champion).

The elytra are very thin, and usually shrivelled when dry; but it is a very easily

recognized species if the three raised nervures are noticed, together with the entirely

black elytra (which are gradually widened to the middle of their length), the thorax

with yellow sides, and the undivided carina. C. tristis, Waterh. (Trans. Ent. Soc. 1878,

pp. 99 & 106; Illust. of Typ. Col. in Coll. B. M. p. 24, t. vi. fig. 5), is a different species,

for which he has made a genus, Hurrhacus, allied to Emplectus.

The figure represents a Calderas specimen.

16. Calopteron rufulum. (Tab. II. figg. 8 3,9 2.)

Rufo-testaceum, abdomine, pedibus (basi excepta), antennis, prothoracis carina et scutello nigris ; elytris tricos-

tatis, intervallis scalariformibus ; prothoracis lateribus fortiter bisinuatis. ¢ 9.

Mas antennis flabellato-pectinatis. Long. 6-9 millim.

Femina antennis acute serratis. Long. 9-11 millim.

Hab. Mexico, Cordova (Sallé); Guaremaua, Zapote, San Gerdénimo, Cubulco, Cubil-

guitz (Champion) ; Costa Rica, Caché (Rogers).

M. Bourgeois has informed me that this is the C. rufulum of Dejean’s Catalogue ; and

I adopt the name for convenience. It must not be inferred that I have myself com-

pared it, nor that I have seen specimens from the locality there given, viz. Carthagena.

Two specimens in Sallé’s collection have a minute black spot at the apex of the elytza.

The peculiar form of the thorax is well shown in our figure of the female ; but it is fre-

quently as strongly indented in the male.

The male figure is a Zapote specimen; the female from Cordova.

Section A iii. Elytra parallel, with four raised lines; thorax with a simple carina ;

antenne often pectinate, at least in the male.

17. Calopteron pennatum. (Tab. II. figg. 11 2,12 ¢.)

Calopteron pennatum, Bourgeois, Ann. Soc. Ent. Fr. 1879, p. 32°.

Hab. Mexico, Cordova (Sallé!); GuateMata, Chiacam, Cahabon (Champion); Nica-

racua, Chontales (Janson); Costa Rica (v. Patten).

The male, fig. 12, is from San Gerénimo; figure 11 is of a female from Guatemala.

Var. Minor, elytris triente basali tantum flavo, intervallis ad apicem irregulariter clathratis subrugosis.

Hab. GuateMaLa, San Gerénimo, Balheu (Champion).

14 MALACODERMATA.

18. Calopteron obliquum. (Tab. II. fig. 13.)

Ezxos obliquus, Say, Boston Journ. i. p. 154".

Lineare, nigrum, prothoracis lateribus et elytrorum dimidio basali, sutura excepta, rufo-ferrugineis ; elytris

lineis quatuor, secunda et quarta fortiter elevatis ; pedibus longis, trochanteribus pallidis. ¢ 9.

Mas minor, magis linearis, segmento ventrali septimo angulariter exciso tantum distinctum. Long. 53-7 millim

Femina major. Long. 9-10 millim.

Hab. Merxico1, Cordova (Sallé), Jalapa (Hoge); Guatemata, San Gerénimo, San

Juan, Senahu, Sabo, Cahabon, Balheu, Chiacam, Cubilguitz (Champion); Nicaraceua,

Chontales (Janson).

This seems to be a common species in Mexico and Vera Paz. The thorax is narrowed

from the base to the front ; its sides are a little sinuate, and the hind angles very acute and

produced. ‘The carina is entire, and is usually pale with the disk black on each side.

The elytra have the second and fourth coste strongly raised; and the black of the

apical portion extends, as usual, further up the intervals, the outer margin and the

fourth costa being continued as yellow lines further than the second. The suture is

black as far as the end of the first interval.

A Sabo specimen is figured.

19. Calopteron lineare. (Tab. II. fig. 14.)

Lineare, nigrum, prothorace elytrisque rufo-testaceis; his 4-costatis, intervallis plus minusve nigrescentibus,

regulariter clathrato-punctatis ; illo disco nigro, carinato carina flava ; pedibus longis, basi flavis ; antennis

utroque sexu serratis. Long. 7-8 millim.

Hab. GuatEMALA, Capetillo, Zapote (Champion) ; Costa Rica, Volcan de Irazu, alt.

6000-7000 feet (Rogers).

The extremely linear form, and evenly costate elytra, with square punctures regularly

disposed in the interstices, and their disposition to be dark, leaving in some examples

only the alternate costee pale, will cause this elegant insect to be recognized among its

allies. The thorax is narrowed from the base to the front, which is round; the hind

angles are acute, the basal margin bisinuate, with the middle very finely cut out where

the carina ends; but this is not clearly visible in all examples.

The figure is of a large specimen from Irazu.

20. Calopteron terminale.

Lineare, nigrum, prothorace elytrisque testaceis; illo disco fusco, carinato, lateribus fortiter bisinuatis; antennis

serratis, articulo ultimo flavo; pedibus longis, basi flavis; elytris squamulis minutis vestitis, 4-costatis,

costis secunda et quarta elevatis. Long. 54-73 millim.

Hab. GuatTeMALA, San Juan (Champion); Nicaragua, Chontales (Janson).

The smallest species of the genus I have yet seen, and very like C. dineare, but clearly

distinct by the yellow terminal joint of the antenne, the indented, sinuate sides, and

prominent front of the thorax (which has the carina entire and the base without the

least appearance of a notch), and the entirely pale elytra.

CALOPTERON. 15

21. Calopteron ichnoides. (Tab. II. fig. 21, 3.)

Nigrum, prothoracis lateribus maculaque humerali late flavis; elytris postice paullo dilatatis, lineis quatuor,

secunda et quarta elevatis, intervallis irregulariter reticulatis ; antennis acute serratis, fere pectinatis. ¢ 9.

Long. 73-11 millim.

Mas elytris postice modice ampliatis, antennis subpectinatis.

Femina elytris subparallelis, antennis acute serratis.

Hab. Guatemata, Capetillo, Duefias, Purula (Champion).

This and the following species closely resemble each other ; and their determination

can scarcely be effected unless both are studied together. They have a considerable

likeness to Ichnea mexicana, a species of Cleride.

The figure represents a Capetillo specimen.

92. Calopteron mimicum. (Tab. II. fig. 22.)

Nigrum, prothoracis lateribus angustius strigaque humerali in callo per costam paululum provecta flavis ;

elytris subparallelis, lineis quatuor, secunda et quarta magis elevatis, intervallis reticulatis, areolis sub-

quadratis; antennis serratis, articulis tertio usque ad decimum angulis internis subrectis. Long.

7-9 millim.

Mas minor et angustior, antennis articulis interne subacutis.

Hab. GuateMaLa, Capetillo, Duefas, Senahu (Champion).

When this species is compared with C. ichnoides, it will be seen to be more parallel ;

and the humeral striga is narrower, but continued further along the humeral costa.

The most important difference is in the antennex of the males. In C. mimicum the fourth

to the tenth joints are serrate, their apical internal angles are nearly right angles; in

C. ichnoides they are produced into an acute flat “ramus,” which is longer than the

joint itself. It appears to be a commoner species.

Our figure represents an example from Capetillo.

Section B. Thorax with the carina divided behind ; elytra moderately widened, with

four raised lines, areolets irregular.

23. Calopteron beltii. (Tab. IT. fig. 19, 2 .)

Nigrum, pectore, pedibus basi, prothorace elytrisque rufo-testaceis, his macula magna subrotundata paulo

post medium, illo carina postice canaliculata et vitta mediana nigris. ¢ 9. Long. 10-15 millim.

Hab. Nicaracua, Chontales (Bel?).

The species of this section of Calopteron are easily recognized by their rather soft,

somewhat convex elytra, with four nervures, two or three of which are more strongly

raised, with irregular areolets, and by the divided carina of the thorax, which thus has

a narrow channel in its basal half, which is sometimes open at the base, at others

closed.

Several species thus characterized have been described from Colombia and New

Granada. C. beltit is subelongate, rather less so in the male; the thorax is narrowed

in front, the sides scarcely sinuate, the hind angles acute. The elytra are sometimes a

16 MALACODERMATA.

little infuscate round the scutellum, which is black. The black patch is not so wide

either at the suture or outer margin as in the centre. The abdomen is occasionally

yellow in its centre to near its apex. Very few specimens have yet been sent.

94. Calopteron miniatum.

Nigrum, prothoracis lateribus elytrisque miniatis ; his lineis quatuor, tertia subobsoleta, sutura basi nigricante.

Long. 10 millim. 9°.

Hab. Costa Rica, Rio Sucio, Caché (Rogers).

The thorax has the sides evenly narrowed to the front in the female. In a specimen

which is probably the male the sides are subsinuate. The body is wholly black, the

antenne a little acutely serrate; the sides of the thorax and elytra vermilion-red, with

the exception of the suture for about one quarter at the base.

25. Calopteron matutinum. (Tab. II. fig. 7.)

Nigrum, prothoracis lateribus et elytrorum triente basali (sutura excepta) late ferrugineis; elytris lineis

quatuor elevatis, tertia obsolescente ; antennis latis, utriusque sexus serratis. ¢ 9. Long. 5-12 millim.

Mas multo minor, segmento penultimo exciso.

Femina major, segmento apicali in medio diviso.

Hab. Muxtco, Toxpam (Sallé); Guatemata, Cubilguitz, Cahabon, Chiacam, La Tinta,

San Juan (Champion). :

This and the two following species present an instance of almost complete similarity

in colouring and form. The fowr nervures will distinguish the present one from

C. tricostatum, the black suture from C. difficile.

The thorax has the carina divided from the middle to the base, which, where it ter-

minates, is divided by a fineincision. The form of the thorax is trapezoidal, with acute

hinder angles.

The specimen figured is from La Tinta, the department of Vera Paz.

26. Calopteron difficile.

Nigrum, prothorace (vitta mediana excepta) elytrorumque dimidio basali flavis ; elytris lineis quatuor elevatis,

tertia minus distincta, areolis irregularibus, lineis transversis haud rugosis; antennis serratis. oQ.

Long. 5-12 millim.

Mas multo minor, segmento penultimo exciso.

Femina major.

Hab. Guatemata, Teleman (Champion); Nicaragua, Chontales (Janson).

Closely allied to C. matutinum; it, however, differs, not only in colour (being

rather yellow than rusty red) and in not having the basal part of the suture black,

but the transverse divisions of the interstices are not so numerous nor so strongly

raised. The difference in size of the sexes is sometimes very remarkable—a male of

the smallest size being found still attached to a female of the largest, after their

transmission to this country.

CALOPTERON.—CANIA. 17

Section B ii. Thorax with the carina divided at the base; elytra moderately widened,

with three raised lines.

27. Calopteron tricostatum. (Tab. II. fig. 6, 2.)

Nigrum, prothoracis lateribus elytrorumque dimidio basali ferrugineis ; elytris lineis tribus elevatis, intervallis.

irregulariter areolatis. Long. 6-10 millim. ¢ Q.

Mas minor, segmento penultimo exciso.

Femina major, segmento apicali medio minute diviso.

Hab. Mexico, Toxpam (Sallé) ; GuaTeMaLa, Pancina (Champion).

The disparity in size between the sexes is not so great asin C. matutinum or C. difficile.

The thorax is more evenly rounded in front; and the hind angles are rather more

acutely produced. ‘The carina is divided and open at the base, as in the preceding

species.

This species also resembles C. xanthomelas, Kirsch. The divided carina of the

thorax, and the antenne not pectinate in either sex, will enable them to be easily

separated.

C/AENIA.

Cenia, Newman, Ent. Mag. v. p. 381 (1838).

The species given in the Munich Catalogue as belonging to this genus, from Mada-

gascar, Ceylon, and Mamuku, do not agree in typical characters; and I do not consider

that the genus is found out of the North-American Region. It is best characterized by

the expanded oval elytra with three strongly raised and six subsidiary nervures, the

deeply indented sides of the thorax, and its complete simple carina. ‘There are known

at present four species in Central America.

1. Cenia cardinalis. (Tab. I. fig. 24,9.)

Nigra, prothorace elytrisque sanguineis, his lineis tribus sat fortiter elevatis, ad apicem conjunctis, et sex alteris

haud distinctis ; illo carinato, disco infuscato, lateribus fortiter bisinuatis ; antennis flabellato-pectinatis.

Long. 15 millim,

Hab. Costa Rica, Volcan de Irazu (Rogers).

The whole of the body, with the antenne, palpi, and legs, is black; the thorax is

orange-red, with the centre infuscate; the carina is complete, dark in the middle.

The elytra are vermilion, with the base of the suture very narrowly black. Three lines

are strongly marked—one subsutural, one discoidal, and the humeral one; these unite

near the apex; six finer lines are present, one in each interstice, excepting that three

intervene between the discoidal and the humeral nervure ; of these three the middle one

appears to represent the ordinary third raised line where four are found; it is rather

stronger than those on each side of it, and is much raised at the base. The transverse

lines are remarkably regular, and divide the area into nearly square meshes; they

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, December 1880. D

18 MALACODERMATA.

rarely “break joint; ” but.where they do so the reticulation is “ honeycomb ”-shaped.

This naturally takes place at the apex of the elytron. This description of the sculpture

will in a general way apply to all the other species of the genus known to me, and will

therefore only be referred to when any difference presents itself. The thorax is also of

the same structure in other species ; that is to say, the front and each side are prominent

in the middle, the hind angles acute and produced, the base bisinuate.

Only three specimens, all females, have been found.

2. Cenia scapularis. (Tab. I. fig. 23, 9.)

Cenia scapularis, Newman, Ent. Mag. v. p. 881’; C. O. Waterh. Ill. Typ. Col. B. M. i. p. 23,

t. vi. f. 67.

Hab. Nort America! ?.—Muextco, Oaxaca (Sallé); GuatTemaua, Capetillo, Purula

(Champion).

This agrees sufficiently with the figure of Newman’s type given by Mr. C. Waterhouse,

as well as with his description, except that the thorax has the sides broadly yellow. On

what grounds it is given as a synonym of C. dimidiata (Fabr.) by Lacordaire, Genera

Col. iv. p. 299, and in the Munich Catalogue, I am not aware. The Fabrician de-

scription would apply better to the next species. The central nervure ‘of the three

intermediate between the discoidal and humeral, is only slightly raised at the base.

The male of this species is smaller, and has the flabellate branches of the antenne

much finer at their base, and longer than those of the female.

3. Cenia sinuata.

Cenia sinuata, Kirsch, Mittheilungen aus dem kon. zool. Mus. Dresd.

Nigra, prothoracis lateribus elytrorumque dimidio basali flavis, elytris sutura anguste et circa scutellum nigris.

Long. 10-15 millim. ¢ 9.

Mas minor, antennis flabellato-pectinatis.

Femina antennis articulis latioribus flabellatis.

Hab. Mexico, Oaxaca, Cordova, Cosamaloapam (Sallé); Guatemata (Sallé), var.

sutura concolori; Nicaragua, Chontales (Janson).

4, Cxnia interrupta. (Tab. I. fig. 22.)

Nigra, prothoracis lateribus fasciaque elytrorum, ad suturam et in medio interrupta, flavis, antennis maris longe

flabellatis, angulis posticis thoracis acute productis. Long. 13 millim. ¢ 9.

Mas antennis longe flabellatis, ramis articulis triplo fere longioribus.

Femina antennarum articulis basi latioribus compressis, interne flabellatis.

Hab. Guatemata (Sallé, 2 ), San Gerdénimo (Champion, ¢ ).

Only two specimens of this very elegant insect have been seen by me. The thorax

has the sides and front very prominent, the disk strongly carinate; the hind angles are

more acutely produced than in either of the other species; the base has a small notch

where the carina terminates.

PLATEROS. 19

PLATEROS.

Plateros, Bourgeois, Comptes-rendus, Soc. Ent. Belg. 1879, p. 16; Waterh. Ill. Typical Col.

B. M.1. p. 25 (1879).

This genus, in the wide sense given to it by Mr. Waterhouse, is distributed over

nearly all the world. I have a species from Lake Nyassa, in Africa, which does not

differ essentially from the species from Asia attributed to it by him. It would be very

difficult to point out characters which would separate the Eastern species into a homo-

geneous group. The species here treated agree in having the antenne simply serrate

in both sexes, the thorax rounded in front, the base bisinuate, often notched in the

centre, with acute, somewhat depressed hind angles, the disk carinate, or a little raised

in front and channelled behind, and the elytra with about ten rows of closely packed

punctures, the alternate interstices being rather more costate than the others.

1. Plateros seminiger. (Tab. II. fig. 15, 9 .)

Niger, prothorace elytrisque a basi pone medium aurantiacis; his pube brevi vestitis, lineis quatuor elovatis,

intervallis seriebus duplicibus punctorum, sutura basi nigra; illo vitta mediana equaliter lata nigra, antice

indistincte carinato, postice canaliculato. Long. 13-19 millim. ¢ 9.

Hab. Mexico, Cordova, Santécomapan (Sal/é).

The thorax narrowed from the base, with acute hind angles, the central black vitta,

and suture black at the base, and the brick-red or orange elytra with rather more than

the apical third black, render this an easy species to recognize among its congeners.

The elytra of this and cognate species are described as having nine costate nervures ; but

they are more correctly crenate striate, with the alternate interstices raised.

This species is known in French collections by the name I have adopted; it is also

sometimes called “ mécheli, Petit ;’ but I cannot find that either name has ever been

published. I have only seen it from Mexico as yet.

2. Plateros bourgeoisi. (Tab. I. fig. 20 2, II. fig. 10 ¢.)

Ater, prothoracis lateribus, disci carinula antica et canaliculo postico, elytrorumque humeris late rubris ; his

lineis quatuor elevatis, intervallis biareolatis. Long. 8-12 millim. ¢ 9.

Hab. Britisn Honpuras, river Sarstoon (Blancaneaux) ; GuaTeMALA (Sallé), Capetillo,

Dueias (Champion).

The body and appendages are deep black, except that in some specimens the anterior

and middle coxe, trochanters, and a small pectoral space is pale. The antenne are

broadly but not acutely serrate ; and there is no important difference between the sexes.

The abdominal structure is normal, the seventh segment in the male being deeply cut

out; the apical one in the female bears a very minute notch. ‘The disk of the thorax

is black and shining; but the carina and the channel are both yellow, the former well

marked; and the disk is slightly rugose on each side of it.

D 2

20 MALACODERMATA.

3. Plateros letourneuri. (Tab. II. fig. 17.)

Niger, prothorace elytrisque ochraceis, his sutura basi infuscata; illo disco utrinque nigro-vittato, angulis

posticis acutis, parum productis. Long. 10-11 millim. ¢ 2.

Hab. Mexico, Cordova (Sallé); British Honpuras, river Sarstoon (Blancaneaus) ;

GUATEMALA (Sallé).

In one example the crown of the head and the mouth are ochraceous. The sides of

the thorax contract slightly from the base; the central yellow line is characteristic ; and

the alternate interstices are more strongly raised than in the species which are nearly

allied.

A Guatemala specimen is shown in the Plate.

4, Plateros evanidus.

Niger, prothorace elytrisque ochraceis, his sutura basi, illo vitta mediana nigris, lateribus subsinuatis, angulis

posticis acutis, productis. Long. 10-11 millim.

Hab. Mexico, Oaxaca (Sallé); Guatemaa, Chacoj, Pancina, Teleman (Champion) ;

NicaraGua, Chontales (Belt) ; Costa Rica (Van Patten).

Closely allied to P. letourneuri, and only differing in having the hind angles of the

thorax more turned outwards, the elytra evenly striate with the four alternate inter-

stices scarcely more raised, and the carina of the thorax black. The Costa-Rica

specimens are darker ; and the angles of the thorax in them are less prominent.

5. Plateros apicalis.

Niger, prothoracis lateribus, elytrorum dimidio basali, ore, antennarum articulo apicali pedibusque basi interne

flavis; elytris interdum linea brevi basali prope suturam nigra. Long. 63-10 millim.

Hab. Nicaraeua, Chontales (Lelé).

Only two specimens of this species have been sent at present; and they seem very

distinct from any other. The apical joint of the antenne is yellow; the yellow sides

of the thorax join in front, leaving a black vitta occupying the disk, in one specimen

reaching neither base nor front margin. The sculpture of the thorax is irregular, that

of the elytra close, with slightly raised alternate coste.

6. Plateros luridus.

Nigro-fuscus, capite, antennarum articulo apicali, prothorace, elytris, scutello, pedibus basi et pectore ochraceis ;

elytris punctato-striatis, interstitiis alternis elevatis ; vitta thoracica, sutura ad basin vel linea subsuturali

interdum nigro-fuscis. Long. 9-10 millim.

Hab. Nicaracua, Chontales (Belt) ; Panama, var.?, Matachin (Thieme).

Extremely close to P. evanidus, and hardly to be distinguished, except by the

antenne, of which the joints are more acutely serrate, their internal apical angles

being produced, and the apical joint yellow. This, however, does not seem to be the

case with some specimens lent me by M. R. Oberthiir, which have acutely serrate

PLATEROS. 21

antennee and the elytra adorned with obscure dark dashes in the intervals of the

coste.

7. Plateros lateritius. (Tab. II. fig. 16, ¢ .)

Niger, prothoracis lateribus elytrisque sanguineis; illo basi profunde sulcato, antice carinato; his punctato-

striatis, interstitiis parum elevatis. Long. 9-113 millim. ¢ 2.

Hab. Mexico, Cordova, Oaxaca (Sailé).

Head, antenne, body, legs, scutellum, and the disk of the thorax black. The elytra

and sides of the thorax of a fine brick-red, the former sometimes with the base of the

suture black, the latter inclining to orange-red. The antenne are compressed, serrate,

the joints from the third to the tenth a little longer than wide, but decreasing in width

towards the apex ; the apical joint much narrower than the tenth. The rows of punc-

tures are ten in number, the alternate interstices a little more raised than the others.

According to Sallé’s collection this is Cenia sanguinipennis, Say. I think, however,

that will prove to be a different insect, the present species having nothing to do with

the genus Cenia.

8. Plateros bogotensis. (Tab. II. fig. 18.)

Eros bogotensis, Kirsch, Berl. Zeits. 1865, p. 67°.

Hab. Guatemara (Sallé).—Soutn America, Bogota 1.

A specimen of this species in M. Sallé’s collection, since acquired by Messrs. Godman

and Salvin, agrees with one which was thus named by M. Bourgeois in my own

cabinet.

9. Plateros thoracicus.

Nigro-piceus, capite, prothorace (disco excepto), elytrorum vitta humerali cum fascia ad suturam et marginem

latiore conjuncta, pedibusque basi flavescentibus ; thorace subquadrato, antice prominulo ; elytris parallelis,

punctato-striatis. Long. 8-9 millim.

Hab. Nicaragua, Chontales (Belt, Janson); Panama, Matachin (Thieme).—Sovtu

America, Colombia.

Very near to P. bogotensis, but apparently distinct, being smaller, with the yellow

portions of the elytra frequently more extended, occupying almost the whole base.

There is usually a large basal blotch common to both elytra, of a trapezoid form, and

with about a third of its apex smoky black. The thorax exhibits an angle on each

side in front; the front itself is prominent, but truncate; the carina in front is

minutely divided or channelled.

10. Plateros isthmianus.

Nigro-fumosus, prothorace elytrorumque humeris, pedibus basi et pectore plus minusve flavescentibus ; thorace

subquadrato, fronte emarginata basi canaliculata; elytris substriatis, coriaceis, lineis quatuor elevatioribus.

Long. 74-83 millim. ¢ Q.

22 MALACODERMATA.

Hab. Guareaana, Zapote (Champion) ; Panama, Matachin (Thieme).

Not only differs from P. thoracicus by the absence of the fascia, but is also slightly

more parallel; the front of the thorax is often emarginate, sometimes with a small

notch ; the carina is very obsolete, scarcely ever to be traced, and, when present, not

divided.

There is a fine series in M. R. Oberthiir’s collection. I have only seen one from

Guatemala.

11. Plateros terminalis.

Nigro-fumosus, subparallelus, opacus, prothoracis lateribus, striga humerali, et antennarum apice flavis,

elytris punctato-striatis. Long. 63 millim.

Hab. Guatemaua, San Juan, Vera Paz (Champion) ; NIcaRracua, Chontales (Belt).

Only three specimens have come under my notice of this very distinct insect. ‘The

head, antennz, legs, and body are black, with the exception of from one to three joints

at the apex of the antenne (the number seems variable): the antenne are serrate, the

width of each joint increasing towards the middle. The thorax has the disk black from

base to front, the carina visible, the basal channel short; the front is rounded, the

sides are sinuate, the base notched. The elytra are evenly and strongly crenate-striate.

12. Plateros parallelus. (Tab. IT. fig. 19.)

Niger, nitidus, elongatus, parallelus, prothoracis marginibus lateralibus et frontali rufo-testaceis, basi in medio

elevata et excisa; elytris coriaceis, substriatis. Long. 6-9 millim. ¢ 2.

Hab. Mexico, Cordova, Oaxaca (Sallé); British Honpuras, Rio Hondo (blan-

caneauz); GUATEMALA, San Gerdnimo, Zapote (Champion) ; Nicaracua, Chontales

(Janson).

The elongate parallel form of this insect will cause it to be recognized. The antenne

have the second small joint yellow, and the basal one tinged with yellow and pitchy.

The elevated and notched centre of the basal margin is a character which obtains in

other species of the genus, as P. isthmianus, but in a less degree. The Zapote examples

are usually smaller and have yellow shoulder-stripes ; but they agree too nearly with

those from San Gerdénimo for me to attempt their separation. It 1s, moreover, one of

the latter variety that M. Bourgeois has returned to me with the name here adopted.

13. Plateros striatus.

Niger, prothoracis lateribus rufis, elytris crenato-striatis. Long. 53-6 millim.

Hab. Mexico, Juquila (Sallé); Guatemaua, Capetillo, Duenhas (Champion).

Var, Elytris linea minuta humerali rufa. (P. marginellus, Macleay.)

Hab. GUATEMALA, Zapote (Champion) ; Panama, Matachin (Zhieme).

PLATEROS. 23

Antenne serrate, the joints narrowing towards the apex. Head black, with rather

prominent eyes. Thorax round in front; hind angles acute, produced ; base divided in

the centre, but not much elevated, nor truncate as in P. parallelus. Elytra gradually

widening towards their apex, strongly crenate-striate, with a greyish look; the striz

with distinct punctures.

Among many Lycide obtained by me from the late Mr. Norris’s collection were two

or three of the variety with a humeral stripe of this species ; these were named for me by

M. Bourgeois “ P. marginellus, Macleay.” It would be impossible from the description

alone to identify it with the Fabrician Lycus marginellus, which, indeed, would apply

equally to other small species of other genera. There are at least four species of

Calopteron so closely resembling this as to require careful study for their separation.

14. Plateros flavicollis.

Niger, prothorace, femoribus intermediis et posticis basi, scutello, humeris et sutura juxta scutellum flave-

scentibus. Long. 5-53 millim.

Hab. GUATEMALA, Zapote (Champion).

It is with some hesitation I give this specific rank ; but even if it be only a variety

of P. striatus, it is necessary to notice it.

15. Plateros nicaraguensis.

Niger, oblongus, parallelus; prothorace transverso, antice angustato, lateribus sinuatis, angulis posticis acutis,

productis, ochraceo, vitta lata in medio nigra; elytris ochraceis, apice nigris, interstitiis alternis eleva-

tioribus ; antennarum articulo primo et ore rufo-piceis. Long. 10 millim. 9.

Hab. Nicaracua, Chontales (Belt).

The form of this insect is not that of any of the species hitherto described. The

antennee are compressed and narrow towards the apex; they are scarcely serrate. The

prothorax is rather trapezoidal, with the base sinuate, much wider than the front, not

notched in the middle; the front and the sides form an obtuse angle, the former being

a little produced over the head; the basal channel is well defined, but the carina

hardly traceable. The elytra are rather wide and flattish, with the usual ten series of

punctures, which are, however, scarcely visible, owing to the fine yellow pubescence

with which they are covered. The apical segment of the abdomen appears not to be

divided in the middle.

Only a single specimen was sent by Mr. Belt.

16. Plateros ochraceus.

Niger, prothorace elytrisque ochraceis, his striga subsuturali juxta scutellum nigra, illo transverso, antice

angustato, basi canaliculato, utrinque subtuberculato, disco plus minusve nigro, canaliculo tamen flayo,

angulis posticis acutis productis. Long. 7-9 millim.

Hab. Guatemaua, Cubilguitz (Champion).

24 . MALACODERMATA.

At first sight this is very similar to P. letowrnewri. The following points of dif-

ference indicate, I believe, specific rank:—The thorax is shorter and has a less even

surface ; it is not so evenly rounded in front; the head is reddish between the eyes;

and the antenne are longer; the scutellum is red, and the suture itself not black at

the base; but there is a short black streak on each side of it from the scutellum; the

elytra are more convex, and their alternate interstices not raised, excepting the humeral

and discoidal ones at the base. In some specimens the thorax exhibits transverse

oblique rugosities, one of which forms a sulcus united with the channel of the disk

near the base.

17. Plateros rubricatus.

Ochraceo-rufus, antennis, palpis, abdomine pedibusque (basi excepta) nigris, elytris interstitiis alternis eleva-

tioribus. Long. 10 millim.

Hab. Guatemata, Chacoj, La Tinta, Pancina (Champion).

This species is also a very close ally of P. letowrneuri, and is, indeed, still nearer to it

in form than is P. ochraceus. It is, however, clearly a distinct species. The head,

thorax, and scutellum are entirely of the brick-red colour of the thorax ; and the whole

of the sterna, with the coxe, trochanters, base of the femora, and even the first

segment of the abdomen are also red. The thorax, moreover, is not so even as in

letourneuri; it exhibits six depressions in addition to the basal channel—two on each

side, and one on each side of the channel, somewhat suggesting an approach to a

true Lros.

18. Plateros mexicanus.

Nigro-fumosus, prothoracis margine laterali et frontali elytrorumque humeris ochraceo-rubris vel roseis ;

elytris punctato-striatis, interstitiis alternis elevatioribus. Long. 63-8 millim. ¢ 9.

Hab. Mexico, Cordova (Sallé, Hoge).

This species belongs to the first division of the genus, in which the elytra are

moderately widened behind. ‘The only species yet described which it resembles

is P. bourgeoisi.. It is scarcely more than half the size of that species; the elytra are

not so black, and the red portions are more nearly pink; the disk is black, but never

reaching the front margin, nor is there any central red line. The thoracic channel is

open behind, and the base elevated, but not strongly in the middle. The antenne are

more pubescent than in P. bourgeoisi; and the head is sometimes reddish above the

mandibles, which are red.

19. Plateros roseicollis.

Niger, prothorace elytrorumque humeris tenuiter roseis, his interstitiis alternis modice elevatis. Long. 8-10

millim. ¢.

Hab. Mexico, Jacale (Sallé).

PLATEROS.—CALLEROS. 25

Fasily distinguished from P. mexicanus, which it otherwise rather closely resembles,

by its quite red thorax. The red shoulder-stripe extends a little way down the humeral

costa ; but the margins of the elytra are black to close to the base ; the alternate interstices

are more sharply raised, in which respect this species rather resembles P. bourgeoisi.

From that species the much shorter thorax, as well as its rosy-red colour, separates it.

There are four female specimens in M. Sallé’s collection.

20. Plateros patiens.

Niger, prothorace elytrorumque dimidio basali testaceis, his interstitiis alternis regulariter elevatioribus, illo

margine basali paulo elevato et exciso; antennis serratis ; femoribus basi flavis. Long. 9 millim.

Hab. GuatEMALa, Zapote (Champion).

A species very much resembling P. apicalis, from which it may be distinguished by

the apical joint of the antenne being black, the thorax quite unicolorous, yellow, with

the base elevated in the middle, so as to form a short double carina, on each side of the

central channel. The scutellum is yellow; the yellow of the elytra continues along the

margin further than at the suture. Only a single specimen appears to me to belong to

this species.

21. Plateros stramineus.

Pallide testaceus, corpore, antennis pedibusque nigris, his basi testaceis, thoracis disco interdum fusco, breviter

canaliculato, basi sinuata, integra, angulis posticis acutis, productis. Long. 54-6 millim. g 9.

Hab. GuaTemMaa, San Gerénimo, San Juan (Champion).

One of the smallest Platerotes, about the size of P. striatus, but readily distinguished

by its yellow colour above. The elytra are very evenly striate, without elevated lines.

The disk of the thorax is either marked with pitchy or is of the same colour as the rest

of the upper surface. The central channel is wide, but vanishes in front and behind.

Three specimens, collected by Mr. Champion.

CALLEROS,

Genus Plateroti affine, antennis gracilioribus, prothorace plerumque angustiore quam elytra, sulco basin vix

attingente, et angulis posticis minus acute productis, mox distinguendum.

Caput haud rostratum, oculis sat magnis, antennis subfiliformibus, vix serratis, parum compressis. Prothorax

elytris plerumque basi angustior, disco inzequali ad basin canaliculato vel fossulato, angulis posticis subrectis

vel muticis, margine basali integro. Scutellum apice fissum. Elytra postice paulo ampliata vel parallela,

regulariter substriata, intervallis subtiliter rugosis vel crenulatis, pubescentia, interstitiis alternis vix vel

haud elevatioribus. Abdominis segmentum penultimum maris ventrale emarginatum, dorsale oblique

truncatum ; feminz ventrale conicum, apice fissum.

A genus proposed to receive some small Lycide which are allied to Plateros, but

differ considerably both in general appearance and, especially, in the long thin antenne.

They are species of moderate size, with brightly coloured red thoraces and elytra,

sometimes purplish or cochineal. I have taken the first species described below

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, February 1881. iE

26 | MALACODERMATA.

(C. puniceus) as my type; the genus, however, will include Eros phenicurus of Kirsch |

(Berl. Zeit. 1865, p. 68), a species which is found in Colombia. |

1. Calleros puniceus.

Niger, prothorace elytrisque lete rufis (puniceis), his retrorsum modice expansis, striatis, illo disco infuseato,

leviter canaliculato et foveolato, antice obsolete punctato; scutello nigro; antennis subfiliformibus,

dimidium corporis superantibus. Long. 8-9 millim. g 2.

Hab. GuatemMata, Tactic (Champion).

The head, body, antennz, and legs are black; the mouth a little pale. The elytra

are of a bright velvety-looking crimson-red ; the thorax a little more of a brick-red,

with its disk blackish in parts. The elytra are very evenly striate. The sexes do not

exhibit any difference in form or length of the antenne, or in the structure of their

joints. This is perhaps the most vividly coloured of the family which I have seen

from Central America.

2. Calleros rufobrunneus.

Niger, prothorace rufo, angulis posticis subrotundatis; elytris rufo-brunneis, velutinis, intervallis alternis

elevatioribus, preesertim prope humeros, retrorsum modice expansis. Long. 7-9 millim. ¢ @.

Hab. Guatemata, Sinanja valley, Cubilguitz (Champion).

Very closely allied to C. puniceus; it is, however, differently coloured, being of a rich

reddish brown, with brighter pubescence. The antenne of the male are as long‘as the

body, and have the third joint much longer than in the female, in which the same joint

is obconic, not much longer than the second, and the whole antenna half the length of the

body. The angles of the thorax of the male are acute and a little produced ; those of the

female are blunt and round. The scutellum is of the brownish-red colour of the elytra.

8. Calleros militaris.

Niger, elytris sanguineis velutinis, obsoletius striatis; scutello nigro; prothoracis disco antice indistincte

carinato, postice leviter canaliculato ac foveolato, angulis posticis subrectis; antennis subcompressis, vix

serratis. Long. 73-9 millim.

Hab. Guatema.a, Sinanja valley (Champion).

Only two specimens of this have come under my notice. It is very easily recognized

by the black thorax and rich red elytra; the former has the hind angles in one

specimen very narrowly edged with yellowish. The elytra are moderately expanded

towards their apex.

4. Calleros sinanje.

Niger, parallelus, prothorace sanguineo, nitido, postice foveolato, scutello nigro; elytris basi brunneis, apicem

versus infuscatis, distincte striatis, interstitiis alternis leviter elevatioribus ; antennarum articulo ultimo

brunneo. Long. 63—7 millim. 9°.

Hab. GvuaTEMALA, Sinanja valley (Champion).

CALLEROS.—CALODADON. 27

This so far differs from the three preceding species as to give rise to reasonable

doubts whether it should really be associated with them. It agrees, however, in

having very slightly compressed hardly serrate antenne. The prothorax has acute

hind angles, they are a little produced backwards; it is as long as wide, round in front,

with parallel sides. In one specimen the scutellum is brown.

CALOLYCUS.

Genus Plateroti affine, thorace latiore lateribus explanatis reflexis, elytrisque magis ampliatis, ovalibus, differt.

Caput haud rostratum, antennis utroque sexu subfiliformibus, compressis, apicem versus attenuatis.

Thorax maris transversim subquadratus; femine latior, lunaris, angulis posticis productis acutis; antice

carinatus, postice canaliculatus. Elytra areolarum seriebus novem, interstitiis quarto et octavo costatis.

The form of the prothorax and of the elytra are the principal characters which separate

this genus from Plateros,—the former being expanded, especially in the female, at the

sides, so as to remind one of Lycostomus; the latter being oval, as in Cenia.

I have not at present seen any other species than the one now described, which I

should associate with it.

1. Calolycus calanticatus. Tab. IV. fig. 3.)

Niger, opacus; prothorace roseo, medio nigro-vittato, transverso, angulis posticis acutis, disco antice leviter

a > p ? & b] b] oO 2

carinato, postice canaliculato basi integro; elytris ovatis ampliatis, humeris costatis, striga minuta rufa

ornatis. Long. 8-10 millim. ¢ 9.

Hab. Mexico, Cordova (Sallé).

The head, antennee, legs, and body are entirely black. The thorax wide, with the

hind angles produced backwards ; the front rounded, not prominent, the base sinuate

and not notched in the centre, but with a reflexed margin a little more raised there;

the central vitta is widest at the base, not very distinct in one specimen (male), in

another (female) distinct, and in front only as wide as the carina. The elytra have ten

rows of squarish areole, not very deep; the humeral callus strongly raised and con-

tinued as a costate interstice to near the apex. The portion of the elytron external to

this is widened much as in Cenia, and contains two rows of cells; the margin itself is

thickened a little.

This is a very elegant insect, the black elytra contrasting strongly with the red

thorax. It cannot be well placed in the genus Plateros, while it differs from Eros,

which has the thorax divided into seven areole, in having its disk sculptured as in the

former of those genera.

CALODADON.

Caput haud rostratum; oculi magni prominentes; antenne corpore breviores, longe flabellata (fcemine

serrate). Palpi maxillares articulo ultimo subsecuriformi, obliquiter truncato. Pronotum pileiforme, disco

antice carinato, in medio usque ad basin, carina duplici inter se suleum angustum formante, basi medio

prominente, haud exciso. -Elytra seriebus punctorum decem, interstitiis alternis elevatioribus. Pedes

longi, femoribus et tibiis compressis et sulcatis. Abdominis segmentum apicale ventrali, maris acuminatum,

penultimum rotundato-emarginatum ; foeminee ventrali apicale rotundatum, haud fissum aut excisum.

Et 2

28 - MALACODERMATA.

A new genus is necessary for the reception of four species of Lycide from Central

America. They are allied to Plateros by the sculpture of the elytra, and to the

Caloptera of Section A iii. by their beautifully flabellate antenne. But the sculpture

of the thorax, consisting of a neat central groove not reaching the hind margin, with

carinate edges, a frontal carina, and its head with large round prominent eyes remove

it from either. The species are of moderate size only. Calopteron letum, Kirsch (Berl.

ent. Zeit. 1865, p. 43), is referable to this genus. M. Bourgeois has referred it to

Emplectus, Er. (Wiegm. Arch. 1847, p. 82); but Mr. C. Waterhouse says the type of

Erichson’s genus has simple antenne. Cladocerus of Kirsch has biflabellate antenne.

1. Calodadon testaceum. (Tab. II. fig. 20, ¢.)

Testaceum, antennis, palpis basi excepta, femoribus apice, tibiis, tarsis, abdomineque nigris; prothorace

elongato, basi sinuata angulis posticis acutis, antice rotundato, lateribus a basi angustatis ; disco antice

carinato, carina postice divisa. Long. 8-9 milim. ¢ @.

Mas antennarum articulis 3°-10° longe fiabellatis.

Femina antennis acute serratis.

Hab. Guaremata, San Gerénimo, Zapote (Champion, 2? ); Nicaracua, Chontales (Belé,

Janson, & ).

The figure represents one of the largest male specimens from Chontales.

The head is yellow ; but the eyes are so large as to occupy a large portion of it. The

antenne are entirely fuscous-black. The thorax narrows considerably from the base to

the front, which shows a slight angle where the rounded part meets the sides. The

elytra have four neatly raised lines, the intervals of which have double rows of

small areolets or punctures; these are square, but are partly hidden by the fine

squamosity which covers them.

The Guatemala specimens are rather doubtfully the female of the same species.

The thorax is shorter and smaller, and the abdomen yellow.

2. Calodadon oculatum.

Nigrum, prothorace (vitta mediana excepta) elytrisque ochraceis, his apicali triente nigro, sutura etiam basi

nonunquam nigra. Long. 9 millim. ¢ 9.

Mas oculis magnis, antennis longe flabellatis.

Femina oculis mediocribus, antennis acute serratis.

Hab. Guatemaua, Teleman, Chacoj (Champion) ; Nicaraaua, Chontales (Belt).

In form and sculpture much resembling C. testaceum, this species is amply distin-

guished by its colour. The antenne of the male have their joints above the second

(which in this genus is very short) much longer than wide, as in C. testaceum; but the

corresponding joints of the female are widely triangular, being, to the acute internal

angle, wider than long.

CALODADON.—LAMPROCERA. 29

8. Calodadon fusculum.

Piceum, prothoracis margine antico et laterali femoribusque basi pallide testaceis, elytris fuscis basi dilutioribus,

thoracis disco canaliculato et foveola postice impressa. Long. 8 millim. ¢.

Mas oculis magnis, antennis longe flabellatis.

Hab. Nicaraeua, Chontales (Belt).

The thorax of this species is shorter and more nearly semicircular than that of

C. testaceum ; and the disk is not carinate in front; it has a rather obsolete channel,

terminating in a fovea near the base. The eyes, antenne, and elytra, however, so

completely agree with those of the males of the two preceding, that I feel no hesitation

in associating it with them. The description is from a single male specimen sent by

the late Mr. Belt.

4, Calodadon pectinicornis.

Nigrum, prothorace (elytrorum basi latitudine quali) vitta mediana excepta ferrugineo, elytris ferrugincis,

apice late nigris, versus apicem paulo latioribus, lineis duabus elevatis; thoracis disco antice carinato,

medio elevato ac canaliculato, basi in medio elevata haud excisa. Long. 10-11 millim. g 2.

Mas antennis longe flabellatis.

Femina antennis compressis, acute serratis.

Hab. Nicaragua, Chontales (Belt).

This species almost exactly resembles Calopteron pectinatum in size, form, and colour,

but is at once separated by the channelled thorax, and the number of series of punctures

of the elytra. The thorax is wider but of similar sculpture to that of C. testaceum.

The eyes of the males are only of ordinary bulk; and the elytra are flatter than in my

typical species. Iam not able, however, to point out any other genus into which it

could be so well introduced.

Fam. LAMPYRIDA.

Subfam. LUCIDOTIDES.

This family comprises the Glow-worms of the temperate, and the greater part of the

Fire-flies of tropical latitudes. It is in Central and South America that these beetles

attain their highest development, both in size and number of species. The subfamily

includes the genera with plumose or dentate antenne ; and these are, with one exception

(viz. the genus Vesta, which is found in India and Java), peculiar to Tropical America,

a few species only of Lucidota extending into Temperate America and Eastern Asia.

LAMPROCERA.

Lamprocera, Castelnau, Ann. Soc. Ent. Fr. ii. p. 129 (1833).

This fine genus appears almost confined to the tropical parts of the southern continent

30 MALACODERMATA.

of America. The males have wide lamelle springing from each side of the joints of the

antenne at their apices: in the typical species (L. latreillec) these are equal; but in

other species they are much shorter on the side which is outermost when the antenna

is extended. The males only are luminous.

One species has been found north of the isthmus.

1. Lamprocera picta. (Tab. III. fig. 1, ¢.)

Lamprocera picta, Gorh. Trans. Ent. Soc. 1880, p. 5°.

Hab. Nicaracva, Chontales (Belt); Guatemata, Teleman (Champion).

The figure is that of a male from Nicaragua.

HYAS.

Hyas, Castelnau, Ann. Soc. Ent. Fr. i. p. 1384 (1838).

The species composing this genus retain the wide shield-like shape of Lamprocera ;

but the lamellze are only developed on one side of the antenne, and the species are

smaller. Important distinctions exist in the structure of the abdomen, which are

noticed in the Transactions of the Entomological Society for 1880, part 1.

The species seem evenly distributed in Tropical America. Four species are given in

the Munich Catalogue, which probably are only varieties of two; but there are some

undescribed in collections. Four species have been recently sent from our district.

1. Hyas rhomboidea. (Tab. ITI. fig. 2, ¢.)

Hyas rhomboidea, Gorh. Trans. Ent. Soc. 1880, p. 6.

Hab. Nicaracua, Chontales (Belt).

The single specimen of this species at present received is a male; it is more parallel

in form than the other known species.

2. Hyas angularis.

Hyas angularis, Gorh. Trans. Ent. Soc. 1880, p. 7, t. i. f. 19%.

Hab. Mexico, Cordova, Playa Vicente (Sallé) ; GuaremaLa, San Gerdénimo, Calderas

(Champion). 3 @.

Some of the specimens differ from the type in not having black angles to the thorax ;

the other specimens quite accord with it, the antenne, however, are entirely black,

acutely serrate in the g. In the male the pygidium and apical segment are pale, the

latter deeply excised and forming an opening. The female has the apical ventral plate

pale alone, and has the thorax longer and with the sides therefore less oblique.

8. Hyas lugubris.

Ovalis, depressa, aterrima, opaca, scutello thoracisque disco nitidis, hoc carinato, utrinque plagis duabus fulvis

marginem anticum vix attingentibus. Long. 9-11 millim. Q.

HYAS.—PHANOLIS. 31

Hab. Guatemata, Sabo, Senahu (Champion).

Differs from H. angularis chiefly by its much smaller size, narrower, more elongate

form, and the greater extent of black upon the thorax. The antenne are acutely

serrate. The apical segment in one specimen has a small ochreous spot on each side,

which, I conclude, is the luminous part. The pygidium is fuscous, nearly black.

4. Hyas semifusca.

Late ovalis, depressa, fusca, subopaca ; prothorace, pectore, scutello, pedibus anticis et intermediis (tibiis tarsisque

exceptis), coxis posterioribus, elytris ad basin indeterminate abdominisque apice fulvis ; thoracis disco

carinato, margine antico reflexo; antennis acute serratis, articulis duobus basi flavis. Long.12 millim. g.

Hab. Guatemaa, Zapote (Champion).

A single specimen of this distinct species is all that I have seen; and I think it is a

male. The antenne are rather more than half as long as the whole insect, if the

prothorax is included ; they are simply serrate, without any tendency to pectination ;

and this is so in the males of other Central-American species of Hyas.

CLADODES.

Cladodes, Blanchard in Gay’s Hist. Chili, Zool. iv. p. 444 (1849).

This genus was only known from South America. Mr. E. Janson, however, has

found one species in Nicaragua. It appears as if the females were unknown ; all the

specimens I have examined have the normal structure of males of this family. They

are rare in collections ; and it is probable that the females are not only rarer, but more

sluggish, than the males.

1. Cladodes plumosa. (Tab. III. fig. 21.)

Cladodes plumosa, Gorham, Trans. Ent. Soc. 1880, p. 9.

Hab. Nicaraava, Chontales (Janson, Belt).

PHANOLIS.

Phenolis, Gorham, Trans. Ent. Soc. 1880, p. 10.

This genus was designed to receive three species from Central Ameria which differ

from Cladodes in having the antenne with lamelle on each side, nearly equal in length.

All the specimens I have seen appear to be males, the specimen of P. ochraceus referred

to in my description as possibly a female being very doubtfully assignable to that sex.

1. Phenolis laciniatus. (Tab. III. fig. 22, ¢.)

Phenolis laciniatus, Gorh. Trans. Ent. Soc. 1880, p. 10.

Hab. Nicaragua, Chontales (Belt); Costa Rica (Rogers).

32 MALACODERMATA.

2. Phenolis ustulatus.

Phenolis ustulatus (Chevr.), Gorh. Trans. Ent. Soc. 1880, p. 11°.

Hab. Mexico1, Cordova (Sallé); Guatemata, Zapote1, Purula, Senahu, Cubilguitz

(Champion) ; Costa Rica, Caché (Rogers).

8. Pheenolis ochraceus.

Phenolis ochraceus, Gorh. loc. cit. p. 11".

Hab. Guaremaa, Vera Paz (Champion) ; Nicaracua, Chontales (Belt!). 3 2

4, Phenolis nigricollis.

Niger, opacus, elytris basi ultra medium pallide testaceis, pube brevi dense vestitis. Long.15 millim. $?

Hab. Mexico, Tepansacualco, Oaxaca (Sallé).

This highly interesting species scarcely differs in form from P. ustulatus. ‘The thorax

is transverse, constricted at the base, a little less produced in front. The expanded

sides form a nearly straight channel with the disk, where they commence to be reflexed.

The scutellum is black and opaque. ‘The elytra are of a very pale yellow for rather

more than half their length at the base; and this colour extends a little way down the

suture. Three or four nervures are just visible, but only indistinctly so. The apical

ventral segment is cleft and bilobed, the pygidial plate broadly bisinuate.

A single specimen only has come under my notice.

JETHRA.

4Ethra, Castelnau, Ann. Soc. Ent. Fr. i. p. 133 (18338).

Neither the limits of distribution nor approximate number of species in this section

are yet well ascertained. The typical species are Brazilian, and are distinguished by

the great length of the lamelle of the antenne, which sometimes equal half their whole

length. In the Central-American species, on the contrary, the antenne are scarcely

pectinate; yet the general construction is the same; and they more nearly resemble

the species of the Eastern genus Vesta. But one sex (6?) is known to me.

1. Aithra despecta. (Tab. III. fig. 3.)

Aithra despecta, Gorh. Trans. Ent. Soc. 1880, p. 121.

Hab. Nicaracva, Chontales (Belt!) ; Costa Rica, Caché (Rogers).—Cotomsta |,

The Central-American specimens agree in not having the disk of the thorax infuscate.

2. Aithra concolor.

Aithra concolor, Gorh. loc. cit.

Hab. Costa Rica, Volcan de Irazu (Rogers).

DRILOLAMPADTUS. 33

DRILOLAMPADIUS, g. n.

Aithre affinis, antennis autem serie duplici ramorum pectinatis sat distinctus. Caput prothorace valde receptum.

Oculi maris sat magni. Antenne 11-articulate, articulo primo ad apicem robusto, secundo perbrevi,

tertio ad decimum sequentibus subsqualibus ; basi ramo vel filamento pilifero duplici munita. Prothorax

semicircularis vel antice paululum angustatus, plerumque canaliculatus. Elytra subcostata. Abdomen

haud lobatum, maris segmentibus octo, septimo emarginato.

There are not many genera of Lampyride with bipectinate or biflabellate antenne ;

and it is necessary to found a new genus for the reception of a few species which differ

from all other species known to me, in having the antenne with eleven joints, and the

third to the tenth joints with branches equal in length and filamentary. The general

form is that of the small species of Zthra; the species very closely resemble Lycide from

the same district. Three species are known to me—two from Central America, one

from Colombia, at present undescribed. |

1. Drilolampadius stolatus. (Tab. III. fig. 20.)

Niger, prothoracis lateribus late, elytrorum margine humerali tenuiter flavis; elytris sutura costisque duabus

paulo elevatis, ad apicem evanescentibus. Long. 6-7 millim. ¢.

Var. Elytris plaga latiore humerali et sutura basin versus flavis.

Hab. British Honpuras, Belize (Blancaneaux); GuatemaLa, Zapote, Chiacam

(Champion). Var. Guatemaa, Senahu, San Juan (Champion); Nicaracva, Chontales

(Belt).

The specimen figured is from Zapote.

Prothorax transversely lunate, narrowed from the acute hind angles to the front, with

large irregular punctures, the disk tumid, uneven, deeply channelled in the middle.

Elytra subopaque, coarsely, confluently punctate, with two distinct, and externally a

third abbreviated costa. Those specimens in which the bases of the elytra are more

yellow appear more distinctly costate ; but I do not see sufficient ground for separating

them. ‘The fifth and sixth segments of the abdomen beneath show a small diaphanous

spot.

Obs. The figure in our Plate shows nine branches on each side of the antenna. Iam

satisfied that there really exist but eight, the eleventh or terminal joint being simple.

2. Drilolampadius scutellaris.

Niger, prothorace (disco excepto) elytrisque (plaga brevi subscutellari nigra) ferrugineis. Long. 7-84 millim.

Hab. Guatemata, Cubilguitz (Champion); Costa Rica, Caché (Rogers).

Rather larger than D. stolatus, and with the thorax not so decidedly narrowed in

front, but transversely lunate. The disk is black; but this colour does not extend to the

front; the suture and two coste are moderately raised ; the scutellum is black, except

at its apex; and the’elytra have a short black streak at the base. ‘The body beneath

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, February 1881. F

34 MALACODERMATA.

and legs are black; only the fifth segment has a small white spot; and even this is

apparent in one alone of the three specimens which have been sent.

MEGALOPHTHALMUS.

Megalophthalmus, Gray, Griffith’s An. Kingd. Ins. 1. p. 871 (1882).

The separation of this genus from others with strongly pectinate antenne, small eyes,

and with a very small portion of the abdomen luminous, on the ground of the head

being scarcely covered by the very short pronotum, is unnatural. In the Central-

American species even this character is not maintained.

The females of this genus seem unknown, so that its position is still provisional; but

I think that it is best placed in this subfamily. .

Four species of Megalophthalmus have been described from South America. The

genus is also said, but incorrectly, to be found in Chili.

1. Megalophthalmus guatemale.

Megalophthalmus guatemale, Gorh. Trans. Ent. Soc. 1880, p. 98°.

Hab. Mexico, Cordova (Sallé); Guatema.a, Zapote (Champion }).

2. Megalophthalmus godmani.

Niger, prothorace, coxis et femoribus intermediis basi elytrisque ferrugineis, abdominis segmento quinto

(maris?) apice albo; elytris tricostatis ; antennis late pectinatis. Long. 8-9 millim. ¢?

Hab. GuateMaa, Cubilguitz (Champion).

Rather larger than IZ. guatemale, and with the antenne a little more widely pecti-

nate, but otherwise resembling it in form. The second and third coste are not so

evidently united at the apex; and the apical branch is only just visible.

LUCIDOTA.

Lucidota, Castelnau, Ann. Soc. Ent. Fr. i. p. 186 (1833).

This genus is not well defined at present; two types of species are included in it, as

will be seen by reference to my figures of the ventral apical segments of the males

(Trans. Ent. Soc. 1880, pl. i. figs. 8, 10,11). The first division consists of species,

often of large size, from Tropical South America. The second division are more mode-

rate in size; but both agree in having the antenne pectinate or serrate, often long, the

prothorax usually short and its disk channelled, and the abdomen not lobed.

LIucidota is distributed in America from Chili to the United States, and is even

represented in Japan. |

LUCIDOTA. 35

1. Lucidota silphoides.

Lucidota silphoides, Gorh. Trans. Ent. Soc. 1880, p. 18’.

Hab. British Honpuras, river Sarstoon (Blancaneausx !); Guatemata (Sallé).

The specimen described is a female, and, with the exception of one in Sallé’s collec-

tion (which has lost the abdomen and has the filamentary pectination abraded from

the antenne), is all I have yet seen of this species. The pectination is double, a pair

of short rami springing from each side of the base of the third to the tenth one.

It is therefore not improbable that this species may have to be referred to Drilo-

lampadius.

2. Lucidota bella. (Tab. III. fig. 4.)

Lucidota bella, Gorh. loc. cit."

Hab. Mexico, Cordova, Tuxtla, Teapa; GuatEMALa, Zapote!, San Gerénimo, Cubulco,

San Juan, Senahu (Champion) ; Honpuras (Sad/é); Nicaragua, Chontales (Belt).

The specimen figured is one from Zapote.

In M. Sallé’s collection this species is named “ ¢horacica, Oliv.” It is true that

Photinus thoracicus, Oliv. (Ent. ii. p. 27, t. 3. f. 29), is probably a Lucidota; I have,

however, no reason at present for thinking it to be identical with this species, and have

not as yet seen L. bella from South America.

3. Lucidota rubricollis.

Lucidota rubricollis, Gorh. tom. cit. p. 19°.

Hab. Mexico, Playa Vicente (Sallé); Guaremana, La Tinta (Champion); Nicaragua,

Chontales! (Janson, Belt).

4. Lucidota apicicornis.

Lucidota apicicornis, Gorh. tom. cit. p. 20.

Hab. Nicaragua, Chontales (Belt).

Species of Zucidota, Photinus, and Photuris are so frequentiy similarly coloured as to

suggest that mimicry has affected them, as well as that it explains the singular resem-

blances of many species of this tribe to those of Lycide, Telephoride, Cleride,

Longicornia, Hispide, &c., and even to insects of other orders, as Blattide. This

species is superficially very like Photuris lucidicollts, Gorh. The much longer compressed

antenne with white apical joints may serve for a ready distinction.

| 5. Lucidota osculatii.

Lucidota osculatii, Guérin, Wiener Verz. v. 1855, p. 580°; Gorh. Trans. Ent. Soc. 1880, p. 207.

Hab. Nicaracua, Chontales ? (Belt, Janson).—Sovutu America, Colombia}.

F 2

36 MALACODERMATA.

The type of coloration of this species (bone-yellow, with elytra and disk of the thorax

pitchy, with yellow margins) is very common throughout the Lampyride. There are

both Photini and Photwrides very closely like this species; and the study of the generic

characters is necessary to avoid their being confused. L. osculatit has long compressed

antenne with serrate joints.

6. Lucidota limbata.

Lucidota limbata, Gorh. Trans. Ent. Soc. 1880, p. 20.

Hab. Nicaracua, Chontales (Belt).

7. Lucidota apicalis. (Tab. III. fig. 5.)

Lucidota apicalis, Gorh. tom. cit. p. 19, t. i. f. 10°.

Hab. Costa Rica, Volcan de Irazu (Rogers). ¢.

This is like LZ. apicicornis in having white apical joints to the antenne; but the

elytra are wholly black, and the thorax whitish and immaculate. The lengthened

pygidial plate 1 may indicate a section of the genus of which it will form the type.

8. Lucidota diaphanura, (Tab. IV. fig. 22.)

Nigro-fumosa, obscura, elytris opacis, prothorace subnitido, disco obsolete canaliculato, utrinque miniato,

lateribus albidis, extus subinfuscatis; antennis compressis, haud serratis, corporis dimidio longitudine

equalibus. Long. 12-15 millim. 9.

Mas abdominis segmentis quinto et sexto ventralibus ad apices, septimo toto et pygidio albis; hoc latiore,

conyexo, superne carinato, diaphano.

Femina pygidio angustiore, apice rotundato albo, basi infuscata; segmento ventrali apicali apice triangulariter

exciso, et (cum penultimi margine) albo.

Hab. Mexico, Cordova (Sallé).

A species of Lucidota somewhat resembling and allied to LZ. atra, but larger than that

species, and at once to be separated by the white apical segments of the abdomen. ‘The

thorax varies a little in the proportion of its width; and this is in reference to the

size of the specimens and not to their sex, the larger individuals having the thorax

more fully developed. The sides narrow ina sinuous manner towards the front, which

is rather prominent. The disk has a pitchy-black vitta from base to apex. The elytra

show very indistinct traces of one or two nervures. ‘The head, mouth, palpi, antenne,

legs, and underside are entirely pitchy black, with the exception of the apical segments.

In the majority of the males before me the genital or eighth segment is not visible ;

the seventh is broad, but not equal in width to the pygidium. In two other males

separated in M. Sallé’s collection the genital plate is visible as usual; the antenne

are longer, they have the basal joint fuscous. But I do not think they belong to a

different species.

LUCIDOTA. 37

9. Lucidota atra.:

Lucidota atra, Olivier, Ent. ii. p. 28, t. 8. f. 28; Fabr. Ent. Syst. i. 2, p. 101.

Lampyris laticornis, Fabr. tom. cit. p. 99; Cast. Hist. Nat. i. p. 268.

Hab. Norrn America, United States—Nicaracua, Chontales (Belt).

I have only seen two specimens, from Chontales, which I think referable to this

species.

10. Lucidota discolor. (Tab. III. fig. 6, 2.)

Rufo-ferruginea ; antennis, palpis, tibiis, tarsis, abdomine (apice excepto) elytrorumque dimidio apicali nigris ;

thorace transverso, disco foveolato, elytris nervulis tribus parum distinctis. Long. 12-15 millim. ¢ 9.

Mas segmento ventrali apicali, apice producto, genitale superante, rufo.

Femina latior, segmentis quinto et sexto ventralibus puncto rufo, apicali acute exciso.

Hab. Mexico, Playa Vicente, Cordova, Santecomapan (Sal/é); British Honpuras,

Rio Hondo (Blancaneaux); GuatemMata, Vera Paz, San Juan, Chacoj,; Senahu

(Champion, 3); Nicaragua, Chontales (Belt, Janson).—Soutn America, Colombia.

Head small, received into the thorax, rufous or pitchy; antenne two thirds as long

as the body, a little compressed but scarcely serrate; breast and femora rufous—the

latter, especially the posterior pair, tinged with black at their apex. Abdomen black,

with the exception of the apical segment in the male and two punctiform spots on the

fifth and sixth plates in the female. Prothorax with disk very convex, the margins

rather broadly reflexed. Elytra obsoletely pubescent, the apical half smoky black; the

division of this from the rufous basal half is indeterminate and variable. The apical

segments of the male are figured in Trans. Ent. Soc. 1880, pl. i. fig. 11.

11. Lucidota lugens. (Tab. IV. fig. 18, ¢.)

Aterrima, subopaca, prothoracis lateribus modice reflexis, disco in medio obsolete canaliculato fere levi, angulis

posticis subrectis; antennis compressis vix serratis, elytris vix costatis. Long. 14 millim, ¢ 9.

Mas abdominis segmento septimo ventrali fortiter exciso, maculis duabus flavis; pygidio longe, apice leviter

emarginato et elevato.

Femina segmento ventrali apicali, apice minute exciso, maculis duabus obscure flavis.

Hab. Mexico, Oaxaca, Parada, Peras (Sal/é).

The figure is drawn from a male from Peras.

This species is totally black, with the exception of the two luminiferous spots; and

in two or three examples the pleural portion of the prosternum enclosing the head is

brown. ‘The thorax is as long as wide, its disk a little shining, and sometimes with a

faint longitudinal impression in the middle. The antenne of the male are about half

as long as the body; of the female shorter; they have the second joint very short.

The abdomen has the dorsal segments with projecting angles, but hardly lobed.

There is no other species to which this black obscure insect can be compared among

38 MALACODERMATA.

the Lampyride but Alychnus xanthorrhaphus, which, however, has shortened elytra in

the female and is non-luminous, or apparently so. The yellow spots at the apex of

the abdomen of this insect are no doubt luminiferous, though they can scarcely emit

a vivid light. The habits of these black and either little- or non-luminous species

require investigation. One would have anticipated that the more obscurely-coloured

species were of very retired habits, and would, at least in one sex, have been more

luminous than some others. The eyes of the males are scarcely, if at all, larger than

those of the females. |

PHOTINUS.

Photinus, Castelnau, Ann. Soc. Ent. Fr. ii. p. 141 (1833).

This genus as it stands in Lacordaire (Genera des Col. iv. p. 321), and in the sense in

which it is here adopted, includes no less than ten genera proposed by Motschulsky and

two by Leconte, and is the most extensive among the Lampyride. In the Munich

Catalogue 116 species are recorded and referred to it. Some restriction, however,

is necessary; and I have retained Leconte’s genus Pyrectomena, which is there united

with it. It appears to be exclusively an American genus, ranging from Canada

to Buenos Ayres, and probably further south. * Species are indeed referred to it from

China and the Pacific Islands; but their systematic location needs confirmation.

The number of species inhabiting Central America is doubtless large. We here record

between thirty and forty species. The Photini include species of the smallest and

also of large size, and may generally be known by their oblong, rather depressed form,

their simple antenne, and abdomen without lobes to the dorsal segments. The females

have the apical and often the two preceding ventral plates notched.

1. Photinus congruus. (Tab. IV. fig. 12, 3.)

Photinus congruus, Chevrolat, Col. Mex. Cent. i. no. 8.

Hab. Mexico, Cordova, Oaxaca, Puebla, Tuxtla (Sallé).

One of the largest species, 17-21 millims. in length. Thorax with the disk dark,

the margins pale bone-colour. Elytra fuscous, with the suture, a central vitta along

the discoidal nerve, and the fold pale.

There is a variety in M. Sallé’s collection from Oaxaca paler, the thorax with the

disk brick-red, with a large pitchy-black spot; the vittee, especially the discoidal one,

wider; the female with the thorax narrowed from the base as in P. meteoralis.

The specimen figured is from Puebla.

2. Photinus meteoralis. (Tab. IV. fig. 14.)

Nigro-fuscus, latus, opacus, thorace sordide albido, disco et limbo toto nigro, angulis posticis acutis ; abdominis

segmentibus quatuor primis apicibus albis, quinto et sexto diaphanis totis albis. Long. 19-21 millim. ¢ 9.

Hab. GuaTEMALA, San Gerdnimo, Sinanja valley (Champion).

PHOTINUS. 39

Equal in size to P. congruus; the form of the prothorax is different, being longer,

more narrowed in front, and not so wide at the base, from which the sides begin to

contract at once, forming acute angles with the base. There is a rather indistinct

carina on the front half of the disk. ‘The elytra are much darker and more ovate than

in P. congruus, the pale vittz are only a little visible in paler specimens, they have the

lateral margin expanded, two nervures a little visible near the base, and are clothed

with a grey, but very short pubescence. The pygidium in the male is truncate, the

seventh ventral plate with a round emargination, fuscous in the middle, diaphanous at

the sides. In the female the apical plate is dark fuscous, notched, the penultimate

dark at its base.

3. Photinus gliscens. (Tab. IV. fig. 13.)

Pallide testaceus; capite, antennis, palpis, genibus tarsisque nigro-fuscis; prothoracis disco aurantiaco,

macula obconica picea, obsolete longitudinaliter impressa; elytris subparallelis, fuscis, margine externo,

sutura et vitta discoidali sat lata pallide testaceis. Long. 18 millim. ¢ 9.

Hab. Muxico, Tuxtla (Saldé).

This is one of the most conspicuously marked and handsomest of the Photini, and

is very distinct from any other known to me. ‘The head is fuscous, excepting the

mouth and antenniferous tubercles. ‘The antenne and palpi fuscous. ‘The whole of the

underside in the male is pale, excepting the base of the first four ventral plates, which

are irregularly blotched with fuscous. In the female, as usual, the breast and all the

segments are more or less of the darker colour, the paler parts being the margins of

the first four, the middle of the fifth, and the whole of the apical one. The thorax

is nearly semicircular; but the base is a little contracted; the disk bears a rather

long triangular spot, the apex of which is towards the base. The elytra are dark

fuscous, with conspicuously pale margins and central vitta. The male has the

pygidium with a double notch. The female the same, very slightly sinuate; the

ventral plate rounded, and with a minute emargination in the centre.

4, Photinus nigridorsis. (Tab. IV. fig. 17, 2.)

Nigro-fumosus, elytris subopacis, oblongo-ovalis, prothorace antice angustato lateribus late testaceis, elytris

marginibus et apice indeterminate late testaceis. Long. 13-15 millim. g 9.

Hab. Mexico, Istapan, Juquila (Sallé, Mus. J. Sturm).

A female specimen from Juquila is figured in the Plate.

Body beneath, legs, and antenne smoky black ; in the male the seventh and apical

ventral plates and the apical half and margins of the pygidium are pale; in the female

the apex only. The antenne are subfiliform, longer in the male and a little com-

pressed ; the eyes of moderate size, larger in the males than the females. The thorax

is wider at the base than long, the sides sinuous and not much reflexed. The disk is

almost smooth, in some a faintly impressed channel, in others a very fine carina may

40) MALACODERMATA.

be seen on the centre, while at other times it is even, or shows a circular depression.

The elytra are opaque, the discoidal nervure visible, the expanded margin and usually

the apical quarter testaceous; the discoidal portion is fuscous or smoky black, and

ends somewhat indefinitely, sometimes leaving only the apical margin and part of the

suture pale. In the male the margins of the fifth and sixth, the seventh and apical

segments, and apex of the pygidium are pale yellow. In the female the apex alone is

diaphanous.

I have adopted the MS. name attached to a specimen of this species from Sturm’s

collection.

5. Photinus ovatus. (Tab. IV. fig. 16.)

Nigro-fumosus; prothorace subnitido, lateribus late elytrisque triente basali testaceis, his subcostatis.

Long. 13 millim. ¢.

Mas segmentis ventralibus septimo et apicali pallidis, pygidio fusco.

Hab. Mexico, Juquila (Sallé).

Nearly related to P. nigridorsis, but differing so far in coloration that I do not think

it can be considered a mere variety. The disk of the thorax is rather distinctly

channelled, the black central vitta is bordered with red on each side in the middle,

which colour may be seen on the prosternal surface above the front coxe. The

pygidium is not pale.

A single specimen only has come under my notice.

6. Photinus perelegans. (Tab. III. fig. 12.)

Photinus perelegans, Gorh. Trans. Ent. Soc. 1880, p. 31.

Hab. British Honpuras, river Sarstoon (Blancaneaur); Guatemaua, Calderas

(Champion).—ANTIGUA.

The figure is of a male from Calderas.

This species is the first of a series pertaining to Motschulsky’s genus Macrolampis,

which agree in having the fifth and sixth ventral plates longer than those preceding

them and clear ivory-white or yellow, with a lateral impression on each, somewhat like

breathing stigmata (the true stigmata being of course hidden in the folded membrane

connecting the dorsal and ventral plates). The females have a portion of the abdomen

luminous, usually the centre of the fifth segment, but are obviously less brilliant than

the males. In some cases they also have the elytra abbreviated. I have only as yet

observed this in two species (J. longipennis, Mots., and M. extensus, Gorh.). The female

of P. perelegans has the fifth segment broadly whitish yellow, with fuscous spots on each

side of its base, the sixth and seventh plates being fuscous.

Small examples are a little like P. cinctellus, but are always much narrower, and the

thorax is particularly elongate.

PHOTINUS. Al

7. Photinus extensus. (Tab. IV. fig. 11, 2.)

Plumbeo-niger, elongatus, parallelus, thorace albido-flavo, macula oblonga picea, utrinque miniato punctoque

parvo subbasali. Long. 13-15 millim. ¢ Q.

Mas abdominis segmentis ventralibus quinto et sexto albis, marginibus leviter emarginatis, medio bicarinatis,

utrinque impressis, pygidio plus minusve infuscato apice truncato.

Femina elytris abbreviatis, abdominis dimidium vix tegentibus, abdomine lato, ad apicem acuminato, segmento

ventrali quinto macula magna flava.

Hab. Mexico (Hoge, Salle).

Though somewhat resembling P. longipennis, Mots., this species differs from it in

not having the elytra margined with white. The head, antennz, legs, breast, first four

segments of the abdomen, scutellum, and elytra are fuscous black and dull; the disk

of the thorax is a little shining and channelled, the pitchy spot is straight at its sides,

longer than wide, it does not touch the reflexed basal margin, nor does it reach the

front. The little dark punctiform spot on each side seems characteristic. It is very

closely allied indeed to the next species. ‘The female figured is from Sallé’s collection.

8. Photinus productus. (Tab. IV. fig. 10, ¢.)

Plumbeo-niger vel fumosus, elongatus, parallelus, thorace flavo, macula quadrata picea. Long. 15-18 millim.

SQ?

Mas abdominis segmentis quinto et sexto macula magna flava, apice et pygidio totis flavis, hoc apice utrinque

exciso.

Hab. Mexico, Puebla, Parada (Sallé), Chiapas, ? ?

This is very closely allied to P. extensus. It differs in having the ventral segments

in the male luminous only in the middle, the pygidium entirely pale and diaphanous,

the antennee one third shorter. Minor points of difference are that the thoracic spot

is square and the basal dots are absent. |

The female (which, I think, may be that of this species) is fully winged, with very

narrow pale margins to the elytra and suture. In this specimen the fifth ventral plate

alone is yellow in the middle. Being from another locality, Ido not feel that sufficient

evidence exists of its being the same species to justify me in giving the characters of

this female in the diagnosis. The male figured is from Puebla.

9, Photinus attenuatus.

Elongatus, nigro-fuscus, prothorace fulvo, antice rotundato, postice paululum angustato, angulis posticis acutis,

prominentibus, disco longitudinaliter impresso, elytris quintuplo longioribus quam thorax, parum nitidis,

plumbeo-fuscis, coxis et femoribus anticis testaceis. Long. 13-15 millim. ¢.

Mas abdominis segmentis quinto et sexto flavis, marginibus sinuatis, eburatis; septimo flavo, profunde exciso.

Femina latet.

Hab. Mexico, Guanajuato (Sa//é).

The peculiarly long attenuated form renders this an easy species to recognize. It

belongs to the longipennis group of Photinus, which Motschulsky separated under the

BIOL. CENT.-AMER., Coleopt., Vol. IIL., Pt. 2, Aprid 1881. G

42 MALACODERMATA,

generic name Macrolampis. These species have the males with two ventral plates

(the fifth and sixth) very long and diaphanous, and are evidently highly luminous.

The females are heavy insects with short elytra, and, I conceive, are no less luminous

than their males.

The present species has the head fuscous, with large, prominent eyes; the antenne

are not perfect in any of the three specimens before me; but sufficient remains to show

them to be filiform and of moderate length.

The thorax is of a form unusual in this genus, having the hind angles a little turned

out; this and its totally red colour will amply distinguish it from P. extensus.

10. Photinus consanguineus. (Tab. IV. fig. 25, 2.)

Oblongus, subparallelus, flavo-testaceus, capite, antennis, palpis, pectore ex parte, tibiis, abdominis basi et elytris

nigro-fuscis, his sutura margineque testaceis; thoracis disco miniato, macula parum distincta picea.

Long. 13-14 millim. ¢ 9.

Mas abdominis segmentis ventralibus quarto ad apicem, quinto, sexto septimo et apice pallide flavis.

Femina segmento sexto partim, apicali toto infuscato.

Hab. Mexico, Tuxtla (Saillé).

_ This species agrees very closely with specimens in my collection from Norris bearing

the above name ; and it may be assumed to be the P. consanguineus of Dejean’s Catalogue.

I have not been able to see an authentic specimen of Leconte’s species of the same

name ; and as there are several allied species, I cannot feel sure that it will prove to be

the same. It is rather larger and more parallel than the species here referred to as

cinctellus, and has the thorax much less distinctly marked with pitchy; in one example

at least the spot is quite absent. From the species referred to by me as pyralis, Linn.

(Trans. Ent. Soc. 1880, p. 23), it differs in being smaller, with a less distinct thoracic

spot.

The section to which it belongs presents the greatest difficulties, both in separating

the species and in their identification with the Linnean and Fabrician types.

11. Photinus cinctellus, (Tab. IV. figg. 232, 242.)

Photinus cinctellus (Chev. MS.*), Gorh. Trans. Ent. Soc. 1880, p. 24°.

Hab. Mexico!, Cordova, Tuxtla, Panistlahuca (Sallé); GuaTEMALA, Zapote 2, Chacoj

department of Vera Paz (Champion); Nicaragua, Chontales (Belt); Costa Rica, Volcan

de Irazu (Rogers).

12. Photinus simplex.

Fumeo-niger, oblongo-ovatus, prothorace flavo, disco nigro nitido utrinque miniato, elytris fumosis conco-

loribus, femoribus et coxis pallidis, abdominis segmento quinto albo, sexto etiam interdum albescente.

Long. 11 millim. 9°.

Hab. Muxico, Parada (Sallé); Guaremata, Chacoj (Champion).

Another species of the cinctellus group, and very closely allied to that species and to

PHOTINUS. 43

P.reichei. The difference between it and the former consists in its average larger size,

the more brightly coloured thorax, and wholly black elytra, and in its having only the

fifth, or fifth and sixth segments white, whereas in cinctellus the last three plates (and

often the whole abdomen) of the female is pale.

From P. reichei, the shape of the thorax (which is the same as that of cinctellus),

the absence of the slightest tendency to a pale suture, the colour of the ventral

segments, and pale femora distinguish it. I have only seen a few female specimens

which I think belong to this species. |

13. Photinus reichei.

Photinus reichei (Deyrolle, Sallé’s collection).

Oblongo-ovalis, nigro-fuscus ; prothorace (disco excepto) flavo, disco convexo, nitido, late fusco utrinque miniato,

obsolete canaliculato, basi lata; elytris nigro-fuscis, sutura tenuissime flava; abdomine segmentis tribus

ultimis ventralibus et dorsalibus flavis. Long. 11-14 millim. ¢ 9.

Hab. Mexico, Parada (Sallé).

A species with the closest affinity to P. cinctellus, yet probably distinct—the characters

upon which I should place most reliance being its average larger size, the greater

width of the thorax at the base, the nearly uniform width of the marginal yellow of

the sides and front, the dark, almost unicolorous elytra, and the pale dorsal apical

segments (in P. cinctellus these are often, but not always, fuscous, including the pygi-

dium). The base of the legs is darker than in any cinctel/us I have examined.

14. Photinus sturmii. (Tab. IV. fig. 21,2.)

Ater, opacus, oblongo-ovatus, prothoracis lateribus reflexis, late albidis, nigro limbatis, disco tenuiter carinato,

elytris tricostatis. Long. 14-17 millim. 9°.

Hab. Mexico, Puebla (Sallé, coll. Sturm).

Entirely dull opaque black, with the exception of a broad vitta occupying the

reflexed portion of the sides of the thorax, which is almost pure white. The extreme

margin, both lateral and of the base, is narrowly black, and bears a row of punctures.

The disk is dull black, widest at the base, with a very fine but distinct carina (in one

specimen, however, this is posteriorly converted into a very fine channel). The elytra

have three distinct coste, the discoidal one prolonged to near the apex, the other two

vanishing before the middle. The underside is..a little smoother, but scarcely

shining. Se

Four specimens, all females, in Sallé’s collection (one of which is labelled P. lucifera

in Sturm’s writing), and one in the British Museum, are all I have seen of this species.

I have not adopted the name /ucifera, as it has been used for a species of Pyrectomena,

and might thus produce confusion.

44. | MALACODERMATA.

15. Photinus salvini. (Tab. IV. fig. 6.)

Ater, opacus, subtus subnitidus, prothorace sanguineo, medio late nigro-vittato, elytris obsoletius costatis.

Long. 15 millim. ¢ 9.

Hab. Mexico, Durasnal, Parada (Sallé).

This is perhaps the most beautiful of the Lampyride, the blood-red colour of the

thorax contrasting with the opaque black elytra. It is allied to P. stwrmiz, but is more

oblong than that species; the thorax is formed much as in the genus Phenolis,

prominent in front, much rounded at the sides, and contracting to the hind angles,

which are acute. The front and lateral margins incline to yellow, especially under-

neath. The disk has a clearly defined black vitta from the base, where it is widest, to

to the front; it is hardly carinate in front, and very obsoletely channelled in the

middle. The antenne are compressed, widest in the middle, their second joint distinct,

only half as long as the third. In neither sex is there the slightest trace of luminous

spots. The male has the eighth or genital plate distinct, the seventh nearly as long

as the sixth, and only little emarginate. The female has the apical plate notched, but

neither of the preceding ones.

There are two specimens of this in the British Museum; and these, with the male

and female in M. Sallé’s collection, are all I have seen.

The figure represents the female from Durasnal.

16. Photinus guatemale. (Tab. III. fig. 10.)

Photinus guatemale, Gorh. Trans. Ent. Soc. 1880, p. 26.

Hab. GuateMALA, Calderas, Duefias (Champion).

17. Photinus lunicollis. (Tab. III. fig. 9.)

Photinus lunicollis, Gorh. loc. cit. p. 27°.

Hab. Mexico, Puebla, Yolos (Sadlé); Guatnmata, Capetillo, Duefias (Champion).

About twelve specimens of this pretty species have been received from Capetillo. I

have only seen one from Duefas. The figure is that of a female from Capetillo.

18. Photinus ruficollis.

Photinus ruficollis, Gorh. loc. cit. p. 27°.

Hab. Mexico, Cuernavaca (Sturm, coll. Sallé); GuateMaLa, Zapote (Champion) !.

Similar in coloration to Lucidota bella, Photuris collaris, and other species; it may,

however, be known by its /eaden-black depressed elytra, as well as by the almost totally

pale abdomen.

The specimens in M. Sallé’s collection, three in number, from Mexico, are much

larger than the type, and are named awranticollis, Sturm. They are two males and a

female, 14-16 millimetres in length; the former have the base of the fourth, the fifth,

PHOTINUS. 45

and sixth segments and apex entirely clear yellow and smooth. The two subapical

ventral plates are notched triangularly in their centre; the seventh very short, only just

visible.

The female has the same abdominal plates yellow, the structure being as usual in

this genus, the two subapical being emarginate, and the apical (seventh) plate notched.

19. Photinus sanguinicollis. (Tab. III. fig. 8.)

Photinus sanguinicollis, Gorh. Trans. Ent. Soc. 1880, p. 30.

Hab. Costa Rica, Irazu (Rogers).

The specimen figured is a female, and at present remains unique. I have only seen

one other specimen, which may possibly belong to the same species, but which differs

from it both in having the sides of the thorax more widely fuscous, and also in having

the abdomen wholly black. This specimen is from Vera Paz, Cubilguitz.

In the present state of our knowledge of these most interesting insects it would be

absolutely impossible to decide upon their identity or otherwise on single specimens from

different localities. When they are inuch more fully known it is probable that long

series of closely allied species will be found. I am also inclined to think the same

species may present a luminous and a non-luminous form at different times, or under

varying circumstances.

20. Photinus aurora. (Tab. III. fig. 7.)

Photinus aurora, Gorh. loc. cit. p. 30.

Hab. Costa Rica, Irazu, Rio Sucio (Rogers).

21. Photinus cordove.

Nigro-fumosus, subopacus, thorace flavo, disco miniato, in medio et ad basin infuscato, antennis compressis.

Long. 9-10 millim. ¢ 9.

Hab. Mexico, Corduva (Sallé).

Very similar in size and general appearance to P. ruficollis. It is distinguished,

however, by permanent characters. The thorax has the disk with a dark vitta widening

at the base; even its whole edge is sometimes slightly infuscate. The scutellum is

black, as well as the whole of the abdomen—it being therefore doubtful whether this

species is capable of emitting light.

In paler examples the front femora and central parts of the sterna are pitchy.

The only species with which this could be confounded is P. fumigatus. It is, how-

ever, much larger and wider, and has the thorax brighter red, with only a narrow and

rather indistinctly fuscous vitta.

46 MALACODERMATA.

22. Photinus albicauda. |

Niger, opacus, elytris subfuscis; thorace roseo, limbo toto et vitta sat lata mediana nigro-fuscis, lateribus

sinuatis, antice angustatis. Long. 10-13 millim. ¢.

Mas pygidio apice sinuatim truncato, hoc cum segmento septimo et apicali ventralibus albis.

Hab. Mexico, Cordova (Sallé).

This is not very like any other with which I am acquainted. The sinuate sides and

rather projecting front of the thorax, together with its colour and reflexed lateral

margins, give it very much the appearance of a Pyrectomena. The centre of the

thorax presents a deep but rough channel. The front and middle femora are pale,

excepting at the knees. The antenne are nearly half as long as the body, and this,

together with the channelled thorax and a little expanded elytra, sufficiently distinguish

it from any Pyrectomena.

Four males are all I have seen.

23. Photinus latiusculus.

Ovatus, fumeo-niger, prothorace albo, medio nigro-vittato, utrinque roseo obsolete canaliculato, elytris opacis

subpubescentibus. Long. 74-8 millim. ¢ 2.

Hab. Mexico, Cordova, Tuxtla (Sallé).

The antenne are rather long, reaching to the middle of the abdomen, and are very

thin; the mouth and palpi are pale, except at their tips, as are the base of the legs

indistinctly. The abdomen is whitish at the apex, but not very distinctly, excepting

the pygidium and last two ventral segments in the male, and last ventral and dorsal

plate only in the female. The thorax is widish at the base, and rather strongly nar-

rowed to the front. .

This is a species evidently with very soft integuments; the elytra, though black, are

semitransparent. It has the facies of a small Hyas, and somewhat resembles Aspido-

soma pulchellum.

24. Photinus perlucens. (Tab. III. fig. 11.)

Photinus perlucens, Gorh. Trans. Ent. Soc. 1880, p. 297.

Hab. GuareMaa, Calderas 1, Duefias, Capetillo (Champion). 3 @.

A Calderas specimen is figured.

When I drew up the description of this species I had only seen two males; among

three or four more specimens since sent is a female, which only differs in having the

apical ventral segment black.

25. Photinus fumigatus.

Photinus fumigatus, Gorh. loc. cit. p. 28.

Hab. GuateMaa, Zapote (Champion).

PHOTINUS. AT

Very like P. exstinctus, and, like it, apparently incapable of emitting light; this,

however, can hardly be determined from dead examples only. It may be distinguished

from it by being wider and less linear.

26. Photinus affinis.

Photinus affinis, Gorh. Trans. Ent. Soc. 1880, p. 28.

Hab. Muxico, Capulalpam (Sai/é) ; Guarumata, Calderas, Capetillo (Champion).

27. Photinus plumbeus.

Photinus plumbeus, Gorh. loc. cit. p. 29.

Hab. Guatemata, Zapote (Champion).

Very nearly allied to both fumigatus and affinis; smaller, with the elytra of a more

leaden black, and with the abdomen almost entirely white. |

28. Photinus pulchellus.

Photinus pulchellus, Gorh. loc. cit. p. 29°.

Hab. Guatemata, Zapote 1 (Champion); Nicaraeua, Chontales (Janson).

The Chontales specimens differ a little from the type; they are less brightly coloured,

and in the male the fifth and sixth segments are eburated, yellowish; the fourth plate

(much shorter than these) is also whitish.

29. Photinus concinnus.

Photinus concinnus, Gorh. loc. cit. p. 30°.

Hab. Guatemaua, Zapote }, Vera Paz (Champion) ; Nicaragua, Chontales (Janson).

Very nearly allied to pulchellus, smaller and more slightly built, and with the suture

scarcely paler. |

30. Photinus parvulus.

Griseo-niger, prothoracis margine albo, disco nigro, levi, abdominis apice albescente. Long. 43-5 millim. g 9.

Hab. Guatemata, Zapote (Champion).

Var. a. Prothoracis disco nigro-vittato utrinque maculata miniata.

Hab. Mexico, Cordova (Sallé).

Var. 6. Prothorace magis elongato, disco fusco utrinque miniato, elytrorum sutura et margine tenuissime albis.

Hab. Guaremata, Zapote, San Gerdnimo (Champion).

This little Photinus, the smallest species of the whole family yet noticed, is certainly

very near to P. minutus, Say. I observe the following points, however, in which it

diverges. The thorax is more shining and rather longer in proportion to its width;

AS. | MALACODERMATA.

its sides are always more or less whitish (in my types of minutus the red predominates) ;

the abdomen is whitish ; the antenne are longer, reaching to about the fourth seg-

ment of the abdomen, or in male specimens even further. In some specimens there is

an oblong impression on the disk of the thorax, but it 1s not channelled.

81. Photinus picticollis.

Nigro-fumosus, prothorace nitido, disco nigro-vittato utrinque macula sanguinea, margine fusco alboque varie-

gato; femoribus anterioribus basi subalbidis. Long. 8-93 millim. ¢ @.

Mas oculis majoribus, abdominis segmentis quinto et sexto albis vel flavis, eburatis, medio sinuatim emargi-

natis, subapicali brevi albo, pygidio apice fusco.

Femina abdomine fusco, segmento quinto subdiaphano sordide albo.

Hab. Guatemaa, San Gerénimo, Chiacam (Champion).

Although this species presents a superficial resemblance to P. californicus, the

white luminous abdominal segments of the male remove it to another section, it

being, in fact, as I think, allied to species of the extensus group.

The thorax is more vividly marked with carmine or blood-red than that of P.

sobrinus, but is not margined so distinctly with black, the white and fuscous running

into each other. The disk is usually somewhat tumid on each side of a short groove,

and has often two or four tubercular swellings there. In front and at the sides it is

punctured very closely and subrugosely. The elytra are quite sooty black. This

species must be highly luminous, at all events in the male sex; and accordingly we

find the eyes of that sex very large and spherical, much more so than in the other

small Photini, which, though luminous, have not these ivory-white long fifth and

sixth ventral plates in the males.

32. Photinus exstinctus.

Lucidota exstincta, Gorham, Trans. Ent. Soc. 1880, p. 17.

Hab. Mexico, San Luis Potosi (Dr. Palmer), Cordova, Oaxaca (Sallé) ; GUATEMALA,

near the city, Duefias, San Gerénimo (Champion).

This species and the following one were at first referred by me to Lucidota, with

some species of which they have some affinity; but they are so closely allied to

nigricans, Say, a species found in the United States, that it will be better to place them

here at present. Indeed this species is named “ nigricans, Say,” in Sallé’s collection ;

but the representatives of that species, which I have received from Massachusetts, have

the sides of the thorax of the same dark fuscous colour as the disk, whereas among a

good series taken by Mr. Champion, and another in Sallé’s collection, none is even

inclining to be dark. I therefore still think it will prove distinct.

This is one of those few species occurring in various genera which apparently have

no portion of the body translucent, and are therefore presumably not luminous; the

supposition, however, requires confirmation by observation of the living insect.

PHOTINUS. 49

33. Photinus sobrinus.

Photinus sobrinus, Dugés (ined., coll. Sallé).

Lucidota californica, Gorham, Trans. Ent. Soc. 1880, p. 17', nec Mots. Etud. Ent. ii. p. 3 (Ellychnia).

Hab. Cattrornia } (coll. Chevrolat).— Mexico, Guanajuato, Oaxaca, Puebla (Sallé).

Apparently distinct from the last species; the margin of the thorax is fuscous,

leaving (in some cases) only two rosy spots between it and the central vitta. The whole

insect is usually broader and more robustly built.

34. Photinus mexicanus.

Ellychnia mexicana, Motsch. Etud. Ent. ii. 1853, p. 3.

Hab. Mexico.

According to the description, this and Ellychnia californica, Mots., resemble P. co-

ruscus, L., but are much larger; I have not, however, been able to identify any of the

species I have seen with them.

35. Photinus coruscus.

Lampyris coruscus, Linn. Syst. Nat. i. p. 644.

Photinus autumnalis, Melsh. Proc. Ac. Phil. i. p. 308.

Photinus opacus, Sturm coll.

Hab. Nortu Americd, United States, California—Mexico, Oaxaca, Puebla (Sallé).

This is one of those species which seem to defy all attempts at definition, its form

being modified in distant parts of the North-American continent. I had not seen it

before from Central America; but three specimens from Sallé’s collection so closely

resemble P. autwmnalis from New York that I am convinced nothing but the study of

the living insects can settle the question of their specific identity or distinctness.

These specimens appear a little longer and browner; and the red thoracic vitte are a

little wider, and not continued quite to the front margin.

36. Photinus ater.

Photinus ater, Dugés (ined., coll. Sallé).

Ater, oblongo-ovalis, prothorace subnitido, medio breviter obsolete canaliculato; elytris subopacis, callo

humerali parum elevato, confertim punctatis, margine antice paulo explanato. Long. 7-9 millim. ¢ 9.

Mas segmento septimo angulariter exciso lateribus flavis, apicali sat magno.

Femina segmento apicali ventrali apice fisso maculis tribus minutis flavis.

Hab. Mexico, Guanajuato, Puebla, Oaxaca (Sallé).

This curious little Lampyrid is wholly black, with the exception of the small

luminous spots on the apical segment in the female, and on the sides of the subapical

plate in the male. It is of the form of P. coruscus, but smaller than the smallest

examples of that species or of P. autwmnalis. The upperside is a little shining; the

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, Aprid 1881. H

50 MALACODERMATA.

thorax is nearly semicircular, but with the length not much shorter than the breadth at

the base.

PYRECTOMENA.

Pyrectomena (Dejean), Motschulsky, Etud. Ent. 1852, p. 37; Leconte, Synops. 3836; Gorham,

Trans. Ent. Soc. 1880, p. 32.

This is the only one of Motschulsky’s divisions of Photinus I have felt able to retain.

It is a natural genus, composed of species with, on the whole, a very uniform and

distinct aspect. The shape of the thorax and the shortness of the antenne are

especially characteristic. About nine species are now known to me, all from North

America or the West Indies. Cuba has one, St. Domingo one or two; the remainder

from the United States as far north as Lake Superior to Texas. I have seen as yet

only three species from Central America.

1. Pyrectomena angulata. (Tab. IV. fig. 19, ¢.)

Photinus angulatus, Say, Journ. Ac. Phil. v. p. 162.

Hab. Nortu America, Texas (Belfrage).—MeExico, Puebla (Sailé).

I cannot find sufficient difference between a single specimen in Sallé’s collection and

a representative pair of this species sent me by Mr. Belfrage, to warrant their separa-

tion. The Mexican specimen which we figure has less fuscous marking at the sides

of the thorax; the seventh or subapical ventral plate of the abdomen is pitchy in the

middle; and the whole specimen is larger. The thorax is somewhat foreshortened in

the plate. .

2. Pyrectomena vexillaria. (Tab. IV. tig. 20.)

Oblongo-parallela, antice et postice angustata, fusca, capite, antennis basi, prothorace, coxis, femoribus basi,

scutello, elytrorum margine et sutura abdominisque segmentis ventralibus, quarto excepto, flavis.

Thorace lateribus parallelis, antice producto, disco macula pallide fusca, angulis posticis acutis, carinula

subintegra antice minus distincta flava. Long. 15 millim. ¢.

Hab. Mexico, Vera Cruz (Sailé).

This has more the form of the very few specimens of this genus I have seen from the

West-India Islands than of those from the United States; that is, the thorax is more

advanced in front, and the elytra are more sharply acuminate behind. The underside

is generally yellow; but the antenne from the fourth joint, the breast, the tibi, tarsi,

and part of the thighs, the fourth ventral plate and sides of the first three are more or

less pale fuscous. The pronotum is very long, rather roof-shaped, the ridge being a

delicate but distinct carina. The basal margin slopes away on each side from the

centre, meeting the straight sides acutely, and forming a “gable” when viewed

horizontally. The elytra are fuscous, margined entirely (narrowly at their base) with

yellow. ‘Two nervures are distinct, but are scarcely visible at the base, and vanish

before the apex. The antenne are shorter than the thorax.

A single specimen only is in Sallé’s collection.

PYRECTOMENA.—CRATOMORPHUS. 51

3. Pyrectomena, striatella. (Tab. III. fig. 13, ¢.)

Pyrectomena striatella, Gorham, Trans. Ent. Soc. 1880, p 33.

Hab. GuateMata, Duefias, Zapote (Champion, Salvin).

Var.—Panzos, province of Vera Paz (Champion).

The variety is rather more shining and has concolorous coste to the elytra. A

specimen from Duefias is figured.

CRATOMORPHUS.

Cratomorphus, Motschulsky, Etud. Ent. i. p. 35 (1852).

Photinus, Castelnau (pars).

Cratomorphus includes some of the largest species of the Lampyride, rivalling in size

Lamprocera latreillei; and at the same time they are highly luminous insects. The

males have large globular eyes; and in both sexes the antenne are simple. The thorax

has usually two transparent portions near the front margin above the eyes. In this

genus the apical segments of the abdomen exhibit peculiarities of form varying in each

species.

The distribution of Cratomorphus is very much the same as that of Photinus; but it

has not occurred so far north, no species having yet been found above the tropic of

Cancer. On the other hand, it occurs as far south as Buenos Ayres; so that South

America must be regarded as the home of these insects.

The species are not numerous, nor do they appear to occur in such numbers where

they are found ; yet, owing to their large size, they must add considerably to the brilliancy

of the night scene of a tropical forest.

At present I have only seen three species, represented by seven specimens from the

northern continent.

1. Cratomorphus fuscipennis.

Cratomorphus fuscipennis, Mots. Etud. Ent. ii. p. 33‘; Gorh. Trans. Ent. Soc. 1880, p. 34.

Cratomorphus latus, Kirsch, Berl. Zeit. 1865, p. 72.

Cratomorphus albomarginatus, Guérin coll. (ined.).?,

Late ovatus; testaceus, antennis nigris, articulo primo flavo, fusco variegato, secundo brevi flavo, tibiis tarsisque

infuscatis. Long. 27-29 millim., lat. 14-15 millim. ¢.°

Mas abdominis segmentis quinto et sexto marginibus medio sinuatis, septimo late emarginato, pygidio

truncato.

Hab. Nicaragua, Chontales (Bel¢).—Braziu!.

This fine insect is the largest species of ‘“ glow-worm” yet found in Central America ;

and four males sent by the late Mr. Belt are all that have yet occurred.

I have little doubt of its identity with the C. /atus of Kirsch; the reference to

Motschulsky’s species is more doubtful, his description consisting merely of a state-

ment that his insect resembled C. fabricii (giganteus, Drury), but was without the

H 2

52 MALACODERMATA.

pale vitta. I have seen, however, specimens of an insect I cannot distinguish from

this one which were labelled “ Brazil” and ‘Buenos Ayres.”

The upperside is entirely of an ochreous yellow; the prothorax has a very faint

carina, and is scarcely at all transparent in front. The palpi are fuscous; the eyes of

course black, being with the antenne almost the only dark parts; and, owing to its

entirely yellow colour, the luminous portions are not clearly distinguishable.

2. Cratomorphus dorsalis.

Cratomorphus dorsalis, Gyll. in Schonh. Syn. Ins. ii. App. p. 24?; Gorh. Trans. Ent. Soc. 1880, p. 36.

Nec Cratomorphus dorsalis, Mots. Etud. Ent. ii. p. 34.

Oblongo-ovatus ; fuscus, prothoracis disco basi piceo, lineolis duabus rufis; antennis, palpis, tibiis, tarsis,

abdominis segmentibus quatuor primis macula utrinque piceis; elytris costatis, ad margines dilutioribus.

Long. 22 millim. ¢.

Hab. Nicaraaua, Chontales (Janson).—ANTILLES.

The thorax is not so much narrowed towards the front as in C. fuscipennis, so that

the hind angles are more nearly right angles; and there are two lunate clear patches

in the valley of the reflexed front margin. The central carina is very fine indeed,

almost obsolete, The underside is variegated with fuscous and yellow, the pitchy

spots on the abdominal plates being conspicuous. I have a female without locality

which I refer to this species, the underside of which is nearly wholly fuscous, with the

exception of the fifth and sixth segments. ‘The apical ventral and dorsal plates are

nearly similar in form, not truncate, the ventral one notched in the female.

8. Cratomorphus picipennis. (Tab. IV. fig. 7.)

Breviter oblongus, nigro-fuscus vel piceus; prothorace pallido, antice diaphano, medio subcarinato, pedibus

basi dilutioribus. Long. 138-16 millim. 9°.

Mas l\atet.

Femina abdominis segmentis quinto et sexto (marginibus exceptis) albis, diaphanis, apicali triangulari, apice

fisso, pygidio apice rotundato integro.

Hab. Muxico, Cordova (Sallé), GUATEMALA, San Juan (Champion).

The figure represents the specimen from San Juan.

Head, with the antenne and palpi, pitchy, mouth paler; prothorax pale yellowish

white. In the smaller of the two specimens before me the disk is pitchy near the base ;

the depressed portion immediately before the front margin is transparent, so that

the antennee can be seen through from above; the carina divides this clear portion into

two lunate spots. ‘The length of the thorax is about equal to the width at the base;

the hinder angles are right angles, but the corners are rounded off. The scutellum is

pale. ‘The elytra in the larger specimen, which is from San Juan, are pitchy, paler

towards the apical half of the margin; in the smaller specimen they are dark fuscous,

narrowly margined with pale yellow, as well as the suture.

CRATOMORPHUS.—ASPIDOSOMA. 53

The underside (with the exception of the prothorax, the margins of the sternal

plates, the legs, and two luminous segments) is pitchy. The tarsi and greater part of

the tibiee are also pitchy. ‘The elytral costee are but little pronounced.

The smaller specimen is the smallest Cratomorphus that I have seen, and has large

eyes like those of a male; the apical segment, however, is divided by a small notch like

that of females of other species, and is the seventh plate; so that I cannot doubt the

sex. Excepting in the points specified, the description is that of the specimen figured,

in which the head is retracted within the thoracic cavity, and the eyes appear to be of

normal size.

ASPIDOSOMA.

Aspidosoma, Gemminger and Harold, Cat. Col. p. 1645.

Aspisoma, Castelnau, Ann. Soc. Ent. Fr. 1833, p. 145.

Nyctophanes, Motsch. Etud. Ent. i. p. 34 (1852).

This is one of the best-defined genera among the Lampyride. ‘The upper surface is

shield-shaped, depressed, and expanded; the integuments are rather firm, so that they

are not so often shrunken as in other genera.

They do not attain the size of the Cratomorphi, but they are apparently strongly

luminous in both sexes, the males being most developed in this respect; some of the

species are quite small, and then resemble small Photint. Others of moderate size

remind one a good deal of Casside of the genera Physonota or Aspidomorpha.

The distribution of Aspidosoma is confined to Tropical America. A species has

been recorded from Buenos Ayres; and it is probable that the genus extends rather

further south than the tropic of Capricorn. It is also found in the West-Indian

Islands.

1. Aspidosoma laterale.

Lampyris lateralis, Faby. Syst. El. ii. p. 106°; Voet, Col. i. t. 48. f. 3.

Hab. Nicaragua, Chontales (Belt) ; Costa Rica (Van Patten).—SoutH AMERIcAl.

The determination of the species of this genus is a matter of great difficulty, even

with fresh, bright specimens; unfortunately the few specimens of this in the Central-

American collections are not sufficiently fresh for me to feel very confident about them.

They are 15-17 millims. in length, acuminate in front and behind, of an obscure

dirty horn-colour. None of the markings are distinct; those which in these specimens

accord with others in my collection referred to L. lateralis, Fabr., are a subhumeral

patch on the expanded margin, and a narrow spot a little beyond the middle of the

margin, leaving an oblique pale space between them, not exceeding in length one

quarter of the elytral length. Two slightly raised nervures are very little paler than

the ground-colour. The discoidal patch of the thorax is divided by two distinct

red lines.

54 MALACODERMATA.

2. Aspidosoma zgrotum. (Tab. III. fig. 16.)

Aspidosoma egrotum, Gorh. Trans. Ent. Soc. 1880, p. 84.

Hab. Mexico, Oaxaca (Sallé); Guatemaa (Sallé), near the city, Capetillo, Purula,

San Gerénimo (Champion); Nicaracua, Chontales (Janson).

3. Aspidosoma diaphanum.

Aspidosoma diaphana, Gorh. loc. cit. p. 86.

Hab. Muxico, Tuxtla (Sailé); Britis Honpuras, river Sarstoon (Blancaneauz) ;

Gvuatemata, Purula, Cubilguitz, Sabo (Champion) ; Nicaragua, Chontales (Belt).

Very close to A. wgrotwim ; separated chiefly on account of its smaller size and more

distinct markings.

4. Aspidosoma depictum. (Tab. III. fig. 17.)

Aspidosoma depictum, Gorh. loc. cit. p. 85.

Hab. Costa Rica, Volcan de Irazu (Rogers).

A pretty and very distinctly marked species; the specimens of A. diaphanum from

Purula are very much like it. The basal subhumeral spot is more distinct; and the

posterior lateral fuscous spot is longer and more irregular in shape.

5. Aspidosoma pulchellum. (Tab. IV. fig. 15.)

Aspidosoma pulchellum, Gorh. loc. cit. p. 86.

Hab. Mexico, Cordova, Santecomapan (Sal/é); Brrrish Honpuras, river Sarstoon

(Blancaneaus) ; Nicaracua, Chontales (Janson).

The elytral margin is pale, without lateral spots; sometimes, however, it is fuscous;

and this species then very much resembles a small Hyas angularis. The fifth ventral

segment, or fifth and sixth, are luminous in the female.

6. Aspidosoma lepidum.

Aspidosoma lepida (Chevy. ined. coll. Sallé).

Ovale, piceum, nitidum, prothorace flavo, macula laterali et disco piceis, elytris sutura tenuiter, margine in

medio, apiceque extremo testaceis. Long. 7-8 millim. ¢ 9.

Mas abdominis segmentis ventralibus quinto et sexto lete flavis, eburatis.

Femina segmento quinto medio albido-flavo.

Hab. Mexico, Campeche (Sad/é); Guatemaua, San Gerénimo (Champion).

This little Aspidosoma is easily recognized by its very small size, and the rather

distinct markings. The head and two or three basal joints of the antenne are pale,

pitchy fuscous in the male, but dark in the female, as is also most of the body,

excepting the luminous portion, which, especially in the male, is very clear yellowish

white and shining. The thorax is rather coarsely punctured, the discoidal patch

ASPIDOSOMA. 5d

angular in front, not reaching the margin; the lateral spots are in the middle of the

sides, and do not touch the hind angles, but are connected with the central mark.

The elytra are dark pitchy with paler markings, shining, and distinctly but closely

punctured.

7. Aspidosoma ignitum.

Lampyris ignita, Linn. Syst. Nat. i. p. 6451; Fabr. Syst. Ent. p. 201°; De Geer, Ins. iv. p. 49,

t. 17. f. 2.

Nyctophanes ignita, Mots. Etud. Ent. i. p. 11.

Aspisoma polyzona, Chevr. Col. du Mexique Cent. i. fasc. 3 (1834)’.

Hab. Mexico, Vera Cruz?, Cordova (Sallé); Brrriso Honpuras, river Hondo (Blan-

caneaux).—SovuTu AMERICA, Cayenne?.

I can see no difference between examples from Mexico and those in my collection

labelled Cayenne, except that they are rather larger, and have the humeral spot

trapezium-shaped and generally detached from the ground-colour, the pale lines

on the elytra a little more distinct, and the apical half of the margin pale. The

male has the fifth and sixth segments clear yellow, the female only the middle of

those plates pale: sometimes the sixth plate has only a very small luminous spot

in this sex.

8. Aspidosoma bilineatum. (Tab. IV. fige. 89,9 ¢.)

Aspidosoma bilineatum, Gorh. Trans. Ent. Soc. 1880, p. 86.

Hab. Mexico (Boucard), Cuernavaca, Oaxaca, Vera Cruz (Sallé); GUATEMALA,

Capetillo (Champion).

The specimens figured are from Oaxaca.

This appears to be a common species in Mexico. I have seen it in many collections.

The female has only the sides of the two segments before the last one luminous.

9, Aspidosoma costatum. (Tab. III. fig. 18.)

Aspidosoma costatum, Gorh. loc. cit. p. 87.

Hab. Mexico, Cordova (Sallé); Britisn Honpuras, river Sarstoon (Blancaneauz) ;

GuaTEMALA, Sinanja valley, San Gerénimo, Zapote, (Var.?) Cerro Zunil, Las ‘Mercedes

(Champion); Ntcaracua, Chontales (Janson); PANAMA. |

The figure is taken from a British-Honduras specimen.

The variety, which I think will prove not to be a distinct species, is pale lemon-

yellow, with the dark parts only of a pale fuscous colour, but with a bright vermilion

patch on each side of the thoracic spot on the disk. I suspect they were less matured

than other examples when captured. It is observable that these specimens were also

captured at a high elevation.

56 MALACODERMATA.

Subfam. PHOTURIDES.

Placed by Lacordaire as a subordinate group of the Luciolides. The true Lampyrides

with apterous or subapterous females and the true Luciolides are both absent from the

New World; and, independently of this, the importance of the wide prominent head

with the labrum very much reduced warrants our adopting this as a subfamily.

PHOTURIS.

Photuris, Leconte, Proc. Ac. Phil. v. p. 337 (1851); Lacord. Genera des Col. iv. p. 388.

Photuris, as it is adopted here and by Lacordaire, includes all those species which

have the head when extended partly uncovered, thin filiform antennz, and the claws

either simple or divided. In addition to these characters, the males have the seventh

segment produced into a narrow lamellar lobe in the middle, a character which is

useful in determining the place of some species which much resemble Photini. The

structure of the claws affords a means of dividing the genus into sections which appear

sufficiently natural.

The Photurides are peculiar to North and South America, but have an extended

range, being distributed from Canada to the south of Brazil; and one species is even

attributed to Patagonia.

Section I. Claws simple.

1. Photuris fasciata.

Nigro-picea, nitida; pectore, pedibus basi et capite vertice excepto rufis; prothorace flavo, nigro vittato ;

elytris nigris, macula humerali fasciaque lata pone medium flavis. Long. 12 millim.

Mas latet.

Femina segmento quinto ventrali macula parva rotunda, et sexto basi albis.

Hab. GUATEMALA, Sinanja valley (Champion).

Head yellow, with the crown and some marks between the eyes pitchy; antenne

fine, fuscous, the underside of the basal joints alone reddish ; palpi fuscous, paler at

their bases. Thorax nearly semicircular, hind angles acute, not so much produced as

in P. telephorina, Perty, which this species very much resembles; the disk with a short

but deep furrow near the base. Elytra with the humeral callus and three nervures

distinct, narrower than in P. telephorina; the yellow fascia is placed further back. The

suture is narrowly yellow near the base, so that a black spot is almost detached between

it and the humeral mark.

This species is of the same size and coloured so exactly like a Telephorid from other

parts of Vera Paz as to be at first sight undistinguishable.

PHOTURIS. 57

Section II... Male with both claws split, and notched on the inner side ;

female with the claws simple.

2. Photuris discicollis. (Tab. IV. fig. 26.)

Nigra, prothorace flavo, vitta discoidali nigra basi latiore, angulis posticis peracutis productis. Long. 13-15

millim. ¢ 9.

Mas abdominis segmentis tribus apicalibus et pygidio pallide flavis.

Femina segmento quinto in medio, sexto toto et apicali cum pygidio pallidis.

Hab. Mexico, Cuernavaca, Tuxtla, Panistlahuca, Parada (Sallé); GuATEMALA,

Panima, Teleman, Sinanja valley, Zapote (Champion).

The figure is of a female from Panima.

Very closely allied to, but, I think, amply distinct from, P. collaris, Gorh. It is to

be distinguished by its usually larger size, by the black vitta on the thorax, and by the

still longer form of the latter and its very acute angles, by the apical segment being

pale in the male, and by the legs being entirely black.

The head has some very small yellowish marks about the insertion of the antennee ;

these at the base and the palpi are fuscous black. The thorax has a short impressed

channel, foveolate at its base. The elytra are entirely deep black, not shining; three

nervures are visible, but not raised; and the humeral callus is only prominent at the

shoulder.

8. Photuris cyathigera.

Preecedenti similis at minor; nigra, prothorace flavo, vitta discoidali ad basin latiore, marginem anticum non

attingente, angulis posticis subacutis retrorsum productis. Long. 9-10 millim. ¢ @.

Mas abdominis segmento septimo fusco, medio roseo-tincto, apicali maculis minutis utrinque roseis.

Femina segmento apicali basi roseo.

Hab. Muxtco, Parada (Sallé).

Three specimens in Sallé’s collection differ as above; the form of the thoracic vitta is

something like an inverted cup, which has suggested to me the name. Although there

are specimens of a species which I am disposed to refer to P. collaris, which have a

black vitta of rather similar shape, yet none of them has the luminous segments so

much infuscate, and I think on the whole that these will prove to be a distinct species.

It is also allied to the species described by me as P. mexicana.

4, Photuris mexicana.

Photuris mexicana, Gorh. Trans. Ent. Soc. 1880, p. 108. 3 2.

Hab. Mexico (Boucard, Sallé).

There is a series of specimens in Sallé’s collection which, though differing a little

from my types of the above-named species, are hardly more than local varieties. In

them the thorax is sometimes wholly or nearly entirely red, and the apical segment in

the male dark; the elytra are also blacker, but yet are more fuscous than in P. collaris.

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, Aprid 1881. IT

58 MALACODERMATA.

5. Photuris collaris. (Tab. III. fig. 15.)

Photuris collaris, Gorh. Trans. Ent. Soc. 1880, p. 107. 3 a:

Hab. Muxico, Cuernavaca (Sallé); Guatemata, Zapote (Champion).

The figure is that of a Zapote specimen, a rather small female.

The thorax is wholly orange-red and shining; the genital segment of the abdomen

and the produced lamella of the plate preceding are black, the fifth and sixth segments

wholly yellow and eburate. Very few specimens have been sent.

6. Photuris lucidicollis. (Tab. III. fig. 14.)

Photuris lucidicollis, Gorh. loc. cit. p. 107.

Hab. Guatemaua, Duefias, San Gerdénimo, Capetillo (Champion).—Var. MeExico,

Cordova, ,Panistlahuca, Cuernavaca (Sal/é); GUATEMALA, Panima, San Gerdnimo,

Capetillo, Duefias (Champion); Costa Rica.

The specimen figured is from Duefias.

A variable species, both as regards size and coloration, the latter being either quite

dark fuscous, with paler margins to the elytra, or pale with a central obscure pale vitta ;

this form has only occurred as yet at Duefias. The luminous portion of the abdomen,

however, seems constant, the apical excised segment in the female being usually infus-

cate, but sometimes quite yellow. The pale specimens resemble Lucidota apicicornis,

and the darker ones Photinus cinctellus; but the generic characters, especially the

form of the thorax, the structure of the abdomen in the male, and of the claws, will

always suffice to prevent their being confounded.

Section II. 8. Male with external claw split; female with the claws simple.

7. Photuris amena.

Photuris amena, Gorh. loc. cit. p. 108’.

Hab. Mexico, Vera Cruz, Tepansacualco, Cordova (Sallé); GuatTEMALA, near the

city, San Gerénimo! (Champion); Nicaragua (Sallé).

A species with a very Photinoid aspect, and placed in that genus in M. Sallé’s and,

no doubt, in most collections; the external claw, however, is split in the male; and

although in the female the head is not more exserted than in many Photini, in the

male it is incapable of being withdrawn and is visible from above. The elytra are

almost parallel, and the thorax of nearly the same width, with acute hind angles, the

head black, the antenne dark to the base. The body beneath is pale, excepting the

basal segments of the abdomen. ‘The series of specimens in Sallé’s collection are paler

than those from Guatemala.

Apparently a very common species and widely distributed.

PHOTURIS. 59

8. Photuris facialis.

Fumeo-nigra, opaca, capite piceo, facie et infra testaceo, macula frontali minuta; antennis palpisque fuscis ;

prothorace rufo-brunneo, vitta mediana antice et postice latiore nigra, lateribus flavis ; elytrorum margine,

femoribus infra abdominisque segmentis tribus ultimis pallidis. Long. 8-9 millim. ¢ 9.

Mas unguiculis externis fissis, segmento ventrali septimo apice producto, genitali magno, fusco.

Femina unguiculis simplicibus, segmentis ventralibus tribus apicalibus flavis, pygidio fusco.

Hab. GuatEMaLa, Vera Paz, Sinanja valley, Senahu, Panima (Champion).

Nearly of the same size and not unlike P. amwna; distinguished, however, by the

form of the thorax, of which the sides are here narrowed towards the front, by its

colour, which is of a deep red-brown on the disk, and by the general dark fuscous-

black opaque body and elytra. The head is black above, face below the insertion of

the antennz yellow, with a linear spot in front above the labrum. The basal joint of

the antenne is sometimes pale beneath. ‘The thorax is punctured rather coarsely all

over and opaque; a short obsolete channel on the basal half of the disk. The elytra

are opaque, with pale margins not reaching their apex; in one specimen the suture is

slightly paler; scutellum black, a character which will always separate this species

from P. amena.

Section III. External claw split in both sexes.

9. Photuris pennsylvanica.

Photuris pennsylvanica, De Geer, Ins. iv. p. 52, t. 17. f. 8; Cast. Hist. Nat. i. p. 268; Leconte,

Synopsis, p. 337.

Lampyris versicolor, Fabr. Ent. Syst. Supp. p. 123.

Telephoroides vittigera, Mots. Etud. Ent. 11. p. 60.

Var. Telephoroides lineatocollis (Dej.), Mots. loc. cit. p. 59.

Hab. Norta America, Canada, United States—Mexico, Tuxtla, Cordova; Guats-

MALA, Capetillo, Zapote, Sinanja valley, Purula, Sabo, Chacoj, Cubilguitz (Champion).

Var. latior, pallidior, elytris striga pallida inter vittam humeralem et suturam, alteraque ante marginem.—

Gorh. Trans. Ent. Soc. 1880, p. 110 (6).

Hab. Mexico, Cordova, Puebla, Oaxaca (Sal/é) ; Guatemaa (Sal/é), San Juan, Chacoj,

Purula, Panima, Zapote (Champion); Nicaragua, Chontales (Janson).

Var. tota fere pallida.—Gorh. loc. cit. (e).

Hab. Costa Rica; Panama; South AMERICA; GUIANA.

Var. Gorh. loc. cit. (y et 6).

Hab. ANTILLES.

One of the most abundant and widely dispersed of the Lampyride, distributed over

the whole of the northern continent below latitude 45° north, and even reaching the

southern continent. It is probably chiefly to this species that those brilliant appear-

60 MALACODERMATA.

ances described by travellers on the Pacific railway, in passing damp savannas, as

“showers of light ” are to be attributed.

In a species of such wide range a good deal of allowance must be made for variation ;

and among the great number of specimens which I have examined there are several

tolerably well-marked forms, mainly differing in the amount of pigment in the body

and elytra. The varieties 6 and ¢ are more robustly built than others, and do not seem

to occur in the colder regions.

10. Photuris fruticola,

Photuris fruticola (Eschscholtz), Mots. Etud. Ent. iii. p. 60.

Photuris trivialis, Bohem. Res. Eugen. p. 77 (1858).

Hab. Mexico, Cordova (Sallé); Guatemata, Aceytuno, (Salvin), Zapote, Sinanja

valley, Senahu, Sabo, Purula (Champion).—Sovrn America, Brazil, Monte Video.

Var. a. Elytris vitta ab humero ad apicem fere producta, pallida.

Hab. GuatemMaua, Cerro Zunil, Las Mercedes, San Gerénimo, Zapote.

Var. 3. Capite testaceo, corpore paulo minore.

Hab. Mxxico, Cordova (Sailé).

Head black, or slightly tinged with pitchy upon the crown ; thorax pale horny yellow,

rather shining, very rarely darker on the disk, scarcely punctured ; elytra dark fuscous,

with the suture and lateral margin pale, clothed with a fine yellow pubescence ;

scutellum yellow; coxe, trochanters, and thighs (excepting their apices) pale testaceous,

the remainder of the legs dark. Breast and first four segments of the abdomen dark

fuscous, the apex of the third, and often nearly the whole of the fourth, are pale; in

the male the fifth and six plates are long and eburated, with their margins widely

emarginate in an angular manner. The seventh plate in the male has a lanceolate

lobe, covering entirely the genital eighth plate, and is always pale. ‘The antenne and

palpi are dark. In fine specimens the underside of the bilobed fourth joint of the tarsi

is golden-haired.

The variety 3, with the head yellow, is scarcely different from P. frontalis, Leconte,

which occurs in Texas. The thorax, however, is not coarsely punctate, as in my examples

of that species. At present I have only seen one example with a dark disk to the

thorax, which is from Sabo.

In colour this species is very like Lucidota osculati and L. limbata.

Photuris brunnipennis, Jacq. Duval (in Sagra’s Hist. Cuba, vil. p. 39; Gorh. Trans.

Ent. Soc. 1880, p. 111), may be only a variety of the same.

PHOTURIS. 61

11. Photuris mollis. (Tab. III. fig. 19, .)

Photuris mollis, Gorh. Trans. Ent. Soc. 1880, p. 111.

Hab. GuatEMALA, Chacoj, Zapote (Champion).

Var. capite testaceo, prothorace fortius sparsim punctato.

Hab. Mexico, Tuxtla (Sallé).

The specimen figured is a male from Zapote.

Smaller than P. fruticola, and with the disk of the thorax infuscate; the scutellum

also fuscous.

The specimens in Sallé’s collection are like P. frontalis in the yellow head and punc-

tuation, but smaller in size, and with the disk of the thorax infuscate.

12. Photuris lugubris.

Elongata, aterrima, subopaca, prothorace flavo nitido. Long. 11-14 millim. ¢ @.

Mas segmentis ventralibus tribus ultimis flavis, quinto et sexto longis eburatis.

Femina segmentis tribus ultimis flavis.

Var. a femoribus testaceis, coxis anterioribus et intermediis pallidis.

Var. B capite, scutello et mesosterno flavis, pedibus brunneis basi testaceis.

Hab. Mexico, Oaxaca, Juquila (Sallé).—Var. a. GuatemaLa, Purula (Champion).—

Var. 6. Mexico (Sallé, coll. Sturm).

The coloration of this species is common to several Coleoptera from the same region,

and is so precisely repeated in a species of Telephoride that they are usually confounded.

It is also almost exactly that of P. funestis, Gorham, a species occurring in Colombia

and Ecuador; from the latter the three luminous segments at once distinguish it,

P. funestis belonging to a section in which one segment (the fifth) in the female and

two in the male are white. I should have been inclined to give specific value to the

variety B, but that the variety « is as nearly as possible intermediate, and would in

that case have also to be separated. In the male the fifth and sixth segments are

angularly emarginate, but not always conspicuously so; the apical segment is cut out

on each side, so as to form a lanceolate lobe in the middle; but this is not often very

distinct, so that the best distinction is the large eyes and the lengthened, and smooth,

shining yellow fifth and sixth plates.

A further point of distinction between this and my P. funestis is that the thorax here

is more elongate, narrowing to the front, while in the latter it is almost semicircular.

13. Photuris simplex.

Flava; antennis, palpis, ore, tibiis tarsisque infuscatis, prothorace nitido vix punctato. Long. 13 millim. 9.

Hab. Costa Rica, Volcan de Ivazu, Rio Sucio (Rogers).

The plain ochraceous-yellow colour of this species sufficiently distinguishes it, the only

62 MALACODERMATA.

parts which are dark being the antenne (of which, however, the basal joint is partly

yellow), the mouth-organs, which are dark pitchy, the tarsi, which are always fuscous,

and the tibie, which, however, are sometimes yellow.

At present I have only seen four examples, all females. A fifth specimen differs

in having the head black on the crown and the breast fuscous, and may possibly belong

to another species.

14. Photuris scapularis.

Flava; capite, elytrorum angulo humerali, tiblis tarsisque nigris, antennis et palpis fuscis. Long. 10-11

milliim. ¢ Q.

Mas segmentis ventralibus quinto et sexto emarginatis, albis, septimo apice acuto.

Femina mari simillima, capite et oculis minoribus segmentoque apicali obconico mox distinguenda.

Hab. Guatremaa, Cerro Zunil, (Champion).

Allied to P. simplex, but readily separated by the black head and shoulders.

The thorax is shining, obsoletely punctured; the elytra are also punctured, and more

roughly so at the shoulders. The tarsi have the fourth joint, and the others sparingly,

clothed with yellow velvety pile.

Only two specimens have yet been sent by Mr. Champion.

AMYTHETES.

Amythetes, Gemm. Munich Cat. p. 1649; Gorh. Trans. Ent. Soc. 1880, p. 97.

Amydetes, Hoffmansegg, Illiger’s Mag. vi. p. 842; Mots. Etud. Ent. 1853, p. 49.

One of the most remarkable genera in the family, having the extraordinary number

of thirty-five to forty joints to the antennz, with those from the third to the last but

one bearing each a flabellate branch. The three apical segments are evidently highly

luminous in the two species I have seen. It is a New-world genus, the species at

present recorded being five or six in number, from Brazil and Peru. It has only been

met with on one occasion in Central America. |

1. Amythetes plumicornis.

Lampyretes plumicornis, Latr. in Humb. et Bonpl. Rec. d’Obs. Zool. i. p. 186, t. 16. f. 4 (1811).

Amydetes plumicornis, Cast. Hist. Nat. i. p. 264.

Hab. Mexico.

A single specimen taken near the town of Valladolid.

Subfam. PHENGODINTI.

The very singular and anomalous insects which form this section have been placed

by most authors among the Lampyride. Lacordaire, it is true, places them at the head

PHENGODES. 63

of the Telephoride, without, however, as I think, sufficient reason. Leconte (Class. of

Col. of N. Am. i. p. 185) casts some doubt upon their reputed luminosity, but admits

he had never seen a living specimen. The two species known to him have the body

wholly yellow; but in some other species which have dark bodies, e. g. Phengodes

pulchella, Guérin, the two penultimate segments have in their centre a spot, white,

shining, and as obviously luminous as in any of the Lampyride.

Phengodes is the representative of a family which combines the characters of the

Lampyride with those of the Lymexylonide, and slightly with those of the Telephoride.

The head, the eyes, and thorax and elytra show affinity with those remarkable genera

Dioptoma and Ochotyra, Pascoe, and with some allied species from China, of which the

true position is not determined, and, taken in combination with those which are inter-

mediate in form, with Atractocerus. There is not so much diversity from Luciola or

Amythetes as from any of the true Telephoride ; and in a synthetic type such as this is,

I do not think too much weight st should be attached to the form of the palpi or the

insertion of the antenne.

PHENGODES.

Phengodes, Hoffmansegg, Ill. Mag. vi. p. 341 (1807).

1. Phengodes bimaculata. (Tab. III. fig. 23.)

Nigro-fusca ; prothorace, scutello et elytris ferrugineis, his obsolete bicostatis, macula subscutellari fusca, thoracis

disco profunde canaliculato, sparsim sat fortiter punctulato; alis fuscis, nervulo marginali subferrugineo.

Long. corporis 17-20 millim.

Hab. Nicaraaua, Chontales (Belt).

This fine Phengodes is larger than my specimens of either P. plumosa or P. fusciceps,

Lec., and differs from both in the colour of the body and appendages, as well as by the

puncturing and channel of the thorax. Head black, except the front between the base

of the antenne and underside and the apices of the mandibles, which are pitchy red.

Antenne fuscous; basal joint of the same dark colour as the rest. Thorax transverse,

the lateral margins compressed and thin, and hence paler in colour than the central

part; the latter distinctly but sparingly punctured, with a deep channel, reaching

neither the front nor the base, and with a shallow wide fovea on each side at the base,

and a second nearer the front; scutellum punctured, shining, with its apex roundly

truncate. Elytra meeting round the scutellum, thence narrowed and recurved, their

total length being about a quarter of the length from their base to the apex of

the abdomen. Two raised nervures, one passing through the fuscous spot, the other

bordering it externally. Excepting the spot, they are, with the anterior cox and base

of the femora and centre of the metasternum, ferruginous. The posterior legs are quite

black. The abdomen is dark fuscous, and shows no trace of any luminous portion.

I cannot ascertain the sex of either of the two specimens, which are all that have

64 MALACODERMATA.

been captured. The seventh ventral plate is wide, subtruncate, raised in the middle,

from which proceed, between it and the dorsal plate, both a superior and an inferior

short styliform lobe or plate.

This insect is, perhaps, not luminous.

2. Phengodes fusca.

Nigra; ore pedibusque basi piceis ; capite, prothorace et scutello rugose crebre punctatis ; abdominis segmentis

sexto et septimo ventralibus medio albis, nitidis. Long. 14 millim.

Hab. Costa Rica, Rio Sucio (Rogers).

This species is altogether more like the species which I have identified with

P. pulchelia, Guérin. It differs from that in being darker and more roughly punctured ;

the thorax is narrower, and without the thin expanded margin of the last species ; the

elytra are longer in proportion and not so reduced at their tips. The antenn are

more like those of P. pulchella (though broken in the unique specimen sent by Rogers) ;

that is to say, the filaments, which are longer than in P. bimaculata, curl at their ends

in a similar way, probably after death. But it is more especially in its apparent lumi-

nosity that this species shows affinity to the Colombian insect; and of this I feel no

doubt after examining the diaphanous segments.

3. Phengodes nigricornis.

Ferruginea ; antennis, palpis, pectore pedibusque nigris ; prothorace crebre sat fortiter punctato, nigro variegato,

medio obsolete breviter canaliculato, scutello nigro apice ferrugineo ; abdominis segmentis singulis supra et

infra nigro maculatis. Long. corp. 13-14 millim.

Hab. Mexico, Parada (Sallé).

Head dark rusty red, coarsely and confluently punctured, its base with irregular

ruge ; eyes of moderate size; mandibles pitchy. Antenne almost as long as the body,

entirely black, as well as the palpi. Thorax as long as wide, with rounded sides, a

little constricted in front, subopaque owing to the very close puncturing ; the marginal

edge very little expanded, and the hind angles acute but not much produced. The

disk bears a fine longitudinal impression deep in the centre. The elytra are entirely

red. The legs black, only the anterior coxe and the femora are marked with red at

their bases. The abdomen is not so prolonged in either of the two specimens which I

refer to this as in P. plumosa or P. bimaculata; but each segment has the central

portion of the base black; on the dorsal surface this marking is reduced to two spots,

excepting on the apical and subapical plates.

The species of this genus are evidently variable in the colour of most of their organs.

The basal joint of the antenne and the elytra seem to be fairly constant; and the form

of the thorax and its puncturing seem to justify me in separating this species from the

one which follows.

PHENGODES. 65

4. Phengodes bipennifera. (Tab. V. fig. 1, var. «.)

Ferruginea, nitida; antennis, articulis duobus basalibus exceptis, elytrorumque apicibus fuscis ; prothorace

disco nitido, obsolete canaliculato, subtiliter punctulato, angulis posticis acutis, productis. Long.

13 millim.

Var. a, occipite, prothoracis disco, pectore et scutello, abdomine etiam maculis nigris.

Var. B, palpis et pedibus, basi excepta, nigris.

Hab. Mexico, Durasnal, Tuxtla, Cordova (Sallé); GuatemaLa, Chiacam, Senahu,

Chacoj (Champion).

The figure represents the specimen from Durasnal.

Allied to P. plumosa, but, in addition to its smaller size, distinguished by the longer and

darker antenne, the channel on the disk of the thorax, and by the latter being distinctly

punctured. It is evidently variable in colour; but the yellow predominates. In the

five specimens which I assign to this species, one has the head and thorax and body

partly infuscate (var. 3); this is from Senahu; while one from Durasnal has the palpi

and legs black, excepting the coxe and femora (var. a), the body in this one being

wholly ferruginous.

The wings are fuscous, with darker marginal nervures, and are as long as the body.

The apices of the elytra, and in some specimens the inner margins, are blackish. The

thoracic channel is usually divided into two portions, one near the front margin, one on

the disk; but these are at other times connected by a very fine impressed line.

5. Phengodes minor.

Nigra, capite et prothorace rufo-ferrugineis, pedibus basi pallidis. Long. 84-9 millim.

Var. capite prothoracisque lateribus nigris.

Hab. Guatemata, Purulaw—Var. Cerro Zunil, Senahu (Champion).

This is the smallest Phengodes I have yet seen; and it is very easily distinguished by

its dark colour, excepting the head and thorax, which are usually clear, dark, rusty red.

In one specimen captured on Cerro Zunil, and which has the head and sides of the

thorax black, the basal joint of the antenne is reddish ; but in all the other specimens of a

considerable series taken by Mr. Champion it is black. They are nearly equal in length

to the body. The maxillary palpi seem more acuminate than in other species of this

genus. The thorax is punctulate, shining, and has a longitudinal impression, obsolete

in front and behind.

Fam. TELEPHORID.

The establishment of this as a separate family is due to Lacordaire—previous authors, .

and, indeed, many still (including Leconte in his ‘ Classification of the Coleoptera of North

America’), regarding it, with the Lycide and true Lampyride, as only of subordinate

rank. In addition, however, to the manifest unsuitableness of the term Lampyride

for the three sections taken together, the characters which separate these insects are

trenchant, and entitle them to the rank of a family equally with the Melyride and

BIOL. CENT.-AMER., Coleopt., Vol. IIT., Pt. 2, June 1881. K

66 MALACODERMATA.

Cleride. These are the different modes of insertion of the antenne, which are always

separated by a space at their bases, and the absence of luminosity.

Taken as a whole, the Telephoride are pretty uniformly distributed over the whole

globe, but may be subdivided into groups which are more or less characteristic of the

latitude they inhabit. Thus the Chauliognathini, which have the males furnished with

a clasping anal segment largely developed, are confined to the tropics of America;

while the Telephorini proper are essentially the form of the northern temperate zone.

The Silini are the most widely spread of the subfamilies, some remarks upon which

will be found in their proper place under the genus Si/is.

Subfam. CHAULIOGNATHINTI.

DAIPHRON.

Genus Ohauliognatho affine; antennis latis, interne serratis, articulo tertio obeonico, quarto multo breviore et

minore plerumque distinctum.

Caput antice productum ; antenne compress, basi et apice minus late, articulo primo valido, secundo perbrevi

ut in Chauliognatho, tertio obconico quam quartus duplo minore. Palpi ut in Chauliognatho. Prothorax

subquadratus, limbo vix reflexo. LElytra aut postice ampliata, aut parallela. Abdomen maris segmentis

septem, septimo ventrali elongato, fortiter convexo; femine transverso, inequali, medio exciso. Tarsorum

articulus primus secundo paulo longior.

Two types of insects are included in the group for which I propose this genus; in

the first the elytra are widened posteriorly, giving the species a very Lycus-looking

form, which their ochreous colouring relieved by black fascize or apices enhances. In

the second the elytra are parallel, much as in Chauliognathus, but the wide antenne

and almost unmargined thorax give them a peculiar facies; in these species the head

is not so much produced, and it is always black ornamented with three yellow lines

The genus is almost peculiar to Central America. I have, however, one species from

Santa Catharina and one from Ecuador, both, I think, undescribed; but one is labelled

“jugeletii,” a name from Dejean’s Catalogue.

Section I. Elytra expanded towards the apex.

1. Daiphron lyciforme. (Tab. V. fig. 2.)

Ferrugineum ; occipite, antennis, palpis, thoracis vitta, scutello, pedibus (basi excepta), pectore, abdominis

lateribus et segmento apicali, elytrorumque apice nigris. Long. 17 millim. ¢ @.

Hab. Guatemata, Cubilguitz (Champion), Chinantla (Sallé); Nicaracua, Chontales

(Belt).

The figure is drawn from a Chontales female. Head yellow in front and beneath,

crown black, opaque; antennez of the male rather more than half as long as the body,

flat and a little serrate. Thorax rather wider than long, not punctured, but opaque

with a waxy look ; hind angles distinct, front angles obtuse and not distinct; central

vitta narrow. FElytra almost twice the width of the thorax at the humeral callus, which

is distinct, and continued as a fold to the middle of the elytra; the sides widen till the

DAIPHRON. 67

commencement of the black part, from which point they are rounded to the suture.

About one third of the elytron at the apex is black ; but this is subject to variation, the

Cubilguitz specimen having less black, and the division between this and the ochreous

part not so sharply defined.

The structure of the apical segment in the male is similar to that of Chauliognathus ;

the seventh segment forms a convex valve-like clasper, the pygidial plate being’ laterally

compressed. The colour of the ventral plate affords good specific distinctions. The female

has the sixth plate wide, with its apical margin sinuous and acutely excised in the middle,

a small seventh segment being also present. Four specimens are all that I have seen.

2. Daiphron ochraceum.

Ochraceum vel ferrugineum ; macula occipitali, antennis, palpis, tibiis et tarsis, scutello, abdominis lateribus et

apice nigris, femoribus apice infuscatis. Long. 17-20 millim. ¢ Q.

Hab. GuateMALa, Cubilguitz, San Juan, Teleman, Senahu (Champion).

Of the same size and similar in form to D. lyciforme. The antenne are in the male

almost equal to the body in length. The thorax has no vitta; but a small double fossa

in front of the scutellum is infuscate. Both the front and basal margin both in this

species and in D. lyciforme are sinuous and faintly emarginate in the centre.

3. Daiphron crassicorne. (Tab. V. fig. 24.)

Nigrum ; prothoracis lateribus, elytrorum basi et capite ante antennas rufis; antennis latis, ad apicem attenuatis,

serratis. Long. 10 millim. 9°.

Var. Pedibus basi, pectore, capite et prothorace rufis, hoc antice nigro-notato. Long. 9 millim. ¢.

Hab. Guatemata, Zapote (Champion).

The male is the paler of two specimens taken by Mr. Champion, the one shown in

our Plate being the female. In the former the head is entirely yellow beneath, the

crown infuscate; the thorax is subquadrate, a little narrowed in front, with a shallow

wide impression near the base, which is pale fuscous, and a dark spot near the front

margin. The elytra widen from the base to the apex, the black portion occupying half

their length in the male and rather more in the female; in the latter the suture and

scutellum are fuscous. The edge of the black is indented in both specimens. The

antenne are formed as in other species of this genus, but are wider, and their middle

joints are more triangular than in any; the third joint is very much smaller than the

fourth, not being half as long and much less expanded ; joints 4-8 are wide, somewhat

cup-shaped; joints 9, 10, and 11 gradually decreasing in width. ‘The legs in the male

are yellow below the apices of the femora; in the female they are quite black.

A species of Longicorn of Mr. Bates’s genus Tethlimmena so precisely resembles this

insect as readily to escape detection, both the colour, size, and general form (including

that of the antennze) being similar; even the projecting point on the edge of the black

apical part is the same in each. They were not, however, taken in company.

K 2

68 MALACODERMATA.

Section II. Elytra with the sides parallel or narrowed towards the apex.

4. Daiphron proteum. (Tab. V. figg. 14, 15, 16.)

Nigrum ; capite infra rufo, supra vittis tribus rufis ; prothorace quadrato angulis rotundatis, rufo, plerumque

nigro-vittato ; elytris rufis vel nigris, vel nigro rufoque fasciatis vel dimidiatis; pedibus nigris, basi sepe

rufis. Long. 10-14 millim.

Var. a. Elytris rufis, pedibus nigris.

Var. (3. Elytris rufis, pedibus basi rufis.

Var. y. Elytris rufis fascia lata apiceque nigris, pedibus nigris, basi rufis.

Var. 5. Elytris nigris, humeris et fascia mediana rufis, pedibus vel nigris vel basi rufis.

Var. e. Elytris basi rufis, sutura prope scutellum et apice late nigris, pedibus vel nigris vel basi rufis.

Var. ¢. Elytris nigris, humeris tantum rufis, vel totis nigris, pedibus nigris.

Var. n. Prothorace lete rufo, haud vittato, elytris totis nigris, pedibus vel nigris vel basi rufis.

Hab. Var. a. Mexico, Cordova (Sallé); GUATEMALA, Capetillo, San Gerdnimo,

Panzos, Cahabon, Cubulco, Teleman.—Var. B. Mexico, Oaxaca, Cordova (Sallé) ;

Costa Rica, Volcan de Irazu (Rogers).—Var. y. Mexico, Oaxaca, Cordova (Sallé,

Boucard); Guaremana, Capetillo, Chacoj, Senahu, Teleman (Champion).—Var. 64.

Mexico, Cordova, Vera Cruz, Tuxtla (Sal/é) ; GuaTemaLa, Capetillo, Zapote (Champion).

—Var. ¢«. Muxico, Cordova, Tuxtla (Sallé); GUATEMALA, Capetillo, Duefas, Chiacam

(Champion).—Var. ¢. Mexico, Orizaba (Sallé); GUATEMALA, Capetillo, San Geronimo,

Senahu, San Isidro (Champion).—Var. 7. Mexico, Tuxtla (Sal/é) ; British Honpuras,

river Sarstoon (Blancaneaux); GUATEMALA, Panzos, Teleman, San Geronimo (Champion).

Figure 14 of the Plate represents a female of var. y, from Capetillo ; figure 15, a female

of var. «, from San Gerdnimo ; figure 16, a male of var. ¢, from Capetillo. |

A singularly variable or polymorphic species. The head is very constant in colour,

as is the black body. Some of the varieties appear to be tolerably distinct segregated

forms, such as var. n. Var. y is the form mimicked by Photuris fasciata, mentioned at

page 06 of this volume.

CH AULIOGNATHUS.

Chauliognathus, Hentz, Trans. Am. Phil. Soc. new ser. i. p. 460 (1830).

Chauliognathus is peculiarly a new-world genus of Telephoride. It is pretty evenly

distributed over the whole of both North and South America; but the species found in

the temperate parts are more feebly developed than those of the tropics. The genus

is remarkable for the possession of a thread-like lobe to the maxille, which, according

to Leconte, can be protruded from the mouth when alive. Between thirty and forty

species have been already described.

Section I. Elytra ample, covering the abdomen.

1. Chauliognathus rex.

Niger; prothorace elytrisque ochraceis, his triente apicali, illo puncto discoidali, nigris ; abdominis limbo

laterali, segmentis dorsalibus apiceque flavis. Long. 20-23 millim. ¢ Q.

CHAULIOGNATHUS. 69

Hab. Mexico, Capulalpam (Sad/é) ; Guaremata, Purula, Sabo (Champion).

Allied to C. heros, Guérin, from which it differs in being larger in average size, rather

more shining ; the yellow parts are orange-red instead of pale yellow; the black portion

of the elytra does not exceed the apical third in any of the specimens from Central

America. The ventral portion of the abdomen is blacker; only the margins of the

segments externally and laterally, and the apical valvular plate in the male with the

short preceding segment (which is only present as a lobe on each side), and in the

female the two apical segments, are yellow. The dorsal surface is yellow, whereas in

C. heros this part is for the most part black. About a dozen specimens were taken by

Mr. Champion. | |

2. Chauliognathus nitidicollis.

Niger ; prothorace elytrisque flavis, illo nitido, puncto discoidali sat magno nigro ; abdominis segmentis singulis

marginibus lateralibus et apicalibus flavis, apice ipso flavo. Long. 18-20 millim. ¢ @.

Hab. Costa Rica, Volcan de Irazu, Cache, Rio Sucio (Rogers).

This species is more parallel (the elytra not being widened behind) than the last.

The head, breast, basal six segments of the abdomen, and appendages are black, only

the margins of the abdominal ventral plates and its apical segments being yellow.

The thorax is very smooth and shining; it is quadrate, inclined to be transverse.

The elytra are somewhat rounded at their apices, leaving the sutural angle open.

3. Chauliognathus dimidiatus. (Tab. V. fig. 3.)

Chauliognathus dimidiatus, C. Waterhouse, Trans. Ent. Soc. 1878, p. 330.

Hab. Mexico, Cordova (Sadlé); Nicaracua, Chontales (Janson, Belt); Costa Rica,

Volcan de Irazu (Rogers).

The figure is taken from a male specimen from Chontales.

This species is liable to vary in the form of the thorax, which is more oblong in some

specimens: in one from the Volcan de Irazu the disk of the thorax is infuscate ; and in

two males taken by Mr. Belt at Chontales the valvular apical segment of the abdomen,

as well as the oth, is nearly black. In other specimens the abdomen is nearly black

beneath, with the apical plate in the male yellow and very smooth and shining.

4, Chauliognathus sodalis. (Tab. V. figg. 8, 9.)

Chauliognathus sodalis, C. Waterhouse, Trans. Ent. Soc. 1878, p. 326°.

Callianthia grandis (Sturm coll.).

Hab. Mexico (Sallé), Oaxaca! (B.M..).

The figures are from specimens from Sallé’s collection, both females ; fig. 9 represents

the var. 2 of Mr. Waterhouse’s description. There were also specimens of his var. 1,

taken by Sallé; but I do not observe that they differ materially in form. The abdomen

70 MALACODERMATA,

is wholly black beneath in all these specimens; the pygidial plate, which is very narrow,

and the apical margins of some of the preceding segments on the dorsal surface are

yellow. It is one of the largest species of Telephoride, being sometimes an inch in

length.

5. Chauliognathus jucundus. (Tab. V. fig. 5, 2).

Niger ; subopacus, prothoracis margine elytrorumque plaga humerali ochraceis ; abdominis segmentis ventralibus

marginibus apicalibus tenuissime flavis. Long. 14-17 millim. ¢ Q.

Hab. Guatemaa, San Geronimo, Cubulco (Champion).

The figure represents a female from San Gerénimo. Head and thorax scarcely shining,

the latter as wide as long or rather wider, all the angles rounded, the base sinuous and

narrowly yellow, the sides and front more widely so. Elytra dull black, finely alutaceous ;

a sharply defined yellow splash occupies the shoulder, and extends nearly or quite half-

way down the elytron, but is then suddenly reduced to the extreme limb or thickened

margin ; and this is sometimes, with the apex itself, very finely yellow. The underside

is entirely black, with the exception of the apices of the ventral plate, which are

narrowly pale.

Among a very considerable series of specimens taken by Mr. Champion, all, with one

exception, are females. The single male does not differ much in colour or size from

many females, nor are the antenne perceptibly longer; the apical ventral segment is

black, the apical dorsal yellow in both sexes.

6. Chauliognathus tricolor. (Tab. V. fig. 6.)

Niger ; prothoracis margine elytrorumque plaga humerali rufis, sordide carmineis, apice late flavo, limbo miniato.

Long. 15-17 millim. 9°.

Hab. Nicaragua, Chontales (Belt, Janson).

Evidently allied to C. jucundus, but to be distinguished by its peculiar coloration ;

the humeral stripe and thoracic margin are of a rosy red; and this colour on the elytra

merges on the margin into the pale apical portion, leaving as it were the discoidal part

of the united elytra fuscous black.

The form of the insect is almost the same as that of C. yucundus: the elytra are of

the same width as the thorax at the base, thence they widen gradually to the middle,

and are then narrowed towards the apex. When closed, the sutural angle of the elytra

would be a little open, each elytron having its apex rounded. Only three specimens

have been sent.

7. Chauliognathus tabulatus.

Niger ; prothorace elytrisque testaceis, his macula scutellari alteraque magna communi pone medium, illo disco

nigris ; abdominis segmentis ventralibus flavo marginatis. Long. 15-17 millim. ¢ 9.

Hab. Costa Rica (coll. Gorham); Nicaragua, Chontales (Lel¢).

CHAULIOGNATHUS. 71

Of the same form as the two preceding species; the elytra are of a uniform straw-

yellow, with the discoidal black portion broken into a scutellar spot, and a large irre-

gular and varying patch usually behind the middle, but sometimes produced forward so

as nearly to join the scutellar spot. The posterior patch or spot is more or less qua-

drangular in form; it does not reach the margin.

In the male the valvular apical plate is black at the base and yellow at its apex.

This may be an extreme form of C. éricolor, the specimen from Nicaragua being in

some respects intermediate. Till any better characters are found I rely upon the dull

yellow colour of the elytra, and the divided colour of the male apical segment.

8. Chauliognathus janus. (Tab. V. fig. 4, 3.)

Chaulhognathus janus, C. Waterhouse, Trans. Ent. Soc. 1878, p. 829°.

Hab. Mexico, Panistlahuaca (Sallé) ; Guatemata, San Gerénimo (Champion).—Sovutu

America ; Ecuapor}, Sarayacu (Buckley).

The figure represents a male from San Gerénimo. This species is very variable in the ex-

tent of the yellow fascia, which is occasionally wanting, or interrupted at the suture ; while

at other times it occupies the whole base excepting a very narrow portion, and then affords

grounds for doubt whether the species can be separated from C. tripartitus, Chevrolat.

The abdomen is yellow, each segment before the apical one with a black spot on each

side, sometimes united ; in the female the fifth segment is sometimes quite black.

9. Chauliognathus tripartitus.

Chauliognathus tripartitus, Chevrol. Col. Mex. Cent. ii. fasc. 5, no. 1067; Waterh. loc. cit. p. 8277.

Hab. Mexico 4, Cordova (Sallé), Jalapa (Hoge); GuaTemata 2, San Gerénimo (Cham-

pion).

The abdomen in this species is similar to that of C. janus; in the male the ventral

segments are often entirely yellow, or only the two before the valvular plate are spotted.

10. Chauliognathus distinguendus.

Chauliognathus distinguendus, C. Waterhouse, Trans. Ent. Soc. 1878, p. 328.

Hab. Mexico, Oaxaca (var. B.M.); Guaremana.~-

11. Chauliognathus togatus. (Tab. V. figg. 10,11.)

Chauliognathus togatus, C. Waterhouse, Trans. Ent. Soc. 1878, p. 3267.

Hab. Mexico, Oaxaca! (B.M.), Guanajuato (Dugeés, coll. Sallé).

The figures represent both males in Sallé’s collection from Guanajuato.

This very singular species is of a rich brick-red above; and usually the head, breast,

72 MALACODERMATA.

and appendages are black. It is, however, variable. The breast and base of the

thighs and coxe are red in some examples. The black on the thorax varies from the

entire disk to three spots arranged transversely in a row, and that on the elytra from

two large spots to an entire fascia, while in one example the apical third is black, with

a minute red spot at the sutural angle.

The valvular plate of the male is always black. Two examples from Sturm’s collec-

tion have the elytra entirely red.

12. Chauliognathus signatus.

Chauliognathus distinguendus, var.?, C. Waterh. Trans. Ent. Soc. 1878, p. 328.

Callianthia signata (Sturm coll.).

Niger ; C. togato latior et preesertim brevior; prothorace elytrisque pallide flavis, his. basi et macula magna

rotunda pone medium nigris, illo punctis tribus ; abdominis segmentis flavo marginatis. Long.17millim. °.

Hab. Mexico (coll. Sturm).

The different form and colour, and the black base of the elytra and differently

coloured abdomen, indicate a distinct species from C. togatus, to which it is allied. It

is very near to C. distinguendus, var.?, Waterh. The number of spots on the thorax

seems liable to vary: one specimen has only two.

13. Chauliognathus nigrocinctus. (Tab. V. fig. 12.)

Niger ; ore, abdomine (segmentis basi nigris), metasterni pleuris et thorace flavis ; elytris stramineis, his fascia

tenui, illo macula discoidali transversa nigris. Long. 13-15 millim. g¢ 9.

Var. elytris basi nigris (coll. Sturm, @ ).

Hab. Mexico, Guanajuato (Duges, coll. Sallé).

The larger examples of this species only equal in size the smaller of C. togatus. It

is of the same parallel form as that ; and the thorax isof similar shape. The transverse

mark on the disk is not separated into spots in any one of the six specimens before me;

but in the variety there is a punctiform spot at each end of it.

The valvular plate in the male is blackish at the base, fading into testaceous at the

apex. ‘The abdominal ventral plates are yellow, with black bases. The antenne are

inserted in yellow spots; and the mandibles are yellow.

14. Chauliognathus bilineatus. (Tab. V. fig. 13.)

Flavus; capitis basi et macula transversa occipitali, prothorace lineis duabus, elytris puncto pone medium,

antennis, palpis, parapleuris, segmentis ventralibus singulis maculis quatuor, tibiis tarsisque nigris,

Long. 17-19 millim. 9°.

Var. abdomine segmentis ventralibus immaculatis, puncto elytrorum majore. Long.14 millim. g.

Hab. Mexico (coll. Sturm).

This species may be well recognized by its elongate form and general ochraceous-

. yellow colour. The yellow head with only the gular portion and a curved mark between

CHAULIOGNATHUS: 73

the eyes is also characteristic. The elytral spot is very small, and in the specimen

figured is obsolete. The extreme apex of the femora is black. The antenne are half

as long as the body in the female, rather more in the male.

' There are four specimens only of this in Sallé’s collection. .

Section II. a. Elytra more or less shortened, or lancet-shaped at their extremity.

15. Chauliognathus pallidus.

Chauliognathus pallidus, C. Waterh. Trans. Ent. Soc. 1878, p. 330. |

Hab. Mexico, Toxpam (Sallé); Guatemaa, Sinanja valley, Panima, Zapote (Cham-

pion); Nicaragua, Chontales (Janson). |

With this species we commence a section of the genus characterized by their long

legs and frequently shortened elytra. In the present species these are shorter than the

abdomen by about one fifth of their total length; their apex is lancet-shaped, and the

underwings are exposed. The antenne are as long as the body, black. The legs are

black, with the exception of the cox, trochanters, and a very small portion of the base.

The valvular plate in the male is, with the whole of the underside, yellow.

Mr. Waterhouse’s type has the femora not so fully black as those now before me, but,

I think, does not differ from them specifically. His variety is, I think, a distinct species.

16. Chauliognathus cdemeroides.

Flavus; elytris macula basali, antennis, palpis, femorum apicibus, tibiis tarsisque nigricantibus ; elytris corpore

vix brevioribus. Long. 15-17 millim. 6 @.

Hab. Mexico, Toxpam (Sallé); British Honpuras, Rio Hondo (Blancaneaus) ;

GUATEMALA, near the city, Aceituno, Cahabon, Chaco}, Panzos, San Geronimo, Purula

(Champion); Nicaragua, Chontales (Belt, Janson), Chiriqui.

Head moderately long, but not so produced as in C. pallidus. Palpi black, with pale

articulations. Thorax elongate quadrate ; margins little reflexed. lytra pale yellow

or ochraceous, usually opaque, not so conspicuously shortened as in C. pallidus, and with

at least a portion, generally the whole, of their base black. This is a smaller and less

robustly made species than C. pallidus, the femora are constantly paler, the elytra

longer and of a softer texture. It scarcely differs from C. discus, Leconte, except in not

having the thorax so orbiculate and in the black base of the elytra.

17. Chauliognathus fuscescens.

Pallide testaceus vel ochraceus ; antennis, palpis, tibiis tarsisque fuscis; capite et thorace etiam interdum infus-

catis. Long. 12-15 millim. dg Q.

Hab. Mexico, Cordova, Oaxaca, Toxpam (Sallé); GuaTemaLa, Sinanja valley (Cham-

pion); Nicaracua (Sallé).

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, Tune 1881. L

74 MALACODERMATA.

Head with the eyes very prominent, not much produced, but constricted behind ;

antenne frequently as long as the body. Thorax with three impressions—two lateral,

one in the centre near the base, divided by a short and somewhat obsolete keel ; it is

more quadrate than in C. easanguis, which it otherwise very much resembles. The

elytra nearly conceal the wings; they have rarely any trace of black at their bases.

The valvular plate in the male is often fuscescent, but only faintly so. In one specimen

only the whole thorax is fuscous.

18. Chauliognathus exsanguis.

Pallide testaceus ; antennis palpis et ore nigris, tibiis et tarsis plus minusve infuscatis. Long. 10-11 millim.

Hab. Guatemata, Cubilguitz, Lanquin, Panima, Panzos (Champion).

Smaller than C. fuscescens, and with the elytra more abbreviated ; the thorax is also

narrower and not uneven, although there are faint indications of a basal depression.

The legs are paler, in some examples only showing a tendency to become fuscous. The

antenne hardly exceed half the body’s length.

19. Chauliognathus lituratus.

Pallide testaceus vel sordide fuscus ; capite et thorace nigro-signatis ; antennis, genibus, tibiis tarsisque fuscis ;

elytris abbreviatis. Long. 10 millim.

Hab. Mexico, Panistlahuca, Toxpam, Cordova (Sallé); Nicaraeua, Chontales (Belt).

Very variable in colour, either pale dirty yellow or fuscous, with paler margins to

the elytra. The head is pale, more or less spotted or clouded with fuscous at the base

or between the eyes. The thorax has sometimes a transverse irregular mark formed of

several smaller united spots, or is quite yellow, or has a horseshoe mark. The knees

and tibiee, with the tarsi, seem constantly infuscate. The elytra are shortened so as to

leave about one quarter of the abdomen uncovered.

20. Chauliognathus nigriceps.

Flavus, opacus ; capite subnitido nigro, epistomate flavo-maculato, antennis, pedibus, abdominis segmento ultimo

maris ventrali, dorsalibus utriusque sexus et scutello nigris; alis fuscis; elytris abbreviatis, postice acumi-

natis. Long. 10 millim. ¢ 9.

Var. elytris nigro marginatis.

Hab. Mxxico, Cordova (Sallé); British Honpvuras, river Sarstoon (Blancaneaua) ;

GuATEMALA, Sinanja valley, Senahu (Champion).

This is very distinct from C. lituratus by the black head and scutellum. The side

of the head in front of the eye is pale yellow; and the mandibles are of this colour at

their base. The thorax is quadrate and rather smooth, the hind margin narrowly

raised. The coxe are black externally, but yellow on their internal side.

The variety with the elytra margined with black laterally is a male, and has the

valvular plate black. It is from Mexico.

CHAULIOGNATHUS. : 75

21. Chauliognathus apicalis.

Niger; mandibulis basi maculisque duabus ad antennarum insertionem albis; prothorace elytrorumque apicibus

flavis, illo puncto mediano fusco, elytris abbreviatis. Long. 9 millim. gd.

Hab. GuateMaLa, Senahu (Champion).

The head of this species is of the same shape and marked as in C. nagriceps, the sides

of the head in front of the eyes being whitish, and the colour extending into two spots,

from which the antenne take their origin. The thorax is scarcely so wide as the head,

and is, on the average, a little longer than wide, ochreous yellow, with an indistinct or

well-marked central spot. The mesosternum is, for the most part, white. The ventral

plates are broadly margined with yellow, excepting the anal valve of the male, which is

black. It is rather nearly allied to C. nigriceps, but well distinguished by the black

elytra, with only the tip yellow.

22. Chauliognathus emaciatus.. (Tab. V. fig. 17.)

Pallide lividus; capite nigro, infra et antice flavo; antennis, palpis, prothoracis disco, femoribus externe, tibiis

et tarsis nigris ; elytris paullulum abbreviatis. Long. 12millim. ¢ 2.

Hab. Guatemata, Capetillo, San Gerénimo (Champion).

The head is rather large, and as wide or wider across the eyes.than the thorax: some-

times the whole front is yellow; but more often the space immediately above the mouth

is black. The disk of the thorax is wholly black, but is indented by a yellow spot in

the centre of the base ; the margin is entirely yellow. ‘The scutellum is black. The

underside is wholly yellow in both sexes.

A Capetillo specimen is figured in the Plate.

23. Chauliognathus histrio.

Callianthia histrio, Dej. Cat. 8rd ed. p. 118 (sec. Sallé coll.).

Flavus; occipite, antennis, elytris (limbo toto excepto), alis, femorum apicibus, tibiis tarsisque nigro-fuscis ;

elytris abbreviatis. Long..10-11 millim. ¢ 9. |

Var. thoracis disco nigro-fusco. 9.

Hab. Mexico, Cordova,. Tuxtla (Sad/é).

Head yellow beneath and in front, the crown dull black ; prothorax im the male a

little longer than wide, usually with a wide depression in the centre of the base, some-

times with small discoidal spots; in the female quadrate, and with the disk sometimes

black, at other times yellow with the lateral depressions infuscate. Scutellum brownish,

with yellow apex.. Elytra short and acuminate, leaving quite one third of the apex

uncovered; the suture and margin yellow, the apex more widely so, their bases some-

times yellow, but rarely so. The apical valve in the male slightly infuscate.

This species is very like what I have received from Texas as “marginatus, Fab.,”

L 2

76 ‘ MALACODERMATA.

but has not the breast fuscous, nor the narrow, even thorax, with a broad black vitta,

of that species.

Section II. b. Elytra parallel or narrowed towards the apex ; not shortened, nor

lancet-shaped.

24. Chauliognathus terminalis.

Niger ; pectore, abdominis basi, prosterno, prothoracis angulis posticis, et elytris (triente apicali excepto)

flavis. Long. 12-14 millim. 6 9.

Hab. Nicdracva, Chontales (Belt); Costa Rica, Cache (Rogers).

Somewhat resembling C. dimidiatus, but narrower and more parallel. The head is

very long, black, piceous beneath. Thorax with the upperside of the pronotum black,

but more or less indeterminately fulvous at the base. Breast and first three segments

of the abdomen yellow; but the centre of the metasternum is black in some examples,

and in one the underside has all the paler parts fuscous, possibly owing to dis-

coloration. |

I have only seen three specimens, with the exception of an old one in my own |

collection.

25. Chauliognathus collaris.

Niger; prothorace rufo, suborbiculari, nitido, punctis duobus nigris; antennis corporis longitudine. Long.

12 milliim. ¢.

Hab. Muxico, Cordova (Sal/é).

Readily distinguished from any other species of the genus by the nearly totally black

colour, with the exception of the thorax the only parts which are not so being the

lateral edges of the ventral segments, which are yellow, especially the ones near the

base and their margins, which are extremely narrowly yellow. ‘The legs are long, and

the tarsi are longer than usual; the claws are yellow.

A single specimen in Sallé’s collection is all that I have seen.

26. Chauliognathus aterrimus.

Ater; tuberculis antenniferis, maculis minutis singulis in coxis anterioribus, et limbo ventrali anguste flavis.

Long. 11 millim. ¢.

Hab. Muxico, Puebla (Sailé).

A narrow parallel species, with the head moderately elongate, black, with the

exception of the spot at the insertion of the antennew. The thorax has the sides and

base margined and a little reflexed, the front nearly plain; in the two male examples

before me it is a little longer than wide, the margin scarcely shining. Flytra dull deep

black. Underside and legs totally black, the lateral margins of the abdominal plates

alone excepted ; the apical valvular one is quite black.

CHAULIOGNATHUS. 77

27. Chauliognathus scapularis.

Callianthia scapulata, Sturm coll.

Nigro-fuscus ; prothorace (punctis duobus nigris), plaga humerali, femoribus ad apicem, tibiisque flavis, abdo-

mine segmentis singulis basi fuscis flavo marginatis. Long.11 millim. @Q.

Hab. Muxico (Sturm, coll. Sallé).

- The coloration of the elytra of this species is common to a great number of Mexican

beetles both of this and of other families ; but this is not liable to be confounded with

any other ; for the shining yellow thorax with two black round dots placed one on each

side of the disk is only common to it and to C. collaris.

The shoulder-stripe extends rather more than a third of their length down the elytra,

and includes the whole callus and reflexed margin of the shoulder. ‘The antenne are

wanting in the single female specimen, with the exception of the first two joints, which

are black. ‘The apex of the elytra is very narrowly yellow; and they probably vary, as

other species of the genus do, in the amount of the black and yellow colours.

28. Chauliognathus morio.

Callianthia morio, Sturm coll.

Statura omnino Photini perelegantis, at aliquid major. Nigro-fuscus, opacus ; capite maculis duabus lateralibus

ante oculos, prothoracis limbo frontali et laterali et margine reflexo, elytris sutura et margine tenuissime

flavis ; antennis compressis, serratis. Long. 15 miliim. Q.

Hab. Mexico (Sturm, coll. Sallé).

Remarkably resembling some Photini, perhaps most an undescribed species of the

eroup to which my Photinus perelegans belongs.

The head is as long as in typical Chauliognathi; but the antenne are rather those of

Daiphron. I should not be willing to admit it into that genus, however, at present,

because the elytra are very parallel, and are long even for the present genus. The

thorax is subquadrate, with a well-marked central channel in the centre of the disk. The

scutellum and base of the elytra are fuscous. The pale margin begins immediately

below the humerus; it is faint at the apex. The suture is entirely pale. ‘The elytra

are finely coriaceous, rather more coarsely so at the base. The antenne are not more

than half the length of the body.

A single example only in Sallé’s collection, from that of Sturm.

29. Chauliognathus hastatus. (Tab. V. fig. 7.)

Nigro-fuscus ; prothoracis limbo elytrisque testaceis, his sutura latius post scutellum maculaque magna apicali

marginem vix attingente nigris ; abdomine segmentibus singulis (maris apicali excepto) flavo marginatis,

Long. 11-14 millim. SQ.

Var. elytris fuscis, plaga lata humerali ad medium vel ultra provecta testacea.

Hab. Mzxico, Capulalpam, Guanajuato, Orizaba, Puebla (Saldé), Alvarez Mountains,

San Luis Potosi, Hacienda de Bleados (Dr. Palmer), Jalapa (Hoge); GuaTemaLa, San

Gerénimo, Panima (Champion). |

78 MALACODERMATA.

The figure represents a female specimen from Guanajuato.

Head black, moderately elongate; antenne of the male nearly as long as the body ;

the head at their insertion has a yellow ring, but not completed in front. Thorax

quadrate, but narrowed towards the front, the entire margin reflexed, more distinctly

at the base and sides, and yellow, the base usually very narrowly so; disk opaque, with

a square shallow impression behind. Scutellum black, the apex sometimes yellow.

Elytra variable, sometimes fuscous black, with the shoulders. as far as the middle, and

the margin for two thirds, yellow, or with the suture broadly black near the scutellum,

narrowing to a point before or near the middle, where an apical spot commences, leaving

only the suture and margin narrowly yellow, the apex more widely so. The ventral

plates are yellow, spotted or banded with black at the base. The apical convex

segment in the male is black.

This appears to be one of the commonest species, at least in those localities where it

occurs in Mexico and Guatemala. It is represented in Texas by C. lambatus, Leconte,

from which it differs in its average larger size, the abdomen spotted or ringed with

black, &c. Out of a very large series of C. hastatus which I have seen there is none

with a quite yellow base to the abdomen, as my exponent of C. limbatus has.

Subfam. THZLEPHORINT.

DISCODON.

Unguiculi externi maris fissi. Caput postice constrictum ; oculi mediocres, subglobosi, prominentes ; antennarum

articulus secundus tertio multo brevior. Prothorax margine haud integro, maris lateraliter minute

inciso, feminze ante angulos posticos sinuato-emarginato. Abdominis segmentum ventrale apicale maris

bilobatum, subapicale angulariter emarginatum ; pygidium convexum.

This genus is allied to Podabrus in the form of the head and in the general appear-

ance; but the notching of the sides of the thorax is a character I have not seen in any

species of that genus, and, taken with the division of the apical segment of the male,

indicates some affinity with the Silini. The notch is very small, and is not situated in

the same position in the different species: in D. erosum it is below the middle, and

viewed from above appears only as a small indentation in the acute edge of the margin ;

but in D. plicatum the notch appears to be due to the flattening and extension of the

margin where it commences to be slightly reflexed in front.

The apical segment of the abdomen of the male is also very different in structure from

that of Podabrus and Telephorus. This plate, which appears to be the seventh, is

divided for its whole length, thus having two lobes slightly inclined to each other, the

segment preceding it being angularly gable-shaped and cut out. The fission of the

claw is analogous to that of Podabrus; but it is here only the external claw, and that

only in the males, that is divided.

DISCODON. 79

1. Discodon erosum.

Nigro-fuscum ; capite, pedibus basi, prothorace et scutello flavis ; genubus, tibiis et tarsis fuscis. Long. 10-11

millim. ¢ Q.

Var. capite nigro, ore et epistomate flavis.

Hab. Mexico, Cordova, Toxpam, Cuernavaca (Sai/é).

Head and thorax clear yellow and spotless; the antenne about two thirds of the

length of the body, fuscous, the extreme base sometimes reddish ; palpi pale at the

base, the apical joints of the maxillary pair elongate hatchet-shaped, of the labial

triangular. Thorax shining, as wide as, or, in the female, wider than long, rounded in

front; the basal margin slightly raised: on each side in the male is a minute notch or

interruption of the margin. The elytra are greyish fuscous. The centre of the sterna,

the cox, trochanters, and femora, excepting only their extreme tips, are reddish

yellow. The abdomen is dark fuscous black ; in some specimens only the angles of the

ventral segments are marked with ochreous.

2. Discodon plicatum.

Nigrum, nitidum, ore flavo ; prothorace glabro, aurantiaco, macula oblonga discoidali nigro-picea. Long. 10-11

milliim. gQ.

Hab. Muxico, Cuernavaca, Guanajuato (Sallé); GuaremaLa, Cerro Zunil, Panima,

Duefias, and near the city (Champion).

A species in its general appearance very much resembling rather small specimens of

the European Telephorus rusticus, also not unlike T. picticollis (described hereafter) and

other species. It may, however, be recognized by the shining head and thorax, by the

oblong black spot on the latter, which in the Mexican specimens is continued till it

becomes a complete vitta from the front to the base, by the black legs and underside,

and, of course, by the generic characters. The claws are red; the anterior pair are

furnished with a triangular membranous lobe on the inner side, and are not split; the

intermediate and posterior ones have the outer claw of the male split, and with its

outer division shorter and more bent than the inner one.

3. Discodon incisum.

-.. Flavum ; antennis, palpis pedibusque (basi exceptis) nigris. Long.11 millim. ¢ 9.

. .. Var. femoribus fere totis, tibiisque testaceis.

Hab. Guatemata, Duefias, San Gerénimo, Cerro Zunil (Champion).

Very much of the size and colour of Telephorus bicolor, Fab. Body entirely testa-

ceous; antenne fuscous or black, the basal joint usually in part yellow. ‘Thorax

subquadrate, in the male a little narrower at the base than above the notch, the latter

situated about one third from the hind angles, which are acute ; base finely reflexed ;

disk with a shallow double impression. Underside, with the coxe, trochanters, and

80 MALACODERMATA.

base of the femora yellow. The pygidial plate is strongly dome-shaped, with its margin

reflexed so as to meet the bifid ventral segment which closes the anal aperture. This

structure is not so much developed in D. plicatum, where the pygidium is flatter. In

the female the apical ventral plate is broad and angularly notched on each side of the

middle, the thorax is wider behind than in front; the sides are only very slightly

sinuate; and this sex may, of course, be distinguished by the claws being all simple.

The specimens from Cerro Zunil have the sides of the thorax in the male with a

wider and deeper excision ; the elytra have the middle of their margins narrowly black ;

and the legs are paler.

4, Discodon nigripes.

Nigrum ; capite, prothorace, scutello elytrisque flavis. Long. 93-11 millim. dQ.

Hab. Guatemata, Las Mercedes (Champion).

Head yellow, a little clouded above, shining ; antenne and palpi black; tips of the

mandibles pitchy. Thorax shining, disk uneven; lateral notch in the: male small,

obliquely directed forwards in the middle; the margin in the female only a little sinuate.

Mesosternum yellow. Legs, postpectus, and abdomen black. Pygidium of the male a

little convex ; apical ventral segment of the female rounded, not notched at the apex.

5. Discodon carbonarium.

Atrum ; capite et prothorace nitidis, ore obscure piceo. Long. 8-8} millim. ¢ Q.

Mas prothorace medio lateraliter constricto, segmento apicali ventrali fisso.

Hab. GuateMata, Quiche Mountains (Champion).

The almost totally black colour of this species will distinguish it from any other of

the genus except D. melancholicum, the only parts which are not black being the mouth,

which is obscurely pitchy, and the membranous portions exposed between the prosternum

and breast, which are yellowish. The head, as in many of the species of the genus, is

more contracted behind in the male than in the female; but the thorax covers nearly all

but the crown. The constriction of the thorax in the male is similar to that of D. inciswm

and D. marginatum, in which the margin is not distinctly notched.

About eight specimens, of which two are males, have been captured by Mr.

Champion.

6. Discodon marginatum.

Testaceum, subnitidum; prothorace disco infuscato, foveola lata impresso; elytris fusco-piceis, marginibus,

sutura strigaque humerali rufis; antennis fuscis, articulo primo rufo. Long. 10 millim. ¢ 9.

Mas prothoracis limbo laterali ante angulos posticos contracto vix edentato, segmento apicali ventrali fisso.

Hab. Guatemaua, Calderas, Duefias, San Gerdénimo (Champion).

Easily separable by its colour from any other of the genus, and also differing in being

of a soft texture, as shown by the shallow depression in the centre of the thorax, which

DISCODON. 81

is, I think, due to shrinkage and the tendency to shrivel in the elytra. The head has

usually a dark spot on the crown in the female. The thoracic spot is oblong. The

elytra widen a little towards the apex; the humeral vitta is not very distinctly separated

from the pale margin, but sometimes runs down the discoidal nervure ; the softness of the

elytra does not admit of the darker and pale portions being ever very distinctly marked.

Seven specimens have been sent, three of them males.

7. Discodon vitticolle.

Fuscum ; capite nigro, ore pedibusque piceis, prothorace lete rufo, nigro-vittato ; elytris piceis, apud humeros

et externe dilutioribus. Long. 7-8 millim. ¢ 9.

Mas prothoracis margine laterali plicato-interrupto; unguiculis anticis internis lobo triangulari ad basin

instructis, intermediis et posticis externis fissis ; abdominis segmento ventrali apicali fisso, apice exciso.

Hab. Guatemaua, Purula, Tamahu, Chacoj (Champion).

Var. elytris nigro-fuscis, vitta pallida ab humero usque ad apicem fere provecta.

Hab. Mexico, Juquila (Boucard, coll. Sallé), Cordova (Hége); GuateMALA, Zapote

(Champion); Costa Rica (van Patten).

Variable in the depth of colour of the elytra, and in the more or less vividly tinted

thorax, this insect in all its forms resembles species of the genera Photinus and

Photuris. It is perhaps best distinguished by the bright red thorax, with a narrow

black vitta from the base to the front, or nearly reaching it. The head is black, with

the chin and mouth pitchy. The bifid apical segment of the male is more deeply cut

out at the apex than in other species of the genus.

8. Discodon flavicolle.

Atrum ; epistomate, ore et prothorace albido-flavescentibus ; capitis basi picea. Long.11-12millim. ¢ 9.

Mas prothorace margine laterali tenuiter oblique inciso; unguiculis anticis lobatis, intermediis et posticis fissis.

Hab. Mexico, Cordova (Sallé, Hoge), Jalapa (Hoge).

Smoky black, a little shining above. Head pitchy or rufous at the base, crown

black, front and underside yellow ; antenne and palpi fuscous. Thorax shining, pale

yellow; lateral margin obliquely and finely notched in the middle in the male. Scu-

tellum and humeral callus yellow.

This insect almost precisely resembles Photuris lugubris, already described. The

absence of any white abdominal segments will afford a ready distinction.

9. Discodon melancholicum.

Aterrimum ; prothorace nitido, quadrato suborbiculari; elytris rugose coriaceis. Long. 9-10 millim. g¢ 9.

Hab. Mexico, Leon, Guanajuato (Dugés, coll. Sallé), Parada (Boucard, coll. Sallé).

Entirely black, excepting that in one example the thorax has the sides pitchy red.

The head is less constricted behind than is usual in the genus; and the insect has very

much the appearance of a true Telephorus, being, indeed, of the size and colour of the

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, August 1881. M

82 MALACODERMATA.

European 7’. tristis. The male, however, has the sides of the thorax notched near the

middle, and the apical segment divided ; the external claws are also split, though only

at their extreme apex, and the fission is not easily seen with an ordinary lens. The

coriaceous sculpture of the elytra is a good distinctive character.

From D. carbonarium the thorax hardly narrower in the male than in the female,

with a central notch, will at once separate it.

10. Discodon triste.

Atrum, subopacum ; capite et prothorace nitidis, hoc lateribus latius albido-flavis (maris medio) tenuiter oblique

incisis; elytris rugose subcoriaceis. Long. 63-8 millim. 3.

Mas prothoracis margine laterali tenuiter plicato-interrupto ; unguiculis anticis internis lobo subtriangulari,

intermediis et posticis externis fissis.

Hab. Mexico, San Luis Potosi, Hacienda de Bleados (Dr. Palmer), Guanajuato (Dugés,

coll. Sallé); GuateMALA, Duefias, Capetillo (Champion) ; Nicaragua, Chontales (Janson).

Var. Prothoracis lateribus rufis. |

Hab. GuatTEMALA, Quiche Mountains (Champion).

Entirely black, with the exception of the thorax, which has its sides broadly pale

yellow, inclining to red near the middle. The disk is very shining and black; this

discoidal patch increases in width towards the base, so as sometimes to form a triangle ;

or it is widened behind, with an indistinct spot on each side near the hind angles, which

is less intense. The angles and base itself are often pale; but the black usually extends

to the base and front in the middle.

The mandibles are pitchy, lighter in colour at their bases, and darker at the tips ;

the rest of the head, body, and legs is entirely black. The elytra are almost rugose,

with very obsolete indications of strie.

This species is evidently a very near ally of D. melancholicum, and perhaps ‘not

specifically distinct. ‘Some specimens which I think belong to the same species are

pitchy; and some of those from Chontales have the legs partly pitchy red; this is

probably due to their having been captured soon after having quitted the pupal state.

11. Discodon normale. (Tab. V. fig. 20, 2 Telephorus; Tab. VI. fig. 20, ¢ .)

Nigrum, opacum ; capite et prothorace subnitidis, hoc lateribus late flavis, puncto subdiscoidali utrinque haud

distincto, illo fronte flava, ore fusco. Long. 10-11 millim. ¢ 9.

Mas prothoracis disco infra medium incisura sat profunda fere recta; unguiculis anticis internis et intermediis

externis lobo membranaceo instructis, posticis externis fissis.

Hab. Mexico, Cuernavaca, Oaxaca, Capulalpam, Juquila (Boucard, coll. Sallé),

Mexico city (Dr. Palmer), Jalapa, Cordova, Cerro de Plumas (Hoge); GuatEma.a,

Capetillo (Champion).

Var. elytris sutura margineque flavis.

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

The figure on Plate V. represents a female specimen from Capetillo; that on Plate

VI. a male from Mexico.

DISCODON. 83

Rather variable both in comparative width and colour, but generally distinguished

among the Central-American Telephoride by the broad thoracic vitta, with a short

lateral transverse branch below the middle of the disk, which at times appears like a

spot in the broad yellow margin, united to the black of the disk. In most of the

specimens which I refer to this species the hind angles of the thorax are distinct and

nearly right angles; in some, however, they are more obtuse and rounded. The

external resemblance to the European Telephorus obscurus, Linn., is rather striking.

This species, with several others which I at first referred to Telephorus, has the

middle claws of the male not finely split, but with a lobe very similar to that of the

front pair, while the hind pair have the claws with the lobe produced so as to give the

idea of their being bifid. The apical segment of the abdomen iscleft as in other species ;

the two lobes have their suture somewhat open at the base. In the specimens with

pale margins to the elytra the sides and apex of the abdomen are often yellow.

In some specimens from Juquila the elytra are ampler than usual, and the hind

claws of the male are less distinctly lobed; but I do not think they pertain to a

distinct species.

In some remarkably stout and robustly-built female specimens from Cuernavaca,

Oaxaca, and other parts of Mexico the apical segment is apparently contracted at the

apex, and with the pygidial plate longitudinally compressed (perhaps only in drying),

so as to form a sort of gutter. There is a variety of this stout form which has the

thorax and base of the legs and greater part of the abnomen, and in one example even

the elytra, yellow. This latter is a single specimen taken at Cerro de Plumas by

Hoge.

12. Discodon perplexum.

Nigrum ; elytris subopacis, ampliatis; prothorace aurantiaco, nigro-vittato; abdomine flavo, basi fusca. Long.

15 millim. 4.

Mas prothoracis margine juxta angulos posticos incisura sat profunda ; unguiculis internis anticis et externis

intermediis lobatis, posticis externis fissis.

Hab. Mexico, Misantla (Hége).

There being only two male specimens which, at present, I can refer to this species, I

think it may possibly prove to be the male of the species described by me as Telephorus

picticollis. It is larger, and the elytra especially: wider, than any Discodon at present

described. sab:

The head is yellowish in front; but the apex of the mandibles, the palpi, and mouth

are dark fuscous. The thorax has no angles in front, the margin being rounded to

meet the sides; the hind angles are distinct, but not sharp, and, in the male, are

detached from the lateral margin by a rather deep incision. The abdomen has all the

seements margined, and the three last entirely yellow, the apical one being divided, the

lobes being closely joined, a little open at the apex. The elytra are finely coriaceous,

M 2

84 MALACODERMATA.

more inclined to be granulose than in the female specimens which I refer to Telephorus

picticollis.

13. Discodon cleroides. (Tab. V. fig. 18, Telephorus.)

Atrum ; elytris subopacis, capite margine frontali et mandibulis basi albidis; prothorace transverso, subqua-

drato, limbo toto et plaga discoidali subtriangulari nigris; antennis corporis vix dimidio longitudine

eequalibus, leviter serratis. Long. 9-10 millim. g 9.

Mas prothoracis margine laterali medio incisura sat profunda, unguiculis posticis externis fissis.

Hab. GuateMaua, Duefias, Purula (Champion).

The general appearance of this insect is almost exactly that of a species of Cleride ;

the form, evenly narrowed before and behind, the short serrate antenne, the colour of

the thorax (black, with an oblique red vitta on each side, which leaves the margins

black), are all repeated, and are similar to the general features of several species of

Photinus as well, so that the deception in nature must be perfect. The species appears

to vary a little in size and in the width and form of the black discoidal patch of the

thorax. Thus one variety will resemble some one species of Photinus, while another

may be more close in general facies to another.

The abdomen has one or two apical segments, and the margin of some of those

preceding, whitish. ‘The anterior internal claw of the male has a lobe at the base; but

while the middle pair seem to have the same claw thickened, it is not so widened. The

hind claw is thickened and finely bifid.

The figure in the Plate is taken from a female from Duefas.

14. Discodon photinoides. (Tab. V. fig. 19, Telephorus.)

Nigro-fuscum ; capite nigro, epistomate flavo ; prothorace flavo, plaga discoidali subtriangulari nigra; elytris

fuscis, margine laterali et sutura tenuiter flavis. Long. 9-11 millim. ¢ 9.

Mas prothoracis margine laterali tenuissime plicato-interrupto; unguiculis anticis internis basi lobatis,

intermediis et posticis externis basi incrassatis haud fissis.

Hab. Guatemaua, San Gerdénimo, Duefias (Champion).

Var. elytris totis nigro-fuscis.

Hab. GuateMALa, Duefias (Champion).

There appear to be several species closely resembling the present one, and whose

discrimination depends on the observation of differences in the structure of the claws of

the males. Nevertheless, if these are attended to, there will, I think, be found other

minute differences in the average size, the more or less parallel form, the shape of the

thoracic discoidal patch, and the form of the male ventral segments and their colour.

This species has the extreme front of the head yellow. The thorax is smooth and

even, with a somewhat triangular patch on the disk. The elytra are rather parallel, a

little widened in the female, and attenuated towards the apex. The abdomen is wholly

dark fuscous; in only one example is it at all paler towards the apex.

DISCODON. 85

In the male the ségment preceding the apical one is angularly emarginate, the apical

cleft (as it is, indeed, in all species of Discodon) not much raised. The absence of fission

in the hind claw is not of generic importance, being but a secondary character ; but it

will, I think, indicate a separate section. ‘The inner point where the claw appears to

be divided is, I think, an independent structure, analogous to the “ membranous lobe ”

on the front or middle pair, which is sometimes of a tooth-like shape, and reaches in

some cases near to the tip of the claw.

The figure represents a female from San Geronimo.

15. Discodon dubium.

Nigro-fuscum ; capite nigro, epistomate flavo ; prothorace flavo macula oblonga vel disco toto nigro-piceo ;

elytrorum marginibus et sutura abdominisque margine tenuiter flavis. Long. 9-11 millim. dQ.

Mas prothoracis margine laterali infra medium incisura tenui sat profunde fere recta; unguiculis posticis

externis fissis.

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

The principal points in which this species shows any difference from D. photinoides

(apart from the male characters) are that the thorax is not so evenly convex and the

discoidal patch is rather of an oblong shape. The abdomen is margined ; and sometimes

the angularly excised subapical plate has its apical margin whitish yellow.

16. Discodon luridum.

Nigro-fuscum ; capite, antennis, tibiis tarsisque nigris, epistomate flavo ; prothorace et elytris sordide flavis,

his amplis, illo disco piceo; abdominis margine et maris segmento apicali pallidis, Long. 11-12 millim.

dQ.

Mas prothoracis margine laterali incisura sat profunda paullo ante angulos posticos; unguiculis externis basi

lobatis, posticis vix fissis.

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

The section to which this species belongs have the elytra soft, considerably widened

below the middle, and generally shrivelled in drying; but their form is quite recogni-

zable. ‘The females have the elytra as wide as the males. The external claws of the

male in D. luridum are all furnished with the usual membrane at their base; but in

the hinder pair this projects as a tooth-like plate nearly to the length of the claw;

thus the claw when viewed from its back appears bifid. ‘The present species is easily

recognized by its brownish-yellow elytra and pale yellow thorax, with a broad pitchy-

black vitta, narrowing towards and not often meeting the front margin.

The apical ventral plate in the male has its two lobes inclined to each other, and

much raised where they meet at the apex.

17. Discodon lugubre.

Aterrimum, opacum ; elytris amplis; capitis fronte prothoracisque epipleuris lete flavis; antennis basi lati-

usculis serratis, ad apicem attenuatis. Long. 10-12 millim. ¢ 9.

86 | MALACODERMATA.

Mas prothoracis margine laterali incisura sat profunda paullo ante angulos posticos ; unguiculis anticis internis,

intermediis externis basi lobatis, posticis vix fissis.

Hab. Mexico, Cuernavaca, Durasnal (Sad/é).

Similar in most of its characters to D. luridum, this species is distinguished by its

black colour, the front of the head and the reflexed margins of the prothorax being the

only yellow parts. .

The elytra are subcostate ; and the antenne (which are about half the body’s length)

are more compressed and widened from the third to the sixth joint than is usual in

this genus.

18. Discodon histrio. (Tab. V. fig. 22, 3.)

Atrum ; capite prothoraceque nitidis, hoc epistomate flavo-maculato, illo lateribus flavis; elytris subcostatis,

humeris flavo-guttatis. Long. 9-10 millim. 9.

Mas prothoracis margine laterali per sulcum obliquum leviter emarginato; unguiculis anticis internis lobatis,

intermediis et posticis externis fissis.

Hab. GuateMa.a, Duefias, Capetillo (Champion).

Head nearly black, with only a few yellow speckles between the antenne ; the latter

are nearly filiform, only a little thicker from the third to about the fifth joint. The

thorax is rather small, narrowing a little in front. The discoidal black patch reaches

from the base so as just to touch the front, where it is narrower. ‘The elytra have a

very distinct shoulder-stripe of orange colour occupying the raised callus, and three

raised nervures. The combined effect of these characters is to render this species very

like a Lycus; and it adopts the pattern so very common among the small Coleoptera of

the district it inhabits. It is perhaps most close in resemblance to Calopteron

muimicum.

The specimen figured is a male from Capetillo.

19. Discodon difficile.

Atrum ; epistomate, ore et prothorace albido-flavescentibus. Long. 10-11 millim. <6 9.

Mas prothoracis margine laterali infra medium tenuissime oblique inciso; unguiculis anticis internis basi

lobatis, intermediis et posticis externis basi incrassatis, haud fissis.

Hab. Mexico, Juquila (Boucard, coll. Sallé), Guanajuato (Dugeés, coll. Saillé).

Extremely like D. flavicolle ; but, in addition to the male not having the middle or

hind claws split, the scutellum is black, the thorax is more transverse and not so much

rounded in front, its disk is mottled with darker yellow spots, and its margins are not

reflexed, nor with a basal deeply impressed line. The elytra are subrugose, and not

shining as they often are in D. flavicolle.

I have only seen two male and one female specimen at present.

DISCODON. 87

20. Discodon bivittatum.

Flavum ; occipite, prothoracis vittis duabus tumidis, elytris (margine et sutura exceptis), antennis, palporum

articulis ultimis, tibiis, tarsis, pectore et abdomine maculis ventralibus nigro-fuscis. Long. 8-10 millim.

3 Q.

Mas abdominis segmento ultimo ventrali partito ; unguiculis anticis internis, intermediis et posticis externis

lobatis, haud fissis.

Hab. Mexico, Oaxaca, Yolos (Boucard, coll. Sallé) ; Cordova, Playa Vicente (Hoge).

This species reminds one of Telephorus bilineatus of Say, which is found in the

United States; it is also not unlike 7. guatemalensis (described hereafter in the present

work). From the former the pale margins and suture of the elytra, and from both the

curiously raised black vittee of the thorax (in addition to the male generic characters)

distinguish it. The crown and base of the head are black and not shining; the

antennee and terminal joint of both pairs of palpi are black. The thorax has its

margin finely reflexed, less so in front; it is subquadrate in the male, wider with more

rounded sides in the female. The elytra exhibit two or three raised lines; but these

are usually little evident except in the female. Coxe, trochanters, and femora yellow ;

sometimes the hind thighs are infuscate above. The claws are yellowish.

21. Discodon oppositipunctum.

Pallide flavum; prothorace punctis duobus(uno in medio marginis frontalis, altero basali ante scutellum), antennis,

palpis, tibiis et tarsis, abdominis segmento ultimo elytrisque nigro-fuscis. Long. 7-9 millm. gQ.

Mas prothoracis disco antice oblique constricto et foveolato, margine vix interrupto; unguiculis posticis fissis.

Hab. Mexico, Cordova, Toxpam (Sallé).

_ Head yellow; eyes prominent, especially in the male; antenne greyish fuscous, with

paler base and articulations. Thorax subquadrate, rounded in front, hind angles right,

disk uneven ; constricted in the male, and with more prominent hind angles; a small

spot close to the front margin in the middle, and another on the middle of the base ; at

times a spot occupying two lateral fovee is faintly visible. Scutellum yellow. FElytra

greyish fuscous, finely punctured. The legs are yellow, with the exception of the knees

narrowly black, and the tibie and the tarsi of the same colour. The whole underside

is yellow, excepting the last segment of the abdomen in both sexes.

Four specimens are in M. Sallé’s collection.

22. Discodon purpurascens. (Tab. V. fig. 23, 2 Silis 2)

Nigrum ; capite et prothorace rufis, hoc vitta mediana, illo occipite nigris ; elytris rufis, subpurpureis, obsolete

pubescentibus; antennis corpore brevioribus, vix serratis. Long. 10-12 millim. 4g 9.

Mas prothoracis margine laterali medio oblique minute inciso ; unguiculis anticis internis basi lobatis, inter-

mediis et posticis externis fissis.

Hab. Costa Rica (van Patten), Cache (Rogers).

When I had only seen a single female of this species, which is the specimen

taken by Mr. Rogers, shown in the Plate, I thought it would prove to be a Stlis; a

88 MALACODERMATA.

second specimen, which is much more obscure in colour, but which I believe is, with-

out doubt, a male of the same species, is clearly congeneric with the preceding

insects.

This specimen has lost its pubescence; and the elytra are subcoriaceous, smooth at

the base, opaque at the apex; they widen gradually from the base. The thorax is

smooth, its margins not much reflexed; near the hind angles (which are acute) are two

shallow fovee. In the female the sides narrow towards the front. The head is blackish

on the crown; the mandibles and mouth are blackish; the palpi, antenna, legs, and

body entirely black.

23. Discodon flaccidum.

Obscure piceum; prothorace sordide rufo vel flavo; elytrorum marginibus suturaque et pedibus sordide

testaceis; capite, antennis tarsisque nigris. Long. 6—7 millim.

Hab. GuatEMALa, Chiacam, Cubilguitz, Teleman (Champion).

The soft integuments, parallel elytra with pale margins, pale legs and rufous or

pale horn-coloured thorax with pitchy disk, give this species quite the appearance of a

small Lampyrid of the genus Photinus or Photuris, e. g. Photuris mollis, to small speci-

mens of which it assimilates in size. The sides of the thorax are minutely indented.

I am not able at present to indicate the male characters with certainty; but I have

little doubt the specimens with narrower thoraces and with the sides more acutely

notched are males. The antenne do not exceed half the body’s length. The elytra are

finely and sparingly pubescent.

Seven specimens are all I have seen.

Obs. The claw described as the internal one of the front tarsi, is really so only

when the leg is directed forwards; it is homologous with that which is the external

one of the middle and hind feet.

TELEPHORUS.

Telephorus, Schiffer, Element. Ent. t. 123 (1766) ; Olivier, Ent. ii. 26; Degeer, Ins. iv. 60.

Cantharis, Linn. Syst. Nat. 11. p. 647; Fab. Ent. Syst. 1. p. 216.

It would not be within the scope of this work to enter upon a discussion of the

involved synonymy, or of the many subdivisions which have been attempted of the

genus Telephorus.

Kirsch has described six species of Telephorus from Bogota, which are clearly

congeneric with the above (Berl. ent. Zeits. 1865, p. 80 &c.).

The genus is here adopted as it is now generally received in modern works on

European species. I should retain Rhagonycha, Eschsch., as a good natural division ;

but I have not at present found a Central-American representative of this form,

although, as there are fourteen species in Mr. Crotch’s list of the Coleoptera of

TELEPHORUS. 89

America north of Mexico, it is not impossible it may occur. The fission of the claw

of Rhagonycha taken alone is, after all, only analogous to what occurs in Photuris

among the Lampyride, and is found with various modifications in Podabrus, Discodon,

and in other genera, attention to which is much needed. The character by which

Telephorus proper is defined best is by the apical ventral segment in the male being

neither valvular nor split, but simply an ovate small plate covering the genitalia.

Telephorus in its widest sense, then, is found all over the world, and numbers at present

about 350 species. It is, however, as a glance at the Munich Catalogue will show, espe-

cially the genus of the northern temperate zone, and is quite as abundant in New-World

as Old-World forms. Forty species from temperate North America are in Crotch’s list.

Dr. Leconte has recently published a synopsis of the species found in the United

States (Trans. Amer. Ent. Soc. ix. pp. 50-55, March 1881), in which the number of

Telephori, inclusive of Khagonycha, is given as thirty-five. Polemius, which was

included by Crotch, is evidently the representative of my genus Discodon, but differs

from it in not possessing the lobes or fission of the claws of the males.

It may be observed I am unable to give the sexual distinction of the four species I

have retained here in the genus. ‘The number of specimens are few, and, it is probable,

will have to be removed to other genera when their males have been observed. At

present they must be regarded as unclassified.

1. Telephorus lampyroides. (Discodon?) (Tab. VI. fig. 15.)

Fusco-piceus, nitidus; prothorace transverso, quadrato, aurantiaco, glabro, macula discoidali basali picea ;

elytris sordide flavis, fusco-infuscatis, postice paulo ampliatis. Long. 16-17 millim. 9°.

Hab. Costa Rica, Rio Sucio, Volcan de Irazu (Rogers).

Var. elytris piceis, vitta in humeris incipiente margineque pallidis,

Hab. Guatemata, Cerro Zunil (Champion).

Head pitchy, shining, reddish at the base ; antennz fuscous, of moderate length, not

reaching the middle of the abdomen ; palpi fuscous, apical joints hatchet-formed, but

not strongly so, and obliquely truncate. The width of the thorax is nearly or quite

twice its length ; it is very shining, the disk and sides evenly elevated, the base narrowly

reflexed. Its colour is a clear orange-yellow ; in the centre of the base a square pitchy

black spot, more or less continued across the disk, but not reaching the front. The

scutellum, breast, legs, base, and apical segment of the abdomen are dark fuscous.

The elytra are rather dull, only a little shining at their bases, of a dull horn-colour,

clouded in the centre with fuscous.

The variety from Cerro Zunil has the elytra darker, with a central pale vitta

extending from the humerus to within about one third from the apex, and the external _

margin pale. The specimens all appear to be females, from the broad apical segment

of the abdomen, which is always fuscous with paler margins.

The species, especially the variety, bears a very striking resemblance to Lampyride

of the genus Photinus, as, for example, to P. congruus and P. gliscens.

BIOL. CENTR.-AMER., Coleopt., Vol. IIL, Pt. 2, October 1881. N

90 MALACODERMATA.

2. Telephorus rugipennis.

Griseo-niger, subnitidus, subtus flavus ; epistomate, prothorace postice pedibusque basi rufo-testaceis ; protho-

racis disco postice fossa haud profunda; elytris subrugose fortiter punctatis, lineis duabus subelevatis.

Long. 64-73 millim.

Hab. Guatemata, Zapote (Champion).

Head narrowed and rounded behind; mouth, mandibles, palpi, and base of the

antenne: pitchy red. Apical joint of the maxillary palpi triangular. Thorax suborbi-

culate, the margin a little reflexed, hind angles a little acute and turned out, the base

sinuate ; immediately before the centre of the base is a squarish shallow fossa, which,

with the front half of the thorax, is black. Underside yellow, with the exception of

the breast, which is leaden black, and a cloud on the middle of each ventral plate.

The coxe and femora are pale yellow; the knees, tibie, and tarsi dark. ‘The antenne

reach a little further than the hind coxe. There are only three specimens which agree

with this. The rough elytra and peculiarly coloured thorax sufficiently distinguish it ;

but I am not able to determine the sex of these specimens.

8. Telephorus mimetus. (Si/is?)

Niger, subopacus ; ore, epistomate et mandibulis, prothoracis lateribus calloque humerali rufis. Long. 6 millim.

Hab. Guatemata, Zapote (Champion).

Extremely like Stlis nigrita, but with the head of a different form, more exserted,

and with smaller eyes, which are not so globular. The antenne are black, scarcely

reaching the hind coxe. The thorax is narrower than in S. nigrita, and with the

sides bisinuate as in the female S. hematodes &c.; the hind angles are acute and a

little projecting outwards; the disk is opaque, uneven, with a wide shallow depression

in the centre of the base. The elytra are opaque black, with only the humeral callus

red; there are obsolete indications of striae, and very obsolete puncturing.

Two specimens are all I have seen. In size and colour this insect also exactly

resembles various Platerotes of the striatus group, some Caloptera, and a variety of

Silis varians. The prominent trapezium-shaped head with red jaws and the form of

the thorax are the best general distinguishing characters.

4. Telephorus comptus.

Niger, subopacus ; prothorace transverso, late rufo, disco nigro, inequali, postice tuberculo duplo, lateribus

reflexis, fortiter rotundatis, angulis posticis subrectis, minute productis; antennis compressis, serratis, ad

apicem attenuatis. Long. 9 millim. 9.

Hab. Guatemaa, San Geronimo (Champion).

There are only two specimens among Mr. Champion’s collections, which agree in

having a decidedly transverse thorax with reflexed margins, the disk uneven, and with

a double tubercle, somewhat in the manner of Discodon bivittatum, behind. ‘The head

is squarish, the mouth and middle of the underside being pale; it is small for the size

of the insect. The antenne reach about to the posterior coxe; they are entirely black.

SILIS. 91

The sides of the thorax are much rounded in the middle, narrowed a little in to the

base, the hinder angles being turned outwards; the base and front are nearly straight ;

but the front angles are quite lost.

Both the specimens being females, it is impossible finally to decide on the genus of

these specimens; but in form they approach some Discoda. The underside is black ;

the apical segment is more shining than the rest, but is simply truncate, or has its apex

a little sinuate, and presents no especial character.

Subfam. SZZLINT.

This group corresponds to the “ Siliaires” of Mulsant. At present I adopt it only

for such genera as have the thorax with notched or deeply lacerated sides in one or

both sexes, the hind angles cut away or in some mode defective in the males, the

antenne more or less serrate, and the claws simple or only with a small laminar

enlargement near the base of the outer ones.

A more extended examination of African and Eastern forms will, I think, show that

the longitudinal division of the apical ventral segment of the males is a character

of the highest importance in the formation of natural divisions of this family. In this

respect the Central-American species of Sil/és are obviously allied to my genus Discodon

and to Leconte’s genus Polemius, which only differs from it in not having split claws.

And if this be taken as indicating their true affinities, there are representatives of the

Silini in Africa, Madagascar, Sumatra, and China.

SILIS.

Silis, Latreille, Régne An. ed. 2, p. 471 (1829).

Ditemnus, Leconte, Class. of Col. of N. Am. p. 189.

I have been very much in doubt as to the limits to assign to this genus; and I now

include in it only such insects as in the males have the thorax with some incision or

sinuosity near the hind angles, and at the same time have the last abdominal plate

cleft and simple claws. Leconte’s genus Polemius (Lacord. Gen. des Col. iv. p. 359 ;

Trans. Ent. Soc. Amer. ix. p. 55) approaches nearer Discodon; but I have not yet

seen it.

Two species of Silis are known in Europe. About twenty other species are referred

to it from Eastern Asia, the United States, and South America.

Section I.a. Maris prothorax juxta angulos posticos vel sinwatus. vel excisus.

1. Silis lycoides. (Tab. V. fig. 21.) 7

Atra, opaca; prothoracis lateribus humerisque flavis: elytris fortiter costatis ; antennis medio incrassatis,

serratis. Long. 9-10 millim. <¢? @.

Mas? prothoracis lateribus antice angustatis, trisinuatis.

Femina prothorace latiore, lateribus rotundatis, ante angulos posticos minute sinuato-excisis.

N 2

92 MALACODERMATA,

Hab. Mexico, Jalapa, Cordova (Hége); Guatemata, San Gerénimo, Capetillo,

Duefhas, Cubilguitz, Purula (Champion).

The figure represents a specimen from San Gerdnimo, probably a male.

Head punctured, rough, yellow, with black crown, sometimes only a black spot;

narrowed behind, with prominent eyes. Thorax usually roughly punctured, and with

a few indistinct tubercular swellings on the back of the disk, smoother in the female.

The male (?) has the sides with indistinct front angles, between which and the hind

angles are two projections, the hind angles themselves being acutely turned points.

The elytra, especially in the male (?), are tricostate, with thickened sutures and margins,

and strongly elevated shoulders as well; the yellow of the shoulder is occasionally

extended over their base, but always leaves the suture black. The interstices between

the cost are finely rugose. I have some doubt about the sex of these specimens; for

in none of the examples have I been able to observe a divided ventral segment. This

circumstance gives rise to doubts also as to the genus. The resemblance to some

Lycidz, especially to Calopteron ichnoides and mimicum, as well as to Discodon histrio

and. to some other Telephoride, is so extraordinary that they may readily be con-

founded even after careful comparison.

2. Silis varians. (Tab. VI. fig. 1, var.)

Nigra ; capite et prothorace flavis, hoc vitta tenui, illo supra plus minusve nigris ; elytris flavis, triente apicali, in-

terdum sutura etiam oblique nigris ; antennis compressis, subserratis, coxis pallidis. Long. 8-9 millim. g 9.

Mas prothorace angulo posteriore minute oblique exciso ; unguiculis anticis et intermediis internis, posticis

externis, lamina parva instructis; segmento ventrali apicali fisso.

Femina angulo posteriore minute exciso.

Hab. Mexico, Toxpam, Tuxtla (Sallé) : GuaTEMALA, Vera Paz, Chacoj, San Isidro,

San Juan, Teleman, San Joaquin, Panima, La Tinta, Tactic, Duefias, Zapote

(Champion).

Var. elytris flavis.

Hab. GuateMaLa, Vera Paz, Teleman, Chacoj, Panima.

Var. nigra, prothoracis lateribus, et humeris tantum flavis.

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

A common and widely-spread species in Mexico and Guatemala, mimicking various

species of Lycide and Cleride in its different forms. The thorax is minutely notched

immediately before the hind angles in both sexes; and this, with its flattish, slightly

costate elytra, shining thorax, of a semioval form, with a straight truncate base, as wide

as the base of the elytra, and rather wide compressed antenne, are the best general

characters by which it may be known.

The black portion of the elytra often commences on the suture at its base, gradually

widens till it meets the margin about one third from the apex.

SILIS. 93

Section I.3. Maris prothorax magis orbiculatus lateribus medio excisis.

3. Silis premorsa. (Tab. VI. fig. 2.)

Atra, opaca ; capite flavo, occipite nigro, oculis magnis ; prothorace suborbiculari, lateribus flavis, disco punc-

tato, opaco, medio depresso; elytris fortiter tricostatis, callo humerali flavo. Long. 8 millim. 3.

Mas prothoracis lateribus paullo infra medium fortiter profunde excisis, margine utrinque excisionis dentato-

producto.

Hab. Guatemata, Cerro Zunil (Champion).

With this species commences a little section of the genus in which the thorax, more

or less orbiculate, has a notch in the middle. |

The specimen described above is a single male captured by Mr. Champion: I have

seen several other specimens which are near to it in structure, but differ so far in the

depth and position of the excision that I do not feel it possible to unite them with it.

The antenne in this specimen are almost simple, the head wide across the eyes.

The apical abdominal plate split.

4, Silis nigrita.

Atra, nitidula; capite flavo, oculis prominulis; prothorace suborbiculari, lateribus infra medium tenuiter

incisis, flavis; elytris subtiliter coriaceis, callo humerali pedibusque basi pallidioribus. Long. 5} millim.

SQ.

Mas prothoracis lateribus infra medium oblique subtiliter incisis.

Femina? prothorace ad angulum posticum incisione obliqua sat profunda, margine basali truncato; elytris

lineis tribus elevatioribus.

Hab. GuateMaua, Chiacam, Quiche Mountains (Champion).

This is allied to S. premorsa; but, in addition to the prothorax being much less

deeply cut out in the male, the whole insect is more shining, the elytra less costate.

The legs are pale in the femora. The two specimens which may, I think, be the

females, have the thorax less orbiculate, owing to the hind angles being less obliterated,

as they are in the type, by the tooth-like projection of the margin above them.

5. Silis heematodes.

Atra, nitidula ; capite prothoraceque rufis; antennis dimidio corporis longioribus, filiformibus; elytris paral-

lelis, subtiliter coriaceis, scutello rufo. Long. 6-7 millim. ¢ Q.

Mas prothoracis lateribus infra medium oblique incisis, margine utrinque excisionis dentato-producto, angulis

posticis nullis.

Femina prothoracis lateribus trisinuatis, angulis posticis acute productis.

Hab. GuatTEma.a, Capetillo, Duefias, Cerro Zunil, Las Mercedes, Chiacam (Champion).

In this insect the thorax of the male is even more orbiculate than in 8. premorsa,

owing to the margin projecting less above and below the incision and to the hind

angles having disappeared. It is easily known from other species described here by

the head and thorax in both sexes being clear reddish yellow, the only one like it in

this respect being the following species, S. erythroderes, in which the scutellum is black

and the thorax more oblong and differently notched. The elytra are elongate and

parallel, finely coriaceous, with obsolete raised lines,

94 MALACODERMATA.

6. Silis erythroderes.

Atra, nitidula; capite et prothorace sanguineis, antennis ut in precedente, elytris subtilissime coriaceis, fere

alutaceis, scutello nigro punctato. Long. 7 millim. 9?

Femina? prothoracis lateribus medio late constrictis, ante angulos posticos sinuatis.

Hab. Mexico, Jalapa (Hége).

Distinguished from S. hwmatodes by the characters given above. There being only at

present two specimens, probably females, it will be better not to give a more detailed

description till more specimens have been seen.

7. Silis eroides. (Tab. VI. fig. 6.)

Nigro-fumosa, opaca; antennis compressis, serratis, prothorace suborbiculato, lateribus flavis, plicato-incisis ;

elytris postice modice explanatis, subtiliter rugosis, lineis tribus obsolete elevatioribus, plaga lata humerali

ochracea pone medium producta. Long. 6-7 millim. ¢ 2.

Mas prothorace fere orbiculato, lateribus medio plicato interruptis ; oculis magis prominentibus.

Femina prothorace magis oblongo, lateribus sinuatis, angulis posticis minute acutis.

Hab. Mexico, Cordova (Sallé); Guatemata, San Juan, San Isidro, El Zumbador,

Las Mercedes (Champion). -

A specimen from Las Mercedes is shown in the Plate. The pattern so very often

repeated, and the somewhat lyciform shape, occur again in the present species. There

are species of the genera Lycostomus, Calopteron, Plateros, Drilolampadius, Calocladon,

Ichnea, and of other families of Coleoptera, all in a general way, and some very closely,

alike. This insect is known by the shape of the thorax, which has a rather large and

open notch a little below the middle. The head and thorax are both rather roughly

punctured and rugose; the eyes are prominent and globular, reminding one of the head

of a Calocladon ; the elytra are firmer than usual, gradually and neatly widened.

8. Silis basalis.

Flava, subnitida; antennis (articulo basali excepto), palpis, femorum apicibus, tibiis tarsisque fuscis ; elytris

nigris, basi rufis. Long. 53-64 millim. ¢ 9. .

Mas prothorace subquadrato, lateribus infra medium minute excisis.

Hab. Guatemata, Purula, Quiche Mountains (Champion).

This little species agrees sufficiently with S. hwmatodes to be compared with it; the

thorax, however, is more transversely quadrate, and in the male is nicked much in the

manner of a Discodon. The female, however, has the minute excision immediately

before the hind angles, and these themselves, acute, as in other species of this group of

Silis. The eyes are small; the antenne nearly of the length of the body and filiform.

The amount of red at the base of the elytra varies from a mere spot to one third; it is

never very clearly defined. The specimens from the Quiche Mountains have darker

legs than those from Purula. In these latter the underside is wholly red, except the

abdomen, which is indistinctly infuscate. The legs are red, with the exception of the

tips of the tibiz and the middle of the tarsi.

SILIS. 95

9. Silis lineata.

Parallela, nigro-picea, nitida ; capite et prothorace flavis, nigro-vittatis; elytris nigro-piceis, angulo humerali

flavo ; vel flavis, sutura apiceque nigris. Long. 6-7 millim. dQ.

Mas prothoracis lateribus ante angulos posticos biexcisis.

Femina prothorace antice angulato, margine ad angulum incrassato.

Hab. Guaremaua, Cahabon, Cubilguitz, Chiacam, Balheu, Teleman, San J oaquin

(Champion).

This little species is nearly of the same size as S. basalis. The thorax is marked with

a straight narrow vitta; and the head has a spot on the crown. The antenne are black

to the base, rather more than half as long as the body, longer in the male. In the male

the thorax appears bidentate on the sides; the incision is not very deep, and the hind

angles are not acutely produced in either sex. The elytra are usually pitchy black, with

the humeral angle above yellow ; two or three raised lines are faintly visible. Varieties

occur in which the yellow extends itself along the margin, or occupies the greater part

of the wing-covers ; the apex and the suture appear always to remain black.

Section II. Maris prothorax processu duplici lamellato marginali.—Diremnvs, Leconte.

10. Silis distorta.

Nigro-fumosa, subopaca; epistomate, thoracis marginibus, abdominisque maculis lateralibus flavis ; thoracis

disco nigro, nitido, rufo-cincto, profunde fossulato. Long. 5-6 millim. ¢ Q.

Mas prothoracis lateribus processu duplici laminato, posteriore contorto, disco profunde foveolato impunctato.

Femina prothorace magis orbiculato, juxta angulum posteriorem minute exciso.

Hab. Guaremata (Sallé), Aceituno, Duefias, Zapote (Champion).

The extraordinary lamellar processes from the side of the thorax, in the males of this

and some other species, would seem at first to warrant their generic separation ; but it

is to be observed that the various species of Sidés all differ in the mode in which the

thorax is notched or sinuate, and that all the American species I have seen differ from

the type (8. rujicollis), which is a European form. While the present species retains the

principal characteristics of Leconte’s genus Ditemnus, it is plain from his description

that the shape of the processes and notches differs, and that it also differs in some

respects from Westwood’s genus Pachymesia. ‘The head presents nothing unusual; the

antenne are half the body’s length, not, or scarcely, serrate in either sex. The thorax

of the male is slightly emarginate in front; the round anterior margin then forms the

first process, which is produced backwards in a lunate form, so as partly to cover the

hinder one. The latter is produced from a detached portion of the margin in a parallel

direction; behind it the thorax is constricted. The disk is deeply foveolate, the fovea

being pointed in front and behind. In the female this fovea is only represented by an

irregular double depression. Elytra leaden black, with a greyish pubescence, their

margin sometimes exceedingly narrowly white in the middle. Legs black; abdomen

black, sometimes each segment with a yellow spot on the side.

96 MALACODERMATA.

11. Silis dilacerata. (Tab. VI. fig. 4,3.)

Nigra, subnitida; prothorace rufo, disco fossulato, nitido, nigro-vittato; elytris plumbeis, margine laterali

tenuissime albidis. Long. 5-53 millim. ¢ Q.

Mas prothoracis lateribus processu duplici laminato, posteriore contorto, biacuminato.

Femina prothorace transverse subquadrato, antice angustato, juxta angulum posteriorem minute exciso, disco

bifoveolato.

Hab. Mexico, Cordova, Capulalpam (Sallé), Juquila (Boucard, coll. Sallé); GUATEMALA,

Capetillo, Zapote, San Gerénimo, Santa Rosa, Purula, Teleman, San Juan (Champion).

Var. thorace toto rufo.

Hab. British Honpuras, Rio Hondo (Blancaneaux); Guatemala, San Gerénimo

(Champion); Nicaracua, Chontales (Janson).

The figure in the Plate represents a male specimen from Capetillo. This species is

distinguished from S. distorta by being rather less broad and more shining, by the

posterior process of the thorax in the male being in a manner bifid, and not so

apparently winding, while the anterior lamina does not overlap it so plainly. The disk

of the thorax is very shining, and in the male with a deep. fossa, which is entirely

impunctate and longer than wide. In the female this is represented by a double and

much smaller impression. The fossa and disk in front and behind are black; but the

whole hinder part of the thorax is never so as it is in S. distorta. More rarely the

whole thorax is red. Two examples from San Gerénimo have the suture narrowly pale.

12. Silis albicincta. (Tab. VI. fig. 5, 3.)

Silis albicinctus (Chev.), Sallé coll.

Nigra; ore prothoraceque rufis ; elytris marginibus et sutura concinne albis, scutello pallido. Long. 5-53 millim.

de.

Mas prothoracis lateribus processu duplici laminato; anteriore cultriformi, cum posteriore annulum quasi

prebente; disco profunde fossulato.

Femina prothoracis disco leviter impresso, angulis posticis truncatis.

Hab. Mexico, Toxpam, Cordova (Sallé) ; Costa Rica, Volcan de Irazu (Rogers).

Var. antennis, palpis pedibusque rufis; capite etiam nonnunquam rufo. ¢ Q.

Hab. Panama, Volcan de Chiriqui (Champion).

Head black, mouth whitish, palpi dark at their apices; eyes prominent, the head

contracted behind them. Thorax red, the lateral laminz of the male complicated, the

anterior one being much bent backwards into the sinus formed by the posterior. Its apex

appears to have a double acuminate angle. The posterior process is a twisted laminar

plate directed from the hind angles forwards; the basal margin beneath it appears

acutely incised.

Viewed from above these processes are confused and simply present the appear-

ance of a hole having been pierced near the hind angles. The central fovea in

the male is a deep round pit, impressed in the centre. The elytra widen from

SILIS.—TRYPHERWUS. 97

the base; they are deep shining black, with conspicuously white edges. The legs are

black with pale coxe.

The specimen figured is one from the Volcan de Irazu.

13. Silis rufifrons.

Nigra; capite, prothorace et scutello rufis. Long. 5-53 millim. ¢ 9.

Mas prothoracis lateribus processu duplici, posteriore longius biacuminato, spinifero.

Femina prothoracis angulis posticis acute excisis.

Hab. Guatemata, Chiacam (Champion).

Rather closely allied to Stlis dilacerata; but, independently of the red colour of the

head, there are permanent distinctive differences: viz. the thorax is shorter; in the male

the front process is, as it were, only the portion of the front margin left by the deep

excision of the inferior part of the side, and the hinder process is quite different in

shape, with a long spine on its basal side. In the female the hind angles have an

excision; in S. dilacerata there is none. The antenne of the male are as long as the

body, but in the female much shorter. The elytra are quite black.

14, Silis laticollis. (Tab. VI. fig. 17, ¢.)

Atra, subopaca ; prothorace lato; elytris rugose punctatis ; abdomine apice flavo. Long. 5 millim. g.

Mas prothoracis lateribus fortiter incisis, infra incisionem processu laminato, disco obsolete biimpresso.

Hab. Mexico, Jacale (Sal/é).

This is a very distinct species, and as it were intermediate between species of the group

to which S. premorsa belongs and S. distorta and the two preceding species. It is

entirely black, excepting the apex of the abdomen, the mandibles, and mouth. The

thorax is wider than the elytra; the latter are coarsely punctured and substriate, scarcely

covering the abdomen. ‘The antenne are nearly as long as the body.

The whole insect is robustly built.

Subfam. MALTHINT.

The species of this subfamily are of small size, and remarkable for their shortened

elytra. Some of the genera have very curious anal appendages and apices of the

abdomina. The genera, with two exceptions, seem poor in species, but are still widely

distributed. Two of them, however, viz. Malthinus and Malthodes, are well known

European forms abundant in species, and common on trees and bushes in early summer.

TRYPHERUS.

Trypherus, Leconte, Proc. Acad. Phil. v. p. 846 (1852) ; Trans. Ent. Soc. Am. ix. p. 58.

Lygerus, Kiesenw. Linn. Ent. vii. p. 246 (1852).

Founded by Leconte for a species found in the United States, and which is nearly

BIOL. CENT.-AMER., Coleopt., Vol. III., Pt. 2, October 1881. O

98 MALACODERMATA.

related to the Eastern genus Jchthyurus. The absence of thickened femora in the male,

and the different form of the apical plate of the abdomen, warrant its separation. One

species has been found in Central America :—

1. Trypherus forficulinus. (Tab. VI. fig. 7.)

Nigro-piceus, nitidus ; fronte flava, elytrorum apicibus abdomineque supra rufo-testaceis ; abdominis segmento

ultimo dorsali utrinque angulariter acuminato atque elevato, lobis nigris. Long. 103 millim. ¢?

Hab. GuaTEMALA, Quiche Mountains (Champion).

Head pitchy, pale yellow between the eyes; and the antenniferous tubers are of the

same colour. Antenne fuscous, except at the point of insertion to the head; their

third joint nearly twice as long as the second. Thorax of the same width as the head,

its disk impunctate, margined by a fine line. Elytra one quarter the length of the

abdomen, with two raised lines and a humeral costa; their apices rich orange or

ferruginous red. Wings reaching nearly to the apex of the abdomen. Apical segment

of the latter with two angular projecting points, which are elevated and a little slanting

outwards and dark pitchy; in the angle formed between them the segment appears to

be produced into a small angular lobe. T°. latipennis is described by Leconte as having

the female with last dorsal segment trilobed at the tip. I am not certain of the sex of

the single specimen here described.

This is one of the most singular forms among the Coleoptera ; the superficial resem-

blance to an earwig is not to be overlooked.

LOBETUS.

Lobetus, Kiesenw. Linn. Ent. vii. p. 244 (1852), nec Leconte, Trans. Ent. Soc. Amer. ix. p. 59.

This most extraordinary genus is founded on a species, torticollis, from Venezuela.

The insect which Leconte refers to it has the antenne alike in both sexes ; and notwith-

standing Dr. Leconte’s remark that in his opinion this is a character of only specific

importance, I believe, on the contrary, that, while the mode of distortion and number of

joints so affected is not perhaps of itself of sufficient importance to warrant my forming

a new genus for the species here described, yet the amorphic structure of the male

antenna indicates some rudimentary form dependent on or correlated with the shortening

of the elytra and the increase in the eyes, which are present, and is of the highest

generic significance. At all events, the species here recorded shows more affinity with

the type of Kiesenwetter’s genus than does L. abdominalis, which I feel it necessary to

assign to a different genus.

In Lobetus mirabilis it is not the ninth to eleventh joints, but every joint in the

antennee which takes some remarkable form. This structure is fairly represented in

Tab. VI. fig. 10; it is most difficult to apprehend, from the fact that the processes from

each joint are so contorted that one cannot see them all separately at one view, or even

count the number of joints with certainty.

LOBETUS.—BELOTUS. 99

1. Lobetus mirabilis. (Tab. VI. figg. 103,112.)

Testaceus ; antennis basi excepta, tibiis tarsisque, alis et abdomine ad apicem infuscatis. Long. 8 millim. ¢ 9.

Mas antennarum articulo basali magno difformi flavo, apicali spathuliformi, intermediis distortis, laminatis,

setigeris ; abdominis segmento penultimo dorsali bilobato medio excavato, genitali parvo lobis lateralibus

subsequali.

Femina antennis simplicibus, segmento ultimo dorsali bilobato, ventrali convexo.

Hab. Muxico, Cordova (Sailé).

This very singular species, while not altogether agreeing with the generic characters

of Lobetus, still shows affinity with its type.

The posterior tarsi have the first joint elongate, equal to the remainder. The inter-

mediate pair have it less lengthened, but still as long as the three following. The head

has the face perpendicular, the palpi dark. The thorax has its sides deflexed; but the

side pieces of the prosternum are distinct. The elytra are formed, as in Trypherus, with

a distinct callus and raised nervures,

Two males and two females are all that I have seen.

BELOTUS.

Lobetus, Leconte, Trans. Ent. Soc. Amer. ix. p. 59, nec Kiesenw.

I have given my reasons above for separating these insects from Lobetus. Three species

have occurred in Central America.

1. Belotus abdominalis. (Tab. VI. fig. 8.)

Lobetus abdominalis, Leconte, Proc. Acad. Phil. v. p. 347'; Trans. Ent. Soc. Amer. ix. p. 59’.

Hab. Untrep States, Georgia !, Texas, Florida (Leconte *).—MeExico, Cordova (Sal/é),

Juquila (Boucard, coll.); Guaremaa (Sallé), Capetillo, San Gerdnimo, El Jicaro, Tocoy,

Teleman, La Tinta (Champion); Honpuras (Sallé).

Var. thoracis disco infuscato.

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

2. Belotus fuscus.

Fuscus, elytrorum apicibus flavescentibus. Long. 5 millim.

Var. thoracis lateribus et margine reflexo flavescente.

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

The four examples of this species from Mexico differ from B. abdominalis in being

nearly entirely fuscous, and having the abdomen quite dark. They are not in good

condition ; but I have little doubt about their being specifically distinct.

3. Belotus maculatus.

Pallide flavescens, antennis (basi et apice preetermissis), palporum articulo ultimo, elytrorum macula oblonga

humerali, geniculis, tibiis tarsisque fuscis, alis obscuris, abdominis segmentis singulis dorsalibus extus

mucronatis. Long. 6-74 millim.

0 2

100 MALACODERMATA.

Hab. Panama, Volcan de Chiriqui (Champion).

Head not much contracted behind, yellow, shining, impunctate ; antenne reaching

as far as the posterior femora, filiform, pale fuscous; usually two or three joints at the

base and the apical joint at least are quite pale. The thorax is longer than wide, the

sides straight, narrowing a little from the base. The disk is shining, depressed on each

side of the middle, which is sometimes very finely but unevenly channelled ; it is shining

and glabrous. Elytra as long as the head and thorax, one third as long as the hind-

body ; the humerus raised and occupied by a pitchy-black spot, which continues about

half the elytron’s length; the entire margin is yellow, as well as the scutellum. The

abdomen presents the same peculiarity that I observe in Maronius dichrous; viz. the

hind angle of each segment is produced into a blunt mucronate lobe. The last dorsal

plate but one is roundly emarginate, embracing the pygidium, which is rounded at the

apex and convex above.

About ten specimens of this insect, which I think to be congeneric with B. abdominalis,

have been collected by Mr. Champion. ;

MARONIUS.

Genus antennis longis, quam corpus paulo brevioribus, elytris abbreviatis pedibusque longis Molorchum quodam-

modo simulans.

Caput breve, postice constrictum. Palpi max. art. ult. oblique truncato, subsecuriformi. Prothorax quadratus,

depressus, biimpressus, vix marginatus, linea submarginali basali impressa. Elytra tertiam partem abdo-

minis tegentia, haud distantia. Ale ample, abdomini equales. Pedes longi, tarsorum posticorum art.

primo sequentibus equali. Abdominis segmentum dorsale penultimum maris utrinque furcatum ; apicale

cum ventrali valyulam convexam formans ; feminis segm. apicale minus, obconicum apice truncato.

1. Maronius dichrous. (Tab. VI. fig. 9.)

Rufo-ferrugineus ; prothoracis disco elytrorumque apicibus aurantiacis; capite, antennis, palporum apicibus,

femoribus (basi excepta), tibiis, tarsis abdominisque segmentis duobus ultimis nigris; alis fuscis. Long.

10-11 millim. 9.

Mas processu segmenti penultimi laterali longiore, segmentis genitalibus subglobosis.

Femina processu vix prominulo, segmento apicali minore, ventrali apice rotundato, dorsali truncato angustiore.

Hab. Mexico, Playa Vicente (Sallé); GuateMaLa, Zapote (Champion); NicaRaaua,

Chontales (Belt, Janson).

A male specimen from Chontales is figured. Head black ; underside of the basal and

second joint of the antenne and base of the palpi pale yellow; terminal joint of maxil-

lary palpi triangular, apex obliquely truncate; crown shining. Prothorax reddish

yellow, with a waxy look, margins sharp but not reflexed, a double impression on the

disk. Elytra covering more than a third of the abdomen; their apices acuminate and

thickened, waxy red. Abdomen clear red, the hind angles of each dorsal segment

projecting, the last two segments black, the last but one being produced on each side: in

the male the projection is a tooth-like tubercle ; in the female it is simply the production

MARONIUS.—THINALMUS. 101

of the folded margin. The apical segment is conical, small, and truncate. The base

of the legs is clear red; the apical half of the femora, the tibia, and the tarsi are

blackish or fuscous. The basal joint of the tarsi of the posterior legs is as long as the

rest taken together. The wings are fuscous black at their apices, paler and more reddish

at the base.

Of this curious insect four examples were collected by Belt and one by Janson at

Chontales; Champion met with a single specimen at Zapote ; and there were four in the

collection purchased by the editors of this work from M. Salle.

THINALMUS.

Caput ut in Malthinus; oculi parvi, paulo prominentes. Antenne maris corpori longitudine squales, articulis

tertio ad decimum ramum flabellatum a basi emittentibus; femine corpore paulo breviores, valde serrate.

Palpi articulo ultimo vix securiformi. Elytra abbreviata, capite thoraceque longiora, apicibus distantibus.

Ale ample, abdomen tegentes.

This new genus may be briefly described as Mal¢hinus with the antenne in the male

strongly pectinate, in the female serrate. In the single species which I at present refer

- to it the basal joint of the antenna is stout, the second short and triangular, the third

and succeeding joints as long as the basal one, each emitting from the base a lamellar

branch which is longer than the joints and as long as the terminal joint, which, as usual,

has no branch. The apical segments of the abdomen do not, so far as I can see, show

any special appendages or particular structure, but are not easily observed in dried

specimens. The ventral plate of the male appears divided or sulcate.

1. Thinalmus pectinicornis. (Tab. VI. fig. 13.)

Niger, epistomate, capite infra, prothorace (vitta discoidali excepta) trochanteribusque flavis; thoracis disco

inequali, obsolete canaliculato. Long. 5-53 millim. ¢ @.

Had. Guaremata, Cerro Zunil, Zapote, El Zumbador (Champion); Panama, Volcan

de Chiriqui (Champion). |

Head black above, with the front and underside yellow, opaque, closely and very

obsoletely punctured ; at the base a fine longitudinal impressed line. Thorax smaller

and narrower than the head, black above, with yellow sides. ‘The disk is shining,

uneven, with a rather deep central channel with raised subtubercular sides; elytra

black, with two or three raised lines and irregular confluent punctures, half the length

of the body behind the prothorax. Wings dark. About a dozen specimens were taken

at Cerro Zunil, one of which is figured. I have only seen one (a female) from Chiriqui.

9. Thinalmus centro-lineatus.

Niger ; ore et epistomate flavis, capite et prothorace linca mediana rufis, scutello rufo. Long.5-6 millim. ¢ 2.

Mas antennis corporis fere longitudine, flabellatis ramis quam articulis triplo longioribus.

Femina antennis corpore brevioribus, leviter serratis.

Hab. GuatTeMALA, Sinanja valley ; Panama, Volcan de Chiriqui (Champion).

102 MALACODERMATA.

The flabellate pectination of this insect is longer than in T. pectinicornis; and it is

readily recognized by the yellow-red median vitta of the head and thorax. The former

is shaped as in 7’. pectinicornis. The antenne and palpi are dark, the terminal joint of

the maxillary pair are ovate, a little swelled, and acuminate at the tip. The second

joint of the antenne is triangular, as wide as long. The thorax has raised, slightly

thickened margins, and a median channel as in 7. pectinicornis. The elytra are entirely

pitchy black, longitudinally corrugate, and the whole of the body with the wings and

legs dull opaque black. The scutellum in the two male examples from Chiriqui is red ;

in a single female from the Sinanja valley it does not appear so. These are the only

examples that have yet been sent.

MALTHINUS.

Malthinus, Latreille, Genera Crust. et Ins. i. p. 261 (1806).

About fifty species have been described from the Palearctic Region. Mr. G. Lewis

has met with the genus in Japan; and Leconte records two species from the United

States.

1. Malthinus major.

Nigro-fuscus ; ore, antennarum apice, prothorace (disco antice excepto), pedibus (femoribus summo apice

tibiisque fuscis), pectore, abdominisque lateribus et basi testaceis, Long. 7 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Head wider across the eyes than long, much contracted behind, black, with the front

at the insertion of the antenne yellow. Antenne three fourths of the body’s length;

filiform, fuscous, the basal three or four joints pale beneath, and the apical three joints

pale. Palpi pale, with darker apex. Prothorax even and impunctate, a little narrowed

in front, with a dark patch on the front half of the disk, not, however, reaching the

front margin. Elytra opaque, fuscous, as long as the head and thorax, closely and sub-

rugosely punctured. Legs pale, a dark patch near the apex of the femora, the tibiz

and tips of the tarsi dark. Dorsal surface of the abdomen and its apex pitchy black.

This is the largest species of Malthinus I have seen; and it appears to be larger than

any species described. Three specimens recently sent from Chiriqui are all that have

been seen by me; one of these has all the pale portions darker than the other two,

owing, as I think, to discoloration.

2. Malthinus championi.

Nigro-fuscus ; antennarum apice, prothorace, pedibus basi, pectore abdomineque testaceis, hoc dorso nigro.

Long. 6-7 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Very little inferior in length to the preceding species, but narrower and with the

head especially smaller and entirely black; the antenne are not quite so long, and have

MALTHINUS. 103

the last four joints yellow; the palpi are pale, with darker apical joints. The thorax is

narrow, yellow, with a shallow depression on each side. The elytra are less evidently

punctured than in the last species, and hence are a little more shining; and the margins

of their attenuated apices are faintly yellow on the inner side. The knees of the two

posterior pairs are black, the front pair indistinctly fuscous ; the tibiee and apices of the

tarsi are dark. The underside, with the exception of the apex of the abdomen, is yellow.

Eight specimens were taken by Champion.

3. Malthinus laticeps. (Tab. VI. fig. 14.)

Nigro-fuscus ; antennarum articulo primo, prothoracis lateribus anguste, pedibus, corpore infra elytrorumque

> Pp ? 9 9

apicibus flavis ; antennis corpore longioribus. Long. 5 millim. <?

Hab. GUATEMALA, Calderas, San Gerénimo (Champion).

The head is nearly twice the width of the thorax, the space between the large sub-

globose eyes being as wide as or rather wider than it; both head and thorax are shining

and only very obsoletely punctured, but with irregularimpressions. The thorax isas long

as wide, rather convex above, with depressed sides, which are a little rounded and very

narrowly yellow. The antenne are long, and as thin and thread-like as in European

Malthini, their basal joint alone yellow. The elytra, rather more than half as long as

the body, are from their base entirely dark, excepting their apices. It will be observed

that they are thus much shorter, both in this and the following species, than in any

English Malthinus or Malthodes with which they can be compared. ‘This species has

something of the appearance of Malthodes flavo-quttatus, and is of about the size, and

has the antenne of the length of those of the male, of that species; but its head is much

wider, and its thorax is of a much narrower, more cylindrical form than that of any

species of that genus.

A single specimen taken by Champion at Calderas is the one figured; two others

were collected by him atSanGerdnimo; another specimen, apparently identical with these,

but which has lost its antenne, was taken by Mr. Salvin near the city of Guatemala.

4, Malthinus terminalis.

Nigro-piceus, nitidus, capitis fronte, prothoracis lateribus pedibusque testaceis, his tibiis tarsisque fuscescentibus.

Long. 4-5 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Pitchy black, shining, impunctate; head obscurely yellow with the base pitchy ;

antenne a little shorter than the body, slightly serrate, dark pitchy black with the two

apical joints yellow; sometimes only the terminal one is pale; palpi dark. ‘Thorax

pitchy, with the sides obtusely pale, rather wider than long, with a central channel,

which is sometimes very obsolete. Elytra shining, faintly coriaceous, entirely pitchy.

Legs pale; the tibiz are fuscous, at least at their apices, and the tarsi dark, especially

the third and fourth joints. The metathoracic epipleure are whitish.

104 MALACODERMATA.

The specimens which have one joint at the apex of the antenne pale are, I think, the

males. This species is at once distinguished among all I have yet seen of the genus from

Central America by its rather stout antenne, which are very finely serrate ; and by the

elytra without yellow apices, not much longer than the head and thorax, and by its

comparatively small size.

5. Malthinus brevipennis.

Testaceus ; antennis (articulo primo pratermisso), occipite, prothoracis macula discoidali, elytris (limbo toto

apiceque exceptis) nigro-fuscis ; antennis corpore paulo longioribus ; elytris vage punctatis, vix striatis,

corporis dimidio brevioribus, apice sulphureis. Long. 4 millim.

Hab. Guatemaa, near the city (Salvin), Duefias (Champion).

Leconte has compared his M. occipitalis with the European IZ. fasciatus, with which he

thinks it may possibly be identical. The present insect differs from fasciatus as follows :—

The black portion of the head is more extended between the eyes; the crown is nearly

smooth; the thorax is not narrowed in front, but is subquadrate, a little rounded in

front; its black marking is widest in front, often divided behind, sometimes consisting

of only four spots—two more distant in front, two nearly approaching behind connected

by an indistinct line. The elytra are much shorter than in J. fasciatus, not evenly

striate, nor punctured in rows.

Seven specimens were sent by Champion from Duefas.

6. Malthinus cruenticeps.

Niger ; capite sanguineo, antice flavo, crebre punctato; pedibus flavis, tibiis tarsisque fuscescentibus ; elytris

corpore paululum brevioribus, regulariter punctato-striatis, apicibus levibus. Long. 5 millim.

Hab. Guatemata, Cubilguitz (Champion).

Head rich ferruginous red, paler in front; antenne nearly as long as the body, filiform,

black, excepting the basal part of the first joint, their second joint equal in length to

the third ; maxillary palpi yellow, with fuscous apical joint, the latter oval, acuminate.

Thorax firm in consistence, uneven, narrowed in front, margined, with irregular scat-

tered ruge and punctures, a fossa in front and behind on the centre of the disk, and

acute but nearly right angles both in front and behind. LElytra evenly and deeply

punctate-striate, the punctures more confused laterally and towards the apex, which is

smooth and slightly convex. The prosternum, meso- and metathoracic epipleuree are

yellow, the sides of the abdomen reddish. The legs are pale yellow, excepting the tibie

and tarsi, which are pale fuscous, the apices of the former even being pale.

This very curious and interesting little species appears in some respects to resemble

Leconte’s genus Tytthonyx. The description given above will show that it is not con-

generic with the single species in that genus; indeed it seems only to differ from typical

Malthini by the hard, firm appearance of the thorax and the peculiar coloration. A

single specimen only has come under my notice.

MALTHINUS.—MALTHODES. 105

7. Malthinus flavipes.

Niger, capitis fronte, antennis basi, pedibus et corpore infra plerumque testaceis; elytris abdomine vix brevioribus>

regulariter punctato-striatis, antennis corpori longitudine subeequalibus. Long. 5 millim.

Hab. Guatemata, San Gerénimo (Champion).

Closely allied to W. cruenticeps, and agreeing with it in most of its characters, which

therefore need not be repeated. In addition to the head being black (excepting only

the front), the antennz are longer, the prothorax is more constricted in front, and the

tibize and tarsi are quite yellow. |

Only two specimens (which are probably both males) have come under my notice.

MALTHODES.

Malthodes, Kiesenwetter, Linn. Ent. vu. p. 265 (1852).

The most numerous in species of the genera of the subfamily. The range of its

distribution appears to be the same as that of Malthinus. Above one hundred species

have been described. Leconte catalogues seventeen from the United States. Two:

species, very small in size, collected by Champion, appear to pertain to this type.

1. Malthodes pallipes.

Nigro-piceus, nitidus; antennis vix corporis longitudine, pedibus flavis, tibiis tarsisque infuscatis. Long.

33-4 millim. <Q.

Mas? Capite postice magis constricto, antennis corpori fere longitudine equalibus, articulis duobus ultimis

flavis.

Hab. Gtuatemaa, Zapote, El Zumbador (Champion).

This little species is about the size of the European JZ. misellus, but rather smaller

and with shorter antenne and pale legs. The elytra are half the body’s length, evenly

punctured, not striate, and with the head and thorax of a uniform pitchy-black colour

and shining. Only four specimens have been captured; and therefore I have not been

able to make a detailed examination of the ventral segments; but they do not appear to

present any thing peculiar.

2. Malthodes sanguineicollis.

Niger ; ore, epistomate, capite infra prothoraceque rufo-ferrugineis ; metathoracis epipleuris albis. Long.

41 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Among the Coleoptera recently sent by Mr. Champion from Chiriqui is a single

specimen of a very distinct and pretty Malthodes. The front of the head, including the

tubercles from which the antenne spring, is red. ‘The antenne are entirely dark and

filiform ; and the palpi are dark. The thorax is firm, quadrate, with evident hind angles,

its disk uneven, a deep impression before and behind, and two transverse impressions.

BIOL. CENTR.-AMER., Coleopt., Vol. III., Pt. 2, December 1881. P

106 MALACODERMATA.

The disk is thus divided into a series of pits and elevations; of the latter two frontal,

three median, and two near the base transversely placed are most evident. ‘The elytra

are half the body’s length, serially punctate subcorrugate.

Fam. LYMEXYLONIDA.

The position of this singular family has not been ever definitely settled. That the

insects which compose it have very close affinities with the Lampyride, and especially

with Phengodes, cannot be denied; and I believe that ultimately it will be placed in

proximity to those genera. I am constrained to enlarge the limits of the family to

admit some very curious species for which otherwise separate subsidiary groups

would have to be erected; and I should include some groups already created, viz. the

Pterotini and Mastinocerini of Leconte. These beetles with those here described of the

genera Euryopa and Péorthodius have not, it is true, the remarkable maxillary palpi of

the true Lymexylonide ; but the eyes are largely developed in some, and the antenne

exhibit a vegetative, rudimentary structure. The excess of this structure in one pair of

the cephalic appendages may very probably account for the want of it in the other

pairs.

Of Leconte’s family or tribe Mastinocerini I will only remark here that his genus

Mastinocerus, represented by a small species from Texas, is not congeneric with the

species described and figured by Solier in Gay’s ‘ History of Chili,’ pp. 441, 442, Taf. 10.

fig. 11, in which (if the figure be correct) the tenth joint of the antenne is small, and

the terminal joint biramose; but his genus Cenophengus is related to it in having the

second and third joints short, without rami.

The Lymexylonide proper consist of only three genera and of few species; but their

distribution is as remarkable as their abnormal formation, every part of the globe

having some representative.

PTORTHODIUS.

Caput exsertum. Oculi mediocres, subglobosi, laterales. Mandibule valide, falcate, apicibus acutis, haud

dentatis; palpi maxillares articulo apicali leviter ad apicem incrassato oblique truncato, labiales apice

ovato. Antenne 12-articulate, articulis secundo et tertio brevibus, quarto ad undecimum filamenta bina

a basi emittentibus, apicali simplici. Prothorax vel opaca, pubescens (ramosi), vel nitida punctulata

haud canaliculata (mandibularis). Elytra corporis dimidio plerumque longiora, apicibus dehiscentibus.

Abdomen (maris?) segmentis septem, sexto emarginato, septimo longo angusto submucronato.

Type Ptorthodius mandibularis.

After a careful study of the characters given by Leconte for Cenophengus, Masti-

nocerus, and Pterotus, I do not think it is possible to connect the species described

here with either of those genera. It is not always easy without the microscope to

count the joints of the antenne; but in the species I select as the type they are

PTORTHODIUS. 107

evidently twelve-jointed, as will appear evident from there being eight pairs of rami,

and that the basal three and the terminal joint have none; the latter, however, is

closely articulated with the preceding joint, and the division is not distinct.

1. Ptorthodius mandibularis.

Testaceus; capitis vertice tumido nigro, mandibulis apice, antennis elytrisque piceis, his plaga discoidali

testacea ; alis fuscis. Long. 8 millim. ¢?

Hab. Panama, Volcan de Chiriqui (Champion).

Of all the small biramose species that I have yet seen of this group, this most

resembles a Phengodes; the head is strongly raised behind and between the tubercles

which give rise to the antenne, and at this part is pitchy black and sparsely punctulate ;

the palpi, front of the head, and mandibles, except at their tip, are testaceous.

The basal joint of the antenne is stout, equal in length to the second and third taken

together ; and these three are pale beneath, fuscous above; the third to the eleventh

joint gradually increase in length; each of them emits a long ramus, from three

to four times the length of each joint, from its base on each side. ‘The thorax is

oblong, its lateral margin ends in front in a transverse constriction; the hind angles are

square, a little turned outwards; it is shining, testaceous, with scattered punctures.

The elytra have the suture more or less open, being narrowed from their bases; their

tips are pale. The legs are entirely pale testaceous, the joints of the tarsi simple, the

claws only a little dilated on their inner edge near the base. The apical segments of

the abdomen are elongated and acuminate, not closely applied to each other, but more

or less gaping or crossing and overlapping.

This insect is very like Euryopa singularis; but, in addition to its tumid head and

smaller eyes, the antenne are longer, with longer joints, and long (not rudimentary)

rami. Three specimens taken by Mr. Champion at Chiriqui are all that I have seen.

2. Ptorthodius ramosus. (Tab. VI. fig. 12.)

Niger, opacus; capite quali, antice sordide ferrugineo ; elytris subgranulosis. Long. 73 millim. ¢.

Hab. GUATEMALA, Quiche Mountains (Champion).

The characters which separate this from Ewryopa nigra are very much such as I have

noticed distinguish P. mandibularis and E. singularis ; yet I do not think there is evidence

enough to connect them as sexes of one species. The colour and rough opaque texture

are the same ; but the antenne have longer joints, with long rami. The head is not raised

as in P. mandibularis; the only difference I see between the head of this species and

that of HL. nigra is that the eyes are smaller and more prominent.

Two specimens are assignable to this description, in one of which the head 1s

quite black.

P 2

108 MALACODERMATA.

EURYOPA.

Caput breve, collo haud exserto. Antenne 11-articulate, articulo pasali valido, secundo perbrevi, tertio ad

decimum filamentis binis pubescentibus instructis, undecimo longo simplici. Palpi maxillares articulo

ultimo precedenti subsquali, ovato. Mandibule parvee, haud falcate. Oculi magni, subtus fere contigui.

Prothorax equalis, transversus, angulis posticis haud productis, rectis. Elytra, corporis dimidio squalia,

postice attenuata, non subulata. Als ample, corpus superantes. Abdomen (maris?) segmentis ventralibus

septem et genitali; segmentis brevibus et postice angustioribus.

Type Euryopa fusca.

This genus differs from Phengodes in the shorter antennee, which have the filaments

decreasing in length as they approach the tenth joint ; the palpi are shorter. The head

is quite of a different shape, not prominent in front, nor excavated between the eyes.

The mandibles are inconspicuous. The eyes are large, globular, nearly meeting

beneath, separated by a smooth space above, equal in width to one eye. The thorax

has no thin expanded margin as in Phengodes. The elytra are not so rudimentary ;

when closed they diverge but a little, their suture and margins a little thickened and

ciliated.

I have not seen either Pterotus, Leconte, or Bawoscelis, Spinola. The reduction of

the mandibles seems to afford sufficient distinction, however, from either of those

genera.

Four species from Central America are referable to the genus.

1. Euryopa fusca.

Fusca, nitida, capite nigro, prothorace et subtus subtestacea, antennis floccosis, elytris longitudine vix

eequalibus. Long. 8 millim.

Hab. Mexico, Cordova (Sallé).

Head pitchy black, crown shining, punctured; antenne pale fuscous, much shorter

than in Phengodes, but with similar filamentary rami from the bases of joints 3-10;

palpi and mouth fuscous. Thorax wider than long, the front angles much depressed,

the lateral margins sharp and conspicuous but not expanded; prosternal region not

much developed; the disk shining, almost glabrous; the base slightly sinuous, hind

angles a little wider than right angles. Elytra longer than half the body, but by no

means covering the ample wings, which reach beyond the apex of the abdomen. The

former are soft in texture, of a uniform fuscous, obsoletely impressed, without visible

nervures; their external margins as well as the sides of the thorax are furnished

with soft brown cilia; and a very short but erect pubescence covers most of the whole

insect. The underside and legs are yellowish fuscous.

This singular beetle is allied to Phengodes; but the head with large eyes and the

thorax remind one of those of Luciola. The segments of the abdomen are not only

not so compressed and extended as seems usual in Phengodes, but are much shorter,

only passing the posterior femora by a little. The eighth or genital segment consists

EURYOPA. 109

of an upper and inferior, tubular or, rather, stylose plate ; but to which sex to refer the

two specimens before me I am at a loss.

There is no appearance of luminosity; but it is to be noticed that the whole under-

side is pale yellow or fuscous.

2. Kuryopa singularis. (Tab. VI. fig. 4.)

Fusca, nitida; capite, pedibus et corpore subtus flavis, antennis breviter bipectinatis, elytris et thorace longi-

tudine eequalibus. Long. 7 millim. ¢?

Hab. GuatemMaa, Cerro Zunil (Champion).

Head suborbicular, depressed, obsoletely punctured, pale yellow; mandibles, sides,

and base pitchy; antenne pale, joints 3-10 (?) each with two short lamellar branches ;

the joints are cylindrical, longer than wide, the lamelle equal to two joints in length.

Palpi with the apical joint short and wide, obconic. Thorax fuscous or pitchy, shining,

obsoletely punctate, longer than wide, the base produced in the middle, anterior angles

deflexed, posterior obtuse, not prominent; sides with fine pubescence. Llytra nearly

half as long as the abdomen; suture divergent, rather rough, and darker towards the

apex. Wings ample, reaching the apex of the abdomen. Legs clear yellow; tarsi

filiform, fourth joint not bilobed; abdomen yellow, apical plates pitchy.

The very singular insect described above is allied to a species I have received from

Texas under the name Mauastinocerus texana, Leconte. Neither of them, however, can

belong to Mastinocerus, Solier in Gay’s ‘History of Chili, iv. p. 440, which has very

long antennz with long branches, the tenth joint being of a singular form, and the

eleventh divided. |

3. Kuryopa brunnea.

Brunnea, nitida, antennis breviter bipectinatis fuscis. Long. 4 millim.

Hab. Guatemata, Cahabon (Champion).

Allied to E. singularis, from which it differs in being very much smaller, more

shining, and of a uniform red colour, the antenne and palpi being darker. The head

is quite glabrous; the thorax also quite smooth, subquadrate, the base raised in the

middle, sides a little narrowed towards the front. LElytra thin and semitransparent,

roughish.

A single example only has been sent.

4, Huryopa nigra.

Nigra, subopaca ; capite rufo, mandibulis piceis, rugose punctato, antennis nigris breviter bipectinatis. Long.

6 millim.

Hab. GUATEMALA, Capetillo; Panama, Volcan de Chiriqui (Champion).

The characters which distinguish this from the two preceding species are its generally

110 MALACODERMATA.

black colour, the shorter transverse thorax, the smaller eyes, and its opaque surface.

The head is obscurely red, blackish near the eyes; the mandibles are more prominent

than in either of the other species. The thorax is clothed, especially at the sides, with

hairs. The elytra are a little shining, closely and finely punctured. The wings in

repose cover the abdomen, as in the other species of the genus; they are dark.

Only two specimens of this species have apparently been met with. Its resemblance

to Ptorthodius ramosus is so close that I should have been inclined to consider them

sexes of one species, but that the differences of the antenne with eleven joints, and of

the form and position of the branches seem to me rather generic than sexual.

MELITOMMA.

Melitomma, Murray, Ann. & Mag. Nat. Hist. ser. 3, xx. p. 314 (1867).

Hylecetus, Castelnau, Ann. Soc. Ent. Fr. 1832, p. 398.

The genus Melitomma was proposed by Mr. Murray, in the ‘Annals and Magazine

of Natural History,’ for the insect known as “ Hylecetus brasiliensis” of Castelnau, and

its affinities discussed at some length. It is not very clear, however, whether the

characters of his genus were taken from the Brazilian species or from the insect

described by him as WM. castaneum from Old Calabar; nor do I feel at all sure that, if

such a species exists, it is distinct from the American insect. The Lymexylonide of

Mr. Murray’s collection were purchased by me; but although I find specimens of what

I refer to H. brasiliensis, there is no type of VM. castanewm among them. A species,

however, which appears identical with Mr. Murray’s is in my collection from Siam,

Laos, Celebes, and the Andaman Islands; and what is very remarkable is that there is

really no specific difference between these beetles and the species sent from Central

America. Nor is there any doubt about their generic difference from either Hylecetus

or Lymeaylon. They are most nearly related to the latter genus, inasmuch as the

abdomen is formed of five segments only. The so-called ocellus on the head of

Hylecetus, but which is simply a central point in the corrugation, is not present either.

It would, indeed, have been remarkable if this point had proved to be an ocellus, as I

am not aware that any coleopterous imago possesses such an organ.

But this genus is especially interesting because it proves the connexion of the genera

I have admitted here, Euryopa and Ptorthodius, with the Lymexylonide. ‘The antenne

show a similar “‘imbricate” or abortive stage of vegetative structure; the form of the

thorax is almost identical, while the five segments of the abdomen and the singular

palpi of the male show a close affinity with Lymeaylon.

1. Melitomma brasiliense. (Tab. VII. fig. 3.)

Hylecetus brasiliensis, Cast. loc. cit. p. 398°.

Melitomma brasiliense, Murray, loc. cit. p. 315°.

Melitomma castaneum, Murray, loc. cit. p. 316°.

MELITOMMA.—ATRACTOCERUS. 111

Hab. Mexico, Cordova, Tuxtla (Sallé); Guaremata, El Reposo, El Zumbador

(Champion) ; Nicaraeua, Chontales (Belt); Braziu}, Santa Catharina? (coll. Gorham,

Murray).—Cr.zpes (Wallace); Wust Arrica, Old Calabar?; Anpaman Isianps, Siam,

Laos, Pachbon (Mouhot).

I have stated above that the type of Mr. Murray’s /. castaneum has not been seen

by me; the only difference which I can observe between the American and the Eastern

exponents of this species is that the latter are rather more deeply castaneous or ferru-

ginous red, and that their elytra are not so densely pilose; but even this is not always

observable. In one example, at least, that from El Reposo, the elytra are at once

darker and smoother than in other American specimens. Some of the Eastern examples

are 24 millim., or nearly an inch in length; these are females; the males are usually

much smaller, 10 millim.; but I must here notice I have found no male specimen from

Central or South America, excepting one from Santa Catharina, which has, like those

from the Amazon and Peru, black margins to the thorax and elytra. Ido not, however,

regard these as a separate species, and have therefore no reason for supposing the males

of the Mexican or Guatemala species will be found to be different.

My own belief is that this will prove to be a species which is transported with

commerce, in the spars or timber of shipping, although in that case the occurrence of it

at high elevations must be admitted to be singular.

ATRACTOCERUS.

Atractocerus, Palisot de Beauvois, Décad. Philom. Ann. ix. p. 6 (1801).

Macrogaster, Thunb. Geetting. Gel. Anzeig. xxix. p. 281 (1805).

The most abnormal genus of this curious family. ‘The insects comprised in this

genus have more the appearance of some Neuropterous or Dipterous form. The eyes

are enormous, contiguous, or almost so, above, the antenne rudimentary, the maxillary

palpi of the male largely developed and with lamellar processes, the elytra reduced |

to a pair of scale-like rudiments; the hind wings well developed, with a costal and four

principal veins; the third vein gives rise to two branches; these veins are all continued

to the hind margin of the wing, and so form seven open cells. The costal and first

vein are united by a transverse stigmatic vein.

Ten species of Atractocerus are given in the Munich Catalogue: they occur without

much differentiation in Brazil, Africa, Madagascar, Ceylon, Java, the Moluccas,

Australia, and I possess an undescribed species from the Philippine Islands.

From their habit of flying to light, and their largely developed eyes, I think it

probable that the Atractoceri are parasitic upon the Lampyride in some of their stages.

The Central-American species seems identical with the common South-American one.

112 MALACODERMATA.

1. Atractocerus brasiliensis. (Tab. VII. fig. 7.)

Atractocerus brasiliensis, Serville, Enc. Méth. x. p. 8309*; Lacord. Gen. des Col. iv. p. 501”, Atlas,

t. 47. fig. 1.

Atractocerus dipterorum, Cast. Hist. Nat. i. p. 290%.

Atractocerus dipterum, Perty, Del. An. p. 25, t. 5. fig. 15.

Hab. Mexico, Cordova, Tuxtla, Isabal (Sad/é); Guatemata (Sallé), Duefias (Salvin),

Pantaleon, Torola (Champion); Nicaragua, Chontales (Janson); Panama, Volcan de

Chiriqui (Champion).—Sovutu AMERICA, Brazil ! 2 3, Chili.

The Central-American specimens vary immensely in size; the smallest, one from

Tuxtla, is very little over 13 millim. in length ; while another from Cordova measures

43 millim., and is proportionally larger and more heavily built. Both of these appear

to be males; yet it does not seem possible to separate them specifically. A. brasiliensis

does not differ much from the corresponding species which occurs in Africa, A. africanus :

the chief difference lies in the shorter thorax, with a not so deeply impressed median

channel.

Fam. MELYRIDA.

The insects comprised in this family are generally distinguished among the Malaco-

dermata by the insertion of the antenne being in front of the eyes, on the sides of the

front part of the head, by having the labrum distinct, and by the abdomen being

composed of six plates or segments. In the structure of the tarsi, which often have the

joints bilobed, produced into submembranaceous pads beneath, more or less enclosing

the succeeding joints, and in the rather retracted head closely fitting into the thorax,

as well as in the brilliant colours with which many of them are adorned, these beetles

exhibit an affinity with the Cleride more close than any other family of the group.

They are remarkable for the singular vesicles which many of them are capable of

suddenly extruding from the thorax and abdomen on being frightened.

Subfam. TAL ACHITDES.

The Melyride are divisible into three subfamilies, the last of which, the Priono-

cerides, is peculiar to Africa and the East.

The Malachiides are for the most part small insects, abundant in the temperate parts

of the Old World, rarer in tropical countries. While America north of Mexico has

at least sixty-five representatives, the diligent researches of MM. Sallé, Boucard, and

Mr. Champion, with other collections added, do not bring forward more than a dozen and

a half from Central America. They have been excellently monographed by Erichson.

COLLOPS. 113

COLLOPS.

Collops, Erichson, Entomographien, p. 54.

Megadeuterus, Westw. Trans. Ent. Soe. ii. p. 98.

The species of this genus have apparently ten-jointed antenne, the second joint

being very small; the third is distorted, and in the male much enlarged, as is well

shown in Tab. VI. fig. 21.

1. Collops bipunctatus.

Malachius bipunctatus, Say, Journ. Ac. Nat. Sci. Phil. iii. p. 185 ; Amer. Ent. iii. t. 487.

Collops bipunctatus, Erichs. Ent. p. 55.

Hab. Unirep States, Arkansas 1.—Mextico 2 (Sturm, coll. Sallé).

2. Collops aulicus. (Tab. VI. figg. 21, 22.)

Collops aulicus, Erichs. Ent. p. 551.

Hab. Mexico! (Sallé), Toluca, Puebla (Sailé), Guanajuato (Duges, coll. Sallé).

The figures are taken from specimens in Sallé’s collection, without exact locality,

from Mexico.

3. Collops tricolor.

Malachius tricolor, Say, Journ. Ac. Phil. iii. p. 182; Amer. Ent. iii. t. 48’,

Collops tricolor, Erichs. Ent. p. 47°.

Hab. United States, Mississippi —Mextco !2, Etla, Parada (Boucard, coll. Sallé),

Puebla (Sallé), Oaxaca (Hége).

4. Collops femoralis.

Nigro-ceeruleus ; antennarum basi, ore, prothorace, pedibus basi abdomineque rufis, elytris subviridi-ceruleis.

Long. 53-6 millim. ¢ 9.

Hab. GUATEMALA, near the city (Champion).

I should scarcely have given this specific rank but that the differences of several

other species of Collops are mainly those of colour, and all the specimens collected by

Champion near the city of Guatemala agree in having the legs red as far as the knees.

With these a single specimen, from Guatemala, in Sallé’s collection agrees; and they

appear to be a trifle longer and to have the elytra more of a green tint than they

are in C. tricolor. It therefore appears to be at least entitled to a name as a local

race or variety.

5. Collops geminus.

Collops geminus, Erichs. Ent. p. 58°.

Hab. Guatemata, Chiapas (SaJlé), Duefias, Guatemala city (Champion); NicaRAGua

(Sallé), Chontales (Janson).—VENEZUELA, La Guayra 1.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, April 1882. Q

114 MALACODERMATA.

6. Collops histrio.

Collops histrio, Erichs. Ent. p. 59°.

Hab. Unitep Statzs, California 1.—Mextico, Etla, Oaxaca (Boucard, coll. Sallé, Hoge),

Misantla, Cerro de Plumas (H6ége); GuaTEMALA, San Gerdnimo, Guatemala city

(Champion).

Although the specimens in Sallé’s collection stand under the name “ guadrimacu-

latus, Say,” they agree more closely with the species to which I refer all the specimens

collected by Hoge and Champion. C. histrio differs, according to Erichson, from

C. 4-maculatus in the basal cyaneous spots touching the suture and external margins,

and is a little larger on the average. They are evidently very nearly allied to each

other.

7. Collops decorus.

Collops decorus, Erichs. Ent. p. 59°.

fab. Mexico! (Sturm, coll. Sallé).

Differs from C. geminus by the unspot ed thorax and red abdomen. I observe,

however, that in specimens of C. geminus from Guatemala the segments of the abdomen

are red with a pitchy centre, or a wide spot on each side, while in one at least of the

two specimens named C. decorus in Sturm’s writing, the femora are red, and in the

other are, with the abdomen, obscure, the specimens being old. The identification of

these specimens must therefore be considered a little doubtful.

8. Collops vittatus. (Tab. VI. fig. 23.)

Malachius vittatus, Say, Journ. Ac. Phil. ii. p. 184°; Amer. Ent. in. t. 48,

Megadeuterus haworthi, Westwood, Trans. Ent. Soc. i. p. 98, t. 10. fig. 9 *.

Collops vittatus, Erichs. Ent. p. 617.

Hab. Unitep States, Mississippi!.—Mexico?, Puebla, Orizaba (Sal/é), Misantla

(Hoge).

The specimen figured is a variety which wants the thoracic spots, from Puebla.

The two spots are present in a single specimen from Misantla, and in one from

Orizaba.

ANTHOCOMUS.

Anthocomus, Erichson, Entomographien, p. 97.

The European Anthocomi are well known as gay little insects delighting in flowering

herbage in summer. The species which have the second joint of the tarsi of the male

produced so as to cover the two following are now generally placed in Attalus. The

males of some species have the apex of the elytra indented and with appendages ; but

I have not yet seen a Central-American species of this form.

ANTHOCOMUS. 115

1. Anthocomus plagiatus.

Niger, nitidus; prothorace rufo, plaga lata discoidali nigra; elytris griseis, cinereo-pubescentibus, nigro-pilo-

sellis. Long. 4 millim. 9.

Hab. GuatEMALA, Calderas (Champion).

Head nearly as wide as the thorax, broadly impressed in front, black, the front and

sides as far as the insertion of the antenne testaceous; the antenne are faintly serrate

from the fifth joint; the two basal joints are yellow beneath. The thorax is orbiculate,

rather broader than long, red, with a broad black central vitta, which does not touch

the front margin. The elytra are ashy grey, opaque. Body beneath and legs black.

Var.? Thoracis disco nigro limbo posteriore et angulo antico tenuissime testaceis.

Hab. GuateMata, Calderas (Champion).

Three specimens from Calderas differ in having the thorax nearly totally black; but

as two of these have the narrow testaceous edge wider at the front and hinder angles,

they will probably be only regarded as varieties of A. plagiatus.

2. Anthocomus byssinus.

Anthocomus byssinus, Erichs. Ent. p. 109°.

Hab. Mexico}.

I have not been able to identify this species. It is apparently near to the variety

described above, but with a lateral vitta on the margin of the elytra.

3. Anthocomus maculosus. (Tab. VII. fig. 1.)

Rufus, nitidus; prothoracis maculis duabus, elytrorum basi maculisque duabus magnis subrotundatis prope

apicem, mesosterno, femoribus (anticis et intermediis intus rufis, posticis basi rufis), antennis, tibiis et

tarsis nigris. Long. 34 millim. 4.

Mas. Tarsi antici articulis duobus primis rufis, art. 2° supra lobato.

Hab. Guatemata, San Gerdnimo (Champion).

Var. Capite prothoraceque nigris, ore testaceo. @.

Hab. GUATEMALA, Chiacam (Champion).

Shining, very obsoletely pubescent, and with a few black erect hairs here and there.

Head and thorax red, the former faintly clouded on the crown, the latter with two

conspicuous round spots, one on each side. The elytra have a band at the base scarcely

so wide as the length of the thorax, and a large, round, but somewhat irregular spot

near the apex black; they are convex, and evenly widened a little behind. Under-

neath the only black part is the metasternum. The variety only differs in having the

head and thorax black above, the mouth being yellow: there are two specimens from

Chiacam which agree in this respect, and which are females; it is therefore possibly a

sexual distinction. The antenne are black, with two or three joints at the base testa-

ceous, in the female variety spotted with black above.

116 MALACODERMATA.

4, Anthocomus pusillus, (Tab. VI. fig. 24.)

Rufus ; elytrorum basi et macula magna subapicali, antennis, tibiis et tarsis, cum metasterno nigris ; femoribus

anticis et intermediis supra, posticis basi excepta nigris. Long. 2 millim.

Hab. Mexico, Cordova (Sallé).

Var.? Occipite prothoracisque limbo frontali nigris; elytris magis nitidis.

Hab. Mexico, Cordova (Sal/é).

This differs from A. maculosus, “type ” form, in being very much smaller, and in

wanting the thoracic spots. The specimen figured has the scutellum yellow; but it is

black in the supposed variety.

There was only a single specimen of each in Sallé’s collection.

5. Anthocomus basalis. (Tab. VI. fig. 25, A. rufipennis.)

Anthocomus basalis, Erichs. Ent. p. 110°.

Hab. Muxico, Cordova, Teapa (Sallé), Cerro de Plumas (//6ge); GuatEMALA, Senahu,

San Joaquin, San Gerdnimo, Paso Antonio, Capetillo, Zapote, Mirandilla (Champion) ;

Nicaragua, Chontales (Janson).—SoutH America, Colombia}.

The specimen figured as “ Anthocomus rufipennis” is one from Teapa.

As might be expected in so widely distributed a species, this insect is very variable in

colour and size. Although Erichson mentions several varieties, yet there are several

others in the series collected by Champion and in the Sallé collection which it will be

better to classify as follows :—

Head, thorax, and elytra with scutellum red, unspotted.

. Like a, but with a small black humeral spot.

. The same, but with a black basal band and black scutellum.

Thorax piceous, elytra with a black basal spot. Legs, head, and underside red,

clouded with pitchy.—A. basalis, Er. .

. Head and thorax black; elytra with a small shoulder-spot.—A. rufipennis, Gorh.

(Tab. VI. fig. 25.)

¢. Head, thorax, and base of elytra, with scutellum black.

n. Head and thorax black; elytra red, unspotted.

9972 WS

6. Anthocomus discimacula.

Anthocomus varians (Dugés), Sallé coll.

Niger, nitidus; prothorace rufo macula discoidali sat magna marginem anticam attingente nigra, elytris nigro-

cyaneis. Long. 2 millim.

Var.? Thoracis disco nigro-cruciato, femoribus anticis subtus testaceis.

Hab. Mexico, Guanajuato (Dugés, coll. Sallé).—Var. Jalapa (ége).

The head, antenne, body, and legs are black; the thorax orbiculate, red, with a very

distinct black patch on the disk extending to the front. In one specimen (probably

ANTHOCOMUS. 117

male) the front legs are testaceous, excepting their bases and tarsi; and the antenne

are pale, with the middle joints spotted above. The elytra are blue-black, with a fine

cinereous pubescence, but without erect pile.

I have not adopted the name attached to this insect (but, I believe, not published),

as it did not appear appropriate, the four specimens from Dugés’s collection being closely

alike.

I have only seen a single one of the variety taken by Hoge.

7. Anthocomus sxneo-picipennis.

Flavus ; elytris eeneo-piceis vel viridibus, scutello obscure testaceo, pedibus posticis (basi excepta) fuscis. Long.

23 millim.

Hab. Mexico, Jalapa (Hége).

This seems a clearly distinct and easily recognizable species; the whole body

beneath, with the head and thorax and appendages, being testaceous yellow. The

elytra in two specimens brassy, with a greenish iridescent reflection, and in two decidedly

green: these are smaller, perhaps maturer, specimens; and their antenne are infuscate

towards the apex.

8. Anthocomus laticollis.

Anthocomus laticollis, Erichs. Ent. p. 112°.

Hab. Mexico}.

I have not been able to identify any of the species I have seen with Erichson’s

description.

9. Anthocomus sapphirinus.

Niger; prothorace rufo nigro-notato vel nigro, elytris cwruleis fere glabris, capitis fronte, tibiis tarsisque

testaceis. Long. 14-2 millim.

Hab. Mxxico, Jalapa (Hoge).

Distinct from any other species known to me by the almost glabrous elytra and their

curious blue iridescent hue; some specimens have them of an olive-green tint. The

thorax is variable in colour, from red with a central dark line to black. The antennze

and tarsi are infuscate in front.

Nine specimens (five with black, four with red or spotted thorax) in Hoge’s

collection. |

10. Anthocomus nigro-neus.

Niger, supra eneo-micans ; antennis basi, tibiis tarsisque basi piceis, elytris obsolete nigro pilosellis. Long.

2 millim.

Hab. Guatemaa, Cerro Zunil, San Gerénimo, El Jicaro (Champion).

118 MALACODERMATA.

This little species is rather narrowed in front; the labrum is whitish, black at its

base; the antenne are dark, with a few joints reddish at the base, scarcely so long as

the head and thorax ; the joints subequal, from the second onwards a little longer than

wide, scarcely serrate; on the front of the head are two faint impressions. The thorax

is suborbiculate, a little truncate in front, shining, without visible punctuation. The

elytra are shining brassy black, widening behind, and with their apices conjointly

broadly rounded. The legs are black, with the tibiee and base of the tarsi pitchy red ;

occasionally the front and middle femora are red also on their internal sides.

Four specimens from San Gerdnimo, two from El Jicaro, and two from Cerro

Zunil are referable to this species.

ATTALUS.

Atialus, irichson, Entomographien, p. 89 (1840).

The only trenchant character by which this genus is separated is the structure of the

second joint of the front tarsi in the male sex. According to my own observation they

are less convex and less widened behind than Anthocomi or Eb@i; and some have the

head more produced into a muzzle, on which the antenne are inserted; but this does

not apply to all the species.

About fifty species have been assigned to Attalus from Europe and the bordering

districts, especially from the Mediterranean shores; and there are twenty-three species

in Crotch’s list from North America.

The species described here must be regarded as somewhat doubtfully assigned to the

genus.

1. Attalus sericans.

Niger, supra subeneo-cinereus; elytris nigro-pilosellis, pube brevi densius vestitis micantibus; antennis pedi-

busque nigris, illis articulis tribus basalibus picescentibus. Long. 4 millim.

Hab. GuatTeMALA, Panima (Champion).

Head subrostrate; antenne inserted in front of, but nearer together than the eyes,

their third and fourth joints rather longer than those succeeding, which are only a little

longer than wide. The crown is doubly impressed between the eyes, the base rounded

and well separated from the thorax. The thorax is rather shining, but clothed with

very short pubescence and pile, and is a very little wider than long. The elytra are a

little widened behind; they are very densely pubescent, so as to render them dull; but

the pubescence is so very short, and reflects the light, that they cannot be termed

opaque. The legs and underside are black.

Only one specimen has been taken of this insect.

ATTALUS. 119

2. Attalus limbatus.

Testaceus, supra nigro-piceus nitidus, subtilissime punctatus; capite antice, pronoti limbo toto, elytrorumque

marginibus lateralibus et apice cum sutura testaceis; antennis piceis, basi infra testaceis. Long.

23 millim.

Hab. GUATEMALA, near the city (Champion).

A bright little distinct Atta/us, which may be compared to the European A. amictus,

but is more depressed; and the narrow testaceous limb of the pronotum distinguishes

it from any species yet known to me. The head is clear yellow from the mouth as far

back as the middle of the eyes; on this part are two spots, which, as well as the tips of

the palpi and the upper surface of the antenne, are pitchy. The thorax is wider than

long; the yellow margin invades the disk in a small notch in the centre of its side, and

is here redder than elsewhere. The apices of the tibie and tarsi are dark.

There is only one specimen I can refer to this species; a second has unfortunatcly

been broken from the card.

3. Attalus anthobioides.

Testaceus ; capite supra pone oculos, prothorace, elytrorum basi tenuiter, scutello pectoreque nigris ; prothorace

infra cum margine, presertim ad angulos posticis, testaceis. Long. 2 millim.

Hab. GUATEMALA, Cerro Zunil (Champion).

Head well separated from the thorax, which it equals in size, scarcely produced in

front. Antenne, palpi, underside, mouth, and epistoma yellow; antenne short, with

the joints nearly equal in length and breadth. The margin of the thorax, legs, and

elytra are pale yellow: the latter do not cover the two or three last segments of the

abdomen ; they are a little widened, and sometimes faintly infuscate behind; they are

separately rounded, leaving the sutural angle open at the apex.

Nine specimens taken at Cerro Zunil are all I have seen that are clearly referable to

this species.

4. Attalus scutellaris.

Testaceus, nitidus ; capite supra pone oculos, prothorace (limbo excepto), scutello vittaque subscutellari, postice

attenuata, ante apicem desinente, nigro-eneis. Long. 13-2 millim.

Hab. Muxico, Jalapa (Hoge); Guaremana, Panajachel, and near the city (Champion).

Very near the preceding species; but, in addition to the vitta at the base of the

suture, it differs in the form of the head, which is not so distinct from the prothorax,

in the brassy tint of the dark parts, in having the antenne fuscous above, and in the

thorax not being so short.

The specimen from Mexico is but doubtfully of the same species as the type, which

is from Panajachel, where two specimens (which quite agree with one from Guatemala

city) were taken by Mr. Champion.

120 MALACODERMATA.

5. Attalus caraboides.

Oblongus, testaceus, supra nigro-eneus, pectore abdominisque lateribus piceis; trochanteribus distantibus,

intermediis dentiformibus; antennis pedibusque ferrugineis, femoribus posticis supra infuscatis. Long.

23 millim.

Hab. Guatemata, Panajachel (Champion).

Mouth testaceous; antennee rusty red, basal joint spotted with dark above. Thorax

subquadrate, nearly as wide as the base of elytra, entirely brassy black above, with faint

indication of punctures, especially towards the sides, which are a little foveolate. The

elytra are nearly black, finely and obsoletely punctate, not much widened posteriorly.

The trochanters are remarkable, the middle pair being produced into a sort of tooth,

and the anterior and posterior pairs standing out more from the femora than usual; the

hind pair are pitchy ; the other two, with the whole of the cox, are red. The produced

second anterior tarsal joint is very long and easily observable.

This is the only insect of this whole family in which I have noticed the character of

the trochanters above alluded to; it is, however, the same in each of the two speci-

mens. It may indicate a separate genus, or may be only an unusual sexual distinction,

the specimens appearing to be males by the front tarsi.

6. Attalus nigritulus.

Niger, nitidus; ore, capite subtus pedibusque anticis basi interdum piceis. Long. 24 millim.

Hab. Mexico, Cordova (Sailé), Jalapa (Hoge).

This species is black entirely, excepting the mouth and underside of the head (and

in some specimens the base of the front femora), which are pitchy red. The elytra are

depressed and widened behind, and, with the thorax, are not punctured. The sides of

the thorax are much depressed, giving its disk a cylindrical appearance,

EBAUS.

Ebeus, Erichson, Entomographien, p. 113.

The insects comprised in this genus are very closely allied to the Anthocomi. I have

found no American species with the elytra having appendicles. The three species here

recorded are small, short, and much widened behind, with distinct punctuation. The

Ebei proper inhabit Europe and the countries bordering the Mediterranean, from which

district about thirty have been described. The Hyphebwi of Kiesenwetter, to which he

has attributed a species from Japan, are more like Attali. Two species from the latter

country are referred by him to Ede@us. The North-American species, four in number,

are now separated under the name Pseudebeus, Horn.

EBXUS.—DROMANTHUS. 121

1. Ebeeus eneo-virens. (Tab. VII. fig. 2.)

Latus, obovatus, nigro-piceus, supra seneo-virens nitidus; elytris convexis, postice fortiter ampliatis, parce pro-

funde punctulatis; antennarum basi, tibiis tarsisque testaceis, his articulo ultimo, illis apicibus infuscatis.

Long. 23 millim.

Hab. Guatemata, Calderas (Champion).

Broader and more convex than any of the preceding species of this family, or, indeed,

than any species with which I am acquainted, it is also easily recognized by the coarse

large punctures of the elytra. The head is scarcely impressed, and, with the thorax, is

usually bronzy green; the thorax and elytra have a few erect hairs.

A large number of this species were taken at Calderas. A few vary in being more

coppery in tint. I cannot distinguish the sexes.

2. Ebeus seminulum.

Anthocomus seminulum, Erichs. Ent. p. 112°.

Hab. GUATEMALA, near the city, Paso Antonio (Champion).—Sovutu America, Caracas 1.

The characters which separate this tiny species from E. minimus seem to be its slightly

larger size, rather more infuscate legs and antenne, black labrum and clypeus, and less

transverse thorax. In all these points the specimens I have identified with Erichson’s

insect differ from the next as described by him. But in such very minute species of a

difficult family nothing but a comparison of specimens from both localities can, I think,

settle the question of their identity or difference.

3. Ebzus minimus.

Anthocomus minimus, Erichs. Ent. p. 113°.

Hab. Guatremata, San Gerdénimo, Pantaleon ; Panama, Volcan de Chiriqui (Champion).

—SovutH America, Colombia}.

The very small size (scarcely more than 14 millim.) of this insect, together with its

nearly entirely testaceous legs and antenne, sufficiently separate it from any other black

species of the family. Very small examples of A. anthobioides, and of some other

fasciate and maculate undescribed species, are almost or quite as small. Neither this

nor the preceding appear to be as common as FE. eneo-virens, judging by the few

specimens sent.

DROMANTHUS.

Antennee 11-articulate, serrate. Caput paulo productum. Tarsi quadriarticulati, articulis 2° et 3° bilobatis ;

ungues simplices. Elytra ampla, postice vix latiora, abdomen tegentia. Corpus alatum.

The insects for which this genus is proposed would appear to hold some affinity with

Erichson’s genera Lemphus and Carphurus by reason of the four-jointed tarsi. They

have not, however, the shortened elytra of those genera. They have quite the facies

BIOL. CENTR.-AMEB., Coleopt., Vol. III. Pt. 2, April 1882. R

122 MALACODERMATA.

of Anthocomus. The larger species (opacus) is in form very like Collops, which it was

placed with in the Sallé collection.

1. Dromanthus opacus.

Niger vix nitidus; ore, epistomate, thoracisque lateribus late rufis; elytris opacis, fumosis, lineis duabus

abbreviatis elevatioribus. Long. 6 millim.

Hab. Mexico, Playa Vicente (Sallé).

This insect has very much the appearance of a Collops; but its colours are unlike

those of the members of that genus. It is entirely smoky black, with the front of the

head, the sides of the thorax, the coxee, and trochanters of the anterior and middle legs

red. The antenne are acutely serrate from the fourth to the tenth joint, the third joint

being angular internally. The basal joint is yellow beneath. ‘The palpi have their

apical joint oval, but a little truncate.

A single specimen of this is all I have seen.

2. Dromanthus decipiens. (Tab. VII. fig. 5.)

Niger, nitidus ; prothoracis lateribus lete rufis. Long. 43 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

This species is allied to D. opacus; but it is smaller, and the elytra especially are more

shining. These latter are distinctly punctured, the smaller and larger punctures very

irregularly mixed. The thorax is very even and orbiculate, wider than long, being

broadly truncate in front. The erect hairs are very sparingly present. ‘The basal and

one or two succeeding joints of the antenne are spotted with pitchy red beneath. The

fourth to tenth joints are acutely serrate. The coxe and trochanters of the first two

pairs of legs and the margins of the basal four ventral plates are yellowish.

Two specimens, one of which at least is a male, present no important difference.

This species is coloured almost precisely as Anthocomus plagiatus, and as a Clerid of

the genus Colyphus also.

8. Dromanthus quadrimaculatus. (Tab. VII. fig. 4.)

Rufo-ferrugineus, nitidulus ; antennis, pedibus, elytrorumque maculis duabus (una basilari quadrata, altera sub-

apicali lunata) nigris. Long. 4% millim.

Hab. Nicaragua, Chontales (Janson).

This is a very different-looking species from either of the preceding, both in colour and

in having the thorax rather smaller in proportion to the elytra, and the head rather more

produced in front. The chief characters are, however, the same: only four joints can

be distinguished in the tarsi; the antenne are serrate, their basal joints are reddish

beneath.

A single specimen.

DROMANTHUS.—PRISTOSCELIS. 123

4. Dromanthus jucundus. (Tab. VII. fig. 6.)

Niger, prothorace femoribusque rufis ; elytris lete cyaneis, maculis duabus (una subbasalari prope suturam,

altera transversa mediana) apiceque late pallide testaceis; antennis serratis, articulis quinque apicalibus

pallidis. Long. 44 millim.

Hab. Panama, Bugaba (Champion).

Head, mouth, and palpi black. Antenne with five or six joints at the base fuscous

above, pale beneath, the apical five quite pale. Thorax transverse, shining, yellow,

elliptical above. Elytra wider at the base than the thorax, and expanding to nearly

twice its width near the apex, shining steel-blue, with a spot on each near the base;

a broad but interrupted fascia not reaching the margin, and the apex rather broadly

whitish yellow, which there runs a little way up the suture; their surface is impressed

with irregular somewhat confluent punctures in the middle; and there is a very thin

brown pile which is only conspicuous at the margins of the thorax and elytra.

Only one specimen of this, which is perhaps the most beautiful of the Central-American

Melyride, has been received as yet.

Subfam. MELY RIDES.

The second section of the Melyride is not a very homogeneous group, embracing two

tolerably distinct types of beetles, which may roughly be separated into a more or less

hairy group, the Dasytides, and those which have the surface almost hairless and with

deeper sculpture, the Melyrides proper. For the purpose, however, of the present

work it will be sufficient to consider them a single subfamily, as the representatives

in Central America are few.

The first subsection is abundantly represented by species of small size, chiefly from

the warmer parts of Europe and the Mediterranean district; but a few (which are now

generally separated from Dasytes) occur in North America, but are nearly or perhaps

entirely confined to the Pacific side, and in South America to Chill.

The distribution of the true Melyrides is more universal. Chalchas and Astylus are

almost confined to South America, Melyris to Africa and India, Arthrobrachys to Chili.

Australia, Madeira and the Canaries, Mauritius, and Persia furnish each small abnormal

genera; and this is again the case in North America. The erection of the genus

Rhadalus, Leconte, into a subfamily is, of course, only the natural local expression of

this view.

PRISTOSCELIS,

Pristoscelis, Leconte, Col. N. Am. i. p. 198.

The North-American species of Dasytes which are furnished with appendages to the

claws are grouped by Leconte in this genus. I only include here three species which

have erect hairs on the body. They may also be separated from the species I place

ft 2

124 MALACODERMATA.

in the following genus by not having the front of the thorax finely raised and

margined.

About thirty species are recorded, all occurring in America north of Mexico.

1. Pristoscelis nigro-cneus.

Oblongus, postice paulo ampliatus, nigro-eneus, nitidus, dense sat fortiter punctatus; capite prothoraceque

nigro-pilosellis ; elytris breviter:cinereo-pubescentibus. Long. 4~5 millim.

Hab. Mexico (Sallé), Jalapa, Oaxaca (Hoge).

This and the next species are very nearly allied ; independently of size, however, they

are differently punctured. In the present species the thorax is smooth and shining,

covered with separate punctures, leaving room between each for another puncture.

The elytra are more closely punctured; and the punctures are sometimes confluent,

especially towards the base of the suture.

Five specimens were in Hoge’s collection from Jalapa, and two from Oaxaca, agreeing

closely in size. Eight in Sallé’s collection are smaller, but are otherwise similar.

2. Pristoscelis salvini.

Oblongus, subparallelus, nigro-sneus, nitidus; capite prothoraceque crebre, subtiliter, elytris minus dense sat

fortiter punctatis. Long. 3 millim.

Hab. Guatemaa, Volcan de Fuego (Salvin).

I have pointed out above the close puncturing of this species and its smaller size as

compared with P. nigro-eneus; the colour is very similar, viz. nearly black, with a

faint brassy reflection. The thorax has the small punctures so close as to be confluent

in places; and a very fine raised line can be traced in its centre from near the base to

the front.

Eight specimens of this species were captured by Mr. Salvin on flowers of Arenaria

bryoides, var. guatemalensis (cf. Botany, i. p. 70, t. 4), growing at the summit of the

Volcan de Fuego, 13,100 feet above the sea.

3. Pristoscelis pubescens. (Tab. VII. fig. 10.)

Oblongus, subparallelus, plumbeo-niger, nigro pilosellus, cinereo-pubescens ; capite prothoraceque subtiliter,

elytris parcius et fortius punctatis. Long. 53-6 millim.

Hab. Muxico, Guanajuato (Dugés, coll. Sallé).

The three specimens of this belong to a very distinct species, being considerably

larger than P. nigro-wneus, and with the thorax very much more finely and closely

punctured. The antenne are short, and have the five joints before the apical one

strongly transverse.

I have examined the membranous lobes of the claws of this species, and find they are

rounded at their apices, and are not quite so long as the claw itself.

LISTRUS. 125

LISTRUS.

Listrus, Motschulsky, Bull. Mose. iv. p. 389 (1859).

Listrus is the American representative of the European Danacea: they are little

beetles with depressed pubescence, but without erect hairs; and the front tibiee want

the sete which distinguish Pristoscelis.

Ten species have been described from California and the central States.

1. Listrus cupreo-nitens. (Tab. VII. fig. 8.)

Elongatus, subcylindricus, plumbeo-cinereus, cupreo-nitens, pube brevi cinerea densius vestitus, crebre obsolete

et vix distincte punctatus; elytris ad apicem attenuatis, subgibbosis ; pedibus et antennis nigris. Long.

4—4 millim.

Hab. GUATEMALA, Quiche Mountains, Quezaltenango, Capetillo (Champion).

The whole upper surface, and sometimes the upperside of the femora, is clothed

with a very fine, silky, close pubescence; and this, with the fine punctuation and

metallic leaden or coppery tint, give it a beautiful “frosted” appearance. ‘The antenne

have the apex of the basal and two or three of the succeeding joints pitchy red. ‘The

head is even, without impressions; the thorax widens suddenly in the middle, where

the width is rather greater than the length.

2. Listrus subcyaneus.

Elongatus, subcylindricus, paulo depressus, niger, supra subcyaneus, pube brevi parcissime vestitus, subtiliter

crebre punctatus; elytris ad apicem parum attenuatis, subgibbosus, Long. 33-43 millim.

Hab. Guatemata, Totonicapam (Champion).

This insect is amply distinguished from L. cupreo-nitens by being wider and more

depressed, and by being almost free from pubescence, as well as by its blue colour.

The antenne often have the apical joint pitchy red.

Ten specimens agree very closely in these characters ; two have the pubescence rather

more uniformly spread over the whole upper surface; but it is still much shorter and

thinner than in Z. cupreo-nitens. The head is usually more coppery than the rest of the

body ; and the thorax is transverse, with appreciable hind and front angles.

3. Listrus sneus.

Elongato-ovalis, convexus, antice posticeque attenuatus, niger, supra eneus, nitidus, crebre haud profunde

punctatus ; antennis pedibusque rufis, his tarsorum articulo ultimo, illis articulis tribus apicalibus et basali

nigris. Long. 43 millim.

Hab. Mexico, Oaxaca (Hoge); Guatemaia, Panima (Champion).

Though there are but two specimens of this species, its distinctness from any other

cannot, I think, be doubted, if the convex evenly oval form and the red legs are observed.

The only species to which it approaches is L. corallipes; but it is nearly twice as large,

126 MALACODERMATA.

and of a different shape. It is curious that both species have occurred in Mexico, as

well as in the district of Vera Paz. There are red-legged Listri described by Leconte ;

but I think it hardly likely these will prove identical with either of them. From

L. rotundicollis, Lec., the size alone separates the present insect.

4, Listrus versicolor.

Oblongus, parum depressus, niger, supra cupreo-nitens ; elytris subceruleis, minus crebre sat distincte punctatis,

subparallelis, apice subgibbosis, Long. 3-34 millim.

Hab. GuatEMALA, Ostuncalco (Champion).

This is a parallel, slightly depressed species, with a broadish head and subquadrate

thorax, of which the hind angles are broadly rounded. ‘The antenne and legs are

entirely black. The head and thorax are more coppery and more pubescent than

the elytra in my type, and in two or three other examples. The elytra are only a little

depressed at their apex, and therefore only slightly of the form I have called “ gibbous,”

by which I imply that the curvature, viewed laterally, suddenly changes at that point.

Five specimens from one locality are attributable to this species.

5. Listrus canescens.

Listrus canescens, Mannerheim, Bull. Mosc. ii. p. 248'; Dej. Cat. 8rd ed. p.125” (Dasytes); Leconte,

Class. Col. N. Am. i. p. 193.

Hab. UnttEpD States, California !2—Mexico, Alvarez Mountains (Dr. Palmer), Guana-

juato (Dugés, coll. Sallé); Guatema.a, Capetillo, Duefias, Quiche Mountains, Quezal-

tenango, Guatemala city (Champion).

The commonest, apparently, of the genus, and, if I am right in my identification,

widely distributed over the Pacific region, and possibly extending far inland. I can

see no difference between it and a specimen sent me by Mr. Belfrage, which was, I

believe, from California. There was a very considerable series of this sent by Mr.

Champion and Dr. Palmer.

The whole genus seem to delight in districts of high elevation.

6. Listrus punctatus.

Oblongus, subparallelus, niger, supra eeneus nitidus parcius punctatus, parce pubescens; elytra prothorace vix

latiora, apice rotundata. Long. 3 millim.

Hab. Muxtco, Jalapa (Hoge); Guaremana, Santa Rosa, San Gerénimo, Zapote

(Champion).

On the average rather larger than L. canescens, and at once to be separated from it

by its broader, more parallel, and bulkier form, by the coarser punctuation of the elytra

especially, and by the very sparse depressed pubescence, which with a strong glass is

easily resolved into separate hairs.

LISTRUS.—ASTYLUS. 127

7. Listrus corallipes.

Oblongus, parum depressus, niger, supra enescens, nitidulus, vix punctatus, parce pubescens ; antennis pedi-

busque rufis, his articulo ultimo, illis ad apicem nigris. Long 3 millim.

Hab. Mexico, Toxpam (Sailé); Guatnmwara, San Joaquin (Champion).

About the size of Z. canescens, but readily distinguished from any species described

here (except L. wneus) by the red legs. The almost entire absence of distinct punc-

tuation is also characteristic. The head is finely rugose at the base; and the thorax

under a very strong glass is seen to be covered with extremely close fine punctuation ;

and the elytra are rugulose transversely at their bases ; but the sculpture is all very fine.

About five or six joints at the base of the antenne are rusty, and the legs a fine coral-

red. ‘The coxe are black. |

Only two specimens from San Joaquin and one from Toxpam have come under my

notice.

8. Listrus metallicus.

Oblongo-ovalis, parvulus, niger, supra seneus, nitidus, parcius sat fortiter punctatus ; antennis basi, tibiis tarsisque

picescentibus, his articulo ultimo nigris. Long. vix 2 millim.

Hab. Guaremata, Cerro Zunil (Champion).

This is the smallest species I have yet seen; it is of a more metallic brassy colour

than any other, and is very distinctly punctured, with scarcely visible pubescence. ‘The

head is biimpressed just behind the insertion of the antenne; the elytra are evenly

rounded at their apex. The antenne have the basal joint black, then two red, and the

remainder black.

Two specimens only taken on Cerro Zunil.

ASTYLUS.

Astylus, Castelnau, Silb. Rev. Ent. iv. p. 32.

These are middling-sized or large insects adorned with fasciz or vitte, and with the

head subrostrate and the upper surface hairy. They have hitherto only been recorded

from South America : two species occur in Chili; one has been found in Patagonia; the

rest are distributed over the southern continent, nineteen species being all that are yet

described. JI have a specimen from Venezuela identical with the one here recorded.

1. Astylus vittatus. (Tab. VII. fig. 9.)

Niger; capite prothoraceque dense nigro-pilosis ; elytris rubris, sutura, apice, costis duabus in callo subapicali

conjunctis et callo humerali nigris. Long. 83-93 millim.

Hab. Panama, Volcan de Chiriqui (Champion).—Sovutn America, Venezuela (coll.

Gorham).

128 MALACODERMATA.

Head and thorax black, finely punctured, clothed with very fine, and rather sparingly

with depressed ashy-grey pubescence, and rather thickly with long, erect, black hairs ;

antenne black, the basal joint at its apex and the two following obscurely pitchy red.

Elytra long, rather parallel, and flattish above, with coarse, deeply impressed, evenly-

scattered punctures, and erect black hairs. Two distinct coste are to be seen, which

are always black, and connected before the apex by a black callosity; they are also

sometimes connected with the black suture by a streak from the humeral callus, from

which the outer costa commences, leaving a red basal spot. The intercostal red space

is widened at its apical end; and this portion shows indications of becoming detached ;

the lateral limb of the elytra is always red, and the apex black.

The figure is of one of six specimens taken by Champion on the Volcan de Chiriqui.

MELYRODES.

Caput breve, haud rostratum. Antenne perbreves, thoraci longitudine sequales. Pronoti margines subelevati,

ad latera crenulati. Elytra fortiter subseriatim punctata, lineis una vel duabus elevatioribus. Corpus

parvum.

This genus is very similar in so many points to Melyrosoma, Wollaston, that it will

be sufficient to point out those characters in which it differs. The head is shorter; and

the antenne are both much shorter, regard being had to proportion, and are also not

serrate. The body is less depressed ; and the elytra only exhibit faint traces of one, or

at the most two, raised lines. .

It is interesting to find an insect in Central America which so much resembles an

aberrant form from the Canaries.

I have not seen the two species of Melyris described by Leconte, but have no doubt

they will have to be separated from Melyris proper.

1. Melyrodes crenata.

Nigra, parum nitida; capite omnium creberrime subtiliter punctato; prothorace transverso, margine clevato,

disco convexo, subtiliter crebre punctato, lateribus crenatis, antice paululum angustatis; elytris postice

latioribus, fortiter punctatis. Long. 2 millim.

Hab. Guatemata, Las Mercedes, Cerro Zunil, Panajachel (Champion).

Black, with the exception of one or two joints at the base of the antenne, and the

knees and tarsi, which area little pitchy red. The antenne are short, their length

about equal to that of the thorax; their middle joints are angular within, but not

strongly serrate as in Melyrosoma. The thorax narrows in front, its greatest width

being shortly before the base. The elytra are very even—the raised lines, even when

present, being very faint,—rather distinctly margined, especially at the apex. ‘The

punctures are arranged in rows, but at the base are very close and confluent.

There are two specimens from Cerro Zunil, and one from each of the other localities, |

TILLUS. 129

Fam. CLERIDA.

For the purposes of this work the Cleride are treated as a simple family of the

Malacoderm tribe. The characters which separate them are so trenchant that Lacordaire

has given them coordinate rank with the whole of the Malacodermata. We have here,

as in the preceding family, carnivorous beetles, but with a firm corneous exoskeleton.

The antenne are of the true serricorn type, but are modified into the clavate form in

the majority of the genera. The Cleride are predaceous, feeding upon the larve, and.

perhaps upon the perfect insects, of many wood-boring beetles. Hence they are

generally of a cylindrical or depressed form, which permits of their penetrating the

bores of such insects. Some few, however, are rather inquilines in their habits, chiefly

among the Corynetides ; and some have the reputation of inhabiting, by preference, the

nests and cells of Hymenoptera, upon whose larve their own are nourished.

Subfam. 7ZLLIDES.

The Tillides are not so extensively represented in America as in the Old World and

the East. Two genera only are found in Central America. Hitherto a single species

of Tillus (T. collaris, Spin.) has been found on the northern continent, and there only

in the United States.

TILLUS.

Tillus, Oliv. Ent. ii. no. 22 (1790).

Many of the species referred to Tillus, and so recorded in the Munich Catalogue,

do not belong to the genus or subfamily. Typical Z%d/i occur in Europe and the

northern parts of Africa and in Arabia, also in India and the Eastern Isles as far as

Japan, and one, as noticed above, in North America.

1. Tillus occidentalis. (Tab. IX. fig. 1.)

Niger, nitidus, parce pilosus; capitis fronte, ore, antennis basi, palpis tibiisque rufo-piceis; elytris macula

subbasilari fasciaque ad suturam versus basin recurvata albis, eburatis; antennis 10-articulatis, articulis

quarto ad nonum fortiter dentatis. Long. 3-5 millim.

Hab. Mexico (Sallé); Guaremata, Chacoj, Pantaleon (Champion); Nicaracua,

Chontales (Belt).

Head and thorax densely and coarsely punctured, the former dark reddish in front,

the latter usually black, but sometimes tinged with red on the front margin and at the

base, where it is also suddenly contracted. The antenne are, in the smaller examples,

two thirds of the length of the body; the first joint swollen moderately, the second very

small, the third triangular, one angle internal, the fourth to the ninth strongly dentate,

the width being greater than the length; the tenth oval. The elytra are shining,

sparsely punctured, more strongly so at the sides and near the base. In the female (?)

the antenne are shorter in proportion, and the elytra do not cover the apex of the

abdomen. Only five examples have been captured, in addition to two in Sallé’s collection.

The specimen figured is an example from Chacoj.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, June 1882. S

130 MALACODERMATA.

CYMATODERA.

Cgmatodera, Gray, Griff. An. Kingd. i. p. 875 (1882).

Allowing for synonymous names, there are about thirty species of this genus at

present described, all but three (which are from South America—Colombia or Orinoco)

being found in the United States and Mexico. One species (C. modesta, Spin.?) is

said to be found in Chili; however that may be, Spinola gives Mexico as the country

of his species, but figures it under a different name.

The genus appears to reach its greatest development in size and number of species

in Central America, the series obtained by the collectors employed by the editors of

the present work exceeding what I have seen in any private collection or museum in

variety and number of specimens.

1. Cymatodera hopei.

Cymatodera hopei, Gray, Griff. An. Kingd. i. p. 875, t. 48. fig. 1*; Klug, Mon. i. p. 270°; Spin.

Mon. i. p. 141, t. 9. fig. 5°.

Notozxus giganteus, De}. Cat. ed. 8, p. 126.

Hab. Mexico 12%, Orizaba, Parada (Sallé), Guanajuato (Dugeés, coll. Sallé), Oaxaca

(Hoge).

This fine insect, one of the largest species of the family, appears rare. Both sexes

were in the Sallé collection. The males have the fifth ventral plate arcuate emarginate,

and the sixth narrow and polished; in the females the same segment is short and

rounded, and its surface is punctured.

2. Cymatodera sallei. (Tab. VII. fig. 13.)

Cymatodera sallei, Thoms. Mus. Scient. p. 49°.

Cymatodera emarginata, Chevr. Mém. sur la Fam. des Clerites, p. 8°.

Hab. Mexico 1, Vera Cruz (Sallé), Cordova (Saldé ”).

I do not think there is any doubt that these two descriptions refer to the same

species. The specimen from Vera Cruz (C. sallwi, Sallé coll.) is rather larger, and is

a little less distinctly marked than the two examples of C. emarginata. They are all

males, and have the apex of the elytra arcuate-truncate, a character which separates

this species from any other known to me. The figure is that of a Cordova specimen.

8. Cymatodera grandis.

Notoxus grandis, Sturm (coll. Sallé).

Fuscus; antennis, palpis tarsisque pallidioribus; elytris sordide pallidis, fusco marmoratis vel strigosis, seriebus

obsoletioribus punctorum gemellatis. Long. 14-16 millim. ¢ @.

Hab. Mexico (coll. Sturm), Guanajuato (Dugés, coll. Sallé), Puebla (Sallé).

CYMATODERA. 131

Thorax narrower behind than in front, widened on the sides in the middle, much

compressed laterally below the widest part, the disk finely wrinkled transversely above ;

elytra parallel, apex rounded; sutural angle nearly closed, without strie, but with

punctures in series, of which there is one sutural, then four pairs of gemellate series,

very obsolete in the female from Sturm’s collection—closer and more regular in three

examples which are, I believe, males of the same species. The male has the apex of

the pygidial plate canaliculate, the fifth ventral plate widely emarginate, with a carina

from each side of the excision.

This species appears to me to be allied to C. discoidalis, Chevr., but to be distin-

guished from it by being more parallel, by the more indeterminate fuscous markings of

the elytra, which are also less pointed at their extremity.

4, Cymatodera discoidalis. (Tab. VII. fig. 10, var. fig. 15,

Cymatodera discoidalis, Chevr. Mag. Zool. 1843, p. 10°.

Hab. Mextco!, Jalapa, Oaxaca, Cerro de Plumas (Hége).

This insect, of which the unique type has most obligingly been sent to me by

M. A. Chevrolat, is less parallel than the preceding; the elytra are more coarsely

punctured at their base, and have a distinct fuscous patch at two thirds, squarish, with

its diagonal formed by the suture. The elytra are widest at the centre of this patch,

and are rather hairy. In a male specimen from Cerro de Plumas the fifth segment is

arcuately excised, the sixth spoon-shaped, broadly rounded at the apex, and closely

punctured. A series of this species was collected at Oaxaca and Jalapa, and two or

three at Cerro de Plumas, by Hoge.

The type specimen is a female, and perfectly accords with a specimen from Oaxaca,

except in being a little less deeply coloured.

5. Cymatodera championi. (Tab. VII. fig. 12, ¢.)

Elongata, subcylindrica, picea nitida, parce pilosella; prothorace fere glabra; elytris profunde seriatim punc-

tulatis, apice subtruncatis; antennis longis, caput et prothoracem superantibus ; pedibus dilutioribus.

Long. 16 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Head considerably wider than the thorax ; antenne long, rather longer than the total

length of the head and thorax together in the male, in the female about equal in

length. Prothorax very smooth and shining, wider in front than at the base, all the

usual prominent parts rather strongly pronounced. The elytra in the male are more

parallel and narrower than in the female, with series of large deep punctures, which

are placed rather near together, and at equal distances from each other. The body.

beneath is pitchy black in the male; in the female it is rufous at the apex and sides of

the two last segments but one. The legs are pitchy black in the male, pitchy red in

S 2

132 MALACODERMATA.

the female. The genital in the male is produced as a bifid organ, with each side

grooved, and spoon-shaped at its apex above. This fine Cymatodera is in size and

colour rather like C. californica, Horn. It is, however, at once to be distinguished by

the large punctures of the elytra. Only two specimens have been seen by me.

6. Cymatodera pallidipennis.

Cymatodera pallidipennis, Chevr. Mag. Zool. 18438, p. 8°.

Hab. Muxtco! (Sailé, coll. Chevrolat); British Honpuras, Rio Sarstoon (Blanca-

neaux). &.

M. Chevrolat has kindly intrusted his type of this species to me; and I am able to

join with it, as identical, a single specimen which I had before doubtfully assigned to

C. championi as a very small variety of that species, but which I feel now convinced is

distinct. The size given by Chevrolat is, as he tells me, printed “ millim.” in error,

lines of the Parisinch being intended. The type, in fact, measures 103 millim.; Blan-

caneaux’s specimen 9 millim. The latter is rather more pitchy than the type, but has

rufous legs; three very indistinct pitchy-red fasciz are to be traced. It agrees with

C. championi in the punctuation of the head, thorax, and elytra, but differs from it in

having shorter antennz (both specimens are females), and particularly in the elytra not

being in the least truncate at their apex.

7. Cymatodera parallela.

Oblongo-elongata, picea; ore, antennis, palpis, abdominis apice, geniculis tarsisque ferrugineis; thorace

ineequali, obsolete punctato; elytris brunneo-testaceis, prope basin et apicem fuscis, et fasciis duabus

interruptis serratis (posteriore lata fere integra) piceis, striato-punctatis, striis ante apicem desinentibus.

Long. 8-10 millim. ¢ 9.

Hab. GuateMata, Cerro Zunil, San Gerénimo (Champion).

A species which will, I think, be easily recognized by its general parallel shape and

the dark posterior fascia, which has deeply indented edges. The head is rugosely

punctured, the rugze being longitudinal; it is not very large, but is wider than the

thorax. The thorax is of nearly even width before and behind, tolerably well con-

stricted behind; the two basal tubercles and two others just behind the anterior

constriction are evident, the punctuation and ruge very obsolete. The elytra are deeply

punctured in obsolete stria, terminating a very short distance from the apex; the

punctures are coarse and irregular, confluent often laterally as well as in the rows.

The legs are dark brown, with paler tarsi. |

A series of this species, all agreeing very nearly in colour and form, were taken at

Cerro Zunil; and a single specimen from San Gerénimo is, I think, the same species,

but is paler, and has pale legs and antennew, probably owing to immaturity.

CYMATODERA. 133

8. Cymatodera lunulata.

Ferrugineo-brunnea, subtus picea, parce pubescens; prothorace subtilius punctato; elytris fortius punctato-

striatis, striis fere integris, singulis ultra medium lunula fusca ad suturam conjuncta notatis ; elytris pro-

thorace plus quam duplo latioribus, apicibus integris rotundatis. Long. 9-11 millim.

Hab. GuatemaLa, San Gerdnimo (Champion).

The head in this species is small, being only wider than the prothorax by reason of

the eyes; it is thickly clothed with a coarse depressed pubescence, and is thickly punc-

tured at the base. The antenne are rusty red, as long as the head and thorax ; the

intermediate joints are not much longer than wide, the apical one as long as the two

preceding it. The thorax is very finely punctured and wrinkled in the middle; it is

rather strongly constricted below the middle, and is as wide at the base as in front.

The elytra are a little ovate and rather depressed ; the striz commence as series of

strong and closely packed punctures, and are in places crenate ; towards the apex the

punctures vanish, but the striz continue, the sutural ones uniting with the lateral (as

is the mode in this genus); but the apex itself only appears irregularly punctured.

The markings are confined to the central lunulate fascia, which has its concave side

towards the base, and is faintly margined with paler on that side. The abdomen is

piceous; but each segment is spotted on the side with rusty red.

A very considerable series of specimens were taken at San Gerénimo.

9. Cymatodera angulifera.

Oblongo-ovata, picea, elytris pallide ferrugineis nitidis, basi fasciisque tribus (mediana angulata, apicali liturata)

fuscis, profunde punctato-striatis, punctis oblongis, paucis, subzequidistantibus, ad apicem evanescentibus ;

pedibus ferrugineis, femoribus fuscis. Long. 7-9 millim.

Hab. Guatemata, Dueiias (Champion).

At first sight hard to distinguish from C. dunulata, and allied to it in several of its

characters ; it is, however, less pubescent, and, besides the dark base, three wavy fascias

are rather distinct. The central one is angulated on the centre of each elytron towards

the base, and is somewhat M-shaped; from the central point of the M the suture is

dark till it joins a subapical oblique fascia, which nearly meets the central one on the

margin. The subapical fascia is seldom apparent in C. lunulata; the abdomen is

similarly spotted. A series of this species were taken at Dueiias, all agreeing pretty

closely ; the colour of the underside and femora varies in depth from rusty red to

pitchy.

10. Cymatodera geniculata.

Cymatodera geniculata, Chevr. Rev. et Mag. Zool. 1874, p. 31’.

Hab. Guatemata!; Nicaragua (Sallé).

The type from Guatemala is before me: the punctures are large roundish pits, in

134 MALACODERMATA.

close series, vanishing a very little way before the apex, not ending in united strie. In

colour and form it is very like C. cylindricollis; but the sides of the thorax are more

compressed below the middle, and hence the sides are more prominent in the widest

part; it is also like C. undulata, Say, but is smaller, and the puncturing is quite

different. The Nicaragua specimen agrees. Sexual characters not apparent; it 1s

probable both are females.

11. Cymatodera nitida.

Picea, nitida, antennis, palpis, pedibus basi, tarsis, abdominisque apice obscure rufis; elytris testaceis, puncto

humerali, fascia irregulari basali, ad suturam et ad marginem latiore triente apicali et sutura tenuiter

piceis ; capite thoraceque minute et sparsim punctulatis, elytris punctis subequaliter remotis seriatim

impressis. Long. 7-8 millim.

Hab. Mexico, Capulalpam (Sailé) ; Guatemata, Capetillo (Champzon).

Distinguished by the shining head and thorax, which only show few and remote

small punctures under a powerful lens, and by the dark somewhat cruciform mark on

the basal half of the elytra and their entirely dark apex. Only two specimens have

been sent.

12. Cymatodera texana.

Ferruginea, supra picea; capite crebre, prothorace obsolete punctatis, hoe postice fortiter late constricto ;

elytris depressiusculis, piceis, striatis, striis crebre subcrenato-punctatis, fere integris, fascia mediana

apiceque rufis. Long. 7-8 millim.

Hab. Norvn America, Texas (Belfrage).—Mexico, Jalapa (Hége).

I have received several specimens of this insect from Mr. Belfrage as a new species;

and a single specimen, which only differs in the darker colour of the elytra, without any .

apical yellow spot, was taken by Hége. It is a very distinct species, perhaps in its

broad evenly striated elytra most resembling C. cylindricollis, but not so bulky and

more shining. The legs in Texan specimens are rufous; but in the Mexican one each

of the femora has a pitchy cloud on the thick part. It is also rather like C. geniculata

in colour ; but the striae and close obsolete punctures at once remove it from that species.

13. Cymatodera liturata.

Oblonga, postice paulo ampliata; capite thoraceque piceis, elytris pallidis, seriebus punetorum triente ante

apicem desinentibus; humero, plaga subhumerali, regione scutellari lituraque tenui ante apicem fuscis ;

antennis, palpis, pedibus abdomineque ferrugineis. Long. 10-12 millim. @Q.

Hab. Guaremata, Cerro Zunil (Champion).

This resembles C. Junulata in form, but is much less pubescent and differently

coloured: though impressed with series of strong punctures, it is not striate; the

punctures are often fuscous, and can thus be traced, even where quite obsolete, as

fuscous spots as far as the oblique fuscous band before the apex. The breast is

pitchy red.

CYMATODERA. 135

Two specimens were taken by Mr. Champion, in both of which the sixth segment is

a simple rounded ciliate plate.

14. Cymatodera bipunctata. (Tab. VII. fig. 16.)

Oblonga, postice paulo ampliata, ferruginea ; capite prothoraceque leviter punctatis ; elytris tenuissime pube-

scentibus, obsolete punctato-striatis, singulis post medium macula parva nigra notatis. Long. 10 millim.

Hab. Mexico, Oaxaca (Hége).

Sufficiently distinguished by the uniform ferruginous colour, only relieved by two

distinct black spots near the middle of the elytra. The head is covered with small

distinct punctures ; and the thorax has them scattered here and there, and is finely

wrinkled transversely near its base; but this sculpture is finer than usual. The elytra

are very obsoletely striate ; and the punctures are very irregular, being usually composed

of three confluent smaller ones ; these are often disposed transversely; and sometimes

the interstices are broken up by the smaller punctures; the apex is nearly smooth at

about four fifths.

Two specimens are all that have been sent.

15. Cymatodera cylindricollis.

Cymatodera cylindricollis, Chevr. Col. Mex. Cent. i. fase. 1°; Klug, Mon. Abhand. Berl. Acad.

1842, p. 271; Spin. Mon. i. p. 148, t. 10. fig. 3.

Hab. Mexico 1, Cordova, Capulalpam, Parada, Durasnal (Sallé), Guanajuato (Dugis,

coll. Sallé), J alapa (Hoge), San Luis Potosi (Dr. Palmer) ; Guatemaua (coll. Gorham),

Quiche Mountains (Champion).

A very distinct species, easily recognized by its rather robust build, antenne about

half as long as the body, very finely punctured and much compressed thorax, elytra

with striz continued to near the apex, and almost uniform brown colour, the head and

thorax and a large subapical patch on the elytra being usually darker.

It appears to be a common species in Mexico.

16. Cymatodera hogei.

Elongata, subparallela, nigro-picea, subtilissime punctata, nitida; corpore subtus elytrorumque apice rufo-

piceis; elytris punctato-striatis striis fere integris, fascia mediana pedibusque pallidis, geniculis fuscis,

Long. 17 millim. -¢ 9.

Hab. Mexico, Jalapa, Trapiche (Hége); GuaTemata, San Gerdnimo, Capetillo

(Champion).

Head as wide as the elytra at the base, finely and closely punctured; epistoma and

mouth, breast and sides of the abdomen ferruginous. Thorax shining; very fine rugee

are visible on the centre of the disk ; and in the Guatemala specimens (which are smaller

and possibly belong to a distinct species) the whole surface is distinctly punctured.

136 MALACODERMATA.

Elytra parallel, evenly rounded at their apex, regularly and deeply punctate-striate,

strie vanishing at one sixth before the apex; pitchy brown, in the middle a rather

oblique pale fascia, and the apex rusty red for one quarter the length of the elytron.

The male has the fifth ventral plate emarginate, the sixth an oblong truncate piece

notched at its extremity and thickened on the sides, with a corresponding pygidial

plate; the seventh or genital a bifid acute organ, like two lancets slightly recurved ;

this piece is often wanting, when the apex of the sixth plate only remains. The

female has the sixth plate obconic, the apex rounded, with a deep impression on

its ventral side.

This fine species, one of the largest of the genus, is most nearly allied to C. fasciifera,

Lec., of the species known to me, from which it differs inter alia in being less pubes-

cent, in having the legs almost entirely pale, the apex broadly ferruginous, &c.

Four specimens have occurred at Trapiche, and as many at Jalapa; in Guatemala

only one each at the two localities named, which are smaller and slightly different in

the punctuation, but are, I believe, specifically the same.

17. Cymatodera flexuosa.

Rufo-ferruginea, nitida ; prothoracis lateribus piceis; elytris depressis, postice ampliatis, flavis, basi seriatim

parce punctatis, plaga subhumerali lituraque subapicali piceis. Long. 12 millim. 9.

Hab. Mexico, Orizaba (Sallé).

The single specimen there is of this is apparently of a very distinct species. The

elytra are widened and flat above, but it is amply winged.

The head and thorax very finely and obsoletely punctured and wrinkled, pitchy red,

darker between the eyes and on the sides of the latter. ‘The elytra are shining, yellow,

with pitchy punctures; there is a stripe on the sides below the humeral callus, and a

broad, rather crescent-shaped mark meeting the margin in the apical half; the punctures

are small, distant, neatly arranged in rows in the basal half, only a very few passing

beyond the middle. The legs and underside wholly ferruginous. The antenne are

half the body’s length, with the palpi and epistoma rusty red.

18. Cymatodera marmorata. (Tab. VII. fig. 14.)

Cymatodera marmorata, Klug, Abhand. Berl. Acad. 1842, p. 271, nec Spinola, Mon. Atlas, t.9. f. 4.

Hab. Mexico, Catemaco (coll. Sallé).

The specimen figured is a single example so named in the Sallé collection, on what

authority I know not. It belongs to the “angustata” section, which have the elytra

oval, widest behind the middle. The thorax is very long, thickly and distinctly punc-

tured. The legs are pale, with the exception of the femora, which are strongly clavate

and dark in their apical half.

CYMATODERA. 137

19. Cymatodera undata.

Cymatodera undata, Spin. Mon. i. p. 142°.

Cymatodera marmorata, Spin. t. 9. fig. 4, nec Klug.

Hab. Mexico}.

Iam unable to identify this species. Spinola describes two males and one female,

possibly of different species. ‘The figure referred to has the name changed, as is often

the case in this work, in the Supplement, p. 123. C. marmorata, Klug, and C. undata,

Spin., are cited as synonymous; but which specimen is figured, or how the identification

was made, is left uncertain.

20. Cymatodera vagemaculata.

Cymatodera vagemaculata, Thoms. Mus. Scient. ii. p. 50°.

Hab. Mexico}.

Another uncertain species, although the peculiarly long apical joint of the antenne,

referred to by Thomson, should make it easy to recognize it. I have seen nothing

like it.

21. Cymatodera valida. (Tab. VII. fig. 11.)

Nigro-picea, nitida; capite magno, rugose et confluenter punctato; prothorace valde compresso, minus crebre

leviter punctato; elytris ovatis, fortiter seriatim punctatis, seriebus fere integris; macula subbasali fasciis-

que duabus testaceis, haud bene discretis ; antennis, palpis tarsisque rufis. Long. 11-13 millim. ¢ 9.

Hab. Guatemaa, Duefias, San Gerdnimo (Champion).

The figure is of a specimen from Dueiias.

The species of this section have the elytra more or less oval, and wider behind than -

at the base; some at least of them have no wings. C. valida is very nearly allied to

C. grossa, the species which follows; and both are allied to C. undulata, Say (a species

which occurs in the Southern United States, and perhaps in Mexico); but, besides the

different punctuation of the thorax, the legs are darker and the femora more robust.

The principal characters which separate C. valida from C. grossa are the finer punc-

tuation of the thorax, and that the pygidial segment of the abdomen is not deeply cut

out in either sex, but is truncate. The head is much wider than the thorax; the

mandibles very iarge and powerful, with some oblong punctures on the outside of their

bases. The labium and epistoma are red, and are invested with some few yellowish

hairs ; the punctuation of the crown is not deep, but very close, especially at the base ;

that of the thorax is distinct, but much less close, and not rugulose in any part, so that

it is very much more smooth and shining than in C. grossa. ‘The elytra are usually

rather cylindrical, narrowed at each extremity. ‘lhe underside of the body is dark

pitchy brown, the apical margins of each abdominal segment being narrowly pale, and

the ventral surface obsoletely punctured and wrinkled. ‘The pygidial plate is oblong,

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 2, June 1882. T

138 MALACODERMATA.

smooth, and squarely truncate at its apex; the genital of the male projects as a bifid

organ, between the two points of which is a mucro, probably the penis. In specimens

which I think to be the females, the apical dorsal segment is obconic truncate, the

ventral one very similar.

22. Cymatodera grossa.

Nigro-picea, subopaca ; capite sat magno, cum prothorace creberrime subrugose punctato ; elytris basi indeter-

minate, fascia lata mediana, alteraque subapicali interrupta distincte testaceis. Long. 10-13 millim. ¢.

Hab. Mexico, Jalapa (Hoge).

It will not be necessary to repeat the characters pointed out in which this differs

from C. valida; the pygidial plate is wide, and angularly cut out at the apex; the

ventral corresponding plate has its sides produced and the middle irregular; the fifth

ventral is arcuately emarginate, and bears a fine golden cilium in the centre of its

margin. The segments are sparsely punctured, the apex more thickly.

Two specimens are all that I have seen.

23. Cymatodera angustata.

Cymatodera angustata, Spin. Mon. i. p. 149', t. 7. fig. 1?

Cymatodera angustata, Leconte, New Spec. N. A. Col. p. 96°?

Cymatodera ovipennis et pilosella, Lec. loc. cit. *?

Hab. Unirep States ?; Catirornta !.—Mexico, Capulalpam (Sad/é).

The difficulty of determining the species of this genus is so great that I doubt the

correctness of the synonymy given above, as adopted by the American describers. The

single specimen which I refer to this agrees with C. pilosella in having the series of

“punctures continued to the apex; the sides of the thorax are strongly bisinuate; the

anterior constriction is not so great as in a specimen of “angustata” in my own

collection ; and the elytra are very pale, the oblong punctures (and sometimes the stria

between for a short distance) are fuscous. ‘The head and thorax very finely and closely

punctured, the disk with the usual fine wrinkles. It appears to be wingless.

24. Cymatodera depauperata.

Testacea, depressa, elytris postice paulo ampliatis; capite crebre punctato nigro, basi et ore rufo ; thorace rufo

lateribus nigris, subtilissime obsolete punctato ; elytris pallidioribus basi obsolete striato-punctatis, punctis

majoribus interspersis, fasciis et vittis indistinctis variegatis; corpore aptero. Long. 5-74 millim.

Hab. GuateMaLa, Totonicapam, Quiche Mountains, Calderas, Volcan de Agua

(Champion).

The head is nearly entirely black in many examples, closely subrugosely punctured ;

the antenne rather long, being half or more of the length of the body, dark fuscous,

with the apical joint half as long again as the one preceding, and acuminate. The

thorax is not wider in front than behind, the sides strongly sinuate and almost tuber-

CYMATODERA.—PRIOCERA. 139

cular in the middle. The markings of the elytra are variable and difficult to describe:

they consist of a lateral submarginal vitta, and a median and subapical fascia, which are

seldom more than undulating and interrupted bands of dark dashes or spots. The legs

are pale, with dark rings immediately below the knees.

This little species is similar to, but very much smaller than, C. fleruosa. It also

appears to me to be near to C. vagemaculata, Thoms. ; but the markings do not agree

with his description, nor is there any thing remarkable in the length of the apical joint

of the antenne, although it seems to be of the form described by him.

The specimens from the first two localities, eight in number, are larger, on the

average, than those from Calderas and Volcan de Agua; they are also more deeply

coloured.

Subfam. CLERIDES.

This subfamily contains the larger number of genera in the family, distinguished by

the tarsi, although 5-jointed, having the basal joint very short and underlying the base

of the second joint; it is readily seen sideways, but not from above. The eyes are

always cut out.

Genera of this section are found in every part of the world.

PRIOCERA.

Priocera, Kirby, Trans. Linn. Soc. xii. p. 889 (1818).

The species are all American, and nearly confined to the Tropics, only one being

found in the United States.

1. Priocera trinotata.

Priocera trinotata, Klug, Abhand. Berl. Akad. p. 283°, nec Spinola, Mon. ii. p. 180, t. 45. fig. 5.

Hab. Mexico, Cordova (Sallé); Guatemata, Mirandilla (Champion); Nicaragua

(Sallé), Chontales (Belt, Janson).

This is so named in the Sallé collection ; it is, however, distinct from the species

figured by Spinola, and has the lateral striz obliterated. It does not appear, however,

that Spinola had seen Klug’s type, but only a specimen sent him by Buquet. The

present insect is somewhat like P. spinosa, but has the apex of the elytra entire, and

three large yellow spots on each elytron—one basal, one lateral, which is square, and

one behind the middle, which is usually large, transverse, and sometimes a little

oblique; the apex is broadly castaneous.

9. Priocera pustulata.

Priocera pustulata, Spin. Mon. i. p. 118", t. 4. fig. 4.

Priocera flavoguttata, Chev. Rev. et Mag. de Zool. 1874, p. 32°.

Hab. Mxxico1, Catemaca, Cordova (Salle, Hoge), Yucatan? (Pilate); GUATEMALA,

San Joaquin (Champion); Nicaragua, Chontales (Belt, Janson).

T 2

140 MALACODERMATA.

There is a small basal pale spot, which is sometimes wanting, as it appears to be in

the figure given by Spinola. The apex is also wholly red. The name “¢rinotata”

appears for this on Spinola’s plate, because he considered it a variety of the species

figured by him afterwards on plate 46 ; it is evidently, however, quite distinct.

3. Priocera stictica. (Tab. VII. fig. 17.)

Picea, plerumque dense pilosula ; elytris rufo luteoque variegatis, maculis duabus, una laterali, altera juxta

suturam pone medium, approximatis, sepe conjunctis, apice integro luteo. Long. 9-10 millim.

Hab. Mexico, Oaxaca (Hoge, Salle); Guavemata, Teleman, San Juan, Calderas,

Cerro Zunil, Pantaleon, Panajachel (Champion); Nicaracua, Chontales (Belt); PANAMA,

Volcan de Chiriqui (Champion).

The figure is of a specimen from Chiriqui.

In this species the eyes approximate, the space between and above is thickly punc-

tured, while the crown of the head is finely and transversely wrinkled; the thorax has

two evident tubercles on the front of its disk; the elytra are rather coarsely punctured

in rows, and the series are evident on the sides, but the punctures are fewer and larger

there. Their pattern is very variegated with pitchy and red-brown; and the basal,

lateral, and postmedian spots are whitish yellow; the two latter closer together than in

P. miersana or P. hypocrita, and often joined, forming a hook; the apex is clear

yellow. A variety (if it does, indeed, belong to this species), the one taken at Oaxaca

by Sallé, has the elytra of a uniform brown pitchy colour, excepting the apex and the

pale spots, the postmedian one being more linear and oblique, and rather more remote

from the lateral one, than in typical stictica; this is more like P. hypocrita, Chev., but

in other points it more resembles the present species.

4. Priocera clavipes.

Picea, antennis, pedibus basi elytrorumque apice dilutioribus; his piceo rufoque variegatis, maculis duabus

parvis, una laterali, altera post medium, flavis; elytris apice integris, femoribus fortiter clavatis. Long.

6-64 millm.

Hab. Guatemasa, Capetillo, Chacoj, San Juan, Senahu, Zapote (Champion); PANAMA,

Volcan de Chiriqui (Champion).

This differs from PP. stictica not only in its much smaller size, but in its being

frequently of a much paler colour, which extends to the thorax. The elytra have

always a dark but interrupted fascia in the middle, in which lies the lateral pale spot,

and bounded behind by the postmedian spot, and a narrow arcuate fascia to repre-

sent the termination of the dark portion of the elytra before the pale apex. These

markings are very evident in a little series from Senahu. The specimens from the

other localities are mostly single ones, and are very like small P. stictica ; but will, I

think, prove to be distinct. The femora are very sharply clavate.

COLYPHUS. 14]

COLYPHUS.

Colyphus, Spinola, Mon. i. p. 1338.

Derestenus, Chevr. Mag. Zool. 1843, p. 13.

Distinguished from the allied genera which follow by having the antenne serrate,

without any distinct club. Certain genera seem very plastic and to lend themselves

readily to mimicry; this is the case here, rendering the species hard to discriminate,

from the excessive variability of one or two of them. It will be noticed below that

the species named and figured by Spinola probably belong to one or two types. I have

not yet seen any from a more southern country than Colombia.

Section A. Antenne serrate, the two subapical joints not wider than those preceding them.

1. Colyphus ventralis, (Tab. VII. fig. 18.)

Ater, breviter sat dense pubescens, capite rufo, occipite nigro-lineato; prothoracis lateribus rufis, antice flavis ;

femoribus apice, segmentis ventralibus duobus penultimis totis, secundo et tertio ad marginem tantum

rufis. Long. 9-11 millim.

Hab. Muxico, Jalapa (Hoge); GuateMata, Duefias, San Gerdénimo (Champion).

Var. Elytrorum sutura margineque laterali pallidis.

Hab. Mexico, Oaxaca (Hoge).

The puncturing of the whole upper surface, but especially of the elytra, is remarkably

close and intricate in the species of this genus; and they are wholly devoid of the

shortened and deeply-impressed striz so usual in the Cleride; this, together with the

colour, gives this insect a singularly close resemblance to some Lampyride, which the

two or three pale segments beneath heightens. The variety from Oaxaca equally

resembles those varieties of species of Photinus in which the margins are pale.

2. Colyphus quadrilineatus. (Tab. VII. figg. 20, 21.)

Derestenus quadrilineatus, Chevr. Mag. Zool. 1843, p. 14, t. 108°; Lacordaire, Gen. Atlas, t. 46.

fig. 2°. .

Derestenus similis, Thoms. Mus. Scient. p. 57° (sec. Sallé).

Derestenus orthopleuridus, Thoms. loc. cit. (Sallé coll. partim).

Hab. Mexico!?%, Cosamaloapam, Tuxtla, Playa Vicente, Vera Cruz (Saillé); Cerro

de Plumas, Jalapa (Hége); Guatemaa, Chacoj, Teleman (Champion).

The figure 20 in our Plate is taken from a specimen from Vera Cruz; and fig. 21 is

a variety with the lateral margins concolorus, and very faint vitte near the suture,

standing under the name orthopleuridus, Thoms., in the Sallé collection.

Allied to the last in the slightly expanded elytra; the fourth and fifth ventral plates

and the margin of one or two preceding are pale yellow. The femora are annulated

with dusky.

142 MALACODERMATA.

3. Colyphus telephoroides.

Ater, parum nitidus ; capite flavo, occipite et infra oculos nigro ; prothoracis lateribus angustius rufis. Long.

6-8 millim. <6.

Hab. Guaremara, Capetillo, San Gerénimo, Sinanja valley (Champion).

In form and sculpture very nearly allied to C. ventralis; but the abdomen is wholly

black, and the species is smaller. The specimen from San Gerénimo varies slightly in

having the basal half of the lateral margin narrowly pale.

4. Colyphus nigrifrons.

Derestenus nigrifrons, Chevr. Rev. et Mag. Zool. 1874, p. 88°.

Derestenus orthopieuridus, Thomson (Sallé coll. ex parte).

Hab. Muxtco, Juquila, Cordova, Panistlahuca, Oaxaca (Sallé).

The head and thorax are variable: in some specimens from Panistlahuca the former

is entirely yellow and the thorax unspotted ; in other specimens the thorax has a central

vitta ; in the type and specimens from various localities the thorax has a single spot on

the front margin. The very evenly serrate antenne and yellow femora are good

characters. The elytra are rather parallel, never vittate, but rarely with a shoulder-

stripe ; the abdomen is black.’

5. Colyphus mutabilis. (Tab. VII. fig. 23, & Tab. VIII. fig. 1.)

Derestenus mutabilis, Chevr. Rev. et Mag. Zool. 1874, p. 38’.

Colyphus flammeus, Gorham, Trans. Ent. Soc. Lond. 1878, p. 162°.

Hab. Mexico !?, Juquila (Boucard, coll. Sallé), Playa Vicente (Hoge).

This differs in colour from C. nigrifrons; but it is variable; the typical specimens

have the elytra yellow, with the apex and a scutellar spot black, and the disk of the

thorax black. The femora are black.

6. Colyphus lateralis.

Derestenus lateralis, Chevy. loc. cit. p. 38°.

Colyphus marginatus, Gorham, loc. cit. p. 162”.

Hab. Mexico 12, Juquila (Boucard, coll. Sallé); Panistlahuca (Sad/é).

The specimen from Panistlahuca is doubtfully assigned to this species; it has the

breast yellow, as well as the legs, excepting the tibie and tarsi; and the submarginal

stripe is rather further from the margin than in the two typical examples described by

M. Chevrolat and myself.

7. Colyphus floralis, (Tab. VII. fig. 25.)

Niger, ore, antennis, prothorace (basi excepta), pectore pedibusque rufis; elytris flavo marginatis, vittaque

angusta cum margine juxta apicem conjuncta flava. Long. 6 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

COLYPHUS. 143

Head black, the front yellow ; antenne not much serrate, but without any club, clear

red: two impressions close together between the eyes. Thorax short, the sides much

rounded between the constricted lines. Legs entirely red. The elytra have the margin

yellow, and a vitta, which, commencing in the centre of the base, runs rather close to

the suture, and then turns outward to join the pale margin, also clear yellow. The

sharpness of these markings gives this species a very distinct appearance. The abdomen

is black, with the posterior margins of the segments narrowly whitish.

A single specimen is all that I have yet seen.

Section B. Antenne with the three terminal joints forming a lax, indistinct club.

8. Colyphus distinctus. (Tab. VII. fig. 19.)

Derestenus distinctus, Chev. Rev. et Mag. Zool. 1874, p. 38°.

Hab. Mexico, Yucatan !, Cordova, Playa Vicente (Sallé); Cerro de Plumas (Hége) ;

GuatEMALA, Senahu, Zapote (Champion) ; Panama, Volcan de Chiriqui (Champion).

More parallel than C. quadrilineatus; the pale vitte equidistant from the suture and

margin ; thoracic vitta usually entire, wide at the base; femora pale; knees and tibie

dark, posterior pair sometimes pale ; abdomen pale.

9. Colyphus vittipennis.

Derestenus vittipennis, Chev. loc. cit. p. 389+.

Hab. Mexico 1, Cordova, Tuxtla (Sallé), Cerro de Plumas (Hoge).

Differs from C. distinctus by the black abdomen, a single spot on the front margin of

the thorax, and by the narrower form.

10. Colyphus signaticollis. (Tab. VII. fig. 22.)

Colyphus signaticollis, Spin. Mon. i. p. 185", t. 5. fig. 5.

Colyphus cinctipennis, Spin. loc. cit. p. 136°, t. 5. fig. 6.

Hab. Cattrornia!?; Mexico, Cerro de Plumas, Oaxaca (Hoge); GuaTEMALA, Cape-

tillo, Zapote, San Gerdnimo, Teleman, Purula (Champion); Panama, Volcan de Chiriqui

(Champion).

The species which I believe is to be referred to this name is very variable, but is in

general to be recognized by its rather long elytra, which are thickly and confluently

punctate, and which, varying from nearly entirely ferruginous red to steel-blue, have

nearly always more or less of a bluish tint. The thorax is sometimes yellow, with one

frontal spot ; sometimes the disk is black. The legs are generally testaceous red, with

the knees and tibiz more or less black. ‘The underside is also variable, being quite red in

paler examples, or with a black abdomen in others. The figure is of an example from

the Volcan de Chiriqui, in which the elytra are of a deep blue, and the legs are black.

The specimen from Oaxaca agrees very closely with the figure in Spinola, tab. 5.

fig. 5, while two from Cerro de Plumas seem referable to fig. 6 on the same plate.

144 MALACODERMATA.

11. Colyphus limbatus.

Colyphus limbatus, Gorham, Trans. Ent. Soc. Lond. 1878, p. 161°.

Hab. Mexico, Juquila (Bowcard, coll. Sallé)—Vunuzunta ' (Thieme, coll. Oberthiir).

Scarcely separable from the preceding species, perhaps. In the type and in the

specimens (which, I think, are identical with it) from Mexico the elytra are very narrowly

margined with yellow to the apes, and the legs are black.

12. Colyphus criocerides. (Tab. VIII. fig. 2.)

Ferrugineus, prothorace macula antica, elytris macula scutellari, alteraque in medio quadrata, tibiis, tarsis

abdomineque nigris, antennis nigris; clava ferruginea, pectore infuscato. Long. 7 millim.

Hab. Mexico, Cerro de Plumas (Hége).

Agreeing closely in size and form with C. signaticollis, and possibly only a remar kable

variety of that species, but so unlike any of the other varieties as to suggest its really

being distinct. The head yellow, with only the mouth a little infuscate. The thorax

and elytra of a bright rusty yellow, with the black marking more distinct than usual.

The antenne are distinctly clubbed, the club yellow. The specimen figured is the only

one I have seen.

13. Colyphus orthopleuridus.

Derestenus orthopleuridus, Thoms. Mus. Scient. p. 57 *.

Hab. Mexico, Cordova, Juquila, Orizaba (Sal/é).

I am at a loss to point out characters by which this can be separated from C. signati-

collis. There are four specimens in the Sallé collection: the head varies; the thorax

has the usual frontal spot; the elytra are rather long, immaculate; the legs pale, with

dark tibie and tarsi. It might be confused with C. guadrilineatus, but that the antenne

are not serrate and the elytra are subparallel.

14. Colyphus bicolor.

Sallea bicolor, Chevr. Rev. et Mag. Zool. 1874, p. 86°.

Hab. Mexico, Vera Cruz! (Sallé); Oaxaca (H6ge).

This insect cannot be retained in the genus Sallea, of which S. necrobioides is the

type; for the labial palpi alone are hatchet-shaped. It comes in very well here. The

antenne are scarcely clubbed, but are not serrate.

15. Colyphus collaris.

Derestenus collaris, Chevy. Mémoire, 1876, p. 12’.

Hab. Muxtco! (Haag Rutenberg, coll. Chevr.).

Unseen by me; and I cannot identify it by the description.

PHONIUS.—SYSTENODERES. 145

PHONIUS.

Phonius, Chevrolat, Mag. Zool. 1843, p. 11; Mémoire, 1876, p. 5.

Apparently only distinguished from Colyphus by its more robust form and distinctly

clubbed antenne. The only species yet described is— .

1. Phonius sanguinipennis. (Tab. VII. fig. 24.)

Phonius sanguinipennis, Chev. loc. cit. p. 12*, t. 107.

Hab. Mexico, Chalchicomula ! (Sallé).

The specimen figured is a single one in the Sallé collection from the locality quoted,

which is, I think, the place, between Vera Cruz and the city of Mexico, where the

type specimen was originally captured. It only differs from it in having a small sub-

scutellar black spot.

PCGiCILOCHROA.

Pecilochroa, Chevrolat, Mémoire, 1876, p. 5; Gorham, Cistula Ent. 1876, p. 73.

The typical species have the antenne clubbed, and have a short convex thorax and

cylindrical body, singularly like Dasytes. One species (Clerus thoracicus, Oliv.) is found

as far north as Canada.

1. Pecilochroa cyanipennis.

Cleronomus cyanipennis, Klug, Mon. p. 307°.

Cleronomus dasytoides, White, Cat. Cleridz, p. 50’.

Hab. N. America, California !.—Mexico?, Puebla (Sal/é), Guanajuato ( Dugés, coll.

Sallé), San Luis Potosi (Dr. Palmer).

The smaller specimens, which also have the elytra and (in one example) the thorax

dark blue, are C. cyanipennis, Klug. Dr. Palmer took a series which all have green

elytra ; and I have specimens from other parts of Mexico similarly coloured, and one

equal to them in size, with the thorax blue.

SYSTENODERES.

Systenoderes, Spinola, Mon. i. p. 180.

The single species of this genus is a smoother insect, and more convex and widened

behind than any of the foregoing. It is only found in Mexico.

1. Systenoderes amenus.

Systenoderes amenus, Spin. Mon. i. p. 131", t. 8. figg. 1, 2.

Hab. Muxtico 1, Cordova, Toxpam (Sallé).

Apparently rare, but perhaps overlooked from its resemblance to some of the common

Galerucide.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, June 1882. Oh

146 MALACODERMATA.

AULICUS.

Aulicus, Spinola, Rev. Zool. 1841, p. 74; Mon. i. p. 828.

This genus is here retained for the American species, the Australian insects usually

referred to it being considered distinct, as I have already suggested (Cistula Ent.

1876, p. 84), and as, indeed, Spinola anticipated would have to be done. The two

genera have, in fact, no particular resemblance. The typical species is not in any

collection I have examined ; it was in that of Dupont.

1. Aulicus nero.

Aulicus Nero, Spin. Mon. i. p. 330°, t. 27. fig. 5.

Hab. Mexico}.

I have not seen this species; but it is evidently nearly allied to the following one.

2. Aulicus monticola, (Tab. VIII. fig. 18.)

Sallea monticola, Dugés (sec. Sallé coll.).

Niger; capite rufo, antennis, palpis et mandibulis nigris, supra rugose punctato; prothorace parcius fortiter

punctato, griseo-piloso, rufo, margine antico et vitta mediana lata nigris; elytris chalybeis, humeris

fasciaque infra medium ad suturam interrupta et margine ante fasciam rubricatis; abdomine ante apicem

rufo. Long. 8-13 millim.

Hab. Mexico, Guanajuato (Dugés, coll. Sallé), Tupatero (Sallé).

Spinola has remarked on the resemblance of A. nero to Serriger reichei; and a speci-

men of the present species which I obtained from Mr. Waterhouse’s collection bore

that name. It has a good deal the appearance of Trichodes viridifasciatus.

Both pairs of palpi are terminated by a broadly triangular joint. The antenne have

the joints preceding the club simple. The eyes are finely faceted. The tarsi with the

basal joint not distinct from above; the 2nd, 3rd, and 4th with well-developed lamelle ;

the claws simple.

3. Aulicus coffini,

Serriger Coffint, White, Cat. Cleride, p. 53°.

Sallea Coffint, Chevr. Rev. et Mag. Zool. 1874, p. 86; Gorham, Cist. Ent. 1876, p. 72.

Hab. Mexico! (Coll. Gorham ex Saunders), Puebla (Sal/é).

Neither this nor A. monticola have any affinity or resemblance to Sallea necrobioides, °

Chevr., which has only the labial palpi with a hatchet-shaped terminal joint.

Two specimens are in the Sallé collection, and two in my own. It is also in

M. Chevrolat’s and other collections, but is rare.

SERRIGER.—THANASIMUS. 147

SERRIGER.

Serriger, Spinola, Mon. i. p. 170 (1844); Lac. Genera Col. iv. p. 441.

A genus about which there is room for a good deal of doubt. Lacordaire had not

seen the unique type, and makes the remark that the figure in no way conforms with

the description. I do not, however, see that there is any important discrepancy.

I have already shown that 8. coffini, White, is not congeneric with this type.

Lacordaire mentions another species which he had seen, but without naming or

describing it.

1. Serriger reichei.

Serriger Reichei, Spin. loc. cit. p. 1717, t. 12. fig. 3.

Hab. Mexico}.

THANASIMUS.

Thanasimus, Latreille, Gen. Crust. et Ins. i. p. 270; Lac. Gen. Col. iv. pp. 445, 446 note 2; Gorh.

Cist. Ent. 1876, p. 73.

The typical species of Thanasimus (7. e. species of the T. formicarius type) are con-

fined to the northern hemisphere; but the tropics, and even temperate parts of the

southern latitudes, produce species which at present cannot well be separated. The

genus, however, is not numerous in species. In the Munich Catalogue forty-four

are recorded; but at least ten of these have to be eliminated, the Chilian species

belonging to Epiclines or Dereutes, Chevr.

1. Thanasimus dubius.

Clerus dubius, Fabr. Syst. El. i. p. 280°.

Thanasimus ruficeps, Spin. Mon. i. p. 189’, t. 14. fig. 2.

Thanasimus dubius, Klug, Mon. p. 292; Lec. Syn. p. 24.

Hab. Nort America !?, United States—MeExico (coll. Gorham).

A specimen in my own collection is all I have seen of this insect from Central

America; there is, however, no improbability of its occurring there.

2. Thanasimus nigriventris.

Thanasimus nigriventris, Leconte, Proc. Ac. Phil. 1861, p. 351%.

Hab. Norra America, California’, Vancouver’s Island (coll. Gorham).—MExico,

Yolotepec (Sallé) ; Guaremana, San Gerdnimo (Champion).

Mr. Champion met with eight specimens of this insect at San Geroénimo. It may be

distinguished from 7’. nubilus, Klug, to which it is very nearly allied, by the abdomen

being black, and by the elytra not being serially punctured at their bases. When in

fine condition the whole of the apex is covered with grey pubescence ; but most of the

specimens I have seen are so worn as to show only two indistinct wavy lines of grey

hairs across the elytra.

148 MALACODERMATA,.

8. Thanasimus? subviolaceus.

Niger, nitidus; elytris subviolaceis, tuberculato-asperis, fascia obliqua ante medium ex maculis duabus albis

formata, alteraque ante apicem indistincta e pube grisea consistente ; prothorace modice elongato, antice et

postice attenuato et constricto. Long. 9 millim.

Hab. Costa Rica, Volcan de Irazu, Rio Sucio (Rogers).

A species not very satisfactorily placed here, yet better so than in Clerus. It is

rather depressed, shining, black, with a faint brassy tint upon the underside. The head

is sparingly punctured, the thorax scarcely with distinct punctures, but a little rough-

ened, and with a flat depression extending from the middle of the anterior constriction.

The elytra have a tubercular elevation on each side of the scutellum ; the small rough

points are pretty evenly distributed over the whole surface, and are interspersed with

confluent obsolete punctures, which are noticeable on the white spots also. The

antenne are of moderate length, and have a three-jointed lax club. Only two examples

of this curious species have come under my notice.

CLERUS.

Clerus (Geoffroy), Fabricius, Genera Ins. Mant. p. 230 (1777) ; Mantissa, Ins. p. 125; Spinola,

Mon. i. p. 284; Lacordaire, Genera Col. iv. p. 446; Gorham, Cist. Ent. 1876, p. 76.

Fabricius was the first to use this name with a generic signification. I take the first

of his species, which has not been employed as a type for any other genus, viz.

C. ichneumoneus, for the type of Clerus. The only other course is to abandon the term

Trichodes, and rename the present genus. The genus is peculiar to America, and

almost confined to the Tropics ; species from the United States are not typical, and ought,

perhaps, to be assigned to Thanasimus, to which they are very nearly allied. The species

are, however, abundant, both north and south of the Isthmus of Panama.

I have not at present found it convenient to divide the genus into sections; but the

species are grouped, as far as possible, according to their natural affinities.

1. Clerus badeni.

Clerus badeni, Gorham, Cist. Ent. 1876, p. 80°.

Hab. Mexico}, Minas Viejas (Dr. Palmer), Cerro de Plumas, Paso del Macho (Hége),

Tehuantepec (Sumichrast) ; Vera Cruz (Moufler 2).

Allied to C. 4-signatus, Say, rather larger and more depressed, the subapical white

band not so distinct ; allied also to C. mexicanus, but less hairy, and the basal tubercle

is wanting. There are usually two minute white spots of hair on each side of the

scutellum. ‘The original specimen was sent me by Dr. Baden. Eight specimens have

been sent from the localities above mentioned; and all agree with the type, varying

very little inter se.

CLERUS. 149

2. Clerus vulpinus.

Clerus vulpinus, Gorham, Cist. Ent. p. 81}.

Clerus boucardi, Chevr. Mémoire, p. 13’.

Hab. Mexico !2, Puebla (Sallé), Cerro de Plumas (Hége) ; GuaTeMaua, San Geronimo

(Champion).

My own description was published before M. A. Chevrolat’s, as he states in the note

on the titlepage? that his Memoir, although deposited with the French Entomo-

logical Society in 1875, was not published before the end of 1876.

This species, although very close to C. mexicanus, and although I have joined it with

that species (Trans. Ent. Soc. Lond. 1878, p. 164), is, I now think, distinct. It differs

in having the abdomen black, in the thorax being entirely covered with tawny yellow

hair, with the apex of the elytra of the same colour ; the central fascia is often entire,

but in one specimen from San Gerénimo is narrowly interrupted at the suture. The

type specimen I owe to Dr. Baden’s liberality. I have one from the collection of

W. W. Saunders; and there are two in Sallé’s collection. Mr. Champion met with one

at San Gerénimo.

3. Clerus assimilis.

Clerus assimilis, Chevr. Mag. Zool. 1843, p. 17°.

Clerus vulpinus, var.?, Gorh. loc. cit. p. 817.

Hab. Mexico!2, Cordova (Sallé); Guatemata, San Gerénimo, Senahu, Cahabon ;

Panama, Bugaba (Champion).

This is so very close to the preceding species that I am still doubtful if they ought

to be separated. The smaller size and smaller thorax, together with the interrupted

fascia, seem constant.

The thorax in the Bugaba specimens recently sent has a black band across the

middle. ‘The apex is nearly always obliquely pubescent, the black fascia preceding it

being wider on the margin, while in C. vulpinus the fasciz are straight.

4. Clerus mexicanus. |

Clerus mexicanus, Castel. Silb. Rev. iv. p.44’; Klug, Abhand. Berl. Akad. p. 299*; Spin. Mon. i.

p- 248, t. 27. f. 2. .

Clerus silbermanni, Chevy. Mag. Zool. 1843, p. 217.

Clerus semiochraceus, Chevr. Rev. et Mag. Zool. 1874, p. 41°.

Hab. Mexico !23,.Paso del Macho, Cerro de Plumas (Hége), Vera Cruz, Orizaba

(Sallé) ; GuareMaLa, San Gerdnimo ; Nicaragua, Chontales (Belt) ; Panama, Volcan de

Chiriqui, Bugaba (Champion).

150 MALACODERMATA.

5. Clerus luscus.

Clerus luscus, Klug, Abhandl. Berl. Akad. p. 299°.

Hab. Mexico 1, Parada (Sal/é).

One of the largest species in the genus.

6. Clerus sphegeus.

Clerus sphegeus, Fabr. Mant. Ins. i. p. 125"; Klug, loc. cit. p. 298 ; Spin. Mon. i. p. 270, t. 27. f. 4.

Clerus sobrius, Walker, Nat. Vancouv. 1866, ii. p. 326”.

Clerus arachnodes, Klug, loc. cit. p. 299°; Spin. loc. cit. 1. p. 187, t. 8. f. 2.

Hab. North America, Vancouver’s Island ?.—Mexico%, Chalchicomula (Sai/é),

Guanajuato (Dugeés, coll. Sallé).

I have no hesitation in uniting the species cited above. A specimen of C. sphegeus

from Vancouver’s Island, in my own collection, only differs from Mexican specimens of

C. arachnodes in being rather larger and in having the legs black; in C. arachnodes

they are reddish at the base. It appears a rare species: there are three specimens

in the Sallé collection from San Andres (Chalchicomula), and one from Guanajuato,

which is quite denuded, or lacks the pale fascia of ashy hairs.

7. Clerus viduus.

Clerus viduus, Klug, loc. cit. p. 297°.

Clerus erythrogaster, Spin. loc. cit. 1. p. 272, t. 27. £. 8.

Clerus rufiventris, Chevr. Rev. et Mag. Zool. 1848, p. 11.

Clerus cuprescens, Gorh. Cist. Ent. 1876, p. 81’.

Hab. Norta America }.—Mexico?, Oaxaca, Orizaba (Sallé).

In fine examples the elytra are clothed with a fine ashy pubescence, with two denuded

spots on each; but in rubbed ones these quite disappear. ‘The legs, metasternum, and

abdomen are red, the tarsi darker. Rare.

8. Clerus bombycinus.

Clerus bombycinus, Chevr. Col. Mex. Cent. 1. fasc. 1 (1833)’.

Clerus eneicollis, Spin. loc. cit. 1. p. 254, t. 24. f. 1.

Hab. Mexico}, Cuernavaca, Parada, Puebla, Yolos (Sad/é) ; Guanajuato (Dugeés, coll.

Sallé), Jalapa, Cerro de Plumas (Hége); Nicaragua, Chontales (Belt).

9. Clerus nodulifer.

Clerus mutabilis, Chevr. Rev. et Mag. Zool. 1874, p. 40.

Clerus gibbifer, Chevr. MS. coll. Sallé.

Clerus nigromaculatus, Chevr., et distinctus, Chevr. (Sallé coll.).

Hab. Mexico, Cordova (Sallé); Guaremata, Cerro Zunil, Panima, Teleman, Miran-

CLERUS. 151

dilla, San Geroénimo; Nicaraeva, Chontales (Belt); Panama, Bugaba, Volcan de

Chiriqui (Champion).

Chevrolat seems to have intended to change the name of this species, because muta-

bilis had been already used by Boheman for a South-African insect. I do not think

the term gibbifer is expressive of the two raised nodules at the base of the elytra, so

characteristic of many Mexican species, and which are particularly prominent here. A

large number of specimens were taken at Cerro Zunil by Champion, and many at

Chontales by Belt. The latter vary very much in size, and also in the darkness of

the thorax and base of the elytra, which are from pitchy brown to light red.

10. Clerus quadrinodosus. (Tab. VIII. figg. 4, 19.)

Clerus quadrinodosus, Chevy. loc. cit. p. 42".

Hab. Mexico, Cordova!; GuatemaLa, Aceituno; Nicaragua, Chontales (Belt);

Panama, Volcan de Chiriqui (Champion).

The figure 19 is of a specimen from Cordova in Sallé’s collection; No. 4 is of a

single specimen from the Volcan de Chiriqui, and represents what I believe is a

variety of the same species. The specimens in Sallé’s collection are quasi-types, one of

them being labelled by M. Chevrolat; but it would be hard to identify it from his

description. The head and front of the thorax are black. The elytra have the humerus

a little raised, and a more prominent tubercle near the scutellum; the white short basal

striga (hereafter called the “ basal striga”’) is slightly raised, and runs into the tubercle,

which is bordered with black below, or is blackish itself. ‘There is a black spot on

the margin before the white fascia. The black band before the apex is usually united

at the suture, forming a fascia, but is sometimes (as in the variety from Chiriqui) a

suborbiculate spot.

11. Clerus x-album. (Tab. VIII. fig. 22.)

Nigro-fuscus, subopacus; elytris striga basali parva maculaque infra hane conjunctim litteram X formantibus,

fascia mediana subhamata ad suturam paululum recurvata et interrupta, alteraque ante apicem obliqua

recta albidis, pedibus rufo-piceis. Long. 53-63 millim.

Hab. Guatema.a, Zapote, El Reposo (Champion).

Var. Prothorace (margine antico excepto) rufo-piceo; elytris basi rufis, striga basali alba minuta, sed maculis

prope scutellum inconspicuis.

Hab. Brivise Honpvras, Rio Sarstoon (Blancaneaux); Nicaracua, Chontales (Janson) ;

Panama, Bugaba, David (Champion). .

When a sufficient number of this species are placed together, it appears a very

distinct one; but I have found others which are very difficult to separate from it. The

characters on which I rely are the rather robust form and slightly opaque surface,

152 MALACODERMATA.

the thorax being punctured though very closely, the form of the central fascia, which

is indented on its basal side, where it narrows to the suture, the projecting angle

touching, or nearly reaching, the lower subscutellar spot, and the presence of an actual

white subapical fascia (not merely a fascia of pubescence) ; the elytra are substriate at

the base, and at the humerus the punctuation is distinct though close and confluent.

I think these points will distinguish this, with the aid of the figure. The latter is that

of a Zapote specimen. The base of the elytra is not tuberculate.

12. Clerus cautus.

Nigro-piceus, nitidus ; elytris striga basali minuta eburnea elevata, maculaque hamata juxta scutellum sub-

flava, fascia mediana, ad suturam recurvata, albida, apice cinerea pubescente ; pedibus et antennis piceis

obscuris. Long. 5-7 millim.

Hab. Guatemata, San Juan, Panzos, Teleman, Chiacam, Senahu (Champion).

The elytra are longer than in C. #-album, and the whole insect is more shining; the

elytra have a faintly raised tubercle, in which the basal striga terminates. The pale

mark which forms the bottom of the hook curves backwards towards the humerus ; this

character will always separate this from any of its allies yet known to me.

13. Clerus bicarinatus.

Niger, nitidus; prothorace antice valde constricto, elytris striga basali eburnea, valde elevata, fasciis duabus,

una pone humerum incipiente ad suturam oblique provecta indistincta, altera mediana versus suturam

retrorsum curvata, paulo elevata, pallidis. Tibiis, palpis antennisque basi apiceque rufis. Long. 7 millim.

Hab. Nicaracva, Chontales (Belt); Panama, Volcan de Chiriqui (Champion).

Very close to C. cautus, yet apparently distinct. It differs in being rather more

shining ; the first fascia is nearly straight, oblique, not united with the basal striga,

which is longer and more raised than in its allies. The second fascia is a little raised.

There is no subapical one; and the apex is only narrowly and obliquely clothed with

ashy pubescence. The legs are usually darker than in C. cautus, yet the tibie and

trochanters are more or less distinctly red, and two specimens from Chiriqui have them

entirely red. This species is allied to C. bélobus, Spin., a South-American species.

14. Clerus cinereus. (Tab. VIII. fig. 5.)

Niger ; capite prothoraceque subsequalibus, opacis, pube cinerea vestitis, nigro-pilosulis ; elytris subnitidis puncto

basali eburneo, fascia obliqua alteraque mediana curvata concinne ornatis, apice late brevissime cinereo-

pubescente ; pedibus, antennis et palpis nigris. Long. 5-7 millim.

Hab. GuateMa.a, Las Mercedes (Champion); Panama, Volcan de Chiriqui (Champion).

The figure is taken from a specimen from Las Mercedes.

Head and thorax very even, the latter with scarcely any impressed transverse line in

front; the base narrowed, much as in C. zebra, to which it is allied, but than which it

is less robustly built. The slaty blue pubescence which clothes the apex of this

CLERUS. 153

species is very characteristic. The basal striga is confined to an elongate point; the

first fascia seldom unites with it (but does so in the specimen figured). ‘The elytra are

smooth, without striee. |

Only five specimens have been sent.

15. Clerus zebra.

Clerus zebra, Chevr. Mag. Zool. 1843, p. 231.

Hab. Mexico}, Cordova (Sallé) ; Oaxaca (Hoge); Guatema.a, Capetillo, San Gero-

nimo (Champion); Nicaragua, Chontales (Belt).

The basal striga is sometimes raised, as in C. bicarinatus ; in the Mexican examples

it is nearly lost in the pale subscutellar line which unites with the first oblique fascia.

16. Clerus tubercularis, (Tab. VIII. fig. 20.)

Piceus, nitidus, elytrorum basi femoribusque rufis, illis tuberculo basali nigro bene elevato, apice pube grisea

micante vestito.

Var. elytris totis piceis, vel capite et prothorace toto rufis, vel pedibus piceis fere nigris. Long. 43-5 millim.

Hab. Mexico, Cordova (Sal/é); Guatemata, Cerro Zunil, Capetillo, Aceituno

(Champion).

A Cerro-Zunil specimen is figured.

This little species is very distinct, belonging to a section of the genus which have

the elytra a little depressed behind the scutellar region ; in the present species the legs

are very long, but the body rather short, very much more so than in the following

species. The head and thorax are rather rough, and clothed with scanty pile of

irregular length, the legs being also pilose. The basal tubercle is very conspicuous,

the humerus being also a little raised. ‘The elytra are flattened below this part, yet

the suture isa little elevated, and there is an obsolete costa running from the humerus,

in a sinuate manner, along the side of each elytron, as far as the commencement of the

grey apical pubescence. ‘he basal half of the elytra, with the exception of the

tubercle, is usually rufous, and the apical half is always pitchy. Viewed from behind,

the shining pubescence of the apex is only visible on each side; but this only depends

on the way the light falls, for the whole apex is clothed with a similar hair. Several

examples occurred at Cerro Zunil, a few only at Capetillo. There are three in Sallé’s

collection of the variety with the head and thorax red, to which variety a single speci-

men from Aceituno belongs.

17. Clerus concinnus. (Tab. VIII. fig. 12.)

Clerus concinnus, Gorh. Trans. Ent. Soc. Lond. 1878, p. 165!.

Hab. Guatemata, Chinautla! (Salvin), near the city, Duefas, Capetillo, San

Geronimo (Champion).

Described from a single specimen, which was rather smaller than the average of the

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, October 1882. xX

154 MALACODERMATA.

large series which have been since collected by Mr. Champion, some of which measure

6 millimetres in length. It is an extremely narrow graceful species, and exhibits the

same depression and contraction of the elytra before the apex as the preceding and

following species.

A specimen from San Gerdénimo is shown in the Plate.

18. Clerus contractus. (Tab. VIII. fig. 13.)

Cleri concinni affinis at minor. Niger, opacus ; prothorace elytris antice latiore, postice angustato ; elytris medio

depressis et contractis, basi tuberculo atripiloso, medio fascia alba arcuata suturam non attingente.

Long. 4 millim.

Hab. Guatemata, El Tumbador, Volcan de Atitlan, San Gerdnimo (Champion).

The specimen figured is from El Tumbador.

Even smaller than the average size of C. concinnus, which it is allied rather closely

to, but from which it differs in not having the elytra red at the base. The thorax

is larger in proportion. In addition to the basal tubercle, the elytra have a raised black

point above the white fascia, within which, between it and the fascia, there is a very

polished shining space, which has the effect of throwing down the fascia, so as to make

the elytra appear more depressed there than they are in reality. The apical portion is

evenly rounded and bluish black, without cinereous hairs. This species has a singularly

ant-like look, and, indeed, closely resembles an ant of the genus Cryptocerus from the

same district. About a dozen examples have occurred.

19. Clerus beatus. (Tab. VIII. fig. 23.)

Niger, subnitidus, capite antice, antennarum basi, prothorace postice elytrorumque dimidio basali rufis ; elytris

tuberculo nigro, fascia mediana retrorsum curvata alteraque subapicali recta albidis, apice plumbeo.

Long 5 millim.,

Hab. Mexico, Playa Vicente (Hoge); Guatemata, San Gerénimo (Champion).

The specimen figured is from San Gerdnimo. ;

This elegant little species is to be recognized, among the series with a basal tubercle,

by its very depressed form. The basal joint of the antenna is red. The elytra are

obsoletely substriate ; the first white fascia is bordered with black towards the base.

In the Mexican example only the humeral region is red. There is no other species to

which this is very nearly allied: it is wider than C. concinnus; nor is there any sign of

a tubercle in the middle of the elytra, as in the two preceding species.

Two specimens are all I have seen.

20. Clerus sanguinipes.

Clerus sanguinipes, Chevr. Rev. et Mag. Zool. 1874, p. 14°.

Hab. Mexico!; Panama, Volcan de Chiriqui (Rid0é).

A single specimen is all that I have seen.

CLERUS. 155

21. Clerus spinole.

Clerus spinole, Lec. Proc. Ac. Phil. vi. p. 280.

Hab. Mexico (coll. Gorham).

This fine species is not in any of the recent collections from Mexico, nor in Sallé’s ;

there is a specimen, however, in my own, obtained from that of W. W. Saunders.

22. Clerus pictus. (Tab. VIII. fig. 7.)

Niger, nitidus, elongato-ovalis ; elytris obsolete crebre punctatis, substriatis, medio latioribus, singulis maculis

tribus, scilicet vitta brevi basali, macula mediana laterali transversa, alteraque pone medium suture pro-

piore albido-flavescentibus, apice tenuissime cinereo-pubescente. Long. 10 millim.

Hab. Guatemata, San Gerdénimo (Champion).

A single specimen only captured.

23. Clerus decussatus.

Clerus decussatus, Klug, Abhandl. Ak. Berl. p. 296°.

Clerus hopfnert (Dej.), Spin. Mon. i. p. 2567.

Hab. Muxico 1? (coll. Gorh. &c.), Cuernavaca (Sallé), Guanajuato (Duges, coll. Sallé).

Var, Elytris fascia prima albida prope suturam interrupta.

Clerus decussatus, Spin. Atlas, t. 25. f. 1.

Clerus ornatus (Dup.), Spin. Mon. i. p. 257, t. 25. f. 2.

Hab. Mexico, Milpas (Forrer), Juquila (Boucard, coll. Sallé), Cerro de Plumas (Hége).

I have no hesitation in uniting both the forms cited above as one species; and they

are so placed in Sallé’s collection. The fig. 1 in Spinola appears to have been taken

from one of this variety, although, in the description of C. hopfneri, there is a note

(25, p. 257) to the effect that the interruption of the fascia is too pronounced in the

figure. ‘Two of the specimens from Milpas have the elytra with the base black as well

as the apical half, while one has it red as usual.

The black head and legs will always separate it from the following species.

24. Clerus rutilus.

Elongatus, antice angustior, ferrugineo-rufus, subopacus ; elytris postice nigricantibus, fascia mediana subrecta,

interrupta, ad suturam latiore, alteraque ante apicem albidis, sutura rufescente ; abdomine obscuro. Long.

7-10 millim.

Hab. Muxico, Cerro de Plumas (Hége).

Tip of the mandibles black; head with the antenne and palpi, thorax, breast, and

one third of the base of the elytra dull brick-red. The thorax is not so wide as in

C. decussatus ; and the puncturing is more close. The elytra are closely and confluently

punctured in their basal half; they commence to be black before the first fascia: the

Jatter is not recurved at the suture as in either C. decussatus or C. salvini, but is thick-

x 2

156 MALACODERMATA.

ened both upwards and downwards; the punctures on this fascia are individually

distinct. The fascia before the apex is as in C. salvini; the suture between the two

fascize is usually of the same colour as the base; the fasciee themselves are whitish or

creamy yellow. |

25. Clerus salvini.

Clerus Salvini, Gorh. Cist. Ent. 1876, p. 78°.

Hab. Guatemaua}, near the city (Salvin, coll. Gorh.), Duefias, San Gerénimo, Cerro

Zunil, Las Mercedes (Champion); Costa Rica (Van Patten).

This species is abundantly distinct from C. decussatus. The first fascia is placed

nearer the apex of the elytra, and is not so strongly recurved at the suture. ‘The entire

basal half of the elytra is red, in which respect C. salvini resembles C. opifex; but it is

not shining, being coarsely yet hardly confluently punctured. Three lines are indicated

on each elytron, in the interstices of the punctures. The first fascia is very narrowly

bordered with black on the basal side.

I have seen a very few examples in which the thorax is reddish. A large number of

this insect were found by Champion at Duefas and San Geronimo.

26. Clerus opifex. (Tab. VIII. fig. 3.)

Clerus ocellatus (Dugés, coll. Sallé).

Niger, nitidus; thorace brevi; elytris lete rubidis, macula subapicali rotundata nigra, antice per fasciam

pallidam arcuatam cincta, apice cinereo-pubescente, fascia subapicali alba, brevi, haud distincta. Long.

53-8 millim.

Hab. Mexico, Guanajuato (Dugés, coll. Sallé), Cerro de Plumas (Hége); GUATEMALA,

San Gerénimo (Champion); Nicaragua, Chontales (Belt).

Head and thorax densely clothed with erect pile; that on the head and front of the

thorax greyish, but that on the central portion is black. Elytra shining, thickly and

irregularly punctured, the punctures somewhat disposed to form rows. ‘The first fascia

is only represented by a paler arcuate band, which margins the roundish black spot,

and is nearer the apex than the fascia in C. salvini. The apex itself is clothed rather

thickly with grey depressed hairs, which hide the short pale oblique band which is still

present, and is disposed in such a manner as often to make the black portion appear

annulated. The specimen named C. ocellatus in Sallé’s collection is a small one thus

marked; but in others the two black marks are joined at the suture. The legs are

black, densely clothed with grey hairs.

I do not adopt Dugés’s name for this species, because C. oculatus, Spin., applies to

C. rosmarus, Say, a somewhat similarly marked but quite distinct species. A con-

siderable series were taken by Hoge, about six by Champion at San Gerdnimo, and one

by Belt at Chontales.

The specimen figured is one from Cerro de Plumas.

CLERUS. 157

27. Clerus cylindricus. (Tab. VIII. fig. 6.)

Clerus cylindricus, Gorh. Trans. Ent. Soc. 1878, p. 164).

Hab. Guatemaua, near the city (Salvin +), Capetillo, Duefias (Champion).

An abnormally coloured species, the markings of which are difficult to define. The

head is dark pitchy; the thorax the same, but reddish in front and sometimes on the

disk. The elytra are mottled with dark and pitchy brown and whitish yellow. The

suture and a spot on each side above the middle, and another subapical one, are pitchy,

varying in depth. ,

Many specimens of this species have now been taken by Champion. It was origi-

nally described from a single one taken by Mr. Salvin, in the environs of the city of

Guatemala, at 5000 feet elevation.

The specimen figured is one from Capetillo.

28. Clerus anceps.

Niger, nitidus; pectore rufo, prothorace quam elytra angustiore, margine antico albo; elytris basi rufis, fasciis

duabus albis—una mediana leviter arcuata, altera ante apicem recta integra; elytris basi subtiliter granu-

losis prope scutellum leviter elevatis. Long. 9 millim.

Hab. GuateMaLA, Cerro Zunil (Champion).

Head and thorax very narrow, smooth, with very few hairs; antenne black, with the

basal joint reddish beneath ; the front margin of the thorax is distinctly, and the hind

margin very narrowly, white. The elytra are shining, but rough at the base ; punctures

are not present; near the suture in the middle a few grauulations are to be seen,

arranged in rows. ‘The first white fascia is bordered with black, which shades off into

the red of the base; it is a little recurved and scarcely interrupted by the sutural

margin. The space between it and the subapical fascia is black, with a faint violet

tinge. The second fascia is nearly straight and quite entire. Legs black, with the base

of the femora and trochanters white.

This species (of which I have only seen a single specimen) has a very striking likeness

to C. laportei, but it is essentially distinct in several of its characters. The narrow

thorax and its colour, and the black legs, are sufficient to prevent their being confounded.

C. laportei, Guérin, is a Brazilian species, and, although attributed to Mexico by Spinola,

was so, I believe, incorrectly. I possess Guérin’s specimen, which appears to have been

unique in his collection, and which is from Brazil.

29. Clerus guatemalensis.

Niger, nitidus; antennis articulis quatuor primis, palpis elytrorumque basi rufis ; his fascia paulo post medium,

sutura interrupta, sat lata, flava, apice cinereo-pubescente ; prothorace quam elytra angustiore. Long.

9 millim.

Hab. Guarema.a, Sinanja valley (Champion).

Head and thorax clothed with rather dense hairs, but their surface, which is black,

quite visible, narrower than the elytra, very obsoletely punctured. LElytra with rather

158 MALACODERMATA.

less than a third at the base red, closely and confluently punctured, only slightly tumid

on each side of the scutellum; the latter is black. A wide black fascia separates this

part from the central fascia, which is of the shape of, and placed much as, the fascia in

C. mexicanus and the allied species. The apex is clothed with grey hairs, but is black

beneath them. The legs and underside are black, with the exception of the apex of

the abdomen, which is red.

A single specimen is all that has been sent.

30. Clerus recurvatus. (Tab. VIII. fig. 17.)

Niger, nitidulus; capite prothoraceque nigro-pilosellis; elytris macula basali prope scutellum fasciaque lunata

ad suturam fortiter recurvata flavis, apice cinereo-pubescente. Long. 73 millim.

Hab. Guatemata (coll. Sallé).

Rather densely pilose, very finely punctured, entirely black, except the markings on

the elytra, the latter scarcely punctured ; a yellow spot at the base a little raised and

shining, pear-shaped, with its apex away from the base. The fascia is wide on the

margin, as nearly as possible in the middle, but strongly reflexed, and not touching the

suture. ‘There is a subapical fascia of cinereous down, and the suture at the apex is

downy.

This species appears to me to approach C. letus, Klug, judging from his description.

A single specimen is all that I have seen.

31. Clerus letus.

Clerus letus, Klug, Abhandl. Ak. Berl. 1841, p. 301°.

Hab. Mexico }.

This was not recognized by Spinola; M. Chevrolat did not know it; nor have I been

able positively to identify any species with it. There is, however, a specimen in Sallé’s

collection, No. 562, which I think may be it, resembling C. recurvatus, but with the

marking smaller and the fascia less arcuate, not turning down the suture.

This specimen is from Tuxtla.

32. Clerus vulneratus.

Clerus vulneratus, Klug, loc. cit. p. 802}.

Hab. Mexico}, Puebla (Sallé), Parada (Boucard, coll. Sallé).

The specimens of this from Puebla are named “ vulneratus, Klug,” in Sallé’s collec-

tion, while those from Parada are labelled “ signatus, Klug.” Both are referable to

one species, and agree very nearly with the description of the former; I refer a different

species to the latter. The Puebla specimens have the ground-colour of the elytra

bluish, the Parada ones coppery. The blood-red fascia is very broad on the margin,

CLERUS. 159

being carried backwards there towards the apex, and equal in breadth to half the

length of the elytra.

33. Clerus signatus.

Clerus signatus, Klug, Abhandl. Ak. Berl. 1841, p. 301'.

Clerus bisignatus (Dej.), Spin. Mon. i. p. 272, t. 23. fig. 5%.

Hab. Muxtco!2, Capulalpam(Sallé), Parada (Boucard, coll. Sallé), Jalapa (Hoge).

Quite distinct from C. vulneratus. The central interrupted fascia is pale yellow,

much narrower on the margin, widened to about equal width near the suture, but con-

stricted in the middle. The elytra are greenish or faintly brassy.

I have one specimen of this from Dr. Baden, which I believe is from Mexico. It

agrees very well with Spinola’s figure and with Klug’s description.

34. Clerus hogei.

Niger, nitidus; capite crebre subtiliter punctato ; prothorace elytrorum fere latitudine, subgloboso ; elytris basi

fortiter rugose punctatis, substrigosis, fascia lata ad suturam interrupta ante medium sita, sanguinea.

Long. 8 millim.

Hab. Mexico, Cerro de Plumas (Hége).

The blood-red lateral spot or fascia in this species is quite differently placed, and of

a different form, from that in C. vulneratus : it commences just below the shoulder ; and

its hind margin is in the middle of the margin of the elytra, and is carried straight

inwards; the front margin is rounded. The rugosity of the basal two thirds of the

elytra is also a good distinguishing character.

Although there is only one specimen of this insect, 1 have no doubt it will be easily

recognized.

35. Clerus venator.

Clerus venator, Chevr. Rev. et Mag. Zool. 1843, p. 18.

Hab. Mexico, Cordova (Sallé).

A doubtful species. Certainly the exponent of it in Sallé’s collection is a distinct

species from any I have seen; but it does not belong to the C. mexicanus group, not

having any basal tubercles. It agrees fairly well with the figure in Spinola, t. 23. fig. 2,

the pale apex, as there shown, representing pubescence alone.

The synonymy given by Chevrolat himself (Rev. et Mag. de Zool. 1874, p. 10) needs

corroboration.

160 MALACODERMATA.

36. Clerus zsopius. (Tab. VIII. fig. 8.)

Niger, vix nitidus, sublevis, depressiusculus ; elytris fascia lata ad suturam anguste interrupta, ad marginem

angustata, lineaque parva nec suturam nec marginem attingente flavis. Long. 8 millim.

Hab. Nicaragua, Chontales (Janson).

Deep black, short; thorax nearly as broad as the elytra at the base, with a scanty

pile; the constricted basal part small. Elytra with rather prominent shoulders; a

large, yellow, somewhat triangular spot nearer the base than the apex, nearly reaching

the suture, and with one of its angles on the margin, but truncated there; and a very

narrow: oblique line before the apex yellow.

A single specimen, which has lost the abdomen, is all I have seen. It is very

distinct.

37. Clerus insidiosus.

Niger, sericeus, pube cinerea fulvaque varius ; capite nigro, vix pubescente; prothorace elytrorum latitudine,

cinereo-sericante, disco depresso; elytris tuberculo basali nigro-piloso, humeris subrugulosis, fascia

mediana alba versus apicem recta, versus basin in medio elytri angulatim ampliata, apice indeterminate

albo-pubescente ; pedibus (presertim posticis) longis. Long. 9-10 millim.

Hab. Panama, Bugaba, David (Champion).

This very singular insect resembles some of the varieties of C. mexicanus, and has,

like it, a raised tubercle at the base of each elytron; but the length of the legs, espe-

cially of the hinder femora and tibiw, remove it from any species of this genus, and

perhaps indicate a generic difference, the hind femora being long enough to reach or

pass the apex of the elytra. But the claws, antenne, palpi, and other characters are as

in typical Cleri. |

The antenne have the basal joint and the second joint partly reddish ; the palpi are

black. The thorax is narrower behind and more produced than in C. meaxicanus or its

allies, and hence appears more detached from the rest of the body; and this, together

with the long legs, gives this species the appearance of the Australian genus Olesterus.

The central fascia is white, bone-coloured in the middle, and thickly punctured and

eburated at its edges; it is followed towards the apex by a band, nearly denuded, of

the greenish-black colour of the base of the elytra; the apex is clothed with bone-

white hairs.

_ Two specimens were taken at Bugaba, and one at David, by Champion.

38. Clerus cuneatus. (Tab. VIII. fig. 16.).

Niger, parum nitidus, pube brevi plumbea vestitis, nigro-pilosellus, omnino crebre subtiliter punctatus; elytris

fascia valde angulata alteraque recta spatium deltoideum nigrum cingentibus. Long. 8-10 millim.

Hab. Mexico (coll. Gorham), Peras (Sailé).

Black, nearly covered with a very fine, leaden, silky pubescence. The disk of the

CLERUS. | 161

thorax is denuded, the suture and base of the elytra partly so. Basal and second joints

of the antenne red beneath ; palpi pitchy, black at the tips. The first fascia singularly

angulated, like the letter A with its apex towards the base of each wing-case; the

transverse fascia does not quite touch the suture or margin, so that the enclosed black

triangle is connected with the apical part, which is leaden.

I possess a specimen from the collection of my late friend W. W. Saunders, Esq. ;

and there are two in Sallé’s collection from Peras.

39. Clerus nigrocinctus.

Clerus nigrocinctus, Klug, loc. cit. p. 294".

Clerus bicinctus, Spin. Mon. i. p. 260, t. 24. fig. 4, nec Klug.

Hab. Mexico ', Puebla (Sallé), Huanchinango (Truqgut).

Var.? pectore pedibusque nigris.

Clerus bicinctus, Klug, Abhand. Ak. Berl. 1841, p. 297.

Clerus errans, Gorham, Cist. Ent. 1876, p. 80.

The Puebla specimens, two in number, have the breast a little infuscate, but the legs

red, except the tarsi. A single specimen from Huanchinango has the breast red; it

is only, however, the size of the other specimens. My specimen from Dr. Baden is the

only one I have seen with entirely black legs and breast. I do not now think it will

prove distinct.

40. Clerus varius.

Clerus varius, Klug, loe. cit. p. 296°.

Hab. Mexico}.

“ Clerus rufus; thorace cingulis duabus rufis nigro-marginatis ; elytris nigris fasciis maculisque flavis. Long.

lin, 32.” (Klug.)

I have not been able to identify this insect; and it seems difficult to interpret the

diagnosis which I quote as to the colour of the thorax. It was unknown to Spinola.

41. Clerus atriceps. (Tab. VIII. fig. 21.)

Clerus atriceps, Gorh. Cist. Ent. 1876, p. 82°.

Hab. GuateMata, Aceituno (Salvin'), Capetillo, Duefias, Zapote, San Gerdnimo,

Las Mercedes, El Tumbador, Cerro Zunil (Champion).

Var. elytris maculis quatuor nigris, pallide cingulatis.

Hab. Panama, Volcan de Chiriqui (Champion).

A very large series of specimens have now been sent of this species, showing that it

is subject to a good deal cf variation. In a few from Zapote, Las Mercedes, and Cerro

Zunil the head is red; in some the black at the base is divided, forming two subhumeral

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, October 1882. Y

162 | MALACODERMATA.

spots; but in all, except the remarkable variety from Chiriqui, the posterior black band

is entire or not quite touching the outer margin. |

Although this insect has somewhat the facies of Cleronomus amenus, I do not think

it is more than a mere resemblance ; yet it is very unlike the general appearance of the

present genus.

42. Clerus trogositoides.

Clerus trogositoides, Spin. Mon. i. p. 269, t. 27. fig. 1.

Hab. Mexico.

Unknown to me.

43. Clerus albofasciatus.

Clerus albofasciatus, Chevr. Rev. et Mag. Zool. 1843, p. 24°.

Hab. Mexico}.

Apparently a species belonging to the group which follows—black, shining insects

with little pubescence and narrower and more cylindrical thoraces than in the preceding

species. This species is not, however, included by Chevrolat in the catalogue of species

in his collection (Rev. et Mag. Zool. 1874, p. 10); and I have not seen it.

44. Clerus scutellaris.

Clerus scutellaris, Chevr. Rev. et Mag. Zool. 1874, p. 45°.

Hab. Mexico, Orizaba! (Sallé), Jalapa (Hoge).

A series of specimens were taken by Hoge; there were four in Sallé’s collection ; and

I have received it from M. Chevyrolat.

45. Clerus leucomelas.

Tillus leucomelas, Chevr. loc. cit. p. 30°.

Hab. Mexico, Orizaba ! (Sailé).

This in colour resembles the preceding, but is quite different in form. The elytra

are not compressed at the sides nor arched behind, as in C. scutellaris; and the thorax

is much wider in front. The elytra have three linear spots of white hairs arranged in

a fascia in the middle. It is, of course, not a Tillws. One specimen in Sallé’s collec-

tion is thus named, and agrees with Chevrolat’s description. | |

46. Clerus nitidus.

Clerus nitidus, Chevr. Rev. et Mag. Zool. 1848, p. 24°.

Hab. Mzxico, Toxpam }, Cordova (Sailé).

CLERUS. 163

I have the type specimen at this moment before me. It has the thorax with scarcely

any punctures visible ; the elytra have very little white pubescence and none in a fascia;

a little is visible on the posterior half of the elytra, which appears shining when viewed

from above.

There is a series of species very closely allied to this one, and which are extremely

difficult to determine. The present insect does not agree with what I regard as C. levi-

gatus, Spin., which is from South America, and also cannot, I now think, be identified

with the variable insect shown in our Plate under the name C. nitidus, and which

appears to differ also from a species found by Hoge.

47. Clerus inconstans. (Clerus nitidus, Tab. VIII. figg. 9, 10, 11.)

Niger, nitidus, subdepressus; prothorace parce leviter punctato; elytris fascia haud conspicua e pube brevis-

sima cinerea consistente, ad suturam versus basin recurvata ornatis. Long. 8 millim.

Hab. GUATEMALA, Duefias, Calderas (Champion).

Var. a. Pedibus rufis ; tarsis obscuris.

Hab. GuatnMaLa, Capetillo, Dueftias (Champion).

Var. 3. Prothorace lete rufo ; pedibus vel nigris vel rufis.

Hab. Guatema.a, Capetillo, Calderas (Champion); Costa Rica, Rio Sucio (Rogers).

Var. y. Elytris lividis, sutura nigra; prothorace vel nigro, vel rufo disco nigro; pedibus vel nigris vel rufis.

Hab. GuateMata, Capetillo, Duefias (Champion).

A most difficult species to deal with. Small black specimens come very near

C. nitidus; but, considering its rather larger size, and that C. nitedus does not vary in

the same way in its Mexican localities, I think it must be kept distinct. I have seen

no undoubted specimens of C. nitidus which exhibit a pale fascia of hairs running from

the centre of the margin backwards.

48. Clerus mollifasciatus.

Clerus mollifascia, Chevr. Rev. et Mag. Zool. 1874, p. 461.

Clerus levigatus, var. nebulosus, Spinola, Mon. i. p. 288, t. 21. f. 2.7

Hab. Mexico !, Jalapa (Hoge), San Andres, Orizaba, Tepansacualco, Tuxtla (Sallé) ;

GuaTEMALA, Capetillo, Cahabon (Champion); Panama, Volcan de Chiriqui (Champion) ;

Soutn AMERICA, Colombia.

Although I have received a note from M. Chevrolat upon this species, pointing out

the characters upon which he relies, I am still in doubt as to its distinctness from

C. nitidus, as well as to what C. nebulosus may be. _ Hoge’s specimens are of the same

size as C. nitidus, viz. 6-64 millim., and have the central band of white hairs composed

of two or three separate linear spots obliquely placed; the Guatemala specimens are

Y 2

164 . MALACODERMATA.

smaller (5 millim.), and with the band more diffused and distinct in the middle; both of

these forms have often a bluish tint. The Chiriqui examples hardly exceed 4 millim.,

the band exactly as in the Guatemala ones. That these are simply forms of one species,

I do not think any one who had seen a large series could doubt. It appears to be

a common species.

I do not at present adopt Spinola’s name, because it is quite uncertain whether his

two insects are varieties of one species or whether they are either of them identical with

any of the varieties alluded to above.

49. Clerus pilatei.

Clerus pilatei, Chevr. Rev. et Mag. Zool. 1874, p. 44°.

Hab. Mexico, Yucatan !, Teapa (Palate).

Unknown to me.

50. Clerus meridanus.

Clerus meridanus, Chevr. loc. cit. p. 42.

Hab. Mexico, Merida in Yucatan (Pilate, coll. Chevrolat et Gorham).

51. Clerus nigripes.

Clerus nigripes, Say, Journ. Ac. Phil. iii. p.191; Klug, Mon. p. 298; Spin. Mon. i. p. 263, t. 25. f. 3.

Hab. Nortn America, United States—Mexico (coll. Gorham).

Var. Clerus rufiventris, Spin. Mon. 1. p. 268, t. 23. f. 8.

Hab. Norta America, United States; Muxtico (coll. Gorham).

SALLAKA.

Sallea, Chevrolat, Rev. et Mag. Zool. 1874, p. 85.

Only one of the three species described by M. Chevrolat can be retained in this

genus. ‘The other two differ wholly in structure—S. rubripennis forming a new genus,

which for convenience I place at present following this, and S. bicolor being referred to

Colyphus.

1. Salleea necrobioides. (Tab. VIII. fig. 15.)

Sallea necrobioides, Chevr. Rev. et Mag. Zool. 1874, p. 36.

Hab. Guatemala (Salié).

One cf the most remarkable of M. Sallé’s discoveries, being very unlike any other

Clerid known, and of doubtful location. It certainly, however, cannot come near

Chariessa (as Chevrolat suggests), belonging as it does to the Clerides. The abdomen

BLAXIMA.-—EPICLINES. 165

(at least in the male) has a small sixth segment, which the author seems to have

overlooked.

The species seems to -be very rare, no more than two or three specimens having been

met with at present.

BLAXIMA.

Caput sat magnum, oculis subtiliter reticulatis ; antenne clava brevi, articulis connatis, ultimo leviter falci-

formi; palpi labiales articulo ultimo securiformi, transverso, maxillares eodem subulato? Prothorax

oblongus, antice leviter constrictus, basi marginatus. Elytra oblonga, subparallela, equaliter rugose

punctata, sat convexa. Pedes haud longi, femoribus posticis quam corpus multo brevioribus; tarsi

quinque articulati, articulo primo brevi occulto, tribus sequentibus bilobis, lamellatis; ungues basi valde

@xcisl.

The insect for which I propose this genus has several characters in common with

Sallea; but its general form is very different, rather resembling a T'richodes. 'Two of

the specimens examined are males, the exserted genitalia being in evidence; but these

do not exhibit any other external difference that I can discover.

1. Blaxima rubripennis. (Clerus rubripennis, Tab. VIII. fig. 14.)

Sallea rubripennis, Chevr. Rev. et Mag. Zool. 1874, p. 367.

Hab. Muxtco', Tepanistlahuca (Sallé); Guaremana, Capetillo (Champion); Cosra

Rica (fogers).

Of this rare insect but one specimen has (so far as I am aware) occurred in each of

the localities given above. It is, I believe, more nearly allied to Clerws than to any

other genus; but its uniformly coloured elytra and blue body are unlike any thing in

that genus, and its prothorax is not rounded at the sides and behind as so generally is

the case.

EPICLINES.

Epiclines, Chevrolat, in Guér.-Mén. Ic. Reg. An., Ins. texte, p. 49 (1838).

Eurycranus et Eurymetopum, Blanchard, d’Orb. Voy., Ins. p. 72.

Dereutes, Chevr. Mém. Fam. Clér. 1876, p. 29.

Trichodes, Philippi, Stettin. ent. Zeit. 1864, p. 266.

Much confusion exists about this genus. Briefly, they are small insects very much

resembling the genus T’hanasimus in form, of which the majority have prominent eyes

very slightly cut out, and belonging to the subfamily in which we place them. All the

species hitherto described (and they are now over forty in number) are peculiar to Chili.

The one now recorded belongs to the Dereutes section, which have prominent eyes, and

is evidently nearly allied to such species as 7. viridis, Phil.

1. Epiclines viridizneus.

Viridi-eeneus, nitidus; antennis, palpis et pedibus rufis, antennarum clava tarsisque obscuris. Long. 41-5

millim.

Hab. Guatema.a, San Joaquin (Champion).

166 MALACODERMATA.

Brassy green, shining. Mouth, antenne, and palpi red; the club of the antenne a

little pitchy, their length scarcely that of the head and thorax ; the latter longer than

wide, with a few erect hairs and scattered obsolete punctures, the anterior and basal

constricted lines faintly impressed. Elytra wider than the eyes, of nearly even width,

sparsely pubescent, and with obsolete punctures, scarcely ever digested into rows ;

sutural impressed line distinct at the apex, vanishing near the base. Legs red, tarsi

rather pitchy.

Remarkable as being the first instance I have met with of this genus extending beyond

Chili. Only three examples have yet been found.

Subfam. PHYLLOBALNIDES.

EPIPHL@US.

Epiphleus, Spinola, Rev. et Mag. Zool. 1841, p. 75 ; Mon. i. p. 5.

The species are all New-World. All the members of the subfamily have the eyes

largely and angularly excavated on the inner side. They are commonest in equatorial

South America, but are also well represented in Central America, as Mr. Champion’s

collections show.

1. Epiphleus setulosus. (Tab. VIII. fig. 24.)

Epiphleus setulosus, Thoms. Mus. Scient. ii. p. 60°.

Hab. Mexico }, Cordova (Sallé) ; GuatemaLa, San Geronimo, Las Mercedes, Torola,

Chacoj (Champion); Nicaragua, Chontales (belt); Panama, Volcan de Chiriqui

(Champion).

A common species, and met with in some numbers by Mr. Champion at Las

Mercedes.

2. Epiphleus marginipes.

Epiphleus marginipes, Chevr. Rev. et Mag. Zool. 1874, p. 69°.

Epiphleus terzonatus, var. B, Gorh. Trans. Ent. Soc. 1877, p. 247° .

Hab. Mexico!?, Cordova (Sallé), Mirandilla (Chanypion); Nicaragua, Chontales

(Belt, Janson); Panama, Volcan de Chiriqui, Bugaba (Champion).—SoutnH AMERICA,

Amazons, Ega? (Bates, coll. Gorham).

On comparing the specimens in Sallé’s collection, and which served as types for

M. Chevrolat, there is no doubt they are identical with the species described by

myself; but there is a discrepancy in his description, it being the first joint of the

club of the antenne, 7. ¢. the ninth joint, which is pale, as I have correctly described it.

The South-American specimens have this joint usually fuscous, as the two terminal

EPIPHL@US.—PLOCAMOCERA. 167

ones are, and with the thorax and head pale pitchy red, the disk of the former alone

being infuscate; but I still think they only represent one widely spread species.

The Chontales specimens agree with the Amazonian ones, except that they are more

rufous and rather more deeply striate-punctate.

The Panama examples have the ninth joint fuscous, with one or two exceptions; and

I am inclined to think the pale joint may indicate the female sex.

3. Epiphleus punctatus.

Nigro-fuscus, parum nitidus, dense fortiter punctatus; elytris punctato-striatis, humeris striga minuta

interdum obsoleta, fasciisque duabus, anteriore interrupta, posteriore valde undulata albido-flavis, macu-

laque parva subapicali concolori. Long. 4-5 millim.

Hab. GuatemMaLa, Quiche Mountains (Champion).

At once distinguished from any species of the genus at present known to me by the

deep, coarse and thick punctuation of the elytra. The extreme front margin of the

prothorax is often red. ‘The first pale fascia on the elytra generally consists of only a

hook-shaped lunule, often divided into two spots; the second fascia is irregularly W-

shaped, and the suture between the two is often pale, so as to leave a dark lateral spot

between them. The body underneath is dark; the knees are pitchy red. About

a dozen examples have occurred.

4. Epiphleus erythrocephalus. (Tab. VIII. fig. 25.)

Nigro-fuscus, vix nitidus ; capite prothoraceque antice rubidis ; elytris dense fortiter punctato-striatis, pallidis,

basi apiceque et macula laterali nigris ; pedibus pallidis ; antennis fuscis, articulis duobus basalibus rutfis.

Long. 33-5 millim.

Hab. Mexico, Cordova (Sallé) ; Guatnmata, Calderas, Capetillo, San Gerénimo, Cerro

Zunil (Champion); Nicaragua, Chontales (Bel¢); Panama, Volcan de Chiriqui (Cham-

pion).

Head usually rich red, thickly punctured, and having a granular look; sometimes

obscurely black; antennee fuscous, except their basal and second joints; thorax sub-

quadrate, angled at the sides, where its disk is very thickly punctured; the front

margin of the colour of the thorax less densely punctate. Hlytra with rows of large

punctures, evenly impressed from the base to the apex. Legs pale; tibie and tarsi

very slightly infuscate.

The specimen figured is from the Volcan de Chiriqui.

PLOCAMOCERA.

Plocamocera, Spinola, Mon. ii. p. 17; Lac. Gen. Col. iv. p. 468.

The only species of Plocamocera is widely distributed in tropical South America, and

varies in size. It resembles Epiphiwus, but has hairy antenne.

168 MALACODERMATA.

1. Plocamocera sericella.

Plocamocera sericella, Spin. Mon. ii. p. 19°, t. 38. f. 4.

Hab. Guatemaua, Pantaleon (Champion) —SovuTu AMERICA, Colombia }, Para, Ama-

zons (Bates, coll. Gorham).

On the single specimen collected by Mr. Champion it would be undesirable to found

a new species, especially as I have seen South-American specimens which were insepa-

rable from Colombian ones except by their much larger size. It is an obscure insect,

with patches and fascize of grey hairs.

Subfam. HY DNOCERIDES.

HYDNOCERA.

Hydnocera, Newman, Ent. Mag. v. p. 879 (1888).

Hydnocera is the representative in the New World of a group of feebly formed but

numerous species, of which Lemidia is the Australian type, those species referred to

“¢ Hydnocerus”’ by Westwood and others from other parts of the world not having

any close connexion with the genus. Making allowance for these, which must be

eliminated, about thirty species have been described, extending in their range from

the United States to Brazil.

Section A. Elytra abbreviated and attenuated towards their tips.

1. Hydnocera marginata.

Hydnocera marginata, Gorh. Trans. Ent. Soc. Lond. 1877, p. 260°.

Hab. GuateMaua, Aceituno | (Salvin).

Var. capite prothoraceque plus minusve nigricante.

Hab. GuatemMata, San Gerdénimo, Quiche Mountains (Champion); Panama, Boquete

(Champion).

‘The specimens taken by Champion, only one from each of the above localities, all

vary; that from San Gerdénimo has the head and thorax entirely black, the suture

broadly black in the middle, but the sides of the elytra quite pale.

This may be the Hydnocera suturalis of Spinola (Atlas, t. 39. £6; Lf limbata, Spin.

Mon. ii. p. 49).

2. Hydnocera guatemala. (Tab. IX. fig. 3.)

Hydnocera guatemale, Gorh. Trans. Ent. Soc. Lond. 1877, p. 261°.

Hab. Guatemaua, near the city! (Salvin), Duefias (Champion).

The four sepcimens from Duefias do not show any important variation from the type.

One of them is figured in the Plate.

HYDNOCERA. 169

3. Hydnocera subulata. (Tab. IX. fig. 4.)

Elongata, nigra, nitida, postice attenuata; dense fortius punctata; ore, antennis pedibusque flavis, illis clava

fusca. Long. 54-7 millim. -

Mas. Oculis magis distantibus.

Femina. Oculis antice approximatis.

Hab. Guatemata, Sabo, Senahu, Sinanja valley; Panama, Volcan de Chiriqui,

Bugaba (Champion).

Head wide; eyes large, especially in the female, nearly smooth; antenne yellow,

excepting their terminal joint. Thorax with scattered deep punctures and an impressed

central line; the sides swollen below the anterior constriction. Elytra deeply and

rather closely punctate; their apex truncate, sutural angle mucronate, entirely black.

Legs quite yellow.

4. Hydnocera testacea.

Elongata, testacea, nitida; elytris sparsim haud profunde punctulatis; capite linea occipitali, prothorace

lateribus lineaque discoidali, elytrisque puncto apicali fuscis. Long. 43-6 millim. ¢ 9.

Mas. Oculis distantibus.

Femina, Capite angustiore, oculis haud prominentibus. .

Hab. Mexico, Playa Vicente (Hége); Guarmmata, Cerro Zunil, Quiche Mountains

(Champion); Panama, Volcan de Chiriqui, alt. 8000 ped., Bugaba (Champion).

Head smooth, with a fuscous vitta or only two or three dots in the middle ; antenne

with their last joint touched with a darker cloud. Thorax with a dark line on each

side, and one or more upon the disk, sometimes obsolete, occasionally black, with the

front and hind margins pale. The pleure and (in the Bugaba specimen) sometimes

the breast dark pitchy black. Apex of the elytra rounded, with a dark spot. In the

Chiriqui examples the suture is often black. The Mexican specimen has none of the

dark markings, and, I think, may pertain to a different species.

5. Hydnocera lateralis.

Nigra, nitida; ore, antennis (apice excepto), palpis, elytrorum margine laterali pedibusque testaceis; capite

subtilissime coriaceo ; prothorace oblongo parce punctulato ; elytris crebre fortiter punctatis. Long. 5-54

millim.

Hab. Panama, Volcan de Chiriqui (Champion).

The head in this species is wide, and the eyes prominent. The thorax is longer than

wide at any part; it is swollen at the sides below the anterior constriction, but not

strongly, and is, with the head and body, usually entirely black, but in some specimens

is yellow in front and on the disk. The elytra are scarcely as wide as the head at their

base; the marginal pale vitta commences from the humeral callus, which it covers, and

is continued of nearly the same width to near the apex, where it ceases; the apex itself

has a few projecting points. The elytra are attenuated and gaping at the apex; their

sides are not very much narrowed. Eleven specimens.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, January 1883. Z

170 MALACODERMATA.

6. Hydnocera scapularis.

Nigra, nitida; antennis basi, ore, palpis (apice fusco), prothorace, pectore, humeris pedibusque flavis, femoribus

apice, tibiis intermediis et posticis basi apiceque infuscatis; prothorace inaequali, disco fere levi. Long. 5

millim. ¢ @.

Mas. Oculis distantibus.

Femina. Oculis antice approximatis.

Hab. Panama, Volcan de Chiriqui (Champion).

Very nearly allied to H. lateralis, but differing so remarkably in colour that I think

it must be a distinct species. Structurally the eyes are more globular, the thorax

rather shorter and less punctulate, and the hind femora more clavate. The elytra are

nearly as long as the body, and are coarsely punctured, especially towards the apex.

As two specimens only have been captured, it is hardly possible to pronounce positively

on any of these characters being of specific value.

7. Hydnocera subvittata.

Nigro-fusca, nitidula; ore, antennarum basi, pedibus elytrorumque vitta subsuturali sordide testaceis ; elytris

(femine ?) abbreviatis. Long. 5 millim. ¢ 2?

Var. capite prothoracisque lateribus testaceis.

Hab. Guatemata,. Chiacam, San Juan, Tamahu (Champion); Panama, Volcan de

Chiriqui, Bugaba (Champion).

A very indefinite species, varying a good deal in size and colour, and (if I am right in

uniting them as one) in the length of the elytra. The specimens with very much

shortened elytra are from Bugaba, and have an obscure vitta. Specimens occur both

from this and all the other localities with longer elytra, yet still attenuated and

dehiscent at the apex. Those from San Juan have the vitta confined to a basal streak

on each side of the scutellum. The hind legs have sometimes a cloud at the knees and

a dark spot on the middle of the tibie; the tips of the hind tibie and their tarsi are

also sometimes black. |

This species is most nearly allied to H. longicollis, Zieg., of the other species known

tome. ‘The thorax is more widened on the sides, and it is larger.

8. Hydnocera chalybeata. _

Subcerulea, nitida; ore, antennis, palpis, femoribus basi, geniculis, tibiis anticis totis, intermediis apice,

maculaque juxta scutellum flavis. Capite crebre, prothorace parce fortiter punctatis ; elytris basi leviter

tumidis, omnium parce profunde punctatis, apice nitido subelevato. Long. 4—7 millim.

Hab. Mexico (coll. Sallé), Playa Vicente (Hoge); Guatemaa, Calderas, San Gerd-

nimo, Capetillo (Champion).

Head wide, eyes hairy, apex of the labium and some of the joints of the antenne

faintly infuscate above, even between the eyes, the width between which is equal to

the length of the head in all of the seven specimens now before me. Thorax as wide at

the tubercular processes on the sides as the length ; on the tubercles above is a double

HYDNOCERA. 171

punctiform impression ; centre of the disk almost smooth; sometimes the head and

thorax have a faint brassy tinge. Elytra steel-blue, shining; very distinctly, rather

sparingly punctured, more finely and more closely so before the apex, in which part

some shining grey hairs are clearly visible; they cover three quarters of the body’s

length. The legs vary somewhat in colour, the Mexican examples having the femora

almost wholly yellow. In two specimens from Calderas the elytra want the yellow

basal spot. This species is rather nearly allied to H. flavifemorata, Gorh. (Trans. Ent.

Soc. 1877, p. 261), but will be distinguished by the absence of the pale fascia, as well

as by the shorter elytra with smooth elevated apices.

9. Hydnocera pulchella.

Nigro-subceerulescens, femoribus basi flavis; elytris macula subhumerali fasciaque pone medium, interrupta

cinereo-pubescente, testaceis. Long. 6 millim. ¢.

Hab, Panama, Volcan de Chiriqui (Champion).

Var.? Ore, antennis, pedibus, elytrorum humeris maculaque postica parva testaceis.

Hab. GuateMaua, San Gerénimo ; Panama, Volcan de Chiriqui (Champion).

Resembles the preceding species a little; but the elytra are not shortened nor tumid

at the apex, but almost cover the abdomen, and are punctured at the apex. The head

and thorax are both very thickly punctured ; and hence the latter appears more opaque.

_ The antenne and legs are darker in the typical specimens; and the pale basal spot is

not on the base, but below the shoulder, between it and the suture. The elytra are of

a fine dark steel-blue, less narrowed behind than in H. chalybeata, and reach nearly as

far back as the hind femora do, whereas in such species as have shortened elytra they

scarcely reach beyond one third of the femora.

10. Hydnocera nitidicollis. (Tab. IX. fig. 9.)

Hydnocera nitidicollis, Chevr. Rev. et Mag. Zool. 1874, p. 71°.

Hab. Mexico (coll. Gorham), Puebla! (coll. Sallé).

The elytra are greenish, with an anterior fasciate patch formed of white hairs, and

another fascia behind the middle white, clothed also with white pubescence. ‘The

head and thorax coppery.

Apparently rare ; there are only two specimens in Sallé’s and one in my own collection.

11. Hydnocera trichroa, (Tab. IX. fig. 5.)

Brevis, oblonga, nigro-subsnescens, omnino crebre subtilissime punctata; ore, antennis, pedibus basi, tarsis

anticis humerisque late rufis; elytris medio albo-fasciatis. Long. 4-53 millim.

Hab. Guatemana, Duefias, San Gerénimo (Champion).

Head and thorax obscurely greenish black, very closely punctured, opaque ; anterior

constriction of the latter but faintly impressed. LElytra rather parallel, covering the

172 MALACODERMATA.

wings, but broad and short; the shoulders and base rusty red; about the middle a

white fascia, separated by the blackish ground-colour (which also invests the suture at

the base and scutellum) from the red, apical half blackish. Legs black, extreme base

and four anterior tarsi red, tips of the middle pair dark.

Three specimens have been sent.

12. Hydnocera hematica.

Nigra, nitida; thorace (maris?) parce punctato; antennarum basi, palpis elytrisque basi rufis. Long. 53

millim, ¢?

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

Nigra, subopaca; thorace elytrisque crebre, subrugose punctatis; elytris basi rufis. 9?

Hab. Mexico, Cuernavaca (Sallé).

I have scarcely a doubt that these two forms belong to one species, though I am not

certain to which sex to refer them. It is a species very much like H. humeralis, Say,

which occurs in Texas and probably in Mexico, from which it differs in not being of a

blue-black colour, in having the red portion at the base extending to the margin and

further down the elytra, only leaving the suture and scutellum black (in one female the

red extends completely across the base), in not having the antenne entirely red, in

having the elytra slightly narrowed to the apex, and (as I think) in having longer femora,

of which the hind pair reach behind the apex of the elytra.

13. Hydnocera clavata.

Nigra, nitida; capite prothoraceque vix punctatis parcius pilosis, oculis antice approximatis; antennarum

articulo basali et duobus penultimis pallidis ; elytris quam corpus brevioribus, plaga magna humerali pedi-

busque testaceis; femoribus posticis incrassatis, tibiis posticis apice nigris. Long. 7 millim. ¢.

Hab, Mexico, Juquila (Sal/é).

This species, with the exception of the legs, is coloured like H. hematica. The eyes

nearly contiguous in front and the swollen posterior femora are unusual characters; I

have not observed the latter in any other species: while I think both of the two speci-

mens in Sallé’s collection are males, I think at the same time that this latter may not

prove to be a sexual character. The legs, including the coxe, are entirely pale, with

the exception of a small black piece at the apex of the hind tibie, and that the claws

are brownish. ‘The elytra are evenly, not coarsely, punctured. The apical joint of the

antenne is black, but the two preceding ones are whitish; one or two at the base are

also pale.

14. Hydnocera obscura.

Sordide fusca; antennis basi, palpis, pedibus, elytris macula subhumerali et ad apicem indeterminate testaceis ;

prothoracis margine antico et postico rufo. Long. 33-5 millim.

HYDNOCERA. . 173

Hab. Guatamaua, San Gerdnimo, Paso Antonio, Rio Maria Linda (Champion) ;

Panama, David, Chiriqui (Champion).

This little species is obscurely coloured and varied with pale and pitchy fuscous

markings ; but of these the paler margins of the thorax and the spot at the base of the

elytra (which at times leaves only the humeral point and the scutellum with an obscure

cloud around it fuscous) are tolerably constant. The elytra cover the body, are a little

narrowed behind, and have the apex scarcely, if at all, serrate. Their puncturing is

close and intricate. The femora and tibie of the four hinder legs are widely clouded,

with the knees and base paler in darker specimens; and in these the antenne have the

apical joint fuscous; in other specimens both the antenne and legs are entirely

testaceous. This insect has very much the facies of a small species of the eastern

genus Stigmatium.

There are ten specimens, of which seven are from San Gerdnimo, which I refer to

this species.

15. Hydnocera sordida.

Sordide picea, obscura; antennis, palpis, pedibus anticis partim, elytrisque macula subhumerali flavis. Long.

_ 4-53 millim.

Var. Elytris vitta submarginali cum macula basali conjuncta flava.

Hab. Mexico, Guanajuato (Dugeés, coll. Sallé).

A species in many respects rather nearly allied to the preceding one. It differs in

the head being more contracted behind, which gives the eyes a more prominent look.

The thorax is wholly pitchy and, with the head, is very closely and subrugosely

punctured. The elytra do not narrow behind so decidedly as in H. odscura; the legs

are darker, the front and middle femora are obscurely red, with a dark cloud on their

upper margins; the hind pair are usually wholly dark, or with the extreme base or the

trochanter alone yellow. The elytra have a basal spot, and usually some trace of a

vitta near the outer margin reddish yellow ; sometimes this vitta is prolonged to near

the apex, and unites with the basal spot. The tip of the humeral callus is usually

pitchy ; but in one specimen a rufous patch extends over the greater part of the base.

The seven specimens in Sallé’s collection are numbered 584 and 585; but I consider

them all referable to one species.

Section Bi. Elytra covering the abdomen ; shoulders not carinate.

16. Hydnocera corticina. (Tab. IX. fig. 6.)

Elongata, subparallela, fusco-brunnea, crebre fortiter punctata ; elytris basi apiceque equali latitudine, in medio

parum angustatis, fascia mediana ad suturam recurvata, indistincta, apiceque subalbidis ; pedibus variegatis,

pallidis, genibus latius fuscis. Long. 5-7 millim.

Hab. Mexico (Sallé); Guaremata, El Tumbador, Las Mercedes, Cerro Zunil

(Champion).

174 MALACODERMATA.

Head wider than the thorax across the tubercular swellings, with some shining hairs

in front, of a ferruginous colour, finely rugulose. Thorax darker than the head,

granulate punctate, rough, the sides suddenly swollen in front of the middle, the basal

and front margins and sometimes the whole thorax ferruginous. ‘The elytra are thickly

and coarsely punctured; at the extreme apex the punctures are obsolete, and the front

of the white portion there is clothed with silky white hairs; about the middle there is

a curved white fascia, turning towards the apex at the suture; there is also a badly

defined oblique line of white hairs from the humerus, meeting at the suture. The

elytra are usually brown at their base, but are darker between the fascia and the apex,

and are sometimes dark in the basal half, excepting at the margins. They have often

a bluish eneous tinge. Seven specimens were collected at Las Mercedes, only one or

two in each of the other localities. I cannot distinguish the sexes. ‘The specimen

figured is one from El Tumbador.

17. Hydnocera intricata.

Fusca, parum nitida; capite prothoraceque eneo-micantibus, hoc disco intricato ruguloso, antennis et palpis

fuscis, basi dilutioribus; elytris distincte parcius punctatis, basi apiceque conjunctim cum sutura late

pallidis, marginibus fuscis, medio albido-fasciato; pedibus basi pallidis, femoribus apice tibiisque

saturatius brunueis, vel piceis. Long. 6—7 millim.

Hab. GuatEMALA, Sinanja valley, Vera Paz (Champion).

Like H. corticina, but more parallel, the elytra not contracted at the middle of the

margin. The rugulose thorax, which, with the head, is brassy, seems to indicate a

distinct species.

18. Hydnocera nigro-znea.

Hydnocera cerulea (Dugés, coll. Sallé).

Nigro-cerulea, parum nitida, lata, parcius distincte punctata, nigro-pilosa, pube brevi cinerea depressa parce

vestita ; corpore infra cum pedibus nigris. Long. 53 millim.

Hab. Mexico, Guanajuato (Dugés, coll. Sallé), Puebla (Sallé).

Head and thorax black, very obscurely brassy, very finely and obsoletely punctured, the —

sculpture almost hidden by the numerous upright hairs and rough depressed pubescence.

Antenne and palpi dark brown. ‘Thorax as wide as long. FElytra very nearly covering

the body, wider than the head, very densely covered with small punctures; narrowed

a little to the apex, and with depressed ashy hairs and upright pile which is black ;

obscurely brassy black. This is a robust and moderately convex insect, differing from

the one which follows in many respects, notably in its much finer puncturing of the

elytra and broader form. ‘There is only one specimen in the Sallé collection (No. 579),

which is bluish black; others from the same locality, six in number, and one from

Puebla, agree in being brassy (Nos. 578, 580, 581, 582), and pertain, without doubt, to

one species. ‘The mouth and anterior tibie are obscurely red in some examples.

- HYDNOCERA.: * 175

19. Hydnocera cyanipennis.

Nigra, oblonga, parallela; supra eneo-micans, elytris cyaneis, crebre et fortiter rugose punctatis ; ore, palpis,

antennarum basi trochanteribusque flavis. Long. 5 millim.

Hab. Guatemata, Calderas, Capetillo, Quiche Mountains (Champion).

A very much narrower, more parallel and slightly built species than H. nigro-cnea.

The underside is shining black, the only yellow parts being the mouth (the labrum

excepted), palpi, antennz (excepting the upperside of the last joint and one or two

preceding it), and trochanters; sometimes, however, the anterior tibie are obscurely

pale. The disk of the thorax is finely and irregularly rugulose; the widest part is a

little in front of the middle; the upright pile and the pubescence is much less dense |

than in H. nigro-enea. . The elytra are greenish blue, with coarse, closely packed, and

occasionally confluent punctures, irregularly disposed but uniformly distributed. There

is a very indistinct commencement of a fascia of ashy hairs on the middle of the margin.

The elytra cover the abdomen completely, and are together rounded at their apices.

Nine specimens from Calderas, one from each of the other localities.

20. Hydnocera cincta. (Tab. IX. fig. 8.)

Hydnocera cincta, Spin. Mon. ii. p. 48, t. 39. fig. 5°. .

Hab. Muxico (Sallé); Guatnmata, Capetillo, Duefias, Zapote, Cerro Zunil, Las

Mercedes, Rio Maria Linda, Guatemala city; Panama, Boquete, Volcan de Chiriqui

(Champion).—Soutu America, Cayenne 1, Amazons (Bates, coll. Gorham).

The specimen figured is one from Cerro Zunil. Varies in the colour of the legs,

from nearly black with pale bases, to pale with only the knees, hind tibie, and tarsi

darker.

Although found in such widely separated localities, I have no doubt that my own

specimen from South America and the series collected by Champion belong to one

species; and I think there is hardly any doubt I have identified it correctly with

Spinola’s species.

Section B ii. Elytra covering the abdomen; shoulders carinate, lateral margin

sinuate posteriorly.

21. Hydnocera cryptocerina.

Nigra, obscure czrulescens, fortiter subrugose punctata; elytris medio albo-fasciatis, fascia ad suturam intérrupta,

ad marginem latiore; capite prothoraceque obsoletius punctatis; pedibus basi, genis et antennis (apice

excepto) testaceis, humeris etiam nonnunquam puncto pallido notatis. Long. 4—5 millim.

Hab. GUATEMALA, Chacoj, Teleman, El Reposo, El Tumbador (Champion).

In the section to which this species belongs the humeral callus is prolonged as a

curved carina towards the suture, and the margin is a little reflexed and beyond the

176 MALACODERMATA.

middle curves upwards. From Spinola’s description of H. bicarinata (a Brazilian

species) it is not clear whether that species has two carine, or one only and the

reflexed margin; but it is evidently a species of the same section as the present one.

H. cryptocerina bears some resemblance to H. cincta. The antenne are yellow with

the apical joint a little darker, the head is bluish with the mandibles and mouth a

little pitchy. The front can scarcely be seen to be punctured with a Coddington lens,

but is rough and clothed with a few ashy hairs; the thorax is about as long as wide at

the widest part, roughened behind, very indistinctly carinate. ‘The elytra are very

roughly punctured, not shining between the punctures as in H. cincta, but here and

there clothed with ashy hairs, which are most evident along the carina, on its inner

edge, and towards the apex of the elytra. There is usually a space on each side of the

fascia free from them, which hence appears black and throws up the fascia, reminding

one of Clerus contractus. It appears to me, indeed, that both of these species mimic

ants of the genus Cryptocerus, or vice versd, the white fascia of the beetles giving them

the requisite constricted look, and the white parts of the Cryptocerus withdrawing from

observation those parts which would, if seen, destroy the resemblance.

22, Hydnocera impressa. (Tab. IX. fig. 7.)

Nigro-cwrulea, nitida; elytris fortiter punctatis, obsolete carinatis, margine leviter sinuato, lineis duabus

obliquis, e pube cinerea formatis, ad scutellum conjunctis. Long. 4-5 millim,

Hab. Panama, Volcan de Chiriqui (Champion).

Var.? Pedibus basi et interne testaceis, elytris puncto cinereo pubescente tantum ornatis.

Hab. Mexico, Cordova (Salle).

Readily separated from H. bituberculata (which follows) by the elytra being evenly,

though sparingly, punctured throughout, and by their being more parallel. The

humeral carina is not very distinct. The line of shining ashy hairs is very oblique;

starting from near the scutellum, it reaches the margin behind the middle. The thorax

is narrower, less swollen at the sides in front. ‘The specimen from Mexico certainly

differs from the typical ones in several respects; but its punctuation and parallel form

are those of this species. Nine specimens were taken at Chiriqui, one of which is

figured.

23. Hydnocera bituberculata.

Hydnocera bituberculata, Chevy. Rev. et Mag. Zool. 1874, p. 71°.

Hab. Mexico, Cordova! (Sallé); Guatemaa, San Juan (Champion); Panama, Bugaba,

David, Volcan de Chiriqui (Champion); Nicaragua, Chontales (Janson).

The elytra in this insect are coarsely punctured at the base, but much more obsoletely

and sparingly so in the apical half, where also they are a little widened. ‘The thorax

HYDNOCERA.—ISOLEMIDIA. | 177

is more of a greenish blue than in the preceding. The carina is much more acutely

marked, and often continues to within one third of the apex. The shining pubescence

is almost confined toa spot; and the legs are more frequently pale. I was once inclined

to think the Panama and Nicaragua specimens were a different species, on account of

the carina being more produced; but I am now disposed to unite them as local forms

only.

24. Hydnocera quadrilineata,

Hydnocera quadrilineata, Chevr. Rev. et Mag. Zool. 1874, p. 71°.

Hab. GuateMata, Yucatan, Teapa ! (Pilate).

Unknown to me; apparently allied to H. marginata.

ISOLEMIDIA.

Isolemidia, Gorh. Trans. Ent. Soc. 1877, p. 257.

The species for which this genus was proposed resemble rather closely the Lemidie

of the Australian region, but are in reality more nearly allied to Hydnocera. From

Dereutes, Chevr., to which the insect now described is also apparently allied, the want

of any sinus to the eyes will serve to distinguish it ; they are, in fact, entire; the antenne

are eleven-jointed, with a small, rather connate, three-jointed club. The four species

originally included in the genus were all from the South-American continent, three

being from the Amazons, and one from Rio Janeiro, though not quite satisfactorily placed

there. And the present species may require a fresh genus for its reception when

comparison has been made with my typical species, which I am unable to make at the

present time.

1. Isolemidia subviridis,

Nigra, nitida; antennis, palpis, pedibus elytrisque olivaceo-viridibus, his basi, sutura apiceque indeter-

minate nigro-piceis, levibus ; oculis subglobosis, integris ; antennis brevibus, quam caput paullo longioribus.

Long. 6 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Head with the eyes wider than the thorax, the front between them as wide as the

front of the thorax, finely strigose near each eye and punctured in the middle. The

antenne have the joints succeeding the basal one not much longer than wide, the three

last transverse, forming a short oblong club. The thorax is constricted in front and

behind, the sides widened and rounded, much as in Hydnocera; the frontal part

transversely strigose, the disk smooth, with a few shallow impressions on the sides and

near the base. Elytra smooth, with very obsolete indications of strie; the shoulders

distinct, with a very small callus, which is brown ; the scutellar region is greenish ; in one

specimen the base is black, in the other it is olivaceous to beyond the middle, the

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, January 1883. 2A

178 MALACODERMATA.

greenish line being iridescent or a mere surface-tint; the extreme apex is brownish,

but before this tint it is black, as well as the suture in its whole length. ‘The legs are

dark externally, greenish internally.

Two specimens only of this have been sent, among Mr. Champion’s latest captures on

the Volcan de Chiriqui. |

Subfam. ENOPLIIDES.

| ICHNEA.

Ichnea, Cast. Silber. Rev. Ent. iv. p. 55. |

A genus remarkable for the closeness with which its species mimic small Lycide and

Lampyride. It is found all over the warmer parts of both the northern and southern

continents of America, being represented in the United States by one species, J. lati-

cornis, Say. The species are generally rare in collections, but probably only require

looking for carefully in their haunts, since a very considerable number of some were

found by Mr. Champion. About twenty-four species are now described, chiefly from

South America. A memoir on the genus will be found in the Trans. Ent. Soc. Lond.

1877, p. 409.

a. Antenne distinctly eleven-jointed.

1. Ichnea histrica. (Tab. X. fig. 1.)

Nigra, capite prothoraceque flavis, hoc antice angustato, lateribus sinuatis plagaque mediana nigris; elytris

postice paullo ampliatis, seriatim punctatis, plaga humerali ultra medium producta ferruginea, limbo

laterali tenuiter, sutura trienteque apicali oblique nigris. Long. 8-9 millim.

Hab. Panama, Bugaba (Champion),

Allied to I. lycoides, but with the thorax less suddenly bowed behind at the sides,

yet constricted in front, where it is narrower than at the base. The sides are impressed ;

and there is a small punctiform impression on the base in front of the scutellum. ‘The

elytra are evenly punctured in close-set rows; the yellow humeral streak is clothed with

a fine, silky, shining golden pubescence, which is also visible upon the yellow lines of

the thorax and on the head behind. ‘The yellow extends further along the margin

than near the suture; it is divided for a short distance by a black streak from the

apical portion; the suture is black throughout as far as the second series of punctures.

The front pair of legs are wholly black; the middle and hind pairs have the femora

yellow in the basal half.

This species is not unlike a small L. meaicana, from which its serial punctuation and

the central black vitta of the thorax distinguish it. It is also not very dissimilar from

I. funesta, Gorh., to which it is allied both in the form of the thorax and in the black

vitta. In that species the humerus is cnly adorned with a narrow and short yellow

striga, and the thoracic vitta is much more attenuated anteriorly. In colour this species

ICHNEA. 179

most resembles Calopteron obliquum, but has a strong general likeness to many species.

Only three specimens have yet occurred. :

2. Ichnea mexicana, (Tab. IX. figg. 186, 192, 21 var.)

Ichnea mexicana, Thoms. Mus. Scient. p. 651; Chev. Mémoire, 1876, p. 36 (9 )?.

Hab. Mexico 12, Cordova (Sallé), Juquila (Boucard, coll. Sallé); Guatemata, San

Geronimo, Capetillo (Champion); Nicaracva, Chontales (Belt). |

Var. Mexico, Cordova (Sallé); Guatema.a, Cerro Zunil ; Panama, Volcan de Chiriqui,

Bugaba (Champion).

M. Chevrolat evidently considers the wider individuals to be the males; on the

contrary, though the apical segments are not specially modified in either sex, I believe

the narrower and more parallel ones are the males. The club (‘la massue”) of the

antenne is not correctly described by him? as consisting of four joints. The third to

eighth joints are shortened and strongly transverse, and form an apparently single mass,

their hairiness making it difficult to count them separately. The three terminal joints

are large and compressed. It is evident that this adds to the illusive resemblance to

some species of Calopteron, such as C. ichnoides. ‘The variety has the elytra either

entirely yellow, or yellow more or less clouded at the apex.

Fig. 18 is of a specimen from San Gerénimo (male); fig. 19 is afemale from Cordova;

and fig. 21 is a male of the variety from Cerro Zunil.

3. Ichnea panamensis. (Tab. X. fig. 2.)

Nigra, superne ochracea; prothorace lineis duabus discoidalibus basi conjunctis, haud bene discretis, nigris ;

elytris apicem versus paullo ampliatis, punctato-striatis, seriebus punctorum pone medium confusis, ad

basin lineolis subsuturalibus et scutello nigrescentibus. Long. 8-10 millim.

Hab. Panama, Bugaba (Champion).

Head ochre-yellow; antenne, mandibles, and tips of the palpi black, an indistinct

line behind the eyes, and continuous with the thoracic line, blackish. Thorax very

slightly narrower in front than behind, more depressed than in Jf. meaicana, sides

sinuous, a conspicuous depression on each side behind the middle, and a smaller one

in front of the scutellum on the middle of the base: besides the two ill-defined lines

on the disk, there are two lines on the underside, on each side below the margin, with

a corresponding spot on the head. The elytra are of a rich ochraceous yellow, with

very frequently a short dark streak from the scutellum, diverging a little from the

suture; the series of punctures are often continued at the sides beyond the middle.

The legs are black, with the exception that the front pair and sometimes the middle

and hinder ones have their bases faintly yellow on the inner sides. ‘The specimens

which I accord to this species appear to be all females; but with them males have been

found which, from their quite dissimilar puncturing, as well as from other differences

in the mode of coloration, I have considered to be a remarkable variety of [. mexicana,

2A 2

180 | MALACODERMATA.

one of which is shown in the figure 21 of Tab. IX. J. mericana has always three

interstices slightly costate; the puncturing between these is very thick and nowhere in

rows, as it is over the whole elytra; the shoulders and the thorax in that species have

some close golden sericeous pubescence: in all these respects, as well as in the black

sides of the thorax, the variety alluded to agrees with C. mexicana, and not with the

species now described. The present species agrees more nearly with J. mitella, Gorh.,

a South-American insect, and belongs to the same section of the table in Trans. Ent.

Soc. 1877, p. 409.

4. Ichnea religiosa. (Tab. IX. fig. 20.)

Ichnea religiosa, Chev. Rev. et Mag. Zool. 1874, p. 72*.

Hab. Mexico, Oaxaca 1, Yolotepec (Sal/é) ; Guatemata, San Gerénimo (Champion).

The only apparent difference between this and males of /. mewicana is that the elytra

are entirely black; and I think it is only a variety of that species. I have not, however,

seen females, or at least not specimens with the elytra widened behind, of this form.

The figure is of a specimen from Yolotepec.

5. Ichnea disjuncta. (Tab. IX. figg. 23, var. 24.)

Ichnea disjuncta, Gorh. Trans. Ent. Soc. 1877, p. 411°.

Hab. Nicaracua, Chontales (Belt).—Sourn America, Amazons, Ega! (Bates, coll. Fry).

Figure 23 and the variety shown in fig. 24 are both Chontales specimens.

I. preusta, Klug, is given in the Munich Catalogue as a synonym of J. lycoides. I

have seen a totally different species so named, which is rather nearly allied to L. disjuncta,

and has the elytra similarly coloured; it is in my own collection from the Amazons,

but is quite distinct from the present species.

6. Ichnea enoplioides. (Tab. IX. fig. 22.)

Ichnea enoplioides, Spin. Mon. ii. p. 25+, t. 87. f. 1, 2.

Ichnea circumcincta, Chev. Rev. et Mag. Zool. 1874, p. 737.

Hab. Mexico, Cordova (Sallé), Juquila (Boucard, coll. Sallé); Guatemata, San

Geronimo, Senahu (Champion); Nicaragua, Chontales (Belt)—Sovrn America,

Colombia !, Cayenne 1, Amazons (coll. Gorh.).

From the number of MS. names quoted by Spinola, and others which I find attached

to unimportant variations of this insect, it is clearly a misunderstood species. Yet

Spinola’s figures seem recognizable enough; it is a widely spread species, extending,

perhaps, even to Brazil ; for I possess a specimen so labelled.

ICHNEA.—APOLOPHA. 181

b. Antenne apparently ten-jointed.

7. Ichnea aterrima.

Ichnea aterrima, Klug, Gemm. & Har. Cat. Col. p. 1751"; Sallé coll.

Enoplium aterrimum, Klug, Abhandl. Ak. Berl. p. 378°; Spin. Mon. il. p. 162.

Hab. Muxico1?, Guanajuato (Dugeés, coll. Sallé).

The species thus labelled in Sallé’s collection has very much the appearance of an

Epiclines such as E. basalis, but in the structure of the antenne shows a clear affinity to

Ichnea. The palpi are cylindric and truncate, as in that genus; but the prothorax

exhibits a marked distinction in having sharply defined lateral margins and certain

ill-defined longitudinal ridges and sulci. The elytra are opaque dull black, very finely

punctured, and coriaceous. ;

I think it will be eventually separated with the species which follows, which is closely

allied to it, to form a new genus.

8. Ichnea dugesi. _

Atra, opaca, subtilissime punctata, prothorace subquadrato, lateribus et infra saturate rufis; elytris modice

dilatatis, sutura paullulum elevata. Long. 7-8 millim.

Hab. Mexico, Guanajuato (Dugés, coll. Sailé).

Very closely allied to the preceding species, and hardly to be distinguished from it

except by the colour of the thorax. The head is rough and opaque, the antenne and

palpi black: of the antenne the intermediate joints (that is, the third to seventh) are

obconic, hairy on their inner edge, but quite distinct; the eighth and ninth expanded,

and nearly as long as the part of the antenne preceding them; the tenth elongate,

sinuate on its inner margin, nearly as long as the two before it. The thorax is as wide

as long, with the sides a little expanded, but without any trace of tubercle; each side

of the disk is impressed with a broad shallow depression ; the edge is sharply margined,

the margin extending round the base ; constricted lines are not present. The underside

is shining black. ‘There are five specimens in Sallé’s collection.

APOLOPHA.

Apolopha, Spinola, Mon. i. p. 881; Lac. Gen. des Col. iv. p. 482..

The association of the three species here given with Spinola’s genus is doubtful ; for

there is a discrepancy between his description of the number of joints in the antenne

and the number shown in the plate (t. 36. f. 1). Hight is the number he names, and

that is the number I count in my species ; but, owing to the intermediate joints being

hairy on the inner side and reduced in length, it is probable that the rudiments of one

or two more are present. There is an obvious affinity to Jchnea in the structure of

these organs.

182 - MALACODERMATA.

The type of the genus was a unique insect in Reiche’s collection from Colombia ;

and I am not aware that it has ever been rediscovered.

1. Apolopha trilineata.

Ichnea trilineata, Chev. Rev. et Mag. Zool. 1874, p. 733,

Hab. Mexico, Cordova ! (Sallé). :

The eyes are more prominent than in Jchnea, the centre of the thorax with a black

vitta; the head, sides, and underside of the thorax are yellow; the elytra greyish black,

opaque, with close rows of punctures in striae, the punctures closely packed, large, and

irregular in form and size, and with the strie becoming confused before the apex.

There were three specimens in Sallé’s collection.

2. Apolopha chiriquiana. —

Griseo-nigra, capite, prothorace infra et lateribus, sutura tenuiter, pedibusque partim pallide flavis; elytris

distincte striato-punctatis; antennarum articulis tribus ultimis quam reliqui triplo fere longioribus.

Long. 5-54 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

About equal in size to the smallest specimen of A. trilineata; but none of the six

specimens which have reached us attain the size of the two larger specimens of that

species. It is also to be distinguished by its pale suture, which does not quite reach

the base or the apex, and by the more regular series of squarish punctures; these series

are about ten in number on each elytron. The thorax has a rather large round

impression on each side of the disk. The head is black behind each eye. The antenne

are blackish, the basal joint curved, the second bead-shaped ; the third, fourth, and fifth

form together an obconic mass, and are not easy to see separate. I sometimes think

I can see a sixth, before the three large terminal joints; if so, it is shorter and

narrower than the preceding one, and closely connected with the first of the club. The

front legs are black or fuscous, with pale knees; the four hinder ones are pale, with

the femora darkened externally and near the apices, and tibie dark, excepting at the

knee.

Six specimens have been found, two of which were from Bugaba.

3. Apolopha linearis.

Parallela, grisea, punctata, capite prothoraceque ferrugineis, hoc medio nigro vittato, tibiarum basi femoribus-

que pallidis; antennis quam caput thoraxque fere duplo longioribus. Long. 5 millim.

Hab. Panama, Bugaba (Champion).

In this species the eyes are not so prominent, nor is the head so constricted behind, as

in A. chiriquiana; it is a more linear insect, the head being scarcely wider than the

thorax. ‘lhe head has the same black portion behind the eyes, but is more fully received

into the thorax. The latter is not so much clothed with silky hairs; and hence the

APOLOPHA.—PLATYNOPTERA.—PYTICERA, 183

punctuation is much more distinct upon its disk; also on each side there is only a very

faint impression, the sides are slightly sinuate, the front angles acute, the posterior

rounded off. ‘The elytra are unicolorous. The antenne are proportionally longer.

Two specimens are all I have found among the numerous Cleride collected by

Champion at Bugaba.

PLATYNOPTERA.,

Platynoptera, Chevrolat, in Silb. Rev. Ent. ii. no. 18 (1884).

Of this remarkable genus eight species have been described, all from Tropical

America. ‘They present the best-known and perhaps the most perfect instance of

mimicry between themselves and the Lycide.

1. Platynoptera duponti.

Platynoptera duponti, Spin. Mon. ii. p. 64°, t. 41. f. 4.

Hab. Mexico}.

I have never seen this insect. From the plate in Spinola’s Atlas, it would seem

not to be unlike the Pyticera of the same name, but to have the full complement of

eleven joints to the antenne, and to have the apical joint more excavated.

2. Platynoptera mexicana. (Tab. IX. fig. 11.)

Platynoptera mexicana, Thoms. Mus. Scient. 1860, p. 65°.

Hab. Mexico1, Paso del Macho (2098); Mirador (Sallé) ; Guatemaa, Cubulco, Vera

Paz (Champion).

The species of Platynoptera would all seem to be rare, but are perhaps only so in

collections, owing to the protection their resemblance to some common species of Lycus

would give them; for it is quite sufficient to deceive even a good naturalist. The

resemblance is more general than specific. The present species varies in the amount

of blue at the base of the elytra, some examples having scarcely any trace of the dark

basal patch, in which case they imitate the variety of Calopteron bifasciatum (cf. Tab. I.

fig. 12). Hége met with a number of specimens at Paso del Macho.

PYTICERA.

Pyticera, Spinola, Mon. ii. p. 69; Gorh. Trans. Ent. Soc. 1877, p. 416.

Platynoptera (pars), Lac. Gen. Col. iv. p. 478.

The name Pyticera was applied by M. Dupont to the type of the genus Ichnea, viz.

I. lycoides. It is not, therefore, strictly appropriate here. There is again, also, as is

the case in Apolopha, a discrepancy between the number of joints assigned to the

antenne in the printed description, viz. nine, and the number shown in the figure of

the same species, where it is ten. ‘The fact appears to me to be that the figure is

correct. In addition to Spinola’s species, I have described two species found by

184 MALACODERMATA. |

Mr. Bates on the Amazons, The first of the two species now recorded is one of

Mr. Champion’s most interesting discoveries in this family.

1. Pyticera championi. (Tab. IX. fig. 10.) |

Flavo-testacea, subnitida, subtiliter pubescens; capite, antennis, tibiis, tarsis elytrisque postice nigro-fumosis,

abdomine piceo, Long. 9-10 millim.

Hab. Guatemata, San Gerdénuimo (Champion).

The intermediate joints of the antenne are together about equal in length to the

basal joint; the first of the three terminal ones equals all preceding it; and the two

following are successively longer, so that the whole antenna is more than half the body’s

length. The palpi are all hatchet-shaped at the tips; but the terminal joints are not

widely triangular, but only a little expanded. They are yellow, excepting the apical

joints. The mandibles are acutely toothed, pitchy, the head being a little flavous about

their bases. The thorax is almost smooth, but not very shining; the sides are nearly

straight, fringed with soft yellow hairs. The elytra are yellow at their base, this colour

extending down the margins and suture, while the black of the apical half extends

indefinitely up their centre. They are closely and obsoletely punctured ; their lateral

margins rather expanded. The metasternum and abdomen are pitchy and shining,

paler at their margins.

Five specimens are all Mr. Champion has sent of this novelty.

2. Pyticera militaris.

Pelonium militare, Chevr. Rev. et Mag. Zool. 1874, p. 73°.

Enoplium humerale, Horn, Trans. Amer. Ent. Soc. 1867, p. 185°.

Hab. Unrrep States, New Mexico ?.—Mexico, Jolos! (Saldé).

The very short funiculus, apparently ten-jointed antenne, and absence of lateral

tubercles to the thorax, bring this better into the present genus than into Pelonium.

It is not an Enoplium, for four joints of the tarsi are easily seen from above; and I

think it better not to adopt Dr. Horn’s name, because there is already a Pelonium

humerale, Spin. The first two joints of the club of the antenne have their inner sides

produced into long rami, the branch being equal in length to the rest of the joint. It

thus and in some other respects approaches P. pilosum, Forst.; but the shortened

intermediate antennal joints render it even more difficult to retain it than that species

in Pelonium. The type specimen in Sallé’s collection, which has now passed into the

possession of Messrs. Godman and Salvin, is the only one we have seen.

ORTHOPLEURA.

Orthopleura, Spinola, Mon. ii. p. 80; Lac. Gen. Col. iv. p. 482.

The antenne are eleven-jointed, the intermediate joints shortened and hairy on their

inner side; the body is cylindric, and the thorax is also cylindric but with margined

ORTHOPLEURA. 185

sides. This genus, therefore, is allied to Ichnea on one side, and to Pyticera and

Platynoptera on the other. The tarsi are short, four-jointed, and the basal joint is

not entirely hidden; the remark, therefore, in Lacordaire that it has the structure of

the tarsi of Hnoplium is based on an error. The type of Orthopleura is O. damicornis :

with this Spinola has associated the European O. sanguinicollis; an examination of

its antennz, no less than of other parts, has satisfied me that it cannot properly be

retained there. I therefore regard the genus as exclusively American. M. Chevrolat

has described a species from Brazil; I have not seen it. The genus is only known to

me from the northern continent.

1. Orthopleura damicornis.

Tillus damicornis, Fab. Ent. Syst. Supp. p. 117'; Syst. El. i. p. 282.

Orthopleura damicornis, Spin. Mon. ii. p. 80’, t. 42. f. 4.

Orthopleura bimaculata, Melsh. Proc. Ac. Phil. ii. p. 307 °.

Orthopleura punctatissima, Chevy. An. Soc. Ent. Fr. 1848, p. 34.

Enoplium thoracicum, Say, Journ. Ac. Phil. iii. p. 188°; Am. Ent. iii. t. 41.

Pelonium pennsylvanicum, Chevr. Rev. et Mag. Zool. 1874, p. 74°.

Hab. Norta America !?, Pennsylvania 345 6—Muxtco (coll. Gorh.).

2. Orthopleura suturalis.

Orthopleura suturalis, Chevr. Rev. et Mag. Zool. 1874, p. 77’.

Hab. Mexico},

I have the type of this fine species before me ; it is twelve millimetres in length, and

is more shining, being less pubescent, than any of the other species. It is pitchy black

above, rufous beneath, and with the legs, the base of the antenne, the suture broadly,

and a narrow arcuate fascia behind the middle pitchy red. The antenne are less hairy

than in other species; but the elongate third joint and the short tarsi are characteristic

of the genus. ‘The type is the only specimen I have seen.

3. Orthopleura binotata.

Densius pubescens, nigra, capite prothoraceque rufis, hoc lateribus maculisque duabus basalibus, illo palpis,

mandibulis et antennis nigris. Long. 34-9 millim.

Hab. Mexico, Juquila (Boucard, coll. Sallé); GuatzMaua, Pantaleon, Zapote

(Champion).

Head rufous in the middle above and beneath, black at the sides. Thorax with

shining yellow pubescence, conspicuous in three lines, one on each side and one in the

middle; punctuation hardly visible, very fine and hidden by the pubescence. Elytra

much less shining than in 0. damicornis: in the example from Juquila there is a very

faint trace of the transverse fascia; but they are dull black, without any fascia in the

other examples. |

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, January 1883. 2B

186 MALACODERMATA.

The one from Pantaleon is so very small that it seems difficult to connect it with

the same species. I do not think; this insect is the same as the species from Cuba

which Chevrolat regards as the 0. bimaculata of Melsheimer. It is, at any rate,

distinct from O. damicornis, and is very much more pubescent.

4. Orthopleura purpurea. (Tab. IX. fig. 17.)

Rubra, pube micante vestita ; antennis, palpis, thoracis lateribus, pedibus et abdomine nigris. Long. 5-10 millim.

Hab. Guatemata, Chacoj (Champion).

The specimens taken at this locality, nine in number, all agree in presenting a very

distinct form of coloration. This species is no doubt very closely allied to O. binotata ;

but there are no connecting forms, and I believe it will prove distinct. ~The antennz

are nearly twice as long as the head and thorax. The thorax is indistinctly carinate, and

with an obsolete tubercle behind. The pubescence is velvety and shining, disposed in

three lines on the thorax. The species of this genus vary very much in size, probably

not so much in colour.

5. Orthopleura ichnoides.

Platynoptera ichnoides, Chevy. Rev. et Mag. 1874, p. 73’.

Hab. Mexico, Cordova ! (Sallé).

It is odd that the affinities of this insect did not strike M. Chevrolat; but it is never-

theless a veritable Orthopleura. The antenne are longer than usual; and the thorax

has two black lines in addition to the sides being black in the normal manner.

Two specimens are all that were in Sallé’s collection when it was acquired by the

editors.

6. Orthopleura teneroides. |

Oblonga, subcylindrica, nigra, subopaca, capite obscure rufo, prothorace rufo, vitta mediana integra lateribusque

ad angulos anticos nigris. Long. 7-11 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

The smaller specimens of this species, probably the males, are much narrower than

the larger ones, which also have the ventral apical segment elongate spathulate. The

head is obscurely red between the eyes. The thorax is clothed with sericeous hairs, which

are red on the rufous portion; the sides beneath and a rather wide vitta extending from

the front to the hind margin are black. The elytra are distinctly punctured, the punc-

tures being close, very irregular in shape, and the interspaces dull. The antenne are

_of ordinary length ; the intermediate joints as in O. purpurea &c., set with strong tufts

of black hairs, and the three terminal joints about equal in length to the basal part.

Five specimens from Bugaba, one from Chiriqui.

CHARIESSA.—PELONIUM. 187

CHARIESSA.

Chariessa, Perty, Del. An. Art. Bras. p. 109; Lac. Gen. Col. iv. p. 478; Gorh. Trans. Ent. Soc.

1877, p. 417.

Brachymorphus, Chevr. Col. Mex. Cent. ii. no. 150.

Only four species can, I think, be properly retained in this genus; they are very

closely related to Pelonia, but with an unusually dilated form. One species (rami-

cornis) is found in Brazil and mimics a Phytophagous insect of the genus Celomera ;

the others are North American.

1. Chariessa vestita.

Brachymorphus vestitus, Chevr. Col. Mex. Cent. ii. no. 150°.

Chariessa vestita, Klug, Mon. p. 368, t. 1. £. 10; Spin. Mon. ii. p. 88”, t. 45. f. 2.

Hab. Mexico, Toxpam 1, Cordova (Sallé), Paso del Macho (Hége); Guatemata, El

Reposo, Rio Maria Linda (Champion); Nicaragua, Chontales (Belt, Janson).—Soutu

AMERICA, Brazil 2.

A well-known beautiful insect, but apparently rare. Two of the examples from

Chontales have the body above and the elytra obscurely reddish instead of violet,

and seem to be more densely clothed with woolly pubescence. These possibly corre-

spond to the var. A of Spinola. Ihave not seen specimens from South America myself ;

but as this insect has such a wide range north of the isthmus, it may, of course, occur

there.

PELONIUM.

Pelonium, Spinola, Mon. i. p. 347; Lac. Gen. Col. iv. p. 479 ; Gorh. Trans. Ent. Soc. 1877, p. 417.

Lasiodera, Gray, Griff. An. K. Ins. t. 48.

Philhyra, Cast. Silber. Rev. Ent. iv. p. 53.

Enoplium auctorum ; Lampyris, Forster.

This is an extensive genus, composed of somewhat variable elements, but having

strong natural affinities, which it would be difficult to keep distinct. It embraces,

broadly speaking, those members of the Cleride which have the tarsi apparently four-

jointed, the antennee ten- or eleven-jointed, terminated by a three-jointed serrate club, the

intermediate joints being all distinct and not hairy on their inner edges. Thus taken,

it isa genus rich in species in equatorial North and South America, witha few aberrant

species passing the tropical limits in both continents. Species very closely representing

this genus occur in New Zealand, and in other parts of the world, as Laos, from which

country a species (eatraneum, Gorh.) is hardly distinguishable, and has been referred

toit. Of true Pelonia, i. e. of American species, about eighty are described, only three of

which have been recorded from Central America. The districts of Panama and Costa

Rica, however, are probably not less rich in species, in proportion to their areas, than

South America.

2B 2

188 MALACODERMATA.

1. Pelonium stenochioides.

Pelonium stenochioides, Chevy. Rev. et Mag. Zool. 1874, p. 74°.

Hab. Mexico}.

M. Chevrolat (Mémoire, p. 37) says this and his P. semivittatum are allied species.

The latter=P. helopioides, Cast. 1 have not seen it.

2. Pelonium nigroclavatum.

Pelonium nigroclavatum, Chevy. loc. cit. p. 75}.

Hab. Mexico, Teapa in Yucatan ! (Pilate).

Apparently not unlike the species which follows; Chevrolat compares it with his

piciventre from Cuba described in the same paper.

3. Pelonium notabile.

Subparallelum, punctatum, rufo, piceo pallidoque variegatum ; prothorace inequali, tuberculis elevatioribus

rufo-piceis, postice nigro-piceo; elytris unicostatis, pallidis, punctis piceis maculisque nigris adspersis,

fascia irregulari ante apicem rufo-picea, ad suturam latiore, nigro marginata, apice subalbido levi ;

antennis pallidis, articulorum penultimorum duorum apicibus et ultimi medio nigris; pedibus anticis

nigro-piceis, basi tarsisque fulvis, posticis et intermediis pallidis, geniculis tibiisque externe nigro tinctis.

Long. 8-9 millim.

Hab. Panama, Bugaba (Champion).

A beautiful species, but difficult to describe: it reminds one of P. scopariwm, Klug ;

but its surface is more uneven, and its colours are different. The head is pitchy black

in front, rufous behind, with two darker lines, one from each eye to the base; it is

sparingly but distinctly punctured behind; the eyes are coarsely granulate, the antenne

rather longer than head and thorax, the club equal to basal portion, last two joints

but one triangular. The thorax is longer than wide, with a central short sulcus,

and a pit on each side of the centre surrounded by rufous elevated but irregular

and confluent tubercles; the sides are tubercularly widened. The elytra are very

coarsely punctured, the punctures honeycomb the surface; the costa reaches the sub-

apical fascia; the yellowish-white apical patch is unpunctured.

Four specimens are all that have been sent.

i. Pelonium amenum.

Pelonium amenum (Guérin), Spinola, Mon. i. p. 3587 ?

Pelonium fasciculatum, Spin. Atlas, t. 36. f. 3.

Hab. Panama, Bugaba (Champion).—Sovutn America!, Brazil (coll. Gorh.), Magellan}.

The identification is not certain; but the specimen from Brazil in my own collection

is certainly the same as the single one collected by Champion. The apical joint of the

antenne is yellow. The thorax is smooth, with small lateral tubercles; the spots on

PELONIUM. 189

the thorax are more diffused and the hinder ones confluent; but in other respects this

insect seems to agree with the figure.

5. Pelonium amabile. (Tab. IX. fig. 15.)

Pelonium amabile, Spin. i. p. 862", t. 33. f. 1; Chevr. Rev. et Mag. Zool. 1874, p. 26°.

Hab. Panama, Volcan de Chiriqui (Champion).—Soutn America, Colombia *, Guiana,

Cayenne, Brazil ?.

The scutellum, club of the antenne (excepting the tip of the apical joint), and three

joints preceding it are pitchy black. The elytra are vaguely and very obsoletely

punctured.

Only one specimen was met with by Champion.

6. Pelonium percomptum.

Precedente angustius ; prothorace longiore, ad basin utrinque linea nigra; elytris pallidis, scutello concolori,

fortiter striatim punctatis, singulis postice macula irregulari obliqua, versus apicem convergente, rufo-

testacea nigro marginata ornatis ; pedibus pallidis, geniculis, femoribus medio clavisque articulis apicibus

nigro tinctis. Long. 83 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

This species is a good deal like P. amabile, but differs in many respects, particularly

in the large punctures of the basal part of the elytra (the apex from the posterior

patch onwards is smooth) and in the form of the brownish-red patch behind: in

P. amabile it is irregularly quadrate, common to both elytra; here it is separate on

each elytron, though meeting near the apex, oblique, externally with two notches, the

first forming a sinus. The apex of the antenne is dark here, but pale in P. amabile.

A single specimen only, sent by Champion.

7. Pelonium metallescens. (Tab. IX. fig. 16).

Subdepressum, oblongum, elytris subparallelis; supra eneo-plumbeum micans, capitis fronte, prothoracis lateribus

angustius pedibusque pallide flavis, his fusco variegatis, capite thoraceque profunde et rugose punctatis.

Long. 6 millim.

Hab. Guatema.a, Cerro Zunil (Champion).

Head testaceous, tips of the mandibles and of the palpi and crown pitchy; antenne

ten-jointed, of which the fourth and sixth joints are triangular and larger than the

fifth, the seventh joint is small and almost quadrate, the three club-joints subequal.

The thorax is pitchy above, with an impression on each side immediately above the

tubercles (which are yellow) ; and there is an obsolete fossa on each side of the central

line at the base. The elytra have very indistinct indications of strie; they are shining

with a brassy tint. ‘The legs are very pale, with the knees, a spot in the middle of each

tibia, and the tarsi clouded.

Three specimens from Cerro Zunil.

190 MALACODERMATA.

8. Pelonium crinitum.

Enoplium crinitum, Klug, Abhand. Ak. Berl. p. 369; Spinola, Mon. ii. p. 156, t. 33. f. 7.

Pelonium collare, Spin. Mon. ii. p. 364°.

Hab. Panama, Bugaba (Champion).—Sovutn America, Cartagena 1, Brazil, Rio Janeiro

(Lry). |

The determination of small species of Pelonium is a matter of great difficulty ; with-

out a series of specimens it is impossible to know to what extent they may vary. There

is only a single specimen of this among Champion’s captures; and it varies from the

species figured by Spinola in having the head red with a black vitta on the crown ; the

thorax is black, marked with testaceous in front on each side and on the tubercles;

and the elytra are narrower; the thorax also is longer. But I think it better to refer

it with some doubt to this species, than to make a type of a doubtful specimen.

P. flavolimbatum is another nearly allied species.

9. Pelonium quadrisignatum.

Pelonium quadrisignatum, Spin. Mon. i. p. 365", t. 33. f. 3.

Hab. Mexico, Cordova (Sallé); GuatemaLa, Chacoj, Chiacam, Volcan de Atitlan,

Teleman, Zapote (Champion) ; British Honpuras, Rio Sarstoon (Blancaneaux); PANAMA,

Bugaba (Champion).—Soutu AMErRicA, Colombia ?.

Var.? Hlytris linea basali juxta suturam maculaque lineari subapicali nigris.

Hab. Payama, Volcan de Chiriqui (Champion).

Very closely allied to P. hwmerale, Spin., which, however, has the apex of the elytra

black, whereas in this species the spot is subapical and separated at the suture and

indented on the apical side. The antenne in this and allied species are ten-jointed, a

fact not noticed by Spinola or Lacordaire.

There is a closely allied species in Brazil, which has a shorter and much more finely

punctured thorax. In the Bugaba specimen the humeral spot is wanting.

10. Pelonium bilineicolle. (Tab. IX. fig. 12.)

Pelonium bilineicolle, Chevr. Rev. et Mag. Zool. 1874, p. 76°.

Hab. Mexico !, Cordova, Toxpam (Sallé); Guatemaa, Capetillo, Cerro Zunil, Pana-

achel (Champion); Panama, David, Chiriqui (Champion).

Scarcely distinct from the preceding. The humeral spot is wanting, and the subapical

one is reduced to an angulated fascia; the thorax has two lines or the disk entirely

black; in some specimens the club of the antenne is infuscate: but these trivial characters

can scarcely be considered of specific value.

PELONIUM. 191

11. Pelonium inscriptum.

Ferrugineum, capite prothoraceque irregulariter nigro maculosis; elytris albescentibus, puncto subscutellari,

fascia tenuissimi sinuata ante medium, et macula nitidissima subapicali per lineam uncinatam cum sutura

conjuncta nigris, elytris parcius seriatim punctatis. Long. 5 millim.

Hab. Payama, Bugaba (Champion).

This charming little species is allied to the two last, but is amply distinct not merely

in colour, but in having less-cylindric elytra, flattened on their upper surface as far as the

second row of punctures, which causes the third interstice to appear costate; they are

also very white, with a neatly marked black design, the subapical spot being rather

metallic and very shining. The head and thorax (with the extreme base of the elytra)

are ferruginous, thickly punctured, and with small tubercles on each side of the disk.

The antenne are yellow at the base, the club being fuscous. They are ten-jointed.

The front pair of legs are black, with the bases and tips of the tibie and tarsi yellow ;

the two hinder pairs of legs are nearly wholly whitish yellow.

Three specimens were captured by Champion.

12. Pelonium octonotatum. (Tab. IX. fig. 13.)

Pelonio seanotato affine, sed minus, ferrugineum ; prothorace crebre fortiter punctato; elytris obovatis maculis

duabus basalibus et duabus alteris in singulis, medianis, oblique dispositis, nigris, pone medium seriatim

punctatis, punctis majoribus et minoribus sepe confluentibus. Long. 6-63 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

The colour of this species is entirely rich rusty red, with the exception of the eight

black dots, four on each elytron. ‘The antennee are of the same length as in P. sexno-

tatum ; they are eleven-jointed, third, fourth, fifth joints subequal, fusiform, hardly

widened at all on their inner sides ; sixth and seventh joints shorter; eighth shorter

still, but quite distinct. The thorax is twice as long as wide, if the tubercles on the

sides are not taken into account ; the surface is very distinctly punctured, including the

tubercles. The humeral spot on the elytra does not quite reach the base; the other

is on the base; both are elongate, but not so linear as in P. sexnotatum, &c.; of the

two middle spots those nearest the suture are placed rather further back than the

lateral ones; the apical third is nearly smooth. _

13. Pelonium lineolatum. (‘Lab. IX. fig. 14.)

Elongatum, subparallelum, nigro-fuscum ; capite (fronte excepta) prothoraceque ferrugineis, hoc macula oblonga

utrinque nigra; elytris punctato-striatis, fuscis, sutura margineque testaceis ; pedibus pallidis, anticorum

femoribus apice, tiblis tarsisque, posticorum tibiis apice et tarsis nigris. Long. 7 millim.

Hab. Guatemata, Capetillo, Cerro Zunil, Las Mercedes, Volcan de Atitlan

(Champion).

Head thickly and deeply punctate, tips of the mandibles and front above the mouth

blackish ; antenne black, ten-jointed, the fourth and sixth joints rather more angularly

widened internally and larger than the other intermediate joints, the club equal in

192 MALACODERMATA.

length to the basal part. Thorax angularly widened at sides, tubercles not very

evident, thickly and finely punctured, the front and base, underside, and a line down

the middle pale yellow. Elytra rather cylindric and parallel, deeply punctured in

series, the interstices rugose; fuscous, with pale suture and margins, not, however,

margined at the base. The legs are quite pale, the front pair with black apices to

the femora, tibize, and tarsi, the two hind pairs with the tips of tibiz and tarsi alone

black.

This insect reminds one of IJchnea vitticollis, Gorh. ['Trans. Ent. Soc. 1877, p. 415],

but is quite differently punctured, besides the difference in structure from that species.

There have been captured six examples, one of which from Capetillo is shown in the

Plate.

Subfam. CORY NETIDES.

LEBASIELLA.

Lebasiella, Spinola, Mon. ui. p. 77; Lac. Gen. Col.

Enoplium, Klug, Abhand. Ak. Berl. 1842, p. 353.

Corynetes, White, Cleride, Cat. Brit. Mus. iv. 1849, p. 45.

Lebasiella is the New-World representative of the Palearctic genera Necrobia and

Opetiopalpus, from either of which it differs inter alia in having the eyes witha ©

distinct sinus, the club of the antenne less connate, and in the mode of puncturing of

the elytra. Its range is extended over the northern continent to Pennsylvania, the

peninsula of California, and the isle of Cuba, and in South America to Colombia. A

species attributed to it from Chili is probably not congeneric. Six species are

described.

1. Lebasiella discolor.

Enoplium discolor, Klug, Abhand. Ak. Berl. 1842, p. 3537.

Hab. Mexico, Jalapa+, Guanajuato (Dugés, coll. Sallé).

2. Lebasiella pallipes. (Tab. IX. fig. 25.)

Enoplium pallipes, Klug, loc. cit. p. 853°.

Lebasiella pallipes, Lac. Gen. Col. iv. p. 489, nota.

Hab. Mexico, Jalapa 1, Guanajuato (Dugés, coll. Sallé), Juquila (Boucard, coll. Sallé),

Tolotepec, Orizaba (Sallé), Cerro de Plumas (Hége).

The specimen figured is one from Cerro de Plumas.

3. Lebasiella bisbinotata, (Tab. IX. fig. 26.)

Flavo-testacea, nitida; prothorace crebre et subtiliter, elytris parcius et profunde punctatis; his maculis duabus

subrotundatis, una humerali, altera pone medium, nigris; tarsis fuscis. Long. vix 3 millim.

Hab. Honpuras (coll. Sallé).

NECROBIA. 193

Head yellow, the apex of the mandibles and of the palpi fuscous; the latter are

awl-shaped, the maxillary pair rather acute; eyes with a distinct sinus; antenne nearly

as long as the head and thorax, with a three-jointed rather lax club. Thorax suborbi-

culate, the front margin straight, the sides and base continuously margined by a fine

line, the disk shining, with short upright dusky hairs, and (as well as the head) covered

with small but distinct punctures. Elytra much more sparingly and coarsely punctured,

the punctures oblong ; each with two roundish black spots.

A single specimen in Sallé’s collection.

NECROBIA.

Necrobia, Latreille, Préc. Car. Gén. Ins. p. 35 (1796).

The two species of Mecrobia which have occurred in Central America are truly

cosmopolitan, being, as it is probable, transported through the medium of commerce.

A few seem indigenous to Southern Europe and to Africa.

1. Necrobia ruficollis.

Dermestes rujicollis, Fabr. Ent. Syst. 1. p. 230. 18.

Corynetes ruficollis, Fabr. Syst. El. i. p. 286.

Necrobia ruficollis, Latr. Hist. Nat. Crust. et Ins. p. 156, t. 9; Oliv. Ent. iv. no. 76, t.i.f.3; Spin.

Mon. ii. p. 103, t. 43. f. 6.

Hab. Orzis TERRARUM.—MeExico, Guanajuato (Dugeés, coll. Sallé); Brivis Honpuras

(Blancaneaux).

2. Necrobia rufipes.

Dermestes rufipes, Fabr. Ent. Syst. i. p. 230. 17.

Corynetes rufipes, Fabr. Syst. El. 1. p. 286.

Necrobia rufipes, Oliv. Ent. iv. no. 76, t.i. £2; Spin. Mon. ii. p. 101, t. 42. f. 6.

Hab. Orpis TERRARUM.—MExico, Presidio (forrer), Guanajuato (Dugés, coll. Sallé),

San Luis Potosi (Dr. Palmer), Vera Cruz, Cordova, Orizaba (Sallé); Britisa Honpuras,

river Sarstoon (Blancaneaua) ; GUATEMALA, the city, San Gerdénimo (Champion) ; Panama,

Volcan de Chiriqui, Bugaba (Champion).

Var. Elytris eenescentibus.

Hab. Mexico, Oaxaca (Hoge).

As widely distributed and usually commoner than the preceding.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, July 1883. 20

194 MALACODERMATA,

Fam. PTINIDA.

Subfam. PT7NIDES.

The subfamily are distinguished by their simple antennee, which are scarcely, if at

all, serrate, and of which the three terminal joints are not very much longer than those

preceding them. The thorax is more or less coarctate behind ; and the head, though

decumbent, is not sunk into it; a further distinction is seen in the difference in the

form of the body in the sexes. Though widely distributed, this section is but poorly

represented by indigenous forms in North America: of eleven species found in the

United States, three are introduced species; and one (Eucrada) I should be disposed to

place in the Anobiides. In Central America we have to the present time eight distinct

species, apparently indigenous, yet still of the Palearctic type. The species of Hedodia

which has been recorded from Mexico is a 7richodesma. In South America they are

even more restricted, being found (if we except two species of Meziwm) only in Chili.

PTINUS.

Ptinus, Linneus, Syst. Nat. 1. pt. 2, p. 565 (1766).

Between seventy and eighty species of Péinus are described, the great majority being

from the warmer parts of Europe ; but a few are found settled in Japan and the southern

temperate zone.

1. Ptinus latefasciatus. (Tab. X. fig. 5.)

_Subparallelus, brevis, nigro-piceus; antennis, tibiis tarsisque rufis; thorace tuberculis quatuor valde elevatis,

nigro-pilosis, basi coarctata in medio fulvo-hirtella; elytris latis, oblongo-subquadratis, basi apiceque

griseo-tomentosis, fascia lata mediana denudata picea, striato-punctata, antice posticeque per lineam

dentatam determinata; scutello niveo. Long. 4 millim.

Hab. Muxico, Vera Cruz (Sallé); GuateMata, Cerro Zunil, Paso Antonio, Duefias

(Champion); Panama, David, Tolé (Champion).

This insect appears to be not unlike P. italicus, judging from the figure of that

species in the French Annals accompanying M. Boieldieu’s monograph. It is the

largest species of those we have yet received from Central America; and the larger

examples are about equal in size to large females of P. fur. ‘The suture behind is

pitchy red.

2. Ptinus albipunctum.

Nigro-piceus, oblongus ; capite latiore ; thorace tuberculis quatuor, intermediis valde, lateralibus parum elevatis,

postice valde coarctato ; elytris parallelis, punctis sex niveis, duobus ante medium juxta suturam, duobus

PTINUS. 195

pone medium magis approximatis, duobus transversis paulo post hee majoribus inter suturam et marginem

eequidistantibus. Thorax in medio pilis nigris, elytra pilis nigris brunneisque obsita. Long. 24-3

millim. ¢ 9.

Mas. Antennis quam corpus longioribus ; oculis magnis, subglobosis.

Femina. Antennis corporis longitudine.

Hab. Panama, David, Tolé (Champion).

The general colour of this insect is pitchy brown; but it is much varied with greyish

white and brown pubescence. The breast, especially at the sides, is thickly clothed

with white depressed hairs. The prominence of the eyes in the male reminds one of

Aylophilus. The two middle tubercles on the thorax are very close, and when viewed

sideways appear as one; there are usually a few white hairs at the base of each on the

outside. The elytra have longer and shorter upright hairs and six white spots of

depressed scales, the four anterior being nearer to the suture than the two subapical

larger ones are. | |

A series of specimens of equal number of both sexes of this species were taken by

Champion at David, Chiriqui. I have only yet seen a single specimen from Tolé.

3. Ptinus coarctatus.

_ Oblongus, fuscus ; thorace ad basin disci carinulis tribus parum elevatis, postice valde coarctato ; elytris fuscis

profunde punctato-striatis, pilis brunneis undique obsitis; basi apiceque pube cinerea, antice lineas duas

obliquas, postice in sutura litteram x formante vestitis. Long. 3 millim. ¢ 2.

Mas. Oculis majoribus subglobosis, quam thorax latioribus.

Hab. Mexico, Cerro de Plumas (Hége); Guatmemata, San Gerénimo, Capetillo,

Duefias (Champion).

Allied to the preceding; differs in the thoracic carine, antenne shorter in the male,

absence of the white spots, &c.

Two specimens are all that have come under my notice from Mexico; but one

from Capetillo in Guatemala may, I think, belong to the same species, and one from

each of San Gerénimo and Duefias must also, I think, be assigned to it.

4, Ptinus lateralis. (Tab. X. fig. 6.)

Oblongus, rufo-brunneus, pilosus; capite, thorace, pedibus basi elytrisque plaga magna laterali suturam haud

attingente nigro-fuscis; thorace postice valde constricto; elytris fortiter punctato-striatis. Long.

3 millim.

Hab. Guatemata, Calderas (Champion).

Head with the eyes very little wider than the widest part of the thorax, not very

prominent, crown with a double tuft of pilose hairs. Thorax with the part in front of the

constriction wider than long, below the constriction widened again at the base, clothed

with coarse and irregular pile. Elytra denuded at the base for some way down the

suture, with series of large squarish punctures similar to those in P. coarctatus.

° 20 2

196 MALACODERMATA.

Towards the termination of the brown plagia on each elytron is a transverse fine

angular line forming a broad V. The suture behind is clothed with ashy hairs; and

the apex of the elytra is rufous. A single specimen.

5. Ptinus brunneus.

Ptinus brunneus, Dufts. Fn. Aust. iii. p. 65'; Boiel. Mon. p. 649°, t. 18. £. 24?

Hab. Evrorvz, France, Sicily, Turkey!2; Norra America, United States ?—GuaTE-

MALA, Duefias, El Tumbador (Champion). |

The insect I refer to this species is so assigned with a good deal of doubt. “While

the two specimens agree with the description of P. brunneus in many points, they differ

in being smaller than I should expect, being only two millimetres long; the male is

narrower than the female; the four teeth of the thorax are scarcely observable, if

present. Still I think it may prove to be the same as the United-States species. The

pile, arranged in serial lines, is very conspicuous in the male from El Tumbador, and

it agrees with the figure very well.

NIPTUS.

Niptus, Boieldieu, Mon. Ann. Fr. 1856, pp. 290 et 662.

The seven species of this genus from Europe and Asia Minor are separated from

Ptinus on account of the body being ventricose in both sexes. Leconte has added

one species from Kansas, with which I think the species here recorded is probably

identical.

1. Niptus ventriculus.

Niptus ventriculus, Lec. Col. of Kansas, 1859, p. 13 1,

Hab. Norra America, Kansas !.—Mexico, Cordova (Sal/é); GuatemaLa, Capetillo

(Champion). |

A single specimen in Sallé’s collection and one taken by Mr. Champion seem to me

to be possibly this species. In our insect the elytra have rows of large punctures not

very close, and a scanty irregular pile somewhat serially disposed. ‘The antenne are

rather short, with subquadrate intermediate joints, the two apical longer.

TRIGONOGENIUS.

Trigonogenius, Solier in Gay’s Hist. de Chili, iv. p. 464 (1849).

The typical species of this genus are small globose insects, with the thorax not

constricted behind, and are clothed rather with scales than with erect hairs. The

species included in the genus in the Munich catalogue from the Atlantic islands were

TRIGONOGENIUS.—PITNUS. 197

separated by Wollaston under the name Sphwricus, which is synonymical with, but

prior to, Tipnus, Jaq. Duval. There is, I think, no doubt these species should be kept

separate. The species now described differ from typical Trigonogenit in being hairy ;

but their geographical range is not so far different as to make me think it would be

otherwise than rash to separate them before I have had an opportunity of examining

the Chilian type. In its hairy surface this insect presents some analogy to Piotes,

Wollaston.

1. Trigonogenius niveus. (‘l'ab. X. fig. 3, var. fig. 4.)

Ater, parce atripilosus ; thoracis disco linea alba; elytris oblongo-subglobosis punctato-striatis, singulis fascia

tenui baseos, scutello punctis duobus pone medium, et uno apicali niveo-squamosis, parvis; antennis

corporis fere longitudine, articulis gradatim longioribus. Long. 2 millim.

Hab. GuateMALA, Capetillo, Chacoj (Champion).

Var. elytris striga subhumerali, punctis duobus pone medium, margineque apicali tenuiter albis.

Hab. Panama, Volcan de Chiriqui (Champion).

Head with white scales; eyes not large nor prominent; antenne eleven-jointed,

inserted closely together; joints two to six longer than wide, subequal; joints seven

and eight a little longer (these are pubescent with greyish hairs); joints nine, ten, and

eleven rather longer, with black pubescence, the two subapical ones slightly serrate.

The thorax is scarcely wider than long, rugulose, and densely covered with short

irregular hairs ; the base is a little constricted, and its margin reflexed. ‘The elytra are

a little shining, with rows of distinct deep punctures and long erect hairs. ‘The under-

side of the body is very closely covered with white scales. |

The specimens from which this description is taken are both from Capetillo, and may

be males; they are smaller, have shorter antenne, and rather more globose bodies than

two others, which are those from which the figures in our Plate are taken. In one of

these, that from Chacoj (fig. 3), the elytra have a subhumeral elongate spot with three

others which are smaller—one nearer the margin (not appearing in the figure), two

between the larger one and the scutellum. In the other, that from Chiriqui (fig. 4),

the smaller spots are wanting; these are possibly the females of the same species. On

so few specimens it is of course not possible to form a decided opinion, especially as

they are from different localities; but it will certainly be better to consider them as

such till the question can be settled. I take the Capetillo specimens as types.

PITNUS.

Corpus parvum, oblongo-subglobosum. Caputdeclivum. Antenne novemarticulate, articulo summo claviformi.

Thorax basi leviter constrictus, marginatus. Tarsi quinquearticulati.

The nine-jointed antenne remove this minute species from any genus of Ptinide

198 MALACODERMATA.

except Niptus; and the singularly swelled apical joint, together with the deeply

punctate elytra and five-jointed tarsi, seem to me to debar its being placed in the same

genus with such insects as VV. gonospermt.

1. Pitnus pygmeus. (Tab. X. fig. 8.)

Ater, capite prothoraceque subopacis; elytris subglobosis, profunde punctato-striatis, punctis majoribus subcre-

natis ; antennis articulo ultimo incrassato suborbiculari. Long. 1 millim. .

Hab. Guatrmata, Paraiso (Champion).

This is the smallest species of the family with which I am acquainted. The colour

is totally black; the elytra have a few minute pilose hairs. The artist has drawn ten

joints to the antenne; they are, however, really nine-jointed. A single specimen is all

that has yet been found.

Subfam. ANOBIIDES.

This section of the Ptinide is distinguished from the Ptinides by the more oblong

form of the body, and by their being not of different forms in the sexes, as well as by

the species having antenne either serrate or with the three terminal joints enlarged or

very much lengthened. Of this subfamily a great many new genera have lately been

erected by authors. It is no doubt a more extensive one than the last and as widely

distributed. Many new species have been recently described from Australia, New

Zealand, and the Pacific islands. They are no doubt also well represented in both

North and South America.

A monographic revision is now much to be desired. While some of the species have

inquiline habits, like those of the Ptinides, many are truly xylophagous; one species

has been recorded as infesting the galls of a Cynips.

PTILINUS.

Ptilinus, Geoffroy, Hist. Ins. Par. i. p. 64 (1762).

Twelve species of this genus are described. It appears to be of wide distribution :

one species is described from California; and one has been recorded from Japan.

1. Ptilinus, sp.

Hab. Guatemata, El Tumbador (Champion).

Three species of Ptilinus are recorded in Crotch’s Check-list of Coleoptera of America

north of Mexico; and the single male specimen taken by Champion is very probably

identical with one of them.

LASIODERMA.

Lasioderma, Stephens, Ill. Brit. Ent. v. p. 417 (1882).

The species of this genus are for the most part European; but two are recorded

LASIODERMA.—TRICHODESMA. 199

from North America. The one noticed here has the habit of feeding upon ginger and

other articles of commerce, and may probably have been introduced.

1. Lasioderma serricorne.

Ptinus serricornis, Fabr. Ent. Syst. i. p. 241; Syst. El. p. 3261.

Pseudochina serricornis, Muls. Téréd. p. 175°; Lec. Prodr. p. 238°.

Pitilinus testaceus, Dufts. fn. Aust. iii. p. 46 *.

Xyletinus testaceus, Sturm, Fn. xi. p. 89’, t. 237. f. P, Q.

Lasioderma testaceum, Steph. Il. Brit. Ent. v. p. 417°; Kiesenw. Naturg. der Ins. Deuts. v. p. 150’.

Hab. Evrorpr, Hungary *, Germany’, England®, Spain; Norra America }3.—

Mexico, Vera Cruz (coll. Sallé).

I have only seen this in Sallé’s collection. Its habits agree with the expression in

Fabricius :—“ Habitat in Americe plantis siccis.”

TRICHODESMA.

Trichodesma, Leconte, Class. Col. N. Am. p. 204 (1861) ; Proc. Ac. Phil. 1865, p. 280.

Species of Trichodesma have only occurred at present in North America and Japan.

Three species are described, including the species representing Hedobia imperator in

Sallé’s coliection.

1. Trichodesma imperator. (Tab. X. fig. 9.)

Hedobia imperator, Cast. Silb. Rev. iv. p. 58’.

Hab. Mexico!, Almolonga (Hége), Orizaba (Sallé); GuatemaLa, Duefias, San Gero-

nimo, Cerro Zunil (Champion).

A specimen from Almolonga is figured.

2. Trichodesma albina. (Tab. X. fig. 10.)

Oblonga, nigra, pube depressa alba nigraque variegata, thorace conico-elevato maculis quatuor nigro-pilosis

ornato ; elytris albo-sericantibus, utrinque angulariter denudatis, creberrime punctato-sulcatis, punctis

transversis; antennis ferrugineis. Long. 5 millim.

Hab. GuatemaLa, San Gerdénimo (Champion).

Allied to 7. imperator, distinguished from it by the close depressed rather sericeous

white pubescence with which the thorax and elytra, with the exception of a few pilose

tufts, and the lateral almost denuded patches, are invested. The head, which is quite

sunk in the thorax, has the crown black and denuded ; the thorax covers it like a hood ;

there are no hind angles; but what must be termed the front angles are more acutely

produced than in 7. emperator. On looking at the thorax from the front, on the

summit of the cone which it forms, four black spots are seen, which leave a narrow

white cross between them; on the denuded patches on the side three or four white

pubescent dots are seen disposed in an angular band. Starting from the scutellum, the

200 MALACODERMATA.

white silky pubescence widens till it covers the apical third of the elytra. Posteriorly,

near the suture, are two minute tubercles tipped with black hairs; and behind them

are two not very conspicuous callosities. These four tubercular elevations are traceable

in the species I regard as 7. imperator; but there are in that species other squamose

points which are not found here. The legs are blackish, with ashy hairs and silky

grey pubescence. The antenne, which in 7. imperator are dark, are here rufous.

Their structure is the same.

A single specimen has occurred.

3. Trichodesma W-album.

Griseo-pubescens, maculis pilosis nigris albisque variegata ; antennis brevibus, ferrugineis, articulis tribus ultimis

picescentibus ; prothoracis dorso conico-elevato ; elytris quam thorax duplo latioribus, macula,;communi sutu-

rali nigra, scutello et fascia mediana valde dentata in medium litteram W prebente albis. Long. 32 millim.

Hab. Guaremaua, Sinanja valley (Champion).

Head covered with griseous pubescence; eyes prominent, subglobose, not so wide as

the sides of the thorax; antenne scarcely half as long as the body, rufous, the three

terminal joints as long as the basal part, apical joint fusiform, longer than the ninth or

tenth, but shorter than they taken together. Thorax densely covered with ashy and

slightly variegated scales, its middle strongly conically raised and pilose; its width is

not much more than half that of the elytra. The elytra are punctate striate ; but their

surface is but little visible. The white and black markings take the form of longi-

tudinal streaks; the most conspicuous of the black are a round spot at the central apex

of the W, and a smaller one at each of its lower angles; there is also a black square

spot on the suture at the apex, preceded by two white ones. There is but a single

specimen of this among the species collected by Champion in the Sinanja valley. It is

of course possible that the white W may not always be so conspicuous as it is in this

example.

4. Trichodesma albistolata. (Tab. X. fig. 7.)

Nigra, pilosa, cinereo-pubescens ; thoracis disco elevato, lateribus et medio, scutello, elytrorum linea humerali

fere ad apicem producta, punctoque lunulato pone medium communi cinereis; antennis nigro-fuscis,

articulis tribus ultimis valde elongatis flabellatis. Long. 23 millim.

Hab. GuateMaLA, Panima, Chacoj (Champion).

Black, with a faint leaden tinge; thorax elevated into a cone, surmounted with

black and grey pile, hiding the head, its sides and front and the tip of the cone with

leaden-grey pubescence, the rest deep black, velvety. The form of the thorax and elytra

and their punctuation are almost the same as those of the following species, from

which it chiefly differs in the remarkable development of the three terminal joints of

the antenne. The first of these is alone as long as the preceding joints taken together ;

TRICHODESMA.—ANOBIUM. 201

the second, or subapical, is equal to it; and the terminal joint is rather longer. The

disposition of the leaden-grey pubescence is also different from that of T. plumébea, and is

precisely alike in the two examples; it is distinctly and uniformly placed, and does not

appear due to denudation. It is of course not to be overlooked that this may prove to

be the male of the following species. There being an example of each from Panima

favours that supposition. On the other hand the difference in the colour of the

antennee and the appearance of the pubescence seem to indicate a separate species.

Lhe antenne in 7’. albistolata, of which there are unly two examples, are not extended,

but appear to be eleven-jointed ; and the third joint appears to me longer than those

succeeding it to the ninth, these joints being very short, not transverse, but bead-

shaped.

The specimen figured is the one from Chacoj.

5. Trichodesma plumbea.

Nigra, plumbeo-pubescens ; antennis ferrugineis ; elytris macula magna communi subbasilari denudata, alte-

Traque minore pone medium nigro-pilosis ; thoracis disco posterius conico-elevato. Long. 3 millim.

Hab. GuateMaLa, Panima (Champion).

In size and form very nearly allied to 7. W-album; the thorax, however, is wider,

and its raised cone is not surmounted by a tuft of hairs; the pubescence of the elytra

is more silky; there is a fine sparse almost black pile varying in length.

The striz and their large punctures are quite distinct. The legs and underside are

clothed with leaden-grey pubescence. |

Two specimens, agreeing very closely, have been sent. It is possible that this is the

female of 7. albistolata, as has been already remarked under that species; but if so, it

can hardly remain in this genus.

ANOBIUM.

Anobium, Fabricius, Syst. Ent. p. 62 (1775).

Anobium is strictly an Old-world genus. Species have been described from other

parts of the world; but it will probably be found that these, for the most part, require

generic distinction. One or two species, however, are carried about with commerce ;

such is the case with one of the species we record here.

1. Anobium sericatum.

Anobium sericatum, Waltl, Faun. i. 1832, p. 1677.

Hab. Mexico!; Guaremaa, Cerro Zunil (Champion).

A single specimen doubtfully assigned to this species, of which I have not seen

authentic types.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, Judy 18883. 2D

202 MALACODERMATA.

2. Anobium paniceum.

Anobium paniceum, Linn. Fn. Suec. 1761, p. 145; Panz. Fn. Germ. p. 46.6; Mauls. Ann. Soc. Linn.

Lyon, x. 1863, p. 82; Thoms. Skand. Col. v. p. 166.

Anobium obesum, Melsh. Proc. Ac. Phil. ii. p. 309°.

Anobium tenuistriatum, Say, Journ. Ac. Phil. v. p. 173°.

Hab. Evrore; Norra America! ?.—Mexico, Cordova, Puebla (Sallé).

Found feeding on various substances, and carried about with commerce. It can

hardly be considered indigenous. .

MICRANOBIUM.

Corpus parvum. Caput declivum in thoracem haud profunde receptum. Antenne 11-articulate, articulis tribus

ultimis elongatis, clavam laxe formantibus, tertio quam secundus longiore, 4° ad 8™ fusiformibus. Oculi

fortiter granulati. Tarsi distincte 5-articulati, articulo quarto valde bilobo. Abdominis segmentum

secundum longitudine tribus apicalibus equale.

The little Anobiads for which I propose this generic name are of two types—one

resembling a small Cis; the other is rather more closely like a very small Anobiwm

striatum. 'They agree very nearly in their structural details; and the length of the

second ventral segment of the abdomen seems to me a very important character

common to both of them. The first segment is very short, with a broad intercoxal

process. The tarsi are long, and could not be received into the tibie; but the legs

themselves in repose are very closely retracted.

1. Micranobium exiguum.

Piceum, subnitidum, breviter sat dense pubescens, subcylindricum, antennis pedibusque ferrugineis, oculis

prominulis. Long. 1-13 millim.

Hab. GuatTEMALA, San Gerdnimo (Champion).

Pitchy or rufous-brown above, darker beneath; the head, thorax, and elytra are

clothed with a short depressed yellow pubescence. The eyes are prominent, and the

head is exserted. ‘The thorax is not longer than wide; its margins are a very little

expanded ; dark pitchy brown, and sometimes rufous in front. The elytra usually

lighter in colour than the head and thorax, impunctate, and without strie, of the same

width as the thorax. The femora are dark, pitchy; the tibie and tarsi rufous. The

three terminal joints of the antenne are dark; they are not very long, but form a lax

club not equal in length to the basal portion.

2. Micranobium pulicarium. (Tab. X. fig. 14.)

Nigrum, opacum, elytris striatis parum nitidis, prothorace antice angusto compressoque, lateribus paululum

explanatis ; antennis pedibusque rufis. Long. 14~2 millim.

» Hab. Guaremata, Duefias, San Geronimo, Balheu, Capetillo (Champion).

MICRANOBIUM.—LIOOLIUS. 203

The thorax in this species is much compressed in front and elevated over the head,

with its front margin reflexed, and its lateral margins much sinuate. The base is also

slightly sinuous. The scutellum is minute. The elytra are punctate-striate, the striz

not deeply impressed, except at the outer margin near the apex. The underside is

closely punctured. Some specimens are reddish brown, perhaps when less matured.

Many specimens of this occurred to Champion, especially at Duefas.

LIOOLIUS.

Corpus breve, ovato-subquadratum, Dorcatomam quasi simulans. Caput receptum. Antenne 11-articulate ut

in Thaptore, at paullo breviores. Thorax elytrorum latitudine ad basin, antice angustatus, angulis anticis

reflexis, prosterno mesosternoque minutis, vix inter coxas elevatis.

This is a genus of Dorcatomini allied to Thaptor, but with the short form and black

or blue-black colour of Dorcatoma. The antennz are formed nearly as in Thaptor, but

are very short; their first joint is stout and curved; the second not longer than wide,

a little produced internally ; the third obconic, longer than wide; the fourth to eighth

very short, transverse, the fourth and fifth oblique. All the limbs and the antenne are

closely retracted in repose. The abdomen consists of five segments, of which the first

is very short, produced between the hind coxe, and not reaching the sides. The general

remarks on the genus 7haptor are equally applicable here.

1. Lioolius punctatus. (Tab. X. fig. 15.)

Nigro-cyaneus, nitidus, thorace crebre distincte punctato, capite rufo-piceo subtiliter dense punctato ; elytris

seriatim interstitiis parcius punctatis; antennis pedibusque rufis. Long. 24-3 millim.

Hab. Honpuras (Sallé coll.) ; Panama, David, Chiriqui (Champion).

This is a very distinct species, its size and steel-blue colour with a rufous head

separating it from the other species yet known. ‘The elytra have a double submarginal

stria, the inner one being very deep, but not reaching the suture behind; and both it

and the outer one vanishing towards the middle of the elytra beneath the shoulder.

The callus is tubercularly elevated and smooth. The margin of the elytra at the apex

is rufous. The punctuation, though fine, is very distinct, and nowhere confluent or

confused; that of the underside is distinct. ‘The antenne are pale rusty red, reaching

to about the middle of the metasternum.

Three specimens in Sallé’s collection, and one from Chiriqui, which is the one from

which the figure is taken.

2. Lioolius glaber.

Brevis, oblongo-ovatus, niger, nitidus, fere glaber; antennis pedibusque rufis; elytrorum margine postico

2D2

204 MALACODERMATA.

reflexo, haud striato; prothoracis angulis anticis et metasterno externe confertim punctatis, hoc medio

glabro. Long. 1-3 millim.

Hab. GuateMata, Capetillo, Duefias, San Gerdnimo (Champion).

This species is wholly shining black, almost impunctate, and without the double

stria near the margin in the apical half of the elytra; but there isa kind of smooth

sulcus in the same part. The head is smooth, much retracted into the thorax; the

eyes are oval, not convex, and but of medium coarseness, neither very fine nor coarse

in the facets. The antenne arise from very close to their inner margins in front; their

basal joint is broad, the three apical joints equal to all the preceding ones taken

together; of these the last two are subquadrate; the ninth equal to them, its base and

apical edge oblique, but it is not angular internally.

The variation in size affords some doubt as to all the specimens I have included under

this name being properly referred to one species. The characters of the genus and of

the species are drawn from examples from Duefias and Capetillo; these are 2 millim. in

length, and quite black. One from San Gerdnimo is 3 millim., and has the head rufous

as in L. punctatus.

3. Lioolius striatus.

Oblongo-ovatus lateribus parallelis, niger, nitidus ; elytris tenuiter striatis, striis minutissime punctatis, ad latera

striis gemellatis, interstitiis crebrius punctatis, margine apicali vix reflexo aut sulcato. Long. 2 millim.

Hab. Nicaracua, Chontales (Janson).

I have felt some hesitation in separating these from L. glaber; yet it is scarcely

possible to place them together, for the differences, though minute, are constant. The

elytra are distinctly striate and quite thickly punctate at the sides, although this

sculpture is so fine as hardly to be seen without a very strong lens or the microscope.

At the same time the appendages are all darker pitchy red, and the sulcate groove of

the apical margin is ail but gone. |

4, Lioolius pubescens.

Oblongo-ovatus lateribus subparallelis, breviter pubescens, brunneus, elytris minutissime punctatis, striis

perobsoletis. Long. 2 millim.

Hab. GuatemMana, San Juan in Vera Paz (Champion); Panama, David

(Champion).

Immediately distinguished from the three species preceding by the surface being

covered with a fine, close, depressed pubescence, and by its brown colour, which gives

it very much the appearance of a Cathorama, more particularly that of the species

described here as C. seminulum. It is, however (in addition to the structure of the

antenne), more ovate; the base of the thorax is more distinctly produced in its middle ;

LIOOLIUS.—THAPTOR. 205

the scutellum is more distinct. Strize or punctures are not to be seen; but the surface

appears alutaceous between the pubescence, where it is visible. I have only found two

specimens as yet of this insect.

5. Lioolius ovulum.

Ovatus, nitidus, parce pubescens, subtiliter crebrius punctatus, haud striatus, rufo-piceus. Long. 1-15 millim.

Hab. Nicaracua, Chontales (Janson); Panama, Volcan de Chiriqui (Champion).

The distinguishing characters of this species are its small size, which is scarcely more

than 1 millim., the total absence of any punctured strie, although under a very strong

lens, with a magnifying-power of 60 to 80, numerous flat-bottomed punctures are

evident. In two examples from Chontales the whole insect is covered with brown

pubescence; in one of these the two terminal joints of the antenne are as wide and,

taken together, as long as the one preceding them, while in the other examples they

are narrower. I think this is very probably a sexual character. One example from

Chontales is entirely free from pubescence ; but this may be owing to greater maturity.

I have only found four examples in all which I can with any confidence unite under

this description.

THAPTOR.

Corpus oblongum ovale, antice et postice angustatum. Caput in thoracem receptum; antennee 10-articulatz,

articulo primo magno basi latissima, 2° late suborbiculari, 3° obconico, 4° ad 7™ transversis, 5° et 7°

interne admodum ampliatis, 8° elongato, 9° et 10° subquadratis clavum formantibus. Thorax antice

fortiter angustatus, prosterno minuto minute bifurcato. Mesosternum minutum; metasternum antice in

medio productum, bimucronatum. Pedes recepti, femoribus subcompressis carinatis, tarsis brevibus.

The three species of this new genus agree very closely; the most remarkable feature is

the structure of the club of the antenne, of which the first joint is as long as the two

succeeding it; and these two are more closely connected than they are with the first, so

that at first sight the club appears two-jointed. The extreme reduction of the meso-

sternum is only a character which they possess in common with other genera of the

Dorcatomini here noticed, but which has not received the attention due to it. It is by

this reduction of its outward surface that the front and intermediate coxe are brought

into juxtaposition, the front edge of the metasternum and the hinder edge of the side

pieces of the pronotum forming a groove between them, into which their coxe are

received in repose. ‘The first segment of the abdomen is so short, and so much

excavated for the reception of the hinder coxe and femora when folded upon them,

that it only appears as a wide triangular piece between these coxe. ‘The elytra

present a single deep stria at the apical half of the margin.

1. Thaptor pupatus. (Tab. X. fig. 11.)

Oblongo-ovatus prothorace antice attenuato, nigro-brunneus, brevissime cinere-pubescens, elytris stria apicali

submarginali antice abbreviata. Long. 4 millim.

206 MALACODERMATA.

Hab. Mexico, Cordova, Oaxaca (Sallé); British Honpuras, river Sarstoon (Blan-

caneauaz); GUATEMALA, Calderas, Duefias, Zapote, Purula (Champion); Costa Rica,

Cache (fogers).

This singular-looking insect is of a dull uniform dark-brown colour, without striation

or punctures, with the exception of the short stria close to the margin near the apex,

and in some examples very faint indications of two or three striz just above the pleural

sinuation of the elytra. Its contractile power is very great, the appendages being all

neatly packed away in repose, so that the insect when laid on its back resembles a

pupa. The mesosternum is visible only as a small round point in the bifurcate

projection of the metasternum. ‘The species appears very common; a specimen from

Capetillo is figured.

2. Thaptor throscoides. (Tab. X. fig. 12.)

T. pupato summa affinitate at minor, brunneus vel nigro-brunneus; elytris ad apicem plerumque stria duplici

abbreviata. Long. 3-3} millim.

Hab. British Honpuras, river Sarstoon (Blancaneaua); GuaTEMALA, near the city

(Salvin), Aceytuno, Capetillo, Duefias, Zapote, Purula (Champion).

This is perhaps only a small form of the preceding species, which I take for the type

of the genus; but the two series of specimens are tolerably constant in size among

themselves, so that connecting links are wanting to confirm the idea that they form

but one species.

A Capetillo specimen is figured.

8. Thaptor oblongus.

T’. pupato iterum aftinis, oblongus, lateribus subparallelis; thorace antice angustato; elytris stria submarginali

antice obsoleta, infra humerum duplicata. Long. 4-5 millim.

Hab. Mzxico, Cordova (Sallé), Guanajuato (Dugés, coll. Sallé), Saltillo, Coahuila

(Dr. Palmer).

Very obsoletely pubescent, only the very shortest silky hairs being visible; the elytra

and whole upper surface are free from punctuation, and only very faint indications of

strie are to be observed. ‘The lateral stria, however, is continued nearly the whole

length of the side, but becomes very faint near the sinuate edge of the widened part of

the margin; above this part and near the base one or two other obsolete striz may be

seen. ‘This insect has very much the appearance of a true Anobium; the reduction

of the mesosternum and the structure of the antenne prove it to belong to the present

genus. ‘There are four specimens of this species in Sallé’s collection; and I have seen

four taken by Dr. Palmer which agree with them. Its more parallel form and the

difference in the marginal striz will prevent its being confused with 7. pupatus, which

it at first sight very closely resembles.

CATHORAMA. 207

CATHORAMA.

Catorama, Guérin, Rev. Zool. 1850, p. 431.

Tricorynus, Waterh. Trans. Ent. Soc. Lond. v. p. 68 (1849).

Six species of this genus have been described, with one exception from the West-

India Islands, the other one being from the United States of North America. The

club of the antenne is simply formed ; that is to say, the three terminal joints are nearly

equal in length ; but they are ten-jointed.

1. Cathorama palmarum.

Catorama palmarum, Guérin, Ann. Soc. Ent. Fr. 1851, Bull. p.115'; Lac. Gen. Atlas, t. 47. f. 3;

Candéze, Mém. Liége, 1861, p. 362, t. 3. f. 7.

Hab. Mexico, Oaxaca (Boucard, coll. Sallé), Guanajuato (Dugés, coll. Sallé), Cordova

(Sal/é); Guaremata, San Gerdénimo (Champion).— Hartt".

2. Cathorama herbarium.

Catorama herbarium (Chev. coll. Sallé).

Breviter oblongum, piceum, sericeum ; elytris subtilissime punctato-striatis, punctis gemellatis, stria submarginali

duplici, antice obsoleta; subtus, cum antennis, palpis et ore, dilutius rufo-piceum. Long. 3-3; millim.

_ Hab. Muxico, Cordova (Sal/é); Nicaragua, Chontales (Janson) ; Panama, Volcan de

Chiriqui (Champion).

This species is very closely allied to C. palmarum, but is considerably smaller and

usually of a lighter pitchy colour; and in addition to these differences the elytra are

distinctly gemellate-punctate in series. The punctures are very small, faintly impressed,

and irregular in places, obliterated near the base. The stria nearest the margin starts

from an elongate fossa beneath the callus, the one above it from near the callus itself ;

they are very faintly punctured. In the Chontales specimens this sculpture is confused

near the shoulder ; the specimens from there are also smaller on the average than the

Mexican ones.

3. Cathorama seminulum. (Tab. X. fig. 13.) |

Breviter oblongum, nigro-piceum, subtiliter sericeum, elytris vix punctato-striatis, striolis duabus antice abbre-

viatis submarginalibus ; antennis, palpis pedibusque rufo-piceis. Long. 2-23 millim.

Hab. GuaTEMAta, near the city (Salvin), Capetillo, Duefas, Zapote, Guatemala city,

Cerro Zunil, Aceituno, San Joaquin, Purula (Champion); Nicaracua, Chontales (Janson).

There is in’ our collection a very considerable series of specimens, which, though

_ varying a little in size and colour, we are disposed to unite under one specific name.

These are generally darker in colour than C. herbariwm and smaller; but the characters

208 MALACODERMATA.

which are most trustworthy are the absence of any groove or fossa below the callus, the

shorter submarginal strie, which do not commence till the middle of the margin, and

the generally uniform aspect of the punctuation. When the silky pubescence is quite

removed, sometimes very faint indications of the gemellate striae may be seen. In the

specimens from Duefias, which I take as the types, the front of the head and the

underside are densely squamose, with white hair-like scales; but this is not the case in

some other examples, from which I conclude this is easily rubbed off during life. This

little insect when its limbs are retracted must closely resemble a small black seed. It

about the size of, and not uulike the European Dorcatoma flavicornis. There is

only one example labelled “Chontales,” most of the specimens from that locality

being referable to C. herbarium.

The example figured is one from Duefias.

DORCATOMA.

Dorcatoma, Herbst, Kafer, iv. p. 103.

Cenocara, Thoms. Scand. Col. v. p. 174.

Enneatoma, Muls. et Rey, Téréd. p. 367.

Anitys, Thoms. Scand. Col. v. p. 175.

I have taken Dorcatoma in its more extended sense, the subdivisions represented by

the synonymy above being based for the most part upon the reduction of joints in the

antenne from ten to eight. Our Central-American species on this view would require

at least one new genus; for we have an eleven-jointed species, but the eight-jointed

species are not similar to Anitys, or indeed to any European species. About a dozen

species of Dorcatoma are known: three occur in North America, two in Japan, one in

South Africa; the remainder are European. The power of retracting the limbs is very

perfect. The species occur in rotten wood, in the puff-ball (Lycoperdon), and (Anitys)

in the oozing sappy “ frass” which exudes from wounds in oak trees.

Section A. Antenne eleven-jointed.

1. Dorcatoma tomentosa. (Tab. X. fig. 16.)

Subhemispharica, valde convexa, dense breviter cinereo-pubescens, macula denudata rotunda circa scutellum

antennis pedibusque testaceis. Long. 3-33 millim.

Hab. GuatEMALa, San Gerdnimo, Cerro Zunil (Champion).

The head in this species is transverse; the eyes widely separated and finely granu-

lated. The antenne, although eleven-jointed, are formed as in typical Dorcatome, the

basal joint being large and wide and a little curved ; the second is triangular, the third

to the eighth very short and together not longer than the following joint, which is

widely and angularly developed on its inner side, the apical margin being a little

DORCATOMA. 209

emarginate; the tenth is longer and less wide, the eleventh fusiform. The elytra are

very finely and closely punctured, and with very fine strigee or scratches, with some

finely impressed strize; these can of course only be seen where the elytra are denuded,

which is the case in the specimen from Cerro Zunil. Three submarginal strize, how-

ever, are easily observed. The pubescence is shining and horny; it is especially dense

on the front and sides of the prothorax.

A specimen from San Gerdnimo is figured.

Section B. Antenne ten-jointed.

2. Dorcatoma quadrimaculata. (Tab. X. fig. 17.)

Piceo-nigra, nitida, antennis pedibusque picescentibus ; elytris striato-punctatis, singulis maculis duabus, haud

bene determinatis, rufo-testaceis. Long. 2 millim.

Hab. Guatemaa, Las Mercedes ( Champion) ; Panama, David (Champion).

Short, oblong, very convex, almost hemispherical. Head quite sunk in the prothorax,

pitchy. Thorax very finely punctured, and with sparse, very short grey pubescence ;

base and sides more thickly punctured, the former rather bowed in the middle, the

latter forming indistinct hind angles. Elytra shining, with distinct rows of separate

punctures, which are deeper below the shoulders, the callus nearly smooth. Two deep

submarginal striz, distinct at the apex, passing into punctured series at the base. The

pubescence is very sparse, and only distinct at the apex, where it is subsetose. Of this

very distinct species only three specimens have yet occurred. ‘The antenne are

apparently ten-jointed, the five intermediate being very short, the two subapical ones

dentate, transversely triangular, subequal.

Section C. Antenne eight-jointed.

3. Dorcatoma contracta.

Breviter orbicularis, nigra, nitida, parce breviter pilosa ; elytris parce punctulatis, striis duabus submarginalibus

profunde impressis; antennis ferrugineis ; pedibus piceis, femoribus dilutioribus. Long. 1-2 millim.

Hab. Guatremata, Calderas, Capetillo, Aceituno 9 % (Champion).

This is a very short and broad insect, with a prominent humerus, two well-marked

strice close to the margin, which are entire, and a short one near the shoulder above

them. The antenne have the first joint of the club, ¢.e. the sixth, very strongly and

dentately produced internally, so that the width is greater than the length; the two

terminal ones are subequal and not angulate. The example from Aceituno has the

base and three terminal joints of the antenne pitchy, and the sixth or first club-joint

scarcely produced. It may probably be the female.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, July 1883. 2K

210 MALACODERMATA.

Fam, BOSTRYCHIDZ.

The Bostrychide are a family of small extent, clearly related in many of their details

to both the Cleride and the Anobiides. They are, as far as is known, xylophagous;

and we meet with here a curious modification of the apical portion of the elytra, for

the purpose of ejecting the comminuted fragments of wood from their bores, which is

so obviously analogous to that in the Scolytidé as to be frequently mistaken for a case

of real affinity. The distribution of the smaller species is nearly universal; but it is in

tropical Africa that the most highly developed types occur, in the genus Apate. ‘The

New World, however, shows a very considerable contingent, both in number of species

and their size.

Subfam. BOSTRYCHINT.

POLYCAON.

Polycaon, Castelnau, in Silberm. Rev. Ent. iv. p. 30 (1836).

About ten species of this genus are known. ‘The typical species is a Chilian insect ;

one is described from Demerara; the remainder are peculiar to the northern continent

of America.

1. Polycaon exesus. (Tab. X. figg. 189,196.)

Polycaon exesus, Leconte, Proc. Ac. Phil. 1858, p. 74; Horn, Revision, Proc. Am. Phil. Soc. 1878,

p-. 553°.

Hab. Norru America, peninsula of Lower California !.—MeExico, Cordova (Sallé, ¢ ) ;

GuATEMALA, Torola( 3 2 ), San Gerénimo (Champion, @ ).

The description of the female, which was the only sex known to Leconte and Horn,

perfectly agrees with our insect. I feel no doubt in uniting the males in Sallé’s and

Champion’s collections with this, especially as the latter collector met with both sexes

at Torola: the specimens figured in our Plate are both from the latter locality. The

largest specimen (one from Cordova) is 21 millim. in length; the head is finely and

closely granulate all over; the thorax thickly punctured on the disk with a fine

impressed central line; the elytra nearly glabrous, their apex obliquely declivous, the

margining carina extending so far as to form scarcely more than a semicircle; at the

top of the declivity near the suture a longitudinal subdentiform callus. The smaller

male (also from Cordova) is 12 millim. long; it agrees with the larger one, excepting

that the thorax is more compressed laterally, the elytra have a few coarse punctures at

their bases, and the suture more evidently raised at the apex. The male from Torola

is intermediate in size, but is clearly of the same species. I possess males which I

POLYCAON.—LYCTUS. | 211

refer to this species with some doubt, which have the sides of the elytra plicate, but of

which I do not know the exact locality *.

2. Polycaon plicatus.

Polycaon plicatus, Leconte, Trans. Am. Ent. Soc. 1874, p. 65; Horn, Proc. Am. Phil. Soc. 1878,

p. 5581. ¢. .

Polycaon obliquus, Lec. loc. cit. p. 66 ; Horn, loc. cit. ?.

Hab. Norta America, Texas .—Mexico, Cordova, Peras (Sallé).

The male specimen from Peras does not altogether agree with the two from Cordova ;

for its elytra are nearly smooth and are not plicate at the sides; but even the two from

Cordova vary a good deal in sculpture, one having an indistinct subapical callus, while

the other is much more thickly punctulate, and I think it much more probable that

they all belong to one species. I have carefully considered them, together with a

specimen (a female) of P. obliquus from Texas, and feel sure these species should be

united. The plication of the elytra is probably a very variable character and common

to other species.

Subfam. LYCTIVI.

LYCTUS.

Lyctus, Fabricius, Ent. Syst. i. p. 502 (1792).

This is one of those doubtful forms which are so difficult to place anywhere satis-

factorily, having various affinities. I think, however, the sum of its characters are

more in harmony with the Bostrychide than with any other family; and it is nearer,

perhaps, to Psoa than to any other genus. Kiesenwetter, in the ‘ Naturgeschichte der

Insecten Deutschlands,’ has thus placed it; and he states the neuration of the hind wings

fully to bear out this view. Species of Zyctws occur in various parts of the world,

including Ceylon, New Zealand, North America, and Chili.

1. Lyctus carbonarius.

Lyctus carbonarius, Walt], Faun. i. p. 167 (1832) °.

Hab. Mexico 1.

Unknown to me.

* T have not thought it well at present to make an alteration in the name of this species, for lack of direct

evidence; but I feel convinced that this species is Apate femoralis, Fabr. Ent. Syst. i. 2, p. 361, which descrip-

tion refers to the male, and that Apate gonagra, Fabr. (Ent. Syst. Suppl. p. 157; Syst. El. ii. p. 380), refers to

the female. These species “ Had. in Americ insulis,” 7. ¢. the Antilles. I myself possess very old specimens

of each sex from the Isle of Barthélemy thus labelled, and which are thus conspecific with the insect here

recorded. The early writers on North-American insects have not attempted to account for all the Linnean

and Fabrician species.

242

212 MALACODERMATA.

2. Lyctus prostomoides.

Oblongus, brunneus ; prothorace subquadrato, postice parum angustato, minute punctato, medio depressiusculo ;

elytris breviter sericeo-pubescentibus ; capitis fronte transversim impressa, epistomate utrinque ante oculos

elevatiore. Long. 34—4 millim.

Hab. Guarema.a, Capetillo, San Gerdnimo, Purula, El Tumbador (Champion); Panama,

San Lorenzo (Champion).

Species of Lyctus are usually very variable in size; the present species will probably

form no exception to this rule, although, of about a dozen specimens collected by Mr.

Champion, the size only varies about half a millimetre. Its colour is rusty red or rich

brown; and it is distinguished from other species known to me by the absence of linear

pubescence, very faint and obsolete strize alone being discoverable on the elytra. ‘The

ridge in front of the eyes commences at the insertion of the antenne, and in other

species only forms the tubercle from which they arise. The thorax is very even and

nearly square, but narrows behind, the sides being very straight ; the central depression

is wide and shallow, and bifurcate in front. ‘The elytra are less parallel than in some

species, as they narrow slightly towards their apex ; the pubescence, which is depressed

and not in series, is yellow. ‘The above description is from specimens from El Tumba-

dor, where Mr. Champion took eight specimens.

3. Lyctus griseus.

Oblongus, nigro-piceus, opacus, dense griseo-pubescens; antennarum articulo ultimo rufo; prothorace haud

fossulato, subquadrato, angulis posticis obtusiusculis; elytris seriatim pubescentibus, vix puuctatis.

Long. 13-3 millim.

Hab. Guatemata, San Gerdénimo, Paraiso (Champion).

The specimens from San Gerénimo agree in being more densely and coarsely pubescent

than any species known to me. The two from Paraiso are not.only browner red in

colour, but seem to have more rigid and sparser hairs in rows on the elytra; one of

these is a very small example; the smallest of the San Ger6nimo specimens is fully two

millimetres in length. In these two specimens the antenne and legs are rusty red ;

but in all the San Gerdnimo ones they are dark with the apical joint clear red. The

absence of any distinct thoracic fovea is a good character; a central line is sometimes

indicated in the disposition of the hairs, which are very dense and hide the actual

surface of the disk. I have little doubt that this is a very distinct species; and possibly

the Paraiso species is different.

APATE.

Apate, Fabricius, Syst. Ent. p. 54 (1775).

The type of Apate is A. terebrans, Pall., which is taken to be the same as 4. muricata,

Fabr., the former being found in Africa, the latter in America. With this type we

must join about a dozen species of middle or large size found in various parts of the

APATE.—BOSTRYCHUS. 213

tropics. The occurrence of the same species in Africa and South America is a

remarkable feature in their distribution. The whole family, and especially the larger

species, need careful revision, when perhaps some further explanation of this anomalous

fact may be hoped for.

1. Apate punctipennis.

Apate punctipennis, Leconte, Proc. Acad. Philad. 1858, p. 73.

Amphicerus punctipennis, Horn, Proc. Am. Phil. Soc. 1878, p. 547.

Apate deflexa et tristis (Sturm, coll. Sallé).

Had. Nortu America, Texas, Utah, New Mexico, Arizona, California State and

peninsula.—Mexico, Cordova (Saidé), Presidio (Forrer), San Pedro, Coahuila; Guajuco,

Nuevo Leon (Dr. Palmer).

The species of Apate have the most intimate affinity even when from distant parts of

the world; and their close resemblance makes their determination very difficult. I am

at present uncertain whether more than one species exists in Mexico; for, although I

have a second species so labelled in my own collection, it does not accord with the

characters given by Horn for A. fortis, Lec.

The present species may be recognized by the acuminate dentiform points in the

front margin of the thorax being approximate and nearer together than the eyes, and

also by the funiculus of the antenne, composed of the third to the seventh joints, being

much longer than the three terminal ones, with the joints themselves bead-shaped,

longer than broad. The apex of the elytra is declivous; in the specimen labelled

A. deflexa there are two acute callosities; but in most of the specimens there is merely

an abrupt termination of the convexity of the elytron leaving a sort of round callus ;

the interstice nearest the suture is faintly raised. In the other species which I possess

referred to Mexico, the antennal funiculus is shorter than the club, and scarcely longer

than the second joint; its joints are strongly transverse and connate.

BOSTRYCHUS.

Bostrichus auctorum nec Geoffroy, Hist. Ins. p. 301.

The type of Bostrichus is B. capucinus, Linn., as reference to Geoffroy makes apparent,

which is an Apate. This is therefore one of those instances in which, if the rule of

priority be observed, a long-established and generally received genus must be suppressed.

I here adopt the name for those species which have the elytra more or less tubercular

or costate, and the labrum distinct from the clypeus, and therefore in the same sense

in which Mr. Horn has used it for the North-American species found in the United

States. In the Munich Catalogue, under this generic name, are included many true

Apate ; but, restricted as above, I have not seen species I should include excepting

from the New World. ‘The presence of hind angles or more or less truncation of the

214 MALACODERMATA.

prothorax behind is of no use (as Mr Horn has himself observed) for the separation of

these genera ; and I am inclined to reserve a detailed examination of the question for a

revision of the whole family.

1. Bostrychus verrucosus. (Tab. X. fig. 22.)

Niger, opacus, prothorace antice uncinato-bicorni, disco granulato, medio subsulcato, angulis posticis subrectis ;

elytris seriebus duabus tuberculorum, ad apicem valde callosis, apicibus singulis excisis, externe mucro-

natis. Long. 8-12 millim.

Hab. Guatemaa, Capetillo, El Tumbador, Cerro Zunil (Champion).

The figure is taken from a Cerro Zunil example. .

Smoky black, with a greyish tint like burnt cork, wider behind than in front. Head

with the labrum distinct, transverse; maxillary palpi with the apical joint acuminate ;

summit of the head evenly granulate. Thorax narrower than the elytra, with distinct

hind angles, and the sides and disk roughened with tubercles, which become tooth-like

curved points in front, two of which project over the head. ‘The elytra are very much

roughened with tubercles, which posteriorly end in callosities. ‘There are two or three

series of these tubercles: the larger ones are elongate; and between them are flat-

bottomed punctures.

The underside is a little shining, but is finely punctured.

SINOXYLON.

Sinozylon, Duftschmidt, Fn. Aust. iii, p- 86 (1825).

A very widely distributed genus, of which Bostrichus bispinosus, Oliv.,=Sinoxylon

muricatum, Dufts., &c., is the type. The species of this genus have ten-jointed antenne ;

the club has the first two joints strongly produced internally, and they are of the serrate

form, the five preceding are very short, together not being much longer than the first

club-joint ; many species from Asia and the Hast generally have the elytra flatly and.

obliquely truncate, sometimes with two mucros from the centre of this declivity. The

species referred to this genus by North-American authors do not pertain to it, but to

Aylopertha or Enneadesmus, or to new genera parallel to them. We have, however,

one species from Guatemala, due to the systematic collecting of Mr. Champion.

1. Sinoxylon championi.

Oblongum, cylindricum, antennis tarsisque rufo-testaceis; prothorace antice muricato, granuloso, medio

transversim eleyato, basi crebre granuloso-punctata; elytris nitidis, confuse crebrius punctulatis, apice

oblique declivo, haud calloso. Long. 5 millim.

Hab. GuaTEMALA, Chacoj (Champion).

This is rather a ‘robust species, with the thorax equal in breadth to the elytra, and of

SINOXYLON.—XYLOPERTHA. 215

more than half their length. The labrum (as is usual in other genera of this family) is

fringed with golden hairs. Of the two specimens we have received, one has the granu-

lations of the front of the thorax rather more pronounced than the other, and three of

them form denticules; the mandibles are simple, but notched at the tip. The elytra

and whole body are black without any tendency to redness. The suture is depressed in

the declivity ; and there is there a faint sutural stria ; the apex is evenly punctured, like

the rest of the elytra.

This is the only American species of Stnorylon I have yet seen,

XYLOPERTHA.

Xylopertha, Guérin-Méneville, Ann. Soc. Ent. Fr. 1845, Bull. p, 17.

Sinoxylon, sec. A, Horn, Proc. Am. Phil. Soc. 1878, p. 541.

Aylopertha differs from Sinorylon in having the three terminal joints of the antenne

elongate and arranged in sequence; in Sinoxylon, of which S. muricata, an Austrian

insect, is the type, the same joints are arranged in a perfoliate club, the first and

second joints of the club being transverse, much developed internally. The type of Xy/o-

pertha is X. sinuata, also from Austria ; ‘and the North-American species referred by

Horn to Sinoxylon, Dufts., must be brought into it, or a new genus be made for them,

for which there is no present occasion. About fifteen species are catalogued of this

genus, widely distributed, and many more undescribed exist in collections; but no

doubt some of these will present generic differences from the European type. I have

not seen species of this genus in which the apex is so abruptly truncate as in

Sinoxylon.

1. Xylopertha sericans. (Tab. X. fig. 21.)

Sinoxylon sericans, Lec. Proc. Ac. Philad. 1858, p. 73, ¢

Sinoxylon asperum, Lec. loc. cit., 2.

Sinoxylon sericans, Horn, Proc. Am. Phil. Soe. 1878, p. 542°.

Sinoxylon mexicanum, De}. (Sallé coll.).

Hab. Nortu America, Texas !, California peninsula !,—MeEx1co, Cordova (Sallé, 3 2),

Presidio (Forrer, 3 2), Minas Viejas (Dr. Palmer, 3 2); GuatEMALA, San Geronimo,

Zapote (Champion); Honpuras (d Sallé coll.); Panama, Tolé (Champion).

This species is, I have no doubt, the S. sericans of Horn and Lec. ; but the expression,

“The elytral punctures becoming gradually coarser from the base to the declivity,”

affords me some perplexity, as the reverse is the case here. The curious development

of the left mandible into a horn-like process in the male leaves little doubt on the

subject. The Guatemala specimens are rather larger and darker, the Honduras one

216 MALACODERMATA.

(a male) redder at the base of the elytra than the Mexican specimens. Champion did

not meet with the male.

The specimen figured is one from San Gerénimo.

2. Xylopertha tubularis.

Elongata, cylindrica, nigro-picea, prothorace subopaco dense granuloso-punctato, antice muricato, utrinque

denticulis quinque; elytris nitidis, crebre obsoletius punctatis, versus apicem callo duplici cariniformi,

margine apicali reflexo; pedibus piceis. Long. 8 millim,

Hab. Panama, Bugaba (Champion).

More elongate and cylindrical than X. sericans. Almost black; the antenne are

fuscous, and the legs a little paler; the abdomen is clothed with sericeous hairs. The

head is finely, obsoletely, and confluently punctured, with a deep transverse impression

between the eyes. The punctuation of the elytra is irregular and transversely confluent.

The apex obliquely declivous and punctate, the lower of the two callosities most distinct.

A single specimen is all I have seen yet.

Very closely resembles a species from New South Wales, which, however, has the

apical margin notched in a remarkable way and sharper callosities.

3. Xylopertha scapularis.

Elongata, cylindrica, parum nitida, nigra; prothorace antice muricato, denticulis quatuor vel quinque utrinque

prominentibus, basi crebre subtiliter punctata, medio tenuiter canaliculato; elytris crebre subruguloso-

punctatis, apice declivo, haud calloso, breviter fulvo-pubescente, humero rufo. Long. 4-5 millim.

Hab. Mexico, Orizaba (Sallé), San Andrés Tuxtla (Sa//é); Guaremaa, Cerro Zunil,

San Joachin, Torola (Champion).—Var.? GuatEMALA, San Gerdnimo, Chacoj (Cham-

pion) ; Panama, San Lorenzo (Champion).

The nearest ally of this species known to me is X. basilaris (Sinoxylon basilare, Say),

from which it differs in the punctuation being finer and closer, especially at the apex,

where in that species it is very coarse. It lacks the raised interstices which are very

conspicuous at the base of the elytra in X. bastlaris ; and the denticulations on each side

of the declivity are also wanting. The specimens from Chacoj, and one from San

Geronimo, are small, and the bases of the elytra are only indistinctly rufous-brown ;

but otherwise they do not differ from the typical ones of this species.

4. Xylopertha sextuberculatum.

Sinoxylon seatuberculatum, Lec. Proc. Acad. Philad. 1858, p. 73; Horn, Proc. Am. Phil. Soc. 1878,

p. 543°.

Hab. Nortn Amzrica, California!, Texas (Belfrage)—MeExico, Guanajuato (Dugés,

coll. Sallé); Guatemaua, San Gerdénimo (Champion).

XYLOPERTHA.—DINODERUS, 217

5. Xylopertha quadrispinosum.

Sinoxylon quadrispinosum, Leconte, New Sp. N. Am. Col. i. p. 100’; Horn, Proc. Am. Phil. Soc,

1878, p. 543°.

Hab. Norra America, California peninsula, Cape St. Lucas !, Arizona ?.—Guatz-

mMALA, Cerro Zunil (Champion).

Very close to X. sextuberculatum ; but the short carinate interstices at the base are

wanting, and there are but two teeth on each side at the apex; these, however, are very

acute and prominent. A single specimen was captured by Champion.

DINODERUS.

Dinoderus, Stephens, Ill. Brit. Ent. ui. p. 354 (1880).

Dinoderus appears to be separated from /hizopertha on very slight and hardly suffi-

cient grounds. It is also not very much differentiated from Xylopertha; but the tarsi

are shorter. The first section, Dinoderus proper, contains about eight species, the

type being a rare insect found in England. One species occurs in Madeira; and the

rest are North-American. Rhizopertha, on the other hand, has a cosmopolitan species

for its type (R. pusillus); and twenty-six species are catalogued from all parts of the

world.

1. Dinoderus punctatus.

Apate punctatus, Say, Journ. Acad. Philad. v. p. 258.

Dinoderus punctatus, Horn, Proc. Am. Phil. Soc. 1878, p. 550°.

Hab. Norra America, United States, Pennsylvania !, Texas (Belfrage).— GUATEMALA,

Mexico, Ciudad in Durango, 8100 feet (Forrer), San Gerénimo (Champion) ; Nicaragua

(Sallé coll.).

2. Dinoderus pusillus.

Dinoderus pusillus, Fabr. Ent. Syst. Suppl. p. 156°.

Rhizopertha pusilla, Steph. Ill. Brit. Ent. iii. p. 354°; Fairm. Rev. Zool. 1850, p. 50°; Jacq.

Duval, Gen. Col. iii. t. 57. f. 281°; Kiesenw. Nat. der Ins. Deutschl. v. p. 41.

Dinoderus pusillus, Horn, Proc. Am. Phil. Soc. 1878, p. 550°.

Hab. Evrore2?4; “ America Ins.”1, United States®°—Mexico, Vera Cruz (Sallé

coll.) ; Honpuras, Belize.

Common in wood of sugar-casks &c., and, according to Dr. Horn, in wheat. It does

not appear to have been met with in any numbers in Central America. The thorax

has the tubercles arranged in somewhat concentric rings, uniting into undulating ruge

in front. ‘The tibiz are setulose, and the elytra coarsely punctate-striate.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, Judy 1888. 2F

218 MALACODERMATA.

3. Dinoderus substriatus.

Dinoderus substriatus, Payk. Fn. Suec. ii. p. 142 (Apate); Jacq. Duval, Gen. Col. iii. t. 56. f. 280;

Perris, Ann. Soc. Ent. Fr. 1862, p. 209, t. 6. f. 578-586; Horn, Proc. Am. Phil. Soc. 1878,

p. 549.

Hab. Evrope; Asta; Cutna; Burman; New Guinea, Dorey (Wallace); CELEBES

(Wallace) ; West Arrica; North America, Canada, United States.—Honpuras (Sadlé

coll.) —Soutn America; Braziu.

The above localities show this to be another cosmopolitan species. It does not,

however, appear to be injurious or to be met with in numbers; in our own country it

is decidedly of rare occurrence. A single specimen is all we have seen from Central

America at present. It may be recognized by two oblique foveee on the base of the

thorax, and by the close and confused puncturing, which on the dorsal region has a

substriate look.

TETRAPRIOCERA.

Tetrapriocera, Horn, Proc. Am. Phil. Soc. 1878, p. 544.

_ Xylopertha (pars), Lac. Gen. des Col. iv. p. 539.

Easily recognized by the four-jointed club and very short third to seventh joints,

which are obliquely transverse. But one species is known to me; it is plainly that

described by Dr. Horn, but had been previously described and figured by Olivier.

1. Tetrapriocera longicornis. (‘Tab. X. fig. 20.)

Apate longicornis, Oliv. Ent. iv. 77, p. 15+, t. 8. f. 18, a-c; Gemm. & Har. Cat. Col. p. 1790’.

Tetrapriocera swartzi, Horn, Proce. Am. Phil. Soc. 1878, p. 545 °.

Hab. North America, Florida?.—Mexico, Cordova, Teapa, Tuxtla (Sad/é); Brivisa

Honvuras (Blancaneaux); Guatemata, El Reposo, Zapote, Torola, Rio Maria Linda

(Champion) ; Nicaracva (coll. Sallé), Chontales (Janson); Costa Rica, Cache (Rogers) ;

Panama, Bugaba (Champion).—West-Inpia IsLanDs, Haiti!?°, Guadeloupe; Souts

America, Brazil (coll. Gorh.).

The specimen figured is from Bugaba.

Fam. CIOIDZ.

This family is of such small extent that it might form a section of the Ptinides but

that it is in some respects more strongly differentiated than are the Bostrychide, and

so to sink them in one or other of the other families is simply to ignore those

important distinctions which have seemed sufficient to some coleopterists to justify

their being placed in quite another of the larger aggregates, and would open the

question of whether Lyctus could be retained here.

MACROCIS. : 219

MACROCIS.

Macrocis, Reitter, Mittheilungen der Miinchener ent. Ver. 1878, p. 34.

Corpus breve, oblongum, equaliter ovatum. Caput (maris) longe bicorne, (feminz) utrinque dente acuto ;

antenne decemarticulate, articulis duobus basalibus validis, tertio elongato, 4° ad 7” perbrevibus, con-

junctim quam secundus vix longioribus. Tarsi breves, articulo ultimo elongato, validi.

Before I had seen Herr E. Reitter’s description I had drawn up the characters of a

genus which I proposed to make for a short and broad species, of which the male has

two long raised horns on the head curving backwards a little; the female has also two

dentiform elevations, but little raised. The thorax is unarmed and is very convex,

hiding the head from above, the horns alone showing in this position. With regard to

the antenne, it is difficult, even with the microscope, to determine whether there are

four or five of the very short joints between the third and the club; it is therefore

uncertain whether they are ten or eleven-jointed; but I think it is as I have stated.

(Reitter states them to be ten-jointed in his generic diagnosis.)

Only two species have come under my own notice.

I think it well to give my own characters as I had drawn them, as I have not at

present seen Herr Reitter’s insect; they agree so closely with his own that I feel no

doubt, from his description, that his type is the same species as I had described under

another name.

Herr Reitter describes two others from Colombia.

1. Macrocis taurus. (Tab. X. fig. 25, 3.)

Macrocis taurus, Reitter, Mittheil. d. Miinch. ent. Ver. 1878, p. 35’.

Breviter oblongus, equaliter rotundatus, antice posticeque niger, nitidus; thorace parce, elytris obsolete striato-

punctatis; antennis rufis, pedibus piceis. Long. 2 millim. ¢ 2.

Mas. Fronte valde bicorni.

Femina. Fronte utrinque parum elevata, vel dente sublaminato parvo.

Hab. Mexico !, Cordova (Sallé); GuateMaLA, San Geronimo, Senahu, Las Mercedes

(Champion); Panama, Bugaba (Champion).

~ Body glabrous, or nearly so; but under a strong glass the flat-bottomed punctures so

frequent in this family are sparingly scattered over the thorax, and are more thickly so

on the elytra, being obsolete at the sides and apex; but the larger ones are arranged in

series. ‘The thorax is margined at the sides, less distinctly so at the base; being very

convex, the front and hind angles are both depressed; they are rounded. Less mature

specimens are piceous. The eyes are very coarsely granulate; the horn in the male

(the lamina in the female) arises from close to the eye, but they do not appear to me

to be emarginate.

Herr Reitter’s description is in a periodical very hard to obtain; and I have to

acknowledge his courtesy in sending me a copy. I think it well to allow my own

220 MALACODERMATA.

description to remain, as it was penned before reading his, and agrees very closely in

all points with it. His MW. diabolicus and M. bison, from Colombia, are rather larger-

A single female specimen from Bugaba is more finely punctured, and may belong to

one of these.

2. Macrocis setifer.

Breviter oblongo-ellipticus, crebre fortiter punctatus, piceus, elytris seriatim dense setiferis. Long. 14

millim. ¢ 2. ;

Mas. Fronte lamina duplici, basi latiore valde dentiformi erecta.

Femina. Clypeo utrinque elevatiore reflexo.

Hab. Guaremata, Senahu (Champion).

A smaller and shorter species than J. taurus, and readily distinguished by the

setiferous elytra. The thorax and elytra are a very little contracted at the base, which

causes the outline of this species to be less evenly elliptical than that of M/. taurus.

The tarsi are very short. The elytra are punctate-striate ; but the punctures are very

much closer than in the first species, and are transverse, subcrenate. The margin, both

of the thorax and elytra, is reflexed and flat. MV. bison, Reitter, loc. cit., is described as

“longe fulvo-pilosus,” but is 2:5 millim. long, and appears to differ otherwise.

Three specimens, one male and two females, are all that I have seen.

CIS.

Cis, Latreille, Préc. Car. Gén. Ins. p. 90 (1796).

About one hundred species of Cis have been described, chiefly from the northern

temperate zone; a few, however, occur at the Cape of Good Hope and in tropical

latitudes. The species are not strongly differentiated, not highly specialized, and might

be regarded as representing a primitive and persistent type.

1. Cis corticinus. ,

C. boleto summa affinitate, sed elytris non distincte punctatis, haud substriatis, quam corpus paullo longiore,

prothorace haud transverso mox distinguendus. Caput clypeo margine leviter reflexo ; antennis sat longis,

clava picea, basi testaceis, articulo tertio elongato quam quartus duplo longiore. Thorax antice margine

bisinuato, medio emarginato; lateribus leviter rotundatis marginatis, basi subtilissime marginata,

Elytra parum nitida, creberrime subtiliter et equaliter punctata. Long. 4 millim.

Hab. Guatema.a, Calderas, Totonicapam (Champion).

2. Cis fasciatus. (Tab. X. fig. 23.)

Breviter ovatus, subcylindricus, nitidus, piceus; elytris sordide flavis, fascia mediana maculaque magna

subapicali infuscatis. Long. 2 millim. ¢ 9.

Mas. Prothorace antice bituberculato; clypeo margine reflexo, obtuse sexdentato.

Femina. Prothorace mutico, clypeo margine reflexo leviter sinuato.

Hab. Muxico, 'Teapa (Sallé); Guaremaa, San Isidro, Zapote (Champion).

CIS. 221

Punctuation very fine, not evident; the prothorax with some ashy pubescence; the

elytra have a very short golden pruinose pile. Head with the clypeus raised at the

margin from one eye to the other. In the male this is notched in front in the middle,

and with a double sinuation on each side, so that six blunt teeth are formed in the

margin. The thorax quite covers the head, when viewed perpendicularly; in the male

two projecting tubercles are present on the front; in the female it is quite plain.

The figure is taken from a male Zapote example.

I have retained the MS. name which this insect bears in Sallé’s collection.

3. Cis bubalus.

Cis bubalus, Reitter, Mittheil. d. Miinch. ent. Ver. 1878, p. 32°.

Breviter oblongus, subparallelus, nigro-piceus, nitidus, antennis rufis, elytris pruinosis. Long. 23

millim. ¢ Q.

Mas. Prothorace antice acute bituberculato, clypeo margine obtuse quadridentato.

Femina. Prothorace mutico, clypeo margine leviter reflexo.

Hab. Mexico}, Cordova (Sallé), Oaxaca (Boucard, coll. Sallé); GuatemaLa, Cerro

Zunil, San Juan, Chacoj, El Tumbador, Zapote (Champion).

Very closely allied to C. fasciatus, but usually black or pitchy, without any trace of

a fascia. ‘The thorax is as wide as the elytra, with the sides parallel in the male, the

front a little narrowed in the female; and the projecting tooth-like tubercles are more

prominent than in C. fasciatus. ‘The very short pruinose pile of the elytra is thicker,

and is of a golden shining appearance; the punctuation fine, but close and distinct. A

large number of this were taken, especially at San Juan in Vera Paz. The specimens

from Oaxaca are immature.

I have no doubt from his description that this is the Cis bubalus of Reitter, whose

diagnosis of the male is:—‘“ Mas. Clypeus apice sublaminatus, lamina trisinuata, obtuse

quadridentata; thoracis margine antico bidentato.”

4. Cis bisbidens. (Tab. X. fig. 24, ¢ .)

Oblongus, subcylindricus, nigro-piceus, parum nitidus, crebre punctatus. Long. 3 millim. ¢ 9.

Mas. Capite antice bidentatus, prothorace spinis duabus acutis, antice subrecte productis.

Femina. Prothorace antice obsolete bituberculato.

Hab. Mexico, Orizaba, Puebla (Sallé).

Of the same size and in form not unlike Cis bubalus; the males are readily recog-

nized by the two acute thorn-like productions from the thorax, and by the ¢wo laminar

elevations of the margin of the head in front. Of four specimens there are two males

and one female from Orizaba, and one female, which cannot certainly be identified, but

is probably of the same species, from Puebla. It will probably be found that the

females of this species have less bulky thoraces than Cis bubalws, with which they

222 MALACODERMATA.

might be confounded. Two of the specimens from Orizaba have black heads and

thoraces and red-brown elytra; but very little dependence can be placed on colour in

this family.

5. Cis bilimeki.

Bilimeki, Reitter, Mittheil. d. Minch. ent. Ver. 1878, p. 33°.

‘Oblongus, niger, opacus, equaliter confertissime punctulatus, setulis brevissimis subaureis dense tectus ;

thorace coleopterorum latitudine, subtransverso, lateribus leviter rotundato, angulis anticis obtuse rectis,

posticis fere rotundatis; elytris latitudine haud duplo longioribus ; antennis pedibusque testaceis.” Long.

2:2 millim.

“ Mas. Clypeus apice, prothoracis margine antico erecte laminatis, lamina capitis lata parum, prothoracis sat

angusta fortiter in medio emarginata.”

Hab. Mexico ! (Bilimek).

Unknown to me. Herr Reitter remarks :—“Scheint selten zu sein.”

6. Cis pilosus.

Ovatus, testaceus, supra dense flavo-pilosus, elytris obsolete subseriatim punctatis, pilo seriatim disposito.

Long. 2 millim.

Hab. Guatemata, Calderas (Champion).

Head with the mandibles rather prominent, clypeus a little elevated on each side.

Prothorax of the male with the front margin a little produced and elevated in a lamina,

but only very slightly so, nearly smooth, transverse. Scutellum broadly triangular.

Elytra conspicuously pubescent, the upright pile in lines.

Six specimens, immature, or at least not fully coloured, taken at Calderas.

7. Cis creberrimus.

Cis creberrimus, Mellié, Mon. p. 357, t. 4. fig. 5.

Hab. Norta America, United States, New Orleans.—Mexico (coll. Gorham ex

Saunders); GuatemMata, Zapote, El Reposo (Champion).

A single specimen from each of the localities doubtfully assigned to this little species.

It is an elongate thickly punctured insect, with erect setose hairs and quite yellow legs

and antenne ; the latter are clearly ten-jointed in the Guatemala specimens.

8. Cis puberulus.

Cis puberulus, Mellié, Mon. p. 538.

Hab. Mexico (coll. Gorham ex Saunders).— West LnviEs, Island of St. Thomas.

CIS.—CERACIS. 223

9. Cis punctatus.

Cis punctatus, Mellié, Mon. p. 337°.

Hab. Norta America !.—Guatema.a (Sallé coll.), Zapote (Champion).

This appears to me to have eight-jointed antenne; there are, however, only three

specimens. It is uniformly and rather coarsely punctured all over, about 1 millimetre

long. They are named as above in Sallé’s collection. A single specimen was met with

by Champion. The male has the thorax bituberculate in front. Possibly this and

Ennearthron multipunctatum are not distinct species. It is therefore doubtful if the

identification is correctly made.

ENNEARTHRON.

Ennearthron, Melhé, Rev. Zool. 1847, p. 110.

Eutypus, Redt.

Small species, distinguished by having nine-jointed antenne; some have protube-

rances on the thorax.

1. Ennearthron multipunctatum.

Ennearthron multipunctatum, Mellie, Mon. p. 368", t. 4. £. 16.

Hab. Wrst Invia-Isuanps, Cuba !.—Mexico (coll. Gorham ex Saunders).

CERACIS.

Ceracis, Mellié, Ann. Soc. Ent. Fr. 1848, p. 375.

Extremely small species, remarkable for having in the males a bifurcate laminate

horn on the head, and sometimes the prothorax also horned. The antenne have

eight joints.

Five species are included in the Munich catalogue, two being from Cuba; but of

these some are apparently but synonyms of one species.

1. Ceracis militaris. (Tab. X. fig. 26, ¢.)

Ceracis militaris, Mellié, Mon. p. 378+, t. 4. f. 23.

Ceracis furcifer, Mellié, Mon. p. 379°, t. 4. £. 24 (see Sallé coll.).

Hab. Mexico !, Tuxtla, Cordova; Guatemata (Sadlé coll.), San Juan in Vera Paz,

Zapote (Champion).

224 MALACODERMATA.

In the ‘Check List of the Coleoptera of America north of Mexico,’ which was edited

by Mr. Crotch, this species is quoted as synonymous with C. sallei, Mell. I have no

examples from the United States, and therefore I cannot assert that it is so*. The two

species standing in Sallé’s collection under the names cited above are identical. ‘This

species may be known by its very small size (the largest examples are not above

1 millimetre in length, and the smallest are considerably less), by its shining aspect,

the thorax narrowing in front and with a few very small scattered punctures, and by

the single bifid laminar horn on the head; the thorax is unarmed. ‘The figure is

taken from a San-Juan male specimen.

2. Ceracis tricornis. (Tab. X. fig. 27, ¢ .)

Nigro-piceus, nitidus, thorace elytrorum latitudine, parce profunde punctato, elytris distincte punctatis.

Long. #-1 millim.

Mas. Capite cornuto, cornu bifido; prothorace antice bimucronato.

Femina. Capite thoraceque muticis.

Var.? capite cornu truncato, tenui, prothorace antice bituberculato.

Hab. Mexico, Teapa, Cordova (Sallé coll.); Guatemana, San Juan in Vera Pay,

Tamahu, Zapote (Champion).

This species varies a good deal in the development of the thoracic projecting teeth,

but will be distinguished from C. militaris by the deeper and sparser punctuation of

the thorax, and by its not narrowing in front: these characters, in addition to the

teeth on the thorax, induce me to consider it a separate species. ‘The thoracic teeth

and often the horn of the head are yellow, the rest of the insect being pitchy with

yellow antennz and legs, the club of the former darker. Of the supposed females of

this insect nothing reliable can at present be said, as I do not see that they differ

essentially from those of C. militaris, and both species occur in the same localities.

The specimens from which the figures of both of these species in our Plate were taken

were collected at San Juan, probably having been found at one time and place.

* Reitter (loc. cit. p. 37) says C. sallei is not identical with C. militarts, and that the latter has nine joints

to the antenne: and is an Ennearthron. According to my own observation the insects which we here regard as

C. militaris and C. furcifer, being so labelled in Sallé’s collection, have eight joints. But even if there were

nine it would not follow they were congeneric with Ennearthron.

b9S

SUPPLEMENT.

Sincz the commencement of the present volume in 1881 a large number of specimens

have arrived from Messrs. Godman and Salvin’s collectors, among which are a consider-.

able number of new species. Mr. Champion’s journey into the interior of the State

of Panama has also been productive of a vast number of species, proving that the rich

fauna of Central America is far from being exhausted at present. It is the object of

this Supplement to describe and record these, as well as to indicate any. corrections and.

additional facts which may have come to light during the progress. of the work.

LYCUS (p. 1).

Lycus fernandezi (p. 2).

To the Mexican localities given, add :—Northern Sonora (Morrison).

Specimens sent from the above locality and ticketed “‘ Lycus cruentus; var.,” are-

identical with LZ. fernandezi. If this determination is correct, Dr. Leconte’s name would

be adopted for this insect; but I have not yet seen specimens from Arizona or Cali-.

fornia, which are quite as. likely to be referable to one ef its near allies.

LYCOSTOMUS (p. 4).

Lycostomus sordidus (p. 5).

To the localities given, add':—Mexico, Istapan (coll. Saldé); GuaTeMaa, Sinanja,.

Sabo in Vera Paz (Champion).

8 (a). Lycostomus angulatus.

Niger, subopacus, sat elongatus; prothoracis lateribus-elytrorumque triente basali ochraceo-flavis ; nigritudine.

apicali versus basin angulariter porrecto. Long. 7-12 millim. ¢ Q.

Mas. Tibiis omnibus basi leviter curvatis..

Hab. Guatemata, Sinanja valley, Sabo in Vera Paz (Champion).

This is very nearly allied to Z. sordidus. It is, however, less expanded behind, and’

has the basal third of the elytra orange-yellow,. with the black forming a: sharp inden-

tation. The tibia are much less strongly curved, and the antenne-seem to have their

third joint only about half as long again as the fourth. A series of. the smaller speci-

mens were taken by Mr. Champion in the dense forest at Sabo..

BIOL. CENTR.-AMER., Coleopt.,. Vol. III. Pt. 2, August 1884. 2 G.

226 SUPPLEMENT.

5 (a). Lycostomus rusticus.

Ochraceus; abdomine, antennis (articulo basali excepto), tibiis tarsisque nigris; ore cum palpis fuscatis, pro-

thorace lateribus leviter foliaceis, reflexis ; elytris postice subrotundato-ampliatis. Long. 16 millim. ¢.

Hab. Muxico, Cordova (Hége).

Easily distinguished from any species from Central America, except the following, by

its ochraceous colour above; from Z. bucolicus it differs in having no tinge of black at

- the apex of the elytra, in the body beneath and the tibie being black, and in the

narrower thorax, with the sides much less foliaceous. The antenne have the basal

joint only yellow. The prothorax has an obsolete channel, and is duller than in L. buco-

licus; the coste of the elytra are less raised.

A single specimen, of the sex of which I am not certain, but which from the mode-

rately bent tibize I think to be a male, has occurred.

5 (s). Lycostomus bucolicus, (Tab. XI. fig. 1,¢.)

Ferrugineus vel ochraceus; antennis (articulis duobus basalibus exceptis), palpis, tarsis elytrorumque apice

indeterminate nigris; prothoracis lateribus fortiter foliaceis, reflexis; elytris distincte quadricostatis.

Long. 14-16 millim. ¢ 9.

Var. Tibiis nigrescentibus.

Hab. Panama, Tolé (Champion).

The thorax in this species is rather wide and lunate, the front is bisinuate, sometimes

appearing to have a double notch ; the centre of the disk has an obsolete channel, not

reaching the front, where, indeed, there is a short carina. The antenne are black, but

the two basal and the inner side of the third joint are yellow. The rostrum is rather

long and thin, not differing in the sexes. The tibie of the males are moderately

curved. The black at the apex of the elytra varies a little in extent, but is never much

more than a spot undefined internally. Found very abundantly on the savannas near

Tolé on a yellow-flowered composite shrub, about the flowers of which it may be seen

flying in the hottest sun; large numbers were taken in copuld. ‘This species should

precede L. loripes, Chev.

Lycostomus loripes (p. 6).

To the Mexican localities given, add :—Northern Sonora (Morrison).

Lycostomus sommeri (p. 6).

To the Mexican localities given, add :—Ventanas, alt. 2000 feet (Forrer).

Mas. Tibiis leviter curvatis, apicibus intus mucronatis.

Var.? Prothorace sulco nigro, abdominis segmentis sex ventralibus serie duplici nigro-maculatis.

7 (a). Lycostomus sanguineus.

Late sanguineo-rufus ; antennis, tarsis elytrorumque apicibus nigris; elytris intervallis subrugosis. Long.

12-13 millim. ¢.

Hab. Mexico, Northern Sonora (Morrison).

MATLACODERMATA. 227

Very nearly allied to L. sommeri, but amply distinguished by the red tibiz, coarser

sculpture of the elytra, their brick-, or rather blood-red colour, and by its peculiarly

shining, waxy look.

Six specimens, all males.

LYGISTOPTERUS (p. 7).

5. Lygistopterus ceruleus.

Nigro-ceruleus, nitidus; prothorace disco nigro lateribus rufis, elytris saturate cyaneis. Long. 16-17 millim.

dQ.

Mas. Tibiis leviter curvatis, segmento apicali utrinque lamina pubescente, prothoracis angulis posticis sub-

acutis, elytris postice ampliatis.

Hab. Guatemaa, Quiche Mountains (¢ ), Totonicapam (Champion, @ ).

The elytra are entirely of a deep blue in this very distinct and beautiful species.

The thorax differs in shape in the sexes; being wider in front, with more rounded sides,

in the female; its margins are much thickened and raised, except at the base. The

rostrum is very short in the female, longer in the male. The apical segments of the

abdomen are not so elongated as in most Lycide, the one preceding the one here termed

“apical” being raised in the middle, acutely emarginate, somewhat compressed, with

acute lateral lobes. Only three specimens (one male and two females) have yet

occurred. ‘These were captured in the pine-forests, at elevations of from 8000-

10,500 feet.

6. Lygistopterus letus. (Tab. XI. fig. 2, 3.)

Nigro-ceruleus ; prothoracis disco nigro lateribus rufis, elytris lete aurantiaceis vel rufis, apicibus saturate

eeruleis. Long. 12-15 millim. ¢ 9.

Mas. Antennis longioribus, tibiis curvatis apicibus mucronatis.

Hab. Panama, Volcan de Chiriqui 6000 to 7000 feet (Champion).

Very distinct in the system of its coloration from any species yet described, the apex

of the elytra and their suture at its base alone being black, with a very faint blue tint.

The body beneath is blue-black; the head, antenne, palpi, and legs black. The

rostrum is very short and stout, the head being simply produced a little in front. The

thorax is not wider than the elytra at their base; it is subquadrate, rather longer than

wide, black, with the sides broadly yellow; the disc is shining. The scutellum and

base of the suture are black, the elytra have the raised lines scarcely distinct, and the

whole surface is thickly clothed with close pubescence, hiding any sculpture. Two

specimens are all that have occurred. These were found in the dense virgin forest and

at high elevations.

Two specimens from Northern Sonora, Mexico (Morrison), in bad condition, labelled

“Calochromus, sp.,” probably belong to this species, but they are very much smaller than

my type.

2G 2

228 SUPPLEMENT.

7. Lygistopterus flammeus.

Niger, nitidus prothoracis lateribus elytrisque sanguineo-rufis, his sutura basi nigricante. Long. 13 millim.

Hab. Panama, Volcan de Chiriqui 6000 feet (Champion).

Very similar to Z. lwtus, and scarcely differing from it except m the colour of the

elytra, which are of a fine carmine or blood-red, without any indication of black at

their apex; the suture is more narrowly black at the base; and two or three cost are

tolerably distinct. This may possibly prove to be a variety of L. latus; but I have

not seen varieties of other species; and it is at least a very curious and beautiful form.

The specimen is, I believe, a female, and is the only one I have seen.

Lygistopterus hematopterus (p. 8).

Hab. Mexico, Pinos altos, Chihuahua (Buchan-Hepburn).

Four specimens, altogether agreeing with my type; possibly this is synonymous with

L. rubripennis, Lec. |

The late Dr. Leconte [Trans. Amer. Ent. Soc. ix. p. 28, 1881] has referred four of

the North-American species of this genus to Calochromus, Guérin—a type with which

they have nothing to do. Calochromus is exclusively an Eastern genus. I have seen

species labelled Calochromus by Dr. G. Horn; they are inseparable from Lygistopterus.

8. Lygistopterus ——?

Hab. Mexico (coll. Sallé); GuaTeMaua, Sinanja valley (Champion).

Two specimens, not altogether agreeing, and which I cannot refer to any known

species. They are black, with the sides of the thorax and base of the elytra yellow.

Allied both to LZ. sulcicollis and L. letus.

LUCAINA (p. 8, to follow the genus Lygistopterus).

Lucaina, Dugés, La Naturaleza, iv. p. 180.

The position of this curious genus is, I am convinced, close to Lygistopterus. I

omitted it formerly, not feeling sure where to place it. ‘The head is rostrate, the

produced part being very wide at the base.

1. Lucaina schini.

Lucaina schini, Dugés, La Nat. iv. p. 180, t. 6. fig. 7.

Hab. Mexico (coll. Sallé).

An orange-red insect; with the head, antenne, legs, and body beneath black in the -

male ; in a female example before me the head, and femora, are yellow. The elytra are

closely and obsoletely striate; the thorax is more quadrate than in the following new

MALACODERMATA, 229

species, with a rudely-formed channel, the sides of which are ridged and joined by an

oblique curved ridge with the lateral margins; the disc is sometimes marked with

blackish, and the scutellum black.

2. Lucaina marginata. (Tab. XII. fig. 8.)

Nigro-picea, parum nitida; prothorace antea et lateribus, elytrorum limbo laterali ante apicem desinente,

femoribus anticis et intermediis aurantiaceis, rostro etiam nonnunquam flavo ; elytris profundius striatis,

disco subceruleo. Long. 6-63 millim. ¢ 9.

Hab. Mexico, Northern Sonora (Morrison).

Readily distinguished from Z. schini, not only by the colour, which appears very

constant (with the exception that the head is sometimes more or less yellow), but by

the more shining appearance and deeper striation of the elytra. The thorax is very

uneven ; the central ridges are twice interrupted by a deep transverse depression, so that

the central channel only appears as separate and very irregular fovee. The sculpture of

the elytra is wholly different from that of L. schini, being finely rugulose. In L. schini

it is not easy to see the separate strie; here they are quite distinct. About a dozen

examples were taken.

The figure is that of a female specimen.

CALOPTERON (p. 8).

Calopteron bifasciatum (p. 8).

To the localities given, add:—GuateMALa, Chacoj (Champion); Panama, Bugaba,

Volcan de Chiriqui (Champion).

Found in plenty at Chacoj in the Polochic valley.

Calopteron pallidum (p. 9).

To the localities given, add :—Panama, Bugaba, Volcan de Chiriqui (Champion).

A series of specimens which I refer to this, but which show no trace of a fascia, were

collected by Mr. Champion.

Calopteron divergens (p. 11).

This species would be better placed following C. pallidum. A large number of

specimens captured at Bugaba and the Volcan de Chiriqui are, I think, referable to

the species described under this name from Nicaragua. ‘he males are in general

smaller, and have their elytra more divergent at the apex than the females; while

one form lacks the dark fascia near the base, and then rather nearly resembles C.

corrugatum. Other specimens, which have the dark fascia, are very close to C. reticu-

latum, but these are always to be separated by the more expanded form of the elytra,

which, as in C. pallidum, have the row of cells in the fifth or external interval

230 SUPPLEMENT.

divided. The pear-like form, somewhat shining surface, with the transverse lines

forming the cells fine and close, and not clathrate, are the best characters I can give

at present for its recognition.

Calopteron palpale (p. 10).

Taken by Mr. Champion in great profusion at Bugaba and on the Volcan de Chiriqui;

the great bulk of the specimens being of the var. 4; but a variety occurs which one

might be tempted to name, in which the usual dark fascia and apical patch are faintly

shadowed out, and the legs are more fuscous. ‘The specimens of this variety are nearly

all males of middle size; but I found one female possessing the same characters, and

some with imperceptible gradations of tint to the quite yellow form.

9 (a). Calopteron planulum.

Ochreo-flavum ; femoribus apice, tibiis tarsisque fuscescentibus ; antennis nigris, articulis duobus basalibus infra

flavescentibus. Long. 9-10 millim.

Hab. Panama, Bugaba (Champion).

Elytra moderately expanded behind, and in the male dehiscent at the apex, with

four coste ; cells not very close; transverse coste with a few short yellow sete. The

head is often slightly infuscate between the eyes. The thorax longer than wide, bell-

shaped, with acute and rather prominent hind angles. There is sometimes a faint

indication of a dark fascia on the outer margin. In size and colour a Jittle like

C. unicolor, Kirsch, according to a specimen so named for me by M. Bourgeois; but

less parallel, with a much smaller thorax and darker antenne and legs. Seven

examples taken.

Calopteron flavipes (p. 11).

To the localities given, add:—GuvatTeMALA, Mirandilla, San Isidro, Pantaleon

(Champion); Panama, Bugaba (Champion).

Calopteron juvenile (p. 12).

To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

Taken in considerable numbers by Mr. Champion.

13 (a). Calopteron costatulum.

Calopteron costatulum, Kirsch, Berl. Zeit. 1865, p. 58*; Bourg. Ann. Soc. Ent. Fr. 1879, p.17”.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion), Matachin (Thieme).—

Cotomsia 2, Bogota 4.

Three specimens seem referable to this species; it is very near to C. posticum, but

MALACODERMATA, 231

larger; the elytra are pale yellow, with a more or less obsolete basal fascia, and the

tips black ; the legs yellowish, with infuscate knees, tibie, and tarsi; the body yellow.

It is very doubtful to me whether this, and some allied species, can be maintained as

distinct.

Calopteron triste (p. 13).

To the localities given, add:—Muxico, Jalapa (Hoge); GuatemAua, San Gerdnimo,

Zapote, Cerro Zunil, Quiche Mountains (Champion); Panama, Volcan de Chiriqui

(Champion).

Var. Prothorace fere toto humerisque flavis. ¢@.

Hab. Mexico (Flohr), Cordova (Hége).

15 (a). Calopteron funestius.

C. tristi affine, nigrum, elongatum, opacum; elytris lineis tribus paullo elevatis, intervallis crebre haud

regulariter corrugatis. Long. 9-10 millim. ¢ 9.

Mas. Antennis pectinatis vix flabellatis.

Femina. Antennis acute serratis.

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

Allied to C. triste, but duller, entirely black, and with the intervals of the cost

(which are much less raised) with very close irregular transverse lines, scarcely ever

forming cells.

Two specimens in Sallé’s collection are all I have yet seen.

Calopteron rufulum (p. 13).

To the localities given, add :—Panama, Bugaba, Volcan de Chiriqui (Champion).

Taken commonly. Some examples are very small, and have the centre of the thorax

and scutellum infuscate.

16 (a). Calopteron sinuatocolle.

Elongatum, nigro-piceum ; prothorace elytrisque sordide flavis, illo disco carinato, medio infuscato, his tricostatis

triente apicali nigro-fusco ; ore, pectore et trochanteribus flavo-testaceis. Long. 9-10 millim. Q.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

This is at first sight rather puzzling from its resemblance to species of the

C. matutinum group. It has, however, an entire carina to the thorax, the sides of

which are bisinuate, much as in C. rufulum, to which it appears related. The base of

the thorax is bisinuate, the middle being angularly produced to meet the carina, and

not notched. The elytra are very slightly infuscate on the suture at the base, and the

apical patch leaves the margin pale for some distance towards the apex.

The antenne of the female are acutely serrate.

232 SUPPLEMENT.

Only three specimens, and those all females, have been detected by me as yet among

the vast number of Lycide collected in Chiriqui by Mr. Champion.

Calopteron obliquum (p. 14).

The specimens from Chontales referred by me to C. obliguum I now separate ; and as

I have not seen C. obliquum, Say, from there, the habitat given must be removed and

transferred to the species now described at C. bifurcatum.

18 (a). Calopteron bifurcatum.

Lineare, nigrum; prothoracis lateribus et margine frontali elytrorumque dimidio basali (sutura pretermissa)

ferrugineis ; prothoracis carina fortiter clevata postice tenuissime canaliculata, basi prominula altius elevata,

fortiter bifurcata. Long. 5-64 millim.

Hab. Nicaragua, Chontales (Janson) ; Panama, Bugaba (Champion).

Var. Fere tota nigra; elytris basi thoracisque limbo piceis.

Hab. Panama, Volcan de Chiriqui (Champion).

There is no difficulty in separating this from C. obliqguum if the smaller size and

differences in the carina of the thorax are observed. From C. suturale it differs in the

greater amount of black of the elytra, but it resembles it in the formation of the thoracic

carina, which is, however, more strongly developed here.

18 (s). Calopteron suturale.

Lineare, nigrum; prothoracis lateribus et fronte marginali elytrisque ochreis, his sutura ad basin apiceque

nigris ; elytris costis quatuor, prima et tertia vix distinctis, secunda et quarta fortiter elevatis. Long. 5-8

millim. ¢ Q.

Mas. Antennis acute serratis.

Femina. Antennis serratis.

Hab. Panama, Volcan de Chiriqui (Champion).

Head black ; thorax with a simple carina, but the base elevated in the middle, and

the carina notched here so as to appear bifurcate. Elytra linear, with two double and

one single row of scalariform well-marked cells; the second and fourth coste much

raised. Legs, antenne, palpi, and body black; the central portion of the thorax and

carina, the scutellum and suture, as far as the middle, and apex of the elytra also dull

black ; the palpi are yellow at their bases, and the trochanters and bases of the femora

are more or less tinted internally with the same colour. A large number of specimens

were collected by Mr. Champion. This species is allied to C. obligquum and more nearly

to C. melanurum, Kirsch ; I believe it, however, to be distinct from the latter, and that

among other differences the more strongly raised alternate costee and the black apical

joint of the antennee will distinguish it.

The antenne are serrate in both sexes, rather more acutely so in the males, which

are more linear, and usually smaller than the females.

MALACODERMATA, 233

18 (c). Calopteron rubrotestaceum. (Tab. XI. fig. 3.)

Calopteron rubrotestaceum, Bourgeois, Ann. Soc. Ent. Fr. 1879, p. 237.

Hab. Panama, Volcan de Chiriqui (Champion, ¢ ).—CotomBts, Medellin.

Resembles C. pennatum, but the elytra are unicolorous, and of a dull brick-red colour.

In our examples they are not infuscate round the scutellum as in those described by

M. Bourgeois; but I have little doubt they pertain to the same species, which hardly

differs from C. pennatum except in colour. Five specimens, all females.

Calopteron lineare (p. 14).

To the localities given, add :—Guatema.a, El Tumbador, Cerro Zunil (Champion) ;

Panama, Volcan de Chiriqui (Champion).

Var, Hlytris apice nigris. (Calopteron tenue, Gorham ined. Tab. IV. fig. 5.)

Hab. Nicaraeva, Chontales (Belt, Janson).

A great number of this species were met with by Mr. Champion in Chiriqui. The cells

are often dark with pale coste, especially towards the apical half of the elytra; and in

one specimen from El Tumbador this fuscous black colour extends over the apical two-

thirds, thus connecting the type form with the variety with a black apical third.

Calopteron terminale (p. 14).

To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

Three specimens, two male and one female, maintain the characters given by me for

this species; the sinuation of the sides of the thorax is similar to that of C. rufulum.

It appears rare, and is easily overlooked among C. lineare, &c.

One male specimen from Chontales, taken by Belt, has the apical third of the elytra

infuscate. A typical female appears to have been taken at the same time.

20 (a). Calopteron socium.

Calopteron socium, Kirsch, Berl. Zeit. 1865, p. 59°.

Hab. GuatEMALA, Cerro Zunil, San Isidro, El Reposo, Purula, El Tumbador, Zapote,

Teleman (Champion); Nicaragua, Chontales (Janson); Panama, Bugaba, David, La

Caldera, Volcan de Chiriqui (Champion).—Sourn America ; CoLomBIA, Bogota 1,

A species easily to be recognized by its thorax being carinate in front, and channelled

behind, much as in Plateros; but the elytra have only four coste, and the intervals with

large squarish cells. ‘The specimens met with by Mr. Champion in Chiriqui have the

legs, for the most part, almest wholly yellow; it varies, however, in this respect—they

are sometimes almost black with only their bases yellow, as in the specimens from

Guatemala. The head, thorax, elytra, scutellum, two or three apical joints of the

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 2, August 1884. 2H

234 SUPPLEMENT.

antenne, and breast are yellow. The variety with pale legs was met with in

profusion by Mr. Champion in Chiriqui.

Calopteron ichnoides (p. 15).

To the localities given, add:—Panama, Bugaba (Champion).

Calopteron mimicum (p. 15).

To the localities given, add :—Panama, Bugaba, Volcan de Chiriqui (Champion).

Var. Hlytris totis nigris.

Hab. Mexico, Oaxaca, Yolos (coll. Sallé).

22 (a). Calopteron simulator. (Tab. XI. fig. 4, 3.)

Nigrum, parum nitidum, gracile; elytris pone medium leviter ampliatis, tricostatis; prothoracis marginibus

elytrorumque limbo laterali ante apicem desinente, tenuiter flavis; prothorace carinato, margine antico

paullulum elevato; antennis articulis linearibus, tertio ad decimum longe flabellato pectinatis. Long. 5-8

millim. ¢.

Hab. GuareMata, Purula (Champion); Panama, Volcan de Chiriqui (Champion).

An elegant little species, very closely resembling C. mimicum, but more gracefully

built, and often much smaller. The antenne (of the male ?) are differently formed from

those of C. mimicum or ichnoides, the joints not being compressed, but thin, and with

long flabellate branches, from near the middle of each, from the third to the tenth.

The elytra being tricostate separate it at once from either C. mimicum or ichnoides. A

further distinction between this species and C. mimicum is that the margin here is itself

pale to within about a third of the apex; in the latter it is the humerai costa above the

margin [below the shoulder itself ] which is pale. A series of specimens were secured

by Mr. Champion; these vary considerably in size and appear to be all males. A

specimen from the Volcan de Chiriqui is figured.

Calopteron difficile (p. 16).

To the localities given, add:—Panama, Volcan de Chiriqui (Champion).

Calopteron miniatum (p. 16).

To the localities given, add:—Panama, Volcan de Chiriqui (Champion).

Only the specimens (two in number) from Caché, referred to by me, really belong to

it; the one from Rio Sucio is to be referred to C. decipiens, which exactly resembles it

in size and colour, but has only three coste. Mr. Champion found both sexes of C.

miniatum in Chiriqui.

26 (a). Calopteron rubricolle. (Tab. IV. fig. 4, 2.)

Elongatum, nigro-fuscum ; prothorace miniato, antice carinato, carina postice minute divisa, basi medio minute

MALACODERMATA. 235

excisa, coleopterorum latitudine, lateribus antice fortiter angustatis valde reflexis ; elytris tricostatis,

costis basi flavescentibus, intervallis leviter obsolete reticulatis, tertio per lineam vix diviso. Antennis

compressis, vix serratis, Long. 13 millim. 9°.

Hab. Mexico (Sallé, coll. Sturm), Mexico city (Hoge).

This species, though belonging to the same section of the genus as C. difficile and

about equal in size to the largest females of that species, differs in the structure of the

thorax, which is larger and wider, and the carina, though divided, is not open to the

base, but unites again at the point where the excision of the base meets it. The

reticulation of the intervals is similar to that of C. difficile or C. miniatum, viz., very

fine, irregular, and obsolete. Only two specimens have yet been found by me among

the large numbers of Caloptera I have seen, and they are both females. The one from

Sallé’s collection is figured.

28. Calopteron notatulum. (Tab. XI. fig. 5.)

Nigrum ; prothoracis lateribus elytrisque dimidio basali lete aurantiaceis, his postice paullulum ampliatis,

tricostatis, plaga scutellari nigra; antennis corporis fere longitudine, serratis, articulo apicali flavo. Long.

82-9 millim.

Hab. Guatremaua, Pantaleon, San Isidro (Champion); Panama, Bugaba, Volcan de

Chiriqui (Champion)

Not differing very strongly from C. tricostatwm, but the clear yellow apical joint of

the antenne, in addition to the well-marked scutellar patch, are, I think, indications of

a distinct species; the thoracic carina is very finely divided on its summit for the

basal half, and the base is finely notched. It is also very closely allied to the following

species [C. decipiens], from which it differs, however, in colour. The specimen figured

is one from Bugaba. About a dozen examples were met with. That from Pantaleon

has the scutellar patch larger and widened behind.

29. Calopteron decipiens. (Tab. XI. fig. 7.)

Nigrum ; prothoracis lateribus elytrisque miniatis, his tricostatis, pone medium paullo ampliatis, sutura basi

nigricante, intervallis sat distincte irregulariter areolatis, Long. 8-11 millim. ¢ 9.

Hab. Costa Rica, Rio Sucio (Rogers); Panama, Volcan de Chiriqui (Champion).

This insect precisely resembles C. miniatum in size and colour; it is of course

immediately distinguished if the three coste are noticed, the third interval being quite

undivided longitudinally. It is also more expanded behind the middle, the thoracic

carina is more finely divided near the base, and the transverse reticulation of the elytra

is much more distinct. A large series of this species were taken by Mr. Champion. The

single specimen from Costa Rica is a female, and was formerly confounded by me with

C. miniatum.

2H2

236 SUPPLEMENT. |

30. Calopteron imitator. (Tab. XI. fig. 6.)

Nigrum; prothoracis lateribus strigaque humerali flavo-testaceis; thoracis carina postice tenuiter divisa ;

elytris obsoletius reticulatis, quadricostatis ; antennis corporis longitudine. Long. 6-9 millim. ¢ 9.

Hab. Guatemata, Lanquin, Zapote, Duefias, Cerro Zunil, Cahabon, Panima, San

Juan in Vera Paz (Champion); Panama, Bugaba, Volcan de Chiriqui (Champion).

When the section to which this species belongs is recognized its separation is easy,

the division of the thoracic carina being evident enough in most specimens ; otherwise

it may be confounded with C. mimicum, and its allies. The antenne are long and

compressed, and but little serrate in either sex. A pair were found by me still united

after being mounted on card, the male being much smaller and concealed under the wings

of the female. The front margin as well as the sides of the thorax is often yellow.

The elytra have sometimes only the humeral costa, at others a wide stripe embracing

the margin, yellow. A Bugaba specimen is figured.

31. Calopteron (2) debile.

Depressum, nigro-fuscum ; prothorace subquadrato antice breviter carinato, carina in medio per fossulam ad basin

divisa, disco utrinque infuscato ; elytris sericeo-pubescentibus, ad basin et marginem flavescentibus, lineis

quatuor elevatioribus intervallis regulariter quadrato-reticulatis, pedibus basi testaceis. Long. 5 millim.

Hab. Panama, Matachin (Dr. O. Thieme, O. Schunke), Volcan de Chiriqui (Champion).

At first sight this little insect would be taken fora Plateros, especially as the thorax

is impressed with a long lanceolate fossa with a very short carina at the apex; but on

studying it we find there are only five rows of cells on the elytra; the antenne are

compressed ; the fossa is not impressed on a flattish disc, as in Plateros, but its sides

are the divided carina, and reunite at the base. ‘Two or three joints at the base of the

antenne are yellow; the suture, base of the elytra, and margin for some distance below

the middle are of a bright straw-yellow, clothed with scales and short hairs. A series

of this species were forwarded me by M. R. Oberthiir for determination.

This species, and some others, can only be retained in the genus Calopteron till

appropriate divisions can be made for all the species having divided thoracic carinzee—

that is to say, those in Section B of this work. The thorax is not, however, similarly

channelled or fossulate in all these species, and other characters will no doubt enter into

the analysis.

32. Calopteron plateroides.

Nigrum, depressum, parallelum ; prothoracis lateribus et margino frontali, elytrorumque dimidio basali (sutura

pratermissa) lete ferrugineis; anteanis serratis, articulis duobus apicalibus flavis; elytris seriebus quinque

concinne areolatis, interstitiis equaliter elevatis; prothoracis disco canalicula haud antice vel postice

aperto, diviso. Long. 5 millim.

MALACODERMATA. 237

Hab. Guatemaua, Cubilguitz (Champion); Panama, Bugaba (Champion).

Allied to C. debdile, and differing from it chiefly in having the yellow shoulder-stripe

of a richer rusty yellow and more distinctly defined, the black portions of the elytra more

intense, and the two apical joints of the antenne yellow. ‘The femora at their bases,

and the trochanters, are yellow.

This insect almost exactly simulates Plateros bugabensis in size and pattern; it may,

however, be superficially known by its brighter colour.

PLATEROS (p. 19).

Since my description of the species of this genus in the first part of this volume, a

very large number of specimens belonging to it have been collected by Mr. Champion.

I have also extended my acquaintance with the genus, which I now regard as the

existing representative of the prototype of the family. Dr. Leconte has given a

summary of the species, he regards as referable to it, found in the United States of

North America (Trans. Amer. Ent. Soc. ix. March 1881). According to my own view,

humeralis, Fabr., and érilineatus, Melsh., retained by him in the genus Eros, Newm.,

should be referred to Plateros. Dr. Leconte recognizes the difficulty of defining the

species, which, he very aptly remarks, are plastic. The remark, however, might well be

extended to other genera, as, for instance, to Calopteron. The difficulties, however, are

not greater or less than we meet with in English Coleoptera, for instance among the

Carabide.

The males in this genus seem rarer than the females; I have now been able to study

the males of many of the species from specimens collected by Mr. Champion on the Volcan

de Chiriqui. The apical segments of the abdomen are formed as usual in this family;

the seventh is cut out in a small rounded emargination, while the eighth is elongate

and embraced by the dorsal pygidial plate, which is visible on the ventral side, on each

side of the apical. ‘The antennee differ scarcely at all from those of the female; they

are perhaps a little longer and a little more acutely serrate. The head is more pro-

minent, and the eyes sometimes larger. The prothorax is narrower, and with more

acutely produced hind angles. ‘The colour is generally very constant; the species are

differentiated by the greater or less expansion of the elytra, the size and degree of

serration of the antenne, &c. I have not found it necessary to alter my views upon the

species, but it will be as well to give some further characters in a tabular form for

the separation of the most difficult species.

1 (a). Plateros hogeanus.

Niger; prothoracis lateribus elytrisque ochraceis, his sutura (apice pretermisso) nigrescente. Long. 12 millim.

Hab. Mexico, Cordova (Hége).

238 SUPPLEMENT.

Of the same shape and with similar characters to P. seminiger, excepting that the

elytra are of an ochraceous yellow instead of brick-red and have no black at their apex.

I only hesitate to consider it as a variety of that species, because differences of colour

of this kind are usually specific characters in this family, and I have yet only been able

to examine a single female specimen.

Plateros bourgeoisi (p. 19).

To the localities given, add :—MeExico, Oaxaca (Hége).

Two specimens with the humeral stripe rather wider than in the type.

Plateros evanidus (p. 20).

Var. Pedibus testaceis, tibiis tarsisque infuscatis.

Hab. Guatemata, Purula, Chacoj, Teleman, Mirandilla (Champion); Panama, Volean

de Chiriqui, Bugaba (Champion).

Plateros apicalis (p. 20). (Tab. XI. fig. 9, 2.)

To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

The original description refers to the female; a large number of specimens of a

Plateros which are, I believe, all referable to the same species have since been found

by Mr. Champion, and present a peculiarity I have not observed before in this genus, viz.,

that while the females agree with the type in having the apical joints of the antenne

pale, those of the males are (as far as I have yet ascertained) wholly black.

The males are usually smaller than the females, four and a half to five millimetres

in length; and the proportion of black on the elytra very variable—sometimes more

than half the suture, sometimes only the apex. The ground-colour of the elytra is

brown or sordid yellow; it is never brightly coloured. ‘The thorax has a deep puncti-

form sulcus near the base—it often varies in length even in the same sex; and, unless I

am deceived, the eyes are prominent, and the front of the head disclosed in some female

specimens as much as in the males. In one female the antenne are black at the apex.

This species, and P. luridus, were identified by me with specimens in my own col-

lection so named by M. Bourgeois, but of which I believe no descriptions have been

published. They are more parallel and longer species than their allies. P. evanidus

has the body nearly always black. In P. apicalis the middle of the sterna between

the coxe is sometimes, the scutellum rarely, yellow.

Great numbers were taken by Mr. Champion.

Plateros luridus (p. 20).

To the localities given, add :—GuaremaLa, Purula, Chacoj (Champion); Panama,

Bugaba (Champion).

MALACODERMATA. 239

Scutellum generally yellow, as well as the greater part of the breast, often also the

femora. It is a longer species than P. rubricatus, and in addition has the apical joint

of the antenne yellow.

Taken in profusion at Bugaba.

Plateros lateritius (p. 21).

To the localities given, add:—Panama, Volcan de Chiriqui (Champion).

Distinguished, among other characters, by the larger size, more widened elytra, wholly

black body and appendages, and black vitta on the thorax. There is a specimen of,

what I consider, a variety, taken by Mr. Champion in Chiriqui, which has the alternate

coste more raised, the suture black, and the thoracic vitta divided. Dr. Leconte

(Trans. Am. Ent. Soc. 1881, p. 26) confirms my conjecture that this insect is not the

same as Lycus sanguinipennis, Say, which M. Bourgeois seemed to have considered to

be a Plateros, but which is a rostrate species belonging apparently to Lycostomus. It

would, however, be of little use to attempt to refer any particular species of Plateros

to M. Bourgeois’s notice under that name; several closely allied species were contained

in M. Sallé’s collection.

8 (a). Plateros forreranus. (Tab. XI. fig. 8.)

Flavo-testaceus ; antennis, vitta prothoracica, scutello elytrorum fascia subbasillari ad suturam latiori, trienteque

apical, femorum apice, tibiis tarsisque nigris; abdomine picescente, basi in medio testaceo; antennis

fortiter serratis. Long. 8-11 millim. ¢ Q.

Hab. Mexico, Presidio, Ventanas (Morrer); Guatemata, San Isidro (Champion).

Antenne acutely serrate, not differing perceptibly in the sexes. Hlytra moderately

widened towards their apices. Heada little infuscate, antenne black. ‘Thorax with an

indistinct carina in front, especially in the female, the central vitta not always prolonged

to the front. Elytra ferruginous, paler in the middle, with a broad fascia touching

the scutellum near the base, and the apical third smoky black. Body beneath, except

the abdomen, testaceous.

This is one of the most prettily marked species of the genus Plateros I have seen;

it is like P. bogotensis, and distinguished from it by the much wider central yellow

band across the elytra, and by the yellow body. ‘The specimen figured is from Presidio.

Plateros terminalis (p. 22).

To the localities given, add:—Panama, Volcan de Chiriqui, Bugaba (Champion).

Near P. (Eros) canaliculatus, Say ; but with the antenne longer and wider, the apical

joint yellow or fuscous. The thorax has no carina in front, but is rather irregularly

rugose, the ruge in the middle being longitudinal; the channel is open behind, the

base being thus emarginate in the centre.

240 SUPPLEMENT.

11 (4). Plateros infernus.

Ater; prothorace subnitido, lateribus late rufis angulis posticis acutis, disco ad marginem anticam subrugose

punctato haud carinato, basi obsolete canaliculato, in medio parum elevato, haud emarginato ; elytris

equaliter punctato-striatis, versus apicem leviter ampliatis; antennis sat longis, articulis quarto ad

undecimum duplo fere longis quam latis. Long. 63-72 millim. ¢ Q.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

The species of this group are extremely difficult to separate, and unless the structure

of the disc of the prothorax is studied together with the proportion of the joints of the

antenne, as well as the general facies, it is almost a hopeless task. In the present

species the thorax is short and small in the male, wider and with more produced hind

angles in the female. The absence of a carina in front of the thorax, the longer

antenne, the duller elytra (which are more widened behind than in most of its allies)

will distinguish it from P. canaliculatus, Say, which it resembles in its black elytra, with

scarcely any trace of a shoulder-stripe. From P. terminalis, to which it is closely allied

in the thoracic sculpture, the more expanded elytra and black apical joint of the antenne

will most readily separate it. A good many specimens were taken by Mr. Champion.

11 (s). Plateros erebus.

Ater, subnitidus ; prothorace nitido profunde sulcato, lateribus angustius rufis, angulis posticis subrectis ; elytris

subparallelis, versus apicem vix expansis, interstitiis altcrnis elevatioribus ; humero parum elevato tenuiter

testaceo; antennarum articulis intermedio latiusculis, subquadratis. Long. 6-67 millim.

Hab. Gvatemara, Cerro Zunil (Champion); PayamMa, Bugaba (Champion).

Chiefly separated from P. terminalis on account of the black antenne. It is often

as small as P. striatus; the quadrate thorax, with a deep straight sulcus extending

frequently to near the front from the base, will best distinguish it. Taken abundantly

at Bugaba, Chiriqui.

Plateros striatus (p. 22).

Var. To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

Taken abundantly at an altitude of 83500 to 4000 feet. The thorax has acute hind

angles, narrows towards the front, and has a short basal fovea with a transverse ridge

on each side.

Plateros flavicollis (p. 23).

To the localities given, add :—Panama, Volcan de Chiriqui (Champion).

Occurs with P. striatus, but much less commonly.

14 (a). Plateros carbonarius.

Aterrimus; prothorace quam elytra angustiore, subnitido tenuiter piceo-marginato, disco inequaliter obsolete

canaliculato, antice subrugoso punctato ; antennis leviter serratis, articulo secundo parvo, tertio brevi,

MALACODERMATA. 241

quarto tribus basalibus subaquali. Elytris longis, costis quatuor elevatis, intervallis confluenter subrugose.

biseriatim punctatis. Long. 8-84 millim.

Hab. GUATEMALA, Sinanja valley (Champion).

Distinguished among its allies by the nearly black thorax and by the length of the

elytra. The antenne are black, with the third joint shorter than in P. terminalis.

The thorax has no carina; the sides of the channel are obsoletely quadrituberculate.

Three specimens have occurred.

14 (s). Plateros fusiformis.

Niger, subnitidus ; prothorace flavo, disco nigrescente ; antennis latiusculis, vix serratis ; elytris antice posticeque

angustatis, interstitiis alternis distincte elevatis, intervallis biseriatim irregulariter cellulatis. Long. 7-8

millim. ¢ 9.

Var. Thorace toto flavo.

Hab. GuatemMaLa, San Gerénimo, Purula (Champion); Panama, Volcan de Chiriqui

(Champion).

The distinguishing character of this species is the manner in which. its elytra. widen

gradually from the shoulders to the middle, and from there narrow to the apex. This

combined with the sculpture, which looks as though the elytra were sulcate, gives it a

very different appearance from any other species. Of five specimens from. Chiriqui

two are of the variety, the other three having the disc of the thorax black. The

sulcus is roughly formed, more or less elongate, while hardly any trace of a carina can

be seen. The examples from Purula have darker thoraces, the lateral limb only being

pale ; they are also smaller.

15 (a). Plateros bugabensis.

Fumeo-niger, subopacus ; prothorace nitidulo lateribus testaceis ; elytris plaga humerali, plus minusve producta,

brunnea. Long. 5-53 millim. ¢ 9.

Hab. Panama, Bugaba, David (Champion).

Closely allied to P. apicalis; the antenne are concolorous in both sexes and less

pubescent ; the thorax has scarcely any trace of a carina, but a wide not well defined

basal channel, and the elytra have a wide shoulder stripe, with a broadly black suture,

and more of the apical half black than in P. apicalis. The females of this, and of some

other species, may be known by the thorax having a longer and deeper central channel,

with the hind angles less produced.

A large number of this species were found at Bugaba.

Plateros ochraceus (p. 23).

To the localities given, add:—Nicaracua, Chontales (Belt); Panama, Volean de

Chiriqui, Bugaba (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, October 1884. 2L

242 SUPPLEMENT.

Taken abundantly on the Volcano of Chiriqui at the altitude of 2500 to 4000 feet,

sparingly at Bugaba. ‘This species and P. rubricatus should be placed following

P. luridus. It is a most difficult species to define, and more variable than its allies.

It will, I think, be recognized by its red-ochre colour, which is sometimes nearly

vermilion shading into yellow, often in the same specimen ; also by its size, which never

reaches that of the larger specimens of P. evanidus. The large series now sent enables

me to amend my original description, which was taken from specimens from Cubilguitz

alone. The amount of black on the disc of the thorax is very variable, from a broad

vitta, the channel itself being black, to a mere speck at the end of the channel. The

suture is black in many specimens from Chiriqui, but usually only for a short distance

below the scutellum, and the latter is black in most of these specimens. Two specimens,

taken at an altitude of 4000 to 6000 feet, have the apex of the elytra as well as the

suture black. This is a very puzzling form, but I cannot separate these individuals

from others from the same altitude with only the suture black.

Plateros rubricatus (p. 24).

To the localities given, add :—Panama, Bugaba, David (Champion).

A good series of this species were met with ; it occurs at lower elevations than its

near allies, P. luridus and P. evanidus. It is a broader species than either. ‘The

males have the antenne longer than the females, but otherwise there is little difference

between them excepting in the terminal segments of the abdomen, which are as usual

in the whole family.

A variety occurs in which the elytra are obscurely marked with fuscous streaks, the

first of which is near the suture.

Plateros mexicanus (p. 24).

The males are much narrower than the females and more parallel. Three other

specimens from Sallé’s collection are now referred by me to this species.

Plateros patiens (p. 25).

To the locality given, add :—GuateMaLA, Coatepeque, El Reposo (Champion).

Three more specimens of this species have occurred, and these tend to confirm my

belief in its specific distinctness. The type described is a female: the two specimens

from El Reposo are, I consider, males of the same species; they are smaller, and their

thoraces are marked with black along the central channel; in one the scutellum is

yellow, in the other black, as it is in the specimen from Coatepeque; otherwise they

exhibit no important difference.

MALACODERMATA. 243

Plateros stramineus (p. 25).

To the localities given, add:—Guatemata, Cerro Zunil, San Isidro, Zapote (Champion);

Panama, Volcan de Chiriqui, Bugaba, David (Champion).

Several specimens have been found.. The males have remarkably long antenne

reaching to the end of the body, and large prominent eyes; it is an aberrant species.

The apical joints of the antenne are pale in some specimens, and most of those recently

found are larger than those I had seen before, being six and a half millimetres long.

TEROPLAS, gen. nov. (to follow Plateros, p. 25).

Platerote affinis; elytra simili modo decemstriata, et interstitiis alternis leviter elevatioribus. Oculi maris

globosi, in utroque sexu sat prominuli. Antenne, maris valde ramose, flabellis tenuibus simplicibus, quam .

articuli proprii longioribus, e basi ortis; femine corporis fere longitudine, acute serrate. Prothorax

margine frontali sinuata, fronte prominula, disco prope basin fossula subpunctiformi, margine reflexo,

integro.

A new genus must be granted for an insect which, resembling Plateros in many of

its characters, has nevertheless pectinate antenne in the male. ‘The distinction between

this and some of Mr. Waterhouse’s genera, as, for instance, Ditoneces, is not easily

expressed in a short description. It must suffice here to say that the Eastern genera

generally are well differentiated, and the one named has the branches of its antenne

pubescent, and arising at a very acute angle from the joints. There is no species of

Plateros known to me at present showing any tendency to such disparity between the

sexes as we see here.

1. Teroplas fusculus.

Calodadon fusculum, Gorham, anted p. 29.

Niger, subopacus; prothoracis lateribus et margine antico, elytrorumque callo humerali rufis. Long. 63-8

millim. ¢ 9.

Mas. Antennis gracilibus, articulis tertio ad undecimum ramum tenuem e basi emittentibus.

Femina, Antennis quam corpus paullo brevioribus, articulis acute angulariter serratis.

Hab. Nicaragua, Chontales (Belt); Panama, Bugaba, Volcan de Chiriqui (Champion).

Exactly resembling Plateros terminalis and P. erebus in colour, this insect is at once

to be recognized by the ramose antenne of the male, while the female sex will be known

by the long serrate antenne suggestive of an alliance to P. stramineus. The males, four

in number, were found all at Bugaba. The description of Calodadon fusculum at p. 29

of this volume was made from a unique male specimen in poor preservation and not

fully coloured. I am not certain still whether the supposed females actually pertain to

the species.

244 SUPPLEMENT.

CALLEROS (p. 25).

Species which I find may be referred to this genus, or section of Plateros, have

occurred now of various colours from black to yellow. The best distinguishing character

(in addition to general facies) that I can offer is the simple structure of the antenne,

which have elongate joints, with their inner apical angles scarcely acute.

5. Calleros aterrimus.

Ater, subnitidus; elytris parallelis; prothorace brevi antice paullo angustato, disco ineequali basi obsoletius

fossulato. Long. 6-63 millim.

Hab. Panama, Volcan de Chiriqui, 2000 to 6000 feet (Champion).

In the Central-American series only one species is known to me as yet which is

wholly black, or very nearly so, viz. P. carbonarius; from that the present species is at

once distinguished by its evenly striate elytra and long thin linear antenne, which have

the joints from the fourth onwards three times as long as wide and a little pubescent.

C. aterrimus, however, almost exactly resembles the Japanese Plateros coracinus, the

only apparent differences being that the latter has serrate antenne, and a duller, more

quadrilateral thorax, with the fossa more clearly defined and open behind.

Many specimens of this species were met with, chiefly at the higher altitude.

6. Calleros filiformis.

Elongatus, parallelus, ater; capite, prothorace elytrisque ochraceis, scutello cum prothoracis disco interdum

infuscato. Long. 6 millim.

Hab. Guaremata, San Geronimo, Volcan de Atitlan (Champion); Panama, Volcan de

Chiriqui (Champion).

Head ochreous, infuscate in darker examples; antenne about two thirds of the length

of the body, the third joint shorter proportionally than in C. a¢errimus, but the same as

in C. sinanje ; the following joints elongate and equal in length. ‘Thorax narrow with

parallel sides, and rounded in front ; the disc faintly carinate in front, with an elongate

sulcus behind sometimes deeper in the middle and before the base, and with its sides

tumid and indistinctly fossulate on each side. Elytra very narrow and finely striate,

the alternate coste a little raised. Three examples are all I have seen as yet of this

species.

CALODADON (p. 27). .[Catoczapon, Tab. II. fig. 20.]

The former spelling was overlooked in the proof; that on the Plate expresses the

intended form of the name.

Calocladon testaceum (p. 28).

To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

MALACODERMATA. 245

Several specimens of both sexes were found; all, however, have the thorax with a

more or less distinct black vitta, sometimes the base of the suture, and in one case two

linear dots before the middle of the elytra, blackish. The Guatemalan specimens from

San Gerdnimo and Zapote, alluded to under this species, do not pertain to it, but to

Plateros stramineus. It as, therefore, as yet, only occurred in Nicaragua and

in the State of Panama.

1 (4). Calocladon chiriquense.

Subparallelum, nigrum; prothorace elytrisque sordide flavis, his in medio paululum contractis, costis duabus

elevatioribus, sutura ad basin nigricante, illo vitta mediana nec apicem nec basin attingente nigra; pedibus

basi, antennarumque apice interdum flavescentibus. Long. 6-63 millim. dg Q.

Mas. Antennis flabellato-ramosis, ramis quam articuli plus duplo longioribus; oculis subglobosis valde

prominulis.

Femina. Antennis compressis, acute serratis.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

Calocladon fusculum (p. 29).

This must be removed from the genus Calocladon, and is identical with the species

which forms the type of a new genus Zeroplas. The structure of the thorax is much

more nearly that of Plateros, but the eyes are as in Calocladon. The antenne are

ramose, but the branches are fine, not flabellate as in this genus. The description

given is correct, but the unique type was unsatisfactory, being apparently immature. I

have redescribed it under Teroplas from another example.

2, (a). Calocladon histrionicum.

Niger; prothoracis lateribus humerisque flavis, prothorace antice carinato, in medio concinne ac distincte

canaliculato, basi in medio prominulo haud alte elevato. Long. 7 millim. ¢ Q.

Mas. Oculis sat prominulis, antennis flabellato-ramosis, ramis quam articuli triplo fere longioribus.

Femina. Antennis latis acute serratis.

Hab. Guaremata, Cerro Zunil, El Tumbador, Purula (Champion).

Var. Plaga humerali longius provecta.

Hab. Mexico, Cordova, Playa Vicente, Tuxtla (Sallé col/.); GuatemaLa, Sinanja,

Sabo, Purula (Champion).

This insect is nearly allied to C. oculatwm, and females from Cordova seem to exhibit

no other difference than that of colour, the form of the thorax and its channel being

precisely similar. It is, however, the shoulders only of the elytra which are yellow, and

-in these specimens the species afford another almost exact resemblance to Calopteron

mimicum, to which we have now quite a group of similarly coloured species. But the

males are narrower than those of C. oculatwm, the antennz have the apical joint always

black, and in the typical specimens from Cerro Zunil the elytra are nearly wholly

black.

246 SUPPLEMENT.

Calocladon pectinicorne (p. 29).

To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

Met with in profusion by Mr. Champion at Bugaba; the specimens are mostly of a

richer brick-red than in the type.

1 (zs). Calocladon rubidum. (Tab. XI. figg. 136,142.)

Nigrum ; prothoracis lateribus elytrisque rufo-flavis, his sutura basi tenuiter nigra, thoracis disco antice carinato

pone medium tenuissime canaliculato, basi bisinuato in medio prominulo. Long. 5-7 millim. ¢ 9.

Mas. Antennis flabellato-ramosis, ramis quam articuli duplo longioribus ; oculis mediocris.

Femina. Antennis latiusculis, serratis.

Hab. Panama, Volcan de Chiriqui (Champion).

Var. Elytris apice nigris.

Hab. Panama, Volcan de Chiriqui (Champion).

Not unlike C. chiriquense, but varying more in size, and differing in colour, the elytra

being of a fine brick-red, almost carmine tint, shading off into yellow at the base. It is

especially, however, by the fineness of the channel of the thorax that this species is

distinguished from its nearest allies. In some specimens the carina (which is always

distinct in front) is scarcely divided, except in the middle. The rows of cells on the

elytra are somewhat indistinct, owing to scales with which they are clothed. The

second and fourth costules are elevated as in other species of this genus. This species

appears to frequent somewhat higher altitudes than C. chariquense, at least I have not

seen specimens from Bugaba. A small series were secured by Mr. Champion at elevations

of from 3000 to 4000 feet. The variety with black tips to the elytra occurred in company

with the type; both sexes were found.

Calocladon oculatum (p. 28).

To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

A small series of about a dozen specimens of this were met with on the Volcan de

Chiriqui, in company with the following species, which it so closely resembles that I

did not at first separate them; it has, however, the thorax differently formed, being, like

that of C. testaceum, narrowed towards the front, and with a distinct open channel ; the

eyes are much more globose and prominent in the male, and the antenne have the

apical joint black.

2 (s). Calocladon plumosum.

Nigrum, subparallelum ; prothoracis lateribus, elytrorumque plus quam dimidio basali flavis, his sutura basi

nigra; antennarum articulo ultimo maris, interdum duobus apicalibus femine, flavis; prothorace subquadrato

angulis anticis obtusiusculis, disco carinato, carina pone medium tenuissime divisa. Long. 8 millim. ¢ 2.

Mas. Antennis flabellato-ramosis, oculis magnis haud multo exsertis.

Femina, Antennis serratis.

MALACODERMATA.. 247

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

Found in considerable numbers by Mr. Champion in company with C. oculatum, from

which it could not have been discriminated when alive. It is apparently a commoner

species.

5. Calocladon ephippium. (Tab. XI. fig. 10¢,11¢.)

C. oculato quoad formam congruens, nigrum; prothoracis lateribus elytrisque flavo-testaceis, his macula magna

communi subtriangulari trienteque apicali nigris. Long. 8-9 millim. ¢ Q.,

Hab. Mexico, Cordova, Oaxaca (Hége); GuateMaLa, El Reposo, San Isidro ( Champion) ;

Panama, Bugaba (Champion).

The sexual characters, form of the thorax, and its carina and channel, agree with those

of C. oculatum. The elytra have the alternate interstices equally raised. The black

patch common to the elytra varies in size and a little in form. It usually widens out

from the scutellum till it reaches the submarginal interstice, and it varies in the extent

to which it is produced backwards or along the suture. A good series were obtained.

The figures are from Bugaba specimens.

LINOPTES, gen. nov. (to follow Calocladon, p. 29).

Antenne utriusque sexus serrate, valid, compress, corpore breviores. Prothorax planiusculus tenuissime

carinatus, carina postice duplici, vix divisa; basi valde bisinuata medio sublobato emarginata. Llytra

cellulis seriebus decem instructis.

This new genus differs from Calocladon in having the antenne of the male only

serrate, and also in the shape and structure of the thorax and its carina, which is so

very finely divided behind the middle as rather to give the idea of its being double in

that part, the sides meeting again at the base. ‘The sexual characters of the abdomen

are as usual; the seventh segment of the male is excised, showing a narrow conical

eighth.

I have considered whether this could be referred to Erichson’s genus Emplectus. I

have not seen the typical species of that genus, viz. H. bimaculatus, a Peruvian insect.

M. Bourgeois considers species which are very closely allied to the genus Calocladon of

the present work to be referable to it; while Mr. C. O. Waterhouse refers to it

Calopteron socium and allied species. I incline to the belief that an examination of the

type will prove it to be different from any of these genera.

1. Linoptes imbrex. (Tab. XI. fig. 12 ¢.)

Depressus, postice paululum ampliatus, testaceus; capite, antennis, palpis, pedibus abdomineque plus minusve’

infuscatis; prothorax planiusculus antice angustatus, margine omni concinne reflexo, nitidulo, tenuiter

carinato, carina pone medium tenuissime diviso, basi bisinuata angulis posticis acutis; elytris interstitiis

alternis elevatioribus. Long. 11 millim. ¢ 9.

Hab. Nicaracua, Chontales (Belt, ¢ ); Panama, Bugaba (Champion, 3 @ ).

248 SUPPLEMENT.

The specimen figured is the female one from Bugaba. Head with the eyes small in

both sexes, black or pitchy ; mouth, basal joint of antenne, base of the palpi, and sterna

yellow, the second joint so short as not to be easily seen. The abdomen in the two

male specimens is nearly all yellow, and the legs are yellow, but mottled and clouded

with fuscous. The abdomen in the female is fuscous. ‘The scutellum is hardly emar-

ginate at its tip. Only three specimens have come under my notice at present. This

insect would be very readily confounded with Calocladon testacewm, unless the antenne

of the male and the very narrow divison of the carina were noticed.

CERATOPRION, gen. nov. (to follow Linoptes).

Caput minutum. Antenne corporis longitudine, late, acute fortiter serrate, 11-articulate, articulo secundo

minuto, tertio obconico, parvo ; sequentibus 4° ad decimum interne angulariter ampliatis, singulis quam

caput majoribus; apicalilanceolato. Prothorax perparvulus antice fortius angustatus, marginibus reflexis,

disco carinato, angulis posticis acutis. Elytris reticulatis, areolarum seriebus quinque.

The only genus to which this curious little species can be compared is the genus

Atelius of Mr. Waterhouse, from Ceylon. The shape of the thorax is, however, more

nearly that of his genus Libnetis. What the proper place of these abnormal genera

should be, is still quite an open question. I place it here simply from not having at

present come to a conclusion on the matter, but I think it will fall into the same group

with Calopteron, many of the large species of which have the head and thorax very

much reduced.

1. Ceratoprion serricorne.

Nigro-fuscum ; prothorace antice fortiter angustato, lateribus perparum sinuatis, carinato, squamulis fuscis

dilutioribus vestito; antennis fuscis, articulo secundo minuto testaceo, apicali flavescente. Long. vix

5 millim.

Hab. Panama, Bugaba (Champion).

Entirely fuscous-black, with the exception that the thorax is of a dingy fuscous yellow

colour; and that the apical joint of the antenne, as well as the very small second joint,

is yellow. The elytra appear to be soft and thin, and are much twisted in drying.

They are, however, “reticulate,” as in Calopteron mimicum and the allied species, and

have four raised coste. Only two specimens have been found at present.

LYCINELLA, gen nov. (to follow Ceratoprion).

Caput minutum ; antenne quam corpus breviores, validw, compress, pubescentes, fere simplices, 11-articulate,

articulo secundo minuto gre distinguendo, tertio parvo subquadrato, sequentibus quam hoc triplo

longioribus. Prothorax transversus, trapezoideus, disco depresso, margine frontali et marginibus lateribus

late elevatis, planiusculis, antice breviter canaliculato. Elytra subparallela, subrugosa, striis decem haud

distinctis, ad apicem confusis, costis duabus elevatis.

MALACODERMATA. 249

1. Lycinella opaca. (Tab. XI. fig. 15.)

Nigra, opaca ; prothoracis margine laterali et frontali late elevato, sanguineo ; elytris costis duabus una humerali

una discoidali elevatis ad apicem fere provectis, intervallis subrugosis. Long. 4-5 millim.

Hab. Guatemata, San Juan in Vera Paz, Tamahu (Champion) ; Panama, Volcan de

Chiriqui (Champion).

This little species has at first sight apparently ten-jointed antenne, but a very small

second joint really exists. It presents many points of resemblance to the species of the

genus Taphes, which inhabits the Eastern Tropics, especially in the structure and

pubescence of its antenne; but the thorax is quite differently formed. In addition to

the two raised coste mentioned in the diagnosis, this species has the alternate interstice

next the suture a little raised, especially at the base.

Only four specimens have yet been seen by me, the one figured being from

San Juan. |

2. Lycinella parvula. (Tab. XI. fig. 16.)

Nigra, opaca; prothoracis margine laterali sat late, frontali tenuissime rufo, disco antice carinato, carina postice

minute diviso; elytris paullulum ampliatis, opacis, costis humerali et discoidali nisi ad basin vix elevatis.

Long. 4-44 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

I at first thought a separate genus should be made for this insect, as it differs from

the preceding species in many minute details. The carina is divided behind, making a

very small open cell, but this is not always visible. The antenne are shorter, and quite

simple. The elytra appear to be softer and expand more behind, but I now hesitate to

give these differences more than specific rank. One specimen occurred in the hot low

country at Bugaba, and is the one selected for the figure. The others were found

at a higher elevation on the Volcan de Chiriqui.

LAMPROCERA (p. 29).

Lamprocera picta (p. 30).

Var. Elytris basi usque ad medium flavescentibus, interdum macula magna subhumerali nigra. (Tab. XI.

fig. 17.)

Hab. Panama, Volcan de Chiriqui (Champion).

Two specimens, one with a lateral spot near the base of the elytra, the other with

the basal half entirely brownish yellow, were met with. The latter so closely resembles

the species I have identified as L. castelnaui, Kirsch [cf. Trans. Ent. Soc. 1880, p. 4],

that I think possibly that species is the southern form of LZ. picta. My specimens,

which I suppose to be ZL. castelnaui, are from Colombia, and are larger and exhibit

some minor differences of colour and pattern. Mr. Champion informs me that these

insects are sometimes found on the wing in the forests in the daytime.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, October 1884. 2K

250 SUPPLEMENT.

HYAS (p. 30).

Hyas angularis (p. 30). |

Leconte [Synopsis of the Lampyride of the United States, p. 33| has proposed a

genus, Tenaspis, for this species on account of the antenne being simple in both sexes,

and (as he says) the “light organs” being wanting. In the specimens from Guatemala

the abdomen is entirely black, as in my type; in the specimens from Mexico, from

Sallé’s collection, on the other hand, the apical segments are pale, and in one instance

the whole ventral side of the abdomen is yellow, and all these specimens are smaller,

and sometimes have the thorax wholly pale. They may therefore be specifically different,

but the character is not generic. Hyas angularis of the type-form occurs, according to

Leconte, in the United States, in Texas, and Northern Mexico.

Hyas semifusca (p. 31).

To the localities given, add :—GUATEMALA, San Isidro (Champion) ; Panama, Bugaba,

Volcan de Chiriqui (Champion).

Var. Elytris totis ochraceis.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

About a dozen specimens of a small Hyas wholly ochraceous above occurred in

Chiriqui, but they do not differ in any important respect from the dark A. semifusca,

and are of both sexes. Two specimens intermediate in colour of the elytra were also

found, one in the low country at Bugaba, one at the higher altitude.

PHANOLIS (p. 31).

Phenolis ustulatus (p. 32).

To the localities given, add :—Mexico, Almolonga (Hoge), Cordova (flohr) ;

GuatemaLA, Mirandilla (Champion).

Two specimens sent me by Sefior Flohr from Mexico have the disc of the thorax with

a blackish horse-shoe shaped mark, as the single specimen from Almolonga has also,

with the scutellum black.

Phenolis ochraceus (p. 32).

To the localities given, add:—Guarema.a, Cubilguitz, San Juan in Vera Paz;

Panama, Bugaba, Volcan de Chiriqui (Champion).

Mr. Champion remarks that this insect is frequently taken on the wing in dark parts

of the forest in the daytime.

MALACODERMATA. 251

ETHRA (p. 32).

Akthra despecta (p. 32).

To the localities given, add:—Panama, Bugaba, Volcan de Chiriqui (Champion).

All the specimens taken at Bugaba, and on the Volcan de Chiriqui, agree in having

subpectinate antenne, and as far as I can see in the structure of the abdomen.

Specimens from Colombia in my own collection, which have the antenne serrate and

the disc of the thorax infuscate, are doubtfully a distinct species; one example quite

agrees with the Chiriqui species. There remain but two specimens with simply serrate

antennee, viz. those from Cache, Costa Rica, and I now incline to think these are not

properly assigned to the present species. Hence the female is not certainly known.

3. Aithra brunnipennis. (Tab. XI. fig. 19.)

Aithra brunnipennis, Gorh. Trans. Ent. Soc. 1880, p. 13°.

“Nigra, subnitida ; elytris brunneo-flavis, thorace canaliculato, semicirculari.” Long. 10-11 millim. ¢?

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

Head and thorax black, the former slightly impressed between the eyes, mandibles

pitchy ; antenne nearly as long as the body, with their third to tenth joints acutely

produced, so that the produced part is about equal to the joint in length. Thorax

thickly punctured, margin reflexed and somewhat thickened, central channel ill-defined.

Scutellum more shining than the thorax, its apex truncate. Elytra rusty yellow, almost

exactly as in A. despecta. Legs black.

A series of specimens only varying a little in size were taken. I have a species rather

closely allied to this, but with nearly simple antenne, from Ecuador. This species was

found on the wing in the daytime in the dense forest, and sometimes to be seen sitting

on the leaves.

DRILOLAMPADIUS (p. 33).

Drilolampadius stolatus (p. 33).

To the localities given, add :—Mextico, Jalapa (Hoge); Panama, Bugaba, Volcan de

Chiriqui (Champion).

Var. GuaTEMALA, Las Mercedes, San Isidro (Champion).

Mr. Champion met with large numbers of both this and the following species in the

State of Panama, from an examination of which I am able to supply the sexual differences

and further details. In D. stolatus the antenne of the male have the filaments not more

than twice the length of the joints; those of the female are very much shorter, with

rudimentary filaments. In D. scutellaris the males have very long filaments three to

four times the length of a joint; the terminal joint is generally yellow. The colour is

2K 2

252 SUPPLEMENT.

variable in both species, but not exactly in a parallel manner. WD. stolatus is black,

with the side of the thorax and the greater part of the margins of the elytra yellow,

and varies with the basal half of the elytra yellow with a black streak along the suture,

while D. scutellaris (besides being scarcely costate) has the elytra either wholly fuscous

black, or ochraceous yellow. Some examples have the thorax entirely yellow, and in

such the scutellum and sterna, with the coxee and femora, are also yellow.

Drilolampadius scutellaris (p. 33). (Tab. XI. fig. 20.)

To the localities given, add:—Panama, Bugaba, Volcan de Chiriqui (Champion).

This is altogether a larger and more convex species than D. stolatus. The specimen

figured is a male of the variety, with yellow thorax and scutellum, from Volcan de

Chiriqui; of sixty to seventy examples of this species collected in the same locality

about half are of this form, while I have not found one D. stolatus similarly coloured.

Very few females occurred with them. These insects are usually found on the wing

during the early morning or towards evening in humid places in the forest.

MEGALOPHTHALMUS (p. 34).

Megalophthalmus godmani (p. 34).

To the localities given, add:—Panama, Volcan de Chiriqui (Champion).

3. Megalophthalmus costatus.

Megalophthalmus costatus, Casteln. Essai, p. 182.

Megalophthalmus obsoletus, Blanch. Voy. d’Orb. p. 128, t. 7. fig. 7; Gorh. Trans. Ent. Soc. 1880,

p. 97.

fab. Panama, Bugaba, Volcan de Chiriqui (Champion).—Sourn America, Bolivia.

The specimens taken by Mr. Champion are very variable in colour, being either with

the elytra black, with the margin pale in the middle, or yellow with the suture and the

apical quarter black, or the suture only slightly infuscate; they agree, however, in all

having the thorax with the disc black and with yellow sides and front. The specimens

found at Bugaba all agree in having the elytra blackish with the lateral margins pale,

and also in the thorax covering the head, while those from the higher elevation of two

to three thousand feet have shorter thoraces which leave the head exposed as far as the

eyes, and unless this is a sexual difference I think these will prove to be two species.

It is three years since I examined the types of VM. costatus and VW. obsoletus contained

in Guérin-Meneville’s collection, now in the Brussels Museum, but my belief is that the

Bugaba specimens agree with them, and if so the species has an exceedingly wide range.

They were found by Mr. Champion sitting on leaves in forest pathways.

MALACODERMATA. 253

4. Megalophthalmus collaris. (Tab. XI. fig. 24.)

Megalophthalmus collaris, Guérin-Men. Rev. Zool. 1848, p. 181; Gorh. Trans. Ent. Soc. 1880, p. 98.

Hab. Panama, Volcan de Chiriqui (Champion).—Souta AmeErica, Colombia}.

Taken in abundance by Mr. Champion in one spot, but he found it to be very local, by

the side of a little stream in the forest at 4500 feet altitude. It emits a pale green

bright light, and is rather rapid on the wing.

LUCIDOTA (p. 34).

12. Lucidota incompta. (Tab. XI. fig. 22.)

Elongata, nigra, supra ochracea; prothoracis disco nigro-piceo utrinque miniato, scutello nigro-piceo. Long.

14-16 millim. ¢ 9°.

Mas. Antennis longius flabellato-pectinatis, segmentis duobus ultimis pallide flavis.

Femina, Antennis acute serratis, segmento apicali flavo.

Hab. Paxama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

In form, and in the pectination of the antennae, this species is not like any we have

before recorded ; it belongs to a section of the genus common in Brazil and other

parts of South America, of which L. flabellicornis, F., is the type. It differs from any

of that section known to me in its ochraceous or brown colour above. The head is

black and shining, the whole of the body is black with the exception of the tips of the

coxee and bases of the trochanters, the point of insertion of the antenne, the mandibles,

the front margin of the metasternum, and apical segments mentioned, which are all

yellowish. ‘The thorax is yellow, roughly punctured, the centre of the disc pitchy black,

smooth and shining, with a distinct vermilion patch on each side; the basal part of the

black portion is extended transversely a little along but not touching the base. The

centre of the disc is obsoletely impressed, scarcely channelled. ‘The scutellum is pitchy

black and shining. The elytra are generally unicolorous, rarely very faintly infuscate.

A good series of these species was secured by Mr. Champion at a high elevation. Most

of these specimens were captured either on the wing in the daytime in dark places in

the forest, or by beating herbage along the forest margins.

13. Lucidota fuscata.

Oblonga, minus elongata, nigro-fusca, supra sordide testacea; prothorace lateribus pallide flavis, disco indeter-

minate infuscato, obsolete canaliculato, utrinque miniato. Scutello elytrisque infuscatis, his marginibus

dilutioribus, obsolete costatis. Long. 11-12 millim. ¢ @.

Mas. Antennis compressis vix serratis; segmentis quinto et sexto rosaceis; apicalibus vel flavis vel medio

infuscatis.

Femina. Antennis brevioribus.

Hab. Panama, Bugaba (Champion).

This is one of the species which, by its obscure colours and general appearance, so

simulates a variety of other species as to render its discrimination a perplexing matter

unless its generic characters are grasped. ‘Thus it has a general and very close likeness

254 SUPPLEMENT.

to several Photini, perhaps to P. cinctellus more than any other, also to some of the

Photurides such as Photuris lucidicollis. Among the Lucidote its general appearance is

that of LZ. osculatii. The following characters will, I think, distinguish it from any Luci-

dota yet described. The antennz are simply compressed, very slightly serrate in the male

only ; they are entirely fuscous-black. The rosy-red colour of the fifth and sixth ventral

plates is very conspicuous, and the fifth has two whitish raised spots; this rosy colour

is also very conspicuous in the prosternum and internal structures of the prothorax,

and is of course the source of the same vivid tint round the fuscous disc of the

pronotum.

A very large number were taken by Mr. Champion in the forests of the “tierra caliente”

at Bugaba, where it was very common in the rainy season, and often to be seen sitting

on leaves in the daytime.

14. Lucidota amabilis.

Photinus amabilis, Gorham, Trans. Ent. Soc. 1880, p. 80, 2’.

“ Nigro-griseus ; thorace albido, disco miniato vitta mediana ad basin latiori, nigro-piceo ; elytris albo-subviridi

concinne marginatis. 2.” Long. 7-11 millim. ¢ 9.

Mas. Antennis longioribus, leviter serratis ; segmento quinto macula parva rubida.

Hab. Costa Rica, Rio Sucio (Rogers)*; Panama, Pefia Blanca (Champion).

This species was accidentally omitted altogether in the first part of this volume.

The examination of four specimens captured by Mr. Champion, of which two are males,

satisfies me it is a Lucidota; the long compressed slightly serrate antenne of the male,

together with the black abdomen with a single luminous point, are conclusive. It

is easily recognized by the grey leaden elytra with a broadish white margin of even

width from the shoulders to the apex, which has a greenish-yellow tint. The disc of

the thorax is wholly pitchy in the Peta Blanca specimens, which were captured on the

wing in the daytime in the dense forest at an elevation of 7000 feet.

15. Lucidota xanthopleura. (Tab. XI. fig. 21.)

Nigro-fusca, oblongo-subovata; prothorace flavo, disco miniato, immaculato, haud canaliculato; elytris medio-

eriter ampliatis, lateribus late flavo-marginati-fuscis ; antennis serratis, articulis tribus ultimis pallide

flavis. Long. 103-12 millim. ¢ 9.

Mas. Antennis serratis, quam corpus paullo brevioribus ; segmento penultimo albescente.

Femina. Antennis brevioribus minus serratis.

Hab. Panama, Volcan de Chiriqui (Champion).

This is a very distinct species belonging to a series with rather small thoraces, and

well developed and somewhat expanded elytra. The thorax is even and shining, a

few tubercles are noticeable on the disc, and sometimes even a faint carina; the

antennee of the male are three-quarters of the length of the body, or rather more simply

serrate, with the three apical joints conspicuously pale; the legs are fuscous-black.

The underside of the thorax is much tinted with rosy-red; but this appears not to be a

MALACODERMATA., 255

very luminous species. Mr. Champion met with this insect by sweeping Bam busacez

in the virgin forest in the daytime, and only at 8000 feet elevation.

It is probable that the species of glow-worms which are most luminous are not

generally to be found at large in the daytime; Mr. Champion’s observations bear me

out in this.

16. Lucidota tincta.

Nigro-fusca; elytrorum lateribus in medio, prothoracis margine antico et laterali, et antennarum articulis

duobus apicalibus albidis; prothoracis disco miniato nigro-vittato, vitta ad basin cum macula parva

conjuncta. Long. 8-9 millim. 6.

Hab. Panama, Volcan de Chiriqui (Champion).

Very closely allied to L. apicicornis and perhaps a local form of that species. It

differs, however, in uniformly having a thorax which is proportionally much smaller,

with the black vitta and base more distinct. The underside is dark, with the legs pale

at their bases, and the apex pale in an undefined manner.

17. Lucidota sinuatocollis.

Nigro-fumosa, opaca ; prothorace albido, disco roseo parum distincte fusco-vittato, lateribus sinuatis antice

angustatis, fronte producto ; antennis corporis fere longitudine, compressis, leviter serratis, articulis duobus

apicalibus albis. Long. 8 millim. o.

Mas. Segmento subapicali utrinque albido.

Hab. Panama, Volcan de Chiriqui, 2000 to 4000 feet ( Champion).

This species has a good deal of resemblance to L. tincta, but more nearly still to

Photinus edus. It is, however, perfectly distinct from either, and will soon be recog-

nized if the following points are attended to, viz. the two apical, or half the last but

one, and the apical joint of the antenne only are white. ‘The thorax is pinkish red,

not shining nor channelled, and of an ogival form; the sides contract a little before the

base, the hind angles are acute, a little produced backwards. ‘The luminous parts are

only two very small spots on each side of the subapical segment: the latter character

alone will separate it from the two species mentioned. But in this character it is like

P. armatus and other species. Only three males have been found.

18. Lucidota difformis.

Oblongo-subovata, nigra; prothorace, ore, palpis, meso- et metasternis, pedibus basi, elytrisque dimidio basali

indeterminate flavis; antennarum articulis duobus apicalibus albidis; segmentis duobus ventralibus

pallide flavis. Long. 9 millim. 6.

Femina. Antennis articulis duobus ultimis cum precedenti (basi preetermissa) albidis, elytris totis ochraceis.

Long. 10-11 millim.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

If I am correct in uniting these two forms as the male and female of one species, it

is the first case that has come under my notice among the Lampyride of the sexes being

differently coloured ; the difference, however, is only that of the elimination of the in-

256 SUPPLEMENT.

fuscate deepening of colour of the apical half of the elytra, which varies in many species,

and may be sometimes confined to one sex. At all events all the specimens I have

examined with dark elytra are male, while the three with wholly ochraceous elytra are

female. This species is rather wide, with the thorax of the usual size, with its disc

smooth, without channel, faintly carinate, and sometimes with small tubercular points ;

the margin is flattish, not much reflexed, the colour of the disc rich brick-red, in the

female not differing so much from the margin in brightness. The coxe, trochanters, and

femora are yellow, the tibia and tarsi are blackish fuscous, as well as the knees in the

male. In colour this Lucidota resembles ZL. discolor, L. rufa, Ol., and several other

species known to me with the elytra yellow, with black apices. The antenne with white

apical joints will distinguish it from any of them. It will come near to L. apicalis.

19. Lucidota vitricollis.

Oblongo-subovata nigra; prothorace sordide albida, antice vitrea macula discoidali subquadrata miniata, ad basin

parum infuscata; antennis breviusculis, simpliciter compressis; segmento sexto ventrali macula parva alba.

Long. 10 millim. ¢?

Hab. Guatemata, Purula (Champion).

The species for which this specific name is proposed differs very much in some

aspects from others of the genus, and is, in fact, very nearly allied to an insect from

Japan, which I have recently described under the name Lucidota fumosa. ‘These

species have the antenne almost simple; the thorax narrows from the base, but is either

evenly round in front, or the front is sinuously produced, and has the front portion

with diaphanous glassy areolets. The examplesof Z. vitricollis, five in number, appear

to be males, and the structure of the apex of the abdomen is a little similar to that of

the species of Hyas with simple antenna, viz. the seventh ventral plate and the pygi-

dium leave an opening’ between them, the eighth or genital segment being concealed

within. ‘The only luminous part is a single spot in the centre of the sixth segment,

which is conspicuously white, with sometimes a very small indistinct spot on the

preceding segment, but no doubt the light affects other parts of these plates, which are

often brownish in dried specimens.

20. Lucidota chiriquiana.

Oblongo-subovata, nigro-fusea, supra ochracea; prothorace subtriangulari, lateribus reflexis, disco macula qua-

drata parum miniata, antice leviter carinata; capite, antennis, tibiis, tarsis abdomineque fuscis. Long,

9-10 millim. <6.

Mas. Segmentis ventralibus quinto et septimo utrinque albido-maculato.

Femina? Segmentibus ventralibus tribus apicalibus cum pygidio totis albis.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

This species has avery puzzling aspect. At first sight it is very like the yellow form

of Hyas semifusca met with on the Volcan de Chiriqui, but is narrower; nor have I

observed the light-giving spots to be placed in a similar position in any of our species

MALACODERMATA. 257

of that genus. The occurrence of specimens with the whole of the three apical plates

pale does not assist us here, for I cannot recognize in either of these forms any sexual

difference in the head, antenne, or form of the ventral plates; these are of the male

type, such as exist in Z. vitricollis. This species and the following one have a general

resemblance to the genus Alecton. The reference to Luctdota must therefore only be

considered a provisional one, till the generic characters have been better elucidated.

21. Lucidota complanata.

Oblonga, parum ovata, nigro-fusca; prothorace subtriangulari, antice rotundato, sordide ochraceo, disco nigro-

vittato, utrinque haud conspicue miniato, obsolete carinato; elytris margine explanato ab humeris, pone

medium late pallidis. Long. 9-10 millim. 6.

Mas. Segmentis tribus apicalibus ventralibus utrinque albido-maculatis.

Hab. Panama, Volcan de Chiriqui, Bugaba ( Champion).

The characters of this species are the same as those of the last, excepting the colour

of the thorax and elytra, and of the whole underside of the body, these being of a

dark fuscous-black, with only the parts named in the diagnosis pale. The antennz

are compressed, scarcely serrate, widest in the middle, reaching rather behind the

posterior coxee. The apical ventral spots are in some cases visible on the three last

segments, in others only on the fifth and seventh; and in some specimens the three

segments are wholly pale, as in L. chiriquiana. Met with commonly by Mr. Champion

in the hot low country at Bugaba, less frequently at from 2000 to 6000 feet altitude ;

it is, he observes, frequently found sitting on leaves in the forest in early morning, and

not seldom seen on the wing.

22. Lucidota fenestrata.

Oblonga, parum ovata, fusca; prothorace elytrorumque margine laterali et apicali sordide albis, prothoracis

disco miniato vix ad basin infuscato, lateribus antice angustatis fronte subdiaphano; antennis serratis.

Long. 9 millim. <6.

Mas. Segmentis quinto et sexto macula transversa in medio alba nitidissima, nigrocincta; oculis sat magnis,

Hab. Panama, Volcan de Chiriqui (Champion).

This species will perhaps be best recognized by my comparing it to very small

Cratomorphus, with which genus, indeed, I should be inclined to incorporate it, if it

were not that the antenne are longer and more serrate than to render that course

necessary, and because the apical segments are in form the same as those of the three

species just described. The luminous parts are, however, different, being two trans-

verse areze on the fifth and sixth ventral plates, just such as are seen in some true

Cratomorphi, e.g. C. ovatus. The thorax is pale, slightly diaphanous in front,

narrowed from its base, but neatly rounded in front. The elytra are fuscous, or pale

leaden black, with the entire lateral margin pale, this pale margin returning a little

up the suture at its apex. I have only detected two examples among the Lampyride

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, October 1884. oL

258 SUPPLEMENT.

collected by Mr.Champion; they were probably not distinguished at the time from L. com-

planata. The seventh ventral and the pygidial plates afford an opening, within which

the genitalia lie concealed; but in this and its allies I think I recognize two curved

style-shaped or filiform processes, which may act as claspers. ‘These parts are all very

soft, and sufficient specimens are not available at present for ascertaining by dissection

whether they will prove of any use in the formation of a genus.

23. Lucidota comitata.

Nigro-fumosa, subparallela ; prothorace albido, disco nigro-vittato, utrinque miniato; elytrorum limbo laterali

pallido; antennis nigris leviter serratis. Long. 64-7 millim. ¢.

Mas. Segmento ventrali septimo utrinque macula parva haud distincta albescente.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

This is one of the smallest Lucidote, and as it precisely resembles in colour and size

Photinus plumbeus and P. concinnus, it would be readily confused with them, unless

the more compressed, broader, and more serrate antenne were noticed. On examining

the underside a greater difference would be seen, as, instead of the abdomen being

wholly white in its apical half, only two very inconspicuous spots are to be seen on

the penultimate ventral plate.

It appears to be not uncommon in the localities where it was found.

Lucidota diaphanura (p. 36).

To the Mexican localities given, add :—Misantla (Hoge, 3 ), Chiquishuita (coll. Sallé).

The two males noticed in my description as differing slightly from the type are from

the locality last named. Three males in Hoge’s collection are most intensely black in

the dark parts, and have the margins of the thorax narrowly black.

Lucidota discolor (p. 37). (Tab. XI. fig. 23, var.)

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

PHOTINUS (p. 38).

1 (a). Photinus incongruus.

Oblongus; elytris sat latis, fuscis, margine toto vittaque ante apicem abbreviata testaceis ; prothorace pallide

testaceo disco nigro-fusco utrinque miniato ; scutello fusco, apice dilutiore; corpore subtus nigro (seg-

mentis diaphanis exceptis) ; femoribus basi coxisque pallidis. Long. 16-18 millim. ¢ 9.

Mas. Segmentis quinto et sexto ventralibus totis lete flavis, eburneis, septimo perbrevi pallido, genitali parvo,

egre observando pallido, pygidio nigro.

Femina. Segmento quinto in medio transversim diaphano; sexto, macula mediana pallida, margine apicali in

medio minute exciso; apicali fusco apice exciso.

Hab. Guatemata, Chinantla (coll. Sallé ¢ 2); Panama, Volcan de Chiriqui (Cham-

pin). .

MALACODERMATA. 259

Very closely allied to P. congruus, Chevrolat, some of the varieties of which com-

pletely resemble it on the upper surface; but having now examined a large series of

both, I have no doubt of their specific distinctness. ‘The antenne are shorter in the

male ; when the head is extended in P. incongruus they do not reach further back than

the posterior edge of the metasternum, while in P. congruus they will be longer by the

two or three apical joints. M. Chevrolat did not distinguish the sexes of P. congruus,

but simply says the three apical segments of the abdomen are traversed with yellow.

The fact is that the basal segments in the male of that species are pale fuscous

margined with whitish yellow, the basal half of the fourth and all the apical ones are

pale, and the pygidium is subdiaphanous ; this latter character I find to be always fixed.

The female also (and I have a type from himself) is wholly pale at the apex of the

abdomen, not partly infuscate as in P. incongruus.

The pale vitte of the elytra are generally costate, with the nervure conspicuous in

P. congruus, and the lateral margin is dark. In P. ¢ncongrwus there is only one

discoidal vitta quite even, and of equal width, and the margin is pale. The whole

insect, and especially the thorax, is narrower.

Mr. Champion found this species in dense virgin forest on the Volcan de Chiriqui, at

the altitude of 5000 to 6000 feet, and not lower.

Photinus incongruus, var.?

Pallidior, vitta discoidali vel egre distinguenda, vere omnino obliterata. Long. 12-18 millim. ¢ 9.

Hab. Panama, Volcan de Chiriqui, alt. 2000 to 3000 feet, Bugaba (Champion).

At lower altitudes on the Volcan de Chiriqui Mr. Champion met with a few speci-

mens of a Photinus, which only differ from P. incongruus in the pale fuscous colour of

their elytra. The specimens from Bugaba are altogether without a vitta, and one of

them is smaller than any other specimen I have seen, while those from an intermediate

altitude have the vitta faint. Thus we may expect to find traces of other species at

different altitudes ; and the darker or melanic forms occur both in higher latitudes, as

well as in the cooler regions of mountain districts.

I have observed the same effect to be produced in Photuris pennsylvanica, a species

which is somewhat similarly marked to this species.

2 (a). Photinus ignis-fatuus.

Nigro-fuscus ; thorace albido subdiaphano, disco nigro, utrinque miniato. Long. 19-21 millim. 3.

Mas. Segmentis quinto et sexto ventralibus lete flavis, marginibus profunde excavatis, apicalibus cum pygidio

pallidis.

Femina. Segmentis tribus apicalibus albidis.

Hab. Panama, Volcan de Chiriqui (Champion).

Allied to P. meteoralis, but differs in the ventral luminous parts, especially those of

the male.

212

260 SUPPLEMENT.

The thorax is also entirely pale at its edges, and the black portion of the disc is

much less extended. The elytra, especially those of the female, are less deeply black,

and show no trace of a vitta.

Of eight specimens collected by Mr. Champion, three are males.

Photinus meteoralis (p. 38).

Var. Thoracis disco vitta lata nigra utrinque miniata.

Hab. Guatemata, Cerro Zunil (Champion), Coban (Sallé, coll.).

Photinus perelegans (p. 40).

To the localities given, add:—Panama, Volcan de Chiriqui (Champion). ¢.

The specimens from the Volcan de Chiriqui are darker, with the margins and suture

conspicuously pale by contrast, the pygidium being also dark. Mr. Champion remarks

that this species is highly luminous, as no doubt the males of all species of the

“‘ Macrolampis” section are. About ten specimens, all males, were found by him at

the elevation of 5000 to 6000 feet.

6 (a). Photinus volcanicus.

Oblongo-elongatus, parallelus, depressus, nigro-fuscus ; prothoracis margine laterali et frontali albido, disco plus

minusve nigro nitido, utrinque plerumque parum miniato ; elytris fuscis, sutura margineque albis, ante

apicem et basin desinentibus. Long. 73-10 millim. dg 2.

Mas. Segmentis quinto et sexto longioribus, lete albidis eburneis ; quarto etiam ad apicem albido.

Femina. Segmento quinto albido, apicalibus fuscis.

Hab. Nicaragua, Chontales (Janson); Panama, Volcan de Chiriqui, Bugaba, Tolé

(Champion).

This is the insect referred to at p. 47, anted, under P. pulchellus, as differing from

the type. Further study of a very large series brought by Mr. Champion from Panama,

enable me to describe it as quite distinct. It is, in fact, one of the Macrolampis

section, and I have no doubt it is a widely spread and abundant species. It is larger

and longer than P. pulchellus, and (apart from the luminous segments of the male) the

greater amount of black on the disc of the thorax, the legs not pale at their bases, &c.,

will separate it. The only other species to which, for size and colour, it can well

be compared, is P. cinctellus, but its form is wholly different, not being in any way

oval or convex. The Chiriqui specimens are (as in other species already noticed)

darker when found at elevations of 5000 to 6000 feet, than those from 2000 to 4000

or lower altitudes.

6 (s). Photinus infirmus.

Pallide testaceus vix albescens; capite nigro; thorace disco perobsolete canaliculato, miniato, interdum subin-

fuscato ; abdomine basi fusco. Long. 7-11 millim. ¢ @Q.

MALACODERMATA. 261

Mas. Segmentis quinto, sexto et apicalibus albido-flavescentibus.

Femina. Pectore magis infuscato, segmentis quinto et apicali pallidis, sexto infuscato.

Hab. Guatemata, Zapote, Cerro Zunil, San Isidro, Las Mercedes (Champion) ;

Panama, Volcan de Chiriqui, Bugaba (Champion).

Among the Photini, species which are very pale on their upper surface are at first

very puzzling and unsatisfactory to deal with, looking as they do like pale or immature

forms of other species. A very careful study convinces me that in general such forms

are quite distinct, and that these soft insects dry and mature so quickly that it is very

rarely they are met with at large immature. The present is the first example of a

really pale species among the Lampyride in this work, but such species are frequent in

the hotter parts of the West-India Islands and South America, and it will be recollected

we have had similarly pale species among the Telephoride.

This insect is, I think, nearest P. volcanicus, but has the elytra never more than

slightly infuscate, with narrowly pale margins. The thorax is not longer than it is

broad at its base. It is not often brightly rosy, but it is very beautifully so in the

specimens from Bugaba, which I select as the types, and with these a single specimen

from Zapote agrees. The dark fuscous colour of the abdomen contrasting with the

white luminous segments proves the specimens mature, as does the condition of the

genital segments, and the black head. The antenne are scarcely half as long as the

body ; they are, with the margins only of the tibia and tarsi, fuscous. The wings are

also (as usual) dark fuscous. About two dozen specimens were sent; the sexes

being nearly equal in number. In all Photini, unless the contrary is mentioned, the

eyes of the males are larger than those of the females, a character which will often

assist one in separating them from Lucidotw, in which genus they are nearly equal.

10 (a). Photinus radians.

Oblongo-elongatus, parallelus, nigro-fuscus; prothorace pallido, disco late nigro-vittato (vitta proper basin

transversim dilatata) utrinque miniato, medio obsolete canaliculato, antice tenuissime carinato; elytris

prunneis, disco late infuscatis, vel nigro-fuscis, sutura margineque laterali et apicali brunneis. Long.

14-15 millim. ¢Q.

Mas. Segmentis quarto ad apicem, quinto et sexto totis albis eburneis, pygidio fusco.

Femina. Segmento quarto ad apicem, quinto in medio albis, sexto et apicali fuscis.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

Of the size and form of the species recorded in the present work as P. consanguineus,

and, like it and P. cinctellus, margined round the entire edge of the elytra, except at

the base, but of a rich chocolate brown colour, and with this colour often widened at

the basal half of the suture, and expanding till it meets the marginal brown, thus

leaving only the bases and a portion near the apex indistinctly infuscate. The antennz

are shortish, not reaching behind the posterior coxe. I do not mention the form of

the ventral segments because these are normal, and have been already described by me;

262 SUPPLEMENT.

I shall, therefore, in future only allude to such cases as appear to me peculiar and

specific. Such segments as are described by the word “ eburneus” are of a yellowish

white, and with a shining waxy-looking surface, while such as are simply termed white

may be assumed to be dull and soft.

Of this new species a very great number of specimens were collected by Mr. Champion ;

it was apparently very abundant in the forests at from 2000 to 6000 feet. The males

were as usual more abundant than the females.

12 (a). Photinus flohri.

Nigro-fuscus; elytris nigro-plumbeis, prothorace lete albo-flavescente, disco nigro-vittato utrinque miniato,

basi lato, lateribus antice valde angustatis ; elytris subdepressis in medio paullulum ampliatis. Long. 8-11

millim. ¢ Q.

Mas. Segmento sexto ad marginem, duobus apicalibus cum pygidio totis albis, pygidio segmenta ventralia multo

superante.

Femina. Segmentis apicalibus ventrali et dorsali totis cum duobus precedentibus ad margines albis.

Hab. Mexico (£lohr).

Sefior Flohr sent me four specimens of a Photinus, which I at first thought identical

with P. simplex, but which on examination proves distinct; it will be recognized by the

very beautifully marked thorax, of which the sides narrow strongly from the base. The

elytra are nearly of the same colour and form as those of P. aurora, P. sanguinicollis,

and P. albicauda, i. e. totally leaden black and slightly expanded.

The thoracic vitta is faint on the front margin, but not (as in P. aurora) wholly

obliterated.

13 (a). Photinus? brevicornis. (Tab. XII. fig. 9.)

Nigro-fumosus ; prothorace, scutello, mesosterno, coxis trochanteribus et femoribus aurantiaceo-rufis; antennis

brevibus, compressis, pubescentibus, versus apicem valde attenuatis, articulis duobus basalibus apiceque

summo testaceis. Long. 10-11 millim. 9.

Femina. Segmento quinto ventrali macula mediana alba, apicali (septimo) pallida, utrinque alba.

Hab. GuateMata, San Isidro (Champion).

This species is of the size, and above almost exactly of the form and colour of

Lucidota bella, but the shortness of the antenne and their total want of serration (the

joints being not at all produced on their inner sides), although we have at present

seen only two female examples, certainly indicate a distinct species. It may possibly

be a Lucidota, but in the absence of the male that question cannot be settled. The

length of the antenne, their want of compactness, and the serration or pectination of

their joints are among the characters which best distinguish that genus, and these

are all wanting in the very short compressed joints closely articulated, which we find

here. It is, however, wholly distinct from Photinus rujficollis, and the light-giving

white spots are so different from the wholly yellow terminal segments of that species

that I should not place it very near it; moreover the thorax is much more like that of

MALACODERMATA. 263

a Lucidota, viz. distinctly impressed in the centre, the margins reflexed, and rather

strongly punctured, except on the disc, of which the convex portion is smooth and of a

deeper orange colour. The scutellum is distinct and brightly yellow, the elytra have

two or three raised lines as in L. bella but not quite so well defined, and the margin of

the elytra is not reflexed at the apex in this insect as it is there. In addition to

the species from North and South America, which closely resemble each other, I

may call attention to the fact that I have described in the notes from the Leyden

Museum, Vol. iv. p. 102, a species of Vesta almost precisely similar to these insects,

but which inhabits Sumatra. The generic differences separating these insects are

hardly so great as those which separate this species from Photinus ruficollis.

15 (a). Photinus montanus. (Tab. XII. fig. 10.)

Ater, ovatus ; prothorace transversim subquadrato antice prominulo, disco utrinque macula rufa notato. Long.

8 millim. ¢.

Mas. Segmentis quinto et sexto albis, eburneis, septimo et pygidiali pallidis, genitali nigro.

Hab. GuatEMALA, Volcan de Agua (Champion).

A very distinct species from any yet recorded in this work, but allied to the species

which follow. It is easily to be recognized in this genus by the thorax being black

with a squarish orange-red spot on each side. The very white luminous ventral parts will

separate it from the following, with which when it is compared, the small and transverse

thorax will be noticeable. The specimens were found at the high elevation of 8500

to 10,000 feet.

15 (s). Photinus nigro-limbatus.

Niger; prothorace albescente, subdiaphano, disco nigro utrinque miniato, margine laterali tenuissime nigro ;

elytris sordide pallidis limbo toto tenuissime nigro ; pedibus pallidis, tibiis tarsisque subinfuscatis. Long.

81-10 millim. ¢ Q.

Mas. Segmentis quinto et sexto flavis subeburneis, apicalibus pallidis, genitali nigro.

Femina. Segmentis quinto, sexto et apicali totis albido-flavis.

Hab. Guatemata, Volcan de Agua (Champion).

In form and colouring of thorax rather like P. lunicollis, to which this species is

clearly allied, but from which it differs in the very pale colour of the elytra, and in

their being very finely margined with black. This narrow margin extends all round

the thorax and the elytra, being faint or quite evanescent in the front of the thorax,

and at the base of the suture. The colour of the elytra is very nearly that of P.

infirmus, but the form is that of P. /unicollis. Examples occur without the narrow

black margin to the elytra.

Photinus guatemale (p. 44).

To the Guatemalan localities given, add:—Quiche Mountayps, Totonicapam 8500 to

10,000 feet (Champion). |

264 . SUPPLEMENT.

The specimens from Totonicapam vary a little from the type in having the thorax

black with an oblong orange-red spot on each side, and the luminous segment, which is

almost confined to the sixth in both sexes, roseate. A good series was obtained at

Duefias, all of which agree pretty closely.

Photinus lunicollis (p. 44).

Several more Guatemalan specimens from Duefias and Capetillo have been examined

by me; many individuals show no trace of luminosity in either sex, while some males

have the sixth segment whitish.

Photinus aurora (p. 45).

To the localities given, add :—Panama, Bugaba (Champion).

Photinus albicauda (p. 46).

To the Mexican localities given, add :—Jalapa, Cordova (Hége).

Two specimens; one from Jalapa brightly coloured and easily recognized, a male ;

one from Cordova discoloured and doubtful.

19 (a). Photinus moestus.

Ater, ovatus; prothorace disco rufo, nigro-vittato, lateribus nigris, margine antico dilutiori quam 9°.

Mas? Segmento septimo cum pygidio utrinque albescente.

Femina. Abdomine toto nigro. Long. 8-93 millim.

Hab. Guatemata, Purula, Cubilguitz, San Gerénimo (Champion).

Not unlike P. sanguinicollis and mentioned under that species as possibly identical

with it. It is, however, more oval, and has its thorax more widely margined with

black. The black vitta is of nearly the same width in the middle as the margin, but

widens at the base and in front. Thus the disc is divided in two blood-red areze. The

thorax is very nearly semicircular. The wholly black abdomen is noticeable and will

separate it from its allies at present described. One male specimen from Purula has

the abdomen with only a faintly whitish area on each side of the black genital eighth

segment, that is to say on the seventh ventral and on the pygidial. But I think this

male may be a specimen of P. guatemale, as another male has the abdomen black.

19 (s). Photinus eous.

Oblongo-elongatus, nigro-fuscus; prothorace miniato, margine albescente, disco canaliculato medio parum

infuscato; antennis articulis tribus vel quatuor ultimis albis; abdominis segmentis quatuor apicalibus

utriusque sexus indeterminate albis. Long. 7-8 millim. ¢ 2.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

MALACODERMATA. O68

This species will, I think, be recognized when the combined characters of rather long

antenne with the apical three or four, with sometimes half of the preceding joint,

nearly wholly rufous, thorax with a distinct but short channel, and abdomen with

three or four segments white (but not ivory-white or shining) are noticed. The elytra

are blackish and dull and are sometimes narrowly margined with pale ; this is especially

noticeable in the Bugaba specimens. The legs are black, the front ones and the middle

pair being a little paler at their bases. Mr. Champion observed this species and

several others to fly in the early morning in the forest. A very common species in the

locality where it was found; a large series of more than one hundred examples was

collected.

19 (c). Photinus subfuscus.

Oblongo-elongatus, subparallelus, sat latus, fuscus ; prothorace pedibusque pallidis, his, tibiis tarsisque, illo disco

disperse fuscis; capite nigro. Long. 15 millim. ¢ 9.

Mas. Segmentis quarto, quinto et sexto pallide flavis eburneis, septimo et genitali fere obtectis pallidis ; segmento

sexto margine in medio angulariter exciso, septimo perbrevi in medio acute producto.

Femina. Segmentis quatuor ventralibus apicalibus albis.

Hab. Panama, Pefia Blanca, San Feliz, Tolé (Champion).

This Photinus is allied to many South-American species, but has no near ally among

the species yet recorded from Central America. It may be recognized perhaps by

being compared to the European Lampyris reichei or the North-African L. zenkeri,

which it closely resembles in size, form, and colour. The prothorax is equally wide

and long, but evenly rounded in front and sometimes narrowed from the base, which

makes it of the form often called hat-shaped; its surface is even, rather widely rugose

round the margins, but little reflexed ; the centre of the disc has a rude rather deep

channel, on each side of which is a tumid swelling darker in colour than the rest of

the disc. The elytra are of a pale fuscous tint evenly distributed. The female

specimen described has the margin of one elytron abnormally expanded below the

middle and asymmetrically to the other one, in which it is very slightly so. The

specimen from Pefia Blanca is a female; this one has the elytra normally formed, the

abdomen very wide, the sides of the two dorsal penultimate segments, and most of the

pygidial one, pale.

22, (a). Photinus armatus. (Tab. XII. figg. 2, a, 4, ¢, 3.)

Oblongus, subparallelus, nigro-fuscus ; prothorace albido, disco late nigro-vittato, utrinque lete miniato ; antennis

articulis duobus apicalibus albis; pedibus basi et geniculis pallidis. Long. 7 millim. ¢ 9.

Mas. Segmento septimo apice acute producto, octavo (genitali) convexo; genitalibus lanceolis quatuor armatis,

duobus superioribus uncinatis, inferioribus curvatis acutis.

Femina. Segmento ventrali apicali apice rotundo simplici, utrinque maculis duobus albescentibus.

Hab. Panama, Bugaba (3 ? ), Volcan de Chiriqui (Champion).

This species is remarkable for the genital armature of the male. I have not observed

BIOL. CENTR.-AMER., Coleopt., Vol. ILI. Pt. 2, October 1884. 2M

266 SUPPLEMENT.

anything similar to it among the Lampyride before. The antenne are compressed

and not unlike those of a Lucidota, such as L. tincta, with which I at first associated

the species, and which it resembles in colour, but they are very much shorter, and it

appears to me that this very curious species is allied to P. exstinctus, and that possibly

they are forms requiring a new genus; but a close examination of that species (of which

I had ‘formerly seen only female examples), although I have detected males, does not

reveal any such remarkable appendages as we have here. The males would not appear

to be highly luminous, the seventh segment only being a little paler than the rest of

the abdomen, while the female has two pale spots, one on each side of the apical

segment, which are clearly the light-giving parts.

Fortunately a male and a female were transmitted, united im copuld, on one card

from Bugaba, from which I have drawn the diagnosis. In some of the specimens from

the higher altitudes of the Volcan de Chiriqui the margins of the elytra are white as

in Z. comitata, but in the types they are of the same black tint with the elytra. So

many species are coloured in the same way that comparative characters based on colour

alone would be only misguiding. ‘The width of the antennz would lead one to place

the insect in Lucidota; I prefer to retain it here, as being allied to P. exstinctus,

P. sobrinus, and P. nigricans, Say. From Lucidota tincta, with which it might be

otherwise confounded, in addition to the genital armature, the proportional shortness

of the antenne will separate it. Their joints from 3-8 are about half as long again as

wide, hardly more produced at their angles internally than externally, so that they are

not serrate, nor do they differ in the sexes; joint 10 is as long as but narrower than the

preceding one, white, or infuscate at its base only; joint 11 is much smaller in the

female, but as long though narrower in the male and entirely white. At present I have

found about six specimens from each locality which I refer to this species.

25 (a). Photinus diurnus.

Oblongo-elongatus, subparallelus, nigro-fuscus, parum nitidus ; prothorace disco nitido, basi impresso, margine

frontali et laterali pallido, elytrorum limbo toto basi excepta, pedibusque basi pallidis. Long. 6—7 millim.

SQ.

Hab. Panama, Volcan de Chiriqui (Champion).

This insect is closely allied to P. fumigatus, and might perhaps be considered a

local form of that species ; nevertheless the whole series of several hundred specimens

collected by Mr. Champion at the altitude of 2500 to 4000 feet differ from that species,

which is common at lower altitudes, in being more parallel and much narrower. It is,

like P. fumigatus, either non-luminous or very slightly so, judging by the abdominal

segments, which are only infuscate towards the sides and apex in either sex. The

thorax is more uniformly dark all over the disc than in P. fumigatus, in which species

the sides of the disc have often a deep red spot. There is very little doubt that it is a

day-flying species.

MALACODERMATA. 267

25 (s). Photinus championi.

Oblongus, sat latus, nigro-fuscus, vix nitidus ; elytrorum limbo toto (basi excepta) tenuissime flavo; prothorace

lineola brevi utrinque sanguinea (maris), vel concolore (femine). Long. 18 (¢), 162 (@) millim.

Mas. Segmentis quinto et sexto flavis eburatis.

Femina. Segmento quinto flavo, sexto margine apicali bisinuato, medio exciso.

Var. Prothorace pallido, disco nigro-fusco utrinque lineola sanguineo, margine reflexo sordide infuscato. 9.

Hab. GuatemMaLa, Volcan de Agua 8500 to 10,000 feet, Quezaltenango 7800 feet

(Champion).

This fine species of Photinus is one easily recognized by its large size and general

dark colour, the thorax being relieved by a vivid blood-red line on each side of the

dark disc. ‘There are only two specimens from each of the localities. Those from the

Volcan de Agua are darker than those from Quezaltenango, and the female specimen

of the former is concolorous above, if we except the extremely fine but distinct yellow

margin and suture. The apical segments are normal—the genital one in the male

being quite black, the one preceding it, or the seventh, being black, only pale at its

sides, the fifth and sixth totally yellow and shining. In the female it is the fifth alone

that is luminous, the apical and subapical ones dark and notched in the middle. I

have pleasure in dedicating this species to its captor, Mr. Champion.

25 (c). Photinus signaticornis.

Breviter ovatus, nigro-piceus, parum nitidus ; prothorace ad latera albescente, disco late miniato, nigro-vittato ;

antennis brevibus compressis, articulis duobus vel tribus apicalibus albis. Long. 74 millim. 9.

Mas. Latet.

Femina. Segmento ventrali apicali flavo-albescente.

Hab, Panama, Bugaba (Champion).

The white apical joints of the antenne separate this species of Photinus from any

except P. armatus and P. edus, from either of which it is distinguished at once by its

short oval form, in addition to other characters. The elytra are entirely black, with a

faint purplish tinge. The antenne have all their joints short, the intermediate ones

about half as long again as wide, while the three white apical ones in the female are

not longer than wide. One example has rather longer antennz, with two joints only

white, and is perhaps the male; the abdomen, however, in this one is too much shrunk

to be well observed. The form is very nearly that of P. latiusculus and of P. montanus.

25 (p). Photinus purulanus. (Tab. XII. fig. 1.)

Oblongus, subparallelus, niger, depressiusculus; prothorace maculis duabus rubricatis. Long. 5-6 millim.

dQ.

Mas. Oculis globosis prominulis, segmento subapicali ventrali macula parva utrinque pallida.

Hab. Guatemata, Purula 4000 to 5000 feet (Champion).

This little species is not very like any other known to me as described. The thorax

2M 2

268 SUPPLEMENT.

is very small compared with the length of the elytra, and has the entire margin as well

as a narrow vitta black, leaving only two, not regular, spots red. The black parts of the

thorax are rather rugose ; the antenne are filiform, more than half as long as the body,

wholly black. The luminous parts appear to be very small, confined to two spots on

each side of the apical segment. Six specimens agree in these characters.

80 (a). Photinus pusillus.

Griseo-niger; prothorace albescente, disco miniato nigro-vittato, basique in medio nigricante ; elytris margine

laterali concolore ; antennis breviusculis, articulis intermediis oblongo-quadratis haud serratis. Long. 5

millim.

Hab. Panama, Bugaba, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Var. Elytris margine albido.

Hab. Panama, Bugaba (Champion).

Approaching very closely to P. parvulus this little species must be separated on

account of the comparative shortness of the antenne, and the abdomen instead of

having two or three white segments has only a small pale spot on each side of the apex,

which is very little distinct, but is a little raised and shining. The antenne have the

joints relatively much shorter than in P. parvulus, and the thorax has not the disc

broadly dark, but only with a vitta which narrows from the front towards the base, and

has there a more or less distinct transverse extension. The legs, mouth, and parts of

the sterna are often pitchy. The eyes are small in all the specimens I have yet

examined. Some specimens from the lower elevation of 2000 to 4000 feet are smaller,

but present no differences upon which I can pronounce them distinct; there are two

specimens from a higher altitude, 4000 to 6000 feet, still smaller, measuring scarcely

more than 3 millim., and which have their very small thoraces with a reddish

spot on each side of the disc, the black vitta being widened in front as well as at the

base. ‘These may be a distinct species. The two specimens I allude to are, I think,

the smallest Lampyride I have yet seen.

30 (s). Photinus minusculus.

Niger; prothorace albescente, nigro-vittato; antennis leviter serratis, articulis duobus apicalibus albis. Long.

5 millim.

Hab. Panama, Volcan de Chiriqui 2000 to 4000 feet (Champion).

This is obviously a distinct species from P. parvulus or P. pusillus: there being,

however, only two examples (of which, from their condition, I cannot determine the

sex), it is not advisable to do more than indicate the existence of the species. From

P. armatus the much smaller size and concolorous margin of the elytra separate it.

The legs are whitish, clouded with dark.

MALACODERMATA, 269

Photinus ater (p. 49).

To the Mexican localities given, add :—Ciudad in Durango (forrer).

Three males taken by Forrer differ from the type in being longer; but are not, I

think, distinct.

PYRECTOMENA (p. 50).

Pyrectomena striatella (p. 51).

To the localities given, add :—Mexico, Cordova (Hége, 3 @ ).

A male and a female taken by Hoge at Cordova differ in no way from this species,

except in their rather larger size. The thorax in these two specimens is beautifully

miniated on the disc above the transverse production of the central vitta, and there is

a quite diaphanous spot on each side in front of this red part, the eye showing through,

which appears like a dark mark. This is also the case in specimens from Duefias, where

it is abundant.

4, Pyrectomena discoidea.

Oblonga, nigro-fumosa ; prothoracis margine laterali et frontali, elytrorum margine laterali sat late et sutura

tenuiter albescentibus, limbo laterali attamen tenuissime nigro ; prothorace carinato, disco convexo, latius

nigro utrinque parum miniato. Long. 7-10 millim. @.

Hab. Panama, Taboga Island, San Miguel in the Pearl Islands (Champion).

Of this new species only three specimens have been found, and as all are females the

description is incomplete. The body beneath, with the legs, is nearly quite dull black,

the trochanters, tips of the cox, and extreme margins of the ventral segments alone

being pale. The antenne are short, even for a Pyrectomena, and have as usual two or

three joints at base paler. The thorax is less produced and rounder in front than

usual in this genus, and the disc is more suffused with black, so that the species at

first sight appears very like a Photinus. The characters which usually distinguish a

Pyrectomena are :—the elongation of the thorax, with sides nearly parallel in their

basal half; the possession of a carina in the centre of its disc; distinct coste on the

elytra; and in the male the fifth and sixth ventral plates are long and very distinctly

eburated, yellow, and smooth.

The female of this species does not appear to be at all luminous. The specimens

differ very much in size; and in one of the two smaller ones from Taboga Island the

suture is unicolorous with the elytra.

270 SUPPLEMENT.

CRATOMORPHUS (p. 51).

4, Cratomorphus altivolans. (Tab. XII. fig. 3.)

Late ovatus; prothoracis elytrorumque marginibus expansis ; corpore nigro; ore, pectore, pedibusque basi testa-

ceis; supra ochraceus ; thoracis disco basi macula quadrata per lineam flavam divisa. Long. 23, lat. elytr.

13 millim. 6.

Mas. Abdominis segmentis quinto et sexto ventralibus in medio et ad latera, apicalibusque totis flavis ; pygidio

apice leviter at late exciso.

Hab. Panama, Volcan de Chiriqui (Champion).

A single example of a fine Cratomorphus does not agree with any species I have

seen. It may be compared to C. fuscipennis, from which the black body and legs and

the thoracic square mark distinguish it.

Cratomorphi seem always rare. I have never been able to obtain any species in

numbers.

Cratomorphus dorsalis (p. 52).

To the localities given, add :—Panama, Volcan de Chiriqui 2000 to 3000 feet, Bugaba

(Champion).

A male and a female occurred at the former, one female at the latter locality. The

largest female is 25 millimetres in length. In this one the ventral segments are yellow

in their centres, the basal ones more widely so, the fifth and sixth yellow and subdia-

phanous, showing spots of the luminous matter, the seventh (or apical) triangular,

deeply “nicked” at the apex.

5. Cratomorphus concolor? (Tab. XII. fig. 5.)

Cratomorphus concolor, Perty, Del. An. Art. p. 27°; Gorh. Trans. Ent. Soc. 1880, p. 86°.

Oblongo-subovatus, pallide testaceus; prothorace antice diaphano, margine parum elevato, macula basali sub-

quadrata picea, per lineas duas miniatas intersecta; elytrorum basi, pectore pedibusque leviter infuscatis,

capite et antennis nigris, his articulo basali testaceo. Long. 14-15 millim. ¢.

Mas. Oculis magnis, segmento apicali ventrali et pygidio trilobatis, lobo mediano majori, apice rotundato,

lateralibus subacutis.

Hab. Panama, Volcan de Chiriqui 2000 to 4000 feet (Champion).—Sourn AMERICA,

Rio Janeiro 2, Callao.

The determination of species of Cratomorphus is difficult, because sufficient attention

has not been given to the ventral apical segments of the sexes, which, in this genus

especially, are of primary importance. The present species agrees so closely with the

specimens from South America referred to in my note in the ‘Transactions’ quoted

that I have no doubt of their identity. The question of whether these are really the

C. concolor of Perty is still unsettled.

This insect is not unlike a very small C. dorsalis. One of the specimens is much

more suffused with fuscous than the other, perhaps only from discoloration after death.

MALACODERMATA. 271

6. Cratomorphus ovatus. (Tab. XI. fig. 18.)

Late ovatus, nigro-plumbeus, parum nitidus; prothorace, pedibus basi elytrorumque margine infra medium

flavescentibus ; thoracis disco prope basin rufo, linea mediana et ad marginem basalem vix infuscata, sutura

tenuiter flava. Long. 15, lat. elytr. 8 millim. ¢.

Mas. Segmento ventrali apicali medio paullo acuminato; pygidio truncato, margine apicali bisinuato, segmentis

quinto et sexto macula transversa lucide flava.

Hab. Panama, Volcan de Chiriqui 6000 feet (Champion).

A single male, not very satisfactorily placed in this genus. The only structural

point, however, in which it differs seems to be that the abdomen is wholly dark leaden

black, with the exception of the two luminous spots. The genital or eighth segment is

concealed, as usual in Cratomorphus. ‘The general appearance is that of Hyas, but the

anal aperture is closed. The antenne are shown too long in the figure.

7. Cratomorphus fasciatus. (Tab. XII. fig. 4.)

Late ovatus, postice attenuatus, nigro-fuscus, vix nitidus; prothorace fasciaque obliqua in elytris et sutura

antice tenuiter flavis; thorace subtiliter rugoso, macula basali picea opaca. Long. 15, lat. elytr. 84

millim. ¢.

Mas. Segmentis ventralibus quinto et sexto medio flavis, septimo (apicali) apice bisinuato(?); pygidio apice

truncato, simplici.

fab. Costa Rica (Van Patten).

This is a very distinct species from any other known to me; but as there is only

a single specimen, not in very good preservation, I cannot accurately define the apical

ventral segment. It might almost be placed in Aspidosoma, but that the dorsal

segments are acutely lobed at their external angles. It is of the pointed oval form of

many Hyas; the antenne, however, are as short as in the last species, and the eyes are

large. The fascia commences as a wide oblong spot reaching half across the elytra,

and then continued obliquely to near the apex.

ASPIDOSOMA (p. 53).

The larva figured on Tab. XII. fig. 26 is probably that of a species of this genus.

Aspidosoma laterale (p. 53).

To the localities given, add :—Mexico, Etla (Saddé coll.).

1 (a). Aspidosoma cassideum.

Aspidosoma cassideum, Mots. Etud. Ent. 11. p. 14°; Gorh. Trans. Ent. Soc. 1880, p. 84.

Hab. Costa Rica (Van Patten).—Sovutu America, Brazil ! 2.

Differs from A. daterale only in its uniform rusty-brown colour; the elytra are

equally but not more attenuated behind. I do not think it will prove to be distinct;

272 SUPPLEMENT.

but only one specimen, and that in bad condition, is in Van Patten’s Costa-Rica

collection.

Aspidosoma xgrotum (p. 54).

To the localities given, add :—Costa Rica (Van Patten); Panama, Tolé, Volcan de

Chiriqui (Champion).

The Panama specimens are very pale, and want the lateral fuscous spot.

Aspidosoma ignitum (p. 55).

To the localities given, add :—Panama, San Miguel in the Pearl Islands (Champion).

Aspidosoma bilineatum (p. 55).

To the localities given, add :—Mexico, Cordova (Sallé, Hoge), Presidio (Forrer) ;

Costa Rica (Van Patten).

Aspidosoma costatum (p. 55).

To the localities given, add :—Mzexico, Ciudad in Durango (Forrer); GuateMAta,

near the city, Chacoj (Champion); Panama, Bugaba (Champion).

The specimens from Bugaba are of the variety noticed as from Cerro Zunil and Las

Mercedes.

10. Aspidosoma elianum. (Tab. XII. fig. 6.)

Ovatum, antice et postice acuminatum, pallide fuscum ; prothorace subdiaphano, vitta antice abbreviata cum

maculis duabus utrinque hamatis, basalibus, conjuncta fuscis, disco parum miniato ; elytris lineis duabus

vel tribus pallidis ; antennis, palpis, tibiis, tarsisque fuscis. Long. 63-10 millim. ¢ 9.

Hab. Guatamata, Paso Antonio, Puerto de San José (Champion).

This is allied to A. ignitum, but distinguished by its smaller size, by its more acumi-

nate form, and by the markings. The head is fuscous, with the base of the antenne

and mouth paler. The base of the legs and abdomen are pale, and those parts which

are fuscous are still very lightly so.

This species was found on or near the coast. The resemblance to the Hemipterous

genus Alia has suggested the name to me. The least specimens are the smallest of

this genus I have yet seen.

11. Aspidosoma physonotum. (Tab. XII. fig. 7.)

Ovatum, antice posticeque subacuminatum, pallide testaceum, diaphanum; prothoracis disco indistincte

rubido ; elytris viridibus, marginibus explanatis subdiaphanis, macula haud bene discreta pone medium

fusca ; capite abdominisque basi miniatis. Long. 10 millim. ¢.

Mas. Segmentis ventralibus quinto et sexto brunneo-eburatis, lucidis.

Hab. Nicaracua, Chontales (Janson); Panama, Volcan de Chiriqui (Champion).

MALACODERMATA. 273

I have a species of Aspidosoma from Brazil which is closely allied to, if not identical

with, this, and which bears a MS. name “ viridis, Dohrn.” I believe it has never been

described ; and as our insect may be a distinct species, I propose a name derived

from its curious and extreme resemblance to a Cassida of the genus Physonota. I

have only seen three specimens—the two recorded here and my own from Brazil; the

diagnosis, with the aid of our figure, will enable collectors to recognize it. The brown

tint of the luminous segments is probably due to the drying of the fluids.

PHOTURIS (p. 56).

Section I.

1 (a). Photuris hectica ?

Lampyris hectica, Fabr. Syst. El. ii. p. 102 ??

Supra ochracea, subopaca ; antennis, epistomate, palporum articulo ultimo, abdominis segmentis quatuor basa-

libus, tibiis tarsisque nigris ; occipite, pectore femoribusque externe parum infuscatis ; antennis filiformibus,

haud serratis. Long. 13 millim. 9.

Femina. Unguiculis simplicibus ; abdominis segmentis quinto et sexto flavis medio lucidis, apicali obconico,

apice leviter exciso, flavescente, medio fusco.

Hab. Panama, Bugaba (Champion).

The determination of this insect is necessarily conjectural, because there is only one

female specimen. It differs from the species described here as P. livida in having a

proportionally smaller thorax, which is not shining, and which has not the hind angles

acute and produced backwards (asin the P. collaris section); and the antennz are more

filiform, with longer joints. I observe two minute blackish dots on the thorax, which

may be accidental, as they are not placed symmetrically, one on one side of the centre |

and one in the middle near the base.

1 (s). Photuris livida.

Supra ochracea ; prothorace nitido, disco rubricante, indistincte nigro vittato; capite, antennis, palpis, pedibus

et corpore subtus nigro-fuscis, testaceo variegatis. Long. 17 millim. 9°.

Femina, Segmentis quinto et sexto ventralibus pallide testaceis roseo tinctis, unguiculis simplicibus.

Hab. Panama, Volcan de Chiriqui (Champion).

There is only one female specimen of this species in Mr. Champion’s Chiriqui collections,

and it is not possible to say for certain, in the absence of the male, to which section it

belongs; I think, however, the male will prove to have split claws. The general form is

that of P. collaris. The colour of the thorax and elytra is ochraceous yellow, and not

unlike my specimens of P. hectica, Fabr. The elytra are flatter, and like those of the

P. collaris section. The antennz are not very long ; the middle joints about twice as long

as broad, very faintly serrate, black, excepting the underside of the basal joint and the

extreme apex of two or three succeeding joints. The head is excavated between

the eyes.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, March 1885. 2N

274 SUPPLEMENT.

1(c). Photuris ——?

Hab. Guatemata, Pampojilaj, department of Solola (Champion).

A single female specimen of a large pale Photwris, probably belonging to the first

section, with simple claws in both sexes, occurred as above.

Photuris pennsylvanica (p. 59).

To the localities given, add:—Mextco, Monclova in Coahuila (Dr. Palmer), Presidio

(Forrer) ; Britis Honpuras (Blancaneaua) ; GUATEMALA, Volcan de Atitlan (Champion) ;

Panama, Volcan de Chiriqui 2000 to 6000 feet, Bugaba (Champion).

The specimens from Monclova have the elytra dark fuscous, the suture and lateral

margins pale, and with a single, short, well-defined vitta.

11 (a). Photuris frontalis.

Photuris frontalis, Leconte, Proc. Acad. Phil. v. p. 337*; Gorh. Trans. Ent. Soc. 1880, p. 110°.

Hab. Norta America, United States, Georgia!, Texas?.—Panama, Volcan de Chiriqui

2000 to 3000 feet, Bugaba (Champion).

This species and P. mollis, Gorh. (ante, p. 61) are very close allies, and perhaps the

latter is not distinct ; yet, on comparing them carefully again with a larger example of the

latter from Zapote, I find that the thorax is more coarsely punctulate in the examples

from the State of Panama, and these latter are quite inseparable from specimens of

P. frontalis from Texas in my own collection.

11 (s). Photuris crassa. (Tab. XII. figg. 12 ¢, 18 @. var.)

Oblonga, subparallela, parum nitida, ochracea ; elytris interdum nigris variis ; capite, antennis, palpis, pedibus,

corpore subtus, vitta thoracica et scutello nigris. Long. 10 milliim. ¢ @.

Mas. Unguiculis fissis; abdominis segmento quinto macula transversa eburata, subalbida, sexto plus minusve

flavescente, apicali (septimo) apice producto, genitale superante.

Femina. Unguiculis simplicibus, segmento apicali rotundato, apice vix exciso, quinto macula flava nitida, sexto

flavescente.

Hab. Panama, Bugaba (Champion).

Var. a. Ochracea; antennis, palpis, tibiis tarsisque nigris. 9.

Var. 3. Ochracea ; capitis vertice, antennis, labro, geniculis, tibiis, tarsis et abdomine nigris; mandibulis et

palpis piceis.

Var. y. Atra; prothoracis marginibus lateralibus et ore ochraceis.

Var. §. Nigro-fusca ; prothoracis marginibus lateralibus pallidis, disco rufo-brunneo, nigro vittato; elytris

sutura et limbo laterali tenuiter pallide flavis.

Var. e. Ut var. B; elytris autem nigro dimidiatis versus apicem. 9°.

Hab. Muxtco, Tuxtla, San Andres (Sallé); Panama, Bugaba (Champion).

Var. ¢. Ut var. y; elytris autem magis opacis, ad humeros rufescentibus.

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).

MALACODERMATA. 275

This species appears to be excessively variable in colour; so much so that of ten

examples collected by Mr. Champion, no two are exactly alike. The head is black in all

but one, but with the face below the insertion of the antenne yellow. The thorax is

transverse, rather square in front, with the margins hardly at all expanded, and the hind

angles only alittle produced; the disc has a short obsolete channel near the base. Four

examples have no vitta, the others have a broad black vitta, shining in most, but dull

and not so wide in var. 8 and in one from the Volcan de Chiriqui. The scutellum is

black or yellow, varying, as usual, with the mesosternum. The legs are black, or the

femora as far as the knees are yellow; the tibiee and tarsi are always black.

The figures are of a male of the type and a female of the var. e, both from Bugaba.

Photuris ameena (p. 58).

To the localities given, add:—Panama, Bugaba, Volcan de Chiriqui 2000 to 3000

feet (Champion).

Var.? nitida.

Var. Nitidior ; thorace disco, elytris totis, scutello, pectore pedibusque nigricantibus. 3.

Hab. Payama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

An error has occurred in the description of this species and of P. facialis, both claws

being split, not, as I have stated, the external claw only: the fact is, it is not easy to

see the fission of both claws at one time, or unless they are very clean.

The variety is very distinct in colour, but specimens occur in which the elytra have a

pale margin and suture, and some with the legs more or less pale from the same locality ;

the species of this genus appear more variable in these respects than those of Photinus.

This variety, to some extent, bridges over the distinction between P. amena and P. facialis.

The variety with pale margins and suture simulates Photinus volcanicus from the

same region, but is easily distinguished even from the above by the acute and rather

produced angles of the thorax, the prominent head and eyes of the male, &c. It also

occurs at a higher altitude.

Photuris lucidicollis (p. 58).

To the localities given, add :—Panama, Bugaba (Champion).

The few specimens I have seen from Bugaba have the disc of the elytra fuscous, the

suture narrowly and the margins rather widely pale.

Var. sordida. (Tab. XII. fig. 11.)

Photuri lucidicolli quoad formam, thoracem et corpus congruens ; elytris autem dimidio basali tabescente, ad

basin plus minusve infuscatis, dimidio apicali nigro-fusco irregulariter determinato. ¢ Q.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

This curious race or variety of P. lucidicollis was found by Mr. Champion only in

2N 2

276 SUPPLEMENT.

one locality, by the margin of a little stream on the borders of the forest, at 4500 feet

altitude. Several varieties of the species to which I attribute it are already known to

me, the only peculiarity about this variety being that it is so locally confined to one

spot and so nearly constant in pattern. About twenty specimens were collected.

Photuris simplex (p. 61).

One specimen, a single female from Costa Rica, referred to as doubtfully belonging

to this species, is not identical with it, having the claws simple. It is a female of

P. crassa or of a very closely-allied species.

Typical specimens of both sexes of this species have now been sent from the Volcan

de Chiriqui, as well as several which vary considerably, and I am now disposed to unite

P. scapularis with them; the arrangement of the different forms will therefore now be

as follows :—

Photuris simplex, Gorh., ante, p. 61.

Hab. Costa Rica, Volcan de Irazu, Rio Sucio (Rogers, ?); Panama, Volcan de

Chiriqui 5000 to 6000 feet (Champion, 3 ¢ ).

Mr. Champion remarks :—*“ This is one of five species of Lampyride occurring at a

certain altitude (5500 feet) in the dense virgin forest on the Volcan de Chiriqui and

not lower.” But if, as I believe, the varieties mentioned here are conspecific, then

we have simply the effect of a change in altitude producing a well-marked, though

slight, change in colour and sometimes in size; even among these typical specimens

some have the tibie and tarsi black, thus proving their specific instability.

Var.a. Geniculis, tibiis, tarsis et abdominis segmentis quatuor basalibus nigris.

Hab. Panama, Bugaba, Volcan de Chiriqui 2000 to 4000 feet (Champion).

Var. B. Similis varietati a; elytris autem ad apicem nigricantibus; capite et pectore fuscis.

Hab. Panama, Bugaba, Volcan de Chiriqui 2000 to 4000 feet (Champion).

Var. y. Capite, elytris basi, macula humerali, tibiis tarsisque nigris. (P. scapularis, Gorh. ante, p. 62.)

Hab. Guatemata, Cerro Zunil, Panajachel (Champion).

Var. 6. Capite flavo; ore, antennis, palpis, pedibus, corpore subtus (abdominis segmentis tribus apicalibus

exceptis) nigris, elytris maculis duabus subscutellaribus fuscis.

Hab. Mexico, Juquila (Hége).

PHENGODES (p. 63).

Phengodes bimaculata (p. 63).

To the localities given, add:—Panama, Bugaba, Volcan de Chiriqui (Champion).

Two specimens, one from each of the above localities, differ from the type in having

MALACODERMATA. 277

the centre of the thorax black as well as the scutellum; the one from the Volcan

de Chiriqui is smaller, being 14 millim. in length; the other, from Bugaba, is a well-

_ developed specimen, and, in addition to the differences already noticed, has the two

basal joints of the antenne yellow.

Mr. Champion informs me that these examples were attracted to light, the insect

flying with a loud humming noise after the manner of Atractocerus.

Phengodes minor (p. 65).

To the Guatemalan localities given, add :—Sinanja valley (Champion).

Var.? Antennis articulo basali rufo; thoracis lateribus nigris.

Hab. Guatemata, Volcan de Atitlan (Champion).

DAIPHRON (p. 66).

Daiphron ochraceum (p. 67).

To the localities given, add :—Panama, San Lorenzo (Champion).

Var. Thorace nigro vittato.

Hab. Panama, Bugaba, Volcan de Chiriqui 2000 to 3000 feet (Champion).

Three specimens from the State of Panama have the scutellum ochraceous, and the two

which have the thorax with a narrow vitta are also smaller and have their tibie and

tarsi more decidedly black ; in one example the apices of the femora being black as well.

Daiphron proteum (p. 68).

To the localities given, add :—

Var. a. Elytris versus apicem nigro-maculatis.

Hab. Costa Rica (Van Patten).

Var. y.

Hab. Mexico, Presidio (forrer).

CHAULIOGNATHUS (p. 68).

1 (a). Chauliognathus heros.

Chauliognathus heros, Guérin, Rev. Zool. 1843, p. 18%.

Chauliognathus heros, var.?, Waterh. Trans. Ent. Soc. 1878, p. 326’.

This fine species is distinguishable from C. rex (ante, p. 68) by the opacity of the

black apical part of the elytra, and by its extending over half their length, also by the

thorax being larger and transverse, and by the lighter yellow colour of the thorax and

basal half of the elytra.

Hab. Panama, Volcan de Chiriqui (Champion).—Sourn America, Colombia!, Ecuador?

(Buckley, var. *).

278 SUPPLEMENT.

3 (a). Chauliognathus faustus. (Tab. XII. fig. 14.)

Niger ; prothorace opaco, roseo-rubido, subquadrato ; elytris ochraceo-flavis, pallidis, quam thorax duplo latio-

ribus. Long. 17-18 millim. ¢ @.

Mas. Segmento octavo convexo, flavo ; segmentis ventralibus precedentibus albo roseoque marginatis.

Femina. Abdomine nigro, margine et apice flavis.

Hab. Costa Rica (Van Patten); Panama, Volcan de Chiriqui 2000 to 4000 feet

(Champion). °

An elegant and curiously-coloured species: of the species recorded in this volume,

apparently most nearly allied to C. dimidiatus, but with the thorax not so narrow as

usual in that species, and generally of a singular rosy-red colour and spotless. Speci-

mens occur, and that from Costa Rica is one, which have the thorax of the same

yellow tint as the elytra. The scutellum is black, the front edge of the metasternum

(but not the epimera) is yellow, as are the sides and apex of the abdomen, with the

genitalia in the male. Most of Mr. Champion’s examples were beaten from the

withered and still attached leaves of fallen trees in the forest region.

Chauliognathus tripartitus (p. 71).

Chauliognathus janus (ante, p. 71).

Among a series of C. janus collected by Mr. Champion on the Volcan de Chiriqui at an

altitude of 2000 to 4000 feet are two with the elytra wholly black, excepting the extreme

apex, and also two or three agreeing in every respect with C. tripartitus, Chevr. I feel it

necessary therefore to unite them as one species, for which Chevrolat’s name has priority.

Chauliognathus distinguendus (p. 71).

To the Mexican locality given, add :—Huanchinango (7’ruqut).

Three female specimens which I refer to this species do not quite agree with Mr. Water-

house’s description, having the elytra as in C. jucundus, but with the yellow subhumeral

plagee united by a broadish fascia. They are also allied to C. tabulatus; but it is

impossible, from a few females alone, to form an opinion on their specific identity or

distinction.

Chauliognathus togatus (p. 71).

To the Mexican localities given, add :—Ventanas (forrer).

Var. Elytris apice nigris, femoribus basi rufis.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn), Ventanas (forrer).

11 (a). Chauliognathus profundus.

Chauliognathus profundus, Lec. Proc. Ac. Phil. 1858, p. 71’.

Hab. Mexico, Sonora! (Schott), Northern Sonora (Morrison).

MALACODERMATA., 279

This fine species is not unlike the variety of C. togatus with black apex to the

elytra. It is, however, of a clearer and more shining red, and has the head red. The

prothorax, in all the specimens sent by Mr. Morrison, has two thin linear marks

like those in C. bilineatus.

Chauliognathus bilineatus (p. 72).

Var. Elytris triente apicali nigro. ¢. (Tab. XII. fig. 16.)

Hab. Mexico, Saltillo in Coahuila (Dr. Palmer).

Var. Prothorace immaculato.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

Chauliognathus pallidus (p. 73).

To the localities given, add:—Panama, Volcan de Chiriqui 2000 to 6000 feet

(Champion).

Chauliognathus cedemeroides (p. 73).

To the localities given, add :—GvatEmaLa, Rio Maria Linda, Brito, Volcan de Atitlan,

La Gavia, Pantaleon (Champion) ; Panama, Bugaba, Chorcha, Los Remedios, San Feliz,

Tolé, Volean de Chiriqui 2000 to 6000 feet (Champion).

Widely distributed and very abundant.

Chauliognathus exsanguis (p. 74).

To the localities given, add :—Panama, Bugaba, Tolé (Champion).

Var. Elytris versus apicem infuscatis, apice flavescente, margine basali et laterali linea tenui nigra marginatis.

Hab. Panama, Bugaba (Champion).

About a dozen specimens of the variety, with as many of the typical form of this

species, were collected by Mr. Champion. ‘The insect is usually wholly pale testaceous,

with the exception of the antennz, and even these are very pale fuscous; the variety

has some resemblance to the species now described as C. submarginatus.

18 (a). Chauliognathus submarginatus. (Tab. VI. fig. 16, 2.)

Pallide testaceus; elytris albescentibus ; capitis basi; antennis, palpis, thoracis lineolis duabus, elytrorum

margine laterali tenuiter, geniculis, tibiis tarsisque nigricantibus. Long. 63-11 millim. ¢ 9,

Mas. Segmento octavo ventrali convexo, fusco.

Hab. Nicaragua, Chontales (Belt, Janson); Panama, Volcan de Chiriqui 2000 to

4000 feet (Champion).

Although this is undoubtedly very near to C. exsanguis, I feel convinced it is really

distinct. The head is black at the base; the thorax is more orbicular and more

280 SUPPLEMENT.

narrowed towards the front, and is marked with a curved line on each side of the disc ;

and the elytra are not always margined, but have at least the shoulder black. The

Chontales specimens are all of the smallest size, the Chiriqui ones larger.

The figure is taken from a female specimen from Chontales.

18 (zs). Chauliognathus sticticus.

Angustus, pallide testaceus; elytris dilute fuscescentibus ; antennis, palpis, occipitis macula antice bifurcata,,

femoribus externe, tibiis tarsisque nigricantibus; prothorace angusto, longitudinaliter trisulcato, maculis

tribus irregularibus fasciam transversam undulatam preebentibus, nigris, macula intermedia seepe obsoleta.

Long. 9-11 millim. ¢ 9.

Mas. Segmento octavo ventrali convexo testaceo, nitido.

Hab. Panama, Bugaba, David, Caldera in Chiriqui, San Feliz, Tolé, Volcan de Chiriqui

(Champion).

18 (c). Chauliognathus sagittarius.

Pallide testaceus; capitis basi, antennis, palpis, thoracis lineola mediana sagittiformi, genibus, tibiis tarsisque-

nigris, elytrorum marginibus lateralibus in medio infuscatis ; elytris corporis longitudine, postice attenu-

atis. Long. 8-10 millim. @.

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).

Allied to C. submarginatus; but in addition to the difference of the thoracic mark

(which is somewhat wedge-shaped and placed in the middle of the disc, reaching

neither the front nor hind margins), the second and third joints of the antenne are

both very short, the third joint being only a little longer than the second, a character

T have not observed in any of the allied species.

I have only seen three specimens of this species.

Chaliognathus lituratus (p. 74).

To the localities given, add :—Panama, Volcan de Chiriqui (Champion).

Chauliognathus nigriceps (p. 74).

To the localities given, add :—Nicaragua, Chontales (Janson).

A single example from this locality has the front margin of the thorax black.

22 (a). Chauliognathus pardalinus.

Testaceus; elytris fuscescentibus; capite magno ochraceo, maculis quatuor (duabus basalibus, duabus inter oculos)

nigris ; prothoracis littera M, antennis, palpis, femoribus externe, tibiis tarsisque nigris. Long. 113 millim.

3 Qe

Hab. Panama, Bugaba (Champion).

Two specimens only have been found at present of this remarkably distinct

species. It is allied to C. emaciatus in the shape of its head, which is large, and not

suddenly narrowed behind, with two large oblique spots on the base, partly hidden by

the prothorax, and two large irregular but rather squarish spots between the eyes.

MALACODERMATA. 281

The mouth and the tips of the mandibles are black. The thorax has a very distinct

M-like mark. The specimen, which is a male, has the terminal convex segment fuscous.

22 (ps). Chauliognathus corvinus.

Ater, subopacus ; capite parum nitido, mandibulis prothoracisque lateribus flavis. Long. 7-10 millim. ¢ 9.

Var. a. Elytris sordide flavis, apice nigris.

Hab. Guaremata, San Isidro (Champion); Nicaracua, Chontales (Belt, Janson) ;

Costa Rica, Cache (Rogers) ; Panama, Bugaba, Boquete, Volcan de Chiriqui (Champion).

Allied to C. apicalis, but the elytra are not abbreviated as in that species, and usually

wholly black in colour. In the variety with pale ochraceous elytra the degree to which

the black extends at the apex varies, it being sometimes only the extreme apical margin

which is fuscous, at others about one third of their length at the apex which is black.

The lateral margin is very rarely pale; of about two dozen specimens with black elytra

only one from Chiriqui is thus margined. The antenne are shortish and compressed ;

the head black, but yellow in front of the eyes at the origin of the antenne. The legs

and underside are wholly black, with the sole exception of the membranous exposed

portions of the thorax and the bases of the trochanters and tips of the coxe.

I have found males of both colour-forms; the apical convex, or valvular, segment is

black and shining.

Chauliognathus histrio (p. 75).

To the localities given, add :—Muxico (flohr), Cordova, Jalapa, Playa Vicente (Hage),

Presidio, Ventanas (Forrer).

23 (a). Chauliognathus obliquus. (Tab. XII. fig. 15.)

Flavo-testaceus ; occipite, femoribus apice, tibiis tarsisque nigris; antennis, palpis elytrisque fuscis, his vitta

obliqua et de humero ad apicem flava; elytris abbreviatis; alis fuscis. Long. 9-10 millim. ¢ 9.

Hab. Mexico, Cerro de Plumas (Hége).

Head yellow beneath; crown as far as the eyes, and also the cheeks, black; mouth,

antenne, and palpi fuscous; antenne moderately long (7. ¢. two thirds of the body’s

length), thin, and with the fourth to the last joints subequal and longer than the second

and third taken together. Thorax with the sides subparallel, sometimes narrowing a

little to the base, sometimes a little orbiculate, almost quadrate; there is a considerable

depression on the hinder part of the disc, which is often contracted into a sulcus.

Scutellum fuscous and with a yellowish tip, or yellowish. The elytra are fuscous, with

a broad yellow stripe from the shoulder, which it entirely includes, running obliquely

to the suture just before the apex, which is itself yellow. Wings fuscous. The male

has the ventral valvular plate of the same yellow colour as the rest of the body.

A considerable series taken by Herr Hoge.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, March 1885. 20

282 SUPPLEMENT.

23 (s). Chauliognathus forreri.

Flavo-ochraceus, opacus ; antennis, palpis, tibiis tarsisque nigris ; capite inter oculos nigro bimaculato ; prothorace

maculis sex nigris, duabus anterioribus et duabus intermediis cuneiformibus, duabus basalibus transversis.

Long. 11 millim. 9.

Hab. Mexico, Ventanas 2000 feet (Forrer).

I have as yet seen only three females of C. forreri. It is allied to a South-American

species, the Telephorus scriptus of Germar and Castelnau, but is to be distinguished by

the yellow head.

23 (c). Chauliognathus hieroglyphicus.

Sordide flavus, subnitidus ; capite, antennis, palpis, pectore, tibiis tarsisque nigris; prothorace nigro-maculato,

maculis plus minusve confluentibus, scutello elytrorumque basi maculis duabus nigris. Long. 83-

9 millim. g 2.

Hab. Mexico, Guanajuato (Dugeés, coll. Sallé).

This species is in the markings of the thorax allied to the preceding, but it is of a

shorter form, and shining instead of opaque. It is, moreover, very different in many

details. The head is wholly black in all the individuals, eight in number, which I have

yet seen. The thoracic spots are, typically—a wedge-shaped one in the middle of the

front of the disc, an irregular one on each side of the middle of the base (formed of

the transverse basal and two intermediate spots of C. forreri united), and an oblique

one on each side not touching the margin; these spots coalesce in various degrees,

the last to unite being the oblique lateral ones; in one example they are reduced to six

as in C. forreri, but the other differences remain the same. The abdomen is spotted

with black ; the male has the valvular plate yellow.

23 (p). Chauliognathus subulipennis.

Latus, sordide rufus; ore, antennis, palpis, femoribus apice, tibiis tarsisque nigris ; elytris opacis, fuscis, postice

valde attenuatis, margine basali et laterali, epipleurali versus apicem late, et sutura tenuiter rufis; pro-

thorace valido, subquadrato, punctis quatuor sulcoque mediano obsolete impresso. Long. 13 millim. 9¢.

Hab. Mexico, Tehuantepec (Sumichrast).

A species not very nearly allied to any other here described, but which, in the absence

of the male, cannot be very satisfactorily compared. Its broad thick build, with the

elytra strongly narrowed from the rather wide base almost to a point at their apices, is

alone sufficient for its recognition. The antenne are rather long, and I observe that

their third joint is nearly as long as the fourth, instead of being, as in some species of

this section, much shorter. Three female specimens.

25 (a). Chauliognathus —— ?

Hab. Mexico, Puebla (Sallé).

A single female example of a black Chauliognathus with a red thorax is probably

distinct from C. collaris.

MALACODERMATA. 283

25 (s). Chauliognathus exiguus.

Nigro-fuscus nitidus ; ore et epistomate flavis, palpis rufo-piceis, prothorace flavo, disco obsoletius canaliculato

utrinque tumido, postice nigro ; elytris nigro-fuscis, subnitidis, sutura margineque (basi excepta) tenuiter

pallidis ; pedibus pallide flavis, tibiis ad apices tarsisque fuscis ; abdomine fusco, segmentis singulis margine

laterali et apicali pallide marginatis. Long. 6-74 millim. ¢ 9.

Mas. Segmento sexto ventrali valviformi fusco.

Hab. Panama, Volcan de Chiriqui 3000 to 4000 feet (Champion).

Var. Thorace rufo immaculato. @.

Hab. Panama, Bugaba (Champion).

A species which at first sight is more suggestive of a Discodon or Silis than of the

genus to which it belongs. It is not unlike D. divittatwm; but if the long maxille

reaching beyond the mandibles, the relative shortness of the third joint of the antenne

(which is here not nearly so long as the fourth joint), and the claws which in the male

are simple, and in the female the simple mandibles, are noticed, no confusion will arise.

Only three specimens were captured ; the variety from Bugaba is singularly assimilated

to species of Silis (such as S. yocosa and S. amicula) from the same place. The elytra

in this species are (in the male) not shorter than the body, in the female only a very

little shorter.

30. Chauliognathus scutellaris.

Chauliognathus scutellaris, Lec. Proc. Ac. Phil. vi. p. 230!; Trans. Amer. Ent. Soc. 1881, p. 44”.

Chauliognathus basalis, Lec. Col. of Kansas and Eastern New Mexico, p.13°; Trans. Am. Ent. Soc.

1881, p. 444 (nec Lacord.).

Hab. Norvu America, Mexican boundary ', Texas, Fort Bridger, and in the Black

Hills 2, Colorado, and Utah +.—Mextico (Sad/é), Monclova in Coahuila (Dr. Palmer).

I have united these two species, for it seems to me that Leconte has placed too much

reliance on colour. ‘This is often constant for limited localities, but of no use when

extended districts are taken into account.

The smooth and shining dise of the thorax distinguishes this from C. hastatus. The

elytra are always neatly margined; the black portion varies from less than a half to

three quarters of their length. The specimens in Sallé’s collection and one from

Monclova have the thorax wholly yellow; some from Monclova have a triangular

scutellar spot, others have a transverse bar on the base, most have a pentagonal mark

occupying the disc of the thorax. The sides of the sterna are partly yellow. I have

not found any examples in which the breast is wholly black.

31. Chauliognathus limbicollis.

Chauliognathus limbicollis, Lec. Proc. Acad. Phil. 1858, p. 71 *; Trans. Amer. Ent. Soc. ix. 1881,

p. 44°.

Hab. Nortu America, New Mexico, Texas, and Colorado ?2,—Mexico, Sonora ! (Schott,

Morrison), Pinos Altos in Chihuahua (Luchan-Hepburn).

202

284 SUPPLEMENT.

This is the species alluded to under C. hastatus (anted, p.78) as “C. limbatus, Lec.,”

in error.

The discrimination of species of this section is a matter of great difficulty and doubt.

This species and C. hastatus have the disc of the thorax opaque; in C. hastatus the

yellow margin of the thorax is wider, and the scutellar patch is almost always united,

generally broadly, with the apical black. The Sonora specimens, which are typical,

are small, with the abdomen nearly quite yellow; those from Chihuahua are larger,

with each segment black with yellow margins, but they are variable. If, however,

C. hastatus cannot stand, I think that the whole series (including C. pennsylvanicus,

De Geer) will have to be merged into one species.

PODABRUS (to precede the genus Discodon, p. 78).

Podabrus, Fischer, Westwood, Introd. to Mod. Class. Ins., Gen. Synops. p. 27; Leconte, Proc.

Acad. Phil. v. p. 83483 ; Lacord. Gen. Col. iv. p. 8352; Leconte & Horn. Class. Col. N. A. p. 210.

Although Podabrus is widely dispersed in the Nearctic region, we have not had

before to record its occurrence in Central America; and there is no doubt the genus

only just passes the northern border of our country. From the cooler parts of the North-

American continent some forty species have been described; and it is probable that

those of the Old World will not be less numerous when the Asiatic species are as well

known.

1. Podabrus mexicanus.

Niger, parum nitidus, nigro-fuscus; ore, epistomate prothoraceque rufo-testaceis, hoc disco late nigro-fusco

vittato; antennis, palpis et labro fuscis; abdominis margine obscure pallido. Long. 14 millim.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

Head subrugulose towards the base, pitchy black behind the eyes; front, including

the antenniferous tubercles, testaceous red. Antenne and palpi entirely fuscous black ;

the latter have the inner sides of their basal joints pale; extreme edge of the clypeus

and tips of the mandibles blackish. The gular part of the head is yellow, but the

sides of the neck beneath are fuscous. Thorax quadrate, slightly transverse; front and

base truncate, the latter emarginate; sides nearly straight; disc with an obsolete

impressed line. Scutellum dull fuscous. Elytra fuscous or leaden black, very finely

coriaceous.

Underside of the body and legs fuscous black; only the extreme tips of the coxe are

pitchy. The lateral margins of the abdomen are pale but pubescent, and not clear or

distinctly yellow.

Only two specimens have come under my notice. Their larger size will separate

them from most of the species described by Leconte from the United States. They

MALACODERMATA. 285

have a small seventh ventral plate, and appear to me to be males and to pertain to

Leconte’s Section A (Brachynotus, Kirby), the tooth of the claw not being so long as

the claw itself, but acute and adjacent.

DISCODON (p. 78).

Discodon erosum (p. 79).

To the localities given, add:—Panama, Volcan de Chiriqui 2000 to 3000 feet

(Champion).

Two specimens occurred: these differ a little from the type in the colour of the tibie,

which are pale at the base; the antenne likewise have some of the apical joints

ochreous in one of these examples.

Discodon plicatum (p. 79).

To the localities given, add:—Mexico, Cordova, Jalapa (Hége); GuatTeMALa, Las

Mercedes, El Tumbador (Champion).

2 (a). Discodon ——?

Hab. Mexico (Sturm, coll. Sallé).

A single female specimen of a large species somewhat allied to D. plicatum, but

larger and opaque; the thorax transverse and white, and with a wide black vitta. It

is labelled ‘‘ Canth. albolateris, mihi,” in the Sallé collection.

2 (s). Discodon calidum.

Lividum, nitidum ; capitis vertice, antennis, palpis, thoracis vitta integra, scutello, abdomine, geniculis, tibiis

tarsisque nigris. Long.13 millim. ¢ Q.

Mas. Prothoracis margine laterali medio plicato-interrupto, segmento septimo ventrali fisso.

Femina. Antennis articulis tribus ultimis lividis ; prothoracis margine laterali medio leviter sinuato,

Hab. Panama, Volcan de Chiriqui (Champion).

A large species, at first sight very similar toa variety of Sidis varians, but larger, and,

of course, to be separated by the males having the outer claws of the front tarsi with a

laminar tooth-like extension and those of the middle pair bifid. The three terminal

joints of the antenne in the male are fuscous.

Four examples, one male and three females, were collected by Mr. Champion.

Discodon carbonarium (p. 80).

Var. Thorace obscure rufo, disco nigrescente.

Hab. Guatemata, Quiche Mountains, Cerro Zunil (Champion).

The prothorax in this species has a wide shallow depression behind the middle. The

elytra are rather shining, scarcely visibly sculptured.

286 SUPPLEMENT.

Discodon marginatum (p. 80).

To the localities given, add :—Mexi0o, Jalapa, Playa Vicente (Hoge).

The Mexican specimens show more variation than those from Guatemala, the thorax

in most of these being entirely yellow, but in one there is a black spot; the head is

also variable, being black at the base in some, quite yellow in others; all are smaller

and have less infuscate elytra, yet I should not think there is specific distinction here.

Discodon vitticolle (p. 81).

To the localities given, add:—Panama, Bugaba, Volcan de Chiriqui 2000 to 4000

feet (Champion).

Var.? Elytris nigris, callo humerali flavo, pedibus nigris.

Had. Mexico, Parras, Monclova, and Saltillo in Coahuila (Dr. Palmer).

7 (a). Discodon tenue.

Nigro-piceum, parallelum, subnitidum; ore, antennarum basi, prothoracis limbo, pedibusque basi flavis albes-

centibus. Long. 53-6 millim. ¢ 9.

Mas. Prothoracis lateribus infra medium constrictis, disco utrinque bifoveolato, levi; unguiculis intermediis

et posticis externis fissis.

Femina. Prothoracis lateribus trisinuatis, angulis posticis acutis paullo productis.

Hab. GuateMata, Quiche Mountains 8000 to 9000 feet (Champion).

This little species is, in the mode of the constriction of the thorax in the male,

allied to Discodon carbonarium, and, though smaller, reminds one very much of that

species in its general form. The head, however, is less contracted behind in the male ;

the hind angles of the thorax in the female are more acute and prominent, and the

margin immediately above them is deeply sinuate. ‘The mouth and front of the head

is whitish ; the sides and basal margin of the thorax are white, the front margin very

narrowly so, but it is only the reflexed edge that is pale. The coxe, trochanters, and

bases of the femora are pale whitish yellow; the margin of the first four segments of

the abdomen, and the two apical and pygidial plates, are pale yellow.

7 (s). Discodon cinereum.

Atrum, subopacum ; prothoracis limbo laterali tenuiter flavo. Long. 6-7 millim. ¢ 9.

Mas. Prothoracis lateribus infra medium sinuatis, subconstrictis, margine supra medium dentiformi, incrassato ;

unguiculis intermediis et posticis externis fissis.

Hab. Guaremaa, Calderas, Quiche Mountains (Champion), Volcan de Fuego (Salvin).

Very much like the preceding species at first. sight, but wider; the body beneath,

the head, and legs entirely deep black; the antenne with their joints wider and

compressed; the thorax differently notched in the male, its sides rufous; the elytra

more rugose, with faint indications of strie, and of a slight ashy grey tint, from the

fine pubescence with which they are clothed (in many examples, however, this is not

MALACODERMATA. 287

very apparent). Owing to the small size of these two species the claws are not easily

observed without the microscope; they are, however, split as in typical Discoda, and I

have no doubt that they should be placed after D. carbonarium.

Many specimens, which scarcely show any variation, were captured by Mr. Champion

at elevations of from 6000 to 9000 feet.

Discodon flavicolle (p. 81).

To the localities given, add:—Mexico, Guajuco in Nuevo Leon (Dr. Palmer); Panama,

Volcan de Chiriqui 2000 to 3000 feet (Champion).

It seems remarkable that this species has not been obtained at present in the inter-

mediate provinces. The Mexican typical specimens have whiter and less shining

thoraces, and the thorax is also shorter in the Chiriqui specimens; but otherwise I do

not see that they differ.

Taken in some numbers by Mr. Champion. Only one specimen from Guajuco.

Discodon triste (p. 82).

To the localities given, add:—Mexico, Ventanas (forrer); GuaTEMALA, San Gero-

nimo, Sabo, and Purula in Vera Paz (Champion); Costa Rica, Rio Sucio, Volcan de

Trazu (Rogers); Panama, Bugaba (Champion).

Discodon normale (p. 82).

To the locality given, add :—GuvatEMALA, Totonicapam 10,000 feet (Champion).

Var. Elytris sutura margineque flavis.

Hab. GuateMata, Cubulco, Quiche Mountains (Champion).

Discodon perplexum (p. 83).

One female specimen from Misantla (/6ége) is apparently referable to this species ; it

has the abdomen wholly dark, and the sixth ventral segment with an indistinct elevation

in the middle, which is perhaps not normal.

An example (3), possibly a variety, from Playa Vicente (Hége) has the lateral

margins of the elytra broadly yellow.

The species alluded to as being possibly the female, under the name Telephorus

picticollis, is that described at p. 89 of this volume as 7’. /ampyroides, which, however,

is, I now think, quite distinct.

Discodon cleroides (p. 84).

To the localities given, add :—Mexico, Ciudad in Durango 8100 feet (Forrer).

Var. Prothorace limbo laterali tantum nigro.

Hab. Mexico, Toluca (Sal/é).

288 SUPPLEMENT.

The species of Cleride alluded to (p. 84) as closely resembling this species is Colyphus

ventralis ; smaller specimens resemble C. telephoroides.

Discodon photinoides (p. 84).

To the localities given, add:—Panama, Volcan de Chiriqui (Champion).

17 (a). Discodon serricorne. (Tab. VI. fig. 18, ¢ .)

Nigrum, opacum ; elytris amplis; capite subtus et epistomate flavis; prothorace aurantiaco, disco nigricante ;

antennis latis ad apicem attenuatis leviter serratis. Long. 10-12 milliim. ¢ 92.

Mas. Prothoracis margine laterali incisura obliqua parva paullo ante angulos posticos ; unguiculis anticis internis,

intermediis et posticis externis basi lobatis.

Hab. Mexico, Cuernavaca, Oaxaca (Sallé).

Var.? Thorace toto ferrugineo; capite nigro, mandibulis tantum rufis. Q.

Hab. Mexico, Parada (Sal/é).

Allied to D. lugubre. This species is distinguished by its yellow or rusty-red thorax,

which in three specimens is clouded more or less with black, looking as though

scorched. The curious almost semicircular opaque thorax, with the nick near the hind

angles in the male, the claws of the males simply lobed, and the short antenne (which

are also widened and serrate), &c., in these two species, indicate a section of the

present genus.

The figure is of a female from Oaxaca.

Discodon histrio (p. 86).

To the localities given, add :—Muxico, Saltillo in Coahuila (Dr. Palmer, ¢ ).

Discodon difficile (p. 86). (Zelephorus photurinus, Tab. VI. fig. 19, 2 .)

To the Mexican localities given, add :—Yolos, Cuernavaca (Sad/é).

The specimen from the last-named locality has the abdomen (except in the middle),

the femora and coxe of the anterior and middle legs, and the scutellum yellow; the

transverse thorax and bulky build are the same, however, as in the type.

TELEPHORUS (p. 88).

Telephorus lampyroides (p. 89).

To the localities given, add :—-GuaTEMALA, Las Mercedes (Champion, 3 2); PANAMA,

Volcan de Chiriqui (Champion).

The capture of a single male example proves this to be a Discodon, as already antici-

pated. It is the largest species known at present, and not very closely allied to any

of the genus, but may be placed next to D. perpleaum. The specimens from Las

MALACODERMATA. 289

Mercedes are somewhat intermediate in colour between the type and the variety from

Cerro Zunil. One from Chiriqui has the elytra quite yellow.

Telephorus mimetus (p. 90).

To the Guatemalan locality given, add:—Cerro Zunil (Champion).

3 (a). Telephorus (Silis) cephalotes.

Niger, nitidus; capite (macula occipitali excepta), prothorace (disco late nigro-vittato), pedibusque basi flavis ;

antennis sat longis articulis duobus apicalibus pallescentibus ; elytris substriatis, parum nitidis, ad humeros.

indeterminate rufis. Long. 7-74 millim. ¢ Q.

Mas. Prothorace oblongo, lateribus oblique sat profunde constrictis, segmento ventrali septimo fisso.

Femina. Prothorace latiore, lateribus bisinuatis, angulo postico acuto, prominulo.

Hab. Panama, Bugaba (Champion).

Not unlike TZelephorus mimetus, but differing in the shape and structure of

the head and thorax, and in being more shining. The head is yellow, excepting a

spot at the base; the antenne have the two apical joints and half the preceding

joint yellowish. In the male the thorax is elongate, with a deep lateral sulcus

interrupting the margin obliquely; the disc is very uneven, broadly black, shining,

and the base margined. The basal halves of the femora are yellow. The eyes in

the male of this insect are conspicuously wider than the thorax. In the female the

thorax is much more nearly quadrate. There is a very considerable likeness between

this species and Stlis lineata, the females especially being hard to distinguish ; the

males are, however, abundantly distinct, and we have received specimens of both

species taken in copuld.

5. Telephorus (Chauliognathus ?) hereticus.

Nigro-fuscus, subopacus, subdepressus ; ore infra, coxis et femoribus, prothorace (disco excepto), elytrorum

sutura et margine laterali tenuiter abdomineque flavis; tibiis fuscescentibus, tarsis nigris. Long. 7-10

millim.

Hab. Nicaracva, Chontales (Janson); Panama, Bugaba, Boquete, Volcan de Chiriqui

2500 to 4000 feet (Champion).

Head black, shining; epistoma, labrum, and mandibles, as well as the maxille

outwardly and the whole underpart of the mouth, yellow; but the palpi are dark.

Antenne a little compressed and widened in the middle, entirely black. Thorax very

even, nearly quadrate, but with all the angles rounded; the disc blackish at the base,

but this smoky black patch never touches the front margin, where it is only at the

most shaded. Elytra dark or pale fuscous; the suture very narrowly, the margin

less narrowly, yellow. Legs pale, touched with fuscous, especially at the tips

of the tibie and tarsi. ‘The breast and abdomen are fuscous, the latter with paler

margins; the lattér consists of six segments, with a very small seventh concealed within

the small pygidial dorsal plate. At present I can find no difference by which to separate

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, April 1886. 2P

290 SUPPLEMENT.

the sexes. There is a pale variety of this insect which only differs in the fuscous parts

being all very faintly expressed.

The characters of this species are, so far, only negative, and it can only be regarded

as at present unclassified. The specimens are probably all females, and perhaps those

of a Chauliognathus; but the legs are very short for a species of that genus. The

system of coloration is like that of C. histrio.

About forty specimens were collected, chiefly on the Volcan de Chiriqui..

SILIS (p. 91).

Silis lycoides (p. 91).

To the localities given, add:—Mexico, Toxpam, Cordova (Sallé); GUATEMALA,

Sinanja valley, Cerro Zunil (Champion).

Var. Elytris ferrugineis, sutura basi nigra.

Hab. Mexico, Cordova (Sal/é).

The specimen described and figured is a female, and not, as 1 thought possible, a

male. A much more extended acquaintance with the species of this genus found in

Central America enables me to state that I now believe that S. premorsa is the male

of this species. All the specimens recorded by me as S. lycotdes are females, although

differing in the degree of sinuation of the lateral margins of the thorax, and varying in

other characters. The type of S. premorsa is a male from Cerro Zunil; I have seen a

female from the same locality, and this determination may therefore be considered

highly probable, and is confirmed by a male specimen of a Si/is from the valley of the

Sinanja, which appears to be also that of S. lycoides. If this surmise proves correct,

the latter is the name that should be adopted.

The specimens quoted from Mexico, and those from Capetillo, Duefias, and Cubil-

guitz, are to be removed from S. lycoides, the only females which I have seen being

from San Gerdénimo, Purula, and Cerro Zunil. There is a variety, however, of a

female from Cordova, Mexico, with yellow elytra, which, I think, should be assigned to

this species. The other specimens are referable to S. varians. The assignment of the

right females to the males is a difficult problem, even to the collector, as different species

frequently occur together; and the student of this group must beware of confounding

females of species of Discodon with those of Silis. Discodon histrio, occurring in the

same localities, is very likely to be mixed with both this species and S. varians, but

may be known, inter alia, by the nick of the edge of the prothorax being some little

way above the hind angles, which are themselves entire; and this nick is visible asa

faint plication in the female.

S. lycoides, in both sexes, may be at once known from S. varians by the antenne not

being compressed ; the joints are round and cylindrical; in the male some of the inter-

mediate joints, as the sixth to the eighth, have an impressed line, as in some European

Telephori.

MALACODERMATA. 291

1 (a). Silis nodicollis,

Nigro-fusca, parum nitida; capite, prothorace elytrisque ochraceis tenuiter pubescentibus. Antennis brevibus,

compressis, dense pubescentibus, articulo secundo perbrevi, tertio ad decimum oblongo-subquadratis interne

paullo serratis; prothoracis disco infuscato, rugoso, subopaco, circiter medium tuberculis nonnullis irregu-

laribus, lateribus sinuatis, margine bicalloso, reflexo, Elytris distinctius tricostatis. Long. 73-8 millim. 9°.

Femina, Mandibulis fortiter curvatis, abdominis segmento apicali leviter emarginato, in medio lwvigato, nitente.

Hab. Panama, Volcan de Chiriqui, 2000-3000 feet (Champion).

Var. Occipite nigrescente, elytris nigro-fuscis, humeris ochraceo-plagiatis.

Hab. Guatema.a, Capetillo, San Gerénimo, San Juan in Vera Paz (Champion).

An extremely difficult species to apprehend. The type from the Volcan de Chiriqui

is evidently the female of a species of which I have not yet seen the male, and with it

I am obliged to associate several examples from different localities, which are all females,

but agree in having the antenne densely pubescent, and more rigid, and with the joints

more closely connected than usual; at the same time all these specimens have the strongly

bent jaws such as occur in S. odlita, and a small thorax nearly as wide as long, roughened

with granulations and tubercular ridges, so that the whole insect most wonderfully

resembles some of the Lycide; it is nevertheless undoubtedly a Telephorid.

There are specimens of this, or a closely allied species, from Mexico—Juquila

(Boucard), Toxpam and Tuxtla (Sallé), which so nearly resemble S. varians as to be

with difficulty separated, and which, for want of further material, I cannot assert to

be conspecific with or distinct from this species.

Silis varians (p. 92).

Var. Nigra; capite prothoraceque flavis, hoc vitta mediana illo occipite nigricantibus, elytris humero et

margine basali flavis.

Hab. Guatemata, Dueiias, Torola (Champion).

Several very closely allied species have to be discriminated here; the type of

S. varians is a male example from San Joaquin. The specimens from Teleman I now

separate under the name of S. combusta. The specimens from Panima with some

others, including a large series collected in the State of Panama, I describe further on

as S. serrigera. ‘The characters given will suffice for their distinction, S. varians being

smaller than either of its allies on the average, and among other characters I observe

that the divided subapical segment of the abdomen appears to gape more than in other

allied species, the fourth joint of the tarsi has its two lobes free, the antenne are only

moderately serrate or flattened, and are shorter than in S. serrigera.

2(a). Silis plateroides,

Ochracea, leviter pubescens; elytris costatis; occipite antennis, tibiarum apicibus tarsisque nigris, abdomine fusco;

prothorace subquadrato, disco insequali, nitidulo, margine laterali ante angulos posticos leviter plicato.

Long. 10 millim. 9?

Hab. Panama, Bugaba (Champion).

sane ( 2P 2

292 SUPPLEMENT.

Allied to S. varians, but the prothorax is more quadrate, and not distinctly nicked

before the hind angles. It is also abundantly distinct by the colour of the body beneath

and of the legs, the absence of any vitte: on the thorax, &c. Only three specimens

have yet come under my notice, and they are so like Plateros rubricatus as probably to

have been overlooked for it.

2 (s.) Silis diversa.

Testaceo-flava ; occipite, antennis (articulis tribus apicalibus exceptis), tibiis, tarsis, elytrorum dimidio apicali

abdomineque nigris ; mandibularum apicibus palpisque picescentibus. Long. 9 millim. 9.

Hab. Panama, Bugaba (Champion).

This species has a very great resemblance, and is, no doubt, very nearly allied to

S. serrigera; but it is even more developed than the large females of that species from

the State of Panama, and is wider behind, with the femora and knees yellow. The

thorax is also entirely yellow, and does not possess any notch at the hind angles; the

margin is a little thickened near the middle. The antennz are widened in the middle,

serrate and compressed as in S. varians, but with three joints at the apex yellow. The

base of the head does not have a spot, but is indeterminately black between the eyes.

The posterior part of the metasternum and the hind cox are partly black.

Only two specimens occurred.

2, (c). Silis serrigera. (9. varians, var. Tab. VI. fig. 1.)

S. varianti proxime affinis, flavo-ferruginea ; antennis (articulis duobus apicalibus exceptis), occipite, macula

basali capitis, thoracis linea mediana integra, scutello, sutura ad basin tenuiter, corpore subtus pedibusque

nigris ; prothorace oblongo, antice subangustato, margine basali truncato, angulis posticis minute excisis.

Long. 8-9 millim. ¢ 9.

Hab. GuateMALA, Chacoj, Panima (Champion, 3); Panama, Bugaba, Caldera in

Chiriqui (Champion).

Var. Elytris triente apicali nigris. ¢ 2.

Mas. Unguiculis anticis externis, basi dente angulari laminata; segmento ventrali sexto fisso; antennarum

articulis secundo ad decimum lineola nitida impressa.

Hab. Panama, Volcan de Chiriqui 2000 to 6000 feet, Bugaba (Champion).

The characters which separate this species from S. varians are the longer antenne with

more acute serration of the intermediate joints, and with two joints at the apex yellow,

this being most conspicuous in large females (I have seen examples in which the ninth

joint is also partly testaceous); the longer thorax with a similar, but less deep, notch at

the hind angle in both sexes, and the longer elytra, which are not so costate, the

nervures only being faintly raised. The males are rarer than the females among the

rather large series of specimens collected by Mr. Champion; but I have found three or four

of the variety with black tips to the elytra, and there are two males, one from Panima

and one from Caldera, of the type form, only that the latter differs in having the legs

MALACODERMATA. 293

yellow at their bases; this latter character seems usual in the males, in which sex the

legs are also longer. It will be observed that I have noticed among the characters of

the males of this species the impressed bright line which is present in the concave

surface of the widened joints of the antenne. This character, although I had not

noticed it before, is common to other species, as S. varians, S. lycoides, &c.; and on

examination I find it is faintly present in some species of Discodon, as D. nigripes and

D. fiavicolle, and it is known to occur in some European Telephori.

2 (p). Silis combusta.

Silidi variant iterum persimilis, nigro-fusca, parum nitida ; capite (macula occipitali excepta), prothorace (linea

mediana nigra), elytrorum dimidio basali, coxis et trochanteribus, femoribus interdum exparte, ferrugineis ;

elytris subparallelis, costatis. Long. 7-74 millim. ¢ 9.

Var. a. Elytris totis ochraceis. ;

Var. 3. Hlytris nigro-fuscis, plaga humerali tantum rufa.

Mas. Prothorace oblongo, antice rotundato, lateribus prope medium, sat profunde, obliquiter incisis; unguiculis

anticis externis basi lamello dentiformi; antennis magis elongatis.

Hab. Guatemata, Teleman in the Polochic valley (Champion).

This species was confounded by me, before I had seen the males, with the type of Silis

varians, and it precisely resembles that species, and the varieties probably correspond.

It may easily be distinguished in the male sex by the oblique constriction of the thorax,

which is like that of many species of Discodon; the tooth or rather lamella of the front

claws is, however, like that of the first section of Sz/és in this work. The antenne of

the male are longer, and their third to eighth joints are not expanded as they are in

those of S. varians; they are however marked with impressed lines, as in that species,

but not so distinctly, and the length of the intermediate joints is fully twice their width.

With regard to the females, the antenne are more expanded and shorter than in the

males, but their thorax is more shining than in what I take to be the females of

S. varians; the hind angles have a slightly emarginate notch parallel to the sides.

All the specimens from Teleman referred to under S. varians should be assigned to

this species. I have not at present seen it from any other locality.

Silis nigrita (p. 93).

To the localities given, add :—GuatEmaLa, Zapote, San Isidro, Las Mercedes, Sinanja

valley (Champion); Panama, Bugaba (Champion).

The locality ‘‘Quiche Mountains” should be erased, the specimen from thence

pertaining to S. sepulchralis.

4 (a). Silis ocularis.

Nigra, nitidula; ore, antennarum basi, prothorace pedibusque rufis. Long. 4 millim. 6.

Mas. Oculis subglobosis, prominentibus; prothoracis margine laterali in medio hamato, juxta angulum posticum

bilobato.

Hab. Guatemata, Paraiso, El Reposo (Champion).

294 SUPPLEMENT.

This little species is near S. négrita in form. The thorax is quite red, and is differently

excised; the antenne are very long, nearly as long as the body, and the eyes are very

globular and prominent, with the head excavated between them, and shining black on

the crown. There being but two male examples, I cannot give a very complete descrip-

tion, but it is evidently a distinct species.

4 (s). Silis sepulchralis.

Atra, subopaca; prothoracis margine laterali antice flavo; elytris subcostatis, intervallis crebre subrugose-

punctatis; antennis pilosis. Long. 54-63 millim. ¢ 2.

Mas. Prothoracis lateribus autice flavis, ante angulos posticos profunde oblique incisis, angulo postico lamina

nigra, apice angulariter excisa, instructo. .

Femina. Prothoracis lateribus flavis, sinuatis, ante angulos posticos acutos, minute excisis.

Hab. Guatemata, Totonicapam 10,500 feet, Quiche Mountains 8500 feet (Champion).

This seems essentially a mountain species, the examples sent having been captured

in the pine-forests at very high elevations, and is readily distinguished by its nearly wholly

black colour and opaque and finely rugose surface; the notching of the sides of the

thorax in the male is peculiar, the yellow portion of the sides ends in a prominent

acutely angled projection, below which at the hind angle itself is a flat lamina, black,

and with its apex notched; the angle thus appears bimucronate in some aspects, and

it rises.

I have only seen one specimen from the Quiche Mountains; there were, however,

six, including one female, taken by Mr. Champion at Totonicapam.

This would not strictly come within Section I.B, by the definition, but the structure

is really the same as that in S. hematodes, but that in that species the upper portion

of the margin does not project so much above the deep notch, and that the “lamina”

is there a little above the hind angle and is only just reflexed, and only notched in

some specimens.

Silis hematodes (p. 93).

Var. Femoribus (genibus exceptis) rufis.

Hab. GuatemaLa, Calderas 6000-7000 feet (Champion).

Three males of this variety have also their elytra more closely and finely coriaceous,

but in this respect are similar to the specimens I have seen from Las Mercedes and

Cerro Zunil. Since my description of this species was penned, quite a little series of

species with red thoraces, and all closely allied and difficult to separate, have been

sent. Typical S. hematodes are from a lower elevation, from Capetillo.

6 (a). Silis melanocephala.

Atra, nitidula ; ore pallido, mandibulis apice picescentibus, prothorace rufo; antennis longis articulo secundo

perbrevi. Long. 63 millim. ¢.

Mas. Oculis prominulis, prothoracis margine laterali juxta angulos posticos, inciso.

Hab. GUATEMALA, Capetillo (Champion).

MALACODERMATA, 295

Though I have only seen one specimen, a male, of this species at present, I have no

hesitation in pronouncing it distinct—the chief characters being its black head and

long antenne ; the very short second joint of the latter (which is here not longer than

it is broad), but especially the position of the nick formed by the plication of the margin

of the thorax, which in this and in S. atripennis is placed nearer the hind angle than in

S. hematodes.

5 (z). Silis aurita.

Atra, parum nitida; capite, prothorace et scutello rufis; prothoracis margine laterali postice Jamina submar-

ginali, parum ampliato; elytris creberrime punctatis, substrigosis. Long. 53 millim. 9?

Hab. Costa Rica, Volcan de Irazu (Rogers).

This species, of which there are only two specimens which I can with certainty

assign to it, is certainly distinct from any of its allies here described, but it is very

difficult to define the differences in such a manner as to cause it to be easily recognized.

The head and thorax are bright red; the antennz black, their second joint about half

as long as the third; the thorax has a tumid convexity on each side of the central

depression, and it appears narrowest in front, owing to the margin being plicate and

thickened behind. There are two other specimens from Irazu taken by Rogers which

may belong to this species, but which have the thorax nearly quadrate, without any

process ; these have the scutellum black, but as I cannot determine their sex I prefer not

giving any decided opinion upon them; they are more nearly allied to S. appendicularis,

with which the present species has clearly some affinity as well.

5 (c). Silis transfixa.

Nigra ; capite, antennis, palpis, prothorace, scutello, et coxis anticis, lete aurantiaco-rufis; coxis intermediis et

posticis ad apices, trochanteribus, tibiis tarsisque flavis ; elytris subopacis, confertim coriaceis, undique

tuberculis minutis seriatim ornatis, vel nitidulis, crebre subrugulose-punctatis. Long. 54-83 millim. g 9.

Mas. Prothorace suborbiculato, infra medium oblique inciso.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

This species is allied to 8. hwmatodes, but differs in many respects ; the head is wider,

and the antenne and all the other cephalic appendages are red. The thorax of the

female is more oblong and is obliquely constricted on the sides; that of the male

appears to present a curved thin acute spine on the anterior side of the nick, but this

cannot always be seen. The legs are black, with only the extreme base red ; usually

only the front pair have any part of the femora red.

A small series was secured by Mr. Champion.

5 (p). Silis fulvipes.

Flavo-testacea, parum nitida; elytris griseis; pectore abdomineque infuscatis, segmentis apicalibus fulvis.

Long. 53 millim. ¢ Q.

Mas. Prothoracis lateribus minute incisis, segmento septimo veutrali fisso, pygidialis apice angulariter exciso.

296 SUPPLEMENT.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Very nearly allied to 8. transfixa; smaller, and with the elytra grey, and the legs

entirely red; also distinguished by the fulvous apical ventral and dorsal segments, and

by the narrow pygidial plate being notched, thus exhibiting two points at the apex.

Head wide, eyes prominent, antenne and mouth-organs entirely red. Thorax sub-

quadrate, a little angularly widened at the sides, where, in the male, it is nicked a little

below the middle.

A small series was captured by Mr. Champion.

Silis eroides (p. 94).

To the localities given, add:—GuatTemaLa, San Gerénimo (Champion); Panama,

Bugaba (Champion).

Specimens of both sexes were captured at Bugaba ; the males of these have the edges of

the thorax more deeply laciniate,and the hind lobe longer and more developed than in the

type; the thorax therefore looks less orbiculate, and the incision being hairy and compli-

cate they are not easily recognized; the antennz are very wide in the middle, the second

joint is very short, and all the joints are hairy. ‘The specimens from Cordova, of which

I have only seen two, one of which has yellow elytra with only the suture dark at the

base, are not satisfactorily connected with this type. Both are, I think, females, and

should, I believe, be referred to Silis lycoides. [Cf. note upon that species, Suppl.

antea, p. 290. |

Silis lineata (p. 95).

To the localities given, add :—Panama, Volcan de Chiriqui, Bugaba (Champion).

Typical male specimens have the thorax not orbiculate, but elongate, with the margins

deeply sinuate; but the form and mode of plication does not seem quite constant.

Many examples, mostly females, of a variety with yellow elytra with a dark sutural

line at the base, and which seem more pubescent than others, occurred at 2500 to 4000

feet altitude ; these closely mimic Plateros ochraceus, while some from Bugaba, as well

as from the higher altitudes of Chiriqui, almost as nearly mimic P. bugabensis, and

these have the elytra a little wider behind than usual, thus completing the illusion.

9 (a). Silis lineola.

Subparallela, nitida, nigro-fusca ; capite (macula verticali excepta), prothorace (vitta mediana nigra), humeris

pedibusque basi, flavis ; elytris nitidulis, crebre subtiliter rugosis. Long. 5-6 millim. ¢ 9.

Mas. Prothorace suborbiculato, margine laterali medio inciso ; segmento ventrali sexto fisso ; unguibus externis

basi triangulariter lobatis.

Hab. Guaremaa, Chiacam, Cubilguitz, San Joaquin, Panima, Teleman (Champion) ;

Panama, Bugaba (Champion).

Var. Elytris basi (sutura excepta) flavis.

Hab. Mexico, Jalapa (Hoge).

MALACODERMATA. 297

This species is a very close ally of S. lineata, and is perhaps not quite satisfactorily

distinguished from it. It is, however, in the male characters that the chief difference

lies, the thorax in the present insect being of the form of the species of Section I. 8, in

which I have placed S. lineata. But in the typical males of S. dineata the thorax

is not orbiculate, but is doubly notched, and has the minute projection at the hind

angles which is found in the first Section of this genus, and rather resembles that of the

first Section of Discodon. In addition to this sexual difference S. lineola is a narrower,

more shining, and less pubescent insect; it has never wholly yellow elytra as have the

Chiriqui specimens of S. lineata; and the antenne have not the yellow apical joints.

9 (x). Silis oblita.

Nigro-fusca, nitida, pilosa ; ore, antennarum articulis tribus vel quatuor ultimis, prothorace pedibusque pallide-

testaceis, his tibiis tarsisque anticis, illo vitta discoidali, plerumque ad basin tantum distincta, nigricanti-

bus. Long. 6-7 millim. ¢ Q.

Mas. Oculis magis prominulis ; prothorace suborbiculato, margine antice sinuato, infra medium plicato, minute

inciso, angulo postico leviter producto.

Femina. Mandibulis fortiter curvatis ; prothorace antice rotundato, lateribus leviter bisinuatis.

Hab. Panama, Volcan de Chiriqui 2000 to 6000 feet, Bugaba, Boquete 4200 feet

(Champion).

Head black ; mouth and antenniferous tubercles pale ; palpi fuscous, pale at the base ;

eyes moderate, subglobular in the male, rather prominent in the female, owing to the head

being suddenly contracted behind. Antenne fuscous or black, with three, sometimes

four, nearly white joints at the apex: they are pubescent, with erect hairs, a character

which will separate this species and S. ardua from S. paupercula; their second joint short,

not so much as half of the length of the third joint, but not so short as in S. ardua ; in

the males this joint isnot more than one third of the length of the third joint. Thorax as

in males of Section I. B, but with the plication and sinuation minute ; it is nearly the same

as in S. ardwa, and very different from that of S. paupercula; in the female it is trans-

versely subquadrate, the anterior angles rounded, the sides faintly bisinuate with a minute

anterior callosity, the hind angles right-angles, with a minute production of the basal

margin. Elytra finely, subrugosely, and very closely punctate, only showing faint

indications of longitudinal lines; black with a grey, almost violet tint; occasionally the

shoulder has the callus slightly pale. Legs, including the coxe, testaceous, but the front

tibiee and all the tarsi at their claw-joints are fuscous. ‘The apex of the abdomen is pale.

This is one of the most difficult species in this group to make out ; closely resembling

as it does several others, attention must be paid, in the first instance, to the relative length

of the second joint of the antenne and their pubescence, characters which separate a

little group of the genus. The bent mandibles of the females I have as yet only

observed in this species and S. ardua, but it will probably be found in some others.

S. nigrita is difficult to separate, the males being very close to those of this species.

I have seen single specimens of an insect probably identical with this species from

BIOL, CENTR.-AMER., Coleopt., Vol. III. Pt. 2, Aprid 1885. 2Q

298 SUPPLEMENT.

Jalapa (Hége) and San Juan in Vera Paz (Champion), but as they are doubtfully

identified I think it better not to assume hastily that they are so.

9 (c). Silis ardua.

Nigro-fusca, parum nitida; prothoracis margine laterali, elytrorumque limbo toto, ore pedibusque pallidis, his,

tibiis tarsisque fuscis. Long. 6 milliim. ¢ Q.

Mas. Oculis magis prominulis ; prothorace orbiculari margine sinuato, medio plicato interrupto.

Femina. Mandibulis fortiter curvatis; prothorace antice rotundato, basi truncato, lateribus leviter sinuatis, et

ante angulos posticos minute excisis.

Hab. Panama, Volcan de Chiriqui 2500 to 6000 feet (Champion).

Distinguished from S. paupercula, which it very closely resembles, by the antenne

having the second joint very small, about or less than a fourth of the length of the

third, by the disc of the thorax being dark, and by the form of the thorax in the male.

From 8. oblita, to which it is more nearly related in structure, by the colour of the

thorax, by its being less shining and more pubescent, and by the antennz being quite

fuscous or black. About a dozen examples of this species were collected by Mr.

Champion, mostly at the higher elevation.

9 (p). Silis sicula.

Atra, parum nitida ; ore pallido; prothorace rufo, nigro-limbato, disco profunde sulcato et utrinque tumido ;

elytris subopacis, creberrime subrugulosis, punctis hic illic seriatis. Long. 6 millim. @.

Mas. Latet.

Femina. Mandibulis basi subdentatis, supra dentem fortiter incurvatis.

Hab. Guatemaa, Purula (Champion).

Head black ; mandibles, mouth, and epistoma yellow ; antenne shortish, intermediate

(third to ninth) joints not more than twice as long as wide; palpi dark, only pale at

their bases. The thorax is rather small, and its margins irregular, bisinuate before the

hind angles, which are a little acute and prominent. The antenne, legs, and underside

of the body are dark fuscous, nearly black.

There are several species, of which this is one, of which the females have the mandibles

strongly bent and subdentate at their bases, such as S. oblita, S. ardua, and S. nodicollis;

from the former of these its dark legs and antenne, and from both the latter the colour

of the thorax and its form, separate it. At present 1 have only seen two females which

I can assign to S. sicula.

9 (x). Silis proxima.

Silidi oblitee valde affinis, nigro-picea, subnitida, parum pilosa; prothorace pallide-testaceo, nigro vittato, trans-

verso, angulis anticis rotundatis, posticis subrectis, margine laterali (feminw) ante medium minutissime

plicato ; pedibus flavis, tibiarum apicibus tarsisque fuscis ; antennarum articulo secundo brevi, quam tertius

triplo breviori. Long. 5 millim. g?9.

Mas? Prothorace margine laterali antice tuberculari prominulo, infra tuberculum minute inciso, angulo

_postico acutiusculo.

Hab. GuatemaLa, Chiacam (Champion).

MALACODERMATA. 299

A species from Chiacam, of which there are four or five females, and one male some-

what doubtfully associated with them, which cannot be referred to 9. oblita, for the jaws

are not suddenly bent as in the female of that species; it is less hairy, the antenne

have not the pale apical joints, and are, moreover, shorter, with shorter | joints.

The male, which is from the same locality, is paler in colour, with a brighter orange-

coloured thorax, the margin of which projects in front of the nick, but yet not as in

S. paupercula.

9 (r). Silis paupercula.

Sordide nigro-fusca, sericeo pubescens; ore et epistomate, prothorace (vitta mediana excepta), antennarum

basi, elytrorum sutura et margine laterali pedibusque pallide-testaceis. Long. 5 millim. ¢ 9.

Mas. Prothorace, margine laterali antice tuberculari plicato, in medio oblique constricto.

Hab. Gouaremata, San Juan in Vera Paz (Champion); Panama, Bugaba, Volcan de

Chiriqui 2500 to 4000 feet (Champion).

Var.? Prothorace nigrescente, limbo laterali pallido.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

There are a series of little species, of which this is one, occurring together and very

difficult to separate from each other; I distinguish S. paupercula by the thorax in the

male being formed very much like that of S. pauwil/a, and it may perhaps be necessary

eventually to remove it with that species toa new genus. The thorax is not orbiculate,

and not “nicked,” but viewed from behind with the body towards one, the front part of

the margin projects on each side; this character will separate it from Stlis lineata. The

head is wide with projecting eyes; the antenne two thirds as long as the body, free

from the erect pile observable in those of S. oblita and S. ardua, and their second joint

more than half as long as the third.

The variety almost exactly simulates Photinus diurnus, which occurs on the Volcan

de Chiriqui at various altitudes up to 8000 feet, and it is remarkable that in this

variety the antenne are wholly fuscous, as they are in the Photius, and the tibie and

under surface of the body are also dark. I have often had occasion to remark that the

varieties of many species, which occur either in higher latitudes or in higher altitudes,

tend rather to melanism than those which from living in hotter regions are perhaps

forced to seek the shade more, and hence from living in retirement, in rolled-up withered

leaves of fallen trees, or in chinks and holes during the hot sunshine, are simply brown

or even white. The brown species of Chauliognathus, Mr. Champion informs me, have

this habit of secreting themselves in dried leaves of a similar tint.

9 (cg). Silis amicula.

Nigro-fusca; antennarum articulo basali, ore, epistomate, prothorace, pedibus (tibiarum apicibus tarsisque

exceptis) elytrorumque sutura et margine laterali testaceis ; abdomine segmentis singulis pallide marginatis,

segmento apicali testaceo. Long. 43-5 millim. ¢ Q.

2Q2

300 SUPPLEMENT.

Mas. Prothoracis margine laterali antice plicato-sinuato, lamina parum prominula instructo.

Femina. Prothoracis margine laterali antice sinuato, leviter plicato.

Hab. Panama, Bugaba, David (Champion).

Head black, with the exception of the mouth and underside ; antenne very slender,

not so long as the body, usually fuscous, with one or two joints pale at the base, or pale

and becoming infuscate in the last four or five joints. ‘Thorax reddish yellow, paler at

the margins; quadrate in the male, transverse in the female. Legs pale; tibie and

tarsi infuscate, the former sometimes pale. Elytra dark fuscous, slightly shining,

margined with pale (almost white) testaceous, except at the base. Sides of the abdomen

and each segment at its apical margin almost white ; the apical divided segment in the

male reddish yellow.

This little species is near S. paupercula (in colour it approaches S. albicincta), but it

is more parallel in form and less vividly coloured than that species. The plication

of the thorax is different, and more like that of Plectonotum; but the hind angles

are not cut out, they are nearly rectangular; nor is the margin reflexed or thickened,

excepting at the point where the fold takes place.

Eight specimens, all from Bugaba.

9 (x). Silis nigroplectrum.

Nigro-picea, nitida ; prothoracis elytrorumque marginibus albis, abdominis segmentis singulis pallide marginatis ;

pedibus piceis, genibus pallidis. Long. 4 millim. 9.

Femina. Prothoracis margine laterali antice plicato, plicula subtuberculari nigra.

Hab. Panama, Volcan de Chiriqui 2500 to 4000 feet (Champion).

There are only two females of this species, but it is clearly distinct from S. amicula,

to which it is allied, and from which it is distinguished by its darker colour and the black

disc of the thorax. The black fold in the margin of the thorax may of course not be

always so coloured; but it appears to me that it probably will prove to be a good

character, as this structure where it occurs is usually of a darker red or brown colour

than the rest of the margin.

9 (1). Silis chalybeipennis. (Tab. XII. fig. 18.)

Nigra ; capite, antennis, palpis, scutello prothoraceque lete rufis; elytris nigro-ceruleis, nitidis. Long. 7-73

millim. ¢ 9.

Mas. Prothoracis margine laterali ultra medium plicato, angulo postico profunde exciso.

Hab. Panama, Volcan de Chiriqui 4000 to 8000 feet (Champion).

A very beautiful and distinct species. The head, thorax, scutellum, and antenne of

a bright orange-red, and shining. The thorax is transversely subquadrate, with the

front angles rounded off, the margins a little expanded and elevated; the anterior

plication takes place a little behind the middle, the part below being a little thickened.

MALACODERMATA. 301

The elytra are of a dark steel-blue. The female is similar to the male, with the excep-

tion that the excision of the hind angles is less deep.

About a dozen examples were collected by Mr. Champion, one from the altitude of

8000 feet ; all were found on leaves in the dense virgin forest.

12 (a). Silis jocosa.

Rufo-testacea; elytris nigris, basi excepta albo-cinctis ; metasterno abdomineque nigricantibus, hoc segmentis

singulis albo-marginatis. Long. 53-63 millim. ¢ Q.

Mas. Prothoracis margine laterali processu duplici lamellato, anteriore cultriformi, apice ciliato, posteriore

contorto, disco foveola profunda punctiformi impresso.

Femina. Prothoracis disco postice leviter impresso, angulo postico minute exciso.

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

This species was recorded (anté, p. 96) asa variety of 8. albicincta, which it very

much resembles; I have, however, distinguished it now for the following reasons :—

The eyes are always much smaller in both sexes; the head, antenne, and legs are

red; the elytra in the male are more expanded behind; the processes of the thorax of

the male are much more developed, and more distorted and confused. The mandibles

of the female are very long and thin, evenly curved, not suddenly bent.

A considerable series was taken by Mr. Champion.

12 (zs). Silis torticollis.

Nigro-fusca ; ore prothoraceque fulvo-testaceis, hoc medio szepe nigricante. Long. 5-53 millim. ¢ Q.

Mas. Prothoracis lateribus foliaceo-contortis, auriculatis, antice nigricantibus.

Femina. Prothoracis lateribus lamina subtuberculari parum elevata instructis.

Hab. Panama, near the city, San Miguel in the Pearl Islands (Champion).

Belonging to the same section as S. dilacerata, but wholly distinct by the very

curious complicated structure of the prothorax of the males. The anterior lamellar

process here takes the form of a hood, curving over two dentiform lamellar processes

behind. Anything more complicated in the way of a twisted margin can hardly be

conceived. Females of this section of Stlis may easily be recognized by their

antenne, which in this group are rather short and flat and finely serrate in both sexes.

The thoracic fovea is present in the male as a longitudinal furrow; in the female the

disc is only somewhat uneven and tumid.

A small series was captufed by Mr. Champion in the Pearl Islands, and one speci-

men near the city of Panama.

12 (c). Silis festiva.

Rufo-testacea, nitida; capite elytrisque nigris, his (basi excepta) albo-marginatis, illo ore rufo, pectore abdo-

mineque fuscis. Long. 53-6 millim. ¢ 2.

Mas. Prothoracis lateribus processu duplici lamellato, anteriore angulato hamato, disco foveola profunda

punctiformi impresso ; oculis magis globosis.

Femina. Prothoracis disco postice leviter impresso.

302 SUPPLEMENT.

Hab. Panama, Volcan de Chiriqui (Champion).

Intermediate, as it were, between S. aldicincta and S. jocosa. It is distinct, however,

from the former by the red antenne and legs, from the latter by the black head and

larger eyes. Antenne rather long and thin for a species of this section, very finely

pilose, their second joint twice as long as broad, and rather more than half as long as

the third. Head black, the palpi and mouth clear red; the eyes in the male are

globular and prominent. The thorax is transverse; in the male it is more deeply

lacerated and amorphous at the sides than even in S. dilacerata, the anterior process’

forming a sort of hook, and the posterior one is spine-like and projects over the

shoulders; in the female it is widest behind, very slightly depressed, and the hind

angles are somewhat thickened and reflexed. The scutellum, suture, and the lateral

and apical margins of the elytra are white; and in this species the margin is flat and

expanded towards the apex in the male. The legs are entirely red, and the subapical

or divided segment of the abdomen in the male is reddish.

A good series of this species was collected by Mr. Champion.

S. festiva was at first considered by me to be a variety of S. albicincta, and is so

recorded under that species at p. 96 of this volume.

12 (p.) Silis ludicra.

Nigro-fusca, parum nitida ; prothorace, ore, scutello, elytrorum marginibus, antennarum articulo primo pedi-

busque, flavis, his, tibiis tarsisque fuscis; abdominis segmentis singulis margine apicali, apicalibusque

totis flavis. Long. 5 millim. ¢.

Mas. Prothoracis margine laterali processu duplici laminato, anteriore hamato; extus pilosa, disco in medio

fortiter fossulato.

Hab. Mexico, Presidio (Forrer).

In such a difficult genus as this appears to be it is always unsatisfactory to describe a

species from asingle male. In this case there is little doubt however that the specimen

described pertains to a distinct species. It is nearest to S. festiva, but in addition to

the dark antenna, tibie, and tarsi, the whole form (and especially the femora) is more

robust. The anterior process of the thorax while it hooks round in something like the

manner of that of S. festiva, has not the apical twisted bend so noticeable in that

species, and does not leave so much space open between itself and the posterior one,

but appears rather to rest uponit. In the single male example before me the fossa upon

the disc is represented by a double punctiform impression, with a carina between, but

this may only be accidental. ‘There is, indeed, a female specimen from Jalapa (Hége)

which may pertain to this species, and which I cannot associate with any other; but

this has the legs dark and slightly built, and the elytra have the suture concolorous,

and the lateral margins only very narrowly pale.

There is also one male from San José on the coast of Guatemala, which I think

very doubtfully may be the same species.

MALACODERMATA. 303

15. Silis longicornis.

Nigro-fusca ; ore prothoraceque flavis, abdomine fusco, flavo-marginato, vel flavo apice fusco; antennis quam

corpus longioribus, articulis leviter serratis. Long. 8 millim. ¢.

Mas. Prothorace subquadrato, margine laterali pone medium leviter plicato vix interrupto.

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

This species bears a very puzzling aspect, for, unlike other members of the genus, the

thorax, although the specimens are males, has scarcely any trace of the usual folding

or excision of the thoracic margin. The great length and slight serration of the

antenne is, however, similar to that of the European species. The external claws

appear thickened and laminate.

Three specimens from the Sallé collection are all I have seen.

16. Silis sallei.

Fusca, nitidula; capite infra, ore, epistomate, et verticis macula, pallide-testaceis ; prothorace testaceo, lineis

duabus sublateralibus nigris ; coxis et femoribus testaceis, his externe, tibiis tarsisque fuscis. Long. 63-7

millim. ¢ 9.

Mas. Prothoracis disco lateraliter oblique sulcato, margine inflexo, tenuiter plicato.

Hab. Mexico, Cordova (Sai/é).

Antenne of the male about four fifths of the length of the body, those of the female

shorter, fuscous, second joint very short, third and following joints subequal, very

finely pubescent; apices of the mandibles and palpi pitchy. Thorax longer than wide,

without any nick at the sides in the males, but, examined from the front, the margin

runs downwards and backwards, so that the hind part of the black line becomes

tubercularly raised ; the inflexed margin is yellow. Scutellum and elytra fuscous, the

latter and the legs finely pubescent ; abdomen fuscous.

There are four specimens of this species in Sallé’s collection, two of each sex.

17. Silis coarctata.

Fusca, nitidula; capite prothoraceque aurantiaceis, scutello flavo; elytris nigris, crebre subtiliter subrugose-

punctatis ; pedibus nigris, coxis anterioribus flavis. Long. 5 millim. ¢ Q.

Mas. Prothoracis margine laterali oblique constricto plicato, segmento ventrali septimo fisso dehiscente.

Femina. Latet.

Hab. Mexico, Cordova (Sal/é).

A species superficially resembling Silis pausxilla, but in addition to the red head and

scutellum, the constriction of the thorax takes place in a different manner, it not having

the margin thickened or prominent in front ; the antenne have their second joint shorter

and the following ones much longer in proportion. ‘The species, in short, belongs to

another section. The antenne of the male are very nearly as long as the body.

The elytra are greyish black and dull. ‘The centre of the thorax is rather broadly

depressed.

Five specimens, all males, in the Sallé collection.

304 SUPPLEMENT.

18. Silis analis.

Nigra, tenuiter griseo-pubescens ; ore testaceo, maris abdomine ad apicem rufo, antennarum articulo secundo

quam tertius dimidio breviori. Long. 5 millim. ¢ Q.

Mas. Prothoracis margine laterali antice incrassato, pone medium oblique constricto ; pygidio inflato cum seg-

mento ventrali fisso et genitalibus rufis.

Femina, Abdominis apice summo tantum rufescente.

Hab. Mexico, Puebla (Salié).

About the size of Discodon cinereum, wholly black above, with the exception of the

mouth which is whitish. Head hardly so wide as the thorax, opaque, not suddenly

contracted behind the eyes; basal joint of the antenn very stout, second joint not

very short, but half as long as the third. Thorax quadrate, the whole of the margin

reflexed in the male; the thickening of the side commences a little below the front

angles, where the margin is more reflexed and projects, till interrupted by the plica ;

hind angles a little prominent and thickened. The convex swelling of the pygidium

in this species is remarkable, and its red colour will cause it to be easily recognized.

Two males and one female in the Sallé collection.

19. Silis appendicularis.

Statura et summa similitudine Silidis paucille. Nigra, parum nitida; capite prothoraceque rufis, illo basi

et occipite nigro; elytris perobsolete subtiliterque rugose-punctatis, fere coriaceis. Long. 4-43 millim.

32.

Mas. Prothoracis margine laterali paullo ante angulos posticos lamina obliqua dentiformi instructo, segmento

ventrali septimo fisso.

Femina. Prothoracis margine laterali pone medium elevato plicato, segmento ventrali apicali minute exciso.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

The extreme likeness of this insect to S. pausilla renders a repetition of the general

description of that insect superfluous. The structure of the thorax is different in both

sexes. At present I have only found one example which I can certainly assert is a male ;

in this the plicate margin of the thorax runs into a lamina-like appendage close to the

hind angles; this structure is quite different from that of S. pauailla. The other differ-

ences are minute but quite sufficient ; the elytra are more finely sculptured, more black

and shining, and the thorax is not black near the front margin.

It would appear to frequent a higher altitude than the S. pauailla, but there are a

few specimens of that species, of a variety with a red head, which appear to have been

found in company with this insect, and these render its discrimination the more

difficult.

I have as yet seen only six specimens of this species.

20. Silis pauxilla.

Atra, parum nitida; ore, epistomate, antennarum articulo basali subtus, prothoraceque rufis, hoc margine

antico nigrescente. Long. 33-4 millim. ¢ 2.

MALACODERMATA. 305

Mas. Prothoracis margine laterali ante medium tuberculari, incrassato, infra medium plicato constricto.

Femina. Prothorace latiore, margine laterali in medio minute plicato.

Hab. Guatemata, Cerro Zunil, Senahu in Vera Paz (Champion); Panama, Volcan de

Chiriqui 2000 to 4000 feet (Champion).

Var. Pedibus basi testaceis. ¢ Q.

Hab. Guatemata, San Juan in Vera Paz, Cubilguitz (Champion).

Var. Capite etiam rufescente basi tantum nigrescente.

Hab. Panama, Volcan de Chiriqui (Champion).

Head as wide as the thorax in the male, rather narrower in the female, well sunk in

the thorax ; eyes not large nor prominent. Antenne not so long as the body; their

second joint short, but not so short in proportion as in S. minuta. Disc of the thorax

with a longitudinal wide impression, not very shining, having minute punctures and

fine adpressed hairs. Elytra rather distinctly and subrugosely punctured. Legs black;

palpi pitchy, apical joint of the maxillaries perhaps a little more widely hatchet-shaped

than in its near ally S¢lis appendicularis.

We are indebted to Mr. Champion’s indefatigable exertions for a series of specimens

of this little species; these were chiefly collected on the Volcan de Chiriqui, but a few

occurred in other localities ; without such a series it might easily have been confounded

with several species of Stdis which occur with it. I cannot at present satisfactorily

make out whether the claws are split; I believe, however, they are simple. The

apical segment of the abdomen is divided as in Stlis and Discodon

21. Silis minuscula.

Plumbeo-nigra, parum nitida, pube brevi cinerea sericea densius vestita; ore, prothorace (vitta mediana

excepta) pedibusque basi rufis. Long. 33-4 millim. ¢ &.

Mas. Prothoracis margine laterali ante medium tuberculari, incrassato.

Femina. Prothorace latiore, fere integro.

Hab. Guatemaa, Zapote, San Isidro, Cerro Zunil (Champion).

Very closely allied to S. pausxilla, and agreeing with it in the relative length of the

joints of the antenne, and the male characters, but differing in the legs being red at

the base, in the black vitta of the thorax, and the silky grey pubescence of the elytra.

The antenne have the two basal joints pale red, only touched with fuscous above ; they

are longer in the males than in the females ; their second joint is not very much shorter

than the third. The coxe, trochanters, and femora, except at the tips, are red. The

apical ventral plate is divided in the males, but does not gape.

22. Silis minuta.

Atra; ore pedibusque basi testaceis ; prothorace rufo, nigro-vittato, antennarum articulo secundo perbrevi.

Long. 34-4 millim. ¢. .

Hab. Guatemaua, Zapote (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, May 1885. 2k

306 SUPPLEMENT.

Very near to S. minuscula, but distinguished at once by the second joint of the

antenne being very short, not more than a quarter the length of the third joint. Also as

minor distinctions, but probably constant, the thorax is shorter, and the swelled portion

of the margin is less prominent; the whole insect (especially the elytra) is more widened

behind ; the elytra are blacker, and not finely clothed with silky pubescence ; and the

antenne are more pubescent (as in S. oblita).

Two specimens only were captured.

28. Silis hilara.

Nigro-fusca, cinereo-pubescens ; capite, prothorace, scutello, antennis basi, coxis femoribusque (apicibus exceptis)

rufis, Long. 5 millim. 9.

Mas. Prothoracis margine laterali antice tuberculari incrassato et dilatato.

Femina (var.?). Prothorace transversim subquadrato, margine integro leviter sinuato ; pedibus nigris.

Hab. Mexico (Sallé).

Var.? Femina.

Hab. Mexico, Cordova (Sallé).

In the proportion of the antennal joints, and in the structure of the thorax, this

pretty little Szlis is allied very nearly to S. pausilla; in the colour of the legs it is

similar to S. minuscula, but it appears to vary in this latter respect; it is larger than

average specimens of the latter, but the largest female of S. pauaxilla is equal to it,

though more bulky. The red head and scutellum afford an easy distinction.

Two females from Cordova, and a male and female without special locality, are all I

assign to it.

24. Silis ——?

Hab. Mexico, Ciudad in Durango 8100 feet (Forrer).

A single specimen of apparently a distinct species, but not in a condition for

description.

PLECTONOTUM (to follow the genus S¢%lis, p. 97).

Plectonotum, Gorham *.,

Plectonotum was adopted by me for a minute black species of Telephoride allied to

Silis, but of which the margin of the thorax is not notched or nicked, but with a

thickened reflexed edge in its front half, projecting like a tubercle, and the hind angle

completed, and not defective or cut out in the male. This little species was captured

by Mr. Whymper at Quito, Ecuador, at an altitude of 9500 feet, and was named by me

Plectonotum nigrum. Among My. Champion’s collections is one other species which it

* The description of this genus is unpublished as yet ; it will appear in Mr. Whymper’s forthcoming work on

the higher mountains of Ecuador.

MALACODERMATA. 307

is convenient to separate from Silis, and which will, I believe, prove to be congeneric with

the above-named insect. It is very similar in size and in its black colour, and, indeed,

at first I thought might be identical. It is one of the smallest members of the whole

family, and recalls in appearance an Attalus or Anthocomus.

1. Plectonotum labiale.

Aterrimum, nitidum ; ore et antennarum articulis duobus primis flavis, pedibus piceis; prothorace transverso,

angulis anticis obsoletis, margine laterali et frontali reflexo, incrassato, ante angulos posticos exciso.

Long. 3 millim.

Mas? Antennis corporis longitudine.

Femina? Antennis quam corpus brevioribus.

Hab. Panama, Volcan de Chiriqui 2000 to 4000 feet (Champion).

Head and thorax shining, black, the former pale in front of the insertion of the

antenne. ‘The antenne in the male (?) as long as the body, simple, with a rather long

curved basal and a very short second joint ; the third and following joints as long as the

basal and second together; in the female the third joint is shorter than these. The

thorax has its disc convex, and faintly impressed in the middle. The elytra are shining,

very finely and confluently punctured. The legs are pitchy, with pale trochanters

and coxe. Many examples were captured. )

PARASILIS (to follow the genus Plectonotum).

Antenne articulo secundo elongato, quam tertius vix breviore; in utroque sexu simplices, filiformes. Palpi

maxillares articulo ultimo modice dilatato, cultriformi, margine interno compresso, leviter curvato ; labiales

articulo ultimo triangulari. Mandibule falcate, acute, basi intus compress et ampliate, haud dentate.

Maxille breves, validx, unilobate. Prothorax margine laterali fere simplici, maris parum sinuato. Pedes

longi, unguiculis muticis. Abdominis maris segmentum septimum tenuiter fissum? Llytra integra sat

dura, abdomen tegentia, creberrime sat fortiter punctata, apicibus leviuscula.

This genus is formed to receive two species of Telephoride of a very perplexing

aspect. They are apparently members of the section to which the species here referred

to Silis belong, and scarcely would have been separated by me from them but for the

negative evidence of the absence of nearly all the especial characters by which those

species, as a group, are known to me. ‘The mandibles are not bent as in some females

of Silis ; the claws are not split or lobed. ‘The second joint of the antenne is not short,

and, indeed, is longer than in any species of Szdis. ‘The fission of the seventh ventral

segment of the males is not distinct, if, indeed, it really takes place (which, in the

wrinkled state of very many of the segments, is not easy to ascertain). The thorax is

nearly (but not quite) free from any plication or thickening of the margin by which the

sexes can be known. The elytra are firmer than in any other Telephorid I can recall ;

and the general resemblance to a species of Cleride of the genus Colyphus is so strong

as to suggest the idea that these species are not properly placed in this group. The

only European genus to which I can liken it is Pygidia, from which, however, it differs

in all its details, except the strong punctuation of its elytra.

2h 2

308 SUPPLEMENT.

1. Parasilis colyphoides.

Flavo-testacea, subnitida; antennarum articulis sex apicalibus, pectore abdomineque fuscis; elytris fuscis,

subcyanescentibus, crebre fortius punctatis; femoribus posticis dimidio apicalinigris. Long. 64-7 millim.

Hab. Panama, Volcan de Chiriqui 2000 to 6000 feet (Champion).

Head with the palpi and mouth entirely red. Antenne long and thin, not quite

reaching the extremity of the body, red at the base for five joints. Thorax red, as long

as wide, margined, with all the angles rounded; disc shining, uneven, with a central

channel, and a transverse impression, but not defined ; the lateral margin is raised, but

not strongly, and continuous, though it is a little sinuous and irregular in its degree of

reflexion in different parts. The elytra are steel-blue, inclining to brownish or testaceous

in the middle; the punctuation is coarse and crowded; one raised line is visible for

rather more than half their length between the shoulder and the suture, and there is a

trace of a second near the base ; near the apex they are smoother and shining. The

apical halves of the hind femora and the tips of the tarsi are black. Metasternum and

abdomen fuscous black, the lateral and sometimes the apical margins of the abdomen

pale. A large number of specimens were captured by Mr. Champion at various altitudes

on the Volcan de Chiriqui.

2. Parasilis vittata.

Nigro-fusca, parum nitida; ore, palpis, femoribus basi, tibiis tarsisque, prothoracis margine elytrorumque

vitta fere integra, pallide-testaceis ; elytris crebre fortiter vix seriatim punctatis. Long. 53 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Well distinguished from P. colyphoides, not only by the colour, but by the narrower

and more graceful build, and by the head being more exserted and more suddenly nar-

rowed behind the eyes. The thorax in the male has an oblique sulcus or constriction

at about the middle of the side. ‘The structure of the apical segments of the abdomen

in one of the specimens, a male, is very singular, but, being in a soft condition, I

cannot describe it accurately or certainly. It appears as if the sixth and seventh ventral

plates were reduced to lateral filaments, while the dorsal or pygidial terminal plate is

cleft and forms two lobes, terminating in two blunt points, which meet and form a sort

of arch. I have not been able, however, on this single specimen, to satisfy myself that

these lobes are really dorsal, and think they may represent the seventh ventral plate.

Two specimens are all that have been found.

BELOTUS (p. 99).

Belotus abdominalis (p. 99).

To the localities given, add:—Panama, Bugaba, Tolé (Champion).

Several male specimens from Bugaba have the thorax pitchy black, with only the hind

angles and the hind margin of the base very narrowly yellow.

MALACODERMATA. 309

Belotus maculatus (pp. 99, 100).

To the localities given, add :—Panama, La Caldera in Chiriqui, David, Bugaba, Tolé,

Voican de Chiriqui 2500 to 4000 feet (Champion).

This species was met with abundantly by Mr. Champion, especially at La Caldera, by

beating various fruit- and other trees, principally in the open savanna region of the low

country ; many examples were found upon the mango, calabash (Crescentia), and other

trees cultivated by the natives in the vicinity of the settlements.

4. Belotus ——?

Hab. Mexico, Jalapa (Hoge, Flohr).

A single specimen from Herr Hége’s collection, and one sent me by Mr. Flohr, of a

fuscous-brown insect, 7 millimetres in length, and with very long filiform antenne; the

head and thorax smooth and shining, the elytra about half as long as the body. In

the absence of more specimens, the determination of the genus is doubtful.

MARONIUS (p. 100).

Maronius dichrous (p. 100).

Var. Prothoracis disco (angulis posticis exceptis) nigro. (Tab. XII. fig. 17.)

Hab. Panama, Bugaba (Champion).

A rare species. A few examples only were captured, sitting on leaves in the

virgin forest of the “ tierra caliente.”

THINALMUS (p. 101).

Thinalmus pectinicornis (p. 101).

To the localities given, add:—Panama, Taboga Island (Champion).

Thinalmus centrolineatus (p. 101).

About two dozen specimens of this species have been collected by Mr. Champion, at

elevations of from 2000 to 4000 feet, on the Volcan de Chiriqui; these are for the

most part males. In the few females which were sent the antenne are acutely

serrate, and the scutellum yellow.

MALTHINUS (p. 102).

Malthinus terminalis (p. 103).

A good many examples were captured at Bugaba. Of these the greater part have

the thorax entirely pitchy black, the central channel terminating at the base in a deep

groove, open behind, and only the terminal joint of the antenne obscurely yellow.

310 ~ SUPPLEMENT.

Malthinus cruenticeps (p. 104).

Var. Prothoracis limbo, pedibusque totis, testaceis.

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

Mr. Champion secured a very large series of about fifty specimens of what I consider

to be a variety of this insect. They differ from the type in having the thorax more

depressed and wider at the base, also in having it margined with yellow, and the legs

entirely yellow. In one or two examples the smooth apex of the elytra is yellow.

These examples were found by Mr. Champion by sweeping the undergrowth, chiefly

consisting of Bambusacez, in the virgin forest at a high elevation.

Malthinus flavipes (p. 105). -

After examining the specimens of IZ. cruenticeps collected by Mr. Champion on the

Volcan de Chiriqui, I am not disposed to insist upon the specific distinction of this

species; but as no specimen has occurred mixed with them similarly coloured to the

San Gerénimo specimens, it will be better for the present to retain it as distinct.

8. Malthinus

Hab. Mexico, Jalapa (Hége).

A species of Malthinus allied to WM. cruenticeps. - The thorax is apparently

smooth ; the elytra are similarly striate, but the punctures are coarser, and the tips

are yellow. The single specimen is, however, immature, and not in a condition for

description.

MALTHODES (p. 108).

Malthodes pallipes (p. 105).

To the localities given, add:—Panama, Bugaba, David, Tolé (Champion).

Many males are very small, about two to two and a half millimetres in length, and

have the thorax apparently dull, perhaps only owing to change after death.

3. Malthodes tetra.

Nigra, opaca; antennis corporis longitudine, filiformibus; prothorace postice impresso. Long. 33 millim.

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

The wholly black colour, with the exception of the mouth and front of the head, of

this little species will distinguish it from MM. sanguineicollis, which it resembles in

form,

A single specimen only appears to have been met with.

MALACODERMATA. 311

MALTHASTER (to follow the genus Malthodes, p. 106).

Caput porrectum, postice valde angustatum. Antenne filiformes, graciles haud serrate. Palpi maxillares articulo

ultimo interne dilatato, cultriformi; labiales breves, articulo ultimo subtriangulari. Mandibule inermes,

eequaliter curvate. Prothorax lateribus deflexis, antice et postice subconstrictus. lytra mollia, corporis

longitudine, haud conspicue punctata, Pedes sat longi, graciles; tarsi longi; ungues simplices. Mas,

abdominis segmento sexto ventrali fisso.

The insect for which I propose this new genus is like Malthinus in general appearance

and in the form of the head. It differs, however, from that genus in the dilated palpi

and fully-developed elytra, as well as the sexual character of the divided sixth segment

of the abdomen. In this latter character it agrees with Silis and Discodon; but, as far

as I can see, the claws are quite simple. The thorax is similar in the sexes, with the

side margins very depressed ; there is a small callosity on each side in front, and the

posterior part of the disc behind has a subtubercular nodosity.

1. Malthaster suturalis.

Elongatus, sublinearis, sordide-testaceus ; antennis, palpis, occipite, thoracis maculis duabus, sutura preesertim

ad basin, tibiis tarsisque, infuscatis. Long. 6 millim. g §.

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

The head is contracted behind, asin Malthinus ; the mouth, the mandibles, the under-

side of the head, and the epistoma are yellow; the palpi, especially at their apices, are dark

fuscous. Theantenne are about three quarters of the length of the body, with elongate

thin joints, which are pilose ; the second joint is much longer than in Sits or Discodon,

being two thirds of the length of the third, the remaining joints subequal, the terminal

one longer. Thorax elongate, uneven, truncate before and behind, with slightly raised

margins. Scutellum pale yellow. Elytra apparently very thin and soft, sordid bone-

colour; the suture dark fuscous, widely so at the base, but the dark band running out

at the apex. Underside testaceous, the abdomen fuscous except at its apex and

margins. Legs pale; tibie faintly, tarsi darkly, fuscous.

About sixteen specimens of this species were found by Mr. Champion in the virgin

forest at 8000 feet elevation, and apparently at no other part on the Pacific slope of

the Volcan de Chiriqui; this locality appearing to be comparatively rich in peculiar

forms of Malacodermata, as well as in other interesting species of Coleoptera.

PTORTHODIUS (p. 106).

Ptorthodius mandibularis (p. 107).

About twelve examples in all were captured by Mr. Champion at elevations of from

2500 to 4000 feet on the Volean de Chiriqui; these do not differ much, nor can I dis-

criminate the sexes.

312 SUPPLEMENT.

Ptorthodius ramosus (p. 107).

To the locality given, add:—Panama, Volcan de Chiriqui 8000 feet (Champion).

A single example, found at a similar altitude to those captured on the Quiche

mountains, .

2 (a). Ptorthodius

Hab. Panama, Bugaba (Champion).

A single example of an insect closely resembling P. ramosus, but captured at a lower

elevation. It differs slightly in having the prothorax whitish, with only the central

portion pitchy, and may be distinct from that species.

EURYOPA (p. 108).

Euryopa fusca (p. 108).

To the locality given, add :—Panama, Volcan de Chiriqui (Champion).

One specimen of this species found at an elevation of 2000 to 3000 feet and three at

8000 feet do not present any great difference from the type. The thorax is somewhat

less infuscate, and in two examples is quite ferruginous. The eyes are smaller in the

three examples from the higher altitude; but I am inclined to think this is a sexual

difference, and that these are females.

Euryopa singularis (p. 109). |

To the locality given, add :—Panama, Volcan de Chiriqui 8000 feet (Champion).

One example, which, however, differs much as do the examples of F. fusca, viz. in

having smaller eyes. The head is more developed behind the eyes; the thorax is

shorter. If not the other sex, this is a distinct species; on single examples it is hardly

possible to form an opinion on the point.

2 (a). Huryopa

Hab. Panama, Volcan de Chiriqui (Champion).

A single specimen of a very singular insect having 11-jointed simple antenne, but in

structure very like a small Ptorthodius mandibularis, and having the remarkably long

head with an elevation on each side in front of the base of the antennae, occurred as

above. In our present state of ignorance of the sexes of these beetles I do not think

it wise to do more than call attention to it.

Euryopa nigra (p. 109).

To the Panama locality given, add :—Bugaba (Champion).

A single example, which I think referable to this species, occurred at Bugaba.

MALACODERMATA. . 313

MELITOMMA (p. 110).

Melitomma brasiliense (p. 110).

To the localities given, add :—Panama, Bugaba (Champion).

'" ATRACTOCERUS (p. 111).

Atractocerus brasiliensis (p. 112).

To the localities given, add :—Muxico, Presidio (forrer) ; Costa Rica (Van Patten).

COLLOPS (p. 113).

Collops bipunctatus (p. 113).

To the Mexican localities given, add :—Northern Sonora (JJorrison).

Collops tricolor (p. 113).

Collops tricolor, Horn, Trans. Amer. Ent. Soc. ii. pp. 80, 81.

Dr. Horn compares this species to C. punctatus, Leconte. The species which we

have received from Morrison under that name differs considerably, and is perhaps not

the species referred to by Dr. Horn. There are, however, several very nearly allied

species probably confounded under this name. C. tricolor (typical form) has the head

rufous in front as far as the insertion of the antenne, of which the basal joint is entirely’

red ; and in the male the large third joint is dark externally, and the succeeding joints

fuscous; in the female the second and third joints are rufous externally.

Specimens occurred in Mexico at Oaxaca (Hége), at Etla and Parada (Sallé), and

there was one in Sallé’s collection from Sturm’s. A variety (possibly an extremely

closely allied species) has the dark colour of the head extending between the antenne,

so that they are inserted on a dark ground ; these are from Oaxaca (Hége) and Puebla

(Sallé).

A very curious hermaphrodite, or, rather, gynandromorphous example of this latter

form has been sent from Oaxaca (Hége), of which a figure is given on Plate XIII.

figg.1,1a. The antenna on the right side has a small clavate process arising from the

basal joint, the fifth joint is enlarged and acuminate on its inner side, and with a

mucro at its apex, forming together the clasping-organ for the retention of the female

antenna during copulation, which is the object of all the various distortions we meet with

in the male antenne of the Malachiide. On the left side, however, the antenna is that

of a normal female. The andromorphism, however, would not seem to extend to the

whole of the body; forit happens that the tarsi of the male in Collops are four-jointed,

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, Apri/ 1886. 2S.

314 | SUPPLEMENT.

whereas in this specimen both tarsi are female or five-jointed. An examination of the

other parts of the body does not reveal any other departure from the usual structure ;

but it is necessary to remark that the abdomen has shrunk, as it usually does in these

insects, and is not easily examined.

Var. ?

Antennis brevibus, articulo basali externe fusco notato, articulis quarto ad octavum externe flavis. ¢.

Hab. Mexico, Ciudad in Durango 8100 feet (Forrer).

This variety can hardly represent a distinct species, especially if the specimens I

have seen from the United States with the antenne nearly quite yellow are to be

referred to C. tricolor. There is a very small female example from the same locality

which may be mentioned here; it hardly differs from typical C. tricolor, except

in size.

3 (a). Collops frontalis.

C. tricolori summa affinitate ; niger, capite nigro-cyaneo, ultra oculos et antennarum basi lete flavis; prothorace

brevi, plus duplo lato quam longus, ferrugineo ; abdomine rufo, segmentis basi infuscatis ; elytris violaceo-

ceruleis. Long. 53-6 millim. ¢ 9.

Hab. Mexico, Oaxaca (Hoge), Etla (Sad/é).

This species is very close to C. tricolor, the most striking difference being that. a

greater amount of the head is coloured yellow in front; this colour extends to the

eyes, so that one third of the eye is surrounded with yellow, and a sinuous line drawn

between the front margins of the eyes will demarcate the yellow portion. ‘The short-

the elytra may, of course, be subject to variation, but is constant in these specimens.

There are three males and one female. The antenne are coloured as in C. tricolor ;

the appendage of the third joint in the males is distinct, long, and curved, and nearly

quite yellow.

Collops femoralis (p. 113).

To the locality given, add :—Mxxico, Presidio, Mazatlan, San Blas (forrer).

Collops geminus (p. 113).

Var. pedibus basi rufis.

Hab. Mexico, Presidio, Milpas 5900 feet (Forrer).

5 (a). Collops validus.

Collops validus, Horn, Trans. Am. Ent. Soe. iii. p. 82°.

Hab. Mexico, Yaqui river in Sonora! (Dr. Palmer).

MALACODERMATA. 315

Described as resembling C. bipunctatus in the head and thorax, and with elytra

marked as in C. guadrimaculatus.

5 (B). Collops balteatus.

Collops balteatus, Leconte, Proc. Ac. Phil. vi. p. 230'; Horn, Trans. Am. Ent. Soc. iii. pp. 80,

83, 84°.

Hab. Norru America, United States, Texas (Belfrage).—Muxtco '.

I possess specimens of this species from Texas, but have not seen it from Mexico.

5 (c). Collops quadrimaculatus.

Malachius quadrimaculatus, Fabr. Ent. Syst., Suppl. p. 70; Syst. Hleuth. i. p. 308; Schonh. Syn.

il. p. 78.

Collops quadrimaculatus, Erichs. Entomographien, p. 58*; Horn, Trans. Am. Ent. Soc. i.

pp. 80, 82°.

Hab. Nortu America!, United States?, Texas (Belfrage).—Mexico, Ciudad in

Durango (Forrer).

I have seen only one specimen from Mexico which I should refer to this species.

C. quadrimaculatus may be known by its very small size, and by its having the head

blue or greenish, excepting only the margin of the labrum. The legs are nearly black,

but with reddish-brown tibie in some specimens; the abdomen mottled. In the

examples I possess of the male the swollen third joint of the antenne is wholly

yellow.

Collops histrio (p. 114).

To the localities given, add :—Mzexico, Northern Sonora (Morrison), Ventanas, Ciudad

in Durango (Forrer), Pinos Altos in Chihuahua (Buchan-Hepburn); Panama, Bugaba,

Volcan de Chiriqui 3000 to 4000 feet, Pela Blanca (Champion).

Rather larger than C. guadrimaculatus, with more of the front margin of the head

yellow, viz. as far as the insertion of the antenne; and the large joint of the antenne

in the male always infuscate externally. C. histrio is duller than the following

species.

The Mexican specimens are generally of a bright orange hue, and the size and shape

of the blue spots vary. At San Gerdénimo, where this species was locally very abundant,

Mr. Champion found it on flowers in the sugar-cane fields.

6 (a). Collops intermedius.

Niger; capite antice antennarumque basi testaceis, articulis basalibus nigro notatis; elytris fulvis nitidioribus,

basi maculisque duabus magnis subrotundatis subapicalibus ceruleis ; pedibus nigris; abdomine ferrugineo,

apice nigro. Long. 4-5 millim. ¢ Q.

Hab. Panama, Volcan de Chiriqui (Champion). |

28 2

316 SUPPLEMENT.

Extremely close to C. histrio; rather larger, more deeply coloured, and more shining.

The head has the front yellow as far as, and extending round, the base of the antenne ;_

the basal joint of the antennze in the female has a blackish line on its upper surface,

and the third and fourth joints are black on the inner half. Palpi black. The thorax

is rich ferruginous red, covered with upright hairs, but not quite so thickly as in

C. histrio. The elytra are of a deeper red than usual in the latter; the blue markings,

and especially the hind spots, are more shining, owing to the coarser puncturing; in

C. histrio the puncturing is so close as to be confused, whereas it is here so distinct

that the separate punctures, though often confluent, are easily seen, and their inter-

spaces are smooth. The breast and legs are black ; the abdomen blood-red, but several

of the segments are mottled with fuscous in an indistinct manner, the dorsal apex being

generally black. After closely studying the large number of specimens secured by

Mr. Champion on the Volcan de Chiriqui, one sees that they present remarkably constant

points of difference from those from Guatemala and elsewhere, which I assign to

C. histrio. Thus the larger amount of yellow on the front of the head is the same in

all the Chiriqui specimens, with one or two exceptions, it being therefore probable that

the original form or species (C. histrio) is mixed in small numbers with the new species.

7 (a). Collops blandus.

Collops blandus, Erichs. Entomographien, p. 60°.

Hab. Mexico 4, Presidio (Forrer).

Distinguished from C. histrio and allied species by the red legs and antenne, and by

examples before me collected by Mr. Forrer the tibie are a little darker than the base

of the legs. Three of the specimens are males.

Collops vittatus (p. 114).

To the Mexican localities given, add:—Northern Sonora (Morrison), Saltillo in

Coahuila (Dr. Palmer).

The specimens collected by Dr. Palmer and some of those from Sonora have a single,

square, pitchy patch on the disc of the thorax; they also usually have entirely red

antennee, and are larger than the specimens from Sallé’s collection, and probably differ

quite as much as some of the allied species mentioned by Dr. Horn. All the species

of this genus require a thorough revision.

9. Collops punctatus. :

Collops punctatus, Leconte, Proc. Acad. Phil. vi. p. 164°; Horn, Trans. Am. Ent. Soc. iii. pp. 80, 81°.

Hab. Nortu America, United States!, Kansas?.—Muxico, Northern Sonora (Morrison).

MALACODERMATA. 8317

Resembles C. tricolor, but is smaller and much narrower, with the abdomen black, and

the tibie and tarsi rufous. Dr. Horn says that the elytra are more coarsely punctured

than in C. tricolor; they are not so in the specimens before me, compared with

C. tricolor from Oaxaca; in the latter separate punctures are easily observable ; whereas

in C. punctatus from Northern Sonora the punctuation is very close, confluent, and

sometimes inclining to form ruge. The antenne are red at the base externally for

four joints in the female, to which sex most of the specimens before me belong ; in the

male the basal joint and the external side of the second one are yellow.

ANTHOCOMUS (p. 114).

6 (a). Anthocomus hepburnius.

Nigro-piceus, nitidus; antennarum articulis basalibus et epistomate testaceis; prothorace rufo, bi-impresso,

macula parva lineari nigra; elytris nigro-cyaneis, transversim subrugulosis, nitidis ; femoribus anticis basi

late rufis. Long. 22 millim.

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn).

Head black, somewhat depressed in front between the eyes, and with a tubercle between

the ‘bases of the antenne; the latter about equal in length to the head and thorax,

rather more slender than in A. ventralis, Horn, and with the five basal joints testaceous

beneath, the basal joint almost pitchy; labrum at its base pitchy, corneous; palpi

and mandibles pitchy. Thorax not much wider than long, rich brick-red, not very

shining, with a distinct spot, which is elongate and constricted in the middle; the

surface of the whole disc finely alutaceous. Elytra not so long as in A. ventralis,

more resembling those of A. discimacula, shining; when viewed sideways a transverse

wrinkling will be observed, but the whole surface is subrugose; the humeral callus is .

evident. Legs pitchy black, pale at the articulation of the coxe and femora ; front

femora broadly red at the. base. Abdomen pitchy.

Both this species and A. discimacula are rather near A. erichsoni, Lec. ; but they may

be separated by the elytra not being clothed with a fine cinereous shining pubescence,

- which I observe in specimens sent me as the latter from Texas. The present species

also is a little like A. ventralis, but differs in many minute particulars, notably in the

nearly black abdomen, and the distinct spot on the thorax. From A. discimacula, to

which it is evidently nearly allied, many small differences seem to separate it, e. g. the

tubercle on the head, the spot on the thorax being small and not reaching the front,

&c. There is unfortunately but a single example of this insect, so that it is impossible

to say to what extent the characters given may vary.

9 (a). Anthocomus opalinus.

Niger; ore, antennis, pedibus, prothoracis limbo laterali et basali, elytrorumque margine laterali, flavis, his

olivaceis, obsolete punctatis. Long. 2 millim.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

318 . SUPPLEMENT.

Allied to A. sapphirinus, and with the elytra similarly smooth and iridescent; the

antenne, towards their apices, and the femora externally are infuscate. Unfortunately

of two examples of this insect sent by Mr. Champion one has lost the head and thorax ;

in the other these parts are black, and the latter has the disc very smooth and

shining. The elytra are longer than in A. sapphirinus, and cover the abdomen.

| ATTALUS (p. 118).

1 (a). Attalus verberatus.

Niger; subtus rufus, metasterni lateribus piceis; capite (basi excepta), prothoracis margine basali, sutura

dimidio apicali pedibusque, sanguineo-rufis, his, tibiis, tarsis femoribusque externe, nigris. Long.

Amillim. ¢.

Var. fascia elytrorum tenui etiam rufa. 9.

Hab. Panama, Pefia Blanca 3000 to 4000 feet (Champion).

Among the described species of Attalus recorded in the present volume this will

be easily recognized by the colour ; it, however, resembles an undetermined Anthocomus,

of which there is a broken specimen from Tocoy. In the single male specimen of this

species the head is red, black at the base, and with three black dots on the front. The

antenne are black, with several joints at their base yellow beneath. The front tarsi

have the prolonged second joint of a lighter yellow colour than the rest of the foot.

The suture of the elytra commences to be red shortly before the middle, and this

colour also surrounds the apical margin. The whole insect above is very finely pubes-

cent, but not so as to prevent its being shining. There is one female specimen only,

and in this there is a narrow red fascia where the suture commences to be red; the

head is black at the base, and ‘touched with blackish between the antenne. .

2 (a). Attalus cinctus.

Attalus cinctus, Horn, Trans. Am. Ent. Soc. iv. p. 126°.

Anthocomus cinctus, Lec. Proc. Ac. Phil. vi. p. 166’.

‘Black, abdomen pale yellow. Head black, anteriorly pale yellow. Thorax black, shining, base narrowly |

margined with yellow. Elytra black, slightly pubescent, lateral and apical margins and suture narrowly

bordered with yellow. Legs pale yellowish testaceous. Length 3 millim.”

Hab. North America, Colorado river, California }?.— Mexico, Northern Sonora

(Morrison).

Specimens of this insect received from Mr. Morrison are labelled Attalus cinctus.

Leconte says, “‘ The pygidium is black, margined with testaceous ; the abdomen has two

rows of piceous spots, the posterior tibie are piceous.” This is so in the majority of

specimens, but some appear to have the abdomen black beneath, as well as above, and

would then appear to be A. difficilis, Lec., but I do not think the difference of specific

value. A. limbatus, described in the former part of this volume (ante, p. 119), appears

to differ in having a narrower head, which has more of the front portion yellow; in

MALACODERMATA. . 319

having the sides of the thorax yellow and the legs entirely bright yellow; and is

apparently a shorter and stouter insect.

2 (s). Attalus tabogensis. |

Pallide flavus; capite prothoraceque nitidis, hoc disco, illo basi nigro-piceis; elytris opacis, pilosellis, vitta

fusca; antennarum et tarsorum apicibus infuscatis. Long. 24 millim.

Hab. Panama, Taboga Island (Champion).

Allied to A. limbatus, and chiefly distinguished from that species by the very pallid

and opaque elytra, which are often quite pale, with the exception of an elongate infuscate

patch towards their apex, at other times they are dark fuscous with pale suture and

margins. The head is usually yellowish as far as the middle of the eyes, but in one or two

examples it is nearly all black, but even in these (which have at the same time blacker

elytra) these latter are opaque. The male has the tip of the elongate second joint of

the tarsi black. The female has the apex of the pygidium semicircularly cut out, and

fringed with long hairs on each side. The male has a deep and long impression on

the abdomen above, near the apex, extending over the greater part of the last segment.

About a dozen examples were obtained by Mr. Champion on flowers in the hot sun

on the rocky slopes of the island of Taboga in company with other minute and inter-

esting allied species. )

2(c). Attalus fuscescens.

Niger, nitidus; elytris ultra medium fusco-testaceis, antennarum basi, ore pedibusque testaceis, tarsis apice

nigris ; abdomine piceo, segmentis singulis albido marginatis. Long. 23-3 millim.

Hab. Panama, Taboga Island (Champion).

Head and thorax pitchy black and glabrous, the latter about as wide as long, and

equal to the former in width; antenne shorter than in A. caraboides, and darker at

the tips, the three or four joints at the base yellow. Elytra not much widened behind,

nor very convex, clothed with a very short fuscous pile; black at the base, and at about

one third of their length shading insensibly into dirty pale livid-yellow. Legs yellow,

the tips of the tarsi only blackish; sometimes the femora are infuscate. I have not

detected a male, and therefore cannot affirm this to be a true Attalus. It is apparently

_ allied to A. caraboides, but no such structure as I noticed in the trochanter of that

species can be found here. Hight examples captured by Mr. Champion “ on flowers in

the hottest sun.”

2 (p). Attalus (?) calearatus, (Tab. XIII. fig. 3.)

Niger, nitidus; pedibus rufis, femoribus posticis piceis, abdominis lateribus, segmentorumque singulorum ~

marginibus luteis; tibiis posticis ad apices calcarato-productis. Long. 2 millim. 9.

Hab. Panama, David, Tolé (Champion).

Very closely resembling A. nigrowneus, but smaller, and with shorter antenne, and

320 SUPPLEMENT.

the elytra without any neous tinge. The head and thorax are quite smooth, and the

elytra only very obsoletely impressed. The last six joints of the antenne, the claw

joint of the tarsi, and the hind femora, are pitchy; the front and middle femora slightly

pitchy at their bases. The hind tibiz are a little bent, and beyond the insertion of the

tarsi are produced into a mucro nearly equal in length to the first joint of the tarsus

(Tab. XIII. fig. 3a). This is a character I have not seen in any species c of Melyride

before. Three specimens were obtained.

2 (x). Attalus subfasciatus. (Tab. XIII. fig. 2.)

Niger, nitidissimus ; prothoracis margine postico, elytrorum fascia antemediana, ad suturam interrupta, ad

marginem dilatata, tibiisque anticis et intermediis, flavis; antennis articulis sex basalibus tarsisque piceis..

Long. 2 millim.

Hab. Mexico, Northern Sonora (Morrison).

One of the smallest species of the genus, hardly punctured anywhere, the elytra not

_ much widened behind; the head wider than the thorax; the latter transverse, largely

rounded behind, truncate in front. In general appearance resembling A. caraboides,

the colour black, with a faint brassy tinge. In one specimen, in addition to the fascia,

the elytra become pitchy red towards the apex.

A few specimens sent by the late Mr. Morrison, and labelled « Attalus, Sp. n.’

7, Attalus celestinus.

Niger ; elytris chalybeis, nigro-pilosellis ; prothoracis margine postico utrinque macula minuta, trochanteribus.

antennisque basi subtus, flavis. Long. 23-3 millim. ¢ @.

Hab. Muxtco, Northern Sonora (Morrison).

This little species must, to some extent, resemble Anthocomus flavilabris, Say, but is

evidently distinct, and moreover is an Attalus, one specimen having the front tarsi

when viewed from above four-jointed. The hind margins of the thorax are very

indistinctly yellow on each side. The antenne are faintly serrate in the male, the

first four joints yellowish beneath and externally. The head is black, excepting the

labrum. The legs are black, with the exception of the trochanters and the underside

of the femora, which are yellow, in an undefined manner, in the front and middle

pairs. Two specimens are all I have found among the insects received from the late

Mr. Morrison. |

8. Attalus carinatus. (Tab. XIII. fig. 4, ¢.)

Leete rufus vel sanguineus ; antennarum articulis sex vel septem ultimis, femoribus extrorsum, tibiis tarsisque,

nigris; elytris basi nigris, carina acuta, in callo humerali exorta, ante apicem desinente, munitis. Long.

34-4 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui 2500 to 6000 feet (Champion).

Head and thorax very smooth and shining, without impressions, the latter orbiculate,

MALACODERMATA. 321

a little wider than long; tips of the palpi and of the mandibles pitchy, at least above ;

antenne scarcely serrate, the five basal joints at least red. Elytra closely but distinctly

punctured, depressed and flat in their basal half, evenly rounded and convex at the

apex, in some specimens (female?) leaving two segments exposed, the suture closed ;

near the margin and springing from the shoulders is a well-defined carina extending

two thirds of their length, and parallel to the true margin. Scutellum and body

beneath red. The elytra often blood-red, sometimes yellow, with the base black, with

a blue reflection ; often, however, this patch does not quite touch the suture. Legs red ;

femora externally, and the tibie and the tarsi, black.

Taken by Mr. Champion on flowers in the open savanna country.

EBZUS (p. 120).

1 (4). Ebgus punctatus.

Niger, nitidus; antennis pedibusque flavis, his femoribus, illis apicibus fuscis, palpis maxillaribus testaceis,

basi apiceque nigris ; elytris subcyanescentibus, crebre fortius punctatis, postice ampliatis. Long. 13 millim.

Mas? Elytris abdomen tegentibus.

Femina? Elytris abdominis segmenta tria haud tegentibus.

Hab. Panama, Bugaba, David (Champion).

Not very different in general appearance from LE. seminulum; rather larger, the elytra

more of a blue-black in colour and very distinctly punctured. Antenne almost entirely

pale, and scarcely serrate; head and thorax very smooth and shining. Llytra thickly,

sometimes confluently, punctured, and with scattered white depressed hairs. Hind

tibie slightly curved.

A very few specimens of this species were met with.

LEMPHUS (to follow the genus Ebwus, p. 121).

Lemphus, Erichson, Entomographien, p. 131 (1840).

Lemphus was made by Erichson for a species of Malachiide, with the elytra much

shorter than the abdomen, and with the tarsi four-jointed, or rather apparently so, for

the fourth joint exists, but is very small and not easily seen. Lemphus mancus is from

La Guayra in Venezuela; Erichson described a second species from Peru (L. fulcratus)

in Wiegmann’s ‘ Archiv’ (1847), but from that time no other species have been made

known.

1. Lemphus serricornis. (Tab. XIII. fig. 5.)

Fusco-testaceus ; capite nigro, antice testaceo ; prothorace rufo, vitta lata mediana maculaque utrinque nigris

(maris disci dimidio frontali toto nigro); elytris fuscis vitta indistincta, margine reflexo suturaque

dilutioribus ; antennis nigris, basi flavis ; pedibus testaceis, plus minusve infuscatis. Long. 33 millim. ¢ 9.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, Apri 1886. ; 2T

399, SUPPLEMENT.

Mas. Antennis acute serratis, quam elytra longioribus.

Femina. Antennis quam elytra brevioribus, minus acute serratis.

Hab. Panama, Taboga Island (Champion).

Head black, shining, yellow in front of the eyes; front rather produced ; palpi

pitchy. Antenne of the male of the length of the elytra; black, the first three joints

yellowish, the joints from the fourth to the tenth triangular, acutely produced on the

inner side, the apical one elongate and faintly cultriform; of the female they are one

third less in length, all the joints, especially the apical ones, shorter. Thorax broader

than long, red, with a broad black vitta not touching the base; in the male the front

is black also, in the female there is only a spot on each front angle. Elytra clothed

with a shining grey pubescence, and with a long but very fine pile (which extends over

the whole upper surface); a deep sutural stria, and the margin, subreflexed. Four

segments of the abdomen are left exposed in the female, in which sex the three apical

ones are black, in the male they are all fuscous above. Legs testaceous, more infuscate

in the female. One specimen only of each sex.

DROMANTHUS (p. 121).

1 (a). Dromanthus laticornis.

Niger; prothorace rufo, nigro vittato, nitido; ore abdominisque lateribus anguste rufis, coxis et trochanteribus

rufo-piceis; elytris opacis, nigro-violaceis, parce piloseilis ; antennis latis, serratis. Long. 44 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Allied to D. decipiens, but with the opaque elytra of D. opacus, from both of which

the wide flat antennee will distinguish it. It moreover differs from D. decipiens in the

following respects :—the antenne are black at the base, the thorax is wider and with a

narrower black vitta, the elytra are less hairy and free from punctuation and have the

suture and the margins neatly raised. The epistoma, mandibles, and maxille are

reddish yellow, but the labrum and the palpi are black.

This insect presents a singular combination of the general appearance of the other.

Malacoderm groups: the smooth elytra of the Lampyride, the antenne of the Lycide,

and the thorax of the Telephoride ; the four-jointed tarsi should, however, enable it to

be recognized. It appears rare, three specimens being all I have seen.

1(s). Dromanthus nitidicollis. (Tab. XIII. fig. 6.)

Niger; prothorace rufo, nigro vittato, nitido; elytris opacis, nigro-violaceis, parce pilosellis; antennis latis,

serratis, articulo apicali albido. Long. 43 millim.

Hab. Panama, Bugaba (Champion).

Two examples. Resembles D. laticornis so nearly that it may prove to be a form of

that species, but the white apical joint of the antenne is a character usually indica-

MALACODERMATA. $23

tive of specific difference in the Malacodermata, and it is from a different locality ;

also closely allied to D. discoideus *.

Dromanthus jucundus (p. 123).

_ A second example of this species was subsequently found by Mr. Champion at

Bugaba: this one is rather larger than the type, being five millimetres in length,

apart from the three segments of the abdomen which pass the elytra, and from which

I infer the specimen is a female. The head and breast. are steel-blue, the abdomen

yellow. In the type the two segments of the abdomen which are uncovered are

bluish black. Both specimens were captured flying about timber in the forest.

HELCOGASTER ? (to follow the genus Dromanthus, p. 122).

Helcogaster, Boheman, Kongliga Svenska Fregatten Eugenies Resa, Zool. i. p. 81 (1858).

A genus of Melyride, founded by Boheman upon three species from Australia, some-

what resembling Lemphus and Carphurus, but with five-jointed tarsi, and (in some

species) pectinated antenne. The only recently added species is one from Honolulu,

described and figured by Dr. Sharp in ‘The Trans. Royal Dublin Society,’ iii. series 2,

p. 157, t. iv. fig. 20, Helcogaster pectinatus. The admission into the genus of this

species and of the one here described must be considered only tentative at present.

They are, however, very clearly allied to the Australian species, and, as far as I have

been able to examine them on the limited number of specimens, have no other very

near ally.

They may be known from small Malachiide by the hairy antenne and abdomen.

1. Helcogaster (?) atratulus.

Aterrima, nitida, fere glabra; antennis serratis, articulo basali rufo; capite punctato, fronte ineequali ;

antennis articulis singulis intus, abdominisque apice, villosis. Long. 3 millim.

Hab. Panama, Tolé (Champion).

Var.? Minor; antennis tenuioribus, articulis duobus basalibus rufis; elytris piceis.

Hab. GuaTEMALA, near the city (Champion).

This small insect, of which there is only a single specimen from each of the

* Dromanthus discoideus.

Niger, nitidus; elytris opacis, prothoracis lateribus femoribusque basi rufo-testaceis; antennis fortiter serratis,

articulis tribus basalibus subtus flavis. Long. 44 millim.

Hab. Sourn America, Parana (coll. Gorham).

In general appearance very similar to D. laticornis and D. nitedicollis described above, the most apparent

difference being that the thorax has the disc entirely black, leaving only the margin (and that most widely in

front) yellow. The antenne are not so wide as in D. laticorms.

272

524 SUPPLEMENT.

localities cited, is very much like a small black Attéalus, such as A. caraboides and

A. calcaratus. Without having more specimens before me, I do not think it advisable

to add anything to the short diagnosis given above.

CYMBOLUS (to precede the genus Pristoscelis, p. 123).

Corpus oblongum, parallelum, superne convexum. Caput in prothorace bene receptum ; oculi fortiter granulati ;

antenne quam caput cum prothorace longiores, ab articulo quarto inde serrate, articulo ultimo ovato, haud

incrassate ; palpi maxillares articulo ultimo valde securiformi, labiales articulo ultimo incrassato apice

acuminato. Prothorax transversus, lateribus deflexis, disco granuloso, areolis circa sex leevigatis elevatis

fere tumidulis. LElytra fortiter et profunde punctata, parum pubescentia. Tarsi infra villosi; ungues

lobulis membranaceis haud connatis muniti.

This new genus of ‘“ Dasytides” is not very near to any other known to me. It

belongs to the first division of Melyride, in which the first joint of the tarsi is as long

as or longer than the second; and among the genera composing this division it is

remarkable by the hatchet-shaped joint of the maxillary palpi, by the somewhat bulky

build, reminding one of a large Cis, and by the smooth tumid spaces on the thorax, as

well as by the pitchy red colour and coarse punctuation. The sides of the prosternum

are nearly parallel pieces meeting in the centre in a small mucronate projection, by

which the cox are separated, the point not reaching so far as the cox. ‘The reflexed

portion of the pronotum is wide and finely rugulose, the hind angles re-entering slightly

the coxal cavities, which are, however, widely open behind; the margin very finely

crenulate. The mesosternum has a short projection in front, and a long thin one

behind wholly separating the middle legs. Elytral epipleure hollowed, polished, and

with crenulate external margins. The lobes of the tarsi are hard to observe owing

to their soft villose nature, but are membranous and as long as the claws.

1. Cymbolus rufopiceus. (Tab. XIII. fig. 12.)

Oblongus, convexus, nitidulus, rufo-piceus; capite prothoraceque saturatioribus, longius pilosellis, crebre

granuloso-subrugulosis, hoc areolis nonnullis glabris elevatioribus; elytris parcius profunde punctatis ;

antennis pedibusque rufis. Long. 7 millim.

Hab. Guatemaa, San Gerénimo (Champion).

The whole of this insect is of a pitchy-red colour, the head, the smooth irregular

spaces on the thorax, the breast, and the abdomen being a little darker, the appendages

lighter. The intermediate joints of the antenne are triangular, not longer than wide ;

the head is about half the width of the thorax, the latter as wide as the elytra and twice

as broad as long. The eyes are rather large.

Found upon the flowers of small trees in second-growth woods (Champion).

2. Cymbolus castaneus.

Brevior, oblongus, rufo-piceus, subtus ferrugineus, nitidulus; prothoracis disco intricato-ruguloso, punctis

MALACODERMATA. 325

majoribus, lateribus crebre granulosis; elytris crebre et profunde punctatis; antennis nigris, articulis

duobus basalibus rufis. Long. 64 millim.

Hab. Mexico, Oaxaca (Hége).

Nearly allied to C. rufopiceus; it is, however, more unicolorous, and in the two

specimens before me the thorax does not exhibit the smooth raised spots, but is much

more even, being, however, less granulose and more sparsely punctate in the centre

than at the sides, and having the interstices of the punctures intricate and smooth,

The colour of the antenne is different, being here nearly black; and the abdomen and

breast are rusty red. The elytra are broader and more closely punctured. The

pubescence is short and fine and erect.

3. Cymbolus punctipennis.

Oblongus, elytris ovatis, nigro-piceus, nitidus; capite parcius punctato; prothoracis disco inequali, tuberculis

nonnullis subelevatis ; elytris profunde punctulatis; antennis quam dimidium corporis longioribus. Long.

53-6 millim.

Hab. Guatemata, Calderas 6000 feet, Volcan de Agua 8500 to 10,500 feet (Cham-

pion).

This species differs in form from the two preceding, inasmuch as the thorax is less

deflexed at the sides, which are straighter, narrowed a little in front, and rounded at

the hind angles, while, the elytra being rather wider in the middle than at their base,

the thorax does not appear to be of the same continuous width. The thorax is trun-

cate in front, with a rather deep sinuation on each side just behind the eye; the

margins raised, especially at the sides. The smooth spaces are less defined than in

C. rufopiceus, but are very shining and distinct, although irregular in form, and some-

what confluent: there are four central ones, two exterior to these on each side, and one

lateral rather more acutely raised than the others. The elytra are deeply impressed.

The legs red, with the tibiee and femora usually darker. There are three specimens

from the Volcan de Agua and one from Calderas.

HOLOMALLWUS (to follow the genus Cyméolus).

Corpus oblongo-ovatum, supra convexum, dense villosum, Caput prominulum, haud multum receptum; labrum

distinctum ; oculi subtiliter reticulati; antenne breves, quam caput vix longiores, articulis quinque ultimis

transversis, clavam elongatam formantibus; palpi maxillares articulo ultimo subuliformi. Prothorax

transversus, convexus, antice recte truncatus, lateribus parum deflexis, angulis anticis et posticis rotun-

datis. Elytra haud profunde, crebre punctata, abdomen tegentia, ad apicem depressiuscula. Tarsi sat

longi; ungues lobis tenuibus, haud connatis, minutis.

At first sight this genus reminds one of an Arthrobrachys, the first joint of the tarsi

is, however, clearly longer than the second, and the joints are all very distinct. The thick

and long pubescence gives this insect a very remarkable appearance, as the hairs are of

varying lengths, and do not all stand evenly erect, but may be termed “ shaggy.”

326 SUPPLEMENT.

1. Holomallus aurivillus.

Nigro-fuscus ; elytris, abdomine pedibusque ferrugineis; dense aureo-villosus, sutura pone medium elevatiori.

Long. 5-6 millim.

Hab. Mrxico, Puebla (Salle).

The head and thorax are dark fuscous, almost black, the former very closely and

finely, the latter less closely and more deeply, punctured ; both are very hairy, but the

hairs upon the head are shorter and more scattered than on the thorax. The elytra

appear to be rather thin in texture, widening a little behind the middle, but rather

acuminate as well as depressed at their apex; their punctuation is nearly hidden by

the dense and long golden-yellow pubescence, but is quite distinct, and here and there

confluent; in the larger of the two specimens there is a faintly infuscate spot towards

their apex. The abdomen is rusty red, but the extreme base and the apex are dark

fuscous. The legs are red, the tibie clothed with long hairs externally.

There is a third specimen from Puebla, in Sallé’s collection, of a species perhaps not

distinct from the foregoing, but which is comparatively destitute of hair, and has,

moreover, the elytra of the same dark fuscous colour as the head and thorax, excepting

alone the apical, depressed, gibbous portion, which is rusty red, and clothed indistinctly

with short greyish pubescence. Whether this specimen belongs to a distinct species

or not it is impossible to say from the single individual.

DASYTES (to follow the genus Holomallus).

Dasytes, Paykull, Faun. Suec. ii. p. 156 (1798).

The type of Dasytes is D. niger (Linn.), a well-known European species. Mulsant’s

division of the insects usually comprised under this name has not at present met with

general acceptation, and as the only species in the Central-American fauna is not

sufficiently distinct to render its separation of any practical utility, it is not neces-

sary here to enter on the question of how far those divisions are natural. The

typical species are oblong hairy insects of small and generally uniform size, with

serrate slightly thickened antenne and subulate palpi; these are almost confined to the

European and Mediterranean regions, where they usually abound when found in flowers ;

the earlier stages of some at least (e.g. D. niger) are passed in decaying wood.

1. Dasytes hudsonicus.

Dasytes hudsonicus, Leconte, Proc. Ac. Phil. xviii. p. 360 (1866) *.

Hab. Nortu America, Hudson’s Bay :—Mexico, Northern Sonora (Morrison).

This is a black rather depressed species with almost simple antenne, nearly smooth

front tibie, and a short thorax with an impressed line on each side, between which and

the margin the edge of the thorax is more thickly and rugosely punctured. It appears

to be common in the border country of Northern Mexico and Texas, and therefore to

have a wide range of distribution.

MALACODERMATA. ; 327

It is less hairy than the species of Pristoscelis usually are, and the elytra are very

obsoletely sulcate towards their apices.

PRISTOSCELIS (p. 123).

Pristoscelis nigrozneus (p. 124).

To the Mexican locality given, add:—Monclova in Coahuila (Dr. Palmer), Puebla

(Sallé). .

This insect has of course nothing to do with Dasytes nigroeneus, Kust. (Kafer Eur.),

an Italian species. It is perhaps unfortunate that I overlooked the fact of there being

a European species of Dasytes with this name, but as I retain the genus Pristoscelis I

do not think it necessary to change it.

1 (a). Pristoscelis zneipennis.

Niger; capite prothoraceque crebre et subrugose, elytris parcius profunde, punctatis, his eneis; dense nigro-

pilosellus; antennis quam caput et prothorax brevioribus. Long. 5 millim.

Hab. Mexico, Ciudad in Durango 8100 feet (forrer).

Rather larger than the largest specimens of P. nigrowneus, and chiefly distinguished

from that species by the closer punctuation of the thorax and the sparser and deeper

punctuation of the elytra. In this respect, as well as by the brassy colour of the

elytra, it reminds one at once of the European genus Haplocnemus. ‘The thorax is

also inclined to a brassy tint, but the head is black and dull, the antenne wholly black

and rather hairy, and the legs black. |

Three specimens.

1(s). Pristoscelis rufipennis.

Dasytes rufipennis, Leconte, Proc. Ac. Phil. 1858, p. 71"; ibid. 1866, p. 356°.

Hab. Norru America, Arizona?.—Mexico, Sonora!, Puebla (Sai/é).

“ Distinct by the large size (six millim.), and by the red elytra. Punctuation distinct

but close, occasionally confluent, and of the kind termed ‘stellate ;’ tibiee reddish.”

Two specimens from Sallé’s collection.

1 (c). Pristoscelis suturalis.

Dasytes suturalis, Leconte, Proc. Ac. Phil. vi. p. 169 (1853) *.

Pristoscelis suturalis, Lec. loc. cit. 1866, p. 354”.

Hab. Norra America, San Diego in California !?.—Mexico, Northern Sonora (Mor-

vison).

Elytra clothed with fine ashy rather erect pubescence at the sides and suture;

legs red.

Taken by the late Mr. Morrison in some numbers on the Mexican border.

328 SUPPLEMENT.

1(p). Pristoscelis femoralis.

Nigro-plumbeus, subzeneus, breviter nigro-pilosus, nitidus, creberrime punctatus ; tibiis tarsisque fulvescentibus.

Long. 5 millim.

Hab. Mexico, Puebla (Sailé).

The head and thorax in this species are so closely and finely punctured that separate

punctures are only visible under a very strong magnifying-power; this, and the rather

broader thorax, which is less narrowed in front and less deflexed at the sides, together

with the reddish legs (excepting the femora), will distinguish it from P. nigroeneus ; in

other characters it is very similar to that species, but the pile will be observed to be

both denser and blacker. 7

I have at present only found two specimens in Sallé’s collection which I can assign

to this species. There are, I suspect, a large number of species of Pristoscelis to be

separated by very minute characters, of which this is one. 3

1(z). Pristoscelis fulvipes.

Nigro-zneus, breviter pilosus, tenuiter pubescens, creberrime leviter punctatus; pedibus fulvis; antennis nigris,

latiusculis, articulo tertio piceo. Long. 6 millim.

Hab. Guatemata (coll. G. &. 8.).

The large size and the red legs of this species are sufficient for its recognition, it

being rather larger than P. rujfipennis. The structure is generally the same as in that

species; the mandibles are pitchy-red, except at their outer edge and tips, which are

black ; the antenne have the six joints preceding the last one transverse, not noticeably

serrate, the terminal joint not much longer than wide, blunt at its apex; the thorax

is distinctly, not confluently, but thickly punctured; the elytra with close, somewhat

confluent and stellate, punctuation.

One specimen, without precise locality.

4. Pristoscelis fuscus ?

Dasytes fuscus, Leconte, Proc. Ac. Phil. vi. p. 1691?

Byturosomus griseus, Motsch. Bull. Mosc. 1859, ii. p. 895.

Byturosomus rufipes, Motsch., teste Leconte.

Hab. Nortu America, United States, California!.—MeExico, Pinos Altos in Chihuahua

(Buchan-Hepburn). |

Leconte omits to mention the colour of the legs of his insect ; in the single specimen

of what may possibly be this species, taken in Northern Mexico by Mr. Buchan-

Hepburn, the legs are griseous and clothed with scales and hairs, the front femora

being red within; the thorax is wider and more depressed than in any other species

of the genus known to me; and the elytra are densely clothed with grey shining

MALACODERMATA. 329

pubescence. The antenne are almost clavate, the three joints before the apical one

being strongly transverse.

LISTRUS (p. 125).

8 (a). Listrus

Hab. Mexico, Jalapa (Hége).

A single specimen of a brassy Listrus with red legs, and the thorax not so wide as

the elytra, these latter being very distinctly punctured, is, I think, a distinct species from

L. eneus; but I do not think it advisable to describe on a single specimen in such a

difficult genus as this evidently is.

Listrus canescens (p. 126).

To the localities given, add :—Mexico, Saltillo in Coahuila (Dr. Palmer); Panama,

Volcan de Chiriqui (Champion).

5 (a). Listrus impressus.

Nigro-fuscus, cano-pubescens ; prothorace utrinque linea curvata impressa. Long. 17 millim.

Hab. Mexico, Northern Sonora (Morrison).

A species in general appearance very like L. canescens, and like it sometimes evenly

clothed with short ashy hairs and sometimes with denuded spots, but these are very

irregular in position and number, and I cannot regard them, as Leconte has done in

other species, as of any specific importance. The distinguishing character of this

species is that the thorax has a distinct impressed line on each side at some little

distance from the margin and parallel to it, something similar to that on Dasytes

hudsonicus, but extending from the front to the hind margin. Its small size is also

noticeable, the species being among the smallest yet described in this genus.

Several specimens.

Listrus punctatus (p. 126).

To the localities given, add:—Panama, Pefia Blanca 4000 feet (Champion).

Taken abundantly on flowers in the open savanna-region, in company with

L. pygmeus.

9, Listrus pygmezus.

Niger, nitidus; prothorace minute, elytris distinctius, punctatis, his subtiliter subrugosis, parce tenuissime

pubescentibus ; pedibus rufis. Long. 1-1} millim.

Hab. Panama, Pefia Blanca, Tolé (Champion).

This minute species, of which many specimens are scarcely one millimetre in length,

is easily distinguished by its black colour with rufous (not bright red) legs and the

very minute punctuation which, on the prothorax, is only visible under the microscope ;

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, April 1886. 2U

330 SUPPLEMENT.

when thus viewed, however, it is seen to be sparsely punctured and clothed with white,

almost pruinose, hairs. The elytra are flattish on their disc, shining, with scarcely any

metallic tinge. |

Met with in vast profusion on flowers in the open savannas east from Los Remedios to

beyond Tolé by Mr. Champion.

10. Listrus ferrugineus.

Ferrugineus, fulvo-pubescens ; elytris circa scutellum subinfuscatis, antennis brevibus, articulis duobus penul-

timis transyersis, ultimo ovato apice nigro. Long. vix 2 millim.

Hab. Mexico, Northern Sonora (Morrison).

This is the only species of Listrus known to me at present entirely red in colour,

but I see no reason to separate it from that genus. The colour is a clear bright, almost

sanguineous, red. Sometimes the crown of the head is dark, and the extreme tip of

the claw-joint is, as usual, blackish.

It was sent by Mr. Morrison, labelled “ Pristoscelis, n. sp.” It is not, however, a

Pristoscelis, not having the front tibie spinous, nor having upright pile on the body

above. It appears to have been met with commonly on the border-district of Mexico.

It is singularly like Dasytiscus precox, a species occurring in Asia Minor, but has the

antenne much thicker and with shorter joints.

ASTYLUS (p. 127).

Astylus vittatus (p. 127).

To the locality given, add :—Panama, Pefia Blanca (Champion).

Since the description was published in the earlier part of this volume, this species

has been captured very abundantly on various kinds of flowers in open savannas from

the sea-level up to an elevation of 6000 feet; some of the specimens, principally those

from Pefia Blanca, are of a paler yellow colour.

2. Astylus octopustulatus. (Tab. XII. fig. 25, ¢.)

Niger; capite prothoraceque crebre inequaliter, elytris crebre subrugose, punctatis, his maculis quatuor margi-

neque laterali aurantiaceis. Long. 8 millim. o¢ 92.

Mas. Elytris apice integris.

Femina. Hlytris apice profunde excisis.

Hab. Panama, Bugaba, San Feliz, Los Remedios, Tolé, Pefia Blanca ( Champion).

Head with a few long erect hairs, some of which surround the eye, closely but very

finely punctured, subrostrate, owing to the mouth being very prominent; the labrum

elongate, with a membranaceous space separating it from the epistome; palpi black ;

antenne black, with four or five joints at the base yellowish, gently serrate from the

fourth joint. Thorax oblong, with deflexed sides, not margined, but the lateral edge

sharply defined and a little produced, thickly covered with punctures of two sizes, and

MALACODERMATA. 331

clothed with short and not very thick black pile. Elytra deeply punctured, the punc-

tures becoming larger and more confluent towards the apex; there is one sharply

defined costule commencing below the humeral callus and continued to the exterior of

the third elytral spot, where it ends, but the disc is even, and the suture scarcely raised ;

the spots are disposed in a row, but not so evenly straight as in A. lebasii: the first two

pairs are equally distant from the suture, to which they are rather nearer than to the

marginal stripe; the third pair are rather more distant from the suture, often transverse,

and approaching very near to the stripe; and the subapical pair are generally united with

the stripe, but the latter terminates opposite to the third spot. ‘The body beneath is

black, rather shining, and clothed with grey pubescence; the fifth segment has the

apical margin oblique on each side of the middle, where it is divided for some distance,

thus gaping when the sixth is extruded; the latter is ridged and is smooth in both sexes.

That it is the male which has the elytra entire is proved by a specimen which has the

genitalia extruded.

This species closely resembles a Colombian species labelled A. debasiz in my collection,

but which, so far as I am aware, is undescribed; it is, however, larger and has less

costate elytra.

A. octopustulatus was found by Mr. Champion in vast profusion on flowers in open

savannas of the “ tierra caliente” east of Los Remedios up to 3000 feet, but he tells me

it was very local. It is the habit of the species both of this and other genera of this

family to occur profusely in places; they do not probably live very long in the perfected

condition, nor do they appear to seek concealment.

MELYRODES (p. 128).

2. Melyrodes perforata.

Nigro-picea, vix nitida; capite prothoraceque obsolete subrugose, elytris profundius parce grosse, punctatis, his

marginibus leviter reflexis ad apicem subexplanatis, prothorace lateribus acute serratis. Long. 13 millim.

Hab. Panama, San Lorenzo, Tolé (Champion).

Pitchy black, the elytra rather lighter, with a brownish tint. The head and thorax

are sculptured similarly to those of I. crenata, but the sides of the latter are rounded

and rather more deeply serrate, the front margin is faintly reflexed, and the hind

one very obsoletely margined; the breadth of the thorax is greater than the length,

as in VW. crenata, but the disc is more shining, with larger and remoter punctures. The

most striking difference is, however, in the elytra, which are more parallel, and irregu

larly, not serially, punctured; the suture is distinctly raised throughout, meeting the

reflexed margin at the apex; there are no traces of cost, and the coarse perforate

punctures are uniformly distributed. The size is scarcely more than half that of

M. crenata. |

Two specimens.

202

332 | SUPPLEMENT.

ANTIXOON (to follow the genus Melyrodes, p. 128).

Caput breve, antice parum productum, Antenne breves, 11-articulate, articulo basali subgloboso, secundo valido

oblique truncato, tertio ad octavum gradatim brevioribus, hoc tribusque ultimis transversis, clavam

laxam formantibus. Palpi apicibus subulatis. Prothorax transversus, convexus, antice recte truncatus,

lateribus crenulatis, basi leviter rotundata et subtruncata. Elytra convexiuscula, tenuiter pilosa, grosse

punctata. Tarsi quinque-articulati; ungues simplici, haud lobati.

This genus is formed for a small beetle of very puzzling aspect. The general form

is suggestive of Phlwophilus, which is itself a genus that has long been a difficulty to

coleopterists, but is now generally admitted into the Melyride, near Dasytes. The

clavate antenne, simple claws without lobes, coarsely granulated eyes, and the form of ~

the thorax—short and truncate, and with straight and crenulate sides—are all remark-

able in this family. The only species that has yet been found is a small yellow beetle

rather like a Cis, but more depressed.

1. Antixoon cribripenne. (Tab. XIII. fig. 13.) .

Ferrugineum ; capite et prothorace opacis, minute, creberrime, elytris parce grosse, punctatis. Long. vix

2 millim.

Hab. Panama, San Lorenzo, Pefia Blanca 3000 to 4000 feet (Champion).

Entirely and uniformly ferruginous red; the head half as wide as the thorax, with

small rather prominent eyes; the front rather produced, and apparently formed by a

rather long epistome, with distinct labrum; mandibles distinct but not large, only

tipped with pitchy; antenne not longer than the thorax alone, with the three apical

joints forming an abrupt club; thorax twice as wide as long, distinctly but very finely

punctured, the sides narrowing in front, crenulate, the hind angles almost right angles,

but gently rounded; elytra a little broader than the thorax, coarsely and here and there

_confluently punctate, without any trace of lines or striz.

Five specimens, captured on the flowers of low bushes in open savannas.

TILLUS (p. 129).

2. Tillus collaris. (Tab. XIII. fig. 7.)

Tillus collaris (Dej.), Spinola, Mon. Cler. i. p. 98, t. 2. f. 6°.

Hab. Norra America!.—GvatemMata, Capetillo (Champion).

Two specimens captured by Mr. Champion are, I believe, referable to this species,

agreeing very well, as the larger one does, with Spinola’s figure. There is, however,

this important difference, that, whereas both in the figure and in his description the

number of serrate joints in the antenne are given as seven, including the end-joint, they

are undoubtedly eight in our insect, there being but two short joints between the basal

one and the first triangular one. The elytra are also rather more enlarged behind than

his figure would lead one to expect. The smaller specimen has the thorax nearly black,

a very slight red stain being alone visible. The species has very little of the general

MALACODERMATA. 333

appearance of a Tillus, but the structure is not very different from that of the European

TL. elongatus, and the claws are those of the genus. The size of our specimens is three

and a half to four millimetres. The colour is entirely black, excepting a red patch

covering nearly the whole of the upper surface of the thorax in the larger specimen.

The smaller one is not so deeply coloured, being perhaps not quite mature, its legs

accordingly are pitchy. .

The insect, as is the case with 7’. elongatus, at least in England, is probably not often

met with.

CYMATODERA (p. 130).

Cymatodera parallela (p. 132).

To the localities given, add :—Panama, Bugaba, Volcan de Chiriqui 4000 to 6000 feet,

Tolé (Champion). |

The Bugaba specimens are rather less parallel than typical ones, and the subapical

patch is developed into a broad somewhat arcuate fascia.

Several specimens occurred.

8 (a). Cymatodera sericans.

Elongata, postice latiuscula, brunnea, obsolete seriatim punctata, subtus picea, subtilissime breviter sericeo-

pubescens ; antennis pedibusque ferrugineis, interstitiis crebre, subtiliter irregulariter, punctatis. Long.

15 millim. |

Hab. Payama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Head and thorax very finely and very closely punctate, the ocular canthus raised into

a ridge which is prolonged over the insertion of the antenne to the base of the man-

dibles; disc of the thorax finely wrinkled, but the wrinkles not so conspicuous as the

punctures. Elytra gradually widening from the base to one fourth before the apex,

which is quite simple, neither cut out nor sinuate; the eight series of punctures are

not deep nor very even, and towards the apex become longitudinally confluent and -

evanescent. The breast and abdomen are piceous; the latter with indistinct rufous

spots on the sides of the four basal segments, which are clothed with shining silky hair,

as is also the fifth segment, which is, in the male, rather broadly and angularly emargi-

nate; a small sixth ventral segment is present, also cut out at its apex, but not deeply.

The antenne have the apical joint scarcely longer than the tenth, acuminate.

Difficult as the determination of the Cymatodere is, there is no species of our fauna

yet described to which this could with propriety be assigned. It most nearly resembles

C. lunulata, but the form of the body, its nearly unicolorous tint, rufous legs, &c.

appear to me to indicate a distinct species, even if its larger size were not taken into

account.

One example.

334 . SUPPLEMENT.

8(s). Cymatodera saturata. (Tab. XIII. fig. 8.)

Elongata, saturate brunnea; elytris parum depressis, rufo-brunneis, fasciis duabus brunneis, grosse seriatim

punctulatis, apicibus levibus; antennis longis, articulis tertio ad sextum fusiformibus, tribus subapicalibus

his brevioribus, interne parum angulatis, apicali ovali duobus precedentibus subequali. Long. 10-11

millim.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Head and thorax pitchy-brown, obsoletely punctured ; the thorax rather long, the sides

sinuate and compressed, but not much enlarged between the constricted parts. Elytra

rather wider and much more coarsely punctured than in C. lunulata; the large punc-

tures of the three inner series become irregular and terminate at from one half to two

thirds of their length, those of the succeeding three are continued further, the external

ones shorter, but varying; their whole surface is clothed with a short, thick, not very

distinct golden pile; the brown fasciz are broad and rather indeterminate, and, in one

of the two specimens, are very little visible.

This is a species allied to C. lunulata and to C. angulifera. From the former the

longer antenne, with much longer intermediate joints, from the latter the deeper colour,

broader fasciz, and the absence of the dark base and subapical fascie to the elytra, will

serve to distinguish it.

Two specimens.

Cymatodera geniculata (p. 133).

To the localities given, add :—Panama, Volcan de Chiriqui 8000 feet, Pefia Blanca

(Champion).

At this high altitude on the Volcan de Chiriqui Mr. Champion captured two specimens

of a Cymatodera which agree more nearly with C. geniculata than any other species, but

differ from the two typical examples of that species in not having the series of punctures _

produced to near the apex of the elytra; they also differ between themselves, one having

a dark patch on the elytra behind the middle, the other having the elytra pale brownish

yellow, with the patch almost absent. The head and legs are dark pitchy-brown, as in

C. geniculata, and the thorax is also dark, but pitchy in places. Another specimen, from

Pefia Blanca, has the base of the elytra more clouded with pitchy than either of these

specimens, and has rufous legs.

In the absence of specimens of both sexes from several localities, it is impossible to

say whether these represent one or more species.

Cymatodera bipunctata (p. 135).

Var.? Elytris puncto humerali, fasciaque tenui leviter arcuata pone medium, sutura et limbo marginali pone

fasciam tenuissime, nigris.

Hab. Costa Rica (Van Patten).

A single specimen, varying from the type of C. bipunctata as above, but agreeing with

MALACODERMATA. 339

it in size, colour, and general details, will not, I think, prove to be distinct. The sex

is uncertain ; the fifth and sixth segments are quite simple, but the latter projects

beyond the apex of the elytra.

PRIOCERA (p. 139).

Priocera trinotata (p. 139).

To the localities given, add :—Panama, Volcan de Chiriqui (Champion).

Priocera pustulata (p. 139).

To the localities given, add:—Panama, Volcan de Chiriqui (Champion).

Priocera stictica (p. 146).

To the Panama localities given, add:—Caldera in Chiriqui, Bugaba, David, San

Feliz, Tolé (Champion).

Priocera clavipes (p. 140). (Tab. XIII. fig. 9.)

We now give a figure of a specimen of this species from Volcan de Chiriqui.

COLYPHUS (p. 141).

Colyphus telephoroides (p. 142).

To the localities given, add:—Mexico, Cordova (Sallé), Juquila (Boucard, coll.

Sallé).

6 (4). Colyphus bilineatus. (Tab. XIII. fig. 10.)

Nigro-fuscus ; ore, epistomate, prothoracis angulis anticis, interdum lateribus, elytrorum vitta tenui ad apicem

plerumque conjuncta, margine laterali pedibusque, flavis; tibiis tarsisque nigricantibus ; abdomine flaves-

cente, apice nigro. Long. 6—7 millim.

Hab. Guarumaa, Zapote (Champion); Panama, Volcan de Chiriqui 2000 to 6000 feet

(Champion).

Head finely but distinctly punctured, with a double impression between the eyes,

behind which it is black; the mouth is yellow, with the exception that the tips of the

maxillary palpi, the terminal joint of the labial palpi, and the inner edge of the man-

dibles, are black. Antenne wholly black ; the joints from the fourth gently serrate and

finely pubescent, the last joint oval, a little acuminate and compressed, the terminal

joints not wider than those preceding them. Thorax very little narrower than the elytra,

finely punctured, the disc broadly black. Elytra very parallel and flat above, as far

as the narrow straight vitta, which, starting from the shoulder, is continued to the apex,

where it unites with the narrow yellow margin in the pale apex; sometimes, however,

it terminates before the apex, and sometimes the margin is not yellow. ‘The breast is

336 SUPPLEMENT.

black ; the abdomen yellow, a little infuscate in the middle, and the apical ventral

segment usually black.

The species of Colyphus are very closely allied and very difficult to separate. I had

formerly united the few specimens of this from Zapote with C. distinctus, and it is, no

doubt, extremely difficult to draw a line here between species and local varieties. The

elytra, however, in C. bilineatus are flatter above; the stripes are narrower and rather

further apart, so that the black sutural band appears always wider, and they curve

inwards at the apex when they are united; and the whole insect is rather bulkier. I

have seen about a dozen examples which I refer to this species. .

6 (s). Colyphus nigriventris.

Nigro-fuscus, nitidus ; elytris opacis, plerumque tenuiter flavo marginatis ; ore, prothoracis lateribus pedibusque

flavis ; geniculis, tibiis tarsisque nigris. Long. 6-7 millim.

Hab. Guatemata, Zapote, San Gerénimo, Teleman in Vera Paz (Champion) ; PANAMA,

Caldera in Chiriqui, Bugaba (Champion).

This species is so closely allied to C. bilineatus that I feel much hesitation in giving

it a separate name; the abdomen is always black and shining, in combination with

elytra without any trace of a vitta, and often without the margin even being yellow.

From C. limbatus, or, more properly speaking, from those specimens referred in the

present volume, with some doubt, to that type, the close punctuation of the head and

thorax, the rather shorter body, and the pale femora clearly distinguish it. C. lateralis

has no yellow limb to the elytra.

Colyphus limbatus (p. 144).

To the localities given, add:—GuatemaLA, Purula (Champion). One specimen

agreeing very closely with the type.

10 (4). Colyphus relucens. (Tab. XII. fig. 22.)

Rufus, supra sanguineus, subtus ferragincus, nitidus ; antennis pedibusque nigris; elytris basi nigro-ceruleis,

sublevibus, obsoletius subseriatim punctatis. Long. 7 millim.

Var. Pedibus rufis, antennis piceis basi rufis.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Head and thorax entirely brick-red, without spots; very smooth, a very few scattered

small punctures on the front portion of the latter being all that are to be observed ; the

head in two examples has a double impression, in the others it is smooth. Antenne

very slightly serrate, and with the terminal joints scarcely wider than the rest, the apical

one usually pitchy red, and the basal one red ; black, however, in one specimen. Elytra

smoother than usual; entirely red, excepting the base, which is blue, leaving, however,

the scutellum and the suture narrowly red. Allied to the blue variety of C. stgnaticollis

figured in the earlier part of this volume. |

Five specimens.

MALACODERMATA. 337

16. Colyphus gracilis. (Tab. XIII. fig. 19.)

Plumbeo-niger, nitidus, parallelus ; ore epistomateque flavis, pedibus rufis, antennis tarsisque fuscis, illis subcla-

vatis ; prothorace oblongo, lateribus parum ampliatis, disco leviter rugoso ; elytris tenuiter flavo limbatis,

subrugose punctato-striatis. Long. 53 millim.

Var. Pedibus fuscis, basi, geniculis tarsisque subtus testaceis.

Hab. Payama, Volcan de Chiriqui 8000 feet (Champion).

The essential characters by which this species may be known from its allies are its

narrow form and almost clubbed antennz ; owing to the latter, it might almost as well

be placed in Pecilochroa. The head is impressed between the eyes with a large fossa.

The antenne are longer than the head and thorax together ; their last three joints form

a sort of lax club, but the last joint but one is distinctly wider than the ninth. The

head and thorax are only obsoletely punctured, but the latter is transversely wrinkled,

its anterior constriction is very slightly marked, and the sides are scarcely wider than

the front. The elytra have the punctuation very confluent, with the interstices irre-

gular; they do not appear so “‘honey-combed” as in such species as C. nigriventris ;

they are narrowly margined with yellow at the sides and apex; the thorax is, however,

entirely leaden-black. Two specimens are all that have come under my notice; they

differ only in the colour of the legs; the abdomen is black in both examples.

| PCECILOCHROA (p. 145).

2. Pecilochroa varia.

Nigro-picea, nitida, crebre subrugose punctata; ore, antennis, palpis pedibusque luteis; elytris indistincte

rubro variis. Long. 8 millim.

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

Head scarcely wider than the thorax; the labrum and the epistoma pilose, yellow ;

distinctly but very confluently punctured above and between the eyes. ‘Thorax rather

narrow and little widened, pilose, subrugosely punctate, the front margin piceous.

Antenne not longer than the head and thorax together, distinctly clubbed ; clear yellow,

as well as the palpi, which are formed as in Colyphus. Elytra clothed with depressed

but irregular pilose hairs; punctuation close and subrugose, continued to the apex ;

pitchy black, with a long basal spot, an indistinct fascia, and the subapical region very

indeterminately, rufous. Legs entirely yellow.

Even if this species should prove to vary in colour, the clubbed antenne, subrugose

punctuation, and little dilated thorax should cause it to be recognized.

One specimen.

8. Pecilochroa plumbea. (Tab. XIII. fig. 11.)

Plumbeo-niger ; capite prothoraceque rufis, illo basi, antennis, palporum et mandibulorum apicibus, tibiis tar-

sisque, nigris ; femoribus rufis; abdomine eneo-micante. Long. 8 millim.

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

BIOL. CENTR.-AMER., Coleopt., Vol. ITI. Pt. 2, May 1886. 2X

338 SUPPLEMENT.

The head in this species is narrower than the thorax ; red, but pitchy or leaden as far

as it is inserted in the thorax; very finely and indistinctly punctured. Thorax entirely

orange-red, scarcely visibly punctured, the sides very little widened. Elytra leaden

grey, with a fine silky pubescence, which is pruinose (like that in Colyphus limbatus),

the alternate interstices finely raised, the punctuation very fine, close, and confluent.

Legs black, femora orange-red. Abdomen distinctly brassy ; metasternum bluish.

A very distinct species, easily recognized by the short clubbed antenne and details

mentioned.

Two specimens only *.

4. Pecilochroa frontalis.

Aterrima, nitida; capite antice cum ore flavo, prothoracis lateribus aurantiaceis; elytris crebre fortiter punc-

tatis. Long. 53 millim.

Hab. GuatEMALa, near the city 5000 feet (Salvin).

Entirely black, with the exception of the front of the head and the sides of the thorax ;

antenne scarcely at all clubbed, as they are in P. thoracica (Clerus thoracicus, Oliv.) ;

the yellow part of the front extending back beyond their insertion nearly to the base

of the eyes; crown and disc of the thorax glabrous; the latter is shorter than in

P. thoracica (which this species much resembles), and the anterior constriction is deeper,

with the sides more bulged below it ; the black centre of the disc, moreover, is continued

quite to the front edge, whereas in P. thoracica it is only united to the front by anarrow

strip. Elytra more deeply punctured than in P. thoracica, and faintly substriate.

One specimen. |

P. thoracica, Oliv., which this species so much resembles, is found in various parts of

the United States and in Canada. |

THANASIMUS (p. 147).

4. Thanasimus

Hab. Muxtco, Cerro de Plumas (Hége), Totosinapan (Sallé).

There are two specimens of a Thanasimus which are not in a condition to render it

desirable they should be described as new; they are allied to Clerus nigripes (which

would itself be better transferred to this genus), but differ, however, from any of the

varieties of that species known to me, infer alia, by having.a black abdomen.

CLERUS (p. 148).

Clerus sphegeus (p. 150).

To the Mexican localities given, add :—Pinos Altos in Chihuahua (Buchan-Hepburn).

One example.

* The antennzx are represented too short in the figure.

MALACODERMATA. _ 8389

Clerus nodulifer (p. 150).

Taken abundantly by Mr. Champion at Bugaba and up to 4000 feet elevation on the.

Volcan de Chiriqui, in rolled-up withered leaves and on boughs of fallen trees in forest-

clearings.

11 (a). Clerus puellus.

Saturate ferrugineus, parum nitidus, creberrime punctatus ; capite abdomineque nigris ; elytris fasclis duabus

albis, una mediana curvata, altera subapicali obliqua, inter fascias et ad apicem nigris, cinereo pubescentibus.

Long. 5-6 millim. .

Hab. Guatemata, San Gerénimo, San Joaquin, and Tocoy in Vera Paz (Champion).

Extremely like C. quadrinodosus, but to. be separated from that species by having

scarcely any vestige of a basal tubercle, the basal striga only just indicated by a minute

smooth ivory-white spot, and by the coarser substriate sculpture of the elytra. This is

especially the case in the black part between the fascie, which in C. guadrinodosus is

almost smooth. It is also very like a rufous variety of C. cautus, but the latter species

is very smooth and shining; the body, excepting the abdomen, is quite red in

C. puellus.

Clerus venator (p. 159).

To the Mexican locality given, add :—Ventanas (forrer).

A specimen which has lost its head and has a pale subapical fascia to the elytra, thus

very nearly resembling C. @sopius, is doubtfully referable to this species.

Clerus insidiosus (p. 160).

To the Panama localities given, add :—San Feliz, Tolé (Champion).

39 (a). Clerus plagiatus. (Tab. XII. fig. 21.)

Nigro-czruleus, fere impunctatus, nitidus ; antennis flavis, articulis tribus basalibus piceis ; elytris luteis, macula .

communi scutellari, apice plagaque in singulis antice attenuata postice ampliata, nigro-piceis. Long.

8 millim. .

Hab. Panama, Bugaba (Champion).

This species is not like any other known to me, and is, in addition to the peculiar

pattern, remarkable as having the elytra nearly impunctate, and free from hairs. The

head and thorax are stout and broad, dark steel-blue, the legs and body of the same

tint; the palpi are black, but the antenne are bright yellow, excepting the three »

basal joints. The elytra are flat on their disc, and rather broad; the scutellum, a

patch running out to a point on the suture (where it becomes pitchy brown), and the

apex, blackish ; there is also a broad stripe near the apex (where it just touches the

margin), but attenuated to the humerus, where it runs out.

One specimen.

2X 2

340 SUPPLEMENT.

Clerus atriceps (p. 161).

The specimen figured (Tab. VIII. fig. 21) is from Capetillo; others from the State of

Panama, recorded as a variety (antea, p. 161), I now separate, no typical examples of

C. atriceps having been found with them.

41 (a). Clerus villicus.

Clerus atriceps, var., antea, p. 161.

Pallide ochraceus; capite elytrorumque maculis quatuor magnis nigris; elytris perobsolete punctatis. Long.

8 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui 2000 to 4000 feet (Champion).

This species is a near ally of C. atriceps, and differs from it in being of a paler yellow

colour, with the elytral black fascie much reduced in breadth and interrupted at

the suture, and in fresh examples edged with pale yellow, almost white. The elytra are

also much less punctured. The examples sent by Mr. Champion are all very uniform

in size and colour, and have the head black.

Clerus nigripes (p. 164).

To the synonymy given, add :—

Clerus (Thanasimus) repandus, Horn, Trans. Amer. Ent. Soe. il. p. 342°.

Hab. Nortu America, United States, California .— Mexico, Sonora}.

I cannot consider this as more than another variety of C. nigripes, Say. Dr. Horn

says it is closely allied to C. trifasciatus, Say, which species White in the ‘ Catalogue of

Cleridee of British Museum’ considered to be only a variety of C. nigripes.

EPIPHLEUS (p. 166).

1 (a). Epiphleus princeps. (Tab. XII. fig. 19.)

Rufus, cinereo-sericeus, punctatus ; prothorace piceo, lateribus dense sericeo-pubescentibus; elytris postice sericeo

micantibus, singulis fascia lata ad suturam interrupta, maculaque magna subapicali triangulari, suturam

non attingente, maculam parvam sericeam includente, nigris; pedibus rufis, femoribus posticis, tibiis

externe, infuscatis. Long. 10-11 millim.

Hab. Panama, Bugaba 1000 feet (Champion).

Head dark chestnut-red, thickly and almost rugosely punctured ; antenne with the

long, curved broad joint yellow, the intermediate joints black, and the club fuscous ;

tips of the mandibles black. Thorax thickly but finely punctured, more distinctly so

at the front, which is red, the rest of its disc being black ; there is a delicate line of

ashy hairs in the centre, and the sides are densely clothed with silky and shining ashy

hairs, enclosing a denuded spot; these hairs lie pointing forwards, but in some lights

appear to radiate from the black spot they enclose. Elytra deeply impressed with series

ot coarse punctures in the basal half; the first black patch or fascia is placed before

MALACODERMATA. | 341

the middle, slightly arcuate, reaching the margin, but never touching the suture; the

second is a large angular spot with its apex near the suture, and variously clothed with

the shining silky hairs, but always with a bright spot so covered on the margin. The

abdomen is pale, the breast pitchy-red. This is the largest species of Epiphleus yet

described. Mr. Champion captured it in abundance running actively on the bark

of an immense fallen tree in a clearing of the virgin forest of the low country, and

in company with very many other interesting Coleoptera; he also observed that it flew

‘in the hottest sun very actively. Mr. H. W. Bates observed species of this genus in

the same way on the Amazons, at Ega, running on the bark of felled trees in a curious

sidelong way, with small Coleoptera in their mouths (Trans. Ent. Soc. 1877, p. 246 ;

sub Epiphleus chevrolati). .

Mr. Champion sent home a large series of this species in beautiful condition.

Epiphleus marginipes (p. 166).

To the Panama localities given, add:—San Lorenzo, Tolé (Champion).

I do not think we have sufficient evidence for dividing this species at present ; but

the examples from the State of Panama certainly at first sight appear very different

from those from Mexico and other localities in Central and South America with the

first club-joint of the antenne pale. The species also varies extremely in size: some

specimens from San Lorenzo being barely four, while others from Tolé are six and a half,

millimetres long. Neither does the punctuation afford a constant diagnostic. The

type of EL. terzonatus has the club fuscous, and on closely comparing and re-examining

it with specimens from Tolé the first club-joint of the antenne appears longer, being as

long as the funiculus. The problem can only be solved by observation of the living

insects. Mr. Champion observed them to frequent powdery fungoid growth on the bark

of fallen forest trees in the “ tierra caliente.”

PLOCAMOCERA (p. 167).

Plocamocera sericella (p. 168).

To the localities given, add :—Panama, Bugaba (Champion).

Mr. Champion met with this species in considerable numbers, running on bark of

fallen timber in clearings of the forests of the low country, in the hot sun.

HYDNOCERA (p. 168).

1 (a). Hydnocera suturalis ?

Hydnocera suturalis, Klug, Abhandl. Ak. Berl. 1841, p. 313?

Hydnocera marginata, var., Gorh. antea, p. 168 (pars).

Hab. Panama, Volcan de Chiriqui (Champion).

342 ‘SUPPLEMENT.

What the ZH. suturalis of Klug really is I do not know; the locality “ America

borealis ”? is very vague. Whether the species Spinola figures under this name [Atlas,

t. 39. f. 6], but which he described as H. limbata, is the same species is to me extremely

doubtful; but however that may be, the insect found by Mr. Champion on the

Volcan de Chiriqui at from 4000 to 6000 feet elevation is certainly distinct from

H. marginata. ‘The head is narrower between the eyes, and entirely black, excepting

the mouth. ‘The thorax is narrower, and is black with the front margin and three

lines yellow. The elytra are narrow, serrate at their apex, with two small distinct

teeth, the suture black, more widely so at the base, their margin blackish, but not so

at the base; the shoulder is not tipped with black ; and they are more thickly and

more coarsely punctate. The legs are yellow, the femora only just touched with

fuscous. a

About nine specimens from the Volcan de Chiriqui agree very closely with: the one

previously recorded from Boquete. |

14 (a). Hydnocera furcata. (Tab. XIII. fig. 14.)

Fusco-cinerea, sat dense pubescens, eeneo-micans, creberrime punctata; elytris macula magna circa scutellum

alteraque minore mediana albidis, dense cinereo-tomentosis ; antennis, geniculis, tibiis tarsisque, obscure

testaceis. Long. 43-6 millim.

Mas? Abdominis apice mucrone duplici exstante.

Hab. Mexico, Northern Sonora (Morrison).

Of the form and not unlike H. obscura, but with the puncturing of the elytra very

much more close and intricate, resembling in this respect H. scabra and its allies; it is

also nearly allied to H. rudis, but easily distinguished therefrom by the white markings ;

these in this species nearly unite, and indeed appear united in fresh specimens owing

to the extension of the ashy, shining hairs. The curious processes from the subapical

segment of the abdomen are, I think, peculiar to this species; at all events nothing of

the kind has been recorded in any other species.

Ten or twelve examples sent us by the late Mr. Morrison.

14 (8). Hydnocera rudis.

Fusca, dense pubescens, zneo-micans ; antennis (apice excepto) testaceis, genibus tarsisque anticis rufis; elytris

fasciculis duobus scutelloque albido-sericantibus. Long. 44-6 millim.

Hab. Mexico, Northern Sonora (Morrison).

Head wide; thorax narrower, quadrate, a little narrowed behind, without the sides

being much swollen; both densely and granulosely punctate, grey, with a bright metallic

lustre, clothed with black upright pile, and ashy depressed hairs, not regularly but

“combed” in all directions; elytra similarly clothed, but the pile disappears towards

their apex, the latter not crenulate. Underside brassy ; legs with long hairs, dark

ashy-grey, except the front pair, of which the tibie and tarsi are rufous, but dark in

MALACODERMATA. 343

part, as are also the claws, the undersides of the tarsi, and the middle of the tibie.

This species is near H. scabra, Lec.

Two specimens.

23 (a). Hydnocera cylindricollis. (Tab. XIII. fig. 16.) -

Hydnocera bituberculata, ante, p. 176, pars. (Nec Chevr.)

Nigra, subcerulescens, pilosa, fere glabra; prothorace longiore, lateribus sinuatis; elytris parce, obsolete

punctatis, humeris alte carinatis, carina acuta, pone medium producta, scutello pube argentea dense vestito ;

antennis testaceis, ad apicem fuscis. Long. 43-5 millim.

Hab. Nicaraaua, Chontales (Janson) ; Panama, Bugaba, David, Volcan de Chiriqui

below 4000 feet (Champion).

This is the insect referred to under ZH. bituderculata as having the carina more

produced, &c., and the localities repeated here are therefore to be removed from

that species. The remark, “The shining pubescence is almost confined to a spot,”

applies solely to H. bituberculata. In H. cylindricollis the thorax is longer and more

shining, and not so much dilated laterally below the anterior constriction ; the elytra

are not so coarsely punctured near the base, and the carina is sharply defined, whereas

in H. bituberculata it is interfered with by the punctuation, and is frequently quite

indistinct. In the present species the scutellum is clothed with bright silvery scales or

hairs, but only distinct in fine specimens; the bright spot on the elytra is absent, but

the apex is pruinose and with shining silvery hairs.

About a dozen examples.

23 (s). Hydnocera vitrina. (Tab. XIII. fig. 15.)

Nigro-cerulea, grosse punctata, nitida; humeris longe carinatis; elytris macula laterali parum distincta,

" apiceque albidis, margine laterali pone medium reflexo et crenulato. Long. 53 millim.

Hab. Mexico, Tuxtla (Sallé); Panama, Bugaba, Volcan de Chiriqui (Champion).

H. vitrina is so much like H. bituberculata and H. cylindricollis that it will suffice to

point out in what respects it differs from those species. The general form is more

nearly that of H. cryptocerina, but the upper surface is more shining and less roughly

punctured than in that species. There are, however, numerous scattered large punctures

~ all over the disc of the elytra, but becoming rarer near the apex. The thorax is not so

long, and more widened at the sides than in H. cylindricollis, and is uneven and

punctured, and has a central smooth space faintly raised. The elytra have numerous

large deep punctures, which sometimes (in the specimens from the Volcan de Chiriqui

alt. 4000 to 6000 feet) interfere with the carina, but usually leave it intact. In the

typical example, viz. that from Bugaba, the apex of the elytra, their fold. below the

middle, and a spot on the side are yellowish, as well as the legs on their inner sides ;

but in the other specimens the legs are black, pale only at the extreme base, and in

one the front legs are partly pale. These I think are only varieties. The example from

344 SUPPLEMENT.

Tuxtla is in very bad immature condition. The Bugaba specimen is therefore the only

one which can be considered typical, and is the one figured.

The following species or. doubtful varieties of Hydnocera it is well to notice; they

are represented by single examples, and considering the caution that should be observed

in- adding to so difficult a genus, I do not think any useful purpose can be gained by

naming them, there being insufficient evidence that they are distinct.

2 (a). Hydnocera

Hab. Mexico, Oaxaca (Sailé).

One of the group with the elytra shorter than the body and serrate; yellow, with

black head, apex, and spot of elytra. The specimen has been pinned and is in poor

condition.

2 (8). Hydnocera

Hab. Guatemaua, Duefias (Champion).

Yellow, the head black, the hind thighs black at their apices, the elytra spotless but

infuscate along the apical half of the margin.

2 (c). Hydnocera 2

Hab. Mexico, Northern Sonora (Morrison).

Black; antenne, mouth, and front legs red, excepting at their base.

3 (a). Hydnocera ——?

Hab. Panama, Bugaba (Champion).

10 (a). Hydnocera 2

Hab. Mexico, Yolos (Sallé).

Blackish, but with a metallic bluish lustre; the underside very shining, as also a

space in the centre of the thorax; a faint reddish mark at the base of the elytra ;

antenne dark, except their basal joint.

12 (a). Hydnocera ——?

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

Black; head and thorax yellow, the latter spotted at the base; legs yellow, the tibie

black on their outside edge.

MALACODERMATA. 345

14 (c). Hydnocera ——?

Hab. Muxico, Northern Sonora (Morrison).

A species allied to H. furcata; there is no scutellar patch, but a single white fascia-

like spot; the punctuation more rugose.

ICHNEA (p. 178).

6 (a). Ichnea vitticollis. (Tab. XII. fig. 24.)

Ichnea vitticollis, Gorh. Trans. Ent. Soc. 1877, p. 415.

Hab. Panama, Bugaba, San Feliz (Champion).

Judging from the figure of I. su¢wralis, Klug, this species must very nearly resemble

that insect, but is distinct, the terminal joint only of the antenne being white. The

underside of the prothorax is yellow, the whole of the breast and the abdomen black.

The legs are quite yellow, excepting the front tarsi, which are blackish, and the front

tibiee are clouded.

Three examples were obtained, two at San Feliz, and one at Bugaba; the latter is.

the one figured. These were beaten from withered leaves of fallen forest trees.

APOLOPHA (p. 181).

Apolopha chiriquiana (p. 182).

To the Panama localities given, add :—Tolé (Champion).

Several additional specimens from this and the other localities recorded. Mr. Champion

found the species frequenting a black powdery fungoid growth on the bark of felled

or fallen forest trees, usually in the shade.

ORTHOPLEURA (p. 184).

Orthopleura damicornis (p. 185).

To the localities given, add :—Mexico, Ventanas (Forrer).

One example. The elytra are bluer than in the examples in my collection, and the

head, legs, and breast are reddish, the punctuation of the elytra being at the same time

finer. There are many discrepancies between the insects I refer to this species and

the descriptions of Fabricius'and Spinola. Neither mention the narrow red fascia

on the elytra, which, however, is often very indistinct. Spinola describes the club

as being as long as the rest of the antenna; in the example sent me by M. Chevrolat,

under the name Peloniwm pennsylvanicum, the club is more than three times the length

of the basal part of the antenna, and this is so also in one of my Mexican specimens. In

the other examples the antenne are unfortunately defective.

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, May 1886. 2Y

346 SUPPLEMENT.

CHARIESSA (p. 187).

Chariessa vestita (p. 187).

To the localities given, add :—Panama, Tolé (Champion).

2. Chariessa elegans. (Tab. XII. fig. 23.)

Chariessa elegans, Horn, Trans. Amer. Ent. Soc. i. p. 87°.

Hab. Nortu America, San Joaquin in California!, Texas (Belfrage).—Mzxico,

Northern Sonora (Morrison).

Collected by the late Mr. Morrison in the border country, but not ascertained for

certain whether in Sonora or within the United States side of the boundary.

PELONIUM (p. 187).

1 (a). Pelonium luridum. (Tab. XII. fig. 20.)

Sordide testaceum ; antennis tarsisque fuscis, prothorace maculis duabus; elytris plagis indeterminatis satura-

tioribus ; antennis 11-articulatis, clava articulis reliquis subsequali. Long. 10-14 millim.

Hab. Panama, Bugaba, San Lorenzo, Tolé (Champion).

Head rather sparingly punctured ; eyes large, nearly approximate ; epistoma widely

cut out; mandibles pitchy black; antennee fuscous, the basal joint yellowish outside,

the club covered with soft down, the two first joints with their apices produced and

overlapping ; tips of the palpi fuscous. Thorax at the base and on the middle

distinctly, rather closely, in front closely, granulosely punctured ; side tubercles not

large. Elytra thickly covered in the basal half with irregular punctures, obsoletely

and very finely towards the apex; widened a little behind; very closely and finely |

pubescent, with longer hairs at the sides and apex. Legs hairy; the front and middle

knees faintly infuscate; the tarsi fuscous, except the lamelle of the basal joints

beneath.

Five specimens of this fine and apparently rare Peloniuwm were obtained by beating

withered leaves of fallen forest trees. Myr. Champion observed that it was much paler

when alive, and mimicked some species of Lampyride. It is no doubt allied to

P. lampyroides, Spin.

A specimen from Tolé is figured.

Pelonium amenum (p. 188).

To the Panama locality given, add :—Tolé (Champion).

Two specimens.

MALACODERMATA. 347

NIPTUS (p. 196).

Niptus ventriculus? (p. 196).

To the Mexican locality given, add :—Guanajuato (Sal/é).

TRIGONOGENIUS (p. 196).

2. Trigonogenius arcuatus. (Tab. XIII. fig. 20.)

Fusco-brunneus, pilosus, squamis albis adspersus; antennis pedibusque brunneis; prothoracis disco linea

mediana, margine basali, elytrorum fascia basali valde arcuata, scutello maculisque duabus, albo-squamosis ;

elytris punctato-striatis. Long. 14 millim.

Hab. Panama, Taboga Island (Champion).

- The antenne in this species are longer and thinner than in 7. niveus, and with the

joints nearly twice as long as broad, and somewhat serrate; the white markings are not

so compact, the scales composing them being more scattered; the elytra are more

globular, and the basal fascia of scales forms an irregular semicircle surrounding the

shoulder; the body beneath and the legs (especially the tibie) are densely clothed

with white scales; and it is smaller in size. ‘Two specimens.

LASIODERMA (p. 198).

Lasioderma serricorne (p. 199).

To the Mexican locality given, add :—Presidio (Forrer), Jalapa (Hoge).

ANOBIUM (p. 201).

Anobium sericatum (p. 201). (Tab. XIII. fig. 17.)

We now give a figure of the specimen presumed to belong to this species. It is

apparently congeneric with the species here referred to Mtrosternus.

LIOOLIUS (p. 203).

1 (a). Lioolius exiguus.

Oblongo-ovatus, subparallelus, piceus, nitidus, parcius punctatus ; capite fere levi. Long. 23 millim.

Hab. Honpvuras (Sal/é).

Rather more parallel.than L. punctatus, piceous without any blue tinge; the thorax

and elytra more distinctly punctured than in any of the other species. Elytra very

smooth and shining; a few very obsolete strie are just visible under a strong lens

in their middle, neither reaching the base nor the apex. The thorax and the breast

are a little more darkly pitchy than the elytra.

Two specimens.

2Y 2

348 SUPPLEMENT.

THAPTOR (p. 205).

1 (a). Thaptor sharpi.

Plumbeo-niger, oblongo-ovatus, pube brevissima sericante vestitus ; stria submarginali dimidio apicali distincta,

antice abbreviata. Long. 5 millim.

Hab. Mexico, Jalapa (Hoge).

Broader than 7. pupatus, and more convex, especially when viewed sideways. From

above, or “on plan,” the outline is very evenly oval, the thorax being rather more

pointed than the apex of the elytra. The head (when set out) is of course in addition

to the oval outline of the thorax and elytra, but is perfectly retracted in repose. The

antennee are brown, and similar to those of 7. pupatus. There are no strie or punctures

visible; the surface above appears dull, with an exceedingly fine and close pubescence,

which is greyer than that of 7. pupatus.

A single specimen is all I have yet seen; it was detected by Dr. Sharp among the

specimens of Cathorama palmarum collected at Jalapa by Herr Hoge, which, when

unset, it almost exactly resembles. te

Thaptor oblongus (p. 206).

To the Mexican localities, add :—Jalapa (Hége).

Several specimens, varying a good deal in size.

CATHORAMA (p. 207).

Cathorama palmarum (p. 207).

To the Mexican localities given, add :—Jalapa (Hége).

1 (a). Cathorama puncticeps.

Summa affinitate Cathorame palmarum, breviter oblonga, convexa, fusca, subnitida; antennis ferrugineis ;

capite prope oculos distincte crebre punctato ; prothorace valde convexo, transverso, haud plus quam duplo

latiore quam longus. Long. 53 millim.

Hab. Mexico, Jalapa (Hoge); Guatemaa, San Gerénimo (Champion).

Extremely close to the species I have identified with some doubt as C. palmarum,

and only to be separated by its slightly bulkier and broader build, by the thorax

not being so short, more produced over the head, and more convex, and by the

rather strongly punctured space on each side at the base of the head, and behind and

inside the eyes. Both this species and C. palmarum? have the sculpture of the whole

upper surface exceedingly fine, so that (with the exception mentioned in this species)

neither punctures nor striz are visible; even the submarginal strise, usually present, are

here scarcely to be seen; they are only faintly represented by obsolete, shallow

impressions. Two specimens.

MALACODERMATA. 349

Cathorama seminulum (p. 207).

To the localities given, add:—Panama, Pefia Blanca 3000 to 4000 feet (Champion).

Found on flowers on open savannas, commonly.

MIROSTERNUS (to follow the genus Cathorama, p. 208).

Mirosternus, Sharp, Trans. Ent. Soc. Lond. 1881, p. 526.

A genus founded by Dr. Sharp for several species of “ Dorcatomini” inhabiting the

Hawaiian Islands. The species he describes being only represented by single, or at

the most two or three specimens each, I have not been able to examine a dissection,

and the two insects now referred to the genus being similarly represented, their location

here must be considered problematical, yet externally there does not seem to be any-

thing to separate them. The antenne are eleven-jointed, the eyes not cut out, the

mesosternum depressed, and the prosternum without processes.

1. Mirosternus brunneivillis. (Tab. XIII. fig. 18.)

Oblongus, niger; elytris prothoracisque disco minus dense, lateribus densius, brunneo-pubescentibus ; antennis

pedibusque rufo-fuscis, his clava rufula. Long. 3 millim.

Hab. Panama, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Brownish black, a little shining, clothed with a brownish close pubescence, which is

disposed rather in lines on the elytra, and becomes denser on the sides of the thorax,

especially on the inflexed portion. The thorax narrows considerably in front, its length

is rather less than its width at the base. Punctuation is not visible. The antenne

have the three last joints elongate, not angular, but evenly rounded on their inner edge,

and nearly equal in length and breadth to each other.

This insect may perhaps be regarded as forming a link between the genus Thaptor

and the typical “Dorcatomini.” There is, however, no room for doubt that large

numbers of species exist, and it would be foolish to attempt to systematize or generalize

upon the modifications at present known to us. Thus I do not feel sure yet that the

mesosternal cavity is always used for the reception of the antennz; those species I

have examined have the antenne folded under the head, and lying in front of the

prosternum.

2. Mirosternus substriatus.

Oblongus, latior, nigro-piceus ; elytris subplumbeis, striis duabus submarginalibus fortiter impressis, tertia

(interiore) obsoleta pone medium desinente, disco levi, seriebus punctorum circa septem, perobsoletis egre

distinctis. Long. 4 millim.

Hab. Panama, Boquete 2500 feet (Champion).

350 SUPPLEMENT.

This is a difficult species to deal with, its general appearance being that of a Catho-

rama; it is, however, not admissible into that genus, on account of the antenne being

distinctly eleven-jointed. From other species of Mirosternus it differs in its more

robust build. The whole upper surface is clothed with the same extremely short, fine

bloom or pubescence which we observe in some species of Cathorama, and in Thaptor.

The head is wide, rufo-piceous above, rufous beneath ; the antenne are rufous, with

the basal and apical joints darker, the club formed much as in Cathorama, the inter-

mediate joints very short and transverse, and rather acuminate internally. Two

specimens.

PRIOTOMA.

Dorcatoma, ante, p. 208 (pars).

Corpus breve, fere semiglobosum. Caput inflexum, in prothorace modice receptum. Oculi interne leviter

excisi. Antenne decem-articulate. Prosternum antice in medio angulariter productum, postice late

arcuatim emarginatum, dente medio antico setosello. Mesosternum depressum, medio excavatum.

Abdominis segmenta utrinque sinuata. Metasternum intra coxas intermedias rotundato-truncatum et

marginatum.

Typus Dorcatoma quadrimaculata (ante, p. 209).

This insect was described from a unique example, and of the other species referred in

the first part of this volume to Dorcatoma so few specimens were in my hands at first,

that I was then unwilling to dissect them. A few more having now been found, |

have carefully examined by dissection both P. guadrimaculata and P. contracta, and by

inspection without detaching the head or prothorax, P. brevis and P. tenuistriata, now

added. None of these can be properly included in Dorcatoma as now restricted by

European writers, as they do not possess the remarkable double fork-like process to

the prosternum ; neither can they be referred to Cenocara, which the two latter species

especially seem to come nearer, for the eye is not nearly so deeply excised. With

Anitys (although P. contracta, P. brevis, and P. tenuistriata appear to have the

antenne eight-jointed) they have even less affinity. The genus Dorcatoma will in

consequence only be retained here for the single remaining species, D. tomentosa,

which will without doubt be ultimately withdrawn also. :

In P. contracta the front ridge of the prosternum is nearly straight, without any

point or tuft of hairs; and the hinder ridge, if emarginate, is very broadly so, but the

structure is practically the same, the anterior legs being rather widely separated; the

object of the arrangement being apparently to permit the antenne in repose to be

pushed over the edge of the prosternum into the cavity produced by the depression

and hollowing out of the mesosternum. In P. guadrimaculata the pubescence is close

and fine, in the other small round species mentioned here it is sparse and setose; it is

probable that ultimately these as well as the species with eleven-jointed antenne will

be generically separated, but it would be premature to do so at present.

MALACODERMATA. _ | 351

1. Priotoma quadrimaculata.

Dorcatoma quadrimaculata, ante, p. 209.

To the localities given, add:—Mexico, Jalapa (Hoge); Guatemala, San Geronimo

(Champion); Panama, Bugaba (Champion).

2. Priotoma contracta.

Dorcatoma contracta, ante, p. 209.

To the localities given, add:—GuatTeMaLA, Cahabon (Champion); Panama, Pena

Blanca (Champion).

3. Priotoma brevis.

Breviter orbicularis, subglobosa, nigra, nitidula, parce brevissime pilosa ; elytris creberrime confertim punctato-

striatis, striis duabus submarginalibus subintegris, tertia antice abbreviata; antennis pedibusque fuscis.

Long. 14 millim.

Hab. Panama, Bugaba, David (Champion).

About as large as P. contracta, and equal to the specimens of middle size of that

species, but more convex, and at once to be distinguished by the punctuation of the

elytra, which in this species is composed of series of large distinct points with fine striz

between about every third row of punctures; the points, though very thickly distri-

buted, are not confluent, and there is generally room for other punctures of the same

size between each ; the interstices are smooth, and smaller points are here and there

interspersed. The head and thorax are also thickly punctured. The antenne are

apparently eight-jointed; the funiculus is very short, and may perhaps be composed

really of four joints, it being to me uncertain whether what appears to be a very short

joint immediately before the first club-joint does not in fact form its base or stalk;

the club is well developed ; the first joint is triangular, almost equilaterally, but its

_ inner angle is rounded off, the second triangular, but not so wide, the last oblong and

rather narrow. ‘The antenne and legs are dark fuscous-red. The whole body is black,

but with a very faintly bluish tinge.

Two specimens are all I can assign to this species.

4. Priotoma tenuistriata.

Breviter oblonga, valde convexa, nigra, subtus rufa, nitidula, densius setosa; capite et prothorace subtomentosis ;

elytris striis tenuibus striatis, creberrime confertim punctatis, striis duabus submarginalibus subintegris

valde impressis ; antennis, pedibus corporeque infra rufis. Long. 2 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui 4000 to 6000 feet (Champion).

Very distinct from either of the species yet described. The body, though strongly

convex, is more oblong; the punctuation is so fine and dense as not to be resolved

except under the microscope, the strize are, however, distinct enough, although fine ;

the setose pubescence is denser than in the two preceding species. The antenne are

352 : SUPPLEMENT.

less developed (possibly the specimens are females); their first club-joint is triangular,

the inner angle acute, the second club-joint is nearly of the same form, the third or

terminal joint is oval, shorter than in P. brevis, and the appendages are red. Two

specimens.

LYCTUS (p. 211).

By an oversight the Subfam. “ Lyctini” (including two species of Lyctus) has been

placed after Polycaon plicatus on p. 211; it should precede the Subfam. “ Bostrychini”

on p. 210.

Lyctus prostomoides (p. 212).

To the localities given, add :—Murxico, Guanajuato (Sallé); ?Nicaracua, Chontales

(Janson).

One specimen from San Lorenzo in the State of Panama has the head and thorax

covered with thick brownish-grey pubescence, and the elytra evenly pubescent.

A single example, in very bad condition, from Chontales is perhaps referable to this

species.

APATE (p. 212).

Apate punctipennis (p. 213).

Bostrichus migrator, Sharp, Scient. Trans. Royal Dublin Soc. iil. series 2, p. 160°.

To the localities given, add:—Mexico, Northern Sonora (Morrison), Tres Marias

Islands (Forrer), Esperanza, Jalapa, Almolonga (MHége); Nicaragua, Chontales (Belt,

im coll. Sharp); Panama, 'Taboga Island (Champion).

By the kind permission of Dr. Sharp I have examined specimens of the species from

Honolulu’, described by him under the name of Sostrichus migrator, and I agree

with him that no difference exists between them and a specimen in his collection

from Nicaragua; it appears certain to me also that it is identical with the present

species. I have also through Dr. Sharp’s kindness examined an authentic specimen

of Amphicerus fortis from Arizona; this latter, though very closely allied, differs (as

I had gathered from the description) from both this, which I still regard as A. puncti-

pennis, Lec., and from another species in my own collection, notably by the shorter

thorax having the hind angles produced into a sort of tubercle.

Whether Bostrichus bicornutus, Latr., is the same species, I have no evidence for

determining, the synonymy in the Munich Catalogue only referring to catalogue names

with no kind of authenticity or value.

MALACODERMATA. 353

BOSTRYCHUS (p. 213).

Bostrychus verrucosus (p. 214).

To the localities given, add:—Muexico, Almolonga (ége).

One specimen, apparently identical with this species, but densely clothed with rough

hair, in tufts and matted masses, which probably is deciduous in specimens that have

been at large for some time.

XYLOPERTHA (p. 215).

Xylopertha sericans (p. 215).

To the Mexican localities given, add :—Northern Sonora (Morrison), Pinos Altos in

Chihuahua (Buchan-Hepburn, ¢ ), Ventanas 2000 feet (Forrer), Almolonga (Hége).

Xylopertha scapularis (p. 216).

To the localities given, add:—GuateMaLa, Yzabal; Panama, Bugaba, Tolé, Pefia

Blanca (Champion).

Xylopertha sextuberculatum (p. 216).

To the Mexican localities given, add :—Almolonga, Esperanza, Oaxaca (Hége).

The specimens referred to this species present a good deal of variation both in colour

and in the length of the teeth at the declivity of the elytra; one from Almolonga is

black, excepting the callus, which is red; another from the same place is more shining,

with finer punctuation, feebly developed teeth, and the apical declivity strongly

punctured ; while the one from Oaxaca has the teeth commencing as parallel ridges.

DINODERUS (p. 217).

Dinoderus punctatus (p. 217).

To the Mexican locality given, add :—Almolonga (Hége), Ventanas 2000 feet (Forrer).

Dinoderus substriatus (p. 218).

To the localities given, add :—GuatEma.a, Cerro Zunil (Champion). Four specimens.

4. Dinoderus perfoliatus. (Tab. XIII. fig. 25.)

Niger; elytris piceis, distincte punctato-striatis; antennis fusco-rufis, clava nigra, articulis octavo et nono

intus longe productis. Long. 23 millim.

Hab. Panama, Bugaba (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, May 1886. 27,

354 SUPPLEMENT.

Allied to D. substriatus, but smaller, and proportionally narrower ; and to be separated

from that species by several important characters: the thorax has not the double

oblique fossa at the base; the elytra are quite distinctly punctate in series of which six

can be counted on each elytron, but the punctures become confused near the scutellum

and at the sides, and there is an obsolete row near the suture in addition. The whole

insect is more shining than D. swbstriatus; the thorax has the same concentric rows of

muricate tubercles (three or four of these can be counted, behind which the rough

points become small and confused) as other species of this genus, and the base is

simply punctate with granular interstices. The antenne differ very strikingly from

those of D. substriatus, in which they are rufous, and with the two first joints only of

the club angularly widened internally till they are a little wider than long; in D. per-

foliatus these joints are so sharply produced as to be more than twice as wide as long,

and the three last joints are black or nearly so.

XYLOGRAPHUS (to precede the genus Macrocis, p. 219).

Xylographus, Mellié, Rev. Zool. 1847, p. 109; Mon. 1848, p. 218; Lacord. Gen. Col. iv. p. 549;

Jacq. Duval, Gen. Col. Eur. iii. p. 237; Abeille de Perrin, Essai Monographique Cisides Europ.

et Circamediterran. p. 17 (1874).

Mellié, adopting a name in Dejean’s ‘Catalogue’ for a Madagascar species, viz.

Aylographus hypocrita, has placed nine species in this genus, three from Madagascar,

one from Europe and Algeria, and five from Peru and Colombia. It differs from Cvs in

its general shape, which is more that of Tomicus, also by the extraordinary form of

its legs, which have the tibie widely lamelliform with denticules on the outer edge.

In the two species which are here assigned to the genus, the legs agree in these

particulars, and in addition the femora are wide and compressed, the coxe are elongate,

cylindrical, and widened at their femoral ends. The prothorax is massive, and projects

in a singular way over the head. The punctuation of the elytra is coarse and deep and

rather sparse.

It is probable that the species now described will, with others from South America,

ultimately be separated from those from Madagascar, but as I have not dissected

the European one, which is rare in collections, and of which I have only seen two

specimens sent me by Herr Reitter, I am not able to point out good characters by

which they may be separated. In their general peculiarities these species. present

remarkable affinities with X. bostrichoides, and this is more especially true of X. suillus,

while X. porcus has superficially a stronger resemblance to a Tomicus, and is evidently

a near ally of the Colombian X. gibdus.

MALACODERMATA. 350

‘1. Xylographus suillus. (Tab. XIII. figg. 21, 21a.)

Breviter oblongus, crassus ; prothorace antice angustato, caput sicut cucullo tegente ; nigro-piceus, nitidus, sat

fortiter crebre punctatus; antennis (clava excepta) testaceis. Long. 2 millim.

Hab. Guatemata, Teleman (Champion).

This species and X. porcus are distinguished from any of the Cioide known to me

by the form of the thorax, which is produced over the head in a hood-like manner, the

head being comparatively small; when viewed sideways the front of the thorax leaves

an open space betwixt itself and the head. No horns or tubercles are present, and I

do not distinguish the sexes. The antenne are ten-jointed; the funicular joints are

very small and short, the three club-joints transverse and blackish. The punctuation of

the thorax is fine and close, that of the elytra sparser and stronger. The thorax is

much deflexed at the sides, and it is entirely margined with a fine raised line. The legs

are pitchy, a little lighter than the body. Many specimens were obtained in hard

boleti growths on the trunks of the “ Manaca” palm (Adtalea cohune), in the hottest

parts of the Polochic valley.

2. Xylographus porcus.

Breviter oblongus, crassus; prothorace antice modice angustato, nigro-piceus vel piceus, elytris brunneis, pilo

tenui parcius vestitus; prothorace crebre, elytris parcius fortiter, punctatis, his ad apicem retusis.

Long. 1-14 millim.

Hab. Guatemata, Teleman, Zapote, Pantaleon (Champion).

A smaller species, and much more coarsely and sparingly punctured than X. suillus ;

the thorax is similarly formed, projecting very much over the head, the margin is

entirely bordered by a fine line, except in the immediate front, where it is faintly

emarginate, and this part is usually reddish. The elytra are not longer than the

thorax, being scarcely longer than wide, and they are almost setose, the pile being very

short and stiff. The antenne are proportioned as in X. swillus, and are similarly

coloured. The smaller specimens are those from Pantaleon.

Many examples. This species very much resembles a Tomicus, owing to the short

retuse body and upright hairs.

3. Xylographus latirostris. (Tab. XIII. figg. 23, 234, 6; 24, 24a, 2.)

Oblongus, robustus, niger, nitidus; prothorace minute, distincte, elytris minus distincte, subtilissime punctatis ;

pedibus rufis. Long. 2-2; millim. ¢ Q.

Mas. Capite antice laminato-elevato, utrinque ante oculos elevatiore ; prothoracis margine antico in laminam

bene distinctam, recurvatam, margine summo emarginato, elevato.

Femina. Capite antice laminato-elevato, prothorace mutico.

Hab. Guatemata, Zapote (Champion).

| 2Z 2

356 SUPPLEMENT.

This is a species resembling X. bostrichoides, but remarkable for the armature of the

head and thorax, the front margins of which in the male are each elevated into a recurved

and concave lamina. The antenne are distinctly ten-jointed, the third joint elongate, |

the intermediate joints short; the base yellow, the club black. The punctuation of

the thorax is so fine that under a “ Coddington” it is only just visible, but under the

microscope it breaks up into distinct scattered points, between each of which there is

room for several others of the same size; that of the elytra is thicker and more

irregular, there being larger and smaller points interspersed. The elytra are only a

little longer than the thorax, and are very retuse at their apex.

It is, as usual in this family, the sexual characters, and especially those of the male,

that afford the best specific diagnostics. In the male the thorax is suddenly depressed

in front, and then the margin rises as a broad recurved plate, of which the top is

truncate, with its corners produced a little: it thus forms a sort of cup. The head has

its front elevated, especially on each side, the “cup” so formed is very shining inside,

and seems to have a small tubercle in the middle; but there being only one male

specimen, I cannot examine the head sufficiently to see the whole of the structure.

MALACOCIS (to follow the genus Xylographus).

Corpus breve oblongo-subquadratum, dense pubescens. Caput parvum, antenne novem-articulate. Prothorax

corporis latitudine, convexus, haud cucullatus; prosternum breve, coxas anticas haud superans.

1. Malacocis championi.

Brevis, nigro-brunneus, rufo-villosus, breviter pilosus; antennis pedibusque fuscis, illis basi testaceis.

Long. 17 millim.

Hab. GUATEMALA, near the city (Champion).

A little, broad, convex species, densely clothed with coppery-red upright velvety pile.

The punctuation of the elytra appears very close and subrugose, not in series, nor is

there any appearance of strie; the underside is of the same fusco-piceous colour as the

rest of the body, but the mentum is yellow, and the legs are lighter in colour than the

body; the thighs are moderately compressed, not much widened; the tibize simple, not

denticulate externally, but not well observed in the specimens before me; the tarsi

short. ‘The antenne are nine-jointed; the third joint is long and equal in length to

the three following ones, which compose the funiculus ; the three club-joints short and

laxly articulated. The head is small, rufous above; the eyes small and not very

prominent.

Two specimens of this curious little species are all Mr. Champion appears to have

obtained.

MALACODERMATA., 357

CIS (p. 220).

4 (a). Cis tetracentrum. (Tab. XIII. figg. 22, 22a, 3.)

Oblongus, fuscus, dense sed breviter pubescens, confertim punctatus, parum nitidus; antennis testaceis, clava

saturatiore; pedibus rufis. Long. 3-3} millim. ¢ 9.

Mas. Capite, clypeo angulariter bituberculato, elevato; prothorace antice bidentato.

Hab. Nortn America, Arizona (Morrison).—Mexico, Northern Sonora (Morrison).

Rather larger and longer than C. bisbidens, to which it is rather closely allied. The

two angular projections of the clypeus are further apart than in that species; they are

formed from a ridge which takes its origin in the upper part of the canthus of the eye. .

The front edge of the thorax in the male is produced into two prominent and sharp

points, but these are not nearly so long as in C. disbidens, and whereas in that species

they point slightly downwards over the head, in this species they curve a little upwards,

though in both they are nearly straight. .

The punctuation is very fine and close, and hidden by the short golden-brown and

somewhat pruinose pubescence. Several specimens of this insect were collected by

Morrison, and distributed indifferently as from “ Northern Sonora,” ‘‘ California,” &c.,

but the precise locality of their origin is uncertain.

10. Cis bituberculatus.

Oblongus, brunneus vel rufo-brunneus, vix punctatus, parum nitidus, brevissime setulosus ; antennis testaceis,

clava fusca. Long. 24 millim. ¢ 9.

Mas. Clypeo bidentato elevatulo, prothorace antice bidentato.

Hab. Mexico, Oaxaca (Sallé).

Brownish fuscous, the head beneath, and sometimes the front of the thorax, rufo-

testaceous. Very finely, almost invisibly, punctured ; and only clothed with the finest

and shortest pubescence, which under the microscope appears setulose, or upright and

shining, but not hoary. The thorax in the male is quadrate, prominent, and elevated

in front, the middle of the front margin being produced into two denticulations, which

are close together, and not acute; in the female the thorax narrows a little in front.

The head is small, the clypeus with two elevated but very small denticules.

This species reminds one of the European C. bidentatus, but it is but half the size,

whilst the punctuation is not distinct as in that species, and there is no depression

between the thoracic protuberances.

In one specimen these thoracic projections scarcely amount to more than a small

notch in the front margin. About six examples from Sallé’s collection.

11. Cis subfuscus.

Brunneus vel fuscus, antennis pedibusque testaceis, his clava pilosella fusca ; elytris densius brevissime pube

erecta vestitis, sat fortiter punctatus, nitidus; prothoracis lateribus distincte marginatis, minute crenulatis.

Long. 12 millim.

Hab. Mexico, Cordova, Vera Cruz (Sal/é).

858 SUPPLEMENT.

A small species without at first sight any special character to distinguish it, and of

which at present among the few examples we possess I have not been able to

distinguish sexes.

It may be compared to the European C. vestitus and C. oblongus, with which, as to

size and vestiture, it agrees fairly well, but the thorax is broader and does not narrow

in front ; the punctuation is more confused ; the club of the antenne is laxer, and hairy,

its two first joints are not transverse, and its apical joint is acuminate. The pubes-

cence is serial. In the less mature examples the elytra have a slight olivaceous tinge.

12. Cis cylindrus. |

Elongatus, cylindricus, nigro-piceus; elytris piceis, dense subtiliter, prothorace minus crebre, punctatis ;

pedibus rufis ; antennis testaceis, clava fusca. Long. 27 millim.

Hab. Panama, Caldera in Chiriqui (Champion).

A species of Cis resembling the European C. alni in size. Its head is as wide as the

thorax in front, densely and finely punctate. The thorax is longer than wide, thickly but

distinctly, and rather sparsely, punctured near the base; the disc has a constricted

transverse impression ; the sides are much deflexed, and with the base are margined by

a fine line. The elytra are densely punctulate, not deeply nor at all in series; the

suture is even, without any distinct stria, and no pubescence or sete are visible. There

is but one specimen which I can assign to this species, and the description is therefore

provisional and defective. A single specimen of a Cis from Tolé, and one from Mexico,

come very near to it, but it would be rash to assume they were conspecific.

13. Cis ——?

Hab. Mexico, Oaxaca (Sallé).

Several specimens of a minute species, about one millimetre in length and with

pruinose pubescence; apparently all are females, and I do not consider there is sufficient

material for its description.

14. Cis ——?

Hab. GuatEMALA, Zapote (Champion).

Another minute species. Two specimens.

15. Cis ——?

Hab. Guatrmaa, Zapote (Champion).

The antenne in this minute species appear to be nine-jointed, but there being

only two specimens, the material is not sufficient to yield the necessary examination

by dissection.

MALACODERMATA. 359

CERACIS (p. 223).

Ceracis militaris (p. 223).

Hab. Mexico, Vera Cruz (Sallé).

It is in error that C. furcifer is given as a synonym of this species. I was in fact

led into the mistake by specimens of C. furcifer being labelled C. militaris in Sallé’s

collection ; these are those from Tuxtla. The specimens from San Juan in Vera Paz

also belong to C. furcifer, one of which is figured on Tab. X. fig. 26. I had not at the

time the opportunity of verifying these species with M. Mellié’s descriptions and figures,

which I have now done. The localities given under C. militaris on p. 223 all therefore

refer to C. furcifer, which should follow the present species.

There are, however, eight specimens from Vera Cruz in Sallé’s collection which I

refer to C. militaris, with perhaps a very little uncertainty, the thoracic prominences

in the male being a little less pronounced, and the whole insect more cylindrical than

Mellié’s figure would appear to represent. It is also to be regretted that Mellié was

not informed of, or did not give, the precise locality in Mexico from whence his species

came. Our species is the smallest I have yet seen of this group; from C. furcifer it

differs entirely by the two small reflexed projections on the front of the thorax in the

male, in which sex the clypeus bears a reflexed ridge in front, which appears to be

bidenticulate. The females are of course very difficult to separate, but it is probable

that the nearly allied species will not generally occur together ; in this species the very

small size and cylindrical form will serve for a distinction.

1 (a). Ceracis furcifer.

Ceracis militaris, Mellié, Ann. Soc. Ent. Fr. 1848, p. 379; ante, p. 223 (partim).

To the Guatemala locality given, add :—Yzabal (Sal/é).

Mellié informs us that he had seen many examples of this species in Melly’s collection,

from Cayenne and Peru, and in Chevrolat’s and Reiche’s collection, from Surinam.

It appears to me highly improbable that all these really pertained to C. furcifer.

Sallé’s specimens from Guatemala, he says, were taken at Yzabal in a species of

Polyporus. I apprehend there are many closely allied species *.

8. Ceracis quadricornis.

Oblongus, cylindricus, nigro-piceus, nitidulus, creberrime vix visibiliter punctatus. Long. 1 millim. ¢.

Mas. Prothoracis margine antico bi-denticulato, clypeo in medio bi-elevato.

Hab. Mexico, Tuxtla (Sallé).

* T possess two specimens of a Cis from Mexico labelled respectively Ceracis variabilis and Ceracis mutabilis,

Chevrolat. It is in the highest degree improbable that these specimens are correctly named, as both are

females; or that a species from Cuba should also occur in the interior of Mexico.

360 SUPPLEMENT.

Although there is but a single male specimen of this insect it is clearly distinct

from C. militaris, being considerably larger, with the front thoracic denticles not so

much produced into a lamina. It would seem to be very near C. salle, but I decline

to think it likely to be identical with a species from New Orleans. Another example

from Mexico in the Sallé collection may possibly be the female ; in this the thorax is

unarmed, but the head has a distinct elevated lamina deeply emarginate. There is,

however, no evidence to show that these two insects are in any way connected. They

are both labelled “ Cis militaris” in Sallé’s collection.

INDEX.

[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

AMA cic cccnvccncenvnnncnes 272

LETHRA voce e eee eee eee 32, 251

Fk: 33

brunnipennis .......... 251

—— concolor ............ es 32

despecta ............ 32, 251

Alecton viivvscsccccccsvees .» 257

Alychnus xanthorrhaphus...... - 38

Amphicerus fortis ...seseeeees 352

PUNCH PENNIS . 6. ee eevenee 213

Amydetes wicccrccevecesvees 62

—— plumicornts .........00e 62

AMYTHETES ...........5.... 62

Amythetes oo. .cceccccccreees 63

plumicornis ............ 62

ANUYS. ice cceccreccces 208, 850

ANOBIIDES ..........eee0ee 198

~ANOBIUM ........005 .. 201, 347

ANODIUM Liciccccccecccenes 206

ODESUIN Le cececcececeees 202

—— paniceum .............. 202

sericatum .......... 201, 347

SETUALWM vice eee eeeee 202 |.

tenuistriatum .......44. 202

ANTHOCOMUS .......... 114, 317

Anthocomus. . 118, 120, 122, 307, 318

—— eneo-picipennis ........ 117

basalis ............000. 116

—— byssinus .............. 115

—— CUNCLUS vee ce cacevenee 818

—— discimacula ............ 116

disciemacula ...eececeees 317

—— EFUCHSONE eee eee vevenes 317.

Slavitlabris .. ese veveaes 320

—— hepburnius ........ oe. 317

—laticollis .............. 117

— maculosus.............. 115

MACULOSUS .. ces eceeeees 116

—— MINIMUS de ee eeeees ve. 121

—— nigro-eneus..........+. 117

—— opalinus ,..... cee eeee 317

—— plagiatus .......... ee. 115

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, May 1886.

Page

Anthocomus plagiatus ........ 122

pusillus.............00. 116

—— PUfIPENNIS 6 oe ececeaes 116

sapphirinus ............ 117

SCPPRAYINUS voesecceeees 318

SEMINUUM Le vceserenee 121

VATUANS viv escevcceveens 116

—— ventralis wi. ceceeeeeeee 317

ANTIXOON. .. ccc eee e cece eee 332

cribripenne ............ 332

APATE voc secee cece eaee 212, 352

ApUate coe ececccccecnees 210, 2138

AGSCLA vec rece ccsreeeee 2138

— femoralis ....... 0.0. eee 211

fOrtts cece cece ceveeeees 213

——— JONAGTA vi vvvccvvvunces 211

lonGicornts. .. 6. cece eens 218

———— MUT ICAL eee cvccneenes 212

PUNCLALUS wiveveeecseees 217

—— punctipennis........ 218, 352

terebrans ...sseeeeeeeee 212

UFUSCIS. cece ee cen een ecues 2138

APOLOPHA..... seen eee 181, 345

Apolopha vicscrecvcvecccces 183

chiriquiana ........ 182, 345

linearis ...... see eee eee 182

trilineata ...........065 182

Arthrobrachys .......60 128, 325

Aspidomorpha vivscreccseces 53

ASPIDOSOMA ....¢.-.3... 58,271

ASpid0sOMG ......cseeeeee 54, 273

eegrotum.........6.. 54, 272

——elianum .............. 272

—— )ilineatum ,......... ‘55, 272

—— cassideum.............. 271

— costatum............ 55, 272

—— depictum .............. 54

Miaphand wsssevssereee, 54

——diaphanum ............ 54

——ignitum ........ wae. 55, 272

—laterale ............ 53, 271

— lepida. ... ec ccesecees .. 54

Page

Aspidosoma lepidum ........ 54

physonotum ............ 272

—— pulchellum ............ 54

—— pulchellum..... beneeees . 46

UUUMS ieee cee nee 273

ASPtSOMA Lecce ceccececeues 53

POYZONA wivecceseeeees 55

ASTYLUS vo. cece cece ee 127, 330

AstylUs voc eercvecenes ‘eetees 123

CO a 331

—— octopustulatus .......... 330

octopustulatus .......44. 331

vittatus .........00, 127, 330

AbeliUs vi cecsecccccecccees . 248

ATRACTOCERUS ........ 111, 313

AlraCbOCerUS...eeereceees 63, 277

UfTUCANUS oo. e ee cee eens 112

brasiliensis ........ 112, 313

—— dipterorum .......040. . 112

Mipterum ..ccccccvvcees 112

ATTALUS ....ec.. eee eee 118, 318

Atialus.... 114, 119, 120, 307, 319,

320, 324

AMACCUS oo ee ccc cece nnees 119

—— anthobioides............ 119

anthobioides ........04. . 121

— (?) calcaratus .......... 319

CANCAV AUS Lee eee eee 324

caraboides............4. 120

caraboides ...... 319, 320, 324

carinatus ...........00, 320

CinctuS ...........000. . 318

—— ceelestinus............ .. 320

—— adiffictlts oo... ee ee eee 318

fuscesceMS ..........00. , dlg

limbatus ..........00.. 119

limbatus ......... . 318, 319

nigritulus ............0, 120

NUGVORNCUS oe. eeeeees . 319

—— scutellaris...... Seeeeeee LID

sericans...... seeeeeeees 118

— subfasciatus ...... crevee 320

362

Page

Attalus tabogensis .......... 319

—— verberatus.......eeee eee 318

AULICUS.. 0... cece eee eens 146

—— coffini .......... eee eee 146

—— monticola .......seeeeee 146

NETO .eccsccevcsveeeees 146

Ba@oscelis ...ccsevvees seeeee 108

BELOTUS ... ee cece see 99, 808

nd a 309

abdominalis ........ 99, 308

abdominalis ...cgevscues 100

fUSCUS 1... eeeeee seeee 99

maculatus ........-. 99, 309

BLAXIMA 2... eee cece eee eee 165

rubripennis ............ 165

Bostrichus ....... 005 deena 213

Bicornutus ....eeeeceeees B02

Dispinosus ..... ce eee eeee 214

CUPUCINUS ... cee eeeeee 213

—— Migrator oo. .eveceeeees 352

BosTRYCHIDH ....... cece eee 210

BOSTRYCHINI ...-seeveeeeee 210

BosTRYCHUS.......-.06. 218, 358

Verrucosus.......... 214, 853

Brachymorphus ..ccevcveecces 187

VESEILUS eccaeccrrcecues 187

Brachynotus ......cccv evens 285

Byturosomus griseus... 1.0000. 828

—— rufipeS cicsvceees cence 328

CANIA weeee cee eee e eee eee 17

CANA. occ cece nee ene 21, 27

cardinalis ...........00. 17

dimidiata wo... cc cece 18

interrupta...........0.. 18

SANGUINUPENNIS . 1.6.00 21

—— scapularis ...........00. 18

— sinuata ......... beeeees 18

CQNOCATA ieee eee e eens 208, 350

CALLEROS oo. cece ee cence 25, 244

aterTiIMUS ......ees eee ee 244.

— filiformis ............. , 244

— wmilitarig ...........4.. 26

—— pumiceus ........seeeee 26

rufobrumneus .......... 26

SNANj® .. 0. eee cece eee 26

SINANJE vo vvcvccvvnveuee 244

Callianthia grandis ......4.45 69

1 . 75

MOTIO. cove vccevcevecees 77

SCAPUTAEA ieee cece eeees 77

“SIGNALED vee eeceeuee wees 72

Calochromus .rccevscceeces oo. 228

re aeteceenes 227

CALOCLADON ...... seven 27,244

INDEX.

Page

Calocladon ......seee 94, 245, 247

chiriquense ........000+ 245

chiriquense ..... wevevee 246

ephippium...........66. 247

fusculum........ wees 29, 245

—— fusculum wicsecccccenes 2438

—— histrionicum............. 245

— oculatum..:......... 28, 246

oculatum .iscseceee 245, 247

pectinicorne ........ 29, 246

—— plumosum...........4. , 246

——rubidum .............. 246

testaceum .......... 28, 244

testaceuM... sees 29, 246, 248

CALOLYOUS ..... cece eee eee 27

calanticatus ..........45 27

CALOPTERON....... 000000: 8, 229

Calopteron.. 1,12, 15, 23, 28, 90, 94,

179, 235, 236, 237, 248 —

affine ........... 06. wees 10

TE | er 9

beltii ..... 6. eee ee ee eee 15

— bifasciatum .......... 8, 229

— bifasciatum .......... 9, 188

—— hifurcatum ............ 232

corrugatuM ........666. 9

—— corrugatum ....... es 8, 229

—— costatulum ............ 230

—(P)debile ...... veeeenes 236

debile ..... cece eee eeee 237

decipiens ............4. 235

AECUpiens oo. ee ceecceaee 234

difficile ............ 16, 234

—— difficile. ...... 6005 17, 235

—— divergens .......... 11, 229

—— duplicatum ............ 10

flavipes .........06. 11, 230

— funestius .............. 231

—— ichnoides............ 15, 234

UChNOUES . 6. cee cece 92,179

imitator......... ee eeeee 236

jimenezi ws... eee ee eee 11

—— juvenile ............ 12, 230

—— AMWM ir ivccccccuvees 28

—— lineare.............. 14, 233

——matutinum ............ 16

MALUINUM oc ceeeees 17, 231

—— melanopterum .......... 10

MELANUTUM ves veccevees 232

—— mimicum............ 15, 284

—— mimicum........ 86, 92, 236,

245, 248

miniatum .......... 16, 234

MUNUTAEUM vo cececcevenes 235

notatulum.........eeee. 235

Page

Calopteron obliquum ........45 179

pallidum .........4.. 9, 229

——palpale ..........., 10, 230

palpale ooccceccccecuees 9

pectinatum .iceececees 29

pennatum..... stb eeetee 13

PENNATUM Vi cvovevcces e. 233

——planulum ............ +» 230

—— plateroides ............ 236

posticum ............4. 12

POStICUM Leer cececceeee 230

reticulatum ............ 10

reticulatum ...... 000. 11, 229

—— rubricolle .............. 234

—— rubrotestaceum ........ 233

—rufulum ...........,. 13, 231

PUPULUM. oe eevee etees 233

—— seapulare .............. 12

SCAPUIATIS eee e scene ». 12

Serratum ....eee eee eee 11

Simulator ...........00, 234

sinuatocolle :........... 231

SOCIUM ... ee eee eee eee 233

SOCIUM ieee cecnccucues 247

— suturale................ 232

CENUE . cece ciecceeucsues 233

terminale .......... 14, 233

tricostatum ............ 17

- tricostatum ... 6.6.00. 16, 235

triste woe... eee eee 18, 231

—— WISI Le ec cc ccc vnces 13

—— BLYPUCUM vv eee eceeenes 10

—— UNICOIOL 6 vec cece ees 230

xanthomelas oo... ee cee 17

Cantharis oo. ee cece ccccens 88

albolaterts ..........005, 285

Carphurus vc... cece 121, 323

OES [ 278

CATHORAMA ............ 207, 348

Cathorama.......... 204,.349, 350

herbarium.............. 207

herbartum vevecccccccces 208

—— palmarum........ .. 207, 348

—— puncticeps...........0.. 348

seminulum ........ 207, 349

SCMINUUWM oo ec ecececs 204

Catorama veveccccccececcecs 207

herbarwum oo... cccceeee 207

palmarum wo... cece eee. 207

Cenophengus ..... 0... cc cee 106

CERACIS....... ve eeeeees 223, 359

—— furcifer ...........0..., 359

—— Sureifer wee ee eeees 223, 224

——militaris .......... 223, 359

—— militaris........ .... 224, 860

—— mutabilis .......... eee. 859

Page

Ceracis quadricornis ........++ 359

—— sallet ........ Pe eeeee 224, 360

—— tYICOIMIS. ee eee eee 224

VAVIADUS vee c ccc cena 359

CERATOPRION .......0000005 248

SEITICOINE . oe... eee eee 248

Chalchas... 0. ccc cece ec neees 123

CHARIESSA wo... eee eee 187, 346

ChArtvessa vi ceccccccccecuces 164

elegans ....... se eee eee 346

TAMACOPNIS. occ ccveceees 187

vestita ........e eee 187, 346

CHAULIOGNATHINI ........-- 66

CHAULIOGNATHUS ........ 68,277

Chauliognathus .... 66, 67,77, 282,

, 290, 299

cece cece eee eees 282

—— apicalis .......ce cece eee 75

TT 281

—— aterrimus .............. 76

basalis vice cece cee aes 283

bilineatus .......... 72, 279

collavis .......... e000, 76

COUATIS. 6... eve veecnes 77, 282

COLVINUS ...... ee eee eee 281

—— dimidiatus.............. 69

Mimidiatus wo... eee 76, 278

USCUS ove c cane eee eeces 73

—— distinguendus........ 71, 278

—— distinguendus, var.?...... 72

emaciatus ......... cee 75

CMACIATUS Wie ec eeeeeeee 280

——- exiguuS.......... weeees 283

exsanguis .......... 74, 279

faustus ......... 00 ee eee 278

—— forreri ...... ‘eee eeeees 282

—— fuscescens............4. 73

—— fUSCESCENS 6.6... ce scenes 74

—— (?) hereticus .......... 289

—— hastatus ...... bene eee 77

—— hastatus ........ 78, 283, 284

HerOS .... eee ee eee eee 277

heros ...... ween eee eene 69

—— hieroglyphicus.......... 282

histvio ........... ee. 75, 281

—— histrio .i.cccccvccueaee 290

JANUS... see eve cece 71

JANUS vee rercvevecnees 278

—— jucundus .............. - 70

JUCUNAUS wivevseveee ‘1+. 278

limbatus ...... ceeeee 18, 284

—— limbicollis.............. 283

—— lituratus ............ 74, 280

MANGUNAEUS .iceveeees ..» 75

—— MOFI0..... esse eee wore 17

74, 280

INDEX.

Page

Chauliognathus nigriceps ...... 75

nigrocinctus ............ 72

nitidicollis ............ 69

obliquus ..........008 281

—— cdemeroides ........ 73, 279

pallidus ............ 73, 279

pardalinus...........005 280

pennsylVanicus ......000 284

—— profundus ........0..00. 278

Se i>: 68

a 5h 277

—— sagittarius.............. 280

—— scapularis ............4- 77

—— scutellaris...........4. . 288

signatus ...... ee eeeae 72

sodaligs ...... cece eee eee 69

StictiCUS ...... eee eee 280

: submarginatus........6 279

- submarginatus ........4. 280

—— subulipennis............ 282

tabulatus ..... Nene eeee 70

tabulatus we... eee e eae 278

terminalis ..........0085 76

—— togatus ............ 71, 278

LOGAtUS eo ceceveeeee 72, 279

tricolor ..... ee cece ee eee 70

EVUCOLOY vice cece neees 71

tripartitus .......56. 71, 278

5 0) 0 0). on 218

CIS ieee cece eee eee ees 220, 357

Cis.... 202, 324, 332, 354, 358, 359

Pec ce ccc cece cette eenes 358

cece ce ees 358

cee eect teens 358

1 358

—— bidentatus ......cee veces 357

bilimeki................ 222

—hisbidens .............. 221

bishbidens wi... cece cease 357

bituberculatus .......... 357

1 220

bubalus..............0. 221

CorticINUS .........0.04 220

creberrimus ..........6+ 222

—— cylindrus .............. 358

fasciatuS ...........00- 220

Pasciatus weivecescceeee 221

——. MUtAVIS Liv icvvececace 360

ODIONGUS. . ce cece cece ees 358

pilosus ....... eee eee eee 222

—— puberulus ..........66.. 222°

—— punctatus .........-...% 228

subfuscus ........00.04. 857

tetracentrum .......... 387

VESULUS Coe vcvcvcvececns 358

Cladocerus .....404. beeeeeeees 28

Page

CLADODES .... eee ee eee eee eee 31

plumosa........ eee eee 31

CLERIDE voc ese eee cece eee 129

CLERIDES oo... 06... cee eee eee 189

Cleronomus AMONUS ..... 0000s 162

cyanipennis ..... Suenos 145

Aasytordes vo... sev cvvees 145

CLERUS se. cece eee ee eee 148, 338

CLUS ec cece ene nes 160, 165

—— enetcollis .... cc cccccees 150

—— @SOPIUS oe creer eevee 160

@SOPMUS’ Sse ve rcccecees 339

— albofasciatus............ 162

ANCEPS oo... eee eee ees 157

arachnodes........ceeeee 150

assimilig ............0. 149

atriceps..........6. 161, 340

badeni ...........0.08- 148

beatus ....... cee eee ee 154

bicarinatus ............ 152

bicarimatus 1... cee 153

DrcinctUs vive cece eneces 161

-— bilobus .......... ceeeey 152

Disignatus ..... cece eees 159

bombycinus ............ 150

Dboucardt vee cacceecaes 149

CAUTUS wo... ee eee eee ee 152

CAUTUS eee ccc e eee oe. 889

—— CINETEUS........ 0 cece 152

—— concinnus .............. 153

CONCINNUS oo. ccc ceeceees 154

—— contractus...........00. 154

CONEVACLUS vo. ceca we.» 176

—— cuneatus .......... -4+.. 160

CUPL ESCENS V6. e eee ences 150

—— cylindricus ............ 157

decussatus.........0e00. 155

ACCUSSALUS Vo. cece 156

distinctus ..... cece eee 150

AUDIUS Lecce ccc eee eens 147

—— EFTANS eevee ccucees 161

erythrogaster .......6ee 150

—— gibbifer ..... eee. 150, 151

——- guatemalensis .......... 157

NOVEL... eee eee eee ee eee 159

—— hopfnert. ccc eccceeeeine. 155

tchneumoneus ......00.. 148

inconstans.............. 163

insidiosus.......... 160, 339

— letus............. sees. 158

—— lavigatus wo... eeeeee eee 163

laportet ........eeee wee. 157

leucomelas ..:......... 162

——Tuseus ... eee... seve 150

—— meridanus........ veeeee 164

3A 2

364

Page

Clerus mexicanus ....... beens 149

—— mexicanus .... 148, 158, 159,

160

mollifascia.......605 wo. 168

—— mollifasciatus .......... 168

—— mutabilis ......0.4. 150, 151

NEDUlOSUS Lee cevevvvecee 163

NIQTIPES. .. 0... 0 eee 164, 340

—— NUGTUPES cere cccnnes 338

—— nigrocinctus.........+6. 161

—— nigromaculatus......6.0+ 150

— nitidus ....... sere eeeee 162

—— nitidus 6. cece eee ceees 163

—— nodulifer .......... 150, 339

OCEMALUS. Lo ccc eee cane 156

Te 156

—— opifex ............000. 156

—— OFNALUS vee enna 155

Pictus ........... eee . 155

—— pilatei ...... Teen eeees 164

— plagiatus .............. 339

—— puellus ........... 0.00. 339

quadrinodosus .......... 151

—— quadrinodosus .......4.4. 339

quadrisignatus ......0.6. 148

recurvatus..........0008 158

TEPANAUS .ivevececseues 340

POSMATUS . 6c. cceeeeeees 156

—— rubripennis .........606. 165

TUPWVENETIS. 6. evens 150, 164

—rutilus .......... eee 155

—— salvini ......... cee eee, 156

| 155

sanguinipes ............ 154

— scutellaris............., 162

—— semiochraceus .........4. 149

— signatus............000, 159

—— SIgnatUs..........0000,. 158

—— silbermannt .....e. eee, 149

SODTIUS . 6. eee e eee eee 150

—— sphegeus ....... ... 150, 838

spinolee .... sce cece eens 155

thor acicus .....6.04. 145, 338

—— trifasciatus ... ccc eae 340

—— trogositoides........ seas 162

— tubercularis ............ 153

—— VATIUS 2... eee cece eens 161

——-— venator............ 159, 339

—viduus .............00, 150

—— villicus .............. .. 340

—— vulneratus.........4. .». 158

—— vulneratus 6... cevcccecae 159

+—vulpinus ..........000. 149

— x-album........ aeeeee .. 151

—— P-ADUMN Lee ecevenes .. 152

—— rebra...eeccceceseceess 153

INDEX.

Page

Clerus zebra wveseaee ceeeeeee 152

Caclomera .eseececaes vevevee 187

COLLOPS cee eeeee ecco 118, 318

Collops .......64. be seeeeeeee 122

—— aulicus ..... ee cece eee, 1138

—— balteatus ..........000. 315

bipunctatus ........ 113, 318

—— bipunctatus .........065 315

— blandus................ 316

Gecorus ....... sees eee 114

femoralis .......... 118, 814

—frontalis ...........06. 314

—— geminus .......... 118, 314

GEMINUS ec nccnncenes 114

— histrio ............ 114, 315

—— histrio occ cc ce ceeeeee 316

intermedius .........06. 315

—— punctatus.......ceeeeee 316

—— punctatus ....... ... 813, 817

—— quadrimaculatus ........ 315

—— quadrimaculatus 1.1.1.4. 114

— tricolor ............ 118, 313

tricolor... eee eeues 314, 317

— tricolor, var........... .. 814

—— validus .......seeeeeeee 314

—— vittatus..........6. 114, 816

COLYPHUS.......cceceee 141, 335

Colyphus ..122, 145, 164, 307, 336,

337

— bicolor ............000 144

—— hbilineatus ...........;5.. 335

—— bilineatus ...... cece eee 336

—— cinctipennis ...ccccceees 148

—— Collaris ....... cece ee eee 144

—— criocerides .........eee 144

distinctus ...... eee eens 1438

Gistinctus oo. ce ceeceneee 336

JLAMMEUS Lecce ccveccues 142

flovalis ......... 0... eee 142

Oracilis ..... cece eee eee 337

—— lateralis.............04. 142

lateralis ......... eeceegs 336

—limbatus .......... 144, 336

— limb atus... cece ccccccces 338

—— marginatus ....ecsceees 142

— mutabilis .............. 142

nigrifrons .......... a».. 142

—— nigriventris ..... ateecee 336

—— nigriventris ..... ae eaaee 337

orthopleuridus .......... 144

—— quadrilineatus .......... 141

—— quadrilineatus ...... 148, 144

-——— relUCENS. ..... cece ee eeee 336

— signaticollis ............ 148

—— signaticollis ........ 144, 336

—— telephoroides ...... 142, 835

Page

Colyphus telephoroides ........ 288

ventralis . 6... ccc eee ees 141

ventralis. csereveces 142, 288

vittipennis ........+. .. 148

Corynetes oo. ci cecevccceees . 192

PUPiCOUS vi srssceneees 193

0 . 198

CORYNETIDES ........e0eeee 192

CRATOMORPHUS.........-. 51, 270

Cratomorphus ........ 58, 257, 271

albomarginatus ......064. 51

—— altivolans........... .». 270

—— concolor .........eeeee 270

— dorsalis ............ 52, 270

fabrictt occ cece ce eee 51

—— fasciatus ............ .. 271

—fuscipennis ............ 51

Suscipennts ........4. 52, 270

GJIGANteUs oo... eeceveeee 51

VAbUS Lecce ccc ee eee eee 51

—— ovatUs ........e cece eee 271

OVAUS occ ec ecunee .. 257

— picipennis .............. 52

CYMATODERA .......... 1380, 333

Cymatodera ..ccececeees 182, 334

angulifera ............4. 138

ANGUILFETA Vo veeccccccnes 334

—— angustata ............., 188

ANGUSLALA Wc eececeeeaes 136

bipunctata ........ 135, 334

—— caleformicd ...icesseues 182

championi.............. 131

— ChAMPIONE oe ee ce ccccees 132

— cylindricollis .......... 185

cylindricollts 6... cece 134

—— depauperata........ ae 188

—— discoidalis.............. 131

CMATGNALA oo. ee ccveeee 130

— fasctifera vo... cece cece. 186

—— flexuosa....... bee eeees 186

—— lCLUOSH. ce eccvcncnes 189

geniculata....... ... 188, 334

GJeniculata oe eccvccceces 134

grandis ........ eee e eee 130

QTOSSA oe. eee cece ee eee 138

GTOSSA seeeeee, Se eeeees 137

HOgeL... eee eee eee eee eee 135

hopei..... eee eee eee 130

liturata ........ cc eee eee 134

lunulata’ ...........04. 133

— lunulata...,.... 134, 833, 334

—— marmorata ..........66. 136

——— MAYMOTALA wevsvccecee. 137

MOEA... evcvcccccecs 180

——nitida ............04.0. 134

—— ovipennis eee ee nes 138

Page

Cymatodera pallidipennis .... 132

parallela ..... oe... 182, 333

—— piloselld ... cc cee ccceeaes 138

—— sall@i oo... cc eee 130

saturata....... bee e eee ee 334

S€TICANS... 2... 0. eee eee 333

TOEXANA 2... cece eee ee ane 134

—— undata ................ 137

—— undulata ..... ee... 134, 187

—— vagemaculata .......... 137

vagemaculata........e00. - 139

—— valida ........ ee cee, 137

VANE. oor vccccccccees 138

CYMBOLUS..... 0... ccs eee 824

Cymbolus vie c cece ceccveees 325

—— castaneus ...........66. 324

—— punctipennis............ 325

—— rufopiceus.............. 324

PUFOPICEUS voc vee cvcceees 325

DAIPHRON ...........066 66, 277

Daiphron vc eivieccvcccvcveees 77

—crassicorme ............ 67

JUG oo ccc cece eens 66

—— lyciforme .............. 66

—— lyciforme oo... cc. ceca 67

— ochraceum .......... 67, 277

proteum............ 68, 277

DAnac@ veeivvvvccccvevcuae 125

DASYTES 2... eee eee eee eee 326

Dasytes.... 123, 126, 145, 327, 332

PUSCUS. Lec cece eee eens 328

—— hudsonicus ............ 326

Audsontcus vs... ee ceveeee 329

NUJCP voc vvcacencenscues 326

NAGVORNEUS os ee eceeeeee 327

——— PUPIPENMS vec vccevcces 327

SULUTAUS. Lo cece eee eeeeee 327

Dasytides oi. cceccvceveccees 123

Dasytiscus precov.... ce... 330

Derestenus oi. .c se ecccccccees 141

COMATIS Lice ec e ec eeees 144

distinctus .......e.ceeee 148

lateralis ....... See ee eee 142

mutabiis ....eecceeeees 142

NUGTUTONS ec vevsscveaes 142

—— orthopleuridus ,. 141, 142, 144

—— quadrilineatus ......6... 141

SO 141

—— VIELIPENTS Lovee cerevenes 148

Dereutes....cccseees 147, 165, 177

Dermestes ruficollis .......... 193

rufipes ..... ep tadecceess 193

Dictyoptera sanguinea ........ 7

DINODERUS .......0..4. 217, 353

—— perfoliatus.............. 353

INDEX.

Page

Dinoderus perfoliatus ........ 354

punctatus .......... 217, 353

pusillus oe... cece cee eee 217

—— substriatus ........ 218, 353

substriatus .. 6. eee ceca ee 354

Dioptoma vic eecccccccccccee 63

DISCODON ..........000. 78, 285

Discodon .... 88, 85,89, 91, 94, 283,

284, 287, 288, 290, 293,

297, 805, 811

— Pod ceececeeeeeees 285

bivittatum........5..... 87

bivittatum «6... 0000s 90, 283

—— calidum.............005 285

carbonarium........ 80, 285

carbonarium.... 82, 286, 287

——cinereum ..........5.4. 286

CUNEPEUM ee eeecceceues 304

cleroides .......... 84, 287

—— difficile........... . 86, 288

—— dubium............... » 85

CYOSUM ........000, 79, 285

CYOSUI vec ccncccerveuas 78

flaccidum .............. 88

—— flavicolle .......... 81, 287

— flavicolle .......... 86, 293

histrio ............ 86, 288

histrio vc. esse e eee 92, 290

INCISUM ... 00... ee ewes 79

UNCISUM wee ecccrseeceees 80

lugubre ....... 0.000 eae 85

Ingubre 6... cece eee eee 288

—— luridum................ 85

—— luridum wo... cece. 86

——marginatum........ 80, 286

— melancholicum.......... 81

melancholicum ...... 80, 82

NIQTIPES ... ee eee eee eee 80

NAQTUPES vee ccecccceees 293

normale............ 82, 287

—— oppositipunctum ........ 87

perplexum’ ........ 83, 287

PerPlELUM wiv ecccccneees 288

—— photinoides ........ 84, 288

—— photinoides ........04.. 85

— plicatum .......... 79, 285

plicatum ...ecececees 78, 80

purpurascens............ 87

serricome .............. 288

GENUC . eee eee eee e eee 286

EYISte . 6. eee cece eee 82, 287

vitticolle .......... 81, 286

DiteMnus voc ccccccccaes 91, 95

Ditoneces ..cccscccccccseaee 243

DOoRCATOMA ...... cen eeeeees 208

Dorcatoma...ccccccccces 203, 850

Page

Dorcatoma eontracta ........ 209

contracta ..... sev etenes 351

JUAVICOTNIS vec seccveeeces 208

—— quadrimaculata ........ 209

—— quadrimaculata .... 350, 351

—— tomentosa ...icceeeseees 208

LOMENFOSA ..ce.res seeace 350

DRILOLAMPADIUS....... . 33, 251

Drilolampadius .......4. .. 35, 94

scutellaris.......... 33, 252

Scutellaris vo... cece eaes 251

stolatus............ 33, 251

SCOIALUS oe cece cence 252

DROMANTHUS ........06 121, 322

Dromanthus vec ccvcccvevcces 323

decipiens ...........44. 122

MeCUpienS vo eeeecssvvaee 322

AISCOICUS oe eve ce eveuee 323

jucundus .......... 123, 3823

laticornis .........0000% 822

laticornis ..iccecccceees 823

nitidicollis.............. 322

nitidicollis .....eceec eee 323

OPACUS 2... cee cece eens 122

OPACUS ve cscsvcaceveees 322

—— quadrimaculatus ........ 122

EBRUS ...c. cece eee e eee 120, 321

EDGUS occ ce eee eens 118

eeneo-VIrens .......0..6- 121

MINIMUS ....... eee eee 121

—— punctatus ../........00. 321

seminulum ............ 121

SCEMINUWUM .accccaccsenes 321

Elllychnia vicecsvccccccveees 49

CONPOPNACA. co ce cece uence 49

——— MEXICANA vececesscevces 49

Emplectus oo. .eccccees 13, 28, 247

bimaculatus ....cceceees 247

Finneadesmus ... cc cecccceeees 214

ENNEARTHRON....... seeese 223

Ennearthron vicvvcvcccccceces 224

multipunctatum ........ 223

ENneatoma wvcccccceccceccces 208

EINOPLIIDES 1... eee eee cece 178

Enoplium ...... 184, 185, 187, 192

ALEYTUMUM . ec e neces 181

CYUNEUME eee eee eeaee 190

AUSCOlOr oo sce ev cece ceces 192

humerale wo. cece ec ees 184

—— pallipes vi. ceveccceccees 192

thOracicum. .. 2. .escceees 185

EPICLINES ..... cee cee eeeeee 165

E—piclines... cc ccc cece as 147, 181

basalts oo... cee eens .. 181

—— Viridieneus ........ wees 165

366

Page

EPIPHL@US .........4.. 166, 340

Epiphleeus occ cece cues 167, 341

chevrolatt 6.0... ccc eee .. 341

erythrocephalus ........ 167

marginipes ........ 166, 341

PYINCEPS.. 6... eee eee 340

—— punctatus ...........06 167

Setulosus wo. eee se evens 166

LEPZONALUS ».eresssee 166, 341

EV0S vic ceee ec cnees 1, 24, 27, 287

bogotensts vie... eeveees 21

— canaliculatus oo... 66.000. 239

—— humeralis ... 6 cee cca 237

ODUQUUS Lo cece cece eeene 14

—— phoentcurus vi eccsaccees 26

trUlinedtus 66... cc ceeenes 237

Burd voc ccc cece eens 194

EUrrhacus voce cece cee eens 13

LUT YCPANUS ec ees 165

Eurymetopum oececcevcccees 165

EURYOPA ..........000. 108, 812

Euryopa. sc... ‘see eevee 106, 110

Peace eee eee 312

——'brunnea............000, 109

fusca ....... cee eee 108, 312

NIQTA ... eee ee eee - 109, 812

NUGTA vec eveeee Seen eae 107

singularis .......... 109, 312

SINGUIATIS Vee eee e eee 107

BULyPus voce ccc ccccccveeas 223

Haplocnemus .... 0.0 cece eee 327

Hedobia oo. eee eee 194

tmper ator v.ccecececeees 199

HELCOGASTER .............0. 823

—— (?) atratulus............ 323

pectinatUs oe. ceiceeees 823

HOLOMALLUS .............. 825

Holomallus ..... ene eer aeans 326

aurivillus .............. 326

FYAS oo... eee ee eee 30, 250

Hyds «0... 31, 46, 256, 271

—angularis .......... 30, 250

angularts v6... eee. ee. 31, 54

lugubris........ wee eeee 30

——rhomboidea ............ 30

—— semifusca ........., 31, 250

SEMUUSCH vee eecesecee 256

HYDNOCERA ...... sees 168, 34]

Hydnocera........ eens 177, 344

Pec ueeveeunences 344

Pe eee eee 344

SR See 344

Se ee 344

aeneieee ST 344

coeneeieeen SCT 344

INDEX.

Page

Hydnocera ——? .......0000. 345

~ DECATINAEA vic ceveveceues 176

bituberculata .......... 176

— bituberculata......... ... 348

COTUED vee eee wanes 174

——chalybeata ........000. 170

chalybeata ......... weeee L771

—— CINCTA. cece reece eee 175

LG 176

— Clavata ..... ee eee e eee 172

——corticinad ..........066, 178

COFLUCINA eee eee eeeeces 174

cryptocerina ............ 175

CrYPtOCeVING ... cee 176, 348

—— cyanipennis ............ 175

—cylindricollis .......... 348

Jlavifemorata .......eee 171

— furcata ............08.. 342

fUredta vii ie cece ccc eee 345

—— guatemale ....:....... 168

— hematica .............. 172

—— humeralis ..... ccc cece 172

IMPTCSSA ..... eee eee eee 176

Intricata..... cece eee eee 174

lateralis... ... 0c. e eee eee 169

lateralis... . eee eee eee 170

Uimbata oo. eee 168, 342

longicollis .... eee cece ee . 170

—— marginata..... eee ee eee 168

marginata...... 177, 341, 342

NIgTO-2NCA ........000 174

——— MYP0-ENEA oe eee eee 175

nitidicollis.............. 171

—— obscura ...... eee eee e ee 172

ODSCUTA oo. ee eee eae 178, 342

—— pulchella .............. 171

—— quadrilineata .......... 177

TUdIS ..... eee eee eee eee 342

SCADA eee e eee 342, 343

scapularis ...........04. 170

—— sordida ........... eae, 173

subulata .............. 169

—— subvittata.............. 170

—— suturalis? .... ee... 341

suturalis ........0. 168, 342

—— testacea.............e 169

trichroa....... bee e ee ees 171

vitrina ........ eee eens 343

HiYDNOCERIDES ............ 168

FTYAnocerus vec cccccucaae 168

HTyleceetus vee ec cee eee 110

brasiliensis... 6... eee ee 110

Hyphebeus....... be eeeeunees 120

ICHNEA ....... cece eee 178, 345

Iehnea...... 94, 181, 182, 183, 185

Page

Ichnea aterrima...... we tienes 181

CUCUMCINCLA 6 ...4+6+6424 180

disjuncta ..........006. 180

ugesi .... sc ce eee eee 181

enoplioides ..........-, 180

—— fUNESTTA Lecce revcreees 178

histrica ........... lene 178

lattCcorntSs vic seccesevces 178

lycoides ........ 178, 180, 183

MEXICANA ..... eee eee eee 179

—— mexicana ...... 15, 178, 180

mitela oo ceccvcccnnues 180

—— panamensis .:.......... 179

PVAUSLA ove ec ccneevenes 180

VeligiOSA. 6... eee eee eee 180

SULUTANS voce e cen ecenee 345

— trilineata oo... ccc eens 182

vitticollis ...........04. 345

vittecollis oo. cece eee 192

Tchthytrus vic carcvcccvcvccas 98

ISOLEMIDIA ....... eee ee eee 177

subviridis .............. 177

LAMPROCERA .......... 29, 249

Lamprocera ....scsuee dacees 30

CAStEINAUt . 6... cee eee 249

- latretilet. 6. eee 30, 51

Picta ...........00, 30, 249

Lampyretes plumicornis ...... 62

LAMPYRIDE ow. eee eee 29

Dampyvtd@ ci civcvvvcccceees 65

DampyrtS vi vccccvvcvvevcnes 187

COTUSCUS. . eee ce cece eens 49

0 Ad 273

UNUAL Lee cece c en cecee 55

—— laterdlis ci. ccc cca 53

laticornis oo. eee 37

RG (rr 265

VEPSICOIOY veecevecevcaee 59

rr 265

Lst0dCVA vee ccc cece ueees 187

LASIODERMA............ 198, 347

SeITICOYNe ........., 199, 347

CESLACEUIN occ eeccences 199

LEBASIELLA ........0.. 0000, 192

—— bisbinotata ............ 192

—discolor.............00. 192

Demidid vec cecccvccaee 168, 177

LEMPHUS .......... cee eee 321

Demphus. vc ccccccvvccces 121, 323

fulcratus ..ccecece cece. 321

MANCUS Loc escececvcnves 321

SCITICOMMIS...........00. 321

EAbnetts voce cece cee caee 248

LINOPTES ........ “bee eeeenee 247

Page

Tinoptes ove cvvccccccnecccens 248

imbrex ..... este owaeve 247

LIOOLIUS ...........00. ‘203, 347

—— EXiQUUS ........... veeee O47

—— glaber ...........ce eee 203

Glaber icc cwaccccncces 204.

-ovulum ......... ve eeeee 205

—— pubescens .............. 204

—— punctatus .............. 203

punctatus ....6..00. 204, 347

striatus 6.6... .. eee e ee ee 204

LISTRUS... 6... cece eee ee 125, 329

Tiistrus cee icccccccevees 126, 330

Po eee eee e eee eeees 329

—— emeus.........4. veceees 125

—— @NEUS eee rervnes .. 127, 329

canescens .......... 126, 329

CANESCENS vie csvsveceees 127

corallipes ..... 0.00085 127

COPAllipeS .iccrsvvceeces 125

—— cupreo-nitens .......... 125

ferrugineus ..........0. 330

IMPTESSUS ....... ee ee eee 829

metallicus...........00. 127

—— punctatus .......... 126, 829

—— PYFMLUS 2... eee eeeae 329

rotundicollis ......eeceee 126

——-subcyaneus ............ 125

versicolor ......... e000. 126

LOBETUS 2... ee cee eee eee eee 98

Dobetus vevvccevcccsccveaees 99

— abdominalis .......... 98, 99

—— mirabilis .............. 99

—— mirabilis oo... cece eee, 98

torticollis oc. c cece eee 98

LUCAINA wee cece cece eee e eee 228

—— marginata.............. 229

—— schini...............0.. 228

SCHINE eee cece cece e eee 229

LUCIDOTA ............., 34, 253

LIucidota,... 29, 35, 36, 48, 254, 256,

257, 261, 262, 263, 266

——amabilis................ 254

——apicalis ............000. 36

apicalts ......66. ceeeees 206

——apicicornis ............ 35

—— ATA cere ccccccccnes 37

ATA cece veveverencace 36

—— bella .......... ereaenes 35

— bella ........ .. 44, 262, 263

californica ...s.cecees we. =49

—— chiriquiana ............ 256

—— chiriqguiana wi... .cenn, 257

—— comitata ....eeeeceeees 258

COMM AL. ce vccccceees 266

INDEX.

Lucidota complanata ..... ... 257

complanata. .i.veeeveee . 258

diaphanura ........ 36, 258

— difformis ....... be eeeee 255

—— discolor ............ 37, 258

SC 256

CXSTUNCA ce cvcsaceveees 48

— fenestrata ..........000. 257

- flabellicornis ..... te eeaes 253

Sumosa ec eeeeeeee 256

fuscata ..... cece eee eee 258

—— incompta ....... ce reees 253.

limbata ....... 0... cae 36

—— limbata oie cc eeeeuns 60

lUgenS 6... eee eee 37

osculatii beeeaee 35

osculattt.......64. 36, 60, 254

—— rubricollis.............. 35

PUFA vo ccvcrcrvcrcccnes 256

silphoides ............ .. 35

— sinuatocollis ............ 255

ChOVACICA veaecceceeveas 35

—tincta..............000. 255

NCA. eee ecseceecceuns 266

vitricollis .............. 256

Vitricolls .receceecucaes 257

xanthopleura .......... 254

LUCIDOTIDES..........000008 29

9 OT) 63, 108

LYOIDE wo. eee cece cee eee 1

LYCINE 2... eee cee eee 1

LYCINELLA ...........0000 248

——— OPACA eee eee e cece eeee 249

parvula ......... cc eee 249

LYCOSTOMUS............. . 4,225

Lycostomus....... 8, 27, 94, 239

angulatus .............. 225

—— bucolicus .............. 226

carnifex........ 0... c eee 6

—— championi.............. 5

—— deustus ............000, 5

Puuliginosus .. 66. e cee eveee 4

—— lineicollis .............. &

loripes ...........06. 6, 226

ortpeS ccc eeecececaeeee 5

—— rusticus ......... 0.0.00 226

—— sanguineus ............ 226

—— semiustUs ........00 eee 6

sommeri. ............ 6, 226

SOMMETE. co eeceecevecees 227

—— sordidus.............. 5, 225

SOPAIdUS. .. eee eens veer 4

— tabidus .............00. 4

ChOPACICUS 6... cece ceeees 4

LYCTINI. oo. cece eee eens wees. 211

LYCTUS wo. ee cee wees

vs Q11, 852

367

Page

carbonarius ............ 211

QTISCUS os... cece eee ees 212

—— prostomoides........ 212, 352

LYCUS. 14.666. ebb ve ccceee 1, 225

TYCUS vv vecccee ... 3,4, 66, 86, 183

carmelitus...... Cob enees 2

- cruentUs, VAR. ce cues vo. 225

fernandezi..... Aare 2, 225

fuliginosus ...... Pek eeee 4

godmani ...........64. 3

GOUMANG veeciccvcacees 4

— lineicollis oc ccc cece 4

Lortpes ev eeccccccccees ' 6

marginellus ....... veaee 23

reticulatus ..6..... beste 10

—— sall@i.. ec. cece eee 3

SANGUINIPENNIS Loe. ecceee 239

schonherri....... we eeeee 2

—— scutellatus.............. 3

SEYTALUS cove e cee ccneees 11

CESLACEUS . cece ececeeceees 6

TYGOvUS ove cccccctcccaee 97

LYGISTOPTERUS .......... 7, 227

LY Gistopterus vsvccccvecvees 8, 228

Poke cece eeeces ».. 228

—— amabilis................ 7

— ceruleus .............. 227

CLUMIUS oc ecvecececenes . 7

—— flammeus ....... Se esvee 228

—— hematopterus ........ 8, 228

—— letus.......... cee eee. 227

—letus...... be acceeivctes 228

NODILIS .. cece e eee eee eee 7

PEVFACEA viecessesvecee 7

PUDTYENNIS ....ceseeeae 228

sanguineus..... eee oence 6

sulcicollis .........0..4- 8

sulcicollis vseecssecucees 228

LyMexylon vvcccvcccvccvccees 110

LYMEXYLONIDE .......0.00, 106

MACROCIS . 0... cece eee e cues 219

MACPOCI8 epee ccc ec ceee Teese B04

BISON ve vccscccvceeces .. 220

—— diabolicus o.cccccccceees 220

Setifer co cccceeccsscees 220

—— CAUTUS ceeeeiccevcccces 219

CAUTUS cevevveceveccene 220

Macrogaster .isesees. be ccees 111°

Macrolampis ....6.eees 40, 42, 260

CLEENSUS Weve vecees seoee

longipenMis sissceseeees 40

-MALACHIIDES ..........080. 112

Malachius bipunctatus ........ 118

quadrimaculatus ........ 815

368

Page

Malachius tricolor .......00005 113

VUEAEUS Lecce cece cnnnees 114

Mauacocis ..... beeen eeeege * 356

championi.......... vee. 356

MALACODERMATA...... ceeeee 1

MALTHASTER ,...cceeeceeee 311

suturalig .....eeeeeeeee 311

MALTHINI .......06. cece eaee 97

MALTHINUS ,.......0005 102, 309

Malthinus ...... 97,101, 103, 104,

105, 310, 311

— Peace eee ee eeeee 310

brevipennis ......++e00. 104

championi......... seve 102

cruenticepS ....... . 104, 310

CTUCNLICEDS sve vevee weeeee 105

fasciatus ...seseves we. 104

—— flavipes .,....... ... 105,310

laticepS . 2... cece ee eeeee 108

MAJOP. eee eee eee eee 102

, occiptalts .icseseseceees 104

terminalis .......... 108, 309

MALTHODES ........006. 105, 310

Malthodes ....+...4. 97, 103, 811

Slavo-guttatus ..ses.eeee 108

———_ MISEIUS Lee seseccccceves 105

pallipes ............ 105, 810

sanguineicollis .......... 105

—— sanguineicollis .......6.. 310

12) 0: 310

MARONIUS ...... eee eee 100, 309

dichrous .......... 100, 309

Mastinocerus ...... tenes 106, 109

LOEXLONA ve ccecuccavecces 109

Megadeuterus..ccccccecccvere 113

Rhaworthi vvcevvccccccee 114

MEGALOPHTHALMUS .... 934,252

— collaris ............. eee 253

costatus...... been e eee 252

godmani .......... 34, 252

—— guatemale ............ 34

ObsoletUs ..... cee seen 252

MELITOMMA .......0000. 110, 313

brasiliense.......... 110,313

- CaStANEUM oo... eves 110, 111

MELYRIDE wees eee e eens we. 112

Melyrid@ wisccccccccvvceuae 123

MELYRIDES ...... Chee e eens 128

Melyris ....ccceuee aeees 123,128

MELYRODES ............ 128, 831

Melyrodes wi... cece venues 332

crenata ..... ene ence ens 128

CTOMALA veseccecvcaccees 331

perforata .............. 331

Melyrosoma .oveveecees woe. 128

Metriorrhynchus sisceceseeee 1

INDEX.

Page

Mezium visvevens ceesoeevesee 194

MICRANOBIUM ........e00e0- 202

—— exiguuM ......e..e000- 202

pulicarium ........60- 202

MIROSTERNUS ..ceeceeeceees 349

Mirosternus ...ccccccees 347, 350

brunneivillis............ 349

substriatus ..........++ 349

Molorchus ..cccsesevevvveves 100

NECROBIA ........ aactes oo» 198

Necrobia......0. be eeeeees 192

ruficollis ......... wees. 198

rufipes ...... see eeeeeee 193

NIPTUS 2... eee eeeeeees 196, 347

NUtUS co cece cece cere ecenes 198

GONOSPETME ..ereceeeaee 198

ventriculus ........ 196, 347

Notoxus Giganteus ..sscesseees 1380

GTANMIS Wo cceiveevevuees 180

NYCbOphaneS .icvcceceveereee 53

UMMA. occ eevccccecrees 55

Ochotyra...... eee eee e ee eee 63

OlesterUs..cicseccseccccveeas 160

Opetiopalpus .icccsaccccvcres ‘192

ORTHOPLEURA ......005. 184, 345

Orthopleura oc cee ec cues 185, 186

bimaculatd...... cee 185, 186

binotata,...... cee eee eee 185

DUiNOEALA Le ceeeencenee 186

damicornis ........ 185, 345

AAMICOTNIS. . 2.60 s eeeeee 186

ichnoides ........++000. 186

—— punctatissima ..ssccaeee 185

—— purpurea ..........000, 186

sanguinicolls, ...... eee. 185

suturalis...........0000, 185

teneroides .........0.085 186

PAChYMCSUA eee vvecavcncees 95

PARASILIS 6... cc eee eee eae 307

colyphoides .......... 2. 808

—— vittata ...... cee eee eee 308

PELONIUM ......0 eee eee 187, 3846

Pelomum vevesvsvcvvcaee 184, 190

——amabile........ Deceseee 189

—— amoenum .......... 188, 346

bilineicolle ............ 190

COUATE ii eaveeececeees 190

crinittum ............., 190

CLTFANEUM voce svcerecces 187

fascrculatum vo. ceceeeees 188

flavolimbatum .......... 190

helopiotdes 6... 000. eee. 188

—— humerale .......... 184,190

Page

Pelonium inscriptum ........ 191

lampyroides .......+. 008 346

— lineolatum.............. 191

luridum.......e.+..00.. 346

—— metallescens............ 189

——_ MAUMATE rv ececccccvees 184

nigroclavatum ........ 188

notabile...... 2... eee 188

—— octonotatum ............ 191

pennsylvanicum .. 185, 345

—— percomptum............ 189

——— NCWENETE veer ecccecenes 188

—— PUOsuM ve eevccvecvens 184

—— quadrisignatum ........ 190

SCOPATIUM coc cecvccccnee 188

SEMIVIUEATUM 6 eee ecnees 188

SELNOLATUM vv eeceeceeee 191

stenochioides .......... 188

PH@NOLIS..... 0. eee eee 31, 250

PRENOUS 6. cece ewes 44

laciniatus .............. 31

nigricollis ...........60. 32

— ochraceus .......... 82, 250

OCRYUCEUS Lo cece cece 31

ustulatus .......... 32, 250

PHENGODES ............ 63, 276

Phengodes ...... 65, 106, 107, 108

bimaculata ........ 63, 276

bimaculata..... cee eee 64

— bipennifera ............ 65

—— fusca .............0000, 64

—— fusCICEPS verre eeceee. 63

MINOL..... eee eee. 65, 277

—— nigricornis.............. 64

—— IUMOSA vos vs rvuee 638, 64, 65

—— pulchella ....ccseeee, 63, 64 -

PHENGODINI.........000000, 62

PHAUNYVA ccc cc cvccccccccces 187

Phiocophtlus ..ceelecececeees 332

PHONIUS ..... ee cece ee enna 145

sanguinipennis .......... 145

PHOTINUS 1... ee eee eaee 38, 258

Photinus..,, 35, 36, 39, 41, 47, 48,

50, 51, 53, 56, 58,77, 81, 84, 88,

89, 141, 254, 259, 261, 262,

265, 267, 269, 275, 299

—— affinis...............08. 47

— albicauda .......... 46, 264

AUDICAUdA oe ceeeeeeeee 262

AMADUIS oe cece ce eeeee 254

ANGUIALUS eee eee cee 50

ATMATUS . pee eee eee eee 265

armatus ...... 285, 267, 268

—ater .......seeeeee 49, 269

—— attenuatus............ .. 4l

— auranticollis ..e.seveersss 44

Page

Photinus aurora ........ 45, 264

UOT een eens 262

autumnalis..... e005 wees 4D

—— (?) brevicornis....... wee. 262

californicus ...ceeereves 48

—— championi.............. 267

cinctellus ............4. 42

— cinctellus ........ 40, 43, 58,

254, 260, 261

—— concinnus ...........46. 47

CONCUINNUS vecessceeevves 258

—— CONQTUUS ....eeeesseeee 38

—— congruus ........ 89,89, 259

—— consanguineus .......... 42

— CONSANGUINEUS ....eeeeee 261

COVMOVE... eee eee eee 45

—— COLUSCUS. .. ee eee eee ees 49

Giurnus ......... 0.008. 266

—— MUYNUS 6. rece eccees 299

0) 264

COUS .eceecceeseeee 200, 267

—— exstinctus.............. 48

CLSEUNCTUS .verecaeee 47, 266

—— exteMSUS ....,......05, 4]

CXTENSUS. cco ceveveees 42, 48

flohyi... ce. eee eee 262

—— fumigatus .............. 46

—— fumigatus........ 45, 47, 266

gliscens ...... eee sescnes 39

GUSCENS Lov eeeveecvvece 89

guatemale .......... 44, 263

—— quatemalé oo. ceveceecees 264

ignis-fatuus ............ 259

INCONQTUUS .....e eevee 258

Incongruus ..... coeeees 259

incongruus, var.?........ 259

infirmus ..........006. 260

INfITMUS vec eccrvcceees 263

—— latiusculus.............. 46

latiusculus......ccecenes 267

longiypennis ...+.46. wee. Al

Wcrferd sic vsecececeees 43

—lunicollis .......... 44, 264

—— lunicollis ......cccceees 263

meteoralis .......... 38, 260

—— meteoralis i. cvverevcces 259

—— MeEXICANUS....... 0.0 e eee 49

— minusculus ............ 268

—— MINUTUS vec eccccenee 47, 48

——— MOCStUS. - cee veeseeceees 264

—— montanus...... eeeeeeee 263

—— MONEANUS Wie eercceeeees 267

—— NUJTICANS voc eececees 48, 266

—— nigridorsis............ .. 39

—— Nigridorsis.....scereee . 40

— nigro-limbatus.......... 263

BIOL. CENTR.-AMER., Coleopt., Vol. III. Pt. 2, May 1886.

INDEX,

Page

Photinus opacus ... 00.006. sees 49

OvatUS ......e eens vee. 40

—— parvulus ..........000. 47

ParvulUus ..eceveees wees 268

—— perelegans .......... 40, 260

perelegans ......4. ceeeee UC

—— perlucens ........0.000, 46

—— picticollis.............. 48

—— plumbeus ............6- 47

—— plumbeus ...seseeveeees 258

productus.......... wees AL

—— pulchellus.............. 47

—— pulchellus ..sccsercceees 260

purulanus .............. 267

—— pusillus.............. .. 268

——. Pyralis vocieccccseveves 42

radians ,....... see eeees 261

Teichei ......... eee eee 43

——tuficollis ...........66. 44.

— ruficollis........ 45, 262, 263

SAlVINi wo... ce eee eee 44

—— sanguinicollis .......... 45

—— sanguinicollis ...... 262, 264

— signaticornis ............ 267

simplex ....... 200s sees 42

SUMPIEL ove vesevevevenes 262

—— sobrinus ...........05- 49

SODPINUS 6. ce. ceeeee 48, 266

sturmii ...........4. i.e. 48

SCUFING va ceeeeeeee wee. 44

subfuscus ..........000. 265

—— thoraciceus ...... 2.00000 35

-—— volcanicus.............. 260

—— voleanicus .......04% 261, 275

PHOTURIDES ....... sees cues 56

PHOTURIS ........0.000 56, 273

Photuris .... 35, 36, 81, 88, 89, 274

Poke cece eee eens 274

—— AMONA ....es.eeeee 58, 275

AMONA vivsssecesevvees 59

—— ameena, var. nitida ...... 275

brunmipennis.....s.e00.4. 60

Collaris ............000- 58

collaris ....6.6. .. 44, 57, 273

Oo 274

CTASSA seve ssavees woe 276

—cyathigera ............ 57

discicollis............4. 57

facialis ............ vee. 59

FACIANS Wovveecceceeenns 275

— fasciata...... eecec coos 56

FASCIA vee eee e en neeee 68

—— frontalis .............. 274

Frontalis ...ceeeeeeee 60, 61

fruticola ........0000, . 60

fruticola .isevevvcueees 61

Page

Photuris funestis ....ceceees » 61

hectica ........e0e 00s .. 273

— livida..............0 08 273

— lucidicollis........ .. 58, 275

— lucidicollis .......... 35, 254

— lucidicollis, var. sordida .. 275

—— lugubris.............005 61

— lugubris.......... weeeee Bl

—— mexicana .............. 57

——mollis .............0.. 61

——_ Mollis vo... ccveceves 88, 274

pennsylyanica ...... 59, 274

—— pennsylVanicd ..svccseee 259

—— scapularis...., See aawens . 62

SCAPUIATIS . eee ae cece «. 276

simplex ............ 61, 276

—— sompled oo. .e cece ee enees 62

telephorind ......00e00e 56

—— trivialts . 6... eee e cece 60

PHYLLOBZNIDES............ 166

Physonota ..cecccsvcveee 53, 273

PbS Lecce ccc cceenceeeees 197

PITNUS ..... ee eee eee eee 197

PygMeus ..........008. 198

PLATEROS ......... e000 19, 237

Plateros .... 25,27, 28, 90, 94, 238,

236, 238, 239, 248, 244, 245

—apicalis ............ 20, 238

apicals 1... 6... ce eee 25, 241

bogotensis...........00. 21

DOGOLENSIS 6... cece eee 239

bourgeoisi .......... 19, 238

bowrgeotst ....... eee 24, 25

bugabensis ............ 241

bugabensis........4. 237, 296

—— canaliculatus........ 239, 240

carbonarius ............ 240

CArDONAYIUS 6.6... eee ee 244

COTACINUS occ cece eneee 244

erebUS 22... . cece ee eee 240

CPEDUS Lecce cece eee 243

evanidus............ 20, 238

CVANMIAUS. 6. eee cence eee 242

flavicollis .......... 238, 240

—— forreranus.............. 239

fusiformis ............. . 241

hogeanus .......... vee. 237

—— humeralis ...... 0... ccc 237

—— infernus.............. .. 240

isthmianus .......... .. 21

USthMUANUS. . oe eccceccenee 22

—— lateritius............ 21, 239

dateritius 6... cece Paw j

—— letourneuri ........ weee 20

letourneurt .....44. coves. 24

—— luridus.......... wanes 20, 238

370

Page

Plateros luridus....... vevees 242

marginellus ...0.eeeee 22, 23

——— mexicanus .......... 24, 242

— MEXICANUS occ eens 25

—— micheli oo. ec c ee eee 19

nicaraguensis .......... 23

ochraceus .......... 23, 241

ochraceuS .......44. 24, 296

—— parallelus .............. 22

—— parallelus oo... cc cee eeee 28

—— patiens ............ 25, 242

roseicollis .............. 24

—— rubricatus .......... 24, 242

rubricatus.......04. 239, 292

—— seminiger ...........00. 19

SEMINIGED oo. eee eee cees 238

stramineus .......... 25, 248

—— stramineus ............ 245

—— striatus ............ 22, 240

SHIVALUS ok eee 23, 25, 90

terminalis .......... 22, 239

terminalis...... 240, 241, 243

—thoracicus.............. 21

thOracteus ... 6... cece 22

trilinedtus ..... cece eee 237

PLATYNOPTERA .........0-. 188

Platynoptera voc cece ccc eeee 185

duponti .............08. 183

tohnotdes ....... 0. eee 186

—— mexicana .............. 183

PLECTONOTUM ....... 0.00005 306

Plectonotum .....ee cc ees 800, 807

labiale .............00. 307

NUTUM Lecce cc ccneceee 306

PLOCAMOCERA .......... 167, 341

sericella ........ .. 168, 341

PODABRUS..........000 000s 284.

Podabrus occ. ccc cee 78, 89

mexicanus ............ 284

PC@CILOCHROA.......... 145, 337

cyanipennis ............ 145

frontalis.............00e 338

——plumbea .............. 337

EROTACICA oo cece cee neee 338

2:0 6 C 337

Polemtus vecceccvcvvccees 89, 91

POLYCAON.... ee cece ee eens 210

OCXCSUS oe eee e eee eee 210

ODNQUUS. 66. cece cece ees 211

—— plicatus............00.. 211

PUUCAEUS .o cee ccc ceeeees 352

PRIOCERA .....e eee e eee 139, 335

Clavipes..... ee eee 140, 335

Jlavoguttata ..serseeeses 189

—— hypocrita Ce oY 140

— miersana eseoeceseeoes ee 140

INDEX.

. Page

Priocera pustulata ..... . 139, 335

SINNOSA vee cacevevees ».. 189

: Stictica ......... ee. 140, 835

—— trinotata .......... 139, 335

trinotata ....... pea wne . 140

PRIOTOMA sess eeeeecereeees 350

—— brevis ...... coseeeeeee SOL

—— BVOVIS. hc cece 350, 352

~— contracta .......0... eee 351

—— CONEVACLA vi vceccccceces 350

—— quadrimaculata ........ 851 .

—— quadrimaculata.......... 850

—— tenuistriata .... ees eee 3851

LENUISETUALA. .ecececevees 350

PRISTOSCELIS .......... 128, 327

Pristoscelis...... 125, 324, 328, 330

eeneipennis wee eeeeee OBE

-—— femoralis ....... deeeeees 328

fulvipes......... eo eeees 328

fuscus ........ eee eeeee 328

nigro-seneus........ 124, 327

NUGVO~ENEUS vee eececeees 328

—— pubescens ...........008 124

tufipennis .............. 327

—— FUPPENNS Cee ceccccces 828

—— salvini ...... be eeceeeen 124

suturalis ...........0 ee 327

Pseudebeus. cc ccccvcvcvccece 120

Pseudochina serricornis........ 199

PSOG vec ccccccccccccccunees 211

Pterotus oe cc ccccccecees 106, 108

PTILINUS 1... cee cece eee eee 198

aS) 198

CESEACEUS eee ec ees 199

PTINIDE oo. cece eee ee eens 194

PTINIDES 2... cece eee eeeeee 194.

PTINUS ... cece cece eee eens 194.

PHUNUS. occ eens 196

albipunctum ............ 194

brunneus ........00008, 196

Coarctatus ..... ec cece eee 195

FUP ccc nnene Lo eteeee 194

UalicusS .....006 eas eeeee 194

- latefasciatus ............ 194

—— lateralis.............3.. 195

PTORTHODIUS .......... 106, 311

Ptorthodius .......4. a 110

as ee ... 812

—— mandibularis ...... 107, 311

mandibularis ...... 106, 312

—— YAaMOSUS ........6. 107, 312

TAMOSUS 2... cee cececcece 110

PYGtdia cov cvccccvcvcccccees 307

PYRECTOMENA ...ccceeee 50, 269

Page

Pyrectomena angulata.,,..,.. 50

——— discoidea ..........000. 269

—— striatella ..... errr 51, 269

—— vexillaria .............. 50

PYTICERA ..............06.. 183

Pytieera vecceceeee ta nwpesene 185

championi.............. 184

———~ militaris ............., 184

Rhadalus ........., creeeees 123

Rhagonycha oo... 66. eye 0e, 88, 89

Behiwopertha oe eee cc cuaes 217

— pusilla ..... ve ceseuuees 217

SALLHIA.. cc eee cae, Cena 164

Sall@a vee ee, ceeeeee 165

bicolor sence ceeeecens 164

necrobioides.......... .. 164

—rubripennis oo... 66.5, .. 164

1 144, 164

bicolor oo... eee eee 144

COMME. eee cece cece .. 146

—— monticola ..... sececeees 146

—— necrobrordes .... 144, 146, 164

—— rubripennis ..... veeeeee 165

SERRIGER ..........0eccueee 147°

COPE vec ceceecee .. 146, 147

reichel .........cceeeee 147

POUNCE vv ecevscccceccacs 146

SILINI ........ ee eee ceeeee OL

SILIS wee... eee eee .+.. 91, 290

Silis .. 66, 87, 90, 94, 95, 283, 293,

801, 805, 806, 307, 311

—— Pee eee e eae eee. 806

——— albicincta .............. 96

albicincta ...... 300, 301, 802

albicinctus..... cc. cece 96

——amicula............00.. 299

— amteula.... ce eeees 283, 300

——oamnalis ........ cee eeees O04

appendicularis .......... 304

—— appendicularis ....., 295, 805

——ardua .......... paces 298

VAUD ee cee 297, 299

—— ANT UPENNIS 6.6 ee eevee 295

AUTILA Lk ee cece nee 295

——hbasalis ................ 94

- basalts oo... eee teneee 95

~~— cephalotes,....., enseeee 289

—— chalybeipennis ..... sere 800

—— coarctata ......... sees 308

——— combusta ..... teceeecae 293

—-— combusta ...... eeeennee QOL

—— dilacerata..... sence nes 96

—— dilacerata ...... 97, 801, 802

—r— Gistorta....eceenccceee. 95

Page

Silas Uistorta vvecveersveess 96, 97

~—— diversa ....eceeeesaeeee 292

—— eroides....... ceveees 94, 296

—— erythroderes..... cesevee D4

—— erythroderes ..ssecevees » 98

festiva wie cece ee eee eee 301

Pestivd vevcccececcccees 302

fulvipes......... eee eee 295

—— hematodes.......... 93, 294

—— hematodes........ 90, 94, 295

——hilara ..........e eee 306

——— JOCOSA verre cscceeeaes 301

JOCOSA. cee cccveceees 283, 302

—— laticollis ...........0.4. 97

lineata..........000, 95, 296

lineata .....45. 289, 297, 299

lineola ....... cece eee 296

Vineola ...c ese ee veeueee 297

longicornis ............ 303

—— ludicra ..........00000. 302

lycoides ............ 91, 290

lycotdes ..... se. cee 293, 296

melanocephala .......... 294

—— minuscula.............. 305

——_ MINUSCULE Love eev cence 306

—— minuta .............00, 305

—— nigrita...........06. 93, 293

—— mgrita.......... 90, 294, 297

nigroplectrum .......... 300.

—— nodicollis ...... wee ee eee 291

modicollis ..seesveveseuee 298

—— oblita....... ce. eee ee eee 297

oblita ...... 291, 298, 299, 306

—— ocularis .......... 0. eee 293

—— paupercula ............ 299

paupercula .... 297, 298, 300

—— pauxilla..............0. 304

pauxilla.... 299,803, 305, 306

—— plateroides ............ 291

preemorsa ...........00. 93

PT@MOTSA ..vevvvens 97, 290

PUficols .ivsevvveseeee 95

rufifrons ........eeeeee 97

—— salle... .... ee cece eee 303

sepulchralis ............ 294

sepulchralis ....esceeees 293

—— SeITIZeTA .........0000. 292

SEPTUGEVA ve vvcccacvuees 291

sicula........... vee eee 298

torticollis .............. 301

—— transfixa .............. 295

EPANSiLA wescvevveveyss 296

—— varianS .......0.00- 92, 291

varians.. 90,285, 290, 292, 293

VAPIANS, VAY. ...4. veeeee 292

INDEX.

= ‘ Page

| SINOXYLON .... ee eee eee wees 214

Sinorylon veccccscvcacneeees 215

ASPEPUM vv veceevcvevecs 215

bastlare occ ee seenee ... 216

championi.............. 214

— MEXICANUMN vosiveveeens 215

muricatum.......... 214,215

quadrispinosumM..sseseeee 217

SCYUCANS eo cceecenceucaes 215

sextuberculatum ........ 216

SPR@TiCus vivccacccvcvvcuees 197

Stigmatwum vivccvcccceecces 173

SYSTENODERES.......-....65 145

——— AMOENUS.. oer eee eee eee 145

TAphes .cvccsccvccavccvcaee 249

TELEPHORIDE ....... 00000. 65

TELEPHORINI ......-s see ees 78

Telephoroides lineatocollis...... 59

VULUGEY A. ove ccc ceenees 59

TELEPHORUS ........++.. 88, 288

Telephorus.... 78, 81, 82, 83, 84, 89,

290, 293

Bicolor eves cece eee eees 79

—— bilineatus wc. cece eee 87

— cephalotes...........05. 289

COMpPtUS .... se eevee es 90

—— guatemalensis .....6.... 87

—— heereticus .............. 289

lampyroides ........ 89, 288

lampyroides .......e eee 287

-—— mimetus............ 90, 289

——_ ODSCULUS Lec ceccccneves 83

—— PhOtUrinusS. eee ccvveees 288

—~— picticollis...... 79, 83, 84, 287

rugipennis,...........6. 90

TUSLUCUS voc ceacenccaes .. 79

SCTUPEUS vic ccceenveneees 282

UUSTIS ve vec eves ewnceees 82

Tendspts occ ceccccccvvveecces 250

TEROPLAS ..... cece cece e ones 243

Teroplas ...cetecevcscvnvcace 245

fusculus..........ee eee 243

Tethlimmena .iccvsccecvecccee 67

TETRAPRIOCERA .....e.eeee. 218

—— longicornis ............ 218

Se 218

THANASIMUS ....eseeeeee 147, 338

Thanastmus .ivseccceses 148, 165

Pvc cece cece e eens 338

—— dubius ................ 147

formicarius .......45 we. 147

nigviventris ........600. 147

——_ NUDIUS oer eccceceeaes 147

TEPANUUS .vsvavecuveees 340

—— PUICEPS ve ev cenne eevee L47

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Thanasimus (?) subviolaceus .. 148

THAPTOR ...... aeeveees 205, 348

Thaptor ...... ee ae 203, 349, 350

—— oblongus .......... 206, 348

—— pupatus....... Le eeenwes 205

——— PUPAUS ve svnvenee . 206, 348

sharpl .......... eoeeee 348

throscoides ...... whasee 206

THINALMUS ........... . LOL, 309

—— centro-lineatus...... 101, 309

—— pectinicornis........ 101, 309

—— peChiNICOPNIS wo. cciveseee 102

TILLIDES ......... beeeeeees 129

TILLUS wo... cece ee ee eee 129, 332

TUMUS voc vvcccececeveves 162, 333

collaris .........ee eee 332

COUATIS vs. ceseeeseveves 129

AAMICOYNIS. vs seve eee 185

CLONGATUS vecesseuess re. Ooo

—— leucomelas ....1.c000 ... 162

occidentalis ........ o... 129

TUpnus vececscsccvcvcvecuee 197

TOMicus vo. scveccecevees B04, 355

Trichodes ...ccssvaeee .. 148,165

viridifasciatus ..... ..... 146

UUUMS veececscaveeeee . 165

TRICHODESMA ......eeeeeeee 199

Trichodesma vicicccccsescees 194

albina .....ee.eeeeseee LOD

albistolata..........6.. . 200

—— albistolata.............. 201

imperator ........ wees. 199

—— TMEV AbOY vor ivcecccoee . 200

plumbea ..........05. . 201

—— w-album ............. . 200

— W-AIDWN cece cceccuees 201

TYUCOPYNUS vice ccs e cece ceees 207

TRIGONOGENIUS ........ 196, 347

TYUGOnogenwus ss .cecseseveees 197

ATCUALUS . ee. cee e cena 347

NIVCUS 6. . se cece eevee 197

NWVEUS. vee ceccccccceees 347

TRYPHERUS ........ eeecnees 97

Trypherus w.ccecues se etecene 99

forficulinus .......... .. 98

latipennis .....scceeeees 98

Tytthony® occcccevcccccceees 104

Vesta vcs cccscevcccees 29, 32, 263

Ayletinus testaceus..... 6.606 . 199

XYLOGRAPHUS ......0eeeee . 854

Aylographus ...ccveceesseee. 856

bostrichoides ........ 354, 356

GUDUS ie cesacccees oe. OO4

——Aypocrtta veveeessees we. 254