INTRODUCTION.

THE present Volume, the third of this series devoted to the Rhynchophora,

contains the enumeration of the species of four more groups of the subfamily

Curculionine, viz. the Zygopina, ‘Tachygonina, Ceuthorrhynchina, and Barina. The

last-mentioned group, with which are incorporated the Ambatides, Péridinétides, and

Pantotélides of Lacordaire, includes such a large number of forms that it has

been considered advisable to deal with the numerous Cossonids, Calandrids, &c.

in a separate volume.

The Zygopina abound in the forest-regions of Tropical America, but few species

occurring north of Mexico, and the group is wholly wanting in the European fauna.

It is, however, well represented in the warmer parts of the Old World. The Tropical- .

American genus Cratosomus, which includes the largest known members of the group,

is characteristic of the Mexican weevil-fauna. Piazurus, Zygops, Copturus, Lechriops,

&c. are remarkable from their habit of resting motionless in the hot sun on the bark

of felled or decaying trees, after the manner of certain Buprestids, a fact noticed in the

introductory remarks to the group. Nothing appears to have been recorded of the

earlier stages of these insects. .

The Tachygonina are nearly all American, and, like the Zygopina, become more

numerous southward, though the number of known species is small. They are easily

recognizable by their powerful and greatly elongated hind legs, which, however, are

not used for jumping purposes, but for grasping the edges of leaves.

The Ceuthorrhynchina are characteristic of the north temperate portions of both

hemispheres, though much more numerous in species in the Palearctic than in the

Nearctic region. ‘They become very rare southward, doubtless, at any rate in the case

vl INTRODUCTION.

of the Ceuthorrhynchini, owing to the absence of their food-plants (certain Crucifere,

Boraginace, Labiate, Composite, &c.).

The Barina are extraordinarily numerous in genera and species throughout the

greater part of the American continent. Of the eleven groups, however, under which

the Central-American forms are here placed, eight do not extend north of Mexico, the

other three, the Centrinides, Madarides, and Barides, being well represented in the

United States, some genera—Baris s. str. and Onychobaris—becoming more numerous

in species northward, and others—Gerwus and Pseudobaris—increasing southward.

These insects, so far as at present known, attack the stems, nuts, or fruits of various low

plants, shrubs, and trees. Species of the under-mentioned genera have been observed in

connection with plants of the following Natural Orders :—Ceuthorrhynchidius (Papave-

racer), Ambates, Trichobaris, and Lepidobaris (Solanacee), Peridinetus (Piperacese and

Melastomacee), Optatus (Anonacee), Gerwus (Composite, Euphorbiacee, and Poly-

gonacee), Baris and Catapastinus (Composite), Pseudobaris (Labiate), Zygobaris and

Amercedes (Rutacee), Onychobaris (Cactacee), Busckiella (Myrtacez), Orthoris (Loasez),

Nicentrus (Euphorbiacee and Polygonacee), &c. ; but it is probable that in some cases

the insects have simply been attracted by the flowers, especially in the case of those

found upon the Anonacee and Euphorbiacee. The metallic European species of Baris

are mostly attached to Cruciferee or Resedacee, and the type of Limnobaris (L.T-album,

J..)—a genus with numerous representatives in Central America—to Cladium mariscus

(order Cyperacez), a plant also inhabiting the warmer parts of the New World. In

dealing with the three northern sections of the Barina I have found Colonel Casey’s

paper [Ann. N. York Acad. Sci. vi. pp. 461-684 (1892)] of great assistance, so many of

the genera being common to Mexico and the United States. Some of the commoner

and more widely distributed members of this group (e. g. Baris @rea and Pseudobaris

undulata and acutipennis) are so variable that till they are bred it will probably be

found impossible to define them satisfactorily.

We are again indebted to Dr. Yngve Sjéstedt for the loan of the Mexican types of

the species characterized in Schénherr’s work ; to Dr. K. M. Heller for communicating

many types of Kirsch and Faust; and to Signor A. Solari, of Genoa, for lending us

the Barids recently described by him, and also for placing his unworked material at

our disposal, allowing us at the same time to retain for the British Museum the types

of the additional species recorded in this Volume. Thanks to the kindness of the

Director of the Smithsonian Institution, the Mexican and Central-American Barids

INTRODUCTION. Vl

belonging to the United States National Museum have been included in the present

enumeration. To that gentleman also we are indebted for a set of all the N.-American

forms that they had in duplicate, these having been supplemented by many others

kindly supplied by Colonel Casey and Mr. H. F. Wickham. The late Professor P.

Biolley, too, up to within a short time of his death, frequently forwarded to us

interesting Costa Rican forms, often with notes as to food-plants, &c.

The system of publication here adopted, the only one possible by which any rapid

progress could be made and the plates prepared at the same time, has prevented me

from tabulating the genera of such a large group as the Barina; it would, however,

have been of little use, unless the vast number of Tropical South American forms had

been studied also, a task beyond the scope of this work.

Altogether 908 species are enumerated in the present volume (620 of which belong

to the Barina, and 30 only to the Ceuthorrhynchina), 717 of them being treated as

new, with 81 new genera. The twenty-three Plates issued, all of which have been

drawn and lithographed by Mr. E. Wilson, of Cambridge, are wholly or partially

coloured.

G. C. C.

April 1909.

ERRATA ET CORRIGENDA.

Page Line

139 9 for 1906 read 1896. |

139 17 erase the words ‘‘, as in Awleutes.”

139 22 for O. pollinosus and O. dietzi read H. pulvereus and H. dietzi.

152 32 f ;

153 99 } or Ceuthorhynchus read Ceutorhynchus.

160 32 erasé sp. 0.

245 2 for R. read P.

3384 12 for Colothus read Coluthus.

346 27,39 for L. nasutus read L. nasuta.

387 1 for M. read L.

895 7 for Panislahuaca read Panistlahuaca.

467 42 for B. tortilus read B. tortilis.

BIOLOGIA CENTRALI-AMERICANA.

ZOOLOGIA.

Class INSECTA.

Order COLEOPTERA.

Tribe RHYNCHOPHORA.

Fam, CURCULIONIDA (continued).

Subfam. CURCULIONIN& (continued).

Group ZYGOPINA *.

This is one of the larger groups of the Curculionine, and includes a vast number of

Tropical-American forms, but few species occurring north of Mexico. The Zygopina

are, as a rule, easily recognized by their large, exposed, finely facetted eyes, which are

often so large as to occupy almost the whole of the front of the head. An important |

work on the American forms by Dr. K. M. Heller, of the Dresden Museum, was

published in 1895 (Abhandl. Mus. Dresd. no. 11, pp. 1-70, with one plate), and his

arrangement would have been followed here, were it not more convenient, to avoid

delay in publication, to deal with the genera seriatim, irrespective of their inter-

relationship. Cratosomus includes some of the largest, and Psomus some of the

smallest, of the American Rhynchophora. Most of the species are very active and

squirrel-like in their movements. Various members of the genera Zygops, Copturus,

Piazurus, &c. have the habit, as observed by Lacordaire in Cayenne and Brazil, and

by the present writer in Central America, of resting motionless in the sunshine on

the trunks of dead or decaying trees. On the least alarm, however, they run rapidly

round to the other side of the trunk and then drop, only to fly back again before

reaching the ground to the place from which they were disturbed.

* By G. C. Cuampron.

BIOL. CENTR.-AMER., Coleopt. Vol. IV. Pt. 5, April 1906. BB

RHYNCHOPHORA.

CRATOSOMUS.

Cratosomus, Schénherr, Cure. Disp. Meth. p. 278 (1826); Gen. Cure. iv. p. 1; Lacordaire, Gen.

Col. vii. p. 145.

Gorgus, Schénherr, Cure. Disp. Meth. p. 279.

A Tropical-American genus, including many species of large size, a few of which

are peculiar to the region now under investigation: C. punctulatus is a common

insect in Mexico, but the others are all rare or local, with the exception of C. gemmatus.

Some of the South-American forms belonging to Schénherr’s second group have a long

curved spine on each side of the rostrum in the male, in which sex also the pygidium

is more broadly exposed than in the female, whereas in C. punctulatus and other

members of his first group the pygidium is broadly exposed in both sexes. Fresh

examples of certain species, C. pulverulentus, &c., are coated with a mealy secretion,

as in Livus, Larinus, &c.

a. Femora unidentate, the anterior pair sometimes unarmed.

a’. Rostrum short, feebly curved, not dentate at the sides in the ¢; eyes

comparatively small, distant ; femora sharply annulate; pygidium

broadly exposed in both sexes.

a’, Prothorax and elytra sparsely, conspicuously tuberculate ; the pallid

vestiture of the prothorax reduced to two patches at the base and

a line along the anterior margin . . . . . . . . .) . ) .) a@nnulipes, sp. n.

6°. Prothorax not or feebly, and the elytra distinctly *, tuberculate ;

the pallid vestiture of the prothorax separating or surrounding the

usually more or less confluent black spots on the dise . . . . punctulatus, Gyll.

ce’. Prothorax not, and the elytra sparsely, tuberculate ; the prothorax

with a transverse black median fascia, the rest of the vestiture

dense and yellowish. ©. 2 2. 1. 2 2. 1 ws dafontii, Guér.

6‘. Rostrum longer and more curved, sometimes feebly dentate at the

sides in the ¢; eyes very large, subcontiguous or narrowly separated;

femora not annulate; pygidium of the $ broadly, and that of the

narrowly, exposed f.

a’. Prothorax and elytra finely tuberculate . . . 2... . gemmatus, Lec.

e*. Prothorax and elytra with long, stout, conical tubercles, the elytra

bideutate at the apex . 2. 2. we. spicatus, sp. D.

J. Prothorax granulate or punctate ¢.

a’. Elytra with a very large conical tubercle on the third interstice

and another large tubercle at the shoulder.

a’. Prothorax granulate; elytra seriato-foveolate. . . . . augustus, sp. n.

6'. Prothorax punctate; elytra seriate-punctate . . . . ., pulverulentus, sp. n.

* The tubercles few in number in the var. 7.

T The two sexes of C. gemmatus and C. cuneatus only are available for examination.

+ In C. aspersus there is a short tuberculiform carina on the disc,

CRATOSOMUS.

6°. Elytra with scattered flattened tubercles along each alternate

interstice ; prothorax immaculate . . . . . . . . . « aspersus, sp. 0.

ce. Elytra with, at most, an oblong bare prominence on each alternate

interstice below the base ; prothorax spotted . . . . . . cuneatus, sp. 0.

6. Femora bidentate; prothorax with two, and the elytra with many, small

tubercles on the disc, the elytra bidentate at the apex; pygidium (¢)

_ broadly exposed . . 2. ww ew ee ee ew eee ee) Bidens, sp. 0.

1. Cratosomus annulipes, sp. n. (Tab. I. figg. 1, 1a.)

Oblong-ovate, rather broad, black, opaque above (the tubercles excepted), moderately shining beneath ; tho

head between the eyes, the prothorax with the anterior margin, the lower part of the flanks, and a patch

on each side at the base, the scutellum, and the elytra with three broad, more or less connected,

transverse, irregular fascie, the anterior one connected with an oblique humeral streak, thickly clothed

with yellowish- or fulvo-cinereous, piliform scales, the rest of the upper surface black ; the under surface,

femora, and tibie rather sparsely clothed with narrow yellowish-cinereous scales, the femora conspicuously

annulate near the tip, the tarsi thickly clothed above with similarly-coloured hairs. Head finely

punctate, broadly sulcate between the somewhat widely separated eyes, the groove extending upwards

on to the vertex; rostrum almost straight, broad, flattened, rugulosely punctate and subcarinate, smooth

at the tip. Prothorax transverse, rapidly narrowed from the middle; closely, minutely punctate, the

disc broadly depressed in the centre, shortly carinate, and with several scattered, smooth, rounded

tubercles. Elytra much wider than the prothorax, narrowing from a little below the base, the humeri

swollen, the apices obtuse; finely punctate-striate, the interstices minutely punctate, flat, 1, 3, 5, and 7

with scattered, smooth, rounded, subconical tubercles, the one near the base of 3 larger than the others.

Beneath closely, finely punctate; ventral segment 1 broadly depressed down the middle in the ¢.

Pygidium broadly exposed beneath in both sexes, with a short longitudinal carina at the tip. Femora

clavate, each with a short tooth.

Length 20-22, breadth 9-10 millim. (¢ 2.)

Hab. Costa Rica (Van Patten), Miravalles (Underwood), Azahar de Cartago (Biolley) ;

Panama, Chiriqui (T7rétsch).

Five specimens. A close ally of the very variable C. punctulatus, but with fewer

and much more conspicuous tubercles on the elytra; the prothorax with several

scattered tubercles on the disc, the pallid vestiture of its upper surface reduced to two

patches at the base and a line along the apical margin.

2. Cratosomus punctulatus. (Tab. I. figg. 2, 2a; 3-7, vars.)

Cratosomus punctulatus, Gyll. in Schénh. Gen. Cure. iv. p. 6*; vill. 1, p. 294°.

Cratosomus mexicanus, Gyll. loc. cit. p. 5°.

Cratosomus pustulatus, Gyll. loc. cit. p. 7 *.

Cratosomus nodieri, Gyll. loc. cit. p. 8°.

Hab. Mexico1? (ea coll. Sturm?4; Truqui; Mus. Brit.), Alamos in Chihuahua

(Buchan-Hepburn), Ciudad in Durango (Forrer), Durango (ex coll. Flohr), Guadalajara,

Tacambaro, Jalapa (/ége), Mochitlan (Baron), Matamoros Izucar, Cuernavaca (Sallé,

Hoge), Chilpancingo (Hoge, H. H. Smith), Rincon, Amoquileca, Amula, and Tierra

Colorada in Guerrero (H. H. Smith), Guanajuato, Mirador, Capulalpam, Parada,

Juquila, Etla, Oaxaca (Sallé), Valladolid (Mus. Brit.), between Oaxaca and Acapulco °;

BB 2

4 RHYNCHOPHORA.

British Honpuras* (H. A. Wickham, Mus. Brit.); Nicaragua, Chontales (Belt,

Janson).—CoLoMBIA ; VENEZUELA; TrinipaD (Mus. Brit.) ; Eouapor.

This very variable species (of which I have seen about 100 examples) is a common

insect in Mexico, ranging as far north as Chihuahua and extending southward to

Trinidad and Ecuador. Schénherr, in his later work 2, selected the name C. punctulatus

for it, sinking C. meawicanus and C. pustulatus as varieties, and to these must also be

added C. nodieri and other Mexican forms. They are all connected by intermediate

examples and may be roughly defined thus :—

a. The prothoracic spots usually more or less coalescent; the elytra nigro-bifasciate, the tubercles large and

somewhat closely placed. (Fig. 2.)

Cratosomus punctulatus, Gyll. loc. cit.

Cratosomus glandulosus, Chevr. in litt.

Mexico, widely distributed and apparently the commonest form there; Colombia.

3. The prothorax with ten or twelve separate spots; the elytra at most irregularly nigro-fasciate at the

middle, the tubercles large. (Fig. 3.)

Cratosomus punctulatus, var. 8. mexicanus, Schonh. loc. cit.

Cratosomus subfasciatus, Chevr. in litt.

Mexico (Vera Cruz, Guerrero, Oaxaca), British Honduras, Nicaragua, Trinidad,

Venezuela, Ecuador.

y. The prothorax usually more rounded at the sides, and often with a few tubercles on the disc, the spots

more or less confluent ; the elytra nigro-bifasciate, with the whitish vestiture reduced to a network of

transverse confluent spots, the tubercles large. (Fig. 4.)

Cratosomus punctulatus, var. y. pustulatus, Schonh. loc. cit.

Cratosomus sallei and rotundicolits, Chevr. in litt.

Mexico—Vera Cruz, Morelos, Guerrero, Oaxaca.

6. The spots on the prothorax not quite confluent, separated by a network of whitish lines; the elytra as

in y. (Fig. 5.)

Cratosomus nodieri, Gyll., Schonh.

Cratosomus mestus, Jekel, in litt.

Mexico—between Acapulco and Oaxaca.

e. The prothorax with from 10-12 spots, the basal two sometimes united, as well as the three on the

flanks ; the elytra as in a, but with broader black fascie. (Fig. 6.)

Cratosomus - -maculatus, Chevr. in litt.

Mexico—Durango, Vera Cruz, Oaxaca (three examples) f.

g. The prothoracic spots confluent; the elytra as in e.

Cratosomus corectus, Chevr. in litt.

Mexico—Oaxaca (two examples).

* This specimen is labelled Temash R., Brit. Honduras ; perhaps in mistake for Temax, Yucatan ?

y+ There is an example of this form in the British Museum labelled “Brazil,” but there must be some

mistake about this locality.

CRATOSOMUS. 5D.

y. The prothorax with three or four spo‘s (one or two on the disc at the base and one on each flank); the

elytra sharply nigro-bifasciate, the rest of their surface with a dense, white or yellowish vestiture, the

tubercles small and few in number. (Fig. 7.)

Mexico—Chihuahua and Durango (four examples).

The pygidium is broadly exposed beneath in both sexes, which are scarcely

distinguishable by external characters, though the rostrum in some of the larger males

is carinate to near the tip. The femora are always cinereo-annulate towards the apex ;

the anterior pair are sometimes unarmed. The length varies from 13-23 and the

breadth from 54-11 millimetres. The three specimens (of the var. (3) from Trinidad,

in the British Museum, appear to have been found in the Botanic Gardens there, and

they may have been introduced in some way from Mexico.

3, Cratosomus lafontii. (Tab. I. fig. 8.)

Cratosomus lafontii, Guér. Icon. Régne Anim., Ins. p. 163°.

Hah. Panama (Conradt).—CotomBia!; Braziu.

We have a single specimen of this insect supposed to have been taken at Panama,

agreeing with another from Colombia in our collection. It is easily recognized by its

dense yellowish vestiture and sparsely tuberculate elytra; the prothorax with a broad,

transverse, black median fascia (interrupted at the middle in the two examples before

me), the elytral tubercles (that near the base of the third interstice and the one

on the shoulder larger than the rest) almost bare. The rostrum is broad, flattened,

and almost straight, finely punctate and obsoletely carinate in its basal half. The eyes

are widely separated and the interocular space flattened. The pygidium is large and

broadly exposed beneath. The femora are conspicuously annulate near the tip.

4, Cratosomus gemmatus. (Tab. I. figg. 9, 9a-c, ¢; 10, 2.)

Cratosomus gemmatus, Lec. Proc. Acad. Phil. 1858, p. 79°.

Hab. Mexico, Tampico in Tamaulipas (Haldeman'), Juquila (Sadlé), Amatan in

Chiapas (Flohr); GuareMaa, Panima in Vera Paz (Champion); Nicaragua, Chontales

(Belt, Janson); Panama, Bugaba (Champion), Chiriqui (7rétsch):

Of this species, described from a single specimen from N.E. Mexico, we have

received eleven examples, including both sexes. It is the only Central-American

Cratosomus with the disc of the prothorax and each of the elytral interstices studded

with small shining tubercles, which, however, are sometimes much reduced in number

on the prothorax. The eyes are very large, narrowly separated or subcontiguous. ‘The

rostrum is rather long and arcuate, widened, depressed, and carinate at the base, and

sometimes feebly dentate at the sides in the male. The pygidium of the male is

broadly, and that of the female narrowly, exposed beneath. The sculpture of the

6 RHYNCHOPHORA.

under surface is variable. Fresh specimens have a broad, transverse, subquadrate

patch at the base of the prothorax, and a large patch on the shoulders of the elytra

clothed with cinereous scales.

5, Cratosomus spicatus, sp.n. (Tab. IL. figg. 11, 114.) |

Subovate, black, the head and prothorax (the tubercles excepted) opaque, the rest of the surface shining ;

sparsely clothed with minute or small, flavo-cinereous, piliform scales, which are partly hidden by a

- fulvous mealy secretion. Head minutely punctate, sulcate down the middle in front, the eyes very large

and subcontiguous; rostrum very stout, arcuate, reaching the metasternum, depressed at the sides

towards the base, sparsely, finely punctate, smooth at the tip. Prothorax transverse, abruptly narrowed

_and feebly constricted in front; sparsely, minutely punctate, with three stout, erect, conical tubercles

placed in a transverse series across the middle of the disc, and a cluster of four stout tubercles in a line

with them on each lateral margin. Elytra much wider than the prothorax, rather long, subtriangular,

bidentate at the apex; rather coarsely seriate-punctate, the punctures becoming much finer towards the

tip, the interstices 3, 5, and 7 each with from 2-4 widely separated, very stout, long, conical tubercles,

8 with a single similar tubercle at the shoulder, and 10 with a row of four smaller tubercles below the

base. Beneath sparsely, very finely punctate; fifth ventral segment foveate in the middle. Pygidium

arcuate and narrowly exposed beneath. Femora clavate, the anterior pair feebly, the others sharply,

unidentate.

Length 244, breadth 124 millim. ( 9.)

Hab. Costa Rica, Azahar de Cartago (Underwood).

’ ov \

‘One specimen. Near the S.-American C. taurus, C. vaginalis, and C. varicosus, but

different from them in having the very long, conical tubercles on the elytra widely

scattered over the surface (two on the shoulder and seven on the disc of each elytron),

and the prothorax with three large conical tubercles on the disc and a cluster of four

others on each side. The apices of the elytra are each produced into a long stout tooth.

6. Cratosomus augustus, sp.n. (Tab. Il. figg. 1, 1 a.)

Oblong-ovate, black, shining ; above sparsely clothed with small reddish-brown and fulvo-cinereous scales,

which are condensed into transverse fascie: on both the prothorax and the elytra (two on the pro-

thorax—one at the apex and the other behind the mlddle—and three on the elytra—one before, and

another beyond, the middle, and one near the apex); the vestiture of the under surface very scattered.

iHead closely punctate, carinate between the rather narrowly separated eyes; rostrum very stout,

arcuate, rugulosely punctate at the base. Prothorax transverse, rounded at the sides, constricted and

much narrowed in front, and also narrowed behind; minutely punctate and sparsely granulate, the

granules becoming stouter and tuberculiform at the sides before the middle, the disc with a short median

carina. Elytra considerably wider than the prothorax, moderately elongate ; seriato-foveolate, the

’ gquamose transverse spaces depressed and with smaller punctures, the third interstice with a very large

smooth tubercle near the base, and the shoulders also with a large laterally projecting tubercle, the

apices obtusely dentate. Fifth ventral segment broadly sulcate down the middle. Pygidium rather

broadly exposed beneath. Femora clavate, unidentate.

Length 173, breadth 73 millim. (d.)

Hab. Panama, Chiriqui (Zrétsch).

One specimen, obtained from the dealer H. Rolle of Berlin, under the MS. name of

C. augustus, Faust. A close ally of C. pulverulentus, but narrower and more oblong in

CRATOSOMUS. 7

shape, the prothorax and elytra fasciate, the prothorax narrowed behind and granulate

on the disc, the elytra interruptedly seriato-foveolate.

7. Cratosomus pulverulentus, sp. n. (Tab. I. figg. 12, 12a.)

Subovate, shining, black ; sparsely clothed with minute or small, cinereous, piliform scales, which are partly

hidden by a somewhat dense, ferruginous, mealy secretion. Head closely punctate, carinate between the

large, rather narrowly separated eyes, the vertex shallowly sulcate; rostrum very stout, strongly arcuate,

depressed at the sides towards the base, rugulosely punctate, becoming much smoother beyond the middle.

Prothorax transverse, constricted and much narrowed in front, the sides arcuately converging from the

middle; densely, minutely punctate, except along a smooth narrow median line, without trace of

tubercles. LElytra moderately long, subtriangular, much wider than the prothorax; rather coarsely

seriate-punctate, the interstices closely, minutely punctate, 3 with an exceedingly large, smooth, conical

tubercle below the base, 8 with a large, outwardly-directed, conical tubercle at the shoulder, and 9 with

a smaller tubercle below it, the disc transversely swollen and a little smoother across the middle and less

distinctly so towards the apex, the apices slightly swollen. Beneath very shining, finely punctate ;

ventral segments 1 and 5 deeply suleate down the middle. Pygidium rather broadly exposed beneath.

Femora clavate, unidentate.

Length 21, breadth 9 millim. (<.)

Hab. Panama, Bugaba (Champion), Chiriqui (Zrétsch).

Two males, one with the rusty-red mealy secretion almost covering the depressed

portions of the elytral surface. The tubercle below the base of the third elytral

interstice is very large, and the outwardly-directed conical tubercle at the shoulder

is also large and prominent. C. pulverulentus approaches the S.-American

C. varicosus.

8. Cratosomus aspersus, sp. n. (Tab. I. fige. 13, 13 a.)

Elliptic, black, thickly clothed with small, piliform, fulvo-cinereous scales, the tubercles bare. Head closely,

very finely punctate, sulcate between the very large, narrowly separated eyes; rostrum arcuate, depressed

and closely punctate at the base. Prothorax transverse, rapidly narrowed from the middle forwards ;

dull, closely, minutely punctate, with a small, oblong, shining tubercle on the disc towards the

apex. Elytra much wider than the prothorax, rather long, subtriangular, obtusely bidentate at the

tip, the humeri prominent ; somewhat deeply striate, the strize with oblong, subquadrate, moderately

coarse, approximate punctures, the interstices closely, minutely punctate, 1, 3, 5, and 7 with numerous,

and the others with one or more, large, flattened, smooth, scattered tubercles. Beneath shining, very

finely punctate; ventral segment 5 depressed down the middle. Pygidium arcuate and narrowly

exposed beneath. Jemora clavate, each with a short tooth. Intermediate and posterior tibise strongly

sinuate.

Length 244, breadth 102? millim. (9.)

Hab, Panama, Chiriqui (Trétsch).

One example. Near the Brazilian C. 60s, Gyll., but with the elytral tubercles more

numerous and smaller and the apical teeth shorter. There is a specimen from Ibague,

Colombia, in the British Museum, that probably belongs to the same species: it has

the vestiture yellower and on the prothorax condensed into a broad, transverse, inter-

rupted, subquadrate patch at the base. .

8 RHYNCHOPHORA.

9. Cratosomus cuneatus, sp.n. (Tab. I. figg. 14, 14a; 15, var.)

Elongate-rhomboidal, shining, black; thickly clothed above with small, piliform, cinereous scales, the

prothorax with two large spots on the disc and another on each flank, and the elytra with the shoulders

and various irregular spots and sinuous transverse streaks, black ; the vestiture of the femora, tibiee, and

under surface very sparse and fine. Head finely punctate, broadly sulcate between the somewhat widely

separated eyes, the groove extending upwards on to the vertex; rostrum strongly arcuate, flattened,

finely punctate, and subcarinate towards the base, the antenne inserted at about the middle. Prothorax |

subconical, a little broader than long, slightly constricted in front; densely, minutely punctate, obsoletely

carinate anteriorly. Elytra much wider than the prothorax, elongate-triangular, conjointly rounded at

the apex ; coarsely punctate-striate, the interstices minutely punctate, somewhat convex, flat at the tip.

Beneath very finely punctate; ventral segment 5 foveate in the 9, and with a deep transverse depression

in the g. Pygidium of the ¢ broadly, that of the Q narrowly, exposed beneath. Femora clavate, each

with a short tooth. .

Prothorax with two black spots on each flank, the dorsal spots a little smaller; the elytra, except

towards the apex, with the black partly denuded spaces more elongate and slightly raised, clustered into

two irregular transverse fasciee (one at, and the other before, the middle), the interstices 3 and 5 each

with an oblong bare prominence below the base. (Fig. 15.)

Length 17-19, breadth 7-8 millim. (¢ 2.)

Var.

Hab. Guatemata, Cerro Zunil (Champion); Costa Rica, Azahar de Cartago (Under-

wood).

A pair from Guatemala and a female from Costa Rica, the latter belonging to the

varietal form. This insect may be recognized by its rather narrow, elongate-rhomboidal

form, the irregular black patches on the elytra, the strongly curved rostrum, &c. There

are no definite tubercles on either the prothorax or the elytra, though the alternate

interstices of the latter are sometimes raised below the base.

10. Cratosomus bidens, sp. n. (Tab. I. figg. 16, 16a; 168, anterior leg.)

Subovate, black, opaque above, slightly shining beneath; the head, the prothorax with the base, a small spot

on the flanks, and an oblong patch near each hind angle, the scutellum, and the elytra with a transverse

humeral patch (extending inwards to the scutellum), thickly clothed with narrow, piliform, cinereous

scales ; the rest of the upper surface with scattered minute scales, the vestiture of the legs and under

surface closer, longer, and cinereous. Head closely, minutely punctate, the eyes very large and

subcontiguous ; rostrum arcuate, finely punctate, becoming much smoother towards the tip. Prothorax

transverse, flattened on the disc posteriorly, much narrowed in front; closely, minutely punctate, the

disc with a small tubercle on each side at about the middle. Elytra moderately long, subtriangular,

bidentate at the apex; punctate-striate (the punctures coarse, deep, and oblong, smaller at the base and

towards the apex), the dorsal interstices with scattered smooth conical tubercles, which are most numerous

on | and 3, the shoulders also tuberculate beneath. Beneath finely punctate; ventral segment 5 depressed

down the middle posteriorly. Pygidium broadly exposed beneath. Femora bidentate, the teeth distant

one from another, the inner tooth on the intermediate and posterior pairs rather large. Tibie strongly

sinuate.

Length 233, breadth 114 millim. (<¢.)

Hab, Panama, Chiriqui (Zrétsch).

One specimen, assumed to be a male. Near C. dejeani, Gyll. (= bombina, Oliv.,

Herbst), but with the femora bidentate, the elytral tubercles almost confined to the

dorsal region (inconspicuous on the shoulders and more numerous along the suture),

CRATOSOMUS.—PIAZURUS. 9

the seriate punctures oblong, &c. The smoother prothorax, &c., distinguish it from

C. gemmatus. No species with bidentate femora is mentioned in Schénherr’s work.

PIAZURUS.

Zygops, subgen. Piazorus, Schénherr, Cure. Disp. Meth. p. 303 (1826).

Piazurus, Schénherr, Gen. Cure. iv. p. 651 (1837) ; Lacordaire, Gen. Col. vii. p. 147; Heller,

Abhandl. Mus. Dresden, no. 11, pp. 3, 4 (1895); Stett. ent. Zeit. 1906, pp. 31, 32

(nec Leconte).

A Tropical-American genus including numerous species*, mostly of large size,

several of which are abundant within our region. They are elliptic, rhomboidal, or

subovate in shape, and have the femora clavate—the posterior pair very stout and

armed with a large triangular tooth, the others usually with a small tooth,—the eyes

large, oval, and contiguous or narrowly separated, the second joint of the funiculus,

and usually the third also, elongate, the mesosternum excavate and rather long, and

the pygidium narrowly exposed. The fifth ventral segment is more or less rounded

at the apex in the female, and sinuato-truncate or emarginate in the male. The

Central-American species, for some of which Dr. Heller has proposed two subgenera,

may be tabulated thus :—

A. Ventral segments distinctly ascending, 2 at the sides about as long

as 8 and 4: united; all the femora toothed. Posterior tibize mucro-

nate or not at the inner apical angle. [Prazurvs, s. str.]

a. Joint 2 of the funiculus as long as, or one-half longer than, 3 ;

prothorax conical or subconical.

a’, Elytra emarginate or truncate at the apex.

a’, Prothorax trifoveate on the disc.

a’. Elytra with a sharply-defined, saddle-shaped, black median

fascia, the prominences obsolete . . . . . . « + « érifoveatus, sp. n.

6°. Elytra with a common, irregular, cinereous patch occupying

the depressed space on the disc, the prominences black and

conspicuous. . . « . © + + 1 ee ew ew ee 6 plagiatus, sp. n.

6°, Prothorax without depressions on the disc.

c’. Elytra with a very large conical tubercle near the base of

the third interstice ; prothorax with a broad arcuate band,

and the elytra with a common saddle-shaped patch or

fascia, black. . 2 0. we ee ee ee ee Caprimulgus, Oliv.

da’. Elytra with a smaller prominence or tubercle at or near the

base of the third interstice.

a‘. Prothorax and elytra with numerous small ochreous

spots. . . ee we ee ee ew ee ee Spretus, Heller.

* It is probable that a number of those described by Boheman will have to be sunk, to judge from the

great variability of P. maculipes.

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, Aprad 1906. CC

10 ; RHYNCHOPHORA.

b‘. Prothorax and elytra with a few small ochreous or whitish

spots 2. ew ee ee ew ee ee ee helleri, sp. 1.

e’. Elytra with the third interstice usually more or less swollen

or widened at the base and middle, the basal prominence

often tuberculiform, the transverse depression conspicuous.

c‘. Prothorax and elytra variegate, the raised or widened

portions of the third elytral interstice black or brown.

° ° S ] netured and

a’. Ventral segments almost uniformly pu succivus, Boh.

[notabilis, Boh.].

squamose, with coarser whitish scales intermixed .

6’. Ventral segments with a broad, smoother, almost bare

space down the middle, the lateral portions densely,

uniformly squamose.

° i th

a’. Prothorax and elytra feebly sinuate at the base, the ; maculipes, Gy.

"'U [saginatus, Boh.].

elytral prominences sometimes wanting

b°. Prothorax and elytra strongly sinuate at the base,

the basal prominence on the third elytral interstice

large and oblong. . . . . ciliatus, Germ.

d’. Prothorax with the sides broadly pale, the elytra with a

post-median, cinereous fascia preceded by a transverse :

velvety-black patch. . . 2. 2... 1. 1 1)... pallidicinctus, sp. n.

f°. Elytra flattened on the disc, the third interstice without

prominences ; prothorax and elytra with a few scattered

yellow spots. . . 2... . . we we ee.) «8ulphuriventris, Heller.

6’. Elytra rounded at the apex.

c’, Elytra shorter, rounded-triangular, with a very large, common,

rounded, velvety-black patch on the disc . . . . . . .~ stigmaticus, sp. n.

d*, Hlytra longer, subtriangular, each with an oblong velvety-

black patch on the disc, - Preceded and followed by a small

whitish spot... Soe ee ee ee we we) melanostictus, Boh.

. Joint 2 of the funiculus twice as long as 3; elytra variegate,

obtuse at the apex; prothorax rounded at the sides; elytra

rounded-triangular, the alternate interstices raised, not granulate. alternans, Kirsch.

3. Ventral segments not or slightly ascending, 2 at the sides shorter

than 3 and 4 united.

a. Posterior tibia mucronate at the inner apical angle.

a’. All the femora toothed; the first ventral suture almost

straight. [Subgen. Psruvporinarus, Heller. ]

a’. Jot 2 of the funiculus twice as long as 8; prothorax with

the sides parallel behind; elytra subtriangular, the inter-

stices with setigerous granules, 3 strongly binodose ; first

ventral segment without curved groove . . . . . . . condyliatus, Boh.

b°. Joint 2 of the funiculus nearly three times as long as 3;

prothorax subconical, with a large prominence on the middle

of the disc; elytra subquadrate, granulate and nodose; first

ventral segment with a shallow arcuate groove » . « rana, Heller

PIAZURUS. 11

b'. Anterior femora unarmed; joints 2 and 8 of the funiculus

subequal in length; prothorax very short, with the sides

parallel behind; elytra subquadrate, nodose and granulate,

the transverse depression deep, the apices rounded; first ventral

segment deeply grooved on each side between the cox, the

first suture strongly arcuate ; posterior legs very stout . . . guadratus, sp. n.

6. Posterior tibiz sharply mucronate on the inner edge before the

apex ; posterior femora only dentate ; prothorax conical; elytra

with the interstices narrow, seriato-granulate, the apices emar-

ginate ; joint 2 of the funiculus about twice as long as 8 ; first

ventral segment with a deep N-shaped groove. [Subgen. Psrupo- [ Heller.

prazunus, Heller (part.).} . 2. 2... 2. 1 ewe ee centrali-americanus,

1. Piazurus trifoveatus, sp. n. (Tab. I. fig. 17.)

Subrhomboidal, black, the antenne obscure ferruginous; the vestiture of the prothorax and elytra fulvous or

brown, slightly mottled with cinereous, that of the head, scutellum, under surface, and legs almost

entirely cinereous ; the prothorax with two spots at the base, some markings along the middle of the

disc, and an oblique marginal vitta, and the elytra with a more or less excised, broad, median fascia

(extending upward to the shoulders and downward along the suture), a large patch at the sides

posteriorly, and some irregular markings around the scutellum, velvety-black, the median fascia some-

times preceded by several white spots, the femora subannulate. Head densely, minutely punctate, the

eyes subcontiguous ; rostrum densely punctate and carinate at the base, and smooth thence to the tip ;

joint 2 of the funiculus about one-half longer than 3. Prothorax transverse, subconical, with two large

shallow depressions on the middle of the disc and one in the centre in front; densely, minutely punctate

and also carinate. Elytra very much wider than the prothorax, rounded-triangular, transversely

depressed below the base, the humeri swollen, the apices sharp, obliquely truncated ; punctate-striate,

the seriate punctures rather coarse on the basal half, the interstices minutely punctate, almost flat on

the disc. Beneath closely, finely punctate; ventral segment 1 broadly depressed down the middle in

both sexes, 5 sinuato-truncate, and also feebly foveate, at the apex in the 3.

Var. The black markings on the prothorax almost obsolete, the depressions indistinct.

Length 94-128, breadth 43-64 millim. (¢ 9.)

Hab, Costa Rica, Savanillas de Pirris (Underwood); Panama, Bugaba, Volcan de

Chiriqui (Champion).

Eleven specimens, all but one from Chiriqui, and one only with the depressions on

the prothorax indistinct. This insect has the elytra marked as in P. caprimulgus,

and the prothorax shallowly trifoveate as in P. plagiatus. ‘The elytra are without

tubercles on the disc. The Costa Rican example is figured.

2. Piazurus plagiatus, sp. n. (Tab. I. fig. 18.)

Piazurus plagiatus, Chevr. in litt.

Piazurus triangulum, Jekel, in litt.

Subrhomboidal, black or piceous, the antenne and the tips of the tarsi obscure ferruginous ; variegated above

with minute fulvous, cinereous, and black scales—the cinereous scales usually condensed into a large,

interrupted, transverse patch on the depressed portion of the disc of the elytra and various scattered

spots or streaks, the black scales also condensed into spots and streaks (especially around the cinereous

dorsal patch, behind which there is always a spot on the swollen portion of the third interstice), and

sometimes into a marginal vitta on the prothorax ; the under surface also variegate with cinereous (or

CC2

12 RHUYNCHOPHORA.

white), fulvous, and dark brown, the whitish scales often condensed into rows of spots; the legs

cinereous, the femora fusco-annulate. Head densely, minutely punctate, the eyes subcontiguous ;

rostrum closely punctate and carinate at the base, almost smooth in its outer half; joint 2 of the

funiculus considerably longer than 3. Prothorax transverse, subconical, with two large shallow

depressions on the middle of the disc and one in the centre in front; densely, minutely punctate and

feebly carinate. Elytra very much wider than the prothorax, rounded-triangular, broadly transversely

depressed below the base, the humeri swollen, the apices each produced into a blunt triangular tooth ;

punctate-striate, the punctures rather coarse on the basal half, the third and fourth striz strongly sinuate,

the interstices densely, minutely punctate, 3 swollen and dilated at the middle. Beneath closely, finely

punctate; ventral segment 1 broadly depressed down the middle, 5 sinuato-truncate at the apex in

the g.

Length 83-113, breadth 44-6), millim. (¢ 2.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé), Cerro de Plumas (Hége), Teapa

(H. H. Smith); Guatemaua, Panzos and Panima in Vera Paz, San Isidro, Cerro Zunil,

Las Mercedes (Champion); Nicaragua, Chontales (Belt, Janson); Costa Rica, San

José (Liolley).

This insect is distributed in collections under Chevrolat’s MS. name. It varies

greatly in the colour of the vestiture, the cinereous scales being sometimes mainly

condensed into a large patch on the disc of the elytra, and sometimes into numerous

spots or streaks. From P. trifoveatus, the only other Central-American form with a

trifoveate prothorax, the present species may be separated by the non-fasciate elytra

and the oblong prominence on the third interstice.

3. Piazurus caprimulgus. (Tab. I. figg. 19,19 a@; 20, 21, vars.)

Rhynchenus caprimulgus, Oliv. Ent. v. no. 83, p. 177, t. 17. fig. 209°.

Piazurus caprimulgus, Schonh. Gen. Cure. iv. p. 679°; Heller, Stett. ent. Zeit. 1906, p. 33°.

Hab, Muxico, ‘Toxpam and Santecomapan in Vera Cruz (Sallé) ; British Honpuras

(Blancaneaux) ; Nicaragua (Sallé), Chontales (Belt, Janson, Richardson) ; Costa Rica,

Reventazon, Santa Clara (Liolley), Miravalles (Underwood); Panama, Bugaba, Volcan

de Chiriqui (Champion).—Co.LomBia; GUIANA, Cayenne ?; AMAZONS.

Found in abundance at Bugaba and in some numbers at Chontales. Three forms

occur in Central America :—

a. The prothorax and elytra with small scattered white spots, those on the elytra mostly placed along the

edges of the black markings. (Fig. 19.)

Costa Rica (Miravalles), Panama, and 8. America.

6. The black saddle-shaped patch on the elytra larger and extending up the suture to near the base, the white

spots behind it larger and more or less coalescent, those on its anterior edge very small and inconspicuous.

(Fig. 20.)

Mexico and British Honduras.

y. The black saddle-shaped patch on the elytra less indented along its anterior and posterior edges, the white

spots almost obsolete and altogether wanting on the prothorax. (Fig. 21.)

Piazurus transversus, Faust, in litt.

Nicaragua and Costa Rica (Reventazon, Santa Clara),

P. caprimulgus is easily recognizable by the very large conical tubercle near the base

PLIAZURUS. 13

of the third elytral interstice, the broad, transverse, arcuate, black fascia on the

prothorax, and the saddle-shaped black fascia below the middle of the elytra, the

outer portion of this latter usually extending forward to the shoulder. The apex of

each elytron is produced into a rather long tooth, the intervening space being truncate.

The second joint of the funiculus is a little longer than the third. The length varies

from 83-14 millimetres. The var. y appears to be distributed in collections under

the MS. name P. ¢ransversus, Faust.

4, Piazurus spretus, (Tab. I. fig. 22.)

Piazurus spretus, Heller, Stett. ent. Zeit. 1906, pp. 33, 39’.

Subrhomboidal, black, the antenne and the tips of the tarsi ferruginous ; the head with an ochreous line

around the eyes, and the prothorax and elytra with numerous small, similarly-coloured spots, the rest of

the vestiture of the upper surface uniformly dark brown, that of the under surface and legs close and

cinereous, the femora faintly annulate. Head densely, minutely punctate, the eyes subcontiguous ;

rostrum densely punctate and carinate at the base, and almost smooth thence to the tip; joint 2 of the

funiculus a little longer than 3. Prothorax strongly transverse, subconical, constricted in front, deeply

sinuate at the base; densely, minutely punctate and sometimes obsoletely carinate. Elytra very much

wider than the prothorax, rounded-triangular, the humeri swollen, but not prominent, the apices rather

sharp, obliquely truncated ; punctate-striate, the interstices minutely punctate, more or less convex,

except at the tip, 3 with an oblong prominence at the base. Beneath closely, very finely punctate, the

depressed space down the middle of the first ventral segment smoother, the fifth segment slightly sinuate

at the apex in the ¢.

Length 93-123, breadth 44-64 millim. (¢ 9.)

Hab. %Guatemata (Mus. Brit.); Nicaragua (Sallé'), Chontales (Belt, Janson,

Richardson).

We have received eleven specimens of this species from Nicaragua. It may be

easily recognized by the numerous small ochreous spots on the upper surface, and the

rather convex elytral interstices, the third with a conspicuous prominence at the base ;

the elytral spots are mostly divided by the strie.

5. Piazurus heileri, sp. n. (Tab. I. figg. 23, 23 a.)

Subrhomboidal, black, the antenne and the tips of the tarsi ferruginous; the head with a line around the

eyes, and the prothorax and elytra with various small scattered spots, cinereous or ochreous, the rest of

the vestiture of the upper surface uniformly dark brown, that of the under surface (a broad almost

smooth space down the middle excepted) and legs close, cinereous or flavo-cinereous, the femora fusco-

annulate. Head densely, minutely punctate, the eyes subcontiguous; rostrum carinate and closely

punctate at the base, and almost smooth thence to the tip; joint 2 of the funiculus considerably longer

than 3. Prothorax transverse, conical, feebly constricted in front; densely, minutely punctate. Elytra

very much wider than the prothorax, rounded-triangular, transversely depressed below the base, the

humeri swollen, the apices rather sharp, obliquely truncated; finely striate, the striz with scattered

punctures, the dorsal interstices flat, 3 with a large conical tubercle below the base. Beneath closely,

finely punctate, smoother and almost bare down the middle; ventral segment 1 broadly sulcate, 5 sinuato-

truncate at the apex in the ¢.

Length 10-12, breadth 53-63 millim. (¢ 2.)

Hab. GUATEMALA, Panzos in the Polochic Valley (Champion) ; Nicaragua, Chontales

(Belt, Janson).

14 RHYNCHOPHORA.

Six specimens. Near P. sulphuriventris, but with a large conical tubercle on the

third elytral interstice below the base, as in P. caprimulgus ; the spots on the upper

surface more numerous and mostly smaller, those on the prothorax clustered into two

transverse series across the middle of the disc. The elytral tubercles are more distant

from the base than in P. spretus and conical in shape. The Guatemalan example is

figured.

6. Piazurus succivus. (Tab. I. fig. 24.)

Piazurus succivus, Boh. in Schénh. Gen. Cure. iv. p. 670°.

Piazurus notabilis, Boh. op. cit. viii. 2, p. 453°.

Piazurus guttatus, Chevy. in litt. ’.

Hab. Mexico! (ea coll. Sturm; Mus. Brit.), Misantla, Cerro de Plumas (Hoge),

‘Toxpam, Juquila, Yolotepec, Oaxaca, Chiapas (Sallé), Omilteme and Amula in

Guerrero (H. H. Smith), Villa Alta in Oaxaca (Sommer); GuatemaLa, Capetillo,

Purula, San Gerénimo, Cerro Zunil (Champion).

‘This species (the worn type of which I have seen) is so closely related to P. maculipes

that it can only be separated therefrom by the sparser and more uniformly distributed

vestiture of the under surface (in P. maculipes the sides of the abdomen are densely

squamose and a broad space down the middle is almost bare), with coarser whitish

scales intermixed. ‘The following forms may be noted :—

a. The upper and under surfaces with intermixed scattered whitish scales. (Fig. 24.)

Piazurus succivus and notabilis, Boh.

Mexico (Vera Cruz, Guerrero, and Oaxaca) and Guatemala (Atlantic and Pacific slopes).

(3. The under surface only with scattered intermixed whitish scales.

Mexico (Guerrero and Oaxaca) and Guatemala (Atlantic and Pacific slopes).

y. The vestiture of the upper surface darker, brown and black, the upper and under surfaces with scattered

whitish scales ; the eyes less approximate, the median carina of the rostrum sometimes extending upwards

between them.

Cryptorhynchus bufo, Sturm, in litt.

Mexico (Chiapas, Oaxaca). Four specimens.

c. The vestiture of the upper surface paler, brown and cinereous, the black markings wanting, the under

surface with scattered intermixed whitish scales; the eyes as in y.

Mexico (Amula and Misantla). Three specimens.

The forms a and 6 have been found in several localities with P. macu/ipes, of which

they are little more than extreme varieties. It is, however, convenient to retain

P. succivus as distinct, as it does not appear to extend south of Guatemala. Some

specimens have the head carinate between the eyes and the latter well separated. The

smaller ones have the prothorax strongly transverse, and the posterior femora not

nearly reaching the apex of the abdomen. ‘The size is very variable, one example

before me measuring 7$ mm. only in length, while our largest reaches 13? mm. Two

from Purula are infested with Acari.

PIAZURUS. lo

7. Piazurus maculipes. (Tab. I. figg. 25, 25a; 26, 27, 28, 28 a, vars.)

Piazurus maculipes, Gyll. in Schénh. Gen. Cure. iv. p. 660".

Piazurus saginatus, Boh. loc. cit. p. 661 ”.

Piazurus guttularius, Chevr. in litt. °.

Hab. Mexico!? (ex coll. Sturm, Flohr), Toxpam, Orizaba, San Andres Tuxtla,

Yolotepec, Juquila (Sad/é), Teapa (H. H. Smith), Cerro de Plumas, Misantla, Jalapa,

Tapachula (Hége); GuatEMALA, Panzos, Teleman, La Tinta, Lanquin, and San Gerdénimo

in Vera Paz, El Tumbador, El Reposo, Cerro Zunil, San Isidro, Panajachel, Volcan de

Atitlan, Mirandilla, Pantaleon, Zapote, Capetillo (Champion); Nicaragua, Chontales

(Belt, Janson, Richardson) ; Costa Rica, Azahar de Cartago, Pozo Azul (Underwood),

Rio Sucio (fogers), Talamanca (Biolley) ; Panama, Bugaba, Volcan de Chiriqui, David

( Champion).—CotomBia, &c.

A very variable and abundant insect, the extreme varieties of which are all more or

less connected in the long series before me. The following are the leading forms :—

a. The prothorax and elytra mottled with fulvous, cinereous, and black, the two prominences on the third

elytral interstice black and conspicuous, the elytra usually with a small spot in front of the median

prominence, another at the sides, and one at the apex of the fifth interstice, cinereous or whitish, the

apices emarginate. (Fig. 25.)

Mexico to Panama. The prevailing form in Mexico and Guatemala.

8. The prothorax fulvous, lineate with black, and with a sharply-detined, oblique, interrupted, ochreous line on

each side of the disc ; the elytra coloured as in @, the basal prominences large, the apices sharp. (Fig. 26.)

? Piazurus bispinosus, Gyll. loc. cit. p. 654%.

Costa Rica (Rio Sucio and Azahar de Cartago); two specimens. Colombia (Antioquia *).

y. The prothorax and elytra mottled with fulvous and black, the elytra with conspicuous white spots (the

anterior four arranged in an arcuate series across the middle), the basal prominences inconspicuous, the

strie finely punctate, the interstices almost flat, the apices obtuse ; the mesosternal cavity very shallow

behind. (Fig. 27.)

Nicaragua (Chontales). Four specimens.

6. The prothorax and elytra mottled with fulvous and black, the white spots on the latter sometimes wanting ;

the elytra comparatively short, the interstices almost flat, the basal prominences well-developed, the

apices obtuse.

Nicaragua (Chontales) and Panama (Bugaba). Twelve specimens.

e. The basal prominences of the elytra wanting, the apices emarginate ; the vestiture as ina. (Fig. 28.)

Nicaragua to Panama. The commonest form in Chiriqui.

The chief characters of P. maculipes are the feebly sinuate base of the prothorax

and elytra, and the almost bare, sparsely punctate space down the middle of the body

beneath. The two prominences on the third elytral-interstice are often inconspicuous

or wanting, and when this is the case the third and fourth striz are less sinuous; the

seriate punctures are sometimes coarse and the interstices more or less convex ; and

the apex is sometimes truncate (P. saginatus) or sharply dentate (? P. dispinosus, Gyll.).

The third joint of the funiculus varies in length. The 250 examples examined (about

100 of which belong to the var. ¢) range from 63-12 mm. in length, and 33-63 mm.

in breadth.

16 RHYNCHOPHORA.

8. Piazurus ciliatus.

Pecilma ciliatum, Germ. Ins. Spec. Nov. p. 254°.

Piazurus bidentatus, Gyll. in Schénh, Gen. Cure. iv. p. 655 *; villi. 2, p. 110°; Heller, Stett. ent.

Zeit. 1906, p. 33%.

Hab. Mexico (ex coll. Sturm).—Brazit!?°.

A single worn specimen (@) in Sallé’s Mexican collection (labelled P. maculipes,

Chevr., but not agreeing with Gyllenhal’s type of that insect) seems to be referable to

this species. It is closely allied to P. maculipes, but has the prothorax and elytra

more deeply sinuate at the base, and the third elytral interstice with a very large

oblong tubercle near the anterior margin. The ventral segments have a broad, smoother,

almost bare space down the middle; the first segment is deeply sulcate. The Mexican

habitat requires confirmation.

9. Piazurus pallidicinctus, sp.n. (Tab. I. fig. 29.)

Subelliptic, black, the antenne and the tips of the tarsi obscure ferruginous; the head, the prothorax with

the sides rather broadly, and four minute spots on its disc, the scutellum, the elytra with an irregular

transverse post-median fascia, a transverse humeral patch, and various small scattered spots, the entire

under surface (a broad space down the middle excepted), and legs, cinereous or fulvo-cinereous, the elytra

also with a common, transverse, dense, velvety-black patch at the middle, the rest of the vestiture of the

upper surface blackish-brown. Head densely, minutely punctate, the eyes subcontiguous; rostrum

densely punctate and carinate at the base, and smooth thence to the tip; joint 2 of the funiculus nearly

one-half longer than 3. Prothorax transverse, subconical ; densely, minutely punctate. LElytra very

much wider than the prothorax, rounded-triangular, transversely depressed below the base, the humeri

swollen, the apices rather sharp, obliquely truncate ; punctate-striate, the third and fourth striz sinuous,

the seriate punctures rather coarse on the basal half, the interstices densely, minutely punctate, flat on

the disc, 3 slightly widened at the middle. Beneath closely punctate, smoother down the middle; ventral

segment | broadly sulcate, 5 sinuato-truncate, and also feebly foveate, at the apex.

Length 93-103, breadth 5-51 millim. (<¢.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Four specimens. ‘The cinereous fascia of the elytra, preceded by a transverse

velvety-black patch, and the cinereous sides of the prothorax, readily distinguish

P. pallidicinctus. ‘There are no tubercles on the elytra; the third interstice, however,

is widened at the middle.

10. Piazurus sulphuriventris. (Tab. I. fig. 30.)

Piazurus sulphuriventris, Heller, Stett. ent. Zeit. 1906, pp. 34, 39".

Hab. Nicaracua (Sallé!), Chontales (Belt, Janson); Costa Rica, San José (Mus.

Dresden); Panama, Volcan de Chiriqui (Champion).

Twelve specimens, agreeing with the type communicated by Dr. Heller. This insect

is very like P. stedlaris, Pasc., fom Sarayacu; but differs from it in having the elytra

flattened on the disc (the third interstice neither swollen nor widened at the base and

PIAZURUS. 17

middle), with the strie finely punctate from the base, and the vestiture of the flanks of

the prothorax dense and uniform. The prothorax and elytra have several scattered

sulphur-yellow spots (six or eight on each elytron being usually larger than the rest),

and the entire flanks and under surface (a broad almost smooth space down the middle

excepted) are similarly coloured. The first ventral segment is broadly sulcate down

the middle in both sexes, and the fifth is sinuato-truncate at the apex in the male.

11. Piazurus stigmaticus, sp.n. (Tab. I. figg. 31.)

Subovate, broad, dull above, black, the antenne and the tips of the tarsi ferruginous; the upper surface

variegated with minute fulvous, dark brown, and whitish scales, the whitish scales on the prothorax

condensed into a narrow sinuous submarginal line, which extends on to the humeri, the fulvous scales

condensed into interrupted lines on the elytra, the flanks of the prothorax in great part black ; the elytra

with a very large, common, transverse patch at about the middle, extending for a short distance up the

suture, a small triangular lateral patch in a line with it, an oblique mark on each side of the scutellum, a

small spot exterior to it, and another spot near the apex, velvety-black; the vestiture of the under surface

and legs fulvous and white intermixed, rather sparse, the fulvous scales clustered into patches at the sides

of the ventral segments 2-4, the femora fusco-annulate. Head densely punctate, carinate between the

narrowly-separated eyes; rostrum densely punctate and sharply carinate at the base and sparsely punctate

thence to the tip, the apical half smoother in the 9; joints 2 and 3 of the funiculus equal in length,

3-7 transverse. Prothorax transverse, subconical, slightly constricted in front ; densely, finely punctate

and obsoletely carinate. Elytra short and broad, rounded-triangular, flattened on the disc anteriorly,

conjointly rounded at the apex; punctate-striate, the interstices densely, minutely punctate, the outer

ones feebly convex. Beneath closely punctate; ventral segments 1 and 2 slightly depressed down the

middle, 5 subtruncate at the apex in the g, and rounded at the tip and plicate along the centre in the 2.

Length 63-8, breadth 32-42 millim. (¢ 2.)

Hab. Nicaragua, Chontales (Junson); Costa Rica, Turrialba 500 metres (Biolley) ;

Panama, Bugaba (Champion).

Hight specimens. A species with comparatively short, broad elytra, which are

conjointly rounded at the apex, and ornamented with sharply-defined, dense, velvety-

black patches, the one crossing the suture at about the middle very large and rounded

externally. The white submarginal line on the prothorax is evanescent. The black

patch at the sides of the elytra sometimes extends upwards to the shoulder.

12. Piazurus melanostictus. (Tab. II. fig. 2.)

Piazurus melanostictus, Boh. in Schénh. Gen. Cure. iv. p. 6657.

Hab. Nicaragua, Chontales (Belt, Janson); Panama, Bugaba, Volcan de Chiriqui

(Champion).—Souta America, Cayenne}.

Found in numbers in Chiriqui. This species may be known by its conical, more or

less distinctly carinate prothorax, and the subtriangular, depressed elytra, which are

rounded at the apex and have each an oblong velvety-black patch near the suture at

about the middle, the patch preceded and followed by a small white spot and sometimes

coalescent with that on the opposite elytron. The second joint of the funiculus is

about one-half longer than the third.

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, August 1906. DD

18 - RHYNCHOPHORA.

13. Piazurus alternans. (Tab. II. figg. 3, 34a, 2.)

Piazurus alternans, Kirsch, Berl. ent. Zeitschr. 1875, p. 201'; Heller, Stett. ent. Zeit. 1906,

p. 347.

Hab. Nicaraeva, Chontales (Janson) ; Panama, Bugaba, Volcan de Chiriqui (Cham-

pton).—Braziu (coll. Fry); Prrut.

A common insect in Chiriqui, and varying greatly in size (length 3-65 mm.).

Dr. Heller has been kind enough to compare one of our specimens with the Peruvian’

type in the Dresden Museum. PP. alternans may be known by its subovate form and

the convex, fulvo-tessellate alternate elytral interstices, the third swollen below the

base. The eyes are narrowly separated; the second joint of the funiculus is about

twice as long as the third; the ventral segments are alutaceous, the second excavate

down the middle in the male, and the first suture is strongly sinuate. ‘Two examples

have a pale patch on each side of the prothorax at the base.

14. Piazurus condyliatus. (Tab. II. figg. 4, 4a.)

Piazurus condyliatus, Boh. in Schénh. Gen. Cure. iv. p. 678".

Piazurus (Pseudopinarus*) condyliatus, Heller, Stett. ent. Zeit. 1906, p. 34.

Hab. Mexico, Toxpam in Vera Cruz (Sallé), Cerro de Plumas (Hége); GUATEMALA, -

Chacoj and Tamahu in Vera Paz (Champion); Panama, Bugaba, Volcan de Chiriqui,

Caldera (Champion).

A common insect in Chiriqui. Recognizable by its small size (length 5-62 mm.), the

very elongate second joint of the funiculus, the setigerous granules on the elytra, and

the two swollen oblong prominences on the third interstice. The head has a circular

flattened space on the vertex. The sides of the prothorax are parallel at the base.

‘The ventral surface is densely punctate and squamose, and the first segment is

unimpressed.

15. Piazurus rana. (Tab. II. figg. 5, 5a.)

Piazurus (Pseudopinarus*) rana, Heller, Stett. ent. Zeit. 1906, pp. 34, 41’.

Hab. Mexico (ea coll. Flohr), Toxpam in Vera Cruz (Sallé) ; Costa Rica, San Carlos

(Mus. Dresden ').

The type of this species has been communicated by Dr. Heller, and we have four

specimens from Mexico agreeing with it. P.rana is very like P. condyliatus, but

larger ; the second joint of the funiculus is nearly three times as long as the third:

the prothorax has a large, compressed prominence on the middle of the disc and a

small tubercle on each side in a line with it; the elytra are subquadrate, and the

second oblong prominence on the third interstice is wanting. ‘he first ventral

* In Dr. Heller's table the names Pseudopiazurus and Pseudopinarus are transposed on p. 34,

PIAZURUS. 19

segment has a shallow arcuate groove between the coxex ; the fifth segment is sinuato-

truncate at the apex in the male.

16. Piazurus quadratus, sp. n. (Tab. II. fige. 6, 64,8, 3.)

Broad, depressed, shining, black, the antenna and the tips of the tarsi obscure ferruginous; sparsely clothed

with narrow brownish and cinereous scales, the elytral tubercles each bearing a short, decumbent, pallid

seta. Head rugosely punctate, the vertex granulate in front, depressed in the middle, the eyes contiguous ;

rostrum slightly widened towards the tip, lineato-punctate at the base, and very sparsely, finely punctate

thence to the apex; joints 2 and 3 of the funiculus equal in length. Prothorax short, about one-half

broader than long, abruptly narrowed and compressed at the sides anteriorly, the sides parallel from the

middle to the base, the base itself deeply bisinuate; rather coarsely, irregularly punctate. Elytra about

one-half wider than the prothorax, subparallel in their basal third, conjointly rounded at the apex, the

disc strongly, transversely depressed below the base; coarsely punctate-striate, the punctures becoming

smaller and oblong in shape on the apical declivity, the interstices (except on the apical portion of the

disc) set with numerous small, smooth, conical, setigerous tubercles, 3 with a stout, oblong prominence at

the middle and a small prominence below the base, and 5,7, and 9 more or less raised. Ventral segments

very sparsely punctate, 1 plicate on each side in a line with the inner edge of the posterior coxa, 2 along

the middle nearly as long as 3-5 united, 5 with a rounded depression in the centre, which is limited in

front by an arcuate ridge, the first suture strongly arcuate. Pygidium narrowly exposed. Legs rather

short ; anterior femora unarmed, intermediate femora with a small tooth, posterior femora very broadly

clavate and armed with a large triangular tooth ; posterior tibie broad, curved, mucronate at the inner

apical angle.

Length 8, breadth 41 millim. (¢.)

Hab, Panama, Bugaba (Champion).

One specimen. A peculiar form, easily recognizable by the very short, abruptly

narrowed prothorax, the broad, subquadrate, transversely excavate, granulate elytra,

and the greatly developed posterior femora. P. quadratus has the first ventral

segment arcuato-sulcate, as in P. centrali-americanus, but the species seems to belong

to Heller's subgenus Pseudopinarus. It has the mesosternum less transverse than in

the genus Pinarus.

17. Piazurus centrali-americanus. (Tab. II. figg. 7; 7a, hind leg.)

Piazurus (Pseudopiazurus) centrali-americanus, Heller, Stett. ent. Zeit. 1906, pp. 32, 34, 40°.

Hab. Mexico, Toxpam in Vera Cruz (Sal/é); Guaremata, Las Mercedes, Cerro Zunil,

Mirandilla (Champion); Nicaragua, Chontales (Janson); Costa Rica, San Carlos

(Mus. Dresden); Panama, Bugaba ( Champion), Chiriqui ( Zrétsch).—Kcuanor (Buckley,

in coll. Fry).

Thirteen specimens, agreeing with the Costa Rican type communicated by Dr. Heller.

A large, robust form, with contiguous eyes, a narrow, conical prothorax, impressed with

intermixed coarse and minute punctures, and broad, coarsely seriate-punctate elytra, the

interstices of which are narrow, convex, and seriato-granulate. The anterior and

intermediate femora are unarmed, the posterior pair with a large triangular tooth.

The pygidium is rather broadly exposed. The first ventral segment is longitudinally

DD 2

20 RHYNCHOPHORA.

plicate in a line with the inner edge of each posterior coxa, the two ridges forming the

outer limits of a f-shaped groove; the fifth segment is shallowly arcuate-emarginate

in the male. In the allied P. obesus, Boh., the sharp tooth on the inner edge of the

posterior tibiz is wanting.

PELTOPHORUS.

Peltophorus *, Schénherr, Gen. Cure. viii. 2, p. 451 (1845); Lacordaire, Gen. Col. vu. p. 151;

Heller, Abhandl. Mus. Dresden, no. 11, pp. 8, 18 (1895).

Zygops, Leconte and Horn, Class. Col. N. Am. 2nd edit. p. 489 (1883); Casey, Ann. N. York

Acad. Sci. ix. p. 667 (1897).

Apatorhynchus, Desbrochers, Aun. Soc. Ent. Belg. xxxv. pp. 37, 40 (1891).

A genus peculiar to Mexico, Texas, and Arizona. In addition to the characters

given by Lacordaire to separate it from Zygops (the relatively longer basal joint of the

funiculus, the excavate mesosternum, &c.), it may be noted that the rostral canal is

much deeper, the anterior coxe are more widely separated, and the intermediate and

posterior tibiz are strongly ciliate on their outer edge from about the middle to the

apex. The males have a broad, oval or pyriform, depression extending down the middle

of the ventral surface. P. polymitus, like Cratosomus punctulatus, is a very variable

insect. In both species the alternate elytral interstices 3, 5, 7, and 9 are raised and

seriato-granulate.

1. Peltophorus polymitus. (Tab. II. figg. 8; 8a, hind leg; 9, 9 a, var.)

Peltophorus polymitus, Boh. in Schénh. Gen, Cure. viii. 2, p. 452°.

Peltophorus leucomelas, Lacord, Gen. Col. vii. p. 152, nota (sine descr.) *.

Zygops seminiveus, Lec. Trans. Ent. Soc. xii. p. 81 (1885)°; Lec. and Horn, Class. Col. N. Am.

2nd edit. p. 489"; Casey, Ann. N. York Acad. Sci. vi. pp. 459, 460°.

Zygops suffusus, Casey, loc. cit.°.

Hab. NortH America, Pinal Mts. (Wickham), Arizona* 4, Texas °—Muexico27 (ex

coll. Flohr), Northern Sonora (Morrison), Ventanas in Durango, Esperanza (Hoge),

Puebla (Sallé), Jalapa (errari-Perez), Tehuantepec (coll. Fry), Villa Alta in Oaxaca }.

Var. leopardinus.

&. Lygops (Apatorhynchus) leopardinus, Desbr. Aun. Soc. Ent. Belg. xxxv. p. 40”.

The prothorax with four or five spots on the disc, which are often more or less confluent, two on each side, and

one or two others on the flanks, black. (Fig. 9.)

Hab. Muxico’, Matamoros Izucar, Cuernavaca, Huitzilac (Hége), Guerrero (Baron),

Juquila (Sallé).

The two forms of this insect are about equally common in Mexico, but only one of

them, the true P. polymitus, extends northward into the Southern United States. The

white, yellowish, or fulvous markings are very variable in extent (often asymmetric on

the elytra, or condensed on the disc into short, oblique, or transverse streaks), both on

* The name Peliophora was used by Burmeister in 1835 for a genus of Hemiptera,

PELTOPHORUS. —ZYGOPS. 21

the upper and under surfaces, and on the pygidium and legs. The males have a very

large, pilose, pyriform depression on the abdomen beneath, extending from the base to

the apex, the corresponding space being simply flattened and squamose in the female.

Leconte and Horn‘ suspected that Z. seminiveus was identical with a Mexican species.

I have seen Desbrochers’s type of Z. leopardinus.

2. Peltophorus jordani. (Tab. II. figg. 10, 10.)

Peltophorus jordani, Heller, Abhandl. Mus. Dresd. no. 11, p. 18°.

Hab. Mrxico (Mus. Brit.), Cuernavaca (Mus. Dresden}, Sailé), Parada (Sallé).

This insect differs from P. polymitus in having the disc of the prothorax separated

from the flanks by a distinct sinuous ridge, and the disc itself immaculate between the

sharply-defined brownish-white marginal stripe; the elytra are slightly mottled with

light and dark scales, and have a short pallid streak along the suture below the base.

The rostrum is closely punctate to the apex in the male, the apical portion being

smoother in the female. The ventral depression of the male is much shallower than

in the same sex of P. polymitus and does not extend beyond the second segment; the

hairs, too, are wanting.

ZY GOPS.

Zygops, Schénherr, Cure. Disp. Meth. p. 3800 (1826); Gen. Cure. iv. p. 601; Lacordaire, Gen.

Col. vii. p. 150; Desbrochers, Ann. Soc. Ent. Belg. xxxv. p. 37 (1891); Heller, Abhandl.

Mus. Dresden, no. 11, pp. 8, 17 (nec Leconte and Casey).

A Tropical-American genus including about fifty described species and well repre-

sented within our limits. It is chiefly recognizable by the completely exposed

pygidium, the moderately long rostrum, and the flattened mesosternum. The identi-

fication of some of the smaller forms is, unfortunately, impossible from the descriptions

alone, often based upon insufficient material, and even in Desbrochers’s various papers

on Zygops the sexual characters are not recognized as such or ignored. The males

have the first two ventral segments more or less depressed down the middle, the.

depression on the second segment sometimes pilose, and the anterior tarsi in a few

cases (Z. vitticollis and Z. mewicana) hairy, as in certain Cryptorrhynchids.

a. Posterior femora extending far beyond the apex of the abdomen,

longer than the elytra, bidentate; posterior tibiz sharply mucro-

nate at the inner apical angle; prothorax feebly bisinuate at the

base; neck and pygidium carmine-red . . . . . . . . . . rufitorquis, sp. n.

6. Posterior femora less elongate, extending beyond the apex of the

abdomen, but shorter than the elytra.

a’. Posterior knees with the outer lobe angularly produced ; posterior

femora bi- or tri-dentate; prothorax subtruncate at the base,

sharply trivittate; body elongate . . . . . .. . . . .~ Vitticollis, Desbr.

RHYNCHOPHORA.

b'. Posterior knees with the outer lobe not longer than the inner ;

prothorax strongly bisinuate at the base.

a:, Prothorax with a large red patch on each side in front; posterior

femora not annulate.

a’. Posterior femora bidentate; eyes well-separated; prothorax

nigro-bivittate and nigro-fasciate ; pygidium black

b°. Posterior femora unidentate ; eyes subcontiguous ; prothorax

with a dark patch on the disc; pygidium red

b°. Prothorax without red markings; posterior femora sharply

nigro-annulate.

c’. Posterior femora bidentate ; posterior tibize feebly mucronate

at the inner apical angle.

a‘, Prothorax with an anchor-shaped blackish patch on the

disc, the sides albo-maculate posteriorly; elytra varie-

gate. we ee ee es

b*. Prothorax with a rounded or subquadrate dark patch on

the disc, the sides obliquely streaked with white pos-

teriorly ; elytra with a black patch, preceded and followed

by awhite spot ©... ee we ew ee

d*. Posterior femora unidentate; posterior tibie flavo-annulate,

sharply mucronate at the inner apical angle; prothorax with

a subtriangular dark patch on the disc, nigro-maculate on

the flanks; elytra variegate . . . . woe eee

c. Posterior femora shorter, not or about reaching the apex of the

abdomen.

c'. Posterior knees with the outer lobe broadly produced ;_pos-

terior femora 4- or 5-dentate; body subelliptic: length over

9mm... 2. 6 ee ew ee ee we ee .

. Posterior knees with the outer lobe not longer than the inner;

aoe oblong or oblong-ovate: length 33-7} mm.

. Posterior femora 8- or 4-, the other femora 2 2-, dentate.

- Elytra with large fulvous, white-edged spots, the prothorax

with a transverse, arcuate, black fascia; the vestiture of the

under surface almost wholly white . woe ee

f*. Elytra variegate, the prothorax not transversely fasciate ; the

vestiture of the under surface more or less mottled at the

sides.

ce‘. Prothorax and elytra blackish, sprinkled with white .

d‘, Prothorax and elytra variegate; posterior femora fuscous

at the middle.

a’. Prothorax interruptedly trivittate ; joint 3 of the funi-

culus as long as 4—7 united . soe .

. Prothorax spotted ; joint 3 of the funiculus much shorter

than 4-7 united. 2. 2. 2. 1. 2 ee ee ee

rufomaculata, sp. n.

erythropyga, sp. D.

mexicana, Boh.

histrio, Boh.

maculiventris, sp. N.

qguadridentata, sp. n.

amenula, sp. 0.

disjecta, sp. n.

sellata, sp. n.

tridentata, Gyll.

ZYGOPS. 23

a’, All the femora bidentate ; prothorax trivittate, the elytra varie-

gate; under surface spotted with brown along the sides, the ‘

scales narrow ; posterior femora fusco-annulate near the middle. maculipes, Desbr.

e*. Posterior femora bi-, the other femora uni-, dentate ; posterior

femora fusco-maculate at the apex above.

g°. Vestiture coarse, variegate above, white beneath, a blackish spot

on the metathoracic episterna excepted ; outer tooth of poste-

rior femora narrow, minute, and arising from the larger one. cataleuca, sp. n.

h’. Vestiture much finer, that of the under surface wholly white ;

outer tooth of posterior femora small, triangular, separated

from the larger one.

e*. Prothorax trivittate; elytra variegate. . . . . . . . Grivittata, sp. n.

f*. Prothorax interruptedly trivittate; elytra with a spot on

each side of the scutellum at the base, and another near

the middle of the suture, black . . . . . . . . . sobrina, Gyll.

1. Zygops rufitorquis, sp.n. (Tab. II. figg. 11, lla, 2.)

Elongate-ovate, narrow, concave above, black, the antenne and the dorsal portion of the femora obscure

ferruginous, the vestiture close and fine; the head (the narrow intraocular space and the base of the

rostrum excepted, which are white), a band round the apex of the prothorax, and the pygidium carmine-

red, the prothorax also encircled across the middle by a narrow white and a broader black band, the

latter sending off two branches to the base, the intervening spaces cinereous; the elytra with three

transverse black fascize—one below the base, one beyond the middle, and one near the apex, the second

extending obliquely forwards near the suture,—and for the rest clothed with cinereous and fulvous

scales; the under surface white, the sides of the meso- and metasternum maculated with fulvous and

black, the abdomen with two transverse black fasciz# on each side——one at about the middle and the other

close to the apex; the legs cinereous, the dorsal surface of the femora partly fulvous. Eyes narrowly

separated; rostrum rather stout, moderately long, arcuate, broadly bisulcate and unicarinate at the base;

joint 2 of the funiculus one-half longer than 3. Prothorax transverse, gradually narrowing forwards and

slightly narrowed at the base, the base itself feebly bisinuate; densely, minutely punctate. Elytra

oblong, not wider than the prothorax, obtuse at the apex, hollowed on the disc below the base; very

finely punctate-striate, the interstices densely punctulate, flat, 1 granulate towards the base and apex.

Posterior legs very elongate, the others moderately long ; anterior and intermediate femora uni-, the poste-

rior femora bi-, dentate, the outer tooth on the latter small and distant from the longer one; posterior

tibiee curved, rather broad, very sharply mucronate at the inner apical angle in both sexes. Abdomen

with the second ventral segment, and the apex of the first, depressed down the middle in the ¢.

Length 7-74, breadth 25—2.%, millim. (¢ 2.)

Hab. Nicaragua, Chontales (Belé: 9 ).—Souta America, Cayenne and Brazil

(Mus. Brit.: 3 2).

Seven specimens. In this extraordinary insect the head (except between the eyes),

a band extending round the apex of the prothorax, and the pygidium are of a brilliant

carmine-red colour ; the posterior femora are longer than the elytra; and the posterior

tibia (as in Z. maculiventris) are sharply mucronate at the inner apical angle *.

Z. scenica, Gyll., is somewhat similarly coloured.

* In an unnamed closely allied Brazilian form in the British Museum the posterior tibie of the ¢ are

broadly dilated.

24 RHYNCHOPHORA.

2. Aygops vitticollis, (Tab. II. fig. 12, ¢ .)

Zygops vitticollis, Desbr. Ann. Soc. Ent. Belg. xxxv. p. 39°.

Hab. Mexico! (Mus. Brit.), Toxpam (Sallé), Cerro de Plumas (//ége) ; GUATEMALA

Teleman, Chacoj, and San Gerénimo in Vera Paz (Champion); Nicaragua (Sallé),

Chontales (Belt, Janson); Panama, Volcan de Chiriqui (Champion).

Found in plenty in the hottest parts of the Polochic Valley in Guatemala. It is

easily recognizable by its elongate form, the sharply trivittate prothorax, and the

fulvo-variegate elytra, the under surface whitish, spotted with fuscous along the sides.

The suture of the elytra is granulate almost to the base. The male has the anterior

tarsi clothed on each side with long hairs, the first and second ventral segments broadly

depressed along the middle, and the fifth segment sinuato-truncate at the apex. The

femora have one or two (the anterior pair sometimes with three) small teeth exterior

to the larger one. The length varies from 45-93 mm.

3. Zygops rufomaculata, sp.n. (Tab. II. figg. 13, 134, 2.)

Elongate-ovate, broad, flattened above, black, the vestiture close and fine; the head with an ochreous line

around the eyes; the prothorax flavo-cinereous, with a very large carmine-red patch on each side in

front, which extends downwards on to the flanks, and two black vittee on the disc, these latter connected

near the base with a curved, sinuous, black stripe extending around the flanks from the lower anterior

margin; the elytra with the basal half black, with a short curved stripe near the suture at the base, and

various spots below and exterior to it, flavo-cinereous or fulvous, the apical half alternately lineate with

fuscous and cinereous ; the pygidium black ; the vestiture of the under surface dense, white, extensively

maculated with black—a very broad oblique band on the sides of the metasternum extending forwards

over the mesosternal side-pieces, an oblique stripe on each side of the abdomen, and two stripes down the

segments 2-5,—that of the legs brownish or cinereous, the femora without darker annuli. Eyes well-

separated ; rostrum arcuate, tricarinate and deeply quadrisulcate at the base; joint 2 of the funiculus

more than twice the length of 3, 4-7 submoniliform. Prothorax transverse, strongly bisinuate at the

base, the sides arcuately converging anteriorly ; densely, minutely punctate. Elytra slightly wider than

the prothorax, somewhat rounded at the sides, separately rounded at the apex, and arcuately depressed

below the base ; finely punctate-striate, the strie# sinuous below the base, the alternate interstices wider

than the others, convex, and sparsely seriato-granulate, 1 conspicuously granulate beyond the middle.

Legs elongate ; posterior femora bi-, the others uni-dentate.

Length 95-18, breadth 4-54 millim. ( 9.)

Hab. Nicaracua, Chontales (Janson).—CotomBiA, Buenaventura (coll. Fry).

Three specimens. A peculiarly-marked insect, the elytra having the basal and

apical halves difterently coloured, the prothorax both transversely and longitudinally

lineate with black, and ornamented with a large carmine-red patch on each side

in front. Z. rufomaculata is related to Z. mexicana, but in colour it is more like

Z. rubricollis, Boh.

4. Zygops erythropyga, sp.n. (Lab. ll. fige. 14, 14a, 2.)

Oblong-ovate, broad, flattened above, black or piceous, the antenne and sometimes the legs and rostrum in

part, reddish, the vestiture close and fine; the head with an ochreous ring around the eyes ; the

ZYGOPS. 25

prothorax with a large, subquadrate, dark patch on the disc, the short anterior lobe and the broad

depressed space on each side in front (the fulvous inner portion excepted) carmine-red, the rest of the

vestiture sparse, cinereous; the scutellum and elytra variegated with cinereous and fuscous, the elytra

with a broad space along the sides (extending from the middle to the apex) black, enclosing two trans-

verse whitish spots; the pygidium carmine-red; the vestiture of the under surface dense, whitish,

marked with large black spots—two on the flanks of the prothorax, one on the mesothoracic epimera,

one on the sides of the metasternum (extending across the episterna), and four on the abdomen,—the

sides of the last ventral segment and a patch on the metathoracic episterna carmine-red; the legs

cinereous, the posterior femora with a reddish or fulvous streak on the outer face near the base. Eyes

almost contiguous in front; rostrum arcuate, tricarinate and quadrisulcate at the base; joint 2 of the

funiculus nearly twice as long as 3, 4-7 submoniliform. Prothorax transverse, rounded at the sides, very

deeply bisinuate at the base; densely, minutely punctate. Elytra very little wider than the prothorax,

obtuse at the apex, arcuately depressed below the base; finely punctate-striate, the interstices densely

punctulate, 1 and 5 sparsely granulate, 1 swollen at the base. Legs elongate; femora unidentate; tibice

feebly mucronate at the inner apical angle.

Length 93-134, breadth 4-54 millim. (?.)

Hab. Nicaragua, Chontales (Belt).—Ecvapor, Lita (coll. Fry).

We have received three specimens of this species, and there are six others in the

Pascoe and Fry collections at the British Museum. Near Z. maculiventris, but with

the broad depressed space at the sides of the prothorax in front, the pygidium, and a

patch on the sides of the metasternum and abdomen, carmine-red ; the prothorax more

strongly sinuate at the base, the elytra somewhat rounded at the sides, the femora and

tibiz not annulate.

5. Lygops mexicana. (Tab. II. figg. 15, 15a, 2.)

Zygops mexicanus, Boh. in Schonh. Gen. Cure. iv. p. 611°.

Zyygops signativeniris, Boh. op. cit. vill. 2, p. 897.

Hab. Mexico (Mus. Brit.), Vera Cruz (Chevrolat!), Toxpam, San Andres Tuxtla,

Santecomapan (Sa//é), Cerro de Plumas (Hége); Guatemaa, Yzabal (Sallé), Panzos,

Chacoj, Senahu, and San Gerénimo in Vera Paz, El ‘Tumbador, Las Mercedes, Paraiso,

San Isidro, Cerro Zunil, El Reposo, Pantaleon (Champion); Nicaracua (Sallé),

Chontales (Belt, Janson); Costa Rica, Limon, San Carlos (Biolley); Panama, Bugaba,

Tolé (Champion).—Sovtu America, Colombia, Ecuador, Cayenne ?, Peru.

A common insect in the “tierra caliente” of Central America, occurring on both

the Atlantic and Pacific slopes, and extending southward to Peru. It may be known

from most of its allies by the anchor-shaped dark patch on the disc of the prothorax,

the scattered white spots on both the prothorax and elytra (two of which, subtriangular

in shape, are situate near the hind angles of the former), the large, subtriangular, black

patch at the sides of the elytra, the black patches on the abdomen and on the sides of

the metasternum, &c. The male has the fifth ventral segment sinuato-truncate at the

apex, the first and second segments depressed down the middle (the groove being

shallow in the female), and the anterior tarsi clothed with a few long, fine, projecting

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, August 1906. EX

26 RHYNCHOPHORA.

hairs. The posterior femora always have a short triangular tooth exterior to the

long one. The length varies from 6-10} mm.

6. Zygops histrio. (Tab. II. fig. 16, ¢.)

Zygops histrio, Boh. in Schénh. Gen. Cure. iv. p. 612°.

? Zygops submaculatus, Boh. loc. cit. *.

Lygops affinis, De}. in litt.*.

Hab. Nicaracua, Chontales (Belt).—Sourn America, Cayenne! ?, Brazil}.

Four specimens, agreeing with an example of Z. affinis, Dej., from Brazil, in

the British Museum. They are narrower than Z. meaxicana, and have two oblique

whitish streaks near the hind angles of the prothorax; the black patch on the

elytra smaller, rounded or subquadrate, and preceded and followed by a white

spot; and the legs in great part ferruginous. The male-characters are similar,

except that the anterior tarsi want the projecting hairs. According to Desbrochers

(Ann. Soc. Ent. Belg. xxxv. p. 42), Z. submaculata, Boh. (affinis, Dej.), is a variety of

the same species,

7. Gygops maculiventris, sp.n. (Tab. Il. figg. 17, 17a, ¢.)

Oblong, rather broad, flattened above, piceous, the antennz and tarsi obscure ferruginous, the tibie with

a very broad flavo-testaceous annulus near the apex, the vestiture close and fine; the head with an

ochreous line around the eyes; the prothorax cinereous at the sides and down the middle, becoming

fulvous towards the apex, and with a large, subtriangular, anteriorly excised, fuscous patch on the

posterior portion of the disc; the rest of the upper surface mottled with brownish-black and flavo-

cinereous, the elytra with a sharply-defined yellowish spot at the sides beyond the middle and another

in a line with it near the apex; the vestiture of the under surface dense, whitish-ochreous, sharply

maculated with black—a broad, curved, irregular stripe on the flanks of the prothorax (visible as two

spots from above), a small spot on the mesothoracic epimera, a large patch on the sides of the meta-

sternum (not extending on to the episterna), and four large spots on the abdomen,—that of the legs

ochreous or flavo-cinereous, the femora each with a blackish patch. Eyes very large, narrowly

separated ; rostrum arcuate, tricarinate and quadrisulcate at the base; joint 2 of the funiculus nearly

twice as long as 3. Prothorax transverse, rounded at the sides anteriorly, strongly bisinuate at the

base ; densely, minutely punctate. Elytra moderately long, a little wider than the prothorax, obtuse

at the apex, transversely depressed below the base; finely punctate-striate, the interstices densely

punctulate, 1 and 5 sparsely granulate, 1 swollen at the base and 5 slightly raised. Ventral segments

1 and 2 depressed down the middle, the depressed space on 2 densely clothed with erect yellowish

hairs. Femora each with a single sharp tooth, the posterior pair reaching beyond the apex of the

abdomen. Posterior tibie sharply mucronate at the inner apical angle. Anterior tarsi without

projecting hairs.

Length 9-123, breadth 4-53 millim. (<.)

Hab, Guatemaa, Cerro Zunil 4000 feet (Champion).

Two males. A remarkably distinct species, nearly allied to Z. mevicana; but

differing from it in the nigro-maculate flanks of the prothorax, the subtriangular

dark patch on its disc, the absence of white spots on the upper surface,

unidentate femora, the flavo-annulate tibie, &c.

the equally

ZYGOPS. 27

8. Zygops quadridentata, sp.n. (Tab. II. figg. 18, ¢; 184, hind leg.)

Subelliptic, broad, flattened above, nigro-piceous, the antenne obscure ferruginous ; the vestiture dense and

fine, fulvous-brown, the head with a line around the eyes, and the prothorax with a faint median line

and a narrow, sinuous, oblique stripe on each side, whitish, the elytra with widely scattered black and

whitish spots, a black excised patch near the suture at about the middle being larger than the rest, the

pygidium with a whitish median line; beneath flavo-cinereous, slightly mottled with brown along

the sides, the fifth ventral segment with a brown spot on each side; the legs flavo-cinereous, the

posterior femora brown at the apex. Eyes narrowly separated ; rostrum arcuate, rugosely punctate

and feebly tricarinate at the base; joint 2 of the funiculus about one-half longer than 3. Prothorax

transverse, feebly bisinuate at the base, the sides sinuate and rapidly converging from the middle

forwards ; densely, minutely punctate. Elytra much wider than the prothorax, transversely depressed

below the base, slightly rounded at the sides, obtuse at the apex; finely punctate-striate, the interstices

densely punctulate, flat, 1 granulate from the base to the apex. Ventral segments 1 and 2 broadly

excavate down the middle. Legs rather short, the posterior femora extending slightly beyond the apex

of the abdomen ; posterior femora 4- or 5-, and the others 2-, dentate, the former with a rather long,

truncated plate at the outer apical angle.

Length 93-10, breadth 47-5 millim. (<¢.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé).

Two males. A rather large, broad, robust form, subelliptic in shape, with the legs

comparatively short and the posterior femora armed with three or four small teeth

exterior to the larger one, the outer lobe at the apex produced into a broad truncated

plate. The elytra are marked somewhat as in Z. trivittata. Various nearly allied

species occur in South America, but they want the long lamella at the apex of the

posterior femora.

9. Zygops amenula, sp. n. (Tab. II. figg. 19, 19a, 2.)

Zygops amenula, Jekel, in litt.

Elongate-ovate, rather convex, black, the antenne ferruginous at the base ; densely clothed with small scales :

the head with a A-shaped fulvous or white mark between the eyes, the prothorax with a broad, transverse,

arcuate fascia on the basal portion of the disc, and a broad oblique stripe behind the eyes, black, the

intervening space fulvous, the outer and inner basal portions and the scutellum white, the elytra black,

each with four or five fulvous, white-edged spots (the three larger ones placed in an irregular longitudinal

series on the disc, the posterior one curved, the others small and exterior to the first), the pygidium

black, white at the sides and along the middle; the vestiture of the under surface very dense, white,

the mesothoracic episterna in part, a space between the middle and posterior cox, and the sides of the

first ventral segment, black ; the anterior and intermediate femora, and a patch on the hind pair above,

white, the rest of the vestiture of the legs in great part black. Eyes very large, almost contiguous in

front; rostrum strongly arcuate, moderately long, unicarinate and rugulose at the base; joints 2 and 3

of the funiculus elongate, 2 twice the length of 8. Prothorax transverse, subquadrate, narrowed in

front, very feebly bisinuate at the base; densely, minutely punctate. Elytra oblong, slightly wider

than the prothorax, truncate at the base and obtuse at the apex; finely and shallowly punctate-striate,

the interstices densely punctulate, flat, 1 feebly granulate. Legs rather short ; posterior femora tri-,

the others bi-, dentate, the posterior pair about reaching the apex of the abdomen.

Length 63-63, breadth 24 millim. (92?)

Hab. Nicaracta, Chontales (Belt).—Sourn America, Rio Janeiro, Paré (Mus. brit.).

Three specimens of this species have been received from Chontales. The elongate

shape, the black elytra, ornamented with large, fulvous, white-edged spots, the curved,

EE 2

28 RHYNCHOPHORA.

transverse, black fascia on the disc of the prothorax at the base, the dense pure white

vestiture of the greater part of the under surface, the tridentate posterior femora,

and the long third joint to the funiculus, readily distinguish Z. ame@nula. Some

of the South-American examples have the black fascia on the prothorax divided

down the middle, the basal spots on the elytra white and the others angulate, &c.

10. Zygops disjecta, sp. n. (Tab. II. fig. 20.)

Oblong-ovate, nigro-piceous or black, variegated above and beneath with small scattered white scales,

which become more crowded along the middle of the body beneath, the rest of the vestiture uniformly

fuscous. Eyes very large, almost contiguous in front; rostrum arcuate, rather elongate, rugosely

punctate and shallowly quadrisulcate at the base, and smooth thence to the tip; antenne with joint 2 of

the funiculus very elongate, nearly twice the length of 3, the latter rather longer than 4~7 united, the

club oblong-ovate. Prothorax transverse, narrowed in front, feebly bisinuate at the base; densely, finely

punctate. Elytra considerably wider than the prothorax, comparatively short, broadly truncate at the

apex; finely punctate-striate, the interstices flat, densely punctulate, 1 obsoletely granulate. Legs

rather short and stout; posterior femora tri-, the others bi-, dentate, the outer teeth on the posterior pair

very short.

Length 61-71, breadth 3-3} millim. (2?)

Hab. Panama, Volcan de Chiriqui (Champion).—Braziu, Espirito Santo (coll. Fry).

Three specimens, the one from Chiriqui with the vestiture slightly abraded on the

prothorax and legs. The long third joint of the funiculus, the oblong-ovate antennal

club, the comparatively short, broad, truncated elytra, and the scattered white scales,

separate Z. disjecta from its allies. The outer teeth of the posterior femora are

shorter than in Z. tridentata and Z. sellata.

11. Gygops sellata, sp.n. (Tab. II. figg. 21, 21a, 2.)

Zygops sellatus, De}. in litt.

Oblong-ovate, rather broad, nigro-piceous, the antenne obscure ferruginous; variegated above with small

fulvous (or pale ochreous) and blackish scales, the fulvous scales on the prothorax mostly clustered along

the sides, in front of the scutellum, and down the centre, the blackish scales on the elytra more or less

condensed into a common transverse patch before the middle; the under surface and legs with intermixed

fulvous, cinereous, and brown scales, becoming paler down the centre, the posterior femora fusco-annulate

at about the middle. Eyes very large, almost contiguous in front; rostrum moderately long, arcuate,

rugosely punctate and feebly tricarinate at the base ; joint 2 of the funiculus nearly twice the length of 3,

3 as long as 4-7 united. Prothorax transverse, narrowed in front, feebly bisinuate at the base, the sides

parallel behind ; densely punctate. Elytra considerably wider than the prothorax, rather short, sub-

truncate at the apex ; finely punctate-striate, the interstices flat, densely punctulate, 1 finely granulate

throughout, and 3 with a few minute scattered granules. Legs rather short and stout ; posterior femora

tri- or quadri-, the others bi-, dentate.

Length 43-63, breadth 2-34, millim. ( 9.)

Hab. Guatemata, Senahu (Champion); Nicaracua, Chontales (Belt); Panawa,

Bugaba (Champion).—Sovuta Amurica, Cayenne, Brazil.

Four specimens. Very like Z. tridentata, but with a relatively longer third joint

to the funiculus (fig. 21 @), and the fulvous or ochreous scales on the prothorax mostly

condensed along the sides and down the middle, the elytra sometimes with a large,

ZYGOPS. 29

common, transverse, subquadrate dark patch on the disc. This insect seems to be a form

of the Z. sellatus of Dejean, which, according to Desbrochers, is synonymous with

Z. scutulata, Er., with the description of which it does not agree. The male of the

Brazilian Z. sellata has the first ventral segment shallowly depressed and not pilose.

12. Zygops tridentata. (7. impressiventris, Tab. II. figg. 22, 22a, 2? ;

22 6, hind leg.)

?. Zygops tridentatus, Gyll. in Schonh. Gen. Cure. iv. p. 621°.

3. Zygops impressiventris, Desbr. Ann. Soc. Ent. Belg. xxxv. p. 40’.

Var. Zygops semialbus, Boh. in Schénh. Gen. Cure. viii. 1, p. 28°.

Very like Z. sellata but with the prothorax sprinkled with white scales, the fulvous scales condensed into

various more or less confluent spots, both on the disc and at the sides, the elytra mottled with purplish-

brown, cinereous, and black scales, the under surface also mottled at the sides, cinereous down the

middle ; the third joint of the funiculus much shorter, about as long as the next two or three joints

united ; the prothorax sinuate at the sides, the ante-apical groove deep; the sutural interstice of the

elytra granulate throughout and a little raised; the ventral segments 1 and 2 broadly depressed down

the middle, and the depression on 2 thickly clothed with long, fine, erect brownish hairs, in the ¢; the

legs short and stout, the posterior femora tri- or quadri-, the others bi-, dentate.

Length 43-7, breadth 2-33 millim. (¢ 2.)

Hab. Mexico (Mus. Brit.), Toxpam (Sallé); Guaremata (Mus. Brit.), Teleman,

Chacoj, and San Gerénimo in Vera Paz, El Reposo, Las Mercedes, San Isidro, Cerro

Zunil, Volcan de Atitlan (Champion), Panzos, Coban (Conradt) ; Nicaragua, Chontales

(Belt); Costa Rica (Sallé); Panama, Bugaba, Volcan de Chiriqui (Champion).—Soutu

AmeERIcA, Colombia, Cayenne ! 2°.

Many specimens, varying greatly in size, about half of them from the Pacific slope

of Guatemala. The cluster of erect hairs on the depressed portion of the second

ventral segment of the male is a peculiar character, separating Z. tridentata from

most of the other short-legged Central-American forms. I have seen the types

of Z. tridentatus, Z. impressiventris, and Z. semialbus, and am unable to separate

them, the long series before me connecting the various forms. The markings on the

prothorax vary in extent, and the elytra are sometimes dark.

13. Zygops maculipes. (Tab. II. figg. 23, 9; 234, hind leg.)

2. Zygops maculipes, Desbr. Ann. Soc. Ent. Belg. xxxv. p. 40°.

Oblong, piceous, the antenne, the apex of the rostrum, and the tarsi more or less ferruginous ; variegated

above with small purplish-brown and cinereous scales, the latter condensed into three vitte on the

prothorax (the central one narrow, the others broad and often interrupted) and various small scattered

patches on the elytra, the elytra also more or less maculated with black, or with a blackish patch on

the middle of the disc near the suture; the under surface clothed with small, narrow, cinereous or

flavo-cinereous scales, spotted with brown along the sides, the legs cinereous, the posterior femora

sharply, and the others less distinctly, fusco-annulate at about the middle. Eyes very large, almost

contiguous in front; rostrum moderately long, rugulose and feebly carinate at the base; joints 2 and 3

of the funiculus slender, elongate, 3 one-half the length of 2 and about as long as 4-7 united. Prothorax

transverse, narrowed in front, the sides parallel at the base, the latter feebly bisinuate; densely, minutely

punctate. Elytra oblong, a little wider than the prothorax, obtuse at the apex; finely punctate-striate,

30 RHYNCHOPHORA.

the interstices flat, densely punctulate, 1 faintly granulate. Ventral segment 1 depressed down the

middle in the d. Legs rather short; femora bidentate.

Length 34-52, breadth 14-23 millim. (¢ @.)

Hab. Mexico (Mus. Holm.; Mus. Brit. ; Mus. Dresden), Toxpam in Vera Cruz (Sal/é) ;

Nicaragua, Chontales (Belt); Panama, Bugaba (Champion).—Soutuy America, Cayenne},

Brazil.

Thirteen specimens, agreeing with the type (2) communicated by M. Severin.

The long third joint of the funiculus, the trivittate prothorax, the mottled elytra, the

narrow scales of the under surface, which is spotted with brown along the sides, and

the almost equally bidentate femora, characterize Z. maculipes. The blackish-brown

annulus on the posterior femora is placed near the middle, instead of at the apex as in

Z. trivittata, Z. sobrina, and others. Z. cinctipes, Germ., is an allied form.

14. Zygops cataleuca, sp. n. (Tab. II. figg. 24, 9; 24a, hind leg.)

Zygops cataleuca, Chevy. in litt.

Oblong, black or piceous, the antenne obscure ferruginous ; thickly clothed with rather coarse scales: the

upper surface mottled with fulvous (or brownish), white, and black, the fulvous scales clustered into

spots along the sides and middle of the prothorax and into various patches on the elytra, the white scales

sprinkled over the disc of the prothorax and condensed into small patches on the elytra; the under

surface and legs (a blackish patch on the metathoracic episterna and another at the apex of the posterior

femora excepted) white. Eyes very large, almost contiguous in front; rostrum moderately long, arcuate,

rugulose and feebly carinate at the base; joint 2 of the funiculus nearly as long as 3-7 united, 3 about

twice as long as 4. Prothorax transverse, narrowed in front, feebly bisinuate at the base; densely,

minutely punctate. Elytra obleng, very little wider than the prothorax, obtuse at the apex; finely

punctate-striate, the interstices flat, densely punctulate, 1 finely granulate. Ventral segment 1 broadly

and shallowly depressed down the middle in the g. Legs rather short; anterior and intermediate

femora unidentate, the posterior femora bidentate, the inner tooth long, the outer one small, narrow,

and sometimes almost obsolete.

Length 47-64, breadth 13-24 millim. (¢ 9.)

Hab. Mexico (Mus. Holm. ; Mus. Brit.), Toxpam, Juquila (Sallé); Nicaragua,

Chontales (Janson).

Nine specimens, all but one from Mexico. Separable from Z. trivittata and

Z. sobrina by the less flattened elytra, the much coarser vestiture, and the blackish

patch on the metathoracic episterna. The small outer tooth on the posterior femora

is sometimes wanting. ‘The examples in the Sallé collection are labelled Z. cataleuca,

Chevr.

15. Zygops trivittata, sp.n. (Tab. II. figg. 25, ¢; 25, hind leg.)

Oblong, piceous, the antenne ferruginous; thickly clothed with small scales: the upper surface fuscous,

mottled with cinereous, the cinereous scales on the prothorax condensed into three interrupted vitte and

those on the elytra into numerous short longitudinal streaks, which are here and there transversely

coalescent, the under surface and legs almost entirely whitish, the posterior femora only with a large

blackish patch at the apex. Eyes very large, almost contiguous in front; rostrum strongly arcuate, not

extending beyond the intermediate coxa, unicarinate and rugulose at the base ; joint 2 of the funiculus

nearly as long as 8-7 united, 3 about twice as long as 4. Prothorax trausverse, subquadrate, narrowed

ZYGOPS. 31

in front, feebly bisinuate at the base ; densely, minutely punctate. Elytra oblong, very little wider than

the prothorax, flattened on the disc, subtruncate at the apex ; finely punctate-striate, the interstices flat,

densely punctulate, 1 obsoletely granulate. Ventral segment 1 shallowly depressed along the middle in

the g. Legs rather short ; posterior femora sharply bidentate, the others unidentate.

Length 51-54, breadth 2,4,-21 millim. (¢ 9.)

Hab. Nicaragua, Chontales (Belt).—Braziu (Mus. Brit.).

Four specimens from Nicaragua and one from Brazil, agreeing perfectly inter se *.

The dense, uniform, whitish vestiture of the under surface, the comparatively short

third joint of the funiculus, and the strongly bidentate posterior femora, separate

4. trivittata from the allied Central-American forms, Z sobrina excepted. From

Z. leucogaster, Desbr., the present species may be known by the larger cinereous

patches on the elytra, the sharply unidentate anterior femora, and the unicolorous

vestiture of the under surface +.

16. Zygops sobrina. (Z. minuta, Tab. II. figg. 26, 2; 26 a, hind leg.)

3. Zygops sobrinus, Gyll. in Schonh. Gen. Cure. iv. p. 622°.

Zygops minuta (Jekel), Desbr. Bull. Soc. Ent. Fr. 1890, p. exxvii”.

Very like Z. trivittata, but with the vestiture of the upper surface cinereous, fulvous, and black intermixed,

the cinereous scales sometimes predominating, these latter condensed into an interrupted submarginal

vitta or several spots on the prothorax and various small spots on the elytra, the black scales on the

elytra clustered into a small spot on each side of the scutellum, an irregular patch near the suture at

about the middle, and a few small scattered spots; the vestiture of the under surface dense and wholly

white, that of the legs also white, the posterior femora with a broad blackish or brown patch at the

apex above. The prothorax a little less parallel at the sides; the anterior and intermediate femora

unidentate, the posterior pair sharply bidentate, the inner tooth long, the outer one short and triangular ;

the first ventral segment broadly depressed down the middle in the ¢.

Length 4-5, breadth 13-24, millim. (¢ 9.)

Hab. Mexico, Toxpam, Juquila (Sallé); Panama, Tolé (Champion).—Sovutu AMERICA,

Cayenne *, Amazons 2, Brazil}.

Six specimens, all but one from Mexico, differing from the type of Z sobrinus in

having a distinct black spot on each side of the scutellum and a more deeply excavate

first ventral segment in the male. This insect is apparently the Z. minuta of Jekel,

to judge from a Cayenne example thus named in the Pascoe collection at the British

Museum ; Desbrochers, however, in his brief diagnosis ?, says nothing about the black

spot on either side of the scutellum (conspicuous in the paler individuals), nor does

he mention the dark patch at the apex of the posterior femora. The third joint of

the funiculus is short, as in Z. trivittata. The two teeth on the posterior femora are

sharp. ‘The vestiture of the under surface is uniformly white.

* In the British Museum there is a female specimen (without hind legs) of a nearly allied form

from “ Mexico,” with a longer and more slender rostrum, longer antenne, with a longer club, and spotted

metasternal side-pieces. There are others like it from Brazil, unnamed, in the F ry collection.

+ The type (@ ) of Z. leucogaster has three large, sharply-defined, blackish-brown patches along the sides of

the body beneath, the anterior femora obsoletely bidentate, &c.

32 RHYNCHOPHORA.

HYPOPLAGIUS.

Hypoplagius, Desbrochers, Ann. Soc. Ent. Belg. xxxv. p. 40, nota (1891) ; Heller, Abhandl. Mus.

Dresd. no. 11, pp. 3, 18.

The characters of this genus, described from an old mutilated specimen from

Cayenne, may be given thus :-—

Rostrum moderately stout, short, not longer than the head as seen in profile, depressed and slightly widened.

at the base, almost straight, the antenne inserted behind the middle, joints 1 and 2 of the funiculus

equal in length, 3 much shorter, not longer than 4, 6 and 7 transverse, the club small, acuminate-ovate,

its first joint shorter than the others united; eyes large, oval, somewhat angular below, separated in

front by fully half the width of the base of the rostrum, the intraocular space equal in width above and

beneath ; prothorax transverse, truncate in front, without ocular lobes; scutellum subtriangular, small ;

elytra oblong, obtuse at the apex; pygidium very short, covered by the elytra ; mesosternum flat, declivous,

the meso-metasternal suture straight and in a line with the middle of the widely-separated intermediate

coxe ; metasternum long; ventral segments gradually ascending, the sutures almost straight, the second

segment longer than 3 and 4 united; legs short, the posterior femora not reaching the apex of the

abdomen, all the femora sublinear and unarmed.

Hypoplagius includes a single species, peculiar to Eastern Mexico, Guiana, and

Brazil, so far as at present known. It is very like a small, short-legged Zygops, but

the pygidium is short and hidden, the rostrum and antenne are differently formed, the

femora are unarmed, &c.

1. Hypoplagius pectoralis. (Tab. IT. fieg. 27, 27a, b, 3.)

Hy, oplagius pectoralis, Desbr. Aun. Soc. Ent. Belg. xxxv. p. 40°.

Oblong, flattened above, convex beneath, opaque, nigro- or rufo-piceous, the legs reddish, the antenne

ferruginous ; thickly clothed above and beneath with minute, hair-like, yellowish-cinereous or fulvous

scales, the meso- and metasternum with coarser fulyous scales. Head rugulosely punctate, slightly

depressed between the eyes; rostrum finely carinate, rugulosely punctate in the ¢, more sparsely

punctate and shining at the tip in the 2. Prothorax constricted and narrowed in front, and also a little

narrowed behind, bisinuate at the base; densely, rugulosely punctate, not or faintly carinate. Elytra

oblong, a little wider than the prothorax; shallowly striate, the interstices almost flat and densely

rugulose.

Length 5-63, breadth 2-22 millim. (¢ 2.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé).—Soutnw America, Cayenne, Para.

Three immature specimens, agreeing with the type communicated by M. Severin, of

the Brussels Museum, and with others from Cayenne and Para in the British Museum.

No locality was given by Desbrochers !.

HELLERIELLA, gen. nov.

Rostrum about as long as the head and prothorax, feebly curved, cylindrical and rather slender, much widened

towards the base, sulcate along the sides beneath, the antennee inserted at about the basal fourth, joints

1 and 2 of the funiculus long, subequal in length, 3 and 4 much shorter, the club ovate, small, its basal

joint as long as the others united ; eyes large, separated by more than half their width as seen from

above, sinuato-acuminate below ; prothorax cylindrical, long, truncate at the apex, feebly sinuate at

the base, the ocular lobes almost obsolete; scutellum very small, convex; elytra comparatively short,

oblong-cordate ; pygidium not visible ; intermediate coxe narrowly separated ; mesosternum flattened ;

metasternum short ; ventral segments gradually ascending, 1 very long, 2 three times as long as 3 or 4;

HELLERIELLCA.—TIMORUS., 33

legs short and stout, the posterior femora not reaching beyond the second ventral suture; femora very

stout, clavate, deeply sulcate at the apex beneath, and each armed with a short triangular tooth; third

tarsal joint short, broadly bilobed, the claws very small.

This genus includes a remarkable form from Eastern Mexico, chiefly characterized

by its elongate cylindrical prothorax, narrowly separated intermediate cox, and short

stout legs. It is not very closely related to any of the genera enumerated or described

by Dr. Heller, after whom I have dedicated it.

1. Helleriella longicollis, sp.n. (Tab. IT. figg. 28, 28 a.)

Elongate, flattened above, moderately convex beneath, black, the rostrum (except at the base) and antennse

ferruginous; thickly clothed with small narrow scales, those on the under surface and on the first elytral

fascia coarser ; the head between the eyes, the prothorax with the sides, base, and apex, and a line down

the middle, and the elytra with the base and suture narrowly, a small spot at the apex, and a sinuous,

interrupted post-median fascia, whitish, with a few fulvous scales intermixed, each elytron also with a

broad, curved, fulvous fascia below the base, the rest of the upper surface blackish, the legs and under

surface entirely whitish. Head rugulosely punctate ; rostrum sparsely punctate and shining, the dilated

basal portion rugulose and squamose. Prothorax longer than broad, feebly constricted at the apex ;

closely punctate. FElytra a little wider than the prothorax, and less than twice its length, conjointly

rounded at the apex; densely rugulose, finely and shallowly punctate-striate. Ventral segment 1

slightly depressed down the middle.

Length 43, breadth 14 millim. (¢?)

Hab. Mexico, Vera Cruz (Sailé).

One specimen.

TIMORUS.

Timorus, Schénherr, Gen. Cure. iv. p. 680 (1838) ; Lacordaire, Gen. Col. vii. p. 154; Chevrolat,

Bull. Soe. Ent. Fr. 1879, p. Ixxi; Heller, Abhandl. Mus. Dresd. no. 11, pp. 4, 60.

This genus includes a few conspicuous Tropical-American forms, one of which has

been recorded from Mexico; the ljast-mentioned locality, however, requires confirma-

tion. Zimorus is related to Copturus, differing from it in the relative lengths of the

first two joints of the funiculus, the coarse vestiture, &c.

1. Timorus suturalis. (Tab. III. figg. 1, 1a, var.)

Timorus suturalis, Ros. in Schonh. Gen. Cure. iv. p. 681"; Lacord. Gen. Col. vii. p. 154, Atlas,

t. 74. figg.6,6a@*; Chevr. Bull. Soc. Ent. Fr. p. Ixxii*; Heller, Abhandl. Mus. Dresd.

no. 11, p. 60*.

Timorus tuberculosus, M. C., in Mus. Vind. Ces.’.

Timorus tuberculatus, Heller, loc. cit. p. 60 (sine descr.) °.

Hab. * Mexico ® §°,—Brazit !—,

Two specimens of a Jimorus in the Vienna Museum (kindly communicated by Custos

L. Ganglbauer), one labelled “ Brazil” and the other ‘“ Mexico,” seem to belong to

Rosenschoeld’s species, though they differ from Lacordaire’s figure of 7. suturalis, and

from the examples of that insect in the British Museum, in having the elytra more

strongly tuberculate. We take the opportunity of figuring the “ Mexican” specimen.

BIOL, CENTR.-AMER.. Coleopt., Vol. LV. Pt. 5, August 1906. FF

o4 RHYNCHOPHORA.

PHILEAS, gen. nov.

Antenne inserted at the middle of the rostrum, joints 1 and 2 of the funiculus equal in length, 3-7 shorter,

decreasing in length, the club ovate, with joint 1 about as long as the others united; rostrum stout,

arcuate, short, not longer than the prothorax as seen in profile; eyes oval, somewhat pointed beneath,

distant, the intra-ocular space widening upwards; prothorax short, deeply bisinuate at the base, truncate

at the apex, without definite ocular lobes, the basal lobe subtruncate ; scutellum exposed ; elytra about one-

half wider than the prothorax, sinuate at the base, blunt at the apex ; pygidium not visible; mesosternum

vertical, flat, the metasternum extending forwards between the coxe to meet it; ventral segments

ascending, 1 and 2 convex, 2 at the sides about as long as 3 and 4 united; legs short and stout; femora

unidentate, the intermediate and posterior pairs compressed, the posterior pair earinate on their outer

edge, tibial claw long and stout, third tarsal joint short, broadly bilobed, tarsal claws small; body robust,

sparsely squamose.

Type, P. granulatus.

A single species from the mountains of Western Mexico—the unique example of

which has been injured in an attempt to pin it, owing to its very hard integument—is

referred to this genus. The short rostrum, prothorax, and legs, the broad elytra, the

widely separated eyes, the shorter first joint of the antennal club, &c., separate it

from Timorus.

1. Phileas granulatus, sp.n. (Tab. III. figg. 2, 2a, d.)

Subovate, broad, robust, black ; the vestiture rather sparse and fine, denser and almost entirely ochreous on

the head, rufo-ferruginous on the prothorax and rostrum, and rufo-ferruginous intermixed with cinereous

on the other portions of the body, as well as upon the legs, the elytra each with an oblique yelvety-black

patch on the suture below the base (the two patches united forming a A-shaped mark) and a small black

spot in a line with the lower part of it near the margin, the latter preceded by an indefinite transverse

ochreous patch ; the intermixed cinereous scales on the elytra and under surface minute and hair-like,

the red scales small, oval, those on the prothorax elongate. Head densely punctate, depressed between

the eyes ; rostrum densely, rugulosely punctate to the tip, finely carinate down the middle. Prothorax

rather convex, strongly transverse, rounded at the sides, narrowed in front, densely, rugulosely punctate,

the anterior portion tubulate, the posterior portion sharply carinate. Elytra about one-half wider than

the prothorax, somewhat dilated at the sides below the base, and gradually narrowing thence to the

apex, flattened on the disc; with sinuous rows of small punctures, the interstices rugulose, more or less

raised, and subseriato-granulate (except near the anterior part of the suture), 3, 5, 7, and 9 rather more

prominent than the rest. Beneath and the legs densely, rugulosely punctate.

Length 6%, breadth 33 millim. (2?)

Hab. Muxtco, Omilteme in Guerrero 8000 feet (1. H. Smith).

LARIDES, gen. nov.

Antenne inserted at the middle of the rostrum, joints 1 and 2 of the funiculus equal in length, 3-7 short, the

club stout, ovate, with joint 1 as long as the others united; rostrum stout, arcuate, short, barely longer

than the prothorax as seen in profile ; eyes elliptic, distant, the intra-ocular space concave, subtriangular,

rapidly widening upwards ; prothorax short, feebly sinuate at the base and apex, with broadly rounded,

feeble, ocular lobes; elytra short, subtruncate at the base, blunt at the apex; pygidium not visible ;

mesosternum declivous, unimpressed ; intermediate coxe widely separated ; ventral segments ascending,

2 about as long as 3 and 4 united; legs short and moderately stout, femora unidentate, the intermediate

LARIDES.—CYLINDROCOPTURUS., 30

and posterior pairs compressed, tibial claw long, third tarsal joint short, broadly bilobed, tarsal claws

small; body elliptic, robust, squamose.

Type, L. cavifrons.

The single species referred to this genus is nearly related to Phileas, differing from

it in having the eyes less acuminate below and more widely separated above, the

antennal club shorter and relatively stouter, and the prothorax and elytra subtruncate

at the base.

1. Larides cavifrons, sp.n. (Tab. III. figg. 3, 3a, 3.)

Oblong, subovate, nigro-piceous, the antenne and the tips of the tarsi ferruginous; thickly clothed with small

pale brown and whitish scales, the prothorax and under surface with larger scales, the intra-ocular space

ochraceous, with a small fulvous spot on each side, the whitish scales on the elytra condensed into two

interrupted fascie, the posterior one subapical, the anterior one angulate and with an oblique ramus

extending forwards to the base of the second interstice, the triangular space between the common,

A-shaped mark and the short apical declivity fulvous spotted with black, the femora variegated with

whitish above. Rostrum rugulosely punctate to the tip, finely carinate. Prothorax about one-half

broader than long, rounded at the sides, narrowed and strongly constricted in front, the anterior lobe

tubulate, the posterior lobe rather convex and with a very sharp median carina in front; densely punctate.

Elytra wider than the prothorax, gradually narrowing from a little below the base, the produced apical

portion short, bluntly rounded ; finely punctate-striate, the interstices broad, 3, 5, 7, and 9 more or less

raised and undulate. Ventral segment 5 depressed in the middle at the apex.

Length 33, breadth 12 millim. (<.)

Hab. GvuateMa.a, Capetillo (Champion).

One specimen, in perfect condition.

CY LINDROCOPTURUS.

Cylindrocopturus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 4, 56 (1895).

Paratimorus, Heller, loc. cit. pp. 4, 58.

Copturodes, Casey, Ann. N. York Acad. Sci. ix. pp. 667, 669 (1897) *

A genus including numerous representatives from the Southern United States and

Mexico, and an aberrant form from Guatemala. The new species now added show

that Paratimorus cannot be retained, the longer and straighter rostrum of P. gangl-

bauert being a character of no importance and probably peculiar to the female sex.

The Mexican representatives, like those of North America, are densely clothed above

with coarse, overlapping scales, rounded on the elytra and oval or oblong on the

prothorax, which almost hide the sculpture. The unarmed femora &c. separate

Cylindrocopturus from Timorus. An allied monotypic genus, Gyrotus, with acute

post-ocular processes to the prothorax, has been described by Casey; it is from

California.

* The name Copturodes has already been sunk as a synonym, ¢f. Casey, Canad. Ent. 1904, p. 324.

FF 2

36 RHYNCHOPHORA.

a. Elytra separately produced at the apex, the apices truncate or dentiform

and often raised.

a’. Species larger, with moderately long legs. [Pararimorus, Heller. ]

a’. Elytral vestiture coarse and overlapping, the apices not produced

into a sharp spine.

a’. Elytra with scattered clusters of raised scales, forming tuberculi-

form promiuences, spotted; prothorax fulvous at the sides .

b*. Elytra without tuberculiform prominences, arcuato-fasciate,

the interstices here and there slightly swollen and _ setose ;

prothorax not fulvous at the sides . . . . . oo.

*, Elytra flattened, without raised scales or sete, the suture and

two oblique radiating lines on each side of it fulvous or white ;

prothorax i in great part fulvous . . 2 .

6°. Elytral vestiture sparse and fine, the apices produced into a sharp

point 2. 1 we ee ee ee es

b'. Species smaller, with shorter legs; elytral vestiture coarse and over-

lapping. [CyLinpRocopturus, Heller. |

c’, Second ventral segment with two conspicuous conical prominences*.

d®. Prothorax with a cluster of erect fulvous scales in front, the sides

broadly white ; elytra each with a triangular black patch on

the disc, the sides angularly dilated before the apex . . .

. Prothorax without erect scales in front, the sides with a broad

white patch behind ; elytra with a common /~-shaped pallid

line below the base, the sides not dilated near the apex

d’. Second ventral segment with the prominences indistinct or

wanting.

f°. Prothorax narrower than the elytra.

a’. Prothorax with a large white patch at the sides behind; elytra

with a common ~“\-shaped pallid line below the base, the

apices dentiform se ee

b*. Prothorax and elytra spotted with white, the elytra each with

a transverse fulvous patch below the base, the apices obhanely

truncate .

. Prothorax interr uptedly albo-trivittate, ‘the elytra with two

curved series of white spots, the apices truncate . .

g’. Prothorax and elytra subequal in width; prothorax albo-vittate

on each side, the elytra bifasciate Lee .

6. Elytra conjointly rounded at the apex, the interstices not wider than

the strive.

c'. Upper surface with large scales; elytra each with a transverse or

oblique black patch : larger, body elongate-elliptic . - 8

d’. Upper surface with smaller scales ; prothorax with a large pallid patch

at each angle ; elytra mottled : smaller, body oblong-elliptic .

ganglbaueri, Heller.

triangulifer, sp. Ni.

biradiatus, sp. n.

bicaudatus, sp. 0.

tetralobus, sp. n.

armatus, sp. 0.

wmbricatus, sp. n.

albonotatus, sp. n

adspersus, Lec.

bifasciatus, sp. n.

elongatus, sp. n.

scaphiformis, sp. n.

* Possibly a sexual character.

CYLINDROCOPTURUS. 37

1. Cylindrocopturus ganglbaueri. (Tab. III. figg. 4, 4a, 2.)

Paratimorus ganglbaueri, Heller, Abhandl. Mus. Dresd. no. 11, p. 58, tab. figg. 22, 44".

Hab. Mexico, Guanajuato, Orizaba (Sallé), Guadalupe, Chapultepec, &c. (Lilimeh,

Mus. Vind. Ces.").

We have three specimens of this species from the Sallé collection, agreeing with an

example communicated by Dr. Heller. It is a close ally of C. triangulifer, differing

from that insect in the more uneven upper surface, the fulvous sides of the prothorax,

&c. The prothorax has a more or less distinct, abbreviated, median carina. ‘The

examples seen are probably all females.

2. Cylindrocopturus triangulifer, sp.n. (Tab. III. figg. 5, 54,4, ¢ .)

Oblong-elliptic, flattened above, black, the antennew (the club excepted) ferruginous; the upper surface

variegated with a dense clothing of course, rounded, overlapping, cinereous (or white) and brownish

scales (fig. 5b), and also thickly set with short, coarse, erect sete: the elytra each with a transverse,

subtriangular, brown or blackish patch at about the middle of the disc, which is followed, and sometimes

preceded, by an oblique whitish line, the suture also whitish, the seriate punctures each with a narrow

scale, the elytral setze sometimes clustered into small fascicles ; the scales on the under surface paler, often

almost entirely white down the middle; the legs densely squamose and setulose. Eyes separated by fully

half their width as seen from above. Rostrum (<¢) strongly arcuate, not reaching beyond the anterior

cox, rugulosely punctate, unicarinate, and squamose to near the tip, (2 ) slightly longer and straighter,

and with the apical half or two-thirds bare, shining, and sparsely, very minutely punctate. Elytra

considerably wider than the prothorax, narrowed from about the basal third, transversely depressed at

the base and beyond the middle, the apices flattened and produced; finely punctate-striate, the outer

interstices somewhat convex. Ventral segments 1 and 2 broadly and feebly depressed down the middle,

and 5 subtruncate at the apex, in the ¢.

Var. The prothorax with three narrow whitish vitte ; the elytra each with a large velvety-black, transverse,

triangular patch, followed by a white line, the suture in great part white ; the short sete of the upper

surface mostly black.

Length 44-6, breadth 2,4,-2,% millim. (¢ 9.)

Hab. Mexico (Sallé), Omilteme 8000 feet (H. H. Smith), Tapachula (Hoge) ;

GUATEMALA, Duefias (Champion). |

Ten specimens, five of which are from Guatemala; the variety is from Omilteme.

Very like C. ganglbaueri, but with a shorter and more curved rostrum in the female,

the rostrum of the male not longer than in the species of the genus Cylindrocopturus

and squamose to near the tip, the upper surface setose, &c. The scales vary in colour:

the triangular, transverse, dark patch on the elytra, followed by an oblique whitish

line, is, however, characteristic. The antenne are inserted at the middle of the rostrum

in the male, and at a little nearer the base in the female.

3, Cylindrocopturus biradiatus, sp.n. (Tab. IT. figg. 6, 6a, 2.)

- Oblong-elliptic, flattened above, very convex beneath, black; the upper surface variegated with a dense

clothing of coarse, rounded, overlapping scales, the seriate punctures of the elytra each with a piliform

scale: the head and prothorax in great part fulvous, the prothorax with a triangular blackish patch on

the posterior portion of the disc, divided down the middle by a white line, the sides also with a white

38 RHYNCHOPHORA.

patch at the base beneath, the elytra black, with the apex, the suture thence to near the scutellum, and

a short streak at the base of the second interstice, fulvous, and two oblique, radiating streaks extending

outwards from the sutural stripe white, the under surface white, mottled with fulvous along the sides, the

legs fulvous and white intermixed. Head with a smooth raised line on the vertex; eyes well-separated ;

rostrum arcuate, reaching to a little beyond the middle coxe, rugulose and carinate at the base, and

sparsely, minutely punctate thence to the tip. Prothorax broader than long, abruptly narrowed and

constricted in front, the sides subparallel behind; densely punctate. Elytra a little wider than the

prothorax, slightly rounded at the sides, the humeri rather prominent, the apices raised and separately,

angularly produced; deeply punctate-striate, the interstices feebly convex, broader than the striae. Legs

moderately long.

Length 4, breadth 2 millim. (¢@.)

Hab. Mexico, Puebla (Sai/é).

One specimen, in perfect condition. This species may be known by the abruptly

narrowed, fulvous prothorax, which has a dark triangular patch on the disc, divided

by a white line, and the feebly bicaudate elytra, which have each two white lines

radiating from the fulvous sutural stripe.

4. Cylindrocopturus bicaudatus, sp. n. (Tab. III. figg. 7, 7a, 3.)

Oblong, flattened above, piceous, the antenne and rostrum more or less ferruginous; the elytra and legs

rather sparsely clothed with minute, hair-like, flavo-cinereous scales, the vestiture of the rest of the

surface coarser and denser, rust-red on the head and prothorax (the scales on the latter oblong-ovate,

transversely arranged, and not quite reaching the bare median streak), and almost wholly white or

ochreous beneath. Head densely punctate, the vertex with a smooth median line; eyes narrowly

separated, the intra-ocular space widening above and below; rostrum almost straight, about as long as

the head and prothorax, rugulosely punctate to the tip, a little longer and smoother in the 9. Prothorax

slightly broader than long, gradually narrowing from the base, feebly constricted in front; densely

punctate and obsoletely carinate. Elytra wider than the prothorax, arcuately narrowing from about the

middle, each armed with a long, upturned, spiniform process at the apex in a line with the second

interstice, the humeri somewhat swollen; shallowly punctate-striate, the interstices flat, densely rugulose,

the vestiture uniform with that of the stria. Legs moderately long.

Length 43-5, breadth 2,5, millim. (¢ Q.)

Hab. Guatemata, Capetillo, Zapote (Champion).

One pair. Separable from all its allies by the strongly bicaudate elytra, the vestiture

of which is sparse and fine, and the rust-red, transversely-arranged scales on the

prothorax.

5. Cylindrocopturus tetralobus, sp. n. (Tab. III. figg. 8, 8a.)

Oblong-elliptic, depressed above, black; the upper surface variegated with a dense clothing of coarse, rounded

overlapping scales, the seriate punctures on the elytra each with a hair-like scale: the head fulvous ; the

prothorax with the sides broadly, and two transverse interrupted fascia extending across ‘the middle

white, the rest of the disc brown, the anterior iobe fulvous and with a cluster of erect, similarly-coloured

scales in the centre; the elytra variegated with fulvous and white (the white scales mostly condensed into

a cruciform patch at the middle of the suture and a small spot on the shoulders), and each with a sharply-

defined triangular black patch at the middle of the disc, the fifth interstice at its point of termination ee

the apices, each with a cluster of semierect fulvous scales ; the under surface and legs white, with aioe

fulvous scales intermixed. Head with a fine median carina ; eyes well separated

; rostrum reachi

; ; , ng to

the middle of the intermediate cox, rugulose and carinate at the base. :

Prothorax transverse, constricted

CYLINDROCOPTURUS. 39

and narrowed in front, and also a little narrowed behind; densely, rather coarsely punctate. Elytra

slightly wider than the prothorax, somewhat rounded at the sides, transversely depressed at the base and

uneven thence to near the apex, the apices raised and separately produced, angularly dilated at the sides ;

finely punctate-striate, the interstices rather convex. Second ventral segment with two conical squami-

gerous prominences at the apex. Legs short.

Length 3}, breadth 14 millim.

Hab. Mexico, Colima City (Hoge).

One specimen, apparently a female, the ventral tubercles notwithstanding. The

tuft of erect fulvous scales at the middle of the anterior margin of the prothorax, the

bilobate apex of each elytron, and the cluster of erect fulvous scales at the apex of the

fifth interstice, separate C. tetralobus from C. armatus.

6. Cylindrocopturus armatus, sp. n. (Tab. III. figg. 9, 9 a.)

Oblong-elliptic, flattened above, black; the upper surface with a dense clothing of coarse, overlapping, oval

and rounded scales, the seriate elytral punctures each with a narrow piliform scale: the head brown,

spotted with white, the prothorax brown, variegated with fulvous and white, and with a large, broad,

subquadrate, white or fulvous patch on each side behind, the elytra brown, variegated with fulvous, black,

and white, the white scales condensed into a transverse spot at the shoulder, a short streak behind the

scutellum, a common transverse line on the interstices 2-4 at about one-third from the apex, a rather

large lateral spot opposite the first ventral segment, and another at the apex, the fulvous scales condensed

into an oblique streak on the disc below the base (extending outwards from the scutellar spot to the

fifth stria), which is followed by a blackish triangular patch; the vestiture of the under surface and legs

fulvous and white intermixed. Eyes well-separated; rostrum rugulose and subcarinate at the base.

Prothorax transverse, narrowed and strongly constricted in front; densely punctate. Elytra slightly

wider than the prothorax, somewhat rounded at the sides, the apices thickened and separately produced ;

finely punctate-striate, the interstices feebly convex. Second ventral segment with two conical squami-

gerous prominences at the apex. Legs short.

Length 3-33, breadth 14-12 ‘millim.

Hab. Mexico, Amula and Chilpancingo in Guerrero 4600-7000 feet (H. H. Smith).

Two specimens, perhaps male and female, one having the rostrum a little smoother

than the other. This insect agrees very nearly with the description of C. mammitllatus,

Lec., from Southern California, differing from it in having a common, fulvous and

white, “-shaped line on the elytra below the base and a transverse white line beyond

the middle, as well as in its smaller size, &c.

7. Cylindrocopturus imbricatus, sp.n. (Tab. III. fig. 10.)

Oblong-elliptic, flattened above, black; the upper surface variegated with a dense clothing of coarse, over-

lapping, oval and rounded, sordid-ochreous, whitish, and blackish-brown scales, the seriate elytral

punctures each with an arrow scale: the prothorax with a very large, rounded, whitish patch on each

side at the base, the elytra with a small, rhomboidal, blackish patch crossing the suture at one-third from

the base, preceded by a short, oblique, ochreous fascia, the suture in part, a small spot at the shoulder,

one on the fourth interstice towards the apex, another on the eighth nearer the base, and a transverse

lateral patch opposite the first ventral segment, white, the apices ochreous ; the vestiture of the legs and

under surface almost wholly whitish, the femora faintly fusco-annulate. Hyes narrowly separated in

front. Rostrum rugulose and finely carinate at the base, almost smooth thence to the tip. Prothorax

transverse, narrowed and constricted in front, and slightly narrowed behind; densely punctate. Elytra

somewhat rounded at the sides, the apices raised and separately produced, the third interstice terminating

40 RHYNCHOPHORA.

in a long, dentiform process ; deeply punctate-striate, the punctures of the strize becoming very coarse

towards the sides, the interstices feebly convex. Second ventral segment with two indistinct prominences.

Legs short.

Length 33, breadth 12 millim. ( 2.)

Hab. Mexico, Acapulco (fHége).

One specimen. ‘This insect, at first sight, was supposed by me to be the female of

C. armatus, but this cannot be the case: the eyes are more approximate in front, the

seriate punctures of the elytra are much coarser towards the sides, the apices are

dentiform, the vestiture is uniformly whitish beneath, the blackish rhomboidal patch

on the elytra is much smaller, &c.

8. Cylindrocopturus albonotatus, sp.n. (Tab. III. figg. 11.)

Elliptic, flattened above, nigro-piceous; the upper surface variegated with a dense clothing of oval and

rounded, overlapping, fulvous, white, and dark brown scales, the seriate elytral punctures each with a

narrow scale: the head fulvous; the prothorax fulvous, with a large subquadrate patch on each side

behind, extending obliquely inwards anteriorly, and a narrow, abbreviated, median vitta, white; the

elytra with a spot at the shoulder, another near the suture below the base, a sinuous, interrupted, post-

median fascia (extending forwards along the suture), and the apex, white, and a short transverse fascia

on the disc below the base (in a line with the first white spot) fulvous; the vestiture of the under surface

and legs white, the femora faintly fusco-annulate. Eyes rather narrowly separated, the intra-ocular space

widening above and beneath. Rostrum rugulose and feebly carinate at the base. Prothorax transverse,

constricted and narrowed in front, the sides parallel behind; densely punctate. Llytra a little wider

than the prothorax, rounded at the sides, the apices raised and separately, angularly produced; deeply

punctate-striate, the interstices narrow, raised, about as wide as the striz. Legs short.

Length 33-32, breadth 13 millim.

Hiab. Mexico, Toxpam in Vera Cruz (Sallé), Cordova (fége).

Two specimens, one of them in perfect condition. ‘The short, transverse (not

oblique), fulvous fascia on the disc of the elytra below the base, the somewhat

tricruciate white sutural stripe, and the subquadrate large white patch on each side of

the prothorax at the base, and the white under surface, distinguish C. albonotatus.

The scales are smaller than in C. tmbricatus.

9. Cylindrocopturus adspersus. (Tab. III. fig. 12.)

Copturus adspersus, Lec. Proc. Am. Phil. Soc. xv. p. 262°.

Cylindrocopturus adspersus, Heller, Abhandl. Mus. Dresd. no. 11, p. 57’.

Copturodes adspersus, Casey, Ann. N. York Acad. Sci. ix. pp. 670, 672°.

Hab. Nortu America, Colorado®, Texas!, and Arizona*.—Mexico, Northern

Sonora (Morrison).

Sent to us by Morrison as from Sonora, and by Wickham from Utah, Colorado, and

Texas (Brownsville). ‘The white spots on the prothorax are sometimes coalescent into

three vitte; the two curved series of white spots on the elytra vary somewhat in

extent, the intervening portion of the suture being bordered with white.

CYLINDROCOPTURUS. 41

10. Cylindrocopturus bifasciatus, sp. n. (Tab. III. fig. 13.)

Oblong-elliptic, narrow, flattened above, black, the rostrum reddish; the upper surface variegated with a

dense clothing of overlapping, oval and rounded, brown, ochreous, and whitish scales, the seriate elytral

punctures each with a hair-like scale: the prothorax with a spot in the middle at the base and a sinuous

vitta on each side white, the elytra each with a conspicuous spot at the base of the seventh interstice, a

rather broad curved fascia at about the basal third, a short transverse fascia beyond the middle, a spot at

the apex, and an oblique lateral patch opposite the first ventral segment, white or ochreous ; the under

surface and legs with intermixed brownish and white scales. Eyes well-separated. Rostrum arcuate,

rather coarsely punctate, carinate and rugulosely punctate at the base. Prothorax as wide as the elytra,

not much broader than long, somewhat rounded at the sides, narrowed and constricted in front and

slightly narrowed behind; densely punctate. Elytra subparallel at the base, the apices obtuse and slightly

produced ; finely punctate-striate, the interstices feebly convex. Legs short.

Length 3, breadth 1} millim. (¢.)

Hab. Mexico, Durango City (Champion).

One specimen. Differs from the other Mexican forms in having the prothorax and

elytra almost equal in width. ‘The submarginal white vitte on the prothorax extend

on to the base of the elytra; the arcuate fascia on the latter is ochreous, becoming

white towards the suture.

11. Cylindrocopturus elongatus, sp.n. (Tab. III. figg. 14, 144, 6, 3.)

Elongate-elliptic, flattened above, black; the upper surface variegated with a dense clothing of coarse, rounded,

overlapping, whitish, black (or fuscous), and fulvous scales, the blackish scales condensed on each elytron

into a broad transverse or oblique fascia at about the middle of the disc and an irregular fascia between

this and the apex, the seriate punctures each with a narrow scale ; the vestiture of the under surface and

legs coarse, dense, and whitish, the femora more or less fusco-variegate along their outer half. Eyes

very narrowly separated in front, the intra-ocular space widening upwards. Rostrum (<¢) arcuate,

carinate, rugulose, and squamose to about the middle, and finely punctate thence to the tip, ( @ ) a little

longer and smoother. Prothorax about as long as broad, gradually narrowing from near the base, feebly

constricted in front; densely punctate. LElytra slightly wider than the prothorax, oblong-oval, the apices

conjointly rounded and slightly produced; deeply punctate-striate, the interstices equally convex

throughout, narrow, very little wider than the strix. Anterior cox with a conical prominence.

Length 44-53, breadth 14-25), millim. (¢ 92.)

Hab. Mexico, Acapulco, Chilpancingo, Iguala, Jalapa (H6ge).

Six specimens. Recognizable by its elongate form, long prothorax, and equally

convex elytral interstices, the latter not wider than the strie. The interrupted blackish

fasciee of the elytra are sharply defined.

12. Cylindrocopturus scaphiformis, sp.n. (Tab. III. fig. 15.)

Oblong-elliptic, narrow, flattened above, nigro-piceous or piceous, the antenne, tibie, and tarsi obscure

ferruginous; the upper surface variegated with a dense clothing of rounded, overlapping, fulvous, white,

and brown scales, the seriate elytral punctures each with a narrow scale: the prothorax with a fulvous

or whitish patch on each side at the base and apex, the elytra with a transverse fulvous patch on the

disc below the base, and an irregular dark fascia below it, the suture, base, and some transverse or

oblique marks towards the apex, whitish; the vestiture of the under surface in great part white, the

flanks of the prothorax fulvous in one specimen, the legs also white, the femora mottled with fulvous

above. Eyes narrowly separated, the intra-ocular space almost equal in width throughout. Rostrum

BIOL. CENTR.-AMER., Coleopt., Vol. 1V. Pt. 5, August 1906. GG

42 RHYNCHOPHORA.

carinate and rugulose at the base. Prothorax transverse, gradually narrowing from the base, feebly

constricted in front; densely, finely punctate. LElytra very little wider than the prothorax, somewhat

oval, the apices conjointly rounded ; deeply punctate-striate, the interstices narrow, raised. Legs short.

Length 23-3, breadth 14-14 millim.

Hab. Muxico, Chilpancingo (J/. H. Smith), Cuernavaca (Zége), Guanajuato (Sallé,

in Mus. Dresden).

Three specimens, varying a little in the colour of the scales. Smaller and less

elongate than C. elongatus, the scales smaller, the prothorax much shorter and more

finely punctate, the intra-ocular space narrower and almost equal in width, the elytra

without well-defined black patch on the disc.

ZY GOPSELLA, gen. nov.

Antenne: inserted near the middle of the rostrum, joints 1 and 2 of the funiculus equal in length, 3-7 short,

6 and 7 transverse, the club narrow, acuminate-ovate, with the first joint as long as the others united ;

rostrum arcuate, rather stout, extending to a little beyond the anterior cox, widened towards the base ;

eyes moderately large, well-separated, acuminate below; prothorax transverse, bisinuate at the base,

without ocular lobes; scutellum rounded; elytra rounded-triangular, separately lobate at the apex;

pygidium not visible; mesosternum flattened, declivous; mesothoracic epimera narrow, ascending ;

ventral segments ascending, 2 as long as 3 and 4 united; legs stout, femora each with a small tooth, the

posterior pair reaching to a little beyond the apex of the elytra and subcarinate on their outer edge,

tibial claw stout, tarsal claws minute.

Type, Z. ruficauda.

The single species from which the above characters are taken is nearly related to

Archocopturus, differing from it in the much smaller, inferiorly acuminate eyes, the

narrow, acuminate antennal club, and the equally unidentate femora. The prothorax

has a few reflected metallic-green spots, as in A. regalis.

1. Zygopsella ruficauda, sp. n. (Tab. III. figg. 16, 16 a.)

Elliptic, robust, nigro-piceous or black, the antennal scape, the first joint of the funiculus, and the apical lobes

of the elytra ferruginous ; above sparsely clothed with rather coarse, narrow, fulvous scales, the prothorax

with a few reflected metallic-blue and green spots arising from the punctures; the elytra each with an

arcuate median fascia, extending obliquely forwards to the base of the first interstice, a small patch near

the middle of the suture, the suture itself thence to the base, a sharply-defined oblong spot on the fourth

interstice at about one-third from the apex, and an indistinct humeral patch, white, the fulvous scales

subseriately arranged and condensed into a stripe along the posterior half of the suture; the under surface

with coarse, rounded, white scales, variegated with fulvous along the sides, the legs fulvous, mottled with

white. Head densely punctate, depressed between the eyes above, the latter separated by abeut one-

third of their own width; rostrum rugulose and subcarinate at the base, and sparsely punctate thence

to the tip. Prothorax much broader than long, rounded at the sides, narrowed and strougly constricted

in front; coarsely, densely punctate, the disc transversely convex and with a sharp, arcuate, median

carina. Elytra wider than the prothorax, conjointly rounded at the apex, the apices each armed with a

flattened, stout, blunt, dentiform process; crenate-striate, the interstices narrow, raised.

Length 24-3, breadth 13-13 millim.

Hab. GuateMaLa, Senahu in Vera Paz (Champion).

‘Two specimens, probably male and female. In this insect the white scales on

ZYGOPSELLA.—PHILENIS. 45

the basal portion of the elytra are condensed into a common sagittiform patch; the

metallic spots on the prothorax are almost wanting in one example.

ARCHOCOPTURUS.

Archocopturus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 4, 56 (1895).

The type of this genus is A. regalis (Boh.), a common and widely distributed insect

in Tropical America. Its chief characters are :—The very large appproximate eyes,

separated by a narrow lanciform space above, the basally widened rostrum, the

subequal first and second joints of the funiculus, the narrow antennal club, with

rather long second joint, and the sharply unidentate posterior femora. The prothorax

is variegated with brilliant metallic-green. |

1. Archocopturus regalis. (Tab. III. fig. 17.)

Copturus regalis, Boh. in Schénh. Gen. Cure. viii. 2, p. 105’.

Archocopturus regalis, Heller, Abhandl. Mus. Dresd. no. 11, p. 56’.

Zygops ornaticollis, De}. in litt.’.

Zygops viridicollis, Desbr. in litt.*.

Hab. Mexico, Toxpam in Vera Cruz (Sallé); GuatEMaLa, Pantaleon, Pacific slope

(Champion); Nicaraeua, Chontales (Belt); Panama, Bugaba, Tolé (Champion).—

SoutH AMERICA, Cayenne! *, Amazons ?, Peru ?, &c.

PHILENIS, gen. nov.

Antenne inserted near the base of the rostrum, joints 1 and 3 of the funiculus subequal in length, 2 about

one-half longer than 1, 4—7 decreasing in length, 7 transverse, the club small, narrow, acuminate-ovate,

with its basal joint scarcely so long as the others united, the second joint half the length of the first ;

rostrum rather slender, almost straight (curved in P. fuscofemorata), depressed at the base, flattened at

the tip; head small, the eyes large, elliptic, subcontiguous, and occupying the whole of the front of the

head; prothorax transverse, subconical, bisinuate at the base, truncate at the apex, without ocular

lobes, the median lobe truncated ; scutellum small, exposed; elytra rounded-subquadrate, much wider

than the prothorax; pygidium covered or narrowly exposed; mesosternum subvertical, separated from

the sloping anterior portion of the metasternum by an arcuate suture; mesothoracic epimera broad,

ascending; ventral segments ascending, 2 as long as 3 and 4 united; posterior femora extending to a

little beyond the apex of the elytra, feebly unidentate, without carina on their outer face, the two other

pairs unarmed.

Type, P. flavipes.

The two species belonging to this genus are closely related to Copturus, in its restricted

sense; but they differ from it in having the rostrum slender, scarcely widened at the

base, the antenne short and very slender, with a small, narrow, acuminate club,

the posterior femora only dentate.

1. Philenis flavipes, sp. n. (Tab. III. figg. 18, 18 a.)

Subovate, robust, flattened above, the head and prothorax in great part black, the scutellum and elytra brown,

the latter blackish towards the apex, the metasternum (except at the sides), the ventral segments

GG 2

44 RHYNCHOPHORA.

(3 and 4 excepted), rostrum, antenns, and legs testaceous ; densely clothed with small, narrow, piliform

scales: the head with a line behind the eyes, the prothorax with the apical margin, a sinuous basal, and

a transverse median, fascia (these markings connected at the sides and extending down the anterior part

of the flanks), and the elytra with an interrupted sutural stripe, two oblique fascie radiating from it, the

humeri, and apical margin, golden-yellow, the vestiture of the rest of the upper surface black or brown,

that of the legs and under surface yellow or yellowish-white. Eyes very large, subcontiguous. Rostrum

almost straight, rugulose and subcarinate at the base, smooth and shining thence to the apex. Prothorax

strongly transverse, subconical, the sides slightly rounded, the base deeply bisinuate ; densely, minutely

punctate, feebly carinate, the posterior lobe rather convex on the disc. Elytra narrowing from about

the middle, blunt at the apex; punctate-striate, the interstices convex, minutely punctate. Pygidium

narrowly exposed. Mesosternum unimpressed. Legs rather stout, the posterior tibie slightly widened.

Length 54, breadth 3 millim. (9?)

Hab. Panama, Bugaba (Champion).

One specimen, somewhat immature. Easily recognizable by the transverse golden-

yellow fascia on the prothorax and elytra, and the entirely pale legs, rostrum, and

antenne.

2. Philenis fuscofemorata, sp.n. (Tab. III. figg. 19, 19 a, 6.)

Subovate, flattened above, black, the elytra reddish-brown, each with a large, subtriangular, black patch near

the apex, the rostrum, antenne, tibia, and tarsi, the anterior face and apex of each femur, the meta-

sternum (except at the sides), and the first two ventral segments rufo-testaceous; thickly clothed with

small, narrow, piliform scales: the head, the prothorax with a broad space on each side and another

down the middle (leaving two sinuous black vitte on the disc), and the elytra with the basal margin, a

common, curved, interrupted fascia below the base (extending outwards to the fifth stria), a small spot

in a line with it on the ninth interstice, and a broad curved fascia at about one-third from the apex,

extending down the suture and sides to the tip (enclosing the large black patch), yellowish-white, the rest

of the vestiture of the upper surface black, that of the under surface and legs yellowish-white, the

dark portions of the femora excepted. Eyes large, narrowly separated. Rostrum arcuate, widened at

the apex, rugulose and subcarinate at the base, opaque and almost smooth thence to the tip. Prothorax

slightly broader than long, conical, the base obliquely cut off on each side; densely, minutely punctate,

subcarinate. Elytra narrowing from about the middle, the apices broadly and bluntly rounded ; punctate-

striate, the interstices convex, minutely punctate. Mesosternum slightly depressed in the middle.

Length 4%, breadth 24 millim. (d ?)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. This insect is less robust than P. flavipes; the eyes are smaller; the

prothorax longer, conical, obliquely cut off on each side at the base, and nigro-bivittate

on the disc: the basal fascia of the elytra is reduced in extent and not continued

forwards along the suture to the base ; and the femora are in great part black.

PQ:CILOGASTER.

Pecilogaster, Heller, Abhandl. Mus. Dresd. no. 11, pp. 3, 16 (1895).

Pecilogaster includes a single very handsome Tropical-American species. In this

genus the broad, deep mesosternal excavation is limited on each side by an oblique

ridge, the open rostral canal extending into the declivous anterior portion of the

metasternum ; the prosternum is armed with a conical tubercle behind each anterior

PHCILOGASTER.—EUZURUS. 45

coxa, and there is a similar tubercle on the coxa itself; and the knees are spined. The

vestiture of P. brevis is dense, vermilion-red, paler beneath, the prothorax and elytra

maculated with black.

1. Peecilogaster brevis. (Tab. III. figg. 20, 20a, b, var.)

Copturus brevis, Waterh. Cist. Ent. ii. p. 424°.

Pecilogaster brevis, Heller, Abhandl. Mus. Dresd. no. 11, p. 17°.

Pecilogaster longior, Heller, loc. cit. p. 16, tab. fig. 32 (antenna) *.

Hab. Costa Rica (coll. Faust?, in Mus. Dresd.); Panama, Volcan de Chiriqui

3000 feet (Champion).—CotomBia, Medellin } 2.

A single beautifully fresh specimen of this species was captured by myself in

Chiriqui. The types, both of which have the vestiture discoloured and _ partially

abraded, certainly appertain to one species, the black markings varying in extent,

both on the prothorax and the elytra. The eyes are more approximate in the Medellin

insect than in the other two examples seen.

EUZURUS, gen. nov.

Antenne rather stout, inserted at the basal third of the rostrum, joint 2 of the funiculus about twice as long as 1,

3-7 short, 6 and 7 transverse, the club ovate, 4-jointed, 1 shorter than the others united ; eyes narrow,

elliptic, acuminate below, separated by rather more than half their width; rostrum curved, widened at

the base, not extending beyond the middle coxew ; prothorax transverse, deeply sinuate at the base, without

ocular lobes, the basal lobe produced, rounded at the tip, filling the scutellar cavity ; scutellum not visible ;

elytra much wider than the prothorax, rounded-triangular, flattened on the disc, blunt at the apex, sharply

margined externally by the acute carina on the ninth interstice; mesosternum depressed, with two

sharp parallel ridges extending on to the depressed intercoxal portion of the metasternum, the latter

shallowly excavate between them, the rostral canal open behind; ventral segments abruptly ascending,

2 along the middle as long as 3-5 united, the first suture sinuate ; legs rather stout; femora compressed,

each with a long sharp tooth, carinate on both their inner and outer faces, the posterior pair not reaching

beyond the apex of the abdomen ; tibial claw stout; third tarsal joint broadly bilobed.

Type, Z. ornativentris.

This genus agrees with Zurus in having the scutellum hidden by the basal lobe of

the prothorax, but differs from it in the sternal structure—the rostral canal being open

behind in Luzurus, and limited on each side of the mesosternum by a sharp longitudinal

carina,—the narrow eyes, &c.

1. Euzurus ornativentris, sp. n. (Tab. III. figg. 21, 21a, 6.)

Subrhomboidal, broad, flattened above and very convex beneath, black, thickly clothed with minute scales :

the head ochreous, fulvous behind the eyes, with a black y-shaped mark on the vertex; the prothorax

with a broad patch on each side in front, extending down the flanks, rust-red, a narrow median vitta, a

spot near each hind angle at the base, a faint oblique streak between this and the median stripe, and

a line along the posterior edge of the red patch, ochreous or white, and two vitte down the middle,

and an oblique curved stripe on each side at the base (extending transversely down the flanks), black ;

the elytra with the basal half variegated with ochreous and black, the apical half with pale blue and

fulvous scales intermixed; the abdomen white, two longitudinal stripes on segments 2-5, extending

outwards along the anterior portion of 2, and the basal half of 1, black, 2 with a large rust-red patch on

46 RHYNCHOPHORA.

each side; the vestiture of the legs sparse, whitish, lineate or variegate with fuscous. Head with a

smooth line on the vertex ; rostrum rugulose, tricarinate and quadrisulcate at the base, the apical half

finely, rather closely punctate. Prothorax much broader than long, constricted in front, the sides rounded

behind and obliquely converging anteriorly ; densely, minutely punctate, the disc rather convex, carinate

to near the apex, and also with a transverse carina on each side behind the red patch. Elytra finely

seriate-punctate, the interstices 3, 5, 7, and 9 sharply and narrowly, and 2, 4, 6, and 8 more feebly

(except towards the base), costate, the ridges on 3 and 7 confluent posteriorly, that on 9 very prominent

and abruptly ending before the apex, the apices themselves thus appearing obliquely truncated.

Length 6,4,, breadth 32 millim.

Hab. Panama, Bugaba (Champion).

One specimen. <A remarkable insect, resembling Zygops rufomaculata in the colour

of the vestiture of the upper and under surfaces, but with the general facies of a

Eucopturus.

MICROZYGOPS, gen. nov.

Antenne inserted near the base of the rostrum, joint 2 of the funiculus elongate, fully one-half longer than 1,

three times the length of 3, 3 and 4 subequal in length, 5-7 short, 7 transverse, the club ovate, with its

first joint about as long as the others united; rostrum arcuate, thickened towards the base, extending to

just beyond the intermediate coxe, the tip received in a smooth deep cavity in the front of the metasternum ;

head somewhat exserted; eyes extremely large, contiguous in front, separated above by a rather broad

lanciform space; prothorax obliquely articulated to the mesothorax, cylindrical, strongly constricted in

front, bisinuate at the base, truncate at the apex, without ocular lobes, the basal lobe truncated ; scutellum

rounded ; elytra rounded-subtriangular, much wider than, and about twice as long as, the prothorax ;

pygidium not visible ; mesosternum very narrowly depressed at the base, the depression limited on each

side by a compressed tuberculiform prominence; mesothoracic epimera narrow and ascending; ventral

segments rapidly ascending, 2 nearly as long as 3 and 4 united; legs long and slender, the posterior pair

greatly elongated; femora deeply excavate near the apex beneath and the apex itself thickened, the

anterior and intermediate pairs with a small tooth, the posterior pair unarmed ; third tarsal joint narrowly

bilobed, the claws minute.

Type, M. negrofasciata.

The very long, slender legs, unarmed posterior femora, exserted head, cylindrical

constricted prothorax, large eyes, deeply excavate anterior portion of the metasternum,

&c., readily distinguish this interesting genus, based upon a single species from Chiriqui.

1. Microzygops nigrofasciata, sp. n. (Tab. III. figg. 22, 22a, 3.)

Oblong, ferruginous, the head, the base of the rostrum, the anterior half of the prothorax (except at the sides

in front), and a very broad median fascia on the elytra (which is widened towards the suture anteriorly ),

black ; somewhat thickly set with small narrow fulvous scales, the elytra with a line of white scales along

the anterior edge of the dark fascia, which is itself clothed with black scales; the lower portion of the

flanks of the prothorax white, the meso- and metasternal side-pieces, and the ventral segments 1 and 5,

also spotted with white; the vestiture of the legs fulvous, white at the base of the femora. Head

rugulosely punctate, finely carinate on the vertex; eyes distant from the prothorax above ; rostrum

rugose and strongly carinate at.the base, and sparsely, minutely punctate along the sides thence to the

tip. Prothorax nearly as long as broad; rugulosely punctate. LElytra flattened on the disc, bluntly

rounded at the apex, the humeri smooth and swollen ; punctate-striate, the interstices convex.

Length 3, breadth 17 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen.

ARACHNOMORPHA.—LISSODERES. 47

ARACHNOMORPHA, gen. nov.

Antenne inserted near the base of the rostrum, joints 1 and 2 of the funiculus equal in length, 3-7 short, the

club ovate, acuminate, with joint 1 as long as the others united ; rostrum arcuate, widened at the base,

about as long as the head and prothorax as seen in profile; eyes very large, occupying the whole of the

front of the head, somewhat acuminate below, very narrowly separated, the intra-ocular space wider and

lanciform above ; prothorax transverse, feebly sinuate at the base, without ocular lobes ; scutellum very

small, tuberculiform ; elytra short, heart-shaped, with rows of coarse punctures separated by sharp

ridges; pygidium not visible; mesosternum broad, flattened, gradually declivous; ventral segments

ascending, 2 shorter than 3 and 4 united; legs long, femora linear, unarmed, the posterior pair extending

far beyond the apex of the elytra and equalling them in length, tibial claw short, third tarsal joint

narrowly bilobed, tarsal claws very small.

Type, A. circumlineata.

Arachnomorpha includes an isolated form from Chiriqui. It is related to Mnemyne,

Pasc.

1. Arachnomorpha circumlineata, sp. n. (Tab. III. figg. 23, 23 a, b.)

Ovate, shining, black, the antenne in part ferruginous; the prothorax with a narrow stripe on each side,

which is continued along the sternal side-pieces and across the second ventral segment, and a posteriorly

widened median vitta, the elytra with a mesially interrupted sutural stripe, and the under surface

(ventral segments 3-5 excepted), clothed with coarse, oval, white, opalescent scales, the base of the

rostrum and the legs with small, narrow, hair-like, white scales. Rostrum sparsely, minutely punc-

tate, carinate and rugulose at the base. Prothorax much broader than long, somewhat rounded at the

sides, narrowed and feebly constricted in front; coarsely, closely punctate, smooth along the anterior

margin. Elytra coarsely crenate-striate, the interstices sharply and equally costate throughout. Beneath

rather coarsely punctate.

Length 23, breadth 12 millim.

Hab. Panama, Bugaba (Champion).

One specimen. In this insect the marginal line of coarse white scales on the prothorax

is continued right round the sides of the body beneath.

LISSODERES, gen. nov.

Antenne inserted at a little beyond the middle of the rostrum, joint 2 of the funiculus shorter than 1, 3-7

short, the club ovate, with joint 1 about as long as the others united; rostrum very stout, curved,

scarcely longer than the prothorax as seen in profile, explanate at the apex, the scrobes deep, rapidly

descending, and also continued forwards; mandibles stout, bifid at the tip; eyes very large, occupying

the whole of the anterior portion of the globose head, contiguous in front, narrowly separated above ;

prothorax subcylindrical, truncate in front, bisinuate at the base; scutellum rather large ; elytra short,

wider than the prothorax, broadly truncate at the apex; pygidium covered ; anterior coxe with a conical

tubercle; mesosternum declivous, unimpressed, the meso-metasternal suture straight ; mesothoracic epimera

narrow ; ventral segments ascending, 2 about as long as 3 and 4 united; legs rather slender, femora

linear, shallowly sulcate beneath, unarmed, the posterior pair as long as or longer than the elytra, tibize

compressed, the claw long, tarsi long, their third joint narrowly bilobed ; body oblong, in part glabrous

above.

Type, L. subnudus. |

The above characters are taken from a single species from Chiriqui. The cylindrical,

sparsely punctulate prothorax, the truncate, crenate-striate elytra, the short, stout,

apically widened rostrum, the linear, unarmed femora, and the almost glabrous, shining

upper surface, give it a peculiar facies.

48 RHYNCHOPHORA.

1. Lissoderes subnudus, sp. n. (Tab. III. figg. 24, 24 a, 6.)

Black or piceous, shining ; the prothorax with the base narrowly, the elytra with the anterior margin and an

elongate streak at the base of the second interstice, the under surface, and legs, sparsely clothed with

narrow, white, hair-like scales, the vestiture becoming denser on the lower part of the flanks of the

prothorax and on the mesothoracic epimera. Head minutely punctate; rostrum in one specimen (d ?)

closely punctate and feebly carinate, in the others (2?) smoother and not carinate. Prothorax about as

long as broad, slightly narrowing forwards, sparsely, finely punctate, except down the middle, or almost

smooth. Elytra rounded-subquadrate, depressed along the suture anteriorly, the humeri smooth and

somewhat swollen ; deeply crenate-striate, the interstices flat, minutely punctate near the suture, the

outer ones smooth and bare. Beneath finely, sparsely punctate.

Length 3143, breadth 13-2 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Three specimens, varying in size, in the length of the legs, and in the sculpture of

the rostrum and prothorax. The two smoother examples are probably females, and

the larger onea male. ‘I'he elytra have some very minute scales on the disc, in addition

to the narrow white scales near the base and suture.

PARAMNEMYNE.

Paramnemyne, Heller, Abhandl. Mus. Dresd. no. 11, pp. 3, 10 (1895).

In this genus, which was based upon three South-American species and includes

two others from our region, the rostral canal reaches the apex of the metasternum,

the eyes are well-separated above, the second joint of the funiculus is elongate, the

base of the prothorax and elytra is deeply sinuate, the prothorax itself is very short

and furnished with broad ocular lobes, the alternate elytral interstices are sharply

costate, &c.

1. Paramnemyne decemcostata, sp. n. (Tab. ITI. figg. 25, 25 a.)

Rhomboidal, piceous or rufo-piceous, the antenne and tarsi ferruginous ; sparsely clothed with small ochreous

scales, which are condensed into three narrow vitte on the prothorax and numerous small scattered

patches on the elytra, the elytra each with a transverse blackish patch on the disc before the

middle, extending from the first to the fourth stria, the femora fusco-annulate. Head densely punctate,

hollowed between the eyes. Prothorax about twice as broad as long, narrowing from the base,

constricted in front; rather coarsely, rugulosely punctate. Elytra subtriangular, convex, transversely

depressed below the base; deeply punctate-striate, the punctures somewhat distantly placed and

oblong in shape, 3, 5, 7, 8, and 9 * sharply costate, the ridge on 8 interrupted below the base. Femora

unidentate.

Length 4-47, breadth 21-23 millim.

Hab. Panama, Bugaba (Champion).

Fight specimens. Near P. arcana, Heller (=leseleuci, Jekel, in litt.), from Cayenne,

but smaller, the transverse black patch on the elytra less extended (not forming a

common arcuate fascia) and placed nearer the base, the vestiture sparser, the legs less

* Counting from the suture, not from the first stria.

PARAMNEMYNE.—MNEMYNURUS. 49

elongate. P. melanoscelis, Heller, from Colombia, the type of which has been

communicated by M. Severin for comparison, is larger and differently marked, and

wants the ridge on the eighth elytral interstice.

2. Paramnemyne pulchella, sp.n. (Tab. III. figg. 26, 26 a.)

Subovate, black, the antennx obscure ferruginous, the vestiture close and rather coarse, above and beneath :

the head and prothorax vermilion-red, the latter with an anchor-shaped patch on the disc and a space

along the sides almost bare; the elytra each with a rather broad, oblique, arcuate fascia extending from

the base of the second interstice to near the margin, a streak at the base of the sixth interstice, and two

others on the disc towards the apex, rosy-red, the suture in part and a streak at the middle of the seventh

interstice yellowish-white, the scutellum similarly coloured, the other portions black; the under surface

and legs white. Head densely punctate, the intra-ocular space depressed down the middle and arcuately

dilated on each side towards the vertex ; rostrum reaching the apex of the metasternum, rugulose and

finely carinate at the base; joint 2 of the funiculus very elongate, 3 about as long as 4 and 5 united.

Prothorax short, narrowing from the base, abruptly constricted in front; densely, rugulosely punctate.

Elytra rounded-triangular, transversely depressed on the disc below the base; rather coarsely punctate-

striate, the interstices 3,5, 7, and 9, and also 2 from the middle to the apex, very sharply costate. Legs

rather elongate, the posterior femora reaching beyond the apex of the abdomen; femora unidentate ;

posterior tibiz dilated and compressed, somewhat rounded along their outer edge.

Length 5, breadth 23 millim.

Hab. Guatemala, Teleman in the Polochic Valley (Champion).

One specimen. ‘This insect has longer legs than P. decemcostata, the posterior

tibiz are widened, the intra-ocular space is more dilated, the scales on the prothorax

(except upon the partially denuded spaces) and head are vermilion-red, the elytra are

differently marked, &c.

MNEMYNURUS.

Mnemynurus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 4, 54 (1895).

Several species of this genus, including the typical JZ. caloderes, occur within our

limits. ‘They are recognizable by their very elongate rostrum (which in the typical

forms nearly reaches the first ventral suture), long legs, strongly spinose knees, &c., as

well as by the bright rufous vestiture of the anterior portion of the prothorax *. The

various forms may be separated thus :—

a. Rostrum reaching to about the middle of the first ventral segment.

a’. Legs moderately slender; species larger.

a’. Prothorax conical, with the disc convex and strongly carinate . . caloderes, Heller.

6°. Prothorax flattened on the disc, not or feebly carimate.

a’. The transverse white fascia of the prothorax coalescent with the

short streak on the median lobe; the elytra not flavo-cinereo-

lineate at the base.

* A species of an allied genus, Balaninurus miniatus, Heller [Abhandl. Mus. Dresd. no. 11, pp. 53, tab.

fig. 39 (antenna) |, has been recorded from “ Mexico”; but there must be some mistake about the locality, the

unique type in the Brussels Museum being labelled “ Brésil.”

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, August 1906. HH

50 RHYNCHOPHORA.

. Prothorax rounded at the sides posteriorly . . . . . - - égnifer, sp. n.

iM Prothorax conical . . . . .- - oe ee phenicoderes, sp. DR.

b°. The transverse white fascia of the prothorax not reaching the short

streak on the median lobe; the elytra flavo-cinereo-lineate at

the base. . . . . .

b’. Legs very slender ; prothorax and elytra shorter, the white fascia on

the former straight, the dark fasciz of the elytra extending downwards

on to the ventral surface: species smaller .

6. Rostrum not extending beyond the apex of the metasternum ; prothorax

and elytra much as in M. peciloderes, the dark fasciz of the elytra not

extending downwards. . . . 2... ee ee ee ee

erythroderes, sp. Nn.

peciloderes, sp. n.

longispinis, sp. n.

1. Mnemynurus caloderes. (Tab. III. figg. 27, 27 a, ¢, var.)

Mnemynurus caloderes, Heller, Abhandl. Mus. Dresd. no. 11, p. 54, tab. fig. 20°.

Hab. Nicaracva, Chontales (Belt); Panama, Bugaba (Champion).—SovutH AMERICA,

Ecuador (Mus. Brit.), Cayenne 1, Amazons.

Four specimens, the one from Chontales wanting the fiery-red scales on the vertex,

and all differing from a S.-American type communicated by M. Severin of the Brussels

Museum, in having the rostrum ferruginous, the anterior and intermediate femora and

a very large humeral patch on the elytra rufo-testaceous or brown, the vestiture of the

sides of the meso- and metasternum in great part ochreous, and the prothorax a little

less gibbous on the disc posteriorly. There are similarly-coloured examples from

Ecuador and the Amazons in the British Museum. The anterior and intermediate legs

vary in colour.

2. Mnemynurus ignifer, sp.n. (Tab. III. fig. 28, ¢.)

Very like AZ. caloderes, but differing as follows :—The prothorax with the basal third (instead of a rhomboidal

patch on the disc behind) black in the g, wholly rufescent in the @, the vestiture of the anterior half

rufous; the elytra black at the base in the 2 ; the legs in part ferruginous. The eyes more distant

above, narrowly separated in front; the prothorax broader than long, more or less rounded at the sides

posteriorly, this being especially noticeable in the 2, the median carina faint, the disc less swollen

posteriorly ; the elytra less dilated at the sides below the base, the fifth interstice scarcely raised.

Length 6-77, breadth 3-4 millim. (¢ @.)

Hab. Mxxico, Mirador and Toxpam in Vera Cruz (Sailé).

Two specimens. ‘This is the Mexican representative of the southern WW. caloderes.

It has the smooth, stout ridge on the vertex equally prominent (though the median

carina of the prothorax is much less distinct); the eyes are less approximate above;

and the prothorax is more transverse, and rounded at the sides posteriorly. The

ventral segments 2-4 (as in M. caloderes) have two almost bare stripes down the

middle, which extend outwards along the base of 2; the apex of the fifth segment is

truncate in the middle in the male, and rounded in the female.

MNEMYNURUS. 51

8. Mnemynurus phenicoderes, sp. n. (Tab. III. fig. 29.)

Rhomboidal, piceous or reddish-brown, the legs sometimes ferruginous, the antenne testaceous, the vestiture

fine above: the head white between and behind the eyes, fulvous or red on the vertex ; the prothorax

with a narrow, sharply-defined, sinuous, white fascia behind the middle, which extends narrowly down

the centre of the median lobe to the base and is continued around the flanks beneath, the base itself

also bordered with white towards the sides, the anterior half carmine-red; the elytra brownish or

cinereous, the narrow cinereous scales here and there clustered into patches on the basal half of the dise

and along the sides ; the scales on the under surface white, ochreous at the sides of the metasternum,

the ventral segments 2-4 with two almost bare stripes, which extend outwards along the base of 2, 1 also

bare at the sides in front ; the legs cinereous or whitish, the femora fulvous at the base above. Head

densely punctate, except along the smooth raised median space on the vertex, the eyes well-separated

above ; rostrum nearly reaching the first ventral suture, rugulose and carinate at the base, and smooth

thence to the tip. Prothorax conical, about as long as broad, flattened on the disc; densely, rather

coarsely punctate, except along the smooth median line. Elytra somewhat cordate, blunt at the apex,

depressed along the suture; punctate-striate, the interstices rugulose, the inner ones flat, the outer ones

convex. Legs elongate; femora each with a small sharp tooth, the knees sharply dentate.

Length 54-64, breadth 23-27 millim.

Hab. Panama, Bugaba (Champion).

Five specimens. Smaller than JV. caloderes; the prothorax with a narrower, more

sharply-defined, white, post-median fascia, extending narrowly down the median lobe

to the base, the disc less convex, and the median carina almost obsolete; the eyes less

approximate above; the fifth elytral interstice not prominent. ‘The conical prothorax,

&e., separate WZ. phenicoderes from M. ignifer.

4, Mnemynurus erythroderes, sp. n. (Tab. III. fig. 30.)

Rhomboidal, black, the anterior half of the prothorax rufo-piceous, the antennal club and the tip of the

rostrum rufescent, the vestiture fine above: the head whitish between and behind the eyes, fulvous on

the vertex ; the prothorax with a short streak down the middle behind, a sharply-defined, transverse,

interiorly narrowed, post-median fascia on each side of it, extending around the flanks beneath, and a

space along the base, yellowish-white, the anterior half rust-red; the elytra brownish, mottled with

flavyo-cinereous, the flavo-cinereous scales condensed into interrupted lines or spots on the alternate

interstices at the base ; the scales on the under surface white, the ventral segments 2-4 with two almost

bare stripes, which extend outwards along the base of 2,1 bare at the sides in front, the metathoracic

episterna with the anterior portion also bare. Head densely punctate, except along the smooth raised

median space on the vertex, the eyes rather narrowly separated above ; rostrum nearly reaching the first

ventral suture, rugulose and carinate at the base, and smooth thence to the apex. Prothorax broader

than long, conical, slightly rounded at the sides posteriorly, somewhat flattened on the disc; densely,

finely punctate, and obsoletely carinate. Elytra subcordate, blunt at the apex, depressed along the

suture; punctate-striate, the interstices 5, 7, and 9 convex. Legs elongate ; femora each with a narrow

sharp tooth, the knees sharply dentate.

Length 5-54, breadth 23-3 millim.

Hab. Payama, Bugaba (Champion).

Two specimens. Very like UM. phenicoderes, but with the prothorax more finely

punctate, the whitish transverse fascia narrowing inwards and not reaching the short

median basal vitta, the vestiture of the anterior half rust-red; the elytra with the

alternate interstices interruptedly lineate at the base, 5, 7, and 9 raised; the under

surface with several bare dark spaces along the sides.

HH 2

52 RHYNCHOPHORA.

5. Mnemynurus peciloderes, sp. n. (Tab. IV. figg. 1, 1 a.)

Elliptic, nigro-piceous, the head and the front of the prothorax rufo-piceous, the antenne, rostrum, femora,

and tibie ferruginous; the vestiture rather coarse: the head between and behind the eyes white, carmine-

red on each side of the bare space on the vertex ; the prothorax with three transverse marks at the base,

and a narrow, straight, transverse fascia in front of this, connected along the middle with the central

basal spot, white, the anterior half carmine-red; the elytra with two irregular, undulate, transverse

fasciee (which become straighter and sharply defined on the flanks), the base, and an interrupted sutural

stripe, white, the other portions of the surface with a few minute brownish scales; the under surface

white, except on the four transverse almost bare spaces at the sides. Head closely punctate, the vertex

not carinate, the eyes almost contiguous in front and narrowly separated above; rostrum longer than

the elytra, nearly reaching the first ventral suture, carinate and rugulosely punctate at the base.

Prothorax much broader than long, obliquely narrowing from near the base, constricted in front ;

densely, finely punctate. Elytra short, subcordate, blunt at the apex, depressed along the suture

anteriorly ; rather finely punctate-striate, the interstices rugulose and almost flat. First ventral segment

with a shallow groove. Anterior cox with the inner portion dentiform. Legs very long and slender ;

femora each with a small, narrow tooth, the knees sharply dentate.

Length 34, breadth 13 millim.

Hab. Panama, Bugaba (Champion).

One specimen. ‘This species is smaller than its allies, and has the prothorax and

elytra shorter, and the legs much more slender; the white fascia on the prothorax is

straight and the white scales on the elytra are condensed into undulate fascie.

6. Mnemynurus longispinis, sp. n. (Tab. IV. figg. 2, 2a.)

Elliptic, short, black, the legs, rostrum, and antenne rufo-testaceous ; above thickly clothed with narrow

scales: the anterior half of the prothorax and a line behind the eyes above rust-red, the rest of the

surface white, with the exception of a faint transverse patch near the shoulder, a larger patch on the

outer part of the disc near the apex, and a transverse median fascia, which are more or less fuscous ;

the under surface closely set with coarser, oval, pure white scales, the legs with white, hair-like scales.

Head closely punctate, the vertex not carinate, the eyes very narrowly separated ; rostrum nearly reaching

the apex of the metasternum, rugulose and carinate at the base. Prothorax much broader than long,

narrowing from near the base, feebly constricted in front ; densely, finely punctate. Elytra subcordate,

blunt at the apex, depressed along the suture anteriorly ; punctate-striate, the interstices rugulose, flat.

Legs elongate, the posterior femora not longer than the elytra, the intermediate and posterior pairs each

with a small narrow tooth, the knees very sharply dentate.

Length 34, breadth 2 millim. (92?)

Hab. Panama, Bugaba (Champion).

Two specimens, one with the darker, partially denuded, elytral markings more

distinct than in the other. Very like MW. peciloderes, but with the rostrum not

extending beyond the apex of the metasternum, the legs a little less elongate, the

knees still more sharply dentate, the dark fasciz of the elytra less developed and not

extending downwards on to the ventral surface. The anterior femora are obsoletely

dentate or unarmed beneath. The rostrum is only a little longer than in Hoplocopturus

javeti and H. nigripes.

HOPLOCOPTURUS, 53

HOPLOCOPTURUS.

Hoplocopturus, Heller, Abhandl. Mus, Dresden, no. 11, pp. 4, 50, tab. fig. 4 (1895).

Under this genus, the type of which is Copturus armatus, Boh., are placed various

species agreeing in the following characters * :—

Mesosternum (as in Mremynurus) flattened, declivous, with a shallow transverse depression limited anteriorly

by an arcuate ridge (reduced to two short carine in H. costatipennis). Metasternum flattened

(H. leptopus, &c.), hollowed, or foveate between the middle coxe (H. elegans). Rostrum not reaching

beyond the middle of the metasternum. Joint 2 of the funiculus elongate. Posterior femora extending

beyond the apex of the abdomen (shorter in H. elegans and H. densus), carinate or not externally, the

inner apical lamella spiniform or acutely produced.

Hoplocopturus is connected with Mnemynurus by intermediate forms, and it can only

be separated therefrom by the shorter rostrum. The arcuate ridge on the mesosternum

distinguishes it from Copturus. The Central-American forms may be grouped thus :—

a, Rostrum reaching the middle of the metasternum ; femora unidentate . . . Species 1, 2.

6. Rostrum not (except in H. leptopus, 2) reaching the middle of the

metasternum.

a’. Femora bidentate; metasternum hollowed between the middle coxe . . Species 3-6.

é'. Femora unidentate.

a’, Head rather broad, with very large eyes: body oblong-rhomboidal or

elliptic.

a*, Metasternum hollowed between the middle coxe.

a‘, Elytra costate ; the arcuate mesosternal carina reduced to two short

ridges . 1 1 ee ee ee ee ee ee ee ee + Species 7.

b*. Elytra not costate ; the arcuate mesosternal carina complete. . . Species 8, 9.

b°. Metasternum foveate between the middle coxe: species very small . Species 10-18.

8°. Head smaller, the eyes not so large ; metasternum hollowed or flattened

between the middle cox: body subrhomboidal . . . . . . . . Species 14, 15.

1. Hoplocopturus javeti, sp. n. (Tab. IV. figg. 3, 3a.)

Copturus javeti, Jekel, in litt.

Oblong-rhomboidal, shining, piceous or rufo-piceous, the prothorax sometimes rufous, the antenne ferruginous 5

the vestiture sparse, fine on the elytra, coarser on the prothorax, ochreous or yellowish-white, condensed

into a line around the eyes, a line along the anterior margin of the prothorax, and a sinuous fascia

towards its base, the latter extending down the median lobe, the elytra with various interrupted denser

yellowish lines on the basal half and a narrow whitish sutural stripe; the under surface, a broad bare

space along the middle of the abdomen excepted, thickly clothed with coarse, oval, whitish scales, the

vestiture of the legs also white. Eyes very large, narrowly separated. Rostrum reaching to about

the middle of the metasternum, rugulose and sharply carinate at the base. Joint 2 of the funiculus

elongate, rather longer than 8 and 4 united, the latter subequal in length, each as long as 1, 5-7 short.

Prothorax somewhat convex, subconical, a little broader than long, with rounded ocular lobes; closely,

coarsely punctate, the punctures transverse and here and there confluent, a narrow space at the

base densely, finely punctate, the disc subcarinate. Scutellum small, tuberculiform. Llytra rapidly

* Copturus furfuraceus (Germ.) is included in Hoplocopturus by Heller, but it wants the transverse

depression at the base of the mesosternum.

54 RHYNCHOPHORA.

narrowing from a little below the base, the obliquely truncated humeri almost in a line with the sides of

the prothorax, the basal margin sharply raised; deeply punctate-striate, the interstices punctulate and

almost flat. Mesosternum subvertical, with a narrow transverse depression between the cox limited in

front by an arcuate ridge. Metasternum shallowly depressed down the middle. Legs very long, slender ;

femora unidentate, the anterior pair sometimes unarmed, the intermediate and posterior pairs carinate

externally ; knees with a sharp spine.

Length 5-74,, breadth 23-3? millim. (d 9.)

Hab. Guatemata, Las Mercedes, Pantaleon, Zapote, Teleman (Champion).—Sovtu

America, Cayenne, Amazons (lus. Brit.).

Six specimens from Guatemala, two from Cayenne, and one from the Amazons. ‘This

species is very like a Mnemynurus, but it has a shorter rostrum.

2. Hoplocopturus nigripes, sp.n. (Tab. IV. figg. 4, 4a, 8.)

Subovate, black, the antenne ferruginous; above thickly clothed with narrow scales: the anterior half of the

prothorax and a line behind the eyes carmine-red, the space between them white, the prothorax with a

narrow fascia near the base, extending down the median lobe, and the elytra with the base, two undulate

fascia, and an oblong patch on the suture at the apex, also white, the rest of the upper surface blackish,

the two blackish elytral fasciz extending downwards on to the side-pieces of the metasternum ; the

under surface closely set with coarser, oval, white scales, the legs with piliform, white scales. Head

broad, closely punctate, the eyes separated by a narrow space; rostrum reaching the middle of the

metasternum, rugulose and carinate at the base. Prothorax nearly twice as broad as long, obliquely

narrowing from the base, the anterior constriction indistinct ; densely punctate. Elytra short, rounded-

triangular, blunt at the apex; punctate-striate, the interstices rugulose, flat. First ventral segment

broadly depressed down the middle in the ¢. Legs moderately long, the posterior femora extending

beyond the apex of the abdomen; anterior and intermediate femora obsoletely, the posterior femora

distinctly, unidentate ; anterior knees feebly, the others sharply, dentate.

Length 3, breadth 13 millim.

Hab. Panama, Bugaba (Champion).

Two specimens. This insect resembles Mnemynurus longispinis, but it has the

rostrum and legs shorter and blacker, the eyes less approximate, the prothorax

shorter, the elytra with sharply-defined, complete, light and dark fascie, the latter

extending downwards on to the sides of the metasternum. The head is much broader

than in H. leptopus, H. varipes, and H. armatus.

3. Hoplocopturus quinquevittatus, sp.n. (Tab. IV. fige. 5, 5a; 56, meso-

sternum.)

Elliptic, flattened above, shining, black, the antenne ferruginous; the head with a line around eyes, the

prothorax with five narrow vitte (the outer ones scarcely visible from above), and the elytra with

the basal margin, the suture, two undulate transverse fascize on the disc, and a narrow streak at the apex

of the seventh interstice, yellowish-white, the rest of the vestiture of the upper surface sparse and

blackish; the under surface and legs with yellowish-white scales, the ventral segments 1-4 with a

broad space down the middle, 1 and 2 also with a space at the sides, and 5 entirely, infuscate or bare.

Kyes extremely large, very narrowly separated. Rostrum rugulose and carinate at the base. Joint 2 of

the funiculus as long as3—7 united. Prothorax much broader than long, narrowing from the base, feebly

constricted in front; closely, rather coarsely punctate, the punctures on the middle of the disc transverse.

Elytra oblong-cordate ; deeply punctate-striate, the interstices almost flat, rather sparsely, minutely

punctate. Meso- and metasternum depressed between the middle cox, the mesosternal depression limited

HOPLOCOPTURUS. 55

anteriorly by an arcuate ridge. Legs rather elongate, femora bidentate beneath (the outer tooth small),

the posterior pair carinate externally and extending beyond the apex of the elytra, the intermediate and

posterior knees spinose.

Length 63, breadth 3 millim.

Hab. Nicaracua, Chontales (Belt).

One specimen. . Very like Copturus quadricinctus, but a little more elongate, and

with longer legs, the prothorax 5-vittate, the elytra deeply striate, the interstices not

costate, the abdomen with a broad almost bare space down the middle, the femora

bidentate, the posterior knees with two sharp spines, the mesosternum with a trans-

verse, semicircular depression.

4. Hoplocopturus nubilus, sp. n. (Tab. IV. fig. 6.)

Subelliptic, moderately long, brown, the antenne ferruginous ; rather sparsely clothed with narrow scales: the

head with a line around the eyes, and the prothorax with an oblique vitta on each side and a less distinct

median stripe, ochreous, the elytra with a quadrate patch at about the middle of the suture, the suture

narrowly at the apex, and numerous indefinite spots or markings, ochreous, the rest of their vestiture

reddish-brown ; the under surface with oval and narrow ochreous scales, the vestiture of the legs similarly

coloured, the posterior femora with a broad dark annulus beyond the middle. yes very large, narrowly

separated. Rostrum carinate and rugulosely punctate at the base. Joint 2 of the funiculus elongate,

about as long as 3-6 united, 3 and 4 equal in length, 5-7 short. Prothorax broader than long, narrowing

from near the base, feebly constricted in front; densely, rugulosely punctate, and obsoletely carinate.

Elytra much wider than the prothorax, moderately long, gradually narrowing from near the base, the

sutural region depressed ; punctate-striate, the interstices rugulose and (except near the suture) convex.

Meso- and metasternum hollowed between the middle coxe, the mesosternal depression limited in front

by an arcuate ridge, the other depression foveiform. Legs moderately long; femora each with a sharp

triangular tooth and a minute tooth exterior to it, the posterior pair carinate externally and reaching to

a little beyond the apex of the abdomen ; intermediate and posterior knees each with a sharp spine.

Length 63, breadth 34, millim.

| Hab. Guatemaua, Senahu in Vera Paz (Champion).

One specimen. Near #. sulphureus, but larger and longer, the prothorax less trans-

verse and with a sharply-defined oblique vitta on each side, the elytra with numerous

indefinite markings and a quadrate sutural patch, their outer interstices convex, the

metasternal depression foveiform *,

5. Hoplocopturus sulphureus, sp. n. (Tab. IV. fig. 7.)

Subelliptic, opaque, piceous, the antenna and rostrum rufescent ; the vestiture close and fine: the head with

a line around the eyes, the prothorax with the sides broadly, and the elytra with a transverse mark on

the suture beyond the middle, another at the sides beyond this, the suture itself at the apex, and some

other faint scattered markings, sulphur-yellow, the rest of the upper surface brown, the under surface

uniformly sulphur-yellow, the legs flavo-cinereous, the intermediate and posterior femora with an almost

bare dark annulus tewards the apex. Eyes very large, subcontiguous. Rostrum carinate and rugulosely

punctate at the base. Joint 2 of the funiculus very elongate, about as long as 3-6 united, 3 as long as 1,

4 slightly longer than 3, 5-7 short. Prothorax short, narrowing from the base; densely, finely punctate

* We have another allied form from Chontales, but as the head is now missing the species cannot be

described. |

56 RHYNCHOPHORA.

and obsoletely carinate. Elytra punctate-striate, the interstices densely rugulose and almost flat.

Meso- and metasternum slightly hollowed between the middle coxe, the mesosternal depression limited

anteriorly by an arcuate ridge. Legs long and slender; femora bidentate, the outer tooth very minute,

the posterior pair without external carina ; intermediate and posterior knees each with a sharp spine.

Length 54, breadth 23 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. The vestiture of this insect is coloured very much as in Piazurus

sulphuriventris, except that the narrow yellow scales are not condensed above into

sharply-defined spots on both the prothorax and elytra. H. sulphureus approaches

fH, spinipes.

6. Hoplocopturus spinipes, sp.n. (Tab. IV. fig. 8.)

Subelliptic, dull, nigro-piceous, the rostrum rufescent, the antenne ferruginous; the vestiture close and fine:

the head with a line around the eyes, and the prothorax with three vitte, cinereous ; the elytra blackish,

with the suture, two undulate, interrupted fascie (one broad, basal, enclosing the smooth humeral callus,

the other, narrower, a little beyond the middle), and several small spots, cinereous; the under surface

with whitish, the legs with narrow cinereous, scales. Eyes very large, narrowly separated. Rostrum

carinate and closely punctate at the base. Joint 2 of the funiculus elongate, nearly as long as 3-6 united,

3 and 4 subequal, each about as long as 1, 5-7 short. Prothorax transverse, narrowing from the base ;

densely punctate. Elytra deeply punctate-striate, the interstices rugulose and almost flat. Meso- and

metasternum hollowed between the middle cox, the mesosternal depression limited anteriorly by an

arcuate ridge. Legs moderately long, rather slender; femora bidentate, the minute outer tooth distant

from the other, the posterior pair without external carina; intermediate and posterior knees each armed

with a very long, and the anterior knees with a shorter, spine.

Length 43, breadth 23 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Small, shorter, and duller than /7/. quinquevittatus, the vestiture not

so coarse, the markings more extended and not so sharply defined, the prothorax more

finely punctate, the elytral interstices densely rugulose, the legs shorter.

7. Hoplocopturus costatipennis, sp.n. (Tab. IV. figg.9; 9 a, mesosternum.)

Subrhomboidal, broad, shining, piceous, the antenne ferruginous ; mottled above with a sparse clothing of

whitish, fulvous, and brown scales, the white scales condensed into a small subcruciform patch at the

middle of the suture; the vestiture of the under surface coarse and whitish. Head with a smooth shining

space down the middle of the vertex; eyes very large, narrowly separated; rostrum rather stout,

rugulosely punctate and carinate at the base; joint 2 of the funiculus about as long as 3-6 united, 3 and

4 subequal in length, 5-7 short. Prothorax broader than long, rather convex, narrowing from the base,

strongly constricted in front ; coarsely, closely punctate and incompletely carinate. Elytra short, much

wider than the prothorax, subcordate ; coarsely punctate-striate, the interstices 3, 5, 7, and 9 very

sharply, and 4 feebly, costate. Meso- and metasternum depressed between the middle coxe, the shallow

transverse mesosternal depression limited on each side by a short oblique ridge. Legs moderately long ;

femora unidentate, the posterior pair reaching to a little beyond the apex of the elytra, the intermediate

and posterior pairs carinate externally and each armed with a narrow spine at their apex.

Length 6, breadth 32 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sa/lé).

One worn specimen. Recognizable by the broad, short, subcordate, sharply costate

HOPLOCOPTURUS. 57

elytra, with a small cruciform white patch at the middle of the suture, and the coarsely

punctate, rather convex prothorax. H. costatipennis has somewhat the facies of

Copturus marte, but the elytra are costate and much shorter, the mesosternum is

transversely depressed, &c.

8. Hoplocopturus ochreicollis, sp. n. (Tab. IV. fig. 10.)

Subrhomboidal, flattened above, black, the anteune, the tips of the tarsi, and sometimes the femora and tibize

in part, ferruginous, the basal half of the elytra (except at the sides) and the apical half of the rostrum

reddish ; above rather sparsely clothed with narrow scales: the head with a narrow line around the eyes,

and the prothorax with the sides broadly and a broad median vitta, ochreous ; the elytra with a twice

interrupted sutural stripe, two transverse fascie at the sides, and various interrupted, undulate fascize

crossing the disc, white, the intervening spaces black or blackish, the white scales often becoming almost

wholly ochreous on the anterior half of the disc; the under surface thickly clothed with larger white

scales, the fifth ventral segment with a dark patch in the centre, the vestiture of the legs also white, the

posterior femora with an oblique black band beyond the middle. Eyes very large, subcontiguous.

Rostrum rugulosely punctate and carinate at the base. Joint 2 of the funiculus as long as the next four

or five joints united, 5-7 very short or transverse. Prothorax short, narrowing from the base, densely,

rugosely punctate. Elytra rather short, rounded-triangular; deeply punctate-striate, the interstices

rugulose and almost flat. Meso- and metasternum depressed between the middle cox, the mesosternal

depression limited in front by an arcuate ridge. Femora sharply unidentate, the posterior pair about

reaching the apex of the abdomen, the knees with a long spine.

Length 37-43, breadth 14-23 millim.

Hab. Panama, Bugaba (Champion).

Eleven specimens, varying in size, in the colour of the vestiture of the basal half of

the elytra (the scales sometimes white and sometimes ochreous), and in the length

of the spine at the apex of the femur, this being short on the anterior pair in the

smallest example. The elytra are black at the sides and apex, and have two dark

patches on the suture, interrupting the sutural stripe. The differently marked elytra

and the obliquely banded posterior femora separate H. ochreicollis from H. basalis.

9. Hoplocopturus basalis, sp. n. (Tab. IV. fig. 11.)

Subelliptic, rather robust, black, the antennz and tarsi, and the basal half of the elytra, reddish or ferruginous ;

rather sparsely clothed with narrow scales: the prothorax with three broad, faint, ochreous vitte, the

elytra with the basal half ochreous and the apical half blackish, the apical two-thirds of the suture, a

short transverse band at the sides a little beyond the middle, and a narrow streak on the interstices 3

and 5 towards the apex, white; the vestiture of the legs and under surface also white. Eyes very large,

almost contiguous. Rostrum rugulose and sharply carinate at the base. Joint 2 of the funiculus as long

as 3-5 united, 4 twice as long as 3 and of the same length as 1, 5-7 very short. Prothorax short,

constricted and narrowed in front; closely, rather coarsely punctate. Elytra flattened, rounded-

triangular, the apices separately rounded at the sutural angle ; deeply striate, the strie finely punctate,

the interstices densely rugulose and almost flat. Meso- and metasternum depressed between the middle

coxee, the mesosternal depression limited in front by an arcuate ridge. Legs moderately long; femora

sharply unidentate, the intermediate and posterior pairs carinate externally, the latter reaching a little

beyond the apex of the abdomen; intermediate knees with a short, the posterior knees with a long,

spine.

Length 32, breadth 1,% millim.

Hab. Panama, Bugaba (Champion),

BIOL. CENTR.-AMER., Coleopt., Vol, IV. Pt. 5, October 1906. II

58 RHYNCHOPHORA.

One specimen. This insect has the basal half of the elytra reddish and clothed with

ochreous scales, and the apical half blackish, ornamented on the disc with short

white lines.

10. Hoplocopturus elegans, sp. n. (Tab. IV. fig. 12.)

Subelliptic, nigro-piceous, the elytra rufo-piceous, their apical margin, the antenna, the tip of the rostrum,

and the legs in part, rufo-testaceous ; the vestiture moderately close: the head with a line around the

eyes, and sometimes the base of the rostrum also, carmine-red ; the prothorax with three white patches

at the base, the anterior third or half carmine-red; the elytra sometimes with a darker fascia immediately

below the base extending outwards to the bare humeral callus, the suture, or a short streak at its base,

white, the striae with a single and the interstices with two or more rows of pale ochreous hair-like

scales; the under surface thickly clothed with coarse whitish scales, the vestiture of the legs also white.

Eyes almost contiguous in front, narrowly separated above. Rostrum rugulosely punctate and carinate

at the base. Joint 2 of the funiculus moderately elongate, as long as 3 and 4 united. Prothorax short,

gradually narrowed and feebly constricted in front; densely, rugulosely punctate, and faintly carinate.

Elytra deeply punctate-striate, the interstices narrow and feebly convex. Meso- and metasternum

excavate between the middle cox, the mesosternal depression limited anteriorly by an arcuate ridge,

the metasternal depression smooth and foveiform. Legs slender; femora each with an acute tooth, the

posterior pair without external carina, their apices acute or spiniform.

Length 23-23, breadth 1;4,-1j millim. (¢ Q.)

Hab. GuateMaLa, Cerro Zunil (Champion); Panama, Bugaba, Volcan de Chiriqui

(Champion).

Five specimens from Guatemala and seven from Chiriqui. This and the following

three forms are very closely related, but it is impossible to treat them as one species.

The foveate metasternum separates them from their allies. The spine at the apex

of the posterior femora varies in length.

11. Hoplocopturus scintillans, sp.n. (Tab. IV. fig. 13, 2.)

Very like H. elegans, but with three large metallic-blue patches at the base of the prothorax (instead of three

clusters of narrow whitish scales) ; the eyes somewhat widely separated above in the ¢, subcontiguous

in the 2; joint 2 of the funiculus as long as 3-5 united.

Length 23-3, breadth 14-13 millim. (¢ 92.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Five specimens. ‘The blue patches on the prothorax of this insect, as in Copturus

lamprothorax, are due to reflected light, and not to definite scales.

12. Hoplocopturus maria, sp.n. (Tab. IV. fig. 14, ¢.)

More robust than H. elegans; the head with a rust-red line around the eyes; the prothorax with three

triangular spots at the base and a line along the upper part of the flanks clothed with oblong-oval,

bluish-white scales, the anterior half with narrow rust-red scales, with a few white ones intermixed ;

the elytra with a transverse darker fascia immediately below the base and an oblong white spot on the

suture behind the scutellum, the rest of the vestiture ochreous or whitish; the ventral segments 3-5

with the sides and a space down the middle almost bare. Eyes somewhat widely separated above.

Joint 2 of the funiculus as long as 3-5 united. Prothorax rather coarsely punctate.

Length 2,9,, breadth 13 millim. (<.)

HOPLOCOPTURUS. o9

Hab. GuateMAaLa, Rio Maria Linda, Pacific slope (Champion).

One specimen.

13. Hoplocopturus densus, sp. n. (Tab. IV. fig. 15.)

Very like H. eleguns, but with the vestiture denser above, especially on the elytra: the line around the eyes

and the anterior half of the prothorax rust-red, the three large patches at the base of the latter white ; the

elytra with an interrupted angulate dark fascia just below the base, the suture with ashort whitish streak

behind the scutellum, the interstices each with three or more rows (two rows only on the disc in

H. elegans) of pallid hair-like scales; the whitish scales on the under surface narrower; the elytral

interstices flat, broader than the striz; the spines at the apex of the femora sharp.

Length 24, breadth 13 millim. (9.)

Hab. Guatemaa, Cerro Zunil (Champion).

One specimen. Perhaps an extreme form of ZH. elegans?

14. Hoplocopturus leptopus. (Tab. IV. fig. 16.)

Hoplocopturus leptopus, Heller, Abhandl. Mus. Dresd. no. 11, p. 51, tab. fig. 28".

Hab. Mexico, Toxpam in Vera Cruz (Sallé), Teapa (H. H. Smith), Orizaba},

Oaxaca’; GuatemaLa (Sallé), San Juan, Panima, and Chacoj in Vera Paz (Champion) ;

Costa Rica, Surubres near San Mateo, 250 metres, Pacific slope (Biolley).

Numerous specimens, varying a good deal in size and colour, the legs often entirely

rufo-testaceous. ‘The head is rather small, as in H. armatus (Boh.) and H. varipes.

The rostrum of the female sometimes reaches the middle of the metasternum. The

white scales on the elytra are condensed into two undulate fasciz and a narrow sutural

stripe, the latter being wanting in the allied H. varipes. The length varies from

24-4 millim.

15. Hoplocopturus varipes, sp. n. (Tab. IV. fig. 17.)

Subrhomboidal, shining, nigro-piceous or black, the tip of the rostrum, the antenne, the anterior and

intermediate legs, and the posterior tarsi (and in one specimen the posterior tibize also), rufo-testaceous

or ferruginous ; thickly clothed above with piliform scales: the head and prothorax fulvous (or whitish) ;

the latter with two darker patches on the disc and a transverse white line running outwards from each

of them (these lines extending forwards on the flanks), the elytra mottled with fulvous, white, and

black, the fulvous scales showing a tendency to form undulate fascise, the white scales condensed into a

small spot at the middle of the second interstice and another on the eighth towards the apex; the under

surface with coarser white scales, the vestiture of the legs sparse, white. Head comparatively small,

with a smooth space on the middle of the vertex, the eyes narrow; rostrum rugulosely punctate and

sharply carinate at the base ; joint 2 of the funiculus elongate, twice as long as 3, 3 slightly longer

than 1, the others very short. Prothorax short, rapidly narrowing from the base, constricted in front ;

densely, rugulosely punctate, and carinate. Elytra broad, rounded-triangular ; deeply punctate-striate,

the interstices punctulate and almost flat. Metasternum broadly flattened between the middle cox, the

mesosternum with a narrow transverse depression. Legs moderately long, slender ; femora feebly

unidentate, the posterior pair with a faint external carina, their knees with a sharp spine.

Length 43-44, breadth 23-8 millim.

Hab. Costa Rica, Caché and Irazu (Roger's).—Ecvapor, Paramba (coll. Fry),

II2

60 RHYNCHOPHORA.

Two specimens from Costa Rica and four from Ecuador, one only in good condition.

Larger than J. leptopus, the white markings on the prothorax reduced to a narrow

transverse line and those on the elytra to a few small spots.

COPTUROMIMUS.

Copturomimus, Heller, Abhandl. Mus. Dresd. no. 11, p. 63 (1895).

Dr. Heller referred two species to this genus, which is easily separable from

Copturus by the bare, impunctate, obliquely strigose area on the anterior femora, a

character not mentioned in his diagnosis. Various other forms are now added,

agreeing in the following characters :—

Joint 2 of the funiculus elongate, much longer than 1; meso- and metasternum flattened or transversely

depressed between the middle cox, the mesosternum without oblique ridges, the metasterna] depression

sometimes foveiform ; femora unidentate beneath, the posterior pair carinate or not externally, sometimes

(C. ochreonotatus) reaching a little beyond the apex of the abdomen, the anterior pair with a conspicuous

obliquely strigose area on their front face.

Copturomimus as thus defined includes most of the Central-American forms with a

coarsely or finely strigose area on the anterior femora, the others being here placed

under Copturomorpha. This peculiar sculpture of a portion of the surface of the

anterior femora has been noticed by Kirsch in Copturus musicus*, and he suggests

that it may be a stridulating-organ. It seems more likely, however, to judge from the

position of the antenne in various unset specimens before me, that it is used for cleaning

the sensitive portions of the antennal club. C. ce@ruleotinctus has long, fine, projecting

hairs on the anterior tarsi of the male.

Meso- and metasternum flattened between the middle coxe.

Posterior femora reaching beyond the apex of the abdomen ; all the tibiz more

orless dilated . 2... 2. ee ee ee ee ee ee ee). «Species 1.

Posterior femora not reaching beyond the apex of the abdomen; the tibiz not

or feebly dilated.

Elytra with the alternate interstices costate . . . . . . + « + «© « + ©Species 2, 3.

Elytra with flattened elytral interstices . . . . 1 . . « . « « « . Species 4-8.

Meso- and metasternum depressed between the middle coxet . . . . . . . Species 9,10.

1. Copturomimus ochreonotatus, sp. n. (Tab. IV. figg. 18, 18 a.)

Subovate, black, the tarsi ferruginous ; the prothorax with narrow, ochreous and fulvous scales scattered along

the sides and middle, and with three small patches of coarser scales at the base ; the elytra with a broad,

dense, transverse patch at the base (extending outwards to the sixth stria), a small spot at the middle of

the second interstice, a larger one on the seventh and eighth interstices at about one-third from the apex,

and a short streak on the suture near the tip, ochreous, the rest of their vestiture close and almost

entirely blackish-brown ; the under surface and the basal half of the femora with scattered white scales,

* Berl. ent. Zeitschr. 1875, p. 248.

7+ The Colombian (. ochrofasciatus, Heller, belongs to this section.

COPTUROMIMUS. 61

the apices of the femora and the tibie with narrow fuscous scales, Eyes very large, subcontiguous.

Rostrum reaching to a little beyond the middle coxe, closely punctate and carinate at the base. Joints

2-4 of the funiculus elongate, 2 nearly one-half longer than 3. Prothorax strongly transverse, slightly

rounded at the sides, narrowed and constricted in front; densely punctate and subcarinate. Elytra

broad, much wider than the prothorax, blunt at the tip, transversely depressed at the base ; with rows

of rather coarse oval punctures placed in shallow strizw, the interstices flat and rugulose. Meso- and

metasternum broad and flattened between the intermediate coxw. Legs rather long; femora feebly

unidentate beneath, the posterior pair reaching beyond the apex of the abdomen and without distinct

carina on their outer face, the area on the anterior pair large and very finely strigose; tibia widened and

compressed, the posterior pair broad and somewhat rounded along their inner and outer edges; tarsi

long and slender.

Length 63, breadth 3 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Recognized by the large, common, dense, transverse, ochreous patch

at the base of the elytra, the rather elongate hind legs, with dilated tibiz, and the very

finely strigose area of the anterior femora.

2. Copturomimus rufocinctus, sp.n. (Tab. IV. figg. 19; 19, ant. femur.)

Subovate, black, the anterior portion of the prothorax and the elytra in part rufo-piceous ; the vestiture of

the prothorax rather coarse, that of the rest of the upper surface very fine: the head with a complete

ochreous line around the eyes, the prothorax with the anterior half rust-red and a median vitta and a

large patch at each hind angle ochreous or white, the elytra with a common, transverse, angulate,

blackish fascia below the base (extending to the shoulders), and for the rest mottled with cinereous and

ochreous, the cinereous scales condensed into interrupted lines on the basal half of the interstices 1, 2, 4,

6, and 8 (a short streak at the middle of 2 conspicuous), each of the seriate punctures also with a small

scale; the under surface thickly clothed with coarse whitish scales, the ventral segments 2-4 with two

broad vitte down the middle, and 2 with a transverse space on each side, black and almost bare; the

legs with scattered, narrow, white scales. Eyes narrowly separated. Joint 2 of the funiculus very

elongate, about as long as 3-6 united. Rostrum reaching a little beyond the middle coxe, rugulose and

carinate at the base, and smooth thence to the tip. Prothorax much broader than long, narrowing from

the base, feebly constricted in front; densely, rugosely punctate. Elytra moderately long, narrowing

from a little below the base, blunt at the apex; finely seriate-punctate, the interstices 5,7, and 9

sharply, and 3 more feebly, carinate, the ridge on 7 and 9 merging into the prominent humeral callus.

Meso- and metasternum broad and flattened between the middle coxe. Femora sharply unidentate

beneath, the posterior pair carinate externally and not extending beyond the apex of the abdomen, the

area on the anterior pair somewhat coarsely strigose. Posterior tibiz rather broad.

Length 5-63, breadth 24-32 millim.

Hab. Panama, Bugaba (Champion).

Two specimens. Larger and broader than Copturus severint, Heller, from Colombia,

the elytra nigro-fasciate and interruptedly cinereo-lineate on their basal half, the rust-

red band on the prothorax extending downwards, the ventral segments 2-4 nigro-

bivittate, the anterior femora with a strigose area on its upper anterior face.

3. Copturomimus octocostatus, sp. n. (Tab. IV. fig. 20.)

Subovate, black, the elytra mottled with rufo-piccous, the tips of the tarsi ferruginous ; thickly clothed with

small, intermixed fulvous and cinereous scales, the cinereous scales condensed into two faint submarginal

vittee on the prothorax and various scattered patches on the elytra, the elytra also with an interrupted,

62 RHYNCHOPHORA.

transverse, sinuous fascia below the base, and a few small scattered spots, black; the vestiture of the

under surface coarser, ochreous, the ventral segments 3-5 almost bare, that of the legs fulvous and

cinereous intermixed. Eyes moderately large, narrowly separated. Rostrum carinate and rugulose at

the base. Joint 2 of the funiculus elongate, nearly as long as 3-9 united. Prothorax much broader

than long, narrowing from the base, strongly constricted in front; densely, rugulosely punctate, and also

carinate, the disc somewhat swollen. Elytra narrowing from a little below the base, blunt at the apex,

the apices distinctly explanate; rather coarsely seriate-punctate, the punctures distant one from another,

the interstices 5, 7, and 9 sharply, and 3 more feebly, costate, the ridges on 7 and 9 merging into

the humeral callus. Meso- and metasternum broad and flattened between the intermediate coxee. Legs

rather short; femora unidentate beneath, the posterior pair carinate externally and not reaching the

apex of the abdomen ; the area on the anterior pair coarsely strigose; tibic almost straight.

Length 6, breadth 3, millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. The cinereo-variegate, nigro-fasciate elytra, with sharply costate

alternate interstices and narrowly explanate apices, separate C. octocostatus from its

allies. It approaches the genus Copturosomus.

4, Copturomimus stridulans, sp. n. (Tab. IV. figg. 21; 21a, ant. femur.)

Subovate, short, robust, nigro-piceous, the antenne and the tips of the tarsi ferruginous; sparsely clothed

with small, narrow, ochreous and cinereous scales, which are condensed into three interrupted vitte on

the prothorax and various scattered. irregular, more or less confluent patches on the elytra (a small spot

near the apex of the eighth interstice usually conspicuous), the rest of the elytral surface with small

blackish or fuscous scales, these latter condensed into a common subquadrate patch before the middle of

the suture and a ~-shaped mark towards the apex; the vestiture of the under surface and legs sparse,

cinereous. Head sparsely, minutely punctate, the vertex without a smoother space in the middle; eyes

very large, narrowly separated; rostrum stout, carinate and rugulose at the base; joint 2 of the

funiculus elongate, longer than 3 and 4 united. Prothorax short, narrowing from near the base;

densely, rugosely punctate and feebly carinate. Elytra rounded-subquadrate, blunt at the apex; deeply

striate, the striw finely punctate, the interstices flat and rugose. Meso- and metasternum flattened and

unimpressed between the intermediate coxw. Legs short, stout; femora feebly unidentate beneath, the

posterior pair carinate externally, the area on the anterior pair large, depressed, and somewhat coarsely

strigose ; tibie almost straight.

Length 34-43, breadth 2-25 millim.

Hab. Panama, Bugaba (Champion).

Eleven specimens. Near C. cinereus, but with a shorter, rugosely punctate

prothorax, subtruncate elytra, which have a subquadrate blackish patch near the

middle of the suture, a larger strigose area on the anterior femora, and an unimpressed

mesosternum.

5. Copturomimus ceruleotinctus, sp. n. (Tab. IV. figg. 22, 22 a, b, ¢.)

Subovate, piceous or rufo-piceous, the prothorax black, rufescent at the sides or apex, the elytra each with

a large, outwardly narrowed, subtriangular patch on the basal half of the disc (sometimes reaching the

suture), a large patch before the apex, and a spot on the humeral callus, black, the rostrum, antenne,

and legs testaceous; the prothorax sparsely clothed with narrow ochreous scales, and sometimes with a

white median line in front, the posterior lobe with a metallic blue or green reflection; the elytra mottled

with fine, narrow, ochreous and whitish scales, and sometimes with a denser white patch at the sides

COPTUROMIMUS. 63

beyond the middle, the dark subapical patch with small black scales; the vestiture of the under surface

coarse and white, that of the legs also white. Eyes very narrowly separated. Rostrum rugulose,

squamose, and carinate at the base, reaching to a little beyond the middle coxe. Joint 2 of the

funiculus very elongate, longer than 3 and 4 united, 3 as long as 1. Prothorax short, somewhat rounded

at the sides, narrowed and constricted in front; densely, rather coarsely punctate. LElytra rounded-

triangular, blunt at the apex ; punctate-striate, the interstices flat and rugulose. Meso- and metasternum

flattened between the middle cox. Legs moderately long; femora with a minute tooth beneath (sometimes

almost obsolete), the intermediate and posterior pairs carinate externally, the area on the anterior pair

very finely strigose; the anterior tarsi, and the inner edge of the anterior and intermediate tibia,

clothed with very fine, long, pallid, projecting hairs in the ¢.

Length 2?-3,,, breadth 13-1, millim. (¢ 2.)

10?

Hab. Mexico, Toxpam in Vera Cruz (Sa/lé); Panama, Bugaba (Champion).

Two specimens from each locality. This insect, like Copturus lamprothoraz, has a

metallic-blue reflection on the posterior lobe of the prothorax. ‘The entirely pale legs

and rostrum, the peculiar markings of the elytra, &c., separate C. cwruleotinctus from

C. confluens. The examples with hairy legs are assumed to be males.

6. Copturomimus asperatus, sp.n. (Tab. IV. figg. 23; 23 a, anterior femur.)

Subovate, robust, piceous or nigro-piceous, the antenns ferruginous; sparsely clothed with ochreous scales,

those on the upper surface narrow and those on the under surface coarser, oval or rounded, the prothorax

and elytra with scattered bare spaces (a subquadrate patch before the middle of the suture usually

conspicuous). Eyes very narrowly separated. Rostrum rugulosely punctate and carinate to about the

middle, and finely punctate thence to the apex, smoother in the 9. Joint 2 of the funiculus as long as

8-5 united. Prothorax short, rounded at the sides, constricted and narrowed in front; coarsely,

rugosely punctate, and sometimes carinate. LElytra somewhat rounded at the sides, blunt at the tip;

punctate-striate, the interstices almost flat, rugulose, and subgranulate. Meso- and metasternum

flattened between the middle coxe. Legs short, rather stout; femora unidentate, the posterior pair

carinate externally, the area on the anterior pair oblique, concave, and rather coarsely strigose.

Length 24-4, breadth 13-24, millim. (¢ 2.)

Hab. Mexico, Jalapa (/ége) ; Panama, Bugaba (Champion).

Six specimens from Mexico, three from Panama. In this insect the vestiture is

almost entirely ochreous, and more or less condensed on the elytra into scattered

confluent patches, the spaces between which are almost bare; and the upper surface

is rather rough, the elytral interstices being subgranulate. ‘here is an allied unnamed

form from Brazil in the Fry Collection with a smaller and differently-shaped strigose -

area on the anterior femora.

7. Copturomimus sparsus, sp. n.

Subovate, piceous, the antenne and the apical margin of the elytra ferruginous ; above and beneath sparsely

clothed with narrow, hair-like, cinereous scales, which are condensed into three vitte on the prothorax

and an interrupted line on each elytral interstice, the elytra also with darker scales intermixed, these

latter condensed into a transverse, subquadrate patch on the suture at one-third from the base. Hyes

very large, almost contiguous. Rostrum stout, not extending beyond the middle coxe, finely punctate,

rugulose and finely carinate at the base. Joint 2 of the funiculus about as long as 3-5 united. Prothorax

short, somewhat rounded at the sides, narrowed and constricted in front; densely, rather coarsely

punctate and with a short median carina, LElytra punctate-striate, the interstices flat and rugulose.

64 RHYNCHOPHORA.

Meso- and metasternum flattened and unimpressed between the widely-separated intermediate coxe.

Legs short and rather slender ; femora unidentate, the posterior pair obsoletely carinate externally, the

area on the anterior pair rather large, concave, and finely strigose.

Length 3, breadth 13 millim.

Hab. Guatemaua, Cerro Zunil (Champion).

One specimen. Smaller and less robust than C. stridulans, the eyes almost

contiguous, the rostrum finely punctate to the tip, the legs more slender. The

cinereous scales on the elytra appear to be a little more crowded at the middle of the

first and second interstices.

8. Copturomimus brevicollis, sp. n.

Subovate, nigro-piceous, the elytra mottled with rufo-piceous, their apical margin, the rostrum, antenne, and

legs ferruginous ; the vestiture fine and rather sparse: the head between the eyes and the prothorax

ochreous, the latter with two bare spaces on the disc; the elytra mottled with ochreous and darker

scales, the ochreous scales condensed into a small transverse patch on the suture beyond the middle and

a narrow streak behind the scutellum; the under surface and legs sparsely clothed with narrow yellowish

scales. Eyes very large, narrowly separated above. Rostrum moderately stout, not reaching beyond

the middle coxee, rugulose and carinate at the base. Prothorax nearly twice as broad as long, rounded

at the sides, narrowed and constricted in front; densely, rugulosely punctate, and finely carinate.

Elytra deeply punctate-striate, the interstices flat and rugulose. Meso- and metasternum flattened

between the middle coxee. Legs short and rather slender; femora unidentate, the posterior pair carinate

externally, the area on the anterior pair rather large and finely strigose.

Length 22, breadth 13 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Very near the Guatemalan C. sparsus, but with the pallid scales

finer, ochreous in colour, and clustered into definite markings, the rostrum not so

stout, the prothorax shorter and more rounded at the sides, the eyes less approximate

above.

9. Copturomimus cinereus. (Tab. IV. figg. 24; 24 c.)

Copturomimus cinereus, Heller, Abhandl. Mus, Dresd. no. 11, p. 64°.

Hab. Mexico, Orizaba', Toxpam (Sallé), Jalapa, Cerro de Plumas (//ége); PANAMA,

Volcan de Chiriqui (Champion).

Six specimens of this species are before me, including one of the types. C. cinereus

agrees with the Colombian C. ochrofasciatus, Heller (a co-type of which I have seen),

in having the obliquely strigose area on the anterior femora small and partly hidden

by the vestiture. ‘he metasternal depression is rather deep.

10. Copturomimus confluens, sp.n. (Tab. IV. figg. 25, 25a, b.)

Subovate, black, the prothorax and elytra sometimes piceous, the antenna, rostrum, and tarsi more or less

ferruginous ; the vestiture rather fine above, coarse beneath: the prothorax with the sides broadly, and

a space along the middle, ochreous; the elytra with a rather broad basal, median, and apical fascia

(extending outwards to the sixth stria), connected along the suture, and a transverse patch behind the

COPTUROMIMUS.—COPTUROMORPHA. 65

bare humeral callus (connected with the first two fascize), ochreous, and a spot at the sides towards the

apex white, the rest of their surface with blackish scales; the under surface thickly clothed with oval

white scales, the legs with narrow white scales. Eyes very large, subcontiguous. Rostrum rugulose

and carinate at the base. Joint 2 of the funiculus elongate, as long as 3 and 4united. Prothorax short,

gradually narrowing from the base; densely, finely punctate. Elytra short, rounded-triangular, blunt

at the tip; punctate-striate, the interstices flat and rugulose, the humeral callus smooth. Meso- and

metasternum slightly depressed between the intermediate coxw. Legs short; femora feebly unidentate

beneath, the two posterior pairs carinate externally, the area on the anterior pair very finely strigose ;

tibize almost straight.

Length 23-3, breadth 12-12 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sallé); Panama, Volcan de Chiriqui

(Champion).

Six specimens from Panama and two from Mexico, the latter somewhat worn. A

small species, with three vittee on the prothorax, and three transverse fasciz on the

elytra, ochreous, the fascize connected by a whitish or cinereous sutural stripe, the

elytra also with a white spot at the sides towards the apex.’ The allied C. ochro-

fasciatus, Heller, is very much larger, and has a diamond-shaped ochreous patch on

the disc of the prothorax and the elytral fascia disconnected, the elytra themselves

more finely striate.

COPTUROMORPHA, gen. nov.

Joint 2 of the funiculus not or very little longer than 1; mesosternum in the typical forms excavate and with

the excavation limited on each side by an oblique ridge; metasternum usually more or less hollowed

between the middle coxe; ventral segments rapidly ascending; legs short; femora not or obsoletely

dentate beneath *, the anterior pair with an inconspicuous or faint, impunctate, finely strigose area on

their front face.

Type, C. interrupta.

The species referred to this genus (which will probably include Copturus musicus,

Kirsch, from Peru) are all of small size, the typical forms having the mesosternum

almost as deeply excavate as in Pecilogaster and the femora unarmed beneath. The

relatively shorter second joint of the funiculus separates them from Copturominuws.

They may be grouped thus :—

a. Prosternum with a conical tubercle behind each anterior coxa, similar to that on

the coxa itself; mesosternum deeply excavate and obliquely bicarinate ; meta-

sternum hollowed in the middle in front. . . . . . . . 1. 1). «Species 1-4.

6. Prosternum without tubercles behind the anterior coxe.

a’. Meso- and metasternum shallowly depressed between the middle coxe. . . Species 5.

6°. Mesosternum only depressed between the middle coxe . ..... ~~. Species 6, 7.

* In a single minute species from Chiriqui apparently belonging to this genus, too immature to describe, the

femora are obsoletely toothed.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, October 1906. KK

66 RHYNCHOPHORA.

1. Copturomorpha interrupta, sp. n. (Tab. IV. fig. 26.)

Subovate, piceous, the rostrum and antenne ferruginous ; the prothorax sparsely clothed with rather coarse,

narrow, ochreous scales, which are somewhat condensed on the middle of the disc, and with some coarser

whitish scales at each hind angle; the elytra mottled with narrow ochreous and fuscous scales, and with

a whitish sutural stripe, which is dilated below the base into a cruciform patch and interrupted at the

middle by a common V-shaped fuscous mark, the seventh interstice with an ochreous spot at one-third

from the apex and the fourth with a similar spot at the base; the vestiture of the under surface coarse,

close, and whitish, the ventral segments 3-5 with a space down the middle, and 1 at the sides, almost

bare, the legs with narrow whitish scales. Eyes very large, subcontiguous, the intra-ocular space

gradually widening above and below. Rostrum rugulose and carinate at the extreme base. Joint 2 of

the funiculus slightly longer than 1. Joint 1 of the antennal club longer than the others united.

Prothorax transverse, narrowing from near the base, feebly constricted in front; finely, rugulosely

punctate, and feebly carinate. Elytra somewhat rounded at the sides, blunt at the tip, depressed along

the suture; deeply striate, the strie finely punctate, the interstices flat and rugulose. Mesosternum

broadly depressed, the depression limited on each side by an oblique ridge. Prosternum with a conical

prominence behind each coxa, and the coxa itself with a similar prominence. Legs short; femora

unarmed beneath and without external carina, the area on the anterior pair very finely strigose, the

intermediate and posterior knees with an acute tooth.

Length 43, breadth 23 millim.

Hab. Mexico, Jalapa (Smith, ea H. F. Wickham).

One specimen, presented by Mr. Wickham. ‘This insect has the general facies of

Copturomimus stridulans ; but the femora are unarmed beneath, the posterior knees

are spinose, and the mesosternum is shaped as in the genus Pecilogaster.

2. Copturomorpha 11-notata, sp. n. (Tab. IV. figg. 27, 27 a, 6.)

Subovate, piceous ; somewhat thickly clothed with piliform ochreous scales, the prothorax with a patch at

each hind angle, a short streak on the basal lobe, and the flanks, the elytra with a small transverse patch

on the suture at about one-third from the base, a short streak on the suture at one-third from the tip, a

minute spot at the base of the fourth interstice, another at the base of the seventh, and yet another on

the seventh at one-third from the apex, and the under surface, clothed with rather coarse white scales.

Eyes very large, subcontiguous, separated above by a narrow lanciform space. Rostrum rugulose and

carinate at the base. Funiculus with joints 1 and 2 rather elongate, subequal in length, 3 and 4 much

shorter, 5-7 very short or transverse. Prothorax transverse, somewhat rounded at the sides, narrowed

and constricted in front; densely, finely punctate, and feebly carinate. Elytra punctate-striate, the

interstices flat and rugulose. Meso- and metasternum broadly depressed between the middle cox, the

mesosternal depression limited on each side by a fine oblique ridge. Prosternum with a dentiform

prominence, similar to that on each anterior coxa. Legs short; femora unarmed beneath, the finely

strigose area on the anterior pair just traceable, the posterior knees with an acute tooth.

Length 3-34, breadth 13-2 millim,

Hab. Guaremata, San Gerénimo (Champion); Panama, Volcan de Chiriqui

(Champion).

Two specimens, the one from Guatemala immature and partly abraded, the other in

perfect condition. Smaller than C. interrupta, the two basal joints of the funiculus

subequal in length, the markings different.

COPTUROMORPHA. 67

8. Copturomorpha rugipennis, sp. n.

Subovate, nigro-piceous, the antenne, the tip of the rostrum, and the tarsi more or less ferruginous; sparsely

clothed with narrow pale ochreous scales, with darker scales intermixed: the ochreous scales on the

prothorax mostly clustered along the sides, at the middle of the base, and in the depressed space in front,

and those on the elytra into a transverse basal fascia, a streak on the suture behind the scutellum and

another at the middle, and a spot at the sides; the under surface with coarser, oval, pallid scales, the

vestiture of the legs similarly-coloured, the posterior femora with an oblique dark ring. Eyes sub-

contiguous. Rostrum rugulose and finely carinate at the base. Joints 1-2 of the funiculus equal in

length, 3 a little shorter, 4-7 short or transverse. Prothorax short, rather convex, constricted and

narrowed in front; densely, rugosely punctate, and feebly carinate. lytra much wider than the

prothorax ; deeply punctate-striate, the interstices narrow, convex, rugose. Mesosternum deeply excavate

between the coxe. Legs short; femora unarmed beneath, the finely strigose area on the anterior pair

inconspicuous and placed near the base.

Length 34, breadth 1? millim.

Hab. Mexico, Toxpam in Vera Cruz (Sallé).

One specimen. In this species the scattered vestiture is in great,part ochreous

above, and the incomplete sutural stripe is abruptly interrupted before the middle bya

transverse dark patch. Near C. 11-notata, but with the elytral sculpture coarser, and

the transverse white patch on the suture replaced by a darker one.

4. Copturomorpha albomaculata, sp. n. (Tab. IV. fig. 28.)

Subovate, black, the antennz, tip of the rostrum, and tarsi ferruginous; variegated above with oval white

and small narrow black scales: the white scales on the prothorax clustered into three large spots at the

base, another in the centre in front, and a minute spot at each anterior angle, and those on the elytra

into a narrow sutural stripe, which is broadly interrupted beyond the middle, a short streak at the base

of each dorsal interstice, another near the middle of the second, a spot on the seventh at about one-third

from the apex, and sometimes another on the fourth in a line with it, the rest of the elytral surface

with black scales; the under surface and legs clothed with white scales. Head bare above; eyes

subcontiguous ; rostrum carinate and rugulose at the base ; joints 1 and 2 of the funiculus equal in length.

Prothorax short, constricted and narrowed in front; densely, rugulosely punctate, and feebly carinate.

Elytra rounded at the sides, blunt at the apex ; deeply punctate-striate, the interstices about as wide as

the strie, flattened. Mesosternum deeply excavate between the coxee, the metasternum abruptly

declivous in front. Legs short ; femora sulcate and unarmed beneath, the strigose area on the anterior

pair inconspicuous and placed near the hase.

Length 22-23, breadth 13-13 millim.

Hab. Guatemata, Duefias (Champion).

Three specimens. Narrower than C. albosignata and C. leucosticta, the mesosternum

deeply excavate, the prothorax with a minute white spot at each anterior angle, the

elytra with the white markings less extended, &c. The white scales are coarse, above

and beneath.

5. Copturomorpha albosignata, sp. n. (Tab. IV. figg. 29, 29 a.)

Subovate, piceous or black, the antenne, the tips of the tarsi, and the apical margin of the elytra

ferruginous ; the vestiture close, coarse, long, and piliform: the prothorax with three large patches at

the base (the outer one extending forward along the flanks beneath) and a broad transverse band in

front, and the elytra with a common cruciform patch at the base, a transverse band below the shoulder,

KK 2

68 RHYNCHOPHORA.

white, the rest of the elytral vestiture black or blackish,

Head bare above, closely punctate, without smooth

space on the vertex, foveate between the eyes, which are moderately large and narrowly separated ;

rostrum sparsely punctate, rugulose and carinate at the base, smooth along the middle ; joints 1 and 2 of

the funiculus equal in length, 3 and 4 much shorter, also equal in length. Prothorax short, rather convex,

constricted and narrowed in front; densely, finely punctate, and also carinate. Elytra rather short and

broad, depressed along the suture, bluntly and separately rounded at the apex ; shining, deeply punctate-

striate, the interstices convex, rugulosely punctate. Meso- and metasternum slightly depressed between

the middle cox. Legs short; femora unarmed beneath and at the apex, and without external carina,

the strigose area on the anterior pair oblong.

Var. The elytra with the common subapical fascia reduced to three spots, the transverse subhumeral mark

wanting. .

Length 23-33, breadth 13-2 millim.

Hab. Guaremana, Cerro Zunil (Champion); Panama, Volcan de Chiriqui (Champion).

and a common, broad, undulate, subapical fascia,

that of the under surface and legs wholly white.

Three specimens of each form, one only from Guatemala. In this species the

markings on the prothorax and elytra are clothed with long, coarse, narrow, hair-like

scales, a character separating C. aldosignata from its nearest allies.

6. Copturomorpha leucosticta, sp. n. (Tab. IV. fig. 30.)

Subovate, piceous, the antenne and tarsi, and the apical margin of the elytra, ferruginous ; clothed with

oval white scales, the upper surface with intermixed small, brown or fulvous, hair-like scales: the white

scales on the prothorax condensed into a median vitta, a transverse patch on each side at the apex, and

a large patch at each hind angle (the lateral markings connected externally and almost enclosing

subtriangular bare spot), and those on the elytra into a broad sutural stripe (which is interrupted before

the middle), a spot on the shoulder, another at the side towards the apex, and a complete or much

interrupted line on each dorsal interstice; the legs with narrow white scales. Head bare above, closely

punctate; eyes large, subcontiguous in front; rostrum rugulose and subcarinate at the base; joints 1 and

2 of the funiculus equal in length. Prothorax short, densely, rugosely punctate. Elytra shining, deeply

punctate-striate, the interstices not wider than the strie, rugulose and subgranulate. Mesosternum

slightly depressed between the coxe. Legs short ; femora unarmed, the strigose area on the anterior

pair small.

Length 3-34, breadth 13-14 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Two specimens, one with the dorsal interstices of the elytra albolineate to near the

apex, the other with the white lines reduced to a few scattered streaks. Near

C. albosignata, but with the white scales on the upper and under surfaces oval in

shape, the head not foveate between the eyes, the elytra more rugose.

7. Copturomorpha funerea, sp. n.

Short ovate, black, the antennew, the apical margin of the elytra, the apices of the tibie, and the tarsi,

ferruginous ; the prothorax with a few narrow white scales at the hind angles and along the sides; the

elytra clothed with narrow black and white scales, the latter condensed into some small spots at the base,

a spot at the middle of the suture, another at its apex, and another on the eighth interstice ; the vestiture

of the legs and under surface white, the posterior femora with an oblique fuscous band beyond the middle.

Eyes almost contiguous in front, narrowly separated above. Rostrum thickly punctate to the tip, rugose

at the base. Joint 2 of the funiculus a little longer than 1. Prothorax very short, rounded at the sides,

constricted and narrowed in front; densely, rugosely punctate, and obsoletely carinate. Elytra rather

COPTUROMORPHA.-——COPTURUS. 69

convex, much wider than the prothorax, subcordate, blunt at the apex, depressed along the suture

anteriorly ; very deeply punctate-striate, the interstices rugose, not wider than the striae. Mesosternum

shallowly depressed. First ventral segment broadly flattened down the middle. Legs short; femora

unarmed, carinate externally, the finely strigose area on the anterior pair transverse and placed near

the base.

Length 21, breadth 13 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Very like some of the smaller Lechriops, but easily distinguishable

from them by the conspicuous finely strigose area near the base of the anterior femoar.

COPTURUS.

Zygops, subgen. Coptorus, Schouherr, Cure. Disp. Meth. p. 302 (1826).

Copturus, Schénherr, Gen. Cure. iv. p. 623 (1838) (part.) ; Lacordaire, Gen. Col. vii. p. 152

(part.) ; Heller, Abhandl. Mus. Dresd. no. 11, pp. 4, 19.

The numerous forms here referred to Copturus have the second joint of the funiculus

more or less elongate, the prosternum without tubercles behind the anterior coxe, the

mesosternum flattened or feebly excavate (rarely with a lamelliform prominence on

each side between the cox), the metasternum, at most, depressed or foveate in front,

and the femora armed with one or two teeth beneath, their apices sometimes acute or

spined. Dr. Heller (/. c.) enumerates seventy species as belonging to it, and divides

them into six groups or subgenera, two of which (I. and V.) do not appear to be

represented within our limits; his group III., to which most of the Central-American

Copturi belong, includes such diverse forms as C. avicularis, C. deplanus, C. mexicanus,

C. ludiosus, and C. lamprothorax. Amongst the new species now added there are

several that do not fall into any of these groups: C. centralis, C. exaratus, and

C. verrucosus approach the genus Copturosomus; and C. furfuraceus forms a sort of

connecting-link between Copturus and Lechriops. The last-mentioned genus, the type

of which is LZ. sctwrus (Fabr.), includes most of the smaller forms with a complete

rostral canal and dentate femora.

The Central-American Copturi (excluding C. latitarsis) may be grouped thus :—

I. Meso- and metasternum flattened or at most slightly depressed between the

middle coxe*; joint 2 of the funiculus elongate (except in C. fulvosignatus t+) ;

femora uni-, rarely bi-, dentate.

A. Species oblong-ovate or oblong-elliptic, large, with coarsely punctate-striate

elytra, the apices of which are sometimes sharply dentate in the ? (C. de-

planus), the posterior knees acute or spined. [Macrocoprurvs and part of

Group II]. of Heller.}. 2. 2. 2. 2. 2. 2... eee ww Nos. 1-4,

* The metasternal depression is deeper in C. neohispanicus.

ft This species would be almost as well placed in Damurus, Heller.

70 RHYNCHOPHORA.

B. Species subovate, with broad elytra, the interstices of which are feebly convex

or costate, and slender legs . . . . «© ee es oe ; . Nos. 5, 6.

C. Species subovate, with gibbous, sharply carinate prothorax, broad, nodose

elytra, and slender legs . . . . . Le toe ew ew ew ew we 6NO. 7.

D. Species subelliptic, with narrow eyes and laterally constricted elytra, the latter

nodose towards the apex, and with the apex itself dentiform . . . - + + | No. 8.

E. Species subelliptic, with the vestiture close above and sparse beneath, the

scales on the elytra small and rounded, the legs slender, the eyes large . . No.9.

F. Species elliptic, with finely striate elytra and strongly compressed posterior

femora, the vestiture of the upper surface fine, the femora bi- or unidentate.

[Evcorrurvs, Heller.} . . . . Nos. 10-14.

G. Species elliptic or subelliptic, with deeply striate © elytra, the interstices 5 of

which are somewhat costate, the eyes large, the femora unidentate, the

posterior pair seldom extending beyond the apex of the abdomen. [Group IV.

and part of Group III. of Heller.]. 2. 2. 1 ee ee ee ees Nos. 15-33.

H. Species subelliptic, with a subconical prothorax, deeply punctate-striate elytra,

and short, stout legs, the anterior femora unarmed, the others sharply

unidentate . . . ee Lo wee ew ee ee «UNO. 84,

II. Mesosternum hollowed down the centre, with a flattened prominence on each

side between the middle coxe ; joint 2 of the funiculus very little longer than 3 ;

femora unidentate ; eyes large: speciessmall . . . . . . « ~ + « + No. 35.

III. Mesosternum depressed anteriorly, with a triangular, flattened prominence on

each side between the middle coxe, the tip of the rostrum received in a deep

foveiform cavity in the front of the metasternum ; eyes large; joint 2 of the

funiculus elongate; femora unidentate. . . . . . . ee ee ee + No. 36.

IV. Mesosternum vertical, deeply excavate, the metasternum also excavate in

front ; joint 2 of the funiculus elongate; prothorax conical; ventral segments

gradually ascending ; femora unidentate, the knees with along spine. . . . No. 87.

1. Copturus martz. (Tab. V. fig. 1.)

Copturus (Macrocopturus) marte, Heller, Abhandl. Mus. Dresd. no. 11, p. 25°.

Copturus orpheus, in coll. Pascoe.

3g. Ventral segment 1 broadly and shallowly depressed down the middle, 5 truncate at the apex.

Hab. Panama, Bugaba (Champion).—CoLomBiA, Santa Marta}.

One specimen, differing from the type, and from examples from the same locality in

the Pascoe and Fry Collections, in having a more distinct short median carina on the

prothorax. C. martw is scarcely more than a variety of C. exrpletus, Pasc., from Para,

the latter having the three narrow vitte on the prothorax straight and the sutural

region of the elytra broadly depressed and squamose.

2, Copturus avicularis. (Tab. V. fig. 2.)

Copturus avicularis, Boh. in Schonh. Gen. Cure. iv. p. 680°; Heller, Abhandl. Mus. Dresd.

no. 11, p. 27, tab. fig. 26°.

COPTURUS. 71

Hab. Mexico (Koltze, in Mus. Dresden; Mus. Brit.), Vera Cruz (Chevrolat'),

Toxpam (Sallé), Cerro de Plumas (Hége).

This species has the elytra somewhat rounded at the sides, the prothorax long and

conical, the femora not carinate externally, the femoral tooth long and stout, these

characters separating it from C. mexicanus and other allied forms. The six specimens

before me appear to be of the female sex, as they have the first ventral segment

unimpressed ; they vary from 53-9 mm. in length.

3. Copturus deplanus. (Tab. V. fige. 3, 2; 4, 3.)

3. Rhynchenus deplanus, Fabr. Syst. Hleuth. ii. p. 476°.

3. Copturus deplanus, Boh. in Schénh. Gen. Cure. iv. p. 626°.

3. Copturus scapha, Kirsch, Berl. ent. Zeitschr. 1869, p. 206°; Heller, Abhandl. Mus. Dresd.

no. 11, pp. 28, 68°.

2. Copturus bispinus, Bug. in litt. ’.

3g. Ventral segment 1 shallowly sulcate down the middle, 5 broadly truncate at the apex; elytra obtusely

angulate at the tip.

. Ventral segment 1 unimpressed, 5 bluntly rounded at the apex; elytra each with a long sharp spine at

the tip.

Hab. Nicaragua, Chontales (Janson: 2); Costa Rica, San Carlos (Mus. Dresden :

3); Panama, Tolé (Champion: 3 ).—Sourm America 1°, Bogota 3 (Mus. Dresden: ¢ ),

Ecuador, Cayenne (Mus. Brit.: @ ).

There can be no doubt that the sexes of this species differ in the way noted, such

minute characters as the serrulate outer apical margin of the elytra, &c., being

common to both male and female. Dr. Heller has been kind enough to communicate

the type of C. scapha for examination.

4, Copturus mexicanus. (Tab. V. fig. 5, 3.)

Copturus mexicanus, Heller, Abhandl. Mus. Dresd. no. 11, p. 28’.

3. Ventral segment 1 broadly depressed down the middle, 5 truncate and hairy at the apex.

Hab. Muxico (Mus. Brit.), Cordova (Sallé), Oaxaca (coll. Faust), Teapa (H. H.

Smith); Guatemata, Teleman and Cubilguitz in Vera Paz (Champion); Nicaraaua,

Chontales (Janson).

The few specimens of C. mexicanus before me, including one of the types, are all of

the male sex. The single (worn) example from Chontales has the elytral interstices

sharply costate, and it may belong to a different species.

5. Copturus centralis, sp. n. (Tab. V. fig. 6.)

Copturus centralis, Chevr. in litt.

Subovate, flattened above, nigro-piceous ; clothed with small intermixed ochreous (or flavo-cinereous) and

blackish (or fuscous) scales, the ochreous scales on the prothorax condensed into three irregular vitte

72 RHYNCHOPHORA.

(the central one interrupted), the elytra with a transverse ochreous patch on the suture beyond the middle,

the blackish scales becoming more crowded on the second and third interstices and there condensed into

lines (which extend from a little below the base to the transverse ochreous patch, the inner one continued

beyond it); the under surface rather sparsely clothed with intermixed white, ochreous, and fuscous scales ;

the vestiture of the legs in great part fuscous, the intermediate and posterior femora with a broad

ochreous and white annulus on their outer face. Eyes very large, narrowly separated. Rostrum rugulose

and carinate at the base. Joint 2 of the funiculus elongate, as long as 3-5 united, 3 and 4 equal in

length, 5-7 transverse. Prothorax short, narrowing from near the base, strongly constricted in front ;

densely, rugulosely punctate, and with a short median carina, Elytra nearly one-half wider than the

prothorax, slightly rounded at the sides, gradually narrowing from about the middle, blunt at the apex,

depressed along the suture, the humeri swollen ; punctate-striate, the interstices rather convex. Inter-

mediate coxe widely separate, the intervening space flattened. Legs short; femora feebly unidentate,

the tooth on the anterior pair almost obsolete.

Length 41-5,1,, breadth 23-3 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sallé); Panama, Volcan de Chiriqui

(Champion).

Four specimens, the one from Panama darker than the others and with the elytra

less rounded at the sides. The broad, rounded-subquadrate elytra, with blackish lines

on the disc near the suture, interrupted by a transverse ochreous patch, sufficiently

distinguish C. centralis.

6. Copturus exaratus, sp. n.

Very near C. centralis, but smaller, the scattered ochreous scales not condensed into definite markings (the

transverse patch on the suture of the elytra wanting), the blackish scales predominating on the elytra, the

posterior femora with an ochreous annulus at the apex (instead of at the middle) ; joint 2 of the funiculus

as long as 3-6 united; prothorax more finely, rugulosely punctate; elytra with the interstices 3-9

narrowly costate throughout ; legs more slender, femora each with a short tooth, tarsi ferruginous.

Length 31, breadth 1? millim.

Hab. Mexico, Toxpam in Vera Cruz (Sailé).

One worn specimen, easily separable from C. centralis by the narrowly costate

elytral interstices. The elytra appear to have a broad dark fascia before the middle,

extending for a short distance down the suture posteriorly.

7. Copturus verrucosus, sp. n. (Tab. V. figg. 7, 7a.)

Subovate, shining, nigro-piceous, the antenne and tarsi, and the apical margin of the elytra, more or less

ferruginous ; sparsely clothed above and beneath with small, narrow, ochreous scales, which are condensed

on the elytra into a transverse patch on the suture beyond the middle, the rest of the elytral surface with

intermixed black scales. Head comparatively small, the eyes moderately large, well-separated above ;

rostrum rugulose and carinate at the base; antenne with a stout, ovate club, its first joint as long as

the others united, joint 2 of the funiculus about as long as 3-7 united, 3 a little longer than 4, 5-7

transverse. Prothorax short, rounded at the sides, narrowed and strongly constricted in front, with

rounded ocular lobes; densely, rugulosely punctate, the posterior lobe convex on the dise and with a

prominent arcuate carina. LElytra flattened, fully one-half wider than the prothorax, somewhat

rounded at the sides, blunt and slightly explanate at the apex, transversely depressed on the disc below

the base, the humeri swollen; punctate-striate and feebly granulate, the interstices (1 and 2 excepted)

each with a sharp, much interrupted ridge. Intermediate cox widely separated, the intervening space

COPTURUS. 73

flattened. Legs slender, short; femora feebly unidentate, the posterior pair carinate externally and not

reaching the apex of the abdomen.

Length 4,1,, breadth 24 millim.

Hab, Panama, Volcan de Chiriqui (Champion).

One rather worn specimen. ‘This insect is easily recognizable by the sharply raised,

much interrupted ridges on the elytra, and the prominent arcuate carina on the

prothorax. These characters separate C. verrucosus from its nearest ally, C. centralis,

which also has larger eyes, longer and stouter legs, &c. Both species seem to

approach the Copturophanus-section of Copturosomus, Heller.

8. Copturus constrictus, sp.n. (Tab. V. figg. 8, 8a.)

Subelliptic, flattened above, black, the antenne obscure ferruginous; the vestiture close and fine, sparser and

longer on the prothorax and denser between the elytral prominences: the head with a fulvous white-

edged line around the eyes; the prothorax with a broad rust-red or fulvous space in front, which is

followed on each side by a transverse white streak (the fulvous patch extending down the sides to near

the base in the Mexican specimen, bordered within by an oblique white streak, and enclosing a white spot

on the flanks); the elytra with a common, curved fascia between the two prominences on the disc (and in

the Mexican specimen the suture thence to the base) pure white, the rest of their surface clouded with.

narrow intermixed white and fulvous scales, a transverse or oblique patch on the dise below the base and

the small depressed area at the sides almost bare; the under surface densely clothed with coarse oval

white scales, the ventral segments 3-5 with narrow scales; the legs with intermixed narrow fulvous

and white scales. Eyes narrow, moderately large, well-separated above. Rostrum rugulosely punctate and

carinate at the base. Joint 2 of the funiculus elongate, longer than 3 and 4 united, these latter equal in

length, 5-7 transverse. Prothorax transversely strongly constricted and narrowed in front; closely,

rather coarsely punctate, and feebly carinate. Elytra abruptly constricted at the sides before the middle,

the apices each produced into a rather long, flattened tooth; punctate-striate, the dorsal interstices

feebly, the others more strongly, convex, 5 raised and swollen at its point of termination. Meso- and

metasternum flattened between the middle coxe. Legs short; femora unidentate, the knees unarmed.

Length 34-5, breadth 2-23 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sadlé); Panama, Bugaba (Champion).

Two specimens, differing in the markings of the prothorax and in the length of

the flattened lobes at the apex of the elytra. The laterally constricted, binodose,

bicaudate elytra and the narrow eyes readily distinguish C. constrictus. 'The Mexican

example, which can be taken as the type, is figured.

9. Copturus unifasciatus, sp.n. (Tab. V. figg. 9, 9a.)

Subelliptic, flattened above, shining, reddish-brown, the anterior and intermediate femora and the side-picces

of the mesosternum nigro-piceous, the tarsi ferruginous ; thickly clothed above with small ochreous scales

—those on the prothorax elongate and those on the elytra rounded and closely packed,—the prothorax

with two sinuous vittee on the disc, and the elytra with an irregular, interrupted, undulate fascia before

the middle, reddish-brown, the humeri bare; the under surface and legs sparsely clothed with small,

piliform, whitish scales. Eyes Jarge, subcontiguous. Rostrum rugulosely punctate and carinate at the

base. Antenne with a stout oblong-ovate club; joint 2 of the funiculus nearly as long as 3-6 united,

3 and 4 equal in length, 5-7 transverse. Prothorax short, narrowing from the base, constricted in front ;

densely, finely punctate, and feebly carinate. Elytra rather long, much wider than the prothorax,

gradually narrowing from a little below the base, depressed along the suture; punctate-striate, the

BIOL. CENTR.-AMER.. Coleopt., Vol. 1V. Pt. 5, October 1906. LL

74 RHYNCHOPHORA.

interstices feebly convex. Meso- and metasternum broadly flattened between the middle cox. Legs

short ; femora unidentate, the posterior pair carinate externally, the knees without spines.

Length 33, breadth 2 millim.

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. This species has the elytra clothed with closely-packed, small,

rounded scales, which are ochreous in colour, except upon the undulate, interrupted,

ante-median fascia, where they are reddish-brown. The prothorax has three broad

ochreous vitte. The legs are slender.

10. Copturus lynceus, sp.n. (Tab. V. fig. 10.)

Elliptic, flattened above, nigro-piceous or piceous, the prothorax sometimes rufescent, the antennee ferruginous ;

the head with a line behind the eyes, the prothorax with a median vitta, a transverse patch on each side

in front, and a patch at each hind angle, the scutellum, and the elytra with a sutural stripe (dilated

at the base and at the middle) and two transverse fasciee on the outer part of the disc (the posterior one

sometimes reduced to a small spot), ochreous, the elytra also with a white spot on the outer margin

just before the apex, the rest of the vestiture of the upper surface very fine and sparse, and partaking of

the ground-colour; the under surface and legs thickly clothed with narrow whitish or flavo-cinereous

scales, the ventral segments 2-5 with a bare spot on each side. Eyes extremely large, contiguous.

Rostrum arcuate, rugulose and carinate at the base, and smooth thence to the tip. Funiculus slender ;

joint 2 nearly as long as 3-7 united, 3 and 4 subequal in length, each a little shorter than 1. Prothorax

transverse, narrowing from the base, constricted in front; densely, minutely punctate. Elytra oblong-

cordate, depressed along the suture ; finely striate, the stria feebly punctate, the interstices rather convex,

minutely punctulate. Mesosternum slightly depressed. Legs moderately long, the femora bidentate

beneath, the minute outer tooth sometimes wanting, the posterior pair strongly compressed and about

reaching the apex of the elytra, the intermediate and posterior pairs carinate on their outer face ; inter-

mediate and posterior tibie rather broad, rounded externally.

Length 6-61, breadth 24-3 millim.

Hab. Guatemata, San Juan in Vera Paz (Champion); Nicaracua, Chontales (Belt).

The Guatemalan specimen is taken as the type, the other two being somewhat

rubbed and having the ochreous markings reduced in size. C. lynceus belongs to the

subgenus Ewcopturus of Heller; it is nearly related to C. rhombifer and C. suturalis,

from Cayenne.

11. Copturus fulvomaculatus, sp.n. (Tab. V. fig. 11.)

Elliptic, concave above, black, the antenne and the tips of the tarsi ferruginous; variegated above with a

dense clothing of small narrow scales: the head with a line behind the eyes, and the prothorax with five

vittee (the central one narrow, angularly dilated at about the middle, the submarginal one mesially

constricted, the outer one angulate and almost invisible from above), fulvous, the exterior one edged with

white; the elytra blackish-brown, with various irregular fulvous spots, one on either side of the suture

just below the base and a smaller one close to the middle of the suture edged with white, the intervening

portion of the suture also white; the under surface variegated on each side with coarser white, fulvous,

and blackish-brown scales, the ventral segments 2-5 blackish-brown, maculated with white; the legs

with intermixed narrow fulvous and white scales, the intermediate femora narrowly, and the posterior

femora broadly, annulate with blackish-brown. Eyes very large, subcontiguous, Rostrum carinate and

closely punctate at the base, smooth thence to the tip. Joint 2 of the funiculus elongate, nearly as long

as 3-6 united, 3 very little longer than 5, 4 fully twice as long as 3, 5-7 short. Prothorax transverse,

narrowing from the base, constricted in front; densely, very finely punctate. Elytra oval, obliquely

COPTURUS. 75

truncate at the tip, the sutural angle rounded, the sutural region broadly depressed ; finely punctate-

striate, the interstices flat on the disc. Meso- and metasternum flattened between the middle coxe.

Legs rather short; anterior femora bidentate, intermediate and posterior femora with a blunt lamelliform

prominence exterior to the other tooth, both pairs sharply carinate externally ; posterior tibize com-

paratively broad.

Length 53-67, breadth 2,9,-3,1, millim.

Hab. Nicaracua, Chontales (Belt).

Two specimens. The elytral markings in this species are fulvous, and in part edged

with white, as in Zygops amenula, an insect also occurring at Chontales. The bidentate

femora and the relatively long fourth joint of the funiculus are also characteristic.

C. fulvomaculatus belongs to the section Eucopturus, Heller.

12. Copturus sericeus, sp. n. (Tab. V. fig. 12.)

Elliptic, robust, opaque, piceous or nigro-piceous, the rostrum, and sometimes the legs in part, rufescent, the

antenne ferruginous; the vestiture close and very fine: the head with a line around the eyes, and the

prothorax with three vitte (sometimes connected in front, the central one enclosing a short, bare, median

line), ochreous; the elytra with a broad transverse space at the base and another at the middle, connected

along the suture, a spot at the sides at about one-third from the apex, the apical portion of the suture,

and various undulate interrupted fasciz or scattered spots, sordid ochreous or flavo-cinereous, the rest of

tbe vestiture fuscous ; the under surface with coarser whitish scales, the fifth ventral segment with a bare

spot. Eyes extremely large, very narrowly separated. Rostrum rugulose and carinate at the base, and

sparsely, minutely punctate thence to the tip. Joint 2 of the funiculus as long as 3-5 united, 3 and 4

subequal in length. Prothorax transverse, narrowing from the base, strongly constricted.in front;

densely, minutely punctate, rugulose on each side of the smooth, cariniform, median line. Elytra some-

what oval, blunt at the tip, depressed along the suture anteriorly ; finely punctate-striate, the interstices

feebly convex. Meso- and metasternum flattened between the middle coxe, the mesosternum slightly

swollen on each side. Legs short and stout; femora broad, sharply unidentate beneath, the posterior

pair carinate externally and strongly compressed.

Length 53-53, breadth 23-22 millim.

Hab. Panama, Bugaba (Champion).

Three specimens, two of them somewhat immature. Distinguishable by the fine

silky vestiture, the comparatively smooth prothorax, the finely striate elytra, and the

broad femora. C. sericeus seems to belong to the subgenus Lucopturus of Heller; the

femora are nearly as broad as in Cyphocopturus tristis.

13. Copturus maculosus, sp. n. (Tab. V. fig. 13.)

Very like C. sericeus, but with the vestiture a little coarser, the median vitta of the prothorax interrupted ;

the prothorax closely, uniformly punctate, and also carinate; the elytra a little less rounded at the sides,

the apices more abruptly truncate, the strie distinctly punctate, the sutural region less depressed; the

meso- and metasternum slightly depressed between the middle cox ; the fifth ventral segment without

a bare spot in the middle; the legs not so stout, the femora narrower ; the eyes subcontiguous.

Length 42-44, breadth 23-22 millim.

Hab. Payama, Volcan de Chiriqui, Bugaba (Champion).

Two specimens, easily separable from C. sericeus by the characters given, the

LL 2

76 RHYNCHOPHORA.

difference in the sculpture of the prothorax alone being sufficient to distinguish them.

The elytral markings are similar. C. maculosus has the general facies of C. histricus.

14. Copturus tricolor, sp. n. (Tab. V. figg. 14, 142@.)

Subelliptic, flattened above, black, the antenne obscure ferruginous, the vestiture dense and fine: the eyes

encircled by an ochreous line; the prothorax with four sharply-defined black vitte, extending from the

base to the carmine-red band in front, the two vitte on each side usually connected anteriorly, the outer

one coalescent with the transverse black fascia running down the flanks, the intervening spaces ochreous ;

the elytra brownish or purplish-brown variegated with cinereous, the cinereous scales condensed into a

curved patch on each side of the suture at the base, two or three spots at the sides, and a stripe down

each alternate interstice; the under surface white or yellowish-white, variegated with black along the

sides, the ventral segment 2 with a broad, posteriorly trilobate black band in front, the median branch

running downwards to the apex of 5. Eyes very narrowly separated. Rostrum rugulosely punctate and

carinate at the base, the lateral sulci (scrobes) extending forwards to near the apex. Joint 2 of the

funiculus nearly as long as 3 and 4 united. Prothorax transverse, gradually narrowing from the base,

constricted in front; densely, finely punctate. Elytra narrowing from a little below the base, obliquely

truncated at the apex; fincly striate, the strie feebly punctate, the interstices flat. Meso- and meta-

sternum slightly depressed between the middle coxe. Femora unidentate, the posterior pair strongly

compressed, not reaching beyond the apex of the abdomen, and with the inner apical lobe spiniform, the

intermediate and posterior pairs carinate externally.

Length 6-7, breadth 3-34 millim,

Hab. Mexico, Cordova (Sa/lé); GuatemMaLa, Senahu in Vera Paz (Champion) ;

Nicaragua (Sallé), Chontales (Belt).

Five specimens. Larger than C. neohispanicus ; the prothorax with the four sharply-

defined black vittee on the posterior lobe separated by ochreous interspaces ; the elytra

with a common, interrupted, »-shaped cinereous patch at the base, finely striate, the

interstices flat; the metasternum without definite impression between the middle coxe.

15. Copturus montezuma, sp.n. (Tab. V. fig. 15.)

Copturus (Eucopturus) montezuma, Heller, in litt.

Subelliptic, robust, black, the antenne ferruginous, the vestiture close and fine: the head with an ochreous

line around the eyes which becomes red above ; the prothorax black, with three narrow ochreous vittee

extending forwards to the carmine-red band in front; the elytra black or blackish-brown, with a small

subquadrate patch on the suture at the base, an oblique streak below the shoulder, and various interrupted

lines on the disc, ochreous or fulvous, the rest of the suture and two transverse streaks at the sides (one

at*about the middle, the other midway between this and the apex) white; the under surface white,

except upon the large, almost bare spaces extending across the flanks, metasternum, and abdomen, the

second ventral segment with a median vitta, and the fifth with a transverse space at the apex, also black.

Eyes narrowly separated. Joint 2 of the funiculus very elongate, about as long as 3-6 united. Prothorax

short, gradually narrowing from near the base, feebly constricted in front ; densely, finely punctate and

obsoletely carinate. Elytra somewhat cordate, depressed along the suture; rather coarsely punctate-

striate, the interstices convex. Meso- and metasternum flattened between the coxe. Legs moderately

long ; femora unidentate, the posterior pair strongly compressed, reaching a little beyond the apex of the

abdomen, the intermediate and posterior pairs carinate externally, the inner apical lobe of the latter

acute.

Length 6-63, breadth 3;4,-33 millim.

Hab. Costa Rica, San Carlos (Mus. Dresden); Panama, Bugaba (Champion).

COPTURUS. 17

Found in profusion at Bugaba on the bark of an enormous fallen tree in a forest

clearing which had been burnt to plant rice. More robust than C. tricolor, the

markings different, the elytra subcordate, the second joint of the funiculus very

elongate. C. montezuma differs from the S.-American C. rubricollis, Gyll., in having

the elytra longer and laterally trifasciate, the prothorax with three narrow ochreous

vitte on the posterior lobe, the eyes less approximate; the elytral interstices convex.

16. Copturus neohispanicus. (Tab. V. fig. 16.)

Copturus neohispanicus, Heller, Abhandl. Mus. Dresd. no. 11, p. 33°.

Hab. Mexico (Koltze+, in Mus. Dresden).

The type of this species has been communicated by Dr. Heller. It may be at once

separated from the other similarly-coloured Central-American forms (7. e. those with

the vestiture of the anterior portion of the prothorax fiery-red) by the very finely and

narrowly costate elytral interstices, and the excavate anterior portion of the meta-

sternum. The ventral segments 1 and 2 have an almost bare transverse space on each

side in front. The Colombian C. severini, Heller (the type of which I have seen), is

very like C. neohispanicus, and has a similarly excavate metasternum ; but it is more

elongate, the alternate elytral interstices are more sharply costate, and the legs area

little longer.

17. Copturus cincticollis, sp. n. (‘Lab. V. fig. 17.)

Subelliptic, black, the antennze and the apical margin of the elytra obscure ferruginous, the vestiture close and

fine: the head with a rufous line around the eyes above; the prothorax with three short whitish vitix

extending from the base to the broad carmine-red band in front, the outer one continued downwards on

to the humeri and mesosternal side-pieces and connected anteriorly with the oblique white stripe running

down the flanks, the intervening spaces on the posterior lobe almost bare; the elytra with a small sub-

quadrate scutellar patch, a transverse mark below it, and the suture thence to the apex, whitish, these

markings partly included within a common Y-shaped black patch extending from the shoulders to the

apex, the rest of the vestiture fulvous streaked with black; the under surface white, with transverse

black spaces along the sides and a small spot at the apex of the last ventral segment. Eyes subcontiguous.

Rostrum rugulosely punctate and carinate at the base. Funiculus with joint 2 as long as 3-5 united.

Prothorax strongly transverse, narrowing from the base; densely punctate. LElytra narrowing from a

little below the base, blunt at the apex; finely punctate-striate, the interstices feebly convex, flat near

the suture. Meso- and metasternum slightly depressed between the middle cox. Legs rather short ;

femora unidentate, the posterior pair with a minute additional tooth, the intermediate and posterior pairs

carinate externally.

Length 3-4, breadth 13-2 millim.

Hab. Panama, Bugaba (Champion).

Many specimens. Smaller than C. neohispanicus, the elytra differently marked, their

interstices not costate, the prothorax (as seen from above) with a subquadrate whitish

patch at each hind angle partly enclosing a black spot, the metasternum without

definite impression between the middle coxe, the eyes more approximate.

78 RHYNCHOPHORA.

18. Copturus quadricolor, sp. n. (Tab. V. fig. 18.)

Very like C. cincticollis, but with the transverse carmine-red band on the front of the prothorax divided into

two large spots, which are rounded posteriorly and rapidly narrowed beneath, the ochreous median vitta

continued to the apex ; the elytra with a common triangular black patch at the base, extending outwards

to the humeri and enclosing an oblong, subquadrate, ochreous scutellar patch, the vestiture thence to the

apex brown intermixed with white, the white sutural stripe wanting.

Length 4, breadth 2 millim.

Hab. Nicaragua, Chontales (Janson, in coll. Fry).

One specimen. This is the Nicaraguan form of C. cincticollis and it requires a

distinctive name.

19. Copturus ruficollis, sp.n. (Tab. V. fig. 19.)

Very like C. cincticollis, but with the dark markings of the elytra not extending beyond the basal third, the

vestiture thence to the apex uniformly fulvous, the seriate punctures each with a white hair-like scale ;

the ventral segments clothed throughout with white scales,

Length 3-34, breadth 13-1? millim. (?9.)

Hab. Guatemata, Chacoj in Vera Paz (Champion); Panama, Bugaba (Champion).

Two specimens. Perhaps an extreme form of C. cincticollist A worn specimen (2 ¢ )

from Chontales, Nicaragua (Janson), probably belongs to C. rujicollis, though it has

the eyes somewhat widely separated above. The sexes of Hoplocopturus scintillans

differ in a similar way.

20. Copturus conturbatus. (Tab. V. fig. 20.)

Copturus conturbatus, Heller, Abhandl. Mus. Dresd. no. 11, p. 31’.

Copturus miniatus, Chevy. in litt.’.

Hab. Mexico, Toxpam in Vera Cruz (Sallé!).

This insect may be known by the colour and arrangement of the vestiture. The

head has a line behind the eyes above, and the prothorax a large transverse patch on

each side in front (the two patches connected along the anterior margin), fiery-red; the

prothorax has three whitish or cinereous patches at the base (the outer one enclosing

a small black spot); the elytra are mottled with cinereous (or whitish) and black, the

cinereous scales condensed into large patches along the suture and on the apical half;

the under surface and legs are uniformly whitish.

21. Copturus torquatus. (Tab. V. fig. 21.)

Copturus torquatus, Heller, Abhandl. Mus. Dresd. no. 11, p. 32°.

Hab. Mexico}, Toxpam in Vera Cruz (Sallé).

Apparently peculiar to Eastern Mexico. The vestiture in this species is coloured

thus :—The head has a line behind the eyes above, and the prothorax the apical third,

rufous, the latter with three patches at the base, and the elytra with a common

COPTURUS. 79

V-shaped scutellar mark, pale metallic blue, the elytra for the rest broadly black

at the base and brownish or cinereous thence to the tip, the under surface

white.

22. Copturus lamprothorax. (Tab. V. figg. 22, 23.)

Copturus lamprothorax, Heller, Abhandl. Mus. Dresd. no. 11, p. 32°.

Copturus lamprothoraz, var. ? latior, Heller, loc. cit. p. 33°.

Var. The elytra variegated with fuscous or black, sometimes with an oblique interrupted band extending

across the disc from the scutellum to near the middle of the eighth stria and then continued downwards

to the subapical spot, the white sutural stripe dilated at the middle, and some other white scales usually

present on the disc and in front of the humeral callus. (Fig. 23.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé); GuareMaLa, San Gerdnimo, Las

Mercedes, Duefias (Champion); Nicaracua, Chontales (Belt); Panama, Bugaba, Volcan

de Chiriqui, Caldera, Tolé (Champion).

Found in numbers in Chiriqui. The form with variegated elytra has been found in

quantity, both in Chiriqui and at Toxpam, and it is connected by intermediate forms.

The var. latior, Heller, is based upon a single discoloured example with the elytra a

little broader than usual. The subapical dark spot is often wanting. The prothorax

has the sides and a stripe down the middle clothed with flattened metallic-blue or

green scales. The eyes are more approximate, and the rostrum a little longer and

smoother, in the female than in the male. The length varies from 2-33 millim. The

two specimens figured are from Toxpam.

23, Copturus atrosignatus, sp.n. (Tab. V. fig. 24.)

Elliptic, nigro-piceous, the antenne, the basal half of the rostrum, and the legs ferruginous, the elytra rufo-

piceous, with a broad, oblique, blackish fascia below the shoulders; the vestiture close and fine: the head

with an ochreous line around the eyes; the prothorax with three sharply-defined vitte formed by inter-

mixed ochreous and white scales; the elytra with the base broadly, the suture, the second interstice to

beyond the middle, and an interrupted oblique fascia towards the apex, whitish or ochreous, the rest of their

vestiture blackish ; the scales on the under surface and legs white. Eyes large, very narrowly separated.

Joint 2 of the funiculus elongate. Prothorax very short, densely punctate and subcarinate. Elytra deeply

punctate-striate, the interstices rugulose and almost flat. Meso- and metasternum flattened between the

middle coxee. Legs short, slender ; femora sharply unidentate beneath.

Length 2,';-23, breadth 15-14 millim.

Hab. Mexico, Toxpam (Sallé), Teapa (H. H. Smith).

Two specimens, precisely alike. Very like C. lamprothorax, but without trace of

metallic colour on the prothorax, the three pallid vitte sharply defined, the elytra

with a broad, oblique fascia below the shoulder, a streak on either side of the

suture towards the apex, and a patch at the sides in a line with it, infuscate or

black.

80 RHYNCHOPHORA.

24, Copturus quadricinctus. (Tab. V. fig. 25.)

Copturus quadricinctus, Heller, Abhandl. Mus. Dresd. no. 11, p. 38°.

Hab. Mexico! (Mus. Brit.; Mus. Dresden), Toxpam in Vera Cruz (Sa/lé); PANaMa,

Bugaba, Volcan de Chiriqui (Champion).

We have several specimens of this species from Eastern Mexico and Chiriqui. It

has three vitte on the prothorax, and the suture and two curved fascie on the elytra,

ochreous or whitish. The elytral interstices are sharply costate throughout. The

femora have each a small tooth; the carina on the outer face of the two posterior pairs

is sharply defined. The metasternum is slightly depressed between the middle coxe.

25. Copturus ludiosus. (Tab. V. figg. 26, 26 a.)

Copturus ludiosus, Boh. in Schénh. Gen. Cure. iv. p. 642'; Heller, Abhandl. Mus. Dresd. no. 11,

p. 80°.

Hab. Mexico, Vera Cruz? (Chevrolat!), Teapa (1. H. Smith); Panama, Bugaba,

(Champion).

We have two specimens of this species, agreeing with the type communicated by

Dr. Aurivillius. The coarse punctuation of the prothorax, the rough elytral interstices,

and the rather short, stout legs separate C. dudiosus from most of its Central-American

allies. ‘The prothorax has three faint interrupted ochreous vitte on the disc, and the

elytra a twice-interrupted white sutural stripe and two irregular transverse ochreous

fasciz, one basal and the other median. ‘The second joint of the funiculus is as long

as the third and fourth united, these being equal in length. The mesosternum is

slightly depressed in the middle.

26. Copturus gracilis. (Tab. V. figg. 27, 27 a.)

Copturus gracilis, Helier, Abhand!. Mus. Dresd. no. 11, p. 87”.

Elliptic, nigro-piceous, the rostrum rufescent, the antenne and the apical margin of the elytra ferruginous ;

variegated above with narrow white, ochreous, and blackish scales, the white or ochreous scales condensed

into a narrow line around the eyes and five narrow vitte on the prothorax (the outer ones not visible

from above), the elytra with a sutural stripe (which is interrupted beyond the middle in one specimen),

and two transverse fascie at the sides, white, the disc also interruptedly bifasciate, the anterior fascia

more or less ochreous ; the vestiture of the legs and under surface white, the mesothoracic episterna with

a fuscous spot, the fifth ventral segment with a transverse darker patch in the middle. Eyes very large,

narrowly separated. Rostrum rugulose and sharply carinate at the base. Joint 2 of the funiculus very

elongate, about as long as 3-6 united, 3 shorter than 1, 4 twice the length of 3, 5-7 transverse. Prothorax

transverse, gradually narrowing from a little before the base, constricted in front, with broadly rounded

ocular lobes; closely, coarsely punctate. Elytra much broader than the prothorax, somewhat rounded at

the sides; rather coarsely punctate-striate, the interstices almost flat and densely rugulose. Meso- and

metasternum slightly depressed between the middle coxe. Legs moderately long ; femora unidentate,

the posterior pair extending a little beyond the apex of the abdomen, the knees acute.

Length 43-43, breadth 23-23 millim.

Lab. Mexico, 'Toxpam in Vera Cruz (Sal/é!).

COPTURUS. 81

Very like C. ludiosus, but less rugose above and with the vestiture somewhat

differently arranged, the fourth joint of the funiculus twice the length of the third

(as in C. fulvomaculatus), the legs longer and not so stout, the rostrum more slender.

I have seen three specimens of C. gracilis, including the type.

27. Copturus histricus, sp. n. (Tab. V. fig. 28.)

Subelliptic, nigro-piceous, the antennx and rostrum ferruginous, the legs partly rufescent ; variegated above

with narrow ochreous, cinereous, and blackish scales, the ochreous scales clustered into a line around the

eyes and three rather broad sharply-defined vittee on the prothorax, the elytra with a small spot on

the shoulder, two common, curved, interrupted fasciz (one median and the other midway between it

and the apex), and the apical portion of the suture, ochreous, the rest of the suture (except for a short

distance before the middle) and various short streaks at the base of the dorsal interstices whitish ; the

vestiture of the under surface and legs white or yellowish-white. Eyes very large, subcontiguous.

Rostrum rugulose and carinate at the base. Funiculus slender, joint 2 elongate, about as long as 3 and 4

united, these subequal in length and each as long as 1, 5-7 short. Prothorax transverse, constricted in

front, narrowing from near the base, the sides rounded posteriorly ; densely, somewhat finely punctate, and

subearinate. Llytra rather narrow, depressed along the suture, blunt at the tip; punctate-striate, the

interstices almost flat. Meso- and metasternum flattened between the middle coxew, Legs comparatively

slender, moderately long; femora sharply unidentate, the posterior pair reaching to a little beyond the

apex of the abdomen, carinate externally.

Length 44-43, breadth 2 millim,

Hab. Panama, Bugaba (Champion).

Two specimens, varying in the extent of the ochreous markings on the elytra. Less

robust than C. dudosus, the ochreous vittee on the prothorax sharply defined, the elytral

vestiture differently arranged, the sculpture of the prothorax and elytra not nearly so

coarse, the legs more slender, &c.

28. Copturus amenus, sp. n. (Tab. V. fig. 29.)

Copturus amenus, Faust, in litt.

Oblong-elliptic, opaque, piceous, the antennw and the apical margin of the elytra ferruginous ; the vestiture

fine, close on the elytra: the head with a line around the eyes, and the prothorax with three vitte,

fulvous ; the elytra variegate with fulvous, cinereous, and blackish-brown—the cinereous scales condensed

into two patches on the suture (one at the base, oblong, the other beyond the middle, transverse or trian-

gular), the second usually extending along it to the tip, and various scattered spots, the fulvous scales mainly

clustered into a spot on the shoulder, an oblique or transverse stripe below it, and a broad, interrupted,

subapical fascia; the under surface thickly clothed with coarser white scales, the vestiture of the legs

also white. yes very large, narrowly separated. Rostrum rugulosely punctate at the base. Joint 2 of

the funiculus elongate, as Jong as 3 and 4 united, the latter equal in length, 5-7 short. Prothorax short,

somewhat rounded at the sides, constricted and slightly narrowed in front ; densely, rugulosely punctate,

and obsoletely carinate. Elytra narrowing from a little below the base, conjointly rounded at the apex ;

punctate-striate, the interstices rugulose and almost flat. Meso- and metasternum flattened between the

middle coxse. Legs slender, rather long ; femora unidentate, the intermediate and posterior pairs carinate

externally, the posterior pair scarcely reaching beyond the apex of the abdomen.

Length 3-4, breadth 13-13 millim.

Hab. Mexico (Koltze, in Mus. Dresden); Guaremaua, San Juan in Vera Paz

(Champion). |

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, October 1906. MAL

82 RH YNCHOPHORA.

Numerous specimens of this species were found at San Juan, on the north side of

the Polochic Valley. Smaller and less robust than C. histricus, the elytral markings

different.

29. Copturus fulvocruciatus, sp.n. (Tab. V. fig. 30.)

Oblong-elliptic, dull, nigro-piceous or black, the antenne ferruginous ; the vestiture fine, coarser and some-

what imbricate on the cruciform elytral patch’: the head with a line around the eyes, and the prothorax

with three vitte (the median one interrupted, the others excised within), ochreous or fulvous, the elytra

with a broad, common, cruciform, fulvous and white patch on the apical half, an oblong, subquadrate,

white patch at the base of the suture, a fulvous spot on the shoulder, and a few other scattered fulvous

and white scales, the rest of their vestiture black; the under surface thickly clothed with coarse, oval,

white scales, the lateral portions with a few ochreous scales intermixed, the vestiture of the legs white, the

femora sometimes with ochreous scales intermixed. Eyes very large, subcontiguous. Rostrum rugulosely

punctate and carinate at the base. Joint 2 of the funiculus elongate, nearly as long as 3-6 united,

3 and 4 subequal in length, 5-7 short. Prothorax short, densely, rugulosely punctate. Elytra depressed

along the suture, punctate-striate, the interstices rugulose and feebly convex. Meso- and metasternum

flattened between the middle coxw. Legs short; femora sharply unidentate, the intermediate and

posterior pairs carinate externally.

Length 3-33, breadth 13-14 millim.

Hab. Guatemaua, San Juan in Vera Paz (Champion); Panama, Bugaba (Champion).

Twelve specimens. Near C. amanus, but with a broad, common, cruciform, fulvous

and white patch (the transverse portion fulvous, the sutural portion white in front and

behind) on the apical half of the elytra, the white patch at the base of the suture

larger, the legs shorter and stouter, &c. In one example the prothoracic vitte are

partly white.

30. Copturus multiguttatus, sp.n. (Tab. V. fig. 31.)

Subelliptic, rather short, nigro-piceous or piceous, the rostrum, antenne, and tarsi, and the apical margin of

the elytra, more or less ferruginous ; the vestiture fine, close on the elytra: the head with a line around

the eyes, and the prothorax with three vitte (the central one dilated at the middle, the others curved),

flavo-cinereous, the elytra with the suture, three irregular fascie (at base, middle, and apex), and various

transverse spots or streaks, similarly coloured, the scales on the rest of their surface blackish-brown ; the

under surface thickly clothed with coarser whitish scales, the vestiture of the legs also white. Eyes very

large, subcontiguous. Rostrum rugulosely punctate and carinate at the base. Joint 2 of the funiculus

as long as 8-5 united, 4 much shorter than 3, 5-7 transverse. Prothorax short, somewhat rounded at

the sides posteriorly, narrowed and feebly constricted in front; densely, rugulosely punctate, and feebly

carinate. Elytra rather short, deeply striate, the strie feebly punctate, the interstices rugulose and

almost flat. Meso- and metasternum flattened between the middle coxe. Legs short; femora rather

stout, unidentate, the posterior pair carinate externally.

Length 24-33, breadth 15-13 millim.

Hab. Panama, Bugaba (Champion).

Eleven specimens. Smaller than C. maculosus, the fourth joint of the funiculus

much shorter than the third, the elytra shorter, deeply striate, with the suture, three

irregular transverse fasciw, and various other spots and markings, which are here and

there confluent, flavo-cinereous.

COPTURUS. 83

31. Copturus gracilipes, sp.n. (Tab. V. fig. 32.)

Subelliptic, rather narrow, nigro-piceous, the rostrum, antenne, legs, and apical margin of the elytra rufo-

testaceous or ferruginous ; the vestiture fine: the head with a white line between the eyes, the prothorax

with three ochreous vitte, the elytra with a spot on the shoulder, a sutural stripe (which is interrupted

by a dark spot beyond the middle), and various interrupted, transverse or undulate, fasciee whitish, the

rest of their vestiture blackish-brown ; the under surface thickly clothed with white scales, the vestiture

of the legs also white. Eyes very large, subcontiguous. Rostrum rugulose, carinate, and densely

squamose at the base, and smooth and bare thence to the tip. Joint 2 of the funiculus as long as 3-5

united, 3 and 4 subequal in length, 5-7 short. Prothorax short, rounded at the sides, narrowed and

constricted in front; densely punctate and subcarinate. LElytra punctate-striate, the interstices flat

and rugulose. Mesosternum slightly hollowed, and the metasternum flattened, between the middle coxe.

Legs very slender; femora feebly unidentate, the posterior pair reaching the apex of the abdomen and

carinate externally.

Length 22, breadth 154, millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. <A small species, with very slender red legs and whitish, interrupted,

undulate fasciz on the elytra, the latter also with a whitish sutural stripe, interrupted

beyond the middle by a dark spot. It is perhaps nearest allied to C. multiqguttatus.

82. Copturus bicinctus, sp.n. (Tab. V. fig. 33.)

Subelliptic, reddish-brown, the antenne, rostrum, and tarsi, and the apical margin of the elytra, more or less

ferruginous ; the vestiture fine: the head with a line around the eyes, and the prothorax with three

sharply-defined vittz, ochraceous, the elytra with the suture, two rather broad fascis (one, basal, including

the humeral callus, the other, undulate, beyond the middle), and a narrow streak at the apex of the

seventh interstice, ochraceous or cinereous, the rest of the clothing of the upper surface brown, that

of the under surface and legs whitish. Eyes large, almost contiguous. Rostrum rugulose and finely

carinate at the base. Joint 2 of the funiculus nearly as long as 3-5 united, 3 and 4 equal in length,

5-7 very short. Prothorax short, narrowing from near the base, constricted in front; densely punctate

and subcarinate. Llytra somewhat rounded at the sides, blunt at the apex, depressed along the suture ;

sharply striate, the strize with fine punctures, the interstices almost flat and rugulose. Meso- and

metasternum depressed between the middle cox. Legs short; femora unidentate, the posterior pair

without external carina.

Length 25-31, breadth 13-1} millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Four specimens. A small species with trivittate prothorax and bifasciate elytra, the

latter with the suture and a narrow streak at the apex of the seventh interstice also

ochraceous or cinereous.

33. Copturus undatus, sp. n.

Elliptic, piceous, the elytra mottled with rufo-piceous, the antenns: and tarsi ferruginous, the rostrum, femora,

and tibie reddish; the vestiture rather sparse, ochreous and white intermixed, the elytra also with

darker scales: the pallid scales on the prothorax condensed into three broad vitte (the central one

interrupted); the elytra with various interrupted, undulate, irregular, light and dark fascie, the suture

pale, each of the seriate punctures bearing a narrow scale; the vestiture of the under surface and legs

whitish. Head broad; eyes very large, subcontiguous; rostrum rugulose and subcarinate at the base ;

joint 2 of the funiculus elongate. Prothorax short, gradually narrowing from the base, constricted in

MM 2

84 RHYNCHOPHORA.

front; densely punctate and feebly carinate. Elytra deeply punctate-striate, the stris broad, the inter-

stices rugose. Meso- and metasternum flattened between the middle coxe. Legs short, femora feebly

unidentate beneath, the posterior pair carinate externally.

Length 21, breadth 1} millim.

Hab. Panama, Bugaba (Champion).

One specimen. Near C. bicinctus, but with a broader head and prothorax, the

median vitta on the latter wider and interrupted, the elytra with undulate, irregular,

light and dark fascie, the mesosternum unimpressed, the posterior femora carinate

externally. The elytra have broader strie than C. multiguttatus, and each of the :

punctures bears a narrow scale; the fasciz, too, are more interrupted.

34. Copturus fulvosignatus, sp.n. (Tab. VI. fig. 1.)

Subelliptic, robust, piceous, sparsely clothed with narrow, intermixed whitish and fulvous scales, which are

not clustered into vitte on the prothorax, the fulvous scales on the elytra condensed into a transverse

fascia on the disc below the base, the whitish scales condensed into a large subtriangular scutellar patch,

an undulate postmedian fascia, and a narrow sutural stripe, the seriate punctures each with a narrow

scale, the rest of their surface with scattered blackish-brown scales; the under surface clothed with

coarse whitish scales, the vestiture of the legs similarly coloured. Eyes very large, narrowly separated.

Rostrum rugulosely punctate and carinate at the base. Joints 1 and 2 of the funiculus subequal in

length, 3 and 4 short, equal, 5-7 transverse. Prothorax broader than long, somewhat convex, subconical,

very feebly constricted in front; closely, rather coarsely punctate, the narrow interspaces shining. Elytra

rather short, rapidly narrowing from a little below the base, blunt at the apex; deeply punctate-striate,

the interstices densely rugulose and almost flat. Meso- and metasternum broadly flattened between the

middle coxe. Legs short and stout; femora broad at the base, the intermediate and posterior pairs

sharply unidentate, the anterior pair unarmed, the posterior knees acute.

Length 3,,—-4, breadth 13-2 millim.

Hab, Guaremata, Chacoj in the Polochic Valley (Champion).

Five specimens. A small, robust species, with the vestiture of the prothorax sparse

and scattered, the elytra with a transverse fulvous patch on the disc below the base

and a common, undulate, whitish post-median fascia, the legs short and stout, the

anterior femora unarmed, the second joint of the funiculus scarcely longer than the first.

C. fulvosignatus bas the antenne formed very much as in Damurus.

35. Copturus ignicollis, sp.n. (Tab. VI. fig. 2.)

Subelliptic, black, the base of the antennew ferruginous; rather sparsely clothed with narrow hair-like scales,

which are seriately arranged on the elytra: the head with a rufous line around the eyes above; the

prothorax with three white patches at the base extending forwards to the broad fiery-red apical band ;

the elytra fulvous, with a transverse space at the base, a transverse patch on the suture before the middle,

and a large patch at the apex, black and almost bare, the rest of the suture and the basal margin narrowly

white, the seriate punctures each with a white hair-like scale; the under surface clothed throughout with

coarser white scales, the metathoracic episterna with a line of fulvous scales along their inner edge, the

vestiture of the legs white. Eyes very narrowly separated. Rostrum comparatively short, rugulosely

punctate and carinate at the base. Joint 2 of the funiculus very little longer than 1, 3-7 short. Prothorax

transverse, gradually narrowed in front; densely, rather coarsely punctate, and obsoletely carinate.

Elytra deeply punctate-striate, the interstices rugose and somewhat convex. Mesosternum with a

- COPTURUS. 8)

flattened prominence on each side, between the cox, hollowed down the middle. Legs short; femora

| unidentate, the intermediate and posterior pairs carinate externally.

Length 23-3, breadth 14-14 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Four specimens. Smaller than C. cincticollis, the prothorax without an oblique white

streak on the flanks, the elytral vestiture seriately arranged, the markings different, the

under surface without transverse black spaces at the sides, the rostrum less elongate,

the joints 2-4 of the funiculus much shorter, the mesosternum with a flattened

prominence on each side.

36. Copturus albidus, sp.n. (Tab. VI. fig. 3.)

Elliptic, black, the antenne and tarsi fusco-ferruginous ; densely clothed above and beneath with white scales,

the scales on the upper surface fine, the elytra each with an indeterminate, rounded, blackish patch on

the disc towards the apex, a small spot on the humeral callus bare. Eyes extremely large, very narrowly

separated. Rostrum strongly arcuate, rugose and carinate at the base. Joint 2 of the funiculus nearly

as long as 3-7 united, 3 and 4 equal in length, 5 short, 6 and 7 transverse. Prothorax short, narrowing

from the base, feebly constricted in front, with broadly rounded ocular lobes; densely, finely punctate.

Elytra depressed along the suture anteriorly, finely punctate-striate, the interstices broad, flat, and

densely punctulate. Mesosternum flattened anteriorly, with a stout angular prominence on each side

between the middle coxe. Metasternum with a smooth, deep, foveiform impression in front, limited

posteriorly by a short curved ridge. Legs short; femora linear, unidentate beneath, the intermediate

and posterior pairs finely carinate externally.

Length 42, breadth 22 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Two specimens. This insect has the meso- and metasternum formed as in C. (Cypho-

copturus) tristis, Heller, but the legs are much more slender, and the femora are not

widened at the base. The dense white vestiture of the entire surface, a darker patch

near the apex of each elytron excepted, separates C. albidus from all the other forms

here described. ‘The tip of the rostrum is received in a deep foveiform cavity in the

mesosternum, much as in many Lechriops.

The following species differ in various respects from the typical members of the

genus Copturus, but they can remain under it for the present :—

37. Copturus furfuraceus. (Tab. VI. figg. 4, 4a.)

Pecilma furfuraceum, Germ. Ins. Spec. Nov. p. 260'.

Zygops furfuraceus, Schénh. Gen. Cure. iv. p. 623°.

Copturus furfuraceus, Boh. in Schénh. Gen. Cure. vi. 2, p. 101°.

Hoplocopturus furfuraceus, Heller, Abhandl. Mus. Dresd. no. 11, p. 50°.

Rhomboidal, flattened above, shining, black, the antenne ferruginous ; the vestiture rather close: the head

with a line around the eyes (abraded above), the basal half of the rostrum, and the prothorax with the

sides broadly and a narrow faint median vitta, fulvous, the rest of its disc black ; the elytra black, with

86 RHYNCHOPHORA.

three oblong spots on the suture (at the base, middle, and apex), and a spot on the eighth interstice

beyond the middle, white, and a spot on the shoulder, another near the scutellum, and several smaller

ones scattered over the disc, fulvous; the flanks of the prothorax clothed with ochreous, and the rest of

the under surface with scattered white, scales, a broad space down the middle of the first ventral segment,

and the anterior half of the second, bare, the white scales on each of the following two segments condensed

into two transverse spots; the vestiture of the anterior legs fulvous, whitish at the base, that of the

others in part white, the posterior pair black in their outer half. Eyes moderately large, subcontiguous

above, acuminate below. Rostrum rugulose and feebly tricarinate in its basal half and finely punctate

thence to the apex. Antenne with an ovate club, its first joint barely as long as the others united ;

joint 2 of the funiculus about as long as 3-7 united, 3 and 4 short, subequal in length, 5-7 transverse.

Prothorax transverse, conical ; closely, rather coarsely punctate, and also carinate. Elytra subtriangular,

rounded at the sides anteriorly, obliquely truncate at the apex, depressed along the suture; punctate-

striate, the interstices thickly punctate and rather convex. Mesosternum vertical, excavate, the depression

limited on each side by an oblique ridge. Metasternum triangularly depressed between the middle coxe.

Legs rather short; femora unidentate, the posterior pair barely reaching the apex of the abdomen, and

(like the intermediate pair) carinate externally ; intermediate and posterior knees with a long sharp spine,

the anterior knees with a shorter spine.

Length 53, breadth 3 millim.

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).—Braziu1 2%, Rio Janeiro

and Espirito Santo (coll. Fry).

One specimen, in very fresh condition. The identification of this species is somewhat

doubtful, Boheman not mentioning the three short white streaks on the suture, &c.

I have seen, however, various examples from Brazil agreeing very nearly with the

Chiriqui insect, from which the above description is taken.

38. Copturus latitarsis, sp. n.

Subelliptic, short, black, the antennz, rostrum, and legs, a very large, broad, heart-shaped, common patch on

the disc of the elytra (extending from about the basal third to near the tip), and their apical margin,

ferruginous; the elytra with a few coarse white scales around the scutellum and a piliform whitish scale

in each of the seriate punctures (the rest of the vestiture of the upper surface abraded) ; the under surface

clothed with coarse white scales, the vestiture of the legs also white. Eyes large, almost contiguous in

front, separated above by a narrow lanciform space. Rostrum rather slender, widened, rugulose, and

carinate at the base. Joint 2 of the funiculus a little longer than 1. Prothorax transverse, rounded at

the sides, narrowed and constricted in front; densely, rather coarsely punctate, and finely carinate.

Elytra short, somewhat rounded at the sides ; deeply punctate-striate, the interstices not wider than the

the striw, rugulose. Meso- and metasternum flattened between the middle coxe. Ventral segments

gradually ascending, 2 not longer than 3 and 4 united, 1 depressed down the middle. Legs short and

stout ; femora with a minute tooth beneath ; tarsi broad, the claws minute.

Length 2, breadth 1,1, millim. (<¢.)

Hab. GuaTEMALA, Cahabon in Vera Paz (Champion).

One worn example, differing from all its allies in the short, stout, ferruginous legs,

with rather broad tarsi; the elytra with broad striew, the femora each with a very

minute tooth, the ventral segments gradually ascending, the second comparatively

short. C. latitarsis will doubtless have to be removed from the genus Copturus w

more specimens are available for examination.

hen

ZURUS. 87

ZURUS.

Zurus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 3, 5 (1895); Tijdschr. voor Ent. xl. p. 199 (1897).

This genus includes various Tropical-American forms, four occurring within our

limits. They are easily recognizable by the angularly produced basal lobe of the

prothorax, which fills the scutellar cavity (the scutellum itself not being visible), the

deeply excavate horseshoe-shaped mesosternum, and the equally unidentate femora.

The Central-American species may be separated thus :—

Joint 2 of the funiculus much longer than 1.

Prothorax with a red collar in front, the posterior lobe ochreo-trivittate ;

elytra without definite markings See

Prothorax red, with a transverse black patch on the disc; elytra with

large red patches . 2. 2... we ee ee ee eee COCCInatUS, SP. TL

Joint 2 of the funiculus not longer than 1; prothorax red, with a transverse

black patch on the disc.

Elytra with longitudinal red stripes and patches . . . . . . . « maculicollis, sp. n.

Elytra with four large white spots . . . . . 2...) .) ) ) Oaurivillianus, Heller.

sanguinicolls, sp. 0.

1. Zurus sanguinicollis, sp.n. (Tab. VI. figg. 5, 5a.)

Elliptic, black, the antennz ferruginous, the vestiture rather coarse: the head with an ochreous line around

the eyes above, the sides vermilion-red; the prothorax with three vitte on the posterior half of the disc

and three spots at the sides (the outer two scarcely visible from above) pale ochreous, the anterior portion

vermilion-red ; the elytra rather sparsely clothed with small narrow ochreous and white scales, which are

condensed into short streaks and spots towards the base, the seriate punctures each bearing a white

scale; the under surface clothed in part with coarse white scales, the ventral segments 1 and 2 with two

bare black stripes, which extend outwards along the apical portion of each segment. Eyes almost

contiguous in front. Joint 2 of the funiculus elongate, much longer than 1. Prothorax transverse,

rounded at the sides, narrowed and strongly constricted in front; coarsely, densely punctate, and

subcarinate. lytra cordate, broadly flattened on the disc, the outer apical portion depressed and

obliquely truncate, the apex itself sinuato-truncate, the humeri swollen, bare, and shining, the base

sharply margined; punctate-striate, the interstices densely rugose. Femora sharply unidentate, the

posterior pair acutely produced at the apex.

Length 53, breadth 34, millim.

Hab. Wonvuras (Mus. Brit.).

One specimen, received at the British Museum in 1545. This insect has the

prothorax coloured very much as in Copturus tricolor, from which it is easily separable

by the more rugose sculpture, the shorter, cordate elytra, the non-visible scutellum, &c.

2. Gurus coccinatus, sp. n. (Tab. VI. figg. 6, 6a.)

Broad, rhomboidal, shining, black, the antenne ferruginous ; the sides of the head, the prothorax (a transverse

patch on the disc behind and the basal margin excepted), a large, common, subtriangular patch on the

basal half of the suture of the elytra (extending outwards to the third row of punctures), a curved mark

at the apex, and a large spot on the outer part of the disc at about the middle, vermilion-red, the

prothorax with a row of narrow pale brownish scales along the basal margin; the base of the rostrum,

the anterior portion of the prosternum, the mesothoracic epimera, the metasternum, the ventral segments

88 RHYNCHOPHORA.

1 (except at the sides in front) and 2, and a spot on each side of 5, clothed with coarse white scales; the

rest of the upper and under surfaces bare or with scattered fine, narrow, dark scales ; the vestiture of the

legs whitish. Eyes almost contiguous in front. Joint 2 of the funiculus as long as 3 and 4 united.

Prothorax short, rather convex, narrowing from the base, constricted in front; closely, coarsely punctate,

and subcarinate. Elytra broad, subcordate, broadly flattened on the disc, sharply margined at the base ;

punctate-striate, the interstices rugose. Beneath closely punctate, the mesothoracic episterna bare and

almost smooth. Femora sharply unidentate.

Length 43-44, breadth 23 millim.

Hab. Nicaracua, Chontales (elt).

Two specimens. Distinguishable by its rhomboidal’ form and the vermilion-red

markings. ‘The elytral spots are placed very much as in Z. aurivillianus, but the apical

one is strongly curved.

8. Zurus maculicollis, sp.n. (Tab. VI. fig. 7.)

Subelliptic, black, the antennez ferruginous ; the head with a line of fulvous scales around the eyes above, the

prothorax vermilion-red, with a transverse black patch on the middle of the disc, the elytra with a

sinuous stripe on each side of the suture (the stripes becoming coalescent towards the base and apex) and

a large, elongate, anteriorly attenuate patch at the sides, vermilion-red ; the vestiture of the legs and

under surface white or yellowish-white, a patch on the flanks of the prothorax and another in the middle

of the ventral segments 3 and 4 sparsely squamose or almost bare, Eyes almost contiguous in front.

Joint 2 of the funiculus scarcely so long as 1. Prothorax transverse, rather convex, narrowing from near

the base; densely punctate and subcarinate. Elytra subcordate, flattened on the disc; deeply punctate-

striate, the interstices rugose. Femora unidentate. Ventral segment 1 broadly depressed down the

middle, and 5 sharply, narrowly sulcate, and pilose at the tip, in the ¢.

Length 3-33, breadth 12 millim. (6 @.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

One pair. Near Z. aurivillianus, but with the elytral markings red and in the

form of longitudinal stripes or patches. Z. besckei (Boh.) is another allied form, with

transverse red fascia on the elytra.

4, Zurus aurivillianus, (Tab. VI. fig. 8.)

Zurus aurivillianus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 6, 9".

Copturus quadrimaculatus, Jekel, in litt.’.

Hab. Mexico, Guadalajara (Flohr), Amula (H. H. Smith).—Coromsra (Mus. Brit.) ;

VENEZUELA!; Braziu!.

Four specimens of this widely-distributed Tropical-American insect have been

received by us from Mexico. It is easily known by the red vestiture of the prothorax,

with a transverse black patch of variable extent on the disc, and the four large white

spots on the elytra, the vertex and humeri often with a small white spot, the meta-

sternum and first two ventral segments in great part white, the other segments black

with the sides white. ‘The second joint of the funiculus is scarcely so long as the first.

| have seen one of the types from Caracas.

MICROZURUS. 89

MICROZURUS.

Microzurus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 3, 13 (1895).

Microzurus is based upon a single species from Bahia, which also occurs within our

limits. It differs from Zurus in having very minute tarsal claws, the posterior femora

only dentate, &c. Two small forms are now added, one with a very shallow mesosternal

depression, a short, feebly convex prothorax, &c., and the other with unarmed posterior

femora and a flattened mesosternum.

1. Microzurus rhombus. (Tab. VI. figg. 9, 9a.)

Microzurus rhombus, Heller, Abhandl. Mus. Dresd. no. 11, p. 13, fig. 31 (antenna) '.

Hab. Mexico, Cerro de Plumas, Atlantic slope (Hége).—Brazit, Bahia !.

One specimen. I have not seen cither of the types, but the Mexican insect agrees

fairly well with the description, except in its smaller size (length 24 millim.). The

elytra have the apical half of the suture densely clothed with whitish scales.

2. Microzurus trinotatus, sp. n. (Tab. VI. figg. 10, 10 a.)

Rhomboidal, shining, black, the apical margin of the elytra and the tarsi ferruginous ; the elytra with a spot

on each side of the scutellum and another on the suture beyond the middle, this latter extending down

the suture to the tip and continued along the apical margin, densely clothed with rather coarse white

scales, the lower part of the head, the basal half of the rostrum, and the flanks of the prothorax also

somewhat thickly, and the rest of the under surface and the legs sparsely, albo-squamose. Eyes narrowly

separated above, subcontiguous in front, the infra-ocular portion of the head broad and flattened.

Rostrum strongly arcuate, rather stout, rugulose and carinate at the base, the apical half almost smooth.

. Joint 2 of the faniculus much shorter than 1. Prothorax about twice as broad as long, narrowing from

the base, somewhat convex, the median lobe narrow ; coarsely, closely punctate, without trace of median

carina. Elytra cordate, convex, much wider than the prothorax ; deeply punctate-striate, the interstices

smooth and sharply costate. Mesosternum with the oblique lateral lamina feebly developed, the broad

intervening space slightly depressed. Legs short; femora sulcate beneath, the posterior pair only dentate,

finely carinate externally ; tarsi moderately stout, the claws very minute.

Length 13, breadth 1 millim.

Hab. Panama, Bugaba (Champion).

One specimen.

3. Microzurus edentatus, sp.n. (Tab. VI. figg. 11, 11a.)

Rhomboidal, convex, black, the elytra mottled with ferruginous, the head, rostrum, antenns, knees, tibie, and

tarsi similarly coloured; variegated above with small, narrow, scattered, ochreous, whitish, and black

scales, the ochreous and whitish scales condensed into a short streak at each hind angle of the prothorax,

and an interrupted ante-median fascia and an apical patch on the elytra, the vestiture of the legs and:

under surface entirely pale. Eyes rather small, oval, contiguous. Rostrum moderately stout, feebly

curved, slightly widened towards the tip, thickly punctate, except along the smooth median line, Joint 2

of the funiculus shorter than 1. Prothorax convex, transverse, narrowing from the deeply sinuate base,

feebly constricted in front; densely, finely punctate, and also carinate. Scutellum minute, depressed,

hidden by the median lobe of the prothorax. Elytra transversely convex, broad, cordate, blunt at the

tip; punctate-striate, the interstices narrowly costate. Mesosternum transversely depressed, without

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, December 1906. NN

90 RHYNCHOPHORA.

trace of lamin. Intercoxal portion of the metasternum very broad, flattened, declivous in front. Legs

short and stout; femora unarmed, the anterior pair subclavate; third tarsal joint broadly bilobed, the

claws very minute.

Length 14, breadth 145 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen, with the prothorax slightly malformed on the right side.

PSEUDOLECHRIOPS, gen. nov.

Head with the eyes abeut as broad as the prothorax, the eyes large and separated in front by rather more

than the width of the smooth apical portion of the rostrum; rostrum as long as the head and prothorax,

flattened, almost straight, widened at the base, the antenne inserted behind the middle, joint 2 of the

funiculus much longer than 1, joint 1 of the club as long as the others united; prothorax short,

subcylindrical, deeply sinuate at the base, without ocular lobes; scutellum convex, exposed ; elytra

proad, subcordate ; pygidium not visible ; mesothoracic epimera narrowly ascending ; rostral canal deep,

reaching as far as the apical margin of the middle coxa, the walls complete ; ventral segments rapidly

ascending ; legs moderately long; femora sharply unidentate, the posterior pair reaching a little beyond

the apex of the abdomen, the intermediate and posterior pairs finely carinate externally, the knees

unarmed ; posterior tibie broadly dilated to near the apex and abruptly narrowed thence to the tip;

third tarsal joint bilobed, a little wider than the second, the claws divergent.

Type, Ps. megacephalus.

This genus approaches Tachylechriops, Heller, based on a single species from

Cayenne, from which it differs in the broad head, the somewhat widely separated

eyes, the almost straight, flattened rostrum, the short, subcylindrical prothorax, the

less elongated hind legs, the broad, emarginate posterior tibia, &c.* The form

of the hind legs, the non-contiguous eyes, &c., distinguish Pseudolechriops from

Lechriops. |

1. Pseudolechriops megacephalus, sp.n. (Tab. VI. figg. 12, 124, 6.)

Black, the antenna, tarsi, anterior tibia, and outer half of the rostrum ferruginous (the prothorax and elytra

rufescent in one specimen); the vestiture sparse and fine, ochreous and uniformly distributed on

the head and prothorax; the elytra each with a broad oblique whitish fascia beyond the middle,

a space along the suture thence to the base, and the base itself, clothed with fine ochreous hair-

like scales, the rest of their vestiture sparser and darker, that of the under surface and legs white.

Head densely, rugulosely punctate, hollowed between the eyes; rostrum rugulose at the base, shining,

the outer half smooth. Prothorax transverse, scarcely widened at the base, constricted in front; densely

punctate and obsoletely carinate. Elytra depressed along the suture anteriorly, sharply punctate-striate

(the strive narrow, with oblong punctures), the interstices broad, rugulose, and almost flat.

Length 3,1,-34, breadth 1§ millim.

Hab. Guatemata, San Isidro and Pantaleon (Champion).

‘Two specimens, both from the “tierra caliente” of the Pacific slope, one of them

slightly immature.

* In the Fry Collection at the British Museum there is an allied undescribed form from Brazil, but it could

not be included in either of these genera.

LECHRIOPS. 91

LECHRIOPS.

Lechriops, Schénherr, Cure. Disp. Meth. p. 8306 (1826); Gen. Cure. iv. p. 259; Lacordaire, Gen.

Col. vi. p. 149 ; Heller, Abhandl. Mus. Dresd. no. 11, pp. 38, 14.

Gelus, Casey, Ann. N. York Acad. Sci. ix. pp. 667, 668 (1897).

Under this genus are included a large number of small forms closely related to

Copturus, with the mesosternum, and often the intercoxal portion of the metasternum

also (fig. 13 6), excavate for the reception of the rostrum; the femora unidentate, the

anterior pair without strigose area, the posterior pair not reaching beyond the apex of

the abdomen, and usually more or less distinctly carinate externally, the knees unarmed

or feebly spined; and the second joint of the funiculus moderately elongate *, often

not longer than the first. The numerous allied species with unarmed, non-carinate

femora belong to Kulechriops, Faust, and are here placed under that generic name.

The type of Lechriops is Khynchenus sciurus, Fabr.+, a 8.-American insect with

a comparatively short rostrum and correspondingly short antenne, and about twenty

other forms are referred to the same genus by Dr. Heller (though none were

described by him) in his important work on the American Zygopides. Upwards of

thirty species are here recognized from within our limits, but some of these are so

imperfectly segregated that it is almost impossible to separate them satisfactorily, as

they differ only in the size, colour, and arrangement of the scales, characters that

may prove to be more variable than is generally supposed.

The following table will assist in the identification of the Central-American forms :—

a. Rostral canal extending into the intercoxal portion of the metasternum.

a’. Joint 2 of the funiculus as long as or longer than 1; elytral interstices

wider than the striz (except in L. canescens).

a*, Prothorax hollowed at the apex, with broadly rounded ocular lobes ;

eyes very large; joint 4 of the funiculus longer than 3 in the 2 . . Species 1.

b*. Prothorax less hollowed or truncate at the apex, without definite ocular

lobes; joint 4 of the funiculus not longer than 3.

a’. Body oblong-ovate; elytra with a white spot on the suture, the

alternate interstices rufescent . . . . . . . . . . . ~ . Species 2.

5°. Body rhomboidal, ovate, or elliptic.

a’. Meso- and metasternal excavation shallow; vestiture of body

coarse and white . ....... =... . =. . . . Species 3-5.

6". Meso- and metasternal excavation deep.

a’. Elytral interstices almost smooth, the inner ones finely punctate,

the strie narrow, deep, and sharply cut ; vestiture of body fine. Species 6.

* Except in L. copturoides.

t We are indebted to Dr. Aurivillius for the loan of the ahraded example of this species in the Stockholm

Museum.

NN 2

92 RHYNCHOPHORA.

6°. Elytral interstices rugose or punctate.

a’. Prothorax without whitish lateral stripe or spot, the elytra

with or without a white spot at the middle of the suture. . Species 7-30.

6°. Prothorax with a broad lateral stripe, or the entire flanks, and

the elytra with a more or less distinct spot at the middle of

the suture, white or pale ochreous . . . os Species 31-34.

. Prothorax with a broad lateral stripe, and the elytra with a

spot on the shoulders and the apex, white. . . . Species 35.

. Joint 2 of the funiculus shorter than 1; prothorax and elytra with white

spots, the elytral interstices not wider than the striz .

6. Rostral canal not extending beyond the mesosternum; joint 2 of the

funiculus much longer than 1

Species 36.

Species 37, 38.

1. Lechriops copturoides, sp. n. (Tab. VI. figg. 13, 13 a-c, 2.)

Subovate, piceous or nigro-piceous, the antenne, tarsi, and apical margin of the elytra ferruginous; the

vestiture close, the scales on the elytra very small, oval, and somewhat imbricate: the whitish or pale

ochreous scales on the prothorax condensed into three broad vitte, and those of the elytra into a broad

sutural stripe and two or more broad, transverse or oblique fasci, which are sometimes divided or much

interrupted, the rest of the upper surface brownish or fuscous; the flanks of the prothorax and the

under surface densely clothed with coarser whitish scales, the vestiture of the legs also whitish. Eyes

very large, occupying the whole of the side of the head, subcontiguous. Rostrum rather slender,

rugulose and subcarinate at the base. Joint 2 of the funiculus elongate, about as long as 3-5 united,

4 longer than 3 in the 9, 5-7 transverse. Prothorax short, narrowing from the base, hollowed at the

apex, and with broad prominent ocular lobes; densely, rugulosely punctate, and subcarinate. Elytra

somewhat rounded at the sides, blunt at the tip, depressed along the suture; deeply punctate-striate,

the striae narrow, the interstices broad, rugulose, and feebly convex. Rostral canal deep, the walls

prominent, the cavity in the metasternum extending backward beneath the surface.

Length 23-37, breadth 13-14 millim. (d 9.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé); Panama, Bugaba, Volcan de Chiriqui

(Champion).

Fifteen specimens, eight of which are from Chiriqui. ‘This species is very like some

of the smaller Copturz, but the rostral canal is so deeply excavate posteriorly that the

rostrum can be completely locked in at the will of the insect. The fourth joint of

the funiculus is slightly elongated in the female, as in Copturus gracilis and C. fulvo-

maculatus. The markings are variable, but there is always a transverse dark patch

near the apex of each elytron.

2. Lechriops oblongulus, sp.n. (Tab. VI. fig. 14.)

Oblong, dull, black, the alternate elytral interstices rufescent, the apical half of the rostrum, the antenne,

tibia, and tarsi ferruginous ; the head with a line of fulvous scales around the eyes; the prothorax

thickly clothed with rather long, coarse, fulvous scales, with a few white ones intermixed on the disc ;

the elytra with a small transverse white patch at the middle of the suture, a white dot in a line with it

on the eighth interstice and another on the shoulder, and for the rest sparsely clothed with small,

narrow, intermixed fulvous and cinereous scales; the vestiture of the under surface and legs similarly

coloured. Head rather small; eyes moderately large, narrowly separated ; rostrum rugulosely punctate

and carinate at the base; joints 1 and 2 of the funiculus equal in length. Prothorax transverse,

LECHRILOPS. 93

gradually narrowing from about the basal third, constricted in front; densely, finely punctate, and also

carinate. Elytra a little wider than the prothorax, rather long, bluntly rounded at the apex, the sutural

region strongly depressed from the base to the middle; shallowly punctate-striate, the interstices flat

and rugulose. Rostral canal reaching as far as the posterior margin of the middle coxe, becoming

shallow posteriorly. Femora dentate, the tooth on the anterior pair almost obsolete.

Length 3-3}, breadth 12-14 millim.

Hab. Mexico, Ciudad in Durango (//6ge).

Two specimens. Very like a Californian insect sent me by Mr. Wickham under

the name of Piazurus californicus, Lec.*, but with the vestiture of the elytra

finer and that of the prothorax almost entirely fulvous, the sutural depression much

deeper, the alternate elytral interstices rufescent, and the rostral canal a little longer.

Both species are rather elongate in shape.

3. Lechriops albisquamis, sp. n. (Tab. VI. figg. 15, 15a.)

Subovate, robust, black, the antenne and the tips of the tarsi obscure ferruginous ; rather sparsely clothed

with coarse, narrow, white scales, the prothorax with two small, elongate-triangular spaces on the disc,

and the elytra with a narrow, irregular, angulate fascia below the base, a spot on the shoulder, another

on the disc towards the apex, and a patch at the sides, almost bare, the seriate punctures of the elytra

each with a narrow white scale; the posterior femora with a broad black patch at the middle. Head

broad ; eyes very large, narrowly separated; rostrum carinate and rugosely punctate at the base, very

sparsely, finely punctate in its outer half; joint 2 of the funiculus a little longer than 1. Prothorax

short, somewhat gibbous on the disc, gradually narrowing forwards, constricted in front, deeply bisinuate

at the base; coarsely, closely punctate, and sharply arcuato-carinate. LElytra subcordate, truncate at

the apex; deeply punctate-striate, the interstices a little wider than the strie, flattened, and rugose.

Mesosternal depression shallow, that of the metasternum small and foveiform. Legs short and stout ;

femora sharply unidentate ; intermediate and posterior knees dentate.

Length 34, breadth 2 millim.

Hab. Guatemaua, San Juan in Vera Paz (Champion).

One specimen. JL. albisquamis is one of those forms that are almost intermediate

between Copturus and Lechriops, the mesosternal depression being shallow. The

coarse white vestiture of the prothorax and elytra is somewhat evenly distributed ;

the bare spaces are small and inconspicuous.

4. Lechriops canescens, sp.n. (Tab. VI. fig. 16.)

Very near L. albisquamis, the vestiture a little finer; the prothorax with the two bare spaces on the disc

larger, the elytra with a broad triangular space below the base (extending inwards to the second stria)

and a large apical patch sparsely clothed with black or black and white scales (leaving the base, suture,

and a broad oblique fascia beyond the middle white); the prothorax less convex on the disc and with the

median carina not so prominent; the elytral interstices scarcely wider than the strie; the legs more

slender, the tooth on the anterior femora long and narrow; the meso- and metasternal excavations

shallow.

Length 22-3, breadth 1? millim.

Hab. PanaMa, Bugaba (Champion).—CotomBia (Mus. Brit.).

* Placed by Casey in his genus Gelus.

94 RHYNCHOPHORA.

Three specimens from Bugaba and one from Colombia. ‘This insect is the southern

representative of the Guatemalan ZL. albisquamis, and requires a separate name.

L. canescens is also very like L. (Copturus) senex, Pasc., from Parana, but is smaller

and less robust, the prothorax is shorter, and the vestiture is not so coarse, the white

scales forming definite markings on the elytra.

5. Lechriops squamirostris, sp.n. (Tab. VI. figg. 17, 17 a.)

Ovate, opaque, black, the antenns, tarsi, and apical margin of the elytra ferruginous ; somewhat thickly

clothed with narrow white scales, which are subseriately arranged on the elytra, their eighth interstice

with a small white spot beyond the middle, the prothorax with a few darker scales intermixed ; the

rostrum densely albo-squamose to near the tip; the under surface thickly clothed with coarse white

scales, the vestiture of the legs also white. Head rather small; eyes subcontiguous, moderately large ;

rostrum rugulose and sharply carinate to near the tip; joint 2 of the funiculus as long as 3-5 united,

5-7 transverse. Prothorax short, rounded at the sides, narrowed and feebly constricted in front; closely

punctate and feebly carinate. Scutellum small. Elytra subcordate ; punctate-striate, the interstices

rugulose and a little wider than the strie. Meso- and metasternal depression shallow, the latter limited

posteriorly by a v-shaped ridge.

Length 3, breadth 15 millim. (¢.)

Hab. British Honpuras, Rio Hondo (Blancaneauz).

One specimen. In this species the rostrum is sharply carinate and densely

squamose to near the tip; the vestiture of the upper surface is white and almost

equally distributed; and the second joint of the funiculus is very much longer than

the first. :

6. Lechriops exsculptus, sp. n.

Subrhomboidal, shining, nigro-piceous, the antenna, tibie, tarsi, and apical margin of the elytra ferruginous ;

the vestiture very sparse, fine: the head with a line around the eyes, and the prothorax with three

narrow vitte on the dise and one on each flank, ochreous; the elytra with a short narrow streak at the

middle of the suture, and a spot in a line with it on the eighth interstice, white, the rest of their surface

with scattered ochreous and white hair-like scales ; the under surface and legs white, the posterior femora

with an almost bare space beyond the middle. Head with a fine carina on the vertex; eyes large,

somewhat flattened in front, subcontiguous ; rostrum rugulose and subcarinate at the base ; joint 2 of

the funiculus elongate, nearly as long as 3-5 united; antennal club stout, ovate. Prothorax short,

conical; densely punctate, the punctures transversely confluent on the disc, the latter sharply arcuato-

carinate. Scutellum smooth. Elytra broad, rounded-triangular, depressed along the suture, the humeri

smooth and prominent; sharply, deeply striate, the striz finely punctate, the dorsal interstices narrow,

subcarinate on each side, and with fine scattered punctures, the outer interstices broad, smooth,

and almost bare. MRostral canal deep, extending as far as the apical margin of the middle coxe,

the walls complete. Legs rather slender; femora sharply unidentate, the intermediate and posterior

knees acute.

Length 23, breadth 13 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. A _ small species, with sharply carinate, short prothorax and

subtriangular elytra, the latter with deeply-cut strie and almost smooth outer

interstices.

LECHRIOPS. 95

7. Lechriops amplipennis, sp. n. (Tab. VI. fig. 18.)

Subrhomboidal, shining, black, the antenns, tarsi, and apical margin of the elytra ferruginous ; sparsely

clothed with very small, narrow, blackish and white scales, the latter condensed on the prothorax into a

faint, interrupted median line and a spot near each angle, the white scales on the elytra entirely

clustered into a few small spots and narrow streaks (one at the middle of the suture and another at its

apex, a streak on the interstices 3 and 5, and a spot on 7 and 8); the vestiture of the under surface

sparse, piliform, white, that of the legs also white, the posterior femora with a black patch beyond the

middle. Head rather small; eyes almost contiguous, strongly acuminate below ; rostrum rugulose and

finely carinate at the base, the basal portion very little widened ; joint 2 of the funiculus slightly longer

than 1. Prothorax short, subconical; closely, finely punctate, and subcarinate. Elytra very much

wider than the prothorax, subcordate, blunt at the apex, rather convex, the sutural region depressed

anteriorly ; deeply punctate-striate, the interstices wider than the striw, punctulate, the outer ones

rather convex. Rostral canal deep, extending a little beyond the mesosternum. First ventral segment

shallowly sulcate down the middle. Legs short.

Length 22, breadth 13 millim. (¢?)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. A peculiar little species, with a short, subconical, comparatively

narrow prothorax, and broad, rather convex, subcordate elytra, the white scales on the

shining upper surface wholly clustered into a few small scattered spots and narrow

streaks, the rostrum very little widened at the base. It has the same general shape

as L. exsculptus.

8. Lechriops alboguttatus, sp. n. (Tab. VI. fig. 19.)

Subovate, robust, shining, black, the antenne, the apical margin of the elytra, and the tarsi in part,

ferruginous ; variegated with fine blackish and coarser white scales, the white scales on the prothorax

condensed into eight spots (the one on each side at the base large, rounded or subquadrate, and the one

on the anterior part of the flanks not visible from above), and those on the elytra into a transverse spot

at about the middle of the suture, an oblong streak at its apex, and various scattered spots or more or

less interrupted undulate fascie (the fascia extending from the base of the suture to below the humeri

sometimes complete) ; the under surface (a transverse almost bare space on each side of the abdomen

excepted) and legs also clothed with white scales, the posterior femora with a blackish annulus towards

the apex. yes narrowly separated. Rostrum rugulose and carinate at the base. Joint 2 of the

funiculus considerably longer than 1. Prothorax transverse, narrowing almost from the base, constricted

in front; densely, rather finely punctate, and feebly carinate. Elytra somewhat rounded at the sides,

blunt at the apex, depressed along the suture anteriorly ; deeply punctate-striate, the interstices rather

broad, flat, and rugulose. Rostral canal deep, extending to the front of the metasternum. Femora

sharply dentate.

Var.? Smaller, the prothorax with a narrower, oblong, whitish patch on each side at the base.

Length 33-4, breadth 2-21 millim.

Hab. Guatemana, Sinanja and Purula in Alta Vera Paz (Champion).

Many specimens, all but one from Sinanja. The small form (length 21-3 mm.)

is represented by two specimens from Purula. Recognizable by the numerous

well-defined white spots on both the prothorax and elytra, and by the rather finely

punctured prothorax. 'The white scales are rather coarse.

96 RHYNCHOPHORA.

9. Lechriops rufomaculatus, sp.n. (Tab. VI. fig. 20.)

Elliptic, rather long, shining, black, the antenne (the club excepted), the apical half of the rostrum, a broad

space at the base of the elytra (extending outwards to the humeri), their apical margin, and the legs in

great part, reddish or ferruginous; the vestiture fine, sparse, that on the prothorax white and ochreous

intermixed, clustered into three faint vitte on the disc and various streaks on the flanks, that on the

elytra ochreous, white, and black, the white scales clustered into a short streak at the middle of the

suture, another at its apex, and a small spot on the eighth interstice, the ochreous scales condensed into

various faint, interrupted, undulate fascie# ; the clothing of the legs and under surface sparse and fine,

the posterior femora with a dark patch near the apex. Eyes very large, narrowly separated. Rostrum

rugulosely punctate and carinate to about the middle. Joint 2 of the funiculus distinctly longer than 1;

Prothorax short, gradually narrowing from the base; densely, finely punctate, except along the slightly

raised smooth median line. Elytra subcordate, blunt at the apex; deeply punctate-striate, the interstices

punctulate, the outer ones rather convex. Rostral canal deep, extending as far as the posterior margin

of the middle coxee. Femora feebly dentate, the posterior pair about reaching the apex of the abdomen.

Length 23-2,%,, breadth 12-1} millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Two specimens. Recognizable by the broad reddish patch at the base of the elytra,

the fine vestiture (which is clustered into small spots and interrupted undulate fasciz

on the elytra), the very large eyes, and the feebly dentate femora.

10. Lechriops rugicollis, sp. n.

Subovate, robust, black, the antenna, the tips of the tarsi, and sometimes the apex of the rostrum and the

apical margin of the elytra also, ferruginous ; the prothorax with scattered, fulvous and white, hair-like

scales, which are clustered into patches at the sides and along the middle, the elytra variegated with

small, narrow, intermixed fulvous, white, and black scales; the vestiture of the under surface and legs

rather sparse, fine, white. Eyes large, very narrowly separated. Rostrum rugulose and sharply carinate

at the base. Joint 2 of the funiculus elongate, about twice as long as 1. Prothorax transverse, rapidly

narrowing from near the base, constricted in front; coarsely, rugosely punctate, except along the

irregular, smooth, slightly raised median line, the punctures on the disc transversely confluent and those

on the flanks separate one from another. Elytra subcordate, obliquely truncate at the tip, depressed

along the suture anteriorly ; punctate-striate, the strie narrow, the interstices rugose, broad, and almost

flat. Rostral canal rather broad and deep, the metasternal excavation triangular. First ventral segment

slightly depressed down the middle in the ¢. Intermediate and posterior knees dentate.

Length 4-44, breadth 23-24 millim.

Hab. Guaremata, Panima in Vera Paz (Champion); Panama, Bugaba, Volcan de

Chiriqui (Champion).

Four specimens, the one from the Volcan de Chiriqui having the prothorax a little

less rugose and the vestiture of the upper surface almost wholly black and white.

This species is chiefly distinguished by the long second joint to the funiculus, the

transversely rugose prothorax, and the rather fine vestiture, the elytra without definite

white spot at the middle of the suture.

11. Lechriops vicinus, sp. n.

Elliptic, robust, shining, nigro-piceous, the elytra sometimes rufo-piceous, the antenne, the apical margin of

the elytra, and the tips of the tarsi ferruginous; the prothorax with scattered, narrow, ochreous scales,

which are mostly clustered at the sides and down the middle; the elytra sparsely clothed with narrow,

LECHRIOPS. 97

intermixed ochreous, white, and blackish scales, the white scales condensed into a short streak at the

middle of the suture and the ochreous ones into small scattered fascicles; the vestiture of the under

surface coarse and whitish, that of the legs also white. Head rather small; eyes moderately large,

subcontiguous; rostrum rugulose and sharply carinate at the base; joint 2 of the funiculus elongate,

nearly as long as 3-6 united. Prothorax transverse, narrowing from the base; coarsely, rugosely

punctate, except along the smooth, slightly raised, median line, the punctures on the flanks very coarse.

Elytra deeply punctate-striate, the interstices rugose, flat. Rostral canal deep, the metasternal excavation

triangular. First ventral segment depressed down the middle in the ¢. Intermediate and posterior

knees acutely dentate.

Length 33, breadth 14-1,%, millim.

Hab. Panama, Bugaba (Champion).

Four specimens. Narrower than L. rugicollis, the eyes not so large, the elytral

vestiture sparser, the ochreous scales clustered into small scattered fascicles, the striz

deeper and broader, the under surface with larger scales.

12. Lechriops nitidicollis, sp.n. (Tab. VI. fig. 21.)

Subovate, shining, black or piceous, the antenne, the tips of the tarsi, and the apical margin of the elytra

ferruginous ; the prothorax sparsely clothed with long, narrow, fulvous and white scales, which are

clustered into patches at the sides and along the middle; the elytra with coarse, narrow, intermixed

white, fulvous, and blackish scales, the white scales clustered into various scattered patches; the vestiture

of the under surface and legs rather sparse, white, sometimes in part fulvous, the posterior femora with

a dark patch on their outer face. Eyes large, very narrowly separated. Rostrum carinate and rugulose

at the base. Joint 2 of the funiculus elongate, much longer than 1. Prothorax short, narrowed from

near the base, constricted in front; coarsely, closely punctate, except upon the raised median line, the

narrow interspaces also smooth and shining. Elytra much wider than the prothorax, blunt at the apex ;

punctate-striate, the interstices rugose, the outer ones fecbly, narrowly costate. Rostral canal deep,

extending to the anterior portion of the metasternum. Intermediate and posterior knees acutely

dentaie.

Length 23-34, breadth 13-2 millim.

Hab. Mexico, Teapa (i. H. Smith); Guaremana, Panima in Vera Paz (Champion).

Seven specimens, all but one from Teapa. Shorter than L. vicinus, the vestiture

of the upper surface much coarser, the white scales clustered into various patches on

the elytra (the fulvous scales sometimes as numerous as the white ones, and sometimes

almost wanting), the outer interstices narrowly costate.

13. Lechriops albovariegatus, sp.n. (Tab. VI. fig. 22.)

Subovate, black, the antenns, the apical margin of the elytra, and the tarsi wholly or in part, ferruginous ;

the vestiture fine, black and white intermixed, the scattered white scales on the prothorax condensed

into six spots or three interrupted vittee on the disc and some irregular markings on the flanks, and those

on the elytra into various interrupted undulate fasciee and a short faint streak at the middle of the

suture, the latter sometimes wanting ; the clothing of the under surface and legs sparse, fine, and white,

the posterior femora with a dark patch towards the apex. Eyes large, very narrowly separated.

Rostrum rugulosely punctate and carinate at the base. Joint 2 of the funiculus distinctly longer than 1.

Prothorax short, narrowed and constricted in front; densely punctate and feebly carinate. Elytra

subcordate, blunt at the apex; deeply punctate-striate, the interstices rugose and almost flat. Rostral

canal deep, reaching the anterior portion of the metasternum.

Length 21-31, breadth 13-2 millim.

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, December 1906. 00

98 RHYNCHOPHORA.

Hab. Mexico, Teapa (7. H. Smith); Guatemata, Sinanja and Cachil in Vera Paz

(Champion).

Five specimens, the description being taken from the three from Sinanja. Shorter

than LZ. alboguttatus, the white scales narrower and more scattered, and not clustered

into sharply-defined spots. The vestiture is fine, above and beneath, and almost

wholly white and black.

14. Lechriops excavatus, sp. n. (Tab. VI. fig. 23.) |

Subovate, nigro-piceous or black, rather dull, the antenne, the apical margin of the elytra, the tips of the

tarsi, and sometimes the tibie also, ferruginous ; the vestiture fine: the head with a fulvous line around

the eyes ; the prothorax with a space down the middle and some markings towards the sides fulvous, the

scattered narrow scales sometimes extending over the greater part of the surface; the elytra mottled with

fulvous, white, and blackish scales, the white scales usually condensed into a short faint streak at the

middle of the suture, the fulvous scales sometimes extending over the greater part of the surface;

the vestiture of the under surface and legs fulvous and white intermixed. Head rather small; eyes

moderately large, narrowly separated ; rostrum rugulosely punctate and carinate at the base, the apical

half dull and finely punctate in the ¢,, and shining and almost smooth in the ° ; joint 2 of the funiculus

much longer than 1. Prothorax transverse, narrowing from near the base, constricted in front; densely,

finely, rugulosely punctate, and also subcarinate. LElytra broad, subcordate, blunt at the tip, somewhat

inflated, the sutural region strongly depressed anteriorly ; punctate-striate, the interstices broad, densely

rugulose, and almost flat, Rostral canal very deep, the metasternal excavation triangular. First ventral

segment shallowly depressed down the middle in the ¢.

Length 33-33, breadth 1;%-2 millim. (¢ 2.)

Hab. GuateMaLa, Duefias (Champion).

Twelve specimens. Recognizable by the dull, slightly inflated, deeply excavate

elytra, the fine vestiture, which is sometimes in great part fulvous, the dull, punctate

rostrum of the male, &c. The elytra have, at most, a short faint whitish streak at the

middle of the suture.

15, Lechriops maculiceps, sp. n. (Tab. VI. fig. 24.)

Subovate, opaque above, black or piceous, the antennw, the apex of the rostrum, the tips of the tarsi, and the

apical margin of the elytra ferruginous ; the vestiture very fine: the head with a fulvous line around

the eyes, which is divided into spots behind them; the prothorax with a v-shaped patch on the dise

at the base, a spot in the middle in front (these markings somewhat united into an irregular cruciform

patch), and two others on each side, fulvous, the intervening spaces sometimes with a few white scales -

the elytra variegated with small patches of fulvous, white, and blackish scales ; the vestiture of the

under surface and legs fulvous intermixed with white. Eyes moderately large, narrowly separated

Rostrum carinate and rugulosely punctate at the base. Joint 2 of the funiculus elongate, nearly as long

as 3-6 united. Prothorax short, constricted in front, narrowing from near the base ; closely punctate

except along the slightly raised median line, the narrow interspaces alutaceous. Elytra broad sab

cordate, blunt at the apex, depressed along the suture anteriorly ; punctate-striate, the interstions

rugulose, dull, and almost flat. Rostral canal deep, extending to the anterior portion of the metasternum

Intermediate posterior knees acutely dentate.

Length 33-34, breadth 13-2), millim.

Hab. Muxico (Mus. Dresden), Toxpam in Vera Cruz (Sallé), Cerro de Plumas,

LECHRIOPS. 99

Jalapa ({ége); GUATEMALA, Chacoj, Panima, Cubilguitz, and San Gerénimo in Vera Paz

(Champion); Panama, Volcan de Chiriqui (Champion).

Not rare in Mexico and distributed in various collections. The opaque upper

surface, the fine vestiture, which is condensed into spots on the head and prothorax,

the latter having also a more or less distinct cruciform patch on the disc, and the

variegate elytra, sufficiently distinguish LZ. maculiceps. Dr. Heller has sent me a

specimen of it under the name “ Copturosomus sp.” ‘There is a very similar unnamed

form from Rio Janeiro in the Fry collection.

16. Lechriops coarctatus, sp.n. (Tab. VI. fig. 25.)

Subovate, rather broad, dull, nigro-piceous or black, the rostrum sometimes rufescent, the antenne, the apical

margin of the elytra, and the tips of the tarsi ferruginous; the vestiture rather coarse and close: the

head and prothorax mottled or variegated with ochreous or fulvous, sometimes with a few white scales

intermixed (the head usually with two spots behind each eye, and the prothorax with various small

spaces on the disc, bare); the elytra mottled with fulvous (or ochreous), white, and black, the white

scales clustered into a few very small scattered spots, the one at the middle of the suture the most

conspicuous, and the black ones into a small transverse patch on the suture below the base; the

vestiture of the under surface coarser and paler, that of the legs somewhat variegate, the posterior

femora with a narrow dark patch towards the apex. yes large, narrowly separated. Rostrum

carinate and rugulosely punctate to about the middle, and finely punctate thence to the apex, the apical

half a little smoother in the 9. Joint 2 of the funiculus much longer than 1. Prothorax broad, trans-

verse, abruptly constricted and narrowed in front; densely punctate and feebly carinate. Llytra broad,

somewhat rounded at the tip, the sutural region slightly depressed anteriorly ; punctate-striate, the

interstices broad, rugose, and feebly convex. Rostral canal deep, reaching as far as the posterior margin

of the middle coxze, the walls complete. First ventral segment broadly and shallowly depressed down the

middle in the ¢. Femora sharply dentate.

Length 34-4, breadth 2-24 millim. (¢ @.)

Hab. Mexico (Mus. Dresden), Presidio de Mazatlan (Worrer), Toxpam (Sal/é),

Oaxaca (Hoge); Guatemala, Zapote (Champion); Nicaragua, Chontales (Janson).

Thirteen specimens. A rather broad, robust form, with the prothorax strongly

constricted in front, the vestiture somewhat close and mottled, especially on the elytra,

the latter with at most a small white spot at the middle of the suture, the surface dull.

Dr. Heller has communicated examples of it under the name of * Copturosomus sp.”

17. Lechriops vestitus. (Tab. VI. fig. 26.)

Copturus vestitus, Boh. in Schénh. Gen. Cure. iv. p. 645 °.

Lechriops vestitus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 14, 15°.

Hab. British Honpuras, Belize (Blancaneaux); GuatemaLa, Cahabon (Champion) ;

Costa Rica, Surubres (Biolley); Panama, Bugaba, Volcan de Chiriqui, David, San

Feliz (Champion).—Co.omB1a, Carthagena!. ‘

Distinguishable by the rather long, coarse, intermixed fulvous, black, and white

vestiture of the upper surface. The white spot at the middle of the suture is some-

00 2

100 RHYNCHOPHORA.

times transverse (extending to the second stria), and when this is the case the black

patch preceding it is divided by the short fulvous stripe extending down the suture

from the base. The dorsal strie 2-4 are somewhat sinuate. The eyes are a little

more distant above than they are in front. The second joint of the funiculus is much

longer than the first. The first ventral segment is shallowly sulcate down the middle

in the male.

18. Lechriops centrosignatus, sp. n.

Subovate, dull, black, the antenne, apical margin of the elytra, knees, tibiz, and tarsi more or less ferruginous ;

variegated above with a somewhat dense clothing of fulvous, black, and white scales (those on the elytra

small), the elytra with a large patch at the middle of the suture and a small spot on the eighth interstice

yellowish-white, the mesothoracic epimera also whitish ; the vestiture of the under surface fulvous and

white, the posterior femora with a broad blackish patch at the middle. Eyes large, narrowly separated,

acuminate beneath. Rostrum stout, rugulose and finely carinate in its basal half. Joints 1 and 2 of the

funiculus equal in length. Prothorax transverse, rounded at the sides anteriorly, abruptly narrowed

and constricted in front; densely punctate and finely carinate. Elytra subcordate, blunt at the tip ;

deeply punctate-striate, the interstices rugulose and feebly convex. Rostral canal deep, reaching the

metasternum. First ventral segment with a smooth shallow median sulcus in the g. Femora rather

stout, sharply dentate.

Length 24, breadth 14 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui (Champion).

One pair. Smaller and narrower than L. vestitus, the elytral vestiture not so coarse,

the prothorax abruptly constricted in front, the second joint of the funiculus not longer

than the first, the rostrum shorter and stouter. The large white spot at the middle

of the suture, much smaller size, narrower form, &c., separate L. centrosignatus

from L. coarctatus. The eyes are larger, and more acuminate beneath, than in the

variable L. oculatus.

19. Lechriops lebasi.

Copturus lebasii, Boh. in Schénh. Gen. Cure. iv. p. 646".

Lechriops lebasi, Heller, Abhandl. Mus. Dresd. no. 11, pp. 14, 15’.

- Hab. Mexico, Toxpam (Sallé); British Honpuras, Belize (Llancaneaux); GUATE-

MALA, San Juan, San Gerdnimo (Champion) ; Costa Rica, Surubres (Liolley) ; Panama,

Bugaba, Volean de Chiriqui (Champion).—CoLomB1a, Carthagena *.

The type of this species, which is in bad condition, is a little larger and more rugose

than Z. infimus, and has the pallid scales on the elytra clustered into a small patch at

the middle of the suture, another on the eighth interstice, and various scattered spots

or streaks. Various specimens are somewhat doubtfully referred to it, those from the

Volcan de Chiriqui wanting the sutural spot. J. parilis is a nearly allied form.

20. Lechriops parilis, sp. n.

Subovate, dull, black, the antenne, the tip of the rostrum, the apical margin of the elytra, and the tarsi in

part or wholly, ferruginous; the vestiture rather sparse: the head with a line around the outer part of

LECHRIOPS. 101

the eyes, and the very narrow space between them, and the prothorax with an interrupted median vitta

and some spots or irregular markings at the sides, ochreous or fulvous; the elytra mottled with ochreous

(or fulvous) and blackish, the ochreous scales clustered into a small spot at the middle of the suture, a

short streak at the apex of the latter, and a spot on the eighth interstice, the blackish scales condensed

into two oblong patches along the suture; the vestiture of the under surface fine, sparse, in great part

white, the ventral segments 3-5, and sometimes the knees also, fulvous, the femora with a blackish patch

towards the apex. Eyes very large, narrowly separated. Rostrum rugulosely punctate and finely

carinate to near the middle, the apical half shining in both sexes. Joint 2 of the funiculus much longer

than 1. Prothorax short, somewhat rounded at the sides, narrowed and feebly constricted in front ;

densely, rather coarsely punctate, and subcarinate. Klytra much wider than the prothorax, subcordate,

feebly depressed along the suture anteriorly, punctate-striate, the interstices rugose and almost flat.

Rostral canal deep, the metasternal depression limited by a v-shaped ridge. First ventral segment

hollowed down the middle posteriorly in the ¢. Femora sharply dentate, the posterior knees with a

short spine.

Length 24-33, breadth 13-2 millim. (¢ 2.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé); Guatemaua, Cubilguitz in Vera Paz

(Champion) ; Panama, Volcan de Chiriqui (Champion).

Ten specimens. Very near L. lebasi, but with relatively broader, subcordate elytra.

Compared with L. excavatus, the elytra are less inflated, and not so deeply excavate

along the suture, the apical half of the rostrum is more shining in the male, and the

eyes are more approximate above. ‘There are no intermixed white scales on the upper

surface. The two specimens from Chiriqui have a less rugose prothorax and they may

belong to a different species. The description is taken from the Mexican examples.

21. Lechriops ochreoguttatus, sp.n. (Tab. VI. fig. 27.)

Very like Z. parilis, but with sharply-defined, small, scattered pale ochreous spots on the upper surface—six

on the prothorax, one at the middle of the suture, another at its apex, and six smaller ones scattered over

each elytron (the three on the outer part of the disc triangularly arranged), the rest of the elytral

vestiture black, that of the under surface and legs sparse and whitish, the femora each with a large black

patch; the prothorax shining, coarsely punctate; the elytra coarsely punctate-striate, with rugose

interstices, the humeral callus smooth ; the tarsi ferruginous.

Length 34, breadth 2,4, millim. (@.)

Hab. Mexico, Toxpam (Sallé).

One specimen. This is a form of L. parilis, but it cannot very well be included

under that species, the elytral spots being as sharply defined as they are in L. porcatus.

It is one of many Lechriops from ‘“'Toxpam ” in the Sallé collection.

22. Lechriops extritus, sp. n.

Subovate, black, the antenne (the club excepted), apical margin of the elytra, and tarsi ferruginous, the knees

and tibiz sometimes reddish; the vestiture fine and sparse: the prothorax with three faint ochreous

vitte ; the elytra with a small spot at the middle of the suture, one at its apex, one on the eighth

interstice, and various others (less distinct) on the basal half of the disc, white or ochreous, the rest of

their vestiture blackish, the dorsal interstices sometimes sublineate with ochreous; the clothing of the

legs and under surface very sparse, fine, white, the posterior femora with indications of a darker patch.

Head rather small; eyes moderately large, subcontiguous ; rostrum sparsely, minutely punctate, rugulose

and subcarinate at the base; joints 1 and 2 of the funiculus subequal in length. Prothorax short,

102 RHYNCHOPHORA.

narrowing from near the base, slightly constricted in front; densely rugulosely punctate and feebly

carinate. Elytra much wider than the prothorax, blunt at the tip, depressed along the suture anteriorly ;

deeply punctate-striate, the interstices a little wider than the striw, rugose, faintly costate towards

the base. Rostral canal deep, extending into the front of the metasternum. Ventral segments 1 and 2

rather sparsely punctate, 1 shallowly sulcate in the ¢. Femora sharply dentate.

Length 22-32, breadth 13-2 millim. (¢ @.)

Hab. Panama, Volcan de Chiriqui (Champion).

Four specimens. Closely related to ZL. parilis, but with a smaller head, smaller

eyes, a more conical prothorax, and finer vestiture, the elytral interstices faintly costate

at the base. Larger than J. disparilis, the elytra with less sharply-defined spots and

broader interstices, the vestiture of the under surface sparser and finer.

23. Lechriops disparilis, sp. n.

Smaller than Z. evtritus; the prothorax with three faint ochreous or white vitte on the disc, which are

sometimes divided into spots ; the elytra with traces of a curved, much interrupted fascia extending from

the scutellar region to below the humeral callus (often obsolete), a small spot at the middle of the suture,

one at its apex, and one on the eighth interstice, white ; the vestiture of the under surface coarser and

closer, white ; the posterior femora with an indication of a dark patch towards the apex; the elytral

interstices scarcely wider than the striee, not carinate at the base; the ventral segments more closely

punctate, 1 depressed down the middle in the g ; rostrum carinate and rugulose in its basal half in

the 3, smoother in the 9.

Length 24-23, breadth 14-1} millim. (¢ 2.)

Hab. Nicaragua, Chontales (Janson); Panama, Bugaba, Volcan de Chiriqui

(Champion). |

Nine specimens. Perhaps an extreme form of L. eatritus. The sparse, blackish

general vestiture of the elytra (leaving a few small white spots distinct) distinguishes

L. disparilis from the variable L. infimus, as well as from L. lebast. The present

insect is very like Copturomorpha funerea, but the latter has a conspicuous concave

strigose area on the anterior femora, a dark oblique band on the posterior femora, and

the femora themselves unarmed beneath.

24. Lechriops quadripunctatus, sp.n. (Tab. VI. fig. 28.)

Of the same size and shape as L. disparilis, but duller and more rugose ; the prothorax somewhat rounded at

the sides, with a faint submarginal vitta on each side and two spots along the median line ochreous ; the

elytra with a small spot at the middle of the suture, another in a line with it on the eighth interstice, and

a few scales at the base, whitish, and a larger spot at the apex ochreous, the interstices broader than the

striz ; the vestiture of the under surface and legs white, rather coarse; joint 2 of the funiculus a little

longer than 1.

Length 22, breadth 13 millim. (9.)

Hab. Mexico, 'Teapa in Tabasco (H. H. Smith).

Two specimens. Distinguishable from LZ. disparilis and other allied forms by the

sharply-defined ochreous apical spot. The upper surface is opaque.

LECHRIOPS. 108

25. Lechriops nitidiusculus, sp. n.

Subrhomboidal, shining, black or piceous, the antenna, apical margin of the elytra, tibie, and tarsi more or

less ferruginous ; the vestiture rather long and fine: the head with a narrow ochreous line around the

eyes; the prothorax mottled with fulvous and white, except on the two bare spaces on the disc; the

elytra variegated with fulvous, white, and black, the white scales condensed into a small spot at the

middle of the suture, another at its apex, and another on the eighth interstice, the suture with an oblong

blackish patch below the base and another towards the apex; the under surface and legs white, with

fulvous scales intermixed, the posterior femora with a broad dark patch towards the apex. Eyes large,

subcontiguous. Rostrum rugulose and carinate at the base. Joint 2 of the funiculus longer than 1.

Prothorax short, narrowing from the base; densely punctate and finely carinate. Elytra rather broad,

subcordate, blunt at the tip; deeply punctate-striate, the interstices rugulose, shining, broader than the

strie. Rostral canal deep.

Var.? The fulvous scales few in number; the prothorax with six spots or three irregular vitize white; the

elytra mottled with black and white, the white scales clustered into two short streaks on the suture, a

spot on the eighth interstice and various interrupted undulate fasciee.

Length 23-3, breadth 14-12 millim.

Hab. Muxtco (Mus. Dresden), Toxpam, San Andres Tuxtla, Juquila (Sallé), Atoyac

(H. H. Smith); Guatemata, Chiacam and Senahu in Vera Paz (Champion).

Ten specimens, all but two from Mexico. Larger, broader, and more shining than

L. infimus, the prothorax subconical. The var.?, represented by four examples from

Juquila, approaches L. alboguttatus, but has less definite elytral markings.

26. Lechriops oculatus.

Cryptorhynchus oculatus, Say, Journ. Acad. Phil. iii. p. 8308"; Complete Writings, i. p. 172°.

Piazurus oculatus, Lec. Proc. Am. Phil. Soe. xv. p. 260°.

Lechriops oculatus, Heller, Abhandl. Mus. Dresd. no. 11, p. 65 4.

Gelus oculatus, Casey, Ann. N. York Acad. Sci. ix. p, 668°.

Lechriops discors, Faust, in litt.°

Subovate, dull, black or piceous, the antenne, apical margin of the elytra, and tarsi ferruginous : the vestiture

rather coarse and close, fulyous and white, intermixed with black on the elytra, that on the prothorax

condensed into a v-shaped or triangular mark at the base, a spot in the centre in front, and two irregular

spots or a stripe on each side, the elytra with a sharply-defined white spot at the middle of the suture,

preceded by a black patch and sometimes extending to the second stria, and usually a minute white dot

on the eighth interstice; the under surface and legs clothed with fulvous (or rosy-red) and white scales

(the former sometimes predominating), the posterior femora with a dark patch towards the apex. Eyes

large, subcontiguous. Rostrum rugulose and finely carinate at the base. Joint 2 of the funiculus longer

than1. Prothorax transverse, somewhat rounded at the sides, constricted and narrowed in front ; densely

punctate and finely carinate. Elytra much wider than the prothorax, subcordate, blunt at the tip ;

deeply punctate-striate, the interstices a little broader than the stric, rugose. Rostral canal deep.

Length 23-3, breadth 11-12 millim.

Hab. Nort America, Canada, Southern and Western States ?.—Mxxico (Mus.

Dresden), Toxpam (Sallé), Motzorongo (Flohr), Cerro de Plumas (Hoge), Atoyac,

Cuernavaca, Chilpancingo (Z. Z. Smith); GUATEMALA, Capetillo, San Gerénimo

(Champion).

Apparently a common insect in Mexico. Central-American specimens differ from

104 RHYNCHOPHORA.

others from North America sent me by Mr. Wickham in having the vestiture a little

coarser. L. oculatus is closely related to L. infimus, having relatively broader elytra,

coarser vestiture, and a more sharply defined white sutural spot.

27. Lechriops sticticus, sp.n. (Tab. VI. fig. 29.)

Ovate, rather narrow, shining, black, the apical margin of the elytra, the antenne, tibiz, and tarsi more or less

ferruginous ; the prothorax with a median vitta (sometimes broken up into two spots), two submarginal

spots, and a streak along the flanks, and the elytra with a transverse mark at the middle of the suture,

a streak along the latter at the tip, a small spot on the eighth interstice, another on the tenth, and various

scattered patches or short streaks, ochreous or white; the vestiture of the legs and under surface white,

the posterior femora sometimes with a darker patch towards the apex. Head rather small; eyes

subcontiguous; rostrum rugulose at the base; joints 1 and 2 of the funiculus equal in length. Pro-

thorax transverse, gradually narrowing from the base, feebly constricted in front; densely, finely

punctate and obsoletely carinate. Elytra deeply striate, the stria finely punctate, the interstices rugulose

and almost flat. Rostral canal deep, reaching the front of the metasternum, the walls complete.

Length 21-23, breadth 11-1? millim.

Hab. Mrxico, Oaxaca and ? Jalapa (fége).

Six specimens, probably all from Oaxaca. A small, narrow form with sharply-

defined whitish spots, near LZ. alboguttatus, but of the general shape of L. porcatus,

differing from the latter in the much narrower strie of the elytra. ‘The second joint

of the funiculus is shorter than in L. aldoguttatus.

28. Lechriops bicolor, sp.n. (Tab. VI. fig. 30.)

hriops bicolor, Faust, in litt.

Subovate, black, the disc of the elytra in great part piceous or rufo-piceous, their apical margin, the antennxy,

the tip of the rostrum, the tarsi, and sometimes the femora and tibie also, ferruginous; the vestiture

fine, sparse, and filiform: the prothorax with three more or less interrupted ochreous or whitish vittee ;

the elytra with two broad oblique fasciw, united along the suture (the posterior one sometimes reduced to

a common sutural spot, or the whole of these markings united into a large saddle-shaped patch), a short

streak on the eighth interstice, and another at the apex, ochreous or whitish, the white scales sometimes

condensed into a spot at the middle of the suture ; the under surface and legs white, the posterior femora

usually with a dark patch towards the apex. Eyes large,subcontiguous. Rostrum rugulose and carinate

at the base. Joint 2 of the funiculus a little longer than 1. Prothorax short, narrowing from near the

base, feebly constricted in front; densely punctate and feebly carinate. LElytra subcordate, broadly

rounded at the apex; deeply punctate-striate, the interstices rugose, very little wider than the striz,

almost flat. Rostral canal deep, reaching the anterior portion of the metasternum.

Length 23-23, breadth 13-12 millim.

Hab. Muxico (Mus. Dresden), Toxpam (Sallé), Oaxaca (Hége), Teapa (Hoge, H. H.

Smith) ; Britisn Honpuras, Belize (Llancaneaur); Guatremaua, Cubilguitz, Cahabon,

San Juan, Chacoj, San Gerdénimo, Cerro Zunil (Champion); Panama, Bugaba, Volcan

de Chiriqui (Champion).

Numerous examples. A very close ally of L. infimus, but differing from it in the

general coloration of the elytra, as well as in the arrangement of the vestiture. There

is sometimes a distinct whitish or ochreous patch at the middle of the suture.

LECHRIOPS. 105

29. Lechriops analis, sp. n. (Tab. VI. fig. 31.)

Subovate, black, the elytra with a large patch at the apex, and sometimes a spot on the shoulder or a transverse

patch on the dise below the base, rufo-piceous or ferruginous, the antenne, the tip of the rostrum, and

the legs in part, ferruginous ; the vestiture fine, piliform, close on the elytra: the prothorax with three,

more or less interrupted, fulvous or ochreous vitte, often with white scales intermixed; the elytra

variegated with fulvous (or ochreous), white, and black, the fulvous scales condensed into a large apical

patch, and the white ones into a small spot at the middle of the suture (which is preceded by a black

patch) and another on the eighth interstice ; the under surface and legs white, the flanks of the prothorax

often fulvous, the posterior femora with a blackish patch towards the apex. Eyes large, subcontiguous.

Rostrum carinate and rugulose at the base. Joint 2 of the funiculus much longer than 1. Prothorax

short, narrowing from near the base, constricted in front ; densely punctate and feebly carinate. Elytra

broad, subcordate, rounded at the apex, with a small smooth humeral callus; deeply punctate-striate, the

interstices rugose and slightly wider than the strie. Rostral canal deep.

Length 2-24, breadth 14-14 millim. (¢ @.)

Hab. Muxtco, Toxpam (Sallé), Jalapa (Hoge) ; Guaremata, near the city, Capetillo,

Zapote, Chaco} (Champion); Nicaragua, Chontales (Janson); Panama, David

(Champion).

This is a form of L. infimus with a large, rufescent, fulvo-squamose apical patch,

which sometimes extends forwards to the middle of the suture, and rather broad,

cordate elytra. The description is taken from the numerous specimens from Capetillo

and Guatemala City. Three from the latter locality with the elytra mottled with rufo-

piceous may also belong here.

80. Lechriops infimus.

Copturus infimus, Boh. in Schénh. Gen. Cure. iv. p. 647 *.

Lechriops infimus, Heller, Abhandl. Mus. Dresd. no. 11, pp. 14, 157.

Copturus infimus, var. 8. senilis, Schouh. loc. cit.

Lechriops turtur, Faust, Stett. ent. Zeit. 1896, p. 89 *.

Var. Lechriops sodalis, Faust, loc. cit. p. 90°.

Hab. Mexico, Toxpam (Sallé), Jalapa (Smith, ex Wickham), Teapa (H. H. Smith)

British Honpuras, Belize (Blancaneaux) ; Guatnmaua, Cahabon, San J uan, Tamahu,

and San Gerénimo in Vera Paz (Champion); Nicaragua (Sallé), Chontales (Janson) ;

Costa Rica, San José, Reventazon (Liolley); Panama, Bugaba, Volcan de Chiriqui,

Caldera (Champion).—Cotomsia, Carthagena!; Vewgzuena, Caracas 4, San Esteban 45

(Mus. Dresden).

Var. The prothoracic vestiture more extended, fulvous or ochreous, the disc with two small transverse spots

only bare.

Lechriops helleri, Faust, in litt.

Hab. Mexico (Mus. Dresden), San Andres Tuxtla (Sallé), Fortin (1. H. Smith).

A common species in Central America. It is a small, rather narrow form, with the

fine, scattered, ochreous or whitish, vestiture condensed on the prothorax into three

irregular vitte, and that on the elytra into numerous small patches or interrupted lines

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, December 1906. PP

106 RHYNCHOPHORA.

and a spot at the middle of the suture. The first two joints of the funiculus are

subequal in length. In two of the smallest specimens the femoral tooth is almost or

quite obsolete. The type of C. infimus has been communicated by Dr. Aurivillius and

those of L. turtur and L. sodalis by Dr. Heller.

31. Lechriops auritus. (Tab. VI. fig. 32.)

Copturus infimus, Boh., var. y. auritus, Schonh. Gen. Cure. viii. 2, p. 108°.

Lechriops auritus, Heller, Abhandl. Mus. Dresd. no. 11, p. 14, nota’.

Hab. Mexico, Toxpam in Vera Cruz (Sallé), Atoyac, Orizaba, Cuernavaca (H. H.

Smith), 'Teapa (Sallé, H. H. Smith), Tapachula (Hoge); Guatemata, Chacoj, San Juan,

San Joaquin, San Gerdénimo, Capetillo, Zapote (Champion), Champerico (Baker, in Mus.

Brit.) ; Costa Rica, Surubres (Biolley) ; Panama, Volcan de Chiriqui, Boquete, Caldera

(Champion).—CotomB1a 1.

Found in abundance at Teapa, apparently in company with ZL. infimus, from which

it differs in having a broad space along the sides of the prothorax densely clothed with

rather coarse white scales. ‘The prothorax is somewhat finely punctate and usually

has two short, narrow, bare vittee on the posterior lobe. The elytra have a transverse

white spot at the middle of the suture, preceded by a dark patch, and a very small

white spot on the eighth interstice. ‘The first two joints of the funiculus are subequal

in length. I have not seen the type of L. auritus, but there is little doubt about the

determination. According to Heller ?, it is a good species.

32. Lechriops infusus, sp. n. (Tab. VII. fig. 1.)

Lechriops infusus, Faust, in litt.

Subovate, black or piceous, the elytra sometimes rufo-piceous, the antenne, apical margin of the elytra, tarsi,

and sometimes the tibize and knees also, ferruginous ; the vestiture rather coarse and close: the prothorax

with a broad space along the sides, and sometimes the lower part of the flanks also, densely clothed with

coarse white (or pale ochreous) scales, the disc with longer piliform scales down the middle; the elytra

with a large spot at the middle of the suture, a streak along the latter at the apex, and a spot on the

eighth interstice, white (or pale ochreous), the rest of their surface variable in colour, according to the

predominance of the white (or pale ochreous) and black (or fuscous) scales; the under surface thickly

clothed with coarse white or whitish scales, the vestiture of the legs similarly coloured, the posterior

femora with a large blackish patch towards the apex. Eyes large, narrowly separated. Rostrum

rugulose and carinate to about the middle. Joint 2 of the funiculus a little longer than 3. Prothorax

transverse, narrowing from near the base; densely punctate and finely carinate. Elytra much wider

than the prothorax, subcordate, rounded at the tip; punctate-striate, the interstices broader than the

stria, rugose, and almost flat. Rostral canal deep. First ventral segment broadly depressed down the

middle in the ¢.

Length 23-32, breadth 14-13 millim. (d 9.)

Hab. Mexico (Mus, Dresden), Chilpancingo and Amula in Guerrero (H. H. Smith),

Toxpam, Juquila (Sad/é),Cordova, Cerro de Plumas, Oaxaca (Hoge), Jalapa (Smith, ex

Wickham); GuatTemMaua, Senahu, Sinanja, Chacoj, Capetillo, Guatemala City, Zapote

(Champion).

LECHRIOPS. 107

A very variable insect and apparently common in Mexico. It is larger and longer

than LZ. auritus and has the vestiture coarser. The broad white band on each side of

the prothorax and the four white spots on the elytra are sharply defined in the

specimens from Guerrero, which may be taken as the types. The Guatemalan

examples, some of which have the whole of the flanks of the prothorax albo-squamose,

are mostly discoloured or partially abraded. Dr. Heller has sent me specimens from

Mexico under the name ZL. infusus, Faust.

33. Lechriops festivus, sp.n. (Tab. VII. fig. 2.)

Lechriops festivus, Faust, in litt.

Subovate, black, the elytra sometimes variegated with rufo-piceous, their apical margin, the apex of the rostrum,

the antenne, and tarsi more or less ferruginous; the prothorax with a broad space along the sides

(sometimes divided into two sinuous lines or reduced into a subquadrate patch at each hind angle),

extending on to the shoulders and mesothoracic epimera, and the elytra with a rounded spot of variable

size at the middle of the suture, and a minute spot on the eighth interstice, clothed with coarse white or

pale ochreous scales, the disc of the prothorax with hair-like ochreous scales along the middle, the rest of

the elytra variegated with fine cinereous, ochreous, and blackish scales, the ochreous scales clustered into

a streak along the apical portion of the suture (extending from the white spot to the tip) and the black

ones into a patch on the suture below the base ; the vestiture of the under surface and legs rather coarse,

white or ochreous, the posterior femora with a dark patch. Eyes large, subcontiguous. Rostrum

rugulose and feebly carinate at the base. Joint 2 of the funiculus a little longer than 1. Prothorax

short, constricted in front, narrowing from the base; densely punctate and obsoletely carinate.

Elytra short, broad, subcordate, rounded at the tip; deeply punctate-striate, the interstices slightly

wider than the striv, rugose. Rostral canal deep, reaching into the metasternum.

Length 22-3, breadth 13-2 millim.

Hab. Mexico (Mus. Dresden), Toxpam (Sallé), Atoyac, Teapa (H. H. Smith), Mot-

zorongo (Flohr), Jalapa (Hoge); GuaTEMALa, Senahu, Chacoj, San Gerénimo (Champion);

Nicaragua, Chontales (Janson).

Numerous examples, three of which have the white sutural spot small; two others, from

Guatemala, have the white band at the sides of the prothorax reduced to a subquadrate

basal patch. In the typical specimens, from Atoyac, &c., the sutural spot is large and

sharply defined. JL. festivus is a form of L. auritws with relatively broader elytra

and a more rugose surface. It has shorter elytra than LZ. infusus. The suture from the

white spot to the apex is bordered with ochreous or fulvous scales.

34. Lechriops paroticus. (Tab. VII. fig. 3.)

Copturus paroticus, Pasc. Ann. & Mag. Nat. Hist. (5) v. p. 496°.

Lechriops (?) paroticus, Heller, Abhandl. Mus. Dresd. no. 11, p. 68’.

? Copturus latericollis, Jekel, in litt.’

Hab, Nicaracua, Chontales (Janson) ; Panama, Bugaba, Volcan de Chiriqui, Caldera,

Tolé, San Feliz (Champion).—Braziu®, Parana}.

This insect, described from a single specimen from Parana, has a broad, dense,

curved band of coarse pale ochreous scales on each side of the prothorax, and four

PP 2

108 RHYNCHOPHORA.

small similarly-coloured spots on the elytra (one at the middle of the suture, another

at its apex, and one on the eighth interstice of each elytron), the rest of the vestiture

of the latter dark and fine. The elytral interstices are wider than the strie and very

rugose.

85. Lechriops alboterminatus, sp.n. (Tab. VII. fig. 4.)

Subrhomboidal, short, black, the antenne, apices of the tibie, tarsi, and apical margin of the elytra ferruginous,

the disc of the prothorax and the base of the elytra piceous ; the head between and behind the eyes, the

prothorax with a broad space along the sides, extending on to the humeri and mesothoracie epimera, the

elytra with a minute or small spot at the middle of the suture, another on the eighth interstice, and the

apex, the middle femora at the tip, the posterior femora (a black band near the apex excepted), the

metasternum, and abdomen, thickly clothed with rather coarse white or brownish-white scales, the disc of

the prothorax and the scutellar region with fine ochreous hair-like scales, the rest of the vestiture very

fine and sparse, blackish on the elytra, with a few scattered white scales intermixed. Eyes large, sub-

contiguous. Rostrum rugulose and feebly carinate at the base. Joint 2 of the funiculus slightly longer

than 1. Prothorax short, conical ; densely punctate and subcarinate. LElytra short, broad, subcordate,

blunt at the tip, depressed along the suture anteriorly, with a small smooth humeral callus; deeply

punctate-striate, the interstices about as wide as the striw, rugulose, and with a faint raised line on each

side. Rostral canal deep, reaching the anterior portion of the metasternum, the walls complete.

Length 24, breadth 12 millim.

Hab. GuatemMata, Senahu in Vera Paz (Champion); Panama, Volcan de Chiriqui

(Champion).

One specimen from each locality. The Guatemalan example (fig. 4), which has

the white stripe at the sides of the prothorax bordered within by a sinuous dark line,

is taken as the type. This species is an ally of L. auritus, differing from it in having

the apex of the elytra clothed with white scales, the strie broader and deeper, the

interstices subcostate on each side, &c.

36. Lechriops porcatus, sp.n. (Tab. VII. fig. 5.)

Ovate, rather convex, shining, black, the tarsi and the apical margin of the elytra ferruginous ; the prothorax

with a median vitta, two submarginal spots, and a line along the flanks, the elytra with a spot at the

middle of the suture, an oblong mark at its apex, a spot at the sides beyond the middle, and some short

streaks at the base, clothed with coarse white scales, the rest of the upper surface with fine scattered

blackish scales ; the under surface and legs coarsely albo-squamose, the posterior femora with an oblique

blackish band towards the apex. Eyes subcontiguous. Rostrum rugosely punctate at the base.

Funiculus widening outwards, the outer joints strongly transverse, 2 a little shorter than 1. Prothorax

transverse, somewhat rounded at the sides, narrowed in front; densely punctate and feebly carinate.

Elytra conjointly rounded at the tip, punctato-sulcate, the interstices not wider than the stric, shallowly

uniseriate-punctate, and with a very fine raised line on each side. Rostral canal deep, extending into

the front of the metasternum. Femora dentate, the posterior pair finely earinate externally.

Length 24, breadth 14 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Two specimens. A rather convex, narrow form, with punctato-sulcate elytra, the

interstices of which are not wider than the strie, the prothorax and elytra with sharply-

defined white spots, the second joint of the funiculus shorter than the first.

LECHRIOPS.—EULECHRIOPS. 109

37. Lechriops durangoanus, sp. n. (Tab. VII. fig. 6.)

Subovate, shining, nigro-piceous, the rostrum, antenne, tarsi, and apical margin of the elytra ferruginous ;

variegated with small, narrow, blackish and ochreous scales, the ochreous scales on the prothorax condensed

into six spots on the disc and some irregular markings on the flanks, and those on the elytra mainly into

some short streaks at the base, a large spot at the middle of the suture (extending outwards to the second

stria), a smaller spot on the eighth interstice in a line with it, and a streak along the suture at the tip,

the basal margin of the prothorax clothed with white scales on each side; the vestiture of the under

surface and legs rather sparse, in great part white, the meso- and metathoracic side-pieces each with an

ochreous spot, and the ventral segments 3-5 almost wholly of that colour, the femora each with a dark

patch. Head rather small; eyes narrowly separated; rostrum short, rugulosely punctate and feebly

carinate at the base; joint 2 of the funiculus much longer thanl. Prothorax transverse, narrowing

from the base, constricted in front; densely punctate and subcarinate, Llytra about one-half wider than

the prothorax, moderately long, somewhat rounded at the sides, obliquely truncate at the tip, depressed

along the suture anteriorly ; deeply punctate-striate, the interstices rugulose and feebly convex. Meso-

sternum vertical, excavate. Metasternum simply declivous in front.

Length 4, breadth 21 millim.

Hab. Mexico, Ciudad in Durango (Hoge).

One specimen. A species with rather long, broad elytra, short rostrum, and short

rostral canal, the metasternum unimpressed. The ochreous spot at the middle of the

suture is large. This is one of the few forms received by us from Northern Mexico,

and, like LZ. oblongulus, it is not very closely allied to any of the others here described.

38. Lechriops flavofasciatus, sp. n. (Tab. VII. fig. 7.)

Oblong-elliptic, rather narrow, shining, piceous, the apical margin of the elytra rufous ; sparsely squamose,

the scales on the prothorax white and condensed into three interrupted vitte, the elytra with a basal fascia

of coarse ochreous scales, the suture narrowly and a spot at the sides beyond the middle white, the seriate

punctures each with a piliform scale; the under surface clothed with coarse white scales, the vestiture

of the legs fine and also white. Eyes very large, narrowly separated. Rostrum rugose and carinate at

the base. Joint 2 of the funiculus elongate, much longer than 1. Prothorax short, slightly narrowed in

front; coarsely, densely punctate, and feebly carinate. Elytra broadly and separately rounded at the apex,

the humeri smooth and bare; deeply punctate-striate, the interstices narrow and rugose. Mesosternal

excavation shallow, limited on each side by a curved ridge, the metasternum gradually declivous in front.

Legs short ; femora obsoletely dentate, the posterior pair carinate externally ; tarsi comparatively long.

Length 24, breadth 17 millim.

Hab. Panama, Bugaba (Champion).

One rather worn specimen. In this small species the elytra have a transverse band

of coarse ochreous scales at the base and a conspicuous white spot at the sides beyond

the middle, the rostral canal does not extend beyond the mesosternum, &c.

EULECHRIOPS.

Eulechriops, Faust, Stett. ent. Zeit. 1896, p. 91, nota.

? Zygomicrus, Casey, Ann. N. York Acad. Sci. ix. pp. 667, 679 (1897).

Faust placed four S.-American species under the generic name Lulechriops, which

may be distinguished in a general way from Lechriops by the unarmed, non-carinate

femora. Amongst the numerous forms here provisionally referred to it, there are

110 RHYNCHOPHORA.

several with the femora sulcate along the greater part of their length beneath, one

(EZ. septemnotatus) with the anterior femora feebly dentate, and one (F. sqguamu-

latus) with the posterior femora faintly carinate. In £. tenutrostris and its allies,

which will probably have to be separated eventually, the antenne are inserted very

near the base of the rostrum, the prothorax is more or less conical, and the rostrum

and rostral canal are sometimes longer in the female thanin the male. In EF. scutulatus

and E. coruscus the meso- and metasternal excavation is wanting. The mesothoracic

epimera often ascend more or less, and some of the species (£. nitidus and £. coruscus)

might easily be mistaken for Barids, from which they may be distinguished by the form

of the eyes.

The various Central-American forms, many of which are represented in our

collection by a single example only, may be grouped thus :—

a. Anterior femora obsoletely dentate, the others unarmed, the posterior pair not

carinate externally, all sulcate along the greater part of their length beneath;

rostral canal not extending beyond the mesosternum . . . . . . . . Species 1.

b. All the femora unarmed, the posterior pair not or rarely carinate externally.

a’, Antenne (except in E. levirostris) inserted at some distance from the base

of the rostrum, the latter usually rather stout.

a’, Rostral canal reaching about as far as the posterior margin of the middle

COX2.:

a’. Femora sulcate along the greater part of their length beneath; joints 1

and 2 of the funiculus subequal inlength . . . . . . . . . Species 2.

6°. Femora sulcate at the apex only beneath.

a‘, Eyes smaller; joints 1 and 2 of the funiculus subequal in length.

a’. Vertex with a conspicuous smooth flattened space down the middle ;

elytral strie broad: body subrhomboidal, the vestiture coarse,

the scales on the elytra oval . . . Lo. . Species 8.

6°, Vertex simply punctate; elytral strie narrow: body oblong, the

vestiture rather coarse and overlapping . . - « . Species 4,

b*. Eyes very large ; joint 2 of the funiculus longer than L: , prothorax

hollowed at the apex, with feebly-developed ocular lobes - + « . Species 5.

6°. Rostral canal extending well into the vertical anterior face of the meso-

sternum, not reaching as far as the posterior margin of the middle coxe ;

joint 2 of the funiculus not longer than 1.

c’. Femora sulcate along the greater part of their length beneath. . . Species 6-16.

ad’. Femora sulcate at the apex only beneath.

c’. Body oblong

d’. Body ovate . Loe . see ee

» Rostr al canal (as seen from above) not extending beyond the mesosternum.

. Prothorax subcylindrical ; prosternum with a conical tubercle behind

each anterior coxa ; femora sulcate at the apex only beneath

f°. Prothorax more narrowed anteriorly ; prosternum without conspicuous

tubercle behind the anterior cox.

Species 17, 18.

Species 19,

Species 20.

EULECHRIOPS. 111

e‘, Femora sulcate along the greater part of their length beneath.

c’. Mesosternal depression transverse, very shallow* . . . . . . Species21-23.

ad’. Mesosternal depression deepert. . . . . . . . . + « « Species 24-28.

f*. Femora (or at least the anterior pair) sulcate at the apex only

beneath.

. Mesosternal depression very shallow . . . . .. . . . « Species 29.

p Mesosternal depression deeper . . . . 2. 1. we . Species 30-382.

6. Antenne inserted close to the base of the rostrum, the latter long and slender,

sometimes reaching the middle of the metasternum in the @ ; prothorax

conical, narrow; eyes rather small; joint 2 of the funiculus not longer

than 1; femora sulcate at the apex only beneath; rostral canal deep,

extending as far as, or beyond, the middle coxe . . . . . . . «. « Species33-37.

1. Eulechriops septemnotatus, sp.n. (Tab. VIL. fig. 8.)

Subovate, black, the antenna, rostrum, elytra (except at the sides towards the apex), tibie, and tarsi more or

less ferruginous; the prothorax with a broad stripe at the sides (excised within and extending to very

near the anterior margin) and a spot in the middle at the base (and in one specimen another at the apex),

the elytra with a large scutellar spot, another at the sides beyond the middle, and an oblong streak on

the suture at the tip, and the under surface in great part, densely clothed with coarse white scales; the

rest of the vestiture of the upper surface finer, ochreous, and arranged in lines on the elytra, that of the

legs yellowish-white. Eyes moderately large, subcoritiguous. Rostrum arcuate, rugulose and subcarinate

at the base. Joints 1 and 2 of the funiculus subequal in length. Prothorax transverse, narrowed and

constricted in front; densely, finely punctate, and obsoletely carinate. Elytra much wider than the

prothorax, rounded at the tip; deeply punctate-striate, the interstices not wider than the striz, rugose,

and rather convex. Mesosternal excavation deep, the metasternum strongly declivous in front. Legs

short; femora stout, deeply sulcate beneath, the anterior pair only with a blunt tooth, the others

unarmed.

Length 3, breadth 13 millim.

Hab. Guatemata, Duefias (Champion).

Two specimeus. Very like “. ductilis, but with larger white spots, the one on each

side of the prothorax almost reaching the apex (and shaped as in Lechriops auritus),

the elytra almost wholly ferruginous and without white scales along the basal margin,

the anterior femora with a short tooth.

Smaller than Copturomorpha 11-notata, the anterior femora without trace of bare

strigose area, but armed with a small tooth.

2. Eulechriops ochraceus, sp. n. (Tab. VII. fig. 9.)

Ovate, piceous, the antenne, the apical margin of the elytra, and the tips of the tarsi ferruginous ; somewhat

thickly clothed with narrow ochreous scales, the elytra with a broad indeterminate fascia before the

middle and a patch on the disc towards the apex brownish (leaving a basal and a subapical fascia, and

the suture in great part, ochreous). Eyes moderately large, almost contiguous in front. Rostrum arcuate,

sparsely punctate, rugulose and subcarinate at the base. Joints 1 and 2 of the funiculus subequal in length,

Prothorax transverse, rather convex, rounded at the sides, narrowed and constricted in front ; densely

punctate and subcarinate. Elytra moderately broad, blunt at the apex ; punctate-striate, the interstices

* Wanting in &. scutulatus, which has a very short second joint to the funiculus.

+ Almost obsolete in EH. coruscus.

112 RHYNCHOPHORA.

rugose. Rostral canal deep, extending as far as the posterior margin of the middle coxe. Legs short ;

femora deeply sulcate beneath, unarmed.

Length 33-32, breadth 14-2 millim.

Hab. Guatemaa, Sinanja in Vera Paz (Champion).

Two specimens. The vestiture of the prothorax and under surface in this species

is almost wholly ochreous, the elytra with indeterminate darker markings.

3. Kulechriops squamulatus, sp.n. (Tab. VII. figg. 10, 10a.)

Subrhomboidal, somewhat flattened above, nigro-piceous, the antenne and the apical margin of the elytra more

or less ferruginous; variegated with a dense clothing of coarse white, ochreous, and brown scales, those

on the elytra oval, and arranged in a single row along each stria and in a single or double row on each

interstice, the white scales sometimes clustered into denser patches; the vestiture of the under surface

coarse, dense, and almost wholly white. Head with a smoother bare space along the middle of the vertex ;

eyes large, descending, narrowly separated ; rostrum arcuate, about as long as the head and prothorax,

rugulosely punctate, squamose, and feebly carinate at the base, for the rest smooth and shining ; joints 1

and 2 of the funiculus equal in length. Prothorax transverse, hollowed at the apex, narrowing from near

the base, constricted in front; densely punctate. Elytra wider than the prothorax, rounded-triangular,

deeply punctate-striate, the interstices not wider than the broad striw, rugulose. Rostral canal reaching

as far as the posterior margin of the middle cox, the metasternal depression shallow, the mesosternal

carine not very prominent. Legs short; femora unarmed, the intermediate and posterior pairs faintly

carinate externally.

Length 3-33, breadth 12-13 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sallé); Guatemaua, San Gerdnimo, Guatemala

City, Duefias (Champion).

Ten specimens. Very like Cylindrocopturus albonotatus and C. imbricatus, but with

the meso- and metasternum channelled for the reception of the rostrum. ‘The seriate

punctures of the elytra each bear a rather large oval scale ; the striz and interstices

are subequal in width.

4. Kulechriops nigrolineatus, sp. n. (Tab. VII. fig. 11.)

Oblong-ovate, nigro-piceous, the antenne, the tip of the rostrum, apical margin of the elytra, and tarsi

ferruginous; thickly clothed with coarse, brown, overlapping scales, with ochreous and whitish scales

intermixed, these latter clustered into a common transverse patch below the base and another at about one-

third from the apex, the intervening portion of the second interstice black, the seriate elytral punctures

each bearing a minute scale, the scales on the prothorax condensed into three vittew. Eyes moderately

large, narrowly separated. Rostrum stout, feebly arcuate, about as long as the head and prothorax,

somewhat closely punctate, rugose at the base. Joints 1 and 2 of the funiculus about equal in length.

Prothorax rather convex, broader than long, slightly rounded at the sides, narrowed and constricted

in front; densely, rugosely punctate, and sharply carinate. Elytra much wider than the prothorax,

moderately long, separately rounded at the apex ; punctate-striate, the strie narrow, the interstices broad,

rugulose, flat. Rostral canal reaching as far as the posterior margin of the middle coxe, the broad

metasternal depression shallow, the mesosternal carine sharp. Legs short; femora unarmed.

Length 33-4, breadth 14—1,°, millim.

Hab. Muxico, Yautepec in Morelos (£/ége).

Iwo specimens, discoloured by immersion in alcohol. A species approaching the

genus Cylindrocopturus, but with the rostral canal extending to the meso- and

EULECHRIOPS. 113

metasternum. ‘The black line at the middle of the second elytral interstice is sharply

defined.

5. Hulechriops boops, sp. n. (Tab. VIL. fige. 12, 12 a.)

Elliptic, black, the antenne: and the apical margin of the elytra obscure ferruginous; the prothorax, and the

elytra with the base, a transverse postmedian fascia, suture, and apical margin clothed with very small,

narrow, cinereous seales, the rest of the elytral vestiture sparse, fuscous, that of the under surface and

legs white. Eyes very large, almost contiguous in front. Rostrum arcuate, long, rugulosely punctate

and subcarinate at the base. Joint 2 of the funiculus much longer than 1, as long as 3 and 4 united.

Prothorax short, gradually narrowing from the base, hollowed at the apex, and with feebly developed

ocular lobes; densely finely punctate, and in one specimen carinate. Elytra much wider than the

prothorax, rounded-triangular, separately rounded at the tip; punctate-striate, the interstices rugose.

Rostral canal deep, rather narrow, reaching as far as the posterior margin of the middle coxe. Legs

comparatively short ; femora unarmed, the posterior pair about reaching the apex of the abdomen.

Length 21-3, breadth 11-14 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Two specimens, the larger one somewhat worn. ‘Distinguishable by the cinereo-

bifasciate elytra, large eyes, long second joint of the funiculus, and deep rostral canal.

The vestiture of the prothorax is uniform, instead of being condensed into sharply

defined spots as in £. albofasciatus. The prothorax is hollowed in front, much as in

Lechriops copturoides.

6. Hulechriops melas, sp.n. (Tab. VII. fig. 13.)

Broad-ovate, black, the antenne and the tips of the tarsi ferruginous; the prothorax with three small spots at

the base and one in the middle in front, and the elytra with a short streak on the second interstice below

the base, another on the suture towards the tip, and a small spot on the eighth interstice beyond the

middle, clothed with coarse, narrow, yellowish-white scales, the rest of the vestiture of the upper surface

brown, sparse, and fine; the under surface with scattered narrow whitish scales, the ventral segments 3-5

bordered externally with a line of coarser ochreous scales, which is continued across the apical portion

of 2, the femora each with a patch of whitish scales about the middle. Head finely punctate; eyes large,

contiguous in front; rostrum stout, arcuate, thickly punctate and carinate at the base ; joints 1 and 2 of

the funiculus equal in length. Prothorax transverse, rather convex, rounded at the sides, narrowed and

constricted in front, deeply bisinuate at the base; densely, coarsely punctate, and feebly carinate. Elytra

broad, somewhat rounded at the sides, blunt at the tip; coarsely punctate-striate, the interstices asperato-

punctate. Rostral canal very deep, extending beneath the anterior margin of the metasternum. Inter-

mediate coxze widely separated. Legs short ; femora unarmed, sulcate beneath.

Length 4,),-41, breadth 23-23 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sallé); GuateMata, Teleman in Vera Paz

(Champion).

Two specimens, agreeing perfectly znter se, both from the Atlantic slope. A broad-

ovate, rugose, black form, with several small scattered whitish spots on the prothorax

and elytra, and a common ochreous annulus on the apical half of the abdomen. The

rostral canal is broad and very deep.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, December 1906. QQ

114 RHYNCHOPHORA.

7. Hulechriops lugubris, sp.n. (Tab. VII. fig. 14.)

Ovate, black, the antenne and tips of the tarsi ferruginous; the upper surface sparsely clothed with fine,

narrow, fuscous, and the under surface with longer and coarser, white, scales, the elytra with a few

hair-like white scales beyond the middle, these being condensed into a short line on the fifth interstice.

Eyes large, contiguous in front. Rostrum rugulosely punctate and carinate at the base. Joint 2

of the funiculus a little shorter than 1. Prothorax transverse, rather convex, rounded at the sides,

constricted and narrowed in front; densely, coarsely punctate and carinate. LElytra broad, obliquely

truncate at the tip; coarsely punctate-striate, the interstices asperato-punctate. Rostral canal deep,

extending beneath the emarginate anterior margin of the metasternum. Legs short; femora unarmed,

sulcate beneath.

Length 32, breadth 2 millim.

Hab. Panama, near the city (Champion).

One specimen. Smaller than Z. melas, the elytra with a short line of narrow white

scales on the fifth interstice beyond the middle (instead of two conspicuous yellowish-

white spots near the suture), the metasternum deeply emarginate in front, the ring of

ochreous scales on the abdomen wanting.

8. Eulechriops melancholicus, sp. n. (Tab. VII. fig. 15.)

Oblong-elliptic, robust, shining, black, the antenne and tarsi ferruginous; sparsely clothed with small, narrow,

white scales, which on the prothorax are mostly clustered along the basal margin, those on the elytra

condensed into a faint, common, curved fascia before the middle, extending along the suture to the base,

anda broad streak along the suture at the apex, the rest of the elytral surface with scattered darker scales.

Head sparsely punctate ; eyes moderately large, subcontiguous ; rostrum widened towards the base and

apex, rugulosely punctate, smooth along the middle; joint 2 of the funiculus shorter than 1. Prothorax

broader than long, rather convex, somewhat rounded at the sides, narrowed and constricted in front ;

closely punctate, the punctures well separated one from another, the disc distinctly carinate down the

middle. Elytra much wider than the prothorax, separately rounded at the apex; deeply punctate-

striate, the interstices uniseriate-punctate. Rostral canal very deep, extending beneath the anterior

margin of the metasternum. Legs short and stout ; femora unarmed, sulcate beneath.

Length 3, breadth 1} millim.

Hab. GuateMaLa, Zapote (Champion).

One specimen. Not unlike Lechriops sciurus (the type of the genus Lechriops),

but more elongate, the punctuation of the prothorax finer and not so close, the elytra

faintly albo-fasciate below the base, the femora more robust and unarmed, the eyes

less acuminate below.

9. Eulechriops brevipes, sp.n. (Tab. VII. fig. 16.)

Ovate, rather convex, shining, black, the rostrum, antenne, apical margin of the elytra, knees, tibise, and

tarsi ferruginous ; the prothorax with a broad space along the sides and a spot in front of the scutellum,

the elytra with several short streaks at the base, the suture, a rather broad angulate fascia beyond the

middle, and a transverse fascia at the apex (the two fasciz connected along the suture and fourth

interstice), a spot on the mesothoracic epimera, the metasternum, and abdomen, thickly clothed with

narrow yellowish-white scales, the rest of the surface, the legs included, almost bare or with minute

scattered hair-like scales. Head small; eyes contiguous, moderately large; rostrum stout, rugulose and

subcarinate at the base, smooth at the tip ; joints 1 and 2 of the funiculus equal in length, 5—7 transverse.

Prothorax short, narrowing from the base; densely, very finely punctate, and obsoletely carinate.

EULECHRIOPS. 1165

Scutellum small. Elytra much wider than the prothorax, rounded at the sides, broadly truncate at the

tip; deeply punctate-striate, the interstices punctulate and feebly convex. Mesosternal depression very

broad, limited on each side by an oblique ridge. Intercoxal portion of the metasternum broad, deeply,

semicircularly excavate in front. Legs very short; femora unarmed, sulcate beneath, the posterior pair

not reaching beyond the second ventral suture.

Length 21, breadth 1} millim.

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

One specimen. This species—one of many interesting forms obtained in the

bamboo-thickets at a high elevation on the forest-clad slope of the Volcan de

Chiriqui—may be known by its broad, rounded-subquadrate, sharply fasciate elytra,

narrow, subconical, laterally vittate prothorax, and very short legs. ‘The mesosternal

depression is broad, and the rostral canal extends to the front of the metasternum.

10. Hulechriops tuberculifer, sp.n. (Tab. VII. figg. 17, 17 a.)

Ovate, rather convex, piceous, the head, antenne, rostrum, anterior lobe of prothorax, shoulders and apical

portion of elytra, tip of abdomen, and legs more or less ferruginous ; the vestiture fine, flavo-cinereous,

sparser on the middle of the prothorax and condensed into narrow lines on the elytra, the elytra with a

darker transverse fascia before the middle and a short whitish streak a little below the base of the first

and second interstices, the prothorax with a patch at each hind angle and a short streak at the middle

of. the base, and the under surface and legs, also whitish. Eyes large, contiguous in front. Rostrum

arcuate, sparsely punctate, rugulose at the base. Joint 2 of the funiculus shorter than 1. Prothorax

transverse, somewhat rounded at the sides, constricted and narrowed in front; densely, finely punctate,

and obsoletely carinate. Elytra much wider than the prothorax, rounded-triangular, short, conjointly

rounded at the apex; punctate-striate, the interstices not wider than the strie, rugose. Rostral canal

deep, broad, the metasternal excavation short and triangular. First ventral segment with a prominent

compressed tubercle in the middle at the apex. Legs short ; femora sulcate beneath, unarmed.

Length 2, breadth 14; millim. (¢.)

Hab. Guatemana, San Gerdnimo (Champion).

One specimen. This is the only Zygopid I have seen as yet with a tubercle on the

first ventral segment.

11. Eulechriops flavitarsis, sp. n. (Tab. VII. fig. 18.)

Ovate, somewhat flattened above, black, the antenna, rostrum, tibie, tarsi, and apical margin of the elytra

rufo-testaceous ; the head with a line around the eyes, the prothorax in great part (a large rounded

patch on the disc excepted), the elytra with numerous short streaks at the base, across the middle (here

forming an irregular, common, arcuate fascia), and at the apex, the under surface, and legs, somewhat

thickly clothed with rather coarse, narrow, white scales, the rest of the vestiture of the prothorax and

elytra sparse and brownish. Eyes moderately large, almost contiguous. Rostrum slender, arcuate,

rugulosely punctate at the base. Joint 2 of the funiculus a little shorter than 1. Prothorax transverse,

narrowing from the base, strongly constricted in front; densely, finely punctate. LElytra rather broad,

rounded at the apex; punctate-striate, the interstices very little wider than the striw, rugulose, flat.

Rostral canal broad, deep, smooth, extending into the anterior portion of the metasternum. Legs short

femora deeply sulcate beneath, unarmed.

Length 24, bre adth 12 millim.

Hab. Guatemata, Duefias (Champion).

QQ 2

116 RHYNCHOPHORA.

One specimen. Less depressed above than E. maculicollis, the markings very

different, the elytra more narrowed behind, the femora black, the rostral canal

extending beneath the hollowed anterior margin of the metasternum.

12. Eulechriops albofasciatus, sp.n. (Tab. VII. fig. 19.)

Ovate, nigro-piceous or black, the rostrum, antenne, apical margin of the elytra, and legs ferruginous; the

prothorax with a large spot at each angle (the anterior one extending down the flanks) and two others

along the middle of the disc, the elytra with two transverse fascie (one basal, the other beyond the

middle, and both interrupted by the striz), the posterior one extending narrowly along the suture to the

tip, and the under surface, thickly clothed with coarse white scales ; the rest of the vestiture sparse and

rather fine, blackish-brown on the elytra, white on the legs. Eyes large, subcontiguous. Rostrum

rather short, sparsely, finely punctate, rugulose at the base. Joint 2 of the funiculus a little shorter

than 1. Prothorax short, constricted and narrowed in front; densely, finely punctate, and also carinate.

Elytra somewhat rounded at the sides, blunt at the tip; deeply punctate-striate, the interstices rugulose,

not wider than the striz. Rostral canal broad and deep, extending into the anterior portion of the

metasternum. Legs short, femora unarmed, sulcate beneath.

Length 24-27, breadth 13-13 millim.

Hab. Panama, Bugaba (Champion).

Two specimens. The six white spots on the prothorax and the two transverse

white fasciz of the elytra distinguish E. aldofasciatus.

13. Eulechriops ornatus, sp. n. (Tab. VII. fig. 20.)

Short ovate, black, the antenne, tip of the rostrum, apical margin of the elytra, and tarsi more or: less

ferruginous; the prothorax with three spots at the base and three at the apex, and the elytra with

various short streaks at the base and apex, one on the suture towards the tip, and one near the middle

of each of the interstices 4, 6, and 8, clothed with rather coarse, narrow, white scales; the rest of the

vestiture of the upper surface fuscous, sparse, and fine, that of the under surface and legs coarser,

closer, and wholly white. Eyes very large, contiguous in front. Rostrum arcuate, rugulosely punctate

and finely carinate at the base. Joints 1 and 2 of the funiculus equal in length. Prothorax rather

convex, transverse, subconical, constricted in front; densely, coarsely punctate, and carinate. Elytra

rather short and broad, separately rounded at the apex ; coarsely punctate-striate, the interstices rugose.

Rostral canal broad and deep, extending into the anterior portion of the metasternum. Legs short;

femora unarmed, shallowly sulcate beneath.

Length 24-21, breadth 15 millim.

Hab. Panama, Caldera in Chiriqui (Champion).

One specimen. The unarmed femora distinguish EF. ornatus from most of the

similarly-marked Central-American forms.

14. Eulechriops muticus, sp.n. (Tab. VII. fig. 21.)

Subovate, rufo-piceous, the under surface and femora blackish, the antenne, rostrum, apical margin of the

elytra, tibize, and tarsi ferruginous; the prothorax with three small transverse patches at the base, and

the elytra with a short streak at the base of each of the interstices 2-4, another at the middle of the

suture, another at its apex, and a small spot at the middle of the eighth interstice, clothed with small,

narrow, white, piliform scales; the rest of the vestiture very fine, sparse, and inconspicuous. Eyes

moderately large, contiguous in front. Rostrum strongly arcuate, finely punctate. Joint 2 of the

funiculus shorter than 1. Prothorax short, rapidly narrowing from the base, subconical; densely, finely

EULECHRIOPS. 117

punctate. Elytra broad, rounded-triangular, separately rounded at the tip; punctato-sulcate, the

interstices convex, rugulose, not wider than the shallowly punctured, deep strie. Rostral canal broad,

extending into the anterior portion of the metasternum. Legs short; femora unarmed, sulcate beneath.

Length 24, breadth 14 millim.

Hab. Panama, Caldera in Chiriqui (Champion).

One specimen, doubtless immature. Shorter than EZ. ornatus, the prothorax rapidly

narrowing from the base and much less rugose, the elytra sulcate, with smoother

interstices, the legs more slender, the vestiture finer, the elytral spots smaller, fewer

in number, and differently placed. . erythroleucus, Faust, from Venezuela (the

type of which I have seen *), is an allied form.

15. Kulechriops perpusillus, sp. n.

Ovate, shining, ferruginous, the head and under surface piceous; the head, the prothorax with the sides,

flanks, apex, and an interrupted median vitta, the elytra with various interrupted lines (one on each

interstice at the base), and the under surface in part, clothed with coarse narrow white scales, the

prothorax with short erect brown scales on the disc. Eyes large, subcontiguous. Rostrum feebly

arcuate, about as long as the prothorax, rugulosely punctate and squamose in its basal half, smooth at

the tip. Joint 2 of the funiculus much shorter than 1. Prothorax short, somewhat gibbous, narrowing

from the base, densely punctate. Scutellum scarcely visible. Elytra much wider than the prothorax,

narrowing from the base ; deeply punctate-striate, the interstices punctulate and rather convex. Rostral

canal deep, smooth, extending into the vertical anterior face of the metasternum. Legs short; femora

unarmed, deeply sulcate beneath ; tibie and tarsi slender.

Length 13, breadth 2 millim.

Hab. British Hoypuras, Rio Hondo (Blancaneaur).

One specimen. ‘This minute insect may be known by the somewhat gibbous

prothorax, deep rostral canal, short legs, and deeply sulcate, unarmed femora, The

form and position of the eyes separate H. perpusillus from all the Barina.

16. Eulechriops seriatus, sp. n. (Tab. VII. fig 30.)

Subovate, reddish-brown, the antennae, rostrum, and legs ferruginous; the prothorax with a spot at each

hind angle, extending forwards along the flanks beneath, the elytra with the suture, a short streak on the

second interstice below the base, a spot on the shoulder in front, and another at the sides beyond

the middle, and the mesothoracic epimera, somewhat thickly clothed with whitish scales, the elytral

interstices each with a line of finer, ochreous, hair-like scales ; the rest of the vestiture of the prothorax

very fine, that of the under surface and legs whitish. Rostrum arcuate, moderately stout, rugulose and

carinate at the base, and almost smooth thence to the tip. Eyes large, subcontiguous. Prothorax

transverse, rounded at the sides anteriorly, constricted and narrowed in front; densely, finely punctate,

* Dr. Heller has also been kind enough to communicate one of the types (a 2) of Lsotrachelus brunneus,

Faust (Stett. ent. Zeit. 1896, p. 94). The genus is synonymous with Microcleogonus, described in the

preceding volume of this series [Coleopt. iv. 4, pp. 458, 459, t. 22. figg. 17, 17 a-c (¢) (1905)], and the

latter name must be sunk. J. brunneus is very like Microcleogonus tibialis, but has a longer and more

slender rostrum, less deeply impressed elytral strive, and closer and finer vestiture. I omitted to note

(loc. cit. p. 459) that the 9 of M. tibiaks has a longer, straighter, and smoother rostrum than the ¢,

and that the fifth ventral segment has a closely punctate depressed area in the middle in the latter sex.

Faust refers Isotrachelus to the ‘‘Isorhynchides” of Lacordaire; but the genus seems to me to be closely.

related to Cleogonus of the group “ Cryptorrhynchina,” where it is placed in this work.

118 RHYNCHOPHORA.

and finely carinate. Elytra shining, deeply punctate-striate, the interstices rugulosely punctate, slightly

wider than the strie. Rostral canal deep, closed behind, entering the declivous anterior portion of the

metasternum. Femora sulcate beneath, unarmed.

Length 22, breadth 13 millim,

Hab. Mexico, Cerro de Plumas (/ége).

One specimen. Not unlike the Venezuelan £. erythroleucus, Faust, but larger,

with an uninterrupted line of yellowish hair-like scales down each elytral interstice, and

the denser, whitish, sutural streak widened below the base, the elytra also with a white

spot at the sides beyond the middle, the rostrum stouter, &c.

17. Eulechriops longipennis, sp.n. (Tab. VII. figg. 22, 22 a.)

Oblong, somewhat convex above, rufo-piceous ; the prothorax with a transverse space at each angle and a broad

interrupted median vitta, the elytra with the base, apex, suture, and an interrupted postmedian fascia,

the entire under surface, and legs, thickly clothed with small, narrow, flavo-cinereous scales, the rest of

the upper surface almost bare. Head finely punctate; eyes moderately large, narrowly separated ;

rostrum arcuate, rather stout, closely punctate at the base; joint 2 of the funiculus shorter than 1.

Prothorax transverse, strongly rounded at the sides, constricted and narrowed in front; densely, finely

punctate, and carinate. Elytra comparatively long, a little wider than the prothorax, blunt at the tip ;

with sinuous, finely punctured strie, separated by broad, flat, rugulose interstices. Beneath closely

punctate. Rostral canal deep, extending into the anterior portion of the metasternum. Legs short ;

femora unarmed.

Length 4, breadth 1;°, millim.

Hab. Panama, Bugaba (Champion).

One specimen, perhaps a little worn. An isolated form, recognizable by its oblong

shape, fine sculpture, trifasciate elytra, &c. The elytra are relatively narrower than

in EL. nigrolineatus, being very little wider than the prothorax.

18. Eulechriops elongatus, sp. n. (Tab. VII. fig. 23.)

Oblong, narrow, nigro-ficeous, the antenne, rostrum, anterior portion of the prothorax, elytra, and legs

obscure ferruginous ; the prothorax with three small patches in front and three at the base, the elytra

with an elongate patch on the anterior portion of the suture, another at its apex, the base, and a broad

space on the outer part of the disc beyond the middle, the under surface, and legs, clothed with small,

narrow, flavo-cinereous scales, the rest of the upper surface almost bare. Eyes moderately large,

narrowly separated. Rostrum stout, feebly arcuate, sparsely, minutely punctate. Joint 2 of the

funiculus shorter than 1. Prothorax transverse, rounded at the sides, narrowed and constricted in

front; densely, finely punctate, and with a short median carina. LElytra a little wider than the

prothorax, rather long, rounded at the tip; punctate-striate, the interstices shining, punctulate, and

somewhat convex. Rostral canal deep, extending into the anterior portion of the metasternum. Legs

short, rather slender; femora unarmed.

Length 24, breadth 1 millim.

Hab. Mexico, Yautepec in Morelos (//6ge).

One specimen. Very like a N.-American insect sent me by Mr. Wickham under

the name Copturus minutus, Lec.*, but with the rostral canal extending to the

* The type of the genus Zygomicrus, Casey, who places it in his table amongst the genera with the

“‘mesosternum not excavated.” The insect sent me by Mr. Wickham has a deep mesosternal cavity.

EULECHRIOPS. 119

anterior portion of the metasternum, the eyes less approximate in front, the prothorax

more rounded at the sides, &c. Smaller and narrower than £. longipennis, the eyes

smaller, the elytral markings different, the interstices smoother.

19. Eulechriops cinerascens, sp. n.

Subovate, nigro-piceous, the antennz, rostrum, apical margin of the elytra, tarsi, and apices of the tibix

ferruginous ; the vestiture fine, somewhat sparse, cinereous, condensed into a narrow line along each

elytral interstice, the metasternal side-pieces with a denser whitish patch. Eyes rather large, contiguous

in front. Rostrum arcuate, rugulose at the base. Joint 2 of the funiculus much shorter than 1.

Prothorax transverse, slightly rounded at the sides, narrowed in front; densely, finely punctate.

Elytra wider than the prothorax, blunt at the tip; punctate-striate, the interstices narrow, not wider

than the striw, rugose. Rostral canal deep, reaching the anterior face of the metasternum, margined

posteriorly. Legs short; femora unarmed.

Length 24, breadth 11 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. This insect resembles a small Ceuthorrhynchus ; it has the vestiture

of the upper surface uniformly cinereous and arranged in narrow lines on the elytra.

20. Hulechriops cylindricollis, sp.n. (Tab. VII. fig. 24.)

Elliptic, rather convex, narrow, opaque, black, the basal half of the antenne, the apical margin of the elytra,

and the tips of the tarsi ferruginous; the elytra with a narrow sinuous fascia at the base and an oblique

streak at the sides below it, the mesothoracic epimera, metasternum, and abdomen clothed with coarse

white scales; the punctures of the prothorax each bearing a small, narrow, appressed white scale, and

the apical two-thirds of the elytra clothed with long, white, hair-like scales; the vestiture of the rest of

the surface, and of the legs also, white. Eyes moderately large, contiguous in front, narrowly separated

above. Rostrum short, stout, rugulose and finely carinate in its basal half, and finely punctate thence

to the tip. Joints 1 and 2 of the funiculus equal in length, 6 and 7 strongly transverse. Prothorax

transverse, subcylindrical, slightly narrowed in front ; closely, finely punctate, and obsoletely carinate.

Elytra oblong-cordate, somewhat rounded at the tip; deeply punctate-striate, the interstices rugulose

and almost flat. Prosternum with a long conical tubercle behind each anterior coxa, similar to that on

the coxa itself. Mesosternum transversely depressed, the depression limited on each side by an oblique

ridge. Metasternum flattened and declivous in front. Legs rather long; femora unarmed, sulcate at

the apex only beneath, the posterior pair reaching as far as the apex of the abdomen.

Length 24, breadth 14 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. A remarkably distinct form, recognizable by its oblong-elliptic

form, subcylindrical prothorax, and peculiar elytral markings, the upper surface clothed

with three different kinds of white scales, the prosternum tuberculate behind the

anterior coxe.

91. Eulechriops scutulatus, sp.n. (Tab. VII. fig. 25.)

Oblong-ovate, robust, rather shining, black ; a spot on each side of the prothorax at the base, the basal margin,

a rather large rounded scutellar patch on the elytra, a smaller spot on the suture at the apex, a spot on

the mesothoracic epimera, the metasternum, a patch on the first ventral segment, a transverse fascia at

the apex of the second, and the sides of the segments 3-5, clothed with coarse white scales. Head

closely punctate; eyes moderately large, subcontiguous in front, separated above by a rather broad

120 RHYNCHOPHORA.

lanciform space ; rostrum closely, rather coarsely punctate in its basal half, without median carina ; joint 2

of the funiculus about half the length of 1, the club rather narrow. Prothorax transverse, convex,

rounded at the sides, narrowed in front; densely punctate. Elytra a little wider than the prothorax,

truncate at the apex, the humeri not prominent; punctato-sulcate, the interstices flattened and almost

smooth, narrow on the disc, broad towards the sides. Mesosternum broad, declivous, unimpressed.

Intercoxal portion of the metasternum broad, flattened. Ventral segment 1 flattened and rugulosely

punctate in the middle; 2 abruptly declivous posteriorly, Legs short; femora unarmed, shallowly

sulcate beneath.

Length 34, breadth 13 millim. (¢.)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. This species has the general facies of EH. melancholicus, &c., but

the mesosternal impression is wanting and the eyes are well-separated above. The

elytral interstices are flattened and almost smooth. The patches of coarse white scales

are sharply defined, above and beneath. |

22. Kulechriops sexnotatus, sp. n. (Tab. VII. fig. 26.)

Oblong-ovate, rather convex above, black, the antenne, apical margin of the elytra, and tips of the tarsi

ferruginous; the prothorax with a spot at each hind angle, the elytra with a spot on the suture below

the base, a smaller one towards the tip, and a spot on each side beyond the middle, and the under surface

in great part, clothed with coarse whitish scales, the rest of the upper surface almost bare, the legs with

whitish scales. Eyes moderately large, subcontiguous. Rostrum stout, arcuate, rugulosely punctate and

finely carinate at the base. Joint 2 of the funiculus shorter than 1. Prothorax transverse, rounded at

the sides, constricted and narrowed in front; densely, finely punctate. Elytra much wider than the

prothorax, rounded at the tip, the humeri rather prominent; punctato-sulcate, the interstices not wider

than the strie, irregularly uniseriate-punctate. Mesosternal depression shallow, transverse, the broad

metasternum declivous in front. Legs short and stout; femora unarmed, shallowly sulcate beneath, the

intermediate and posterior knees rather sharp.

Length 23, breadth 1} millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen, rather worn. Very like £. scutulatus, but with the elytra more

rounded at the sides and with a white lateral spot, the interstices less flattened and not

so smooth, the prothorax less coarsely punctate, the eyes much more approximate

above, the broad mesosternal depression distinct, the second joint of the funiculus

longer. We have here two closely related forms, one with (£. sernotatus) and the

other without (£. scutulatus) distinct mesosternal excavation, showing that this

character cannot always be relied upon for generic separation.

23. Kulechriops albolineatus, sp.n. (Tab. VII. fig. 27.)

Subelliptic, black, the antenne and the apical margin of the elytra obscure ferruginous ; above sparsely, the

legs and under surface thickly, clothed with rather coarse white scales, the scales on the prothorax

condensed into three vitte (the two outer ones widening inwards towards the base) and those on the

elytra into an interrupted line on each interstice. Eyes moderately large, narrowly separated in front.

rostrum rugulosely punctate in its basal half, not carinate. Joint 2 of the funiculus about half the

length of 1. Prothorax a little broader than long, narrowed and feebly constricted in front ; densely

punctate. lytra considerably wider than the prothorax, separately rounded at the tip; deeply punctate-

striate, the interstices flattened and rugose. Mesosternum very slightly depressed, the depression

EULECHRIOPS. 121

limited on each side by a faint oblique ridge. Intercoxal portion of the metasternum broad, flattened.

Legs short, stout; femora unarmed, sulcate beneath ; tarsal claws very small.

Length 27, breadth 12 millim.

Hab. Mexico, Tapachula in Chiapas (Hdge).

One specimen. Near E. scutulatus, but with the prothorax trivittate, and the

elytra narrowly interruptedly lineate with white, the interstices of the latter rugose

and the apices separately rounded, the mesosternum very shallowly transversely

depressed, the eyes more approximate above.

24. Eulechriops ductilis, sp. n. (Tab. VII. fig. 28.)

Oblong-elliptic, black, the antenns, tip of the rostrum, apical margin of the elytra, tibie, and tarsi ferruginous ;

the prothorax with a large spot on each side at the base and a small one in front of the scutellum, the

elytra with the suture or an oblong spot at its base and apex, a streak at the base of the second

interstice, and a spot at the sides beyond the middle, and the under surface, thickly clothed with coarse

white scales; the rest of the vestiture finer, ochraceous or brown, the elytra with a few coarser pallid

scales along the base of each interstice, the legs with narrow white scales. Eyes moderately large,

subcontiguous in front. Rostrum rugulosely punctate and feebly carinate, smoother at the tip. Joint 2

of the funiculus slightly shorter than 1. Prothorax a little broader than long, gradually narrowing

forwards, constricted in front; densely punctate. Elytra deeply punctate-striate, the interstices narrow

and rugose. Rostral canal deep, just entering the abruptly declivous metasternum. Legs short ; femora

without trace of tooth, suleate beneath.

Var. The disc of the elytra ferruginous to beyond the middle.

Length 2-22, breadth 1-1} millim.

“39

Hab. Mexico, Chilpancingo (H. H. Smith) ; Guatemata, Dueftas (Champion).

Three specimens from Mexico and one (the variety) from Guatemala. In this insect

the coarse oval white scales on the elytra are clustered into asutural stripe (sometimes

reduced to two oblong spots) and a spot at the sides, and those on the prothorax into

three spots at the base, the tibize and tarsi are wholly ferruginous, and the femora are

unarmed *, From &. septemnotatus it may be known by the unarmed anterior femora.

25. Eulechriops pygmzus, sp. n.

Subovate, black, the antenne, rostrum, apical margin of the elytra, tibie, and tarsi ferruginous or rufo-

testaceous ; the prothorax with a spot on each side at the base and an incomplete median vitta, the

elytra: with a short streak on each interstice at the base, an elongate streak on the suture towards

the apex, and a spot on each side beyond the middle, and the under surface in great part, clothed with

coarse white scales, the rest of the vestiture of the upper surface sparse, fine, and brownish, that of the

legs white. Eyes moderately large, contiguous in front. Rostrum arcuate, rugulose at the base. Joint 2

of the funiculus much shorter than 1. Prothorax short, densely punctate, and with a short median

carina. Elytra wider than the prothorax, rounded at the tip; deeply punctate-striate, the interstices

narrow, convex, and rugose. Rostral canal rather deep, not extending beyond the mesosternum. Legs

short ; femora sulcate beneath, unarmed.

Length 12, breadth 1 millim,

Hab. Guatemata, San Juan in Vera Paz (Champion), Coban (Conradt).

* In the British Museum there is a rubbed specimen from ‘“‘ Mexico” perhaps belonging to the same species,

but it has the rostrum more rugose, the prothorax carinate, and the tibie infuscate, and the lateral white

spot on the elytra is wanting.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, December 1906. RR

122 RHYNCHOPHORA.

Two specimens, both from the Atlantic slope. Smaller and less elongate than

E. ductilis, the prothorax more transverse and with a short conspicuous median carina.

In one example the white scales on the elytra show a tendency to form two transverse

interrupted fasciz, as well as an interrupted sutural stripe.

26. Hulechriops nitidus, sp. n. (Tab. VII. figg. 29, 29 a.)

Ovate, rather convex above, shining, black, the antenne, tip of the rostrum, apical margin of the elytra, and

tarsi ferruginous ; the prothorax with a spot at each hind angle, the elytra with a small transverse

scutellar patch, a spot at the middle of the suture, and a short streak at the apex, and the mesothoracic

epimera, thickly clothed with coarse white scales, the rest of the upper surface almost bare; the under

surface and legs rather sparsely, the second ventral segment thickly, clothed with white scales. Eyes

moderately large, oval, contiguous. Rostrum arcuate, finely punctate, rugulose at the base. Joint 2 of

the funiculus much shorter than 1. Prothorax transverse, rounded at the sides, much narrowed in

front; closely, finely punctate, the punctures separate one from another, without trace of median

carina. Elytra convex, wider than the prothorax, blunt at the tip; punctato-sulcate, the interstices

flat and almost smooth, those near the suture not wider than the strie. Mesosternal depression trans-

verse, rather deep. Posterior cox widely separated. Legs very short ; femora unarmed, sulcate beneath,

the posterior pair not reaching beyond second ventral suture.

Length 13, breadth 1 millim.

Lab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. A minute, shining, convex form, with three white patches on the

suture of the elytra and one at each hind angle of the prothorax, the elytral interstices

almost smooth, the legs very short, the rostral canal not extending beyond the

mesosternum.

27. Hulechriops coruscus, sp. n.

Ovate, convex, glossy-black, the apical margin of the elytra and the tips of the tarsi ferruginous ; the elytra

with a short streak of pure white scales at the base of the second interstice and another at the middle of

the suture, the seriate punctures also bearing very minute whitish scales; the under surface and legs

sparsely clothed with small white scales. Head very finely, somewhat sparsely punctate ; eyes moderately

large, contiguous; rostrum rather slender, feebly arcuate, about as long as the prothorax, closely

punctate at the base and almost smooth thence to the tip; joint 2 of the funiculus shorter than 1.

Prothorax convex, broader than long, constricted in front, the sides arcuately converging from the base;

closely, finely punctate. Elytra much broader than the prothorax, rapidly narrowing from a little below

the base, the apices narrowly explanate and broadly subtruncate; deeply punctato-sulcate, the interstices

broad, flat, and almost smooth. Beneath closely punctate; mesosternum subvertical, broadly flattened ;

metasternum declivous in front, unimpressed; anterior coxee each with a small conical prominence ;

intermediate cox very widely separated; legs short; femora sulcate beneath, unarmed, the posterior

pair reaching the second ventral suture.

Length 3, breadth 12 millim.

Hab, Panama, Volcan de Chiriqui (Champion).

One specimen. Near £. nitidus, but much larger; the prothorax glabrous above ;

the elytra narrowly explanate at the apex, the interstices broad; the mesosternum

very broadly flattened, almost unimpressed.

98. Kulechriops levirostris, sp.n. (Tab. VIII. fig. 1.)

Subovate, piceous, the antenne, rostrum, and tarsi ferruginous ; the prothorax with a transverse patch at each

angle (the anterior ones extending down the flanks and the posterior ones connected across the base), and

EULECHRIOPS. 123

the elytra with a large triangular scutellar patch (extending outwards to the humeri), the suture broadly

thence to the tip, and a common transverse fascia beyond the middle, clothed with rather long, piliform,

whitish scales, the rest of the vestiture of the upper surface sparser and darker, that of the under surface

and legs whitish. Eyes moderately large, contiguous in front. Rostrum feebly arcuate, slender, short,

smooth and shining, except at the base, the antenne inserted far behind the middle, joint 2 of the

funiculus much shorter than 1. Prothorax transverse, strongly rounded at the sides, narrowed in

front ; densely, finely punctate, and subcarinate. Elytra a little wider than the prothorax, rounded-

subquadrate, blunt at the tip; shallowly punctate-striate, the interstices rugulose, flat, and much broader

than the narrow strie. Mesosternal excavation narrow, the metasternum unimpressed. Legs very short ;

femora unarmed, shallowly sulcate beneath, the posterior pair reaching the second ventral suture.

Length 23, breadth 14 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Smaller and less elongate than EZ. longipennis, the rostrum shorter,

smoother, and more slender, the canal not impinging on the metasternum, the legs

shorter, the femora with a longer sulcus beneath. The broader prothorax, with

strongly rounded sides, the narrower and shallower elytral striae, the shorter rostral

canal, &c., separate E. levirostris from LZ. brevipes. The antenne are inserted rather

near the base of the rostrum.

29. Kulechriops leucospilus, sp. n. (Tab. VII. fig. 31.)

Elliptic, rather narrow, black, the antenne, apical margin of the elytra, and tarsi ferruginous ; the prothorax

with a large spot on each side at the base and sometimes a small one on the median lobe, the elytra with

a common A-shaped mark below the base, a transverse patch at the sides before the middle, a large spot on

the suture beyond the middle, and the apex, and the under surface in great part, thickly clothed with

coarse white scales, the elytra also with scattered ochreous scales, which become more crowded on the

basal portion of each interstice, the rest of the vestiture of the upper surface fine and inconspicuous, that

of the legs white. Eyes moderately large, subcontiguous in front. Rostrum short, stout, arcuate,

rugulosely punctate and subcarinate at the base. Funiculus stout, joint 2 about half the length of 1.

Prothorax broader than long, somewhat rounded at the sides anteriorly, constricted and narrowed in

front ; densely, finely punctate. Elytra wider than the prothorax, rounded at the tip; deeply punctate-

striate, the interstices narrow, convex, rugose. Mesosternum vertical, slightly depressed. Legs short ;

femora unarmed.

Length 22, breadth 11 millim.

Hab. Guatemata, Duefias (Champion).

Two specimens. The short stout rostrum and funiculus, the shallow mesosternal

excavation, and the peculiar elytral markings distinguish /. leucospilus. The white

scales on the elytra are condensed into a common, interrupted, angulate fascia below

the base and a large spot on the suture beyond the middle; and the ochreous ones into

a transverse band at the base, much as in Lechriops flavofasciatus.

30. Eulechriops plagiatus, sp. n. (Tab. VII. fig. 32.)

Ovate, robust, shining, nigro-piceous, the upper surface in great part ferruginous (a very large subtriangular

blackish space at the sides of the elytra excepted), the rostrum, antenne, knees, tibie, tarsi, and abdomen

also ferruginous; the vestiture rather coarse and close: the head with a fulvous line around the eyes ;

the prothorax fulvous, with a large rounded patch on each side at the base, and an interrupted median

line, yellowish-white ; the elytra with the dark lateral spaces, which are connected near the middle by an

interrupted fascia, clothed in great part with black scales, the apex. broadly and the base fulvous, and the

suture in part, and an interrupted undulate fascia before the middle, white; the under surface clothed

RR 2

124 RHYNCHOPHORA.

with coarse yellowish-white scales, the ventral segments 3 and 4 with a transverse fulvous space at the

middle; the vestiture of the legs whitish and fulvous, the posterior femora with a dark space towards

the apex. Eyes moderately large, narrowly separated. Rostrum stout, carinate and rugulose at the

base. Joints 1 and 2 of the funiculus equal in length. Prothorax transverse, subconical, constricted in

front; densely, finely, rugulosely punctate, and subcarinate. Elytra rather convex, flattened at the base,

rounded at the sides, blunt at the tip; deeply punctate-striate, the interstices almost flat. Mesosternal

excavation shallow, trapezoidal, the metasternum declivous in front. Anterior coxal prominences pointed.

Legs short; femora unarmed, the posterior pair compressed.

Length 34, breadth 1,9 millim.

Hab. Guatemata, Duefas (Champion).

One specimen. An isolated form. The disc of the prothorax and the base and apex

of the elytra are clothed with fulvous scales, the triangular black lateral patches on the

elytra are connected across the middle, and the rounded yellowish-white spot on each

side of the base of the prothorax is sharply defined.

31. Eulechriops maculicollis, sp.n. (Tab. VII. fig. 33.

Ovate, flattened above, shining, nigro-piceous, the dorsal surface of the elytra, the apex of the abdomen, the

antenney, rostrum, and legs ferruginous; the prothorax with a very large, rounded, dense patch of white

scales on each side (extending from the base to near the apex), and the elytra with two spots on the

outer part of the disc also white, the rest of the vestiture of the upper surface sparse, ochreous, and

piliform, that of the under surface coarse, close, and white, the legs with fine, whitish, piliform scales

Eyes large, subcontiguous. Rostrum arcuate, rugulosely punctate at the base. Joints 1 and 2 of the

funiculus subequal in length. Prothorax short, narrowing from near the base, constricted in front ;

densely, finely punctate and obsoletely carinate. Elytra broad, rounded at the apex, flattened on the

disc; punctate-striate, the interstices narrow, feebly convex, and rugulose. Mesosternal excavation

broad and rather deep, the carine sharp, the metasternum simply declivous in front. Legs short, rather

slender ; femora unarmed, the posterior pair reaching a little beyond the second ventral suture.

Length 22, breadth 12 millim.

Hab. Mexico, Jalapa (Hége).

One specimen, somewhat abraded beneath. Distinguishable by the very large dense

white patch on each side of the prothorax, the flattened, rufescent elytra, with two

small white spots on the outer margin, and the reddish legs.

82. Eulechriops pusillus, sp.n. (Tab. VIII. figg. 2, 2a.)

Short ovate, rather convex above, black, the antenne, rostrum, elytra (an elongate streak on the basal portion

of the suture excepted), tibiw, and tarsi ferruginous or testaceous; the vestiture whitish, in one specimen

intermixed with ochreous above, rather close, and on the elytra mainly condensed into various transverse

patches and a broad interrupted sutural stripe, the prothorax with two bare spaces on the disc. Eyes

moderately large, almost contiguous in front. Rostrum short, stout, arcuate, slightly widened at the tip,

finely punctate, rugose at the base. Joint 2 of the funiculus much shorter than 1. Prothorax transverse,

rounded at the sides, constricted and much narrowed in front ; densely, finely punctate. Scutellum scarcely

visible. Elytra comparatively short, much wider than the prothorax, rounded at the apex; deeply

punctate-striate, the interstices convex, a little wider than the strie, punctulate. Mesosternal excavation

broad, trapezoidal, the metasternum declivous in front. Legs very short and stout; femora unarmed, the

posterior pair not reaching beyond the second ventral suture, the intermediate and posterior pairs shallowly

suleate beneath ; tarsal claws minute.

Length 2, breadth 1/4;-14 millim.

Hab. GuateMALA, Duefias and Capetillo (Champion).

EULECHRIOPS. , 125

Two specimens. A minute, short-ovate form, with rufescent elytra (a streak at the

base of the suture excepted), and their vestiture mainly condensed into interrupted

transverse fasciz, the legs very short and stout.

33. Hulechriops conicicollis, sp. n. (Tab. VIII. figg. 3, 3a, b.)

Rhomboidal, obscure ferruginous, the elytra each with an oblique dark streak near the suture before the

middle (the two streaks forming a common w-shaped mark) ; thickly clothed with small scales : the head,

the prothorax with a broad sharply-defined vitta on each side (extending halfway down the flanks) and

a narrow median line, the elytra with two irregular fascie (one below the base and another at the middle),

the humeri, and suture, the under surface, and legs, ochreous or flavo-cinereous, the seriate elytral

punctures each with a piliform whitish scale, the rest of the vestiture of the upper surface reddish-brown

or ferruginous, Eyes moderately large, contiguous. Rostrum comparatively slender, curved, about as

long as the head and prothorax, sparsely punctate, a little smoother in the 9, the antenne inserted near

the base, the funiculus slender, joints 1 and 2 subequal in length, 4 longer than 3. Prothorax broader

than long, conical; densely, finely punctate, and feebly carinate. Elytra one-half wider than the

prothorax, rounded-triangular ; punctate-striate, the interstices broad, rugose, and feebly convex. Rostral

canal very deep, reaching as far as the posterior margin of the middle coxe, the mesosternal excavation

broad. Legs short; femora unarmed.

Length 3-33, breadth 14-2 millim. (¢ ?.)

Hab. Mexico, Toxpam (Sallé), Jalapa (Hoge); Guatemata, San Geronimo (Champion).

Many specimens from San Gerdnimo, two only from Mexico. A species with the

rostrum comparatively long and slender, and the antenne inserted close to its base, a

conical prothorax, and a very deep rostral canal. The dark v-shaped mark on the

elytra is preceded and followed by several flavo-cinereous spots, which are included in

the pallid fascie.

34. Kulechriops sibinioides, sp. n.

Smaller than £. conzcicollis, the elytra narrower and without the w-shaped darker mark on the disc, the vitte

on the prothorax and the pallid elytral fascize less sharply defined, the prothorax slightly rounded at

the sides posteriorly, the rostrum more slender, that of the 2 smooth.

Length 24-23, breadth 12-13 millim. (¢ @.)

Hab. GuateMaa, Capetillo (Champion).

Two specimens, apparently distinct from F. conicicollis. The rostral canal does not

extend beyond the middle coxe in either sex.

35. Kulechriops tenuirostris, sp. n.

Very like LZ. conicicollis, but with the common y-shaped dark mark on the elytra reduced to a short streak

on the second interstice ; the eyes a little smaller; the rostrum more slender, that of the 9 straighter,

longer than the head and prothorax, and almost smooth ; joint 2 of the funiculus a little shorter than 1,

4 longer than 3; the prothorax slightly rounded at the sides posteriorly, the vitte less sharply defined ;

the elytra blunter at the apex, the pallid fascia reduced to a few spots; the rostral canal of the 9

extending beyond the middle coxe.

Length 24-3, breadth 13-17 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui, Pefia Blanca (Champion).

Seven specimens. The rostrum of the female is longer, straighter, and more slender

than in the same sex of £. sidintoides. The elytra are as broad as in £. conicicollis.

126 RHYNCHOPHORA.

36. Eulechriops filirostris, sp.n. (Tab. VIII. fig. 4, 2.)

Rhomboidal, obscure ferruginous, darker beneath, thickly clothed with small, narrow, yellowish-white scales,

the prothorax with two faint narrow vittw on the disc, and the elytra with a transverse fascia before the

middle and a patch on the disc towards the apex, ochreous or brown. Eyes comparatively small, conti-

euous. Rostrum feebly curved, slender, longer than the head and prothorax, almost smooth. Joint 2 of

the funiculus shorter than 1, 4 slightly longer than 3. Prothorax conical, densely, finely punctate, and

obsoletely carinate. Elytra broad, rounded-triangular ; punctate-striate, the interstices broad and rugose.

Rostral canal reaching beyond the middle coxe. Femora unarmed.

Length 21, breadth 14 millim. (@.)

Hab. Guatemata, San Gerdénimo (Champion).

One specimen. Smaller than E. conicicollis, the eyes not so large, the rostrum ( 2 )

slender and reaching beyond the middle cox, the dark vitte on the prothorax reduced

to sinuous lines, the elytra with a straight dark fascia before the middle. The rostrum

is long and slender, as in the female of E. tenuirostris, from which the present insect

differs in its less robust build, the straighter sides of the prothorax, &c.

37. Eulechriops angusticollis, sp. n. (Tab. VIII. fig. 5, 2.)

Subrhomboidal, castaneous; thickly clothed with small narrow scales: the head, the prothorax with the sides

broadly and a narrow median vitta, the elytra with a large, triangular scutellar patch (extending outwards

to the humeri and running down the suture to near the apex), a transverse row of spots just beyond the

middle, and the apical margin, the under surface, and legs, ochreous or yellowish-white, the rest of the

vestiture of the upper surface brown. Eyes rather small, contiguous. Rostrum curved, depressed at the

base, moderately slender, longer than the head and prothorax, minutely punctate, the antenne inserted

near the base, joint 2 of the funiculus much shorter than 1, 4 longer than 3. Prothorax conical, broader

than long, slightly constricted at the middle; densely punctate and obsoletely carinate. Elytra rather

long, nearly twice as wide as the prothorax, rounded-triangular ; punctate-striate, the interstices broad

and rugulose. Rostral canal reaching the middle of the metasternum, widened at its point of termination.

Legs short; femora unarmed.

Length 3,),, breadth 1? millim. ( 9.)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen, in perfectly fresh condition. Near £. tenwirostris, but with a narrower

prothorax and longer elytra, the latter with a line of spots across the middle and a large

triangular scutellar patch yellowish-white ; the rostrum stouter, depressed at the base,

and more curved; the rostral canal shallower, and widened at its apex.

MACROLECHRIOPS, gen. nov.

Anterior and intermediate coxe each with a flattened conical prominence, the prosternum also with a small

conical prominence behind each coxa; mesosternum deeply excavate, extending broadly backwards

between the middle cox, the oblique lamin prominent; metasternum excavate in front; legs short,

the femora and tibie broad and compressed, the femora unarmed beneath and without external carina,

the intermediate knees angularly dilated within, the tarsi slender, the claws long; antenne inserted

at some distance from the base of the rostrum; prothorax short, arcuato-carinate; scutellum visible;

ventral segments rapidly ascending. ;

The single species referred to this genus approaches Macherocnemis and Copturosomus,

but it cannot be included in either of them, as defined by Heller. The presence of a

MACROLECHRIOPS.—PSOMUS, 127

flattened conical prominence on the intermediate, as well as on the anterior, coxe is

a character I have not observed in any other Zygopid.

1. Macrolechriops spinicoxis, sp.n. (Tab. VIII. fig. 6, 6 a, 3.)

Subovate, dull, piceous, the antenne, tip of the rostrum, apical margin of the elytra, and tarsi ferruginous ;

the vestiture rather sparse, ochreous and whitish, denser and coarser beneath, the prothorax with an

oblong ochreous spot at the middle of the base, the elytra with a few widely scattered coarse scales and

a short streak on the suture beyond the middle whitish, their basal half very sparsely squamose, the

second interstice with a short blackish streak at the middle, the femora subannulate with fuscous. Eyes

large, subcontiguous. Rostrum arcuate, rather long, rugulosely punctate and subcarinate at the base.

Joints 1 and 2 of the funiculus equal in length. Prothorax transverse, narrowed and constricted in

front; densely, finely punctulate, and sharply arcuato-carinate. Elytra broad, conjointly rounded at the

apex ; punctate-striate, the interstices rugulose and somewhat convex. Metasternum densely squamose,

the excavation included.

Length 33, breadth 2 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sailé).

One worn specimen. The unarmed femora, broad tibie, deeply excavate meso-

sternum, shorter second joint of the funiculus, &c., separate If. spinicoris from Copturus

centralis and C. exaratus, both of which have a somewhat similar facies.

PSOMUS.

Psomus, Casey, Ann. N. York Acad. Sci. vi. p. 458 (1892) ; ix. p. 667.

This genus is based upon a single minute N.-American Zygopid, with a flattened

abdomen, with segments 2-4 subequal in length, a narrow, conical prothorax, very

convex, subtriangular elytra, and unarmed femora. The three species now added from

Central America, each represented by a single example, are perfectly congeneric with

P. politus, Casey, and I have seen other unarmed forms from South America in the

British Museum that will have to be included in the same genus.

1. Psomus caseyi, sp. n.

Subrhomboidal, very convex, shining, black, the antenne, rostrum, tibia, and tarsi rufo-testaceous; the

intraocular portion of the head, the rostrum, the prothorax with the flanks and an irregular patch on

each side at the base above, the scutellum, the elytra with several small spots placed transversely across

the disc beyond the middle and another near the apex, and the mesothoracic side-pieces, clothed with

rather coarse white scales, the rest of the upper surface with a few scattered, decumbent, brownish hairs ;

the vestiture of the femora white. Head finely punctate. Prothorax conical, closely punctate, except

along the smooth median line. Elytra very convex, much wider than the prothorax, rapidly narrowing

from about the basal third; deeply and rather coarsely punctate-striate, the interstices somewhat convex

and faintly punctulate.

Length 13, breadth % millim.

Hab. GuateMaa, Duefias (Champion),

Very like the N.-American P. politus, Casey (for an example of which we are

indebted to Mr. Wickham), but with small scattered patches of coarse white scales on

128 . RHYNCHOPHORA.

the prothorax, scutellum, and elytra, the elytral strie broader, deeper, more coarsely

punctate.

2. Psomus quadrinotatus, sp. n. (Lab. VIII. figg. 7, 7a.)

Subrhomboidal, very convex, shining, piceous, the eyes black, the rostrum, antenne, tibie, and tarsi flavo-

testaceous; the prothorax with a large triangular space on each side, extending down the flanks, the

scutellum, a large subtriangular spot beyond the middle of each elytron, and a patch on the mesosternal

side-pieces, densely clothed with coarse white scales, the rest of the vestiture of the upper surface

brownish, sparse, fine, and hair-like, that of the rostrum, legs, and under surface coarse and white.

Head finely punctate. Prothorax conical, closely punctate. Elytra finely punctate-striate, the interstices

uniseriate-punctate and almost flat.

Length 1,%,, breadth 1 millim.

Hab. Panama, Bugaba (Champion).

The large dense white spot on each side of the prothorax and on the outer part of

the disc of each elytron, the closer hair-like vestiture on the rest of the upper

surface, and the flattened uniseriate-punctate elytral interstices readily distinguish

P. quadrinotatus from P. caseyi and P. politus.

3. Psomus violaceus, sp.n. (Tab. VIII. fig. 8.)

Subrhomboidal, very convex, shining, black, the elytra violaceous, the antenne, tibia, and tarsi rufo-

testaceous ; the elytra clothed with a few scattered brownish, curled, decumbent, bristly hairs, the scutellum

with white scales, the vestiture of the under surface and legs very fine, sparse, white, and hair-like.

Head finely punctate. Prothorax conical, closely punctate, except along the smooth median line.

Elytra finely and narrowly punctate-striate, the sutural stria broader and deeper, the interstices flat

and with a few scattered minute punctures.

Length 13, breadth 1 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

Recognizable by the sparse, fine vestiture, the violaceous, finely-striate elytra, and

the flat elytral interstices.

PHILINNA, gen. nov.

Head globose; rostrum long, filiform, strongly arcuate throughout, the antenne inserted far from the base

the funiculus 6-jointed, joint 2 nearly as long as 1, the others shorter, the club stout, acuminate-ovate,

with its basal joint short, not longer than the second; eyes oval, in great part exposed, rather large,

narrowly separated; prothorax short, convex, subconical, bisinuate at the base; scutellum small; elytra

broad, rounded-subquadrate, separately rounded at the apex, leaving the vertical pygidium exposed, the

humeri prominent, but obtuse; rostral canal deep, confined to the prosternum ; anterior coxe unarmed,

narrowly separated, the prosternum with a short truncated ridge behind each of them; mesosternum

vertical, slightly swollen on each side between the middle coxe, the latter widely separated, the meso-

metasternal suture sinuate; metathoracic episterna very broad; ventral segments gradually ascending,

3 and 4 short ; legs short; femora unarmed, the posterior pair not reaching beyond the apex of the

abdomen ; tibie unguiculate at the inner apical angle in the g only, the intermediate and posterior pairs

with a fringe of short sete at the outer angle ; third tarsal joint strongly bilobed ; tarsal claws simple ;

body subovate, strongly setose, and also clothed with piliform and pectinate scales.

Philinna includes a single species of small size from Guatemala, recognizable at a

PHILINNA.—PHILIDES. 129

glance by the large tuft of erect black sete at each shoulder of the elytra*. It is

evidently related to the following genus, Philides, though very dissimilar in facies.

1. Philinna bicristata, sp. n. (Tab. VIII. figg. 9, 9 a-c.)

Ferruginous, variegated with black, the black markings on the elytra condensed into a common x -shaped

patch on the basal half of the disc and a streak at the sides towards the apex; the rostrum testaceous,

the base of the femora, tibize, and joints 1-3 of the tarsi black, the rest of the legs ferruginous ; the

elytra sparsely, the rest of the upper surface thickly, clothed with rather long, decumbent, piliform,

ochreous and white scales—which are coarser, imbricate, and almost entirely ochreous along the apical

half of the suture,—intermixed with very long, erect, scattered, black and white sete, the black sete

clustered into a large dense tuft on each shoulder, the elytra also with a few radiato-pectinate white

scales at the sides and apex; the under surface densely set with pectinate white and ochreous scales,

those on the metasternum almost wholly silvery-white; the legs with pallid piliform and pectinate

scales and scattered sete. Rostrum very slender, almost smooth, nearly reaching the apex of the

metasternum in the 9, a little shorter in the g. Prothorax densely, finely punctate, and also carinate.

Elytra deeply punctate-striate, the interstices convex and not wider than the striz. Pygidium with two

visible segments in the g, and one only in the 9. Beneath closely punctate ; ventral segment 5 very

deeply emarginate in both sexes, shallowly foveate at the apex in the ?.

Length 24-21, breadth 13-132 millim. (¢ 9.)

Hab. GuateMALa, Zapote, Pacific slope (Champion).

Two specimens only of this extraordinary Curculionid have been obtained.

PHILIDES, gen. nov.

Head globose; rostrum long, filiform, arcuate, the scrobes rapidly descending; antenne inserted at the middle

of the rostrum, the funiculus 6-jointed, the club acuminate-ovate, with its basal joint short, not longer

than the second ; eyes oval, exposed, rather large, well-separated ; prothorax convex, bisinuate at the

base, rounded at the apex, without ocular lobes; scutellum small, exposed; elytra oblong, separately

rounded at the apex, leaving the vertical bisegmented pygidium exposed ; rostral canal deep, confined to

the prosternum ; anterior coxs narrowly separated, unarmed ; mesosternum flattened, subvertical ; inter-

mediate cox moderately distant ; metathoracic episterna very broad; ventral segments 1 and 2 rather

convex, 3-5 flattened down the middle, 3 and 4 very short, the second suture bisinuate; legs very slender,

moderately long; femora unarmed, the posterior pair not extending beyond the apex of the abdomen ;

tibiee unarmed at the inner apical angle; third tarsal joint broad and bilobed; tarsal claws with a

broad blunt tooth at the base ; body oblong-ovate, hairy and also clothed in part with radiato-pectinate

scales.

The single species referred to this genus has the general facies of an Anthonomus or

Balanobius. It seems best placed in the Zygopina, near Philinna. The exposed

vertical pygidium is suggestive of the Ceuthorrhynchina. The unique type is

apparently a male, though it has the tibiz unarmed at the inner apical angle.

1. Philides anthonomoides, sp. n. (Tab. VIII. figg. 10, 10 a, 8.)

Oblong-ovate, moderately convex, shining, black, the antenne (the club excepted) and the tips of the tarsi

ferruginous; above sparsely clothed with long, fine, erect, white hairs, which become coarser and

imbricate along the elytral suture, the basal margin of the prothorax, scutellum, under surface, and

* In the British Museum there is a somewhat similar unnamed S.-American form, with two long spines

projecting from each side of the elytra, as in the genus Pteracanthus.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, December 1906. SS

130 RHYNCHOPHORA.

pygidium densely set with radiato-pectinate, white scales, the intraocular portion of the head with

narrow white scales; legs albo-pilose, the tibiz also with long projecting hairs on their outer edge.

Eyes separated by a little less than the width of the rostrum. Rostrum slender, slightly longer than

the head and prothorax, sparsely punctulate in its basal half. Joints 2-6 of the funiculus short, 2 small,

not longer than 3. Prothorax broader than long, rounded at the sides anteriorly, narrowing from behind

the middle; densely, finely, shallowly punctate. Elytra very little wider than the prothorax, subparallel

in their basal half; coarsely punctate-striate, the interstices feebly convex and sparsely punctulate.

Beneath closely punctate, the ventral segments 3 and 4 smoother in the middle, 5 very deeply emarginate

at the apex, leaving the lower segment of the pygidium exposed.

Length 23, breadth 1,4, millim. (¢?)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen, in perfect condition. A remarkable insect clothed with very long

and shorter hairs, and radiato-pectinate* and narrow scales. Similarly pectinate

scales or hairs are present in Philinna, Lemorchestes, Tachygonus, a few species of

Otidocephalus, &c.

ADDENDUMf.

The following very distinct new species of Piazurus was not seen till it was too late

to insert the insect in its proper place in the Zygopina:—

PIAZURUS (p. 9).

12 (a). Piazurus ephippiatus, sp. n. (Tab. VIII. fig. 11.)

Oblong-subrhomboidal, black, clothed with minute brown and ochreous scales, the ochreous scales condensed

into a narrow line around the eyes, a narrow, oblique, sharply-defined vitta on each side of the dise of

the prothorax, and a line around the submedian band on the elytra, the elytra with the following velvety-

black markings—a transverse, rounded patch on each side of the scutellum, a very broad, common,

saddle-shaped fascia a little beyond the middle, a spot at the sides in front of this (scarcely visible from

above), and an oval spot on the outer part of the disc near the apex; the vestiture of the under surface

very scattered, white, ochreous and brown intermixed. Head finely punctate; rostrum carinate and

punctate at the base; eyes narrowly separated ; joint 2 of the funiculus much longer than 3. Prothorax

broader than long, conical; densely, minutely punctate, and finely carinate. Elytra one-half broader

than the prothorax, elongate-triangular, rounded at the tip; coarsely scriate-punctate, the interstices

flat and minutely punctate. Beneath very sparsely, finely punctate; ventral segment 1 broadly depressed

down the middle, 5 truncate at the apex. Pygidium narrowly exposed. Femora unidentate,

Length 132, breadth 63 millim. (¢.)

fab. Panama, Chiriqui (coll. Fry, in Mus. Brit.).

One specimen, probably collected by Trétsch. Near P. melanostictus, Boh., but

with several very large velvety-black patches on the elytra.

* Casey (Ann. N. York Acad. Sci. ix. p. 681) uses the term “ multifurcate hairs” for this form of vestiture.

t Mr. Fall’s paper on the N.-American Zygopina [Trans. Am. Ent. Soc. xxxii. pp. 53-61 (1906)] was

received too late to be quoted in the preceding pages.

TACHYGONUS.. 131

Group TACHYGONINA,

This group has hitherto included two genera only—Tachygonus, Schénh., of the New

World, and Dinorhopala, Pasc., from Burma &c. Tachygonus is here divided into two,

and a third unnamed S.-American genus (with the posterior femora strongly and

abruptly clavate at the apex) is represented in the British Museum.

TACHYGONUS.

Tachygonus, Schénherr, Gen. Cure. i. p. 811 (1833) ; Lacordaire, Gen. Col. vii. p. 168; Kirsch,

Berl. ent. Zeitschr. 1875, p. 252; Leconte, Proc. Am. Phil. Soc. xv. p. 265; Casey, Ann. N.

York Acad. Sci. ix. pp. 679-681.

Tachyopus, Sturm, Cat. p. 352 (1843).

Fourteen species of this genus have been described—six from S. America, one from

Mexico, and seven from the United States, and many other unnamed Tropical-A merican

forms are to be found in collections. Tachygonus is here restricted to the species with

a 7-jointed funiculus * and an ovate antennal club (Tab. VIII. fig. 19¢). Fourteen are

now recorded from within our limits, seven of which are represented by single specimens.

The powerful hind legs of these insects, as noted long ago by Zimmermann, are used

for grasping leaves, and not for saltatorial purposes.

a. Posterior tibiz arcuate; elytra subcordate.

a’. Prothorax without dense tufts of erect blackish hairs.

a’. Elytra with a white scutellar spot.

a’. Posterior tibize very broadly dilated ; posterior femora 4-dentate. Jaticrus, sp. 0.

b°. Posterior tibie narrower, not wider than the femora.

a‘, Sete: of the upper surface coarse ; posterior femora 5-dentate. quinquedentatus, sp.n.

b*. Setee of the upper surface fine; posterior femora 4-dentate . curvicrus, sp. n.

6°. Elytra each with a narrow transverse arcuate band of pectinate

scales, extending down the middle of the disc; posterior femora

with several long and short teeth . . . . 2 ee ee .) Semirufus, Sp. D.

B. Prothorax with two dense tufts of erect blackish hairs, i in addition to

the usual sete.

c. Elytra simply setose, the pectinate scales few in number, the dorsal

striz finely punctate and separated by flat interstices ; anterior

and intermediate femora black; posterior femora 4-dentate . . migrocristatus, sp. n.

d?, Elytra setose, and each with a whitish tuft near the suture below

the base and numerous pectinate scales, the strie very coarsely

punctate throughout.

® Casey (op. cit. p. 681) states that the funiculus is 7-jointed in the N.-American forms: 7. lecontei is

figured by Sturm with a 6-jointed funiculus and by Imhoff with 5 joints only.

SS 2

152 RHYNCHOPHORA.

c’. Alternate elytral interstices raised; anterior and intermediate

femora black at the base ; posterior femora 4-dentate . . . fasciculosus, Boh.

d®, Alternate elytral interstices not raised ; anterior and intermediate

femora almost wholly reddish ; posterior femora 6-dentate. . difasciculatus, sp. n.

6. Posterior tibie sinuate; prothorax without tufts.

c', Elytra rounded-subquadrate, with a yellowish post-scutellar patch and

a broad transverse fascia of scattered pectinate white scales ; posterior

femora comparatively short, unidentate. . . . . - + 2 + + pectinisquamis, sp. 0.

ad. Elytra subcordate.

e. Elytra with two dense white post-scutellar tufts and scattered

pectinate scales ; posterior femora bidentate, black to the apex . rhombus, Casey.

f°. Elytra with, at most, two small white post-scutellar tufts and

numerous pectinate scales ; posterior femora bidentate, ferruginous

at the apex . . . . . 7/572) ) re

g°. Elytra with asmall white seutellar spot, the pectinate scales wanting

on the rest of their surface ; posterior femora with one long tooth. sinuaticrus, sp. n.

h®. Elytra without scutellar spot, the pectinate scales wanting.

e*. Elytra black ; posterior femora bidentate.

ce‘. Posterior tibial claw strongly developed ; femoral teeth sub-

contiguous ; setz of the upper surface coarse . . . flohri, sp. n.

d‘. Posterior tibial claw feebly developed ; femoral teeth distant ;

setee of the upper surface fine. . . . . . . . . « Oidentatus, sp. n.

f°’. Elytra piceous or ferruginous, clothed with fine yellowish setee ;

posterior femora with one or twoteeth . . . . . . . « flavisetis, sp. n.

1. Tachygonus laticrus, sp.n. (Tab. VIII. figg. 12, 12 a.)

Rhomboidal, moderately broad, shining, black, the tip of the rostrum ferruginous, the antenne, the anterior

and intermediate legs, and the apical joint of the posterior tarsi, testaceous; sparsely clothed with very

fine, erect, blackish sete, the sides of the prothorax and of the meso- and metasternum, and a scutellar

patch on the elytra, thickly set with pectinate white scales ; the posterior femora and tibie thickly nigro-

setose, the vestiture of the rest of the legs white. Prothorax closely, coarsely punctate, except along the

narrow smooth median space. Elytra broad, transversely cordate; seriato-foveolate, the interstices

narrow, somewhat raised, and asperate. Posterior femora very elongate, armed with four long teeth—

2 the longest, 3 and 4 placed on the upper and lower edges respectively. Posterior tibiw very broadly

arcuato- dilatate, emarginate at the apex externally.

Length 21, breadth 1% millim.

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. Recognizable from the other black forms with coarse elytral

sculpture by the very broadly arcuato-dilatate posterior tibie. The white scutellar

spot is a little smaller than in the Mexican 7. guinquedentatus.

2. Tachygonus quinquedentatus, sp.n. (Tab. VIII. figg. 13, 13 a.)

Rhomboidal, broad, shining, black, the rostrum ferruginous at the tip, the antenne and the anterior and

intermediate legs testaceous ; somewhat thickly clothed with long, rather coarse, erect, blackish sete,

TACHYGONUS. 133

with a few white sete intermixed, the sides of the prothorax, and of the meso- and metasternum, and

a rounded scutellar patch on the elytra, thickly set with pectinate whitish scales, the suture with an

imbricate row of rather coarse, decumbent, whitish sete; the posterior legs strongly setose, the sete

on the tibis and outer half of the femora black, the others white, the vestiture of the anterior and inter-

mediate legs also white. Prothorax rather sparsely punctate, except along the broad smooth median

space. Elytra broad, transversely cordate ; seriato-foveolate, the interstices very narrow, somewhat

raised, and asperate, the setee each arising from a small conical prominence. Posterior femora very

elongate, armed with three long and two shorter teeth—2 the longest, 3 and 4 a little shorter, placed

one on the lower and one on the upper edge, 1 slightly longer than 5, the latter short. Posterior tibie

rather broad, arcuate.

Length 23, breadth 23 millim.

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith).

One specimen, in perfect condition. Distinguishable by the abundant black setosity,

‘the large white scutellar spot, the imbricate row of white sete along the elytral suture,

and the 5-dentate posterior femora. ‘The seriate punctures of the elytra are large and

foveiform, as in several of the allied forms.

3. Tachygonus curvicrus, sp.n. (Tab. VIIL fig. 14, hind leg.)

Rhomboidal, shining, black, the rostrum ferruginous, the antenne, anterior and intermediate legs, and apical

joint of posterior tarsi, testaceous ; sparsely clothed with very fine, erect, fuscous sete, the pygidium with

white hairs, the flanks of the prothorax and of the meso- and metasternum, and a rather large scutellar

patch on the elytra, thickly set with pectinate whitish scales ; the posterior femora and tibiz fusco-

setose, the vestiture of the rest of the legs white. Prothorax thickly punctate, except along the narrow

smooth median space. Elytra very broad, transversely cordate, rapidly narrowed from a little before

the middle ; seriato-foveolate, the interstices very narrow and somewhat raised. Posterior femora very

elongate, armed with four teeth—1 long and slender (broken off on left femur), 2 very long and curved,

3 and 4 shorter than 1, placed on the upper and lower edges respectively. Posterior tibiw rather broad,

arcuate.

Length 21,, breadth 1? millim.

Hab. Mexico, Toxpam in Vera Cruz (Sal/é).

One rather worn specimen, damaged by the pin. Smaller than 7. quinguedentatus,

the prothorax more closely punctate, the setosity finer and sparser, the imbricate

whitish sete along the suture wanting, the posterior femora with the third and fourth

teeth placed close to the second and the outer (fifth) tooth absent.

4. Tachygonus semirufus, sp.n. (Tab. VIII. figg. 15, 15 a.)

Rhomboidal, shining, ferruginous, the head, a patch on the disc of the prothorax, a curved transverse fascia

below the base of each elytron (and in one specimen an oblong patch below it near the suture), the

under surface, the femoral spines, and the posterior tibie and tarsi in part, piceous or black; somewhat

thickly clothed with long, fine, erect, pallid sete intermixed with a few decumbent white hairs, these

latter condensed into an imbricate series along the suture; the sides of the prothorax and of the meso-

and metasternum, the shoulders, a narrow curved fascia on each elytron below the transverse black

patch, extending down the middle of the disc, and various other small scattered patches towards the sides

and apex, set with pectinate white scales; the sete on the hind legs in great part white. Prothorax

somewhat closely punctate, the smooth median line just traceable. Elytra broad, transversely cordate,

widening below the shoulders and then rapidly and obliquely narrowed to the truncated apex ; coarsely

134 RHYNCHOPHORA.

and closely punctate-striate, the interstices very narrow, the alternate ones somewhat raised. Posterior

femora very elongate, armed with numerous scattered minute and three or four longer teeth, the third

from the apex much longer than the rest. Posterior tibiz arcuate.

Length 1,%,-2, breadth 14 millim.

10°

Hab. Paxama, David, Bugaba (Champion).

Two specimens. In this insect the pectinate white scales are clustered into a narrow

arcuate band below the black fascia on each elytron, extending down the middle of the

disc to near the apex, and the posterior femora are armed with numerous long and

short teeth.

5. Tachygonus nigrocristatus, sp.n. (Tab. VIII. figg. 16, 16 a, b.)

Broad ovate, very shining, black, the apex of the rostrum and the apical margin of the elytra ferruginous,

the antenne, the anterior and intermediate tarsi, and the posterior pair at the tip, and the anterior tibiz

entirely and the intermediate pair at the base, testaceous; clothed with a few scattered long, erect,

blackish and white sete, the blackish sets on the prothorax wholly clustered into two fascicles on the

basal portion of the disc, the sides of the head and prothorax and of the moso- and metasternum thickly,

and the sutural region of the elytra very sparsely, set: with pectinate white scales; the vestiture of the

anterior and intermediate legs fine and white, the hind legs thickly set with long bristles, which are

almost wholly blackish on the femora and tibia. Prothorax closely, finely punctate, except along the

broad, smooth, median space. LElytra very broad, rounded and excavate at the sides, blunt at the tip,

depressed on the dise below the base, the humeri and subapical callosities prominent; punctate-striate, '

the punctures very coarse at the sides and fine on the disc, the interstices almost smooth, broad and flat

towards the suture, 9 distinctly costate. Posterior femora moderately elongate, armed with one long*

and three short teeth—2 curved and twice the length of the rest, 3 and 4 placed on the upper and

lower edges respectively. Posterior tibiw rather broad, arcuate externally.

Length 3, breadth 24, millim.

Hab, GUATEMALA, Quiché Mountains between 7000 and 9000 feet (Champion).

One example. A rather large, broad, comparatively smooth form, with two tufts of

blackish sete on the prothorax, strongly nigro-setose hind legs, and quadridentate

posterior femora,

6. Tachygonus fasciculosus. (Tab. VIII. fig. 17, hind leg.)

Tachygonus fasciculosus, Boh. in Schénh. Gen. Cure. v. p. 456°.

Hab. MExico, between Oaxaca and Acapulco}.

This species, the unique type of which has been communicated by Dr. Aurivillius, is

the largest of the Central-American Tachygoni (length 8, breadth 22 millim.). It

may be known by the very coarsely punctate-striate elytra, with raised alternate

interstices, long, abundant setosity, and scattered pectinate scales, which are condensed

into a tuft on each side of the suture below the base, the bifasciculate prothorax,

the strongly quadridentate posterior femora, and the arcuate posterior tibia.

* Broken off on the right femur.

TACHYGONUS. 135

7. Tachygonus bifasciculatus, sp. n. (Tab. VIII. figg. 18, 18a, 4, 2.)

2? Rhomboidal, shining, black, the rostrum, antenne, anterior and intermediate legs, tip of the hind tarsi,

apical margin of the elytra, and suture (faintly), testaceous or ferruginous; somewhat thickly clothed

with very long, erect, fuscous and pallid setz, the fuscous sete on the prothorax clustered into two dense

fascicles near the base ; the sides of the head and prothorax, and of the meso- and metasternum, two

broad, coalescent, transverse fasci@ on the elytra, extending along the suture to the base and apex, and

the ventral segments in part, set with ochreous and whitish pectinate scales, the whitish scales clustered

into a tuft on the second elytral interstice below the base and another on the fifth beyond the middle;

the legs with white and fuscous sete and pectinate white scales. Rostrum bare, smooth along the middle.

Prothorax closely, finely punctate, except along the broad, smooth, basally dilated median space. Elytra

very broad, transversely cordate; coarsely and closely punctate-striate, the interstices narrow and rather

convex. Posterior femora very elongate, armed with three pairs of spines, the first pair very long.

Posterior tibie broad, strongly arcuate, subangulate externally at about one-third from the base.

do? The head, the sides of the prothorax broadly, the suture, apical margin, humeri, and a common transverse

fascia before the middle of the elytra, the posterior femora at the apex and towards tho base, and the

base of the posterior tibiee, ferruginous. The rostrum with the basal half albo-squamose.

Length 2;,-22, breadth 13-2 millim.

Hab. Guatemata, Capetillo (Champion).

Two specimens, apparently belonging to the same species, and differing only in

colour, the male somewhat abraded. The two dense fascicles of erect blackish setz on

the prothorax, the closely punctate-striate elytra, set with many pectinate scales (which

are clustered into two tufts on each elytron), and the peculiar armature of the hind

femora, readily distinguish 7. bifasciculatus.

Its nearest allies are the N.-American 7. lecontei, Gyll., and 7. spinipes, Casey, and

the Mexican 7. fasciculosus, Boh.

8. Tachygonus pectinisquamis, sp.n, (Tab. VIII. figg. 19, 19 a-c.)

Short ovate, shining, black, the antennze and the tips of the tarsi testaceous ; somewhat thickly clothed with

long, fine, erect, blackish sete, with white sete intermixed, those along the apical portion of the suture

imbricate ; the prothorax with a spot near each hind angle and the flanks, the elytra with a broad space

across the middle sparsely, and the sides of the meso- and metasternum more densely, set with pectinate

white scales (fig. 19 a), the elytra also with a narrow dense patch of pale ochreous pectinate scales on

the suture below the base; the anterior and intermediate legs albo-pilose and fusco-setose, the posterior

legs densely fusco-sctose, the basal half of their femora with white sete and pectinate white scales.

Prothorax sparsely, finely punctate, except along the smooth median space. LElytra rounded-subquadrate,

about as broad as long, gradually, arcuately narrowing from the middle ; with rows of closely-placed sub-

quadrate punctures separated by narrow, smooth, rather convex interstices. Legs comparatively stout ;

posterior femora extending a little beyond the apex of the abdomen, armed with a single prominent

slender tooth ; posterior tibice sinuate; posterior tarsi broad.

Length 2,45, breadth 13 millim.

Hab. Mexico, Jalapa (Hége).

One specimen. ‘This species may be readily identified by the rounded-subquadrate

elytra, with scattered pectinate white scales extending across the median third and a.

large ochraceous post-scutellar patch, the comparatively short, very hairy hind legs, the

posterior femora armed with a single tooth, the posterior tibie sinuate.

136 RHYNCHOPHORA.

9. Tachygonus rhombus. (Tab. VIII. fig. 20.)

Tachygonus rhombus, Casey, Ann. N. York Acad. Sci. ix. pp. 678, 681 (1897) ’.

Hab. Norta America, Arizona !.—Mexico, Northern Sonora (Morrison).

Sent us in numbers by Morrison as from Sonora. A small strongly setose form, set

with numerous ochreous and white pectinate scales, the white scales clustered into a

dense transverse patch on the suture of the elytra below the base and a spot at each

hind angle of the prothorax, the vestiture of the under surface dense and white ; the

posterior femora ferruginous to beyond the middle and armed with one or two sharp

teeth; the posterior tibie sinuate.

10. Tachygonus caseyi, sp. n. (Tab. VIII. figg. 21, 21a, 8.)

Rhomboidal, shining, black, the antenne and legs (the swollen portion of the posterior femora and the apical

half of the posterior tibie excepted) rufo-testaceous ; somewhat thickly clothed with long, erect, blackish

and white sete, the upper surface also abundantly set with ochreous and white (or entirely white) pectinate

scales (fig. 21 a), which on the prothorax are condensed into a small spot near each hind angle, the elytra

sometimes with a small white tuft near the suture; the under surface densely clothed with pectinate

white scales, the posterior legs with numerous long, blackish and white sete, the other legs albo-pilose,

with a few dark sets at the knees. Prothorax very finely punctate, with indications of a smooth median

line. Elytra broad, transversely cordate ; closely punctate-striate, the interstices narrow and asperate.

Posterior femora moderately elongate, subclavate, armed with one or two sharp spines. Posterior tibie

strongly sinuate.

Length 13-2, breadth 12-13 millim.

Hab. Mexico, Teapa (H. H. Smith); Guatemaua, Zapote, San Geronimo, Tamahu

(Champion).

Five specimens. Very near 7. rhombus, but with the white post-scutellar tufts small

or obsolete, the posterior knees rufo-testaceous, like the basal portion of the femur.

The hind legs are similarly formed in the two species.

11. Tachygonus sinuaticrus, sp. n. (Tab. VIII. figg. 22, 22 a.)

Rhomboidal, shining, black, the rostrum ferruginous, the antenne, anterior and intermediate legs, and joints

3 and 4 of the posterior tarsi, testaceous ; somewhat thickly clothed with long, erect, black sete, the

pygidium with white hairs, the flanks of the prothorax and of the meso- and metasternum sparsely, and

a small scutellar patch on the elytra (formed by two oblique tufts) densely, set with pectinate white

scales; the posterior femora and tibie strongly nigro-setose, the vestiture of the rest of the legs white,

the anterior and intermediate knees each with two dark sete. Prothorax very sparsely, rather coarsely

punctate, except along the smooth narrow median space. Elytra broad, transversely cordate ; seriato-

foveolate, the interstices very narrow, somewhat raised, and asperate. Posterior femora moderately

elongate, armed with one leng and several short teeth. Posterior tibia broad, sinuate.

Length 23, breadth 14 millim.

Hiab. Mexico, Atoyac in Vera Cruz (HZ. H. Smith).

One specimen. Very like TZ. laticrus, but with the prothorax more finely and

sparsely punctate, the posterior femora Jess elongate and armed with one long spine

only, the posterior tibiae sinuous and much less dilated, and the scutellar patch smaller,

formed by two small oblique dense tufts of white scales.

TACHYGONUS. 137

12. Tachygonus flohri, sp. n. (Tab. VIII. figg. 23, 23 a.)

Tachygonus flohri, Sharp, in litt.

Rhomboidal, shining, black, the antenne, the anterior and intermediate legs, the posterior femora in part (the

extreme base and a space beyond the middle are black), the base of the posterior tibie, and the last two

joints of the posterior tarsi, ferruginous ; somewhat thickly clothed with long, erect, stiff, blackish sete

intermixed with a few whitish hairs, the flanks of the prothorax and of the meso- and metasternum, and

the scutellum, set with pectinate white scales; the posterior legs, and the anterior and intermediate

knees, strongly nigro-setose, the sete of the hind femora becoming whitish towards the base. Rostrum

almost smooth, punctured along the sides. Prothorax thickly punctate, except along the smooth narrow

median space. LElytra broad, transversely cordate; seriato-foveolate, the interstices narrow, asperate,

and somewhat raised. Posterior femora moderately elongate, armed with two subcontiguous teeth—the

inner one long, the outer one shorter and sometimes inconspicuous. Posterior tibiz sinuate, the claw

at the outer apical] angle large.

Length 14, breadth 12 millim.

Hab. Mexico, Juquila in Oaxaca (fohr).

Four specimens. A small strongly setose form, with seriato-foveolate elytra,

bidentate, nigro-annulate posterior femora, and greatly developed claw at the outer

apical angle of the posterior tibie.

13. Tachygonus bidentatus, sp.n. (Tab. VIII. fig. 24, hind leg.)

Rhomboidal, shining, black, the antenne, tip of the rostrum, anterior and intermediate legs, basal half of hind

femora, and apical joint of hind tarsi, ferruginous; somewhat thickly clothed with long, fine, erect,

fuscous sete, the flanks of the prothorax and of the meso- and metasternum with pectinate white scales ;

the posterior femora and tibie and anterior and intermediate knees fusco-setose. Prothorax rather

coarsely punctate, except along the narrow smooth median space. LElytra broad, transversely cordate ;

seriato-foveolate, the interstices narrow and somewhat raised. Posterior femora moderately elongate,

armed with two slender, distantly-placed teeth. Posterior tibiz# feebly sinuate, the claw at the outer

apical angle small.

Length 14, breadth 13 millim.

Hab. Guatema.a, San Juan in Vera Paz (Champion).

One specimen. Near the Mexican 7. flohri, but with the setee much finer and

shorter, the hind femora and tibie not so stout and blacker (the basal half of the

femur alone rufous), the femora with two slender distantly-placed teeth, the tibial claw

small. There is no scutellar spot in either of these insects.

14. Tachygonus flavisetis, sp.n. (Tab. VIII. figg. 25, 25 a.)

Rhomboidal, shining, black, the elytra piceous or ferruginous, the rostrum, antenne, and legs (a small patch

on the posterior femora, including the larger spine, and the outer half of the posterior tibiw, excepted),

rufo-testaceous; somewhat thickly clothed with long, fine, erect, ochreous sete, the flanks of the

prothorax and of the meso- and metasternum set with pectinate white scales; the posterior femora and

tibice with ochreous and blackish sete. Prothorax sparsely punctate, except along the smooth, narrow,

median space. LElytra transversely cordate; seriato-foveolate, the interstices very narrow, smooth, and

somewhat convex. Posterior femora moderately elongate, subclavate, armed with one long black spine,

and sometimes with a pallid spine adjacent to it. Posterior tibie sinuate.

Length 14, breadth 17-1} millim.

Hab. Panama, David, San Lorenzo (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1907. TT

138 RHYNCHOPHORA.

Two specimens. Near the Guatemalan 7. didentatus, but with the elytra piceous

or ferruginous and more rapidly narrowed posteriorly, the posterior legs in great part

ferruginous, their femora armed with one or two teeth.

TACHYGONIDILUS, gen. nov.

Antenne with a 6-jointed funiculus and a very stout oblong-ovate club; posterior tibie elongate-triangular ;

posterior tarsi enveloped in a dense brush of long hairs.

Type, Tachygonus phalangium, Chevr.

Two closely allied species are referred to this genus, which is readily distinguishable

from Tachygonus by the characters given. Both insects are of comparatively large

size. The type of 7. phalangium has been communicated by Dr. Aurivillius for

comparison, and we give a figure of its posterior femur and antenna (Tab. VIII.

fige. 26, 26 a).

1. Tachygonidius dasypus, sp. n. (Tab. VIII. figg. 27, 27 a.)

Subrhomboidal, broad, shining, black, the antennex, and the anterior and intermediate legs in part, ferruginous,

the hind legs piceous, with the femoral spines rufous and the tibie castaneous ; sparsely clothed with

long, erect, black setee and fulvous and white hairs and pectinate scales, the scales more closely placed

on each side of the base of the prothorax, at the base and apex of the elytra, and along the apical two-

thirds of the suture ; the under surface clothed in part with fulvous and white pectinate scales ; anterior

and intermediate legs setose and squamose ; posterior legs densely clothed with long hairs and scattered

sete, the hairs on the outer face of the femora mostly ochreous and those on the inner edge of the tibie

black, the tarsal joints almost hidden in a dense brush of very long pale ochreous hairs. Head closely

punctate; rostrum very stout, thickly punctate, except along the triangular, shining, median space.

Prothorax coarsely, irregularly punctate, except along the smooth narrow median space. Elytra very

broad, rounded-triangular, transversely depressed on the disc at the base, each with a large tuberculiform

prominence near the suture towards the apex and a smaller prominence on the outer margin a little

anterior to it, the humeri also swollen ; coarsely, irregularly seriato-foveolate, the foveee here and there

transversely confluent, the alternate interstices somewhat raised anteriorly, 9 subcostate. Posterior

femora very elongate, with three long, equidistant teeth, and a small tooth exterior to them. Posterior

tibie broad, triangular, densely ciliate within. Third tarsal joint broadly bilobed.

Length 5, breadth 35%; millim.

Hab. Panama, Tolé (Champion).

One specimen. A near ally of 7. phalangium, Chevr., from Cayenne, with three

long, equidistant teeth on the posterior femora, the femora themselves densely clothed

with ochreous hairs externally, the posterior tibia more dilated, and the posterior tarsi

enveloped with a denser brush of ochreous hairs.

Group CEUTHORRHYNCHINA.

The North-American members of this group have been exhaustively monographed

by Dietz [Trans. Am. Ent. Soc. xxiii. pp. 387-480, tabb. 12-14 (Sept.—Dec. 1896)],

and his arrangement is here followed. ‘The Central- and South-American forms mostly

belong to the section “Ccliodes.” The ‘“Ceuthorrhynchi” and “ Phytobii” are

HYPOCCLIODES. 139

each represented by a few species, which are closely related to, or identical with,

north temperate forms.

Hypoceliodes is the most characteristic genus of the group in Tropical America,

though very few species have hitherto been described.

Sect. Ca:LIoDEs.

Celiodes, Dietz.

HYPOCCELIODES.

Hypoceliodes, Faust, Stett. ent. Zeit. 1896, nos. 1-6, p. 100. ql

Orchestomerus, Dietz, Trans. Am. Ent. Soc. xxiil. pp. 390, 412 (Sept. 1906).

( wn od a)

A comparison of Faust’s typical species, 1. coronatus, from Venezuela, with that

of one of the N.-American Orchestomeri, O. wickhami, Dietz, shows that they are

congeneric *, Faust’s name having a few months’ priority. The species are numerous

in Central and South America, and are chiefly recognizable by the deeply sulcate,

unarmed or obsoletely dentate femora, the incrassate posterior femora, the short

second ventral segment, which is acutely prolonged on each side behind, the excavate

meso- and metasternum, the 7-jointed funiculus, and the strongly toothed tarsal claws.

The tibie, as-in Auteutes, are sometimes subangnlate on the outer edge near the base.

Fresh specimens are often more or less coated with a waxy fulvous secretion, as in

Tixus. The thickened posterior femora are perhaps used for saltatorial purposes fF.

a. Intermediate tibize rounded at the base externally; lateral tubercles of

the prothorax prominent; metasternum excavate to the middle or apex

(feebly so in O. pollinosus and O. dietzt).

a’. Elytra uneven, with rows of coarse, deep, oblong punctures; prothorax

strongly binodose on the disc, anterior and intermediate femora obso-

letely dentate . . . . . Loe ee . ee + +) 6tnegqualis, sp. 0.

6. Elytra with or without shallow depressions, punctate- _striate, the alter-

nate interstices more or less convex.

a?. Prothorax feebly binodose on the disc ; intermediate femora sometimes

obsoletely dentate.

a’. Anterior and intermediate tibi unguiculatein gf . . . . . . granulatus, sp. n.

6°. All the tibie unguiculateing . . .. . unguiculatus, sp. 0.

6. Prothorax sharply, obliquely bicarinate on the dise ; elytra finely

punctate-striate ; femora unarmed.

c. Sutural region of the elytra without brownish scales ; lateral tubercles

of the prothorax moderately prominent; tibize and tarsi stouter: size

larger. ©. we eee ee ee ee ee ee + Otcarinatus, sp. n.

* The S.-African genus Eyrius, Pasc., is very closely related to these insects.

+ The European Rhinoncus perpendicularis, Reich., can jump a considerable distance, though the hind

femora are not much thickened.

TT 2

/ pulveveu s

er ‘

ONC

140 RHYNCHOPHORA.

d'. Sutural region of the elytra with brownish scales; lateral tubercles of

the prothorax more prominent; tibie and tarsi more slender: size

aa small . . . . .. Loe ee . . . . gibbicollis, sp. n.

. Prothorax bituberculate on the disc, the dorsal and lateral tubercles

equal in size.

. Rostrum longer, stout in @,slenderin¢. . . . . . . «+ . pulvereus, sp. n-

?. Rostrum a little shorter, stout in both sexes. . . . . . . detzi, sp. n.

a’. Prothorax with an interrupted v-shaped ridge on the disc . . . . obliquus, sp. 0.

b. Intermediate tibiz angularly or subangularly dilated near the base exter-

nally ; prothorax with two short, sharp, subparallel carine (or four

tubercles) on the disc, the lateral tubercles also prominent ; metasternum

excavate to about the middle.

e'. Alternate elytral interstices undulato-costate; femora obsoletely

dentate: sizelarger . . 2. 2. 1. 2 we ee . oe . « « « eCoronatus, Faust.

jf’. Alternate elytral interstices convex ; femora unarmed : size smaller . phytobioides, sp. n.

c. Anterior and intermediate tibize angularly dilated near the base externally ;

rostrum (2) very elongate; elytra coarsely punctate-striate, the alternate

interstices much raised; metasternum excavate to the apex . . . . Chiriquensis, sp. n.

d. Anterior and intermediate tibie angularly dilated, and the posterior tibiz

slightly widened, near the base externally; rostrum (2) long; prothorax

feebly binodose on the disc, the lateral tubercles small; elytra deeply

punctate-striate, the alternate interstices more or less raised; meta-

sternum excavate to the apex. . . . .... . . angulatus, sp. n.

1. Hypoceliodes inzqualis, sp.n. (Tab. VIII. figg. 28, 28 a, ¢.)

Short ovate, broad, robust, black, alutaceous ; the under surface and legs sparsely clothed with small, cinereous,

hair-like scales, the upper surface almost bare. Head densely, rugosely punctate, carinate on the vertex

and depressed between the eyes; rostrum very stout, arcuate, as long as the prothorax, rugosely punctate,

not carinate. Prothorax rapidly narrowing from the base, abruptly constricted in front ; the disc gibbous

and canaliculate, the dorsal elevations separated from the prominent lateral tubercles by an oblique sulcus ;

the anterior margin somewhat produced and notched in the middle; the surface shallowly, confluently

punctate. Elytra very broad, rounded at the sides, depressed at the base, below the shoulders, and on

the dise beyond the middle ; with interrupted rows of coarse, deep, oblong punctures placed in shallow

strie, the interstices here and there transversely confluent, alutaceous, and minutely granulate. Meta-

sternum declivous, the excavation reaching to the apex. Ventral segment 5 foveate in the middle in the ¢.

Anterior and intermediate femora with a minute tooth. Intermediate tibis rounded at the base externally,

unguiculate at the inner apical angle in the ¢, unarmed in the 9.

Length 4-43, breadth 34-32 millim. (d 2.)

Hab. Panama, Bugaba (Champion).

Three specimens. This insect has the facies and sculpture of a Chlamys, except

that the shape is different. ‘The very uneven, seriato-foveolate elytra separate it from

all others of the genus.

2. Hypoceliodes granulatus, sp. n.

Short ovate, broad, robust, black, alutaceous; the under surface and legs sparsely clothed with narrow

cinereous or whitish scales, the upper surface almost bare, but often coated with a fulyous waxy secretion.

HYPOCCLIODES. 141

Head densely, rugosely punctate, carinate on the vertex, depressed between the eyes, with distinct super-

ciliary ridges; rostrum very stout, arcuate, as long as the prothorax, rugosely punctate and feebly

unicarinate. Prothorax rapidly narrowing from near the base, abruptly constricted in front, canaliculate

and gibbous on the disc, with sharp lateral tubercles, the anterior margin slightly emarginate in the

middle; the surface densely, shallowly, rugosely punctate. Elytra very broad, rounded at the sides,

depressed at the base, below the shoulders, and on the dise beyond the middle; punctate-striate, the

interstices alutaceous and finely granulate, the alternate ones convex, the others slightly raised. Meta-

sternal excavation deep, reaching to near the apex. Fifth ventral segment foveate in the middle behind,

the fovea almost hidden by long coarse white scales. Intermediate femora with indications of a minute

tooth. Anterior and intermediate tibie unguiculate at the inner apical angle in the ¢, the intermediate

pair only with a distinct claw in the ?.

Length 43-44, breadth 31-34 millim. (¢ 2.)

Hab. Mexico, Acapulco (Hége), Toxpam (Sallé).

Six specimens, all but one from Acapulco. This is one of the largest of the

Central-American species, and recognizable by the distinctly granulate, punctate-

striate, uneven elytra, and the non-tuberculate disc of the prothorax. The elytra

are almost bare when the waxy secretion is removed.

3. Hypoceeliodes unguiculatus, sp. n.

Short ovate, broad, robust, black, alutaceous; the under surface and legs sparsely clothed with small, narrow,

cinereous scales, the vestiture of the upper surface very fine and in part hidden by a mealy secretion.

Head densely, rugosely punctate, carinate on the vertex and depressed between the eyes; rostrum stout,

arcuate, as long as the prothorax, rugosely punctate. Prothorax canaliculate down the middle, and with

prominent ‘lateral tubercles; densely, shallowly punctate. Elytra broad, rounded at the sides, slightly

depressed at the base; punctate-striate, the interstices alutaceous and minutely granulate, the alternate

ones convex. Metasternal excavation reaching to beyond the middle. Ventral segment 5 foveate in the

middle in the g, the vestiture not coarser around the fovea. Legs very short; all the tibie sharply

unguiculate at the inner apical angle in the d.

Length 3, breadth 24 millim. (<¢.)

Hab. Mexico, Jalapa (Hoge).

Two specimens. Smaller than H. granulatus, the elytra with shallower depressions,

the legs shorter, with all the tibiz unguiculate in the male, the fovea on the fifth

ventral segment unaccompanied by coarser scales, the metasternal excavation shorter.

4. Hypoceeliodes bicarinatus, sp. n. (Tab. VIII. figg. 29, 29a, 2.)

Short ovate, alutaceous, black, the tarsi, antenne, and apical margin of the elytra ferruginous ; sparsely clothed

with minute, hair-like, cinereous scales, which are clustered into various faint, irregular, interrupted,

undulate fascize on the elytra. Head densely, rugulosely punctate, feebly carinate on the vertex, flattened

between the eyes; rostrum stout, arcuate, longer than the prothorax, rugulosely punctate, not carinate.

Prothorax rapidly narrowed from the base, feebly constricted in front, the anterior margin notched in the

middle; the disc gibbous, canaliculate, and with two sharp oblique carine ; the lateral tnbercles well-

developed ; the surface finely punctate. Llytra broad, finely punctate-striate, the interstices alutaceous,

the alternate ones more or less raised, the others flat. Metasternal excavation reaching to near the apex.

Tibize unarmed at the inner apical angle *,

Length 2,%,, breadth 2 millim. (@.)

Hab. British Honpuras, Rio Sarstoon (Blancaneauz).

* The spur to the intermediate pair shown by our artist does not exist, though doubtless present in the ¢.

142 RHYNCHOPHORA.

One specimen. Very like the smaller examples of H. coronatus, but with the short

sharp dorsal carine of the prothorax oblique (not parallel), the prothorax itself less

constricted in front, the elytra more finely punctate-striate, the femora without trace

of tooth, the intermediate tibiz not subangularly dilated near the base.

5. Hypoceeliodes gibbicollis, sp.n. (Tab. VIII. figg. 30, 304, ¢ .)

Short, broad, subrhomboidal, black, the antenne, anterior margin of the prothorax, apical margin of the elytra,

knees, tibie, and tarsi rufo-testaceous; variegated above with small cinereous and pale brown scales, the

latter mostly crowded into a broad irregular space along the suture, the cinerous scales on the elytra con-

densed into interrupted undulate fascie, the mesothoracic epimera with an ochreous patch. Head rugulosely

punctate, depressed between the eyes; rostrum arcuate, moderately stout, not longer than the prothorax,

rugulosely punctate. Prothorax rapidly narrowing forwards, the anterior portion narrow and tubulate ;

finely punctate, the dise gibbous, canaliculate, and with two short, very prominent, oblique caring, the

lateral tubercles acute. Elytra broad, rounded-triangular ; finely punctate-striate, the interstices rugulose,

the alternate ones raised. Metasternal excavation deep, reaching to a little beyond the middle coxe.

Fifth ventral segment of the ¢ excavate at the sides and transversely depressed in the middle, appearing

binodose when viewed from behind, Legs short; posterior femora moderately incrassate ; tibie rather

slender, the intermediate pair unguiculate at the inner apical angle in the ¢.

Length 13, breadth 14 millim. (d @.)

Hab. Mexico, Teapa (H. H. Smith).

One pair. Smaller than HZ. phytodioides, with still more prominent dorsal elevations

on the prothorax and acute lateral tubercles, the brownish scales on the elytra mostly

condensed along the suture, the legs more slender. The humeri are more prominent

than in H. wickhamt, and the prothoracic elevations very conspicuous.

6. Hypoceliodes pulvereus, sp.n. (Tab. VIII. figg. 31, 31a, ¢.)

Short ovate, piceous or rufo-piceous, the antenne ferruginous; mottled with minute whitish and brown scales,

which are in part hidden by a fulvous waxy secretion, the vestiture coarser beneath. Head rugulosely

punctate, finely carinate on the vertex, flattened between the eyes, which are separated by the width of

the rostrum; rostrum long, arcuate, reaching the apex of the metasternum, in the ¢ stout, rugosely

punctate and sharply carinate to near the tip, with the apex only smooth, in the Q much more slender,

and shining and almost smooth throughout. Prothorax finely punctate, the lateral tubercles well-

developed, the disc with two similar tubercles, separated by the shallow median sulcus, Llytra short,

rounded at the sides; rather coarsely punctate-striate, the interstices rugulose, the alternate ones

strongly, the others feebly, convex. Meso- and metasternal excavations broad and shallow. Ventral

segments 1 and 2 flattened, and 3-5 hollowed, down the middle, and 2 and 5 slightly binodose at the

apex, in the ¢. Legs short and stout; posterior femora strongly incrassate, the anterior and inter-

mediate pairs obsoletely dentate ; intermediate and posterior tibie unguiculate at the inner apical angle

in the ¢.

Length 2-23, breadth 13-12 millim. (¢ @.)

Hab. Panama, Bugaba, Volcan de Chiriqui, Tolé (Champion).

Nine specimens. The almost smooth and comparatively slender rostrum of the

female, the sulcate ventral segments 3-5 of the male, and the rather sparse mottled

vestiture of the upper surface distinguish JZ. pulvereus.

HYPOCCELIODES. 143

7. Hypoceeliodes dietzi, sp. n.

Very like H. pulvereus, but differing as follows :—The vestiture of the upper surface denser; the rostrum a

little shorter, not reaching the apex of the metasternum, stout in both sexes, rugosely punctate and

sharply carinate to the tip in the g, with about the apical third smoother and shining in the 9 ; the

metasternum flattened or slightly hollowed down the centre; the ventral segments 1-4 flattened along

the middle, and 5 with a shallow transverse depression, in the 3.

Length 23-21, breadth 13-12 millim. (¢ 2.)

Hab. Guatemata, Chacoj in Vera Paz (Champion); Panama, Bugaba, Caldera, Tolé,

San Miguel in the Pearl Is. (Champion).

Thirteen specimens. Though so like H. pulvereus, this species can be readily

separated therefrom by the sexual characters, the female having a much stouter and

more rugose rostrum, and the male wanting the longitudinal ventral groove. The

prothorax is quadrituberculate, and the intermediate and posterior tibiz of the male

are unguiculate, in the two species.

8. Hypoceliodes obliquus, sp. n.

Short ovate, dull, black, the antenne ferruginous; clothed with scattered, minute, cinereous scales, which are

clustered into several small spots on the elytra. Head rugulosely punctate, finely carinate on the vertex,

flattened between the eyes; rostrum stout, arcuate, reaching the apex of the metasternum, rugulosely

punctate and feebly carinate, becoming much smoother towards the tip. Prothorax narrowing from near

the base, feebly constricted in front; densely, finely punctate, the dise with two strongly divergent,

feeble, cariniform elevations, separated by a shallow median groove, the lateral tubercles small. Elytra

moderately bread, short, rounded at the sides, the humeri not prominent; rather coarsely punctate-

striate, the interstices rugulose, the alternate ones raised. Metasternal excavation broad. Legs

comparatively stout. |

Length 2, breadth 14 millim. (@.)

Hab. Panama, Bugaba (Champion).

One specimen. Narrower and more ovate than H. wickhami (Dietz) (for an example

of which we are indebted to Mr. H. F. Wickham), the vestiture very sparse, the dorsal

prominences of the prothorax strongly divergent (together forming an interrupted

v-shaped ridge), the elytra more coarsely punctate-striate. The dorsal elevations on

the prothorax are more oblique than in any of the other Central-American members of

the genus.

9. Hypoceliodes coronatus, (Tab. VIII. figg. 32, 324, 0, .)

Hypoceliodes coronatus, Faust, Stett. ent. Zeit. 1896, p. 101°.

Short ovate, broad, alutaceous, nigro-piceous or black, the antenne (the club excepted), tarsi, and sometimes

the apical margin of the prothorax also, ferruginous ; sparsely clothed with cinereous and brownish,

minute, hair-like scales, the elytra often with a fuscous streak at the base of the suture, the vestiture of

the under surface and legs coarser. Head densely, rugulosely punctate, carinate on the vertex, depressed

between the eyes, with distinct superciliary ridges ; rostrum very stout, arcuate, as long as the prothorax,

rugulosely punctate and tricarinate. Prothorax rapidly narrowing from near the base, abruptly con-

stricted in front; the disc gibbous, canaliculate, and with two short prominent parallel ridges, which

are sometimes each divided into two tubercles, the lateral tubercles acute; the anterior margin notched

144 RHYNCHOPHORA.

in the middle and somewhat produced over the head; the surface finely punctate. Llytra very broad,

rounded at the sides, depressed at the base, below the shoulders, and on the disc beyond the middle ;

punctate-striate, the alternate interstices here and there nodose or raised, and also granulate, the others

sometimes with a row of minute granules. Metasternum strongly declivous anteriorly, the excavation

canaliculate and reaching to a little beyond the middle coxe. Ventral segments 2 and 5 foveate in the

centre inthe ¢. Femora with a minute tooth. Intermediate tibie subangularly dilated on the outer

edge below the base, unguiculate at the inner apical angle in the ¢.

Length 22-33, breadth 2-3 millim. (¢ @.)

Hab. Mexico, Ventanas in Durango (Hége), Toxpam (Sallé), Cuernavaca, Teapa

(1. H. Smith); Guatemata, Panzos (Champion); Panama, Bugaba (Champion).—

VENEZUELA, Caracas}.

Nine specimens, varying greatly in size, and in the development of the carine on

the prothorax (which are often each divided into two tubercles) and the prominences

on the elytra.

The type of H. coronatus, Faust (kindly communicated by Dr. Heller), has the

prothorax and elytral elevations much less prominent than in the Mexican examples ;

the one from Panama, however, is almost intermediate.

10. Hypoceeliodes phytobioides, sp.n. (Tab. VIII. figg. 33, 33a, 2.)

Short ovate, nigro-piceous or piceous, the antenne, anterior margin of the prothorax, apical margin of the

elytra, knees, tibia, and tarsi ferruginous; mottled above with minute brown and whitish scales, the

flanks of the prothorax irregularly albo-bilineate, the mesothoracic epimera with an ochreous patch,

the vestiture of the under surface sparse and in great part whitish. Head rugulosely punctate, finely

carinate on the vertex, depressed between the rather prominent eyes; rostrum not very stout, arcuate,

as long as the prothorax, rugulosely punctate, the apical half in the 2 much smoother and shining.

Prothorax rapidly narrowing forwards, the apical portion narrow and tubulate ; closely, finely punctate,

the disc gibbous, canaliculate, and with two short, prominent carine, the lateral tubercles very pro-

minent, compressed, cariniform, parallel. Elytra broad, depressed along the suture at the base, the

humeri swollen ; finely punctate-striate, the interstices rugulose, the alternate ones raised. Metasternal

excavation deep, extending beyond the middle coxe. Intermediate tibiw subangularly dilated externally

near the base, unguiculate at the inner apical angle in the ¢.

Length 13-2, breadth 14-12 millim. (¢ Q.)

flab. Mexico, Chilpancingo (H. H. Smith: 2); Guatemana, Aceituno (Cham-

pion: 2); Nicaragua, Managua (Solari: ¢ ¢).

Fight specimens, varying in size and colour. Near the N.-American H. wickhami,

but with larger tubercles on the prothorax and more prominent humeri. The insect

has much the facies of a Phytodius.

11. Hypoceeliodes chiriquensis, sp. n. (Tab. IX. figg. 1, 1a, 2.)

Short ovate, nigro-piceous, the antenna, tip of the rostrum, anterior margin of the prothorax, apical margin

of the elytra, knees, tibie, and tarsi more or less ferruginous ; clothed with scattered, minute, hair-like,

whitish and fulvous scales, which become more crowded on the sides of the prothorax. Head rugulosely

punctate, the eyes rather prominent; rostrum strongly arcuate, moderately stout, reaching the apex of

the metasternum, sparsely, very minutely punctate. Prothorax rapidly narrowing from the base, rather

coarsely punctate; the disc gibbous, canaliculate, and binodose, the lateral tubercles moderately

prominent, the anterior margin notched in the middle. Elytra short and broad, transversely depressed

HYPOCGLIODES.—AULEUTES. 145

at the base; coarsely punctate-striate, the interstices rugulose, the alternate ones raised. Metasternal

excavation reaching to the apex. Legs short; posterior femora moderately incrassate; anterior and

intermediate tibie angularly dilated near the base externally.

Length 23-22, breadth 14-15%, millim. (@.)

Hab, Muxico (Hoge, in coll. Solari); Panama, Caldera in Chiriqui (Champion).

Two specimens, the one from Chiriqui being taken as the type. ‘The very

long, comparatively smooth rostrum, the coarsely punctate-striate elytra, the form

of the anterior and intermediate tibie, and the quadrinodose prothorax separate

H. chiriquensis from its immediate allies.

12. Hypoceliodes angulatus, sp. n.

Short ovate, moderately shining, piceous, the antenne and tarsi ferruginous; clothed with scattered, minute,

whitish scales, which are seriately arranged on the elytra and in part hidden by a fulvous mealy

secretion. Head rugulosely punctate, feebly carinate on the vertex, without trace of superciliary ridges ;

rostrum arcuate, stout, reaching the apex of the metasternum, shining, sparsely, rather coarsely punctate,

rugose at the base, smooth along the middle. Prothorax rapidly narrowing from the base, constricted in

front; densely rugosely punctate, canaliculate and feebly binodose on the disc, the dorsal elevations

separated from the small lateral tubercles by an oblique groove. Elytra deeply punctate-striate, the

interstices somewhat asperate and all more or less raised, the alternate ones more prominent than the

others. Metasternal excavation deep. Legs short and rather stout; anterior and intermediate tibie

angularly dilated, and the posterior tibie slightly widened, near the base.

Length 23, breadth 14 millim. (9.)

Hab, Panama, Bugaba (Champion).

One specimen. The angularly dilated tibia, long stout rostrum, feebly quadrinodose

prothorax, and deeply punctate-striate elytra, with raised interstices, sufficiently distin-

guish //. angulatus. The rostrum is stouter and much more distinctly punctate than

in the same sex of ZT. chiriquensis, and the alternate elytral interstices are less raised.

AULEUTES.

Auleutes, Dietz, Trans. Am. Ent. Soc. xxiii. pp. 390, 402 (1896).

The various species referred to this genus, which includes ten N.-American forms

and the holarctice A. epilobit (Payk.), are closely related to Hypoccliodes (Orchesto-

merus), but have relatively less thickened posterior femora. The second ventral

segment is short and acutely produced on each side posteriorly; the funiculus is

7-jointed*; the rostral canal extends to the meso- or metasternum, and in some

species is very deep and closed-in behind; the femora are unarmed and more or less

sulcate beneath; the tibie are rounded at the base externally; and the claws are

toothed. Most of the Mexican and Central-American forms are nearly related to

_A. nebulosus (Lec.): A. megalops has very large eyes, but agrees in other respects;

A. inermis wants both the dorsal and lateral prothoracic tubercles, while in

* Dietz includes two species with a 6-jointed funiculus, but these may have to be removed.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1907. UU

146 SHYNCHOPHORA.

A. cavisternum, A. mexicanus, &c. all four tubercles are well-developed; A. biolleyt

might easily be mistaken for a Phytobuid.

a. Metasternum deeply excavate and emarginate (the cavity open behind in

A. cavisternum), the rostral canal sometimes extending to far beyond the

middle coxe.

a’. Eyes very large, subcontiguous ; prothorax 4-tuberculate ; elytral inter-

stices rugulose; pygidium (¢) deeply foveate . . . . + + + +

b'. Eyes smailer, distant.

a’. Elytral interstices with small setigerous tubercles ; prothorax bituber-

culate, without prominences on the disc. . . . - «+ + «© *

b’. Elytral interstices rugulose. .

a’. Prothorax 4-tuberculate.

i. Head sulcate between the eyes: upper surface shining. . . -

. Head not sulcate between the eyes: upper surface dull

b°. "Drothorae bituberculate, the disc convex . . . . o 8 ee

b. Metasternum at most shallowly depressed between the middle coxe, the

rostral canal not extending beyond the mesosternum ; elytral interstices

rugulose. .

ce’. Prothorax 4- or 6-tuberculate.

ce’. Mesosternum with a prominent ridge on each side between the coxe;

rostrum comparatively slender and almost straight, much smoother

inthe @ thaninthe¢@ . . .. . 2. 6 6 ew we te ee

d’. Mesosternum at most feebly carinate on each side between the coxe.

c’. Rostrum stout, rugose in both sexes; mesosternal depression

deeper.

c'. Elytra indistinctly cinereo-variegate ; intermediate tibie of the ¢

sharply unguiculate. . . . . 1 ee oe ee

dad‘. Elytra distinctly cinereo-variegate ; intermediate and posterior

tibie of the ¢ sharply unguiculate. . . . eo ee

d*, Rostrum comparatively slender, rugose in the g and almost smooth

in the 2 ; prothorax 6-tuberculate; mesosternal depression almost

obsolete 2. 2 1. ew we ee ee ee

d', Prothorax bituberculate, the disc at most obsoletely binodose. . . .

e'. Prothorax without tubercles ; mesosternal depression very shallow . .

1. Auleutes megalops, sp. n.

megalops, sp. 0.

asperipennis, Sp. D.

sulcifrons, sp. 0.

cavisternum, sp. 1.

instabilis, sp. D.

inspersus, Sp. N.

mexicanus, 8p. Nn.

similis, sp. n.

biolleyi, sp. n.

dispersus, sp. D.

inermis, Sp. N.

Short ovate, broad, black, variegated above with rufo-piceous, the tip of the rostrum, antenne, apical margin

of the elytra, knees, and tarsi ferruginous; the vestiture very fine and scattered. Head densely, minutely

punctate, feebly carinate on the vertex; eyes very large and prominent, almost contiguous in front ;

rostrum strongly arcuate, stout, very little longer than the prothorax, depressed at the base, rugulosely

punctate, smoother at the tip. Prothorax subconical, finely punctate, the disc gibbous and strongly

binodose, the lateral tubercles prominent, the anterior portion narrow and tubulate, with two small

tubercles at the middle of the anterior margin. Elytra very broad, short, compressed at the sides before

the middle and transversely depressed at the base, the base itself sharply margined on each side of the

scutellum ; deeply striate, the stria finely punctate, the interstices rather convex and densely punctate.

AULEUTES. 147

Metasternum arcuato-emarginate, the excavation very deep, closed behind, and extending as far as the

posterior margin of the middle coxe. Fifth ventral segment transversely depressed in the middle.

Pygidium deeply foveate. Legs short and rather stout; femora very shallowly sulcate beneath; inter-

mediate tibie unguiculate ; tarsal claws angularly dilated at the base.

Length 21, breadth 18 millim. (¢.)

Hab. Guatemaua, San Juan in Vera Paz (Champion).

One worn specimen, a male. It may be known by the very large eyes (larger than

in any Ceuthorrhynchid known to me), the sinuate sides of the elytra, the deeply

foveate pygidium, &c.

2. Auleutes asperipennis, sp. n.

Short ovate, shining, black, the anterior portion of the prothorax and the elytra reddish or brown, the antenne,

tibize, and tarsi more or less ferruginous, the femora usually infuscate; the elytra set with numerous

short, stiff, semierect, pallid setee, and a line of cinereous scales at the base of the suture, the rest of the

vestiture very sparse and fine. Head and rostrum rugosely punctate, the latter exceedingly stout, arcuate,

and not longer than the prothorax. Prothorax constricted and much narrowed in front; coarsely

punctate, the disc without prominences, the lateral tubercles conspicuous. Elytra subcordate, depressed

along the suture anteriorly ; deeply punctate-striate, the interstices rather convex and set with setigerous

granules. Metasternum arcuato-emarginate, the excavation very deep, closed behind, reaching as far as

the posterior margin of the middle coxe. Fifth ventral segment feebly foveate, and the tibie unguiculate

at the inner apical angle, in the ¢.

Length 14-132, breadth 1-145 millim. (¢ Q.)

Hab. Panama, Bugaba (Champion).

Eleven specimens. The only Central-American Ceuthorrhynchid known to me with

minute, pointed, setigerous granules on the elytra. A. asper and A. tenuipes (Lec.)

appear to be allied forms.

3. Auleutes sulcifrons, sp. n.

Short ovate, shining, black, the antenne, apical margin of the elytra, knees, tibie, and tarsi ferruginous ;

clothed with widely scattered, minute, hair-like, white scales, which on the elytra are almost wholly

condensed into two common, interrupted fascia—one, before the middle, strongly undulate, the other

towards the apex, transverse. Head coarsely punctate, sulcate between the eyes ; rostrum stout, curved,

not longer than the prothorax, very sparsely punctate, smooth along the middle. Prothorax constricted

and much narrowed in front, coarsely punctate; the disc shallowly sulcate and with two short oblique

ridges, the lateral tubercles acute and very prominent, the anterior margin feebly emarginate in the middle

and with two small widely-separated prominences. Elytra rounded-triangular, sinuate at the base, the

humeri rather prominent; deeply punctate-striate, the interstices somewhat asperate, the alternate ones

convex. Metasternum arcuato-emarginate, the excavation very deep, closed behind, reaching as far as

the posterior margin of the middle coxe.

Length 23, breadth 13 millim. (2.)

Hab. Mexico, Chilpancingo (H. H. Smith).

One specimen. More shining than its allies, the head sulcate between the eyes, the

rostrum (2 ) comparatively smooth, the prothorax binodose on the disc and with acute

lateral tubercles, the elytra faintly and irregularly albo-bifasciate,

UU 2

148 RHYNCHOPHORA.

4, Auleutes cavisternum, »p. n.

Short ovate, dull, black, the anterior margin of the prothorax, and the legs in part, ferruginous; the vestiture

very fine, brownish and cinereous (in great part abraded), Head rugulosely punctate; rostrum stout,

arcuate, about as long as the prothorax, rugulosely punctate and also carinate. Prothorax constricted

and much narrowed in front, densely, rugulosely punctate, the dise nodose and with two short, curved,

prominent ridges, the space between them depressed, the lateral tubercles prominent, the anterior margin

notched in the centre. LElytra deeply punctate-striate, the interstices rugulose, the alternate ones raised,

the others somewhat convex. Meso- and metasternal excavations deep, limited on each side by a

conspicuous ridge, the cavity in the metasternum reaching to the middle and open behind. Fifth

ventral segment transversely depressed in the middle. Legs short, intermediate tibie unguiculate at the

inner apical angle.

Length 12, breadth 14 millim. (<¢.)

Hab. GuaTEMALA, San Juan in Vera Paz (Champion).

One specimen, in bad condition. The short, acute ridges on the disc of the

prothorax, the raised alternate elytral interstices, and the long, deep rostral canal

distinguish A. cavisternum. The elytral suture appears to have a greyish streak at

the base. The posterior femora are a little less incrassate, and the humeri more

prominent, than in Hypoceliodes obliquus, which is otherwise very like A. cavisternum.

5. Auleutes instabilis, sp.n. (Tab. IX. fig. 2, 2.)

Short ovate, moderately shining, black, the antennex, apical margin of the elytra, knees, tibie, and tarsi more

or less ferruginous ; the vestiture very fine and sparse, brownish and white intermixed, the elytra with

scattered coarser white scales, which are usually concentrated into a transverse, narrow, curved, inter-

rupted fascia on the outer part of the dise at about the middle and a few small spots. Head and rostrum

rugosely punctate, the latter stout, arcuate, and in some specimens reaching far beyond the middle coxe.

Prothorax constricted and much narrowed in front, coarsely punctate, the disc faintly sulcate and without

prominences, the lateral tubercles sharp. Elytra deeply punctate-striate, the interstices convex and finely

asperate. Metasternum arcuato-emarginate, the excavation very deep, closed behind, and sometimes

extending to the middle. Intermediate tibies feebly unguiculate at the inner apical angle in the ¢.

Length 2-23, breadth 1j-1? millim. (¢ 2.)

Hab. Muxtco (Truqu?, in coll. Fry), Chilpancingo, Teapa (ZH. H. Smith); Guatemaa,

San Isidro (Champion) ; Panama, Bugaba (Champion).

Hight specimens, varying in the length of the rostrum and rostral canal, and in the

disposition of the coarser scattered white scales on the elytra, these being usually

condensed into small spots and sometimes into a short streak at the base of the suture.

The simply convex, non-tuberculate disc of the prothorax, &c., separates A. instabilis

from A. sulcifrons. The deeply excavate metasternum distinguishes it from the other

similar forms.

6. Auleutes inspersus, sp. n.

Short ovate, black or piceous, the antennew, and the legs wholly or in part, ferruginous; the vestiture fine,

brown and white intermixed, the white scales on the elytra condensed into irregular, interrupted,

undulate fascie. Head rugulosely punctate, carinate on the vertex, the eyes rather prominent ; rostrum

comparatively slender, feebly curved, reaching as far as the posterior margin of the middle coxa,

rugulosely punctate and obsoletely carinate in the ¢, much smoother and shining in the 2. Prothorax

AULEUTES. 149

constricted and much narrowed in front, finely punctate; the disc binodose and shallowly sulcate, the

lateral tubercles moderately prominent, the anterior margin notched in the middle. Elytra deeply

punctate-striate, the interstices finely asperate, the alternate ones raised. Mesosternum with a very

prominent oblique ridge on each side between the middle coxe, the metasternum flattened or slightly

depressed in front. Fifth ventral segment deeply foveate in the middle, and all the tibise unguiculate at

the inner apical angle, in the ¢.

Length 13-21, breadth 11-14 millim. (6 2.)

Hab. Muxico (fége, in coll. Solari), Atoyac in Vera Cruz, Teapa (H. H. Sinith) ;

GUATEMALA, San Gerénimo (Champion).

Eight specimens. In this species the rostrum is almost straight, comparatively

slender, and very much smoother in the female than in the male, and the apical

portion of the rostrum is received between the two prominent mesosternal carine, the

rostral canal not reaching the metasternum.

7. Auleutes mexicanus, sp. n.

Short ovate, dull, black, the antenne and tarsi, and sometimes the apical margin of the elytra also, ferruginous ;

the vestiture fine and rather close, fuscous intermixed with cinercous, the cinereous scales clustered into

small, scattered, faint patches on the elytra (but not extending on to the suture at the base), the under

surface with coarser whitish scales. Head rugosely punctate; rostrum very stout, arcuate, a little

longer than the prothorax, rugosely punctate and finely carinate. Prothorax constricted and much

narrowed in front, densely, rather coarsely punctate, the apical margin notched in the middle, the dise

binodose and shallowly sulcate, the lateral tubercles sharp, the ocular lobes rather prominent. Llytra

punctate-striate, the interstices rugulose, the alternate ones conyex. Mesosternum somewhat deeply

excavate, the metasternum also slightly depressed between the middle coxe. Fifth ventral segment

with a large fovea in the ¢. Legs rather stout, the posterior femora thickened; intermediate tibiz

strongly, and the posterior tibie feebly, unguiculate at the inner apical angle in the ¢.

Length 21-24, breadth 13-1} millim. (¢ @.)

Hab. Mexico, Omilteme, Chilpancingo, and Amula in Guerrero (H. H. Smith),

Yolos in Oaxaca (Sallé).

Six specimens. In this insect the elytra are faintly mottled with cinereous, the

prothorax is quadrituberculate, the rostrum is very stout and rugose in both sexes, and

the intermediate tibiz only of the male are sharply unguiculate. ‘The posterior femora

are rather stout, and the species would be almost as well placed in //ypoceliodes, near

H. phytobioides.

8. Auleutes similis, sp. n.

Very like A. mewicanus, but with the cinereous scales more abundant above, clustered on the elytra into

various irregular, interrupted, undulate fasci# and a short streak at the base of the suture; the fifth

ventral segment with a shallow transverse impression, and both the intermediate and posterior tibiw

strongly unguiculate, in the ¢.

Length 21-21, breadth 12-13 millim. (¢ 9.)

Hab. Muxico, Xucumanatlan in Guerrero (H. H. Smith).

-Three males and one female, apparently specifically distinct from <A. mexicanus,

the male-characters differing in the two forms.

150 RHYNCHOPHORA.

9. Auleutes biolleyi, sp.n. (Tab. 1X. fig. 3, 2.)

Short ovate, black, the antenne, apical margin of the elytra, knees, and tarsi ferruginous; variegated above

with a somewhat dense clothing of small cinereous (or pale ochreous) and brown scales, the dorsal

elevations of the prothorax and the base of the suture blackish. Head finely, rugulosely punctate,

slightly depressed between the eyes; rostrum arcuate, comparatively slender, longer than the prothorax,

rugulose and dull in the g¢,a little more elongate, shining, and almost smooth in the 9. Prothorax

narrowing from near the base, densely, finely punctate, the disc sulcate and binodose, the lateral

tubercles prominent, the anterior margin notched in the middle and armed with two small compressed

tubercles, Elytra broad, finely punctate-striate, the interstices rugulose, the alternate ones rather

convex, the sutural region depressed anteriorly. Mesosternal excavation almost obsolete, limited on

each side by a distinct ridge. Fifth ventral segment shallowly foveate, and the intermediate tibie

unguiculate at the inner apical angle, in the g.

Length 2, breadth 14 millim. (¢ @.)

Hab. Costa Rica, San José (Biolley).

One pair. This species has wholly the facies of a Phytobiid, but as the mesosternal

depression is traceable, and the funiculus is 7-jointed, it must be placed in Auleutes.

The rostrum is almost smooth in the female, and rugose in the male, as in A. znspersus.

10. Auleutes dispersus, sp. n.

Short ovate, black, the antennz, anterior margin of the prothorax, apical margin of the elytra, knees, and

tarsi ferruginous; the vestiture very fine, cinereous intermixed with brown, the cinereous scales on the

elytra not clustered into definite spots, the under surface with scattered whitish scales. Head rugulosely

punctate, carinate on the vertex; rostrum very stout, arcuate, rather longer than the prothorax, rugosely

punctate. Prothorax densely, finely punctate, the disc shallowly suleate, not or obsoletely binodose, the

lateral tubercles prominent, the antcrior margin notched in the middle. Elytra punctate-striate, the

interstices rugulose and feebly convex. Mesosternum somewhat deeply excavate, the metasternum also

slightly depressed between the middle coxe. Fifth ventral segment feebly foveate in the ¢. Legs

rather slender ; intermediate and posterior tibixe sharply unguiculate at the inner apical angle in the ¢.

Length 2-21, breadth 13-13 millim. (¢ 9.)

Hab. Mexico (Truqut, in coll. Fry), Xucumanatlan and Amula (H. H. Smith).

Three specimens. Closely related to A. mexicanus and A. similis, the prothorax

finely punctate and without definite tubercles on the middle of the disc, the vestiture

very fine, not clustered into definite markings on the elytra.

11. Auleutes inermis, sp. n.

Short ovate, black, the antenne, the extreme base of the femora, knees, and tarsi (the apical joint excepted)

ferruginous ; the vestiture very fine, fuscous above, with scattered coarser white scales intermixed, these

latter condensed into a narrow longitudinal line on each side of the disc of the prothorax, which extends

outwards along the basal margin, and various faint spots and streaks on the elytra (a short streak on the

second interstice below the base and a transverse mark at the middle of the sides conspicuous), the under

surface also with white scales. Head rugulosely punctate, the eyes separated by rather less than the

width of the rostrum; the latter stout, feebly arcuate, a little longer than the prothorax, rugulosely

punctate and finely carinate. Prothorax constricted in front, narrowing from near the base; densely,

very finely punctate, the anterior margin notched in the centre, the dorsal and lateral tubercles wanting.

Elytra subcordate, deeply punctate-striate, the interstices rugulose and somewhat convex. Mesosternal

excavation very shallow. Legs comparatively slender ; intermediate and posterior tibixw feebly ungui-

culate at the inner apical angle.

Length 1%, breadth 1,4, millim. (<¢.)

AULEUTES.—PERIGASTER. 151

Hab. Nicaracua, Chontales (Janson).

Very like the N.-American A. nebulosus (Lec.), but smaller and duller, the prothorax

without tubercles and more finely punctate. ‘The fifth ventral segment is unim pressed.

The mesosternal excavation is limited on each side by a faint ridge. One specimen.

Sect. PHYTOBII.

Phytobii, Dietz.

DIETZELLA, nom. nov.

Celogaster, Schénherr, Gen. Cure. iv. p. 588 (1837) ; Lacordaire, Gen. Col. vii. p. 208; Leconte,

Proc. Am. Phil. Soc. xv. p. 282 (part.); Dietz, Trans. Am. Ent. Soc. xxiii. p. 455 (nee

Schrank, 1780). .

Dietz restricts Calogaster to two N.-American species (neither of which I have seen),

and Ceuthorhynchus sertuberculatus, Boh., evidently ought to be included in the same

genus. Its cl.ief characters are, the stout, moderately long rostrum, with deep, parallel

scrobes, the 6-jointed funiculus, the prominent supra-orbital ridges, the well-developed

ocular lobes of the prothorax, the unarmed femora, and the strongly toothed tarsal

claws. ‘The genus belongs to the “‘ Phytobii spurii” of Dietz.

1. Dietzella sextuberculata. (Tab. IX. fige. 4, 4a.)

Ceuthorhynchus sextuberculatus, Boh. in Schéuh. Gen. Cure. vii. 2, p. 131°.

Hab. Mexico ! (Truqut, in coll. Fry), Xucumanatlan in Guerrero (H. H. Smith).

We have received a single specimen of this species from Guerrero, agreeing with

the type communicated by Dr. Aurivillius, and there is also an example of it in the

Fry collection in the British Museum ; they are probably all of the female sex.

PERIGASTER.

Perigaster, Dietz, Trans. Am. Ent. Soe. xxiii. p. 458 (1896).

The single species placed under this genus has the characters assigned to Perigaster

by Dietz, except that the tarsal claws are toothed* as in Dietzella (Celogaster) and

the supra-orbital ridges are wanting. The rostrum is short and stout, with narrow

oblique scrobes; the funiculus is 6-jointed; the eyes are rather prominent; the ocular

lobes of the prothorax are almost obsolete; the anterior coxe are well-separated ; and

the rostral canal does not reach the mesosternum.

* In the N.-American Pelenomus cavifrons, Lec. (several specimens of which have been sent me by

Mr. Wickham), the tarsal claws have a short acute tooth, a character overlooked by both Leconte and

Dietz.

152 RHYNCHOPHORA.

1. Perigaster tetracanthus, sp.n. (Tab. IX. figg. 5, 5a, 3.)

Broad ovate, short, dull, black or piceous, the elytra rufescent in one specimen, the antenne, anterior margin

of the prothorax, apical margin of the elytra, and legs ferruginoas; thickly clothed with small scales ;

the prothorax with the entire disc, a faint median line (and sometimes a small spot near each lateral

tubercle also) excepted, blackish, and the declivous sides whitish or ochreous ; the elytra blackish-brown or

brown, more or less mottled with cincreous beyond the middle, the pallid scales sometimes predominating

over their entire surface; the vestiture of the under surface whitish or ochreous. Head and rostrum

rugulosely punctate, the vertex carinate, the eyes rather prominent, without supra-orbital ridge, the

rostrum short and stout. Prothorax rapidly narrowing from near the base, densely, finely punctate ;

the disc gibbous and suleate, the lateral tubercles acute, the anterior margin broadly and shallowly

emarginate in the middle, the emargination limited on each side by an acute compressed tubercle.

Elytra broad, finely punctate-striate, the interstices feebly convex and densely rugulose, the suture

depressed at the base. Prosternal suleus moderately deep, the anterior coxee separated by about the

width of one of them. Intermediate tibie sharply, and the posterior tibice feebly, unguiculate at the

inner apical angle in the 3 ; tarsal claws with a long tooth.

Length 2-2}, breadth 12-12 millim. (¢ 9.)

* Hab. Mexico (Lége, in coll. Solari), 'Teapa (H. H. Smith); Guaremana, San

Gerénimo (Champion); Costa Rica, San José (Biolley).

Seven specimens, varying in the colour of the vestiture, &c., though the prothorax

always has a very large triangular blackish space on the disc.

Sect. CEUTHORRHYNCHI.

Ceutorhynchi, Dietz.

CEUTHORRHYNCHUS.

Ceuthorhynchus, Germar, Ins. Sp. Nov. p. 217 (1824) ; Schénherr, Gen. Cure. iv. p. 475.

Ceutorhynchus, Leconte, Proc. Am. Phil. Soc. xv. p. 272 (part.); Dietz, Trans. Am. Ent. Soe.

Xxlll. pp. 419, 420 (part.).

A holarctic genus, very numerous in species in the Palzarctic region, and in North

America extending southwards to the mountains of Guatemala.

1. Ceuthorrhynchus rape.

Ceuthorhynchus rape, Gyll, in Schéuh. Gen. Cure. iv. p. 5477; Lec. Proc. Am. Phil. Soe. xv.

pp. 278, 274°.

Ceuthorhynchus uffluentus, Dietz, Trans. Am. Ent. Soc. xxiii. pp. 420, 421°.

Hab. Norvu America, Canada 2%, Middle and Western States 23,—Mexico (Truqui,

an coll. Fry), Mexico City (1. H. Smith)—Europe}, &c.

There can be little doubt that Leconte correctly identified this species, Dietz’s

comparative description (/.¢.) of the European C. rape, Gyll., being evidently taken

from the allied C. assemilis, Payk. We are indebted to Mr. Wickham for a N.-American

example of C. affluentus for comparison. The insect has probably been introduced

into Mexico with cruciferous plants. One of the four Mexican specimens before me is

in very fresh condition.

CEUTHORRHYN CHUS.—CEUTHORRHYNCHIDIUS. 153

2. Ceuthorrhynchus truquii, sp.n. (Tab. IX. fig. 6, ¢.)

Short ovate, somewhat flattened above, dull, nigro-piceous or piceous, the antenna, tibia and tarsi, and

sometimes the femora also, ferruginous ; the upper surface thickly clothed with small, narrow, intermixed

brown and white scales, the latter condensed into three lines on the prothorax and various small scattered

patches on the elytra, the elytra also with a dense, elongate, white scutellar patch ; the vestiture of the

legs and under surface white. Head rugulosely punctate ; rostrum long and slender, arcuate, the basal

half thickly, and the apical half sparsely, punctate, smoother in the @ ; antennal club acuminate-ovate.

Prothorax short, abruptly narrowed and constricted at about the middle, densely, finely punctate, the

disc faintly suleate, the lateral tubercles well-developed, the anterior margin a little raised on each side of

the shallow central emargination, the ocular lobes prominent. Elytra much wider than the prothorax,

oblong-snbquadrate, finely punctate-striate, the interstices densely rugulose. Femora unarmed. Inter-

mediate and posterior tibiz unguiculate at the inner apical angle in the ¢. Tarsal claws with a short

tooth.

Length 2-21, breadth 11-11 millim. (¢ 2.)

Hab. Mexico (Truqui, in Mus. Brit.), Omilteme in Guerrero 8000 feet (H. HH.

Smith) ; Guatemaua, Quiche Mts. 7000-9000 feet (Champion).

Seven examples. Near C. adspersulus, Dietz, but with the close fine vestiture

wholly squamiform, the intermixed narrow white scales on the elytra not so large, the

prothorax with prominent lateral tubercles. The elytral markings are variable and the

legs are sometimes entirely ferruginous.

8. Ceuthorrhynchus adspersulus.

Ceuthorrhynchus adspersulus, Dietz, Trans. Am. Ent. Soe. xxiii. pp. 437, 441%.

Hab. Nortu America, California and Arizona !.—Mexico, Northern Sonora (Morrison).

Sent to us in numbers as from Sonora, under the name C. pustllus. The elytral

vestiture in this insect is piliform intermixed with rather large oval white scales.

CEUTHORRHYNCHIDIUS.

Ceuthorhynchidius, Jacquelin Duval, Gen. Col. Europ. i. Introd. p. ceviii (1857) ; iv. p. 60 (1868).

Calosirus, Thomson, Skand. Col. i. p. 140 (1859) ; vii. p. 254 (1865).

Ceutorhynchus, Leconte, Proc. Am. Phil. Soc. xv. p- 272 (part.) ; Dietz, Trans. Am. Ent. Soe.

Xxil. pp. 419, 420 (part.).

This genus has not been adopted by American Coleopterists, nevertheless it seems

to me convenient to retain it, the species being easily separable from Ceuthorrhynchus

by the 6-jointed funiculus. Fourteen N.-American forms possess this character and

two are now added from Mexico,

1. Ceuthorrhynchidius wickhami, sp. n. (Tab. IX. figs. 7,7, 9 .)

Oblong ovate, flattened above, dull, nigro-piceous, the anterior margin of the prothorax and the legs sometimes

ferruginous ; the upper surface densely clothed with small, narrow, intermixed brown and whitish scales,

the latter condensed into a faint median vitta on the prothorax and various small scattered patches on

the elytra, these becoming coalescent at the apex, the elytra also with a dense, oblong, scutellar patch of

overlapping white scales; the vestiture of the under surface and legs whitish. Head rugulosely

BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1907. xx

154 RHYNCHOPHORA.

punctate; rostrum long, arcuate, not very slender, thickly punctate in its basal half, the apical half

smoother; antennal club long, acuminate-ovate, the funiculus 6-jointed, 1 and 2 subequal in length.

Prothorax broader than long, abruptly narrowed and tubulate in front, densely, finely punctate, the

anterior margin raised, feebly emarginate, the lateral tubercles wanting, the base almost straight, the

ocular lobes prominent. Elytra much wider than the prothorax, oblong-subquadrate, finely punctate-

striate, the interstices densely rugulose, somewhat asperate towards the sides and apex. Femora

unarmed. ‘Tarsal claws simple.

Length 31, breadth 1-14 millim. ( 2.)

Hab. Norva America, Parowan, Utah (Wickham).—Mextco (Truqui, in coll. Fry),

Mexico City (H. H. Smith).

Six specimens, the four from Utah (sent to me as an undescribed species by

Mr. H. F. Wickham) with the legs almost entirely ferruginous. Following Dietz’s

arrangement, the present insect belongs to the C. septentrionis-group, but it is very

much larger than any of the eight forms enumerated by him. C. wickhami has some-

what the facies of the much smaller European C. quercicola, Payk. It lives on a

species of Argemone *, belonging to the order Papaveracee.

2. Ceuthorrhynchidius aztecus, sp. n.

Ovate, narrow, shining, nigro-piceous, the elytra reddish at the apex, the tip of the rostrum and the legs in

great part ferruginous ; thickly clothed with small, oblong-ovate brownish and larger dirty-white scales,

the brownish scales with a brassy lustre, the others condensed into a median line on the prothorax and

an elongate scutellar patch on the elytra, the scales at the sides of the latter, like those on the under

surface and legs, white. Head rugulosely punctate; rostrum moderately long, arcuate, striato-punctate,

smoother at the tip; antennal club acuminate-ovate ; funiculus 6-jointed, 3 much shorter than 2,

2 nearly as long as 1. Prothorax short, rounded at the sides, constricted and much narrowed in front,

densely, finely punctate, the lateral tubercles small, the anterior margin truncate. Elytra oblong-

subquadrate, finely punctate-striate, the interstices rugulose. Femora unarmed. Intermediate and

posterior tibie feebly unguiculate at the inner apical angle. Tarsal claws simple.

Length 14, breadth ;%, millim. (<¢.)

Hab. Mexico, Mexico City (ZZ. H. Smith).

One specimen. This minute insect belongs to Dietz’s C. septentrionis-group, but it

cannot be identified with any of the species described by him. The scales on the

prothorax have a brassy lustre, and those on the scutellar patch and at the sides of the

elytra are rather large and oval.

Group BARINA.

Under this group are included the Ambatides, Péridinétides, Pantotélides, and

Baridiides of Lacordaire, all of which have ascending mesothoracic epimeraf. The

‘‘ Ambatides ” were widely separated from the Barina in his arrangement, on account of

* A, mexicana is a common weed in Mexico and A. hispida inhabits both Utah and Northern Mexico

(cf. Biol. Centr.-Am., Bot. i. p. 27).

+ The 8.-American genera Bebelatus, Glycaria, and Enops, Pasc., are Cryptorrhynchids: Bebelatus comes

near Xenosomus, Faust; Glycarta and Hnops belong to Conotrachelus in the wide sense, both having toothed

tarsal claws and non-ascending mesothoracic epimera.

AMBATES. 155

their contiguous anterior coxe, a character possessed by various true Barids. The

genera Ambates and Pteracanthus are, in fact, extremely closely related to the

** Péridinétides,” near which they must obviously be placed. These latter again are so

nearly allied to the ‘“‘ Baridiides” that the best course seems to be to place them all

under one group, Barina, which in Tropical America must be nearly or quite as

numerous in species as the Cryptorrhynchina.

Sect. AMBATIDES.

Ambatides, Lacordaire.

AMBATES.

Embates, Chevrolat, Col. Mex., Cent. i. fase. i. no. 17 (1833) (sine descr.).

Ambates, Schénherr, Gen. Cure. iii. p. 278 (1836), vii. 2, p. 150 (1843) ; Lacordaire, Gen. Col. vi.

p- 513 ; Chevrolat, Ann. Soc. Ent. Fr. 1877, p. 341.

Drepanambates, Jekel, Ann. Soc. Ent. Belg. xxvi. p. 85 (1883).

Ambates includes a large number of Tropical-American forms, some of them so like

a Hilipus or Cholus as to be constantly mistaken for species of those genera*. The

chief characters of the present genus (apart from the ascending mesothoracic epimera)

are, the contiguous anterior coxe, the flattened or obsoletely sulcate anterior portion

of the prosternum, the descending scrobes (which are placed along the lower outer

edges of the rostrum), and the strongly dentate femora. The rostrum is stout and

arcuate, and the antenne, except in those species with the rostrum more elongate than

usual ¢ (=Drepanambates, Jekel), are inserted beyond the middle, at least in the

male. ‘The tarsal claws, as noted by Lacordaire, are in some species subconnate at

the base, and in others free. ‘The males have the first one or two ventral segments,

and sometimes the fifth also, depressed or excavate down the middle; and in a few

cases (A. melanops, A. ocellatus, A. cretifer, and A. polymorphus) the posterior tibie

are ciliate within in this sex. ‘The species may be grouped thus:

Prothorax feebly convex or subconical ; outer dorsal interstices of the elytra not

costate.

Prothorax and elytra with large white (or pale ochreous) patches on each

side extending downward on to the under surface of the body . . . . Species 1.

* Necedus, Pascoe, referred by its author to the “ Cholina,” belongs to the ‘“ Ambatides”; it is closely

related to Ambates.

+ A. leucopleura, A. belti, A. angustatus, A. albiventris, A. immaculatus.

+ Ambates decemnotatus.—Very near A. cretifer, Pasc., but with the prothorax more convex, strongly

rounded at the sides, densely punctate, and obsoletely carinate ; the ochreous patch on each side of the

prothorax and the subhumeral patch on the elytra not extending so far downward, the latter triangular

and disconnected from the metasternal spot, the other markings as in A. cretifer, that on the abdomen

wanting, the rest of the elytral surface clothed with minute black scales ; ventral segments 1 and 2 broadly

excavate down the centre, and all the tibiew densely ciliate with long blackish hairs from the middle to

the apex, in the ¢ Length 9, breadth 32 millim.— Hab. Conomsra (coll. Fry, in Mus. Brit.),

XX 2

156 RHYNCHOPHORA.

Prothorax and elytra with a sharply-defined continuous or interrupted white

(or pale ochreous) vitta on each side, which sometimes reaches the apex,

the elytra (except in A. belit) without black markings on the disc . . . Species 2-9.

Prothorax obsoletely lineate on each side ; elytra with a complete or interrupted

pale ochreous fascia . . . oe . . Species 10, 11.

Prothorax obsoletely lineate on each side elytra each with three small pale

ochreous spots . . - -« + + . oo oe . os 6 « « Species 12.

Prothorax sharply vittate on each side ; elytra each with a broad, sinuous,

interrupted ochreous stripe, which on the apical half is limited on each side

by a black patch . . . . . - . . . . . Species 13.

Prothorax broadly vittate on each side ; elytra cach with two black marks, the

rest of their vestiture close and uniform. . . . . . . + + + + «+ Species 14.

Prothorax usually narrowly vittate or lineate on each side ; elytra each with

one or two black (or dark brown) velvety patches on the disc.

The dark markings not confluent at the suture, often followed or preceded

by a white (or ochreous) spot or streak, or edged with white (or

ochreous) scales. . . . Species 15-26.

The single dark patch on each elytron confluent with the opposite o one at the

suture. . 1 ee Coe ee ee ee we ee.) Species 27.

The dark markings on the elytra reduced to a common, short, transverse

fascia. oe ee ee ee ee ee ee we ee ee) Species 28.

Prothorax narrowly vittate on each side ; elytra each with a minute spot on

the fifth interstice and an irregular apical patch ochreous. . . . . . Species 29.

Prothorax broadly vittate on each side; elytra with an irregular ochreous

apical patch, the rest of their vestiture black . . . . . 1 | . Species 30.

Prothorax with the flanks and the elytra each with an apical spot and an

oblique patch beneath the shoulder, whitish . . . . . . . . « . Species 31.

Prothorax and elytra immaculate ; the vestiture uniform above and beneath . Species 32.

Prothorax transversely convex; outer dorsal interstices of the elytra narrowly

costate anteriorly: prothorax and elytra fasciate . . . . . . . . . Species 33.

1. Ambates cretifer. (Tab. IX. figg. 8, 3; 9, 2, var.)

Ambates cretifer, Pasc. Ann. & Mag. Nat. Hist. (5) vi. p. 177°.

Ambates octonotaius, Jekel, in litt. *.

Hab. Nicaragua, Chontales! (Belt); Costa Rica (Pittier, in Mus. Brit.; Van

Patten), San Carlos (ea coll. Schild-Burgdorf ), Cariblanco, Sarapiqui (Lankester),

Savanillas de Pirris (Underwood).

Var. The white lateral patches on the prothorax not extending over the whole of the flanks, and separated

from the patch on the front of the prosternum ; the apical spots on the elytra, and those on the second

ventral segment also, wanting, the second elytral spot oblique.

Hab. Costa Rica, Turrialba (ex coll. Schild-Burgdorf ).

Easily recognized by the comparatively smooth, shining surface and the large patches

of chalky-white or ochreous scales above and beneath—one along each side of the

AMBATES., 157

prothorax, extending over the whole of the flanks; one, large and oblique, at the sides

of the elytra before the middle, extending downward over the sides of the metasternum ;

one below this, transverse, and another at the apex ; and one on each side of the second

ventral segment. The posterior tibie have a dense fringe of long ochreous hairs along

the inner edge from the middle to the apex in the male, and a fringe of short whitish

hairs in the female. The ventral depression of the male is shallow.

The variety is represented by a single specimen ( ) presented to us by Dr. Heller.

2. Ambates polymorphus, sp. n. (Tab. IX. figg. 11, ¢; 12 ¢,13 9, vars.)

Elongate, shining, black, the legs sometimes in part ferruginous ; the prothorax with a broad vitta on each

side, extending forward on to the head and rostrum, and another on the lower part of the flanks, the

elytra each with a broad sinuous submarginal vitta extending from the base to the apex, a large patch

at the side of the metasternum, another at the side of the second ventral segment, and a small lateral

spot on the second or second and third segments, densely clothed with oval yellowish-white scales, the

vestiture of the rest of the surface very fine, blackish or fuscous, the metasternum and abdomen with a

broad space down the middle almost bare. Rostrum very stout, strongly arcuate, bent downwards at

one-third from the tip, carinate and coarsely punctate to about the middle and more finely punctate

thence to the apex, a little smoother in the 9. Prothorax nearly as long as broad, subconical, slightly

rounded at the sides; closely, finely punctate, and with indications of a smooth median line. Elytra

elongate, with rows of fine punctures placed in shallow stri, the interstices flat and minutely punctate,

the subapical callosities prominent. Ventral segments 1 and 2 broadly excavate down the middle, and 5

with a large shallow depression, and the posterior tibis strongly ciliate within, in the ¢.

Var. a. The sinuous elytral vitta connected laterally with the metasternal patch.

Var. 6. The sinuous elytral vitta interrupted at the middle, the apex of the anterior portion extending more

or less inward towards the suture, the posterior portion curved.

Length 84-104, breadth 33-33 millim. (¢ @.)

Hab. Costa Rica, Irazu (Rogers: var. a); Panama, Chiriqui (coll. Fry: var. {3),

Bugaba, Volcan de Chiriqui (Champion: all three forms).

Nine specimens, four belonging to the form selected as typical. The broad, complete

or interrupted submarginal stripe, which always reaches the apex, the maculate sides

of the body beneath, the prominent subapical callosities, and the ciliate posterior tibie

of the male, readily distinguish 4. polymorphus. Several species of Hilipus vary in a

somewhat similar way. ‘The propleural stripe is evanescent in the varietal forms.

3. Ambates heilipoides. (Tab. IX. figg. 14, 14a,¢; 15,¢, var.)

Ambates heilipoides, Chevr. Ann. Soc. Ent. Fr. 1877, p. 343.

Var. The white sinuous lateral vitta of the elytra interrupted posteriorly.

Hab. Mexico, San Andres Tuxtla (Sad/é), Teapa (Pilate1, H. H. Smith); Guaremata,

Teleman in Vera Paz (Champion). |

Of this species we possess five specimens from Teapa, one from San Andres, and

one from Teleman, the last-named (fig. 15) having the broad whitish stripe on the

outer part of each elytron abruptly interrupted posteriorly. In this insect the

vestiture of the under surface is entirely brownish. The first two ventral segments

158 RHYNCHOPHORA.

are broadly depressed down the middle in the male, and the rostrum in this sex is

more rugose than in the female.

4. Ambates albovittatus, sp.n. (Tab. IX. figg. 16, 16.0, 3.)

Elongate, shining, black or nigro-piceous ; the prothorax with a broad vitta on each side, extending forward

on to the intraocular portion of the head, the elytra with a broad marginal vitta, curving inward towards

the suture before the apex and extending broadly downward on to the lateral portion of the metasternum,

and the scutellum, densely clothed with oval yellowish-white scales, the rest of the upper surface rather

sparsely clothed with brownish, and that of the under surface with whitish, piliform scales. Rostrum

very stout, strongly arcuate, closely punctate and tricarinate. Prothorax subconical, slightly rounded at

the sides, nearly as long as broad, closely, finely, rugulosely punctate. Elytra elongate, finely punctate-

striate, the interstices flat and minutely punctate. Beneath closely punctate ; ventral segments 1 and

2 broadly depressed down the middle in the g.

Length 8-93, breadth 3-33 millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

One pair. Very like the more northern 4. heilipoides, but with the marginal

white stripe of the elytra extending broadly downward on to the lateral portion

of the metasternum, and not excised on its inner or outer edge, the vestiture of

the rest of the upper surface brownish. The non-ciliate posterior tibie of the male,

the unspotted abdomen, and the abbreviated, posteriorly curved marginal stripe of the

elytra distinguish 4. albovittatus from all the forms of 4. polymorphus.

5. Ambates leucopleura, sp. n. (Tab. IX. figg. 17, 17a, ¢.)

Elongate, rather shining, black, the tibie and tarsi reddish in one specimen ; the prothorax and elytra with

a continuous narrow submarginal vitta, extending forward on to the head and rostrum, and the entire

under surface, a broad bare space down the middle of the metasternum and abdomen excepted, densely

clothed with ochreous or yellowish-white scales, the elytra in one specimen with small clusters of

similarly-coloured scales placed along the striz, the rest of the vestiture of the upper surface very fine,

fuscous, that of the legs yellowish. Rostrum longer than the head and prothorax, strongly arcuate,

stout, rugulosely punctate and tricarinate to beyond the middle, sparsely punctured at the tip. Joints 1

and 2 of the funiculus equal in length. Prothorax almost as long as broad, rounded at the sides

anteriorly, feebly constricted and much narrowed in front; densely, finely, rugulosely punctate, with

indications of a smooth median line. FElytra elongate, finely punctate-striate, the interstices closely,

minutely punctate. Ventral segments with the bare central portion very sparsely punctate, and 1 and 2

broadly excavate down the middle, in the ¢. Tarsal claws free.

Length 77-71, breadth 23-24 millim. (d¢.)

Var. Smaller, the dark vestiture of the upper surface denser and more or less metallic; the elytra more

finely striate, the interstices flat throughout and densely punctulate.

Length 44-5, breadth 1§-2 millim. (¢ @.)

Hab. Costa Rica, Carrillo (Underwood); Panama, Bugaba, Volcan de Chiriqui

(Champion).

Eight specimens, two only belonging to the larger form. Closely related to the

S.-American 4. guadrilineatus (Fabr.), but more shining, the metasternum and

abdomen with a broad, bare space down the middle, the sides of the body beneath

AMBATES. 159

(the flanks of the prothorax included) densely squamose; the prothorax more finely

punctate. The bare median space on the abdomen becomes wider towards the apex,

extending over the greater part of the segments 3-5, and is much smoother in the

male than in the female. The antenne are inserted at about the middle of the

rostrum.

6. Ambates latevittatus, sp.n. (Tab. IX. fig. 18, ¢.)

Elongate, piceous or rufo-piceous; the prothorax and elytra with a broad dense, continuous, submarginal

vitta of rather coarse, overlapping ochreous scales on each side, extending forward on to the head and

rostrum, the rest of the upper surface thickly clothed with small fuscous scales (the elytra sometimes

with a few ochreous scales along the first stria); the under surface in great part (the ventral segments

3-5, and the excavation in the ¢, excepted) densely set with rather coarse yellowish-white scales, the

vestiture of the legs sparse and similarly coloured. Rostrum very stout, strongly arcuate, not longer

than the head and prothorax, densely, rugulosely punctate and tricarinate, smoother at the tip. Joint 2

of the funiculus shorter than 1. Prothorax broader than long, opaque, densely, finely punctate. Elytra

long, finely punctate-striate, the interstices flat and closely punctate throughout. Ventral segments 1

and 2 excavate down the middle in the ¢.

Length 33-5, breadth 13-2 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui (Champion).

Fourteen specimens. Very like the smallest examples of 4. leucopleura, but with

a broader, ochreous, submarginal vitta, a shorter rostrum, the antenne inserted nearer

its tip, the second joint of the funiculus not so long as the first. There are many

allied S.-American forms.

7. Ambates sinuatus, sp. n. (Tab. IX. fig. 19, 2.)

Elongate, dull, nigro-piceous, the legs sometimes in part ferruginous ; the prothorax and elytra with a very

broad, dense, continuous, submarginal vitta of oval ochreous scales on each side, extending forward on

to the head and rostrum, the elytral vitte sinuous, excised on their inner edge below the base and at the

middle, and sometimes coalescent at the apex, the rest of the upper surface thickly clothed with

intermixed blackish and ochreous scales; the sides of the metasternum and abdomen closely, and the

median portion and legs very sparsely, ochreo-squamose. Rostrum stout, arcuate, densely, rugulosely

punctate and tricarinate, smoother at the tip. Prothorax nearly as long as broad, densely, finely

punctate. Elytra long, finely punctate-striate, the interstices flat and densely punctate. Ventral segments

1 and 2 deeply excavate down the middle in the g.

Length 53-64, breadth 2-24 millim. (¢ 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Four specimens. In this insect the very broad complete ochreous vitte of the

elytra are deeply excised on their inner edge at about the middle, the rest of their

dorsal surface is opaque, and the sides of the body beneath (the metathoracic episterna

excepted) are somewhat thickly squamose. The following is a closely allied form.

s. Ambates rhombifer, sp. n. (Tab. IX. figg. 20, 20a, 2.)

| Elongate, shining, rufo-piceous; the prothorax and elytra with a very broad continuous vitta on the outer

part of the disc, extending forward on to the head and rostrum—the elytral vitte not quite reaching the

160 RHYNCHOPHORA.

subapical callosities, extending inward to near the suture, and deeply triangularly excised at the middle,

—an oblong spot near the outer margin of each elytron at the apex, and the lower part of the propleura,

densely clothed with narrow ochreous scales, the rest of the vestiture sparse and fine, fuscous above and

cinereous beneath. Rostrum strongly arcuate, stout, thickly punctate, rugose and carinate at the base.

Joint 2 of the funiculus a little longer than 1. Prothorax slightly broader than long, densely, finely,

rugulosely punctate. Elytra long, finely punctate-striate, the interstices flat, closely, minutely punctate.

Ventral segments 1 and 2 broadly excavate down the middle in the d.

Length 52-61, breadth 2-2-1, millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

Three specimens. Less opaque than A. sinwatus, the elytral vitte still broader, not

reaching the apex, and separated by a narrow dark sutural stripe, which 1s widened

out at the middle into a large rhomboidal patch, the vittee themselves clothed with

narrower scales, the vestiture of the under surface much sparser.

9. Ambates belti, sp.n. (Tab. IX. figg. 21, 21a, 2.)

Moderately elongate, opaque, piceous, the rostrum, antenne, and legs more or less ferruginous ; the prothorax

with a vitta on each side, extending on to the head and rostrum, and a faint median line, and the elytra

with a sinuous posteriorly abbreviated stripe on the outer part of the disc, the sides, a line along the

suture, and various others exterior to it at the base, and an oblong spot at the apex, densely clothed with

pale ochreous scales, the elytral vittee bordered within by a broad, sinuous, blackish or brown stripe and

towards the apex externally by an oblong dark patch; the rest of the vestiture of the upper surface

brownish, that of the under surface dense and whitish. Rostrum longer than the head and prothorax,

strongly arcuate, moderately stout, carinate and rugulosely punctate, the apical half sparsely and very

finely punctate. Joints 1 and 2 of the funiculus equal in length. Prothorax broader than long, rounded

at the sides anteriorly; densely, finely, rugulosely punctate. Elytra finely punctate-striate, the

interstices flat and densely punctate.

Length 44-5, breadth 17-2 millim. (@.)

Hab. Nicaragua, Chontales (Belt).

Two females. Near A. triangularis, but with the sinuous elytral vitte much

narrower, abruptly interrupted towards the apex (not below the base), and bordered

within by a dark stripe, the rostrum (2 ) smoother beyond the middle. The antenne

are inserted at about the middle of the rostrum.

10. Ambates fasciolatus, sp.n. (Tab. IX. fig. 22, 2.)

Ambates fasciolatus, Chevr. Ann. Soc. Ent. Fr. 1877, p. 341°.

Hab. Mexico !, Santacomapan in Vera Cruz (Sai/é).

Of this species we have received a single female specimen. It may be identified by

the common, narrow, curved, ochreous, impressed fascia at about the middle of the

elytra, and the irregular patches of rust-red scales along the sides of the body beneath,

the one on the second ventral segment being the most conspicuous. The second joint

of the funiculus is longer than the first and the head is distinctly foveate between

the eyes.

AMBATES. 161

11. Ambates obliquus, sp. n. (Tab. IX. fig. 23, ¢.)

Ambates obliquus and sallei, Jekel, in litt.

Elongate, rather shining, black ; clothed above and beneath with minute brown hair-like scales, the elytra

each with a dense oblique fascia at about one-third from the apex (extending inward to the second or

third stria), and sometimes some small scattered spots across the middle or around the seriate punctures,

whitish or pale ochreous, the prothorax usually with indications of a faint oblique ochreous line on each

side of the disc. Head with a small fovea between the eyes; rostrum arcuate, stout, thickly punctate

and unicarinate, smoother and longer in the 9; joint 2 of the funiculus much longer than 1. Prothorax

transverse, subconical, closely, finely punctate. Elytra long, finely punctate-striate, the punctures

conspicuous, the interstices closely punctulate. Ventral segments 1 and 2 broadly excavate down the

middle in the ¢.

Length 7-101, breadth 23-35%, millim. (¢ 92.)

Hab. Mexico, Santacomapan and Toxpam in Vera Cruz (Sad/é).

Six specimens. This is a form of A. fasciolatus, and occurs at the same locality,

with the elytra obliquely and separately fasciate towards the apex, and the vestiture

of the under surface uniformly coloured, It is distributed in various collections under

Jekel’s MS. names.

12. Ambates sexpunctatus, sp.n. (Tab. IX. figg. 24, 24a, ¢.)

Elongate, rather shining, black; clothed above and beneath with minute brown hair-like scales, the prothorax

with a faint oblique ochreous line on each side of the disc anteriorly, the elytra each with three small

dense pale ochreous spots—one on the lower margin below the shoulder, one on the fifth interstice

(extending inwards to the second stria in one specimen), and one on the third interstice towards the

apex; the sides of the body beneath with intermixed coarser ochreous scales. Head foveate between

the eyes; rostrum very stout, arcuate, rugosely punctate and tricarinate. Prothorax subconical, broader

than long, finely, rugulosely punctate. LElytra long, finely punctate-striate, the punctures conspicuous,

the interstices flat and closely punctulate. Ventral segments 1 and 2 broadly depressed down the

middle in the ¢. Tarsal claws free.

Length 9, breadth 33 millim. (¢.)

Hab. Mexico, Misantla (/oge).

Two males. A? sexpunctatus is yet another form of A. fasciolatus that seems to

require a separate name, all three inhabiting the Atlantic slope of Mexico, with three

small pale ochreous spots on each elytron (constant in position, but varying in size)

and a very stout, rugose, tricarinate rostrum.

13. Ambates triangularis, sp.n. (Tab. 1X. fig. 25, ¢ .)

Elongate, dull, piceous, the apex of the rostrum and the legs more or less ferruginous ; the prothorax with a

vitta on each side, extending on to the head and rostrum, and a faint median line, and the elytra with

a strongly sinuate, broader, submarginal stripe, which is interrupted or much narrowed at about the

basal fourth, densely clothed with ochreous scales; the elytra with a very large, common, triangular

patch (sometimes narrowly divided along the suture) between the vitte posteriorly, and an oblique

streak exterior to them near the apex, black; the rest of the vestiture of the upper surface sparser,

brownish or ochreous, that of the under surface (a broad space along the middle of the ventral segments

3-5 excepted) dense, whitish and ochreous intermixed. Rostrum strongly arcuate, stout, rugosely

punctate and unicarinate, its apical third smoother. Joints 1 and 2 of the funiculus equal in length.

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, Lebruary 1907. YY

162 RHYNCHOPHORA.

Prothorax a little broader than long, rounded at the sides; densely, finely, rugulosely punctate. lytra

long, finely punctate-striate, the interstices flat and densely punctulate. Ventral segments 1 and 2

broadly depressed down the middle in the ¢.

Length 44-51, breadth 14-2 millim. (¢ @.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Three specimens. Distinguishable by the large triangular black patch between the

broad, sinuous, anteriorly constricted or interrupted, ochreous vitte of the elytra;

the elytra also with a short black streak at the sides towards the apex, as in

A. tetrastigma.

14. Ambates tetrastigma, sp.n. (Tab. IX. figg. 26, 26a, 2.)

Elongate, opaque, piceous, the apex of the rostrum, femora (except at the tip), and tibize ferruginous; thickly

clothed with pale yellowish scales, the prothorax with a darker more sparsely squamose space down the

middle and another on each flank, the elytra with an oblique pyriform spot near the suture at about the

middle, and a short streak exterior to the subapical callosity, black ; the vestiture of the under surface

close at the sides and sparse down the middle. Head shallowly foveate between the eyes; rostrum

strongly arcuate, stout, densely, rugosely punctate and carinate, smoother at the tip; joint 2 of the

funiculus fully as long as 1. Prothorax nearly as long as broad, densely, finely punctate. LElytra long,

obsoletely punctate-striate, the stria becoming distinct towards the suture, sides, and base, the interstices

flat and densely, rugulosely punctulate.

Length 54, breadth 2 millim. (2.)

Hab. Panama, Bugaba (Champion).

One specimen. Easily known by the close pallid vestiture, the two black marks on

each elytron (the one near the suture oblique and pear-shaped), and the partially

obliterated striz.

15. Ambates melanops, sp. n. (Tab. IX. fig. 27, ¢.)

Elongate, shining, black; thickly clothed with minute cinereous or brownish, hair-like scales, the seriate

punctures of the elytra flecked with white, the elytra each with a large, oblique, oval, velvety-black

patch on the disc beyond the middle, bordered posteriorly with white scales ; the vestiture of the under

surface and legs (the ochreous soles of the tarsi excepted) also white, the ventral segments 3 and 4 (and

the depressed portion of 1 in the ¢) almost bare. Rostrum stout, arcuate, rugulosely punctate and feebly

carinate, sparsely punctate at the tip, the apical portion smoother in the 2. Prothorax transverse

rounded at the sides anteriorly, narrowed and constricted in front; densely, finely, confluently pineal

Elytra elongate-triangular, flattened on the disc anteriorly ; with rows of somewhat widely separated

punctures placed in fine shallow striw, the interstices flat and closely punctulate. Ventral segments

1 and 2 broadly depressed down the middle, and the posterior tibiee with a dense fringe of ochreous hairs

along their inner edge from the middle to the apex, in the ¢.

Length 52-83, breadth 2;/)-3g millim. (¢ 9.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Found in abundance in Chiriqui. Near A. cwcus, and with a similar large velvety-

black patch on each elytron beyond the middle (which is not, however, surrounded by

a dense ochreous line), the upper surface shining, the elytra less parallel, the posterior

tibie strongly ciliate in the male. The antenne are inserted beyond the middle of

the rostrum in both sexes.

AMBATES. 163

16. Ambates czecus. (Tab. IX. fig. 28, 2.)

Embates cecus, Chevr. Col. Mex. cent. i. fase. 1, no. 17 (1833) *.

Ambates cesus (sic), Schinh. Gen. Cure. vii. 2, p. 153°.

Hab. Mexico? (ex coll. Flohr), Toxpam and Santacomapan (Sallé), Playa Vicente

(Hoge), Orizaba 1.

Apparently a common insect in the State of Vera Cruz. It is more elongate than the

allied forms with a large, velvety-black, ochreous- or white-edged spot on each elytron ;

the prothorax is very little narrower than the elytra, and has, at most, a faint ochreous

line on each side of the disc; the elytra are here and there flecked with white around

the seriate punctures, and the black spot is more or less pointed near the suture behind.

The male has the first two ventral segments broadly depressed down the middle,

17. Ambates ocellatus, sp.n. (Tab. IX. fig. 29, ¢.)

Ambates ocellatus, Jekel, in litt.

Moderately elongate, dull, black ; the prothorax with a sharply-defined, whitish line on each side, extending

forward on to the head and rostrum, the elytra each with an oblique, transverse, subangular, velvety-

black, ochreous-edged patch on the disc (extending from the first to the sixth stria) midway between the

base and apex; the rest of the vestiture of the upper surface sparser, brownish or ochreous (with a rosy

flush in one specimen), that of the under surface yellowish-white. Rostrum arcuate, very stout, rugosely

punctate and tricarinate. Prothorax broader than long, rounded at the sides, constricted and much

narrowed in front, the sides subparallel at the base ; densely, rugulosely punctate. Elytra much wider

than the prothorax, elongate-triangular, the subapical callosities prominent ; finely punctate-striate, the

interstices flat, rugulosely punctulate, finely granulate at the base, 9 throughout, and 5 and 7 at their

point of termination, narrowly costate. Femoral tooth large. Ventral segments 1 and 2 very deeply

sulcate, and 5 with a small tuft of ochreous hairs in the middle, and the posterior tibie strongly ciliate

on the inner side from the middle to the apex, in the ¢.

Length 53-63, breadth 2;5-23 millim. (¢ @.)

Hab. Mexico (Mus. Brit.: 2), Teapa (H. H. Smith: ¢).

Two males and one female, one only in good condition. More elongate than

A. bisignatus, the dense pallid submarginal line on the prothorax sharply defined, the

elytral striz more finely punctate, the subapical callosities prominent, the ventral

depression of the male very deep and sulciform, the posterior tibize (as in A. poly-

morphus) ciliate within in this sex.

18. Ambates nigronotatus, sp.n. (Tab. IX. fig. 30, ¢.)

Elongate, opaque, black, the antenne (the club excepted) ferruginous; the prothorax with a whitish vitta on

each side, the elytra each with a very large, oblique, dense, brownish-black patch—bordered in front

and behind with whitish scales—on the disc beyond the middle; the rest of the vestiture of the upper

surface brown, intermixed with whitish or ochreous, that of the under surface paler. Rostrum very

stout, arcuate, rugosely punctate and carinate. Prothorax broader than long, densely, rugulosely

punctate. Elytralong, much wider than the prothorax, the interstices flat, rugulosely punctate. Ventral

segments 1 and 2 with a broad, smoother, excavation down the middle.

Length 52, breadth 2 millim. (<¢.)

Hab. Guatemata, Zapote (Champion).

YY 2

164 RHYNCHOPHORA.

One male, somewhat abraded. Near A. ocellatus, but with the black, white-edged

patch more oblique, placed closer to the apex of the elytra, and reaching to near the

suture, the ventral excavation broad and almost smooth, the posterior tibie not ciliate.

The form and position of the black spot also separate A. nigronotatus from A. biguttatus.

19. Ambates biguttatus, sp. n. (Tab. IX. fig. 31, 2.)

Moderately elongate, dull, black or piceous ; the prothorax with a line on each side, extending forward on to

the head and rostrum, and sometimes a line along the lower part of the flanks, ochreous or whitish, the

elytra each with a very large, rounded or oblique, velvety-black spot—bordered all round with ochreous

or whitish scales—on the disc a little beyond the middle; the rest of the vestiture of the upper surface

brownish, that of the under surface paler and rather sparse. Rostrum arcuate, very stout, rugosely

punctate and unicarinate. Prothorax broader than long, subconical, the sides parallel at the base ; finely,

rugulosely punctate, and sometimes obsoletely carinate. Elytra much wider than the prothorax,

elongate-triangular ; finely punctate-striate, the interstices flat, rugulosely punctulate. Ventral segments

1 and 2 broadly excavate down the middle in the ¢.

Var. The black elytral spots larger, heart-shaped, followed by a curved whitish fascia and bordered in front

with a few ochreous scales.

Length 43-71, breadth 17-3 millim. (¢ 2.)

Hab. Muxico, Yolotepec in Oaxaca (Saillé), Playa Vicente (Hége), Teapa (H. H.

Smith); GuateMaa, Sinanja in Vera Paz, Cerro Zunil (Champion).

Nine specimens, the two from Teapa treated as a variety. Less elongate than

A. cecus, the elytra much broader than the prothorax, elongate-triangular, and with

the black spot more rounded. ‘The larger, rounded, elytral spot edged all round with

ochreous, the spot itself placed nearer the apex and more distant from the suture, and

the finely punctured elytral striae, separate A. diguttatus from A. bisignatus. The eye-

like spots on the elytra are very similar to those of Hilipus circuliferus.

20. Ambates pictipennis, sp. n. (Tab. IX. fig. 32, 3.)

Elongate, rather narrow, dull, piceous or rufo-piceous, the legs in great part ferruginous ; the prothorax with

a sharply-defined yellow line on each side, extending forward on to the head and rostrum and backward

on to the base of the elytra, the elytra each with a large, velvety-black, pyriform spot on the disc a little

beyond the middle, followed by an oblique, sinuous, yellow stripe, this latter bordered posteriorly with

black and sometimes connected along the suture with a yellow apical streak ; the rest of the vestiture of

the upper surface sparser, brownish, sometimes with yellow scales intermixed, that of the under surface

dense and whitish. Rostrum arcuate, stout, rugulosely punctate and finely carinate. Prothorax a little

broacer than long, subconical, rounded at the sides posteriorly, densely, rugulosely punctate. Elytra

elongate, finely punctate-striate, the interstices flat and densely punctulate. Ventral segments 1 and 2

excavate down the middle in the ¢.

Length 41-43, breadth 1}-1} millim. (¢ 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Three specimens. Very like the variable A. diguttatus, but with the prothoracic

vitte sharply defined, the black spots on the elytra pyriform and followed by a sinuous,

oblique, yellow stripe, which is sometimes connected with the yellow streak at the

apex, the vestiture of the under surface dense and whitish.

AMBATES., 165

21. Ambates bisignatus. (Tab. IX. figg. 33, 334, ¢ .)

Ambates bisignatus, Chevr. Ann. Sov. Ent. Fr. 1877 > p. 3417.

Hab. Mexico}, Toxpam, Cordova, San Andres Tuxtla (Sallé), Teapa (H. #7.

Smith).

Sent us in some numbers from Teapa. In this insect the subangular velvety-black

spot on each elytron is placed near the suture midway between the base and apex, and

bordered behind with ochreous or whitish scales; the elytra themselves are much

wider than the prothorax, elongate-triangular, finely striate, the striae impressed with

oblong punctures; the prothoracic vitte are sharply defined; the prosternum is densely

clothed with ochreous scales in front of the anterior coxe; the rostrum is exceedingly

stout, rugosely punctate and carinate to the tip. The broad ventral depression of the

male is very shallow.

22, Ambates duplicatus, sp. n. (Tab. IX. fig. 34, 2.)

Moderately elongate, opaque, rufo-piceous, the tibia, tarsi, and antenne (the club excepted) ferruginous ; the

prothorax with a sinuous line on each side of the disc, extending forward on to the head, and another

down the middle, ochreous, the elytra each with a large, oblong-quadrate, velvety-black patch at the

middle of the disc, followed by a transverse yellow spot, the seriate punctures here and there surrounded

by pallid scales; the rest of the vestiture of the upper surface sparser, brownish or ochreous, that of the

under surface whitish, ochreous in front of the anterior coxe. Rostrum arcuate, very stout, rugosely

punctate and tricarinate. Prothorax transverse, rounded at the sides, constricted and much narrowed

in front; densely, rugulosely punctate and feebly carinate. Elytra about one-half wider than the

prothorax, flattened, triangular, the humeri and subapical callosities prominent ; rather deeply punctate-

striate, the interstices flat and densely rugulose. Ventral segments shining, with a broad, sparsely

punctate, almost bare space down the middle.

Length 6, breadth 24 millim. (9.)

_ Hab, Muxico, Cerro de Plumas (Hoge).

One specimen. Larger and broader than A. bisignatus, the black spots larger,

oblong-subquadrate, and each followed by a transverse yellow patch, the prothorax

more rounded at the sides and with a fine, sinuous, ochreous line on each side of

the disc.

23. Ambates exclamationis, sp.n. (Tab. X. figg. 1, 1a, 2.)

Moderately elongate, opaque, nigro-piceous, the antenne and tarsi ferruginous; clothed above with small

dark brown and fulvous scales, the prothorax with an oblique, sharply-defined, whitish line on each side

of the disc; the elytra each with an elongate, velvety-black, somewhat !-shaped mark on the disc beyond

the middle, and a white spot enclosed in the lower portion of this mark and another slightly anterior to

it on the outer margin; the vestiture of the under surface and legs sparse, in part whitish, the prosternum

with a denser white patch in front. Rostrum exceedingly stout, arcuate, rugulosely punctate and finely

carinate, Prothorax broader than long, abruptly narrowed and constricted in front ; densely, rugulosely

punctate. lytra oblong-triangular, much wider than the prothorax; finely punctate-striate, the

interstices flat and rugulosely punctate. Ventral segment 1 depressed down the middle in the 3.

Length 34-4, breadth 14-13 millim. (¢ @.)

Hab. Guatemaa, Zapote, Pacific slope (Champion).

166 | RHYNCHOPHORA.

Six examples. A small species, with albo-bilineate prothorax and a_ black

{-shaped mark on the disc of each elytron, the rounded lower portion of this mark

enclosing a white spot (which extends across the third and fourth interstices), similar

to that on the outer margin.

24, Ambates circumductus, sp.n. (Tab. X. figg. 2, 2a, ?.)

Subovate, opaque, piceous; the prothorax with a faint median line and a narrow vitta on each side, the latter

extending forward on to the head and rostrum, and continued as a narrow curved stripe along the disc

of each elytron to the suture at one-third from the tip (the two stripes here becoming coalescent, and

often extending along the suture to the apex), ochreous or whitish, the elytra also each with a large,

velvety, black or brownish-black, triangular patch in the posterior half of the space enclosed by the pale

lines; the rest of the vestiture of the upper surface sparser, brownish intermixed with ochreous or

cinereous, that of the under surface and legs rather coarse and close, white intermixed with ochreous.

Rostrum strongly arcuate, very stout, rugosely punctate and carinate. Prothorax transverse, sub-

conical, constricted in front ; densely, rugulosely punctate. Elytra subtriangular, finely punctate-striate,

the interstices rugulosely punctate. Ventral segments 1 and 2 shallowly depressed down the middle in

the ¢.

Length 32-43, breadth 2-23 millim. (¢ 2.)

Hab. Panama, David, Caldera, Tolé (Champion).

Not rare in the savana-region of Chiriqui, whence we possess sixteen examples. It

is the only Central-American species with the continuous submarginal ochreous line

on the upper surface extending round to the suture at one-third from the tip and

enclosing a large triangular velvety-black patch at the middle of each elytron. The

vestiture of the under surface is coarse. The elytra are shorter than in A. solani. An

undescribed allied form (A. dorsalis, Jekel, in litt.) occurs in Colombia.

25. Ambates solani, sp.n. (Tab. X. figg. 3, 3a, 33; 4,4, var.)

Moderately elongate, dull, nigro-piceous or piceous, the legs wholly or in part ferruginous; the prothorax

with a faint median line and another on each side, extending on to the head and rostrum, ochreous or

cinereous, the elytra each with a large, oblong, velvety, black or brownish-black, patch on the middle of

the disc near the suture (occupying about the median third), sometimes edged posteriorly with cinereous

scales; the rest of the vestiture of the upper surface in great part brownish, the seriate elytral punctures

usually surrounded by a few whitish scales ; the under surface and legs with scattered, hair-like, whitish

scales, the ante-coxal portion of the prosternum thickly clothed with ochreous or white scales. Rostrum

strongly arcuate, exceedingly stout, laterally compressed, rugosely punctate and tricarinate, broadly

sulcate beneath, Prothorax broader than long, subconical, feebly constricted in front; densely,

rugulosely punctate. Elytra oblong-subtriangular, flattened on the disc, the humeri and subapical

callosities rather prominent ; finely punctate-striate, the interstices rugulosely punctate, the space covered

by the blackish scales smoother and shining. Ventral segments 1 and 2 flattened or slightly depressed

down the middle in the ¢.

Var. The prothorax conical ; the velvety-black patch on each elytron longer and excised on its outer edge.

Length 44-6, breadth 2-22 millim. (¢ Q.)

Hab, Muxico, Teapa (H. H. Smith); Guatema.a, San Gerénimo, San Juan, Tamahu,

Teleman, Panzos, and Sinanja, all in Vera Paz (Champion); Nicaragua, Chontales

(Janson) ; Costa Rica, San José, Arcangeles (Biolley); Panama, Bugaba, Volcan de

Chiriqui, David (Champion).

AMBATES, 167

A common insect in Central America, and found, according to Prof. Biolley, on a

species of Solanum. The variety (three specimens from Chiriqui) is connected by

intermediate forms. The elongate, velvety-black patch on each elytron (occupying

the median third or more of their total length), the exceedingly stout, compressed

rostrum, &c., distinguish this species, which is closely related to A. bisignatus.

26. Ambates ornativentris, sp.n. (Tab. X. fige. 5, 5a, 9 .)

Oblong, broad, opaque, black; the elytra each with a large, elongate, irregular, velvety, black or dark brown,

patch on the dise—extending from about the basal third to near the apex, and interrupted posteriorly,—

edged here and there or on all sides with paler scales; the rest of the vestiture of the upper surface

sparser, brownish or fulvous; the entire flanks of the prothorax, the prosternum, the mesosternum and

side-pieces, the four anterior coxe, and a broad patch at the middle of the basal half of the abdomen,

densely clothed with white scales, the vestiture of the metasternum, the rest of the abdomen, and the

legs in great part fulvous. Rostrum very stout, strongly arcuate, rugosely punctate and carinate.

Prothorax transverse, rounded at the sides anteriorly, constricted and narrowed in front; densely,

rugulosely punctate, obsoletely carinate anteriorly. lytra broad, subtriangular, the humeri and

subapical callosities prominent; finely punctate-striate, the interstices densely rugulose. Ventral

segments 1 and 2 broadly and shallowly depressed down the middle in the ¢.

Length 53-63, breadth 23-3 millim. (¢ 9.)

Hab. Mexico, Toxpam (Sallé), Cerro de Plumas (Hoge); GuatTEMALa, Zapote

(Champion). :

Ten specimens, all but one from Mexico. Broader than A. solani, the elytra with

an irregular spot beyond the elongate patch on the disc, the entire under surface of

the prothorax, the mesosternum, and a large patch on the first two segments of the

abdomen, densely clothed with white scales.

27. Ambates scutiger, sp.n. (Tab. X. figg. 6, 6a, 2.)

Elongate, opaque, nigro-piceous, the antenne (the club excepted), tarsi, and apices of the tibie ferruginous ;

the prothorax with a median line and a vitta on each side, and the head and rostrum, clothed with minute,

hair-like, flavo-cinereous scales ; the elytra with a large, common, triangular, anteriorly evanescent, velvety,

brownish-black patch at the middle of the disc; the rest of the vestiture sparse, flavo-cinereous, that of

the under surface and legs coarser, whitish, dense on the prosternum and along the lower part of the

flanks of the prothorax. Rostrum very stout, strongly arcuate, abruptly depressed at the base and

flattened towards the apex, rugulosely punctate and carinate, smooth at the tip. Antennal club very

large, ovate. Prothorax about as long as broad, narrowed and constricted in front, the sides parallel at

the base ; densely, rugulosely punctate. Elytra elongate, flattened on the anterior portion of the disc, the

subapical callosities prominent ; finely punctate-striate, the interstices densely rugulose. Beneath closely

punctate.

Length 532, breadth 24 millim. ( 9.)

Hab. GUATEMALA, Sinanja in Vera Paz (Champion).

One specimen. The velvety brownish-black patch on the elytra in this species is

shaped very much as in A. circumductus, but the continuous ochreous line exterior to

it is wanting, the lower part of the flanks of the prothorax is densely albo-squamose,

the rostrum is abruptly depressed at the base and bent downwards towards the tip, the

antennal club is larger, and the insect itself is much more elongate,

168 RHYNCHOPHORA.

98. Ambates angustatus, sp.n. (Tab. X. fig. 7, 9.)

Elongate, narrow, opaque, nigro-piceous, the antenne (the club excepted), tarsi, and apices of the tibie

ferruginous ; somewhat thickly clothed with minute flavo-cinereous scales, which are condensed on the

prothorax into an oblique vitta on each side and a faint median line and on the elytra into various

indeterminate patches, the elytra also with an inconspicuous, common, transverse, interrupted, dark

brown median fascia (extending outwards to the fourth stria) ; the vestiture of the under surface rather

coarse, close, and whitish, denser on the flanks of the prothorax. Rostrum evenly arcuate, stout, longer

than the head and prothorax, rugulosely punctate and sharply carinate, the apical third much smoother.

Prothorax as long as broad, parallel-sided, abruptly narrowed and constricted in front; densely,

rugulosely punctate. Elytra long, flattened on the anterior portion of the disc; very finely punctate-

striate, the interstices flat, densely rugulose.

Length 44, breadth 1? millim. ( 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Smaller and more parallel-sided than the Guatemalan A. scutiger,

the rostrum evenly arcuate, the elytra more finely punctate-striate, and with the

common dark dorsal patch reduced to an interrupted transverse streak. ‘The antenne

are inserted at the middle of the rostrum.

29. Ambates apicalis, sp.n. (Tab. X. fig. 8, 2.)

Moderately elongate, opaque, nigro-piccous, the antenne, apices of the tibia, and tarsi ferruginous; the

prothorax with a sharply-defined line on each side of the disc, extending forward on to the head and

backward on to the humeri, and the elytra with a small spot on the fifth interstice before the middle,

and a common, narrow, transverse, subapical fascia, extending down the suture and disc to the apex,

ochreous; the rest of the vestiture of the upper surface very sparse and fine, fuscous and ochreous, that

of the under surface cinereous. Rostrum stout, arcuate, rugulosely punctate and subcarinate. Prothorax

broader than long, rounded at the sides anteriorly, constricted and narrowed in front; densely, rugulosely

punctate. Elytra long, much wider than the prothorax, subparallel in their basal half; finely punctate-

striate, the interstices flat and rugulosely punctate.

Length 34, breadth 13 millim. (2.)

Hab. Panama, Bugaba (Champion).

One specimen. Not unlike the Guatemalan A. exclamationis, but wanting the

elongate velvety-black streak on the disc of each elytron, and with the ochreous scales

clustered into a subapical transverse fascia and some markings at the apex, and a

small spot on the fifth interstice before the middle. 4. buqueti, Faust, from

Venezuela, seems to be an allied form.

30. Ambates vitticollis. (Tab. X. fig. 9, ¢.)

Ambates vitticollis, Jekel, in litt.; Chevr. Bull. Soc. Ent. Fr, 1879, p. cxlix’.

Elongate, dull, black ; the prothorax with a broad vitta on each side, extending forward on to the head and

rostrum, and a narrow median stripe, and the elytra with some irregular, coalescent markings at the

apex, densely clothed with narrow ochreous scales, the rest of the elytral vestiture close and black, that

of the under surface in great part fulvous at the sides and whitish down the middle to as far as the

second ventral suture. Rostrum strongly arcuate, very stout, rather short, rugosely punctate and

carinate, smoother at the tip. Prothorax transverse, rounded at the sides, constricted and narrowed in

front; densely, rugulosely punctate. Elytra long, a little wider than the prothorax; very finely

AMBATES. 169

punctate-striate, the interstices flat and densely punctulate. Ventral segments | and 2 broadly depressed

down the middle in the 3.

Length 43-5, breadth 13-2 millim. (<.)

Hab. Panama, Taboga I. (J. J. Walker).—Cotomata (Mus. Brit.), Honda ?,

Two specimens, precisely similar. The broad ochreous lateral vitta of the prothorax

is very conspicuous in this insect, contrasting with the black vestiture of the elytra,

which is so close as to almost hide the fine strie. ‘The irregular ochreous markings at

the apex, too, are sharply defined. A. vitticollis appears to be distributed in collections

under Jekel’s MS. name; and Chevrolat’s description doubtless applies to the same

species.

31. Ambates albiventris, sp. n. (Tab. X. figg. 10, 10a, ¢.)

Elongate, subfusiform, dull; mottled above with a sparse clothing of small yellowish-white and fuscous scales,

the sides of the prothorax (including the whole of the flanks), an oblique patch at the sides of the elytra

below the base, a spot on each elytron near the apex, and the entire under surface, densely clothed with

coarser, yellowish-white scales. Rostrum arcuate, moderately stout, about as long as the head and

prothorax, rugulosely punctate at the base, and for the rest sparsely, very finely punctate, the antennz

inserted at the middle, joints 1 and 2 of the funiculus comparatively elongate. Prothorax rather convex,

a little broader than long, gradually narrowing from the base, the sides rounded anteriorly ; densely,

rugulosely punctate. Elytra long, gradually narrowing from the base, flattened on the disc anteriorly ;

finely punctate-striate, the interstices flat, densely, rugulosely punctate and subgranulate. Ventral

segments 1 and 2 broadly depressed down the middle. Legs rather long; tibie and tarsi comparatively

slender, the posterior tibie sinuate within.

Length 54, breadth 23 millim. (<¢.)

Hab. Costa Rica, Reventazon, Plains of Santa Clara, Atlantic slope (Biolley).

A single specimen, rather worn, found in Dec. 1904. This insect is nearly related

to A. immaculatus, from Chiriqui. The dense whitish vestiture of the lateral portions

of the prothorax and of the under surface, the oblique whitish patch at the sides of

the elytra beneath, the long rostrum, with the antenne inserted at the middle, and the

two yellowish-white subapical spots, sufficiently distinguish it.

32. Ambates immaculatus, sp.n. (Tab. X. figg. 11, lla, 2.)

Elongate, dull, black, the antenne (the club excepted) ferruginous, the tarsi piceous or rufescent ; uniformly

clothed above with minute, cinereous, hair-like scales; the vestiture of the under surface, femora, and

tibize coarser and closer, wholly white, that of the tarsi ochreous, the ventral segments 3 and 4 in the 9

and 3-5 in the ¢ with a narrow bare space down the middle. Rostrum arcuate, moderately stout,

rugulosely punctate (and in one specimen carinate) at the base, for the rest sparsely, minutely punctate, the

antenne inserted at ( ¢) or behind ( ? ) the middle, joint 2 of the funiculus shorter than 1. Prothorax

broader than long, gradually narrowing from the base, constricted in front; densely, rugulosely punctate

and with indications of a raised median line. FElytra elongate, a little wider than the prothorax,

depressed on the disc anteriorly, with prominent subapical callosities ; finely punctate-striate, the

interstices flat, densely, rugulosely punctate and subgranulate. Ventral segments 1 and 2 broadly

depressed down the middle, and 5 with a shallow smooth fovea near the apex, in the ¢.

Length 53-64, breadth 23-22 millim. (¢ 9.)

Hab. Panama, Bugaba (Champion). .

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1907. ZZ,

170 RHYNCHOPHORA.

Three specimens. Near A. albiventris, but with the vestiture of the upper surface

uniformly cinereous and that of the under surface much sparser and finer. Duller

and more rugose than A. melanops and wanting the black spots on the elytra. The

antenne are inserted at about the middle of the rostrum.

33. Ambates cleroides, sp. n. (Tab. X. figg. 12, 12a, ¢.)

Somewhat fusiform, black, the antenne, the rostrum in part, the basal third or fourth of the elytra, and the

legs, ferruginous ; the vestiture fine: ochreous and dense between the eyes, white on the apical half of

the rostrum, legs, and under surface (the ventral segments 3-5 almost bare); the prothorax with the

anterior half black and the basal half ochreous; the elytra each with an arcuate, transverse fascia at

about the middle (reaching inward to the first stria) and a common, large, apical spot ochreous, the broad

intervening space velvety-black, the basal portion rust-red, the basal margin itself whitish and a narrow

space in front of the curved fascia blackish. Head flattened between the eyes, deeply sunk into the

prothorax, densely, finely punctate; rostrum strongly arcuate, stout, as long as the head and prothorax,

closely punctate, carinate down the centre, the antenne inserted at a little beyond the middle, joints 1

and 2 of the funiculus equal in length. Prothorax broader than long, transversely convex, constricted

near the apex, the subapical groove sharply-defined beneath, the sides much rounded anteriorly and

parallel behind; densely, very finely punctate. Elytra moderately long, triangular, flattened on the

disc ; finely punctate-striate, the interstices flat, densely, rugulosely punctate, 7 and 8 finely costate for

some distance below the base. Ventral segment 1 very broadly depressed down the middle. Femora

strongly dentate.

Length 53-53, breadth 22-23 millim. (<¢.)

Hab. Panama, David, Bugaba (Champion).

Five specimens, probably all males. A remarkable insect, having the general

appearance of a Clerid. The transversely convex prothorax, the flattened, triangular,

sharply fasciate elytra, and the ochreous frons, give it a very distinct facies from any

of the other species of Ambates here enumerated.

PTERACANTHUS.

Pteracanthus, Schéuherr, Gen. Cure. vii. 2, p. 156 (1843); Lacordaire, Gen. Col. vi. p. 514.

This genus is based upon a single species from Tropical America, recognizable at a

glance by the very long projecting humeral and subapical spines of the elytra, the non-

sulcate prosternum, the contiguous anterior coxe, and the sharply dentate femora.

Some of the forms here placed under Peridinetus are very like it, but they want the

elytral spines, and have the prosternum sulcate and the anterior coxe separated by a

narrow space.

1. Pteracanthus smidti. (Tab. X. fig. 13, ¢.)

Rhynchenus smidtii, Fabr. Syst. Eleuth. 11. p. 480 *.

Pteracanthus smidiii, Boh. in Schonh. Gen. Cure. vii. 2, p. 157°; Lacord. Gen. Col. vi. p. 514°.

Hab. Panama, Bugaba (Champion).—Soutu America! 2, Cayenne 3.

We have a single specimen ( ¢ ) of this remarkable insect from Chiriqui. It has the

first ventral segment depressed down the middle, and the antenne inserted slightly

behind the middle of the rostrum.

PSEUDAMBATES.—PERIDINETUS. 171

PSEUDAMBATES, nom. n.

Pseudocholus, Desbrochers, Ann. Soc. Ent. Belg. 1. p. 866 (nota) (Nov. 1906) (nec Lacordaire, 1866).

The type of this genus, Ps. biplagiatus, Desbr., from Costa Rica, is related to

Ambates, mainly differing from it in the short-ovate, acuminate, antennal club, the

wider scutellum, the more produced posterior angles of the second ventral segment,

and the broad, rhomboidal, robust form of the body. The general coloration is very

like that of Ambates cretifer, Pasc., and its allies. The mesothoracic epimera are

greatly developed and ascending (a Barid-character separating Pseudambates from the

Cholina), and the anterior coxe are almost contiguous.

The generic name Pseudocholus is preoccupied in Rhynchophora, and must therefore

be changed.

1. Pseudambates biplagiatus. (Tab. IX. figg. 10, 10a, 2.)

Pseudocholus biplagiatus, Desbr. Ann. Soc. Ent. Belg. 1. p. 366°.

Subrhomboidal, broad, robust, shining, black; the prothorax with the flanks and under surface, the elytra

each with a broad, oblique, curved fascia extending around the humeral callus from the base and a broad

transverse fascia near the apex (almost reaching the suture), the metasternum, and the ventral surface

in part (the outer portions of the second segment only in the ¢), densely clothed with white or pale

ochreous scales, the legs with fine whitish hair-like scales, the rest of the surface almost bare. Head

closely punctate, foveate between the eyes; rostrum stout, strongly arcuate, about as long as the

head and prothorax, closely punctate, a little smoother in the 2; joints 1 and 2 of the funiculus equal

in length. Prothorax rather convex, broader than long, conical, rapidly narrowed from near the base,

the sides a little rounded behind; closely, finely punctate, with indications of a narrow smooth median

line. LElytra broad, subtriangular, flattened on the disc anteriorly, the humeri obliquely truncated in

front ; finely punctate-striate, the interstices closely, minutely punctate, flat, the alternate ones feebly

costate at the apex. Ventral segments 1 and 2 broadly depressed down the middle in the ¢.

Length 83-84, breadth 43 millim. (¢ 9.)

Hab. Costa Rica, Reventazon (Biolley), San Carlos! (ex. coll. Schild-Burgdorf ).

We have received two specimens of this species.

Sect. PERIDINETIDES.

Péridinétides, Lacordaire.

Lacordaire included two Tropical-American genera in this section, one of which

(Peridinetus) is well represented within our limits, the other (Megops, Schénh.)

inhabiting Brazil.

PERIDINETUS.

Peridinetus, Schonherr, Gen. Cure. iv. p. 467 (1837), viii. 2, p. 56 (1844) ; Lacordaire, Gen. Col.

vii. p. 210; Chevrolat, Ann. Soc. Ent. Belg. xxvi. p. 79 (1883) (part.); Jekel, Ann. Soc. Ent.

Belg. xxvi. p. 84. .

This genus, which is well represented within our limits, is closely related to Ambates,

mainly differing from it in the sulcate prosternum, the non-contiguous anterior coxe,

and the less rapidly descending scrobes. The antenne in the Central-American forms

ZZ 2

172 RHYNCHOPHORA.

(except in P. trifasciatus and P. quadrimaculatus) are inserted at the middle of the

rostrum in both sexes; the metasternum is sometimes protuberant between the middle

cox (P. canus and P. cretaceus) ; the femora are sharply dentate ; and the tarsal claws

are almost contiguous at the base. The males usually have the first one or two ventr al

segments depressed down the middle, and in one species (P. guadrimaculatus) the

posterior tibie are strongly bisinuate in this sex. The smaller forms approach

Pteracanthus.

Metasternum more or less protuberant between the middle coxe.

Prothorax and elytra uniformly clothed with small, hair-like, white or cinereous

scales ; the elytra with the apical portion of the suture, and an oblique patch

on the outer part of the disc, bare . . . Species 1.

Prothorax and elytra with large chalky-white patches on “each ‘side, extending

downward on to the lower surface . . . . «© 1. ee ee © e « 6) 6Species 2.

Metasternum flattened between the middle coxe.

Antenne (except in P. trifasciatus) inserted at about the middle of the rostrum

in both sexes.

Prothorax and elytra each with a large chalky-white lateral patch extending

downward on to the under surface . . . . © 2. 2 we . . Species 3.

Prothorax immaculate ; elytra with white marks or fascie extending down-

; ward on to the under surface . . . . . os ew ee . . Species 4-6.

Prothorax and elytra mottled with white and fulvous, their lateral portions

white, like the under surface . . . . . . se ew ee . Species 7.

Prothorax and elytra opaque; the prothorax with an oblique yellowish- white

stripe on each side, the two stripes coalescent at the apex; the elytra

uneven, mottled on the disc with fulvous and black. . . . . . . . Species 8.

Prothorax with the anterior portion, and the head in front, carmine-red ; elytra

with the apex spotted or bare. . . . 2... a . . . Species 9, 10.

Prothorax only with the anterior portion carmine-red ; elytra with a large

black patch at the base enclosing two white spots, the apex immaculate . Species 11.

Prothorax and elytra variegated with ochreous, white, and black; the prothorax

nodose and bifoveolate on the disc anteriorly. . . . ...... Species 12.

Prothorax and elytra faintly mottled with ochreous and white, opaque; the

prothorax nodose on each side. . ss 6 2s 0 Species 13.

Prothorax with three interrupted lines, and the elytra with a common sub-

apical fascia, ochreous ; the elytral interstices interruptedly costate . . Species 14.

Prothorax ochreo-vittate on each side; elytra each with one or two spots on

the fourth interstice, and a lateral patch extending downward on to the

metasternum, white . se ee ew ew ww ee 6Species 15.

Antenne (¢') inserted near the apex of the rostrum ; prothorax conical; elytra

each with two black spots; posterior tibie (¢) strongly bisinuate Species 16.

1. Peridinetus canus, sp.n. (Tab. X. figg. 14, 14a, ¢ )

Oblong-rhomboidal, shining, black; thickly clothed above and beneath with minute, hair-like, white or

cinereous scales, with the following parts almost bare: the head (except around the eyes), a space down

PERIDINETUS. 173

the middle of the prothorax, the humeri, the apical third or more of the suture, a sharply-defined oblong

oblique patch on the outer part of each elytron near the apex, and a broad space down the middle of the

abdomen ; the tarsi with ochreous hairs beneath. Head sparsely, finely punctate, deeply suleate between

the eyes; rostrum very stout, feebly arcuate, sparsely, minutely punctate (except along the middle),

smoother in the 2; joints 1 and 2 of the funiculus elongate, equal in length; antennal club long,

acuminate-ovate. Prothorax conical, closely, finely punctate, with indications of a smooth raised median

line. Elytra much wider than the prothorax, elongate-triangular ; with rows of oblong punctures

placed in fine strie, the interstices closely punctate, flat, 2 and 4 narrowly costate at the apex. Meta-

sternum and abdomen, except at the sides, very sparsely, finely punctate; ventral segment 1 broadly

depressed down the middle in the ¢ ; metasternum binodose between the middle coxa, its anterior face

vertical.

Length 62-93, breadth 24-43 millim. (¢ 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

A common insect in the forest-region of Chiriqui. Nearly related to P. cretaceus,

but wanting the chalky-white patches above and beneath, the vestiture close, fine, and

uniform, cinereous or white, the elytra with the apical third or more of the suture

and an oblique lateral patch near the tip bare. The metasternum is similarly formed

in the two species. P. canus bears a superficial resemblance to Ambates melanops and

inhabits the same region.

2. Peridinetus cretaceus. (Tab. X. figg. 15, 15a, 3.)

Peridinetus cretaceus, Pasc. Ann. & Mag. Nat. Hist. (5) v. p. 181 (1880) '; Jekel, Ann. Soc. Ent.

Belg. xxvi. p. 86°.

Peridinetus luctuosus, Chevr. Ann. Soc. Ent. Belg. xxvi. p. 82 (1882) °.

Hab. Nicaraaua (Sallé?), Chontales!? (Belt, Janson); Costa Rica, Guaitil de

Pirris, San Carlos (Biolley), Azahar de Cartago, Savanillas de Pirris (Underwood),

Cariblanco (Lankester), Caché (Rogers).—Co.omsia, Buenaventura (coll. Fry).

The dense chalky-white patches in this insect are six in number :—one on each side

of the prothorax, extending downward over the whole of the flanks; one at about the

middle of each elytron, oblique, extending downward on to the lateral portion of

the metasternum; and one on each elytron at the apex. The male has the first two

ventral segments very broadly excavate down the middle. ‘The first joint of the

funiculus is longer than the second. The metasternum is somewhat protuberant

between the middle coxe, its anterior face vertical.

3. Peridinetus distinctus. (Tab. X. fig. 16, ¢.)

Peridinetus distinctus, Pasc. Ann. & Mag. Nat. Hist. (5) vi. p. 180’; Chevr. Ann. Soc. Ent. Belg.

xxvi. p. 827.

Peridinetus linnei, Jekel, in litt.’.

Peridinetus niveopictus, Chevr. in litt.*.

Hab. Mexico!?, Santacomapan, Toxpam (Sallé), Teapa (Hoge, H. H. Smith);

British Honpuras, Rio Sarstoon (Blancaneaux); GuaTeMaLa, San Geronimo, Panima,

174 RHYNCHOPHORA.

Purula, San Juan, Senahu, and Cubilguitz in Vera Paz, El Tumbador, Las Mercedes,

Zapote, Capetillo (Champion).

Not rare on the Atlantic and Pacific slopes of Guatemala, and also found on the

Atlantic slope of Mexico. Less elongate than P. cretaceus, and wanting the chalky-

white apical patch on each elytron, the metasternum not protuberant between the

middle cox. ‘The male has the first ventral segment broadly excavate, and the fifth

shallowly depressed, down the middle. The first joint of the funiculus is much longer

than the second.

4. Peridinetus trifasciatus, sp.n. (Tab. X. figg. 17,17, 6.)

Oblong-rhomboidal, shining, black, the legs (the knees excepted) in great part ferruginous; the base of the

rostrum, the head, the sides of the prothorax, and the upper half of the mesothoracic epimera, sparsely

clothed with minute, hair-like, fulvous scales; the elytra with three broad, transverse, dense fascize

of small, oval, pure white scales—one before the middle, extending obliquely forward at the sides and

continued over the whole of the lateral portion of the metasternum, one beyond the middle, and one at

the apex, the last two very narrowly separated,—the rest of their upper surface with a few hair-like

scales similar to those on the prothorax; the ventral segments 2-4 with a spot on each side, and the

apical half of 5, and the legs also, clothed with white scales. Head minutely punctate, deeply sulcate

between the eyes; rostrum very stout, arcuate, slightly longer than the prothorax, sparsely, minutely

punctate, the antenne inserted at a little beyond the middle, joint 2 of the funiculus fully as long as 1,

the club rather long, acuminate-ovate. Prothorax conical, slightly broader than long, constricted at

the sides in front; sparsely, minutely punctate. Elytra elongate-triangular ; finely punctate-striate, the

interstices flat, closely, minutely punctate, the bare spaces almost smooth. Metasternum depressed

between the middle coxe. Ventral segments 1 and 2 broadly depressed down the middle. Posterior

tibie strongly sinuate.

Length 83, breadth 33 millim, (¢.)

Hab. Panama, Chiriqui (coll. Fry).

One male, probably found by Trétsch. The three broad, dense, pure white, narrowly

separated, transverse fasciee of the elytra, the deeply sulcate frons, &c., readily distin-

guish P. trifasciatus.

5. Peridinetus melastome, sp.n. (Tab. X. figg. 18, 18a, 3.)

Oblong-rhomboidal, shining, nigro-piceous or piceous (the rostrum, antenna, and legs, in part, ferruginous in

one specimen) ; the elytra with a space along their lower margin, the apex, a faint transverse subapical

fascia, and an oblique, evanescent fascia on the disc at about the middle, the metasternum (densely), a

spot on each side of the ventral segments 2-5, and the legs in part, clothed with small pure white scales ;

the rest of the upper surface and legs, the flanks of the prothorax, and the mesothoracic side-pieces, with

narrow, hair-like, ochreous scales, the rest of the ventral segments almost bare. Head minutely punctate,

deeply sulcate between the eyes; rostrum strongly arcuate, stout, sparsely, minutely punctate; joints

1 and 2 of the funiculus equal in length. Prothorax conical, closely, finely punctate, with indications of

a smooth raised median line. Elytra elongate-triangular, obliquely depressed on the disc below the base

and at the sides beyond the middle; finely punctate-striate, the interstices almost fiat and closely

punctulate, 3 narrowly costate near the apex. Ventral segment 1 depressed down the middle posteriorly,

and the posterior tibia sinuate, in the ¢.

Length 62-9, breadth 3-4 millim. (¢ 2.)

Hab. Costa Rica, Arcangeles 1500 metres (Biolley).

PERIDINETUS. 175

Two specimens, assumed to be male and female, one having the posterior tibie more

sinuate than the other. Found in Dec. 1898, upon a species of Melastomacee,

according to Prof. Biolley. The ground-colour, at first sight, appears to be olivaceous,

and the vestiture of the faint, evanescent, elytral fascize bluish-white. ‘The much

sparser and finer vestiture of the fascize and the closely punctured, less constricted

prothorax separate P. melastome from P. trifasciatus.

6. Peridinetus lateralis, sp.n. (Tab. X. fig. 19,194, 3.)

Elongate, subfusiform, shining, piceous, the head, rostrum, antenne, mesothoracic epimera, and legs more or

less ferruginous; the elytra with a space along their lower margin, the apex, a narrow, interrupted,

subapical fascia, and various small scattered patches between this and the basal third, the metasternum

(densely), the ventral segments 2 and 5 in part, a space down the middle of 1, and a spot on each side of

3 and 4, and the outer half of the posterior femora, clothed with small, oval, pure white scales ; the rest

of the upper surface, the flanks of the prothorax, and the mesothoracic epimera, with scattered, minute,

hair-like, fulvous scales. Head dull, minutely punctate, narrowly sulcate between the eyes ; rostrum

arcuate, stout, very sparsely, finely punctate; joints 1 and 2 of the funiculus equal in length. Prothorax

conical, constricted at the sides in front; closely, finely punctate, with indications of a smooth, raised

median line. Elytra elongate-triangular, obliquely depressed on the disc below the base; finely punctate-

striate, the interstices almost flat, minutely punctulate, 3 narrowly costate near the apex. Ventral

segments with the bare spaces smooth, 1 depressed down the middle.

Length 74, breadth 3,5 millim. (¢.)

Hab. Panama, Volcan de Chiriqui 8000 feet (Champion).

One specimen, found in the bamboo-thickets high up on the Pacific slope of the

Volcan de Chiriqui. More elongate than P. irroratus, the vestiture of the prothorax

and of the base of the elytra very fine and uniformly fulvous, the apical two-thirds only

of the latter mottled with patches of coarser white scales above. The elytra are

rather narrower at the base than in P. trifasciatus and P. melastome, and the frontal

sulcus is shallower and less extended. P. zinckeni, Ros., is another allied form.

7. Peridinetus irroratus. (Tab. X. figg. 20, 20a, ¢.)

Curculio irroratus, Fabr. Mant. Ins. i. p. 106°; Ent. Syst. i. p. 429°.

Rhynchenus irroratus, Fabr. Syst. Eleuth. ii. p. 467 °.

Peridinetus irroratus, Ros. in Schéuh. Gen. Cure. iv. p. 468‘; Chevr. Ann. Soc. Ent. Belg. xxvi.

79°.

Var. Peridinetus (Rhinobatus) marmoratus [marmoreus}] (Dej.), Chevr. loc. cit.*.

Hab. Nicaragua, Chontales (Belt); Costa Rica, San José, Chirripo, Turrialba, La

Laguna, Carrillo (Biolley), Azahar de Cartago, Savanillas de Pirris (Underwood) ;

Panama (Boucard), Chiriqui (Ribbe), Bugaba, Volcan de Chiriqui (Champion).—Soutu

America, Cayenne! , Brazil+, Para®.

A common insect in Costa Rica and found, according to Prof. Biolley, on a species

of Piper. In fresh examples the interspaces between the white patches on the dorsal

surface of the head, prothorax, and elytra are thickly clothed with minute hair-like

176 RHYNCHOPHORA.

fulvous scales. The male has the fifth ventral segment slightly depressed in the middle

and the intermediate tibie excavate on the inner side near the apex. ‘The var. marmo-

ratus appears to be based on partially abraded examples.

8. Peridinetus collaris, sp.n. (Tab. X. figg. 21, 21a, ¢.)

Subovate, robust, opaque, black, the tarsi ferruginous ; the vestiture very fine, in great part fulvous, rather close

on the head and prothorax, and sparse on the rest of the surface; the prothorax with a broad, oblique, dense,

pale ochreous band on each side, extending downward on to the flanks posteriorly (not reaching the hind

angles, as seen from above), and continued on to the mesothoracic epimera, the two bands becoming

coalescent at the apex (in one specimen continued on to the vertex); the elytra mottled with black across

the middle and towards the apex; the legs and ventral surface with scattered intermixed fulvous and

white, hair-like scales, the tarsi with ochreous hairs. Head sulcate between the eyes; rostrum very

stout, feebly arcuate, not longer than the prothorax, finely, very sparsely punctate; joint 1 of the

funiculus much longer than 2. Prothorax broader than long, convex, rounded at the sides, abruptly

narrowed in front, strongly bisinuate at the base; closely, minutely punctate. Elytra moderately long,

broad, triangular, transversely depressed before and beyond the middle, the intervening portions of the

interstices 3 and 5 somewhat swollen; finely punctate-striate, the interstices closely punctulate, flat,

9 faintly, narrowly costate. Ventral segments sparsely punctate; 1 excavate down the middle pos-

teriorly, and 5 also depressed at the apex and with its apical margin emarginate, in the ¢.

Length 8, breadth 32 millim. (<¢.)

Hab. Mexico, Toxpam (Sal/é), Cerro de Plumas (Hége).

Two specimens. The uneven elytra, the anteriorly coalescent, downwardly-directed,

dense ochreous lateral bands on the prothorax, &c., distinguish P. collaris.

9. Peridinetus coccineifrons, sp.n. (Tab. X. figg. 22, 22a, ¢.)

Hilongate, shining, black, the antennal scape and the legs in great part (the anterior femora excepted)

ferruginous ; clothed with small hair-like scales: the head and the anterior lobe of the prothorax

carmine-red, the sides of the metasternum with a broad oblique ochreous patch; the rest of the

vestiture sparse, white along the middle and sides of the posterior lobe of the prothorax; at the base

of the third interstice and at the apex of the elytra (where it is condensed into a narrow stripe on the

third interstice), and at the sides of the abdomen, and brownish or ochreous elsewhere, that of the legs

ochreous and white intermixed, the elytra each with an apical spot and the base almost bare. Head

shallowly sulcate between the eyes ; rostrum very stout, feebly arcuate, depressed at the base, not longer

than the prothorax, almost smooth ; joint 1 of the funiculus longer than 2. Prothorax nearly as long as

broad, subconical, the short anterior lobe narrower and tubulate; closely, minutely punctate, with indica-

tions of a smooth median line. Elytra much wider than the prothorax, elongate-triangular, each obliquely

depressed on the disc below the base; finely punctate-striate, the interstices rugulose, becoming narrowly

costate towards the apex. Ventral segments closely punctate and squamose at the sides only, for the

rest bare and very sparsely punctured, 1 broadly flattened down the middle in the ¢.

Length 53-54, breadth 23 millim. (¢ 2.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Two specimens, one somewhat immature. Amongst the species with the vestiture

of the head and anterior portion of the prothorax carmine-red, the present insect is

easily recognizable by its elongate shape and the costate apical interstices of the elytra.

P. coccineifrons has the general facies (except that the elytral spines are wanting) and

coloration of Pteracanthus smidti.

PERIDINETUS. 177

10. Peridinetus rufotorquatus, sp.n. (Tab. X. figg, 23, 23 a, ¢.)

Subovate, rather shining, black or piceous, the prothorax with a brassy lustre, the antenne, tibiw, and tarsi,

and sometimes the apex of the prothorax also, ferruginous; the anterior portion of the head and the

anterior lobe of the prothorax (except in the middle behind) thickly clothed with hair-like, carmine-red

scales, the base of the rostrum, vertex, and a narrow space down the middle of the posterior lobe of the

prothorax, and another along each lateral margin, with ochreous or white hair-like scales ; the elytra—

a narrow transverse scutellar patch, the humeri, and a sharply-defined transverse space at the apex

excepted—closely set with very small, seriately-arranged, oval, brownish-ochreous scales, the second stria

with a short white streak at the base ; the vestiture of the under surface very sparse, in great part white on

the metasternum. Head shallowly sulcate between the eyes; rostrum arcuate, depressed at the base, very

sparsely, minutely punctate, smoother in the 25; joint 1 of the funiculus longer than 2. Prothorax

nearly as long as broad, conical ; the anterior lobe closely punctate, somewhat swollen on each side of the

short, arcuate, prominent, median carina; the posterior lobe almost bare, transversely depressed in front,

with a few scattered transverse punctures. Elytra comparatively broad, subtriangular, flattened, trans—

versely depressed at the apex and obliquely so on the disc below the base; finely punctate-striate, the

interstices (except at the apex) almost flat and densely punctulate. Ventral segments very sparsely

punctate, 2-4 almost smooth.

Length 3-4, breadth 12-2 millim. (¢ 2.)

Hab. Mexico, Teapa (H. H. Smith); Guatremata, Chacoj and San Juan in Vera Paz

(Champion).

Fourteen specimens. Smaller and less elongate than P. coccineifrons ; the posterior

lobe of the prothorax much smoother than the anterior lobe and almost bare, the

anterior lobe arcuato-carinate ; the elytra with a sharply-defined, almost bare, depressed

space at the apex, the interstices each with three or four rows of minute oval scales

and not costate; the metasternum without ochreous lateral patch.

If the sexes are rightly identified, the male is without definite ventral depression.

11. Peridinetus letus, sp.n. (Tab. X. figg. 24, 24a, 9.)

Subovate, black, the antenne, apex of the rostrum, head, and tibie more or less ferruginous ; the vestiture

fine and close, that on the head and base of the rostrum sparser, fulvous or ochreous: the anterior

portion of the prothorax carmine-red, the posterior portion black; the elytra with a broad, transverse,

posteriorly rounded space at the base (extending outward to the sixth stria), enclosing a white spot on

each side of the scutellum, and a patch at the sides below the humeri, black, the remaining portion

ochreous, the alternate interstices faintly lineate with white towards the apex; the legs and under

surface with scattered narrow whitish scales, the second ventral segment almost bare. Rostrum arcuate,

stout, not longer than the prothorax, finely, sparsely punctate and feebly carinate, smoother in the Q.

Joints 1 and 2 of the funiculus subequal in length. Prothorax transverse, the short anterior lobe narrow

and tubulate, the posterior lobe transversely convex ; closely, minutely punctate, and subcarinate. Elytra

much wider than the prothorax, triangular, flattened on the disc; finely punctate-striate, the interstices

almost flat, densely punctulate, 7 throughout, and 9 from about the middle onward, feebly, narrowly

costate. Ventral segments 1 and 2 depressed down the middle in the ¢.

Length 41, breadth 2 millim. (¢ Q.)

Hab. Paxama, Bugaba (Champion).

Two specimens. Near P. rufotorquatus, but with the prothorax differently shaped ;

the elytra with a large black patch at the base (enclosing two white spots), the bare

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1907. 2 AA

178 RHYNCHOPHORA.

apical patch wanting, and the seventh interstice narrowly costate throughout. There

is a very closely allied unnamed form from Peru in the Fry collection.

12. Peridinetus nodicollis, sp. n. (Tab. 1X. figg. 25, 25a.)

Subovate, shining, black, the rostrum, antenne, meso- and metathoracic side-pieces, legs (the anterior and

intermediate femora excepted), and the sides of the elytra at about the middle, ferruginous ; the head in

front, the prothorax with two oblique lines on each side posteriorly, and the anterior lobe, clothed with

narrow, intermixed, ochreous and white scales, the prothorax also with a dense cluster of short, erect,

ochreous scales, enclosing a black spot, on each side of the disc before the middle ; the elytra with a

broad space across the centre, extending forward along the sutural region to the base, variegated with

ochreous, white, and black scales (the black scales clustered into an oblong spot on the second interstice,

and a transverse streak below it across the interstices 3-6), the rest of their surface almost bare ; the meta-

sternum (the ochreous episterna excepted), and an annulus near the apex of the hind femora, with white

scales. Head minutely punctate, shallowly sulcate between the eyes and foveate on the vertex ; rostrum

stout, arcuate, finely punctate at the base ; joints 1 and 2 of the funiculus subequal in length. Prothorax

transverse, abruptly narrowed and strongly constricted in front, the sides parallel at the base; the

posterior lobe somewhat gibbous in the middle anteriorly and depressed on each side of this, the median

trilobate space smooth and bare; the flanks somewhat hollowed and with a few coarse scattered pune-

tures. Elytra triangular, with the humeri and subapical callosities rather prominent; finely punctate-

striate, the interstices punctulate (except at the tip), 2 costate at the apex. Ventral segments almost

smooth, squamose along their outer margin only.

Length 34-32, breadth 13-14 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Two specimens, probably male and female. Not unlike the S.-American P. sellatus,

Boh., but narrower and less robust, the elytra triangular, the prothorax gibbous on

the disc anteriorly and with a smooth trilobate space in the middle, the markings very

different, &c. P. nodicollis has the general facies of a Conotrachelus. The prothorax

appears to be margined at the sides, as seen from above.

13. Peridinetus opacus, sp.n. (Tab. X. fig. 26.)

Oblong, opaque, nigro-piceous or piceous, the antenne and tarsi ferruginous; sparsely clothed with very

minute, hair-like, ochreous and white scales, which on the prothorax and elytra are clustered into small

scattered patches, the vestiture of the head and prothorax entirely ochreous, that of the elytra partly

white. Rostrum arcuate, very stout, sparsely, finely punctate, obsoletely carinate at the base. Joint 2

of the funiculus shorter than 1. Prothorax transverse, strongly constricted and abruptly narrowed in

front, the sides parallel behind ; closely, finely punctate. Elytra much wider than the prothorax,

narrowing from the base ; finely punctate-striate, the interstices densely punctulate, the alternate ones

narrowly costate at the apex. Beneath very sparsely punctate.

Length 34, breadth 12 millim. (9?)

flab. Panama, Volcan de Chiriqui (Champion).

Two specimens. In this insect the upper surface is opaque, and clothed with small

scattered patches of minute, ochreous and white, hair-like scales; and the prothorax is

so abruptly narrowed anteriorly as to appear nodose on each side. P. opacus is perhaps

“most nearly allied to P. nodicollis, though very dissimilar in appearance. It might

easily be mistaken for a small Cryptorrhynchid. ;

PERIDINETUS. 179

14. Peridinetus costatus, sp. n. (Tab. X. figg. 27, 27 a.)

Oblong ovate, piceous, the antenna, tibie, and tarsi ferruginous; the head, an interrupted vitta on each side

of the prothorax, as well as a faint median line, and a common, transverse, fascia on the disc of the

elytra at about one-third from the apex, clothed with small, hair-like, ochreous scales, the rest of

the vestiture very sparse and fine, white intermixed with ochreous, that on the prothorax wholly

ochreous. Head sulceate between the eyes; rostrum shining, stout, arcuate, very sparsely, minutely

punctate ; joint 2 of the funiculus shorter than 1. Prothorax rather convex, broader than long, con-

stricted and much narrowed in front, the sides parallel at the base ; densely, confluently punctate. Elytra

moderately long, subtriangular, transversely depressed on the disc below the base; finely punctate-striate,

the interstices rugulose, the alternate ones strongly, interruptedly costate, 2, 4, and 6 also sharply costate

on the apical declivity. Ventral segments rather closely punctate.

Length 34-4, breadth 13-12 millim. (¢?)

Hab. Mexico (Hége, in coll. Solari); GuatemaLa, Zapote (Champion).

Two specimens. Near P. opacus, the prothorax more rounded at the sides,

the elytra sharply ochreo-fasciate on the disc beyond the middle, transversely

depressed below the base, and with all the interstices interruptedly costate, the

short ridge near the base of the third very prominent. /P. costatus has the facies of

a Conotrachelus.

15. Peridinetus stigmatipleura, sp. n. (Tab. X. fig. 28.)

Oblong, piceous or brown, the antenne, tibie, and tarsi, the base of the femora, and sometimes the head and

rostrum also, ferruginous or reddish; somewhat sparsely clothed with very fine, hair-like, ochreous

scales, the prothorax with a denser, posteriorly evanescent, ochreous vitta on each side, the vitte with

intermixed coarser white scales towards the anterior margin; the elytra each with two chalky-white

spots on the fourth interstice—one before and one beyond the middle (the posterior one often larger and

extending inwards across the third interstice, the anterior one sometimes wanting)—and a large dense

chalky-white patch at the sides below the shoulder, this latter extending downward on to the sides of the

metasternum; the vestiture of the abdomen very sparse and whitish, becoming denser along the sides.

Rostrum very stout, arcuate, cylindrical, a little longer than the prothorax, finely, shallowly, very sparsely

punctate in the g,smoother inthe 2. Prothorax transversely rounded at the sides anteriorly, constricted

and narrowed in front; finely, rugulosely punctate. Elytra wider than the prothorax, oblong-

subtriangular ; finely punctate-striate, the interstices rugulose, becoming narrowly costate at the apex.

Ventral segments very sparsely punctate, unimpressed.

Length 3-4,1, breadth 14-14 millim. (¢ 2.)

10?

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Numerous specimens. ‘This species has a large, transverse, dense, chalky-white

patch at the sides of the body beneath and two small white spots on the fourth inter-

stice of each elytron. ‘The ochreous vitte on the prothorax sometimes have intermixed

white scales towards the apex. The sexual differences are slight, if I have rightly

identified the male and female.

16. Peridinetus quadrimaculatus, sp. n. (Tab. X. figg. 29, 29a, 3.)

Elongate, opaque above, rufo-piceous, the antenne (the club excepted) and legs ferruginous ; somewhat thickly

clothed with very minute, hair-like, fulvous scales (which are partly hidden by a similarly-coloured exuda-

2AA 2

180 RHYNCHOPHORA.

tion), the elytra each with two velvety-black spots—one, oblique, rather large, at the middle of the disc, the

other small, on the subapical callosity ; the vestiture of the under surface sparser, the abdomen with the

sides only squamose. Rostrum very stout, curved, scarcely longer than the prothorax, rugulosely punc-

tate and subcarinate, the antenne inserted near the tip, joints 3-7 of the funiculus very short, together

barely so long as the club. Prothorax as long as broad, conical, feebly constricted towards the apex,

minutely punctate. Elytra one-half wider than the prothorax, elongate-triangular, depressed on the

anterior portion of the disc, the subapical callosities tuberculiform ; with rows of shallow punctures placed

in fine striw, the interstices alutaceous. Ventral segments shining and almost smooth (the sides excepted),

1 and 2 slightly pilose down the middle, 5 with a broad deep excavation, which has a small tuft of hair

on each side at the tip. Legs long, rather slender; the tibie each with a long spur, the posterior pair

strongly bisinuate.

Length 5, breadth 2 millim. (<.)

Hab. Guatemata, Senahu in Vera Paz (Champion).

One example, in rather dirty condition. This insect might be mistaken for a small

Hilipus, but it may be easily separated from that genus by the ascending epimera of the

mesothorax, the sulcate prosternum, &c.

PERIDINETELLUS, gen. nov.

Rostrum stout, curved, about as long as the prothorax, the scrobes oblique, lateral, visible from the side, the

antenne inserted near the middle; eyes large, distant; prothorax subcylindrical, convex, bisinuate at

the base, compressed at the sides of the disc posteriorly; scutellum strongly transverse, subquadrate ;

elytra oblong, one-half wider than the prothorax; pygidium not visible; prosternum deeply sulcate ;

anterior cox narrowly separated; meso- and metasternum flattened and depressed between the middle

coxe ; ventral sutures 2-4 deep; mesothoracic epimera ascending, large ; femora sharply dentate ; tibis

sharply unguiculate ; tarsi with joint 3 bilobed, the claws small and completely connate; body convex,

in great part glabrous.

This genus includes a single species, which in its general facies is very like a small

Otidocephalus. Following Lacordaire’s arrangement, it belongs to the Peridinetides.

The subcylindrical, posteriorly compressed, smooth prothorax, almost glabrous body, &c.,

distinguish the present genus from Peridinetus.

1. Peridinetellus subnudus, sp.n. (Tab. XI. figg. 4, 4a.)

Oblong-oval, very shining, glossy black ; the prothorax and elytra with a narrow, common, transverse, curved

fascia of pure white, hair-like scales at the base, the sides of the body beneath also with a narrow band of

similar scales—dense on the metathoracic episterna and extending forward along the propleura,—the base

of the rostrum and the legs with scattered white scales. Head sparsely, minutely punctate, broadly and

deeply sulcate between the eyes ; rostrum sparsely, finely punctate, smooth along the middle at the base.

Prothorax as long as broad, scarcely narrowed in front, almost smooth, with a deep longitudinal furrow

on the posterior portions of the flanks. Elytra somewhat triangular, the humeri obtuse but prominent ;

very faintly striate, the strie deeper at the sides and with fine, scattered, oblong, shallow punctures,

these becoming deeper towards the base and suture. Beneath almost smooth. Tibie and tarsi slender.

Length 22, breadth 11 millim. (9?)

Hab. Panama, Bugaba (Champion),

One specimen,

PANTOTELES. 181

Sect. PANTOTELIDES.

Pantotélides, Lacordaire.

Two American genera have been referred to the Pantotelides : Pantoteles, Schénh.,

and Cyrionyx, Faust; this latter has descending scrobes, and is therefore best placed

elsewhere.

PANTOTELES.

Pantoteles, Schénherr, Gen. Cure. viii. 2, p. 59 (1845) ; Lacordaire, Gen. Col. vii. p- 2138.

The few described species of this genus are all from Tropical America. Seven are

now recorded from within our limits, one of them (P. albocinctus) perhaps not really

belonging to it. Its chief characters are the laterally placed, non-descending scrobes,

the slender rostrum, the sulcate prosternum, the non-contiguous anterior coxe, the

toothed femora, and the narrowly separated tarsal claws. The males of some of the

species have the anterior tarsi clothed with long projecting hairs, as in various

Cryptorrhynchids.

Rostrum slender, straight or feebly curved, depressed at the base; pro-

sternum sulcate, the anterior coxe well separated.

Tarsal joints 1 and 2 narrow, the claws well-developed.

Prothorax infuscate on the disc, whitish or ochraceous at the sides and

apex; elytra mottled with white . . . . . 1... . . . hirtimanus, sp. 0.

Prothorax with two broad vittz, and the elytra with a broad sub-

apical fascia, extending down the suture to the tip, ochreous . . flavofasciatus, sp. n.

Prothorax with a median vitta, and the elytra with a narrow transverse

post-median fascia, black, the rest of the vestiture of the upper

surface flavo-cinereous . . . 1 1 we ww ww we. lomgimanus, sp. n.

Prothorax and elytra mottled with flavo-cinereous or ochreous, the

prothorax usually with a pale median vitta.

Elytra oblong « . - «ee 2 ew ee ew ew et tenuirostris, Boh.

Elytra shorter, subtriangular . . . . . . marmoratus, sp. n.

Tarsal joints 1 and 2 broader, the claws small; prothorax with sides and

a narrow median line, and the elytra with the apical half, flavo-

cinereous. 2. 6 2 6 ee ee ee ek le dimidiatus, sp. n.

Rostrum stouter, arcuate, not depressed at the base; prosternum very

shallowly sulcate, the anterior cox separated by a narrow lamina

only ; prothorax with sides, and the elytra with a broad ante-median

fascia and a common, heart-shaped, subapical patch, whitish. . . . albocinctus, sp. n.

1. Pantoteles hirtimanus, sp. n. (Tab. X. figg. 30, 30a, ¢.)

Elongate, somewhat shining, nigro-piceous, the antenne (the club excepted), rostrum, tibix, femora in part,

and anterior margin of prothorax, more or less ferruginous; the vestiture fine and close above, denser,

coarser, and wholly white beneath: the prothorax white (or ochraceous) at the sides and apex, brown

182 RHYNCHOPHORA.

on the rest of the disc; the elytra brown, with scattered white spots, which are condensed into an

irregular transverse fascia towards the apex, the fascia being connected at the sides with an elongate

white lateral patch; the head white or pale ochraceous. Head densely punctate, foveate between the

eyes; rostrum almost straight, much longer than the head and prothorax, slender, depressed at the base,

finely punctate-strigate in the ¢, almost smooth in the 9, the antenne inserted at the middle in the ¢,

and nearer the base in the 9, joints 1 and 2 of the funiculus elongate, 1 longer than 2. Prothorax sub-

conical, nearly as long as broad, constricted in front ; densely, minutely punctate, and finely carinate.

Elytra long, much wider than the prothorax, very gradually narrowing from the base ; finely punctate-

striate, the interstices flat and densely punctulate. Ventral segment 1 broadly, and 5 shallowly,

depressed down the middle in the ¢. Legs rather elongate (the anterior pair especially); anterior tibise

ciliate within and slightly curved at the apex, and the anterior tarsi set on each side with numerous long

projecting hairs, in the ¢.

Length 7, breadth 24 millim. (d¢ 2.)

Hab. Costa Rica, Azahar de Cartago (Underwood).

One pair, varying in the colour and arrangement of the markings of the upper

surface, the male having the white portions of the head and prothorax ochraceous and

fewer white spots on the elytra. This insect is very like Peridinetus irroratus and its

allies, but the rostrum and male tarsal characters are those of a true Pantoteles,

2. Pantoteles flavofasciatus, sp. n. (Tab. X. fig. 31, 2.)

Oblong, flattened above, opaque, nigro-piceous, the apical half of the rostrum ferruginous ; the vestiture fine :

the head, the prothorax with a broad vitta on each side, and the elytra each with an oblique subapical

fascia, extending broadly down the suture to the tip (almost enclosing a large, rounded, lateral spot), and

various small scattered patches along the striee, ochraceous, the entire under surface whitish, the rest of

the upper surface fuscous. Head densely punctate, sulcate between the eyes; rostrum. slender, a little

longer than the head and prothorax, feebly curved, depressed at the base, almost smooth. Prothorax

broader than long, conical, slightly constricted in front, the sides rounded at the base ; densely, very finely

punctate. Elytra much broader than the prothorax, elongate-subtriangular, the humeri rather prominent ;

finely punctate-striate, the interstices flat, densely punctulate, 4-9 feebly costate towards the apex. Legs

long and slender.

Length 54, breadth 22 millim. (@.)

Hab. Costa Rica, Azahar de Cartago (Underwood).

One specimen. Smaller than P. hirtimanus, the rostrum shorter, the prothorax more

transverse and broadly flavo-bivittate, the elytra each with a broad, oblique, subapical,

ochraceous fascia extending down the suture to the tip and various small clusters of

similarly-coloured scales along the strie.

3. Pantoteles longimanus, sp.n. (Tab. X. fig. 32, ¢.)

Elongate-elliptic, somewhat flattened above, opaque, black, the antenne and legs piceous, the apex of the

rostrum rufescent; the vestiture close, above and beneath, yellowish-cinereous, the prothorax with a

broad, anteriorly evanescent, median vitta, and the elytra with a narrow transverse fascia beyond the

middle and a spot on the subapical callosity, black. Head densely, finely punctate, sulcate between the

eyes ; rostrum almost straight, about as long as the head and prothorax, slender, depressed at the base,

finely, rugulosely punctate and subcarinate to about the middle, the apical portion smoother. Prothorax

broader than long, constricted in front, the sides rounded and rapidly converging from near the base, the

PANTOTELES. 183

hind angles obtuse ; densely, very finely punctate. Elytra much wider than the prothorax, gradually

narrowing from the base; finely punctate-striate, the interstices flat, densely punctulate. Ventral

segments 1 and 2 broadly depressed down the middle. Legs rather slender, the anterior pair elongate ;

anterior tibie sparsely ciliate within from about the middle to the apex ; anterior tarsi clothed on each

side with numerous long projecting hairs.

Length 52, breadth 23-22 millim. (¢.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé).

Two males. The black median vitta of the prothorax, the narrow, transverse,

sharply-defined, black, post-median fascia of the elytra, the elongate-elliptic general

shape, and the long anterior legs and the very hairy front tarsi of the male readily

distinguish P. longimanus.

4. Pantoteles tenuirostris, (Tab. X. figg. 33, 33a, 3 .)

Pantoteles tenuirostris, Boh. in Schénh. Gen. Cure. viii. 2, p- 61"; Chevr. Bull. Soc. Ent. Fr. 1879,

p. elxiii*. ,

Pantoteles glabrirostris, Chevr. in litt.’

Hab. Mexico, Playa Vicente and Toxpam in Vera Cruz (Sallé); Guaremata,

Teleman and San Juan in Vera Paz (Champion); Panama, Bugaba (Champion).—

Braziu ! 2,

Numerous specimens. The markings of the upper surface are variable, according to

the greater or less predominance of the fuscous scales, the prothorax sometimes having

a large dark patch on the disc at the base and the pallid median line indistinct. The

female has a longer and smoother rostrum than the male. In the last-mentioned sex

the first two ventral segments are depressed down the middle and the anterior tarsi are

clothed with long, fine, projecting hairs. P. tenuirostris seems to be distributed in

collections under the MS. name P. glabrirostris, Chevy.

5. Pantoteles marmoratus, sp.n. (Lab. XI. fige. 1, 1a, 2 .)

Oblong-ovate, dull, piceous, the rostrum ferruginous, the tarsi black; mottled above with small pale ochreous and

fuscous scales (the vestiture of the prothorax apparently a little denser along the middle and at the sides,

and that of the elytra showing a tendency to form a median and a subapical fascia); the under surface

uniformly clothed with pallid scales, Head densely, finely punctate, sulcate between the eyes ; rostrum

straight, slender, about as long as the prothorax, depressed and sparsely punctate.at the base. Prothorax

transversely rounded at the sides anteriorly, constricted and much narrowed in front ; densely, finely

punctate and obsoletely carinate. Elytra moderately long, much wider than the prothorax, subtriangular,

the humeri rather prominent ; finely punctate-striate, the interstices flat, densely punctulate.

Length 43, breadth 22 millim. (@.)

Hab. Panama, Caldera in Chiriqui (Champion).

One specimen. Less elongate than P. tenuirostris, the elytra shorter, more trian-

gular, and relatively wider at the base. ‘The vestiture is similarly coloured in the two

forms,

184 RHYNCHOPHORA.

6. Pantoteles dimidiatus, sp. n. (Tab. XI. fig. 2*, ¢-)

Oblong-ovate, opaque, nigro-piceous, the antennae (the club excepted) ferruginous; the head, the prothorax

with the sides, flanks, and a faint median line, the apical half of the elytra, the meso- and metasternum

(except at the sides), and the ventral surface, thickly clothed with small flavo-cinereous scales; the rest

of the upper and under surfaces sparsely set with brownish scales, appearing almost bare. Head densely,

finely punctate, suleate between the eyes; rostrum almost straight, slender, a little longer than the

prothorax, depressed at the base, sparsely finely punctate. Prothorax transverse, rather convex,

constricted and much narrowed in front; densely, finely punctate. Elytra moderately long, a little wider

than the prothorax, gradually narrowing from the base, the humeri somewhat swollen ; finely punctate-

striate, the interstices flat, densely punctulate. Ventral segments 1 and 2 depressed down the middle.

Legs comparatively short and stout ; tarsi rather broad, the anterior pair with a few projecting hairs,

the claws small.

Length 54, breadth 23 millim. (d.)

Hab. Panama, Bugaba (Champion).

One specimen, perhaps a little worn. Less elongate than P. tenuirostris, the apical

half of the elytra densely, uniformly squamose (the scales coarser, a few of them

extending forward along the edges of the striz), the legs shorter and stouter, the tarsal

claws smaller. Ambates posticus, Kirsch, from Colombia, has the vestiture of the

elytra somewhat similarly coloured.

7. Pantoteles albocinctus, sp.n. (Tab. XI. figg. 3, 3a, 3.)

Elongate-elliptic, dull, black; the prothorax with the sides broadly, the elytra with a very broad, common,

transverse fascia below the base (extending downward on to the metasternum) and a large, common,

somewhat heart-shaped, patch on the disc towards the apex, and the under surface (the mesothoracic

side-pieces, a broad space at the sides of ventral segment 1, and a narrow space along the middle of

segments 3-5, excepted), densely clothed with rather coarse whitish scales, the rest of the vestiture of the

elytra sparser, blackish, the median third of the prothorax and the head and rostrum almost bare.

Rostrum feebly arcuate, moderately stout, flattened at the tip, sparsely punctate at the base, and almost

smooth thence to the apex, the scrobes lateral. Joint 1 of the funiculus longer than 2. Prothorax

broader than long, rapidly narrowing from the base, the sides somewhat rounded; densely, finely,

confluently punctate, with indications of a smooth median line. Elytra much wider than the prothorax,

elongate-triangular; finely punctate-striate, the interstices rugulose. Prosternum feebly sulcate.

Anterior coxse separated by a narrow lamella only. Ventral segment 1 depressed in the centre posteriorly,

3 and 4 with a narrow smooth space down the middle, and 5 shallowly foveate at the apex.

Length 74, breadth 31 millim. (¢.)

Hab. Costa Rica, Caché (Rogers).

One specimen, somewhat badly preserved. The broad, transverse, whitish fascia on

the elytra is in this species continued round the metasternum, a common, large, heart-

shaped patch on the disc towards the apex and the sides of the prothorax being also

whitish. The elongate-elliptic shape, and the very narrowly separated anterior coxe,

also help to distinguish P. albocinctus. ‘The rostrum is stouter and more curved than

in the other species here referred to Pantoteles.

* The insect is more elongate than represented by our artist on the Plate.

OPTATUS. 185

Sect. OPTATIDES.

This section is here used provisionally to include the Tropical-American genera

Optatus, Telemus, Pardisomus, Eurypages, Sympages, and Lydamis, of Pascoe,

Macroptatus, Heller, and Cyrionyx, Faust, all of which seem to me to be best removed

from the “Centrinides” of Lacordaire, and placed near the “ Pantotelides.” They

have the mandibles toothed on their inner edge; the anterior coxee contiguous or

narrowly separated (except in such broad forms as Macroptatus and Eurypages); the

prosternum unarmed in the male, not raised between the cox, and with the ante-

coxal portion usually more or less sulcate down the middle; the scutellum well-

developed (except in Pseudoptatus) ; the elytra broad and subtriangular, sometimes with

laterally projecting humeri; the femora sharply dentate or denticulate ; the tibiz rarely

bidentate externally (Pseudoptatus); the males in certain genera with the tibie ciliate

(Pardisomus) or the anterior tarsi greatly dilated and hairy (Optatus, Telemus, Eurypages,

and Macroptatus) ; the body rhomboidal or subovate, more or less squamose.

Various other ** Centrinides” belong here, as Scambus galeatus, Boh., &c.

OPTATUS.

Optatus, Pascoe, Ann. & Mag. Nat. Hist. (6) iv. pp. 822, 327 (1889).

Three species of Optatus are enumerated from within our limits, all from Mexico

or Guatemala. Its chief characters are, the contiguous anterior coxe, the unarmed

prosternum, with rather broad, shallow, or deep median sulcus, the bidentate mandibles,

the long, curved rostrum, the sharply dentate, feebly clavate femora, the greatly

dilated anterior tarsi of the male, and the connate tarsal claws. The general shape

is broad and rhomboidal, and the vestiture is close or fasciculate.

1. Optatus palmaris. (Tab. XI. figg. 5, 5a, 3.)

3. Centrinus palmaris, Pasc. Ann. & Mag. Nat. Hist. (6) iv. p. 826°,

Centrinus miniatus, Chevr, in litt.’.

Hab. Mexico! (Truqui, coll. Fry), Cuernavaca (Sallé), Tehuantepec (Mus. Brit.).

We have received one male and two females of this species and there are various

others in the British Museum. It is readily recognizable by the vermilion-red, oblique,

submarginal stripe on each side of the prothorax, which extends downward on to the

flanks at the base and apex, each stripe being bordered within and without by two

large bare black spots; the mesosternal side-pieces, the metathoracic episterna (except

in front), and the sides of the abdomen are also thickly clothed with vermilion-red

scales. ‘The first two ventral segments are broadly excavate down the middle in the

male. ‘The prosternal sulcus is rather deep and limited on each side by a sharp ridge,

The red scales are of a paler tint in some specimens.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1907. 2 BB

186 RHYNCHOPHORA.

2. Optatus inornatus, sp. n.

Oblong-rhomboidal, black; above rather sparsely, beneath densely, clothed with minute fulvous scales. Head

rugulosely punctate ; rostrum closely punctate, laterally sulcate in its basal half. Prothorax transverse,

~ conical, constricted in front, somewhat convex; densely, finely, confluently punctate, the narrow inter-

spaces obliquely raised, and with a smooth, raised, median line. Elytra finely punctate-striate, the

interstices transversely rugose and almost flat. Beneath closely punctate ; ventral segments 1 and 2

broadly excavate down the middle ; prosternal sulcus shallow, the lateral carine not prominent. Femora

acutely dentate. ‘Tibise more or less sinuous. Anterior tarsi clothed with long, projecting hairs, joints 2

and 3 very broadly, and 1 moderately, dilated.

Length 8, breadth 43 millim. (¢.)

Hab. Guatemata (Sallé).

One male, partially abraded above. This is the Guatemalan representative of the

Mexican O. palmaris: the red markings are entirely wanting, above and beneath ; the

prosternal sulcus is shallower; the tibie are more sinuate; and the first joint of

the anterior tarsi is less dilated. The prothorax is obliquely strigose and the elytral

interstices transversely rugose.

8. Optatus fasciculosus, sp.n. (Tab. XI. figg. 6, 6a, 3.)

Rhomboidal, shining, black or piceous; the depressions of the surface, above and beneath, set with small

fascicles of narrow, adpressed, ochreous or whitish scales, the legs also clothed with similar scales. Head

rugulosely punctate, shallowly foveate between the eyes; rostrum closely punctate and laterally sulcate,

smoother in the 2. Prothorax transversely conical, constricted in front ; coarsely, obliquely strigose—

the raised interspaces smooth and irregular, the depressions confluently punctate,—and with a smooth

median ridge. Elytra deeply punctate-striate, the interstices more or less convex, vermiculate—the

depressions transverse and here and there confluent, the raised portions smooth and bare. Beneath

closely punctate; prosternal sulcus shallow ; ventral segments 1 and 2 broadly excavate down the middle

in the ¢. Femora sharply dentate.

$. Rostrum with a small tubercle in the centre at the apex beneath. Anterior tarsi with joints 1-3 very

. broadly dilated and set with long, projecting hairs.

Length 53-81, breadth 35-5 millim. (¢ @.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé), Cerro de Plumas (/dége); GUATEMALA,

Zapote (Chanrpion) ; Costa Rica (coll. Solari), Santa Clara, San José, and San Carlos

(Biolley).

The vermiculate sculpture, the fasciculate arrangement of the scales, and the

tuberculate apex of the rostrum of the male readily separate O. fasciculosus from its

allies. It is found on Anonis sguamosa, according to Prof. Biolley, to whom we are

indebted for four specimens.

| MACROPTATUS.

Macroptatus, Heller, Stett. ent. Zeit. 1906, pp. 46, 47.

_ This genus is based upon a remarkable insect from Costa Rica, one of the finest

Barids known as yet, of broad, rhomboidal form, flattened above, with the metasternum

strongly protuberant in front, the prosternum unarmed and with a narrow median

MACROPTATUS.— PSEUDOPTATUS. 187

sulcus, the anterior cox well-separated, the mandibles emarginate within (bidentate

when viewed from the side), the rostrum long, curved, and crenulate beneath, the

femora clavate and sharply dentate, the anterior tarsi greatly dilated, the tarsal claws

connate at the base. The type, kindly communicated by Dr. Heller, is doubtless of

the male sex, it having the first ventral segment excavate down the middle.

1. Macroptatus championi. (Tab. XI. figg. 7, 7 a.)

Macroptatus championi, Heller, Stett. ent. Zeit. 1906, p. 48°.

Hab. Costa Rica, Turrialba (dus. Dresden").

PSEUDOPTATUS, gen. nov.

Head convex, small; eyes rather small and depressed. Mandibles short, blunt at the tip, toothed on their inner

edge ; rostrum arcuate, longer than the head and prothorax, stout, tapering outwards in the 9 , the scrobes

rapidly descending, the antenne inserted at (¢) or behind (? ) the middle, joints 2-7 of the funiculus

gradually widening, 1 nearly twice as long as 2, the club stout and ovate; prothorax transversely convex,

bisinuate at the base and apex, the anterior portion short, narrow, and tubulate, with well-developed

ocular lobes; scutellum small, hidden by narrow scales; elytra broad, triangular; pygidium not visible ;

prosternum unarmed in the d, declivous in front, with a narrow median sulcus, depressed between the

cox; metathoracic episterna very broad; anterior coxe very narrowly, the others widely, separated ;

femora gradually widening outwards, abruptly excavate near the apex, shallowly sulcate beneath and

armed with two or three minute teeth; tibiz strongly and acutely dilated on the outer edge near the

base and at the apex; anterior tarsi similar in the two sexes; tarsal claws connate at the base; body

convex, rhomboidal, rugose, clothed with minute, scattered, hair-like scales.

This genus includes a single species from Mexico, and is easily recognizable by the

exteriorly bidentate tibiz. It is nearly related to Optatus. The sexual characters of

the male are very peculiar. |

1. Pseudoptatus dentipes, sp. n. (Tab. XI. fig. 8, 8a, d, 3.)

Robust, opaque, black, the antennx, rostrum, and legs in great part ferruginous; the vestiture fulvous, very

sparse, the scutellar cavity with a dense cluster of coarser, hair-like, ochreous scales; the entire surface,

the legs and rostrum included, coarsely, densely punctate. Prothorax with the sides rounded and rapidly

converging from the base to the anterior lobe. Elytra with densely-packed rows of coarse oblong

punctures separated by narrow raised lines, the strie faint and only visible when the insect is viewed

from the side. Legs rather stout, moderately long, the posterior femora about reaching the apex of the

abdomen.

3. Rostrum tuberculate on each side at the apex beneath, rugose to the tip; metasternum and first ventral

segment very broadly depressed down the middle, the second segment with a line of dense, erect, curled,

ochreous hairs extending across the median third before the middle.

2. Rostrum unarmed, not so stout, the apical half more slender and sparsely punctate.

Length 5-54, breadth 33 millim. (¢ 2.)

Hab. Mexico, Cuernavaca (Sailé), Chilpancingo (H. H. Smith).

Three specimens—two males and one female.

oBB2

188 RHYNCHOPHORA.

LYDAMIS.

Lydamis, Pascoe, Ann. & Mag. Nat. Hist. (6) iv. pp. 322, 328 (1889).

Mandibles toothed on their inner edge; eyes moderately large, depressed; rostrum strongly arcuate, longer

than the head and prothorax, the scrobes descending, the antenne inserted at about the middle in both

sexes, joints 1 and 2 of the funiculus nearly equal in length, the club acuminate-ovate ; prothorax some-

what conical, without ocular lobes, deeply bisinuate at the base, the median lobe broad and subtruncate ;

scutellum short and broad; elytra broad and triangular; pygidium not visible; prosternum unarmed

in the ¢, depressed between the coxee, the median sulcus broad ; anterior coxx subcontiguous, the others

more or less widely separated ; femora strongly clavate and sharply dentate ; tibia strongly unguiculate ;

anterior tarsi similar in the two sexes; tarsal claws long, free; body rhomboidal, thickly clothed with

hair-like or narrow scales.

Type, Centrinus angulus, Boh.

Centrinus angulus, Boh., from Brazil (Para, Santarem, &c.), and its closely-allied

Mexican representative, C. cinnamomeus, are nearly related to Optatus, differing from

that genus in the strongly clavate femora, the simple anterior tarsi of the male, and the

long, divergent claws.

1. Lydamis cinnamomeus, sp. n. (Tab. XI. figg. 9, 9a, 3.)

Convex, somewhat shining, black, the antennx and the apices of the tarsi obscure ferruginous ; the vestiture

close, fine, and hair-like, fulvous or rust-red, that of the elytra in great part fuscous or black, a few

small white scattered spots excepted (these sometimes condensed into a narrow oblique streak on the

dise towards the apex), the prothorax with a faint white streak along the flanks and the under surface

with a few intermixed whitish scales. Rostrum rather stout, rugosely punctate and carinate, the apical

half closely (¢) or sparsely (Q) punctate. Prothorax broader than long, rapidly narrowing from the

base, slightly compressed at the sides before the apex; densely, finely punctate and feebly carinate.

Elytra punctate-striate, the interstices densely punctulate, flat on the disc, feebly convex at the sides,

7 and 8 with a faint raised line. Beneath closely punctate; metasternum and first two ventral segments

broadly excavate down the middle in the ¢.

Length 51-62, breadth 3,,-4 millim. (d 9.)

Hab. Mexico, Playa Vicente and Toxpam in Vera Cruz (Sa/lé).

Four specimens, one of which is immature. Very near L. angulus, Boh., but with

the vestiture finer and more scattered (above and beneath); the surface less densely

punctulate and more shining; the prothorax not so convex on the middle of the disc;

the elytra less flattened on the disc posteriorly.

CYRIONYX.

Cyriony#, Faust, Stett. ent. Zeit. 1896, p. 97.

Numerous species are placed under this genus, which was referred by Faust to the

“ Pantotelides.” Centrinus scapulosus, Boh., and the larger forms approach Optatus

and Telemus, and one, C. camelus, is very like Scambus galeatus, Boh.*; the smaller

forms are closely related to the Venezuelan C. biplayiatus, Faust (the type of which,

a ¢, 1 have examined). As there is a gradual transition in these insects from one to

* Lacordaire (Gen. Col. vii. p. 232, nota) has already called attention to the characters of this species.

CYRIONYX. 189

the other, and no particular value can be placed on the amount of development of the

prosternal sulcus, the sinuation of the base of the prothorax, and the contiguity or

separation of the tarsal claws, they are here all placed under Cyrionyx. The following

are their essential characters :-—

Mandibles toothed within ; rostrum arcuate, as long as, or longer than, the head and prothorax, with obliquely

descending scrobes; prothorax bisinuate or subtruncate at the base, without ocular lobes; scutellum

subtriangular or trapezoidal; elytra much wider than the prothorax, subtriangular; prosternum

unarmed in ¢, the median sulcus (deep, shallow, or almost wanting) limited posteriorly by the

contiguous or narrowly separated anterior coxe, the other coxe distant; femora each with an acute

tooth, feebly clavate ; anterior tarsi similarly formed in the two sexes ; tarsal claws free or subconnate ; ;

body more or less clothed with narrow scales.

Thus defined, Cyrionyx (in its extended sense) may be separated from Optatus,

Telemus *, and Eurypages, all of which have the anterior tarsi greatly dilated and

hairy in the males, Zelemus, moreover, having the femora clavate, as in Lydamis.

Some of the species might easily be mistaken for Conotracheli.

a. Prosternal sulcus deep; prothorax (except in C. cavirostris) more or less

sinuate at the base.

a‘, Elytra with the alternate interstices completely or interruptedly costate.

a, Humeri prominent or subangularly dilated ; anterior coxe contiguous

or subcontiguous.

a®, Tarsal claws divergent. . . . . 6 2 «© «© «© © «© « «© « « Species 1.

}°®. Tarsal claws contiguous at the base.

a‘. Third and fifth elytral interstices interruptedly costate and each

with a hump-like elevation below the base; rostrum comparatively

short . Se ee ee eee . Species 2.

&*. Third and fifth elytral interstices uninterruptedly costate, the

third only with a hump below the base; rostrum very long

and slender . 1. 6 2 6 ee ww ee ew ew we ww ee Species 3.

. The alternate interstices simply costate . . . . - » « Species 4, 5.

b. Humeri not prominent ; anterior coxe well-separated ; tarsal claws free,

c’. Prothorax without prominence on the disc . . . . . 4. . . Species 6.

d°®. Prothorax with a large prominence at middle of disc. . . . . . Species 7.

', Elytra and prothorax with large setigerous prominences on the disc, the

median one on the third elytral interstice long and acutely produced

posteriorly, the humeri sharp; anterior coxe well separated ; tarsal

claws divergent . . . . © ee ee . . . Species 8.

'| Elytra and prothorax with smaller prominences on the dise, the humeri

obtuse ; anterior tarsi contiguous ; tarsal claws contiguous at base . . Species 9,

a’. paihie faintly costate down the middle of each interstice. .

. Rostrum long, not sulcate beneath ; tarsal claws contiguous at base. Species 10.

* The type of this genus, Centrinus cestrotus, Boh., has the femora strongly dentate, not ‘ mutic,” as stated”

by Pascoe.

190 RHYNCHOPHORA.

@. Rostrum short and stout, sulcate and thickened at the middle beneath ;

tarsal claws free 1. 064 wee we Se ee a ee oes Species 11.

e'. Elytra with interstices 7 and 9 narrowly costate ; prothorax with a

setigerous hump; tarsal claws free. . . . + + + > ss. + mepecies Ie.

f'. Elytra with interstices 3, 7, and 9 narrowly costate near th base, the

humeri swollen ; prothorax conical ; tarsal claws free. . - + + + + Species 13.

- g'. Elytra with interstices 7 and 9 faintly costate, the others flat, the humeri

| subangularly dilated ; tarsal claws contiguous at base. . - + + + + Species 14.

h'. Elytra with the interstices flat or feebly convex, the humeri obtuse ;

. tarsal claws contiguous at base . . . ee ee ee et Species 15-18.

b. Prosternal sulcus shallow or wanting ; prothorax very feebly sinuate at the

base; anterior coxe contiguous; tarsal claws very small, free or sub-

connate at base: species small, more or less variegate or maculate with

ochreous, whitish, or pure white scales, [Cyrionyx, Faust.]

i‘, Elytra with the interstices very sharply costate from near the base, the

humeri rather prominent . . . . « « = + . . . « Species 19, 20,

j'. Elytra with the inner interstices moderately costate fr om near + the base . Species 21.

k'. Elytra elongate-triangular, with the dorsal interstices smooth and flat. Species 22.

I‘. Elytra shorter, with the interstices flat or convex, closely punctulate or

rugulose.

e*. Prothorax and elytra with _ or lines of coarser, ochreous or

white scales. . 2. 2. . s . : Species 23-51.

f’. Prothorax and elytra mottled with. a dense clothing ‘of light ‘and dark

scales, the scales on the elytraoval . . . . . . 6 « © « + « Species 32-34.

1. Cyrionyx decemcostatus, sp.n. (Tab. XI. figg. 10, 10@.)

Subrhomboidal, nigro-piceous or black, ‘the antenne, rostrum, tibie, and tarsi reddish or ferruginous ;

variegated with a rather dense clothing of small, narrow, fulvous (or ochreous) and white scales, the

white scales on the prothorax clustered into a narrow curved stripe on each side of the disc and those on

the elytra into small scattered spots, which are here and there transversely confluent, the elytra also

with a black patch at about the middle of the disc and a transverse black fascia near the apex; the

vestiture of the under surface and legs sparse, fulvous and white intermixed. Rostrum stout, strongly

arcuate, about as long as the head and prothorax, thickly punctate, a little smoother in the 9, the

antenne inserted beyond the middle. Prothorax transverse, somewhat gibbous, rounded at the sides

anteriorly, constricted and much narrowed in front, the short anterior portion tubulate; densely, finely

punctate, and also carinate. Elytra broad at the base, triangular, with obtuse, projecting humeri;

punctate-striate, the punctures oblong in shape, the interstices densely rugulose, 2, 3, 5, 7, and 9

sharply costate, the ridges on 2, 3, and 5 more or less interrupted and not reaching the base. Beneath

rather sparsely puuctate ; prosternum sulcate ; ventral segment 1 broadly depressed down the middle in

the ¢. Femora each with a small tooth. -Tarsal.claws long, free.

Length 43-5, breadth 24-23 millim. (¢ 2.)

Hab. Mexico, Toxpam in Vera Cruz (Sa//é).

Five specimens. Of the same size as C. octocostatus, but with a much shorter and

stouter rostrum, the prothorax somewhat gibbous (the median carina arcuate, when.

viewed in profile), the elytral coste more numerous (those on the disc interrupted),

the humeri more prominent, the femora feebly dentate, the tarsal claws free.

CYRIONYX. 191

2. Cyrionyx conotracheloides, sp.n. (Tab. XII. fig. 1.)

Subrhomboidal, robust, black, variegated above and beneath with a dense clothing of brown and whitish

scales, the latter condensed into irregular sinuous lines at the sides of the prothorax, and numerous

small spots on the elytra, the scales on the elytra oval in shape. Head densely, rugulosely punctate ;

rostrum slightly longer than the head and prothorax, arcuate, rather slender, sparsely, very finely

punctate, rugulose and sharply carinate at the base, the antenne inserted at a little behind the middle,

joint 2 of the funiculus shorter than 1. Prothorax strongly constricted in front, the sides parallel at

the base and obliquely converging anteriorly, the base deeply bisinuate; densely, rugulosely punctate,

sharply carinate down the anterior half. Scutellum rounded behind, small. Elytra triangular, very

much wider than the prothorax ; finely punctate-striate, the strise sinuous below the base, the punctures

oblong and distant one from another, the interstices densely rugulose, 3, 5, 7, and 9 sharply, inter-

ruptedly, undulato-costate, 6 also costate posteriorly, the elevation below the base of 3 swollen into a

large, elongate hump, and that near the base of 5 and 7 also much raised. Beneath densely punctate ;

prosternum deeply and rather broadly sulcate, the anterior coxe narrowly separated. Legs stout;

femora moderately clavate, the anterior pair feebly, the others more strongly dentate; third tarsal joint

broadly bilobed, the claws connate at the base.

Length 5%, breadth 33 millim. (¢?)

Hab. Mexico (Hoge).

One specimen, in the collection of Signor A. Solari, of Genoa. The less convex,

sharply carinate prothorax, the oblong, hump-like prominences on the third and fifth

elytral interstices below the base, and the more feebly dentate anterior femora distin-

guish C. conotracheloides from C. reticulatus. The small scutellum and the less clavate

femora separate both species from the genus Telemus, Pasc.*

8. Cyrionyx scapulosus. (Tab. XIT. figg. 2, 2a.)

Centrinus scapulosus, Boh. in Schénh. Gen. Cure. viii. 1, p. 2397.

Hab. Mexico (ex Afus. Chevrolat 1).

The type of this species (? 2 ) has been communicated by Dr. Sjéstedt. It is a very

close ally of C. conotrachelotdes, and differs as follows :—The rostrum is very long and

slender ; the second joint of the funiculus is much longer than the first; the ridge on

the third and fifth elytral interstices is uninterrupted, the hump on the third is

shorter, and that on the fifth is altogether wanting; and the tooth on the anterior

femora is as sharp as that on the other femora. The two insects may prove to be the

sexes of the same species, but this is not likely to be the case.

4, Cyrionyx octocostatus, sp. n. (Tab. XI. figg. 11, 11a.) |

Rhomboidal, dull, black ; thickly clothed with small, narrow, fulvous scales, with a few ochreous and whitish

scales intermixed, the ochreous scales on the prothorax clustered into a faint curved band on each side of

the disc, the whitish scales on the elytra condensed into small spots along the strie, the elytra with a

large, common, triangular space on the basal half of the disc mottled with black (perhaps due to abrasion

of the scales) ; the vestiture of the undersurface ochreous and whitish, dense on the pro- and mesopleura,

that of the femora ferruginous above. Head rugulosely punctate ; rostrum nearly reaching the apex of

* The femora, as already noted, are dentate in this genus.

192 RHYNCHOPHORA.

the metasternum, arcuate, rugulosely punctate and finely carinate, the apical half rather sparsely

punctured, the antennze inserted behind the middle, the club acuminate-ovate. Prothorax convex,

transverse, conical, strongly constricted in front; densely, finely punctate and sharply carinate. Elytra

triangular, rather long, broad at the base, the humeri prominent, obtuse ; finely punctate-striate, the

interstices densely rugulose, 3, 5,7, and 9 sharply costate, the ridge on 3 extending to the apex. Beneath

closely punctate. Prosternum narrowly sulcate. Legs rather stout ; femora strongly dentate ; tarsal

claws subconnate at the base.

Length 43, breadth 24 millim. (9?)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Smaller and less robust than C. reticulatus, the prothorax sharply

carinate, the acute ridge on the third elytral interstice extending to the apex, the

humeri less angular, the antennal club longer and more acuminate.

5. Cyrionyx reticulatus, sp. n. (Tab. XI. figg. 12, 12 a.)

Broad, rhomboidal, nigro-piceous, the antenne (the club excepted) ferruginous ; mottled above with a dense

clothing of small fulvous and whitish scales, the prothorax with several bare dark spots on the disc, the

elytra irregularly reticulate with black on the disc towards the middle; the vestiture of the under surface

and legs also close, fulvous and whitish intermixed. Rostrum long, rather slender, strongly arcuate,

striato-punctate and carinate at the base, and for the rest sparsely, finely punctaie, the antenne inserted

behind the middle, joints 1 and 2 of the funiculus equal in length. Prothorax transverse, narrowing

from the base, compressed on either side of the convex disc anteriorly, and abruptly narrowed and strongly

~ constricted in front: densely, finely punctate, and feebly carinate. Elytra triangular, broad at the base,

the humeri angularly dilated; finely punctate-striate, the interstices rugulose, 3, 7, and 9 very sharply

(especially down the anterior half), and 4-6 feebly (except towards the base), costate, the ridge on 3 not

reaching the apex. Beneath closely punctate ; prosternum narrowly sulcate ; ventral segments 1 and 2

slightly depressed down the middle. Legs stout, rather short ; femora strongly dentate ; tarsi with the

third joint broadly bilobed, the claws contiguous at the base.

Length 51, breadth 33 millim. (2 ?)

Hab. Panama, David (Champion).

One specimen. The strongly constricted prothorax, the very acute ridge on the

anterior half of the third, seventh, and ninth elytral interstices, the angularly dilated

humeri, the stout legs, and the close, mottled vestiture distinguish C. reticulatus.

Larger and more robust than C. octocostatus, the scrobes rapidly descending and only

in part visible from the side.

6. Cyrionyx maculicollis, sp.n. (Tab. XI. figg. 13, 13 a.)

Short ovate, convex, black, the antenne and tibie obscure ferruginous ; the elytra sparsely, the rest of the

upper surface thickly, clothed with minute scales: the head ochreous, mottled with fulvous in front; the

prothorax with a large spot on the disc at the base and a median line extending thence to the apex

ochreous, for the rest fulvous intermixed with white; the elytra with the humeri in front and several

small spots along the raised alternate interstices fulvous, the third and fifth also spotted with black; the

vestiture of the legs fulvous, slightly intermixed with white. Rostrum strongly arcuate, stout, a little

longer than the head and prothorax, rugulosely punctate, smoother at the tip, the antenne inserted

beyond the middle. Prothorax transverse, constricted and much narrowed in front; densely, finely

punctate. Elytra broad, subtriangular ; punctate-striate, the interstices punctulate, 3, 5, 7, and 9, and

8 at the base, sharply costate, the ridge on 3 and 56 interrupted anteriorly. Anterior coxe well-

CYRIONYX. 193

separated. Prosternum deeply sulcate. Legs rather short and stout; femora strongly dentate; tarsal

claws small, free.

Length 23, breadth 13 millim. (3?)

Hab, Panama, Bugaba (Champion).

One specimen. A near ally of the Guatemalan C. gidbicollis ; the head ochreous on

the vertex ; the prothorax with a large ochreous spot on the disc, the dorsal hump

wanting ; the elytra shorter, with the vestiture sparse and almost wholly concentrated

into spots along the raised interstices ; the legs not so stout.

7. Cyrionyx gibbicollis, sp.n. (Tab. XI. figg. 14, 14a, 3.)

Subrhomboidal, convex, black, the antenne, tibia, and tarsi more or less ferruginous; thickly clothed with

small rust-red scales, with a few white scales intermixed (those on the elytra clustered into minute

scattered spots), the elytral interstices 3 and 5 spotted with black below the base. Rostrum strongly

arcuate, stout, about as long as the head and prothorax, rugulosely punctate and carinate, sparsely

punctured at the apex, the antenne inserted at about the middle. Prothorax short, narrowing from the

base, strongly constricted in front, gibbous at the middle of the disc; densely, finely punctate. Elytra

broad at the base, triangular; finely punctate-striate, the interstices densely rugulose, 3, 5, 7, and 9, and

8 at the base, sharply costate, the ridge on 3 and 5 interrupted below the base. Anterior coxe well-

separated. Beneathclosely punctate. Prosternum broadly sulcate. Legs rather stout; femora strongly

dentate; tibise each with a slender uncus; tarsal claws small, free.

Length 24, breadth 14 millim. (<.)

Hab. Guatemaua, Senahu in Vera Paz (Champion).

One specimen. Very like a Conotrachelus, but easily separated therefrom by the

ascending mesothoracic epimera and the simple tarsal claws. ‘The dorsal hump of the

prothorax is arcuate, viewed from the side. C. gibbicollis is one of the few Central-

American Barids with interruptedly costate alternate elytral interstices.

8: Cyrionyx cristatus, sp. n. (Tab. XI. figg. 15, 15a, 2.)

Subovate, nigro-piceous, the antenne, tibiw, and tarsi obscure ferruginous; above densely, beneath more

sparsely, clothed with small rust-red, ochreous, and white scales, the dorsal elevations ot the prothorax

and elytra with dense clusters of long, coarse, erect setee: the white scales above and beneath condensed

into small scattered spots, the head above, a broad space down the middle of the prothorax, and the

space between the large dorsal elevations of the elytra ochreous, the rest of the vestiture rust-red, that

of the legs rust-red intermixed with white, the femora each with a blackish bare patch. Head convex,

depressed between the eyes, densely, finely punctate ; rostrum arcuate, stout, not longer than the head

and prothorax, sparsely punctate, rugulose and finely carinate at the base, the antenne inserted at the

middle. Prothorax transverse, abruptly narrowed and constricted in front, the sides parallel at the base,

the short anterior portion tubulate ; densely, finely punctate, the posterior lobe with two compressed

setigerous prominences on the disc in front, the anterior lobe with four small clusters of long erect sete.

Elytra broad at the base, triangular, the humeri subangularly dilated ; punctate-striate, the second and

third strie sinuate, the interstices rugulose, 3, 5, and 7 with scattered setigerous prominences, 9 sub-

costate, the median elevation on 3 very large, oblong, and produced into a sharp tooth behind. Anterior

coxse well separated. Beneath closely punctate. Femora sharply dentate. Tarsal claws long and

divergent.

Length 31, breadth 2 millim. (9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1907. 2CC

194 RHYNCHOPHORA.

One specimen, in beautifully fresh condition. Distinguishable by the setigerous

prominences on the prothorax and elytra, the one at the middle of the third interstice

long, stout, and acutely produced behind. C. cristatus approaches C. gibbicollis. It

has somewhat the facies of Phacelobarus singularis from Madagascar.

9. Cyrionyx nigrosellatus, sp.n. (Tab. XI. figg. 16, 164, ¢.)

Subovate, black, the legs in part and the antenne ferruginous ; variegated above with a dense clothing of

small, fulvous, whitish and black scales, the whitish scales on the prothorax clustered into a median line

and various oblique streaks at the sides and those on the elytra into a very large apical patch, the black

ones on the elytra condensed into a common, transverse, interrupted, rhomboidal median patch and a

spot on the third and fifth interstices about midway between it and the base; the under surface and

legs with intermixed fulvous and white scales. Rostrum strongly arcuate, stout, not longer than the

head and prothorax, striato-punctate, the antenne inserted at the middle. Prothorax transverse, gradually

narrowing from the base, strongly constricted in front; densely, finely punctate, binodose on the disc.

Scutellum small, triangular. Elytra subtriangular, slightly sinuate at the sides; very finely punctate-

striate, the interstices densely rugulose, 3 (strongly) and 5 (feebly) nodose and nigro-squamose at about

the middle, 5 produced into a conical tubercle at its point of termination. Beneath closely punctate ;

intercoxal portion of the metasternum broad and somewhat depressed; ventral segments 1 and 2

depressed down the middle. Legs rather short ; femora strongly dentate.

Length 3, breadth 12 millim. (<.)

Hab. Panama, Los Remedios near the Pacific coast (Champion).

One specimen. This species has wholly the facies of a Cryptorrhynchid (Cono-

trachelus, &c.), and may be known by its binodose prothorax and tuberculate elytra.

‘The elytral interstices are flat and densely clothed with whitish scales behind the black

squamigerous elevations at the middle of the disc; the conical tubercle at the apex of

the fifth is very prominent.

10. Cyrionyx balaninoides, sp.n. (Tab. XI. figg. 17, 17a, 2.)

Rhomboidal, robust, nigro-piceous, the rostrum reddish ; somewhat thickly clothed with minute, narrow,

fulvous scales, the under surface and legs with afew whitish scales intermixed. Rostrum feebly arcuate,

long, rather slender, sparsely, finely punctate, striato-punctate and carinate at the base, the carina

running upwards between the eyes, the scrobes in great part visible from the sides, the antenne inserted

far behind the middle, the club large, acuminate-ovate. Prothorax broader than long, rapidly, arcuately

narrowing from the base, strongly constricted in front; densely, finely, confluently punctate and also

carinate, the carina not reaching the base and prominent in front. Elytra broad at the base, triangular ;

finely punctate-striate, the interstices almost flat, densely rugulose, each very finely costate down the

middle, the ridges becoming more distinct towards the sides and obsolete towards the suture. Beneath

closely punctate. Legs rather stout ; femora strongly dentate ; tarsal claws subconnate.

Length 43, breadth 2? millim. ( 2.)

Hab. Panama, Caldera in Chiriqui (Champion).

One specimen. This insect somewhat resembles Optatus tnornatus (the vestiture

being similar in the two species), but it is smaller and Jess elongate, the rostrum is

more slender, the elytral interstices are faintly costate, the scutellum is less transverse,

&c. The rostral carina extends upward and nearly meets the median ridge of the

prothorax, and the scrobes are in great part visible from the sides.

CYRIONYX. 195

11. Cyrionyx cavirostris, sp.n. (Tab. XI. figg. 18, 18a, 3.)

Rhomboidal, convex, dull, piceous ; clothed with minute, narrow, intermixed brownish and flavo-cinereous

scales, which are here and there clustered into small fascicles on the elytra, the elytra also with a narrow

transverse streak of coarser white scales on each side below the shoulder; the vestiture of the under

surface sparse, cinereous. Rostrum strongly arcuate, stout, a little longer than the head and prothorax,

thickened and sulcate at the middle beneath, rugosely punctate, smoother at the tip, the antenne

inserted at about one-third from the apex. Prothorax transverse, rounded at the sides, moderately

convex, constricted and much narrowed in front; densely, finely punctate and feebly carinate. Elytra

broad at the base, triangular, rather long; punctate-striate, the punctures oblong in shape, the interstices

densely rugulose, each very finely and narrowly costate down the middle, the ridges becoming obsolete

towards the base and more distinct towards the sides. Beneath closely punctate; first ventral segment

broadly depressed down the middle. Femora acutely dentate. Tarsal claws free.

Length 34, breadth 2 millim. (<¢.)

Hab. Mexico, Jalapa (Hoge).

One specimen. An isolated form, with the median portion of the rostrum thickened

and sulcate beneath, the elytra with a transverse white streak on each side below the

shoulder, their interstices faintly costate down the middle.

12. Cyrionyx camelus, sp.n. (Tab. XI. figg. 19, 19 a.)

Subrhomboidal, opaque, black, the femora piceous, the antenne, tibie, and tarsi more or less ferruginous ;

somewhat thickly clothed with minute fulvous, white, and black scales, the dorsal hump of the prothorax

with a cluster of long, erect setee: the prothorax with a triangular black patch on the disc behind,

divided by a white or fulvous median line, the flanks sometimes with a streak of coarser pure white

scales; the elytra (except across the base, which is almost bare) variegated with fulvous, black,

and white, the black scales condensed into a transverse patch on the disc before the middle (which is

limited externally by a pure white spot on the fourth interstice), one or two common curved fascize below

it, and a transverse subapical band; the sides of the metasternum densely clothed with rather coarse pure

white scales, the rest of the under surface and the legs with minute fulvous and white scales, Rostrum

stout, strongly arcuate, sparsely punctate, the antennz inserted at the middle. Prothorax transverse,

narrowing from the base, abruptly constricted in front, the short anterior portion tubulate; densely,

finely punctate, the posterior lobe with a large, angular, compressed, setigerous hump on the disc in front.

Elytra triangular, flattened on the disc at the base; very finely punctate-striate, the interstices flat and

minutely punctulate, 7 and 9 narrowly costate, 2 and 3 slightly swollen before the middle. Beneath

closely punctate. Metasternum broad and flattened between the middle coxe. Anterior coxe narrowly

separated. Femora each with a short acute tooth. ‘arsal claws free.

Length 24-24, breadth 14-12 millim.

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

Four specimens, one of them abraded. This insect may be known by the large,

angular, setigerous hump on the prothorax, the peculiarly marked, somewhat flattened

elytra, and the dense patch of pure white scales on the sides of the metasternum. It is

very like Scambus galeatus, Boh., but is smaller and narrower, the dorsal prominence

on the prothorax is not curved backward, the humeri are less explanate, &c.

13. Cyrionyx cuneatus, sp. n.

Rhomboidal, shining, fusco-castaneous, the rostrum, antenne, and tibie ferruginous; mottled above with

small, narrow, ochraceous scales intermixed with scattered darker scales, the former clustered into a short

20C2

196 RHYNCHOPHORA.

streak on the fifth interstice towards the apex ; the vestiture of the under surface and legs ochraceous.

Rostrum feebly arcuate, cylindrical, moderately stout, longer than the head and prothorax, rugulosely

punctate at the sides towards the base, and for the rest almost smooth, the antenne inserted at the

middle. Prothorax short, conical, constricted in front, closely, minutely punctate, with indications of

a smooth median line. Elytra triangular, rapidly and obliquely narrowing from the base, the humeri

swollen ; finely punctate-striate, the interstices rugulose, flat, 3, 7, and 9 narrowly costate at or near the

base. Beneath closely punctate. Prosternal sulcus deep. Anterior cox narrowly separated. Femora

sharply dentate.

Length 21, breadth 13 millim. (2.)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. Very like C. sguamans, but with the elytral vestiture finer, the

elytra themselves obliquely narrowing from the swollen humeri, and with the interstices

3, 7, and 9 finely costate at the base, the anterior coxe less approximate, the prosternal

sulcus deep.

14, Cyrionyx humeralis, sp.n. (Tab. XI. figg. 20, 204, ¢ .)

Subrhomboidal, piceous, the antenne (and sometimes the rostrum also) ferruginous ; mottled above with a

dense clothing of small, oval, fuscous and cinereous (or ochraceous) scales, the prothorax with two

broad dark vitta (sometimes each divided into two spots) on the disc, the pallid scales on the elytra

condensed into a short streak on the fifth interstice at its point of termination; the vestiture of the legs

and under surface whitish or ochraceous. Rostrum moderately stout, feebly arcuate, long, fully reaching

the apex of the metasternum in both sexes, striato-punctate in its basal half and sparsely punctate thence

to the apex, a little smoother in the 9, the antenne inserted at about the middle. Prothorax transverse,

constricted and much narrowed in front, the sides rapidly, arcuately converging from the base; densely,

finely punctate. Elytra shining, triangular, rather convex, with dilated humeri, which are angular

behind, the subapical callosities prominent ; finely punctate-striate, the interstices rugulose, broad,

and almost flat, 7 and 9 sometimes with a faint carina running down from the shoulder. Beneath

rather sparsely punctate. Prosternal sulcus deep, bare. Ventral segments 1 and 2 depressed down the

middle, and 5 broadly foveate, in the d. Legs rather stout ; femora strongly dentate.

Length 34-4, breadth 21-22 millim. (d 2.)

Hab. Mexico, Playa Vicente (Sallé), Teapa (H. H. Smith); GUATEMALA, Teleman

(Champion).

Six specimens. Recognizable from its allies by the angularly projecting humeri,

mottled elytra, and flat dorsal interstices. C. huwmeralis is the representative. of

C. turbidus on the Atlantic slope.

15. Cyrionyx turbidus, sp.n. (Tab. XI. figg. 21, 21a, 2.)

Subovate, rather short, nigro-piceous or piceous; mottled above with a dense clothing of small, oval, fuscous

and flayo-cinereous (or ochraceous) scales, the prothorax with two dark patches (sometimes united into a

single vitta) on each side of the pallid median stripe, the pallid scales on the elytra condensed into

a short streak on the fourth interstice below the base and another on the fifth at its point of termination,

and the fuscous scales clustered into numerous spots; the vestiture of the under surface and legs

ochraceous or whitish. Rostrum moderately stout, arcuate, long, about reaching the apex of the

wuetasternum in the 9, in the ¢ striato-punctate in its basal half and sparsely punctate thence to the

apex, in the @ smoother and sparsely punctate throughout, the antenne inserted near the middle,

Prothorax transverse, rounded at the sides, constricted and much narrowed in front; densely, finely

CYRIONYX. 197

punctate. Elytra subtriangular, rather convex ; finely punctate-striate, the interstices broad, flat,

and rugulose. Beneath rather sparsely punctate. Ventral segments 1 and 2 depressed down the

middle, and 5 with a broad fovea, in the ¢. Anterior coxe well-separated. Femora sharply dentate. ,

Length 21-24, breadth 12-13 millim. (¢ 2.)

Hab. Guarrmaua, Zapote, Pacific slope (Champion).

Seven specimens. Smaller and less robust than C. humeralis, the humeri obtuse.

Larger than 0. nebulosus, the fuscous scales on the prothorax and elytra clustered into

numerous small scattered spots, the rostrum a little stouter, the prosternal sulcus

deeper, the anterior coxe less approximate,

16. Cyrionyx levirostris, sp.n. (Tab. XI. fig. 22.)

Subovate, obscure ferruginous, the tarsi blackish ; variegated above with a somewhat dense clothing of small,

sordid ochreous and blackish scales, the dark scales on the elytra mostly clustered into a large, common,

transverse, subquadrate, interrupted patch at the middle and a transverse space at or below the base, the

prothorax with two dark vittee on the disc and in one specimen a dark marginal line also; the vestiture

of the under surface pale and rather close. Rostrum long, moderately curved, thickened at the base,

smooth and slender in the 92, rugulose at the base and a little stouter in the ¢, the antenne inserted

behind the middle in both sexes. Prothorax transverse, rounded at the sides from near the base,

strongly constricted in front; densely, finely punctate. Elytra subtriangular, the humeri rather,

prominent; finely punctate-striate, the interstices rugulose and almost flat. Beneath closely punctate ;

prosternum rather deeply suleate ; ventral segment 1 with a broad, smoother, depressed, glabrous space

extending down the middle in the ¢ and a shallower depression in the 9. Anterior coxs contiguous.

Legs moderately long ; femora acutely dentate.

Length 23-22, breadth 14-1} millim. (3 ¢ »)

Hab. Panama, Volcan de Chiriqui 3000-8000 feet (Champion).

Two specimens. A species with a long, slender, almost smooth rostrum in the

male, an irregular, common, transversely-subquadrate, dark patch at the middle of the

elytra, and two dark vittee on the prothorax, the rest of the vestiture of the upper

surface close and in great part ochreous.

17. Cyrionyx fuscitarsis, sp. n.

Very like C. levirostris, but with the elytral vestiture more mottled, the pallid scales sometimes condensed

into a large apical patch or a transverse subapical fascia, the prothorax with a median line and a stripe

midway between it and the margin ochraceous ; the rostrum long, punctate to the tip in the ¢, very

slender and almost smooth in the Q; the prothorax more rounded at the sides, the anterior portion

narrow and tubulate ; the anterior coxee narrowly separated.

Length 22-2,%,, breadth 12-14 millim. (¢ @.)

Hab. Guatemata, Cerro Zunil (Champion).

Four specimens. This insect appears at first sight to be nothing more than a

variety of C. Jevirostris (the elytral markings being variable in both forms), but the

somewhat thickly punctate rostrum of the male sufficiently distinguishes it. We also

have a male from Chiriqui that probably belongs to the same species.

198 RHYNCHOPHORA.

18. Cyrionyx exiguus, sp.n. (Tab. XI. figg. 23, 23a, 3.)

Subrhomboidal, rather convex, shining, black, the antennz (the club excepted) ferruginous ; the vestiture fine,

close above, sparse beneath, long and piliform on the prothorax, somewhat squamiform on the rest of the

surface: the prothorax ochreous or with a broad, oblique, ochreous vitta on each side ; the elytra black,

more or less mottled with white, the white scales sometimes clustered into a small spot at the middle of

the fourth interstice; the legs and under surface with scattered whitish scales. Rostrum shining,

strongly arcuate, stout, slightly longer than the head and prothorax, very sparsely, minutely punctate,

rugulose at the sides towards the base, the antennew inserted at a little behind the middle. Prothorax

transverse, rapidly narrowing from near the base, strongly constricted in front; closely punctate, with a

more or less distinct, smooth, raised, median line. Elytra triangular, deeply striate, the striw faintly

punctate, the interstices somewhat convex and sparsely punctulate. Prosternum broadly sulcate.

Ventral segments sparsely punctate ; 1 depressed down the middle and 5 obsoletely foveate in the ¢.

Legs rather stout ; femora strongly dentate, the posterior pair not reaching the apex of the abdomen.

Length 22, breadth 14 millim. (¢ 2.)

Hab. GuatemaLa, San Gerdénimo (Champion).

Three specimens, one with most of the fine ochreous vestiture of the prothorax

abraded.

19. Cyrionyx bilineatus, sp.n. (Tab. XI. figg. 24, 24a, 2.)

Subovate, rather elongate, black, the elytra very shining, except at the shoulders; the prothorax with a

sharply defined elongate streak on each side at the base and a stripe along the lower part of the flanks,

the elytra with an elongate streak on the sixth interstice at the base and another on the disc at the apex,

and the under surface, thickly clothed with white scales ; the rest of the prothorax, the humeri, and the

mesothoracic epimera with small brown scales; the vestiture of the legs and rostrum sparse, white.

Rostrum stout, strongly arcuate, longer than the head and prothorax, smooth down the centre and at the

apex, rugulose at the sides, the antennae inserted at a little beyond the middle. Prothorax a little

broader than long, gibbous, rounded at the sides, narrowed and constricted in front; densely, finely

punctate. Elytra subtriangular, somewhat gibbous at the middle of the disc, constricted on each side

behind the rather prominent humeri; narrowly striate, the strie faintly punctate, the interstices flat

at the base and very sharply costate thence to the apex, almost smooth, the rugulose humeral region

excepted. Legs elongate, rather slender; femora sharply dentate; anterior and intermediate tibi

sharply, and the posterior tibie feebly, unguiculate.

Length 3, breadth 12 millim. ( 9.)

fab. Panama, Bugaba (Champion).

One specimen only of this peculiar form has been obtained, recognizable by the

sharply-defined continuous white streak running down the base of the prothorax and

the base of the elytra, the gibbous prothorax, the very sharply costate, shining, elytral

interstices, the long legs, &c. ;

20. Cyrionyx acutecostatus, sp. n.

Subovate, black, the elytra more or less variegated with rufo-piceous at the base, sides, and apex, the tibis

and the base of the femora rufous, the rostrum partly rufescent ; the vestiture fine: the prothorax with

a median line and a faint line midway between it and the outer margin, and the elytra with a donee

oblong streak on the disc towards the apex, the apex itself, and several small spots placed in a transverse

irregular series below the base, white ; the rest of the clothing of the prothorax and of the base of the

elytra brownish, that of the under surface dense and white, the legs also with narrow white scales

Rostrum stout, arcuate, a little longer than the head and prothorax, smoother in the © than in the +,

CYRIONYX, 199

the antenn inserted beyond the middle. Prothorax transverse, somewhat convex, rounded at the

sides, constricted in front; densely, finely punctate. Elytra subtriangular, constricted on each side

below the rather prominent humeri, transversely depressed on the disc below the base; narrowly and

deeply punctate-striate, the interstices flat and rugulose at the base, and sharply costate and almost

smooth thence to the apex. Beneath closely punctate; ventral segment 1 depressed down the middle in

the ¢. Legs long; femora sharply dentate ; anterior and intermediate tibie sharply, and the posterior

tibie feebly, unguiculate. ,

Length 24-8, breadth 11-14 millim. (¢ 9.)

Hab. Panama, Volcan de Chiriqui 2500-4000 feet (Champion).

Three specimens. Nearly related to C. bilineatus, but wanting the continuous

white submarginal stripe on the basal portion of the prothorax and elytra, the

prothorax more transverse and not gibbous anteriorly, the elytral interstices rugulose

at the base and not quite so sharply costate thence to the apex, the tibiee and the base

of the femora rufous.

21. Cyrionyx semicostatus, sp.n. (Tab. XI. fig. 25, var.)

Very like C. apiatus (infra); black or piceous, the antenne and legs sometimes obscure ferruginous ; the

prothorax with a complete median line, and an interrupted curved stripe on each side, white; the elytra

each with four white spots—one on the sixth interstice at the base, one on the second a little lower down,

one at the sides (transverse) below it, and one on the dise towards the apex,—the inner interstices (the

first, or sutural one, excepted) narrowly costate from a little below the base, the others somewhat

angular ; the vestiture of the under surface closer, white, dense along the lower parts of the flanks of the

prothorax and on the metathoracic episterna.

Length 13-2, breadth ;%-1,5 millim. (¢d Q.)

Hab. Mexico, Teapa (H. H, Smith); British Honpuras, Belize (Blancaneauz) ;

GuateMaLa, Cubilguitz and Chacoj in Vera Paz (Champion).

Var. The prothorax with three uninterrupted white lines; the elytra with the white spot at the base of the

sixth interstice extending downward to join the transverse mark below it.

Hab. Panama, David (Champion).

Eight specimens, the two from David (from one of which our figure is taken) being

doubtless an extreme form of the same species. ‘The cariniform inner elytral interstices

is a character still more emphasized in some other members of the genus. ‘The

prothorax appears to be longer and broader in the male than in the female.

22. Cyrionyx nitidipennis, sp. n. (Tab. XI. figg. 26, 26a.)

Oblong-rhomboidal, rather convex, shining, black, the antenne, the base of the femora, and the tibiz in part,

ferruginous; the prothorax with three lines of intermixed fulvous and white adpressed hairs ; the elytra

with a few scattered pure white scales, which are clustered into a narrow oblique streak at the base, two

minute spots below it, a transverse mark at the sides below the shoulder, and two oblong spots on the

dise near the apex, the basal region also with scattered fulvous hairs ; the vestiture of the legs and under

surface sparse and fine, fulvous and white intermixed. Rostrum considerably longer than the head and

prothorax, strongly arcuate, rather stout, striate and faintly punctate in its basal two-thirds, much

smoother at the apex, the antenne inserted at a little beyond the middle. Prothorax transverse, rounded

at, the sides from near the base, constricted in front; densely, finely punctate. Elytra elongate-

triangular, flattened near the suture, the humeri rounded ; deeply striate, the strie faintly punctate, the

200 RHYNCHOPHORA.

first placed close to the suture, the interstices smooth and flat. Ventral segments very sparsely punctate.

Legs elongate, slender; femora acutely dentate; tibia sharply unguiculate,

Length 24, breadth 1 millim. (9 ?)

Hab. Panama, Bugaba (Champion).

“One specimen. Distinguishable by the long, triangular, shining elytra, with small

scattered patches of pure white scales near the base and apex, deeply-cut strie, and

smooth, flat interstices ; the long, slender legs, &c.

23. Cyrionyx apiatus, sp.n. (Tab. XI. fig. 27.)

Subovate, rather shining, varying in colour from piceous, with. the antenne, elytra, and legs ferruginous, to

entirely ferruginous; the vestiture very fine and sparse, ochraceous and ferruginous, the prothorax

usually with one or two small white spots on each side and sometimes a faint whitish median line, the

elytra with several small patches of coarser pure white scales—a spot on the second interstice below the

base, a transverse mark at the sides in a line with it, and a spot on the disc towards the apex; the

under surface and legs with scattered whitish scales. Rostrum stout, strongly arcuate, rugulosely

punctate and feebly carinate, sparsely punctate at the tip, a little smoother in the 2, the antenne

inserted beyond the middle. Prothorax transverse, rounded at the sides, constricted in front; densely,

finely punctate. Elytra subtriangular, the humeri somewhat prominent ; very deeply striate, the strix

feebly punctate and nearly as broad as the interstices, the latter narrow, convex, becoming subcostate

towards the apex, and more or less punctulate. Beneath closely punctate ; ventral segment 1 broadly

_ depressed down the middle in the g. Legs rather long; femora acutely dentate,

Length 13-2,),, breadth 1-1, millim. (3 9.)

- Hab. Mexico, Teapa (H. H. Smith); Guatumata, San Juan and Senahu in Vera

Paz (Champion).

Ten specimens, varying in colour (though the elytral spots are constant in position,

and do not reach the base) and in the intensity of the puncturing of the elytral

interstices. The broadly and deeply striate elytra, and the arrangement of the

vestiture of the upper surface, separate C. apiatus from C. sexguttatus and C. clathratus.

The rostrum is stout and comparatively short.

24, Cyrionyx clathratus, sp.n. (Tab. XI. figg. 28, 28a, 3.)

Subovate, rather narrow, nigro-piceous, the antennze obscure ferruginous ; the prothorax with intermixed white

and ochreous, hair-like scales, the white scales condensed into three lines on the disc and a transverse streak

on the flanks near the anterior margin, and the ochreous scales into a faint transverse fascia across the

middle of the posterior lobe ; the elytraeach with the following white markings—a transverse curved fascia

below the base, extending forward along the suture, and sometimes connected with a short streak on the

base of the sixth interstice, an oblique or triangular patch on the disc towards the apex, and a small

streak at the tip,—the rest of their vestiture fuscous ; the under surface with white and ochreous, hair-like.

scales, the metathoracic episterna with pure white scales; the vestiture of the legs and rostrum sparse

and white. Rostrum strongly arcuate, rather stout, moderately long, rugulose and faintly carinate,

smoother at the tip, the antenne inserted beyond the middle. Prothorax transverse, rounded at the

sides from near the base, constricted in front, densely, finely punctate. Elytra subtriangular, with rather

prominent humeri; deeply punctate-striate, the interstices rugulose and somewhat convex. Beneath

closely punctate; ventral segments 1 and 2 slightly depressed down the middle in the g. Legs long;

femora acutely dentate.

Length 2, breadth 1 millim. (¢ 9.)

Hab. GuateMaa, Cerro Zunil, Zapote, San Gerénimo (Champion).

CYRIONYX. 201

Three specimens. The complete transverse, arcuate, white fascia below the base of

each elytron separates C. clathratus from other allied forms with patches of white

scales on the upper surface.

25. Cyrionyx apicalis, sp.n. (Tab. XI. figg. 29, 29a, 2.)

Ovate, convex, rather shining, black, the legs and antenne piceous ; the vestiture close and fine: the head and

scutellum, the prothorax with a median line and a curved submarginal vitta on each side, the elytra with

a patch on each shoulder and the apical third, the under surface and legs, white, the rest of the upper

surface black. Rostrum moderately stout, strongly arcuate, rugulosely punctate at the base and very

sparsely punctured thence to the apex, the antennz inserted at a little behind the middle. Prothorax

transverse, rounded at the sides from near the base, constricted in front; densely, finely punctate.

Elytra subtriangular, with narrow, deep stris, the striz: obsoletely punctate, the interstices broad, almost

flat, rugulose. Beneath closely punctate. Legs rather stout; femora with a small, acute tooth, the

posterior pair not reaching the apex of the abdomen; tarsal claws very small, subconnate.

Length 24, breadth 1; millim. (Q.)

Hab. Panama, Bugaba (Champion).

One specimen. The albo-trivittate prothorax and the white humeral spot and large

apical patch on the elytra distinguish C. apicalis. The legs are comparatively short

and stout.

26. Cyrionyx alboplagiatus, sp.n. (Tab. XI. fig. 30.)

Subovate, rather shining, nigro-piceous, the femora and tibie obscure ferruginous ; the vestiture close: the

prothorax with a median line and a marginal stripe on each side, and the elytra with an oblong patch

on the second interstice below the base, an interrupted streak running down the basal half of the sixth

interstice and extending outwards below the humeri, and an elongate-triangular patch on the disc towards

the apex, white, the rest of their surface fuscous, the head, under surface, and legs white. Rostrum

arcuate, stout, not longer than the head and prothorax, thickened and rugulose at the base, the apical

half almost smooth. Prothorax transverse, rounded at the sides, constricted in front; densely, finely

punctate. Hlytra subtriangular, with narrow, deep, feebly punctate striz, the interstices broader than

the striw, rather convex, and densely rugulose. Beneath closely punctate,

Length 12, breadth 1 millim. (2.)

Hab. Guatemata, La Tinta in the Polochic valley (Champion).

One specimen. Smaller and less robust than C. apicalis, the rostrum shorter, the

outer white stripe on the prothorax marginal, the white scales on the elytra differently

arranged. ‘The stria are finer than in C. clathratus. The markings on the outer part

of the elytra form an irregular, interrupted, curved stripe.

27. Cyrionyx sexguttatus, sp.n. (Tab. XI. fig. 31.)

Subovate, rather convex, piceous, the antenne, tip of the rostrum, and legs more or less ferruginous; clothed

with minute brownish and coarser whitish and ochreous scales, the latter condensed into a broad space

on each side of the prothorax and various sharply-defined spots or patches on the elytra—a spot on the

second interstice below the base (extending faintly downward to the apex), a transverse patch on each

side below the shoulder (extending down the sixth and eighth interstices), and a rather large spot on the

disc towards the apex; the vestiture of the legs and under surface whitish. Rostrum arcuate, not longer

than the head and prothorax, sparsely punctate. Prothorax transverse, rounded at the sides, constricted

in front; densely, finely punctate. LElytra triangular, deeply striate, the stric narrow and feebly

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, July 1907. 2DD

202 RHYNCHOPHORA.

punctate, the interstices broader than the striae, rugulose, and slightly convex. Beneath closely punctate.

Anterior coxe narrowly separated. Legs long, rather slender ; femora acutely dentate.

Length 2,,, breadth 1,4, millim. (9?)

Hab. Panama, Pefia Blanca 3000 feet (Champion).

One specimen. The ochreous sides of the prothorax and the shape and position of

the patches of coarser whitish scales on the elytra sufficiently distinguish C. sexquttatus

from C. apiatus and others. The elytral interstices are much wider than the strie.

28. Cyrionyx niveipictus, sp.n. (Tab. XI. fig. 32.)

Subovate, rather narrow, convex, ferruginous ; thickly clothed with minute, narrow scales, which are ochreous

on the prothorax (a whitish median line, and a darker space on each side of it, excepted) and ferruginous

on the elytra, and with various small sharply-defined patches of coarser, pure white, glistening scales—

a spot on each side of the prothorax in front and another above each anterior coxa, a streak at the base

of the fifth elytral interstice, an oblique streak near the middle of each elytron, and a small spot at their

apex, an elongate patch on the metathoracic episterna, and a streak on the mesothoracic episterna ; the

vestiture of the head, legs, and under surface sparse, whitish or ochreous, denser and wholly whitish on

the median third of the metasternum. Rostrum stout, strongly arcuate, longer than the head and

prothorax, striate and carinate to near the tip, the antenn inserted at about the middle. Prothorax

transverse, rounded at the sides from near the base, strongly constricted in front; densely, finely punctate.

Elytra subtriangular, rather long; deeply striate, the striz faintly punctate, the interstices rugulose and

feebly convex. Beneath closely punctate. Legs long; femora acutely dentate.

Length 2, breadth 1 millim. (2?)

Hab. Panama, Pefia Blanca 3000 feet (Champion).

One specimen, probably mature. A handsome little insect, with small, dense

patches of pure white glistening scales—eight above and three on each side beneath.

29. Cyrionyx ochreonotatus, sp. n. (Tab. XI. fig. 33.)

Ovate, convex, black ; the prothorax with a broad vitta on each side, and the elytra with a large, rounded

spot near the suture below the base, a smaller spot in a line with it on the outer margin, and a triangular

patch on the oyter part of the disc near the apex, densely clothed with oval, ochreous scales: the rest

of the vestiture of the upper surface fine and sparse, blackish above (a faint whitish median line on the

prothorax excepted) and whitish beneath and on the legs. Rostrum strongly arcuate, not very stout,

rugulose in its basal half and smoother thence to the tip, the antenne inserted at the middle. Prothorax

transverse, rounded at the sides from near the base, constricted in front; densely, finely punctate.

Elytra subtriangular, deeply striate, the strie feebly punctate, the interstices rugulose and rather convex.

Beneath closely punctate ; ventral segments 1 and 2 broadly depressed down the middle. Legs moderately

long; femora acutely dentate.

Length 2, breadth 1,4; millim. (¢.)

Hab. Panama, Bugaba (Champion).

One specimen. The dense patches of coarse ochreous scales on the prothorax and

elytra readily distinguish C. ochreonotatus.

30. Cyrionyx ambatoides, sp.n. (Tab. XT. fig. 34.)

Subovate, rather narrow, nigro-piceous, the antenne and legs obscure ferruginous; the vestiture close and

squamiform, above and beneath: the prothorax with three sharply-defined, narrow, white vitte, the

CYRIONYX. 203

submarginal one continued down the disc of each elytron to the apex, and sometimes divided into three

spots or streaks, the rest of the vestiture of the upper surface blackish-brown, that of the under surface

wholly white, the legs and rostrum with narrow whitish scales. Rostrum arcuate, moderately stout,

rugulose and finely carinate, smoother at the tip, the antenne inserted beyond the middle. Prothorax

transverse, rounded at the sides from near the base, feebly constricted in front ; densely, finely punctate.

Elytra subtriangular, finely punctate-striate, the interstices flat and rugulosely punctate. Beneath closely

punctate ; first ventral segment excavate down the middle in the ¢. Legs long; femora acutely dentate ;

anterior and intermediate tibize somewhat curved,

Length 21-21, breadth 115 milim. (¢ 2.)

Hab. Paxama, Bugaba (Champion).

Three specimens. In this insect the prothorax and elytra have a continuous (or

interrupted) submarginal white stripe, as in various Ambates ; the vestiture of the under

surface, too, is close and white. The finely striate elytra, with flat interstices, separate

C. ambatoides from C. clathratus and its allies.

31. Cyrionyx oblongoguttatus, sp.n. (Tab. XI. fig. 30.)

Subovate, obscure ferruginous; the prothorax and elytra mottled with minute ochreous and blackish scales,

the ochreous scales on the prothorax condensed into a curved, interrupted band on each side of the disc

and a small spot at the middle of the subapical constriction, the elytra each with a dense, oblong patch

of coarser, whitish scales on the disc towards the apex (extending from the third to the fifth stria); the

sparse vestiture of the head and under surface whitish, that of the legs ochreous. Rostrum arcuate, not

longer than the head and prothorax, moderately stout, rugulose at the sides, smooth along the centre, the

antenn inserted beyond the middle. Prothorax transverse, rather convex, rounded at the sides, strongly

constricted in front; densely, finely punctate. Elytra subtriangular, the humeri somewhat prominent ;

finely punctate-striate, the interstices rugulose and feebly convex. Ventral segments sparsely punctate,

1 depressed down the middle. Legs elongate; femora acutely dentate.

Length 24, breadth 15 millim. (d.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

One specimen. More elongate than C. biplagiatus, Faust, from Venezuela, the

rostrum smoother, the anterior coxe contiguous, the legs much longer, &c. The dense

oblong white patch on each elytron is similarly placed in the two species.

32. Cyrionyx squamans, sp. n.

Subrhomboidal, shining, piceous, the rostrum, antenne, femora, and tibie partly or entirely ferruginous ; the

vestiture dense and squamiform: the prothorax and elytra mottled with brown and ochraceous (or

whitish), the pallid scales on the prothorax condensed into a median and a submarginal vitta, and those

on the elytra sometimes clustered into an oblong spot on the fourth interstice before the middle and a

large patch or oblong streak on the disc towards the apex; the scales on the under surface and legs

wholly whitish or ochraceous. Rostrum stout, arcuate, longer than the head and prothorax, sparsely

the base, the antenns inserted at the middle. Prothorax

Elytra broad at the base,

Beneath closely punctate.

punctate, rugulose and faintly carinate at

transverse, conical, feebly constricted in front ; densely, finely punctate.

subtriangular ; finely punctate-striate, the interstices broad, flat, and rugulose.

Prosternal sulcus shallow. Legs rather stout ; femora sharply dentate.

Length 24-22, breadth 13-13 millim. ( 2.)

Hab. Panama, Bugaba (Champion).

2DD2

204. RHYNCHOPHORA.

Three specimens. The conical, fusco-bivittate prothorax, the dense, squamiform,

mottled vestiture of the elytra, and the long rostrum characterize C. sguamans. The

elytra are somewhat rounded at the sides. ‘The conical prothorax and the subcontiguous

anterior coxe separate the present species from C. twrbidus, which in other respects is

very similar. |

33. Cyrionyx nebulosus, sp. n.

Ovate, piceous, the antenne, femora, and tibie, and sometimes the rostrum also, reddish or ferruginous ;

densely squamose, the scales on the elytra oval and somewhat imbricate, those on the under surface also

coarse: varying in colour above according to the predominance of the brown or of the whitish scales, the

brown scales on the prothorax condensed into two vitte on the disc (sometimes reduced to four spots) and

a marginal stripe, the elytra clouded with brown and white, the white scales on the elytra usually

condensed into a short streak on the fourth interstice below the base and a patch on the disc at about

one-third from the apex; the vestiture of the under surface entirely whitish. Rostrum feebly arcuate,

moderately stout, long, in the 9 nearly reaching the apex of the metasternum, thickly, finely punctate,

the apical half smoother, especially in the @, the antenne inserted behind the middle. Prothorax

transverse, rounded at the sides, constricted and much narrowed in front, bisinuate at the base ; densely,

finely punctate. Scutellum small. Elytra considerably wider than the prothorax, the humeri not

prominent; finely punctate-striate, the interstices flat and densely punctulate. Beneath closely punctate ;

ventral segments 1 and 2 shallowly depressed down the middle in the g, Femora each with an

acute tooth.

Length 13-23, breadth 1-1} millim. (¢ 9.)

Hab. Mexico, Playa Vicente (Sallé), Teapa (H. H. Smith); Brrmisu Honpvuras, Rio

Sarstoon (Blancaneaux); GuateMata, Cahabon, San Juan, La Tinta, Tamahu, and

Purula in Vera Paz (Champion); Panama, Volean de Chiriqui, Caldera, Taboga I.

(Champion).

Apparently a common insect in Central America, and varying in the markings of

the upper surface. ‘The elytra are more finely striate than in C. turbidus, and the

vestiture is closer, the darker scales not clustered into numerous small spots.

general shape C. nebulosus is more ovate than the allied forms.

In its

34. Cyrionyx fuscovarius, sp. n.

Very like C. nebulosus and differing as follows:—The vestiture dense, yellowish-white, the upper surface

faintly mottled with white, the prothorax with four small fuscous spots on the disc, the elytra variegated

with irregular, sharply-defined, fuscous markings, an oblong patch near the suture below the base larger

than the rest; the prothorax obliquely narrowing from the base,

Length 1-22, breadth 14-14 millim, (¢ 9.)

Hab. Guatemaua, San Gerénimo and Capetillo ( Champion).

The description is taken from three specimens from San Gerénimo, the single

example, from Capetillo, being worn.

CYRIONYX.—NERTUS. 205

The following species was overlooked till it was too late to include it in the

Table :—

18(a). Cyrionyx exaratus, sp. n.

Rhomboidal, shining, black; the sides of the prothorax broadly, the under surface and legs sparsely, clothed

with very fine, hair-like, white scales, the scutellum also albo-squamose, the elytra almost bare.

Rostrum strongly arcuate, stout, a little longer than the prothorax, finely punctate, the apical half

almost smooth, the antenne inserted at the middle. Prothorax transverse, with the sides arcuately

converging from the base, strongly constricted in front; finely, somewhat closely punctate, the punctuation

becoming denser and confluent towards the sides and on the flanks. Elytra triangular, convex, compressed

at the sides; punctato-sulcate, the interstices almost smooth, narrow and very convex throughout.

Beneath closely, the abdomen sparsely, punctate; fifth ventral segment deeply foveate. Anterior cox

narrowly separated. Prosternum sulcate. Femora sharply unidentate. Tarsal claws connate, very

small,

Length 2,);, breadth 11 millim. (<¢.)

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith).

One specimen. Near C. exiguus, the prothorax much more sparsely punctate and

bare on the disc, the elytra more convex, with the interstices smoother and narrowly

raised throughout.

Sect. NERTIDES.

Nertides and Madopterides, Lacordaire.

This section includes a few Tropical-American genera, mainly recognizable by their

elongate general shape, and long, cylindrical, almost straight rostrum, with gradually

descending scrobes. ‘The tarsi are greatly dilated in the typical forms. Lasides is

provisionally placed in it for the present.

NERTUS.

Nertus, Schénherr, Gen. Cure. viii. 1, p. 76 (1844); Lacordaire, Gen. Col. vii. p. 240.

The few known members of this Tropical-American genus are of elongate, subelliptic

or fusiform shape, and have the general facies of some of the narrower species of

Cholus, from which they may be readily separated by the ascending mesothoracic

epimera, &c. The two Central-American forms have the second and third joints of

the anterior and intermediate tarsi very broadly, and those of the posterior tarsi less

strongly, dilated.

1. Nertus suturalis. (Tab. XII. figg. 3, 3a, 2.)

Nertus suturalis, Boh. in Schénh. Gen. Cure. viii. 1, p. 78°.

Hab. Mexico, Jalapa (Hoge).—Brazit, Minas Geraes '.

We have two females of this species from Jalapa, easily recognizable by the toothed,

unguiculate anterior tibie, and the dense line of coarse yellowish-white scales along

206 RHYNCHOPHORA.

the suture of the elytra and the base of the prothorax, the elytra also with an

interrupted, oblique fascia at one-third from the apex and various scattered streaks of

similarly-coloured scales on the anterior half of the disc and at the tip.

2. Nertus eneus, sp.n. (Tab. XII. fige. 4, 4a, 3.)

Elongate, narrow, fusiform, shining, black with a bright zneous lustre; somewhat thickly clothed with long,

coarse, hair-like, ochreous scales, the scales on the elytra clustered into fascicles over the whole of the

surface, the prothorax with a bare space down the middle. Head finely punctate; rostrum almost

straight, depressed at the base, rather longer than the head and prothorax, sparsely, finely punctate ;

joints 2-7 of the funiculus short, rapidly widening outwards, 3-7 transverse. Prothorax broader than

long, gradually narrowing from the base, the sides rounded anteriorly, feebly constricted in front; closely,

finely punctate, except along a narrow space down the middle. Elytra elongate, of about the same width

as the prothorax, narrowing from near the base, the apices narrow and separately rounded; finely

punctate-striate, the interstices flat, here and there with clusters of finer squamigerous punctures, for the

rest smooth. Prosternum shallowly sulcate, the intercoxal portion as wide as the apex of the rostrum.

Ventral segments sparsely, finely punctate, 1 flattened and rugulosely punctate down the middle,

5 shallowly arcuate-emarginate at the apex. Femora deeply excised towards the apex, the anterior pair

triangularly dilated. Tibie hairy at the apex, the anterior pair strongly sinuate within and with the

apical spur long and broadly dilated, the posterior pair bisinuate. Tarsi clothed with long hairs,

Length 8, breadth 3 millim. (<¢.)

Hab. Costa Rica, Savanillas de Pirris (Underwood).

One specimen. This insect is of about the size and shape as Cholus tenuis, but may

be readily distinguished from it by the ascending mesothoracic epimera, the slender,

almost straight rostrum, &c. The spur of the anterior tibic is developed into a long,

flattened process, a character probably peculiar to the male sex.

STRONGYLOTES.

Strongylotes, Schénherr, Gen. Cure. iii. p. 627 (1836) ; viii. 1, p. 74; Lacordaire, Gen. Col. vii.

p. 239.

Three species of this Tropical-American genus have been described, their dis-

tribution ranging from Mexico to Brazil. They mainly differ from Nertus in their

parallel-sided general shape.

1. Strongylotes brachialis,

Strongylotes brachialis, Boh. in Schénh. Gen. Cure. viii. 1, p. 75°.

Hab. Mexico (Mus. Imp. Russ.1),

Unknown to me. “Black, with rufo-testaceous antenne and legs, almost glabrous

above, squamose beneath; the prothorax thickly, rugosely punctate and feebly

carinate ; the elytra deeply striate, with narrow, convex, almost smooth interstices ;

the femora obtusely dentate.”

STRONG YLOTES.—TRACHYMEROPSIS. 207

2. Strongylotes parallelus, sp. n. (Tab. XII. figg. 5, 5 a.)

Elongate, narrow, cylindrical, flattened above, shining, black, the antenne in part and the tips of the tarsi

ferruginous ; beneath thickly, above sparsely, clothed with rather coarse, oblong, whitish scales. Head

finely punctate; rostrum slender, almost straight, about as long as the head and prothorax, sparsely,

finely punctate, the antenn:e inserted behind the middle, joint 1 of the funiculus as long as 2-4 united,

the club ovate. Prothorax longer than broad, narrowed at the apex, the sides parallel thence to the

base, the base feebly bisinuate ; closely punctate, except along a narrow smooth space down the middle.

Elytra parallel, about twice the length of the prothorax, and of nearly the same width, subtruncate at the

base, and conjointly rounded at the apex, leaving the pygidium narrowly exposed; punctate-striate,

the interstices flat and irregularly punctate. Beneath closely, the ventral segments more sparsely,

punctate ; prosternum slightly depressed down the middle, the anterior cox narrowly separated. Legs

slender; femora sublinear, unarmed, pilose beneath; tarsi narrow, the third joint strongly bilobed, the

claws connate at the base.

Length 54, breadth 1 millim. (9?)

Hab. Mexico, Ciudad in Durango, 8100 feet (Forrer).

Two specimens, both somewhat abraded. This species seems to be nearly related

to S. brachialis, which also has narrow tarsi, thus differing from S. squamans and

S. lemniscatus, Boh.

TRACHYMEROPSIS, gen. nov.

Mandibles straight on their inner edge; rostrum cylindrical, almost straight, as long as, or a little longer

than, the prothorax, the scrobes gradually descending ; eyes large, distant ; prothorax subcylindrical to

near the apex, without ocular lobes, bisinuate at the base, the median lobe short and truncate; scutellum

transversely subquadrate; elytra long, not wider than the prothorax; pygidium not visible ; prosternum

shallowly depressed down the middle anteriorly, the broad intercoxal portion flattened ; mesosternum

almost on a level with the prosternum, extending broadly backward between the middle coxe ; ventral

segments 1 and 2 long, subconnate ; anterior legs moderately long, the others shorter, the posterior

femora barely reaching the third ventral suture ; femora stout, abruptly excavate near the apex beneath,

unarmed; tibie short, slightly sinuate, the anterior and intermediate pairs strongly, the posterior pair

more feebly, unguiculate ; anterior and intermediate tarsi with joints 2 and 3 broadly dilated in both

sexes, but much more strongly so in ¢ than in 9; tarsal claws minute, connate; body narrow,

elongate-elliptic, polished, and in great part glabrous.

Type, 7. palmipes.

The type of this species is very like Azygides stygius, Pascoe, from Parana (which

has a single tarsal claw, and was placed by its describer near Parallelosomus), but

belongs to the “ Nertides,” as defined by Lacordaire, near Trachymerus. It has the

anterior and intermediate tarsi greatly dilated in both sexes, but more strongly so in

the male than in the female. The more widely separated anterior coxe, the sub-

connate first and second ventral segments, the short posterior legs, the minute tarsal

claws, and the subcylindrical shape of the body, separate Trachymeropsis from

Nertus.

1. Trachymeropsis palmipes, sp. n. (Tab. XII. figg. 6, 64, 3.)

Very shining, black, the antenne fusco-ferruginous; the elytra and under surface with scattered coarse white

scales, those on the elytra condensed into a short streak at the base of the suture, a few small spots on

the disc exterior to it, an irregular, interrupted post-median fascia, and several small spots near the apex ;

208 RHYNCHOPHORA.

the basal margin of the prothorax and the legs clothed with hair-like white scales. Head sparsely

punctate; rostrum rather slender, very sparsely, faintly punctate, the antenne inserted at the middle,

joints 3-7 of the funiculus widening outwards, more or less transverse, 1 nearly as long as 2-4 united,

the club oblong-ovate and rather small. Prothorax convex, broader than long, much narrowed in front,

the sides strongly rounded anteriorly and parallel behind ; very sparsely, minutely punctate, smooth along

the middle. Elytra very gradually narrowing from a little below the base, the apices divergent and

somewhat produced ; sharply striate, the striee with oblong scattered punctures, the interstices flat, with

small, widely-scattered clusters of fine squamigerous punctures, for the rest smooth. Ventral segments

very sparsely, finely punctate.

Length 33-53, breadth 13-13 millim. (¢ 9.)

Hab. Panama, Bugaba (Champion).

Eight specimens,

MADOPTERUS.

Madopterus, Schénherr, Gen. Cure. iii. p. 734 (1836) ; Lacordaire, Gen. Col. vii. p. 244.

A Tropical-American genus, including two known forms, a third being now added.

Madopterus is so closely related to Nertus that it must be referred to the same section

of the Barina. The tarsal claws at first sight appear to be single.

1. Madopterus cylindricus. (Tab. XII. fig. 7.)

Madopterus cylindricus, Boh. in Schénh. Gen. Cure. viii. 1, p. 81’.

Hab. Mexico},

The type of this insect (apparently a female) has been communicated by Dr. Sjéstedt.

It is very like the following species, but has the upper surface almost bare (a line of

white scales along the basal margin of the prothorax excepted), and the oblique

depression below the base of the elytra deeply impressed.

2. Madopterus conradti, sp.n. (Tab. XII. figg. 8, 8a, 3.)

Elongate, narrow, somewhat flattened above, shining, black; above (a broad bare space down the middle of

the prothorax, extending from the apex to very near the base, excepted) rather sparsely, and the under

surface thickly, clothed with elongate, coarse, yellowish-white or ochreous scales, those on the legs finer

and hair-like. Head closely punctate, with a small narrow fovea between the eyes ; rostrum cylindrical,

rather slender, almost straight, as long as the prothorax, sparsely punctate, smoother in the- 2, the

antenne inserted beyond the middle, joint 1 of the funiculus about as long as 2 and 3 united, the club

large, flattened, and oblong-ovate in the ¢, smaller in the 9. Prothorax much longer than broad,

obliquely narrowing from near the base, sparsely punctate, with a narrow, ill-defined, smooth space down

the middle. LElytra less than twice the length of the prothorax, parallel in their basal half ; deeply

punctate-striate, the interstices narrow, convex, irregularly and rather coarsely uniseriate-punctate.

Beneath closely punctate ; ventral segments 1 and 2 with a flattened bare space down the middle in

the g. Femora unarmed. Tarsal joints 2 and 3 broadly dilated ;

Length 62-63, breadth 2, millim. (¢ 9.)

Hab. GuateMata, Coban in Alta Vera Paz (Conradt).

claws connate to near the tip.

One pair. Closely related to the Mexican I. cylindricus, but clothed with coarse,

whitish or ochreous, elongate scales above and beneath.

IASIDES.—COLEOMERUS. 209

IASIDES, gen. nov.

Mandibles slightly emarginate on the inner side before the tip; rostrum cylindrical, nearly straight, slender,

as long as the head and prothorax, the scrobes gradually descending ; head globose ; eyes large, narrowly

separated above; prothorax long, conical, bisinuate at the base, the median lobe short and truncated ;

scutellum small, rounded, sulcate; elytra long, a little wider than the prothorax, narrowing from the

shoulders, which are armed with a small compressed prominence in front, the basal margin of each

elytron separately rounded and sharply raised inwards; pygidium not visible; prosternum deeply sulcate :

anterior coxse very narrowly, the others widely, separated ; mesosternal side-pieces largely developed ;

ventral segments 1 and 2 long, connate ; legs moderately long; femora sublinear, unarmed, the posterior

pair reaching the apex of the abdomen; tibie unguiculate ; tarsi with joint 3 strongly bilobed ; tarsal

claws long, subconnate at the base; body subfusiform, convex, polished, almost bare.

Type, L. cincticollis.

The single species from Panama on which this genus is based has the rostrum, &c.,

formed as in the “ Nertides,” amongst which it can be included for the present;

the anterior and intermediate tarsi, however, are not dilated as in Nertus, Trachy-

meropsis, &c.

1. Iasides cincticollis, sp.n. (Tab. XII. figg. 9, 9 a.)

Moderately elongate, very shining, black; the prothorax with a narrow space across the base, the sterna,

rostrum, and legs, and a small space at the sides of the ventral segments 3-5, clothed with hair-like

white scales, the rest of the surface bare. Head foveate between the eyes; rostrum rugulosely punctate

and carinate to near the tip, the antenne inserted just behind the middle, joint 2 of the funiculus nearly

as long as 1, the club acuminate-ovate. Prothorax slightly longer than broad, faintly constricted towards

the anterior margin, the base and apex very finely punctate, the rest of the upper surface smooth. Elytra

with rows of minute punctures, the sutural and marginal striz sharply-defined, the others just traceable,

the interstices smooth and flat. Beneath somewhat coarsely punctate, the ventral segments almost

smooth, 1 shallowly depressed down the middle.

Length 44, breadth 2 millim. (¢?)

Hab. Panama, Bugaba (Champion).

One specimen.

Sect. D1ORYM@RIDES.

Dyorwnérides (sic), Lacord.

The two genera referred to this section by Lacordaire are both represented in Mexico

or Central America, whence a third is now added. ‘They have the femora broadly

sulcate beneath for the reception of the tibize in repose (thus differing from nearly

all the Centrinides), and in some species of Diorymerus the anterior tibie are also

hollowed for the reception of the tarsi. The rostral canal is broad and very deep,

extending on to the anterior portion of the metasternum in Coleomerus. |

COLEOMERUS.

Coleomerus, Schénherr, Gen. Cure. ill. p. 817 (1836) ; Lacordaire, Gen, Col. vii. p. 218.

The two described species of Coleomerus are from Cayenne and the Antilles

respectively, and a third (from Cayenne) was noted by Lacordaire. Two others from

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, Judy 1907. 2EE

210 RHYNCHOPHORA.

Central America are now added. In this genus the very deep rostral canal extends

into the intercoxal portion of the metasternum, as in many Cryptorrhynchids, and it is

dilated on each side in front of the anterior coxe.

1. Coleomerus isthmicus, sp. n. (Tab. XII. figg. 10, 10a, 6.)

Coleomerus mexicanus, Solari, in litt.

Somewhat rhomboidal, flattened above, shining black, the antenne ferruginous at the base. Head closely,

finely punctate and also sulcate above between the very large, narrowly-separated eyes ; rostrum

moderately stout, longer than the prothorax, widened at the apex, thickly punctate ¢excépt along the

middle), smoother in the 2. Prothorax rapidly narrowing from the base, sparsely, minutely punctate,

the punctuation becoming coarser and closer at the sides. Scutellum very small, triangular. Elytra

subcordate, rapidly narrowing from a little below the base, depressed along the suture; very deeply

striate throughout, the strie feebly punctate, the interstices flat and almost smooth. Beneath rather

coarsely punctate, the punctures on the propleura closely placed. Legs short.

Length 24-4, breadth 12-23 millim.

Hab. Mexico (Hage, in coll. Solari); GuateMALA, Cahabon, Lanquin, .Chacoj, San

Juan and Panima in Vera Paz (Champion) ; Panama, Bugaba, San Feliz (Champion).

Numerous specimens, the one from Mexico much larger than the others. Near

C. lugubris, Boh. (the type of which I have seen), but with the prothorax and elytra

more rapidly narrowed from the base (the general shape being subrhomboidal, not

short ovate), the elytra more deeply striate. C. ebeninus, Boh., from the Antilles, is

said to have the head and rostrum smooth, &c.

2. Coleomerus rotundatus, sp. n.

Rotundate-ovate, flattened above, shining black. Head closely punctate, sulcate above between the very large,

narrowly-separated eyes ; rostrum rather slender, longer than the prothorax, sparsely punctate at the

sides only, flattened, smooth, and dilated at the apex; joint 1 of the funiculus nearly as long as 2-5

united, the club short-ovate. Prothorax sparsely, minutely punctate, except along a narrow space down

the middle, the sides finely strigose. Scutellum very small, subquadrate. Elytra rounded at the sides, as

well as at the broad apex, depressed along the suture; deeply striate, the striae conspicuously punctate

the interstices smooth and flat. Beneath sparsely punctate, the punctures on the ventral segments very

fine and those on the meso- and metapleura coarse, the propleura sinuato-strigose, hollowed for the

reception of the anterior femur. Legs very short.

Length 34, breadth 2 millim. (9 ?)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Smaller than C. luguéris, Boh., the rostrum more slender, the

propleura hollowed and strigose, the elytral strie deeper and conspicuously punctate,

the legs very short. ‘The more rounded outline, subquadrate scutellum, strongly

punctured strie, strigose propleura, and much shorter legs separate it from C. isthmicus.

COLEOMEROPSIS, gen. nov.

Prosternum strongly produced behind, covering the mesosternum, deeply sulcate to the apex, the posterior

portion again excavate for the reception of the apex of the rostrum ; metasternum unimpressed ; eyes not

approximate above ; prothorax deeply bisinuate at the base, the median Jobe almost covering the scutellar

COLEOMEROPSIS.—DIORYMERUS. 211

cavity, the scutellum.reduced to a minute point; pygidium not visible; femora deeply sulcate and

unarmed beneath ; tarsal claws connate at the base; first ventral suture strongly arcuate ; body elliptic,

flattened above, sparsely squamose.

This genus, based upon a single species from Guatemala, is closely related to

Coleomerus, differing from it in having the very deep rostral channel terminating in

the produced portion of the prosternum, the eyes well-separated, the median lobe of

the prothorax more produced, and the scutellum reduced to a minute point. The

rostrum in the unique example obtained was so tightly locked in the cavity that

the apical portion has unfortunately been broken off when an attempt was made to

lift it.

1. Coleomeropsis cribricollis, sp.n. (Tab. XIII. figg. 21, 21a.)

Nigro-piceous with a slight brassy lustre, shining, rather sparsely clothed with flavo-cinereous, hair-like scales,

the vestiture of the under surface and legs finer and cinereous. Head densely, finely punctate; rostrum

moderately stout, curved, about as long as the prothorax, rugosely punctate; eyes moderately large,

separated by about the width of the rostrum. Prothorax broader than long, conical, very feebly

constricted in front; densely, very coarsely punctate. Elytra gradually narrowing from the base,

somewhat rounded at the sides; punctato-sulcate, the interstices flat, asperato-punctate. Beneath

closely punctate. Legs very short.

Length 24, breadth 1} millim.

Hab. Guatemaa, San Isidro, near Mazatenango, Pacific slope, 1600 feet (Champion).

DIORYMERUS.

Diorymerus, Schonherr, Cure. Disp. Meth. p. 311 (1826) ; Gen. Cure. iil. p. 799; Lacordaire,

Gen. Col. vii. p. 219.

Diorygomerus, Gemminger and Harold, Cat. Col. viii. p. 2618.

A well-marked genus including a large number of Tropical-American forms, few of

which have been described as yet. Not a single species has hitherto been ascribed to

our region, whence twenty-five are now recorded, all of which are treated as new. ‘The

Central-American forms are mostly of small size, and, with a few exceptions, shining

black in colour, resembling small polished seeds. The species are difficult to

distinguish, but good characters are to be found in the armature of the femora and

tibiee, the form of the rostrum, the presence or absence of shallow basal fovez on the

prothorax, the shape of the scutellum, the striation of the elytra, and the sculpture of

the pleura. The prothorax is regularly convex in all the species now added, the male

of D. levipes excepted.

a. Femora unarmed. . ae

a. Intermediate and posterior tibie, and sometimes the anterior tibiz also,

dentate or angulate near the base externally.

a. Anterior femora not (except in Species 4 and 5) conspicuously widened

at the base.

a’. All the tibice denticulate on their inner edge ; scutellum transverse:

length of body 3-4 mm.

: 2 EE 2

212 RHYNCHOPHORA.

a‘, Elytra striate... . ee

6‘. Elytra with the sutural stria atly. distinct * .

é°, Anterior tibie only denticulate on their inner edge; scutellum trans-

verse; elytra with a fine sutural stria only: length of body 2? mm.

c*. Tibize not deuticulate on their inner edge.

c‘. Anterior tibize toothed or angulate externally near the apex, as well

as near the base, and widened for about their median third ; elytra

with the sutural stria only distinct.

a’. Body wholly black . . . . rere td

6°’. Body black, the elytra rufo-testaceous . ; oo

d‘, Anterior tibize hollowed externally, not widened in their median

third ; head deeply, transversely suleate ; scutellum subquadrate ;

elytra with the sutural stria only distinct . <a

. Anterior tibize distinctly toothed near the apex ectarnally, the

other tibize dilated and acutely dentate near the base; prothorax

and elytra conspicuously punctate, the elytra striate .

f’. Anterior tibiz (except in D. ornatus) not or feebly toothed near

the apex externally ; scutellum subquadrate or transverse.

c’. Elytra deeply striate throughout.

a’. Suture strongly depressed . 2. 2. 6 1 8 ee

6°. Suture feebly depressed . . 2. 1 ee ee ee

d’. Elytra finely striate throughout.

c’. Rostrum longer: length of body 3-43 mm.

d°, Rostrum very short: length of body 2 mm.

e’. 2 with the three inner striz only distinct.

*. Body wholly black . .

r *. Body black, the elytra with a rufous humeral patch.

jf’. Elytra with the two inner strie only distinct ; prothorax un-

impressed at base 2 2 se . en

g. Elytra with the sutural stria only distinct (the others more or

less traceable in D. nigripes) ; prothorax unimpressed at base :

length less than 3 mm.

g°. Body wholly black (the prothorax reddish in D. distriatus)

M. Body black, rufous above .

*. Body rufous, the legs and antenna black . .

b°. Anterior femora strongly dilated at the base; elytra finely striate ; ; body

rufescent above . . . - - 3 ws

6‘. All the tibie rounded near the base externally ; elytra with the sutural

stria only distinct . . . . rr ee :

b. Anterior femora feebly denticulate, the anterior tibiz also finely denticulate

externally towards the apex, all the tibiz angulate near the base ; prothorax

canaliculate; elytra striate: length of body 23 mm. wots .

c. Intermediate and posterior femora finely denticulate, all the tibiae snpulate

near the base externally ; elytra striate: length of body 2,4,-24 mm.

Species 1.

Species 2.

Species 3.

Species 4, 5.

Species 6.

Species 7.

Species 8.

Species 9.

Species 10.

Species 11, 12.

Species 13.

Species 14.

Species 15.

Species 16,

Species 17, 18.

Species 19.

Species 20.

Species 21.

Species 22.

Species 23.

Species 24, 2

* Exclusive of the marginal striz, which are not visible from above.

ia]

DIORYMERUS. 215

1. Diorymerus serripes, sp.n. (Tab. XII. figg. 11, lla, @; 114, ant. tibia.)

Subrhomboidal, convex, shining, black, the punctures of the under surface and legs each bearing a minute

scale, the tibise with long fine hairs on their inner edge. Head sparsely, minutely punctate, with a

distinct transverse frontal groove ; rostrum stout, moderately long, thickly punctate, longer and smoother

in the 2, the antenne inserted behind the middle, the club acuminate-ovate. Prothorax smooth or

faintly punctate, with some larger punctures along the basal margin and on the short anterior lobe, the

base slightly depressed on each side of the median lobe. Scutellum transverse. Elytra subtriangular,

depressed along the suture anteriorly, deeply striate throughout, the strize feebly punctate, the interstices

smooth. Pro-, meso- and metapleura coarsely, sparsely punctate. Ventral segments very sparsely

punctate, 1 deeply excavate in the middle in the ¢. Legs stout; femora shallowly sulcate beneath,

unarmed; tibie broad, sharply denticulate along their inner edge, the intermediate and posterior pairs

angularly dilated externally near the base and straight thence to the apex.

Length 33-4, breadth 24-24 millim. (¢ 9.)

Hab. Guatemata, Zapote (Champion) ; Panama, Volcan de Chiriqui (Champion).

Five specimens, all but one from Panama. Easily known by the sharply denticulate

inner edge of the tibie (the last tooth being about as long as the apical uncus) and

the very distinctly striate elytra. D. tibialis, Boh., from Brazil, must be an allied

form.

2. Diorymerus denticulatus, sp. n. (Tab. XID figg. 12, 12a; 124, ant.

tibia.)

Globose-ovate, shining, black, almost glabrous. Head minutely punctate, with a distinct transverse frontal

groove; rostrum very stout, about as long as the head and prothorax, sparsely punctate, the antennz

inserted near the middle, the club ovate. Prothorax smooth, sometimes with scattered coarse punctures

at the sides and along the anterior constriction, the base slightly depressed on each side of the median

lobe. Scutellum transverse. Elytra rapidly narrowing from the rounded humeri, the sides forming an

almost continuous outline with those of the prothorax; finely striate near the suture, the other strize

obliterated (except at the base), the inner strive with scattered punctures. Mesosternal side-pieces with

a few scattered very coarse punctures. First ventral segment broadly depressed down the middle in

the ¢. Femora deeply sulcate beneath, unarmed. Tibize broad, finely and more or less distinctly

denticulate along their inner edge (usually with a longer tooth near the apex), the anterior pair angularly,

and the others acutely, dilated on their outer edge near the base, the anterior pair also dilated at

the apex externally.

Length 3-4, breadth 23-2,% millim. (d -)

Hab. Muxico, Playa Vicente, Toxpam, Juquila (Sallé), Oaxaca (Hoge); BRivisy

Howpvras, Rio Hondo (Blancaneaux) ; Guarumaa, San Juan, Teleman San Gerénimo,

Zapote (Champion); Costa Rica, Azahar de Cartago (Underwood); Panama, Volcan de

Chiriqui, Bugaba, Caldera, Taboga I. (Champion).

A common insect in Central America, differing from D. serripes in its more globose

form, shorter and stouter rostrum, obsoletely striate elytra, deeply sulcate femora, and

more finely denticulate tibize. This last-ementioned character is somewhat variable,

but one or more teeth are always present towards the apex of the tibia, in addition to

the claw. ‘The elytral strie are sometimes scarcely traceable, except towards the base

and suture.

214 RHYNCHOPHORA.

3. Diorvmerus perlevis, sp.n. (Tab. XII. figg. 13, 13a; 134, ant. tibia.)

Short ovate, very convex, shining, black. Head almost smooth, transversely depressed and faintly foveate

between the eyes; rostrum short, exceedingly stout, strongly arcuate, sparsely punctate. Prothorax

smooth, depressed at the base on each side of the median lobe. Scutellum short, transverse, flat.

Elytra with a shallow sutural and two distinct marginal striw, these striae with fine scattered punctures,

the others obliterated. Beneath with a few scattered punctures. Legs sparsely punctate; femora

sulcate and unarmed beneath ; intermediate and posterior tibia almost straight, angularly dilated near

the base externally ; anterior tibie sinuous, obsoletely denticulate along their inner edge.

Length 22, breadth 13 millim. (<2?)

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

One specimen. Shorter and smaller than D. levissimus, the scutellum transverse,

the sutural and marginal striz of the elytra less distinct, the anterior tibiz obsoletely

denticulate within, the other tibize angulate at the base externally.

4, Diorymerus levipes, sp.n. (Tab. XII. figg. 14, 14a, g; 144, ant. tibia.)

Globose-ovate, shining, black. Head smooth, unimpressed ; rostrum short, curved, striate and faintly punctate

at the base, almost smooth in the 2; antennal club nearly as long as the funiculus. Prothorax depressed

at the base on each side of the median lobe, feebly constricted in front, smooth ; the disc feebly nodose

on each side, and the intervening space broadly flattened, in the ¢. Scutellum transverse. Elytra with

rows of scattered minute punctures, striate at the base and near the suture, the sutural stria more

coarsely punctate towards the base. Beneath very sparsely punctate, the meso- and metasternal side-

pieces smooth ; metasternum and first ventral segment broadly excavate down the middle in the ¢.

Femora and tibize with a few minute scattered punctures ; femora deeply sulcate and unarmed beneath, the

anterior pair widened at the base ; tibise broad, hollowed for the reception of the tarsi in repose, unarmed

within, the anterior pair angularly dilated on the outer edge near the base and also near the apex (the

median third widened), the intermediate and posterior pairs more or less angulate near the base externally.

Length 43-54, breadth 33-4 millim. (¢ 9.)

Hab. Nicaracua, Chontales (Belt, Janson: ¢ 2); Panama, Volcan de Chiriqui

(Champion: 3).

Four specimens, the one from Chiriqui (a ¢ ) much larger than the others and with

a distinct rounded prominence on each side of the flattened space on the disc of the

prothorax. The femora are almost smooth, and the anterior tibie are dilated on their

outer edge for rather more than the median third. The Chiriqui example is figured.

5. Diorymerus leviusculus, sp. n.

Globose-ovate, shining, black, the upper surface with a faint brassy lustre. Head very sparsely, minutely

punctate, obsoletely foveate in front, without transverse frontal groove; rostrum short, curved, moderately

stout, very sparsely punctate, smoother in the 2. Prothorax depressed at the base on each side of the

median lobe, almost smooth. Scutellum transverse. Elytra with rows of minute scattered punctures,

which become coarser at the base and along the impressed sutural stria. Beneath very sparsely, coarsely

punctate, the ventral segments 2—4 and the sides of the metasternum with a few scattered fine punctures

only ; metasternum and first ventral segment broadly excavate down the middle in the ¢. Femora

sparsely punctate, deeply sulcate and unarmed beneath; the anterior pair widened at the base. Tibia

broad, unarmed on their inner edge, dentate externally near the base, the tooth on the posterior pair

long and curved inwards, the anterior pair also dentate near the apex and narrowed thence to the tip.

Length 33-44, breadth 22-32 millim. (¢ 2.)

Hab. Mexico, Atoyac in Vera Cruz, Teapa (H. H. Smith); Guatemata, Coban

(Conradt), Panima and San Juan in Vera Paz (Champion).

DIORYMERUS. 215

Seven specimens. Extremely like D. fossulatus, but wanting the deep transverse

frontal sulcus; the rostrum not so stout, smoother, and a little longer; the under

surface and the femora more sparsely punctate; the anterior tibie dentate externally

towards the apex, as well as near the base. ‘The legs are not so smooth as in

D. levipes, and the tibie are more sharply toothed near the base externally; the

prothorax, moreover, is not flattened across the disc in the male.

6. Diorymerus erythropterus, sp.n. (Tab. XIT. figg. 15, 15a.)

Subrhomboidal, very convex, shining, black, the elytra rufo-testaceous. Head somewhat closely punctate,

shallowly, transversely depressed in front; rostrum short, moderately stout, closely punctate ; antennal

club as long as the funiculus. Prothorax smooth, the base and apex with a few punctures, the base

slightly depressed on each side of the median lobe. Scutellum subquadrate. Elytra subtriangular,

slightly depressed along the suture, the humeri rounded and rather prominent ; with rows of extremely

minute scattered punctures (the position of each of which is indicated by seriate coarse impressions

showing through from beneath), the sutural and marginal strie only well-defined, the others obliterated.

Beneath with very coarse scattered punctures, the ventral segments 2-5 much smoother, 1 broadly

depressed in the middle. Femora coarsely punctate, deeply sulcate and unarmed beneath. Tibise broad,

unarmed within, all angularly dilated on the outer edge near the base, the anterior pair also angulate

near the apex.

Length 32, breadth 24 millim. (¢.)

Hab. Guavemata, near the city 500 feet (Salvin).

One specimen. ‘The only Central-American species known as yet with the elytra

rufo-testaceous and the rest of the body black. ‘The elytra are almost smooth on the

surface (though there are rows of coarse punctures showing through from beneath),

the sutural stria, however, is deeply impressed.

7. Diorymerus fossulatus, sp. n. (Tab. XII. figg. 16, 16 a, 4.)

Globose-ovate, shining, black, the upper surface with a distinct brassy lustre, the anterior tibiz fringed with

short ochreous hairs at the tip. Head minutely punctate, with a very deep transverse frontal groove ;

rostrum stout, curved, short, about as long as the lateral portion of the prothorax, thickly punctate ;

antennse short, with a stout, ovate club. Prothorax depressed at the base on each side of the median

lobe, almost smooth, the anterior lobe finely punctate, the lower part of the flanks, and the lateral

portions of the meso- and metasternum also, with very coarse scattered punctures. Scutellum very

small, Elytra with rows of minute scattered punctures, striate at the extreme base and along the

suture and lower margin, the sutural stria with elongate, contiguous impressions. Intercoxal portion

of the meso- and metasternum, and ventral segments 1 and 5, densely and coarsely, and ventral segments

2-4 sparsely, punctate. Femora coarsely, closely punctate, deeply sulcate and unarmed beneath. Tibie

proad, unarmed on their inner edge, dentate externally near the base, the tooth on the posterior pair

long and curved inwards, the anterior pair hollowed and shallowly sulcate on their outer face.

Length 34-4, breadth 23-3 millim.

Hab, Guaremata, El Jicaro in Vera Paz (Champion).

Six specimens. Recognizable amongst the allied species with obliterated dorsal

stris by the very deep transverse frontal excavation, and the short, stout, thickly

punctate rostrum. The sutural stria is catenulate-punctate; the first ventral segment

is densely punctured ; and the anterior tibie are shallowly sulcate for the reception. of

the tarsi In repose.

216 RHYNCHOPHORA.

8. Diorymerus punctatus, sp.n. (Lab. XI. figg. 17, 174.)

Ovate, shining, black, obscure castaneous above. Head closely punctate, foveate between the eyes; rostrum

curved, rather slender, a little longer than the prothorax, thickly punctate, the antennz inserted at about

the basal third. Prothorax closely punctate, except along a narrow space down the middle, the base

slightly depressed on each side of the median lobe. Seutellum small, subquadrate. Elytra sharply

striate throughout, the strie with scattered fine punctures, the interstices sparsely, very distinctly

punctate, the suture somewhat depressed. Beneath, the ventral segments 2-4 excepted, closely, coarsely

punctate, the punctures on the flanks large and rounded. Legs short, stout, closely punctate ; femora

sulcate and unarmed beneath; anterior tibia dentate on the outer edge near the apex ; intermediate and

posterior tibiee broadly dilated and acutely dentate near the base externally.

Length 3, breadth 2 millim. (<¢ ?)

Hab. Panama, Bugaba (Champion).

One specimen. Distinguishable from the other small allied forms by the closely

punctured prothorax and the distinctly punctate elytral interstices. ‘The anterior tibie

are dentate near the apex externally, and the others are broadly dilated and have an

inwardly-curved tooth on the outer edge near the base.

9. Diorymerus latus, sp.n. (Lab. XII. figg. 18, 18a.)

Short, broad, subrhomboidal, shining, black. Head closely punctate, unimpressed in front; rostrum short,

moderately stout, feebly curved, slightly thickened towards the base, longitudinally rugulose. Prothorax

punctured along the basal margin only, the base depressed on each side of the median lobe. Scutellum

closely punctate, trapezoidal. Elytra subtriangular, strongly depressed along the suture to the apex,

sharply striate, the striae feebly punctate, the humeri smooth. Beneath (the ventral segments 2-4

excepted) coarsely punctate. Metasternum broadly and deeply excavate posteriorly. Legs short and

stout ; femora coarsely punctate, sulcate and unarmed beneath; tibie broad, the intermediate and

posterior pairs hollowed on the inner side towards the apex and dentate externally near the base, the

anterior pair angulate on the outer edge near the base.

Length 32, breadth 24 millim. (¢ ”)

Hab. Mexico, Sierra de Durango (Speyer, in coll. Solari).

A single specimen, in Signor A. Solari’s collection. A short, broad, robust form,

with deeply striate elytra, the suture strongly depressed, the rostrum short, the head

closely punctate, &c. D. datus is shorter and broader than D. serripes and the tibie

are not denticulate on their inner edge.

10. Diorymerus exaratus, sp.n. (Tab. XII. figg. 19, 19 a.)

Ovate, shining, black. Head finely punctate, transversely depressed between the eyes; rostrum very stout,

short, abruptly curved downward at the base, thickly punctate. Prothorax with the sides forming a

continuous outline with those of the elytra, strongly constricted in front, almost smooth, the base

depressed on each side of the median lobe. Scutellum small, subquadrate. Elytra triangular, produced

at the apex, deeply striate throughout, the strie feebly punctate, the interstices smooth, the suture

slightly depressed. Beneath sparsely punctate. Femora sulcate and unarmed beneath. Tibie almost

straight, each sharply angulate near the base externally.

Length 23, breadth 13 millim. (¢.)

Hab. Panama, Bugaba (Champion).

One specimen. The deeply striate elytra, the simply sulcate femora, and the sharply

angulate tibie separate this small species from most of its allies.

DIORYMERUS. 217

11. Diorymerus ovatus, sp.n. (Tab. XII. figg. 20, 20a.)

Globose-ovate, shining, black, Head somewhat closely punctate, with a shallow transverse frontal depression ;

rostrum short, stout, strongly arcuate, closely punctate, a little smoother in the Q. Prothorax smooth,

the anterior lobe and the produced basal portion finely punctate, the base slightly depressed on each side

of the median lobe. Scutellum oblong-subquadrate. Elytra finely striate, the striee becoming deeper at

the base and near the suture, all conspicuously punctate. Beneath, the propleura included, coarsely

punctate, the ventral segments 2-4 much smoother, 1 densely punctate, slightly depressed down the

middle in the ¢. Femora coarsely punctate, deeply sulcate and unarmed beneath. Intermediate and

posterior tibiee broad, straight, angularly dilated externally near the base; anterior tibie narrower,

curved outwards, subangularly dilated near the base.

Length 3,%,-44, breadth 25-31 millim. (¢ 2.)

Hab. Muxtco, Playa Vicente, Toxpam (Sallé), Cordova (Hége), Teapa (7. H. Sinith) ;

Guatemata, Cubilguitz, Chacoj, Capetillo (Champion); Costa Rica, Alajuela (Orosco,

in Mus. Brit.).

Ten specimens. The chief characters of this species are its convex, regularly

globose-ovate form, distinctly punctate-striate elytra, and oblong scutellum. D. ovatus

is not unlike Rhianus mexicanus, Pasc., but it is smaller and has the femora more

deeply sulcate beneath. The elytra are much more distinctly punctate-striate than

in D. leviusculus.

12. Diorymerus cribrarius, sp. n. (Tab. XII. figg. 21, 21 a.)

Ovate, shining, black. Head finely punctate, foveate in the middle above the eyes and flattened between

them ; rostrum short and stout, thickly punctate. Prothorax very finely, sparsely punctate (except along

a narrow smooth space down the middle), the punctures becoming a little coarser along the basal margin,

the flanks closely set with large, coarse, rounded impressions, the base unimpressed. Scutellum small,

subquadrate. Elytra depressed along the suture, finely striate, the strie feebly punctate, becoming

deeper towards the suture and almost obsolete on the outer part of the disc, the marginal strize catenulate-

punctate. Beneath, the flanks included, very coarsely, closely punctate, the ventral segments 3 and 4

and the base of 5 almost smooth. Legs short and stout, closely punctate; femora deeply sulcate and

unarmed beneath ; tibiw straight, the anterior pair feebly, the others more strongly, angulate near the

base externally.

Length 3-3,15, breadth 2-275 millim.

Hab. Panama, Bugaba (Champion).

Three specimens. ‘The extremely coarse punctuation of the pro-, meso-, and

metapleura (coarser than in D. ovatus), the distinct frontal impression, the un-

impressed base of the prothorax, and the straight tibie, separate D. cribrarius from

most of its allies.

13. Diorymerus laticrus, sp. n. (Tab. XII. figg. 22, 22 a.)

Short ovate, very convex, black, shining. Head finely punctate, not depressed between the eyes; rostrum

very short, stout, punctulate and longitudinally strigose. Prothorax conical, with excessively minute

scattered punctures, those on the anterior lobe and the produced basal portion coarser. Scutellum flat,

subquadrate. Elytra finely striate, the strie with small scattered puntures, becoming deeper towards

the suture and almost obsolete towards the sides. Pro-, meso-, and metapleura with very coarse

scattered punctures, the first ventral. segment coarsely, and rest of the under surface much more

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, November 1907. QPF

218 RHYNCHOPHORA.

finely, punctate. Legs stout, finely punctate; femora sulcate and unarmed beneath ; tibie: broad, the

intermediate and posterior pairs angulate externally near the base.

Length 2, breadth 13 millim.

Hab. Panama, Bugaba (Champion).

One specimen. One of the smallest of the Central-American forms, and distinguish-

able by the very short, stout rostrum, the finely striate elytra, and the broad tibiz, the

intermediate and posterior pairs only angulate. The prothorax is unimpressed at the

base, and the elytra are not depressed along the suture.

14. Diorymerus sexstriatus, sp. n.

Ovate, black, shining. Head sparsely, finely punctate, transversely depressed between the eyes ; rostrum very

stout, short, closely punctate in the g, smoother in the 2. Prothorax smooth, the median lobe only

with a few fine punctures, the base depressed on each side of it. Scutellum small, oblong. Elytra

depressed along the suture, each with the three inner strie deep, and the others (the two marginal ones

excepted) very faint or almost obsolete, these latter with scattered fine punctures. Beneath closely

punctate, the flanks of the prothorax almost impunctate. Legs closely punctate ; femora sulcate and

unarmed beneath; tibis almost straight, the intermediate and posterior pairs subangulate near the

base externally.

Length 31-31, breadth 2-21, millim. (d 2.)

Hab. Gvaremaa, Chacoj and San Juan in Vera Paz (Champion: 3 2); PANAMA,

Bugaba (Champion: @ ).

One specimen from each locality. Very like D. cribrarius, but with the prothorax

almost impunctate on the disc and flanks and the base depressed on each side of the

median lobe, the three inner strie of the elytra deep and without definite punctures,

the intermediate and posterior tibie less acutely dilated near the base, the ventral

segments 3 and 4 distinctly punctate.

15. Diorymerus ornatus, sp.n. (Tab. XII. fig. 23.)

Ovate, shining, black, the elytra with a large rufous humeral patch. Head sparsely punctate, transversely

depressed in front; rostrum short, arcuate, moderately stout, sparsely punctate, striate at the sides.

Prothorax slightly depressed at the base on each side of the median lobe, smooth, the median lobe only

with a few rather coarse punctures. Scutellum transverse. LElytra depressed along the suture, the first

three stria and the marginal one well-defined (the sutural stria deep), the others almost obliterated,

except at the base and apex, the strie with minute distantly-placed punctures. Beneath sparsely

punctate. Femora rather coarsely punctate, sulcate and unarmed beneath. Tibie broad, unarmed

within, all dentate on the outer edge near the base, the anterior pair also angulate near the tip.

Iength 3, breadth 2 millim. (<?)

Hab. Mexico (Dupont, in Mus. Brit.).

One specimen. The large rufous humeral patch and the almost smooth outer

portion of the dorsal surface of the elytra sufficiently distinguish D. ornatus. The

minute, scattered, seriate punctures are conspicuous on the rufous portion of the

surface, showing through from beneath. ‘The anterior tibie are angulate externally

near the base and apex.

DIORYMERUS. 219

16. Diorymerus quadristriatus, sp.n. (Tab. XII. fig. 24.)

Subovate, shining, black. Head very minutely punctate, transversely depressed between the eyes; rostrum

short, exceedingly stout, strongly arcuate, finely punctate. Prothorax with excessively minute scattered

punctures, those on the anterior lobe more distinct, the base unimpressed. Scutellum small, transverse.

Elytra slightly depressed along the suture, the first and second strie sharply defined, the others (the two

marginal ones excepted) fine or obsolete, the inner and outer strive faintly punctate. Beneath coarsely

(the sides sparsely) punctate, the ventral segments 2-5 much smoother. Legs short and stout; femora

closely punctate, suleate and unarmed beneath; tibie straight, each sharply angulate externally near

the base.

Length 13-2, breadth 1,4-14 millim.

Hab. Guatremata, Zapote (Champion); Panama, Volcan de Chiriqui (Champion).

Three specimens. A minute form, with the two inner strie of the elytra sharply

defined and the others (the marginal ones excepted) faint or obsolete, the rostrum

short and exceedingly stout, and all the tibie sharply angulate externally.

17. Diorymerus bistriatus, sp. n.

Ovate, shining, black, the prothorax rufo-piceous. Head sparsely, very minutely punctate, transversely

depressed between the eyes; rostrum short, stout, strongly arcuate, finely punctate and striolate.

Prothorax smooth. Scutellum small, subquadrate. Elytra depressed along the suture, with a sharply-

defined sutural stria only, the others (the marginal ones excepted) obliterated. Beneath (the ventral

segments 2-5 excepted) coarsely punctate, the propleura in great part smooth. Legs short and stout,

closely punctate; femora sulcate and unarmed beneath; anterior tibia sinuous, the others straight, all

sharply angulate near the base externally.

Length 23, breadth 13 millim. (3?)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Broader than D. longirostris, the rostrum short and stout, the

elytra wider below the base and depressed along the suture, the legs stouter,

the anterior tibia not so straight. Narrower than D. perlevis, the rostrum shorter

and not so stout, the prothorax unimpressed at the base, the elytra not depressed

along the suture and with a sharply-defined sutural stria, the tibie all sharply

angulate externally.

18. Diorymerus longirostris, sp.n. (Tab. XII. figg. 25, 25a.)

Ovate, narrow, very convex, shining, black. Head finely punctate, transversely depressed between the eyes ;

rostrum comparatively slender, longer than the prothorax, abruptly bent down ward near the base, finely

punctate, smoother beyond the middle, the antenne inserted at about the basal third. Prothorax almost

smooth, feebly constricted in front, unimpressed at the base. Scutellum small, oblong-subquadrate.

Elytra with a sharply-defined sutural stria only, the others (the marginal one excepted) obliterated, the

humeri not prominent and forming a continuous outline with the sides of the prothorax. Propleura

smooth, the meso- and metapleura, and first ventral segment, very coarsely punctate. Femora finely

punctate, sulcate and unarmed beneath. Tibie almost straight, all sharply angulate near the base

externally.

Length 2,,, breadth 1} millim. (@.)

Hab. Panama, Bugaba (Champion).

2FF 2

220 RHYNCHOPHORA.

One specimen. A minute, narrow, very convex, smooth form, with the sutural

stria only of the elytra visible, the rostrum comparatively long and slender, and

abruptly bent downward near the base, and all the tibie sharply angulate externally.

D. longirostris is relatively narrower than any of the other Central-American members

of the genus.

19. Diorymerus rubricatus, sp.n. (Tab. XII. figg. 26, 26 a.)

Ovate, very convex, shining, black, rufous above, the median portion of the head and the tip of the rostrum

more or less rufescent. Head with a few minute punctures, shallowly foveate or transversely depressed

between the eyes ; rostrum arcuate, very stout, short, finely punctate, the antennz inserted at about the

middle. Prothorax smooth. Scutellum very smal]. Elytra smooth, with a distinct sutural stria only,

the others obsolete or barely traceable. Beneath sparsely, coarsely punctate, the ventral segments

3 and 4 smoother. Femora finely punctate, sulcate and unarmed beneath. Tibiz almost straight, each

acutely dilated near the base externally.

Length 21, breadth 13 millim.

Hab. Panama, San Miguel in the Pearl Is. (Champion).

Two specimens. Shorter and more ovate than D. nigripes, the elytra with a single

(sutural) stria only, the rostrum short and stout, the tibia more acutely dilated near

the base, the body black beneath. Allied forms occur in South America.

20. Diorymerus nigripes, sp.n. (Tab. XII. figg. 27, 27 a.)

Rhomboidal, narrow, very shining, rufous, the antennw, eyes, and legs nigro-piceous. Head sparsely

punctate, transversely depressed between the eyes; rostrum curved, a little longer than the prothorax,

slender, sparsely punctate, the apical portion smoother and flattened, the antenne inserted behind the

middle. Prothorax rapidly narrowing from the base, smooth. Scutellum very small, subquadrate.

Elytra triangular, finely striate, the strie faintly punctate, becoming deeper towards the suture and

obsolete towards the sides, the sutural stria sharply defined. Beneath coarsely, sparsely punctate, the

ventral segments 2-5 smoother. Legs rather slender, sparsely punctate ; femora sulcate and unarmed

beneath ; tibie straight, each angularly dilated externally at the base.

Length 2,%,, breadth 12 millim. (92.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. A small, narrow, very shining, rufescent form, with blackish legs

and antenne, the tibie straight, and each angularly dilated on the outer edge near

the base. The sutural striais deep, the others very fine or obsolete.

21. Diorymerus erythronotus, sp. n. (Tab. XII. fig. 28, 28a, ¢; 284,

anterior leg.)

Subrhomboidal, shining, black, rufous above. Head finely punctate, convex; rostrum shorter than the

prothorax, feebly curved, moderately stout, dull, and rugulosely punctate to the tip in the ¢, the apical

portion much | more slender, shining, and sparsely punctate in the 9, the antenne inserted towards the

base. Prothorax with minute scattered punctures, which become coarser and closer on the anterior lobe

and along the basal margin, the base depressed on each side of the median lobe. Scutellum small,

subquadrate. Elytra subtriangular, finely, sharply striate, the sutural stria deeper, the strie feebly

punctate, the interstices each with minute scattered punctures along the middle, the suture slightly

DIORYMERUS. 221

depressed. Beneath (the ventral segments 3 and 4 excepted) coarsely punctate, the punctures on the

pro- and mesopleura large and rounded. Legs stout, closely punctate; femora deeply sulcate and

unarmed beneath, the anterior pair strongly dilated at the base; intermediate and posterior tibia dentate

and broadly dilated externally near the base, and narrowing thence to the apex, the anterior tibize

hollowed on the inner edge near the apex and somewhat curved externally.

Length 24-32, breadth 14-2} millim. (¢ @.)

Hab. Mexico, Frontera in Tabasco (Hége); British Honpuras (Blancaneaua) ;

GuaTeMaLa, Teleman in Vera Paz (Champion).

Six specimens. Easily recognizable by the rufescent upper surface, the dilated

intermediate and posterior tibize (which are also each armed with a stout, inwardly-

curved, dentiform projection near the base), and the basally widened anterior femora.

22. Diorymerus levissimus, sp. n.

Ovate, shining, black. Head smooth, transversely depressed in front; rostrum stout, strongly arcuate,

sparsely punctate, rugulose along the sides; joint 7 of the funiculus strongly transverse and forming

part of the club. Prothorax smooth, feebly constricted in front. Scutellum small, oblong-subquadrate.

Elytra with the sutural and marginal striz only present, the others obliterated, except at the base, the

marginal strie shallowly catenulate-punctate. First ventral segment closely punctate, unimpressed,

the rest of the under surface with a few widely scattered punctures. Femora sparsely punctate, sulcate

and unarmed beneath. ‘Tibie straight, rather narrow, unarmed within and rounded at the base

externally.

Length 3, breadth 2 millim. (2?)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. A very smooth form, with the sutural and marginal striz of the

elytra alone visible, the marginal strie catenulate-punctate, the scutellum oblong,

the legs rather slender, the tibie straight and not angulate externally near the base.

23. Diorymerus canaliculatus, sp. n. (Tab. XII. figg. 29, 29a; 294,

anterior leg.)

Ovate, black, shining. Head with a few minute scattered punctures, transversely depressed between the

eyes ; rostrum stout, fully as long as the prothorax, sparsely, finely punctate. Prothorax very sparsely,

minutely punctate, canaliculate down the middle, the base slightly depressed on each side of the median

lobe. Scutellum small, subquadrate. Elytra finely striate, the strie feebly punctate, becoming deeper

towards the suture and almost obsolete on the outer part of the disc. Beneath, the flanks of the

prothorax included, coarsely, sparsely punctate, the ventral segments more finely punctured. Legs

closely punctate ; femora sulcate beneath, the anterior pair feebly denticulate along the edges of the

sulcus; tibie almost straight, the anterior pair finely denticulate along their outer edge, the others

subangulate near the base externally.

Length 24, breadth 13 millim. (2?)

Hab. Panama, Bugaba (Champion).

One specimen. Near D. serrulatus, the anterior (instead of the intermediate and

posterior) femora feeebly denticulate beneath, the anterior tibiz also denticulate along

their outer edge (not sharply angulate at the base), the prothorax canaliculate, the

elytra scarcely depressed along the suture.

222 RHYNCHOPHORA.

24. Diorymerus serrulatus, sp. n. (Tab. XII figg. 30, 30a; 304,

intermediate leg.) :

Ovate, shining, black, the elytra sometimes rufo-piceous towards the sides. Head with a few minute

punctures, transversely depressed between the eyes; rostrum exceedingly stout, short, closely punctate.

Prothorax with a few very minute scattered punctures, and a line of coarser impressions along the basal

margin, the base depressed on each side of the median lobe. Scutellum small, subquadrate. LElytra

depressed along the suture, the inner strie deep, the others (the marginal ones excepted) faint or almost

obsolete, all distinctly punctate. Beneath, the flanks of the prothorax included, sparsely, coarsely

punctate. Legs short, closely punctate; femora sulcate beneath, the intermediate and posterior pairs

finely denticulate along the edges of the sulcus; tibia almost straight, all sharply angulate near the

. base externally.

Length 27,-23, breadth 12-12 millim. _

Hab. Mexico, Teapa (H. H. Smith), Tapachula (Hoge); Guarumana, San Juan in

Vera Paz (Champion); Nicaragua, Chontales (Janson).

Eleven specimens, the two from Chontales having the dorsal striz of the elytra

(the first excepted) only just traceable. Differs from all the small allied forms in the

finely denticulate lower outer edge of the intermediate and posterior femora.

The prothorax has a very distinct row of punctures along the basal margin, and

all the tibie are sharply angulate externally.

25. Diorymerus sulcatus, sp.n. (Tab. XII. figg. 31; 31a, hind leg.)

Ovate, shining, black, the tarsi, tip of the rostrum, and antenne (the club excepted) more or less ferruginous.

Head with a few minute punctures, transversely depressed between the eyes; rostrum arcuate, stout,

as long as the prothorax, sparsely punctate. Prothorax rounded at the sides (which do not form a

continuous outline with the sides of the elytra), strongly constricted in front, almost smooth, the base

depressed on each side of the median lobe. Scutellum small, subquadrate. Elytra depressed along the

suture, deeply striate throughout, the strie feebly punctate, the interstices smooth. Beneath very

sparsely punctate. Legs comparatively slender, sparsely punctate; femora sulcate beneath, the inter-

mediate and posterior pairs with the edges of the sulcus finely denticulate ; tibis almost straight, each

angulate near the base externally, the anterior pair somewhat elongated.

Length 24, breadth 13 millim. (9?)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Very like D. exaratus (of which it would at first sight appear to be

the female), but with the rostrum more slender and regularly arcuate, the prothorax

with the sides somewhat converging at the base, the elytra shorter and depressed

along the suture, the intermediate and posterior femora finely denticulate beneath, the

tibie less acutely angulate externally.

_ DIASTETHUS. 223

- Sect. CENTRINIDES *,

Centrinides, Lacordaire.

DIASTETHUS.

Diastethus, Pascoe, Ann. & Mag. Nat. Hist. (6) iv. pp. 323, 327 (1889).

Pascoe gives Centrinus tumidus, Boh., as the type of this genus, which will also have

to include a large number of Central- and S.-American forms, such as C. parellinus,

cyanipes, mexicanus, falcatus, ater, Boh., &c. Some of them are metallic (resembling

Eurhinus and certain forms referred to Cylindrocerus by Schénherr), others black,

castaneous, or ferruginous. The non-metallic species have the facies of a Diorymerus,

but differ from that genus in the imperfectly sulcate, toothed femora, the less excavate

pro-, meso-, and metasternum, &c. In well-developed males of D. aztecus and D. ater

the prosternum is not only armed with two spines, but has a deep, circular cavity

between them (as in Pascoe’s genus Camelodes); no importance, however, can be attached

to this character, as the spines and cavity are sometimes wholly wanting in individuals

of minor development of the same species. The various forms referred to Diastethus

agree in the following characters :-—

Mandibles almost straight on their inner edge, sometimes toothed on their outer edge beneath; rostrum more

or less elongate, strongly arcuate; antennal club ovate or oblong-ovate, with distinct sutures ; prothorax

narrow and tubulate in front, bisinuate at the base, often gibbous on the disc, without ocular lobes ;

scutellum transverse; elytra more or less triangular; pygidium hidden; anterior coxe moderately

distant; prosternum more or less sulcate down the middle, in the ¢ sometimes armed with two spines or

tubercles, and with a circular excavation between them ; metasternum binodose or not in front; femora

dentate and more or less sulcate towards the apex beneath ; tarsal claws approximate or subconnate at the

base ; body rhomboidal or subrhomboidal, polished or alutaceous, glabrous above, the scutellum sometimes

squamose.

a. Metasternum binodose and rather prominent in front; femora bidentate ;

intermediate tibie with a long spine on outer edge; prosterna! sulcus -

shallow: body metallic, polished, the under surface with dense patches of

whitish scales 2. 0. 0. eee ee ee

b. Metasternum flattened, not prominent in front.

a', Mandibles without tooth at the sides beneath.

a, All the femora uni- or hidentate.

a’. Tibize rounded at the base externally.

a‘, Body metallic, polished, the under surface with dense patches of

Species 1.

whitish scales. . . . ~ . Species 2.

b'. Body metallic, finely alutaceous, the under surface without patches

of scales. . . . ss Species 3.

* The whole of the members of this section have not yet been studied by me, and the term is only used

here for convenience of arrangement. The Centrinides, however, it may be noted, probably include nearly all

the Barids armed with prosternal spines in the male; but this character, unfortunately, cannot always be

relied upon, as the spines vary in development in the same species, and are sometimes wanting. The

scutellum, too, is free and the pygidium (with rare exceptions) covered in both sexes.

224 RHYNCHOPHORA.

ce‘. Body not metallic, polished.

a’, Legs smooth; elytra with convex interstices and very prominent

humeri; prosternum bituberculate in ¢: body rufo-testaceous,

glabrous. . . 1. 6 2 © 0 6 © © © © © 8 #6

6°. Legs punctured ; elytra with flattened interstices and non-

prominent humeri: body black, castaneous, or ferruginous, the

prothorax and elytra sometimes wholly or in part rufous.

a’. Scutellum squamose on each side; uncus of the anterior and

intermediate tibie dilatedin @ . ....+24.-.

6°. Scutellum glabrous; uncus of the tibiz normally formed.

a’, Elytra without transverse depressions on the disc *.

a*, Prothorax regularly convex on the disc.

a’. Body wholly black; prosternum sometimes bispinose in ¢.

6°. Body black, the prothorax rufous; prosternum unarmed

mgd... ee ew ew we et we lt le

6°. Prothorax gibbous on the disc.

c’. Tarsi narrow ; rostrum shorter and stouter; prosternum

bispinose, and often with a large deep circular cavity,

mg... 6 ew ew et ew we wt lt lw ke

d°’. Tarsi broader; rostrum very long and slender; pro-

sternum obsoletely bituberculate in ¢ . : :

6". Elytra with one or two transverse depressions on the disc;

prothorax regularly convex; prosternum bituberculate or

unarmed ing. oe ke we et 8 ee

6°. Tibize subangulate at the base externally ; prothorax regularly convex :

prothorax and a large humeral patch on the elytra rufescent .

b*. Anterior femora unarmed, the others unidentate; prothorax gibbous on

the disc.

c’. Elytra with transverse depressions : body castaneous or rufous .

d’, Elytra without transverse depressions: each eltyron with a large

rufescent humeral patch ee a re

6’. Mandibles with a sharp tooth at the sides beneath; femora with two

or more small teeth; prothorax regularly convex ; prosternum unarmed

in g: elytra wholly or in part rufous or rufo-testaceous

° e

1. Diastethus eurhinoides, sp. n. (Tab. XIII. figg. 1, la,

mediate tibia.) :

Species 4.

Species 5.

Species 6-11.

Species 12-14.

Species 15.

Species 16.

Species 17-19.

Species 20.°

Species 21.

Species 22.

Species 23-25.

2 ; 10, inter-

Rhomboidal, broad, shining, blue, the scutellum, rostrum, legs, and under surface more or less green ;

glabrous above, the prosternum, the sides of the metasternum, and the first two ventral segments in

part, densely clothed with narrow whitish scales. Rostrum long, rather slender, thickened, abruptly

bent, and punctate at the base, the antenne inserted at about the basal fifth, the club ovate. Prothorax

very broad, transversely convex, arcuato-explanate at the sides, with minute widely-scattered punctures,

those on the median lobe coarse, the oblique basal foves rather deep. Scutellum very broad, short.

Elytra broad, triangular, the suture slightly depressed anteriorly; sharply and finely striate throughout,

the inner striz faintly, the others distinctly, punctate, the interstices flat.

Beneath closely punctate,

* Except in no, 16 (D. gracilirostris),

DIASTETHUS. ; 925

the punctuation denser and very fine on the squamose portions of the surface; prosternal sulcus very

shallow ; metasternum binodose in front. Femora sharply dentate, the intermediate and posterior pairs

also with a minute additional tooth on the opposite edge of the shallow sulcus beneath. Intermediate

tibie armed with a very long spiniform tooth on the outer edge near the apex.

Length 8, breadth 54 millim. ( 9.)

Hab. Nicaragua, Chontales (Belt).

One specimen. Broader and larger than D. violaceus; the prothorax very broad,

and arcuato-explanate at the sides; the elytra not depressed along the whole length

of the suture, the strize deeper, those towards the suture less distinctly punctate; the

metasternum binodose and somewhat protuberant in front; the intermediate tibie

armed with a long tooth externally.

This species is nearly allied to the South-American D. tumidus (Boh.), which has

the metasternum bifurcate in front, &c. It is very like Cylindrocerus smaragdinus and

azureus, Boh., both of which have a long antennal club.

2. Diastethus violaceus, sp.n. (Tab. XIII. figg. 2, 2a, ¢.)

Rhomboidal, convex, shining, violaceous or blue, glabrous above; the prosternum, the sides and anterior

portion of the metasternum, the ventral segments 1 and 2 (except laterally), and the other segments at

the sides or apex, thickly clothed with narrow, whitish, striated scales, the rest of the under surface

almost bare. Rostrum long, thickened and abruptly bent at the base, sparsely punctate, smooth at the

tip, the antennz inserted at about the basal fifth, the club stout and ovate. Prothorax strongly rounded

at the sides to the narrow anterior lobe, sparsely punctate, the base obliquely depressed on each side of the

median lobe. Scutellum very broad, short. Elytra triangular, depressed below the basal margin and

along the suture ; punctate-striate, the sutural stria deep, the others fine and shallow, the punctures

oblong in shape and conspicuous throughout, the interstices flat. Beneath with the squamose portions of

the surface densely, finely punctate, the scattered punctures on the mesosternal side-pieces large and

foveiform, those on the propleura and metathoracic episterna coarse; prosternal sulcus shallow, the

anterior coxw widely separated; metasternum flattened, not prominent; ventral segment 1 very broadly

excavate and 5 depressed down the middle, the depression on 5 limited on each side by a small cluster

of scales, Femora sulcate and bidentate beneath, the anterior pair sometimes with a single tooth only,

Tarsal joints 2 and 3 broad.

Length 5-6, breadth 3-34 millim. (¢-)

Hab. Muxico (Sallé) ; Nicaracua, Chontales (Janson).

Three males, the one from Chontales being much larger than the others. The

violaceous colour, the very broad scutellum, the densely squamose portions of the under

surface, and the broad tarsi characterize D. violaceus. It is allied to D. politus (Germ.),

differing from that species in the finer squamosity of the under surface, the scales also

extending over a portion of the ventral surface.

3. Diastethus superbus, sp.n. (Tab. XIII. figg. 3, 3a, 3.)

Oblong-subrhomboidal, finely alutaceous, golden-green, the disc of the prothorax in great part and the outer

half of the elytra cupreous, the suture of the elytra violaceous, the under surface and legs green or

pluish-green, the tarsi violaceous, the rostrum of the 2 in great part and the antenne black; glabrous

above, the under surface and legs clothed with short whitish hairs. Rostrum long, thickened at the

base, punctate and alutaceous to near the tip in the ¢, longer, smoother, and shining in the 2 ; antennie

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, November 1907. 2G6G

926 RHYNCHOPHORA.

slender, inserted at about one-third from the base of the rostrum in the ?, and at some distance behind the

middle in the ¢, the club rather small, ovate. Prothorax gradually narrowing to the short anterior lobe,

moderately constricted in front, closely punctate. Scutellum strongly transverse. Elytra subtriangular,

rather long, punctate-striate, the striz fine, the punctures oblong in shape, the interstices flat, faintly

uniseriate-punctate. Beneath closely punctate, the punctures on the pleura coarse; prosternal sulcus

deep; ventral segment 1 broadly depressed in the middle in the d. Femora feebly bidentate. Tarsal

joints 2 and 3 broad.

Length 5-52, breadth 22-31 millim. (¢ Q.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One pair. A very beautiful insect, the cupreous portions of the upper surface

gradually shading off into golden, and the golden into green. The fine alutaceous

surface gives a silky appearance to the upper surface.

4, Diastethus sulcipennis, sp. n. (Tab. XIII. figg. 4, 4a, 3.)

Rhomboidal, shining, rufo-testaceous, the antennal club, knees, and tarsi infuscate; glabrous above and

beneath. Rostrum moderately stout, strongly arcuate, much longer than the head and prothorax,

smooth, the antenne inserted far behind the middle, the club acuminate-ovate. Prothorax conical,

strongly constricted in front, smooth, the median lobe truncate behind. Scutellum transverse. LElytra

triangular, the humeri broadly, subangularly dilated ; very deeply sinuato-striate, the strie obsoletely

punctate, the interstices smooth and strongly convex, the alternate ones a little broader and more raised

than the rest. Beneath almost smooth; prosternal sulcus very deep, narrow, the ridges terminating in

a blunt tubercle in front of each coxa, the coxe narrowly separated; ventral segment 1 depressed down

the middle. Legs smooth; anterior femora uni-, the others bidentate.

Length 72, breadth 44 millim. (<¢.)

Hab. Costa Rica, Tablazo 1700 metres (Biolley).

One specimen, captured in Oct. 1904. A remarkably smooth form (perhaps black,

when mature), with a conical prothorax, triangular, very deeply striate elytra, with

dilated humeri and convex interstices, and deeply, narrowly sulcate prosternum. ‘The

two short teeth on the intermediate and posterior femora are placed opposite one

another on the edges of the shallow sulcus. JD. christophori (Boh.) has similarly

convex elytral interstices.

5. Diastethus pilipectus, sp.n. (Tab. XIII. figg. 5, 5a, 3 ; 5b, anterior tibia, ¢ )

Centrinus pilipectus, Chevr. in litt.

Subrhomboidal, convex, shining, black, the antenne ferruginous; the scutellum on each side, the pro- and

metasternum, the anterior and intermediate coxe, the inner face of the anterior femora, and the apices

of the tibia, more or less densely clothed with long, golden, hair-like, striated scales; the rest of the

upper surface bare, the abdomen with scattered minute hair-like scales. Head sparsely, finely punctate;

rostrum strongly arcuate, long, slender, finely punctate at the base, and smoother thence to the apex, the

antenne inserted at about the basal third or fourth, joint 2 of the funiculus a little shorter than L

3 shorter than 2, the club rather long, acuminate-ovate. Prothorax convex, rounded at the sides, almost

smooth, the basal margin and the anterior lobe with scattered punctures. Scutellum large, transverse.

Elytra triangular, depressed along the suture, deeply striate throughout, the strie faintly punctate, the

interstices flat and almost smooth. Prosternal sulcus very shallow, squamose. Ventral segments

sparsely punctate. Femora shallowly sulcate beneath, and each armed with two more or less distinct

tceth, the outer tooth on the intermediate pair acute and larger than the inner one, which is sometimes

almost obsolete. Tibze sinuate, dilated at the apex.

DIASTETHUS. 227

¢. Prosternum unarmed; anterior tibie with the uncus at the apex developed into a long, broad, flattened,

truncated process, the intermediate pair also with a broad spoon-shaped process at the tip; first ventral

segment flattened in the middle.

Length 42-64, breadth 31-4 millim. (¢ 2.)

Hab. Mexico, Panistlahuaca in Oaxaca (Sallé); Guatemata, Panzos (Champion) ;

Nicaragua (Sad/é), Chontales (Belt); Costa Rica, Guanacaste (Pittier).

Eight specimens. The dense golden vestiture of the pro- and metasternum, the two

small clusters of scales on the scutellum, the very shallow prosternal sulcus, and the

peculiar armature of the anterior and intermediate tibie of the male distinguish

D. pilipectus.

6. Diastethus mexicanus. (Tab. XIII. figg. 6, 6a, 3.)

Centrinus mexicanus, Boh. in Schénh. Gen. Cure. viii. 1, p. 244 (nec Pascoe) *.

Centrinus subarmatus, Boh. loc. cit. p. 247°.

Broad, subrhomboidal, shining, black, glabrous above, the punctures of the under surface each bearing a hair-

like scale. Rostrum stout, rather short, the antenne inserted at about the middle. Prothorax smooth,

sometimes with minute scattered punctures at the sides, depressed at the base on each side of the median

lobe. Scutellum transverse. LElytra deeply striate, the strie feebly punctate and becoming shallower

towards the sides, the interstices smooth and flat, the sutural region slightly depressed at the base.

Prosternal sulcus broad and deep. Anterior femora flattened and unidentate, the others sulcate and

bidentate, beneath. Tuibice triangularly dilated near the apex externally, the anterior pair sinuate.

¢. Prosternum armed with two spines, which vary in length and are sometimes wanting; first ventral

segment slightly depressed down the middle; anterior tibiw feebly hollowed towards the apex within.

Length 4-61, breadth 27-43 milliim. (¢ 2.)

Hab. Mexico? (Mus. Brit.), Orizaba, Toxpam, Playa Vicente, Vera Cruz', Santa-

comapan, Panistlahuaca (Sal/é), Cordova (Hoge), Amula (H. H. Smith), Temax in

N. Yucatan (Gaumer); British Honpuras, Rio Sarstoon (Llancaneaux); GUATEMALA,

Panima in Vera Paz, Duefias (Champion), Chimaltenango (Conradt).

A broad form, with rather deeply punctate-striate elytra, the interstices of which are

broad, smooth, and flat throughout. The anterior femora are unidentate. I have seen

the types of the two insects described by Boheman, and am unable to separate them ;

that of C. subarmatus is also from “ Vera Cruz.” Pascoe’s C. mexicanus, the type of

his genus Rhianus, is a very different insect.

7. Diastethus ater. (Tab. XIII. fig. 7.)

Centrinus ater, Boh. in Schéuh. Gen. Cure. vill. 1, p. 251°.

Subrhomboidal, shining, black, the antenne sometimes ferruginous ; glabrous above, the punctures of the

under surface each bearing a minute hair-like scale. Antennal club ovate. Prothorax smooth or with

a few widely scattered minute punctures. Scutellum strongly transverse. Elytra triangular, at most

faintly depressed along the suture at the base; deeply striate throughout, the strie feebly punctate, the

interstices smooth and flat. Prosternal sulcus broad and deep, extending between the anterior coxe.

Femora each with two small teeth (one on each edge of the shallow groove beneath) and sometimes with

two or three minute denticles also.

2GG 2

228 RHYNCHOPHORA.

3. Prosternum armed with two short spines, which are sometimes wanting ; first ventral segment depressed

down the middle ; anterior tibia hollowed and ciliate towards the apex within.

Length 3-6, breadth 1,%-3? millim. (¢ 2.)

Hab. Mexico (Sommer!; ex coll. Flohr; Truqui, in coll. Fry), Acapulco, Cordova,

Jalapa, Oaxaca (Hoge), Toxpam (Sallé), Guerrero (Baron), Xucumanatlan, Omilteme,

Chilpancingo (H. H. Smith), Temax in N. Yucatan (Gawmer); GuateMata, San

Gerdnimo, Zapote, Duefias (Champion); Panama, Volcan de Chiriqni (Champion).—

Braziu },

This is the commonest of the Central-American forms related to D. mexicanus. It

is relatively narrower than that insect, and has the elytral stria deeply impressed and

less distinctly punctate, and each of the femora armed with two distinct teeth. The

single specimen from Duefias is only 3 mm. in length, and has the prothorax more

distinctly punctate than in any of the others we have received. One of the “types,”

communicated by Dr. Sjéstedt, is labelled “Texas (Dupont),” but there is perhaps

some mistake about this locality, Boheman giving Mexico and Brazil only.

8. Diastethus falcatus.

Centrinus faleatus, Boh. in Schénh. Gen. Cure. viii. 1, p. 246°.

Hab. Costa Rica, Reventazon, Plains of Santa Clara, 200 metres, Atlantic slope

(Biolley).—Cotomsia (Mus. Brit.); Braziu'.

The single ( ¢ ) specimen from Costa Rica (captured in Dec. 1904) referred to this

species is very like D. aztecus, but has the prothorax more flattened on the disc, the

elytra less depressed below the basal margin, and the tibie bowed at the base. The

prosternal spines of the male are moderately long; the sutural and marginal striz of

the elytra are deeply impressed, the others faint; the anterior femora are uni-, the

others bidentate. From JD. corvinus it differs in having the suture of the elytra

almost unimpressed, the rostrum stouter, the anterior femora unidentate, the tibie

less acutely dilated externally.

9. Diastethus corvinus, sp. n.

Subrhomboidal, broad, shining, black, glabrous, the ventral depression of the ¢ with a few golden, hair-like

scales. Head very sparsely punctate, transversely depressed in front ; rostrum strongly arcuate, long,

comparatively slender, sparsely punctate, sulcate and strigose at the sides (the antenne missing).

Prothorax strongly constricted in front, almost smooth, the short anterior lobe sparsely punctured, the

base shallowly foveate on each side of the median lobe. Scutellum very short, arcuate, produced into a

Jong, fine tooth in the middle behind, Elytra triangular, depressed along the suture and at the middle

of the base, the humeri rounded; the sutural and outer stria deep, the others faint, all finely punctate,

the interstices smooth. Beneath very sparsely punctate; prosternum armed with a conical prominence

in front of each coxa, the sulcus broad and deep ; ventral segment 1 depressed in the middle. Femora

each with two small teeth and several denticles. Tibie acutely, triangularly dilated on the outer edge

near the apex, feebly curved at the base, the anterior pair narrow, strongly sinuate, and with the

terminal spur widened towards the base.

Length 53, breadth 32 millim. (¢.)

DIASTETHUS. 229

Hab. Mexico (Mus. Brit.).

One male, labelled Centrinus subarmatus, S., in the British Museum, but differing

from that species in the longer and more slender rostrum, the basally depressed, more

feebly striate elytra, the bidentate femora, and the sharply dilated apices of the tibie.

It is nearly related to D. aztecus, but has a less convex prothorax, apically dilated

tibie, &c. The tibiee are narrower and less bowed at the base than in D. falcatus and

armed with a much sharper prominence near the apex.

10. Diastethus pilipes, sp. n. (Tab. XIII. figg. 8, 8a, 3.)

Oblong-subrhomboidal, shining, black, the antenne ferruginous, with the club darker ; glabrous above, the

pro- and metasternum and the anterior and intermediate coxe clothed with hair-like, yellowish-white,

striated scales, the punctures on the rest of the under surface each bearing a minute scale, the femora

beneath and the inner edge of the tibiw sparsely pilose or ciliate. Head sparsely punctate; rostrum

strongly arcuate, moderately long, thickly punctate, the antenne inserted at a little behind the middle,

joint 2 of the funiculus much shorter than 1, the club ovate. Prothorax convex, rounded at the sides,

sparsely, minutely punctate. Scutellum transverse. Elytra triangular, rather long, the humeri not very

prominent; sharply striate throughout, the strie feebly punctate, the interstices smooth and flat. _

Prosternal sulcus narrow, deep. Anterior femora uni-, the others bidentate.

¢g. Prosternum unarmed; metasternum and first ventral segment broadly depressed down the middle;

anterior tibise closely ciliate within from the base to the apex.

Length 51-64, breadth 2,9,-33 millim. (¢.-)

Hab. Mexico, Toxpam in Vera Cruz (Sallé) ; Costa Rica, Alajuela (Orosco).

Three males. More elongate than D. ater, the prosternum squamose and with a

narrower sulcus, the anterior femora with one distinct tooth only, the tibie more or

less ciliate within, the metasternum, as well as the first ventral segment, depressed in

the middle in the male. The Mexican specimens are labelled with the MS. name

Centrinus albopunctatus, Chevr., in the Sallé collection.

11. Diastethus brevis, sp.n. (Tab. XIII. figg. 9, 9a, 3.)

Subrhomboidal, short, convex, shining, black, the antennz and the tips of the tarsi ferruginous ; glabrous

above, the punctures of the under surface each beariug a minute hair-like scale, the lower surface of the

femora and inner edge of the tibie sparsely pilose. Head finely punctate ; rostrum stout, strongly

arcuate, comparatively short, sparsely punctate, the antenne inserted far behind the middle, the club

ovate and rather small. Prothorax convex, rounded at the sides, very sparsely, finely punctate.

Seutellum strongly transverse, short. Elytra triangular, the humeri moderately prominent, the suture

slightly depressed ; deeply striate throughout, the striz feebly punctate, the interstices flat and almost

smooth. Prosternal sulcus very shallow and ill-defined. Femora shallowly sulcate beneath, each armed

with two short sharp teeth. .

3. Prosternum unarmed ; first ventral segment with a deep transverse excavation.

Length 3%, breadth 23 millim. (d.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé).

One specimen. A species of comparatively short form, with a shallow, indeter-

minate prosternal sulcus, a small antennal club, a rather short, stout rostrum, a

230 RHYNCHOPHORA.

distinctly punctate prothorax, deeply striate elytra, with smooth flat interstices, and

bidentate femora.

12. Diastethus ruficollis. (Tab. XIII. figg. 10, 104, ¢.)

Centrinus ruficollis, Boh. in Schénh. Gen. Cure. iii. p. 781’.

Subrhomboidal, shining, black, the prothorax (the anterior lobe excepted) rufous above, the antennz some-

times obscure ferruginous; glabrous above, the punctures of the under surface each with a minate

hair-like scale. Rostrum thickly punctate in the ¢, much smoother in the 9. Antennal club ovate.

Prothorax almost smooth. Scutellum strongly transverse. Elytra triangular, deeply striate throughout,

the strie faintly punctate, the interstices flat, the sutural region not depressed. Prosternal suleus deep.

Femora bidentate, and sometimes with one or two small denticles also.

3. Prosternum unarmed ; first ventral segment depressed down the middle.

Length 5-64, breadth 3-4 millim. (d¢ 2.)

Hab. Mexico (Truqui, in coll. Fry; ex coll. Flohr), Cuernavaca (Sallé, Hoge),

San Andres Tuxtla, Toxpam, Playa Vicente, Vera Cruz, Yolos (Saidé), Chilpancingo,

Amula (H. H. Smith), Tehuantepec (Mus. Brit.); Nicaracua, Chontales ( Belt).—

Braziu }.

Not uncommon in Mexico and perhaps nothing more than a colour-variety of the

subsequently described D. ater. The elytra are deeply striate, and the femora are

bidentate and also more or less denticulate.

13. Diastethus sanguinicollis.

Cryptorhynchus sanguinicollis, Germ. Ins. Sp. Nov. p. 224’.

Centrinus sanguinicollis, Boh, in Schénh. Gen. Cure. ii. p. 779°; vill. 1, p. 243°.

Hab. Mexico, Toxpam (Sallé).—Braziu } 2 °,

There is a single small specimen of this species from Mexico in the Sallé collection.

It is very like D. rujficollis, but the elytral strie are faint on the middle of the disc

(the sutural and marginal strie only are deeply impressed), and the anterior femora

alone are distinctly bidentate.

14. Diastethus erythroderes, sp.n. (Tab. XIII. figg. 11, lla, 9.)

Subrhomboidal, convex, shining, black, the prothorax (the anterior lobe excepted) rufo-testaceous above, the

antenne fusco-ferruginous; glabrous above, the punctures of the under surface each with a minute

hair-like scale. Head sparsely, finely punctate; rostrum strongly arcuate, thickened towards the base

and flattened towards the tip, almost smooth, the basal portion only striato-punctate at the sides, the

scrobes extending forward to near the apex, the antenne inserted behind the middle, joints 2-6 of

the funiculus short, together about the same length as the stout, oblong-ovate club. Prothorax trans-

verse, strongly bisinuate at the base, almost smooth. Scutellum transverse. Elytra triangular, deeply

striate throughout, the strie faintly punctate, the interstices smooth and flat. Beneath sparsely, rather

‘coarsely punctate. Prosternal sulcus broad and deep. Anterior femora unidentate, the others sulcate

and bidentate beneath.

3. Prosternum unarmed ; first ventral segment broadly flattened in the middle.

Length 53-6, breadth 31-35 millim. (¢ 2.)

Hab. Muxico, Acapulco, Jalapa (Hége), Toxpam (Sallé).

DIASTETHUS. 251

Three specimens, one of which is immature. This is one of three species labelled

with the MS. name Centrinus erythroderes, Chevr., in the Sallé collection. It may be

recognized at once from the other forms with a red prothorax by the laterally sulcate

rostrum (the groove being continued forward to near the tip), the long, stout, antennal

club (as long as in some of the species of Cylindrocerus), and the unidentate anterior

femora.

15. Diastethus aztecus, sp.n. (Tab. XIII. figg. 12, 12@, ¢.)

Subrhomboidal, shining, black, the prothorax sometimes reddish, glabrous above, the scattered punctures of

the under surface each bearing a minute hair-like scale. Prothorax strongly rounded at the sides from

near the base to the narrow, tubulate, anterior portion, smooth, very convex or almost gibbous on

the disc. Scutellum transverse. Elytra depressed below the prominent basal margin, the sutural stria

and those along the lower margin deep, the other striz faint, the interstices smooth and flat, the basal

lobe rounded, the humeri rounded and rather prominent. Prosternal sulcus deep. Femora each with

two small teeth, the anterior pair sometimes with a single distinct tooth and two or three small

denticles.

¢. Prosternum armed with two spines of variable length, sometimes with a deep circular excavation between

them ; first ventral segment broadly flattened down the middle.

Length 33-6, breadth 23-32 millim. (¢ @.-)

Hab. Mexico, Acapulco (Hége), Oaxaca (Mus. Brit., Hoge), San Andres Tustla,

Toxpam, Panistlahuaca, Tehuantepec (Sadlé), Atoyac, Vera Cruz (H. H. Smith),

Temax in N. Yucatan (Gawmer); Guatemaa, Panzos (Champion); Panama, Caldera

in Chiriqui (Champion).

One of many similar shining black forms, and distinguishable by the very convex

disc of the prothorax, the faintly striate disc of the elytra (the sutural and marginal

striz alone deeply impressed), and the almost glabrous, sparsely punctate under

surface. ‘he prosternal spines of the male vary greatly in length, and in most of the

well-developed specimens the broadly sulcate prosternum has a very deep circular

excavation between them. ‘The three specimens from Chiriqui are very small, and

two of them have the prothorax rufescent.

16. Diastethus gracilirostris, sp.n. (Tab. XIII. fig. 13, ¢.)

Subrhomboidal, shining, fusco-castaneous, the rostrum and antenne obscure ferruginous; glabrous above and

beneath. Rostrum very long and slender, thickened at the base and widened at the apex, strongly

arcuate, the basal portion only punctate, the antenne inserted at about the basal fourth, joints 1 and 2

of the funiculus elongate, equal in length, 3-7 short, the club rather long, acuminate-ovate. Prothorax

broad, convex, somewhat gibbous on the disc, the sides arcuately converging from the base, abruptly

constricted in front, the base obliquely depressed on each side of the median lobe ; sparsely punctate, the

punctures becoming much coarser towards the sides. Scutellum transverse. LElytra triangular, slightly

depressed below the basal margin and along the suture anteriorly, the disc also with a faint transverse

depression extending across the interstices 3 and 4 before the middle; deeply striate, the strie faintly

punctate, the interstices smooth and flat, Beneath rather sparsely punctate, the punctures on the pro-,

meso-, and metapleura very coarse. Prosternum with the anterior portion long and declivous, slightly

depressed down the middle, and with a minute tubercle in front of each coxa, the coxe widely separated.

Ventral segment 1 flattened and alutaceous in the middle and here connate with 2. Femora clavate and

232 RHYNCHOPHORA.

feebly bidentate, the teeth on the anterior pair almost obsolete. Tarsi with joints 2 and 3 broadly

dilated.

Length 4, breadth 2? millim. (<.)

Hab. Mexico, Teapa (H. AH. Smith).

One specimen, evidently a male, the very long, slender, almost smooth rostrum

notwithstanding. D. gracilirostris may be known from all the allied forms by the

broadly dilated second and third tarsal joints. The prosternum is slightly depressed

between the minute ante-coxal tubercles.

17. Diastethus interruptus, sp.n. (Tab. XIII. fig. 14, ¢.)

Subrhomboidal, broad, shining, castaneous, the rostrum and legs blackish; glabrous above and beneath.

Rostrum long, moderately stout, smooth, the sides sparsely punctate at the base, the antenne inserted

far behind the middle, the club acuminate-ovate. Prothorax rounded at the sides anteriorly, strongly

constricted in front; the surface almost smooth, the anterior lobe with minute scattered punctures.

Scutellum transverse. Elytra triangular, much wider than the prothorax, depressed along the suture,

each with two abrupt, deep, transverse excavations on the disc (one below the shoulder, the other

beyond the middle); deeply striate throughout, the strie feebly punctate, the interstices smooth.

Beneath very sparsely punctate, the punctures on the pro-, meso-, and metapleura very coarse, those on

the abdomen fine. Prosternal sulcus broad and deep, the anterior coxee distant. Femora unidentate.

g. Prosternum armed with a rounded tubercle in front of each anterior coxa; first ventral segment

flattened.

Length 61, breadth 4 millim. (<¢.)

Hab. Guatemata, Cubilguitz in Alta Vera Paz (Champion).

One specimen. Not unlike D. didentatus, but with biplicate elytra, unidentate

femora, and a broadly sulcate prosternum, the prosternum armed with two blunt

tubercles in the male.

18. Diastethus bidentatus, sp.n. (Tab. XIII. fig. 15, 2.)

Subrhomboidal, convex, shining, black, the antenne ferruginous, the elytra and legs sometimes castaneous ;

glabrous above, the pro- and metasternum and the anterior and intermediate coxw somewhat thickly

clothed with yellowish-white or golden, hair-like, striated scales, the rest of the vestiture of the under

surface, and that of the legs, very sparse and fine. Head sparsely, finely punctate; rostrum long,

strongly arcuate, comparatively slender, thickened at the base, very sparsely punctate, the antenne

inserted far behind the middle, the club ovate. Prothorax rounded at the sides anteriorly, strongly

constricted in front, smooth, or with a few minute scattered punctures. Elytra triangular, depressed

along the suture and each with a transverse excavation on the inner part of the disc beyond the middle ;

deeply striate throughout, the striz obsoletely punctate, the interstices smooth and flat. Beneath sparsely

punctate. Prosternal sulcus narrow, glabrous. Anterior cox narrowly separated. Femora sulcate and

bidentate beneath. Tibia sinuate, dilated at the apex externally.

g. Prosternum unarmed ; first ventral segment broadly excavate in the middle.

Length 4,%,-7, breadth 27-4 millim. (¢ 2.)

Hab. Muxico (coll. Solari), Playa Vicente and Santacomapan in Vera Cruz (Salle :

é 2); Nicaragua, Chontales (Belt: 2); Panama, Bugaba (Champion: ¢ ).

Eight specimens, one only of which is a male. Near D. pilipectus, with which it

was confused in the Sallé collection, but readily recognizable by the glabrous scutellum,

DIASTETHUS. 233

the less densely squamose prosternum, with deeper glabrous sulcus, the plicate elytra,

and the simply unguiculate anterior tibie in both sexes. The examples with cas-

taneous elytra are probably immature.

19. Diastethus impressipennis, sp. n.

Very like D. bidentatus, but broader ; the prothorax a little less convex, with the sides arcuately converging

from the base; the elytra less depressed along the suture, and with a shallower transverse depression on

the disc beyond the middle ; the under surface more sparsely punctate, and with the scattered hair-like

scales finer; the prosternal sulcus a little broader; the femora sharply bidentate and rather deeply

sulcate beyond the middle.

Length 6-7, breadth 4-41 millim. (.)

Hab. Mexico (Mus. Brit.), Toxpam (Sallé), Cordova (Hége).

Three females, differing from the same sex of D. bidentatus as noted above. In its

general shape D. impressipennis agrees with D. mexicanus. From D. brevis and D. ater

it may be known by the transverse depression on each elytron beyond the middle.

20. Diastethus humerosus, sp. n. (Tab. XIII. fige. 16, 16a, 3.)

Rhomboidal, convex, shining, black, the prothorax rufescent, the elytra each with a very large, transverse,

testaceous, humeral patch which nearly reaches the suture; glabrous above and beneath. Rostrum

strongly arcuate, long, very sparsely, finely punctate. Antennal club stout, acuminate-ovate, as long as

joints 3-7 of the funiculus united. Prothorax convex, rapidly, arcuately narrowing from the base,

strongly constricted in front, the base obliquely foveate on each side of the median lobe; smooth.

Scutellum small, transverse. Elytra short, triangular, depressed along the suture, the humeri rounded

and forming a continuous outline with the sides of the prothorax ; sharply striate throughout, the striz

obsoletely punctate, the interstices smooth and feebly convex. Beneath coarsely punctate, the ventral

segments 2-5 smoother, 1 broadly depressed in the middle and 5 closely ciliate along the apical margin ;

prosternum with a broad, smooth, flattened space down the middle, which is bifoveate in the apical con-

striction, the anterior cox widely separated. Legs sparsely punctate ; anterior femora feebly, the others

distinctly dentate, the tooth on the posterior pair acute; tibize subangularly dilated on the outer edge

near the base, the anterior pair sinuous; tarsal joints 2 and 3 broad.

Length 22, breadth 13 millim. (d.)

Hab. Panama, David (Champion).

One male. Smaller than D. humeronotatus, the prothorax not so convex on the

disc, the elytra sharply striate throughout, the humeri less swollen, the testaceous

patch nearly reaching the suture, the rostrum less bowed at the base, the tibiz

subangular at the base externally.

21. Diastethus castaneus, sp. n. (Tab. XIII. figg. 17,174, 3.)

Subrhomboidal, short, castaneous or ferruginous, glabrous above. Rostrum (¢) strongly arcuate, long, the

basal portion thickened and coarsely punctate, the apical portion sulcate at the sides and somewhat

closely punctate, () longer and with the apical portion very much smoother, the antenne inserted far

behind the middle, the club oblong-ovate, stout. Prothorax rounded at the sides anteriorly, strongly

constricted in front, gibbous at the middle and obliquely depressed or sulcate on each side of this, the

surface finely punctate or smooth. Scutellum transverse. Llytra short, triangular, the disc slightly

swollen below the base and transversely depressed at the middle, the suture also depressed anteriorly, the

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, Movember 1907. 2HH

234 RHYNCHOPHORA.

humeri rounded and prominent; sharply striate throughout, the strie obsoletely punctate, the interstices

smooth and flat. Pro-, meso-, and metapleura coarsely, the rest of the under surface more finely,

punctate ; prosternal sulcus shallow, rather broad, the anterior coxe distant ; ventral segment 1 slightly

depressed in the middle in the ¢. Femora clavate, coarsely punctate, the intermediate and posterior

pairs sharply dentate, the anterior pair without distinct tooth. Tarsal claws small, subconnate.

Var. Smaller, the propleura almost impunctate.

Length 13-3,4,, breadth 13-27) millim. (¢ @.)

Hab. Mexico, Vera Cruz (Sailé); Guaremaua, San Juan and San Geronimo in Vera

Paz (Champion) ; Panama, Volcan de Chiriqui (Champton).

Four specimens, eight of which belong to the small, smoother form from Chiriqut.

This species may be known from its Central-American allies by the gibbous

prothorax, uneven elytra, which (owing to the depressed suture and the transverse

depression at the middle of the disc) appear to be swollen below the base, and

castaneous or ferruginous colour. | |

22. Diastethus humeronotatus, sp. n. (Tab. XIII. figg. 18, 18a, 2.)

Rhomboidal, short, convex, shining, black, the prothorax sometimes rufo-piceous, the elytra each with a very

large rufo-testaceous humeral patch; glabrous above and beneath. Rostrum very long, rather slender,

thickened, punctate, and abruptly bowed at the base in the 9, a little stouter and shorter in the ¢.

Antennal club long and stout, acuminate-ovate. Prothorax convex, almost gibbous at the middle of the

disc, arcuately narrowing from the base, strongly constricted in front; smooth, the base obliquely

foveate on each side of the median lobe. Scutellum transverse. Elytra broad, transversely cordate,

depressed below the basal margin and along the suture, the humeri broadly rounded, prominent; the

sutural and marginal striz deep, the others faint or obsolete, bearing scattered oblong punctures, the

interstices smooth and flat. Beneath coarsely punctate along the sides, the ventral segments very

sparsely, finely punctate; prosternum with a broad flattened space down the middle, which is hollowed

between the somewhat widely-separated anterior coxe. Anterior femora unarmed, the others sharply

dentate. Tarsal joints 2 and 3 broad.

Length 3-31, breadth 2;,-22 millim. (¢ 2?)

Hab. Panama, David and Caldera in Chiriqui (Champion).

Five specimens, all from the savana-region bordering the Pacific.

A species with broad, transversely cordate, obsoletely striate, elytra, each of which

has a large rufo-testaceous humeral patch. Smaller than the S.-American Centrinus

scapularis, Boh. (the type of which I have seen), the posterior lobe of the prothorax

much more convex, the rostrum more curved at the base, the intermediate and

posterior femora dentate, Kc. |

23. Diastethus rufipennis, sp. n. (Tab. XIII. figg, 19, 19a, 3.)

Rhomboidal, shining, black, the elytra rufous, in one specimen with the scutellar region and a large apical

patch, connected along the suture, black; glabrous above. Rostrum long, arcuate, thickened and

abruptly bent downward at the base, sparsely punctate, suleate at the sides to near the apex. Mandibles

with a sharp tooth on the outer edge beneath. Antennal club ovate. Prothorax short and broad

transversely convex, rounded at the sides, strongly constricted in front, the base almost unimpressed:

smooth. Scutellum transverse. Elytra triangular, depressed along the suture anteriorly ; deeply striate

throughout, the strize feebly punctate, the interstices smooth and flat. Beneath closely punctate, the

DIASTETHUS.—RHIANOPSIS. 239

punctures on the meso- and metapleura coarse; prosternal sulcus narrow, the coxs narrowly separated ;

ventral segment 1 excavate down the middle in the ¢. Femora denticulate and also armed with one or

two longer acute teeth. Tarsal joint 2 much narrower than 3.

Length 343-4, breadth 24-23 millim. (d 2.)

Hab. Mexico, Toxpam and Yolos (Sallé), Oaxaca (Hoge).

Four specimens. A small species, with short, broad prothorax, and sharply striate,

red elytra, the latter sometimes black at the base and apex. ‘The strie are broader

than in D. humerosus and the second tarsal joint is relatively narrower. ‘The

mandibles have a sharp tooth on the outer edge beneath. The teeth on the anterior

femora are shorter than those on the other two pairs. The following two forms are

closely related to D. rufipennis, but they cannot be satisfactorily included under that

species,

24, Diastethus pallidipennis, sp. n.

Very like D. rufipennis, but with the antenne, tip of the rostrum, tarsi, and apices of the tibi ferruginous,

. and the elytra testaceous ; the strie of the elytra deeper, with coarse seriate punctures showing through

from beneath, the interstices convex ; the mandibles with a tooth at the sides beneath.

Length 34-4, breadth 2} millim. (¢.)

Hab. Mexico, Yolos in Oaxaca (Sal/é).

Three males.

25. Diastethus obliquus, sp.n. (Tab. XIII. figg. 20, 20a, 2.)

Very like D. rufipennis, but with the antenne, tip of the rostrum, tarsi, apices of the tibie, and a very broad

oblique stripe on each elytron extending from the shoulder to the suture, ferruginous ; the strie of the

elytra deep, the interstices flat; the mandibles with a tooth at the sides beneath.

Length 32, breadth 275 millim. (@.)

Hab. Mexico (coll. Solari).

One female, evidently fully mature.

RHIANOPSIS, gen. nov.

Mandibles rather long, stout, without tooth on their inner edge, dehiscent at the apex; rostrum stout, curved,

elongate; prothorax narrow and tubulate in front, deeply bisinuate at the base; scutellum well-

developed, free, transverse; pygidium not visible; prosternum broadly sulcate, unarmed; mesosternum

depressed; all the cox very widely separated ; femora subclavate, almost smooth, sharply unidentate,

without trace of sulcus beneath, except at the apex; tibie strongly unguiculate at the apex; tarsi

rather narrow, the claws long and divergent ; body elliptic, polished, glabrous above,

Type, BR. ferrugineus.

This genus is based on a single species from Panama which is nearly related

to Rhianus and Diastethus. The very widely-separated anterior coxe, the rather

long, unemarginate, dehiscent mandibles, the non-sulcate, unidentate, almost smooth,

clavate femora, the broadly sulcate, unarmed prosternum, the long, divergent tarsal

claws, and the elliptic general shape are its chief characters.

2HH2

236 RHYNCHOPHORA.

1. Rhianopsis ferrugineus, sp. n. (Tab. XIII. figg. 22, 224, ¢ |

Ferruginous, the anterior lobe of the prothorax and the rostrum piceous; glabrous above, the punctures of

the under surface each bearing an extremely minute scale. Head finely punctate; rostrum thickly

punctate and striate to the tip, the antennx inserted at a little behind the middle, the club ovate.

Prothorax rather long, somewhat rounded at the sides, narrowing from the base, constricted in front,

excavate behind the eyes beneath; the anterior lobe conspicuously punctate, the other portion with

extremely minute scattered punctures. Scutellum shallowly sulcate. Elytra barely one-half longer

than the prothorax, and at the sides forming almost a continuous outline with it, rapidly narrowing

from a little below the base, depressed along the suture anteriorly ; finely punctate-striate, the interstices

feebly convex, strongly so at the apex, and with very minute scattered punctures. Beneath sparsely

punctate; prosternal sulcus very broad, reaching to the middle of the coxe ; ventral segment 1 flattened

in the middle. Anterior tibiee ochreo-ciliate within from near the base to the apex.

Length 5-6, breadth 23-31 millim. (¢.)

Hab. Panama, Bugaba (Champion).

Three specimens, all alike and apparently mature. A peculiar form, with the

femora almost smooth (as in Lissobaris), the prothorax excavate opposite the eyes

beneath, and the anterior tibie ciliate within ; the body very shining and almost bare;

the rostrum long, stout, and rugosely punctate to the tip.

LISSOBARIS, gen. nov.

Rostrum curved, stout, moderately long, the scrobes rapidly spreading and becoming confluent beneath, the

antenne inserted at the middle, the antennal club ovate and rather small; mandibles very short,

emarginate within, closely fitting when closed; eyes transverse ; prothorax abruptly narrowed and

tubulate in front, feebly sinuate at the base; scutellum small, free, transversely subquadrate; elytra

elongate-triangular; pygidium not visible; prosternum unarmed, sulcate down the middle, the groove

extending backward between the anterior coxw, the latter large, exserted, and narrowly separated ;

mesosternum depressed ; femora unarmed, clavate ; tibiee strongly unguiculate at the apex; tarsi rather

narrow, the claws long and divergent ; body convex, elongate-elliptic, polished, almost glabrous.

Type, L. nigropiceus.

The single species referred to this genus is very like Rhianopsis ferrugineus, but has

differently-formed mandibles, narrowly separated, large, exserted anterior cox, unarmed

femora, &c. The fully-developed male (as in various other Barids) has remarkable

sexual characters, but these are in great part wanting in the undeveloped form, which

is very like the female.

1. Lissobaris nigropiceus, sp.n. (Tab. XIII. fig. 23, 23a, ¢; 230, inter-

mediate leg, 3.)

Nigro-piceous, shining, glabrous above, the depressed portions of the under surface with a few ochreous hairs,

Head with scattered minute punctures; rostrum about as long as the head and prothorax, sparsely

finely punctate. Prothorax a little broader than long, the sides rounded anteriorly and parallel bebind,

the short anterior lobe narrow; the surface with excessively minute, scattered punctures. Seutalluss

shallowly sulcate. Elytra slightly wider than the prothorax, compressed at the sides, excavate along

the suture anteriorly, depressed on each side at the base, the humeri rounded, the apices separately

rounded ; very finely or obsoletely punctate-striate, the sutural stria deeper, the interstices flat from the -

base to the apical declivity, where they are sharply costate. Under surface and femora almost smooth.

Tibie finely ciliate within,

LISSOBARIS.—CYLINDROCERUS. 237

Fully developed ¢. Prosternum produced and somewhat raised posteriorly, armed with a small tubercle

behind each anterior coxa; prosternal sulcus dilated anteriorly into a very broad, laterally-rounded,

pilose depression ; metasternum and first two ventral segments very broadly excavate down the middle,

sparsely punctate, and also set with a few erect hairs, the fifth segment with a transverse, punctate,

sparsely pilose depression at the apex; femora sulcate and ochreo-ciliate along their lower face ; tibie

shallowly sulcate, carinate, and ochreo-ciliate within, the anterior and intermediate pairs somewhat.

bowed at the apex.

Undeveloped ¢. Prosternum less produced and unarmed behind the coxe; prosternal sulcus parallel-sided,

bare; first ventral segment broadly excavate, bare ; femora not sulcate beneath, glabrous; tibie sparsely

ciliate within.

Length 63-84, breadth 3-4,), millim. (¢ 2.)

Hab. Costa Rica, Carrillo (Underwood: 3); Panama, Volcan de Chiriqui 2500-

4000 feet (Champion: ¢ @).

Three specimens, evidently belonging to one species, the great difference in the two

males notwithstanding. The Chiriqui pair are much alike, except that the male

has the first ventral segment broadly excavate and the anterior tibize are curved at

the apex.

CYLINDROCERUS.

Cylindrocerus, Schéuherr, Cure. Disp. Meth. p. 810 (1826); Gen. Cure. iii. p. 789; viii. 1, p. 260

(part.) ; Lacordaire, Gen. Col. vil. p. 235.

The species of this Tropical-American genus, nine of which are now recorded from

within our limits, may be known by the following characters :

Rostrum elongate, strongly arcuate, becoming gradually or abruptly thinner and smoother in its apical half,

especially in the 9, the antenne usually inserted at (2) or at a little beyond (3) the middle, the

antennal club stout, elongate or oblong-ovate, at least as long as joints 3-7 of the funiculus united, the

sutures often obsolete ; mandibles rather long, straight on their inner edge, dehiscent at the tip; eyes

large; prothorax more or less conical; scutellum free, small, subquadrate ; elytra triangular; pygidium

not visible; prosternum more or less hollowed or excavate in the middle before the anterior cox,

bifoveate or with a deep transverse pit in front (to receive the apex of the scape in repose), in the fully-

developed ¢ armed with two spines or tubercles, and with a deep circular cavity between them ;

mesosternum depressed ; femora clavate, unarmed ; tibie in the typical forms feebly unguiculate, the

anterior pair in the ¢ often ciliate within ; anterior tarsi sometimes hairy in the ¢; tarsal claws long,

divergent ; body more or less rhomboidal, flattened above, polished, usually with squamose spots or lines,

above and beneath.

As thus defined, and as restricted by Lacordaire, Cylindrocerus includes Schénherr’s

first section only of the genus, all these species having the general facies of the

‘‘Madarides.” ‘The male-characters are well-marked, though varying in development,

but there is no appreciable difference in the length of the antennal club in the two

sexes.

a. Third elytral interstice with a line of ochreous scales reaching to near the

apex * ; pro-, meso-, and metapleura, and the sides of the abdomen,

with an interrupted series of ochreous spots.

* The fifth interstice is similarly marked in some of the S.-American forms,

258 : RHYNCHOPHORA.

a’. Prothorax about as long as broad ; elytra concave at base, without

transverse depressions; antennal club very elongate. . - . + + comma, Schonh.

b'. Prothorax broader than long; elytra flattened and with shallow trans-

verse depressions ; antennal club oblong-ovate, shorter . . . «+ - madaroides, sp. 0.

6. Third elytral interstice with an oval or oblong, ochreous or white, spot at

the base.

c'. Elytra sharply striate throughout ; antennal club oblong-ovate.

a®, Metapleura and sides of first ventral segment each with an ochreous

spot. . . . ... Coe ee ee ew ew ee glhabripectus, sp. n.

b*. Metapleura only with an oblong ochreous patch . . . - . ~ ~ subulatus, sp. 0. :

c’, Pro- and metapleura, prosternum, and sides of first ventral segment

with ochreous or white spots . . . . e . . “as . sguamipectus, sp. 0.

d’. Pro-, meso-, and metapleura, and sides of abdomen, with a coumplets

or interrupted white band, extending across the prosternum ; pro-

thorax rounded at sides. . 2. 2. - ee ee ee ee ee Ctrcumlineatus, Sp. 0.

e’, Pleura and sides of abdomen bare. . . . longipennis, sp. D.

da’, Elytra with the sutural stria sharply defined, the others faint or

obsolete; pro- and metapleura, and sides of second ventral segment,

with white spots; antennal clubelongate . . . 1 8 fs lissonotus, sp. 1.

c. Third elytral interstice and under surface bare: body more re clouigate, and

legs longer; antennal club elongate . . . . . . . « + « « « glabratus, sp. n.

1. Cylindrocerus comma. (Tab. XIII. figg. 24, 244, 3.)

Centrinus (Cylindrocerus) comma, Schéuh. Cure. Disp. Meth. p. 311°.

Cylindrocerus comma, Schénh. Gen. Cure. viii. 1, p. 261%.

Cylindrocerus signum, Boh. in Schéuh. Gen. Cure. iii. p. 790 (nec Fabr.) *.

Oblong-rhomboidal, somewhat concave above, black or nigro-piceous, shining; an attenuate stripe extending

down the basal two-thirds of the third elytral interstice, an interrupted series of spots and streaks along

the sides of the body beneath, a transverse patch on the middle of the first ventral segment in the ¢,

and a spot between the anterior coxe (), or a broad space down the middle of the prosternum ( 9),

densely clothed with oval, ochreous or yellowish-white scales, the rest of the surface almost bare. Head

finely punctate ; rostrum longer than the head and prothorax, stout and coarsely punctate to the points

of insertion of the antenne, then becoming slender and smoother to the tip, the apical portion abruptly

narrower and impunctate in the 9, the antenne inserted far beyond the middle in the ¢, and at a little

behind the middle in the 9, the antennal club greatly elongated and nearly as long as the funiculus in

both sexes. Prothorax subconical, about as long as broad, almost smooth, the anterior lobe with a few

fine punctures. Elytra triangular, very little longer than the prothorax, transversely depressed on the

disc anteriorly ; sharply punctate-striate, the interstices almost flat, the third closely, minutely punctate

to beyond the middle. Beneath very sparsely and minutely, the sides and the squamigerous portions of

the surface closely and rather coarsely, punctate. Prosternum bifoveate in the anterior constriction.

dg. Prosternum armed with two curved spines of variable length and with a deep circular cavity between

them ; ventral segment 1 with a shallow transverse squamigerous depression ; anterior tibiw strongly

ciliate within from about the middle to the apex ; anterior tarsi hairy beneath and dilated.

Length 4-54, breadth 1,9,—2,%; millim. (d 2.)

Hab. Panama, Tolé (Champion).—SoutH America, Cayenne and Brazil 2°,

The typical form of this insect has been found in abundance at Tolé; the vars. @

CYLINDROCERUS. 239

and y of Schénherr have a short additional streak on the fifth elytral interstice, and

they may belong to a different species. The sexual marks of distinction are strongly

marked in C. comma, the rostrum being abruptly narrowed from behind the middle,

and smooth thence to the tip, inthe ¢. The prosternal spines of the ¢ vary in length.

The antennal club is very elongate in both sexes.

2. Cylindrocerus madaroides, sp.n. (Tab. XIII. figg. 25, 25a, b, 3.)

Oblong-rhomboidal, flattened above, black, shining ; a stripe on the third elytral interstice (reaching to near

the apex), and sometimes a small spot at the middle of the fifth, and an interrupted series of spots and

streaks along the sides of the body beneath (often abraded or wanting on the propleura), densely clothed

with oblong or oval, ochreous scales, the rest of the surface almost bare. Head finely punctate ; rostrum

longer than the head and prothorax, stout, becoming more slender in its outer half, coarsely punctate at

the sides, almost smooth above and towards the apex, the antenne inserted near the middle in both

sexes, the club stout, oblong-ovate, about as long as joints 2-7 of the funiculus united. Prothorax

conical, broader than long, almost smooth. Elytra triangular, flat on the disc, with one or two shallow

transverse depressions towards the sides, the humeri rounded; sharply punctate-striate, the interstices

flat, the third closely punctate. Beneath sparsely, the sides of the meso- and metasternum coarsely,

punctate. Prosternum with a deep transverse excavation in front.

gd. Prosternum armed with two blunt spines or tubercles, and with a deep circular cavity between them ;

' ventral segment 1 broadly excavate in the middle; anterior tibiw sparsely ciliate within.

. Prosternum with a shallow transverse depression in the middle before the anterior cox,

Length 43-52, breadth 2-,-2% millim. (¢ @.)

Hab. Guatemata, Purula, San Gerénimo, Calderas (Champion).

Nine specimens. Closely related to C. comma, but with the antennal club shorter,

the prosternum with a deep transverse cavity in front (instead of two fovex), the spines

short, the rostrum very similarly formed in the two sexes, the prothorax more transverse,

the ochreous stripe on the third elytral interstice longer, &c.

3. Cylindrocerus glabripectus, sp. n.

Oblong-rhomboidal, flattened above, shining, black; an oval spot at the base of the third elytral interstice, a

spot at the middle of the metathoracic episterna, another at the sides of the first ventral segment, and

sometimes a smaller one at the sides of the fourth segment, thickly clothed with ochreous or whitish

scales, the rest of the upper and under surfaces almost bare. Head with a few minute punctures ;

rostrum much longer than the head and prothorax, stout and rather coarsely punctate in its basal half,

the apical half more slender and almost smooth, the antenne inserted at (Q) or a little beyond (¢) the

middle, the antennal club about as long as joints 2-7 of the funiculus united. Prothorax conical, broader

than long, strongly constricted in front, almost smooth. Elytra triangular, flattened, and with one or

two shallow transverse depressions on the disc; sharply striate, the strie feebly punctate, the interstices

almost flat, the propleura almost smooth. Beneath very sparsely and minutely, the sides of the meso-

and metasternum coarsely, punctate. Prosternum very deeply bifoveate in front and more or less

excavate in the middle before the anterior coxe.

3. Prosternum in the fully-developed form armed with two conical tubercles, and with a circular fovea

between them; first ventral segment with a transverse, large, shallow, closely punctate, finely pilose

depression in the middle behind; anterior tibie ciliate within, the anterior tarsi sometimes hairy.

Length 33-5, breadth 2-2} millim. (¢ 2.)

Hab. Mexico, Cordova (Sallé, Hige), Jalapa (Hoge); Guatemata, Cubilguitz and

Sinanja in Vera Paz, Cerro Zunil (Champion) ; Panama, Volcan de Chiriqui, 4000 feet

(Champion).

240 RHYNCHOPHORA.

Three males and five females. Distinguished amongst its allies by the glabrous,

deeply bifoveate prosternum, the flattened, uneven, sharply striate elytra, and the

ochreous or white spot on the metathoracic episterna and the first ventral segment.

4. Cylindrocerus subulatus, sp.n. (Tab. XIII. figg. 26, 26a, 2.)

Very like C. glabripectus, but with the ochreous scales on the under surface condensed into a single dense

elongate patch on the metathoracic episterna, and those at the base of the third elytral interstice into an

oblong patch ; the rostrum more abruptly narrowed, and with the smooth apical portion comparatively

slender, the basal portion coarsely punctate, the antenne inserted at a little behind the middle, the

antennal club more elongate, nearly as long as the funiculus ; the ventral surface glabrous, and very

sparsely, finely punctate throughout; the prosternum with two smaller fovee in front and slightly

depressed in the middle before the coxe.

Length 44, breadth 25 millim. (92.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen, evidently distinct from C. glabripectus.

5. Cylindrocerus squamipectus, sp. n.

Oblong-subrhomboidal, flattened above, shining, black; an oblong spot at the base of the third elytral

interstice, a spot above each anterior coxa, the middle of the prosternum, an elongate patch on the

metathoracic episterna, and a rounded spot at the sides of the first ventral segment, thickly clothed with

yellowish-white scales, the rest of the under surface with a few minute whitish scales. Head minutely

punctate ; rostrum much longer than the head and prothorax, stout and coarsely punctate in its basal

half, the apical half smooth and more slender, the antennz inserted at (9) or a little beyond (¢ ) the

middle, the antennal club stout, oblong-ovate, as long as joints 2-7 of the funiculus united. Prothorax

conical, slightly broader than long, sparsely, minutely punctate. Elytra triangular, flattened, and with

two shallow transverse depressions on the disc; sharply striate, the striz feebly punctate, the interstices

flat. Beneath closely punctate, the propleura smoother. Prosternum with two deep more or less

confluent foves in front and shallowly depressed down the middle to the anterior coxe.

g. Prosternum in the fully-developed form armed with two conical tubercles, and with a deep excavation

between them; first ventral segment very broadly excavate in the middle.

Length 45-51, breadth 2,1,-25 millim. (¢ 2.)

Hab. Mzxico, Omilteme in Guerrero 8000 feet (H. H. Smith), Cordova (Hoge).

Seven specimens. Very like C. glabripectus, but with an interrupted transverse,

curved space in front of the anterior coxee, an oblong patch on the metasternal side-

pieces, and a spot at the sides of the first ventral segment, squamose; the under

surface more closely punctate ; the ventral depression of the ¢ larger, the anterior

tibixe not ciliate in this sex. Allied unnamed S.-American forms are contained in the

British Museum collection.

6. Cylindrocerus circumlineatus, sp.n. (Tab. XIII. figg. 27, 27a, ¢.)

Subovate, flattened above, shining, black; an oblong spot at the base of the third elytral interstice, a complete

or more or less interrupted stripe along the sides of the body beneath, the two stripes connected across

the prosternum, and the sides of the metasternum, densely clothed with rather coarse white scales, the

rest of the under surface and the legs with scattered, minute, narrow scales. Head minutely punctate ;

rostrum long, moderately stout, becoming more slender towards the apex, finely punctate, the apical half

CYLINDROCERWUS. 241

smooth, the antenne inserted at about the middle, the antennal club stout, oblong-ovate, nearly as long

as joints 2-7 of the funiculus united. Prothorax transverse, rounded at the sides anteriorly, strongly

constricted in front, smooth. LElytra triangular, flattened on the disc, sharply striate, the stris feebly

punctate, the interstices flat. Beneath closely punctate, a broad space down the middle of the metasternum

and abdomen smoother. Prosternum bifoveate in front.

$. Prosternum armed with two short spines, and with a deep circular cavity between them ; first ventral

segment flattened or depressed in the middle.

Q. Prosternum unimpressed in front of the anterior coxe.

Length 3-4, breadth 11-2 millim. (¢ 2.)

Hab. Mexico, Toxpam (Sallé: ¢); Guatemata, Cahabon in Vera Paz (Champion:

2); Nicaragua, Chontales (Belé: ¢ 2); Panama, Bugaba (Champion: ¢ ).

Six specimens, perhaps belonging to more than one species. The pair from

Chontales may be taken as the types, and both have the white pleural band interrupted.

In the two males from Bugaba this band is complete, whereas in the other four

examples it is more or less wanting on the first ventral segment. The single male from

Mexico has a deeper ventral depression than the others. The prothorax is more

constricted in front and more rounded at the sides than in the allied forms.

7. Cylindrocerus longipennis, sp.n. (Tab. XIII. fig. 28, 2.)

Elongate-rhomboidal, flattened above, shining, black; the elytra with a dense rounded patch of elongate,

narrow, whitish scales at the base of the third interstice, the rest of the surface almost bare. Head

closely punctate; rostrum longer than the head and prothorax, rather slender, thickened and closely

punctate towards the base, the apical half smooth, the antenne inserted at about the middle, the antennal

club oblong-ovate, stout, as long as joints 2-7 of the funiculus united. Prothorax conical, broader than long,

rather strongly constricted in front; sparsely, minutely punctate. Elytra about two and one-third times

the length of the prothorax, triangular, here and there transversely depressed on the disc, the humeri

rounded; deeply striate, the striz feebly punctate, the interstices smooth and flat. Beneath somewhat

closely, the sides of the meso- and metasternum more coarsely and densely, punctate. Prosternum deeply

bifoveate in front and broadly depressed thence to the anterior coxe, the latter rather narrowly separated.

Posterior femora not reaching the apex of the abdomen.

Length 54, breadth 24 millim. ( 2.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One specimen. The elongate, uneven elytra, the patch of white scales at the base

of the third elytral interstice, the immaculate under surface, the deeply bifoveate

prosternum, and the stout, oblong-ovate antennal club distinguish C. longipennis. ‘The

prosternal depression is shallow and without definite margin. ‘There are a few white

scales on the metathoracic episterna and the sides of the abdomen, perhaps vestiges

of spots.

g. Cylindrocerus lissonotus, sp. n. (Tab. XIII. figg. 29, 29 a, 4, 3.)

Oblong-rhomboidal, flattened above, very shining, black; an oval spot at the base of the third elytral

interstice, a curved transverse streak in front of each anterior coxa, an elongate streak on the metathoracic

episterna, and a spot at the sides of the second ventral segment, thickly clothed with pure white scales,

the rest of the under surface also with a few scattered smaller white scales. Head very finely punctate ;

rostrum longer than the head and prothorax, stout, becoming more slender and almost smooth in its

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1908, OI

242 RHYNCHOPHORA.

apical half, the basal half coarsely punctate at the sides, the antenne inserted near the middle, the

antennal club elongate, nearly as long as the funiculus. Prothorax conical, a little broader than long,

strongly constricted in front, smooth. Elytra triangular, flattened on the disc and depressed along the

suture ; the sutural and marginal striz sharply defined, the others faint or obsolete and their position

indicated by rows of fine punctures, the interstices flat to near the apex. Beneath sparsely and very

finely, the sides of the meso- and metasternum and of the abdomen coarsely and closely, punctate.

Prosternum bifoveate in front and excavate down the middle before the anterior coxe, the latter

distant.

3. Prosternum in the fully-developed form armed with two short spines and with a deep circular cavity

between them; first ventral segment flattened and somewhat closely punctate in the middle.

Length 34-42, breadth 13-21 millim. (¢ 9.)

Hab. Mextco, Toxpam (Sallé); GuatemaLa, Chacoj in Vera Paz (Champion) ;

Nicaraeua, Chontales (Belt); Costa Rica, Cafias Gordas (Pittier); Panama, Bugaba,

Volcan de Chiriqui (Champion).

Numerous examples, one only of the males having the prosternum bispinose and

with a deep median excavation. ‘The obliterated or faint dorsal striz (the sutural one

excepted), the three pure white marks at the sides of the body beneath (in addition to

the one at the base of the third elytral interstice), and the elongate antennal club,

readily distinguish C. lissonotus.

9. Cylindrocerus glabratus, sp.n. (Tab. XIII. figg. 30, 304, ¢.)

$. Hlongate-rhomboidal, flattened above, shining, black; glabrous above and beneath, a small cluster of

narrow white scales at the sides of the first ventral segment excepted. Head finely punctate; rostrum

very long, moderately stout and rather coarsely punctate in its basal half, the apical half much smoother

and more slender, the antenne inserted at about the middle, the antennal club nearly as long as joints

2-7 of the funiculus united. Prothorax almost as long as broad, conical, sparsely, minutely punctate,

except along a narrow space down the middle. Scutellum oblong-subquadrate. Elytra triangular,

flattened and with two shallow transverse depressions on the disc; sharply striate, the striz feebly

punctate, the interstices flat. Meso- and metasternum coarsely, the sides of the abdomen more finely,

punctate, the rest of the under surface almost smooth. Prosternum armed with two long spines, and

with a large, extremely deep, circular excavation between them, the two foves in front deep and

coalescent. First ventral segment broadly depressed across the middle behind. Legs elongate ; anterior

tibie strongly fusco-ciliate in their apical half within ; anterior tarsi with projecting fuscous hairs,

Length 5%, breadth 25 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One male. ‘This species is almost entirely glabrous, above and beneath, the legs

are elongate, the prosternal cavity (¢) is very deep and large, and the spines are

long, the prothorax is nearly as long as broad, &c. The anterior coxe are separated

by about the width of one of them, The prosternal excavation jis deep enough to

receive the antennal club.

RHIANUS.

Lhianus, Pascoe, Ann. & Mag. Nat. Hist. (6) iv. pp. 822, 323 (1889).

Rostrum stout, arcuate; mandibles feebly notched on their inner edge ; eyes separated by the width of the

rostrum; antennal club large, acuminate-ovate; prothorax tubulate in front ; scutellum large and

RHIANUS,—RHIANINUS. 243

prominent, flat, widened posteriorly ; elytra triangular, much wider than the prothorax, incompletely

striate ; pygidium not visible; prosternum unarmed, sulcate, the sulcus extending backward between

the cox, which are separated by about one-half their own width; femora sublinear, unarmed ; tibie

angulate at their outer apical angle; tarsal claws free; body broad, convex, rhomboidal, polished,

glabrous above.

Type, 2. mexicanus, Pase.

This genus was based by Pascoe upon an insect he supposed to be the Centrinus

mexicanus of Boheman, but one of the characters given by him for Rhianus, “ femora

mutic,” shows that he had wrongly identified the species, and this has been confirmed

by a comparison of the types. The present insect has the general facies of a

Diorymerus, and there are no other Central-American forms known to me that can be

placed with it. The scutellum is unusually large and prominent.

1. Rhianus mexicanus, (Tab. XIII. figg. 31, 31a.)

Centrinus (Rhianus) mexicanus, Pasc. Ann. & Mag. Nat. Hist. (6) iv. p. 8323* (nec Boh.).

Shining, black, the antenne and the apical joint of the tarsi obscure ferruginous; glabrous above, the

punctures of the median portion of the under surface and of the legs each bearing a hair-like scale, the

lower surface of the femora and the inner edge of the tibie finely ciliate. Head transversely depressed

between the eyes; rostrum a little longer than the head and prothorax, stout, thickened at the base,

punctured to the tip, the antenne inserted far behind the middle, the club long, stout, and acuminate,

as long as joints 2-7 of the funiculus united. Prothorax moderately convex, the sides arcuately

converging from the base to the narrow tubulate anterior portion, the base subfoveate on each side of

the median lobe; the surface with very minute widely scattered punctures. Scutellum smooth, bare.

Elytra with the striz almost obsolete on the outer part of the disc from a little below the base, the three

inner ones sharply defined, becoming much deeper anteriorly, the interstices smooth. Beneath somewhat

closely punctate down the middle, the punctuation becoming much sparser towards the sides, the fifth

ventral segment slightly depressed aiong the centre.

Length 6, breadth 4 millim. (¢?)

Hab. Mexico (coll. Pascoe, in Mus. Brit.).

One specimen. Very like Centrinus mexicanus, Boh., here referred to Diastethus,

but with a longer scutellum, sublinear, unarmed femora, and free tarsal claws. The

locality requires confirmation.

RHIANINUS, gen. nov.

Rostrum strongly arcuate, stout ; mandibles straight on their inner edge, not decussate; antennal club ovate ;

eyes ascending, narrowly separated above; prothorax tubulate in front; scutellum transverse, free,

densely squamose ; elytra much wider than the prothorax, triangular, deeply striate, depressed along the

suture; pygidium not visible ; prosternum unarmed, narrowly sulcate; anterior coxe separated by about

one-third of their own width; femora linear, unarmed; tarsal claws free ; body rhomboidal, polished,

glabrous above, the scutellum excepted.

Type, BR. niverscutum.

The type of this genus is very like Rhianus mexicanus, Pasc., but cannot be

satisfactorily treated as congeneric with it; &. carinirostris is a diminutive allied

form.

2112

244 _ RHYNCHOPHORA.

1, Rhianinus niveiscutum, sp. n. (Rhianus niveiscutum, Tab. XIII. figg. 32,

32 a.)

Oblong-subrhomboidal, shining, black, the antennz and the tip of the rostrum ferruginous in one specimen ;

the scutellum densely albo-squamose, the rest of the upper surface bare, the entire under surface thickly

set with small, narrow, hair-like, white scales. Head closely punctate; eyes separated by about one-

half the width of the rostrum ; rostrum strongly arcuate, not longer than the head and prothorax, very

stout and gibbous at the base, flattened at the apex, the basal half tricarinate and closely punctate, the

apical portion flattened and very sparsely punctured; antenns with joints 2-7 of the funiculus short,

the club ovate, small. Prothorax gradually narrowing to the short, tubulate anterior lobe; very .

sparsely, finely punctate. Scutellum large, transversely subquadrate. Elytra triangular, long, slightly

depressed along the suture, the humeri swollen; sharply striate throughout, the strie feebly punctate,

the interstices flat and almost smooth. Beneath closely punctate. Prosternal sulcus narrow, continued

between the narrowly-separated anterior coxe.

Length 53-54, breadth 34-34 millim. (9?)

Hab. Guatemata, Senahu in Vera Paz (Champion).

Two specimens. Narrower than Rhianus mexicanus, the scutellum densely squamose,

the elytra sharply striate throughout, the under surface closely punctate and finely

squamose, the antennal club small, the eyes separated by about one-half the width of

the rostrum, the rostrum itself more flattened at the tip and tricarinate in its basal

half,

2. Rhianinus carinirostris, sp. n.

Subrhomboidal, rather narrow, shining, black ; the scutellum albo-squamose, the under surface and legs clothed

with small, narrow, white scales. Head closely punctate, feebly sulcate between the large, narrowly

separated eyes; rostrum stout, flattened at the apex, about as long as the head and prothorax, closely

punctate, a smooth space along the middle of the apical half excepted, sharply carinate on each side to

the tip. Prothorax transverse, subconical, strongly constricted in front; very sparsely, minutely

punctate. Scutellum small, transversely subquadrate. Elytra subtriangular, narrowing from the base,

strongly depressed along the whole length of the suture, the humeri not prominent ; sharply and deeply

striate, the strie faintly punctate, the interstices smooth and flat. Beneath closely punctate.

Length 3, breadth 12 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Very much smaller than the Guatemalan RB. niveiscutum, the eyes

subcontiguous, the rostrum carinate on each side to the tip, the elytra shorter, with

the suture more depressed and the humeri less prominent.

PSEUDORHIANUS, gen. nov.

Rostrum arcuate, stout; mandibles feebly notched on their inner edge, short, slightly decussate when closed :

antennal club ovate ; eyes separated above by the width of the rostrum ; prothorax tubulate in front :

scutellum small, transverse, free; elytra triangular, much wider than the prothorax, deeply stxignd

pygidium not visible; prosternum unarmed, broadly and shallowly sulcate, the sulcus limited on each

side anteriorly by a distinct ridge; ventral segments 1 and 2 connate at the middle; femora subclavate

unarmed, the anterior and intermediate pairs dilated at the outer apical angle; tarsal claws long free’

body rhomboidal, polished, almost glabrous above. , ’

Type, Ps. impressus.

PSEUDORHIANUS. 245

This genus is based upon a Mexican insect with a peculiar sexual distinction in ‘the

male. The Costa Rican 2. compressirostris has the rostrum strongly compressed and

abruptly separated from the head, and the anterior coxe much more approximate, but

it can be included here for the present. Centrinus conformis and C. ruficornis, Boh.,

and other S.-American forms may have to be included under Pseudorhianus.

1. Pseudorhianus impressus, sp. n. (Rhianus impressus, Tab. XIII. figg. 33,

33a, 3.)

Centrinus (Baris) impressus, Sturm, in coll. Sallé (nec Kirsch).

$. Oblong-rhomboidal, shining black, glabrous above, the punctures of the under surface each bearing a

whitish hair. Head closely, finely punctate; rostrum strongly arcuate, long, stout, flattened towards

the tip, thickly, rather coarsely punctate, subcarinate at the base, the antenne inserted far behind the

middle, joint 2 of the funiculus nearly as long as 1, the club ovate. Prothorax arcuately narrowing

from the base, strongly constricted in front; finely, somewhat closely punctate, a narrow smooth space

down the middle excepted. Scutellum small, transverse. Elytra rather long, subtriangular, with the

humeri swollen and somewhat projecting ; deeply striate throughout, the strie feebly punctate, the

interstices very sparsely, minutely punctate, almost flat, subcostate at the apex, the disc transversely

depressed below the base, near the middle, and at about one-third from the apex. Beneath sparsely,

finely punctate; prosternum with a broad, shallow, sharply margined sulcus, the smooth, flat intercoxal

portion furnished with a dense pencil of long erect ochreous hairs in the centre ; anterior coxe separated

by more than their own width. Femora subclavate, unarmed. Tibi all more or less hollowed and

ciliate in their apical half within. Tarsi rather slender.

Q. Rostrum longer, cylindrical, almost smooth, except at the base; prothorax subconical, more closely

punctate ; anterior coxe more approximate ; tibie slightly sinuate on their inner edge.

Length 5-6, breadth 23-3} millim. (¢ 2.)

Hab. Mexico (Sailé, ex coll. Sturm, and Trugqui in coll. Fry: 3), Panistlahuaca in

Oaxaca (Sallé: 2).

Two males and one female. The pencil of long hairs on the prosternum between

the anterior coxe is a remarkable male-character in this species.

9. Pseudorhianus compressirostris, sp.n. (Tab. XIV. figg. 1, 1a.)

Oblong-subrhomboidal, robust, shining, fusco-castaneous, the head, rostrum, prothorax, femora, and tibie

nigro-piceous ; the prothoracic punctures and those along the elytral interstices each bearing a semierect,

pallid seta, the under surface and legs sparsely clothed with long pallid bristly hairs. Head finely

punctate, with a deep transverse sulcus between the eyes; rostrum strongly arcuate, a little longer than

the head and prothorax, the basal half gibbous, compressed, and broadly sulcate on each side, the sides

angulate at the base beneath, sparsely, finely punctate, the antenns inserted at a little behind the middle,

joint 1 of the funiculus elongate, 2 much longer than 3, the club ovate. Prothorax broader than long,

subconical, strongly constricted in front; with coarse scattered punctures, a space along the middle

impunctate. Scutellum transverse, trapezoidal. Elytra much wider than the prothorax, narrowing

from the base, the disc transversely depressed at the base and beyond the middle ; punctato-sulcate, the

interstices convex and each with a widely-scattered series of coarse scattered setigerous punctures.

Beneath sparsely punctate. Prosternum broadly and shallowly sulcate anteriorly and with a smooth

transverse cavity in the apical constriction. Mesosternum depressed. Anterior coxe narrowly

separated.

Length 53, breadth 24 millim. (2?)

/ P DR CHO

246 RHYNCHOPHORA.

Hab. Costa Rica (Biolley, in coll. Solart).

One specimen, doubtless somewhat immature. An isolated form, with the rostrum

sharply separated from the head above and beneath, gibbous, and broadly excavate at

the sides; the prothorax with coarse scattered punctures; the anterlor coxe narrowly

separated; the upper surface very sparsely setose.

LAMPROBARIS, gen. nov.

Rostrum strongly arcuate from the base, cylindrical, at least one-half the length of the body, the antenne

inserted at (2) or beyond (3) the middle, the antennal club oblong-ovate and acuminate; mandibles

short, slightly notched on their inner edge, feebly decussate; prothorax conical, tubulate in front, the

upper anterior portion subcucullate ; scutellum small, free; elytra triangular, much wider than the

prothorax, flattened on the disc, abruptly suleate on the apical declivity; pygidium not visible;

prosternum bispinose and often excavate in the 6, flattened or shallowly excavate in the 9 ; ventral

segments 1 and 2 connate at the middle; anterior coxe separated by about half their own widths

femora feebly clavate, unarmed; tibie and tarsi rather slender, the lobes of the third tarsal joint narrow,

the tarsal claws long and divergent; body rhomboidal, polished, glabrous above and beneath.

Type, LZ. cucullatus.

Two closely allied forms are referred to this genus. Both have the elytra abruptly

sulcate at the apex (as in Lvssobaris nigropiceus); the legs long and rather slender,

smooth or sparsely punctate; and the short tubulate portion of the prothorax

somewhat produced over the head above.

1. Lamprobaris cucullatus, sp.n. (Tab. XIV. figg. 2, 2a, 3.)

Rhomboidal, ferruginous, shining. Head minutely punctate ; rostrum reaching nearly or quite to the apex

of the metasternum, finely punctate, smoother along the middle. Prothorax transverse, narrowed from

the base, smooth. Scutellum somewhat rounded, flat. Elytra rapidly narrowed from the base, conjointly

rounded at the apex, with smooth, somewhat swollen humeri; sharply striate, the strie obsoletely or

feebly punctate, the interstices smooth, flat on the disc and strongly convex on the apical declivity.

Prosternum and propleura smooth, the rest of the under surface sparsely punctate. Legs almost

smooth.

¢. Prosternum armed with two spines of variable length, and in fully-developed examples with a very deep

excavation between them ; first ventral segment slightly depressed down the middle,

Length 3-31, breadth 13-2 millim. (¢ 2.)

Hab. GuatTEemaALa, Sinanja and Purula in Vera Paz, Cerro Zunil (Champion: 3 2);

Panama, Bugaba (Champion: 2).

Kight specimens, the single specimen (¢ ) from Panama having the rostrum black

at the apex, and also longer and more closely punctate than in those of the same sex

from Guatemala.

2. Lamprobaris rufonotatus, sp. n. (Tab. XIV. figg. 3, 3a, .)

Rather elongate, rhomboidal, shining, black, the anterior lobe of the prothorax, a humeral spot and a large

apical patch on the elytra, the antenne, prosternum, prosternal spines, tibie, tarsi, and base of the

femora, rufous or ferruginous, the head and rostrum rufo-piceous. Head very minutely punctate ;

rostrum reaching the apex of the metasternum, punctured at the sides, smooth along the midile,

LAMPROBARIS.—PLATYBARIS. 247

Prothorax very little broader than long, the anterior lobe arcuately produced in the middle, smooth.

Elytra sharply striate, the strie feebly punctate, the interstices flat on the disc and sharply raised on

the apical declivity. Prosternum and propleura smooth, the rest of the under surface very sparsely

punctate. Legs sparsely punctate.

$. Prosternum armed with two long spines and with a very deep excavation between them; first ventral

segment slightly depressed down the middle.

Length 4, breadth 2 millim. (¢.)

Hab. GuatTemata, Sinanja in Vera Paz (Champion).

One male. Larger and more elongate than ZL. cucullatus, the elytra black, with a

shoulder-spot and a large apical patch rufous, the prothorax longer and more

produced over the head, the elytral interstices more sharply raised at the apex, the

legs sparsely punctured.

PLATYBARIS, gen. nov.

Rostrum stout, arcuate; mandibles straight on their inner edge, pointed, free; antennal club short-ovate ;

prothorax tubulate in front, deeply sinuate at the base; scutellum free, small, subcordate, flattened ;

elytra rounded-triangular; pygidium not visible; prosternum without definite groove, the intercoxal

portion tumid; anterior cox small, separated by about their own width; femora unarmed ; anterior

tibiee with a lamelliform prominence on the inner edge in the ¢; tarsal claws free; body broad,

rhomboid-elliptic, polished and glabrous above.

Type, P. lamellifer.

This genus is based upon a single species from Mexico. It is one of those Centrinid-

forms, like the N.-American Pachybaris, that has wholly the facies of the numerous

genera with completely exposed pygidium. ‘The armature of the anterior tibie of the

male is different from that of any Barid known to me, the triangular lamelliform tooth

being placed nearer the apex than in the few species possessing this character.

1. Platybaris lamellifer, sp.n. (Tab. XIV. figg. 4, 4a, , 3.)

Broad, flattened above, shining, black, the elytra and antenne piceous; the under surface and legs sparsely

clothed with small, cinereous, hair-like scales, the upper surface bare. Head finely punctate, transversely

grooved between the eyes; rostrum curved, stout, about as long as the head and prothorax, thickly

punctate, the antenne inserted near the middle, joint 1 of the funiculus as long as 2-5 united ; eyes

strongly transverse. Prothorax broader than long, arcuately narrowing from the deeply sinuate base,

strongly constricted and tubulate in front; sparsely, finely punctate, except along a narrow space down

the middle, the punctuation becoming closer and coarser towards the sides and on the flanks. Hlytra a

little wider than the prothorax, narrowing from the rounded humeri, the disc transversely depressed at

and below the base; with narrow, sharply-cut, finely punctured strie, the interstices flat, broad, and

very sparsely, minutely, subseriately punctate. Beneath closely punctate. Prosternum slightly depressed

anteriorly. Metasternum and first ventral segment shallowly sulcate down the middle. Legs short;

anterior tibic with an angular, corneous, rufo-testaceous, lamelliform prominence on the inner edge

towards the apex (fig. 4 6), the intermediate pair hollowed on the inner side at the tip.

Length 51, breadth 3 millim. (¢.)

Hab. Mexico, ? Sierra de Durango (Hoge, in coll. Solari).

One specimen. A broad, flattened form, glabrous above, with the elytral striz

narrow and the interstices very broad,

248 RHYNCHOPHORA.

DIORYMEROPSIS, gen. nov.

Rostrum arcuate; mandibles slightly notched on their inner edge, not or feebly decussate ; antennal club

ovate ; prothorax more or less tubulate in front; scutellum small, free; elytra much wider than the

prothorax, triangular or subtriangular, sharply striate; pygidium not visible; prosternum unarmed,

with a parallel-sided or anteriorly-widened sulcus extending backward between the coxe, the median

basal portion broadly produced and partly covering the mesosternum; femora unarmed, more or less

sulcate beneath ; anterior tibise excavate at the apex externally for the reception of the base of the

retractile tarsus; tarsal claws small, free or subconnate at the base; body rhomboid-ovate or rhomboidal,

polished, glabrous or clothed with scattered scales above.

Type, D. disjunctus.

Four species are included in this genus—two (D. disjunctus and D. piceicollis) with

the prosternal sulcus parallel-sided and two (D. cavimanus and D. uncatus) with the

sulcus narrowed posteriorly *. Diorymeropsis bears a certain relationship to Zygobaris

and its allies, all of which have connate tarsal claws.

1. Diorymeropsis disjunctus, sp. n. (Tab. XIV. figg. 5, 5a, 3.)

Rhomboid-ovate, shining, black ; the elytra and the lateral portions of the prothorax with widely-scattered,

elongate, narrow, white scales, which become a little more crowded at the base of the first and second

elytral interstices, the under surface and legs more thickly clothed with small narrow white scales; the

sides of the prothorax anteriorly, pro- and mesopleura, rostrum, and anterior femora in front, with

numerous intermixed coarser ochreous scales in the g. Head with minute scattered punctures,

transversely sulcate between the eyes ; rostrum (Q ) arcuate, stout, slightly thickened towards the base,

about as long as the head and prothorax, closely punctate, smooth along the middle, the scrobes extending

forward to near the tip, (¢) stouter, squamose, rugulosely punctate and finely carinate; antenns

inserted behind the middle of the rostrum in both sexes, the outer joints of the funiculus transverse, the

club ovate. Prothorax transverse, narrowing from the base, strongly constricted in front, the sides

rounded anteriorly ; very sparsely punctate, the punctures becoming coarser and more crowded laterally.

Scutellum oblong. FElytra wider than the prothorax, rounded-triangular, slightly depressed along the

suture; sharply striate, the strie feebly punctate, the interstices broad, flat, finely and irregularly

uniseriate-punctate. Beneath closely and coarsely, the ventral segments more sparsely, punctate.

Prosternal excavation narrow, parallel-sided, extending as far as the hind margin of the anterior coxe.

Legs short, closely punctate; femora sulcate beneath; anterior tibis hollowed at the apex externally,

finely ciliate within in the $; tarsal claws small, free.

Length 3-33, breadth 13-2,), millim. (¢ @.)

Hab. Panama, Bugaba (Champion).

Hight specimens, one only of which isa male. ‘The scattered, elongate, adpressed

white scales on the elytra are very conspicuous in this insect, and the sexual differences

in the vestiture of the rostrum and propleura are characteristic.

2. Diorymeropsis piceicollis, sp. n.

Subrhomboidal, shining, black, the prothorax piceous; the under surface and legs sparsely clothed with

minute, hair-like, white scales, the first elytral interstice with a short line of similar scales at the base.

Head minutely punctate, transversely grooved between the eyes; rostrum stout, arcuate, scarcely longer

than the prothorax, thickly punctate, the antenns inserted at the middle, Prothorax broader than long,

rapidly narrowed from the base, strongly constricted in front; sparsely, minutely punctate, the punctures

becoming coarse and crowded on the flanks. Scutellum very small, subquadrate. Elytra subtriangular,

* Pachybaris canthoxyli, Linell, from Texas, is nearly related to D. digjunctus and it will probably have to

be included in Diorymeropsis.

DIORYMEROPSIS. 249

rapidly narrowing from the base, the humeri somewhat swollen; sharply striate, the strie obsoletely

punctate, the interstices broad, flat, faintly uniseriate-punctate. Beneath coarsely and closely, the ventral

segments more sparsely, punctate. Prosternal excavation parallel-sided. Femora sulcate beneath.

Tarsal claws subconnate at the base.

Length 31, breadth 2 millim. (¢?)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Very near D. disjunctus, and with the prosternum similarly sulcate

and produced, but wanting the coarse scattered elongate scales on the elytra, the

prothorax less rounded at the sides, the rostrum much shorter and stouter, the tarsal

claws subconnate at the base.

3. Diorymeropsis cavimanus, sp. n.

Rhomboidal, rather narrow, shining, black; the prothorax at the sides, the elytra, under surface, and legs

sparsely clothed with hair-like white scales, the scales on the elytra rather long and setiform, uniseriately

arranged down each interstice and clustered into a short oblique streak at the base of the third. Head

finely punctate, transversely grooved between the eyes; rostrum very stout, a little longer than the

prothorax, strongly arcuate, thickly punctate, striate at the sides. Prothorax transverse, subconical,

strongly constricted in front; sparsely, coarsely punctate, smooth along the median line. Scutellum

oblong. Elytra much wider than the prothorax, subtriangular; sharply striate, the strie obsoletely

punctate, the interstices broad, flat, and very finely uniseriate-punctate. Beneath closely and coarsely,

the ventral segments much more finely, punctate, the first segment depressed down the middle in the ¢.

Prosternal sulcus deep and sharply defined, becoming narrower and shallower between the coxa.

Anterior femora shallowly, the others deeply, sulcate beneath. Anterior tibie with a long, the other

tibie with a shorter, apical uncus, the anterior pair hollowed at the apex and also shallowly sulcate

externally ; tarsal claws subconnate at the base.

Var. The hair-like white scales on the elytra wanting on the basal half, except at the base of the third interstice.

Length 23-23, breadth 14 millim. (d 9.)

Hab. Guatemata, San Gerdnimo (Champion: 3); Panama, Volcan de Chiriqui

3000 feet (Champion: 3 2).

Five specimens. Smaller and narrower than D. disjunctus, the rostrum shorter,

stouter, and more curved, the setiform scales on the elytra finer, the prosternal cavity

narrowed bebind and deeper in front, the anterior tibie hollowed for some distance

externally for the reception of the base of the tarsi in repose. The varietal form,

represented by a single male, is from Guatemala.

4, Diorymeropsis uncatus, sp. n.

Rhomboid-ovate, shining, black, the base of the antenne and the tarsi more or less ferruginous; almost

glabrous above, the under surface and legs sparsely clothed with minute, narrow, whitish scales. Head

minutely punctate, transversely grooved between the eyes; rostrum strongly arcuate, stout, about as

long as the head and prothorax, thickly punctate, striate at the sides. Prothorax transverse, convex,

rounded at the sides, narrowed and strongly constricted in front; coarsely, closely punctate. Scutellum

small. Elytra somewhat triangular, depressed along the suture at the base; punctate-striate, the

interstices flat, faintly uniseriate-punctate. Beneath coarsely and closely, the ventral segments 3 and 4

more sparsely, punctate, the first segment hollowed down the middle in the g. Prosternum with a

deep sulcus, which is narrowed between the coxe, the basal portion broad and covering the mesosternum.

Anterior tibiz in the ¢ strongly, and in the @ more feebly, unguiculate at the apex; tarsal claws

subconnate at the base.

Length 2-2, breadth 1,,-13 millim. (¢ 9.)

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, May 1908. 2 KK

250 RHYNCHOPHORA.

Hab. Guaremata, Zapote, San Gerdnimo (Champion); Nicaragua, Managua (coll.

Solari). |

Two males and three females. A minute, rhomboid-ovate, shining black, almost

glabrous form, with a coarsely punctured, convex prothorax, and subtriangular,

punctate-striate elytra, the anterior tibiz with a long apical hook in the male,

CHATOBARIS, gen. nov.

Rostrum arcuate, cylindrical, very stout ; mandibles short, toothed on their inner edge; antennal club ovate,

the funiculus slender ; prothorax tubulate in front, deeply bisinuate at the base; scutellum transversely

quadrate, flat, free; elytra subtriangular; pygidium not visible ; prosternum unarmed, with a broad,

smooth, shallow sulcus extending down its entire length, the sulcus limited on each before and between

the coxee by an acute ridge, the coxe separated by about their own width; mesosternum exposed ; legs

very short; femora feebly clavate, unarmed; tibize strongly unguiculate; tarsal claws divergent ; body

broad, short-ovate, polished, setose.

Type, Ch. nigrosetosus.

This genus is related to Rhianus. It is one of the few Central-American Barids

with conspicuously setose upper surface and legs. |

1. Chetobaris nigrosetosus, sp.n. (Tab. XIV. figg. 6, 6a, 2.)

Shining, black, the antenne ferruginous at the base; the upper surface clothed with scattered, long, erect,

fine, blackish sete, the under surface with cinereous hairs, the legs setose. Head transversely

depressed between the eyes, closely punctate above; rostrum about as long as the prothorax, sparsely

punctate, the antenne inserted behind the middle. Prothorax broad, transverse, much rounded at the

sides anteriorly, the short anterior lobe narrow, very sparsely punctate. Elytra about twice as long as,

and a little wider than, the prothorax, conjointly rounded at the apex, the humeri oblique and rather

prominent; sharply striate, the strie distinctly punctate, the interstices broad, flat, uniseriate-punctate.

Beneath and the legs sparsely punctate, the prosternum with the depressed median space smooth i

shining throughout ; first ventral segment excavate down the middle in the ¢.

Length 33-32, breadth 23-21 millim. (¢ 2.)

Hab. Panama, Caldera in Chiriqui 1200 feet (Champion).

Three specimens. In this insect the scattered punctures on the prothorax and

elytral interstices each bear a long, erect, fine, blackish seta.

ELLIPTOBARIS, gen. nov.

Rostrum arcuate, abruptly separated from the head above; mandibles slightly notched within, not decussate ;

antennal club ovate, the funiculus widening outwards; prothorax tubulate in front; scutellum small,

free ; elytra somewhat oval, the humeri oblique, not prominent, and forming an almost continuous

outline with the sides of the prothorax; pygidium not visible; prosternum unarmed, with a broad,

shallow, flattened sulcus, extending backward between the coxe, and limited on each side by an oblique

ridge ; legs short ; femora unarmed, sulcate at the apex only beneath; tarsal claws free; body elliptic or

rhomboid- elliptic, polished, clothed with a few scattered setiform scales,

Type, H. setulosus.

This genus includes two closely allied forms from Panama, both of which have

deeply sulcate elytra, with the humeri not at all prominent and almost in a line with

the sides of the prothorax. Elliptobaris approaches Chetobaris, but it has more the

facies of the N.-American Jdiostethus tubulatus.

ELLIPTOBARIS.—ACANTHOBARIS. 951

1. Elliptobaris setulosus, sp. n. (Tab. XIV. figs. 7, 74, 3.)

Elliptic, somewhat flattened above, shining, black, the tips of the tarsi ferruginous; the prothorax set with

long, fine, scattered, pallid, erect sete, the elytral interstices each with a scattered line of coarser,

semierect, yellowish-white sete; the under surface and legs very sparsely clothed with fine, hair-like,

white scales. Head with a deep transverse groove between the eyes; rostrum moderately stout, slightly

longer than the head and prothorax, punctate-striate, in the 2 a little longer and more sparsely punctate ;

antenne with joint 2 of the funiculus as long as 3 and 4 united, the club ovate. Prothorax transverse,

gradually narrowing from the base, strongly and abruptly constricted in front; closely (in the 2 more

sparsely) punctate, except along a narrow space down the middle, the punctures becoming coarser

towards the sides. Scutellum transverse, broadly truncate behind. Elytra considerably wider than the

prothorax, rather long, the humeri not prominent; deeply sulcate, the sulci feebly punctate, the

interstices somewhat convex, rather broad, each with a widely scattered series of coarse setigerous

punctures and a few irregularly-distributed minute punctures between them. Beneath very sparsely, in

the 3 more closely, punctate. Prosternal sulcus terminating in a transverse cavity in front, closely

punctured between the coxe in the ¢, polished and very sharply defined in the Q. Anterior coxe

separated by a little less than their own width. First ventral segment depressed down the middle

in the g.

Length 4-43, breadth 21-21 millim. (¢ @.)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

One male and two females,

2. Elliptobaris nudicollis, sp. n.

Rhomboid-elliptic, somewhat flattened above, shining, black, the tips of the tarsi ferruginous; the elytral

interstices each with a widely-scattered series of semierect pallid sete, the under surface and legs with

scattered, minute, hair-like, white scales. Head with a deep transverse groove between the eyes;

rostrum stout, strongly arcuate, not longer than the head and prothorax, sparsely punctate. Prothorax

transverse, narrowing from the base, strongly and abruptly constricted in front ; sparsely, very finely

punctate, the punctures becoming coarser at the sides, bare. Scutellum small, trapezoidal. Elytra

moderately long, with the sides at the base forming an almost continuous outline with those of the

prothorax ; deeply punctato-sulcate, the interstices towards the sides and apex convex and not wider

than the strie, flatter and broader on the disc, sparsely, minutely punctate and with a widely scattered

_ Series of coarser setigerous impressions. Beneath sparsely punctate. Prosternum as in Z, setulosus.

_ Anterior coxe separated by fully their own width.

Length 34-4, breadth 13-22 millim. (9 ?)

Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

_ Four specimens. A little less elongate than E. setulosus, the rostrum shorter, stouter,

and more curved, the prothorax finely punctate and bare, the elytra more rounded at

the sides and with fewer sete.

ACANTHOBARIS, gen. nov.

Rostrum (3) stout and areuate, ( 2 ) stout to about the basal third, with the apical portion longer, straighter,

_ and more slender than in the ¢ ; mandibles short, blunt at the tip, rounded externally, straight on their

inner edge when closed; antennal club short-ovate, the basal joint sparsely pilose ; prothorax tubulate in

front, deeply bisinuate at the base; scutellum small, transverse, free; elytra triangular ; pygidium

hidden ; prosternum unarmed, narrowly sulcate; anterior coxw separated by about one-third their own

. width; legs stout ; femora unarmed, the intermediate and posterior pairs feebly suleate beneath ; all the

- tibiee acutely dilated on their outer edge near the base and at the apex; tarsal claws very small, connate

at the base ; body convex, rhomboidal, polished, almost bare above. ‘

Type, A. castuneipennis.

2 KK 2

252 RHYNCHOPHORA.

This genus includes a single species from Panama. It has the tibie formed as

in Pseudoptatus (and in most of the Diorymeri), but is best placed amongst the

Centrinides, near Ahianus.

1. Acanthobaris castaneipennis, sp.n. (Tab. XIV. figg. 8, 8a, 3.)

Shining, black, the elytra castaneous or fusco-castaneous; the under surface and legs somewhat thickly

clothed with small, hair-like, cinereous scales, the median lobe of the prothorax with two dense clusters

of similar scales, the rest of the upper surface almost bare. Head sparsely punctate, transversely

depressed between the eyes ; rostrum about as long as the head and prothorax, a little shorter in the g,

rugosely punctate, the flattened apical portion in the 9 smoother, the antennew inserted towards the

base in both sexes, the joints of the funiculus becoming wider outwards. Prothorax transverse,

subconical, constricted in front; sparsely punctate, the punctures becoming coarser and closer at the

sides and along the basal margin. Scutellum concave. Elytra a little wider than the prothorax,

punctato-sulcate, the interstices subseriato-punctate, becoming narrow and convex towards the apex.

Beneath and the legs closely, rather coarsely punctate, the ventral segments 3 and 4 smoother,

Length 3, breadth 13-14 millim. (d @.)

Hab. Panama, Bugaba (Champion).

One male and two females.

DIORYMERELLUS, gen. nov.

Rostrum strongly arcuate, moderately stout; mandibles short, decussate at the tip; antennal elub ovate; pro-

thorax more or less tubulate in front; scutellum free, transverse or subquadrate; elytra much wider than

the prothorax, triangular or subtriangular, with one or more of the dorsal striz obliterated; pygidium not,

visible; prosternum unarmed, with a smooth deep excavation or sulcus, limited on each side by an oblique

ridge and extending backward between the anterior cox; femora not or feebly suleate beneath, unarmed ;

tarsal claws small, more or less connate at the base, free in D. histeroides; body rhomboidal, polished,

glabrous above.

Type, D. levipennis.

The seven species referred to this genus, all of which are unique, have the general

facies of the smaller Diorymeri, from which they differ in the less retractile legs, not or

imperfectly sulcate femora, less convex form, &c. The tibie are narrow and without

trace of angulation near the base externally. Dorymerellus includes various unnamed

S.-American forms standing under Diorymerus in collections, and at least one species

from the Antilles *. Centrinopsis, Reelofs, from Japan, is closely related to it. :

* Diorymerellus obliteratus, sp. n.—Short-ovate, shining, black, almost glabrous, above and beneath ; the

entire upper surface smooth, the under surface (the ventral segments 2-4 excepted) with coarse scattered

punctures. Elytra compressed at the sides opposite the posterior coxx, the marginal stria alone traceable.

Metathoracic episterna extremely narrow. Rostrum a little longer and more flattened at the tip in the

@ than inthe ¢. First ventral segment hollowed in the middle in the ¢. Tarsal claws minute,

connate.—Length 2-23, breadth 11-14 millim. (6 @.)

Hab. Antitiss, St. Vincent (H. H. Smith, in Mus. Brit.).

Six specimens. Smaller and narrower than D. levipennis ; elytra less rounded at the sides, black, and with

the sutural stria obliterated. There is a closely allied unnamed form from Vera Cruz, Mexico, in the U.S,

National Museum,

DIORYMERELLUS.

The Central-American species may be grouped thus :—

Elytra each with one (sutural) stria . woe ee we ww ws) Levipennis.

es % four dorsal striae . . eee ee we ew we) «OCtostriatus.

ro * five ,, Pe Se ee ew ee ee we «6 decemstriatus.

” 3 six % - . . « + 12-striatus, castaneicolor, rubripennis, histeroides.

1. Diorymerellus levipennis, sp. n. (Tab. XIV. figg. 9, 9a.)

Short-ovate, rather broad, shining, black, the elytra rufous; glabrous, Head sparsely, minutely punctate,

transversely grooved between the eyes; rostrum strongly arcuate, moderately stout, about as long as

the prothorax, very sparsely, minutely punctate, the antenne inserted at the middle, the antennal club

ovate. Prothorax transverse, strongly constricted in front, the sides arcuately converging from the base

and forming an almost continuous outline with those of the elytra, the surface with very minute

scattered punctures. Scutellum subquadrate. LElytra broad, slightly depressed along the suture, the

sutural and the two marginal strie only distinct, the others indicated by faintly impressed lines,

the interstices smooth and flat. Beneath sparsely, coarsely punctate, the propleura and intermediate

ventral segments almost smooth. Prosternum with a broad deep transverse excavation, which extends

backward to the base. Anterior coxe separated by their own width. Tarsal claws minnte, narrowly

separated.

Length 3, breadth 2 millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. The comparatively small prothorax, the almost smooth, rufous

elytra, with the sutural stria only distinct above, and the broadly and deeply excavate

prosternum, distinguish D. levipennis.

2. Diorymerellus octostriatus, sp. n.

Rhomboidal, narrow, convex, shining, the antennez ferruginous at the base; glabrous above, the under surface

and legs with scattered minute whitish scales, Head closely punctate, unimpressed between the eyes ;

_rostrum stout, strongly arcuate, about as long as the prothorax, closely punctate ; antennal club oblong-

ovate. Prothorax transverse, conical, constricted in front, with extremely minute scattered punctures

and a row of coarser punctures along the apical constriction. Scutellum subquadrate. Elytra much

wider than the prothorax, triangular; each elytron with four obsoletely punctured sharply-cut strie on

the disc and two marginal ones beneath, the fifth reduced to a short deep stria at the base, the others

obsolete or indicated by faintly-impressed fine lines, the interstices flat. Beneath closely, the ventral

segments 1-4 very sparsely and finely, punctate, the first segment sulcate down the middie, Prosternum

with a deep subtriangular excavation, Femora shallowly sulcate beneath, ‘Tarsal claws very small,

subconnate at the base. |

“Length 2, breadth 1, millim. (¢.)

Hab. Guatema.a, Coban in Vera Paz (Champion).

One specimen. A little more elongate than D. decemstriatus, the fifth elytral stria

reduced to a short line at the base, the rostrum more strongly arcuate. ‘The elytra

are narrower than in D. castaneicolor.

3. Diorymerellus decemstriatus, sp. n.

Rhomboidal, narrow, shining, black; glabrous, above and beneath. Head finely punctate, foveate between

the eyes; rostrum cylindrical, moderately curved, rather slender, reaching to near the apex of the

metasternum, very sparsely, minutely punctate, the punctures coarser at the sides, the antenne inserted

254. RHYNCHOPHORA.

at a little behind the middle, the antennal club oblong-ovate. Prothorax transverse, conical, strongly

constricted in front, smooth, slightly depressed at the base on each side of the median lobe. Scutellum

transverse. Elytra rather long, triangular, the humeri rounded ; each elytron with five faintly punctate,

sharply-cut stria on the disc and two incomplete marginal ones beneath, the sixth, seventh, and eighth

obliterated, the interstices broad, smooth, and flat. Meso- and metasternal side-pieces with coarse

scattered punctures, the abdomen almost smooth, except at the base and apex. Prosternum deeply

excavate, the sulcus limited posteriorly by a U-shaped groove between the anterior coxe. Legs

moderately long ; tarsal claws very small, subconnate at the base.

Length 32, breadth Lo, millim. ( 9.)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. ‘This species has five sharply-cut strie on the disc of each elytron

(one less than in D. histeroides), the elytra themselves are rapidly narrowed from the

base, the rostrum is elongate, and the prosternal excavation is sharply margined between

the coxe. |

4. Diorymerellus 12-striatus, sp. n.

Rhomboidal, narrow, shining, nigro-piceous, the elytra fusco-castaneous ; glabrous above, the under surface

and legs with minute scattered whitish scales. Head sparsely, minutely punctate, transversely grooved

between the eyes; rostrum arcuate, very little longer than the prothorax, stout, finely punctate, strigose

at the sides. Prothorax small, transverse, subconical, strongly constricted in front; sparsely, minutely

punctate, smooth along the median line, Scutellum subquadrate. Elytra much widen than the* pro-

thorax, triangular; each elytron with six narrow, feebly-punctured, sharply-cut strie and a marginal

one beneath, the others obliterated, the interstices broad and flat. Beneath sparsely, the ventral

segments 1-4 very finely, punctate. Prosternum deeply sulcate. Legs short; femora feebly sulcate

beneath ; tarsal claws minute, subconnate at the base.

Length 2, breadth 1 millim.

Hab. Panama, Volcan de Chiriqui ( Champion).

One specimen. Smaller and much narrower than D. levipennis, the elytra triangular

and each with six strie on the disc, the prosternal cavity becoming narrower behind

and not extending beyond the anterior cox. Narrower than D. castaneicolor, the

legs shorter, the prothorax less conical than in D. octostriatus.

5. Diorymerellus castaneicolor, sp. n. (Tab. XIV. fig. 10.)

Short-ovate, flattened above, shining, castaneous, glabrous. Head minutely punctate; rostrum strongly

arcuate, moderately stout, about as long as the head and prothorax, smooth (except at the sides), the

-antenne inserted at about the middle, the antennal club stout, ovate, rather longer than joints 2-7 of the

funiculus united. Prothorax transverse, strongly constricted in front, the sides arcuately converging

from the base, almost smooth. Scutellum very small, oblong-subquadrate. LElytra broad, much wider

than the prothorax, subtriangular, with the suture depressed at the base and the humeri swollen; each

elytron with six sharply-cut strics on the disc and two marginal ones beneath, the seventh and eighth

obliterated, the interstices broad, smooth, and flat. Meso- and metasternum closely, the ventral

segments more sparsely, punctate, the propleura in great part smooth. Prosternum with a deep

transverse excavation in front extending backward to the base, Anterior coxe separated by about their

own width. Tarsal claws very small, connate at the base.

Length 23, breadth 12 millim.

Hab. Mexico, Toxpam in Vera Cruz (Sallé).

DIORY MERELLUS. 258:

One specimen. Recognizable by the oblong scutellum, the six sharply-cut dorsal

strie of the elytra, the somewhat swollen humeri, and the castaneous colour.

6. Diorymerellus rubripennis, sp. n.

Subrhomboidal, shining, nigro-piceous, the antennz, anterior and intermediate tarsi, and hind legs obscure

ferruginous, the elytra and the ventral segments 3-5 rufous; glabrous above, the under surface and. legs

with minute scattered scales. Head transversely grooved between the eyes; rostrum arcuate, very

little longer than the prothorax, moderately stout, finely punctate, strigose and rugulose at the sides;

antennal club oblong-ovate. Prothorax transverse, subconical, slightly depressed at the base on each

side of the median lobe, constricted in front; smooth, the apical constriction with a transverse row of

punctures. Scutellum oblong-subquadrate. Elytra wider than the prothorax, gradually narrowing

from a little below the base, conjointly rounded at the apex; each elytron with six sharply-cut, obsoletely

punctured strie on the disc and two marginal ones beneath, the seventh and eighth obliterated, the

interstices broad, smooth, and flat. Beneath coarsely, the ventral segments 2-5 very sparsely and finely,

punctate. Prosternal excavation deep, subtriangular. Anterior coxe separated by about their own

width. Legs rather slender, very short, closely punctate ; intermediate and posterior femora shallowly

sulcate beneath ; tibize narrow, almost straight ; tarsal claws minute, narrowly separated.

Length 23, breadth 14 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

_ One specimen. Much smaller than D. histerotdes, the elytra and the apical half of

the abdomen rufous, the legs shorter and much more slender. The prothorax is less

‘constricted in front than in D. castaneicolor, and the head, prothorax, and legs are

nigro-piceous. ‘The hinder femora are shallowly sulcate beneath, much as in

Diorymerus.

7. Diorymerellus histeroides, sp.n. (Tab. XIV. fig. 11.)

Subovate, somewhat flattened above, shining, black, the apical two-thirds of the elytra rufous, the base of the

antenne ferruginous; glabrous, above and beneath. Head almost smooth, transversely grooved and

foveate between the eyes; rostrum moderately stout, arcuate, about as long as the prothorax, sparsely,

finely punctate, the antenne inserted at the middle, the antennal club ovate. Prothorax transverse,

with the sides arcuately converging from the base, strongly constricted in front, smooth. Scutellum

smooth and flat, transversely subquadrate. Elytra gradually narrowing from a little below the base, the

humeri rounded and not prominent; each elytron with six sharply-cut, finely-punctured stria on the

disc and two marginal ones beneath, the seventh and eighth obliterated, the interstices broad, smooth, and

flat. Beneath very sparsely and finely, the meso- and metasternal side-pieces coarsely and closely,

punctate. Prosternum deeply excavate, the sulcus limited posteriorly by a U-shaped ridge between the

cox. Legs short ; intermediate and posterior femora flattened beneath ; tarsal claws small, free,

Length 33, breadth 2,1, millim. (2 ?)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. This insect has the facies of a Histerid and the general coloration

of the European Baris analis. The six dorsal strize of the elytra are sharply cut, and

the seventh and eighth are obliterated. ‘The tarsal claws are less contiguous than in

the other species referred to Diorymeretlus.

256 RHYNCHOPHORA,

CERPHERES, gen. nov.

Rostrum arcuate, stout, not longer than the head and prothorax ; mandibles short, notched on the inner edge,

decussate; antennal club ovate; prothorax subconical, feebly constricted in front ; scutellum small, free,

subquadrate; elytra wider than the prothorax, deeply striate throughout, the humeri oblique and not

prominent; pygidium not visible; prosternum unarmed, deeply sulcate, the sulcus extending backward

between the anterior coxe and forward to the apex ; femora unarmed, linear or feebly clavate, narrowly

or obsoletely sulcate beneath; tarsal claws small, free; body more or less ovate, polished or finely

alutaceous, glabrous above.

Type, C. glabrescens.

Two very small forms are referred to this genus, one (C. glabrescens) with the

anterior cox narrowly separated and the femora linear, the other (C. rufescens) with

the anterior coxe more distant and the femora subclavate *. Cerpheres is nearly related

to Diorymerellus.

1. Cerpheres glabrescens, sp. n. (Tab. XIV. fig. 12, ¢.)

Subovate, narrow, shining black ; glabrous above, the scattered punctures on the legs and under surface each

bearing a minute whitish scale. Head sparsely punctate, transversely depressed between the eyes ;

rostrum curved, rather stout, a little longer than the prothorax, closely punctate, except along the median

line, the antenne inserted at about the middle, the antennal club short ovate. Prothorax transverse,

conical, feebly constricted in front; sparsely, rather coarsely punctate. Scutellum flat, subquadrate.

Elytra considerably wider than the prothorax, narrowed from the middle, conjointly rounded at the apex,

the humeri obtuse; sharply punctate-striate, the interstices broad, smooth, and flat. Beneath sparsely

punctate ; first ventral segment deeply excavate down the middle. Prosternum with a deep subtriangular

excavation extending backward between the anterior coxe, which are separated by about half their own

width. Legs short and comparatively smooth ; femora linear, narrowly and shallowly sulcate beneath ;

tibie almost straight.

Length 22, breadth 14 millim. (¢.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One male. A small, glossy-black, almost glabrous form, with a narrow, conical

prothorax and feebly sulcate femora, the prosternal sulcus extending narrowly back-

ward between the anterior cox. Narrower and more shining than C. rufescens, wholly

black, the prothorax rapidly narrowed from the base, the elytral interstices smoother,

the anterior coxe much less widely separated.

2. Cerpheres rufescens, sp. n. (Tab. XIV. fizg. 13, 13a, 3 .)

Ovate, rather narrow, moderately shining, piceous or obscure castaneous, the elytra and legs ferruginous;

glabrous above, subglabrous beneath. Head sparsely punctate, transversely grooved and obsoletely

foveate between the eyes; rostrum arcuate, moderately stout, about as long as the prothorax, a little

longer and smoother in the 9, the antenna inserted at the middle, joint 1 of the funiculus as long as 2-4

united, the club ovate. Prothorax transverse, gradually narrowing from the base, constricted in front ;

closely, somewhat coarsely punctate, except along a narrow median space. Scutellum oblong-subquadrate.

Elytra narrowing from a little below the base, the humeri oblique and forming an almost continuous

outline with the sides of the prothorax; deeply punctate-striate, the interstices flat, 2 and 3 or 2-4 with

an irregular double, and the others wlth a single, row of very fine punctures. Beneath

closely and

rather coarsely,

a broad space down the middle of the abdomen more sparsely and finely, punctate ; first

* Baridius thoracicus, Kirsch, from Peru, approaches these forms ; but it has the prothorax obtusely margined

at the sides anteriorly, and will doubtless have to form the type of a new genus,

CERPHERES.—CYLINDROCERINUS. 257

ventral segment slightly depressed down the middle in the ¢. Prosternum with a deep, road, shining

sulcus, which becomes narrower between the coxa, the latter separated by fully their own width. Femora

feebly clavate, obsoletely grooved beneath. Tibi dilated at the outer apical angle.

Length 5-31, breadth 13-12 millim. (¢ 9.)

Hab. Mexico, Chilpancingo in Guerrero 4600 feet (H. H. Smith).

One pair. In this insect the surface is very finely alutaceous above and beneath,

the elytra are rufescent, and the prosternal sulcus is broad and deep. C. rufescens is

not unlike the N.-American Jdiostethus tubulatus (Lec.), from which it differs in the

structure of the prosternum, the less prominent humeri, the minute tarsal claws, &c.

CYLINDROCERINUS, gen. nov.

Rostrum arcuate, not longer than the head and prothorax; mandibles short, decussate; antennal club ovate ;

prothorax completely and abruptly tubulate in front; scutellum small, subquadrate, free; elytra much

wider than the prothorax, subtriangular; pygidium covered by the elytra; prosternum with an oblong

compressed cariniform prominence’ in front of each anterior coxa in the ¢, the coxe exserted and

separated by about their own width; femora clavate, unarmed; tibie acutely dilated at the outer apical

angle ; tarsal claws divergent ; body oblong-rhomboidal, polished, almost glabrous above.

Type, C. tubsfer.

This genus is based on a single species from Mexico which cannot be satisfactorily

placed elsewhere. The prosternal prominences of the male are here reduced to two

short oblong ridges (more conspicuous than in the same sex of Centrinus puncticollis,

Boh.) ; the neck-like construction of the prothorax is very abrupt; and the mandibles

are short and decussate. ‘The upper surface is glabrous, except for a patch of white

scales at the base of the third interstice, such as is to be found in various species of

Cylindrocerus, and in Gereus (Centrinus) distigma, Kirsch, and G. pilosus. The

unique male is somewhat injured, and it is possible that the tip of the pygidium may

be exposed in this sex.

1. Cylindrocerinus tubifer, sp. n. (Tab. XIV. figg. 14, 144, 2.)

Ovate, shining black, the tip of the rostrum ferruginous; an oblong spot at the base of the third elytral inter-

stice, the prosternum, and the metathoraciec episterna, somewhat thickly clothed with small narrow white

scales, the rest of the under surface and the legs sparsely set with minute, hair-like, white scales. Head

sparsely, minutely punctate, transversely depressed between the eyes; rostrum arcuate, about as long as

the head and prothorax, rather slender, thickened towards the base in the Q, finely punctate, with the

apical portion smoother, the antenne in the ¢ inserted at a little beyond, and in the ¢ slightly behind,

the middie, the antennal club ovate, the outer joints of the funiculus strongly transverse. Prothorax

broader than long, rounded at the sides anteriorly, the anterior lobe narrow; sparsely, very finely punc-

tate, except along the median line, and with a line of closely-placed coarser impressions along the basal

margin and across the subapical constriction. Elytra deeply striate, the strie feebly punctate, the

interstices almost flat, convex at the apex, with excessively minute scattered punctures, the third closely

punctate at the base. Beneath closely, the median portion of the abdomen more sparsely, punctate.

¢é. Prosternum tumid and with a compressed oblong prominence in front of each coxa, the intervening space

shallowly excavate ; first ventral segment broadly excavate down the middle.

Length 4-41, breadth 1,9,-2;4, millim. (¢ 9.)

Hab. Mexico, Cuernavaca (Hége: ¢ ), Xucumanatlan (H. H. Sinith: @ ).

Two specimens.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1908. 2 LL

258 RHYNCHOPHORA.

MICRORHIANUS, gen. nov.

Rostrum arcuate; mandibles short, curved, more or less decussate at the tip when closed; head large,

globose ; eyes narrowly separated above; prothorax conical, tubulate in front ; scutellum very small,

free; elytra much wider than the prothorax, subtriangular ; pygidium not visible; prosternum unarmed,

suleate, the sulcus extending backward between the coxee, and limited on each side anteriorly by a slender

ridge; anterior coxe exserted, narrowly separated in M. hamatus, more distant in JZ. palliditarsis ; femora

unarmed ; tarsal claws small, connate at the base; body rhomboidal, narrow, polished, glabrous above.

Type, M. hamatus.

Microrhianus is based upon two minute forms from Panama, one with a shallow, and

the other with a deeper prosternal sulcus. ‘They are narrow and somewhat cuneiform

in shape, and have the upper surface glabrous, the legs slender, the elytra deeply

striate, &c.

1. Microrhianus hamatus, sp. n. (Tab. XIV. figg. 15, 15a, 6, ¢.)

Rhomboid-elliptic, narrow, shining black, the antenne, tip of the rostrum, and tibial claws ferruginous ;

glabrous above, the short ante-coxal portion of the prosternum densely squamose, the rest of the under

surface and the legs with small scattered white scales. Head closely, finely punctate, the eyes narrowly

separated; rostrum strongly arcuate, stout, a little longer than the prothorax, rather coarsely punctate

at the sides, smoother along the middle, the antenne inserted at the apical third, the antennal club stout

and ovate. Prothorax slightly broader than long, subconical, strongly constricted in front; with a row

of rather coarse punctures along the basal margin and another along the subapical sulcus, the rest of the

posterior portion smooth. Scutellum oblong, sulcate. Elytra arcuately narrowing from a little below

the base, flattened on the disc, the humeri somewhat swollen; deeply striate, the striae feebly punctate,

the interstices smooth and flat. Beneath closely, the lateral portions sparsely, punctate, the ventral

segments 2-4 almost smooth. Prosternum shallowly sulcate. Anterior coxe narrowly separated. Legs

slender, rather long; anterior tibia armed with a long stout claw, which is fully as long as the first

tarsal joint and notched at the tip, the other tibie also sharply unguiculate.

Length 21, breadth 1§ millim. (<¢.)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen. The anterior tibial claw is remarkably developed in this insect, and

the short anterior portion of the prosternum is so densely squamose that the prosternal

sulcus is almost hidden. ‘he mandibles are curved, slender and decussate at the tip.

9. Microrhianus palliditarsis, sp. n.

Subrhomboidal, narrow, shining black, the antenne, tip of the rostrum, and tarsi ferruginous ; glabrous above,

the under surface and legs sparsely clothed with minute white scales. Head closely finely punctate,

faintly foveate between the narrowly separated eyes ; rostrum strongly arcuate, rather stout, a little longer

than the prothorax, sparsely punctate, the antenne inserted at the middle, the antennal club stout and

ovate. Prothorax transverse, conical, strongly constricted in front, almost smooth. Scutellum transverse,

sulcate. Elytra oblong-subtriangular, depressed along the suture at the base, the humeri somewhat

swollen; deeply striate, the strie feebly punctate, the interstices smooth and almost flat. Beneath

sparsely punctate, the ventral segments 2-4 with a few scattered punctures only, 1 excavate down the

middle in the ¢. Prosternum with a deep sulcus, limited on each side by a longitudinal ridge. Anterior

cox separated by a little less than their own width. Legs rather long and slender; all the tibie with

a slender claw in both sexes.

Length 2-21, breadth 145 millim. (¢ @.)

Hab. Panama, Volcan de Chiriqui 2500 feet (Champion).

MICRORHIANUS.—EUGEREUS. 259

One pair. Very like I. hamatus, but with the prothorax almost impunctate, the

elytra more parallel-sided and depressed along the suture anteriorly, the prosternum

deeply sulcate and almost bare, the anterior cox more widely separated, the tarsi

ferruginous, and the anterior tibial claw small in both sexes.

EUGERAUS, gen. nov.

Mandibles rather long, curved, strongly decussate; rostrum cylindrical, arcuate, about as long as the elytra;

prothorax subconical, deeply sinuate at the base; scutellum free, subquadrate; elytra subtriangular ;

pygidium not visible; femora clavate, the anterior and intermediate pairs each with a long, and the

posterior pair with a shorter, tooth; anterior coxe widely separated; prosternum armed with two

spines, and also excavate down the middle anteriorly in the g; tarsal claws free; body elongate-

rhomboidal, clothed with a fine vestiture above and beneath.

Type, ZL. unifasciatus.

_Hugereus includes two closely allied forms from Mexico and Panama respectively.

Both have the general facies of a small Cholus. The mandibles are somewhat sickle-

shaped. Males only are known.

1. Kugerzus unifasciatus, sp. n. (Tab. XIV. figg. 16, 16a, 3.)

Nigro-piceous, the legs in part ferruginous in one specimen ; above and beneath very sparsely clothed with fine,

hair-like, ochraceous scales, the elytra with a dense, narrow, transverse fascia of coarser ochreous scales

beyond the middle. Head closely punctate ; rostrum rather stout, coarsely striate-punctate, the antenne

inserted at the middle. Prothorax broader than long, subconical, the sides somewhat rounded posteriorly ;

densely, confluently punctate, the narrow interspaces raised into curved oblique ridges. Elytra much

wider at the base than the prothorax; finely punctate-striate, the interstices flat and transversely rugose.

Beneath closely, coarsely punctate, the transverse prothoracic sulcus strongly foveolate behind the eyes.

Prosternum armed with two short spines, and also broadly excavate anteriorly. First ventral segment

slightly hollowed down the middle. Anterior tarsi somewhat dilated, joint 2 strongly transverse.

Length 6-71, breadth 2,%-3 millim. (¢.)

Hab. Mexico, Jalapa (Hége), Chiapas (Sad/é).

Two specimens, varying a little in the width of the narrow elytral fascia. The elytra

themselves are relatively broader at the base than in £. discifer, and the markings are

very different.

2. Eugereus discifer, sp. n. (Tab. XIV. figg. 17, 17a, ¢.)

Piceous, variegated beneath with black, the antenne and legs (the knees excepted) more or less ferruginous ;

above somewhat thickly, the under surface and legs sparsely, clothed with fine, narrow, ochreous scales,

those on the prothorax longitudinally arranged, the elytra with a common, heart-shaped patch before

the middle and the apex black. Head closely punctate; rostrum rather stout, thickened towards the

base, striate-punctate, the antenne inserted at about the middle, the antennal club acuminate-ovate.

Prothorax broader than long, subconical, constricted in front, the sides somewhat rounded posteriorly ;

densely confluently punctate, the narrow interspaces raised into curved oblique ridges. Elytra finely

punctate-striate, the interstices flat and transversely rugose. Beneath closely punctate, the transverse

prothoracic sulcus strongly foveolate behind the eyes. Prosternum armed with two porrect spines, and

also deeply excavate anteriorly. First ventral segment slightly hollowed down the middle.

Length 51-6, breadth 23 millim. (¢.)

~ Hab. Panama, Bugaba, Volcan de Chiriqui (Champion).

2LL 2

260 RHYNCHOPHORA.

Two males, varying in the length of the prosternal spines. The two black patches

on the elytra are sharply defined—one, heart-shaped, crossing the suture before the

middle, and the other at the apex.

PRIONOBARIS, gen. nov.

Rostrum arcuate, abruptly separated from the head above; head small; mandibles short, notched within,

decussate ; prothorax convex, tubulate in front; scutellum free; elytra much wider than the prothorax,

triangular; pygidium not visible; prosternum with a deep semicircular impression in the middle ;

anterior coxe separated by about half their own width ; femora feebly clavate ; tibis serrate on their

inner edge, strongly unguiculate at the apex, the intermediate and posterior pairs dilated at the outer

apical angle; tarsal claws connate at the base; body rhomboid-ovate, roughly sculptured, clothed with

a sparse setiform vestiture.

Type, P. asper.

This genus, based upon a single species from Mexico (the unique type of which is

apparently a male), may be readily identified by the serrate tibiee (a character to be

found in several Diorymeri), combined with the basally connate tarsal claws and the

short decussate mandibles.

1. Prionobaris asper, sp.n. (Tab. XIV. figg. 18, 18a, 3.)

Opaque, nigro-piceous, the antennw® and tarsi obscure ferruginous; very sparsely clothed with decumbent,

setiform, intermixed whitish and brown scales, the punctures on the under surface and legs each with

a fine whitish hair-like scale. Head minutely punctate, deeply, transversely grooved between the eyes ;

rostrum a little longer than the head and prothorax, arcuate, rather stout, rugosely punctate, smoother

and shining at the tip, the antenna inserted behind the middle, the club ovate. Prothorax broader than

long, strongly rounded at the sides, the tubulate anterior portion narrow; coarsely, rugosely punctate,

and finely carinate. Elytra compressed at the sides below the humeri and depressed on the disc before

and beyond the middle; deeply punctate-striate, the interstices not wider than the striz, coarsely

uniseriate-punctate, the dorsal ones subcostate on each side and the others granulate. Beneath coarsely,

closely punctate ; first ventral segment excavate down the middle posteriorly. Legs rugosely punctate,

Length 41,, breadth 21 millim. (4?)

Hab. Mexico, Juquila in Oaxaca (Sal/é).

One specimen, rather worn.

GERAUS.

- Gereus, Pascoe, Ann. & Mag. Nat. Hist. (6) iv. pp. 322, 823 (1889).

Centrinus, subgenera i-ix, Casey, Ann. N. York Acad. Sci. vi. pp. 467, 572 (1892).

Following Casey’s system of classification, based mainly upon the form of the

mandibles, the name Centrinus cannot be used for the numerous North-American

species he placed in that genus. The type of Centrinus, Schénherr, as stated by

Pascoe, is Baris bicuspis, Germ., an insect that is certainly congeneric with the type of

Linonotus, Casey (Centrinus distinctus, Boh.*), both having the mandibles strongly

* Recorded by Casey from “Texas,” but doubtless there has been some mistake about this locality, no

Centrinid of the kind being known from within our limits.

GERAUS. 261

denticulate on their inner edge. Centrinus, therefore, will have to be restricted to the

few South-American forms (all of large size *) possessing this structure, and the name

Gereus, Pasc. (type Centrinus senilis, Boh.), applied to the very large number of

species having the mandibles straight on their inner edge and more or less pointed at

the tip f. Odontocorynus is here retained as distinct, as well as Nicentrus, Centrinites,

and Centrinopus, though these latter are scarcely separable from Gereus. About 100

species from within our limits are referred to Gerwus, the head-quarters of the genus

being apparently in Mexico. ‘The male-characters are here of the utmost importance

in discriminating many closely allied forms, and some of them have scarcely been

noticed hitherto, such as the greater development of the anterior tibial claw in certain

cases, the ciliation of the anterior or posterior tibie, or of the under surface of

the femora, the dilated anterior tarsi, the toothed or notched anterior tibiz, the

dilated posterior tibie, &c. The prosternal spines vary in development (as in

Diastethus), and they may be sometimes reduced in the same species to conical

tubercles. In a few forms the antennal club is elongated in the male, and in one

(G. serratispinis) the rostrum is sagittiform in this sex.

The various species may be grouped thus f :—

a. Rostrum long, slender, strongly arcuate, and of equal thickness throughout ;

femora sulcate beneath. [Sf unknown.]. . ..... . . . . « Species 1.

b. Rostrum (except in G. puncticollis) usually more or less thickened towards

the base; femora (except at the apex) not sulcate beneath.

a’. Upper surface finely pilose and with patches of white scales at the base of

the elytra. [gd unknown.] . . 2... 6 ee we ee es Species 2.

6’. Upper surface not finely pilose, with or without scales or decumbent setz.

a’. Prosternum (¢) bispinose or bituberculate immediately in front of the

anterior cox.

a’. Prosternal spines (¢) very long and serrate; rostrum sagittiform . Species 3.

b°. Prosternal spines ( ¢) very long, abruptly dilated at the base . . . Species 4.

c®. Prosternal spines (¢) not or gradually thickened towards the base,

sometimes reduced to two tubercles.

a’. Anterior tibie (¢) armed with a triangular tooth on the inner

edge. 2 6 6 ew we ee we ww we we ee ew + Species 5,

b*. Anterior tibiz (¢) without tooth on the inner edge.

a’. Posterior tibize (¢) dilated externally . . . . . . . ~ ~~ Species 6.

b°. Posterior tibie (¢) not dilated externally. . . . . . « ~ Species 7-53.

* (O, bicuspis and olfersi, Germ., and C. distinctus, germart, curvirostris, parallelus, westwoodi, Boh.

+ O, strobeli, Steinh., from “Salvador” must be an Argentine insect.

+ Amongst those of which the 9 only is known, G. biplagiatus, teniatus, flagellifer, octomaculutus, triplaris,

coarctatus, duplaris, x-notatum, bifurcatus, omilteme, varius, varipes, and leucomelas may prove to be wrongly

placed when the ¢ is found.

RHYNCHOPHORA.

6°. Prosternum () with two flattened bifurcate processes in front of the

anterior cox = 2. 0. > oe © te eee he ew we) Species 54

c’, Prosternum (g) with two completely connate spines . . . +. + + Species 55, 56,

dad’, Prosternum (¢ ?) bituberculate anteriorly . . . . + + + © © Species 57.

e*. Prosternum (¢) slightly tumid in front of each coxa; prothorax

abruptly tubulate in front; elytra uneven; rostrum not widened

towards the base ; upper surface almost bare. . . . + + «© » «+ Species 58.

f°. Prosternum (¢ 2) unarmed.

d’, Antennal club elongate in g,ovatein ?. . . . . . + «+ « + Species 59-62.

e’. Antennal club acuminate-ovate in ¢, smaller and ovate in 2;

anterior tarsidilated in @ . . .. . . . «© « « «© « « © Species 63, 64.

f°’. Antennal club ablong-ovate or ovate in both sexes; anterior tarsi

not dilated in ¢.

c’. Upper surface more or less metallic; species small . . . . ~. Species 65-68,

d*. Upper surface not metallic.

ce’. Elytra and prothorax with scattered or close vestiture.

a’. Mandibles moderately long or short.

a’. Subapical callosities of the elytra prominent . . . . . Species 69.

6". Subapical callosities of the elytra not prominent . . . . Species 70-100.

6°. Mandibles more elongate ; eyes narrowly separated. . . . Species 101.

ad’. Eiytra glabrous ; the prothorax squamose. . . . . . . . Species 102,

1. Gereeus arcuatirostris, sp.n. (Tab. XIV. fige. 19, 19a, 2.)

Broad ovate, rather convex, feebly shining, piceous, the antenne and the tips of the tarsi ferruginous ;

clothed with rather long, coarse, adpressed, setiform, ochreous scales, the vestiture of the prothorax

transversely arranged and that of the elytra placed in close lines, the elytra also with a few intermixed

whitish sete ; the under surface and legs with hair-like, yellowish-white scales. Head closely punctate ;

rostrum slender, cylindrical, reaching to the apex of the metasternum, abruptly and strongly arcuate

from the base, somewhat coarsely striate-punctate, smooth along the middle, the antenne inserted at the

basal fourth, the antennal club large, acuminate-ovate. Prothorax transverse, rounded at the sides,

constricted and much narrowed in front; densely, rugosely, confluently punctate, and also carinate.

Scutellum small, transverse. Elytra broader than the prothorax subcordate; deeply punctate-striate,

the interstices asperato-punctate and (1 and 2 excepted) narrowly costate. Beneath densely punctate.

Prosternum narrowly sulcate. Anterior cox separated by much less than their own width. Femora

sulcate beneath.

Length 34-4, breadth 23-21 millim. (@.)

Hab. Mexico (Mus. Brit.), Cordova (Sallé).

Two females. In this insect the rostrum is strongly and abruptly curved from the

base, the prothorax is longitudinally rugose and carinate, and the elytral interstices

are densely asperato-punctate and feebly costate. The prosternum is probably spined

in the male.

2. Gereeus pilosus, sp. n. (Tab. XIV. figg. 20, 20a, 2.)

Oblong-subrhomboidal, shining, black, the rostrum (except at the base) and antenne obscure ferruginous ; the

prothorax and elytra somewhat thickly clothed with very fine, short, dark, erect hairs, the elytra with a

GERAUS. 263

dense oblong patch of coarse white scales at the base of the third interstice; the under surface (a broad

space down the middle of the abdomen excepted) also clothed with white scales, these becoming coarser

and closer along the sides, and there condensed into an interrupted stripe which is continued across the

prosternum. Head closely punctate, transversely depressed between the eyes; rostrum long, strongly

arcuate, slender and almost smooth, the short basal portion abruptly thickened and rugosely punctate,

the antennee inserted close to the base, joint 2 of the funiculus nearly as long as 1, the others shorter,

gradually decreasing in length, the club oblong-ovate, acuminate, and with distinct transverse sutures.

Prothorax transverse, rather convex, rounded at the sides, narrowed and strongly constricted in front,

closely punctate. Scutellum small, transversely subquadrate. Elytra triangular, narrowly and sharply

striate, the strie faintly punctate, the interstices flat and minutely punctate. Beneath closely, the broad

almost bare space down the middle of the abdomen sparsely, punctate. Legs rather long and slender, the

femora abruptly clavate.

Length 41, breadth 2, millim. ( 9.)

Hab. Mexico, San Andres Tuxtla in Vera Cruz (Sal/é).

One female. The dense streak of pure white scales at the base of the third elytral

interstice gives this insect the general appearance of various species of Cylindrocerus

and Madarus. The antenne (2) are inserted close to the base of the rostrum and

have a rather long club, the prothorax and elytra are fusco-pilose, and the femora are

abruptly clavate. The prosternum will probably prove to be bispinose in the male.

3. Gerzeus serratispinis, sp.n. (Tab. XIV. figg. 21, 21a, , 3.)

3. Subrhomboidal, somewhat flattened above, shining, black; the prothorax above and beneath sparsely

clothed with long, ochreous, hair-like, transversely-arranged scales, the elytra with irregular rows of

intermixed ochreous and black, adpressed, setiform scales, the rest of the surface with narrow, hair-like,

ochreous or yellowish scales. Head sparsely punctate, transversely depressed between the eyes, the

latter very large ; rostrum arcuate, slender, reaching to beyond the apex of the metasternum, abruptly

dilated and sulcate on each side from about the basal third and gradually narrowing thence towards the

tip, striate-punctate, smooth down the centre, the antenne slender and inserted far behind the middle, the

antennal club oblong-ovate. Prothorax broad, transverse, rounded at the sides anteriorly, much narrowed

and constricted in front, deeply sinuate at the base; somewhat closely punctate, the punctures on the

disc transverse. Scutellum transverse. LElytra subtriangular, about the same width at the base as the

elytra; narrowly punctate-striate, the interstices flat; and asperato-punctate. Beneath closely punctate.

Prosternum armed with two very long, porrect, dorsally serrated spines, the space between them smooth

and deeply sulcate to the transverse subapical fovea, on either side of which is another deep fovea.

Anterior coxe separated by about their own width. Legs long; anterior tibie pilose within; tarsi rather

broad, the bilobed third joint large, the anterior pair clothed with long fine projecting hairs,

©. Rostrum very slender, flattened from near the base and almost smooth.

Length 51-4, breadth 24-3 millim.

Hab. Costa Rica (U.S. Nat. Mus.: 2); Panama, Volcan de Chiriqui (Champion: ¢ ).

Two specimens. A remarkable form and the only Central-American species with

serrated prosternal spines aud a sagittiform rostrum in the male.

4. Gerzus sinuatispinis, sp.n. (Tab. XIV. figg. 22, 22a, ¢.)

Oblong, subrhomboidal, nigro-piceous, the antennz and prosternal spines obscure ferruginous ; thickly clothed

with rather long, coarse, narrow, ochreous scales, which are transversely arranged on the prothorax, the

elytra with an almost bare transverse black patch at the sides about midway between the base and apex.

Head finely punctate, transversely grooved between the eyes; rostrum very long, strongly arcuate,

irregularly striate-punctate, the basal portion carinate at the sides and slightly thickened, the antennze

264 RHYNCHOPHORA.

inserted at about the basal third. Prothorax broad, transverse, much narrowed and constricted in front,

the sides rounded anteriorly and parallel behind ; closely, finely punctate. Elytra subtriangular, finely

punctate-striate, the interstices flat and asperato-punctate. Beneath densely punctate. Prosternum

armed with two moderately long, strongly sinuate spines—which. are curved upward at the tip and

dilated and concave at the base within,—and with a deep transverse subapical fovea, and a smaller fovea

on each side of it, the space behind the central oue smooth and tumid. Anterior tibie set with long

hairs along their inner edge, the anterior tarsi also with long projecting hairs.

Length 54, breadth 22 millim. (¢.)

Hab. Guatemata, Tamahu in Vera Paz (Champion).

One male. Larger and more elongate than G. rectispinis, the prothorax with the

sides parallel behind and more rounded anteriorly, the elytra with a single transverse

dark patch at the sides and indications of a faint spot near the apex, the prosternal

spines of the male narrowly separated at the base and peculiarly-shaped, the anterior

tibie and tarsi hairy in this sex. G. sinuatispinis has somewhat the facies of G. perus.

5. Gereeus bipustulatus, sp. n. (Tab. XIV. figg. 23, 234, b, 6.)

Ovate, black, the antenne and the tips of the tarsi obscure ferruginous; densely clothed above and beneath

with whitish or brownish-white scales, those on the prothorax radiating from the median line, the elytra

each with a sharply-defined, transverse, sinuous, black patch at the middle of the disc extending inward

to the third stria; the prothorax, elytra, and under surface densely, finely punctate. Head finely

punctate, foveate between the eyes; rostrum rather stout, strongly arcuate, a little shorter than the

elytra, closely striate-punctate in the ¢, the apical half much smoother in the 9, the antenne inserted

at about the middle. Prothorax transverse, rounded at the sides anteriorly, much narrowed in front.

Elytra finely striate. Legs short.

3. Prosternum shallowly sulcate, and armed with two short conical spines; anterior tibie with a short

triangular tooth on the inner edge at about the middle.

Length 33-4,1,, breadth 2-2} millim. (¢ 9.)

Hab. Mexico (coll. Solari), Jalapa (Hége), Teapa (H. H. Smith); Nicaraeva,

Chontales (Janson).

We have received seven specimens of this well-marked species. The vestiture,

which is usually white or paler beneath, is so dense as to hide the sculpture, and the

elytra have each a transverse, sinuous, sharply-defined black patch on the outer part of

the disc at about the middle. The male has short prosternal spines and toothed

anterior tibie.

6. Gereus podagrosus, sp.n. (Tab. XIV. figg. 24, 24a, 4, 3.)

Subrhomboidal, black, the antenne sometimes in part ferruginous, the elytra shining ; thickly clothed above

and beneath with rather coarse, narrow, flavo-cinereous or cinereous scales, which on the prothorax are

transversely arranged, the elytra each with two black spots on the outer part of the disc—one, trans-

verse, just before the middle, the other, oblique, near the apex. Head closely punctate, transversely

grooved between the eyes ; rostrum arcuate, long and very slender, slightly thickened at the base, finely

striate-punctate, smoother and longer in the 9, the antenne inserted near the middle in the ¢ , and at.

about the basal third in the 2. Prothorax transverse, rounded at the sides anteriorly, much narrowed

in front ; densely punctate, the punctures rounded and separate one from another, Elytra subtriangular,

narrowly punctate-striate, the interstices flat and asperato-punctate. Beneath closely punctate.

Prosternum with a smooth tranverse subapical excavation.

GERAUS. 265

¢. Prosternum armed with two short, widely-separated, slender, porrect spines; first ventral segment

flattened down the middle ; posterior tibie angularly dilated externally at about one-third from the apex

and more or less widened thence to the tip.

Length 34-44, breadth 2-24 millim. (¢ 2.)

Hab. Mexico, Toxpam, Cordova (Sallé); Guaremana, Zapote, Cerro Zunil

(Champion); Nicaracua, Chontales (Belt, Janson); Costa Rica, Escazu (Pittier) ;

Panama, Bugaba, Volcan de Chiriqui (Champion).

Numerous examples. Easily distinguished by the angularly dilated hind tibie of

the male. Less elongate than (7. senilis, the second spot on the elytra placed closer to

the margin and nearer the apex, the prosternal spines short, slender, and porrect. The

mandibles are slightly hollowed at the sides beneath. Centrinus podagricus, Boh.,

from Brazil, seems to have somewhat similar posterior tibie.

7. Gereeus senilis. (Tab. XIV. figg. 25, 25a, ¢.)

Centrinus senilis, Gyll. in Schénh. Gen. Cure. iii. p. 759°; Boh. in Schéuh. Gen. Cure. viii. 1,

p. 215*; Casey, Ann. N. York Acad. Sci. vi. pp. 576, 589(¢)’.

Gereus senilis, Pasc. Ann. & Mag. Nat. Hist. (6) iv. p. 323+.

Centrinus quadrisignatus, Dugés, in litt.’

Var. The black spots longitudinally confluent on each elytron.

Hab. NortH America, Santa Rita Mts. in Arizona *—Mexico!?4 (Truqui, in Mus.

Brit. ; Dugés, in U.S. Nat. Mus.), Guanajuato, Toxpam, Capulalpam, Etla, Parada

(Sallé), Chilpancingo (Hoge, H. H. Smith), Matamoros Izucar, Irapuato, Jalapa (Hége),

Amula, Xucumanatlan (H. H. Smith), Temax in N. Yucatan (Gaumer); GuaTEMALa,

Aceytuno (Salvin), Panzos, San Juan and San Gerénimo in Vera Paz (Champion) ;

Costa Rica (coll. Fry), Escazu (Biolley), Piedras Negras (U.S. Nat. Mus.).

A common insect in Mexico and sent us in great abundance by Mr. Gaumer. It is

found on a species of Croton, according to Prof. Biolley. G. senilis is a little more

elongate than any of its allies and the two black spots on the disc of each elytron

(which are sometimes small or evanescent, and sometimes longitudinally coalescent)

are placed one, transverse, before the middle, and the other, triangular, towards the

apex. The fully-developed male has the prosternum sulcate behind the deep, trans-

verse, polished, subapical excavation, and the spines about as long as the tarsi and

curved upwards ; the ventral depression in this sex is broad and-shallow. In two of

the Guatemalan examples the vestiture of the elytra is almost wholly black, except at

the base and along the suture. ‘The mandibles, as noted by Casey, are hollowed at the

sides beneath, appearing toothed at the base, when viewed in profile.

The length varies from 33-6 millim.

8. Gerzeus rectispinis, sp.n. (Tab. XIV. figg. 26, 26a, ¢.)

Subrhomboidal, black or piceous, the antennz and prosternal spines, and sometimes the rostrum and the legs

in part, ferruginous ; thickly clothed above and beneath with rather coarse, narrow, ochreous or flavo-

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1908. 23MM

266 RHYNCHOPHORA.

cinereous scales, which on the prothorax are transversely arranged, the elytra each with two trans-

verse black spots on the outer part of the disc—one, large, a little before the middle, the other, small,

near the apex. Head with a few minute punctures, transversely grooved between the eyes; rostrum

arcuate, long and slender, slightly thickened at the base, finely striate-punctate, longer and almost smooth

in the @, the antenne inserted at a little behind the middle in the d and nearer the base in the 9.

Prothorax transverse, rounded at the sides anteriorly, much narrowed in front; closely punctate. Elytra

subtriangular, narrowly punctate-striate, the interstices flat and asperato-punctate. Beneath closely

punctate. Prosternum with a transverse, smooth, subapical fovea, and a fovea on each side of it.

3. Prosternum tumid on each side of the very deep transverse subapical excavation, and armed with two

short, porrect spines, which in fully-developed examples are about as long as the tarsi; first ventral

segment broadly excavate and subglabrous down the middle.

Length 34-44, breadth 2-23 millim. (¢ @.)

Hab. Mexico (Mus. Brit.), Jalapa (Iége) ; Guaremata, Sabo and Chacoj in Vera

Paz (Champion), 'Trece Aguas (U.S. Nat. Mus.).

Fourteen specimens, eight of which are from Sabo. Less elongate than G. seniiis,

the second elytral spot placed nearer the outer margin, the short prosternal spines

straight, the ventral excavation of the male deeper and almost bare, the deep

prosternal excavation in this sex limited on each side by a curved prominence, the

mandibles without visible tooth at the sides beneath.

9. Gereus trinotatus, sp.n. (Tab. XIV. figg. 27, 27 a, 3, var.)

Subrhomboidal, black or piceous, the antennz, rostrum, prosternal spines, and legs in part, usually more or

less ferruginous, the elytra shining ; thickly clothed with rather coarse, narrow, flavo-cinereous scales,

which on the prothorax are transversely arranged, the elytra with a common, subquadrate patch on the

suture near the apex and an interrupted transverse patch on the disc before the middle infuscate or

black. Head closely punctate, transversely grooved between the eyes; rostrum long, arcuate, rather

slender, thickened at the base, striate-punctate, longer, flatter, and smoother in the 9, the antenne

inserted at the basal third in the 9 and at a little nearer the middle in the ¢. Prothorax transverse,

rounded at the sides anteriorly, much narrowed in front, closely punctate. Elytra subtriangular,

narrowly punctate-striate, the interstices flat and asperato-punctate. Beneath densely punctate.

Prosternum with a smooth deep subapical fovea.

Var. The transverse dark patch on the disc of each elytron reduced to two small spots, the inner spot in one

specimen (fig. 27) coalescent with the common subapical patch.

$. Prosternum with a large, deep, smooth, oval cavity extending forward to the transverse fovea in front,

and armed with two very long spines, which are curved downward at the tip; first ventral segment

slightly depressed down the middle.

Length 43-5, breadth 22-23 millim. (¢ @.)

Hab. Nicaracua, Chontales (Belt); Panama, Bugaba (Champion).

Three specimens from each locality, those from Chontales (taken as the types)

somewhat abraded and those from Bugaba with the transverse dark patch on the disc

of each elytron reduced to small spots. The four males agree in the form of the

prosternal spines and all have a dark subquadrate sutural patch. The mandibles are

hollowed at the sides beneath.

10. Gereus tenuispinis, sp.n. (Tab. XIV. figg. 28, 28a, 3.)

Very like G. trinotatus, but with the anterior elytral patch more or less triangular and placed about midway

between the base and apex, the common subapical patch reduced to a small or oblique spot on each side

GERAUS. 267

of the suture; the prosternum with a transverse subapical fovea and another fovea on each side of it,

the spines and excavation of the male varying in development, the spines in fully-developed examples

curved upward at the tip and as long as the elytra, in the undeveloped form reduced to two tubercles.

Length 3j—-4, breadth 12-2 millim. (¢ 9.)

Hab. Mexico, Toxpam (Sallé), Teapa (H. H. Smith); Guatemata, Chacoj, Cahabon,

and Chiacam in Vera Paz (Champion), Coban (Conradt) ; Panama, Bugaba (Champion).

Twelve specimens, varying in the extent of the elytral markings, but apparently

distinct from G. trinotatus. Five males have been received—two with very long

prosternal spines, one of these being shown on our Plate.

11. Gereeus cemas. (Tab. XIV. figg. 29, 29a, 2, var.)

Cenitrinus cemas, Boh. in Schénh. Gen. Cure. iii. p. 738 (¢)*; vill. 1, p. 212 (8 9)”.

Subrhomboidal, rather narrow, piceous, the rostrum, antennaw, legs, and base of the elytra more or less

ferruginous, the rest of the elytra black; thickly clothed with rather coarse pale ochraceous scales, the

elytra (an oblique streak on the outer part of the disc near the tip, and a few scattered scales along the

third and fifth interstices, and some others at the sides and apex, excepted) black from about the basal

fourth, the prothorax faintly trilineate with whitish and with the scales transversely arranged; the

vestiture of the under surface dense, yellowish-white. Head closely punctate, foveate between the eyes ;

rostrum arcuate, rather slender, not longer than the elytra, sparsely, finely punctate, thickened and

rougher at the base, the antennew inserted at about the basal third, the antennal club acuminate-ovate.

Prothorax transverse, rounded at the sides anteriorly, much narrowed in front; densely, finely punctate.

Elytra subtriangular; narrowly punctate-striate, the interstices asperato-punctate. Beneath densely

punctate. Prosternum with a transverse subapical impression and the subapical groove deeply impressed

behind each of the eyes.

Length 2°, breadth 13 millim. (¢@.)

Hab. Panama, Bugaba (Champion).—Braziu t.

This insect appears to be a small form of Centrinus cemas, Boh., and there are two

specimens in the series of that species in the British Museum very similar to the one

here described; the true C. cemas, however, has the elytra black to near the base.

Females only have been seen by me. The more extended black vestiture of the elytra

separates G. cemas from G. tenuispinis, both species having the prosternum bispinose

in the male.

12. Gereeus trilineatus, sp.n. (Tab. XIV. figg. 30, 30a, 3.)

Rhomboid-ovate, piceous, the prosternal spines, antenne, rostrum, and legs more or less ferruginous; thickly

clothed with rather coarse pale ochreous scales, the prothorax faintly trilineate with whitish, these lines

being continued along the suture and fifth elytral interstice, the elytra each with a transverse, rounded,

interrupted, blackish patch on the disc before the middle and a short oblique blackish streak near the

suture before the apex; the vestiture of the under surface white and dense. Head closely punctate,

foveate between the eyes; rostrum strongly arcuate, very long, thickened towards the base, striate-

punctate, the antenne inserted far behind the middle. Prothorax transverse, rounded at the sides

anteriorly, much narrowed in front; densely, finely punctate. Llytra subtriangular, narrowly punctate-

striate, the interstices asperato-punctate. Prosternum armed with two very long porrect spines, and also

with a broad smooth excavation between them extending forward to the transverse subapical fovea.

Louth 31-4, breadth 17-2 millim. (<¢.)

2MM 2

268 RHYNCHOPHORA.

Hub. Panama, Bugaba (Champion), Tabernilla and Lion Hill (Busck, in U.S. Nat.

Mus.). ,

Three males. Shorter and more ovate than G. tenwispinis, the prothorax and elytra

faintly trilineate with whitish, the interrupted dark patch on the elytra placed further

forward and at the middle of the disc. The third and fifth elytral interstices have

three, and the others two, rows of scales. |

13. Gereeus balaninoides, sp. n. (Tab. XIV. figg. 31, 31a, ¢.)

Oblong-subrhomboidal, rather dull, nigro-piceous, the antennz (the club excepted), prosternal spines, apical

half of the rostrum, and the legs in part, ferruginous ; rather sparsely clothed with narrow pale ochreous

scales, which are transversely arranged on the prothorax, the elytra with a few scattered intermixed

darker scales, the vestiture of the under surface a little closer and paler. Head sparsely punctate,

transversely grooved between the eyes; rostrum long, arcuate, rather slender, striate-punctate, the

antennge inserted behind the middle, the antennal club oblong-ovate. Prothorax transverse, densely,

finely punctate. Elytra subtriangular, narrowly punctate-striate, the interstices flat and asperato-puuctate.

Beneath densely punctate. Prosternum with a deep transverse subapical fovea, and armed with two

very long porrect spines, which are slightly curved upward at the tip, the space between them broadly

flattened and smooth, First ventral segment unimpressed. Anterior tarsi with a few bristly hairs, the

bilobed third joint broad.

Length 4, breadth 2 millim. (¢.)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One male. Smaller, duller, and narrower than G. serratispinis, the vestiture closer,

the elytra with fewer intermixed darker scales, the prosternal spines (which are as long

as the rostrum) not serrate, &c. G. balaninoides is a little more elongate than

G. tenuispinis, the vestiture is sparser and finer, and the scattered dark scales on the

elytra give a mottled appearance to the surface. It is very like a Balaninus.

14. Gerzeus biplagiatus, sp. n.

Elliptic, piceous, the antenne, rostrum, and legs more or Jess ferruginous; thickly clothed with narrow,

ochreous scales; the elytra each with a sharply-defined transverse blackish patch on the outer part of the

disc at about the middle, the scales on the interstices arranged in two or three lines (the first with one

line only from near the base); the vestiture of the under surface dense and whitish. Head densely

punctate; rostrum rather more than half the length of the body, strongly arcuate, slender and almost

smooth, abruptly thickened, squamose and laterally punctate at the base, the antenne inserted at the basal

fourth, the club acuminate-ovate. Prothorax strongly transverse, rounded at the sides anteriorly,

constricted in front; densely, finely punctate. Scutellum squamose. Elytra subtriangular, the humeri

rounded; finely punctate-striate, the interstices rugulosely punctate. Beneath densely, finely punctate.

Prosternum with a smooth, deep, transverse fovea towards the apex and also transversely excavate

behind each of the eyes. Anterior coxe separated by fully their own width. Legs moderately long;

anterior tibie unguiculate.

Length 23, breadth 17 millim. ( 9.)

Hab. Nicaragua, Chontales (Janson).

One specimen. This insect resembles G. rectispinis, but it is very much smaller,

the rostrum (2) is abruptly thickened at the base, the antenne are inserted at the

basal fourth, &c. The prosternum is doubtless bispinose in the male.

GERAUS. 269

15. Gerzus undatus, sp. n.

Subrhomboidal, rather convex, nigro-piceous or piceous, the rostrum, antenne, prosternal spines, tibie, and

tarsi ferruginous; somewhat thickly clothed with small, narrow, ochraceous or yellowish-white scales,

those on the prothorax long, hair-like, and transversely arranged, and those on the elytra almost wholly

condensed into a transverse sub-basal fascia (extending forward on to the scutellum), a common angu-

lated fascia beyond the middle, and a subquadrate apical patch, the rest of the elytral surface with

scattered, minute, fuscous scales ; the vestiture of the under surface close, yellowish-white. Head closely

punctate, shallowly foveate between the eyes; rostrum strongly arcuate, considerably longer than the

head and prothorax, rather slender, almost smooth, except at the sides towards the base, the antenne

inserted at about the middle, the antennal club ovate. Prothorax short, rounded at the sides from near

the base, constricted and narrow in front; densely, finely punctate. Elytra triangular, much wider than

the prothorax ; narrowly punctate-striate, the interstices flat and roughly punctulate. Beneath densely

punctate. Prosternum armed with two long or moderately long slender spines, and also very deeply

excavate down the middle anteriorly. Anterior coxe separated by fully their own width. Legs rather

long and slender.

Length 23-24, breadth 14-13 millim. (<¢.)

Hab, GuateMaLa, Senahu in Vera Paz, Cerro Zunil (Champion).

Two males—one, in fresh condition, taken as the type, from Senahu, the other worn,

with much longer prosternal spines, from Cerro Zunil. A small, short form near

G. tenuispinis, with two transverse pallid fasciz on the elytra—one basal, the other

angulate, beyond the middle. ‘The humeri are more prominent than in many of the

allied species.

16. Gereeus scabrosus, sp.n. (Tab. XIV. figg. 32, 32a, ¢.)

Subrhomboidal, black, the tarsi and prosternal spines obscure ferruginous ; sparsely clothed with short, decum-

bent, intermixed pallid and blackish, setiform scales ; the prothorax with a patch at each hind angle, the

elytra with one or two spots at the base on each side of the scutellum, and the mesothoracic epimera

densely clothed with narrow ochreous scales; the vestiture of the under surface and legs very sparse, fine,

and whitish. Head closely punctate, transversely grooved between the eyes; rostrum (¢) strongly

arcuate, long, much thickened towards the base, flattened at the tip, coarsely striate-punctate, ( 9 ) longer,

slender, and almost smooth, sparsely punctured and thickened at the extreme base and flattened thence to

the tip, the antenne inserted considerably behind the middle in the ¢ and at the basal third in the 9.

Prothorax transverse, rounded at the sides anteriorly, constricted and much narrowed in front; densely,

confluently punctate. Elytra subtriangular, narrowly punctate-striate, the interstices flat and rugosely

punctate. Beneath closely, rather coarsely punctate. Prosternum with a transverse impression in front

limited on each side by a short ridge.

g. Prosternum armed with two very long, porrect spines, which are curved downward towards the tip, and

with a deep circular excavation behind the transverse impression. First ventral segment broadly

depressed and sparsely punctate in the middle.

Length 51-51, breadth 24-24 millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

One pair. A roughly-sculptured form, with short, scattered, somewhat bristly

vestiture, and dense patches of ochreous scales at the hind angles of the prothorax, at

the base of the elytra, and on the side-pieces of the mesosternum; the rostrum very

differently shaped in the two sexes; the prosternum armed with long, downwardly-

curved spines in the male. ‘The following is the Guatemalan representative of the

same species *.

* I have seen a somewhat similar undescribed Mexican form belonging to the U.S. Nat. Mus., but it has a

short stout rostrum.

270 RHYNCHOPHORA.

17. Gerxus inornatus, sp. n. (Tab. XIV. figg. 33, 33 4, 2.)

Subrhomboidal, broad, black, the tips of the tarsi obscure ferruginous ; sparsely clothed with short, decumbent,

setiform, pallid scales, which are fine and longitudinally arranged on the prothorax, and coarser and

intermixed with narrow black scales on the elytra, the latter with an ill-defined ochreous patch at the

base of the second and third interstices ; the vestiture of the under surface and legs sparse and wholly

white. Head closely punctate, foveate between the eyes; rostrum moderately curved, flattened, very

long and slender, thickened and punctured at the base, for the rest smooth, the antenne inserted at

about the basal fourth, the antennal club ovate. Prothorax transverse, rounded at the sides anteriorly,

constricted and much narrowed in front; densely, rugosely punctate, and with an incomplete smooth

median line. FElytra rather long, subtriangular, flattened on the disc; punctate-striate, the interstices

flattened and rugosely punctate. Beneath closely, coarsely punctate, smoother along the middle.

Prosternum with a transverse impression in front limited on each side by a short ridge. Anterior cox

widely separated.

Length 71, breadth 32 millim. ( 2.)

Hab. Guatemaa, Sinanja in Vera Paz (Champion).

One female. Larger than G. scabrosus (2), the elytra relatively longer, the

prothorax and mesosternum without dense patches of ochreous ‘scales, the prothorax

with a smooth median line, the rostrum longer, &c.

18. Gereeus lineellus. (Tab. XV. figg. 1, 1a, 3.)

9. Centrinus lineellus, Lec. Proc. Acad. Phil. 1859, p. 79‘; Proc. Am. Phil. Soc. xv. p. 3127;

Casey, Ann. N. York Acad. Sci. vi. p. 592°; Canad. Ent. 1904, p. 323‘.

&. Centrinus dolus, Schauf. Rev. Zool. 1866, p. 418°.

3. Prosternum armed with two porrect spines, which are sometimes nearly as long as the rostrum, and more

or less sulcate; first ventral segment depressed down the middle ; anterior tibie slightly hollowed towards

the apex within and sharply unguiculate; antenne inserted beyond the middle of the rostrum.

Hab. *Norta America, Tejon in California!?*.—Mexivo, Motzorongo (Flohr),

Atoyac in Vera Cruz (H. H. Smith), Playa Vicente (Sallé), Cordova (U.S. Wat.

Mus.), Teapa (Sallé, Hoge, H. H. Smith); British Honpuras, Belize, Rio Hondo

(Blancaneaux); GuavEMaLa*, Senahu, Sabo, San Juan, Chiacam, and San Gerdnimo in

Vera Paz, Guatemala City, Zapote (Champion), Coban (Conradt), Trece Aguas (U.S.

Nat. Mus.) ; Nicaragua, Chontales (Janson) ; Costa Rica, Higuito, Reventazon, San

José, Surubres (Biolley), Tucurrique, Zent, Puerto Limon (U.S. Nat. Mus.); Panama,

Volcan de Chiriqui (Champion).—CoLoMBIa °.

One of the commonest Centrinides in Central America, and readily recognizable by

its sharply vittate prothorax and elytra. ‘The locality ‘‘ California” is doubtful, as

noted by Casey*. Some of the specimens sent by Biolley are labelled as having been

found on Polygonum puactatum and Calea axillaris. ‘The prosternal spines are very

long and porrect in fully-developed males, as described by Schaufuss. The second

joint of the funiculus is much shorter than the first. The length varies from

GERAUS. 271

19. Gerzus trivittatus, sp.n. (Tab. XV. figg. 2, 2a, 3.)

Subrhomboidal, black; the prothorax and elytra with three rather broad continuous vitte (the outer ones

submarginal on the elytra, the median one confined to the sutural interstice and not extending to the

scutellum), which are sometimes connected across the anterior portion of the pronotum, the anterior half

of the prothorax beneath, and the metathoracic episterna, densely clothed with narrow ochreous scales,

the rest of the vestiture of the upper surface close and black, and that of the under surface and legs white,

the rostrum with a few hair-like ochreous scales. Head closely punctate, transversely grooved between

the eyes; rostrum strongly arcuate, longer than the head and prothorax, stout in its basal half and

becoming more slender thence to the tip, striate-punctate, the apical half much smoother in the 9, the

antenne inserted at (2) or beyond ( ¢) the middle, joints 1 and 2 of the funiculus elongate, 2 nearly as

long as 1, the club ovate. Prothorax transverse, subconical, feebly constricted in front ; densely, finely,

confluently punctate. Elytra subtriangular, narrowly punctate-striate, the interstices broad and densely,

rugulosely punctate. Beneath densely punctate. Prosternum slightly depressed down the middle in front

of the coxe, the-latter narrowly separated. Tibize strongly unguiculate.

¢$. Prosternum armed with two downwardly-directed spines ; first ventral segment flattened down the middle ;

anterior tibiz slightly hollowed on the inner side at the apex.

9. Prosternum with a small conical tubercle in front of each anterior coxa which is sometimes obsolete.

Length 34-43, breadth 14-22 millim. (¢ 2.)

Hab. Mexico (Mus. Brit.; coll. Solari), Orizaba (Sallé); Guatemana (Sallé), near

the city (Salvin), Capetillo, Duefias, San Gerénimo (Champion), Chimaltenango (Con-

radt), Senahu (Haase, in U.S. Nat. Mus.) ; Panama, Volcan de Chiriqui (Champion).

Numerous examples. A well-marked species, easily distinguishable by the three

sharply-defined, continuous, ochreous vitte on the prothorax and elytra, and the

elongate first and second joints of the funiculus. Larger than G. lineedlus, the rostrum

very much stouter towards the base, the prothorax more transverse, the prosternal

spines short, &c.

20. Gereeus tetrastigma, sp.n. (Tab. XV. figg. 3, 3a, 3.)

Rhomboidal, nigro-piceous, the antenne and tarsi fusco-ferruginous ; somewhat thickly clothed with small,

narrow, intermixed brown and whitish scales, the latter clustered into three faint vittze on the prothorax,

a short streak on the second elytral interstice at the apex and another on the fourth near its point of

termination, the scales on the elytra arranged in two or three rows down each interstice ; the vestiture

of the under surface whitish and ochreous intermixed. Head closely punctate; rostrum strongly arcuate,

longer than the head and prothorax, rather slender, striate-punctate and also carinate, smoother at the

tip, the antennz inserted at a little beyond the middle, the antennal club ovate. Prothorax transverse,

conical, constricted in front; densely, finely, confluently punctate, the narrow interspaces sinuous and

rugiform. Elytra triangular, narrowly striate, the interstices flat, broad, and closely punctate, 2 a little

wider than the others. Beneath densely punctate; first ventral segment excavate and smoother down

the middle. Prosternum armed with two long, porrect spines, and also shallowly sulcate. Anterior tibix

strongly unguiculate, slightly hollowed towards the apex within.

Length 44-42, breadth 1%, millim. (<¢.)

Hab. Mexico (Hoge, in coll. Solari).

Two males, for one of which we are indebted to Signor Solari. The two whitish

streaks on each elytron near the apex are conspicuous, and the second dorsal

interstice is a little wider than the others. The mandibles are straight on their inner

272 RHYNCHOPHORA.

edge. G. tetrastigma approaches G. trivittatus, but the vestiture is very differently

coloured.

21. Gerzeus teniatus, sp.n. (Tab. XV. figg. 4,44, 2.)

Rhomboidal, rather narrow, black; the prothorax with three narrow vitte (the median stripe continued on to

the scutellum and the outer ones extending downwards) and the elytra with a line down the whole length

of the fourth interstice, a short streak at the base and apex of the second, and a minute spot at the base

of the sixth, thickly clothed with narrow pure white scales; the rest of the vestiture of the upper surface

almost entirely black, that of the under surface (a broad space along the upper part of the propleura

excepted) close and wholly white, the legs with hair-like white scales. Head finely punctate, shallowly

foveate between the eyes; rostrum strongly arcuate, longer than the head and prothorax, rather slender,

thickened and closely punctate at the base, the other portion much smoother, the antenne inserted at a

little behind the middle, the antennal club ovate. Prothorax transverse, subconical, scarcely constricted

in front, the sides parallel at the base; densely, finely punctate. Elytra triangular, narrowly punctate-

striate, the interstices rugulosely punctate. Beneath densely punctate. Prosternum unimpressed

behind the transverse subapical groove. Anterior coxe rather narrowly separated. Legs moderately long.

Length 32, breadth 13 millim. ( 9.)

Hab. Panama, Volcan de Chiriqui 38000 feet (Champion).

One female, in very fresh condition. This insect has three narrow sharply-defined

vittee on the prothorax and a line down the whole length of the fourth elytral interstice

pure white. The prothorax is short and the elytra triangular. G. teniatus seems to

be nearest allied to G. lineellus and the male therefore probably has a bispinose

prosternum. |

22. Gereeus flagellifer, sp.n. (Tab. XV. figg. 5, 5a, b, 2.)

Rhomboid-elliptic, flattened above, shining, black; the elytra and the sides of the prothorax sparsely clothed

with narrow, setiform, yellowish-white scales, the scales on the elytra clustered into one or two lines

along each interstice, the vestiture of the under surface a little coarser and closer, that of the legs fine.

Head finely punctate, transversely grooved between the eyes; mandibles toothed at the base beneath ;

rostrum strongly arcuate, slightly longer than the elytra, rather slender, widened at the tip, almost

smooth, except on each side at the base, the antenne inserted far behind the middle, the funiculus

slender, with joint 1 greatly elongated, about as long as 2-6 united, the club rather narrow, oblong-ovate.

Prothorax transverse, with the sides arcuately converging from the base, constricted and narrow in front;

the dise sparsely, except along the smooth median space, and the sides densely, punctate. Scutellum

oblong-subquadrate. Elytra rounded-triangular, sharply, narrowly striate, the interstices broad, flat,

and finely biseriate-punctate. Beneath closely punctate. Prosternum shallowly sulcate down the middle

anteriorly. Anterior coxe separated by abcut their own width. Tibie without visible uncus at the

apex.

Length 33, breadth 2 millim. ( 9.)

Hab. Nicaracoa, Chontales (Janson).

One female, rather worn. This species has the rostrum strongly arcuate, long, and

almost smooth, the basal joint of the funiculus relatively very long, about half the length

of the scape, the prothorax bare on the disc, the vestiture of the elytra arranged in

one or two lines along each interstice, the tibia unarmed at the apex. The male

probably has a bispinose prosternum. G. flagellifer approaches G. lineellus, near which

it can be placed for the present.

GERAUS.

23. Gereeus crucifer, sp. n. (Tab. XV. figg. 6, 64, 3.)

Centrinus crucifer, Pilate in litt.

Elliptic, black ; densely clothed above and beneath with rather large whitish or brownish-white scales, the

prothorax with two vitts on the disc (sometimes confluent and sometimes each divided into two spots),

and often a small spot on each side anteriorly, the scutellum, and the elytra each with a large subquadrate

patch on the disc before the middle (extending inwards to the first stria) and a smaller patch towards the

apex, these markings usually connected along the sides, fuscous. Head closely punctate; rostrum

strongly arcuate, longer than the head and prothorax, moderately stout, rather closely punctate, smoother

in the 9, the antenne inserted at about the middle, the antennal club ovate. Prothorax broader than

long, arcuately narrowing from the base, constricted in front; very densely punctate, and sometimes

with a smooth raised median line. Elytra rounded-triangular ; finely punctate-striate, the interstices

densely punctate. Beneath densely punctate. Prosternum unimpressed behind the transverse subapical

groove. Anterior cox separated by fully their own width.

$. Prosternum armed with two compressed conical tubercles, and also excavate between them ; first ventral

segment depressed down the middle.

Length 3-34, breadth 14-1,%, millim. (¢ 9.)

]

Hab. Mexico, Yucatan (Dupont, in Mus. Brit.), Temax in N. Yucatan (Gauwmer).

Sent us in numbers by Mr. Gaumer, but most of the specimens are in bad condition.

The markings of the upper surface vary according to the predominance of the whitish

or fuscous scales, which are rather large and closely placed, both above and beneath.

The prosternal tubercles are small. Centrinus bicoloratus, Boh., from Brazil, is an

allied form. G. bicruciatus (infra), too, is very like the present species, but it has

an unarmed prosternum in the male.

24. Gereeus octomaculatus, sp. n. (Tab. XV. figg. 7, 7a, 2.)

Oblong-elliptic, flattened above, black; thickly clothed with brownish-white scales, the prothorax with two

large spots on the disc at the base and a similar spot at the sides before the middle, the scutellum, and

the elytra each with a broad transverse fascia on the disc before the middle extending up the side to the

base and a subtriangular patch just before the apex (these markings extending inward to the first stria),

black. Head finely punctate, transversely depressed between the eyes; rostrum strongly arcuate,

-. rather stout, thickly punctate at the base, the apical half much smoother. Prothorax densely, finely

punctate, with a smoother raised median line. LElytra finely punctate-striate, the interstices densely

punctate. Beneath densely punctate. Prosternum unimpressed behind the transverse subapical groove.

Anterior coxee separated by about their own width.

- Length 4, breadth 2 millim. (2.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé).

One female. ‘This is the Vera Cruz form of the Yucatan G. crucifer, differing from

that insect in its more elongate shape and in the disposition of the dark spots on the

prothorax, these being equal in size—two on the disc at the base and one on each side

before the middle. The prosternum is doubtless spined in the male.

95. Gerzeus perscitus. (G. marginatus, Tab. XV. figg. 8, 8a, ¢ .)

Curculio perscitus, Herbst, Kafer, vii. p. 28, t. 99. fig. 3°.

Centrinus perscitus, Schénh. Gen. Cure. iii. p. 764°; Lec. Proc. Am. Phil. Soc. xv. p. 312°; Casey,

Ann. N. York Acad. Sci. vi. pp. 576, 587°. .

Elliptic, flattened above, black ; densely clothed with small brown scales, with a few scattered white scales

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1908. 2NN

274 RHYNCHOPHORA.

intermixed, the sides of the prothorax broadly, a spot on the shoulder, another on each side of the

scutellum, and the base of the suture ochreous or whitish; the vestiture of the under surface similarly

coloured. Head densely punctate; rostrum stout, strongly arcuate, a little longer than the head and

prothorax, rugulosely punctate, the apical half much smoother in the 9, the antenne inserted at about

the middle, the antennal club ovate. Prothorax transverse, feebly constricted in front, the sides arcuately

converging from the base; densely, very finely punctate. Elytra subtriangular, finely punctate-striate,

the interstices densely punctate. Beneath densely, finely punctate. Anterior coxe separated by about

half their own width. Legs short.

$. Prosternum armed with two short spines, and also excavate between them; anterior tibie feebly ungui-

culate ; first ventral segment broadly depressed down the middle.

Length 23-34, breadth 14-12 millim. (¢ 9.)

Hab. Nortn America! 2, Georgia and Texas ?, New Jersey and Indiana 4.—Mexico

(Truqui, in Mus. Brit.), Guanajuato (Sallé), Temax (Gaumer), Progreso (U.S. Nat. Mus.);

GUATEMALA, near the city, Capetillo (Champion) ; Nicaragua, Managua (coll. Solari).—

ANTILLES, Grenada.

Three males and seven females. Recognizable by the dense brownish vestiture and

the broadly ochreous or whitish margins of the prothorax. G. perscitus approaches

G. crucifer, but it has the anterior coxee much less widely separated.

26. Gerseus hirtipes, sp.n. (Tab. XV. figg. 9, 9a, 3.)

Subrhomboidal, black, the prosternal spines sometimes ferruginous; somewhat thickly clothed with rather

coarse cinereous or brownish-white scales, which are arranged in two or three lines along each elytral

interstice, the vestiture of the under surface similar. Head closely punctate, obsoletely foveate between

the eyes ; rostrum arcuate, stout, depressed at the base above, longer than the head and prothorax, closely

punctate, the apical half smoother and more slender in the 9, the antenne inserted near the middle, the

antennal club ovate. Prothorax transverse, subconical, feebly constricted in front; densely, confluently

punctate, and with indications of a smooth median line. Elytra subtriangular, deeply punctate-striate,

the interstices feebly convex, asperato-punctate, each elytron usually with a smoother transverse space

on the outer part of the disc at about the middle. Beneath closely punctate. Anterior coxse narrowly

separated. Legs more or less pilose.

3. Prosternum armed with two long, compressed, upwardly-curved spines, and also excavate between them ;

first ventral segment broadly depressed down the middle; all the tibiee within, and the femora beneath,

hairy or ciliate, the anterior tibie sinuous within and strongly unguiculate at the apex.

Length 33-43, breadth 2-24 millim. (¢ 9.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé); Guaremaua, Sinanja in Vera Paz

(Chanipion).

Seven specimens, all more or less worn (though the smoother bare spaces on the

elytra are probably not abraded), one only (a rubbed ¢ ) being from Guatemala. The

scales on the under surface are not larger than those on the upper surface. The males

have the femora and tibie much more hairy than the females.

27. Gerzus spiniger, sp.n. (Tab. XV. fige. 10, 10a, ¢.)

Rhomboidal, black, the prosternal spines and antennz fusco-ferruginous; densely clothed with narrow white

or brownish-white scales, which are arranged in three or four compact rows down each elytral interstice,

the scales on the under surface a little larger, white, completely hiding the sculpture. Head closely pune-

tate ; rostrum arcuate, a little longer than the head and prothorax, stout, closely punctate and squamose

to the tip, the apical half in the 2 more slender, bare, and almost smooth, the antenne inserted at a

little beyond (3) or slightly behind ( Q ) the middle, the antennal club ovate. Prothorax broader than

GERAUS. 275

long, conical, feebly constricted in front ; densely, finely punctate, with indications of a smooth median

line. Scutellum almost bare. Elytra triangular, finely punctate-striate, the interstices densely punctate.

Beneath densely punctate.

3. Prosternum armed with two moderately long compressed spines (reduced to two triangular prominences

in one specimen from Capetillo and in another from San Andres Tuxtla); anterior tibie narrow,

strongly unguiculate, sinuous and clothed with a few very long hairs within, the anterior femora also

hairy beneath.

Length 41-44, breadth 2,1,-22 millim. (¢ 2.)

Hab. Mexico, San Andres Tuxtla, Juquila (Sallé), Jalapa (Hoge); GuaTEMALa, near

the city (Salvin), Capetillo (Champion), Coban (Conradt).

Five males and nine females. Distinguishable from G. hirtipes and allied forms

with bispinose prosternum in the male by the dense vestiture, above and beneath.

The anterior tibie of the male are narrow, sinuous within, and clothed with long hairs.

28. Gereus triplaris, sp. n.

Broad, rhomboidal, shining, black, the antenne and tarsi piceous ; above (the base of the rostrum included)

closely, uniformly clothed with narrow, hair-like, white scales, those on the elytra setiform and arranged

in about three rows along each interstice, the scales on the under surface larger and also white, the tibic

set with short brown hairs at the apex. Head closely punctate, transversely depressed between the eyes ;

rostrum arcuate, longer than the head and prothorax, depressed at the base above, the short basal portion

much thickened and rugosely punctate, the other portion bare, flattened, very sparsely punctate,

and rather slender, the antenn# inserted at about the basal third, the antennal club ovate, stout.

Prothorax broader than long, subconical, strongly constricted in front, the sides rounded anteriorly,

the base deeply bisinuate; densely, finely, confluently punctate, and with an incomplete, smooth,

raised median line. Scutellum narrow, triangular, smooth. Elytra subtriangular, narrowly punctate-

striate, the interstices broad, flat, and densely asperato-punctate. Beneath densely punctate. Pro-

sternum slightly depressed down the middle. Anterior cox rather narrowly separated. Legs

comparatively stout; tibiae widened and strongly unguiculate at the apex; tarsal claws long and

divergent.

Length 53, breadth 33 millim. (2.)

Hab. Mexico, Jalapa (fHége).

One female in very fresh condition. A broad, rhomboidal form, with the white

vestiture of the upper surface close, fine, and uniformly arranged; the scutellum

narrow and glabrous; the rostrum greatly thickened and rugose at the base; the

mandibles short. Larger, broader, and more robust than G. spiniger, the vestiture

sparser, above and beneath, hair-like on the elytra, the antennal club larger, the

rostrum longer, &c. The prosternum is doubtless bispinose in the male.

29. Gerzeus sinuatipes, sp.n. (Tab. XV. fig. 11, anterior tibia, ¢.)

Subrhomboidal, rather narrow, black or piceous, the tip of the rostrum ferruginous ; somewhat thickly clothed

with narrow brownish-white scales, which are clustered into two or three lines down each elytral interstice

(the first with one line only from about the basal third), the vestiture of the under surface closer and

paler. Head finely punctate; rostrum arcuate, longer than the head and prothorax, stout, tapering

towards the tip, closely punctate, the antenne inserted at a little beyond the middle, the antennal club

ovate. Prothorax transverse, subconical, feebly constricted in front; densely punctate. Scutellum

squamose. Elytra subtriangular, sharply punctate-striate, the interstices rugulosely punctate. Beneath

densely punctate. Prosternum with a transverse depression in the subapical groove.

2NN 2

276 RHYNCHOPHORA.

¢. Prosternum armed with two short upwardly-curved spines, and also slightly hollowed between them ;

anterior tibiee strongly unguiculate, dilated on the inner side near the base and hollowed thence to the

apex, sparsely ciliate within.

Length 32, breadth 1,%—2 millim. (<¢.)

Hab. Mexico, Juquila (Sailé); Guatemata, Capetillo (Champion).

Three males, all a little worn. ‘Two females in better condition from Amula (//. /.

Smith), with the apical half of the rostrum bare and sparsely punctate, may also

belong here. Smaller, narrower, and more sparsely squamose than G. spiniger, the

scutellum clothed with scales, the anterior tibie (¢) dilated near the base and

clothed with shorter hairs, the femora without long hairs beneath. The bispinose

prosternum separates G. sinuatipes from G. tonsilis, &c.

30. Gerzeus gracilis, sp. n.

Subrhomboidal, narrow, black, the antennze, mandibles, and tarsi obscure ferruginous; thickly clothed with

narrow white or brownish-white scales, which are arranged in two or three rows down each interstice, the

scales on the under surface pure white, larger, and more closely placed. Head sparsely punctate;

rostrum arcuate, longer than the head and prothorax, moderately stout, closely punctate—the apical

half in the 2 more slender, bare, flattened, and almost smooth,—the antenne inserted at ( ¢ ) or behind

(2) the middle, the antennal club ovate. Prothorax transverse, subconical, densely punctate. Scutellum

almost bare. LElytra subtriangular, finely punctate-striate, the interstices densely, rugulosely punctate.

Beneath densely punctate. Anterior cox narrowly separated.

g. Prosternum armed with two slender spines ; first ventral segment shallowly depressed down the middle,

the fifth with a transverse, almost bare excavation; anterior tibis narrow, strongly unguiculate, sinuate

within.

Length 24-3}, breadth 14-13 millim. (¢ 2.)

Hab. Mexico, Chilpancingo, Amula (H. H. Smith: 3 2), Temax in N. Yucatan

(Gaumer: 3).

Five males and one female. A small, narrow form with uniform whitish vestiture,

the scutellum almost bare, the prosternum armed with two slender spines in the male.

31. Gergzeus spinipectus, sp. n.

Subrhomboidal, narrow, black or piceous ; above rather sparsely clothed with small, narrow, yellowish-white

scales, which are arranged in two or three rows down each elytral interstice, the vestiture of the under

surface coarser, denser, aud wholly whitish. Head finely punctate; rostrum arcuate, much longer than

the head and prothorax, moderately stout, slightly thickened towards the base, closely punctate, the

antennee inserted at about the middle. Prothorax short, subconical, constricted in front ; densely, finely

punctate, with indications of a smooth median line. Elytra subtriangular, narrowly punctate-striate, the

interstices rugulosely punctate. Beneath densely punctate ; first ventral segment broadly depressed down

the middle, the fifth not excavate. Prosternum armed with two moderately long, slender, porrect spines.

Anterior tibie narrow, unguiculate at the apex.

Length 31-34, breadth 14-1§ millim. (¢.)

Hab. Guatemaua, near the city (Salvin).

Three specimens, one rather immature. Closely related to the Mexican G. gracilis,

but with a relatively shorter prothorax and finer vestiture above, the fifth ventral

segment of the male unimpressed, the prosternal spines longer. This last-mentioned

character separates G, spinipectus from various other similar forms.

GERZUS., 277

32. Gerzeus convexiusculus, sp. n.

Subrhomboidal, rather convex, shining, black, the extreme tip of the rostrum ferruginous ; above thickly and

uniformly clothed with narrow whitish scales, those on the elytra arranged in two or three rows down

each interstice (the first interstice with one row only from a little below the base); the under surface

densely set with larger white scales. Head closely punctate; rostrum much longer than the head and

prothorax, strongly arcuate, stout, squamose and closely punctate to the tip in the ¢, the apical half

somewhat flattened, bare, and much smoother in the 9, the antenne inserted at about the middle, the

antennal club ovate. Prothorax much broader than long, rapidly and arcuately narrowing from the base,

constricted in front; densely, finely, confluently punctate. Scutellum punctate and squamose. Elytra

rather short, subtriangular ; finely punctate-striate, the interstices rugulose. Beneath densely punctate.

Prosternum armed with two short spines in the ¢. Tibi strongly unguiculate, especially in the 6,

the anterior pair slightly hollowed on the inner side towards the apex in this sex.

Length 24-8, breadth 12-13 millim. (¢ 9.)

Hab. Guaremaua, Capetillo (Champion).

Three males and two females. A comparatively short, convex form, with uniform

whitish vestiture, the male with a long, stout, squamose rostrum and two short pro-

sternal spines, the tibie strongly unguiculate in this sex. Broader and more convex

than G@. gracilis, the scutellum squamose, the prosternal spines stouter, the anterior

tibize of the male less sinuate within *.

33. Gereeus bituberculatus, sp. n.

Oblong-rhomboidal, narrow, flattened above, dull, black or piceous ; above clothed with small, narrow, black or

brown scales, with a few scattered white scales intermixed, the vestiture of the under surface closer,

coarser, and wholly white, that of the legs also whitish. Head closely punctate; rostrum strongly

arcuate, rather longer than the head and prothorax, stout, tapering towards the tip, coarsely punctate at»

the base, sparsely so towards the apex, the antenne inserted at the middle, the antennal club ovate.

Prothorax transverse, conical, densely, finely punctate. Scutellum oblong, narrow. Elytra rather

long, subtriangular; finely punctate-striate, the interstices densely punctate. Beneath densely punctate ;

first ventral segment flattened down the middle. Prosternum armed with two small, compressed, conical

tubercles. Legs rather long; anterior tibie narrow, sinuous and finely ciliate within, armed at the apex

with a long claw.

Length 343-33, breadth 13-13 millim. (<¢.)

Hab. Mexico (Truqui, in Mus. Brit.), Chilpancingo (H. H. Smith).

Two males, one somewhat immature and found many years ago by Truqui, the two

agreeing perfectly inter se. The fine dark vestiture of the upper surface, with a few

white scales intermixed, the bituberculate prosternum, and the unusually long claw of

the anterior tibia, distinguish G. ituberculatus, at least in the male sex.

34, Gerzeus perscillus.

Centrinus perscillus, Gyll. in Schénh. Gen. Cure. iii. p. 762’; Casey, Ann. N. York Acad. Sci. v.

pp. 575, 5847.

° Centrinus perscillus, Lec. Proc. Am. Phil. Soc. xv. p. 310°.

Hab. Norta America!, Kansas 3 and Minnesota2.—Mexico, Presidio (forrer),

Cordova, Jalapa (Hége) ; Bririsn Honpvras, R. Sarstoon (Blancaneaux).

* Centrinus biseriatus, Kirsch, from Peru, is an allied form with finer vestiture, less prominent humeri, &e.

278 RHYNCHOPHORA.

Five males and three females are somewhat doubtfully referred to this species, a

N.-American specimen of which has been sent me by Casey under the name C. perscitus.

The males have a conical tubercle in front of each anterior coxa, the anterior coxe

separated by about their own width, the anterior tibie rather broad and very feebly

unguiculate, the first ventral segment without a barer space in the middle. The

vestiture is dense and uniformly coloured.

35. Gerzeus picumnus.

Curculio picumnus, Herbst, Kafer, vii. p. 30, t. 99. fig. 9°.

Baridius picumnus, Say, Descr. N. Am. Cure. p. 17°; ed. Leconte, i. p. 281°.

Centrinus picumnus, Schénh. Gen. Cure. viii. 1, p. 221°.

Centrinus olivaceus, Gyll.in Schénh. Gen. Cure. iii. p. 763°; Lec. Proc. Am. Phil. Soc. xv. p- 311°;

Casey, Ann. N. York Acad. Sci. vi. pp. 575, 5817.

Centrinus sutor, Harris, Trans. Hartford Nat. Hist. Soc. i. p-. 81°.

Hab. Norvn Amzrica !~6 8, New York to Florida and Arizona?.—MeExico ( Truqui),

San Rafael Jicaltepec (U.S. Nat. Mus.), Teapa (H. H. Smith), Yucatan (Gaumer) ;

GuatemaLa, San Gerdnimo, Chiacam, Senahu, and San Juan in Vera Paz (Champion) ;

Nicaragua, Chontales (Janson), Managua (Solari); Costa Rica, Reventazon (Biolley) ;

Panama, Tabernilla (U.S. Nat. Mus.), Taboga I. (Champion).

Specimens from the above-quoted localities agree with others from the United States

sent me by Casey and Wickham as G. picumnus. They have the flanks of the pro-

thorax excavate behind the eyes; the vestiture close, fine, and uniformly coloured ; the

males with the prosternum deeply excavate and armed with two curved slender spines,

the anterior tibiee without visible uncus at the apex, and the first ventral segment with

a large, rounded, sparsely squamose space in the middle. The mandibles are toothed

at the base beneath.

36. Gereeus managuensis, sp. n.

Subelliptic, piceous, the rostrum, antenne, and legs obscure ferruginous; somewhat thickly and uniformly

clothed with small, hair-like, yellowish-white scales, which are arranged in two rows down each elytral

interstice, the first with one line only ; the vestiture of the under surface closer and pure white. Head

closely punctate, faintly foveate between the eyes ; rostrum rather slender, strongly arcuate, a little

longer than the head and prothorax, the basal half closely, and the rest more finely and sparsely, punctate,

smoother inthe 9, the antenne inserted near the middle in the g and at about the basal third in the

2, the club ovate. Prothorax short, conical, feebly constricted in front, the basal lobe entering the

scutellar cavity ; densely, finely punctate. Scutellum very small, squamose.

the humeri not prominent ; finely and sharply striate, the interstices rugulosely punctate. Beneath

densely punctate. Prosternum of the 3 shallowly sulcate and armed with two very small conical tubercles,

which are almost hidden by the vestiture. Anterior coxe distant. Legs short; anterior tibise without

visible uncus in either sex.

Length 13-2, breadth jy-1 millim. (5 9.)

Elytra rounded-triangular,

Hab, Nicaragua, Managua (Solari).

One pair. Smaller than G. picumnus, the vestiture of the elytra sparser, the

GERZAUS. 279

prothorax conical, the scutellum minute, the prosternal prominence of the male small

and almost hidden by the vestiture. One of the smallest of the Central-American

Centrinids.

37. Gerzeus lentiginosus. (Tab. XV. figg. 12, 124, ¢.)

Centrinus lentiginosus, Boh. in Schénh. Gen. Cure. viii. 1, p. 2217.

Elliptic, nigro-piceous or black, the antenna, legs, and apical half of the rostrum more or less ferruginous ;

thickly clothed with narrow ochreous or cinereous scales, which are arranged in two or three close rows

down each elytral interstice, the elytra usually with a common light or dark brown spot on the suture

beyond the middle and a faint brownish spot on the disc in a line with it; the vestiture of the under

surface closer, coarser, and whiter. Head closely punctate; rostrum strongly arcuate, nearly half the

length of the body, moderately stout, squamose, thickly punctate, and subcarinate in its basal half and

sparsely punctured thence to the tip, the apical half much smoother in the 9, the antennee inserted at

about the middle, the antennal club ovate and rather small. Prothorax transverse, arcuately narrowing

from the base, feebly constricted in front; densely, finely punctate. Scutellum squamose. Elytra finely

striate, the interstices densely rugulose. Prosternum squamose, more or less suleate in the ¢ , usually

armed in the ¢ with two short, downwardly-directed, conical tubercles, which in fully-developed examples

are produced into moderately long, curved, slender spines. Anterior tibix in the ¢ strongly, in the 9

feebly unguiculate, hollowed within in the ¢.

Length 23-3, breadth 14-14 millim. (¢ 9.)

Hab. Mexico (Mus. Brit.), Orizaba (coll. Chevrolut', H. H. Smith), Toxpam (Sailé),

Atoyac (H. H. Smith), Cordova, Jalapa (Hoge), Cuernavaca (U.S. Nat. Mus.), Teapa

(Hoge, H. H. Smith); Guatemata, Cerro Zunil, Zapote, Capetillo, Guatemala City,

San Gerdnimo, Sabo (Champion), Trece Aguas (U.S. Nat. Mus.); Costa Rica (coll.

Solari), San José, Caché (Liolley), San Carlos, Zent (U.S. Nat. Mus.).

This is one of three species standing under the name Centrinus lentiginosus in the

Sallé collection, and the one that agrees best with Boheman’s description, which must

have been taken from an immaculate example, most of our specimens having a brown

spot on the suture beyond the middle. ‘The prosternal spines, which are sometimes

obsolete, are rather long and curved in several of the Costa Rican examples, and short

and tuberculiform in most of those from Mexico, the median sulcus varying in depth

according to the development of the spines.

38. Gerzeus simulator, sp. n.

Elliptic, rather narrow, nigro-piceous or piceous, the antennz and legs usually more or less rufescent ; some-

what sparsely clothed with narrow ochreous or cinereous scales, the elytra with intermixed fuscous scales,

which are often condensed into a common transverse patch at the middle of the suture, a small spot on

each side of it, and another on the disc near the apex, the elytral vestiture usually arranged in double or

treble lines down the interstices 2, 4, and 6, and in a single line on the others ; the under surface uniformly

clothed with ochraceous or whitish scales. Rostrum a little longer than the head and prothorax, strongly

arcuate, stout, closely punctate and subcarinate, scarcely smoother in the 9. Prothorax transverse,

narrowing from the base, densely punctate. Elytra narrowly punctate-striate, the interstices rugulosely

punctate. Prosternum deeply sulcate in the ¢, almost unimpressed behind the transverse subapical

groove in the 9, armed in the ¢ with two spines or conical tubercles, the spines in well-developed

examples stout and curved. Anterior tibiz sharply unguiculate in both sexes.

Length 2-21, breadth 1-1; millim. (¢d 2.)

280 RHYNCHOPHORA.

Hab. Mexico, Jalapa (Hége), Toxpam (Sallé), Teapa (Sallé, H. H. Smith); GuateE-

MALA, Trece Aguas (U.S. Nat. Mus.). ;

Found in numbers at Teapa. Smaller, narrower, and more sparsely squamose than

G. lentiginosus ; the rostrum stouter, especially in the male; the elytra with numerous

intermixed fuscous scales, which are usually condensed into a common transverse spot

at (instead of beyond) the middle of the suture, the vestiture arranged in from one to

three lines on the alternate interstices and in single lines on the others; the prosternal

spines stouter in well-developed males. Narrower and more sparsely squamose than

G. metecus, the anterior tibie sharply unguiculate in the male. Three specimens from

Chiacam with darker legs and closer vestiture may also belong here. ‘The mandibles

are slightly decussate at the tip.

39. Gerzeus meteecus, sp. n.

_ Elliptic, nigro-piceous or piceous, the antenna, tibie, tarsi, and tip of the rostrum more or less ferruginous ;

thickly clothed with rather coarse, narrow, intermixed ochreous (or cinereous) and fuscous scales, the

light-coloured scales condensed into three broad faint vitte on the prothorax and various short streaks on

the elytra (especially at the base of the first and second interstices) ; the vestiture of the under surface

closer and whitish. Rostrum stout, half the length of the body, abruptly bowed from near the base,

thickly punctate and subcarinate in its basal half and more sparsely punctured thence to the tip. Pro-

thorax and elytra sculptured as in G. lentiginosus. Prosternum deeply sulcate in the ¢, shallowly so in

the 2, armed in the ¢ with two moderately long spines, which in one specimen are reduced to two

small conical tubercles. Anterior tibie obsoletely unguiculate in both sexes, not hollowed within

in the ¢.

Length 23-8, breadth 14-14 millim. (¢ 9.)

Hab. Mexico, Teapa (H. H. Smith) ; Guatemata, Cahabon (Champion), Trece Aguas

(U.S. Nat. Mus.); Nicaragua, Chontales (Janson).

Four males and five females. Very like @. lentiginosus, and likely to be confounded

with it, but separable by the very feebly unguiculate, non-emarginate anterior tibie of

the male, and the mottled elytral vestiture. The obsoletely unguiculate anterior tibie

also distinguishes G. metecus from other nearly allied forms. There is sometimes a

transverse dark mark at the middle of the suture, as in G. s¢mulator.

40. Gerzeus amplicollis, sp.n. (Tab. XV. figg. 13, 13.4, ¢.)

Subovate, rather convex, nigro-piceous, the elytra, rostrum, antenne, and legs fusco-castaneous ; above sparsely

clothed with minute, pallid, hair-like scales, the elytra with an oblong patch of coarser whitish scales at

the base of the third interstice, the under surface also sparsely albo-squamose. Head closely punctate ;

rostrum strongly arcuate, about as long as the head and prothorax, rather stout, thickened towards the

base, closely, coarsely punctate, the apical half almost smooth in the 9, the antenne inserted at about the

middle, the antennal club short-ovate, stout. Prothorax somewhat convex, strongly transverse, rounded

at the sides, narrow and tubulate in front; rather coarsely, densely punctate (the punctures not coarser

on the anterior lobe), and with indications of a raised median line. Scutellum transverse. Elytra sub-

triangular, transversely depressed on the disc beyond the middle, sharply striate, the interstices broad and

closely, coarsely punctate. Beneath closely punctate. Anterior tibie almost straight on their inner

edge.

GERAUS. 281

d. Prosternum armed with two short, stout, upwardly-curved spines, and with a circular cavity between

them ; first ventral segment broadly depressed down the middle.

Length 43-53, breadth 23-24 millim. (¢ 2.)

Hab. Mexico, Xucumanatlan in Guerrero, 7000 feet (H. H. Smith).

Two males and one female, all somewhat abraded. Larger and broader than

G. pugnax, the prothorax broader and more rounded at the sides, the rostrum a little

shorter and stouter, the puncturing of the upper and under surfaces not so coarse, that

of the elytral interstices less asperate, the vestiture coarser beneath and finer above,

the tibie more feebly unguiculate in the male. G. striatirostris, Lec., from Texas, is

also a nearly allied form.

41. Gerzeus coarctatus, sp.n. (Tab. XV. fig. 14, ¢.)

Oblong-ovate, rather broad, black, the tarsi paler; somewhat thickly clothed with short, fine, hair-like,

cinereous scales, the scales on the prothorax longer and transversely arranged, and those on the elytra

placed in from 2-4 rows down each interstice ; the vestiture of the under surface coarser and also cinereous.

Head finely punctate, transversely grooved between the eyes; rostrum stout, strongly arcuate, slightly

longer than the head and prothorax, very sparsely, finely punctate, the punctures becoming coarser and

more crowded at the sides towards the base, the antenne inserted at about the middle, the antennal club

short-ovate, stout. Prothorax broad, transverse, rounded at the sides, and strongly constricted in front;

densely, finely, confluently punctate, except along the narrow smooth median face, the short tubulate

anterior lobe coarsely and rugosely punctured. LElytra rather long, gradually narrowing from the base ;

shallowly and narrowly punctate-striate, the interstices broad, flat, and densely punctate. Beneath

densely punctate. Prosternum depressed down the middle anteriorly, the transverse subapical sulcus

deep. Legs rather short, the femora stout, clavate, the tibie strongly unguiculate.

Length 52, breadth 25 millim. (@.)

Hab. Mexico (Truqui, in Mus. Brit.).

Two females. Closely related to G. amplicoliis, and with the prothorax very similarly

shaped; but with the rostrum less thickened at the base, the elytra more oblong and

unimpressed, with the. strie conspicuously punctate, the prothorax more densely

and not so coarsely punctate (except along the smooth median line), its anterior lobe

subfoveolate, the vestiture fine and uniformly distributed. ‘The prosternum is probably

spined in the male.

42. Gerzeus duplaris, sp. n.

Oblong-rhomboidal, black ; somewhat thickly clothed with short, narrow, setiform, whitish scales, which are

arranged in a double series along each elytral interstice, the vestiture of the prothorax finer, hair-like,

and transversely arranged, that of the under surface rather coarse. Head finely punctate, transversely

grooved between the eyes ; rostrum a little longer than the head and prothorax, abruptly curved down-

ward from near the base, the basal portion thickened and rugosely punctate, the apical portion flattened

and almost smooth, the antennz inserted far behind the middle, the antennal club ovate. Prothorax

proader than long, narrowing from the base, slightly rounded at the sides anteriorly, constricted in front;

densely, finely, confluently punctate, the narrow interspaces raised into sinuous longitudinal ridges, the

disc with an incomplete raised median line. Elytra moderately long, gradually narrowed from the base,

punctate-striate, the interstices closely asperato-punctate. Beneath closely punctate. Prosternum rather

proadly sulcate down the middle anteriorly, Anterior coxe narrowly separated.

Length 42-44, breadth 24 millim,. (2.) .

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, Way 1908. 200

282 RHYNCHOPHORA.

Hab, Guaremata, San Gerénimo in Baja Vera Paz (Champion).

Two females. This insect is of about the same size and shape as the Mexican

G. iners, but the vestiture is much finer, the elytral interstices are flat and closely

punctate, &c. It is narrower than G. coarctatus, the prothorax is narrowed from the

base, and the elytral interstices are rugosely punctate, each with two lines of short, fine,

setiform scales. The prosternum is perhaps spined in the male.

43, Gerzeus albolineatus, sp.n. (Tab. XV. figg. 15,15 a, 3; 16,16 a, 2, var.)

Oblong-rhomboidal, very shining, black ; the prothorax with the outer margins and hind angles, the elytra with

various elongate streaks on the alternate interstices 2, 4, 6, 8 (sometimes extending down their entire

length) and a spot at the base of the third, and the under surface, densely clothed with coarse, oblong,

pure white scales, the legs and rostrum with finer white scales, the rest of the upper surface (a few

scattered scales excepted) in great part bare. Head finely punctate, transversely depressed between the

eyes; rostrum (¢') long, strongly arcuate, moderately stout, thickly punctate to the tip, (2) more

elongate, somewhat gibbous at the base, and with the apical two-thirds slender and almost smooth, the

antenne inserted at (¢) or behind (@) the middle, joint 2 of the funiculus a little longer than 3, the

club ovate. Prothorax transverse, narrowing from the base, strongly constricted in front; very finely

punctate, except along a narrow median space, the punctures confluent along the sides and on the flanks.

Scutellum small, transverse, bare. Elytra moderately long, narrowing from the base; narrowly and

sharply striate, the strie feebly punctate, the interstices broad and flat, the squamigerous spaces

punctulate. Beneath densely punctate.

Var, The white streaks on the elytra less elongate, and tending to form three interrupted fascizae—one at the

base, another beyond the middle, and a third at the apex; the white scales on the prothorax sometimes

extending across the base. (Fig. 16.)

$. Prosternum armed with two moderately long spines and with a deep fovea between them, or with two

tubercles and a shallow excavation ; first ventral segment depressed down the middle.

Length 34-44, breadth 13-22 millim. (¢ 2.)

Hab, Mexico (Truqut, in Mus, Brit.), Toxpam (Sallé: 3 2), Atoyac (H. H. Smith:

2 ), Oaxaca (Hoge: ¢); GuatEmALa, Capetillo (Champion: 3); Costa Rica, San José

(U.S. Nat. Mus.) ; Panama, Volcan de Chiriqui (Champion: @ ).

A variable insect. Of the fourteen specimens seen, nine are from Mexico (four

having the white lines continuous on the elytra); the others belong to the varietal

form, the male from Guatemala being a small narrow example with the prosternal

spines reduced to two tubercles.

44, Gereus x-notatum, sp.n. (Tab. XV. figg. 17, 17a, 2.)

Oblong-rhomboidal, narrow, shining, black, the antennal club and the tip of the rostrum ferruginous ; the

prothorax with a space along the sides, and the elytra with a transverse fascia at the base and a broader

oblique one beyond the middle, the two fasciz connected along the suture, somewhat thickly clothed

with narrow white scales ; the under surface, the basal portion of the rostrum, and the legs also clothed

with small white scales, these becoming coarser and denser on the prosternum and on the meso- and

metasternal side-pieces. Head finely punctate, transversely depressed between the eyes; rostrum long,

abruptly bent downward near the base, the basal portion stout, somewhat gibbous, and thickly punctate

at the sides, the apical portion feebly curved, flattened, rather slender, and almost smooth, the antennez

inserted behind the middle, joint 2 of the funiculus twice as long as 3, the club short-ovate. Prothorax

transverse, subconical, constricted in front; closely punctate, except along the middle, the punctures

coniluent at the sides, Scutellum transverse. Elytra subtriangular, deeply striate, the strie feebly

GERZUS. 983

punctate, the interstices flat and with the squamigerous spaces finely punctate. Beneath densely, finely

punctate. Prosternum foveate behind the transverse subapical groove. Legs rather long and slender.

Length 2,%,-3,, breadth 11-14 millim. (9.)

Hab. Mexico, Chilpancingo and Amula in Guerrero 4600-6000 feet (H. H. Smith).

Two females. Smaller than the same sex of G. albolineatus, the white scales on

the elytra clustered into a common X%-shaped mark, the vestiture of the metasternum

and abdomen finer, the apical portion of the rostrum flattened and less curved, the

second joint of the funiculus more elongate. There are a few scattered white scales

on the elytra beyond the post-median fascia.

45. Gereeus tumidirostris, sp.n. (Tab. XV. figg. 18, 184, 3.)

Oblong-rhomboidal, black, shining; the elytra with a line of scattered, oblong, white scales along each

interstice (becoming double at the base and often in part abraded), the prothorax with a few hair-like

smaller scales ; the under surface thickly, the legs more sparsely, albo-squamose. Head closely punctate,

transversely depressed between the narrowly-separated eyes; rostrum long, curved, thickened and

abruptly bent downward near the base (appearing gibbous when viewed in profile), coarsely punctate in

the 3, the long apical portion flattened, more slender and almost smooth in the 9, the antennse inserted

at (2) or a little beyond (¢) the middle, joints 1 and 2 of the funiculus elongate, 2 shorter than 1, the

club ovate. Prothorax nearly as long as broad, narrow, conical, feebly constricted in front; densely,

rather coarsely punctate, smooth along the median line. Elytra triangular, long, much wider than the

prothorax, transversely depressed on the disc beyond the middle and also below the base, the suture also

depressed anteriorly; deeply punctate-striate, the interstices almost flat and irregularly uniseriate-

punctate. Beneath densely punctate. Prosternum narrowly sulcate. Anterior coxse narrowly separated.

Legs rather elongate.

¢. Prosternum armed with two moderately long porrect spines; first ventral segment slightly depressed

down the middle.

Length 44-53, breadth 24-25 millim. (¢ 9.)

Hab. Guatemata, Sinanja and Sabo in Alta Vera Paz, Atlantic slope (Champion).

Found in numbers at Sinanja. A peculiar form, with the upper surface shining,

the under surface densely albo-squamose, the prothorax almost bare and conical, the

elytra long, triangular, and clothed with scattered white scales, the rostrum thickened

and gibbous at the base in both sexes.

46, Gereeus scabripennis, sp. n.

Oblong-rhomboidal, black, the prothorax shining, the rest of the surface duller; above very sparsely (elytra

abraded), beneath thickly, clothed with white scales. Head closely punctate ; rostrum moderately long,

slightly thickened towards the base, regularly arcuate throughout, coarsely punctate, smoother and

widened at the tip, the antenne inserted at a little beyond the middle, the antennal club stout, oblong-

ovate. Prothorax broader than long, conical, constricted in front; densely, finely, shallowly punctate,

smoother and flattened on the disc towards the base, and with indications of a raised median line.

Elytra triangular, long, much wider than the prothorax ; finely punctate-striate, the interstices flat and

Beneath densely punctate. Prosternum narrowly suleate, armed with two very long

densely rugulose. . t

1 segment broadly depressed down the middle. Third tarsal joint large.

porrect spines. First ventra

Length 5, breadth 23 millim. (d.)

Hab. Mexico, Guanajuato (Sadlé). }

2002

284 RHYNCHOPHORA.

One male, with the elytra much abraded. This is the Mexican representative of

the Guatemalan G. twmidirostris, differing from that insect in the regularly arcuate,

non-tumid rostrum, the finely striate, unimpressed elytra, with densely rugulose

interstices, the larger third tarsal joint, and the longer prosternal spines of the male.

The conical, narrow prothorax, narrow prosternal sulcus, &c., separate G. scabripennis

from worn G. senilis and allied forms.

47. Gereus gentilis, sp.n. (Tab. XV. figg. 19,194, 3.)

Rhomboidal, narrow, shining, nigro-piceous, the antennw, tip of the rostrum, prosternal spines, tibie, and

tarsi more or less ferruginous ; very sparsely clothed with whitish, setiform scales, those on the elytra

regularly arranged in a single row along each interstice, the metathoracic episterna closely albo-squamose.

Head closely punctate, transversely grooved between the eyes; rostrum strongly arcuate, stout, as long

as the elytra, seriate-punctate and feebly carinate, the antenne inserted at the middle, the antennal club

ovate. Prothorax a little broader than long, conical; sparsely, obsoletely punctate on the disc, the

punctuation becoming coarser and confluent at the sides. Scutellum subquadrate, narrow. LElytra

triangular, deeply punctate-striate, the interstices narrow and uniseriate-punctate. Beneath closely

punctate. Prosternum narrowly sulcate and armed with two long, slender, compressed spines. First

ventral segment depressed down the middle. Anterior cox very narrowly separated. Legs rather long

and slender ; anterior tibia strongly, the other tibiee more feebly, unguiculate.

Length 24, breadth 1} millim. (¢.)

Hab. Panama, Bugaba (Champion).

One male. A small species, rhomboidal in form, with a conical prothorax, which

is almost smooth along the middle of the disc, a strongly arcuate, stout rostrum, and

a single regular line of whitish setiform scales down each elytral interstice, the pro-

sternum armed with two long, narrowly separated spines, and the legs comparatively

long and slender. G. gentilis has somewhat the facies of the N.-American Centrinus

capillatus, Lec.

48. Gerzus sculpticollis, sp.n. (Tab. XV. figg. 20, 20a, ¢.)

Oblong-subrhomboidal, shining, black ; the upper surface set with a few scattered, coarse, oblong white scales

intermixed on the elytra with fine, hair-like, fuscous scales, the larger scales condensed into small spots

at the base and apex of the prothorax, and at the base of the elytra and also along their third interstice

towards the tip; the under surface thickly, the legs more sparsely, albo-squamose, the tibise hairy within.

Head finely punctate, transversely grooved between the eyes; rostrum strongly arcuate, rather stout,

about as long as the elytra, thickened towards the base, coarsely punctate, the antenne inserted at the

middle, the antennal club ovate. Prothorax broader than long, abruptly constricted and narrow in front,

the sides rounded from near the base; rather coarsely, confluently punctate, the narrow interspaces

raised into sinuous longitudinal ridges, and with a smooth raised median line. Elytra long, triangular,

depressed along the suture; deeply punctate-striate, the interstices flat and irregularly biseriate-punctate.

Beneath densely punctate. Prosternum sulcate and armed with two moderately long, slightly curved,

downwardly-directed spines. First ventral segment broadly depressed down the middle, Anterior coxe

narrowly separated. Legs rather elongate, the anterior pair especially ; anterior tibis curved, strongly

unguiculate at the apex.

Length 43-5, breadth 25-23 millim. (¢.)

Hab. Mexico, Amula in Guerrero 6000 feet (H. Z. Smith).

GERAUS. 385

Two males, varying in the curvature of the prosternal spines. An isolated form,

distinguished by the shining, very sparsely squamose upper surface (the larger pure

white scales being scattered along the elytral interstices and clustered into small spots

at their base and apex), the albo-squamose under surface, the rugose, tubulate pro-

thorax, the long, triangular elytra, &c.

49, Gerzeus curvispinis, sp.n. (Tab. XV. figg. 21, 21a, ¢.)

Subrhomboidal, rather dull, the elytra shining, black, the antenne obscure ferruginous; the vestiture very

sparse, fine, and whitish, a little closer on the under surface and legs and arranged in lines on the elytra.

Head finely punctate, with a deep transverse groove between the eyes ; rostrum strongly and abruptly

arcuate from the base, nearly as long as the elytra, moderately stout, sparsely, coarsely punctate, the

antenne inserted ata little beyond the middle, the antennal club ovate. Prothorax slightly broader

than long, abruptly narrowed and tubulate in front, the sides rounded anteriorly and gradually converging

from the base; densely punctate, the narrow interspaces raised into long oblique ridges, the dise with a

distinct median carina. Elytra triangular, depressed along the suture anteriorly; sharply punctate-

striate, the interstices flat and asperato-punctate. Beneath densely punctate, the propleura coarsely

strigose. Prosternum deeply excavate and armed with two moderately long spines, which are directed

downward at the base and abruptly curved upward towards the tip. First ventral segment broadly

depressed down the middle. Legs rather elongate.

Length 44, breadth 2 millim. (d.)

Hab. Mexico, Cordova (Sallé).

One male, rather worn. This insect has the prothorax sculptured as in various

species of Rhyssomatus, the prosternal spines directed downward at the base and

curved upward from about the middle, and the rostrum long and abruptly arcuate

from the base. G. curvispinis is nearly related to G. sculpticollis, differing from it in

the sculpture of the prothorax (the oblique ruge being much more extended), the

more curved, smoother, and shorter rostrum, the deeply excavate prosternum, the less

elongate form, finer and sparser vestiture, &c.

50. Gerzeus tenebricosus, sp. n. (Tab. XV. figg. 22, 22a, ¢.)

Broad, subrhomboidal, opaque, black, the entire surface very densely punctate, the punctures on the elytra

transversely confluent and set with minute, narrow, decumbent, fuscous scales. Rostrum a little longer

than the head and prothorax, stout, the apical half flattened and more slender, coarsely striate-punctate,

the antennew inserted at about the middle, the antennal club ovate. Prothorax transverse, rounded at

the sides, constricted and much narrowed in front, with indications of a smooth median line. LElytra

triangular, narrowly punctate-striate, the interstices broad and flat. Prosternum flattened down the

middle, armed with two conical tubercles. First ventral segment broadly excavate in the middle

posteriorly, the suture between it and the second segment strongly sinuate. Anterior cox separated by

a little less than, the intermediate pair by about twice, their own width. Legs rather short; tibie broad,

strongly unguiculate, the anterior pair sinuous within.

Length 52, breadth 3} millim. (d.)

Hab. Mexico, Tasco in Guerrero (ex coll. Flohr).

One male. Larger and broader than G. pugnar (Boh.), densely and rugulosely

punctate above and beneath, opaque, the fuscous vestiture so fine as to be scarcely

visible at first sight, the prosternum not excavate and armed with two conical tubercles,

286 RHYNCHOPHORA.

the anterior tibie broad and sinuous within; on the under surface a few narrow scales

are to be seen. G. tenebricosus also resembles Prionobaris asper, but it is much larger,

the tibiz are not serrate, &c.

51. Gereus pugnax. (Tab. XV. figg. 23, 23a, ¢.)

2. Centrinus pugnax, Boh. in Schonh. Gen. Cure. vii. 1, p. 214°.

3g. Prosternum armed with two short upwardly-curved spines, and with a deep heart-shaped excavation

extending forward to the subapical constriction ; first ventral segment flattened down the middle.

©. Prosternum with a smooth, deep, transverse fovea in the subapical groove.

- Hab. Mexico (Truqui, in Mus. Brit.), 1Tultepec [Toulepec*] (coll. Chevrolat),

Orizaba (Ff. D. Godman), Toxpam, Capulalpam (Sal/é), Cordova, Jalapa (Hége), Venta

de Zopilote (H. H. Smith), Cuernavaca (U.S. Nat. Mus.), Temax in N. Yucatan

(Gaumer); GuatemaLa, Cerro Zunil, Calderas, Capetillo, San Gerédnimo, Sabo

(Champion) ; Sauvapor (U.S. Nat. Mus.).

We have received numerous specimens of this species, agreeing with the type

communicated by Dr. Sjdstedt. A rhomboid-ovate, rugosely punctate form, with

rather close, decumbent, hair-like, brownish vestiture, the elytra sometimes with a few

whitish, setiform scales on the disc towards the apex, the punctures on the prothorax

coarse, rounded, and separate one from another, the elytral strize and interstices

coarsely punctate, the tibiz strongly unguiculate in both sexes.

52. Gereeus basinotatus, sp.n. (Tab. XV. figg. 24, 24a, ¢.)

Subrhomboidal, shining, black ; the prothorax with a few transversely-arranged, long, narrow, white scales ;

the elytra with a dense, oblong, subtriangular patch of coarse white or ochreous scales on each side of the

scutellum at the base, and a line of narrow fuscous scales, intermixed with larger white ones, down each

interstice ; the under surface thickly clothed with coarse white or pale ochreous scales, the vestiture of

the legs finer and wholly white. Head finely punctate, transversely grooved between the eyes; rostrum

stout, strongly arcuate, a little shorter than the elytra, broadly sulcate at the sides in its basal half, and

somewhat coarsely punctate, in the 9 much smoother, more tapering, and abruptly bent inward from

near the base, the antenne inserted at about the middle, the antennal club ovate. Prothorax transverse,

constricted and much narrowed in front, the sides arcuately converging from the base } very coarsely,

densely punctate, except along the smooth median line. Elytra subtriangular, depressed along the

suture; deeply punctate-striate, the interstices roughly asperato-punctate. Beneath densely punctate,

except along the middle of the ventral segments 3 and 4.

3. Prosternum armed with two short spines, and with a deep median sulcus; first ventral segment broadly

depressed down the middle.

Length 33-4, breadth 13-2 millim. (¢ 9.)

Hab. Mexico, Chilpancingo (Hoge, H. H. Smith), Amula (H. H. Smith).

Two males and one female, all from the mountains of Guerrero, This is the only

Mexican species known to me with a dense subtriangular patch of coarse white or

ochreous scales on the inner part of each elytron at the base. Compared with the

allied G. pugnax, the prothorax is more coarsely punctured and the elytral interstices

are rougher. The rostrum is broadly and shallowly sulcate at the sides towards the

base (appearing compressed), and abruptly bowed inwards and tapering in the female,

GERZAUS. 287

53. Gerzeus submaculatus, sp. n. (Tab. XV. figg. 25, 25a, 3.)

Elliptic, rather convex, shining, black, the rostrum in great part, the antenne, and legs more or less

ferruginous or reddish; rather sparsely clothed with narrow whitish and fuscous scales—the whitish

scales on the prothorax condensed into a short streak along the middle at the base and a curved

submarginal band, and those on the elytra into a triangular scutellar patch and a transverse patch on

the disc a little beyond the middle,—which are transversely arranged on the prothorax and clustered

into two rows along each elytral interstice ; the vestiture of the under surface closer and wholly whitish.

_ Head finely punctate, transversely depressed between the eyes; mandibles more or less toothed at the

base beneath; rostrum a little longer than the head and prothorax, abruptly curved downward from

near the base, the basal portion closely punctate at the sides and much thickened, the other portion

almost smooth, the antenne inserted at (¢) or slightly behind ( 2 ) the middle, the antennal club ovate.

Prothorax transverse, rounded at the sides anteriorly, constricted and much narrowed in front; closely

punctate, except along a narrow smooth median space. Elytra subtriangular; narrowly punctate-

striate, the interstices somewhat roughly punctate. Beneath closely punctate. Tibize strongly unguiculate,

$. Prosternum armed with two short, slender, porrect spines, and slightly depressed down the middle.

Length 23-4, breadth 13-21, millim. (d 2.)

Hab. Mexico, Temax in N. Yucatan (Gaumer); GuaTEMALA, San Gerénimo

(Champion).

Sent us in abundance from Yucatan. A pair only obtained in Guatemala. This

species varies greatly in the colour of the vestiture of the upper surface, according to

the predominance of the fuscous or the whitish scales on the elytra, but the markings

are always visible. The legs are constantly reddish. The prosternal spines are short,

slender, and porrect ; the rostrum is much thickened at the base; and the mandibles

are hollowed on their lower outer edge.

54. Gerseus furcifer, sp.n. (Tab. XV. fig. 26, ¢ .)

Subrhomboidal, narrow, nigro-piceous, the antenne and legs fusco-ferruginous ; clothed with small, scattered,

narrow, setiform, intermixed whitish and ochreous scales, those on the elytra arranged in a single series

down each interstice; the vestiture of the under surface closer and wholly whitish. Head closely

punctate, obsoletely foveate between the eyes ; rostrum strongly arcuate, about as long as the head and

prothorax, moderately stout throughout, striato-punctate, smoother in the 9, the antenne inserted at a

little beyond the middle in both sexes, the antennal club ovate. Prothorax short, gradually and

arcuately narrowing from the base, constricted in front; densely, confluently punctate, and with indica-

tions of a raised median line. Elytra subtriangular, shining, sharply punctate-striate, the interstices flat

and irregularly uniseriate-punctate. Beneath closely punctate. Anterior coxe narrowly separated.

3. Prosternum armed with two broad, flattened, bifurcate processes (the upper lobe long and arcuate, the

lower one obtuse), and with a very deep excavation between them ; first ventral segment deeply excavate,

and the fifth slightly depressed, in the middle ; anterior tibiz strongly unguiculate.

Q. Prosternum simply sulcate.

Length 23-3, breadth 11-13 millim. (¢ 2.)

Hab. Guatemata, Calderas, on the slope of the Volcan de Fuego, 7000 feet

(Champion).

Two males and five females, all more or less abraded. The lamelliform, bifurcate

prosternal processes readily distinguish G. furcifer from all its allies. A female from

Guatemala city may also belong to it.

288 RHYNCHOPHORA.

55. Gergzeus pexus. (Tab. XV. figg. 27, 27a, 3.)

9. Centrinus pexus, Boh. in Schénh. Gen. Cure. viii. 1, p. 209°.

g. Prosternum armed with two stout, upturned, short or moderately long, connate, granulate spines. Rostrum

multicarinate to the tip, the compressed basal portion rugosely punctate as in the 2. First ventral

segment flattened down the middle.

Hab. Mxxico! (Mus. Brit.), Tonilain Colima (Hége); GuaTemata, Aceytuno (Salvin),

San Gerénimo and Sinanja in Vera Paz (Champion); Nicaragua, Managua (Solar?).

I have seen ten specimens of this species, including the (2?) type. The densely

squamose surface, the comparatively stout, strongly arcuate, compressed, rugose, carinate

rostrum, and the completely connate prosternal spines of the male (which, at most,

are less than half the length of the rostrum), readily distinguish G. perus. The

prosternum is shallowly sulcate down the middle. ‘The antennal club is ovate and

rather small. The mandibles are toothed on the under side at the base externally.

56. Gereeus unicornis, sp.n. (Tab. XV. figg. 28, 28a, 3.)

Rhomboidal, narrow, shining, nigro-piceous, the antenne, rostrum, and legs (and in one specimen the prosternal

spine also) more or less ferruginous; somewhat thickly clothed with small whitish and pale brown

scales, which are clustered into one, two, or three lines along each elytral interstice, the whitish scales

condensed into three narrow vitte on the prothorax, a streak down the basal half of the interstices 2

and 6, another on 4 beyond the middle, and a shorter one at the apex of 2; the vestiture of the under

surface wholly whitish. Head closely punctate; rostrum strongly arcuate, considerably longer than the

head and prothorax, slender, slightly thickened at the base and flattened at the tip, finely striate-punctate

in its basal half, smoother in the 9, the antenne inserted at the middle, the antennal club oblong-ovate.

Prothorax transverse, conical, constricted in front; finely, confluently punctate, the narrow interspaces

raised into longitudinal ruge. Elytra triangular, sharply striate, the interstices flat and closely

punctulate. Beneath closely punctate. Prosternum unimpressed behind the transverse subapical groove.

Anterior coxe separated by less than half their own width. Legs rather long and slender.

¢. Prosternum armed with a long porrect spine ; first ventral segment slightly depressed down the middle.

Length 3-31, breadth 12-1} millim. (¢ 2.)

Hab. Guatemata, Purula (Champion) and Coban (Conradt) in Alta Vera Paz.

A pair, worn, from Purula, and a male, in fresh condition, from Coban. The slender

prosternal spines in this species are completely fused, as in G@. pexus (Boh.), though

the two insects are not otherwise very nearly related. The conical, trivittate prothorax

and the interruptedly albo-lineate elytra are also characteristic.

57. Gerzeus tuberculifer, sp.n. (Tab. XV. figg. 29, 29a, 3.)

Rhomboidal, narrow, black, the antenne, apical half of the rostrum, tibiee, and tarsi more or less ferruginous,

the femora also sometimes reddish ; densely clothed with brown and whitish scales (those on the elytra

rather broad), the latter in great part condensed into a median vitta on the prothorax, which extends

backward over the scutellum to about the median third of the suture, and a large apical patch on the

elytra; the under surface densely albo-squamose. Head densely punctate; rostrum arcuate, stout,

becoming more slender towards the tip, distinctly longer than the head and prothorax, closely punctate,

the apical half in the @ flattened and much smoother, the antenne in the ¢ inserted at a little beyond,

and in the 9 slightly behind, the middle, the antennal club ovate. Prothorax transverse, conical, feebly

constricted in front ; densely, finely punctate, with an abbreviated smooth median line. Elytra rather

GERAUS. 289

long, triangular, flattened and transversely depressed on the anterior part of the disc, the subapical

callosities prominent; finely punctate-striate, the interstices densely punctulate. Beneath densely

punctate ; first ventral segment broadly depressed down the middle in the g. Prosternum in both sexes

shallowly sulcate, the sulcus limited on each side anteriorly by a compressed tubercle. Anterior coxte

narrowly separated. Legs rather slender; anterior tibie in the ¢ strongly, and in the 2 feebly,

unguiculate.

Length 33-32, breadth 13-1? millim. (¢ 2.)

Had. Guatemaua, Calderas 7000 feet, on the slope of the Volcan de Fuego

(Champion).

Three males and one female, two of them in bad condition. Not unlike the Mexican

G. bifurcatus, but with the vestiture of the elytra differently coloured, the scales on

the short white sutural stripe imbricate, the densely squamose prosternum shallowly

sulcate and bituberculate just behind the apical constriction. The tubercles are

placed further from the anterior coxe than in the males of the other Centrinides with

tuberculate or spined prosternum, and are present in both sexes.

58. Gereus puncticollis. (Tab. XV. figg. 30, 30a, ¢.)

3. Centrinus puncticollis, Boh. in Schénh. Gen. Cure. viii. 1, p. 200°.

¢. Broad-ovate, robust, black, almost glabrous above and sparsely albo-squamose beneath. Head closely

punctate; rostrum stout, arcuate, of equal thickness throughout, about as long as the head and prothorax,

coarsely, closely punctate, and clothed with several bristly hairs at the tip beneath, the antenne inserted

behind the middle; mandibles toothed at the base beneath, straight on their inner edge. Prothorax

transversely convex, strongly rounded at the sides, narrow and abruptly tubulate in front, deeply sinuate

at the base; coarsely, closely punctate, except along the smooth median line. Scutellum smooth,

concave. Elytra broad, subtriangular, comparatively short, transversely depressed below the base and

beyond the middle, and flattened along the suture; sharply striate, the interstices somewhat closely

punctate. Prosternum narrowly and shallowly sulcate anteriorly, slightly tumid in front of each

anterior coxa, the intervening space flattened. Anterior coxe separated by a little more than their

own width. Legs short and stout, rugosely punctured. Tibiew widened at the apex externally, the

anterior pair closely ciliate within. Tarsi with joint 2 transverse, the claws free.

Length 51, breadth 3 millim.

Hab. Mexico, Alvarado in Vera Cruz (coll. Chevrolat *).

The unique type of this aberrant species has been communicated by Dr. Sjostedt.

The feeble prosternal prominences are due to the intervening space being broadly

flattened. |

59. Gereeus scutatus, sp. n. (Tab. XV. figg. 31, 31a, ¢.)

Oblong-subrhomboidal, rather narrow, shining, black; the upper surface with scattered, narrow, white scales

along each elytral interstice and at the sides of the prothorax, the scutellum with a dense transverse

‘patch of similar scales; the under surface and legs somewhat thickly albo-squamose. Head closely

punctate; rostrum strongly arcuate, about as long as the head and prothorax, rather stout, thickened

towards the base, coarsely striate-punctate in the ¢, flattened towards the tip and minutely punctate

from near the base in the 2, the antenne inserted slightly behind (@) or a little beyond ( ¢ ) the

middle, joints 4-7 of the funiculus strongly transverse in the d, the club elongated and nearly as long

as the funiculus in the ¢, ovate in the 9. Prothorax broader than long, constricted and much

narrowed in front, the sides rounded anteriorly; closely, coarsely punctate, except along a narrow,

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1908. 2 Ppp

290 RHYNCHOPHORA.

smooth, median space. Scutellum transverse. Elytra gradually narrowing from the base, depressed

along the suture, the humeri rather prominent ; deeply punctate-striate, the interstices asperato-punctate.

Beneath densely punctate. Prosternum unimpressed behind the transverse subapical groove. First

ventral segment flattened down the middle in the g. Tibiw unguiculate in the ¢, obsoletely so in

the @.

Length 3-42, breadth 13-25 millim. (¢ 9.)

Hab. Muxico, Oaxaca (Hoge), Chiapas (Sallé); Guaremata, Zapote, Calderas,

Duefas, Purula (Champion).

Found in numbers on the slope of the Volcan de Fuego, at Calderas, females

preponderating, the single specimen of this sex from Zapote being smaller and less

elongate than the others. The transverse cluster of pure white scales on the scutellum,

the line of scattered similar scales along each elytral interstice (often in part abraded),

the shining surface, depressed elytral suture, and the elongated antennal club of the

male, distinguish G. scutatus. The present species is very like Odontocorynus

creperus.

60. Gerzeus aspersus, sp. n. (Tab. XV. figg. 32, 32a, ¢.)

Subelliptic, shining, black, the antenne fusco-ferruginous ; the sides, hind angles, and median lobe of the

prothorax, and the elytral interstices, with scattered pure white scales, the scutellum with a dense

oblong cluster of similar scales; the under surface thickly albo-squamose, the vestiture of the legs

finer and also white. Head closely punctate, foveate between the eyes; rostrum strongly arcuate,

about as long as the head and prothorax, rather stout, striate-punctate, the antenne inserted at

the middle, the antennal club elongate, as long as or a little longer than the funiculus. Prothorax

broader than long, rounded at the sides anteriorly, constricted and much narrowed in front; closely,

coarsely punctate (the punctures separate one from another), except along the smooth median line.

Scutellum subquadrate. Elytra subtriangular, depressed along the suture, blunt at the tip; deeply

punctate-striate, the interstices roughly asperato-punctate. Beneath densely punctate. Prosternum

unimpressed behind the transverse subapical groove, unarmed. First ventral segment unimpressed.

Length 3-4, breadth 14-2,4, millim. (<¢.)

Hab. Mexico (coll. Solart), Toxpam and San Andres Tuxtla in Vera Cruz (Sallé).

Four males. Very like G. scutatus, but with the general outline more elliptic,

due to the prothorax and elytra being a little more rounded at the sides and the

humeri less prominent.

61. Gerzeus longiclava, sp. n. (Tab. XV. figg. 33, 33a, 3.)

Subrhomboidal, nigro-piceous, the rostrum, antenne, and legs obscure ferruginous ; the prothorax (except

along the two bare spaces on the disc) and the base of each elytral interstice clothed with long, narrow

ochraceous scales, those on the prothorax transversely arranged, the prothorax also with a whiten

median line, which is continued on to the scutellum and along the suture of the elytra, the rest of the

elytral interstices each with two lines of narrow blackish-brown scales; the vestiture of the under

surface rather coarse, dense, and whitish, that of the legs also white. Head finely punctate, foveate

between the eyes; rostrum arcuate, nearly as long as the elytra, thickened towards the base, striate and

sparsely, finely punctate, the antenne inserted at a little behind the middle, joints 3-7 of the funiculus

strongly transverse and closely articulated, the club nearly twice as long as the funiculus, its joint 2 much

longer than 1. Prothorax transverse, gradually narrowing from the base, narrowed and constricted in

GERAUS. 291

front; densely punctate. Elytra subtriangular, punctate-striate, the interstices closely asperato-punctate.

Beneath densely punctate. Prosternum slightly depressed down the middle. Anterior tibie feebly

unguiculate.

Length 3, breadth 13 millim. (¢.)

Hab. Panama, Bugaba (Champion).

Two specimens. The greatly elongated, distinctly articulated antennal club (with

long second joint), the short, closely-articulated funiculus, the broadly trivittate pro-

thorax, and the albo-squamose scutellum and suture chiefly distinguish G. longiclava.

This species and the following one are related to G. scutatus and G. aspersus.

62. Gerseus tenuiclava, sp.n. (Tab. XV. figg. 34, 34a, 3.)

Subrhomboidal, nigro-piceous or black, the legs, rostrum, and antenne fusco-ferruginous ; the prothorax with

one or three lines of transversely-arranged, narrow, ochraceous or whitish scales, the median line

extending on to the scutellum and sometimes reaching the middle of the suture, the third, fifth, and

other interstices often with a short line of similar scales at the base, and the suture with a few others at

the tip, the rest of the elytral interstices each with two lines of narrow blackish-brown scales; the

vestiture of the under surface rather coarse, dense, and yellowish-white. Head finely punctate, foveate

between the eyes ; rostrum arcuate, nearly as long as the elytra, striate and finely punctate, the antennz

inserted at about the middle, the antennal club distinctly articulated and nearly as long as the funiculus,

joints 3-7 of the latter transverse. Prothorax densely punctate. LElytra subtriangular, deeply striate,

the interstices closely asperato-punctate. Prosternum slightly depressed down the middle, with a smooth

transverse fovea in front, and the transverse subapical groove deeply impressed on each side behind the

eyes. First ventral segment shallowly sulcate. Anterior tibie strongly unguiculate.

Length 31-33, breadth 13-1, millim. (¢.)

~ Hab. Guatemata, Cahabon, Chiacam, Sinanja (Champion), Coban (Conradt).

Five males, all from Alta Vera Paz. The less elongate antennal club (with

shorter second joint), the longer funiculus, the narrowly vittate prothorax, the trans-

versely foveate prosternum, and the sharply unguiculate tibize separate @. tenuiclava

from G. longiclava, which it otherwise closely resembles. In some specimens the

scutellum and a median line on the prothorax are whitish, and the rest of the vestiture

of the upper surface is blackish-brown.

63. Gerzeus albiventris, sp. n.

Oblong-subrhomboidal, black, the antennz and anterior tarsi sometimes ferruginous at the base; above

sparsely clothed with small, narrow, whitish or yellowish-white scales, which on the elytra are arranged

in a single or double row down each interstice, the median lobe of the prothorax and the scutellum

sometimes with a patch of scales, the under surface densely clothed with larger pure white scales.

Head closely punctate; rostrum arcuate, about as long as the head and prothorax, stout, coarsely

punctate and finely carinate, much smoother in the 2, the antenne inserted at ( Q ) or a little beyond(d )

the middle, the antennal club stout and acuminate-ovate in the ¢, smaller and ovate in the 9.

Prothorax transverse, more or less constricted in front, the sides slightly rounded from near the base ;

rather coarsely, confluently punctate. Elytra subtriangular, separately rounded at the apex, leaving

the apex of the last dorsal segment exposed; narrowly striate, the interstices asperato-punctate.

Beneath densely punctate. Prosternum unimpressed behind the transverse subapical groove. Anterior

tibiee feebly unguiculate, and joints 2 and 3 of the anterior tarsi more or less dilated, in the ¢.

Length 32-4, breadth 13-2 millim. (3 2:)

2PP2

292 RHYNCHOPHORA.

Hab. GuateMa.a, Capetillo and Calderas on the slopes‘of the Volcan de Fuego

(Champion).

Three males and one female, two of them with the vestiture (? abraded) almost

wanting on the scutellum. This insect is not unlike the N.-American Centrinus

scutellum-album, Say, and C. salebrosus, Casey, and the Mexican C. larvatus, Boh.

(here referred to Odontocorynus), but it differs from all of them in the sparse, fine

vestiture of the upper surface (a character also separating G. albiventris from

G. tectus), the under surface being densely clothed with rather large white scales ; the

male, moreover, has the anterior tarsi dilated and the antennal club simply acuminate.

The tip of the last dorsal segment is exposed, owing to the elytra being separately

rounded at the apex.

64. Gerzeus tectus, sp.n. (Tab. XVI. figg. 1, la, 2.)

Subrhomboidal, broad, flattened above, black, the tarsi obscure ferruginous ; densely albo-squamose beneath,

the upper surface (the base of the rostrum included) thickly clothed with rather coarse, narrow, yellowish-

white scales, the scales on the prothorax long and transversely arranged, condensed into a small patch in

front of the scutellum, those on the elytra arranged in a close double or treble series down each

interstice, the first with one row only beyond the middle. Head closely punctate; rostrum curved

downward from the base, a little longer than the head and prothorax, rather stout, the basal portion thickly

punctate and finely carinate, the apical two-thirds much smoother, the antenne inserted at the middle, the

antennal club short-ovate, stout. Prothorax transverse, rounded at the sides from near the base, much

narrowed and feebly constricted in front; densely, rugulosely punctate. Scutellum depressed, transverse,

almost bare. LElytra subtriangular, separately rounded at the tip, leaving the apex of the last dorsal

segment exposed ; narrowly punctate-striate, the interstices densely asperato-punctate. Beneath densely,

finely punctate, the sculpture hidden by the broad scales. Prosternum slightly depressed down the

middle. Anterior coxe separated by about half their own width.

Length 43, breadth 23 millim. (9.)

Hab. Mexico, Oaxaca (Hége).

One female. Very like Odontocorynus larvatus(Boh.)( 2 ), but with the scales on the

upper surface much longer and less crowded, and condensed into a small, transverse,

projecting patch on the median lobe of the prothorax (instead of on the scutellum),

the prothorax without trace of a smooth median space, the rostrum less curved. The

vestiture of the upper surface is longer and much coarser than in the N.-American

C. (Odontocorynus) scutellum-album, Say *, and C. salebrosus, Casey, and the scutellum

wants the white patch.

65. Gereeus viridicans, sp. n. (Tab. XVI. figg. 2, 2a,b, 3.)

Rhomboidal, narrow, shining, greenish-zeneous, the antenne fusco-ferruginous, the tip of the rostrum and the

legs ferruginous; rather sparsely clothed with small, narrow, ochreous and whitish scales, which are

arranged in a single or double line down each elytral interstice, the vestiture of the under surface close

and whitish. Head finely punctate, transversely grooved between the eyes ; rostrum rather stout,

arcuate, longer than the head and prothorax, sparsely punctate, the antenns (fig. 26) inserted at about

* Also recorded from Brazil by Casey, but we have not received it from within our limits.

GERAUS. 293

the middle, the antennal club large, short-ovate, the sutures very distinct. Prothorax transverse,

narrow, conical, strongly constricted in front; densely, finely punctate, the narrow interspaces longitudinally

raised. Elytra rather long, subtriangular, transversely depressed on the disc below the base ; finely and

sharply punctate-striate, the interstices irregularly uniseriate-punctate. Beneath closely, finely punctate ;

first ventral segment depressed down the middle. Prosternum unimpressed behind the deep transverse

subapical groove. Anterior coxe narrowly separated. Legs rather long and slender, the tibie narrow

and with the apical uncus slender.

Length 22, breadth 14 millim. (<¢.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

One male. A small narrow form, with greenish-eneous elytra, a large, somewhat

rounded antennal club, and slender ferruginous legs, the elytral vestiture fine and

arranged in a single line (which is doubled here and there) along each interstice.

66. Gerzeus scitus, sp.n. (G. scitulus, Tab. XVI. figg. 3, 3a, 2.)

Oblong-rhomboidal, shining, eneous, the legs, antenn, and tip of the rostrum ferruginous ; somewhat thickly

clothed with intermixed narrow ochreous and coarser white scales, which are arranged in about two

rows down each elytral interstice ; the vestiture of the under surface wholly white, that of the legs fine

and hair-like. Head finely punctate, transversely grooved between the eyes; rostrum strongly arcuate

at the base, a little longer than the head and prothorax, moderately stout, flattened at the tip, sparsely,

finely punctate, the antenne inserted behind the middle, the outer joints of the funiculus narrow and

transverse, the club stout, short-ovate. Prothorax subconical, transverse, strongly constricted in front ;

longitudinally wrinkled and finely punctate. Elytra subtriangular, rather long, depressed along the

suture at the base; finely and sharply punctate-striate, the interstices sparsely punctate. Beneath

closely punctate. Prosternum transversely excavate anteriorly. Legs rather long and slender ; tibiz

feebly unguiculate.

Length 34, breadth 12 millim. ( 2.)

Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith).

One specimen. Closely related to G. viridicans, and perhaps the female of that

species, but differing from it in the coarser vestiture of the upper surface. The

elytra with numerous intermixed larger white scales, the prothoracic ruge more

conspicuous. ‘The mandibles are hollowed at the sides beneath. The sutures of the

antennal club are conspicuous.

67. Gerzeus orichalceus, sp. n.

Rhomboidal, narrow, shining, eneous, the antenne in part, the apical half of the rostrum, and the legs

ferruginous; above sparsely clothed with hair-like, ochreous scales, intermixed on the elytra with a few

white ones, the elytral vestiture arranged in a single line down each interstice, that of the under surface

closer and wholly white. Head finely punctate, transversely grooved between the eyes; rostrum

strongly arcuate, moderately stout, considerably longer than the head and prothorax, finely punctate in

its basal half, the antennee inserted at the middle, the antennal club ovate and rather large. Prothorax

short, conical, constricted in front; finely punctate, the narrow interspaces longitudinally raised.

Scutellum smooth. Elytra subtriangular, sharply striate, the interstices finely and irregularly uniseriate-

punctate. Beneath densely punctate. Prosternum longitudinally sulcate anteriorly, narrowly raised

between the coxew. Legs rather long and slender.

Length 23, breadth 13 millim. (@ ?)

Hab. Costa Rica, Irazu (Rogers).

294 RHYNCHOPHORA.

One specimen. Near G. scitus and G. viridicans, the prothorax shorter, less

constricted in front, and with the raised lines on the disc less crowded, the antennal

club smaller, the prosternum longitudinally sulcate anteriorly ; the vestiture is long

and hair-like on the prothorax and uniseriately arranged on the elytra.

68. Gerzus suberatus, sp. n.

Rhomboidal, rather narrow, black, with a slight brassy lustre ; somewhat thickly clothed with small, narrow,

brownish-white scales, which are arranged in about two rows down each elytral interstice ; the vestiture

of the under surface and legs whitish. Head finely punctate, transversely grooved between the eyes ;

rostrum abruptly bowed from the base, moderately stout, reaching the apex of the metasternum in

the °, closely punctate-striate in the ¢, much smoother in the 9, the antenne inserted at or near the

middle, the antennal club stout,.oblong-ovate. Prothorax transverse, arcuately narrowing from the

base, strongly constricted in front; densely, finely, confluently punctate, the narrow interstices rugiform.

Elytra subtriangular, rather convex, sharply punctate-striate, the interstices densely rugulose. Beneath

densely punctate ; first ventral segment deeply excavate down the middle in the ¢. Prosternum sulcate

anteriorly. Anterior tibie strongly, in the 9 more feebly, unguiculate, somewhat widened at the apex

in the ¢.

Length 33-34, breadth 14-12 millim. (¢ @.)

Hab. GUATEMALA, Calderas on the slope of the Volcan de Fuego 7000 feet

(Champion). |

Two specimens, both in worn condition. Near the Mexican G. scitus, but with the

elytra more rugose and rapidly narrowed from the base, the vestiture finer, the legs

and antenne infuscate, the antennal club more elongate and with longer basal joint,

the prosternum (as in G. orichalceus) sulcate anteriorly. The unarmed prosternum in

the male, the much longer rostrum, the longer antennal club, &c., separate G. suberatus

from G, furcifer.

69. Gerzeus bifurcatus, sp.n. (Tab. XVI. figg. 4, 4a, 9 .)

Subrhomboidal, rather narrow, piceous, the apical half of the rostrum, antenne, tibie, and tarsi more or less

ferruginous ; densely clothed with narrow whitish and ochreous scales, which are clustered on the elytra

into three or four close series down each interstice, the prothorax with two partially denuded longitudinal

spaces on the disc, the elytra each with a sharply-defined, transverse, oblique, interiorly bifurcate,

blackish-brown fascia at about the middle of the disc; the vestiture of the under surface and legs rather

sparse and fine, closer on the front of the prosternum. Head finely punctate ; rostrum strongly arcuate,

slightly longer than the head and prothorax, thickened, punctured, and Squamose at the base, the outer

half flattened and almost smooth, the antenne inserted at a little behind the middle, the club stout and

ovate. Prothorax transverse, narrowing from the base, constricted jin front, densely, finely punctate.

Scutellum small, transverse, almost bare. Elytra subtriangular, rather long, flattened on the disc at the

base, and with prominent subapical callosities ; finely punctate-striate, the interstices densely punctulate.

Beneath closely punctate, the sides of the metasternum smoother. Prosternum slightly hollowed down

the middle. Anterior coxe narrowly separated.

Length 34, breadth 12 millim. (9@.)

Hab. Mrxico, Chilpancingo (H. H. Smith).

One specimen, in very fresh condition. Closely related to @. tuberculifer, but with

a large, oblique, bifurcate, sharply-defined, dark patch on the disc of each elytron, the

GERAUS. 295

rostrum more curved, the vestiture of the under surface sparser and finer, the pro-

sternum without trace of prominences. The vestiture of the rest of the upper surface

is whitish, shading off into ochreous in places, and that of the elytra is coarse.

70. Gerzeus decemlineatus, sp. n. (Tab. XVI. figg. 5, 5a, b, 3.)

Oblong-rhomboidal, shining, black (the legs ferruginous in one immature specimen); the prothorax with

a median vitta and a space along the sides, the scutellum, the alternate elytral interstices, and the entire

under surface, thickly clothed with white scales, the rest of the vestiture of the upper surface sparse,

blackish-brown, that of the rostrum and legs white. Head finely punctate; rostrum arcuate, longer

than the head and prothorax, thickened towards the base, closely punctate and feebly carinate,—the

apical portion in the Q more slender, longer, smoother, and flattened,—the antenne inserted at ( 2) or

beyond ( d) the middle, the antennal club oblong-ovate. Prothorax short, conical, feebly constricted in

front; densely, finely punctate. Scutellum squamose. Elytra much wider than the prothorax, long,

narrowing from the base ; deeply punctate-striate, the interstices rugulosely punctate. Beneath densely,

finely punctate; ventral segments 1 and 2 slightly depressed down the middle. Prosternum unimpressed.

Anterior coxe narrowly separated. Legs rather long and slender.

$. Anterior tibie curved, strongly unguiculate, hollowed on the inner side from about the basal third to

near the tip.

Length 32-44, breadth 14-2 millim. (¢ Q.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Three males and one female. This is one of many interesting new forms found by

Mr. Smith at Omilteme. It is readily distinguishable by its long, albo-lineate elytra,

short, conical, trivittate prothorax, &c.

71. Gerzeus omiltema, sp.n. (Tab. XVI. figg. 6, 6a, 2.)

Elongate-rhomboidal, flattened above, black, the tarsi ferruginous at the base ; thickly clothed with

small scales, which are whitish on the median lobe of the prothorax, on the scutellum, along the

suture, and on the fifth elytral interstice posteriorly, and brown on the rest of the upper surface ; the

under surface albo-squamose. Head closely punctate; rostrum stout, arcuate, slightly longer than the

head and prothorax, sparsely, finely punctate, the antenne inserted at a little beyond the middle, the

outer joints of the funiculus strongly transverse, the club short and stout. Prothorax transverse, rounded

at the sides, narrowed and feebly constricted in front; densely, finely punctate. Scutellum rather large,

densely squamose. Elytra considerably wider than the prothorax, elongate-triangular ; finely punctate-

striate, the interstices flat and densely, rugulosely punctate. Beneath densely punctate. Prosternum

shallowly but sharply sulcate anteriorly, the sulcus limited on each side by a short straight ridge.

Anterior coxe separated by about half their width. Metathoracic episterna very broad. Legs moderately

long; tibize each with a slender uncus at the tip.

Length 4, breadth 13 millim. (@.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (4. 4. Smith).

One specimen. Very like Pseudogerwus macropterus, but more flattened above, the

mandibles straight on their inner edge, the prosternum sulcate anteriorly, the meta-

thoracic episterna much broader, the scutellum larger, the elytral interstices densely

rugulose, the sinuous interspaces on the prothorax not longitudinally confluent. The

antennal club is short.

296 RHYNCHOPHORA.

72. Gereus ciliatipes, sp.n. (Tab. XVI. figg. 7, 7a, 3.)

Subrhomboidal, narrow, flattened above, black, shining; thickly clothed with very small, narrow, brown and

whitish scales, the whitish scales on the prothorax mainly condensed into three vitte and those on the

elytra into a faint line along the first (sutural), fifth, and seventh interstices ; the vestiture of the under

surface rather dense and white. Head finely punctate; rostrum arcuate, slightly longer than the head

and prothorax, rather slender, finely punctate, the apical portion flattened and smoother, clothed with a

few hairs at the tip beneath, the antenne inserted at a little beyond the middle, the autennal club ovate.

Prothorax transverse, narrowing from the base, constricted in front; densely, finely punctate, except

along the smooth abbreviated median line. Elytra oblong-subtriangular ; narrowly and sharply punctate-

striate, the interstices densely punctulate. Beneath densely, finely punctate; ventral segments 1 and 2

broadly flattened down the middle. Prosternum unimpressed behind the transverse subapical groove.

Anterior coxee narrowly separated. Femora beneath, and the tibie within, clothed with fine hairs, those

on the hind tibie long and conspicuous ; all the tibiee somewhat strongly unguiculate.

Length 3-31, breadth 14-13 millim. (<.)

Hab. Guatemaua, Calderas 7000 feet (Champion).

Two males. The long fine hairs on the legs are doubtless peculiar to this sex: they

are easily abraded and are almost wanting on the hind tibie in one of the two

specimens described. Smaller, less oblong, and more shining than G. omilteme, the

scutellum smaller and less densely squamose, the prosternum not sulcate.

73. Gergeus dugesi, sp.n. (Tab. XVI. figg. 8, 8a, 3.)

Oblong-rhomboidal, flattened above, nigro-piceous; thickly clothed with narrow ochraceous scales, the

prothorax with two abbreviated vitte on the disc and a streak on the flanks, and the elytra with a vitta

along the disc near the suture and another at the sides, blackish-brown, these markings obliterated in

one specimen, the scales on the prothorax transversely arranged and those on the elytra clustered into

three rows down each interstice; the vestiture of the legs and under surface dense, yellowish-white.

Head finely punctate; rostrum a little longer than the head and prothorax, arcuate, slender, thickened at

the base, finely punctate, except along the middle, the antenne inserted at about midway, the antennal

club ovate. Prothorax slightly broader than long, narrowing from the base, feebly constricted in front;

densely, finely punctate. Elytra subtriangular, rather long, narrowly punctate-striate, the interstices

densely punctate. Beneath densely punctate. Prosternum unimpressed behind the transverse subapical

groove. First ventral segment flattened down the middle. Anterior coxe well-separated.

Length 4-44, breadth 1{-24 millim. (<¢.)

Hab. Mexico, Guanajuato (Salle).

Two males—one with the prothorax and elytra nigro-vittate (taken as the type),

the other with the vestiture of the upper surface uniformly ochraceous. Narrower

and more flattened above than G. ¢riviétatus, the prosternum unarmed in the male,

the vestiture of the upper surface longer, the scutellum clothed with yellowish-white

scales.

74. Gereus bicruciatus, sp.n. (Tab. XVI. fige. 9, 9a, 2.)

Elliptic, rather narrow, black ; thickly clothed with whitish scales, the prothorax with two broad vitte on the

disc (in one specimen reduced to four spots) and a spot or elongate streak on each side, the scutellum, and

the elytra each with a large subquadrate patch on the disc before the middle and a smaller patch towards

the apex, these markings usually connected along the sides, fuscous or blackish. Head closely punctate ;

rostrum strongly arcuate, about as long as the head and prothorax, moderately stout, closely punctate,

GERAUS. 297

much smoother in the 9, the antenne inserted at the middle, the antennal club ovate. Prothorax

densely, finely punctate, often with indications of a raised median line. Elytra finely punctate-striate,

the interstices densely punctate. Beneath densely punctate. Prosternum slightly depressed in the

middle in front, unarmed in the ¢. Anterior coxe separated by fully their own width.

Length 21-23, breadth 1-14 millim. (¢ 2.)

Hab. Mexico, Teapa in Tabasco (H. H. Smith); British Honpvuras, Belize

(Blancaneauz) ; GuatemaLa, Chiacam in Vera Paz (Champion).

Found in numbers at Chiacam. Smaller and narrower than G. crucifer, the

vestiture not so coarse, the markings equally variable (the prothorax, however, usually

with a dark lateral stripe, in addition to the two vitte on the disc), the rostrum a little

more slender, the prosternum unarmed in the male. ‘The present species, like

G. crucifer and G. octomaculatus, appears to be confined to the Atlantic slope.

75. Gerzus lineatulus, sp.n. (Tab. XVI. figg. 10, 10a, ¢.)

Oblong-elliptic, piceous, the antenne (the club excepted), the outer half of the rostrum, and the legs obscure

ferruginous ; thickly clothed with brown and white scales, the white scales on the prothorax condensed

into a sharply-defined, narrow, submarginal vitta on each side and those on the elytra into a long streak

down the suture and another on the sixth interstice, a short streak on the fourth interstice beyond the

middle and another on the second near the apex, and various spots at the base; the vestiture of the

under surface dense and whitish. Head closely punctate; rostrum arcuate, rather longer than the head

and prothorax, moderately stout, closely punctured, the antennz inserted at the middle, the antennal club

ovate. Prothorax strongly transverse, arcuately narrowing from the base; densely, finely punctate,

with a smooth, faint, incomplete, median line, Scutellum small, almost bare. Elytra narrowing from

the base, the humeri rounded; narrowly punctate-striate, the interstices rugulose. Beneath densely

punctate, the first ventral segment hollowed and more sparsely punctured down the middle. Prosternum

unimpressed behind the shallow transverse subapical groove. Anterior coxe separated by rather less

than half their own width. Anterior tibie unguiculate. Tarsal claws small.

Length 22, breadth 1} millim. (¢.)

Hab. Guatema.a, Capetillo (Champion).

One specimen, in very fresh condition, In this species the brown vestiture pre-

dominates on the upper surface, the white submarginal vitte on the prothorax are

sharply defined, the white lines on the elytra are conspicuous, and the scales along the

sutural stripe are imbricate. Centrinopus alternatus, Casey, is somewhat similarly

marked, but it has the prothorax trivittate, the scutellum densely squamose, the

sutural stripe is wanting, &c.

76. Gerzeus iners, sp.n. (Tab. XVI. figg. 11, 11a, ¢.)

Oblong-ovate, rather convex, shining, black; sparsely clothed with rather coarse, narrow, setiform, yellowish-

white scales, which are arranged in an irregular double series down each of the elytral interstices, the

vestiture of the under surface whitish. Head sparsely, finely punctate, transversely grooved between

the eyes; rostrum arcuate, about as long as the head and prothorax, rather stout, slightly thickened

towards the base, sparsely punctate, the antennz inserted at about the middle, the antennal club short-

ovate. Prothorax transverse, constricted and much narrowed in front, the sides rounded from near the

pase; densely, confluently punctate, the narrow interspaces raised into sinuous longitudinal ridges, the

dise with a smooth median ridge. Scutellum small, hollowed behind, almost bare. Elytra moderately

long, punctato-sulcate, the interstices convex and sparsely, irregularly biseriate-punc‘ate. Beneath

closely punctate 5 first ventral segment more or less hollowed down the middie. Prosternum excavate

BIOL. CENTR.-AMER., Coleopt., Vol. IV, Pt. 5, May 1908. 2 Q9

298 RHYNCHOPHORA.

down the middle anteriorly. Anterior coxe narrowly separated. ‘Tibi strongly unguiculate, the

anterior and intermediate pairs dilated at the apex. ;

Length 4—5, breadth 1,%,-24 millim. (<.)

Hab. Mexico, Omilteme, Xucumanatlan and Chilpancingo in Guerrero, 4600-

8000 feet (H. H. Smith).

Three specimens, apparently all males. An oblong, rather convex form, with a

confluently punctate prothorax (except along the smooth median line), convex, shining

elytral interstices, and coarse, scattered, setiform vestiture. GG. iners somewhat

resembles G. coarctatus, these two species being more elongate than usual in this

genus, approaching Micentrus.

77. Gerzeus tonsilis. (Tab. XVI. figg. 12, 12a, }, 3.)

Centrinus tonsilis, Boh. in Schénh. Gen. Cure. vill. 1, p. 218°.

Centrinus (Odontocorynus) tonsilis, Casey, Aun. N. York Acad. Sci. vi. p. 577, nota’.

Hab. Mexico!? (Dupont and Truqui, in Mus. Brit.), Toxpam, Orizaba, Parada,

Yolos (Sallé), Cordova, Jalapa, Oaxaca (Hége), Cuernavaca (U.S. Nat. Mus.),

Chilpancingo (Hége, H. H. Smith), Amula (H#. H. Smith), Temax in N. Yucatan

(Gaumer); Costa Rica (Van Patten).

A common insect in Mexico*. Distinguished by its oblong shape, the rather long,

close, uniform, cinereous vestiture of the upper surface (arranged in two or three

lines down each elytral interstice), and the unarmed prosternum and simple anterior

tibie of the male. The rostrum is rather stout, sparsely squamose to the tip in the

male, a little smoother and flattened towards the apex in the female. ‘The prosternum

is slightly depressed down the middle. ‘The intermediate and posterior tibie are

dilated at the apex, both strongly unguiculate in the male, the anterior pair with the

claw almost obsolete in both sexes. The first ventral segment is excavate down the

middle in the male. The mandibles are rather long, hollowed at the sides beneath,

and meeting in a straight line above. ‘The antennal club is small and ovate, not in

the least modified in the male.

78. Gereeus gaumeri, sp.n. (Tab. XVI. figg. 13, 13a, ¢.)

Oblong. rhomboidal, shining, black ; above sparsely clothed with narrow, ‘adpressed, setiform, cinereous scales,

the scales on the prothorax transversely arranged and those on the elytra condensed into one or two

lines down each interstice, the prothorax with a faint vitta of coarser scales (those on the dise being

tine and hair-like) on each side near the outer margin and the elytra with the vestiture a little more

condensed at the base of the second and third interstices; the under surface somewhat thickly albo-

squamose. Head finely punctate, shallowly foveate between the eyes; rostrum arcuate, about as long as

the head and prothorax, rather stout, slightly thickened towards the base, striate-punctate, smoother

at the apex in the 9, the antenne inserted at (¢ ) or a little beyond ( ¢) the middle, the antennal club

ovate. Prothorax broader than long, narrowing from the base, constricted in front 3 Closely, rather

coarsely punctate, except along the smooth median line. Elytra subtriangular, narrowly punctate-striate,

* Since these pages have been in type I have seen an allied form with finer vestiture, &., from Mexico city

and Guanajuato, which must be dealt with in the Supplement.

GERAUS. 299

the interstices flat and asperato-punctate, 2-6 with a double, and the others with a single row of scales.

Beneath closely punctate. Prosternum without definite impression, unarmed in the g. First ventral

segment depressed down the middle in the ¢. Anterior coxe separated by a little less than their own

width, Tibi somewhat hairy, all sharply unguiculate at the apex in both sexes, the intermediate and

. posterior pairs widened at the tip.

Length 4-44, breadth 2-24 millim. (¢ 2.)

Hab. Mextco, Tehuantepec (U.S. Nat. Mus.), Campeche in Yucatan (Leseleuc),

Temax in N. Yucatan (Gauwmer); Nicaragua, Chontales (Janson).

Sent us in abundance by Mr. Gaumer. A single specimen only ( 2 ) from Nicaragua.

Very like G. fonsilis (Boh.), a species occurring with it in Yucatan, but with the

vestiture sparser and finer above, the prothorax with fine hair-like scales on the disc

and a faint submarginal band of coarser scales on each side, the elytral interstices each

with one or two lines of setiform scales, the anterior tibiz strongly unguiculate in the

male. The unarmed prosternum, darker legs, immaculate elytra, &c., separate

G. gaumeri from G. submaculatus.

79 Gerzus puellus, sp. n.

Oblong-elliptic, narrow, shining, nigro-piceous; above somewhat thickly clothed with narrow, yellowish-white

scales, which become finer and hair-like on the disc of the prothorax, those on the elytra arranged in two

lines down each interstice, 1 with one line only, the vestiture of the under surface closer and coarser.

Head finely punctate; rostrum arcuate, a little longer than the head and prothorax, moderately stout,

thickened towards the base, closely punctate, the antenne inserted at about the middle, the funiculus

slender, the club ovate. Prothorax transverse, gradually and arcuately narrowing from the base, feebly

constricted in front; densely punctate, with indications of a smooth median line. Scutellum small,

bare. Elytra oblong-subtriangular, very little wider than the prothorax; finely punctate-striate, the

interstices rugulosely punctate. Beneath densely punctate; first ventral segment slightly depressed down

the middle. Prosternum unimpressed behind the transverse subapical groove. Anterior coxe well

separated. Legs rather long; anterior and intermediate tibiw strongly unguiculate,

Length 3, breadth 14 millim. (¢.) | |

Hab. Mexico, Tepetlapa in Guerrero (HZ. H. Smith).

- One male. Smaller than G. tonsilis, the vestiture not so close, finer on the disc and

somewhat condensed along the sides of the prothorax, and more regularly arranged on

the elytra, the anterior and intermediate tibie (¢) strongly unguiculate. G. puedlus

has somewhat the facies of Nicentrus lineicollis.

80. Gerseus candidus, sp.n. (Tab. XVI. figg. 14, 14a, ¢.)

Oblong-rhomboidal, black ; densely clothed with oblong pure white or whitish scales, which are clustered into

about three or four compact rows down each elytral interstice, the scales on the under surface larger,

hiding the sculpture. Head closely punctate; rostrum arcuate, longer than the head and prothorax,

stout, tapering towards the tip, closely punctate, that of the Q bare and almost smooth from about the

basal third, the antenne inserted at (¢) or behind (Q) the middle, the antennal club stout, ovate.

Prothorax transverse, subconical, feebly constricted in front; densely, finely punctate, with indications of

a raised median line. Scutellum almost bare. Elytra subtriangular, rather long, flattened on the disc

at the base; finely punctate-striate, the interstices densely rugulosely punctate. Beneath densely

punctate. Prosternum unarmed, hollowed down the middle in the g. Anterior tibiw in the ¢ sinuous

within and feebly unguiculate at the apex.

Length 4-42, breadth 2-2;'; millim. (¢ 2.)

20Q 2

500 RHYNCHOPHORA.

Hab. Mexico, Guanajuato (Sallé: 3), Omilteme, Chilpancingo (7. H. Smith: -? ).

One male and two females, the latter in very fresh condition. Larger and more

densely squamose than G. hospes, the rostrum less abruptly narrowed (especially in

the 2), the scutellum almost bare, the anterior tibiz of the male not excised near the

tip beneath, the antennal club stouter. The much denser vestiture, the hollowed and

distinctly unguiculate anterior tibie of the male, &c., separate G. candidus from

G. tonsilis.

81. Gerzeus hospes. (Tab. XVI. figg. 15, 15a, b, ¢; 16, 2.)

9. Centrinus hospes, Casey, Ann. N. York Acad. Sci. vi. pp. 575, 585°.

Oblong-rhomboidal, black, the antenne and tarsal claws usually more or less ferruginous; above thickly and

uniformly clothed with narrow whitish or brownish-white scales, the under surface with larger and

broader white scales. Head finely punctate ; rostrum arcuate, longer than the head and prothorax, much

thickened in ifs basal half, squamose and closely punctate,—the apical portion in the 2 longer, abruptly

flattened, almost smooth, and slender,—the antenne inserted at a little behind the middle in the ¢,

and at about the basal third in the 9, the antennal club ovate.. Prothorax transverse, narrowing

from the base, feebly constricted in front; densely, finely punctate. Scutellum squamose. Elytra

subtriangular, shallowly punctate-striate, the interstices densely, rugulosely punctate, each with two or

three rows of scales. Beneath densely punctate ; first ventral segment fiattened in the middle in the ¢.

Prosternum almost unimpressed. Anterior cox separated by a little less than half their own width.

Legs moderately long.

dg. Anterior and intermediate tibie strongly unguiculate, the anterior pair widened from near the base and

abruptly notched beneath just before the tip, the intermediate pair also sinuous ; posterior tibie hairy

on the inner side at the apex.

Length 3-4, breadth 14-2 millim. (¢ 9.)

Hab. NortH America, Tucson in Arizona!.—Mexico (Dupont and Truqui, in Mus.

Brit.), Chilpancingo (H. H. Smith), Yautepec, Irapuato, Iguaia, Cordova, Oaxaca

(Hoge), Guanajuato, Toxpam (Sallé), San Rafael Jicaltepec (U.S. Nat. Mus.);

GuaTeMaLA, San Gerdnimo (Champion); Costa Rica, Escazu 1200 metres (Biolley),

Atenas (U.S. Nat. Mus.); Panama, Volcan de Chiriqui (Champion).

Sent in numbers from Chilpancingo and Escazu; the Costa Rican specimens are

labelled as having been found on a species of Croton. Smaller and duller than

G. tonsilis; the rostrum of the female (fig. 16) abruptly narrowed at about the basal

third. and quite slender and almost smooth thence to the apex, the antenne inserted

far behind the middle in this sex; the prothorax more transverse; the anterior tibive

of the male abruptly notched beneath near the apex and strongly unguiculate (fig. 155).

The vestiture is denser in some examples than in others. A male and female from

Chilpancingo are figured. G. hospes was described from a single female specimen

and the identification is perhaps doubtful.

82. Gereeus incolatus, sp. n.

Rhomboidal, rather narrow, black, shining, the antenne and tarsi more or less ferruginous; above rather

sparsely clothed with narrow yellowish-white scales, which are arranged in two or three rows down each

elytral interstice, the vestiture of the under surface coarser, closer, and wholly whitish. Head finely

punctate; rostrum strongly arcuate, a little longer than the head and prothorax, stout, tapering towards

GERAUS. 801

the tip, closely punctate,—the apical portion flattened, longer, and almost smooth in the 9 ,—the antenne

inserted at ( ¢ ) or behind ( 2 ) the middle, the antennal club ovate. Prothorax transverse, subconical,

densely, finely punctate, with indications of a smooth median line. Scutellum almost bare. Elytra

triangular, narrowly punctate-striate, the interstices rugulosely punctate. Beneath densely punctate.

Prosternum unarmed. Anterior tibia of the ¢ narrow, strongly unguiculate, sinuous within.

Length 3-3}, breadth 13-13 millim. (¢ 2.)

Hab. Mexico, Chilp incingo and Omilteme in Guerrero (H. H. Smith).

One male and two females. Very. like G. hospes, but more sparsely squamose

above, the scutellum almost bare, the rostrum less abruptly narrowed (especially in

the 2}, shorter in the male, the anterior tibia narrow, not excised near the tip

beneath in the male, the antenne and tarsi almost wholly ferruginous.

83. Gerzeus rubritarsis, sp. n.

Rhomboidal, black, the antenn and tarsi rufo-ferruginous; above sparsely clothed with fine, hair-like,

whitish scales, which become a little more crowded at each angle of the prothorax and on the median

lobe, those on the elytra arranged in one or two rows down each interstice, the vestiture of the under

surface coarser, white, dense on the anterior portion of the prosternum and on the metathoracic episterna.

Head finely punctate, transversely depressed between the eyes; rostrum strongly arcuate, a little longer

than the head and prothorax, moderately stout, sparsely punctate, smoother in the Q, the antenne

inserted slightly beyond ( 3) or behind ( 2) the middle, the antennal club ovate. Prothorax transverse,

narrowing from the base, constricted in front ; densely punctate, with an incomplete smooth median line.

Elytra triangular, deeply punctate-striate, the interstices rugulosely punctate. Beneath densely punctate ;

first ventral segment hollowed down the middle in the ¢. Prosternum unarmed, transversely foveate in

the subapical groove. Legs rather long and slender; anterior tibie strongly unguiculate in the ¢.

Length 23-34, breadth 12-14 millim. (¢ 9.)

Hab. Mexico, Juquila in Oaxaca (Sallé: ¢ 2); Guaremaa, Trece Aguas (U.S. Nat.

Mus.: ¢); Panama, Tabernilla, Canal Zone (Busck, in U.S, Nat. Mus.: ¢ ).

A pair from Juquila (taken as the types) and one specimen from each of the other

localities. Distinguishable amongst its allies with unarmed prosternum by the sparse,

fine vestiture of the upper surface, which is somewhat condensed at each angle of the

prothorax, the rufescent antenne and tarsi, &c. G. rudritarsis approaches G. incolatus,

but differs from it in the sparser and finer vestiture, especially of that of the prothorax.

84, Gereous varius, sp.n. (Tab. XVI. figg. 17, 17 a, 2.)

Subrhomboidal, narrow, shining, black, the elytra in one specimen each with a transverse rufous patch on

the outer part of the disc before the middle; sparsely clothed (the funiculus included) with setiform,

semierect, white scales, which are arranged in a single series along each elytral interstice; the under

surface thickly set with larger pure white scales. Head sparsely punctate; rostrum arcuate, longer

than the head and prothorax, rather stout, thickly punctate on each side at the base and almost

smooth thence to the tip, the antenne inserted behind the middle, the antennal club stout, short-ovate.

Prothorax transverse, rounded at the sides anteriorly, constricted and much narrowed in front; coarsely,

confluently punctate. Elytra subtriangular, deeply punctate-striate, the interstices somewhat convex

and roughly uniseriate-punctate. Beneath densely punctate. Prosternum unimpressed behind the

transverse subapical groove. Legs moderately long; anterior and intermediate tibiz unguiculate,

Length 3-31, breadth 13-13 millim. (@.)

Hab. Mexico, Chilpancingo (Hoge), Soledad (ZH. H. Smith).

Two females, both from Guerrero, the one from Chilpancingo with a bright rufous

802 RHYNCHOPHORA.

patch on the outer part of the disc of each elytron (fig. 17), the other immaculate.

The vestiture of the upper surface is semierect and setiform, and the prothorax is

coarsely punctured. The mandibles are very slightly decussate at the tip.

85. Gerzus albosetosus, sp. n.

Subrhomboidal, narrow, black, shining ; above sparsely clothed with setiform white scales intermixed with

blackish more or less erect hairs, the white scales on the prothorax condensed along the basal margin or

down the middle, the vestiture of the elytra arranged in a single line down each interstice, that of the

under surface rather sparse and white, denser on the meso- and metasternal side-pieces. Head finely

punctate; rostrum arcuate, about as long as the head and prothorax, thickened towards the base, and

somewhat closely punctate—in the 2 more abruptly bowed at the base, flattened towards the tip,

and much smoother,—the antenne inserted at the middle, the antennal club stout, short-ovate.

Prothorax transverse, rounded at the sides anteriorly, strongly constricted in front ; rather coarsely,

confluently punctate, sometimes with a smooth central line. Elytra subtriangular, deeply punctate-

striate, the interstices finely and irregularly uniseriate-punctate. Beneath densely punctate; first

ventral segment broadly depressed down the middle in the g. Prosternum unimpressed behind the

transverse subapical groove.

Length 21-23, breadth 1-14 millim. (¢ 9.)

Hab. Mexico (Dupont, in Mus. Brit.), Chilpancingo (H. H. Smith), Jalapa (U.S.

Nat. Mus.) ; GuatEMAta, near the city (Salvin), Capetillo, Duefias (Champion).

Seven specimens, all females but one. Smaller and less rugose than G. varius,

the antenne inserted at the middle of the rostrum, the elytral interstices finely

uniseriate-punctate. The vestiture is somewhat variable in extent, and the blackish

hairs (conspicuous in one of the examples from Guatemala city) are not always

_ present.

86. Gerzeus inchoatus, sp. n.

Ovate, shining, black, the antenne and tarsi obscure ferruginous ; the prothorax with a transverse patch at

the anterior and posterior angles, the elytra with a streak on the sutural interstice at the base, the

prosternum with a transverse band in front, and the metathoracic episterna, thickly clothed with rather

coarse, oblong, white scales, the elytra also with scattered similar scales at the base and on the apical half,

the rest of the under surface and the legs with scattered, very small, hair-like, white scales. Head finely

punctate, transversely depressed between the eyes; rostrum strongly arcuate, rather slender, thickened

towards the base, slightly longer than the head and prothorax, very finely punctate, rugose laterally in

its basal half, the antenne inserted behind the middle, the antennal club ovate. Prothorax short,

arcuately narrowing from the base, strongly constricted and tubulate in front, closely punctate, except

along the median line. Scutellum subquadrate. Elytra subtriangular, much wider than the prothorax,

rather convex; sharply, narrowly striate, the interstices broad, flat, faintly uniseriate-punctate, the

punctures becoming more distinct on the apical half. Beneath closely punctate ; first ventral segment

slightly depressed down the middle in the g. Prosternum short, with a narrow shallow median sulcus,

Anterior coxe narrowly separated. Tibie feebly unguiculate in both sexes,

Length 2,1,-24, breadth 13-12 millim. (¢ 2.)

Hab. GuateMa.a, Duefias (Champion), Trece Aguas (U.S. Nat. Mus.).

Four specimens. The shining surface, the transverse white patch at each angle

of the prothorax, the white streak behind the scutellum, and the scattered white scales

at the base and on the apical half of the elytra distinguish G. inchoatus. It is less

GERAUS. 303

elongate than G. x-notatum (here placed amongst the species with spined prosternum),

the rostrum is differently formed, the elytra have narrower strie and smoother

interstices, &c.

87. Gerzeus corrugatus, sp. n.

Subrhomboidal, shining, black, the antennz, apex of the rostrum, knees, and bases of the tarsi ferruginous ;

the sides of the prothorax, the under surface, and legs sparsely clothed with minute, hair-like, and the

elytral interstices with a few scattered, coarser, setiform, whitish scales, the scutellum albo-squamose.

Head densely punctate, unimpressed between the eyes, which are large and rather narrowly separated ;

rostrum moderately stout, about as long as the head and prothorax, abruptly curved downwards from

near the base, striate-punctate, flattened and smoother in its apical half. Prothorax short, small,

subconical, strongly coustricted in front; longitudinally strigose, the narrow depressed spaces shallowly,

confluently punctate. Scutellum small. Elytra much wider than the prothorax, convex, subtriangular,

depressed along the suture anteriorly, the humeri somewhat swollen; deeply striate, the strie feebly

punctate, the interstices somewhat convex, each with a scattered irregular row of very fine punctures,

seneath finely punctate. Prosternum deeply sulcate, Anterior cox separated by less than half their

own width. Legs moderately long.

Length 24, breadth 14 millim.

Hab.. GuaTEMALA, Cerro Zunil 4000 feet (Champion).

One specimen, with most of the setiform scales of the elytra abraded. The longi-

tudinally strigose prothorax, the more prominent humeri, the squamose scutellum,

the stouter mandibles, and the deeply sulcate prosternum separate G. corrugatus from

G. inchoatus. This insect is also not unlike Ahianinus carinirostris.

88. Gereus capillosus, sp. n.

Elliptic, flattened above, shining, piceous, the rostrum, antenna, legs, and abdomen ferruginous, the elytra

more or less mottled with reddish-brown; the sides and under surface of the prothorax clothed with

long, hair-like, ochreous scales, the elytral interstices each with an interrupted line of similarly-coloured

decumbent sete down each interstice, the rest of the under surface and the legs sparsely set with shorter

and finer hair-like scales. Head closely, minutely punctate, transversely depressed between the eyes ;

rostrum arcuate, a little longer than the head and prothorax, slender, thickened towards the base, finely

punctate, the apical portion smoother, the antenne inserted behind the middle, the antennal club ovate.

Prothorax transverse, somewhat rounded at the sides, constricted and narrowed in front; sparsely,

finely punctate, except along the middle. Scutellum subquadrate. Elytra wider than the prothorax,

rounded-triangular, the sutural region depressed below the base; narrowly striate, the interstices finely

uniseriate-punctate, flat. Beneath rather sparsely punctate; first ventral segment depressed down the

middle. Prosternum with a flattened, smoother space down the centre. Anterior coxe separated by a

— little more than their own width. Legs rather short ; tibie feebly unguiculate.

Length 23-8, breadth 1j-13 millim. (3?) .

Hab. PanaMa, Volcan de Chiriqui (Champion).

Two specimens, varying in the length of the rostrum. This insect resembles a

Texan insect (¢) sent me by Mr. Wickham as Centrinus capillatus, Lec., but it is

smoother and flatter, the rostrum is longer and more slender, the vestiture is longer,

the anterior tibie are feebly unguiculate, &c. The mandibles are slightly decussate

at the tip.

304 RHYNCHOPHORA.

89. Gereus longiusculus, sp. n.

Oblong-rhomboidal, narrow, black, the elytra shining; above sparsely clothed with fine, narrow, whitish

scales, which on the prothorax are condensed into a faint median stripe, and on the elytra are arranged

in one or two lines down each interstice; the vestiture of the under surface denser and coarser, white.

Head finely punctate ; rostrum arcuate, a little longer than the head and prothorax, moderately stout,

closely punctate in the ¢, the apical half flattened, much smoother, and bare in the 9, the antenne

inserted at about the middle, the antennal club ovate and rather long. Prothorax transverse, constricted

in front, narrowing almost from the base; densely, finely, confluently punctate. Elytra oblong-triangular,

much wider than the prothorax, flattened on the disc anteriorly ; sharply punctate-striate, the interstices

punctulate. Beneath densely punctate ; first ventral segment broadly depressed in the ¢. Prosternum

without definite impression. Legs rather slender; tibia feebly unguiculate.

Length 23-8, breadth 1-13 millim. (¢ @.)

Hab. Mexico, Guanajuato (Sallé: ¢ ), Omilteme in Guerrero (H. H. Smith: 3 2).

One male and three females. A small, narrow form, with a dull, densely punctate

prothorax and rather long, shining elytra, the vestiture on the latter arranged in

great part in a single line down each interstice. The Guanajuato specimen has an

indeterminate band of white scales on each side of the prothorax, as well as a faint

median line. The elytra in the present species are longer than in the closely allied

G. varipes.

90. Gerzus varipes, sp. n.

Subrhomboidal, narrow, shining, black, the antenne, tarsi, and apices of the tibie rufo-testaceous; above

sparsely clothed with fine, narrow, ochreous scales, those on the elytra arranged in two lines down

each interstice, 1 with one line only, the prothorax with a faint submarginal vitta on each side and a

spot on the median lobe at the base white ; the vestiture of the under surface and legs whitish, denser

and coarser on the sternal side-pieces and on the front of the prosternum. Head finely punctate ;

rostrum arcuate, a little longer than the head and prothorax, stout and closely punctate laterally at the

base, for the rest flattened, more slender, and almost smooth, the antenne inserted behind the middle,

the antennal club ovate. Prothorax short, subconical ; densely, confluently punctate. Scutellum small,

bare. Elytra subtriangular, flattened on the disc at the base; narrowly punctate-striate, the interstices

punetulate. Beneath densely punctate. Prosternum unimpressed behind the transverse subapical

groove. Anterior cox very narrowly separated. Tibie and tarsi slender.

Length 23, breadth 1,4, millim. (9.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (Z. I. Smith).

One female. Rather less elongate than G. longiusculus, the prothorax shorter, the

rostrum (@) abruptly flattened from the basal third, the antenna, tarsi, and apices of

the tibiz rufo-testaceous, the vestiture of the upper surface differently coloured. The

rostrum has a deep transverse impression on the upper side at about the middle, due

to some injury.

91. Gerwus pallidicornis, sp. n.

Oblong-rhomboidal, narrow, nigro-piceous, the antenne and tarsi rufo-testaceous; above somewhat thickly

clothed with coarse, narrow, whitish and ochreous scales, the whitish scales on the prothorax condensed

into three interrupted vittee and the ochreous ones on the elytra into a narrow sutural stripe, the

vestiture of the elytra arranged in two lines down each interstice, the first with one line only ;

GEREUS. 300

the vestiture of the under surface coarse, close, and white. Head finely punctate; rostrum (¢) a little

longer than the head and prothorax, curved, moderately stout, squamose and closely punctate in its basal

half, and flattened, bare, and sparsely punctate thence to the tip, (Q ) slender, thickened at the base and

flattened and almost smooth thence to the apex, the antennw inserted at (¢) or far behind ( 2 ) the

middle. Prothorax short, subconical, densely punctate. Elytra subtriangular, finely punctate-striate,

the interstices roughly punctate. Beneath densely punctate ; first ventral segment broadly depressed

down the middle in the ¢. Prosternum slightly hollowed down the middle in the ¢, flat in the 2.

Femora clothed with long fine hairs beneath in the g. ‘Tibiee in the ¢ strongly, in the 2 more feebly

unguiculate, the anterior pair with a few long hairs in the ¢.

Length 23-21, breadth 1,45 millim. (d 2.)

Hab, Mexico, Chilpancingo in Guerrero 4600 feet (H. H. Smith).

One pair, the female in very fresh condition. Perhaps an extreme form of

G. varipes, with the vestiture much coarser above and beneath, and differently

coloured on the elytra, the interstices of the latter more rugose. ‘The rostrum of

the male is somewhat flattened and bare in its apical half.

92. Gerzeus tenuescens, sp. n.

Oblong-subrhomboidal, narrow, nigro-piceous, the apices of the tibie and the mandibles more or less

ferruginous; above somewhat thickly clothed with very small, narrow, brown and whitish scales, the

brown scales on the prothorax occupying a broad space on each side of the whitish median line and those

on the elytra mainly confined to a large common subtriangular patch on the anterior half, the elytral

vestiture arranged in a single line down the whole length of the first interstice and in two lines on the

others; the vestiture of the under surface close, uniform, and whitish. Head sparsely punctate ;

rostrum a little longer than the head and prothorax, curved, moderately stout and closely punctate, in

the 2 much smoother and flattened towards the tip, the antenne inserted at ( ¢ ) or slightly behind ( 2 )

the middle, the antennal club ovate. Prothorax short, conical, narrow, constricted in front; densely,

finely punctate. Scutellum squamose, Elytra comparatively long, much wider than the prothorax,

gradually narrowing from the base ; sharply punctate-striate, the interstices finely punctulate. Beneath

densely punctate ; first ventral segment slightly depressed down the middle in the g. Prosternum

unimpressed behind the transverse subapical groove. Tibie strongly, in the 2 more feebly, unguiculate.

Length 22, breadth 1 millim. (oc Q.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Two males and one female. Smaller and narrower than G. longiusculus, with a.

relatively shorter and narrower prothorax, the vestiture finer and arranged in two lines

down each elytral interstice, the first excepted.

98 Gerzus leucomelas, sp. n. - (Tab. XVI. figg. 18, 184, 2.)

Rhomboidal, narrow, shining, black, the tip of the rostrum ferruginous ; clothed above with narrow white

‘and smaller blackish scales, the white scales on the prothorax condensed into a broad marginal and a

narrow median stripe, and those on the elytra (which are arranged in one or two rows down each

interstice) clustered into various narrow streaks at the base and apex, a short stripe on the suture below

the base, and an interrupted post-median fascia ; the under surface densely albo-squamose. Head finely

punctate; rostrum strongly bowed, slender, much longer than the head and prothorax, almost smooth,

the antenne inserted slightly behind the middle, the antennal club ovate. Prothorax short, constricted

in front, narrowing from the base; densely, confluently punctate. Elytra triangular, separately rounded

at the apex; sharply punctate-striate, the interstices sparsely punctulate. Beneath densely punctate,

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, May 1908. 2 RR

306 RHYNCHOPHORA.

Prosternum with a small bare fovea in the apical constriction. Anterior coxe very narrowly separated.

Legs rather slender.

Length 23-22, breadth 14 millim. ( 2.)

Hab. Guaremara, Cerro Zunil (Champion).

Two females. Not unlike G. teniatus, but narrower and smaller, the elytral

interstices less rugose, the white scales differently arranged, the legs more slender,

the prosternum with a bare fovea in front.

94. Gerzeus nubifer, sp. n. (Tab. XVI. figg. 19, 194, ¢.)

55°

Rhomboidal, narrow, rather convex, nigro-piceous, the tip of the rostrum and the tibie and tarsi ferruginous ;

sparsely clothed with narrow fuscous and whitish scales, the whitish scales on the prothorax condensed

into three vittee and those on the elytra into several short streaks at the base, and a broad, indefinite,

oblique, post-median fascia, which extends down the second and third interstices to the apex; the

vestiture of the under surface close and white. Head finely punctate; rostrum strongty arcuate, rather

slender, considerably longer than the head and prothorax, closely punctate, the antennw inserted at a

little beyond the middle, the antennal club ovate. Prothorax short, narrowing from the base, feebly

constricted in front; densely, finely punctate. Elytra subtriangular, much wider than the prothorax,

depressed along the suture at the base, the humeri swollen; finely, rather deeply striate, the interstices

punctulate. Beneath densely punctate; first ventral segment broadly excavate down the middle.

Prosternum unimpressed behind the transverse subapical groove. Legs long, rather slender ; anterior

and intermediate tarsi sharply unguiculate,

Length 23, breadth 14 millim. (<¢.)

Hab. Mexico, Chilpancingo (Champion).

One male. Not unlike the Guatemalan G. leucomelas, but with a narrower and

more finely punctured prothorax, the whitish scales on the elytra differently arranged,

the legs longer and more slender, the tib‘e and tarsi ferruginous, the prosternum

not foveate. Larger than G. tenuescens, the humeri more prominent, the vestiture

differently coloured.

95. Gerzeus teapanus, sp. n.

Elliptic, shining, nigro-piceous, the legs and the tip of the rostrum ferruginous; sparsely clothed with small,

narrow, white and brownish scales, the white scales on the prothorax condensed into a marginal vitta on

each side and those on the elytra into various short streaks at the base and a large indeterminate patch

on the disc beyond the middle; the vestiture of the elytra arranged in a single line down each interstice,

that of the under surface sparse, fine, and white, dense on the metathoracic episterna. Head finely

punctate ; rostrum strongly arcuate, a little longer than the head and prothorax, much thickened in its

basal third, closely punctate, the apical portion in the @ becoming abruptly slender and almost smooth,

the antenne inserted behind the middle. the club ovate. Prothorax short, rapidly and arcuately

narrowing from the base, constricted in front; closely, finely punctate, with an incomplete smooth

median line. Scutellum small, almost bare. Elytra subtriangular, sharply, narrowly striate, the

interstices uniseriate-punctate, Beneath closely punctate; first ventral segment slightly depressed down

the middle in the g. Prosternum unimpressed behind the transverse subapical groove. Anterior tibie

in the ¢ sharply, in the 2 feebly, unguiculate.

Length 23-23, breadth 2},-21 millim. (¢ 9.)

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

One male and three females. In this insect the white scales on the upper surface

GEREUS.,. 307

are condensed into a marginal stripe on each side of the prothorax and various short

streaks at the base of the elytra and a patch on their disc beyond the middle. The

apical portion of the rostrum of the female becomes abruptly slender and almost

smooth, much as in G. hospes.

96. Gerus farinosus, sp. a. (Tab. XVI. figg. 20, 204, o.)

Elliptic, piceous, the antenne, tip of the rostrum, and legs rufescent; densely clothed with rather broad,

' imbricate, yellowish-white scales, which are arranged in three or four rows down each elytral interstice

(the first with two rows only), the vestiture of the under surface whiter. Head closely punctate ;

rostrum arcuate, stout, about as long as the head and prothorax, closely punctate and finely carinate,

the apical half shining and a little smoother in the 9, the antenne inserted at the middle, joints 2-7

of the funiculus short, widening outwards, 2 a little longer than 3, the club ovate. Prothorax

transverse, rapidly and arcuately narrowing from near the base, feebly constricted in front, the median

lobe impinging on the scutellar cavity; densely, finely punctate. Scutellum small, squamose. LElytra

subtriangular, finely striate, the interstices rugulosely punctulate. Beneath densely punctate. Prosternum

unarmed, hollowed in the middle anteriorly and also on the flanks behind the eyes. Legs short; anterior

tibiee feebly unguiculate.

Length 2-23, breadth 1-1} millim. (¢ @.)

Hab. Muxico, Teapa (H. H. Smith); Nicaragua, Managua (Solari).

Seven specimens, all but one from Managua, those obtained by Signor Solari being

in very fresh condition. This species resembles G. picumnus (Herbst) and G. albotectus

(Casey) (for examples of which we are indebted to Capt. Casey); but it has the coarse

vestiture longer and denser (hiding the sculpture), the prosternum unarmed in the

male, and the rostrum stouter, shorter, and closely punctate. The basal median lobe

of the prothorax is considerably produced, reducing the size of the scutellum.

97. Gereus duponti, sp. n.

Subrhomboidal, narrow, piceous, the antenne in part, the tip of the rostrum, tibia, and tarsi ferruginous ;

somewhat thickly clothed with small, narrow, intermixed brown and ochreous scales, the ochreous scales

on the prothorax condensed into three faint vittee and those on the elytra into various long and short

streaks at the base and a faint streak on the fifth interstice beyond the middle; the vestiture of the

under surface close and whitish. Head closely punctate; rostrum arcuate, moderately stout, as long as or

a little longer than the head and prothorax, striate and closely punctate, smoother at the tip, the antenne

inserted slightly beyond the middle, the antennal club ovate. Prothorax transverse, subconical, feebly

constricted in front ; densely, finely punctate. Scutellum small, almost bare. Elytra triangular, the

humeri somewhat prominent; sharply striate, the interstices rugulosely punctate. Beneath densely

punctate ; first ventral segment hollowed down the middle. Prosternum unimpressed behind the shallow

transverse subapical groove. Anterior and intermediate tibie strongly unguiculate.

Length 23-23, breadth 14 millim. (¢.)

Hab. Mexico (Dupont, in Mus. Brit.) ; Guatemata, near the city (Champion).

Two males, varying only in the length of the rostrum. Very similar to G. mendax,

but rhomboidal in form (the prothorax and elytra each rapidly narrowing from the

base), the vestiture of the upper surface finer, that of the elytra in great part brown,

the ochreous scales condensed into several streaks at the base and on the disc. The

specimen in the British Museum is labelled G. lentiginosus ?

2BR2

308 RHYNCHOPHORA.

98. Gerzeus dispositus, sp. n.

Rhomboidal, narrow, rather convex, dull, black, the legs and tip of the rostrum obscure ferruginous ; sparsely

clothed with narrow, whitish, setiform scales, which are regularly and uniseriately arranged down each

elytral interstice; the vestiture of the under surface closer and pure white. Head closely punctate ;

rostrum strongly arcuate, a little longer than the head and prothorax, slightly thickened towards the

base, closely punctate, the antenne inserted at about the middle, the antennal club ovate. Prothorax

transverse, arcuately narrowing from near the base, constricted in front, the basal median lobe short ;

densely, finely punctate. Scutellum almost bare. Elytra triangular, the humeri rather prominent ;

narrowly punctate-striate, the interstices alutaceous and uniscriate-punctate. Beneath densely punctate ;

first ventral segment broadly excavate down the middle. Prosternum unimpressed behind the transverse

subapical groove. Anterior coxe narrowly separated. Anterior and intermediate tibie strongly

unguiculate,

Length 23, breadth 1,4, millim. (<¢.)

Hab. Mexico, Teapa in Tabasco (H. H. Smith).

One male. Near G. duponti, from which it differs in the sparser, uniformly whitish

vestiture of the upper surface, the elytral interstices dull, alutaceous, and with a single

line of setiform scales. The rhomboidal outline, more prominent humeri, whitish

vestiture, and dull surface separate @. dispositus from G. teapanus. ‘The basal lobe of

the prothorax is less produced than in G. picumnus,

99. Gereeus mendax, sp. n.

Elliptic, nigro-piceous or piceous, the antenne, legs, and tip of the rostrum more or less ferruginous; thickly

clothed with pale ochraceous, lanceolate scales, the prothorax often with two vittz on the disc and the

elytra with the suture and one or two faint stripes fulvous, the elytral vestiture arranged in two lines

on each interstice, the first with one line only; the vestiture of the under surface close and uniformly

whitish or yellowish-white. Rostrum a little longer than the head and prothorax, moderately stout,

strongly arcuate, thickly punctate and subcarinate, the apical half smoother in the 9, the antenne

inserted at (Q) or slightly beyond (¢) the middle. Prothorax transverse, arcuately narrowing from

the base, densely punctate. Elytra subtriangular, finely striate, the interstices rugulosely punctate.

Prosternum almost unimpressed behind the transverse subapical groove, unarmed in the g. Anterior

and intermediate tibie sharply unguiculate in the ¢, feebly so in the 92.

Length 2-24, breadth 1-14 millim. (d¢ 9.)

Hab. Mexico (Truqui), Toxpam (Sallé), Jalapa (Hoge), Cordova (U.S. Nat. Mus.),

Atoyac, Orizaba, Teapa (H. H. Smith); Guatema.a, Cerro Zunil, Zapote, Capetillo,

Duefias, Guatemala city, Aceytuno, Chiacam (Champion), Trece Aguas (U.S. Nat. Mus.).

Apparently a common insect in Mexico and Guatemala. This is one of various

forms resembling G. lentiginosus, chiefly recognizable by the rather coarse vestiture,

the prothorax and elytra often with evanescent darker stripes (but always without

trace of a dark spot on the suture); the prosternum of the male unarmed; the

anterior and intermediate tibie rather strongly unguiculate in both sexes*. The

mandibles are short and slightly decussate at the tip.

100. Gergeus pauxillus, sp. n.

Elliptic, piceous, the anteune, tip of the rostrum, and legs ferruginous; somewhat thickly clothed with

small, narrow, pale ochraceous scales, which are arranged in two or three rows down each elytral

* Centrinus relucens, Kirsch, from Peru, is nearly related to G. mendawx, but has fine, glistening, hair-like

vestiture.

GERZUS. 309

interstice, the first with one line only, the vestiture of the under surface closer and whitish. Head

closely punctate; rostrum arcuate, stout, striate and closely punctate, smoother at the tip in the 9,

the antenne inserted at about the middle, the antennal club ovate. Prothorax short, arcuately narrowing

from the base, feebly constricted in front; densely, finely punctate. Scutellum small, squamose. Elytra

narrowly punctate-striate, the interstices rugulosely punctate. Beneath densely punctate. Prosternum

unarmed, the transverse subapical groove deeply impressed in the middle and on each side behind the

eyes. Anterior coxe narrowly separated. Legs short; anterior tibie with a short hook.

Length 1,9,-23, breadth 1-13 millim. (¢ 2.)

Hab. Costa Rica, Surubres, near San Mateo, 250 metres (Biolley: 3 ); Panama,

Bugaba (Champion: ¢ ), Tabernilla, Canal Zone (Busck, in U.S. Nat. Mus.: 2).

Five specimens, those from Costa Rica captured in February 1905. Near G. mendaz,

but with the rostrum stouter and shorter. the vestiture finer, the scutellum closely

squamose, the anterior tibie feebly unguiculate, the humeri less prominent *, The

scales on the elytra are narrower than in G. farinosus, and not imbricate.

101. Gerzeus breviculus, sp. n. (Tab. XVI. figg. 21, 21a, 2.)

Subovate, short, convex, black or piceous, the rostrum in part or entirely and the antenne, tibix, and tarsi

ferruginous; sparsely clothed with minute, hair-like, brown scales, the elytral interstices 3, 5, and 7

each with a row of scattered, elongate, larger, white scales, the scutellum also albo-squamose ; the

vestiture of the under surface sparse and white. Head closely punctate, the eyes very large and some-

what narrowly separated; mandibles long and rather stout; rostrum stout, curved, about as long as the

head and prothorax, striate and closely punctate in the ¢, shining and very sparsely punctate in the 9°,

the antenne inserted at the middle, the antennal club oblong-ovate. Prothorax transverse, narrowing

from the base, constricted in front; densely, finely, confluently punctate. Elytra much wider than the

prothorax, subtriangular, deeply punctate-striate, the interstices roughly uniseriate-punctate. Beneath

closely punctate ; first ventral segment broadly depressed in the middle in the ¢. Prosternum with 4

median sulcus extending backward between the anterior coxe, which are separated by about one-half

their own width. Anterior tibie sharply unguiculate in both sexes.

Length 2,1,-24, breadth 14-1] millim. (d 9.)

Hab. Mexico, Toxpam (Saiié); Guaremaua, Zapote (Champion); Panama, Bugaba,

Volcan de Chiriqui (Champion).

Three females and one male (the last-named from the Volcan de Chiriqui), varying

a little in the sculpture of the prothorax. A short, convex, subovate form, with a

rather long, stout rostrum, narrowly-separated eyes, and long mandibles, the scutellum

albo-squamose, the alternate elytral interstices 3, 0, and 7 each with a scattered line

of long white scales.

102. Gerzeus nudipennis, sp. n. (Tab. XVI. figg. 22, 22a, ¢.)

Rhomboidal, narrow, shining, black, the tarsi and the tip of the rostrum ferruginous ; the prothorax thickly

clothed with long, hair-like scales, which are flavous on the disc and white along the sides and on the

median lobe; the scutellum and elytra bare; the vestiture of the under surface very fine and whitish,

coarser and pure white on the prosternum and on the meso- and metasternal side-pieces. Head finely

punctate, foveate between the eyes ; rostrum strongly arcuate, longer than the head and prothorax, stout

and punctured at the base, the apical half flattened, smooth, and more slender, the autennee inserted far

behind the middle (at the basal third in the 9), the antennal club short-ovate, stout, Prothorax

transverse, conical, constricted in front ; densely, finely punctate. Elytra rather convex, comparatively

* Centrinus brunnirostris, Kirsch, from Peru, is a nearly allied form, with denser, finer vestiture, a longer

rostrum, &c.

310 RHYNCHOPHORA.

long, subtriangular, hollowed along the suture at the base; sharply punctate-striate, the interstices flat

and almost smooth. Beneath closely punctate. Prosternum unimpressed behind the transverse subapical

groove. Tibie and tarsi slender, the tibie strongly unguiculate in the ¢, the anterior pair somewhat

curved at the apex in this sex; tarsal claws very slender, long, and divergent.

Length 23, breadth 14 millim. (¢ 2.)

Hab. Mexico, Chilpancingo (H. H. Smith).

One pair. A small, narrow form, with glabrous, polished, deeply striate elytra,

and short, squamose prothorax, the rostrum much thickened at the base and flattened

thence to the apex. The mandibles are short and slightly decussate, and the species,

therefore, will probably have to be removed eventually from the present genus.

CENTRINOPUS.

Centrinopus, Casey, Ann. N. York Acad. Sci. vi. pp. 467, 601 (1892).

Two minute forms were referred to this genus by Casey, specimens of which I

have received either from him or from Mr. Wickham, and both of these, and three

others, are now recorded from within our limits, partly on the authority of examples

labelled “‘ Mexico (Zruquz)” in the Fry collection at the British Museum. Centrinopus

will probably have to be sunk as synonymous with Gerewus. The type, C. helvinus, has

abruptly bent prosternal processes in the male, but no value can be attached to this

character. C. erythropus has an unarmed prosternum and it may not really belong here.

1. Centrinopus alternatus. (Tab. XVI. fig. 23, 2.)

Centrinopus alternatus, Casey, Ann. N. York Acad. Sci. vi. pp. 601, 602 (?)'; vii. p. 599%.

Centrinopus helvinus, Casey, op. cit. vi. pp. 601, 602 (¢ 2)*.

Hab. Nortu America, Maryland}, Indiana ?, Illinois 3, Ohio.—Mzxxico (Zruqui, in

Mus, Brit.: 9); Nicaragua, Managua (Solari: 3 2.)

I have seen three specimens of the var. helvinus of this species from Nicaragua,

and one of each form from Mexico, agreeing with others from the United States

communicated by Mr. Wickham and Capt. Casey. The male of C. alternatus before

me has the prosternal spines rather short and curved, while that of C. helvinus has

them longer and angulate (as described by Casey), and it is probable, therefore, that

the spines vary in length and development, as is often the case in Gereus.

2. Centrinopus mistus, sp.n. (Tab. XVI. figg. 24, 24a, 3.)

Elliptic, narrow, nigro-piceous, the antenna, tibie, and tarsi ferruginous ; thickly clothed with narrow inter-

mixed brown and white scales, the latter condensed into three faint lines on the prothorax and a dense

spot on the scutellum, the scattered white scales on the elytra nowhere condensed into spots ; the vestiture

of the under surface close and white. Head closely punctate; rostrum arcuate, rather slender, thickened

towards the base, a little longer than the head and prothorax, striate and ciosely punctate in the J,

smoother in the 2, the antenne inserted slightly behind the middle, joint 1 of the funiculus long, the

others short, the club ovate. Prothorax transverse, narrowing from near the base, feebly constricted in

front ; densely, finely punctate. Elytra narrowing from the base, flattened on the disc anteriorly, finely

punctate-striate, the interstices rugulose. Beneath densely punctate; first ventral segment broadly

. CENTRINOPUS. 311

excavate down the middle inthe g. Prosternum armed with two acute, downwardly-directed, conical

tubercles, and also deeply excavate, in the 3, the excavation shallower in the 9, the transverse subapical

groove deeply impressed behind the eyes, anterior coxe narrowly separated. Tibie strongly unguiculate

_in both sexes,

Length 24-21, breadth 1-1/3, millim. (¢ 9.)

Hab. Mexico (Druga, in Mus. Brit.: 3 2), Cuernavaca (H. H. Smith: 3 ).

Two males and one female. Near C. alternatus, the brown scales predominating on

the upper surface, the prothorax faintly trivittate, the white scales on the elytra widely

scattered and not condensed into lines or spots.

8. Centrinopus furfurosus, sp. n.

Elliptic, narrow, black, the antenne, tip of the rostrum, and legs more or less ferruginous; densely squamose,

the scales yellowish-white above and white beneath, those on the elytra oval and arranged in three rows

down each interstice, the first with two rows only. Rostrum arcuate, a little longer than the head and

prothorax, thickened and squamose at the base, closely punctate, smoother at the tip, the antenne inserted

behind the middle. Prothorax transverse, subconical, densely, finely punctate. Elytra finely punctate-

striate, the interstices densely punctulate. Prosternal excavation deep, arcuate anteriorly. Anterior

coxe narrowly separated. Tibize feebly unguiculate.

Length 21, breadth 1,4, millim. ( 92.)

Hab. Mexico (Truqui, in Mus. Brit.).

One specimen. This species is densely squamose, like Gereus (Centrinus) albotectus,

Casey, which also has oval scales on the elytra; but it is narrower, the mandibles are

rounded externally, the anterior coxe are more approximate, and the prosternum has

a deep semicircular excavation. The dense, uniform, coarse, yellowish-white vestiture

separates C. furfurosus from its nearest allies.

4, Centrinopus erythropus, sp. n.

Elliptic, rather convex, black, the rostrum, antennse, and legs wholly rufous ; thickly clothed with small

narrow whitish scales, which are a little coarser and more condensed on the median lobe and sides of the

prothorax, on the scutellum, and along the suture of the elytra, the vestiture of the under surface dense

and pure white. Head closely punctate; rostrum a little longer than the head and prothorax, arcuate,

rather stout, shining, sparsely punctate, much smoother in the 2, the antennz inserted at (¢ ) or behind

(Q) the middle. Prothorax strongly transverse, rounded at the sides from near the base, constricted

and narrowed in front; densely, finely punctate, and with an incomplete, smooth, raised, median line.

Elytra finely striate, the interstices densely punctate. Deneath densely punctate; first ventral segment

hollowed down the middle in the ¢. Prosternum unarmed in the g, slightly hollowed down the middle,

the transverse subapical groove deeply impressed. Anterior coxe narrowly separated. Anterior tibise

finely unguiculate. Third tarsal joint large.

Length 22-22, breadth 13-1} millim. (¢ @.)

Hab. Mexico (Truqui, in Mus. Brit.: @), Hidalgo and Mexico city (Barrett, in

U.S. Nat. Mus.: ¢ ).

Three specimens, two of them partly abraded. More convex than C. alternatus, the

rostrum, antenne, and legs clear rufous, the rostrum of the female smoother and bare

from near the base, the prothorax strongly rounded at the sides and more constricted

in front, the vestiture fine, the dense white scutellar spot continued down the suture.

312 RHYNCHOPHORA.

| NICENTRUS.

Nicentrus, Casey, Ann. N. York Acad. Sci. vi. pp. 468, 608 (1892).

Seven N.-American species are referred to this genus, the type of which is Centrinus

lineicollis, Boh., ard several others from our region are now added. They are separable

from Gereus by their more oblong form, and in having the elytra very little wider than

the prothorax, with the humeri not at all prominent; and from Limnobaris by the less

decussate mandibles. ‘The prosternum is unarmed in the male, and the sexual differ-

ences are not very conspicuous. Some of the Central-American forms resemble Barinus

curticollis and B. squamolineatus, Casey, but they differ from that genus in having the

tarsal claws free, the rostrum much less abruptly curved, and the first joint of the

funiculus less elongate. In two of them the antericr and intermediate knees are more

or less spinous or angulate at the apex (as in various Zygopids), the femora are shallowly

sulcate beneath, and the mandibles are slightly decussate at the apex. ‘The Central-

American species may be grouped thus :— |

a. Mandibles (as seen closed) straight on their inner edge.

a’. Mandibles not angulate at the sides beneath. . . . . . . =. + © « Species 1-8.

b*. Mandibles conspicuously angulate at the sides beneath . . . . . . « Species 4.

b. Mandibles (as seen closed) short, slightly decussate at the tip.

c’. Anterior and intermediate knees rounded. . . . . . «. «. + © « « Species 5-8.

d'. Anterior and intermediate knees spinous or angulate.

a’. Femora sulcate from about the middle beneath . . . . . . . « « Species 9, 10.

b’. Femora sulcate at the apex only beneath . . . . . . . . =. ~~ +. Species 11,

1. Nicentrus lineicollis. (Tab. XVI. figg. 25, 25a, ¢.)

Centrinus lineicollis, Boh. in Schénh. Gen. Cure. vill. 1, p. 221° (nec C. lineicollis, Lec. Proc.

Am Phil. Soc. xv. p. 313, and Nicentrus lineicollis, Casey, Ann. N. York Acad. Sci. vi.

p. 609).

Nicentrus ingenuus, Casey, loc. cit. pp. 609, 610.

Hab. Norta America, Illinois, lowa, and Texas?.—Merxico! (Dupont and Truqui,

in Brit. Mus.), Toxpam (Sallé), Cerro de Plumas, Jalapa, Oaxaca (Hoge), Cordova

(U.S. Nat. Mus.), Teapa (Sallé, Hoge, H. H. Smith), Vera Cruz, Atoyac, Orizaba (H. H.

Smith), Temax in N. Yucatan (Gaumer); GuaTeMALa, San Gerénimo, Chiacam, Cahabon

(Champion); Nicaragua, Chontales (Janson); Costa Rica, Irazu (Rogers), San José,

Caché, Guatuso, Patarra, Higuito (Biolley), Zent, Puerto Limon (U.S. Nat. Mus.) ;

Panama, Bugaba, Volcan de Chiriqui, San Feliz (Champion), Tabernilla (U.S. Nat. Mus.).

A common species in Mexico and Central America, and found, according to Biolley,

on Polygonum punctatum, Elliot, and.on a species of Croton. The North-American

specimens referred to JV. linetcollis by Casey, two of which are before me, belong to a

different species *: they are narrower and more parallel-sided, the surface is duller,

* The name J. lecontei is suggested for this species.

NICENTRUS. 313

and the prothorax is more densely punctate, the punctures on the disc in NV. lineicollis

being coarse and separated by narrow shining interspaces. Mr. Wickham has sent me

an example of WV. ingenuus from Iowa, this insect agreeing with some of our specimens

of WV. linetcollis. The legs are usually ferruginous, rarely infuscate. The antenne are

inserted near the middle of the rostrum in both sexes. ‘The male has the anterior

tibie slightly curved and the first ventral segment shallowly depressed down the

middle.

2. Nicentrus forreri, sp. n.

Oblong-ovate, nigro-piceous, the antenne and legs ferruginous; thickly and uniformly clothed with rather

coarse, narrow, yellowish-white scales, which are arranged in about two rows down each elytral inter-

stice (the sutural one included, the third with three rows at the base), the scales on the scutellum

clustered into a conspicuous whitish spot; the vestiture of the under surface denser, coarser, and whitish.

Head closely punctate; rostrum moderately stout, strongly arcuate, a little shorter than the head and

prothorax, closely punctate and squamose at the base, the apical half bare, shining, and sparsely

punctured, the antenne inserted at about the middle, the club ovate. Prothorax broader than long, the

sides subparallel at the base and arcuately converging from the middle forwards ; densely, finely punctate.

Elytra a little wider than the prothorax, finely punctate-striate, the interstices rugulosely punctate.

Beneath densely punctate. Prosternum shallowly foveate in the subapical constriction. Anterior cox

rather narrowly separated. Legs short; tibie finely unguiculate.

Length 22-21, breadth 14-114 millim. (@.)

Hab. Mexico, Presidio (Lorrer).

Three specimens, apparently all females. Smaller and more densely and uniformly

squamose than V. Jineicollis, the prothorax densely, finely punctate. |

3. Nicentrus placidus, sp. n.

Elongate, narrow, flattened above, black ; thickly clothed with small, narrow, whitish scales, which are

arranged in two close rows down each elytral interstice, and are somewhat condensed along the sides and

middle of the prothorax, the vestiture of the intervening spaces on the disc of the latter ochreous, that of

the under surface rather coarse and white. Head finely punctate, foveate between the eyes; rostrum

curved, stout, nearly as long as the head and prothorax, closely striato-punctate, in the 2 longer, smoother,

and more bowed at the base, the antenne inserted at about the middle. Prothorax transverse, rounded

at the sides anteriorly, constricted in front; densely, finely punctate. Elytra long, a little wider than the

prothorax, subparallel at the base; finely punctate-striate, the interstices closely punctulate. Beneath

densely punctate. Prosternum unimpressed behind the transverse subapical groove.

Length 3, breadth 14 millim. (¢ 9.)

Hab. Mexico, Xucumanatlan in Guerrero (H. H. Smith).

One pair. An elongate, small, flattened form, with short prothorax, long elytra, and

stout, curved rostrum, the vestiture of the elytra arranged in two rows down each

interstice. A worn female from Omilteme, with the vestiture of the elytra in great

part ochraceous (except along the suture) and the tibie ferruginous, doubtless belongs

to the same species.

N. placidus is of about the same size and shape as N. lineicollis, Lec. (nec Boh.),

but the prothorax is more transverse and the vestiture of the elytra is closer. The

mandibles are straight and pointed.

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, September 1908. 2SS

ol4 RHYNCHOPHORA.

4. Nicentrus testaceipes, sp.n. (Tab. XVI. figg. 26, 26a, 2.)

Oblong, flattened above, black or piceous, the antenne, the rostrum wholly or in great part, and the legs

rufo-testaceous; thickly and uniformly clothed with small, narrow, flavo-cinereous scales, which are

arranged in three close rows down each elytral interstice, the vestiture of the under surface a little coarser

and whiter. Head minutely punctate; rostrum stout, strongly arcuate, not longer than the head and

prothorax, punctured and squamose to near the tip in the ¢, almost smooth in the 9, the antenne

inserted at the middle in the ¢, and at about the apical third in the ¢, the antennal club ovate.

Prothorax transverse, rounded at the sides anteriorly, narrowed and feebly constricted in front; densely,

finely punctate, with a faint, abbreviated, smooth, median line. Elytra oblong, a little wider than the

prothorax ; finely punctate-striate, the interstices flat and densely punctulate. Beneath densely, finely

punctate; ventral segments 1 and 5 slightly depressed down the middle in the g. Prosternum unim-

pressed behind the deep transverse subapical groove. Anterior coxe somewhat distant. Anterior tibiz

. with a long stout uncus at the tip in the ¢, finely unguiculate in the 2.

Length 24-33, breadth 1-14 millim. (¢ Q.)

Hab. Mexico (Zruqui, in Mus. Brit.), Laguna in Coahuila (Herrera, in U.S. Nat. |

Mus.: 3 2), Mexico city (Barrett, in U.S. Nat. Mus.), Guanajuato, Toxpam (Sallé),

Jalapa, Oaxaca (Hége); GuatemaLa, Duefias (Champion: ¢ ).

Twelve females and three males, the one from Duefias in bad condition. An oblong

flattened form, with close uniform vestiture, and rufo-testaceous antenne, rostrum, and

legs. The mandibles are pointed and dehiscent at the tip, and angulate at the sides

beneath. The Coahuila examples are labelled as having been found on “corn and

pepper.”

5. Nicentrus candidulus, sp. n. (Tab. XVI. figg. 27, 274, ¢.)

Elongate, narrow, black; above and beneath—a broad space down the disc of the prothorax and a common

oblong scutellar patch on the elytra excepted—thickly clothed with white scales, the scales on the elytra

oval in shape and arranged in about two rows along each interstice. Head closely punctate; rostrum

stout, curved, shorter than the prothorax, rugulosely punctate and subcarinate, the antennz inserted

towards the apex, the antennal club ovate. Prothorax slightly broader than long, constricted in front,

somewhat rounded at the sides; densely, finely punctate, except along a smooth, narrow, median space.

Scutellum rounded, rather large. Elytra oblong, very gradually narrowing from the base; finely punctate-

_ striate, the interstices rugulosely punctate. Beneath densely punctate. Prosternum deeply sulcate.

Anterior coxee narrowly separated. First ventral segment hollowed down the middle. Legs rather long ;

tibiee strongly unguiculate.

‘Length 3, breadth 1,4, millim. (¢.)

Hab. Guatemata, Chiacam in Vera Paz (Champion).

One male. ‘The less transverse prothorax and the uniformly distributed white vesti-

ture of the elytra separate the present species from the nearly-allied N. decemnotatus.

6. Nicentrus decemnotatus, sp.n. (Tab. XVI. figg. 28, 28a, 9.)

Elongate, narrow, shining, black; the prothorax with a broad marginal stripe (extending down the pleura

anteriorly) and a small spot in the middle at the base, the scutellum, and the elytra each with three

sharply-defined spots—one on the disc at the base, one, very large and rounded, at. about the middle

and one, small, at the apex,—densely clothed with broad, pure white, imbricate scales; the rest of the

elytral vestiture black, that of the under surface (a bare space along the propleura excepted) and legs

white, the disc of the prothorax almest bare. Head closely, finely punctate, squamose between the evens

rostrum moderately stout, arcuate, a little longer than the prothorax, closely punctate, becoming smoother

NICENTRUS. 315°

towards the tip, the antenne inserted beyond the middle, the antennal club ovate. Prothorax transverse,

rounded at the sides, constricted in front, feebly sinuate at the base; densely, finely punctate, except

along a narrow smooth median space. Scutellum rounded, rather large. Elytra moderately long, sub-

parallel in their basal half, flattened on the disc; finely punctate-striate, the interstices flat and closely

punctate. Beneath densely punctate. Prosternum deeply sulcate. Anterior coxe narrowly separated.

Length 3, breadth 15), millim. (@.)

Hab. GuateMaLa, Chiacam in Vera Paz (Champion).

One specimen, in perfect condition. It is possible that this insect may be a variety

of NV. candidulus, but the white scales on the elytra in the present species are broad

and imbricate, and condensed into spots.

7. Nicentrus fulvipes, sp. n.

Elongate-ovate, narrow, flattened above, black, the antenne and legs ferruginous; thickly clothed with rather

coarse, narrow, brownish-white, adpressed scales, which are clustered into about two rows down each

elytral interstice ; the vestiture of the under surface close and whitish. Head densely punctate; rostrum

arcuate, moderately stout, short, about as long as the prothorax, sparsely, finely punctate, the antennx

inserted at the middle, the antennal club ovate and rather small. Prothorax a little broader than long,

somewhat rounded at the sides; densely, finely punctate. Scutellum rounded, squamose. Elytra very

little wider than the prothorax, oblong, subparallel in their basal third; finely punctate-striate, the

interstices rugulose. Beneath densely punctate. Prosternum deeply sulcate, the sulcus bordered on each

side by a sharp ridge. Legs rather short; tibie strongly unguiculate.

Length 22, breadth 1 millim. (92?)

Hab. Panama, Volcan de Chiriqui 4000 feet (Champion).

One specimen, somewhat abraded. The close, uniform, brownish-white vestiture of

the upper surface, the squamose scutellum, the entirely ferruginous antenne and legs,

and the short rostrum distinguish JV. fulvipes from its immediate allies. It is longer,

less attenuate, and more densely squamose than JV. femoralis, the knees are

unarmed, and the femora are sulcate at the apex only beneath.

8. Nicentrus puerilis, sp. n.

Oblong-ovate, narrow, shining, black, the tibie sometimes ferruginous ; above sparsely clothed with narrow

whitish scales, which are condensed into a stripe along the sides of the prothorax and a spot in the middle

at the base, the scales on the elytra arranged in a single line down each interstice ; the vestiture of the

under surface closer and also whitish. Head closely punctate ; rostrum curved, rather slender, barely as

long as the prothorax, rugulosely punctate in the g, shining and almost smooth in the 9, the antenne

inserted at about the middle. Prothorax nearly as long as broad, rounded at the sides anteriorly,

strongly constricted in front ; closely, rather coarsely punctate, except along the smooth median line.

Scutellum small, squamose. lytra a little wider than the prothorax, transversely depressed below the

base, the humeri somewhat swollen; sharply punctate-striate, the interstices uniseriate-punctate.

Beneath closely punctate. Prosternum broad and shallowly sulcate, the groove limited on each side by a

distinct ridge. First ventral segment deeply sulcate in the g. Anterior coxe narrowly separated.

Legs rather long and slender ; tibie strongly unguiculate.

Length 23-8, breadth 1-1,5 millim. (¢ 9.)

Hab. Guatemata, Chiacam in Alta Vera Paz (Champion).

Six specimens, all more or less abraded. Not unlike WV. lineicollis, Boh., but.

smaller and narrower, the elytra subparallel at the base, the rostrum not so stout, the

2588 2

316 RHYNCHOPHORA.

prosternum sulcate, the legs more slender. Near NV. candidulus, the vestiture much

sparser above, the prothorax more coarsely punctate, the elytral strie deeper, the

interstices uniseriate-punctate, the prosternal sulcus shallower.

9. Nicentrus femoralis, sp.n. (Tab. XVI. figg. 29, 29a.)

Elongate-elliptic, narrow, flattened above, dull, nigro-piceous; above rather sparsely and uniformly clothed

with small, narrow, white scales, which are arranged in a single line down each elytral interstice ; the

vestiture of the under surface coarser and denser, and also white. Head closely punctate, the eyes

separated by about half the width of the rostrum; rostrum stout, arcuate, about as long as the pro-

thorax, rugulosely punctate at the sides, for the rest shining and almost smooth, the antenne inserted at

about the middle, Prothorax nearly as long as broad, gradually and arcuately narrowing from the base

forward ; closely, somewhat coarsely punctate. Elytra oblong-subtriangular, sharply, narrowly striate,

the interstices rather coarsely uniseriate-punctate. Beneath densely punctate. Prosternum sulcate,

tumid in front of each anterior coxa. Femora sulcate along their outer half beneath, the anterior pair

feebly dentate at the apex behind, the intermediate pair somewhat produced at the inner apical angle.

Tibiee sharply unguiculate.

Length 24, breadth 1 millim. (9?)

Hab. Panama, Volcan de Chiriqui (Champion).

One specimen. Less parallel-sided than WV. lobatus and NV. macilentus, the vestiture

rather sparse and uniformly arranged above, the rostrum shorter, the prosternum tumid

in front of each anterior coxa, the elytral interstices more coarsely punctate.

10. Nicentrus lobatus, sp. n. (Tab. XVI. figg. 30, 30a, 2.)

Elongate, narrow, flattened above, piceous; sparsely clothed with small, narrow, brownish-white scales, the

vestiture condensed into three faint vitte on the prothorax, a spot on the scutellum, various streaks on-

the basal portion of the elytra, and a transverse patch on the disc towards the apex; the under surface

densely clothed with whitish scales. Head densely punctate, squamose between the eyes; rostrum

arcuate, moderately stout, about as long as the prothorax, finely lineato-punctate, the antennee inserted

near the middle. Prothorax nearly as long as broad, rounded at the sides anteriorly, feebly constricted

in front; densely, finely punctate. Scutellum rounded. Elytra long, a little wider than the prothorax,

subparallel in their basal half, transversely depressed below the base; finely punctate-striate, the inter-

stives rugulosely punctate, 3 and 5 slightly wider than the others. Beneath densely punctate. Prosternum

sulcate. Anterior cox narrowly separated. Femora sulcate in about their outer third beneath, the

anterior pair dentate at the apex behind, the intermediate pair dentate at the apex in front.

Length 3, breadth 1 millim. (@.)

Hab. Nicaragua, Chontales (Janson).

One specimen, rather worn. In this insect the anterior and intermediate femora

have one of the two lobes at their apex produced into a sharp tooth beneath, as in

many Zygopides.

11. Nicentrus macilentus, sp. n.

Elongate, subparallel, flattened above, nigro-piceous or piceous; above sparsely clothed with narrow whitish

scales, which are condensed into three vittz on the prothorax and a single line down each elytral inter-

stice ; the vestiture of the under surface denser and also white. Head closely punctate ; rostrum (3d)

rather stout, curved, not longer than the prothorax, striato-punctate, (2 ) slender, longer, straighter, and

almost smooth, the antenne inserted at about the middle, the antennal club ovate. Prothorax as long as

NICENTRUS.—ODONTOCORYNUS. 317

broad, rounded at the sides anteriorly, feebly constricted in front; densely punctate, with an incomplete,

smooth, raised, median line. Elytra long, a little wider than the prothorax, subparallel in their basal

half; deeply punctate-striate, the interstices narrow, uniseriate-punctate. Beneath densely punctate.

Prosternum sulcate. First ventral segment sulcate down the middle in the ¢. Legs rather long and

slender ; anterior femora at the apex behind, and the intermediate pair at the apex in front, produced

into a short tooth.

Length 23-3, breadth 3-14 millim. (¢ 2.)

Hab. Guatemaa, San Juan and Sabo in Vera Paz (Champion).

A pair from San Juan and a female from Sabo, A narrow, elongate form, with the

rostrum less curved, longer, smoother, and more slender in the female than in the

male; the elytra subparallel in their basal half, with deeply impressed strize and

Marrow uniseriate-punctate interstices; the anterior and intermediate femora acutely

produced at the tip beneath; the vestiture rather sparse above. Narrower than

N. lobatus, the elytral vestiture not condensed into patches, the strie not so deep, the

interstices more rugose.

ODONTOCORYNUS.

Odontocorynus, Schouherr, Gen. Cure. vii. 1, p. 271 (1844) ; Lacordaire, Gen. Col. vii. p. 228.

Centrinus, subgenus X., Casey, Ann. N. York Acad. Sci. vi. pp. 574, 577.

This genus is sunk by Casey as a section of Centrinus (= Gereus), but it is convenient

to retain the name, the various species belonging to Odontocorynus—ail of which

inhabit Mexico or the United States—having very peculiarly formed antenne in the

male sex. The type, O. creyerus, Boh., and the two species now added, are more

elongate than O. scutellum-album (Say), O. larvatus (Boh.), and their allies, and have

the pygidium completely covered by the elytra. The prosternum of the male is without

tubercles or spines in front of the coxe, but in O. creperus and O. latiscapus there is a

spiniform pencil of hairs between them (as in Pseudorhianus impressus), and in these

species, too, the anterior tarsi are dilated. ‘The Mexican forms may be tabulated thus :—

a. Pygidium completely covered by the elytra: body oblong.

a’. Scutellum albo-squamose, the rest of the vestiture of the upper surface

sparse ; prosternum sulcate and bicarinate. ~

a’, Antennal scape (¢) widened at the apex only. . . . . . «~~ ereperus, Boh.

67, Antennal scape (3) widened from about the middle. . . . . . Jdatiscapus, n. sp.

b'. Scutellum, a median line on the prothorax, and the elytral suture

ochreo-squamose; prosternum hollowed down the middle, not carinate. sutwra-flava, n. sp.

b. Pygidium slightly exposed at the tip: body rhomboid-ovate, the elytra

with closely-set vestiture 2. 2. 6. 2 2. 1 see ee ew eh ) CLarvatus, Boh.

1. Odontocorynus creperus. (‘Tab. XVI. figg. 31, 31a, d, 3.)

3. Odontocorynus creperus, Boh. in Schénh. Gen. Cure. viii. 1, p. 271".

Baris alboscutellatus, Sturm, in litt.”

_g, Antenne with the scape dilated at the apex only (as in the 2), the four outer joints of the funiculus

318 RHYNCHOPHORA.

widened and perfoliate, and the club armed with a sharp tooth atthe base beneath (fig. 316); prothorax

with a small polished tubercle at each anterior angle; prosternum with a spiniform pencil of hairs

between the anterior coxee (sometimes wanting); first ventral segment with a smooth polished space in

the middle, in the centre of which is a compressed ferruginous tubercle ; anterior tibie slightly hollowed

towards the apex within, strongly unguiculate; anterior tarsi dilated, joints 1 and 2 each with a dense

cluster of hairs on the inner edge.

Hab. Mexico! (TLruqui, in Mus. Brit.; ex coll. Sturm ; U.S. Nat. Mus.), Acapulco,

Zapotlan, Morelia, Guadalajara (Hoge), Puebla, Izucar, Parada (Sadlé), Omilteme,

Amula (H. H. Smith).

Not uncommon in Mexico, whence many specimens of each sex have been received.

The sculpture of the upper surface is very variable in this insect, the punctuation of the

prothorax and elytral interstices being sometimes denser and confluent, especially in the

‘males. In the female the rostrum is smoother, the antenne are normally formed, and

the tubercle at the anterior angles of the prothorax is wanting. In one fresh male

from Omilteme the numerous hair-like scales on the first and fifth elytral interstices

are whitish. The scutellum is densely albo-squamose. ‘he elytra are transversely

flattened on the disc before and beyond the middle. The lower side of the femora and

the inner edge of the tibiz are more or less hairy in both sexes. The length varies

from 4-62 mm.

2. Odontocorynus latiscapus, sp.n. (Tab. XVI. fig. 32, ¢, antenna, from

above.) | :

Oblong, black, the anterior tibiz at the apex, and the anterior tarsi in great part, rufo-testaceous ; sparsely

clothed with short, fine, hair-like, brownish or cinereous scales, those on the elytra arranged in two lines

down each interstice, the scutellum albo-squamose ; the vestiture of the under surface and legs rather

coarse, close, and white. Head densely punctate; rostrum moderately stout, curved, a little longer than

the head and prothorax, densely striate-punctate, the scrobes very deep and somewhat sinuous; antenne

inserted at about the apical third of the rostrum, the scape sinuous, flattened and dilated in its outer

half, joints 4-7 of the funiculus perfoliate, strongly dilated, the club armed with a small tooth at

the base beneath. Prothorax densely, confluently punctate, except along the smooth, raised, median line,

and with a small, smooth tubercle at each anterior angle. LElytra oblong-subtriangular, flattened on the

disc before and beyond the middle; narrowly punctate-striate, the interstices roughly punctate. Beneath

densely punctate ; first ventral segment shallowly sulcate down the middle, without trace of tubercle.

Prosternum sulcate, the sulcus limited on each side bya straight ridge, and with a small spiniform pencil

of hairs between the anterior coxe. Anterior tibiz and tarsi as in O. creperus.

Length 32-43, breadth 13-2 millim. (<¢.)

Hab. Mexsco, Cerro de Plumas (Hége), Omilteme and Xucumanatlan in Guerrero

7000-8000 feet (H. H. Smith), Parada (Sallé).

Ten specimens, all males. Though this form has been obtained in two of the same

localities as O. creperus, it’ cannot be included ‘satisfactorily under that species, there

being nothing intermediate amongst the numerous males examined. ‘The species

of Loboderes differ in a similar way. The sinuous, broadly dilated scape of the

antenne and the simply sulcate first ventral segment are characteristic. A female

from Oaxaca (Sal/é), with the vestiture of the upper surface longer and coarser, may

belong here.

ODONTOCORYNUS.—PSEUDOGERAUS. 319

3. Odontocorynus sutura-flava, sp.n. (Tab. XVI. figg. 33, 33, 3.)

Centrinus sutura-flava, Chevr. in litt.

Oblong, black; the prothorax, scutellum, and first elytral interstice with a continuous, dense line of rather

large, ochreous or whitish scales, the entire under surface also densely clothed with broad white or. pale

ochreous scales; the vestiture of the rest of the upper surface brown, very fine, and hair-like, that of the

rostrum and legs yellowish-white or white. Head closely punctate, shallowly foveate between the eyes;

_ rostrum a little longer than the head and prothorax, arcuate—in the ¢ opaque, stout, and striate-punctate,

‘in the 2 shining, more slender throughout, and very sparsely, finely punctate from near the base,—the

antenne inserted at a little behind (9) or far beyond(¢) the middle, the club ovate. Prothorax

broader than long, rounded at the sides anteriorly, constricted and narrow in front; densely, rather

coarsely punctate, the punctures separate one from another. Scntellum transverse, large. Llytra

oblong-subtriangular, narrowly punctate-striate, the interstices densely, roughly punctate. Beneath

densely punctate. Prosternum slightly hollowed down the middle.

é. Antenne with joint 7 of the funiculus dentiform within and the club armed with a short sharp tooth near

the base beneath (fig. 33a); first ventral segment flattened down the middle.

Length 32-44, breadth 13-24 millim. (d Q.)

Hab. Mexico (Dupont and Truqui, in Mus. Brit.), Atlixco (U.S. Nat. Mus.), Puebla

(Sallé), Mexico city (Hége), Tehuantepec (Mus. Brit.).

Five males and seven females. Easily known by the dense, imbricate line of ochreous

scales along the suture of the elytra, this being continued forwards on to the scutellum

and the disc of the prothorax, and the dense, coarse, whitish vestiture of the under

surface. The tooth on the antennal club is acute.

4, Odontocorynus larvatus. (Tab. XVI. figg. 34, 34a, 2.)

2. Centrinus larvatus, Boh. in Schénh. Gen. Cure. viii. 1, p. 218°.

Centrinus (Odontocorynus) larvatus, Casey, Ann. N. York Acad. Sci. vi. p. 577, nota *.

Hab. Mexico !? (coll. Chevrolat).

The type, a female, of this species has been communicated by Dr. Sjéstedt. Itisa

moderately large, robust form, densely albo-squamose beneath, and thickly clothed

above with rather broad whitish scales, those on the elytra (fig. 34 a) arranged in a

closely-packed double or treble series down each interstice and clustered into a dense

patch on the scutellum ; the prothorax is densely punctate, except along the smooth

median line; the elytra are narrowly striate; the prosternum is slightly depressed

down the middle anteriorly ; the mandibles are pointed ; the antennal club is rather

small.

C. larvatus, Boh., is nearly related to the North-American Centrinus scutellum-album

(Say) and C. salebrosus, Casey, both of which are included by Casey in Odontocorynus.

The antennal club is, no doubt, similarly toothed at the base in the male of the

Mexican insect. an

PSEUDOGERALUS, gen. nov.

Rostrum arcuate, stout, moderately long; mandibles curved, notched within, decussate at the tip; antennal

club ovate; prothorax constricted and subtubulate in front, feebly sinuate at the base; scutellum free,

320 ; RHYNCHOPHORA.

subquadrate ; elytra elongate; pygidium not visible ; prosternum unarmed, unimpressed behind the

transverse subapical groove ; anterior coxe large, exserted, separated by about one-third their own width ;

the ascending portion of the mesothoracic epimeron narrow, curved, and somewhat swollen at the tip,

the flanks of the prothorax below the hind angles more or less hollowed for its reception (see fig. 35 a) ;

femora unarmed ; tibie strongly unguiculate; tarsal claws long, divergent; body elongate-rhomboidal,

squamose.

Type, Ps. macropterus.

The single species referred to this genus is not uncommon in Western and

N.-Western Mexico. It is perhaps most nearly related to Centrinogyna, Casey, which,

however, has a large, vertical, and completely exposed pygidium in the male, &c. In the

present genus the ascending portion of the mesothoracic epimera is often tuberculiform,

as seen from above. The curved, decussate mandibles and the relatively elongate elytra

separate Pseudogereus from Gereus.

1. Pseudogerzeus macropterus, sp.n. (Tab. XVI. figg. 35, 354, 3.)

Nigro-piceous or black, the tibia sometimes ferruginous ; thickly clothed with small narrow whitish and

brown scales, the pallid scales mainly condensed along the sides and middle of the prothorax and on the

alternate elytral interstices (these latter with three or four, and the others with two, rows of scales) ;

the vestiture of the under surface close and whitish. Head closely punctate; rostrum stout, strongly

arcuate, slightly longer than the head and prothorax, somewhat compressed at the sides in its basal half,

closely striato-punctate, the apical portion smoother in the 9, the antenne inserted at a little beyond

the middle. Prothorax broader than long, constricted in front. the sides gradually and arcuately con-

verging from the base ; densely, finely punctate, and often with indications of a smooth abbreviated median

line, the narrow interspaces raised into sinuous longitudinal ridges. Elytra gradually narrowing from

the obliquely truncated humeri; narrowly striate, the interstices closely punctate, the alternate ones in

some specimens wider than the others. Beneath densely punctate; first ventral segment broadly

depressed down the middle in the ¢. Anterior tibiz hollowed within and slightly bowed in the ¢.

Length 34-43, breadth 14-21, millim. (¢ 2.)

Hab. Mexico, Ventanas and Milpas in Durango (forrer), Omilteme and Chilpan-

cingo in Guerrero (H. H. Smith).

Twelve specimens from Guerrero and six from Durango. The vestiture of the upper

surface varies in colour, and it is denser in most of the examples from Guerrero, which

are taken as the types, than in those from the other localities.

CENTRINITES.

Centrinites, Casey, Ann. N. York Acad. Sci. vi. pp. 468, 615 (1892).

This genus is based upon a single N.-American species, C. strigicollis, Casey, and

several others. from Mexico and Central America are now added. It mainly differs

from Gerewus (=Centrinus, Casey) in the feebly decussate, curved, slightly notched

mandibles and the coarsely sculptured surface of the body. Three of the new forms

described have the intermediate and posterior tibia more or less thickened, and

dentate just beyond the middle beneath, and the prosternum bispinose, in the male,

CENTRINITES. 321

and one, C. dentimanus, has the anterior tibie armed with a triangular median tooth

in this sex. The species may be grouped thus :—

a, Prosternum bispincse in the ¢.

a', Intermediate and posterior tibi thickened and armed with a sharp tooth

beneathinthe @ . 2. 1. 1 ee ee ee ee te ew ee + Species 1-3,

b'. Intermediate and posterior tibiz without tooth beneath in either sex. . . Species 4.

6. Prosternum unarmed in the 2.

a’. Anterior tibie armed with a triangular tooth inthe ¢ . . . . + . « Species 5.

i}. Anterior tibiz without triangular tooth in either sex* . . . . . . + Species 6,7.

1. Centrinites audax, sp.n. (Tab. XVII. figg. 1, la, b, 3.)

Elliptic, piceous, the antenne (the club excepted) ferruginous ; above sparsely clothed with rather coarse,

intermixed brown and white, decumbent, setiform scales, the vestiture of the under surface coarser,

closer, and wholly white. Head closely punctate, foveate between the eyes; rostrum arcuate, stout,

about as long as the head and prothorax, coarsely striate-punctate and tricarinate, smoother at the tip

in the 9, the antenne inserted at a little beyond the middle, the antennal club ovate. Prothorax

broader than long, with the sides gradually and arcuately converging from near the base, constricted in

front ; rather coarsely, confluently punctate, the narrow interspaces raised into sinuous longitudinal

ridges, the disc subcarinate. Elytra somewhat triangular; deeply punctate-striate, the interstices

coarsely, rugosely punctate. Beneath densely punctate. Prosternum slightly depressed down the

middle. Legs rather stout, rugosely punctate. Anterior cox narrowly separated.

$. Prosternum armed with two short, upwardly curved spines, and with a deep excavation between them ;

first ventral segment depressed down the middle; intermediate (fig. 16) and posterior tibise somewhat

dilated and each armed with a sharp tooth on the lower face beyond the middle.

Length 4-42, breadth 2-2; millim. (d 2).

Hab. Mexico, Pinos Altos in Chihuahua (Buchan-Hepburn), Ventanas in Durango

(Hage).

A pair from Chihuahua and a female from Durango. Larger and more elongate

than Gereus pugnax (Boh.), the vestiture not so fine and denser beneath, the punctures

on the prothorax here and there confluent and separated by raised sinuous lines, the

mandibles decussate, the legs stouter, the intermediate and posterior tibie dentate

beneath and distinctly widened. C. latierus and C. T-flavwm are nearly related forms.

C. audax resembles the N.-American C. strigicollis, but it is larger and has peculiar

male-characters.

9. Gentrinites T-flavum, sp.n. (Tab. XVII. figg. 2, 2a, 6, 3.) |

Subrhomboidal, opaque, nigro-piceous, the antenne, prosternal spines, and tarsi, and sometimes the tibie

also, ferruginous; a common, interrupted, T-shaped mark at the apex of the elytra, the ante-coxal

portion of the prosternum, and a spot on the mesothoracic epimera, thickly clothed with narrow ochreous

scales, the rest of the elytral vestiture sparse and fuscous, with a few pallid scales intermixed, that of

the prothorax ochreous and clustered into three faint vitte, the rest of the under surface sparsely

squamose. Head closely punctate, transversely grooved between the eyes; restrum strongly arcuate,

* (, strigicollis, Casey, belongs to this section.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, September 1908. OTT

322 RHYNCHOPHORA.

stout, considerably longer than the head and prothorax, coarsely punctate and feebly tricarinate, a little

smoother at the tip in the 2, the antenne inserted at about the middle, the antennal club ovate.

Prothorax transverse, constricted in front, the sides more rounded in the @ than in the g; densely,

confluently punctate, the narrow interspaces raised into sinuous longitudinal ruge, the posterior half of

the disc shining in the ¢. Elytra triangular, narrowly punctate-striate, the interstices roughly asperato-

punctate. Beneath coarsely, closely punctate, the propleura obliquely strigose. Anterior coxe narrowly

separated. Legs rather stout, rugosely punctate; tibie strongly unguiculate in the g, more feebly so

in the Q.

¢. Prosternum armed with two long or moderately long porrect spines, and very deeply excavate down the

middle; anterior tibie slightly curved outwards (as in the Q); intermediate (fig. 26) and posterior

tibie dilated on the inner side, and each armed with a short tooth at about one-third from the apex

beneath ; first ventral segment broadly excavate down the middle.

©. Prosternum shallowly sulcate.

Length 24-34, breadth 13-2 millim. (¢ 2.)

Hab. Mexico, Panistlahuaca in Oaxaca (Sallé) ; GuaTemata, Zapote, San Gerdnimo,

Purula (Champion).

Three males and five females. Recognizable by the rugose surface, the common

interrupted, T-shaped, ochreous mark at the apex of the elytra, and the pronounced

sexual characters. The small tooth on the intermediate and posterior tibie of the

male is not visible from above.

3. Centrinites laticrus, sp.n. (Tab. XVII. figg. 3, 3a, 4, ¢-)

Rhomboidal, narrow, nigro-piceous, the tibia and tarsi fusco-ferruginous ; sparsely clothed with narrow, hair-

like, intermixed whitish and fuscous scales, which are arranged in a single series down each elytral

interstice (the second having a double row at the base), the prothorax with scattered, similar, ochraceous

scales; the vestiture of the legs and under surface closer. Head finely punctate; rostrum strongly

arcuate, stout, as long as the head and prothorax, striato-punctate, the antenne inserted at the middle,

the antennal club ovate. Prothorax transverse, conical, constricted in front ; densely, confluently

punctate, and with an indistinct raised median line. Elytra subtriangular, sharply punctate-striate, the

interstices flat and roughly uniseriate-punctate. Beneath closely punctate ; first ventral segment

broadly excavate. Prosternum shallowly sulcate and armed with two small conical tubercles. Anterior

cox narrowly separated. Anterior tibie strongly unguiculate, hollowed on their inner edge from about

the basal third to near the apex ; intermediate tibiw broadly (fig. 30), and the posterior pair moderately,

dilated on the inner side from near the base, both sharply unguiculate at the tip and armed with a

minute tooth on the lower side beyond the middle.

Length 22, breadth 1} millim. (<¢.)

Hab. Guaremata, Purula in Vera Paz (Champion).

One male. Very like C. dentimanus (¢ ), but with the rostrum shorter and not so

stout, the anterior tibia without triangular tooth on the inner edge, the other tibiee

(the intermediate pair especially) broadly widened within and toothed beyond the middle

beneath, the prosternum armed with two conical tubercles. Smaller than C. T-/flavum,

the elytra without definite markings at the apex, the prosternal spines reduced to

conical tubercles, the anterior tibie hollowed within, the intermediate tibie more

dilated. :

CENTRINITES. 323

4. Centrinites dissipatus, sp. n.

Rhomboidal, rather narrow, shining, piceous, the tarsi ferruginous; very sparsely clothed with narrow

ochreous scales, which are intermixed with darker ones on the elytra, the ochreous scales clustered into

a short streak at the apex of the second interstice and becoming more crowded on the front of the

prosternum and on the metathoracic episterna. Head, rostrum, and antenne as in C. T-flavum.

Prothorax transverse, conical, constricted in front ; densely, confluently punctate, the narrow interspaces

oblique and rugiform, Elytra triangular, sharply punctate-striate, the interstices asperato-punctate.

Beneath closely punctate, the propleura obliquely strigose; first ventral segment depressed down the

middle, Prosternum armed in front of each coxa with a short downwardly-directed spine or conical

tubercle, and also deeply sulcate. Anterior tibiee hollowed towards the apex within and with a long

terminal claw, the other tibie also strongly unguiculate.

Length 33-4, breadth 2 millim. (d-)

Hab. Guatemara, Zapote, San Juan in Vera Paz (Champion).

Two males, the one from Zapote (with the longer prosternal spines) being taken as

the type. This insect, at first sight, looks like a worn C. T-flavum, but the prothorax

is subconical, the elytra are shining, and the legs are less rugose; the anterior tibie,

moreover, are hollowed within in the male, and the other tibie are neither dilated

nor toothed in this sex. The decussate mandibles, &c., separate C. dissipatus trom

Gereus tetrastigma and its allies.

5. Centrinites dentimanus, sp.n. (Tab. XVII. fizg. 4, 4a, 6, 3.)

Rhomboidal, narrow, nigro-piceous or piceous; sparsely clothed with rather coarse, narrow, setiform, inter-

mixed whitish and fuscous scales, which are placed in a single series down each elytral interstice, the

prothorax with similar, transversely-arranged, ochreous scales ; the vestiture of the under surface and

legs closer and wholly whitish. Head closely punctate, obsoletely foveate between the eyes; rostrum

very stout, strongly arcuate, longer than the head and prothorax, coarsely punctate and feebly tricarinate,

the antenne inserted at a little beyond the middle, the antennal club ovate. Prothorax transverse,

subconical, constricted in front; densely, confluently punctate, the narrow interspaces oblique and

rugiform. Elytra subtriangular, with the humeri oblique in front and almost in a line with the sides of

the prothorax; sharply punctate-striate, the interstices roughly uniseriate-punctate. Beneath closely

punctate; first ventral segment broadly depressed along the middle and the fifth obsoletely foveate.

Prosternum shallowly sulcate, unarmed. Anterior cox narrowly separated. Anterior tibie (fig. + 5)

armed with a sharp triangular tooth on the inner edge beyond the middle.

Length 24, breadth 12 millim. (¢.)

Hab. Mexico, Teapa (H. H. Smith).

Two males. Distinguishable amongst its allies by the sharply toothed anterior

tibie, the stout, strongly arcuate rostrum, and the intermixed whitish and fuscous,

setiform, uniseriately-arranged elytral vestiture. The only other Central-American

Centrinid with similarly-armed anterior tibie is Gerwus bipustulatus.

6. Centrinites uniseriatus, sp. n.

Elliptic, piceous, the antennx and tarsi ferruginous in one specimen; the elytra clothed with intermixed

ochreous and fuscous, decumbent, setiform scales, which are arranged in a single series along each

interstice, the prothorax with longer hair-like scales ; the vestiture of the under surface fine and rather

sparse. Head closely punctate, transversely grooved between the eyes; rostrum arcuate, considerably

longer than the head and prothorax, slender, thickened and closely punctate at the base, widened and

2TT2

324 RHYNCHOPHORA.

flatter at the tip, the antennex inserted at about the basal third, the antennal club ovate. Prothorax

transverse, rounded at the sides anteriorly, constricted and narrow in front ; densely, finely, confluently

punctate. Elytra rounded-triangular, narrowly punctate-striate, the interstices roughly uniseriate-

punctate. Beneath closely punctate. Prosternum slightly depressed along the middle. Anterior coxe

separated by about their own width.

Length 32-3}, breadth 12-14 millim. (2.)

Hab. Mexico (Hoge, in coll. Solari); Panama, Volcan de Chiriqui (Champion).

Two females. Not unlike C. setipennis, but with the rostrum longer and much

more slender, the antenne inserted towards its base, and the elytra narrowly striate,

with numerous, uniseriately-arranged intermixed fuscous and ochreous, setiform scales,

the humeri less prominent. The elytra are more rounded at the sides than in

C. dissipatus.

7. Centrinites setipennis, sp. n.

Elliptic, piceous, shining ; above sparsely clothed with rather coarse, pale ochreous, hair-like scales, those on

the prothorax transversely arranged, and those on the elytra setiform, semierect, and placed in a regular

line along each interstice ; the punctures of the under surface each bearing a minute hair-like scale, the

legs also with fine hair-like scales. Head finely punctate, transversely grooved between the eyes;

rostrum strongly arcuate, stout, as long as the head and prothorax, striate and coarsely punctate, slightly

smoother in the 9, the antenne inserted at about the middle, the antennal club ovate. Prothorax

transverse, strongly constricted in front, the sides gradually and arcuately converging from the base ;

densely, finely, confluently punctate, and with indications of a raised median line, the narrow inter-

spaces oblique and rugiform. Scutellum transverse, bare. Elytra punctato-sulcate, the interstices

almost flat, the outer ones not wider than the sulci, each with a scattered row of fine setigerous

punctures, the humeri rounded and not prominent. Beneath sparsely, finely punctate, the propleura

obliquely strigose. Prosternum broadly, shallowly sulcate, the groove narrowing auteriorly and limited

on each side by a distinct ridge. Anterior coxe separated by about their own width. Legs rather’

short; tibie strongly unguiculate.

Length 3-33, breadth 14-1,8, millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

Numerous specimens, those with the rostrum a little smoother assumed to be

females, no other sexual mark of distinction being apparent. ‘The rather coarse,

yellowish, setiform scales on the elytra are arranged at regular intervals along each

interstice from base to apex. An isolated form, not unlike Jdiostethus tubulatus

(Lec.), and perhaps not really belonging here.

CENTRINOIDES, gen. nov.

Rostrum stout, arcuate; mandibles strongly decussate, asymmetrical, truncate anteriorly, the left mandible

emarginate externally, the exposed portion of the right mandible small and angulate externally (fig. 5 6) ;

antennal club short-ovate ; prothorax tubulate in front; scutellum transverse, free; elytra with oblique

non-prominent humeri, leaving the upper portion of the mesothoracic epimera visible from above ; pygidium

covered by the elytra ; prosternum strongly bispinose in the g; anterior coxe separated by about their

own width; legs stout, rugose ; tibiew ridged externally ; tarsal claws approximate or subconnate at the

base; body oblong-ovate, coarsely sculptured, with sparse hair-like vestiture.

Type, C. ciliaris.

This genus includes a single species from N.W. Mexico. It is nearly related to

CENTRINOIDES.—PSEUDOCENTRINUS. 325

both Centrinites and Linmobdaris. The form of the mandibles is peculiar: the left

one, which is placed uppermost when they are closed *, is so deeply notched as to

appear bidentate externally, and the right one is small and angulate externally. The

tarsal claws are approximate at the base, Centrinotdes in this respect approaching

Zygobaris, Lec., and its allies.

1. Centrinoides ciliaris, sp.n. (Tab. XVII. figg. 5, 5a, 6, 3.)

Subopaque, black ; sparsely clothed above and beneath with short, very fine, hair-like, cinereous scales, those

on the elytra a little coarser, setiform, and arranged in a single line down each interstice, the tibie

thickly set with short brown hairs at the apex within. Head closely punctate, shallowly foveate between

the eyes; rostrum arcuate, rather stout, about as long as the head and prothorax, coarsely serlate-

punctate, longer, smoother, and a little more slender in the 9, the antenne inserted at about the

middle. Prothorax broader than long, rounded at the sides from near the base, feebly constricted and

much narrowed in front ; coarsely, densely punctate, with indications of a smooth median line. Elytra

gradually narrowing from the base, coarsely punctate-striate, the interstices flat, very little wider than

the strie, and each with a single series of coarse deep punctures. Beneath coarsely, closely punctate.

Legs rugosely punctate.

g. Prosternum armed with two long, or moderately long, porrect spines, which are bent downward at the

tip in fully-developed specimens, and with a very deep circular excavation between them; anterior

tibize closely ciliate within.

@. Prosternum with a broad, shallow, posteriorly evanescent, median sulcus.

Length 43-5, breadth 24-23 millim. (¢ 2.)

Hab. Mexico, Ventanas in Durango (Hége).

Three males and two females, the males varying in the development of the pro-

sternal spines. Easily recognizable amongst its allies by the single series of coarse

punctures down each elytral interstice and the very fine scattered vestiture.

PSEUDOCENTRINUS, gen. nov.

Rostrum stout, arcuate, moderately long; mandibles stout, almost straight on their inner edge; antennal

club ovate; prothorax feebly constricted in front, broader than long; seutellum free; elytra a little

wider than the prothorax, narrowing from the rounded humeri; pygidium large, transverse, convex,

vertical, and fully exposed in the ¢,, not visible in the 2; prosternum unarmed, sulcate ; anterior cox

narrowly separated ; ventral segment 5 transversely tumid in the middle in the 2 and sinuato-truncate

at the apex in the ¢, 3 and 4 very short; femora unarmed ; tarsal claws divergent; body elongate-

or oblong-rhomboidal, squamose.

Type, Centrinus ochraceus, Boh.

This genus is related to Centrinogyna, Casey, which also has a large exposed

pygidium in the male}, but may be known from it by the sulcate prosternum, the

differently-shaped body, &c. The type of Pseudocentrinus is not unlike Gereus

senilis, but the other species have a very different facies. Ps. ochraceus and Ps. hybrida

agree in the relative lengths of the ventral segments ; but the fifth is shorter (especially

in the 2 ) in Ps. deceptus.

* They have been reversed by our artist on the Plate.

+ The female only of one of the two species described by Casey has been examined by me.

326 RHYNCHOPHORA.

1. Pseudocentrinus ochraceus. (Tab. XVII. figg. 6, 6a, ¢; 7,74, 2.)

Centrinus ochraceus, Boh. in Schénh. Gen. Cure, vii. 1, p. 237°.

Hab. Norta America, Cameron Co., Texas.—Mexico! (Zruqui, in Mus. Brit.),

Monterey in Nuevo Leon (Hége), Obrajuelo (ea coll. Flohr), Guanajuato (Sallé).

I have seen numerous examples of this well-marked species from Mexico, including

the type; and Mr. Wickham has sent me one (a male) from Texas, though the insect

has not been previously recorded from outside our limits. It is elongate-rhomboidal

in form, densely squamose above and beneath, the prothorax with two darker vitte

on the disc, the elytra with intermixed darker or fuscous scales, which are here and

there condensed into patches. The rostrum is a little smoother in its apical half in

the female than in the male, and the antenne are inserted at about the middle ia

both sexes. The ventral segments 1-5 are broadly flattened down the centre in the

male. ‘The second joint of the funiculus is as long as 3 and 4 united. The elytra

are flattened on the disc and have rather prominent subapical callosities. The

scutellum is moderately large and subquadrate.

2. Pseudocentrinus hybrida, sp.n. (Tab. XVII. figg. 8, 8a, b, ¢.)

Oblong, subrhomboidal, rather dull, nigro-piceous or black, the tarsi obscure ferruginous ; sparsely clothed

with small, hair-like, brown scales intermixed with a few longer, coarser, whitish or ochreous scales,

these latter arranged in a scattered row along each of the alternate elytral interstices and condensed

into a small spot at the base of the third; the vestiture of the under surface and legs closer and

uniformly cinereous. Head densely punctate; rostrum stout, curved, about as long as the head and

prothorax, closely punctate to the tip, the antenne inserted beyond the middle, joint 2 of the funiculus

short, a little longer than 3. Prothorax transverse, arcuately narrowing from near the base, constricted

and subtubulate in front ; densely, confluently punctate, except along the smooth median line. Scutellum

small, subtriangular. Elytra rather long, gradually narrowing from the rounded humeri; finely and

shallowly punctate-striate, the interstices broad, flat, and densely, rugosely punctate. Beneath densely

punctate; ventral segments 1-5 broadly flattened down the middle, and 5 sinuato-truncate at the apex,

in the g, 5 about as long as 2-4 united. Prosternum narrowly sulcate. Anterior tibie sharply

unguiculate, and slightly curved at the apex, in the ¢.

Length 3;,—-4, breadth 13-2 millim. (¢ @.)

Hab. Muxico, Omilteme in Guerrero 8000 feet (H. H. Smith).

Four males and two females. Smaller, less elongate, and more sparsely squamose

than Ps. ochraceus, the elytra with fine, dark, hair-like scales intermixed with a few

larger, longer, whitish scales, which are arranged in a scattered series along the

alternate interstices, the scutellum small. ‘The present species bears a certain

resemblance to Pseudogerwus macropterus, an insect occurring at the same locality.

3. Pseudocentrinus deceptus, sp. n.

Oblong-rhomboidal, rather convex, shining, black or piceous, the antenne and legs sometimes wholly or in

part ferruginous; sparsely clothed with rather coarse, narrow, setiform, white scales (the elytra in one

specimen with a few brown scales intermixed on the disc below the base), those on the prothorax condensed

into a faint submarginal vitta on each side and those on the elytra arranged in a single line down each

PSEUDOCENTRINUS.—GERAOPSIS. 327

interstice, the lines becoming doubled or trebled at or towards the base; the under surface thickly

clothed with coarse white scales. Head closely punctate, foveate between the eyes; rostrum strongly

arcuate, stout, about as long as the head and prothorax, closely punctate, a little smoother in the @, the

antenne inserted at about the middle. Prothorax transverse, constricted in front, arcuately narrowing

from the base; coarsely, closely punctate, sometimes with a smooth central line. Elytra subtriangular,

punctato-sulcate, the interstices coarsely and roughly uniseriate-punctate. Prosternal sulcus well-

defined, but partly hidden by the vestiture. Beneath densely punctate ; ventral segment 5 slightly longer

than 2. Tibie strongly unguiculate.

3. Ventral segment 1 depressed down the middle and 5 sinuato-truncate at the apex, leaving the vertical

pygidium narrowly visible from beneath. .

@. Ventral segment 5 transversely convex, the pygidium covered by the elytra.

Length 32-4, breadth 13-2 millim. (¢ @.)

Hab. Mexico, Toxpam (Sallé, in Mus. Dresden: 9 ), Chilpancingo and Soledad in

Guerrero (H. H. Smith: 3); GuateMata, near the city (Salvin: ¢ ), Duefias and San

Geronimo (Champion: ¢ ).

Seven specimens, all males but one, varying in the sculpture of the prothorax and

in the colour and amount of the elytral vestiture, the single example from Chilpancingo

having a transverse brown space on the disc of each elytron below the base. ‘The

shorter rostrum, the more approximate anterior cox, the sulcate prosternum, and the

fully-exposed pygidium of the male distinguish the present species from Gereus

gaumeri, for which it might very easily be mistaken. |

GERZOPSIS, gen. nov.

Rostrum stout, arcuate; mandibles decussate, obliquely truncate externally ; antenne inserted beyond the

middle of the rostrum, the club ovate ; prothorax tubulate in front; scutellum free; elytra triangular,

much wider than the prothorax; pygidium not visible; prosternum unarmed, narrowly sulcate from

the apex to between the anterior coxw, the posterior portion very broad, extending backward between

the intermediate coxe, and almost covering the short mesosternum; anterior coxe separated by con-

siderably less than their own width, the two other pairs widely separated; legs short ; femora sublinear,

sulcate along their entire length beneath ; anterior tibie hollowed at the apex externally for the reception

of the first tarsal joint; tarsal claws free ; body rhomboidal, broad, squamose.

Type, G. duplocinctus.

The insect from which the above characters are taken cannot be satisfactorily

referred to any of the other genera of Centrinids here enumerated, even if no value is

placed upon the mandibular structure. One species with sulcate femora (G. arcuati-

rostris) is included under Gerwus, but it has the rostrum, &c., differently formed.

The prosternal structure approaches that of Platyonyx, which, however, has a longer

mesosternum.

1. Gerxopsis duplocinctus, sp.n. (Tab. XVII. figg. 9, 9a, ¢.)

Nigro-piceous or piceous, the antenne and tarsi obscure ferruginous; the prothorax with a large space on

each side at the base, and the elytra with the base and a broader transverse space towards the

apex, the latter extending down the suture to the tip, clothed with small, narrow, ochraceous scales,

the rest of the elytra (a few scattered whitish scales excepted) with black scales, the disc of the

prothorax, the base of the rostrum, the under surface, and legs with scattered ochraceous or whitish

scales. Head opaque, finely punctate, transversely grooved between the eyes; rostrum not longer than

328 RHYNCHOPHORA.

the head and prothorax, rugosely punctate to the tip. Prothorax broader than long, transversely convex,

narrowing from the base, rounded at the sides anteriorly, strongly constricted in front ; densely, finely,

rugulosely punctate, and with indications of a raised median line. Elytra shining, narrowly striate, the

interstices very broad, flat, and densely, finely punctate. Beneath closely, the middle of the metasternum

and abdomen more sparsely, punctate; first ventral segment broadly excavate.

Length 4-43, breadth 23-23 millim. (¢.)

Hab. Mexico (Mus. Brit.) ; Guatemaua, Capetillo (Champion).

Two males, the one from Mexico somewhat abraded. A broad, rhomboidal form,

with a large patch on each side of the prothorax at the base and two broad fascie on

the elytra ochraceous, the rostrum rather short, stout, and rugosely punctate, the

femora and prosternum sulcate, the anterior tibie hollowed at the apex externally.

CESENNIA, gen. nov.

Rostrum arcuate, moderately long; mandibles curved, stout, decussate at the tip; antenne inserted at

about the middle of the rostrum, stout, the scape clavate at the apex, joints 3-7 of the funiculus

strongly transverse, widening outwards, the club ovate; prothorax tubulate in front; scutellum free;

elytra much wider than the prothorax, subtriangular; pygidium not visible; prosternum unarmed,

declivous and broadly depressed down the middle anteriorly, deeply bifoveate in front, the space between

the widely-separated anterior coxe flattened; tibie strongly unguiculate; tarsal claws free; body

rhomboid-ovate, squamose.

Type, C. latecincta.

The single species placed under Cesennia is very like Gerwopsis duplocinctus, but

the general structure is different: the mandibles are curved externally, the prosternum

is deeply bifoveate in front (instead of narrowly sulcate down the middle), the outer

joints of the funiculus are short and stout (though the club is of normal size), the

anterior coxe are very widely separated, and the femora are not sulcate beneath.

1. Cesennia latecincta, sp.n. (Tab. XVII. figg. 10, 10a, 3.)

Nigro-piceous, the antenne, tibia, and tarsi obscure ferruginous; the elytra each with a very broad, common,

arcuate, transverse band of narrow ochreous scales beyond the middle and the rest of their vestiture

almost entirely dark brown; the prothorax, the base of the rostrum, under surface, and legs with

small scattered ochreous or whitish scales. Head closely punctate; rostrum rather longer than the

head and prothorax, much thickened towards the base, flattened and more slender in its apical half,

striate-punctate. Prothorax transverse, strengly rounded at the sides anteriorly, narrow and tubulate

in front; densely, finely, rugulosely punctate. lytra gradually narrowing from the base, finely

punctate-striate, the interstices broad, flat, and densely punctate. Beneath densely, the abdomen

sparsely, punctate. First ventral segment depressed along the middle. Anterior tibie narrow, slightly

hollowed externally.

Length 32, breadth 2 millim. (d.)

Hab. Paxama, Volcan de Chiriqui 4000 feet (Champion).

One male. Narrower than Gerwopsis duplocinctus, the elytra less widened at the

base and each with a single arcuate fascia, the rostrum tapering outwards.

PLATYONYX.—AMERCEDES. 329°

PLATYONYX.

Platyonyx, Schénherr, Cure. Disp. Meth. p. 272 (1826) ; Gen. Col. iii. p. 795; Lacordaire, Gen.

Col. vil. p. 236.

A monotypic Tropical-American genus nearly related to Centrinus, Odontocorynus,

and Gereus, though placed (with Leptoschenus*) in a different group of the

“ Baridiides vrais” by Lacordaire. This author is in error in stating that the fourth

joint of the anterior tarsi is dilated in both sexes: it is a character peculiar to the

male, in which sex the three basal joints of the anterior tarsi are also widened, the

antennal club is elongated, the joints of the funiculus are ciliate within, &c. The

anterior tibial claw is almost obsolete in both sexes; and the mandibles are straight

on their inner edge and pointed at the tip.

The type of Platyonyx, P. ornatus, Boh., is a very conspicuous insect, with a broad

encircling band of rust-red scales round the sides, base, and apex of the prothorax,

and a similarly-coloured transverse post-basal fascia on the elytra.

1. Platyonyx ornatus. (Tab. XVII. figg. 11, lla, 4, 3.)

3. Platyonyx ornatus, Boh. in Schénh. Gen. Cure, iii. p. 795"; vill, 1, p. 270°.

2. Leptoschenus gratiosus, Pasc. in litt.

3. Rostrum stout, closely punctate, the antenne inserted near the apex, the club about as long as joints

2-7 of the funiculus, which are ciliate within; ventral segments 1 and 2 broadly flattened down the

middle ; pygidium almost or quite covered by the elytra; anterior tarsi with joints 1-3 ferruginous and

dilated, joint 4 broadly, subtriangularly widened ; the scales on the under surface of the body white.

Q. Rostrum abruptly curved and more slender, flattened and dilated towards the tip, closely punctate at the

base only, and almost smooth thence to the apex, the antennz inserted at the middle, the club about as

long as joints 5-7 of the funiculus; pygidium exposed at the apex, gradually declivous ; the scales on

the under surface almost wholly rust-red, similar in colour to those above.

Hab. tMexico (coll. Pascoe: 2); Panama (coll. Fry: 3 ).—SoutH AMERICA,

Cayenne !*.

One female and two males, all contained in the British Museum.

AMERCEDES.

Amercedes, Casey, Ann. N. York Acad. Sci. vii. p. 602 (1893).

Zygobaroides, Pierce, Ent. News, xviil. pp. 382, 384 (Nov. 1907).

Mandibles (as seen closed) pointed, toothed at the base above; rostrum rather slender, long, almost straight,

the short basal portion curved and abruptly thickened, at least in the 2, gradually widened in the d

of A. orthorrhinus ; antennse inserted near the base of the rostrum, joint 1 of the funiculus a little shorter

than the scape, 2 very elongate, as long as 3-6 united, the club ovate ; prothorax strongly bisinuate at

the base; scutellum free; elytra subtriangular; pygidium not visible; prosternum very deeply sulcate

throughout, the ridges extending on to the posterior portion and there becoming very prominent ;

mesosternum slightly depressed in the middle; femora stout, more or less sulcate along their outer half

* Leptoschaenus maculatus, Boh., from Cayenne and Brazil, is given as doubtfully Mexican by Lacordaire

(Gen. Col. vii. p. 238).

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, September 1908. 20U

530 RHYNCHOPHORA.

beneath ; tibia unguiculate at the inner apical angle in the J, unarmed in the 9, the intermediate and

posterior pairs widened at the apex externally, the anterior pair bowed inwards ; tarsal claws subconnate

at the base; body rhomboid-ovate, sparsely squamose.

This genus is based upon a single species found on Zanthoaylon * (=Xanthoxylum)

in Louisiana, and occurring also in Texas. The one now added is closely related to

the type, A. sudulirostris, Casey (=Z. schwarzi, Pierce), but has the rostrum dis-

similarly formed in the two sexes. Amercedes is readily distinguishable by the

structure of the prosternum, rostrum, and antenne. The form of the mandibles, as

described by Casey, can only be seen when they are fully opened.

1. Amercedes orthorrhinus, sp. n. (Tab. XVII. figg. 12, 12a, 3; 13, 2.)

Rather convex, black ; clothed above with a few small, hair-like, intermixed dark brown and whitish scales,

which are arranged in a single row down each elytral interstice, the vestiture of the under surface and

legs closer and wholly whitish. Head closely punctate ; rostrum (¢) a little longer than the head and

prothorax, finely striato-punctate, (2 ) more elongate, with the tumid basal portion rugosely punctate

at the sides and the slender straight apical portion almost smooth. Prothorax transverse, somewhat

convex, constricted and much narrowed in front, the sides arcuately converging from the base; coarsely,

closely punctate, sometimes with a smooth median line. Scutellum subtriangular. Elytra at the

shoulders considerably wider than the prothorax, depressed along the suture; deeply punctate-striate,

the interstices. roughly uniseriate-punctate. Beneath closely punctate; first ventral segment slightly

depressed down the middle in the ¢.

Length 35-34, breadth 1?-1,%, millim. (¢ @.)

Hab. GUATEMALA, Duefias (Champion).

One male and three females.

ZY GOBARIS.

Zygobaris, Leconte, Proc. Am. Phil. Soc. xv. p. 317 (1876) (part.) ; Casey, Ann. N. York Acad.

Sci. vi. pp. 469, 663; Pierce, Ent. News, 1907, p. 882.

This genus includes two species from North America, and a third is now added

from our region. They have a very long rostrum (at least in the female), separated

from the head by a transverse sulcus; the prosternum unarmed, the median depression

narrowing forwards, terminating in a fovea in the subapical groove, and limited on

each side by an oblique ridge; the tarsal claws connate at the base; the upper surface

of the body coarsely punctate and sparsely squamose. The type is Z. nitens, Lec.,

from Florida; the other species, Z. xanthoayli, Pierce, has been bred from Zanthoxylon

(Xanthoaylum) berries in Texas f.

1. Zygobaris tristicula, sp.n. (Tab. XVII. figg. 14, 14a, 3.)

Rhomboidal, rather convex, shining, black ; the upper surface with a few scattered, hair-like, decumbent,

white scales, those on the elytra arranged in an incomplete series along the alternate interstices; the

* Biol. Centr.-Am., Botany, i. p. 168.

+ An unnamed Zygobarid from Cameron Co., Texas, sent me by Mr. Wickham, appears to be referable to

this species. Z, nitens I have not seen.

ZYGOBARIS.—CATAPASTINUS. 331

legs and under surface also clothed with scattered white scales. Head almost smooth, with a deep

transverse groove between the eyes; rostrum stout, curved, usually more or less constricted at the base

beneath, in the @ as long as the elytra, in the ¢ a little shorter, in both sexes striate and rather

coarsely punctate to near the tip, the antenne inserted at about the middle in the g and nearer the

base in the 9, the antennal club ovate. Prothorax transverse, arcuately narrowing from the base,

constricted in front; coarsely, densely punctate. Elytra rather short, rounded-triangular, depressed

along the suture at the base; coarsely punctate-striate, the striae narrow, the interstices finely alutaceous

and roughly uniseriate-punctate. Beneath coarsely, the abdomen sparsely and more finely, punctate ;

ventral segment 1 depressed down the middle, and 5 shallowly foveate, in the g. Prosternum shallowly

depressed anteriorly, the depression limited on each side by an oblique ridge and terminating in a fovea

in the subapical groove. Tibiw in the ¢ strongly, in the ? feebly, unguiculate.

Var. Duller, the vestiture more abundant, above and beneath, the elytral interstices each with a row of

hair-like white scales,

Length 21-24, breadth 1,,-12 millim. (3 9.)

Hab. Mexico, Ventanas in Durango, Cordova, Jalapa, Juquila (Hége) ; GUATEMALA,

Cerro Zunil (Champion), Guatemala city (Salvin); Nicaragua, Managua (coll. Solar’).

Sent us in numbers from Mexico; the variety is represented by three specimens from

Ventanas. The rostrum varies in length, but it is always elongate in the female,

and in both sexes the puncturing extends to near the tip. A male from Capetillo,

apparently belonging here, is narrower than the specimens described, and has the

prothorax subconical and the ventral depressions deep. The scattered white scales on

the elytra are smaller than in the North-American species of the genus.

CATAPASTINUS, gen. nov.

Rostrum stout, strongly arcuate, not longer than the head and prothorax, separated from the head by a

transverse groove; mandibles curved, short, decussate; antennal club ovate; prothorax more or less

tubulate in front, the apical portion very short ; scutellum free; elytra much wider than the prothorax,

rounded-triangular, narrowly striate; pygidium not visible; prosternum considerably developed behind

the coxe, unarmed, triangularly excavate, the excavation widening forwards and sometimes shallow,

the transverse subapical groove placed midway between the cox and apex and impressed with two more

or less distinct fovese ; legs short; femora stout, sulcate or not beneath; tarsal claws small, connate

at the base ; body rhomboid-ovate, sparsely squamose.

Type, C. casey?.

The type of this genus is nearly related to both Catapastus and Zygobaris, but

it has the prosternal depression sharply-defined and widening forwards (instead of

backwards), this, however, being indistinct in C. calew and C. alternans, and wanting

the oblique ridge on each side. The rostrum is short, as in Catapastus, and separated

from the head by a transverse groove, as in Zygobaris.

1. Catapastinus caseyi, sp.n. (Tab. XVII. figg. 15, 154, 4, 3.)

Rhomboid-ovate, black; somewhat thickly clothed with small, narrow, blackish or fuscous scales intermixed

with a few longer setiform white scales, the scales on the elytra seriately arranged and the white ones

mostly confined to the alternate interstices; the vestiture of the legs and under surface rather sparse,

fine, and white. Head finely punctate, transversely grooved between the eyes; rostrum very stout,

- abruptly arched from the base, not longer than the head and prothorax, striate and thickly punctate,

smoother at the tip in the 2, the antenne inserted at the middle, the outer joints of the funiculus

2UU 2

302 RHYNCHOPHORA.

strongly transverse, the club short, ovate. Prothorax transverse, arcuately narrowing from the base,

constricted in front; coarsely, densely punctate. Elytra gradually narrowing from the base, broadly

rounded at the apex, somewhat flattened on the disc; narrowly striate, the interstices rugulosely

punctate. Beneath densely punctate. Prosternum with a smooth, bare, flattened, triangular depression,

limited on each side by an oblique ridge, the depression widening forwards and confluent with the sub-

apical fove. Anterior coxe separated by half their own width. Legs rugosely punctate ; intermediate

and posterior femora suleate beneath from near the base to the apex.

Length 22-24, breadth 14-13 millim, (¢ 2.)

Hab. Guatemaa, Capetillo and Guatemala city (Champion); Nicaragua, Managua

(coll. Solari).

Eight specimens from Guatemala and three from Nicaragua. The fine dark

vestiture of the elytra is arranged in one or two rows down each interstice, the

longer white scales being mostly placed along the alternate ones. Less convex than

Zygobaris tristicula, the rostrum short, stout, and abruptly arcuate, the prosternal

sulcus widening forwards to the transverse subapical groove, which is impressed with

two fovee.

2. Catapastinus cales, sp. n.

Khomboid-ovate, moderately shining, black, the antenne ferruginous; sparsely clothed above with minute

cinereous scales, those on the elytra closely placed in a single line along each interstice; the vestiture

of the under surface and legs a little coarser and white. Head finely punctate, transversely grooved

between the eyes; rostrum not longer than the head and prothorax, abruptly curved, rather stout,

thickened and rugosely punctate at the base and for the rest sparsely, finely punctate, the antennz

inserted behind the middle, the antennal club ovate, small. Prothorax transverse, narrowing from the

base, constricted in front; coarsely, densely punctate, except along a narrow smooth median space.

Elytra narrowly striate, the interstices each with a single row of closely-packed coarse shallow

punctures which becomes double at the base. Beneath densely, the abdomen more sparsely, punctate.

Prosternum almost unimpressed behind the transverse groove, which is distant from the apical margin.

Anterior coxe separated by half their own width. Legs rugosely punctate; intermediate and posterior

femora sulcate beneath.

Length 24, breadth 12 millim. (@.)

Hab. Costa Rica, Higuito, Pacific slope (Biolley).

One female, labelled as having been found on Calea avillaris, a Composite plant.

Very like Zygobaris tristicula, but less convex, the rostrum (2) much shorter, more

abruptly curved, and smoother, the head distinctly punctate, the antenne ferruginous

and with a smaller club; the elytra more finely striate, the prosternum almost

unimpressed and with the transverse groove placed much nearer the coxe, &c. The

upper surface is less densely punctate than in C. casey.

3. Catapastinus alternans, sp. n.

thomboid-ovate, broad, flattened above, shining, black; the sides of the prothorax, the under surface, and

legs somewhat thickly clothed with narrow, hair-like, white scales, the elytral interstices 1, 3, 5,7, and 9

each set with a scattered series of adpressed, white, setiform scales (which are clustered into small spots

at the base) intermixed with a few minute pallid scales, the punctures on the other interstices also

bearing minute scales. Head finely punctate, with a deep transverse groove between the eyes ; rostrum

not longer than the head and prothorax, abruptly bowed downwards from the base, rather stout,

CATAPASTINUS.—CATAPASTUS. 333

compressed, rugulosely punctate, and subcarinate, the apical half flattened and striato-punctate.

Prothorax transverse, arcuately narrowing from the base, constricted in front; sparscly, finely punctate,

except along a narrow space down the middle, the punctuation becoming coarser and confluent at the

sides. Scutellum transverse. Elytra considerably wider than the prothorax, narrowing from the

rounded humeri; narrowly punctate-striate, the interstices broad and flat, 2 bi-, and the others uni-,

seriately asperato-punctate. Beneath densely, the abdomen more sparsely, punctate. Prosternum

shallowly sulcate, the groove terminating in a transverse bifoveate depression in front. Anterior

coxee separated by about their own width. Legs rugosely punctate ; femora sulcate at the apex only

beneath; tibicee feebly unguiculate.

Length 3, breadth 14 millim. (2.)

Hab. Mexico, Acapulco (/ége).

One specimen, somewhat worn. A broad, shining black form, with a row of

setiform white scales on each of the alternate elytral interstices, the sides of the

prothorax and the under surface also sparsely clothed with narrow white scales. The

broadly produced portion of the prosternum almost covers the mesosternum.

CATAPASTUS.

Catapastus, Casey, Ann. N. York Acad. Sci. vi. pp. 469, 664 (1892); Pierce, Ent. News, 1907,

p- 382.

Two N.-American species were included under Catapastus by Casey and two others

were subsequently added by Linell. The one now described possesses all the structural

characters of the genus*. These insects are nearly related to Zygobaris, but have

a short stout rostrum. The tarsal claws are small and connate.

1. Catapastus ruficlava, sp.n. (Tab. XVII. figg. 16, 164, 6, ¢ .)

Rhomboidal, narrow, black, the antennal club ferruginous; somewhat thickly clothed with rather coarse,

narrow, whitish scales, the scales on the prothorax long and closely adpressed (fig. 16 6), those on the

elytra arranged in a single line down each interstice, 2 and 3 with two lines on the basal half; the

under surface set with larger white scales, the prosternum densely squamose in the ¢. Head squamose

and densely punctate; rostrum strongly arcuate, very stout, short, in the ¢ scarcely so long as the

head and prothorax and densely punctate and squamose to the tip, in the 2 with the apical halt

bare and somewhat flattened, the antenne inserted at (@) or beyond (¢) the middle, the club ovate.

Prothorax transverse, conical, densely, confluently punctate. Scutellum sparsely squamose. Llytra

subtriangular, finely punctate-striate, the interstices closely punctulate. Beneath densely punctate.

Prosternum excavate down the middle from the transverse subapical groove, the excavation limited on

each side by an oblique ridge to as far as the anterior coxe. Legs short; femora more or less sulcate

beneath.

Length 2-23, breadth 1-145 millim. (d @-)

Hab. Mexico, Ventanas in Durango (Hége); GuaremaLa, Capetiilo (Champion) ;

Nicaragua, Managua (Solari).

Five specimens, three of which are from Guatemala. The vestiture of this insect

is coarser, whiter, and more uniform than in C. conspersus (Lec.), examples of which

have been communicated by Capt. Casey and Mr. Wickham.

* Mr. Wickham has sent me a very similar unnamed form from Brownsville, Texas, and we are indebted

to the Director of the U.S. Nat. Museum for an example of C. signatipennis, Linell, from Florida.

304 RHYNCHOPHORA.

CNAGIUS, gen. nov.

Mandibles curved, slightly decussate at the tip; rostrum. stout, curved, received in repose into the very deep

smooth prosternal sulcus, the walls of which are greatly raised, almost straight, and continued along

the posteriorly-produced portion of the prosternum, the mandibles received into a smooth fovea in the

front of the metasternum ; eyes very large, narrowly separated ; antenne inserted at the middle of the

rostrum, the club ovate; head convex, large; prothorax subconical, constricted in front; scutellum

small, free; elytra subtriangular; pygidium not visible; anterior coxe separated by a little less than

their own width, hollowed within; legs short, femora stout, sulcate along the greater part of their

length beneath, tibie feebly unguiculate, tarsal claws contiguous at the base; body oblong-elliptic,

narrow, polished, sparsely squamose.

Type, C. cavipectus.

The type of this genus has the general facies of Colothus, but the sternal structure

is very like that of Coleomerus, Coleomeropsis, and Amercedes. The rostrum in

repose is received into a very deep, broad, polished groove in the prosternum (the

walls of which are neither sinuous as in Coleomerus, nor converge posteriorly as in

Coleomeropsis), and the mandibles also are received into a fovea in the metasternum.

The head is larger than in Coluthus, and the antenne, rostrum, mandibles, &c. are

differently formed from those of Amercedes. We have here one of those Barids with

the rostral canal of a Cryptorrhynchid.

1. Cnagius cavipectus, sp.n. (Tab. XVII. figg. 17, 17 a, b, 2.)

Shining, black ; clothed above with short, scattered, semierect, blackish, hair-like scales intermixed with a

few coarser, adpressed, elongate, pure white scales, these latter condensed into a short streak at the base

of the suture and an incomplete line along each of the alternate elytral interstices ; the under surface

and legs rather sparsely set with pure white, hair-like scales. Head closely punctate, dull; rostrum

about as long as the head and prothorax, subcarinate and closely striato-punctate, a little longer and

smoother in the 9. Prothorax broader than long, narrowing from the base; pitted with large, deep,

rounded punctures, except along a rather broad smooth median space. Elytra sharply and narrowly

striate, the interstices uniseriate-punctate. Beneath closely punctate; first ventral segment broadly

flattened down the middle, and the fifth slightly depressed in the centre, in the ¢.

Length 31-33, breadth 13 millim. (6 2.)

Hab. Mexico, Teapa (H. H. Smith); British Honpuras, Belize (Blancaneauz).

Two specimens.

COLUTHUS, gen. nov.

Mandibles toothed on their inner edge, decussate ; rostrum curved, very stout, not or very little longer than

the prothorax, the antenne inserted at the apical third or fourth, the antennal club ovate ; head convex,

rather small; prothorax shortly tubulate in front; scutellum small, transverse, free; elytra oblong-

subtriangular, blunt at the apex; pygidium not visible; prosternum deeply sulcate, the sulcus limited on

each side by a sharp ridge, which terminates in a tubercle in front of the coxal cavity ; anterior coxe

large, exserted, narrowly separated, hollowed within, the depression limited above by a short ridge;

femora stout, the intermediate and posterior pairs suleate along their outer half beneath, the anterior

pair excavate at the apex only; tibie strongly unguiculate; tarsal claws free; body elongate-

rhomboidal, flattened and strongly sculptured above, squamose.

Type, C. eribrarius.

The above characters are taken from a single variable species, which is not uncommon

in Guatemala. The prosternal sulcus in this insect is continued between the coxe, and

COLUTHUS.—CCELONERTUS. 339

the ridges terminate in both sexes in a small transverse tuberculiform prominence in

front of each of them, the coxe themselves being also furnished with a short

smooth ridge within, locking-in the rostrum in repose. Coluthus is related to Limno-

baris (as extended by Casey), but it is sufficiently distinguished by the prosternal

structure, &c.

1. Coluthus cribrarius, sp. n. (Tab. XVII. figg. 18, 184, 0, 3.)

Black or piceous, shining ; clothed above with scattered, coarse, oblong, setiform, adpressed, white or yellowish-

white scales intermixed with shorter and smaller, semierect, blackish scales, the vestiture of the elytra

arranged in a single line along each interstice, that on the prothorax clustered along the sides (or at

each hind angle) and down the middle; the under surface (a space on the propleura excepted) densely

clothed with white or yellowish-white scales, the legs and rostrum with similarly-coloured scales. Head

closely punctate ; rostrum closely striato-punctate and squamose to the tip, slightly smoother in the @.

Prothorax a little broader than long, the sides rounded anteriorly and gradually converging or sub-

parallel at the base; the surface pitted with coarse, deep, rounded punctures, except along the smooth

median space. Elytra wider than the prothorax, depressed along the suture at the base; sharply

punctate-striate, the interstices flat and each with an irregular row of rather coarse punctures. Beneath

densely punctate; first ventral segment slightly flattened down the middle in the ¢.

Length 3,3, breadth 13-1? millim. (d @.)

Hab. Mexico, Tapachula in Chiapas (Hége); Bririsn Honpuras, Belize (Blan-

caneaux); GUATEMALA, Las Mercedes, Cahabon, Chiacam (Champion), Coban (Conradt) ;

Panama, David (Champion).

Found in numbers at Chiacam in Vera Paz. The two specimens from Las Mercedes

(in one of which the elytra are tumid on the disc below the base) differ from the

others in having the elytra relatively wider at the shoulders ; and the single example

from David is less elongate, and has smaller and narrower white scales on the elytra.

The Chiacam examples are taken as the types. They were found, I believe, on the

flowers of a Composite plant.

CQELONERTUS.

Celonertus, Solari, Ann. Mus. Genova, xli. p. 441 (1906).

Mandibles short, notched within, rounded externally, decussate at the tip when closed; rostrum short and

stout, curved, received in repose in a very deep prosternal sulcus, the walls of which are greatly raised,

paraliel, and continued obliquely backward between the anterior coxe; antenne inserted at the middle

of the rostrum, the outer joints of the funiculus strongly transverse and nearly as wide as the compa-

ratively small club; prothorax deeply bisinuate at the base ; scutellum very small, free, subquadrate ;

elytra long, subparallel; pygidium not visible; prosternum with the basal process very short; meso-

sternum depressed, exposed; anterior cox narrowly separated, hollowed and strongly carinate within ;

legs short ; femora stout, clavate, sulcate along the greater part of their length beneath, the posterior

pair reaching the second ventral suture; tarsal claws slender, free; body elongate, subcylindrical, rather

convex, squamose.

The definition of this genus was drawn up from the Central-American species

before I had identified the latter with Celonertus nigrirostris, Solari, and it will apply

equally well to his type, C. sguamulosus. ‘The four forms he referred to it, all from

Brazil, may be known by their elongate, subcylindrical shape, and their short legs

336 RHYNCHOPHORA.

and rostrum, the rostrum being received in a very deep parallel-sided cavity in

the prosternum, as in Cnagius. Colonertus, according to Solari, approaches the

‘‘ Nertides” of Lacordaire in its subcylindrical form and visible, depressed meso-

sternum ; it seems to me, however, best placed amongst the ‘“‘ Centrinides” for the

present, near Cnagius and Coluthus.

1. Celonertus nigrirostris. (Cylindrobaris brevirostris, Tab. XVII. figg. 19,

19a, b, 3.)

Colonertus nigrirostris, Solari, Ann. Mus. Genova, xlii. p. 4427.

Black or nigro-piceous; above somewhat thickly clothed with narrow white or whitish scales, the elytra

with a sinuous transverse blackish fascia of variable extent below the base (reaching inward to the

first stria), the vestiture of the prothorax sometimes coarser and more condensed along the sides and

middle in the ¢, that of the elytra arranged in one or two rows (widening to two or three at the base)

down each interstice ; the legs and under surface also albo-squamose, the vestiture becoming denser on the

metathoracic episterna. Head closely punctate, the eyes well-separated ; rostrum in the ¢ very short,

scarcely longer than the head as seen in profile, closely striato-punctate, that of the Q a little longer

and smoother. Prothorax nearly as long as broad, rounded at the sides anteriorly, not or feebly

constricted in front; densely, somewhat coarsely punctate. Elytra moderately long, slightly wider than

the prothorax, conjointly rounded at the apex ; finely punctate-striate, the interstices rugulosely punctate.

Beneath densely punctate.

Var. The transverse dark fascia of the elytra obsolete, the vestiture arranged in a single line down each

interstice ; the punctures on the prothorax each bearing an oval white scale. (¢.)

Length 22-44, breadth 1-1,§, millim. (¢ @.)

flab. British Honpuras, Belize (Blancaneaux); GuatemaLa, La Tinta and Panzos

in Vera Paz (Champion) ; Panama, Volcan de Chiriqui (Champion).—Brazit, Goyaz },

Ten specimens, varying greatly in size and in the extent of the vestiture of the

upper surface, but probably all belonging to one variable species. The variety is

represented by a single very small male: all the forms were found at Belize. ‘The

type has been kindly communicated by Signor Solari for comparison.

BARILEPTON.

Barilepton, Leconte, Proc. Am. Phil. Soc. xv. p. 818 (1876) ; Casey, Ann. N. York Acad. Sci. vi.

pp. 469, 675 (1892).

Casey recognizes four N.-American species of this genus, and the Mexican

representative now recorded is so closely related to one of them that it cannot be

satisfactorily separated. They are very small, cylindrical forms, with a short, stout,

arcuate rostrum, long elytra, and single tarsal claws.

1. Barilepton famelicum. (Tab. XVII. figg. 20, 20a, 3.)

Barilepton famelicum, Casey, Ann. N. York Acad. Sci. vi. pp. 676, 677°.

fab. Nort America, Greely, Colorado 1.—Mex1co, Mexico city (Hége, H. H.

Smith ; Barrett, in U.S. Nat. Mus.).

BARILEPTON.—CHRYASUS. 337

Twelve specimens, varying a good deal in size. These insects agree very nearly

with an example from Greely sent me by Mr. Wickham (but not so well with a

co-type sent me by Casey). They are cupreous or eneous in colour (not black, as

described) ; the vestiture is coarse along the sides of the prothorax and elytra, tending

to form an indefinite white marginal stripe; the prothorax is slightly constricted in

front and about as long as broad; the legs are sometimes in great part rufous; the

rostrum is strongly bent near the base; and the first ventral segment is hollowed

down the middle in the male.

CHRYASUS, gen. nov.

Rostrum stout, arcuate; mandibles short, decussate ; antennal club ovate; prothorax feebly constricted in

front ; scutellum small, free; elytra a little wider than the prothorax, with rounded humeri; pygidium

not visible; prosternum unarmed, with an oval or subtriangular excavation, extending backward between

the cox, sometimes continued forward to the apex; anterior coxe exserted, separated by about half

their own width ; femora each armed with a slender acute tooth, and also obsoletely denticulate towards

the base ; tibie sharply unguiculate ; tarsal claws minute, connate at the base; body rhomboid-ovate or

oblong-rhomboidal, coarsely sculptured, almost bare.

Type, C. cavernosus.

Two small forms are included under Chryasus—one (C. cavernosus) with the

prosternal excavation deep and reaching the apex, the other (C. plagiatus) with the

excavation shallower and not extending beyond the transverse subapical groove.

C. cavernosus has somewhat the facies of Desmoglyptus crenatus (Lec.), which, how-

ever, has a narrow, exposed, vertical pygidium and unarmed femora.

1. Chryasus cavernosus, sp.n. (Tab. XVII. fig. 22, 3.)

Oblong-rhomboidal, narrow, dull, the abdomen shining, piceous, the rostrum, antenne, and legs ferruginous,

almost glabrous. Head closely punctate, transversely depressed between the eyes above, the latter

strongly transverse; rostrum curved, very stout, a little longer than the prothorax, coarsely, closely

punctate, shining and more finely punctured in the 9, the antenne inserted at about the middle, the

antennal club ovate. Prothorax transverse, constricted and narrowed in front; coarsely, confluently

punctate and subcarinate. Elytra wider than the prothorax, narrowing from the rounded humeri, the

disc transversely depressed below the base and beyond the middle; with rows of deep, oblong punctures

piaced in rather broad striz, the interstices alutaceous, flattened, about as wide as the strie. Beneath

_. coarsely and closely, the ventral segments more finely, punctate, the first segment depressed down the

middle in the ¢. Prosternum with a smooth, deep, posteriorly-narrowed, median sulcus which extends

forward to the apex. Femora each with a narrow tooth and obsoletely denticulate thence to the base.

_ Tibiee curved, strongly unguiculate.

Length 22, breadth 14 millim. (¢ @.)

Hab. Nicaracua, Chontales (Janson).

Two specimens. Recognizable by the coarse sculpture of the upper surface, the

uneven elytra, with dull, alutaceous interstices, the distinctly curved tibiew, and the

toothed femora. The punctures on the prothorax are large and confluent.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, September 1908. 2XxX

338 RHYNCHOPHORA.

9. Chryasus plagiatus, sp.n. (Tab. XVII. figg. 21, 21a, 4, ¢.)

Rhomboid-ovate, narrow, flattened above, opaque, black, the elytra each with a broad rufo-testaceous stripe

on the outer part of the disc extending to near the apex, the antenne and tarsi ferruginous, the abdomen

rufous; glabrous above, subglabrous and slightly shining beneath. Head very finely punctate ; rostrum

stout, curved, about as long as the head and prothorax, striato-punctate to the tip, the antenne inserted

at the middle, the antennal club ovate. Prothorax broader than long, subconical, feebly constricted in

front; densely, obliquely strigose, the narrow depressed spaces very finely, confluently punctate. Elytra

narrowing from about the basal third, the obliquely truncated humeri in a line with the sides of the

prothorax; deeply punctato-sulcate, the interstices dull and convex throughout. Beneath closely, the

abdomen more sparsely, punctate. Prosternum subtriangularly depressed down the middle, the

depression not extending beyond the subapical groove. Legs rather elongate; femora sublinear, each

armed beyond the middle with a small acute tooth, the intermediate and posterior pairs also with several

minute denticles nearer the base.

Length 22, breadth 14 millim. (¢?)

Hab. Panama, Bugaba (Champion).

One specimen only of this peculiar little insect has been obtained. The longi-

tudinally strigose prothorax, the convex elytral interstices, the less prominent humeri,

the longer femora, the straighter tibie, &c., distinguish it from C. cavernosus.

DEIPYRUS, gen. nov.

Rostrum very stout, arcuate, moderately long, and separated from the globose head by a deep transverse groove ;

mandibles short, decussate; antenne with an ovate club, the outer joints of the funiculus transverse ;

prothorax feebly constricted in front; scutellum small, flat, subtriangular; elytra a little wider than the

prothorax, with the humeri oblique and not prominent; pygidium not visible ; prosternum unarmed,

with a deep transverse excavation near the apex, limited on each side by a short oblique ridge ; anterior

coxe separated by rather less than their own width; femora unarmed; tarsal claws long, divergent ;

body oblong-elliptic, coarsely sculptured, setose.

Type, D. hirsutulus.

The single species from which the above characters are taken is one of the numerous

isolated Tropical-American forms that seems to require a distinctive generic name.

It approaches Chryasus, Centrinites, and Limnobaris (as extended by Casey), and the

vestiture is like that of Chetobaris.

1. Deipyrus hirsutulus, sp.n. (Tab. XVII. figg. 23, 23 @ *.)

_ Rather narrow, shining, piceous or rufo-piceous; the upper surface and legs somewhat thickly clothed with

long, suberect, fulvous sete, the under surface with scattered decumbent hairs. Head finely alutaceous,

deeply transversely sulcate between the eyes; rostrum about as long as the head and prothorax,

thickly punctate, the antenne inserted at the middle. Prothorax transverse, narrowed and constricted

in front; coarsely, confluently punctate, and sometimes with an indication of a short median carina.

Elytra punctato-sulcate, the interstices about as wide as the strive, becoming a little broader and flatter

towards the suture, each with a scattered row of rather coarse punctures. Beneath coarsely, sparsely

punctate. Legs short; tibie feebly unguiculate.

Length 24-23, breadth 1-14 millim.

Hab. Panama, Bugaba (Champion).

* The insect is narrower than represented on the Plate.

DEIPYRUS.—ZAGLYPTUS. 339

Seven specimens, not exhibiting any perceptible sexual marks of distinction. This

species somewhat resembles Chryasus cavernosus, but it is strongly setose, the femora

are unarmed, the tarsal claws are long and divergent, the head is almost impunctate,

&c. The elytra are sculptured as in Pseudorhianus compressirostris, and the humeri

are rounded externally and oblique in front.

C ALANDRINUS.

Calandrinus, Leconte, Proc. Am. Phil. Soc. xv. p. 8305 (1876) ; Casey, Ann. N. York Acad. Sci. vi.

pp. 468, 617.

Casey refers three species from Colorado and New Mexico to this genus, the type

of which is C. grandicollis, Lec., the latter apparently extending into our region.

The tarsal structure is peculiar, approaching that of Zaglyptus.

1. Calandrinus grandicollis. (Tab. XVIII. figg. 1, 1a.)

Calandrinus grandicollis, Lec. Proc, Am. Phil. Soc. xv. p. 305"; Casey, Ann. N. York Acad. Sci.

vi. pp. 468, 618 ?.

Hab. Norta America }, Colorado 2,—Mexico (Truqui, in Mus, Brit.).

There is a rather worn specimen of this insect in the Fry collection labelled as

from “ Mexico.” An example from Colorado is figured.

ZAGLYPTUS.

Zaglyptus, Leconte, Proc. Am. Phil. Soc. xv. p. 317 (1876); Casey, Ann. N. York Acad. Sci. vi.

pp. 468, 663.

Of this peculiar genus two species are known, and four others are now added from

within our limits, all of them apparently being rare. They are minute, convex,

rhomboidal forms, with the third tarsal joint narrow (and not bilobed) and the body

clothed with very long, scattered, bristly hairs. Zaglyptus (like Microhyus, amongst

the Cryptorrhynchids) extends southward from the United States to Panama. The

four Central-American forms may be grouped thus :—

Rostrum stout, arcuate; elytral interstices narrow, costate ; body ferruginous . costatus.

Rostrum more slender and less curved.

Body black, the elytra rufescent or piceous ; elytral interstices broader than the

strie, feebly convex. «1 ee ee ee te ee ew ew Crispus.

Body ferruginous or testaceous.

Prothorax somewhat coarsely punctate; elytral interstices broad, flattened . carinifer.

Prothorax finely punctate ; elytral interstices narrow, convex . . . « . minutissimus.

2 XX 2

340 RHYNCHOPHORA.

1. Zaglyptus costatus, sp. n. (Tab. XVIL. figg. 24, 24 a.)

Short, rhomboidal, convex, fusco-ferruginous or ferruginous; above clothed with scattered, long, erect, fine,

pallid seta, those on the prothorax intermixed with fine, adpressed, hair-like scales. Head transversely

depressed above the narrowly-separated eyes; rostrum a little longer than the head and prothorax, stout,

arcuate, finely striate, the antenna inserted at about the middle. Prothorax short, conical, strongly

constricted in front; rather coarsely, densely punctate, and with a faint median carina. Elytra trans-

versely convex, subtriangular, parallel at the base; punctato-sulcate, the interstices narrowly costate and

almost smooth. Beneath sparsely punctate.

Length 12-14, breadth 1 millim.

Hab. Guatemaua, San Juan in Vera Paz 2000 feet (Champion), Trece Aguas (Barber

and Schwarz, in U.S. Nat. Mus.).

Two specimens, both from the northern side of the Polochic Valley. Shorter than

Z. sulcatus, Lec., the rostrum shorter, stouter, and more curved, the body almost

entirely ferruginous.

2. Gaglyptus crispus, sp. n. (Tab. XVII. figg. 25, 25a.)

Rhomboidal, shining, nigro-piceous or black, the elytra, antenne, and tarsi piceous or rufescent; above

clothed with long, scattered, suberect, curled, pallid or ochreous sete intermixed with fine, similarly-

coloured, adpressed, hair-like scales. Head faintly foveate between the eyes; rostrum feebly curved,

rather slender, longer than the head and rostrum, striato-punctate, the antenne inserted at about the

middle. Prothorax short, conical, feebly constricted in front; coarsely, closely punctate, with a short

median carina at the base. Elytra rather convex, much wider than the prothorax, subtriangular,

parallel at the base; with rows of coarse, deep punctures placed in narrow strie, the interstices flattened

or convex, broader than the striz, and faintly punctulate. Beneath alutaceous, dull, sparsely punctate, the

ventral segments 3-5 smoother. Prosternum shallowly suleate behind the deep transverse subapical

groove, the basal portion foveate in the middle. Legs slender.

Length 14-2, breadth 1-1, millim. (¢ 2.)

Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith); Guaremata, Totoni-

capam 10,500 feet, Calderas 7000 feet (Champion).

Three specimens, evidently including both sexes, varying in the colour of the elytra

and in the depth of the elytral strie. Less convex than the N.-American Z. sulcatus,

Lec. (for examples of which we are indebted to Mr. Wickham and the U.S. Nat.

Museum), the rostrum longer and not so stout, the elytral interstices flatter, the under

surface less coarsely punctate.

3. Gaglyptus carinifer, sp. n.

Rhomboidal, convex, shining, testaceous ; above clothed with scattered, long, fine, erect, ochreous seta, those

on the prothorax intermixed with fine, adpressed, hair-like scales. Head sparsely, minutely punctate ;

rostrum rather slender, curved, slightly longer than the head and prothorax, finely striato-punctate, the

antenne inserted ata little beyond the middle. Prothorax short, conical,-constricted in front ; somewhat

coarsely, confluently punctate, and carinate down the middle. Elytra with rows of moderately coarse

punctures placed in narrow striw, the interstices almost flat on the disc, convex at the sides, broad,

and faintly punctulate. Beneath sparsely, coarsely punctate, the ventral segments 3-5 smoother.

Prosternum broadly and shallowly sulcate, the transverse subapical groove fine, shallow, and placed close

to the apical margin, the basal portion without fovea. Legs slender,

Length 1,%,, breadth 1,4, millim.

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

ZAGLYPTUS.—PLOCAMUS. 34]

One specimen, somewhat immature. Closely related to Z. crispus; the sete more

erect, the prosternum distinctly sulcate and with a shallower subapical groove, the

median carina of the prothorax longer. Larger and broader than the N.-American

Z. striatus, Lec., the rostrum longer and less curved, the prothorax distinctly carinate,

the elytra with coarser seriate punctures and broader interstices.

4. Zaglyptus minutissimus, sp. n.

Short, rhomboidal, rufo-testaceous, clothed with scattered fine, erect, pallid sete. Head dull, alutaceous ;

rostrum curved, about as long as the head and prothorax, slightly thickened towards the base, dull and

finely striate, smoother and shining at the tip, the antenne inserted at about the middle. Prothorax

short, conical, constricted in front, closely, finely punctate, and with a very fine median carina. Elytra

shining, punctato-sulcate, the interstices convex and very little wider than the striz.

Length 1-14, breadth ?-3 millim.

Hab. Guatemata, Senahu (Champion), Trece Aguas (Schwarz and Barber, in U.S.

Nat. Mus.).

Four specimens, all from Alta Vera Paz, two of them with the prothorax dull and

alutaceous, and the punctures very shallow, this being probably due to immaturity. <A

close ally of the N.-American Z. striatus, Lec., but differing from it in the more curved

rostrum, the smoother, feebly carinate, duller prothorax, the convex elytral interstices,

and the shorter and finer sete. ‘These two insects are amongst the smallest known

Barids.

PLOCAMUS.

Euchetes, Leconte, Proc. Am. Phil. Soc. xv. p. 319 (1876) (nomen preoce.).

Plocamus, Leconte, loc. cit. p. 820 ; Casey, Ann. N. York Acad. Sci. vi. pp. 469, 681 (1892).

Eunyssobia, Casey, loc. cit. pp. 469, 679.

The genera Euchetes and Plocamus were each based upon a single N.-American

form, both of which extend southward into the “ tierra caliente” of Guatemala; but

they cannot be maintained as distinct, the two new species now added forming a

connecting-link between them. Plocamus,as noted by Casey, will probably have to be

referred to a separate group of the Barini, the mandibles and rostrum being peculiarly

shaped; the third tarsal joint is small, and the body is strongly setose, as in Zaglyptus,

near which the genus can be placed for the present. ‘Ihe four species, two of which

possess a somewhat remarkable geographical distribution, may be grouped thus :—

Prothorax uneven, nodose.

Rostrum abruptly thickened towards the base, at least in the ¢.

Upper surface with very long, erect, rigid sete... - + + + ee echidna, Lec.

Upper surface with short, stout, clubbed sete . . . . . . + + + « Clavisetis, sp. n.

Rostrum gradually widened towards the base; upper surface with short, fine,

blunt sete... ee ee es hispidulus, Lec.

Prothorax even; rostrum gradually widened towards the base; upper surface

with very long, erect, rigid sete. 2 6. 6 ee + we ee ee ee hystrix, sp. n.

342 RHYNCHOPHORA.

1. Plocamus echidna. (Tab. XVII. figg. 26, 26 a.)

Euchetes echidna, Lec. Proc. Am. Phil. Soc. xv. p. 320’.

Eunyssobia echidna, Casey, Ann. N. York Acad. Sci. xv. p. 680”.

Hab. Norru America, [linois!, Ohio, Kentucky, and Iowa ?.—GuvaTEMALA, Pantaleon,

Pacific slope (Champion).

The single specimen of this remarkable insect obtained in Guatemala has the large

white scales on the elytra condensed into a transverse patch at the middle of the base,

another at the middle of the sides, an elongate streak on the suture below the base,

and a common X-shaped patch along the suture at the apex. ‘These markings vary

somewhat in extent in the N.-American examples sent me by Capt. Casey, Mr. Wickham,

and the U.S. National Museum. The sete are very long, erect, and rigid in this

insect.

2. Plocamus clavisetis, sp.n. (Tab. XVII. figg. 27, 27a, 2.)

Subelliptic, flattened above, piceous; variegated above with a dense crust of large, adherent, greyish-white,

brown, and blackish scales, the blackish scales on the elytra condensed into a transverse or subtriangular

patch on the inner part of the disc beyond the middle, several patches along the sides, and a few small

scattered spots, the under surface with a uniform whitish crust; the upper surface also set with short,

stout, erect, clubbed, scattered sete, which extend along the thickened basal portion of the rostrum.

Eyes rather small, distant from the anterior margin of the prothorax. Rostrum long, curved, slender,

somewhat abruptly thickened towards the base in the g, more elongate and more gradually widened

basally in the 9. Prothorax transverse, strongly constricted in front; densely punctate, nodose on the

disc and along the sides, the disc also with an obliquely depressed space on each side of the shallow

median channel. LElytra a little wider than the prothorax, depressed along the suture anteriorly ;

punctate-striate, the interstices densely punctulate.

Length 14-23, breadth $-1,, millim. (¢ 9.)

Hab. Guatema.a, Livingston, Trece Aguas (Schwarz and Barber, in U.S. Nat. Mus.),

Chacoj in Alta Vera Paz, Pantaleon (Champion).

Found in abundance at Chacoj (La Hamaca) in the valley of the Polochic, the

specimens varying considerably in size. More flattened than P. echidna, the long

rigid bristles replaced by very short, stout, clubbed sete, the markings of the elytra

very similar to those of P. hispidulus, the rostrum less abruptly widened at the base,

especially in the female. This species, like P. hispidulus and P. hystrix, inhabits the

low hot regions of both the Atlantic and Pacific slopes.

3. Plocamus hispidulus. (Tab. XVII. figg. 28, 28a, ¢.)

Plocamus hispidulus, Lec, Proc. Am. Phil. Soc. xv. p. 8320'; Casey, Ann. N. York Acad. Sci. vi.

p- 682°.

Hab. Nortu America, Southern United States 1, Washington }, Maryland 2, &c.—

GuateMaLa, Livingston (Barber, in U.S. Nat. Mus.), Chacoj in Vera Paz, Zapote

(Champion).

PLOCAMUS.—LIMNOBARIS. 343

Found in numbers at Chacoj in the Polochic Valley, in company with P. clavisetis,

the specimens agreeing perfectly with others before me from the United States.

4. Plocamus hystrix, sp.n. (Tab. XVII. figg. 29, 29 a.)

Subelliptic, nigro-piceous or black, the base and apical margin of the elytra, the legs in part or the tarsi only,

rostrum, and antenne, rufescent or ferruginous; the elytra each with a transverse fascia on the disc

just beyond the middle and one or two small spots near the suture below the base, the prosternum in

front, and the meso- and metathoracic side-pieces clothed with large, imbricate, opalescent, white scales,

the rest of the squamiform vestiture in great part dark and inconspicuous, whitish at the apex of the

elytra, along the middle and sides of the prothorax, and on the front of the head, that on the rostrum

and base of the elytra ochreous, the upper surface also thickly set with very long, erect, dark sete. Eyes

large, narrowly separated. Rostrum about as long as the elytra, arcuate, slender, gradually widened

towards the base, finely striato-punctate, the basal portion rugulose and squamose. Prothorax trans-

verse, evenly rounded at the sides anteriorly, strongly constricted and tubulate in front, densely punctate.

Elytra wider than the prothorax, subtriangular, punctate-striate, the interstices densely punctulate.

Anterior tibize strongly unguiculate.

Length 13-17, breadth 3-3 millim.

Hab. Guaremaa, Zapote, Pacific slope (Champion), Livingston (Barber, in U.S. Nat.

Mus.).

Five specimens, sex not ascertained, the one from Livingston, on the Atlantic coast,

in beautifully fresh condition. Differs from the other species of the genus in the

evenly rounded surface of the prothorax and in having a sharply-defined, opalescent,

white fascia on each elytron. The vestiture is like that of P. echidna, and the rostrum

is shaped as in P. hispidulus.

LIMNOBARIS.

Limnobaris, Bedel, Faune Col. Bassin Seine, vi. p. 183 (1885) ; Casey, Ann. N. York Acad. Sci.

vi. pp. 468, 623.

I follow Casey in including a number of oblong or oval Barids, with strongly

decussate mandibles and completely covered pygidium *, in Limnobaris, the type of

which is the Palearctic L. T-albwm (Linn.). Some of the American forms (such as

L. carbonaria, Fabr.) have very long prosternal spines in the male, and one (L. latidens)

also has the anterior femora armed with a stout blunt tooth in both sexes; others,

again, have the anterior tibize dentate in the male (L. dentifer), or the antennal club

greatly elongated in this sex (L. cylindriciava). L. calandriformis, latidens, aud

quadricollis approach the “ Madarides” in having the broad flattened prosternal

process almost on a level with the metasternum (not, however, covering the meso-

sternum) f, but they are connected with the others by intermediate forms. Baridius

aethiops, funereus, and wratus, Kirsch, belong to Limnobaris as here understood. The

* In a few species with the elytra separately rounded at the apex the extreme tip is visible.

+ The Baris complanata of Dejean’s Catalogue, alluded to by Lacordaire under the genus Lyterius (Gen.

Col. vii. p. 251, nota), is another form of this kind.

344 RHYNCHOPHORA.

genus is represented by a

about the same number of species in North and Central

America; those from our region may be grouped thus *

q. Prosternum bispinose in 3.

a. Anterior femora with a broad blunt tooth in both sexes . . + . + ; Species 1].

1 Anterior femora unarmed.

a. Anterior tibiz without subapical tooth in 2.

a’. Prothorax strongly tubulate in front: species large. - . «© + - Species 2.

b°. Prothorax moderately or feebly constricted in front.

a‘. Body broader, elytra flattened, prosternum bifoveate in ¢, anterior

coxe widely separated. 2. 6 1 ee ee ee ee + + Species 3, 4.

b‘. Body narrower, elytra less depressed, anterior coxe more approxi-

mate .. . toe eee we el el wee) «Species 5-8.

6°. Anterior tibiz with a subapical tooth i ing. ...... +» . Species 9.

6. Prosternum unarmed in ¢.

c'. Antennal club ovate.

c’. Upper surface with a rather sparse uniform vestiture . . . . . . Species 10.

d?. Upper surface with a close uniform vestiture . . . . . . . . « Species 1}.

e°. Upper surface with scattered scales, those on the prothorax sometimes

clustered into lateral vittee, and those on the elytra into transverse

fascie or one or two (interrupted or complete) lines along each

interstice . . Soe ee ee ee ee ee eee ee) Species 12-20.

f°. Upper surface bare . coe tee ee ee ew ew ee ee) «Species 21, 22.

d', Antennal club cylindrical, very elongate woe ee ew we we ee) «Species 23.

1. Limnobaris latidens, sp. n. (Tab. XVII. figg. 31, 3la, ¢.)

Subelliptic, rather broad, flattened above, shining, black, the tarsi, apex of the rostrum, base of the antenne,

and prosternal spines sometimes more or less ferruginous ; the sides of the prothorax with scattered, and

the elytral interstices with seriately-arranged hair-like, yellowish-white scales, those on the elytra

becoming more crowded at the base and sometimes in part infuscate; the under surface and legs also

with minute hair-like scales. Head transversely grooved between the eyes, sparsely, minutely punctate ;

rostrum strongly arcuate, moderately stout, rather longer than the head and prothorax, seriate-punctate,

the basal portion rugose at the sides ; joint 2 of the funiculus longer than 3. Prothorax nearly as wide

as the elytra, broader than long, rounded at the sides anteriorly, narrow and tubulate at the apex, feebly

sinuate at the base, the short median lobe transversely grooved ; coarsely and closely punctate at the

sides, sparsely and finely so on the disc, a narrow space down the middle of the latter impunctate.

Scutellum oblong. Llytra deeply striate, the strie feebly punctate, the interstices flat, rather coarsely

and closely uniseriate-punctate, the rows of punctures becoming double towards the base. Beneath

coarsely and confluently, the ventral segments more finely, punctate. Prosternum with a deep sub-

quadrate cavity in front limited on each side by a longitudinal ridge. Anterior coxe separated by

rather more than their own width. Anterior femora with a stout, blunt, oblique tooth towards the

apex, the others unarmed.

Prosternum in fully-developed examples armed with two short spines, and with a very deep circular

cavity between them.

Length 23-4, breadth 14-2 millim. (¢ @.)

Hab. Guatemata, Teleman and San Gerdnimo in Vera Paz (Champion: 2); Panama,

Bugaba (Champion: ¢), Tabernilla, Canal Zone (Busck, in U.S. Nat. Mus.: ¢ 2 ).

* The male is unknown of LZ. quadricollis and L. uniformis,

LIMNOBARIS. 345

Twelve specimens, one of the males with the prosternal spines almost obsolete.

Easily recognizable by the stout, oblique, blunt tooth on the anterior femora, ‘The

uniseriately-arranged vestiture of the eclytral interstices becomes double towards the

base, and this is particularly noticeable in the male.

9. Limnobaris carbonaria. (Tab. XVII. figg. 30, 30a, 3.)

9. Calandra carbonaria, Fabr. Syst. Eleuth. ii. p. 437°.

9. Centrinus carbonarius, Boh. in Schéuh. Gen. Cure. viii. 1, p. 193 (nec Gen. Cure. ii. p. 748) *.

Oblong-ovate, flattened above, shining, black, the prosternal spines and funiculus sometimes ferruginous; the

elytra with an oblong patch at the base of the second interstice and a narrow line at its apex, an elongate

streak on the fourth interstice beyond the middle, and sometimes some other spots at the base, densely

clothed with hair-like ochreous scales, the rest of the upper surface almost bare, the under surface with

scattered, hair-like, minute, ochreous scales. Rostrum arcuate, stout, not or very little longer than the

prothorax, thickly punctate, the antenne inserted at the middle in both sexes, the antennal club ovate.

-Prothorax nearly as long as broad, rounded at the sides anteriorly, narrow and tubulate in front ;

sparsely, finely punctate, the punctuation becoming denser and closer at the sides and on the flanks, the base

distinctly margined. Scutellum subquadrate. LElytra very little wider than the prothorax, broadly and

conjointly rounded at the apex, the disc transversely depressed at the sides below the base ; sharply striate,

the stria feebly punctate, the interstices flat, sparsely, minutely punctate on the disc, seriato-punctate

at the sides, 6-9 narrowly costate towards the apex. Beneath sparsely punctate. Prosternum flattened

between the anterior cox, which are separated by about their own width. Femora more or less clavate.

3. Prosternum armed with two very long sinuous spines which extend beyond the front of the head (fig. 30 a),

and also with an oblong deep cavity in the middle; anterior tibie sparsely ciliate within.

Length 43-7, breadth 2-375 millim. (¢ 2.)

Hab. Muxico, Toxpam in Vera Cruz (Sallé), Teapa (H. H. Smith); GuatTemaa,

Senahu in Vera Paz (Champion) ; Nicaragua, Chontales (Belt); Panama, Lion Hill

(Busck, in U.S. Nat. Mus.)—Sovrn Amurica!? (Mus. Brit.).

Two males and four females. This insect has the general facies of a Cylindrocerus or

Madarus. The long prosternal spines are similarly formed in the two males received *.

3. Limnobaris calandriformis, sp. n. (Tab. XVII. figg. 52, 32a, ¢.)

Subelliptic, rather broad, flattened above, shining, black, the tarsi, tip of the rostrum, prosternal spines, and

base of the antennee more or less ferruginous; the upper surface almost glabrous, the under surface and

legs with minute whitish hair-like scales, Head transversely sulcate and shallowly foveate between the

eyes, finely punctate; rostrum moderately stout, about as long as the prothorax, striate and thickly

punctate to the tip, tapering and with the apical half smoother in the @ ; joint 2 of the funiculus very

short. Prothorax nearly as wide as the elytra, broader than long, the short anterior portion tubulate ;

coarsely, closely punctate, the punctuation becoming sparser and finer along the middle of the disc.

Scutellum subquadrate. Elytra not much longer than the prothorax, subcordate ; punctato-sulcate, the

interstices flat, uniseriate-punctate, the series becoming double towards the suture. Beneath coarsely and

very closely, the ventral segments more finely, punctate. Anterior coxee widely separated. Femora clavate.

3. Prosternum with two very long sinuous spines and a deep excavation between them (fig. 32a), in unde-

veloped specimens with two short straight spines placed further from the cox and a shallow excavation ;

anterior tibiee finely ciliate on their inner edge, the anterior tarsi also with a few long hairs,

Q. Prosternum flattened, bifoveate in the anterior constriction.

Length 3-4, breadth 12-2 millim. (¢ 9.)

* Our artist has unfortunately drawn (fig. 30a) a male with one of the spines broken off at about one-third

from the base.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, September 1908, QVY

346 RHYNCHOPHORA.

Hab. British Honpvuras, Belize (Blancaneaua: 3 ); GUATEMALA, Panzos (Conradt :

$ 2); Costa Rica, Paso Real (Pittier: ¢), Puerto Limon (Knab, in U.S. Nat.

Mus.: 3 Q).

Seven specimens, the prosternal spines in the three males varying greatly in

development. Very like Z. latidens, but with the upper surface almost bare, the

anterior femora unarmed, the anterior cox widely separated, the scutellum sub-

quadrate, the prosternum of the female bifoveate anteriorly, the second joint of the

funiculus scarcely longer than the third. The extreme tip of the last dorsal segment

is usually visible. The undescribed Baris complanata of Dejean is very like the

present insect.

4, Limnobaris quadricollis, sp. n. (Tab. XVII. figg. 33, 33 a, 2.)

Elongate, flattened above, shining, black, the legs and rostrum piceous, the base of the antennze ferruginous ;

the upper surface almost bare, the under surface and legs sparsely clothed with minute whitish scales.

Head finely punctate, transversely sulcate between the eyes ; rostrum curved, about as long as the pro-

thorax, moderately stout, punctate-striate, the apical half more slender and somewhat closely punctate ;

joint 2 of the funiculus very short, narrower than 3. Prothorax nearly as long as broad, subquadrate,

the sides rounded anteriorly, the anterior lobe narrow ; closely, rather coarsely punctate, except along a

narrow space down the middle. Scutellum subquadrate. Elytra subparallel at the base ; deeply striate,

the striw feebly punctate, the interstices flat, uniseriate-punctate, the second with a double row of

punctures towards the base. Beneath closely punctate, the punctures on the pro-, meso-, and meta-

pleura coarse and confluent. Prosternum flattened, bifoveate in the anterior constriction. Anterior

_ cox distant, separated by more than their own width.

Length 4-44, breadth 17-13 millim. ( 92.)

Hab. Brrrish Honpuras, Belize (Blancaneauxr) ; GuaTEMALA, Panzos (Champion).

Three females. More elongate than L. calandriformis, the prothorax subquadrate

and nearly as long as broad. Broader, less attenuate, and flatter above than the

N.-American L. nasutus *, the prosternum doubtless bispinose in the male, bifoveate

near the apex in the female, as L. calandriformis.

5. Limnobaris confusa.

? Centrinus confusus, Boh. in Schénh. Gen. Cure. iii. p. 740'; Mann. Bull. Mosc. 1843, 2, p. 293°.

Centrinus confusus, Lec. Proc. Am. Phil. Soc. xv. p. 816°.

Limnobaris confusa, Casey, Aun. N. York Acad. vi. pp. 626, 637 *.

Hab. Norts America, Southern and Western States *, Florida! ?4, California 1! 2.—

Mexico (Trugui, in Mus. Brit.: 2), Teapa (1. H. Smith: 3); Costa Rica, Zent and

Banana River (Krab, in U.S. Nat. Mus.: ¢ 2); tPanama (coll. Fry, in Mus. Brit.: ¢ ).

Three males and two females are referred to the species identified as Centrinus

confusus, Boh.f, by Leconte and Casey. One of the males, from Teapa, with short

* LIimnobaris (Bartdius) ethiops, Kirsch, from Peru, the type of which I have seen, is nearly related to

LL. nasutus.

+ Boheman describes C. confusus as having a “semirotundate pygidium,” due probably to the abdomen

being somewhat pulled out.

LIMNOBARIS. | 347

prosternal spines, is very like an unnamed example from New Jersey sent me by

Mr. Wickham, the other, labelled as from ‘“‘ Panama,” having very long spines, much as

in a male from Florida sent me by the U.S. Nat. Museum; the female from “ Mexico ”

has the prothorax more parallel-sided than the one from Costa Rica. They all have

the upper surface finely alutaceous and rather dull, the prothorax closely and finely

punctate, except along the narrow smooth median space, the vestiture sparse and very

fine, and the interstitial puncturing of the elytra close, confused towards the base.

6. Limnobaris evanescens, sp. n.

Oblong-ovate, rather narrow, shining, black, the legs partly or entirely piceous ; the punctures at the sides of

the prothorax and those along the elytral interstices each bearing a minute, hair-like, whitish scale, the

under surface and legs also clothed with similar scales. Head with minute scattered punctures, trans-

versely grooved between the eyes ; rostrum arcuate, about as long as the head and prothorax, in the ¢

thickened towards the base and closely punctate, in the @ smoother, more slender, and subcylindrical ;

antennal club ovate. Prothorax transverse, rounded at the sides anteriorly, narrowed and feebly

constricted in front; closely, coarsely punctate, except along a narrow space down the middle. Scutellum

- subquadrate. Elytra a little wider than the prothorax, narrowing from about the basal third; deeply

striate, the stria feebly punctate, the interstices flat and each with a row of minute scattered punctures.

Beneath closely punctate. Anterior coxse separated by a little less than their own width.

$. Prosternum armed with two short spines or conical tubercles, and with a very deep or shallower circular

excavation between them ; first ventral segment deeply excavate down the middle.

Q. Prosternum shallowly foveate in the middle in front, the intercoxal portion triangular and slightly

hollowed.

Length 23-3, breadth 14-13 millim. (¢ @.)

Hab. Mexico, Cordova, Toxpam (Sallé), Orizaba (Osborn, in U.S. Nat. Mus.; H. H.

Smith), Teapa (H. H. Snmvth); GUATEMALA, Purula, Panima, Tamahu, and Chiacam in

Vera Paz (Champion); Nicaracva, Chontales (Janson); Costa Rica, San José (Knad,

in U.S. Nat. Mus.).

Found in numbers at Purula. The minute, uniseriately-arranged, scattered punctures

of the elytral interstices, the coarsely-punctate prothorax, and the shining upper

surface chiefly distinguish this species. The prosternal spines vary in length, but are

never very long.

7, Limnobaris alutacea, sp. n.

Oblong-ovate, finely alutaceous, rather dull, black, the antenne and tarsi fusco-ferruginous; the under

surface, the sides of the prothorax, and the legs somewhat thickly clothed with small, hair-like, white

scales, the seriate punctures along the elytral interstices also each bearing a very minute white scale.

Head transversely grooved and obsoletely foveate between the eyes; rostrum arcuate, moderately stout,

about as long as the head and prothorax and somewhat thickly punctate in the ¢, a little longer,

smoother, and more slender in the @. Prothorax much broader than long, narrowed and feebly

constricted in front ; coarsely, closely punctate, except along a narrow space down the middle. Elytra

a little wider than the prothorax, subparallel for a short distance below the somewhat prominent

humeri ; punctato-sulcate, the interstices flat and conspicuously uniseriate-punctate from the base to the

apex. Beneath coarsely and densely, the median portion of the ventral segments’ more finely and

sparsely, punctate. Anterior coxee separated by a little less than their own width.

2YY 2

348 RHYNCHOPHORA.

‘3. Prosternum armed with two short spines, and with a shallow excavation between them ; first ventral

segment excavate down the middle.

Length 3-34, breadth 14-13 millim. (¢ 9.)

Hab. Mexico, Mexico city (Hoge).

Four females and one male, the latter with the apex of the abdomen somewhat

dragged out and the pygidium, in consequence, visible*, Longer and duller than

L. evanescens, the elytra more parallel-sided and with the interstices rather coarsely

uniseriate-punctate, the sides of the body beneath more coarsely and more densely

punctate. L. puteifer, Casey, from Indiana, is probably a near ally of the present

insect. -

8. Limnobaris angustata, sp. n.

Oblong-ovate, narrow, somewhat depressed above, black, with a faintly brassy lustre, the antenna, prosternal

spines, knees, and tarsi obscure ferruginous ; the elytral interstices each with a dense line of rather

coarse, hair-like, whitish scales, the sides of the prothorax, legs, and under surface also clothed with

minute similar scales. Head transversely grooved between the eyes ; rostrum about as long as the head

and prothorax, curved, cylindrical, closely punctate, striate at the base, smoother and more slender in

the 2. Prothorax transverse, closely, finely punctate, except along a narrow space down the ntiddle.

Elytra deeply striate, the interstices each with a single row of minute, closely-placed punctures.

Beneath closely punctate. Anterior coxe separated by a little less than their own width.

¢. Prosternum armed with two short spines, and with a deep excavation between them; first ventral

segment depressed down the middle.

Length 23, breadth 1,1, millim. (¢ @.)

Hab. Mexico, Vera Cruz (H. H. Smith).

One pair. Smaller and narrower than L. confusa, the elytra more shining and with

the vestiture coarser. From the N.-American LZ. concinna (Lec.) it may be separated

by its less parallel form and the more closely uniseriately-arranged vestiture of the

elytra.

9. Limnobaris dentifer, sp.n. (Tab. XVIL. figg. 35, 35a, b, ¢.)

Oblong, flattened above, shining, piceous, the rostrum, antenne, prosternal spines, and legs obscure ferruginous ;

the elytral interstices each with a line, becoming double at the base, of fine, hair-like, yellowish-white scales,

the sides of the prothorax, under surface, and legs sparsely clothed with similar scales. Head closely,

very finely punctate, transversely grooved between the eyes; rostrum a little longer than the head and

prothorax, curved, slender, striate, and feebly punctate, the antenne inserted behind the middle, the

club ovate. Prothorax nearly as long as broad, feebly constricted and narrowed in front ; closely

punctate, obsoletely granulate at the sides, the disc without definite smooth median space. Scutellum

trapezoidal. LElytra oblong, very little wider than the prothorax ; deeply striate, the interstices minutely

nniseriate-punctate and somewhat concave. Beneath closely, the inter- and post-coxal portions of the

prosternum sparsely and more coarsely, punctate, the anterior portion of the latter smooth. Prosternum

tumid, unimpressed, armed with two moderately long spines and dilated behind the widely-separated

anterior coxee. Legs rather stout; tibia widening from the base, the anterior pair (fig. 35 5) broad and

* As in Boheman’s type of Cenérinus confusus.

LIMNOBARIS. 349

armed with a minute curved tooth on the lower edge towards the apex, the apical uncus almost obsolete ;

tarsal claws narrowly separated.

Length 3, breadth 14 millim. (<¢.)

Hab, Nicaraava, Chontales (Janson).

- One male. A narrow, oblong, flattened form, with finely seriato-squamose elytra,

tumid, unimpressed, bispinose prosternum, and broad tibiz, the anterior pair armed

with a minute curved tooth on the lower edge towards the apex. J. dentifer is of

about the same size and shape as the N.-American L. tabida, Casey, except that the

elytra are more parallel-sided. The males of various species of Centrinites have a

somewhat similar tooth on the intermediate and posterior tibiz, and that of Platybaris

lamellifer a lamelliform prominence on the anterior tibie; but these insects are not

otherwise very nearly related to Limnobaris.

10. Limnobaris uniformis, sp.n. (Tab. XVII. figg. 34, 34a, 2.)

Centrinus uniformis, Schm. in Mus. Brit.

Elongate-ovate, flattened above, nigro-piceous, the antenne (the club excepted) and tarsi ferruginous ; above

and beneath sparsely clothed with very small, narrow, cinereous scales, the vestiture on the prothorax

confined to a broad space along the sides, that on the elytra arranged in two or three close lines down

each interstice (the first with one line only). Head sparsely, very finely punctate, with a sharply-defined

transverse groove between the eyes; rostrum feebly curved, very slender, about as long as the head and

prothorax, punctured at the base, the antenne inserted at about the middle, the antennal club acuminate-

ovate. Prothorax a little broader than long, constricted in front, the sides rounded anteriorly ; closely,

finely punctate, the punctuation becoming denser at the sides and sparser on the disc. Scutellum bare,

oblong. Elytra long, a little wider than the prothorax, obliquely truncate at the shoulders; sharply,

narrowly striate, the interstices closely punctate. Beneath closely punctate. Prosternum foveate at the

middle of the subapical groove. Anterior coxe separated by about their own width. Tarsi with joint 3

large, the anterior pair with joint 2 strongly transverse.

Length 44, breadth 2 millim. (9.)

Hab. Nicaraaua, Mosquito coast (Mus. Brit.).

One specimen (with the pygidium dragged out), which has stood for many years

under the above-quoted MS. name in the British Museum. It has the upper portion

of the mesothoracic epimera visible from above, the mandibles acutely toothed on their

inner edge, the penultimate tarsal joint largely developed, and the elytral interstices

closely punctate. The long, slender rostrum (@ ), the transversely-grooved head, the

more widely-separated anterior cox, the sparser vestiture of the under surface, &c.,

distinguish Z. wniformis from the nearly-allied L. T-album (L.), of Europe. LL, recti-

rostris (Lec.) is very like L. wniformis, but it has a more coarsely punctured prothorax,

sparsely punctured elytral interstices, and scattered vestiture.

11. Limnobaris languida, sp. n. (Tab. XVII. figg. 86, 36 a, ¢.)

Oblong-ovate, flattened above, rufo-piceous, the antenne and legs ferruginous ; uniformly clothed with small,

narrow, flavo-cinereous scales, which are arranged in two lines down each elytral interstice (the first with

one line only); the vestiture of the under surface closer, fine, and whitish. Head finely punctate ;

rostrum arcuate, about as long as the head and prothorax, moderately stout, closely punctate, and

350 RHYNCHOPHORA.

subcarinate in the ¢$, smoother, more curved, and rather slender in the 2, the antenne inserted near

the middle in the 2 and at about one-third from the apex in the ¢, the outer joints of the funiculus

transverse, the club ovate. Prothorax broader than long, the sides subparallel at the base and rounded

from the middle forwards; closely, finely punctate, with indications of a smooth median line. Scutellum

small, almost bare. Elytra a little wider than the prothorax, finely punctate-striate, the interstices

rugulosely punctured. Beneath closely punctate; first ventral segment obsoletely sulcate in the ¢.

Prosternum unimpressed behind the deep transverse subapical groove. Anterior coxe separated by a

little less than their own width. Legs short ; anterior tibia without visible uncus at the apex ; inter-

mediate and posterior tibie widened at the apex externally,

Length 23-23, breadth 13-11 millim. (¢ @.)

Hab. Mexico, Chilpancingo (1. H. Smith: 3), Toxpam (Sallé: @).

One specimen from each locality. An oblong, somewhat flattened form, with the

vestiture close and rather coarse (above and beneath), the scutellum short and almost

bare, the antenne inserted beyond the middle of the rostrum in the male, the

prosternum and anterior tibie unarmed. A species of doubtful position, but perhaps

best placed in Limnobaris.

12. Limnobaris bicincta, sp.n. (Tab. XVIII. figg. 2*, 2a, 2.)

Oblong, flattened above, moderately shining, black, the antennw and sometimes the legs in part ferruginous ;

the prothorax with a posteriorly-widened vitta on each side, extending down the antericr portion of the

flanks, and the elytra with two interrupted transverse fascia—one basal, curved, the other, oblique, at

about one-third from the apex—thickly clothed with narrow pure white scales; the rostrum, under

surface (a large patch on the propleura excepted), and legs rather sparsely set with small narrow white

scales, these becoming coarser and denser on the metathoracic episterna. Head closely punctate ;

rostrum somewhat bowed from the base, moderately stout, nearly as long as the head and prothorax,

striato-punctate, a little smoother at the tip in the Q, the antennw inserted at () or just beyond (3)

the middle. Prothorax broader than long, gradually narrowing from near the base, feebly constricted in

front; closely punctate, except along the median line, the interspaces alutaceous. Scutellum small,

prominent. LElytra considerably wider than the prothorax, oblong, blunt at the tip, the humeri oblique

and not prominent; sharply striate, the strie feebly punctate, the interstices broad and flat, obsoletely

uniseriate-punctate. Beneath closely punctate; fifth ventral segment slightly hollowed down the middle

in the g. Prosternum not or faintly depressed down the middle. Anterior cox separated by less than

half their own width. Tibial claw arising from near the outer apical angle.

Length 24-33, breadth 1-13 millim. (¢ 2.)

Hab. Mexico, Cordova (Sallé); Guatemaua, Livingston and Trece Aguas (Schwarz

and Barber, in U.S. Nat. Mus.).

Ten specimens, the two from Cordova (?) much larger than the others. This

insect has the aspect of a true Baris, but the pygidium is completely covered by the

elytra. The markings resemble those of Z. bifasciata. The mandibles are small,

notched in their inner edge, and less decussate than in most of the species here placed

under Limnobaris. The upper portion of the mesothoracic epimera is visible from above.

13. Limnobaris bifasciata, sp.n. (Tab. XVIII. fige. 3, 3a, ¢ .)

Oblong-ovate, narrow, flattened above, shining, black, the legs and the tip of the rostrum piceous, the

antenne ferruginous ; a streak on each side of the head between the eyes, a curved band on each side of

* The elytra are narrower and more parallel-sided than shown on the Plate.

LIMNOBARIS., 351

the prothorax, two interrupted fasciz on the elytra (one just below the base, and the other at about one-

third from the apex), and the metathoracic episterna, somewhat thickly clothed with rather coarse, narrow

white scales, the rest of the under surface and the legs with scattered minute white scales. Head

transversely grooved between the eyes; rostrum rather slender, feebly arcuate, barely as long as the

prothorax, finely punctate, smooth along the middle, the antennal club ovate. Prothorax transverse,

rounded at the sides, narrowed and feebly constricted in front ; sparsely punctate on the disc, densely so

along the outer margin. Elytra a little wider than the prothorax, oblong; narrowly striate, the strie

distinctly punctate towards the suture, the interstices broad, flat to near the apex, the bare portions

smooth. Beneath very sparsely and finely, the prosternum closely and coarsely, punctate, the latter

unimpressed. Anterior coxe separated by about their own width, Tarsi with the bilobed penultimate

joint broad and joint 2 of the anterior pair strongly transverse.

Length 3), breadth 14 millim. (@.)

Hab. Panama (coll. Fry, in Mus. Brit.).

One female. The albo-bifasciate elytra and the white-margined, laterally-rounded

prothorax distinguish the present species. It is more shining than L. bicincta, the

prothorax is more rounded at the sides and more sparsely punctate on the disc, the

mandibles are strongly decussate, and the rostrum (@ ) is slender and feebly curved.

14. Limnobaris desidiosa, sp.n. (Tab. XVIII. figg. 4, 4a.)

Oblong-ovate, shining, piceous or rufo-piceous ; above and beneath (the flanks of the prothorax excepted) some-

what sparsely clothed with coarse, narrow, whitish scales, which are condensed on the prothorax into a

broad marginal stripe and on the elytra into a single line down each interstice. Head minutely punctate,

transversely sulcate between the eyes ; rostrum strongly arcuate, about as long as the head and prothorax,

rather stout, sparsely, very finely punctate, the antenne inserted near the middle. Prothorax transverse,

rounded at the sides anteriorly, feebly constricted in front; coarsely, closely punctate, except along the

narrow smooth median space. Scutellum very small, smooth, triangular. Elytra gradually narrowing

from the base, very little wider than the prothorax ; deeply punctate-striate, the interstices about twice

the width of the strie and somewhat coarsely uniseriate-punctate. Beneath closely, coarsely punctate.

Prosternum unimpressed behind the deep transverse subapical groove. Anterior cox separated by a

little less than their own width. Tibi strongly unguiculate.

Length 33-34, breadth 13-13 millim. (2 ?)

Hab. Mexico, Vera Cruz (fége).

Three specimens. ‘The coarse vestiture, the deeply striate elytra with conspicuously

uniseriate-punctate interstices, and the coarsely punctured prothorax, distinguish

L. desidiosa. The mandibles are acutely dentate within.

15. Limnobaris discreta, sp.n. (Tab. XVIII. figg. 5, 5a, 3.)

Oblong-ovate, flattened above, shining, piceous, the legs (and in one specimen the rostrum also) ferruginous ;

the prothorax with a spot at the middle of the base and a marginal stripe on each side, and the elytra in

part (a large, common patch on the disc below the base, and small spot on each of the humeral and sub-

apical callosities, remaining bare), somewhat thickly clothed with oblong whitish scales; the under

surface and rostrum sparsely set with similar scales. Head minutely punctate, transversely grooved

between the eyes; rostrum cylindrical, arcuate, moderately stout, about as long as the head and prothorax,

seriato-punctate, the antenne inserted at (2) ora little beyond ( ¢ ) the middle, the antennal club ovate.

Prothorax broader than long, narrowed and feebly constricted in front, rounded at the sides anteriorly ;

closely punctate, except along a narrow space down the middle and on an oblong space towards the sides.

Scutellum minute, triangular. Elytra barely twice the length of the prothorax, conjointly rounded at

352 RHYNCHOPHORA.

the apex, depressed along the suture at the base; sharply striate, the striz feebly punctate, the interstices

flat, twice as wide as the stris, uniseriate-punctate, the punctures minute or almost obsolete on the

glabrous spaces. Beneath closely, the ventral segments 1-4 rather sparsely, punctate, 1 hollowed down

the middle in the ¢. Prosternum unimpressed. Anterior coxe separated by less than their own width.

Tibiz strongly unguiculate,

Length 23-22, breadth 15-1} millim. (d Q.)

Hab. Mexico, Jalapa (Hége: 3); Panama, Tolé (Champion: 2 ).

In this insect the elytra look as if they were rubbed on the disc, but this is not the

case, the broad bare space, which extends for some distance down the suture posteriorly,

being similarly shaped in the two examples obtained.

16. Limnobaris truquii, sp.n. (Tab. XVIII. figg. 6, 6a, 2.)

Oblong-ovate, flattened above, shining, piceous, the prothorax and elytra at the sides, the tip of the rostrum,

antenne, and legs more or less ferruginous; the prothorax with a spot at the middle of the base and a

broad marginal stripe on each side, and the elytra (a large, common, rounded patch on the anterior part

of the disc excepted), somewhat thickly clothed with coarse, oblong, brownish-white scales, the under

surface and legs rather sparsely clothed with narrow similarly-coloured scales. Head and rostrum as in

L. discreta. Prothorax coarsely, densely punctate, except along the smooth median line. Scutellum

squamose. Elytra deeply punctate-striate, the interstices about as wide as the strie and rather coarsely

uniseriate-punctate throughout. Beneath closely punctate. Prosternum unimpressed.

Length 23, breadth 11 millim. ( 2.)

Hab. Mexico (Truqui, in Mus. Brit.).

One female. Near ZL. discreta, but with the vestiture much coarser, the prothorax

coarsely, densely punctate (except along the median line), the scutellum squamose, the

elytral interstices not wider than the striz and rather coarsely uniseriate-punctate

throughout. Smaller and less elongate than L. desidiosa, the elytral vestiture coarser

and denser at the sides, the interstices narrower.

17. Limnobaris leucostigma, sp. n. |

Elongate, narrow, somewhat flattened above, shining, piceous, the legs fusco-ferruginous; the elytra with a

small spot at the base of each interstice, and a transverse patch at the middle of the disc towards the

apex, clothed with rather coarse, oblong, white scales, the sides of the prothorax, under surface, and legs

more sparsely set with similar scales. Head almost smooth, transversely grooved between the eyes;

rostrum curved, moderately stout, about as long as the prothorax, finely punctate, the antennew inserted

at the middle, the antennal club short-ovate. Prothorax as long as broad, narrowed and feebly

constricted in front, the sides rounded anteriorly and almost parallel behind ; closely, uniformly punctate,

except along the smooth median line. Scutellum very small, narrow. Elytra oblong-oval, very little

wider than the prothorax, conjointly rounded at the apex; sharply punctate-striate, the interstices

broad, flat, very finely uniseriate-punctate, all rugulose at the apex. Beneath closely punctate ; first

ventral segment and the base of the second excavate down the middle. Prosternum unimpressed,

flattened between the anterior coxe, which are separated by rather more than their own width. Legs

rather stout; tibie strongly unguiculate, all somewhat hollowed towards the apex and pilose on their

inner edge.

Length 33, breadth 1} millim. (¢.)

Hab. Muxico, Jalapa (Hége).

LIMNOBARIS. 393

One male, probably somewhat worn. An elongate, narrow form, with the prothorax

about as long as broad and the elytra maculate with white scales across the base and

at the middle of the disc towards the apex.

18. Limnobaris manducator, sp. n.

Elongate-ovate, somewhat convex, narrow, shining, rufescent; clothed with a few long, fine, scattered,

yellowish, hair-like scales, which are clustered into a stripe along the sides of the prothorax and down the

base of each of the elytral interstices. Head sparsely, very minutely punctate, with a deep transverse

groove between the eyes ; rostrum arcuate, nearly as long as the head and prothorax, closely, very finely

punctate, smoother along the middle of the basal half, the antenne inserted midway, the antennal club

short-ovate, stout. Prothorax about as long as broad, feebly constricted in front, the sides rounded

anteriorly and parallel towards the base; finely, closely punctate, except along the narrow, abbreviated,

impunctate, median space. Scutellum small. Elytra oblong, scarcely wider than the prothorax,

depressed along the suture below the base; finely punctate-striate, the interstices each with a row of

minute scattered punctures. Beneath closely, the ventral segments 2-4 more sparsely and finely,

punctate. Prosternum unimpressed behind the deep transverse subapical groove. Anterior coxe

separated by about their own width. Anterior tibiee with a long, the others with a shorter, hook.

Length 23, breadth ;* millim. (7%)

Hab. Mexico, 'Toxpam (Sai/é).

One rather worn specimen, probably a male, though the first ventral segment is

unimpressed. Smaller and smoother than L. lewcostigma, the elytra more finely striate

and immaculate beyond the middle, the vestiture much finer. ‘The mandibles are

acutely dentate within. A somewhat similar unnamed form from Brownsville, ‘Texas,

has been sent me by Mr. Wickham.

19. Limnobaris zneola, sp. n.

Elongate-ovate, narrow, «neous, moderately shining; sparsely clothed above and beneath with short, fine,

hair-like, whitish scales, those on the elytra arranged in a single series down each interstice. Head

transversely grooved between the eyes; rostrum curved, moderately stout, scarcely so long as the

prothorax, and closely punctate—in the @ a little longer, smoother, and more slender,—the antenne

inserted at about the middle. Prothorax slightly broader than long, narrowed and feebly constricted in

front ; rather closely punctate, except along the median line, the interspaces finely alutaceous. Scutellum

narrow. Elytra a little wider than the prothorax, oblong, conjointly rounded at the apex, depressed

along the suture below the base ; finely striate, the strie becoming deeper and distinctly punctate at the

apex, the interstices flat and obsoletely punctulate. Beneath coarsely, the middle of the metasternum

and the abdomen more sparsely and finely, punctate; metasternum at the apex and first ventral segment

hollowed down the middle in the ¢. Prosternum without trace of depression. Anterior coxe rather

narrowly separated. Legs short; femora moderately stout, the tibise and tarsi slender; anterior tibie

strongly unguiculate in the ¢.

Length 13-2, breadth # millim. (d @.)

Hab. Mexico, Motzorongo (U.S. Nat. Mus.: 3), Teapa (4. H. Smith: 3);

GuaTemMALA, Tamahu in Vera Paz (Champion: ¢ @); Panama, Volcan de Chiriqui

(Champion: ¢ ).

Thirteen specimens, nine of which are from Vera Paz. A minute, narrow, eneous

form, clothed with scattered, fine, hair-like, whitish scales, which are seriately arranged

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, September 1908. 227,

304 RHYNCHOPHORA.

on the elytra, without visible pygidium in either sex. In one of the two males from

Chiriqui and the one from Motzorongo the vestiture is as coarse as in L. @raria, but

the ventral depression is similar to that of the same sex of L. eneola. The N.-American

I. concinna (Lec.) is extremely like the present species, differing from it in its larger

size, duller surface, and coarser vestiture.

20. Limnobaris eraria, sp. n.

Very like Z. wneola, but with the vestiture longer and coarser, arranged in a close line along each elytral

interstice; the rostrum slightly longer in both sexes; the elytral strie rather deeper, the first

conspicuously depressed before the middle; the first ventral segment of the g with a broad, shallow,

closely-punctate, pilose depression.

Length 2, breadth 3-59, millim. (do 2.)

Hab. Sauvavor (coll. Solari: 2); Nicaragua, Chontales (Janson: 3 Q ).

Four specimens, the three females narrower than the male, but apparently all

belonging to the same species. From L. concinna (Lec.) the present insect may be

known by its narrower form.

21. Limnobaris pygmea, sp. n.

Oblong-ovate, narrow, moderately shining, black, with a faint brassy lustre, almost glabrous. Head trans-

versely grooved between the eyes; rostrum strongly arcuate, rather stout, a little longer than the

prothorax, closely punctate, in the slightly longer and smoother. Prothorax transverse, rounded at

the sides anteriorly, narrowed and feebly constricted in front ; closely punctate, except along the median

line, Elytra depressed along the suture below the base, finely striate, the strie feebly punctate, the

interstices flat. Prosternum unimpressed behind the transverse subapical groove, the latter shallowly

foveate in the middle in the ¢. Metasternum at the apex and first ventral segment deeply sulcate in

the g, the anterior tibiz strongly unguiculate in this sex.

Length 13-2, breadth 4-3 millim. (do 9.)

Hab. Mexico, Teapa (H. H. Smith); Guaremata, Chiacam and Tamahu in Vera Paz

(Champion), Trece Aguas (Schwarz and Barber, in U.S. Nat. Mus.).

Four males and four females. Darker and more convex than L. eneola and LL. eraria,

the surface almost bare (above and beneath), the rostrum more curved, the ventral

sulcus of the male long and deep. L. pygmea superficially resembles Cerpheres

glabrescens (antea, p. 256), but the latter has a conical prothorax, relatively broader

elytra, a deep prosternal sulcus extending backward between the coxe, &e. Li. (Baridius)

Junerea, Kirsch, from Peru, is extremely like the present species, but it is more elongate,

the prothorax is less transverse and more finely punctate, and the antennal club is

longer.

22. Limnobaris rufula, sp. n. (Tab. XVIII. figg. 7, 7a, ¢ )

5D°*

Oblong-ovate, narrow, shining, rufescent, the head and prothorax piceous; glabrous above, subglabrous

beneath. Head with a few minute punctures, transversely depressed between the eyes; rostrum about

as long as the head and prothorax, curved, cylindrical, rather slender, sparsely, very finely punctate, the

antenng inserted at the middle, the antennal club ovate. Prothorax transverse, narrowed and feebly

LIMNOBARIS.—LIMNOBAROIDES. 359

constricted in front, the sides rounded anteriorly and parallel behind; sparsely, very finely punctate,

except along the median line, the punctures becoming coarser and closer at the sides. Scutellum small,

subquadrate. Elytra rather long, a little wider than the prothorax, subparallel in their basal third, the

apices separately rounded, the humeri somewhat swollen; sharply striate, the strie feebly punctate, the

interstices smooth and flat. Beneath sparsely punctate, the ventral segments 1-4 with a few scattered

punctures only, 1 deeply sulcate, the sulcus extending backward to the middle of 2. Prosternum with a

narrow, shallow sulcus. Anterior coxe separated by a little less than their own width. Femora sparsely

punctate. Anterior and intermediate tibiz with a long, the posterior pair with a shorter, apical uncus,

the uncus on the anterior pair widened towards the base.

Length 23, breadth 1,5, millim. (<¢.)

Hab. Panama, David (Champion).

One male. A small, narrow, glabrous form, with rufescent elytra and legs, the

prothorax comparatively short, the elytra long and subparallel, the anterior tibie (¢ )

armed with a long hook at the apex. L. rufula is very like Buridius longirostris, Kirsch,

from Peru, but the latter has a fully-exposed pygidium, relatively broader elytra, &c.

23. Limnobaris cylindriclava, sp.n. (Tab. XVIII. figg. 8, 8a, 3.)

Oblong-rhomboidal, narrow, flattened above, rather dull, black; the upper surface glabrous, the under surface

and legs with minute, narrow, scattered whitish scales. Head sparsely, finely punctate, foveate between

the eyes; rostrum strongly arcuate, about as long as the head and prothorax, stout, compressed, finely

punctate, the antenne inserted at the middle, the antennal club cylindrical and greatly elongated, solid,

and fully twice the length of the funiculus, joints 3-7 of the latter transverse and closely articulated.

Prothorax nearly as long as broad, gradually narrowing from the base, constricted in front; closely,

coarsely punctate, except along a narrow median space, the interspaces very finely alutaceous. Scutellum

small, transverse. Elytra subtriangular, slightly depressed along the suture; sharply punctate-striate,

the interstices flat, alutaceous, and finely uniseriate-punctate. Beneath coarsely, the ventral segments

more finely, punctate. Prosternum broadly and very shallowly sulcate, the transverse subapical groove

bifoveolate in the middle, and also foveate on each side of this. Anterior coxe separated by a little less

then their own width.

Length 23, breadth 13 millim. (<¢.)

Hab. Paxama, David (Champion).

One specimen. This is one of the few Barids known to me with the antennal club

nearly as long as the scape and funiculus united, and it will probably have to be

separated from Limnobtaris. Gereus longiclava also has a very elongate antennal club

in the male; but in that insect the mandibles are straight and pointed, instead of

being strongly decussate.

LIMNOBAROIDES, gen. nov.

Rostrum arcuate, moderately long; mandibles rounded externally, notched within, slightly decussate at the

tip; antennal club ovate; prothorax feebly constricted in front; scutellum free, subquadrate; elytra

very little wider than the prothorax, somewhat triangular, the humeri broadly rounded, leaving the

upper part of the mesothoracic epimera exposed from above ; pygidium fully exposed, subvertical, and

divided by a transverse suture in ¢ (fig. 9), gradually sloping and entire in Q (fig. 10); prosternum

excavate and usually armed with two long spines in 3, unimpressed in @ ; fifth ventral segment truncate

at the apex in d, rounded in 2; anterior coxse widely separated; femora clavate, unarmed; tarsal

claws long, divergent; body ovate or elliptic, flattened above, sparsely squamose.

Type, ZL. exposita.

2 24 2

356 + RHYNCHOPHORA.

The three closely-allied species referred to this genus are nearly related to Limno-

baris calandriformis and other ‘Tropical-American forms with widely-separated anterior

coxee and bispinose prosternum in the male, from which they differ in having the

pygidium completely exposed in both sexes, and apparently bisegmentate in the male.

Limnobaroides, therefore, is one of those genera with the prosternal structure of the

typical “ Centrinides” and the exposed pygidium of the “ Baridiices vrais.” L. exposita

appears to be a common insect in the “ tierra caliente” of Central America.

1. Limnobaroides exposita, sp.n. (Tab. XVIII. figg. 9, 9a, 6, ¢; 10, 2.)

Ovate, flattened above, shining, black, the base of the antenna, apical half of the rostrum, and the legs often

more or less ferruginous ; sparsely clothed with small, setiform, flavo-cinereous or cinerous scales (which

are usually condensed along the sides of the prothorax and wanting on the disc), the vestiture of the

elytra sometimes blackish, except at the base and along the suture, that of the under surface entirely

cinereous. Head closely punctate; rostrum moderately stout, as long as the head and prothorax,

arcuate, closely punctate, in the 9 with the apical half much smoother and more slender, the

antenne inserted at (¢) or a little behind (Q) the middle. Prothorax broader than long, rounded

at the sides anteriorly, narrowed and feebly constricted in front, closely, coarsely punctate, except

long the smooth median line. Scutellum transverse, Hlytra rounded-triangular, rather short, depressed

along the suture; deeply striate, the striw feebly punctate, the interstices flat and rather coarsely

uniseriate-punctate. Pygidium densely punctate. Prosternum in fully-developed examples armed with

two slender spines, and with a deep fovea in front of them, in the , flattened in the ©. Anterior

coxe separated by rather more than their own width. Ventral segments 1 and 2% flattencd down the

middle, and 5 truncate at the apex, in the ¢.

Length 23-31, breadth 1-13 millim. (¢ @.)

Hab. Mexico, Motzorongo in Vera Cruz (Osborn, in U.S. Nat. Mus.), Temax in

N. Yucatan (Gaumer); Britisu Honpturas (Blancaneaux); Gvatemata, Panzos

(Champion, Conradt); Sauvapor, Sonsonate and Izalco (Knab, in U.S. Nat. Mus.) ;

Nicaragua, Managua (Solari); Cosra Rica, San Carlos, Puerto Limon (U.S. Nat.

Mus.); Panama, Tabernilla, Canal Zone (Buseck, in U.S, Nat. Mus.).

Numerous examples, varying in the colour of the legs and rostrum, and in the

greater or less predominance of the cinereous setiform scales on the elytra, these

being sometimes wholly of that colour. ‘The prothorax is more cuarsely punctate

than in the allied forms. In two of the males (one with the penis extruded) the

prosternal spines are entirely obsolete.

2. Limnobaroides plana, sp. n.

Oblong-elliptic, flattened above, shining, black; sparsely clothed with setiform cinereous scales, which on the

elytral interstices are intermixed with minute darker scales. Head transversely depressed between

the eyes, minutely punctate; rostrum strongly arcuate, long and slender, thickened and closely punctate

at the base, for the rest very finely punctate, the antenne inserted at about the basal third. Prothorax

broader than long, rounded at the sides anteriorly, narrowed and constricted in front; sparsely punctate

except along a narrow median space, the punctuation becoming coarser and closer towards the sides,

Seutellum transverse. Elytra deeply punctate-striate, the interstices flat and uniseriate-punctate

Pygidium sloping, densely, rugosely punctate. Beneath closely punctate. Prosternum unimpressed,

foveolate between the anterior coxe, which are separated by a little more than their own width. :

Length 33, breadth 13 millim. (Q.)

Hab, Panama, Volcan de Chiriqui 3000 feet (Champion).

LIMNOBAROIDES.—PSEUDORTHORIS. 397

One female. Larger, more flattened above, and a little more elongate than

L. exposita, the prothorax sparsely and more finely punctate on the disc, the rostrum

(2) longer, smoother, and more slender, the antenne inserted nearer to its base. The

setiform cinereous scales on the elytra are arranged in a scattered series down each

interstice. From Limnobaris calandriformis, &c., the present species may be readily

distinguished by the long, completely exposed pygidium.

3. Limnobaroides flavolimbata, sp. n. (Tab. XVIII. figg. 11, lla, ¢.)

Elliptic, flattened above, shining, piceous, the rostrum, prothorax, femora, and tibie rufescent, the prosternal

spines testaceous; the sides of the prothorax and the under surface thickly clothed with rather coarse,

hair-like, ochreous scales, the elytra with scattered similar scales intermixed with darker ones along each

interstice (the ochreous scales predominating at the base), the legs sparsely set with fine hair-like yellow

scales. Head thickly punctate; rostrum moderately stout, strongly arcuate, longer than the head and

prothorax, closely and deeply striato-punctate, rugose at the sides towards the base, the antenne inserted

at the middle. Prothorax broader than long, rounded at the sides anteriorly, narrowed and constricted

in front; closely, rather coarsely punctate, except along a narrow smooth space down the middle.

Scutellum trapezoidal, smooth. Elytra rounded-triangular, a little wider than, and less than twice the

length of, the prothorax, depressed along the suture anteriorly; narrowly punctate-striate, the interstices

flat and rather closely uniseriate-punctate. Pygidium subvertical, densely punctate, and with a transverse

suture. Beneath closely punctate; first ventral segment broadly depressed down the middle, the fifth

truncate at the apex. Prosternum armed with two long spines, and with a broad, deep, smooth excavation

extending forward to the apex. Anterior coxs separated by rather more than their own width.

Length 34, breadth 13 millim. (¢.)

Hab. GuatreMaua, Pantaleon, Pacific slope, 1700 feet (Champion).

One specimen, in very fresh condition. Easily recognizable by the rather coarse,

close ochreous vestiture of the under surface and of the sides of the prothorax.

The rostrum is stouter, longer, and more strongly arcuate than in the same sex of

L. exposita.

PSEUDORTHORIS, gen. nov.

Rostrum arcuate, rather slender, moderately long; mandibles short, rounded externally, slightly notched

within, decussate; antennal club small, ovate, pubescent; prothorax transverse, moderately constricted

in front; scutellum small, free; elytra wider than the prothorax, oblong-subtriangular; pygidium long and

. projecting, gradually sloping to the tip and entire in both sexes (fig. 12 6); prosternum unarmed, shallowly

sulcate ; anterior cox narrowly separated ; tarsal claws free ; body oblong-rhomboidal, squamose.

Type, Ps. devexus.

The single species placed in this genus seems to be nearest related to the N.-American

Orthoris * and Rhoptobaris, Lec., from which it differs in the distinctly sulcate pro-

sternum, the small antennal club, the subtriangular elytra, the squamiform vestiture, &c.

The unarmed, shallowly sulcate prosternum and the narrowly separated anterior

coxee separate Pseudorthoris from Limnobaroides, which also has a protuberant

pygidium in both sexes 7. The present genuy may be treated as an osculant form,

* The two members of this genus are said by Pierce to attack different species of Mentzelia (Ent. News,

1907, p. 381).

+ Baris scolopacea, Germ., a Palearctic insect that has been introduced into North America, also approaches

Pseudorthoris ; it cannot be included in Baris as restricted by Casey.

308 RHYNCHOPHORA.

having the general facies of a Centrinid, with the fully-exposed pygidium of the

‘¢ Baridiides vrais.”

1. Pseudorthoris devexus, sp.n. (Tab. XVIIL. figg. 12, 12 a, 6, 2.)

Narrow, somewhat flattened above, black or piceous, the antenne obscure ferruginous ; clothed with very

small, narrow, white and brownish scales, the white scales condensed into a faint median line and a small

spot at each hind angle of the prothorax and a spot on the scutellum, the elytra also with larger white

scales intermixed with the others, which are arranged in one or two lines along each interstice ; the entire

under surface closely albo-squamose. Head very finely punctate, faintly foveate between the eyes;

rostrum arcuate, thickened towards the base, closely punctate, not longer than the head and prothorax in

the 3, the apical portion longer and smoother in the 9, the antenne inserted considerably behind the

middle in the ¢ and at the basal third in the 9. Prothorax transverse, densely, finely punctate.

Elytra gradually narrowing from the base, narrowly striate, the interstices much wider than the striz

and closely, rugulosely punctate. Beneath densely punctate. Prosternal groove almost hidden by the

vestiture. Legs rather slender.

Length 23-23, breadth 1-11 millim. (¢ 2.)

Hab, Mexico, Toxpam in Vera Cruz (Sallé), Teapa (H. H. Smith).

Four males and three females.

ORTHOMERINUS, gen. nov.

Rostrum curved, as long as the elytra, abruptly separated from the head, the scrobes becoming confluent at

some distance from the base beneath; mandibles short, decussate, notched within; head small; antennal

club ovate, the scape not nearly reaching the eyes; prothorax conical, deeply sinuate at the base,

tubulate in front; scutellum small, transverse, free; elytra triangular, with the obliquely truncated

humeri almost in a line with the sides of the prothorax; pygidium not visible; prosternum unarmed,

the anterior portion long, flattened, and declivous, the posterior portion developed into a large, transverse,

flattened protuberance, which is abruptly declivous in front, and sharply bifurcate and completely

covering the mesosternum behind; anterior coxe separated by fully their own width; femora linear,

unarmed ; tarsal claws subconnate at the base; body rhomboidal, flattened above, coarsely sculptured,

clothed with fine scattered vestiture.

Type, O. pittiert.

This genus may be known by the extraordinary development of the posterior portion

of the prosternum, the small head, linear, unarmed femora, &c. Orthomerinus affords

a sort of connecting-link with the ‘‘ Madarides,” the prosternal process being greatly

developed and covering the mesosternum behind; the pygidium, however, is not

visible.

1. Orthomerinus* pittieri, sp.n. (ab. XVIII. figg. 13, 13a, 3 .)

Shining, black, with a faint brassy lustre ; sparsely clothed with minute hair-like scales, those on the under

surface and legs whitish, the others darker and inconspicuous. Head closely punctate, trausversely

grooved between the eyes; rostrum rather stout and compressed, abruptly excavate on each side at the

base beneath, tapering towards the tip, coarsely punctate, the antenne inserted behind the middle.

Prothorax slightly broader than long, conical, constricted in front, the sides a little rounded towards the

base ; coarsely, closely punctate, the interspaces at the sides obliquely rugose. Elytra narrowly, deeply

striate, the interspaces broad, transversely rugose, the outer ones feebly convex. Beneath coarsely, closely

* Since Plate XVIII. was printed, the name Orthomerus has been found to be preoccupied in Reptilia,

hence the change.

ORTHOMERINUS.—GANYMELA. 359

punctate, the prosternum transversely rugose, the subapical groove foveolate; first ventral segment

broadly excavate.

Length 6, breadth 3 millim. (¢.)

Hab. Costa Rica, Guanacaste (Pittier).

One specimen, found in June 1890.

PSEUDORTHOMERIN US, gen. nov.

Rostrum long, strongly arcuate; mandibles short, decussate; antennal club ovate; prothorax conical,

tubulate in front; scutellum very small, rounded, free; elytra triangular, with the obliquely truncated

humeri almost in a line with the sides of the prothorax; pygidium not visible; prosternum unarmed,

declivous, the basal process subquadrate, flattened, partly covering the mesosternum ; anterior coxe very

narrowly separated in the ¢, a little more distant in the ? ; legs moderately elongate; femora unarmed,

clavate, the anterior pair very stout in the ¢, the intermediate and posterior pairs sulcate along their

outer half beneath; tarsal claws subconnate at the base; body rhomboidal, flattened above, coarsely

sculptured, clothed with a fine scattered vestiture beneath.

Type, Ps. consanguineus,

The species from which the above characters are taken is nearly allied to Orthomerinus

pittieri, but differs from it in the non-protuberant prosternum, the clavate, sulcate

femora, &c., the two insects being in other respects very much alike. Pseudorthomerinus

has the compact form of Pachybaris porosa, Lec., but it is less convex beneath, the

limbs are longer, the anterior coxe are narrowly separated, the scutellum is small,

the body rhomboidal, &c.

1. Pseudorthomerinus consanguineus, sp.n. (Tab. XVIII. figg. 14, 144, 3.)

Shining, nigro-piceous or black, with a faint brassy lustre ; almost glabrous above, the punctures on the under

surface and legs each bearing a minute, whitish, hair-like scale, the ante-coxal portion of the prosternum

(¢) thickly clothed with narrow ochraceous scales. Head minutely punctate, transversely grooved between

the eyes; rostrum a little longer than the elytra, stout, striato-punctate, smooth along the middle, in

the @ more slender and more elongate, the antennz inserted at(¢) or behind (2 ) the middle. Prothorax

broader than long, narrowing from the base, the sides slightly rounded anteriorly ; coarsely, closely

punctate. Elytra deeply, narrowly punctate-striate, the interstices broad, closely punctate, becoming

asperate towards the sides and apex. Beneath closely, the ventral segments 2-4 very sparsely, punctate,

5 transversely depressed in the middle behind in the g. ‘ibis strongly unguiculate.

Length 32-4, breadth 2-24; millim. (¢ 9.)

Hab. Mexico, Playa Vicente (Sallé: 9); Guatremata, Mirandilla, Pacific slope

(Champion: ¢ ).

Two males and one female, evidently belonging to the same species, the female

abraded beneath. ‘The elytra are triangular, and more attenuate at the apex than

shown in our (fore-shortened) figure.

GANYMELA.

Ganymela, Pascoe, Ann. & Mag. Nat. Hist. (5) xvii. p. 427 (1886).

A genus based upon a single species from Panama, remarkable amongst the Barids

on account of the serrate femora. ‘The pygidium is not visible, and the anterior coxe

are narrowly separated.

560 RHYNCHOPHORA.

1. Ganymela nitida.

Ganymela nitida, Pasc. Ann. & Mag. Nat. Hist. (5) xvii. p. 4277.

Hab. Panama},

An oblong, robust form, with a subquadrate prothorax, and uneven, oblong elytra.

The unique type is a male, and it has the first ventral segment broadly excavate in the

middle. ‘The locality seems to require confirmation.

Sect. EuToxiDEs.

Madarides vrais, Lacordaire (part.).

Under this section are included the “‘ Madarids ” with the pygidium covered by the

elytra in both sexes—Conoproctus, Madarus, and Dactylocrepis having the pygidium

fully exposed,—the Eutoxides bearing much the same relation to the Madarides as do

the Centrinides to the Barides. ‘The typical genus Eutoaus is remarkable on account

of having the rostrum sometimes greatly elongated in the male, as in Madarus

4-pustulatus, F.*. Calandromimus is a peculiar flattened form with the under surface

very broadly excavate and more or less squamose down the middle in both sexes.

EUTOXUS.

Euioxus, Schénherr, Gen. Cure. viii. 1, p. 108 (1844) ; Lacordaire, Gen. Col. vii. p. 254.

A genus including a few conspicuous Tropical-American forms, four of which occur

in our region. ‘They may be separated thus :—

Rostrum in ¢ straightened towards the base, and often very elongate in this sex,

arcuate in 2.

Prosternumn bispinose near the apex in ; elytra foveate nearapex . . . . foveatus.

Prosternum unarmed in 3; propleura transversely tumid opposite the coxe ;

elytra not foveate . . .. - moe ee ee ee ek . dacordairei.

Rostrum arcuate in both sexes, not greatly elongated in 3.

Hilytra deeply excavate at base. . . - - . « . plicatilis.

Elytra slightly depressed at base . soe ee ee Sraternus

1. Kutoxus foveatus, sp. n. (Tab. XVIIL. fige. 15, 154, b, ¢ ; 16, 2.)

Klongate, subfusiform, robust, nigro-piceous or black, shining; glabrous above, the punctures of the under

surface and legs each bearing a minute whitish scale. Head closely punctate, transversely depressed

between the eyes ; rostrum (¢ ) almost straight in its basal half and curved thence to the apex, moderately

stout, longer than the body, somewhat closely punctate, (@) curved from the base, a little stonter and

scarcely longer than the elytra, the antenne inserted at about the basal third, the scape not feadhing the

eyes in the g, the club small, acuminate-ovate. Prothorax subconical, longer than broad in the re

shorter in the 2, constricted just before the apex, the sides becoming subparallel towards the dee ly

sinuate base, the median lobe long, rounded, and impinging on the scutellum ; closely, finel ane ‘

Elytra elongate-triangular, transversely depressed at the base and deeply foy tl fe vi

: eate on the disc near the

apex; finely punctate-striate, the punctures oblong, the interstices sparsely, minutely punctate, flat

* Incorrectly treated as synonymous with Conoproctus 4-plagiatus, Lac., by Gemminger and Harold

EUTOXUS. 361

somewhat raised at the apex. Beneath sparsely punctate; first ventral segment deeply sulcate, and the

fifth densely punctate and fulvo-pilose, in the ¢. Prosternum in the ¢ becoming tumid in the middle

anteriorly and there armed on each side with an outwardly-projecting, smooth, conical tubercle, arcuate-

emarginate at the base. Anterior tibise ciliate within in both sexes, densely so, and also feebly serrate,

in the ¢. ‘Tarsi hairy and with large penultimate joint in both sexes.

Length 114-124, breadth 44-42 millim. (¢ 2.)

Hab. Panama, Bugaba (Champion).

One male and two females. ‘This insect agrees very nearly with Lacordaire’s

amplified description of EZ. reflexus, Boh., from Brazil; but the male differs from a

specimen of that insect before me in having the rostrum stouter, the prothorax more

elongate and more gradually narrowed forwards, the elytra deeply foveate near the apex

and with the interstices flat for about four-fifths of their length and the punctures in

the strize oblong in shape, and the fifth ventral segment densely pilose.

2. Eutoxus lacordairei, sp. n. (Tab. XVIII. figg. 17, 17a, 3 ; 18, 2.)

Somewhat fusiform, shining, nigro-piceous or black, almost glabrous. Head small, closely punctate, trans-

versely depressed between the eyes; rostrum(¢ ) nearly as long as, or fully two-thirds the length of, the

body, moderately stout, thickened, almost straight, and coarsely punctate in its basal third, the outer

portion arcuate and more sparsely punctured, (Q) arcuate from the base and as long as in the smaller

males, the antenne inserted behind the middle, the scape in the g not nearly reaching the eyes.

Prothorax about as long as broad, the sides parallel for about their basal third and then abruptly and

obliquely convergent to the narrow apex, feebly constricted in front, the median basal lobe long

and nearly covering the scutellum; finely, somewhat closely punctate. Elytra triangular, transversely

excavate at the base; finely punctate-striate, the interstices flat, convex at the apex, with very minute

scattered punctures, which are uniseriately arranged towards the sides. Beneath closely punctate

laterally, sparsely and more finely so down the middle ; first ventral segment flattened along the centre.

Prosternum rather convex, unimpressed behind the foveolate, transverse subapical groove. Propleura

transversely tumid and subcostate opposite the very widely-separated coxe. Anterior tibiz densely

ciliate and crenulate within in the ¢, sparsely ciliate in the Q.

Length 53-74, breadth 2-3 millim. (¢ Q.)

Hab. Panama, Volcan de Chiriqui, Bugaba (Champion).

Three males and one female. Smaller and less elongate than E. foveatus, the

propleura transversely swollen opposite the anterior coxe, the prothorax abruptly and

obliquely narrowed from the parallel-sided basal portion, the elytra not foveate near

the apex. The rostrum of the male varies in length, and it is sometimes not longer

than in the female.

3, Eutoxus plicatilis, sp.n. (Tab. XVIII. figg. 19, 194, ¢.)

Somewhat fusiform, castaneous, shining, glabrous, Head small, finely punctate, transversely depressed between

the eyes; rostrum strongly arcuate, moderately stout, thickened towards the base, in the ¢ more than

half the length of the body and sparsely punctate, in the 2 a little shorter and stouter, more coarsely

punctate, and somewhat gibbous at the base, the antennve inserted far behind the middle, the scape not

reaching the eyes in the Jd, the club acuminate-ovate, small. Prothorax a little broader than long, conical,

constricted in front, the sides becoming subparallel at the base, the base itself deeply sinuate and with a

long median lobe; very sparsely, minutely punctate. Elytra subtriangular, the humeri rounded and

- BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, September 1908, 3AA

RHYNCHOPHORA.

lor)

somewhat swollen, the disc transversely hollowed at the base; finely punctate-striate, the interstices

flat, becoming convex at the apex, each with a scattered row of very minute punctures. Beneath very

sparsely, finely punctate ; first ventral segment excavate down the middle in the g. Prosternum tumid

between the coxe in both sexes, unimpressed anteriorly, the transverse subapical groove longitudinally

foveolate. Legs slender, the femora abruptly clavate; anterior tibiz serrate and closely ciliate within

in the ¢, sparsely ciliate in the Q ; anterior tarsi somewhat hairy in both sexes.

Length 5-53, breadth 21-22 millim. (d Q.)

Hab, Nicaracua, Chontales (elt).

One pair. Smoother than £. lacordairei, the rostrum more slender and strongly

arcuate in both sexes, the prosternum more swollen between the coxe, the propleura

not plicate, the anterior tibiz of the male serrate and more sparsely ciliate, the body

entirely castaneous.

4. Eutoxus fraternus, sp.n. (Tab. XVIII. figg. 20, 20@, o.)

Subfusiform, robust, shining, faintly alutaceous, black, glabrous. Head closely punctate, transversely grooved

between the eyes; rostrum arcuate, moderately stout, a little more than half the length of the body,

slightly thickened at the base, closely punctate, the antenne inserted at about the basal third. Prothorax

nearly as long as broad, subconical, rapidly and arcuately narrowing from about the basal third, the short

tubulate apical portion separated by a distinct ridge, the median basal lobe long ; closely, finely punctate.

Elytra triangular, moderately long, transversely depressed on the disc at the base ; finely punctate-striate,

the interstices flat, convex at the apex, sparsely, very minutely punctate. Beneath sparsely punctate ;

first ventral segment depressed down the middle, the fifth with a deep transverse fovea at the apex.

Prosternum unimpressed, flattened between the very widely-separated anterior cox. Anterior tibiae

sparsely ciliate within. Third tarsal joint moderately large.

Length 72, breadth 31 millim. (¢.)

Hab. Panama, Bugaba (Champion).

One male. Smaller and less elongate than the same sex of E. foveatus, with a

comparatively slender, arcuate, much shorter rostrum, the legs shorter, the tarsi less

dilated, the elytra without subapical fovea, the fifth ventral segment deeply foveate.

More robust and less shining than E. lacordairei, the prothorax more rounded at the

sides, and with a sharply-defined “neck” in front, the elytra less excavate at the

base, &c. The male-characters are less pronounced than in the allied forms, and the

insect described at first sight appears to be a female.

PSEUDEUTOXUS, gen. nov.

Rostrum very slender, flattened, arcuate and much longer than the body in the 2, feebly curved and about

as long as the elytra in the ¢, the scrobes lateral and very shallow, the antenne inserted at about the

middle in the g and at the basal third in the Q, the scape not reaching the eyes, the joints of the

funiculus obconic, the club acuminate-ovate ; mandibles abruptly dilated at the base externally in the 9,

obsoletely so in the g, the basal portion in the ? crescentiform above (fig. 22a)*; prothorax abruptly

tubulate in front and with the basal median lobe short ; scutellum free, small, trausverse, emarginate

behind; elytra oblong-triangular ; pygidium not visible; prosternum unimpressed anteriorly, the broad

* The crescentiform piece (of which there is no trace in the S), at first sight, appears to be attached to

the apex of the rostrum ; but, so far as I can ascertain without dissection, it is really part of the mandible.

PSEUDEUTOXUS.—CALANDROMIMUS., 363

basal portion moderately developed and almost covering the flattened mososternum ; anterior coxze

separated by about their own width in the ¢, more distant in the 2; legs long and slender; femora

clavate; body elongate-rhomboidal, polished, almost glabrous above, the tibia and tarsi more or

less pilose.

Type, Ps. filirostris,

This genus includes a single species from Costa Rica, with remarkable sexual

distinctions. The very slender, long, flattened rostrum, with shallow, laterally-placed

scrobes, the peculiarly-formed mandibles of the female, the short basal lobe of the

prothorax, and the free scutellum, separate Pseudeutorus at once from Eutoxus. In

the present genus, too, the female has an extremely elongate rostrum, it being more

than twice as long as in the male—a character to be found in various Balantne.

1. Pseudeutoxus filirostris, sp. n. (Tab. XVIII. figg. 21, 2la,¢; 22,

22 a, 2.)

Shining, black; clothed with scattered, fine, golden hairs beneath, these being long and conspicuous on the

under side and flanks of the prothorax. Head finely punctate, foveate and transversely grooved between

the eyes; rostrum shallowly grooved down the middle and finely punctate in the ¢, smooth and unim-

pressed in the @. Prothorax transverse, arcuately narrowing from the base to the narrow anterior lobe ;

closely, finely punctate. Elytra wider than the prothorax, rapidly narrowing from the base; flattened

anteriorly, each with a deep, oblique, foveiform depression on the disc at one-third from the apex;

sharply striate, the strie obsoletely punctate, the interstices almost smooth, flat, the second depressed

along the short apical declivity. Beneath very sparsely, finely punctate; intercoxal portion of the

prosternum tumid in the middle in the 2, hollowed in the ¢; first ventral segment very broadly

excavate, and the fifth with a transverse densely pilose depression, in the ¢. Anterior tibie sinuous,

dilated in their apical two-fifths, and unarmed at the apex in the g, gradually widened to the apex and

with a long terminal claw in the 9. Anterior tarsi with long projecting hairs in the g.

Length 54-7, breadth 21-3 millim. (¢ @.)

Hab. Costa Rica, Rio Sucio and Irazu (fogers).

One female and two males.

CALANDROMIMUS, gen. nov.

Rostrum flattened, feebly curved, very little longer than the head and prothorax, the scrobes rapidly descending,

becoming shallow and coalescent beneath, the antenne inserted slightly beyond the middle, the antennal

club small, ovate; mandibles blunt and slightly decussate at the tip ; head small ; eyes large, transverse ;

prothorax with a short, abrupt neck in front, the basal lobe truncate ; scutellum large, free, flat, trans-

versely subquadrate; elytra oblong-triangular, wider than the prothorax, sharply striate; pygidium not

visible; pro-, meso-, and metasternum and abdomen broadly excavate or flattened down the middle for

their entire length; prosternum with a fine arcuate groove between the widely-separated, exserted

anterior cox, the broad basal process shallowly arcuate-emarginate behind and on the same plane as the

flattened intereoxal portion of the mesosternum; mesothoracic epimera broad and ascending, the upper

portion visible from above; metasternum with a narrow median sulcus; ventral segments 1 and 2

connate in the middle; femora unarmed, curved, compressed, strongly clavate, the anterior pair very

stout; tibiae somewhat curved, flattened, acutely produced at the inner apical angle in the ¢; tarsi

comparatively slender, the claws free; body elongate-elliptic, bread, flattened above and beneath, sparsely

squamose.

Type, C. caviventris.

The single species from Panama, represented by two specimens (evidently ¢ and ¢ ),

3 AA 2

364 RHYNCHOPHORA.

from which the above diagnosis is taken, has the general facies of a Calandrid, with

the elytra marked as Madarus bilineatus. The only insect known to me at all

resembling it is the eastern genus Plawxes, Pasc. Calandromimus, to the best of my

recollection, was found under the sappy bark of a fallen tree,

1. Calandromimus caviventris, sp. n. (Tab. XVIII. figg. 23, 23 a, b, 3.)

Black or nigro-piceous, the extreme base of the antennzy rufous, the surface moderately shining; the elytra

with a dense line of imbricate narrow ochreous scales running down the third interstice to a little beyond

the middle, the rest of the elytral interstices thickly clothed with very small, oval fuscous scales, the

prothorax with a small patch of hair-like ochreous scales at the base on each side; the punctures in

the hollowed median portion of the under surface each bearing a small, hair-like, ochreous scale, and the

excavated space itself bordered on each side with a dense matted fringe of longer and coarser, hair-like,

similarly-coloured scales ; the tibie pilose within. Head closely, minutely punctate, transversely sulcate

between the eyes; rostrum moderately stout, closely, finely punctate. Prothorax broader than long, the

sides rounded and gradually converging to the short neck-like constriction ; closely, finely punctate,

except along the median line. Elytra with rather broad obsoletely punctate strie, the interstices densely,

finely punctate and with a smooth line on each side. Beneath shining, very closely and finely, the

abdomen sparsely, punctate, the sides of the metasternum with coarse, scattered punctures; ventral

segments 1 and 2 broadly hollowed, and 3 and 4 flattened, down the middle, 5 also excavate in the ¢.

Femora closely, finely punctate. Anterior tibie hollowed and clothed with short hairs on the inner side

towards the apex.

Length 6%, breadth 23? millim. (¢ 9.)

Hab. Panama, Bugaba (Champion).

One pair, the specimen assumed to be the male having the anterior tibie acutely

produced at the inner apical angle and the fifth ventral segment excavate.

Sect. MADARIDES.

Madarides vrais, Lacordaire (part.).

Under this section are included the “ Madarids” with fully exposed pygidium.

They all have the basal portion of the prosternum greatly developed and nearly or

quite covering the mesosternum. Ampeloglypter would perhaps be almost equally

well placed near Onychobaris in the “ Baridiides vrais.”

MADARUS.

Madarus, Schénherr, Disp. Meth. p. 273 (1826) ; Gen. Cure. iii. p. 636, viii, 1 »p. 105; Lacordaire,

Gen. Col. vii. p. 256.

This genus, after excluding Madarellus, includes numerous Tropical American forms,

and will doubtfully have to be further divided. I follow Lacordaire in placing the

species under two groups—one with the upper surface completely bare, and the other

with patches of scales on the prothorax and elytra. The prosternum may be unim-

pressed, bifoveate or sulcate, and is sometimes tumid between the coxe in the males

(MM. tumefactus), or deeply emarginate at the base (1. corvinus, &c.). The rostrum

is elongated and hairy in the male of quadripustulatus, and the anterior tarsi are

MADARUS.

365

occasionally (as in the Colombian Mf velatipes and WM. tarsalis, Kirsch) very hairy in

this sex. The toothing of the femora, or at least of the anterior pair, is often a

variable character, and more or less corresponds with the greater or less sulcature of

their lower surface. ‘The elytra are uneven in many of the smaller glabrous forms.

a. Prothorax and elytra glabrous.

a’, Basal process of the prosternum angularly emarginate behind; elytra

obsoletely striate-punctate or almost smooth ; femora clavate, unarmed

(the anterior pair sometimes obsoletely dentate), not sulcate; body black.

a’. Rostrum of ¢ longer than in 9, ciliate beneath ; antennal club elongate ;

prosternum unimpressed in front; elytra spotted . .

6°. Rostrum of ¢ not longer than in 2, bare; antennal club acuminate-

ovate or ovate; elytra immaculate.

a’, Prosternum with a single deep fovea in front; prothorax with a long

basallobe . 2. 2. ew ee ee ee ee ee

6°. Prosternum bifoveate or unimpressed in front ; prothorax with less

produced basal lobe. . . . 1. 2. ee. ee.

5‘. Basal process of the prosternum feebly notched, arcuate-emarginate, or

truncate behind.

c?, Prosternum bifoveate or unimpressed in front; elytra obsoletely or

faintly striate; body black.

c’. Anterior femora feebly dentate, the others obsoletely sulcate

d°. Anterior femora unarmed.

a‘. Femora not suleate, clavate . .

6‘. Femora (the anterior pair excepted) sulcate, linear or clavate.

d?, Prosternum broadly and shallowly sulcate anteriorly ; femora unarmed,

sulcate ; elytra uneven, obsoletely striate on the disc ; body metallic

e. Prosternum deeply sulcate to between the cox; femora obsoletely

dentate or unarmed, more or less sulcate ; body black.

. Elytra obsoletely striate on the disc .

mn Elytra distinctly striate. . . . . . . . .

b. Prothorax and elytra with patches of scales ; basal process of the prosternum

ey emarginate or truncate behind.

. Prosternum bifoveate or not in front; elytra striate.

= 2 Femora, or at least the anterior pair, usually with a small tooth, more

or less sulcate.

g’. Elytra with an oblong or oval patch of scales at the base of the 3rd

interstice . .... . . . .

>, Elytra with a short narrow line of scales at ‘the base of the 3rd

interstice . . 2. - + © © «© © © «© © «

>. Elytra with an elongate line of scales running down the 38rd interstice.

7°. Elytra with irregular confluent lines of scales, femoral tooth distinct .

g’. Femora unarmed, linear, shallowly sulcate; elytra mottled and sub-

bifasciate . 6 ee ee ee ee

Species 1.

Species 2, 3.

Species 4.

Species 5, 6.

Species 7.

Species 8, 9.

Species 10.

Species 11, 12.

Species 13, 14.

Species 15-18.

Species 19.

Species 20, 21.

Species 22.

Species 23.

366 RHYNCHOPHORA.

a’, Prosternum bisuleate; intermediate and posterior femora obsoletely

sulcate.

h’, Anterior femora feebly dentate; elytra with the striz obliterated on the

disc. 6 ee ew we ew ee ee ee ee we ew ww ee) «Species 24,

i’. Anterior femora unarmed; elytra striate throughout . . . . . . . Species 25.

1. Madarus quadripustulatus. (Tab. XVIIL figg. 24, 24a, ¢; 25, 2.)

Calandra quadripustulata, Fabr. Syst. Eleuth. ii. p. 435 7.

¢. Madarus quadripustulatus, Boh. in Schénh. Gen. Cure. viii. 1, p. 1057.

3. Rostrum (fig. 24 a) elongate, abruptly bowed at the apical third, with a dense fringe of long falvous hairs

along each edge beneath, the antenne inserted far beyond the middle; prosternum with a stout, flattened,

anteriorly bifurcate process between the coxe; anterior tarsi dilated and hairy ; anterior tibie hairy

along their inner edge; first ventral segment depressed, and clothed with a few hair-like scales, down the

middle, the fifth truncate at the apex; pygidium transverse and narrowly visible from beneath.

2. Rostrum (fig. 25) much shorter, strongly arcuate from the base, the antenne inserted at about the middle ;

pygidium longer and less eonvex, scarcely visible from beneath.

Hab. GuatEMaLa, Yzabal (Sallé: 3g); Nicaragua, Chontales (Belt: 9); Panama,

Volcan de Chiriqui (Champion: ¢ ).—Sourn Auerica ! 2,

We possess three specimens of this widely-distributed insect frrom Central America.

The male has not previously been described. The antennal club is elongate, the

prosternum is without apical fovea, and its basal process is emarginate behind, in both

sexes. MM. quadripustulatus is incorrectly treated in the ‘Munich Catalogue ’

(p. 2638) as synonymous with Conoproctus quadriplagiatus, Lacord.

2. Madarus corvinus. (Tab. XVIII. figg. 26, 26a, ¢.)

Calandra corvina, Fabr. Syst. Eleuth. ii. p. 4357.

Madarus corvinus, Boh. in Schénh. Gen. Cure. iii. p. 638 ?.

d. Fifth ventral segment subtruneate at the apex (leaving the pygidium narrowly exposed beneath); antenns

inserted beyond the middle of the rostrum.

2. Fifth ventral segment rounded at the apex (the pygidium scarcely visible from beneath); antenne

inserted at the middle of the rostrum.

Hab. Nicaragua, Chontales (Belt: 2); Panama, Bugaba (Champion: ¢ ).—Sovtu

AMERICA !, Brazil 2.

T'wo males and two females. Recognizable by the deeply sinuate base of the

prothorax; the almost smooth elytra (the faint striz being visible at the sides only),

which are considerably dilated at the shoulders; the squamose, bifurcate basal portion

of the prosternum, and the deep transverse fovea near its apical margin. ‘The femora

are clavate, the anterior pair sometimes with indications of a short tooth. The

exposed intercoxal portion of the metasternum is triangular.

MADARUS. 367

3. Madarus heterosternus, sp.n. (ab. XVIII. figg. 27, 274, 9.)

Oblong-rhomboidal, broad, flattened above, glossy-black, glabrous. Head very finely punctate; rostrum

stout, arcuate, rather longer than the head and prothorax, the antenne inserted at about the middle, the

antennal club oblong-ovate. Prothorax conical, feebly constricted in front, deeply sinuate at the base,

the median lobe rounded at the apex and greatly produced ; sparsely, very finely punctate. Scutellum

arcuate. Elytra depressed before and behind the swollen humeri, faintly lineato-punctate, the sutural

and outer strive alone visible, the interstices with scattered excessively minute punctures. Pygidium

coarsely punctate. Beneath with fine widely scattered punctures. Prosternum somewhat tumid between

the coxe anteriorly, and with a very deep transverse subapical fovea, in the centre of which is a trans-

verse tubercle, the basal process (fig. 27 «) deeply triangularly emarginate behind and completely bare.

Femora clavate, unarmed.

Length 84, breadth 4,4, millim. (2.)

Hab. GuateMata, Cerro Zunil, Pacific slope (Champion).

One female. Extremely like M. corvinus, and only separable therefrom by the

obliquely narrowed prothorax, with longer median lobe, the distinct sutural stria, the

glabrous prosternal process, and the more coarsely punctured pygidium, the subapical

fovea of the prosternum enclosing a transverse tubercle.

4, Wadarus cornix. (Tab. XVIII. figg. 28, 28a, ¢.)

Madarus cornix, Kirsch, Berl. ent. Zeitschr. 1869, p. 219°.

3. Fifth ventral segment sinuato-truncate at the apex (leaving the pygidium narrowly exposed beneath) ;

antenne inserted beyond the middle of the rostrum.

Q. Fifth ventral segment rounded at the apex (the pygidium scarcely visible from beneath); antenn inserted

at about the middle of the rostrum, the apical portion slightly narrowed.

Hab. Mexico, Misantla (Godman); Nicaragua (Sallé), Chontales (Belt); Panama,

Bugaba, Volcan de Chiriqui (Champion).—CotomB1a, Bogota *.

Of this species we have obtained nine specimens from within our limits. It is

smaller and narrower than JZ. corvinus; the median lobe of the prothorax is truncate ;

the scutellum is smaller; the elytra are less dilated at the shoulders, obsoletely

punctate-striate, and with scattered excessively minute punctures in the interstices ;

the prosternum is, at most, feebly bifoveate near the apex, and the basal process is bare

and not so deeply emarginate. The type (2) has been kindly communicated by

Dr. Heller for comparison.

5. Madarus chiriquensis, sp. n. (Tab. XVIIL figg. 29, 29a, 2.)

Elongate, somewhat fusiform, glossy-black, glabrous. Head finely punctate, transversely depressed between

the eyes; rostrum strongly arcuate, a little longer than the head and prothorax, abruptly thickened and

closely punctate in its basal fourth, for the rest slender and almost smooth, the antenne inserted near

the base. Prothorax transverse, rather convex, constricted and much narrowed in front, the sides

strongly rounded anteriorly and parallel at the base; very sparsely, minutely punctate. Scutellum

concave. Elytra gradually narrowing from the base, transversely depressed anteriorly; very finely

lineato-punctate, striate at the apex, the interstices each with a single row of excessively minute

punctures. Pygidium densely punctate, rounded at the tip, nearly as long as broad. Beneath sparsely

and rather coarsely punctate, a broad space down the middle much smoother. Prosternum deeply bifoveate

368 RHYNCHOPHORA.

near the apex, the broad basal portion very shallowly arcuate-marginate. Anterior coxe separated by

nearly twice their own width. Legs rather elongate, comparatively slender ; anterior and intermediate

femora feebly. dentate; anterior tibize subangularly dilated on the inner side near the base; anterior

tarsi slightly dilated and hairy.

Length 6, breadth 2! millim. ( 9.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen, evidently a female, to judge from the form of the rostrum and of that

of the last ventral segment. Narrower and less cuneiform than J. velatipes, Kirsch,

from Bogota, the prothorax less abruptly narrowed in front, the elytra obsoletely

striate to near the apex, the anterior tibie dilated on the inner side near the base.

M. tarsalis, Kirsch, from Bogota, is yet another allied form, both these insects having

long, dilated, and very hairy anterior tarsi in the male sex.

6. Madarus clavipes, sp. n. (Tab. XVIII. figg. 30, 30a, 2.)

Broad, subfusiform, glossy-black, glabrous. Head finely punctate, unimpressed between the eyes; rostrum

curved, as long as or longer than the head and prothorax, the basal portion thickened and rather coarsely

punctate laterally, the longer apical portion sparsely, finely punctate, the antenne inserted far behind

the middle. Prothorax large, moderately convex, broader than long, rounded at the sides, rapidly

narrowed from the middle forwards, feebly constricted in front, deeply sinuate at the base; sparsely,

very finely punctate, faintly strigose on the flanks. Scutellum arcuate. Elytra rapidly narrowed from

the base, transversely depressed anteriorly ; very finely lineato-punctate, striate at the sides and apex,

the interstices each with a row of excessively minute punctures. Pygidium densely punctate, about as

long as broad. Meso- and metasternum coarsely punctate atthe sides, the rest of the under surface more

finely punctured, the ventral segments 2-5 still smoother. Prosternum feebly bifoveate near the apex,

the very broad basal portion subtruncate behind. Femora clavate, each with a very small tooth.

Length 675-62, breadth 3 millim. (@.)

Hab. Guatema.a, Chiacam in Vera Paz (Champion); Panama, Bugaba (Champion).

Three specimens, varying in the length of the rostrum, but evidently all females.

This insect is of about the same size and shape as WV. witiosus; but it has a relatively

larger, less constricted prothorax, more even elytra, a broader scutellum, a non-sulcate

prosternum, and feebly toothed, clavate femora.

7. Madarus mirandillg, sp. n. (Tab. XVIII. figg. 31, 31@, ¢.)

Klongate, subfusiform, glossy-black, glabrous. Head sparsely, minutely punctate, transversely depressed

between the eyes; rostrum a little longer than the head and prothorax, arcuate, moderately stout,

slightly thickened towards the base, finely punctate, the antenne inserted at the middle. Prothorax

distinctly broader than long, subconical, feebly constricted in front; very finely, somewhat closely

punctate. Elytra gradually narrowing from the base, transversely depressed anteriorly ; very finely and

shallowly punctate-striate, the strie becoming deeper at the sides, the interstices minutely, confusedly

punctate. Pygidium closely punctate. Meso- and metasternum coarsel y punctate at the sides, the rest

of the under surface very sparsely and finely punctured. Pronotum unimpressed behind the transverse

subapical groove, the basal process truncate, foveate in the middle posteriorly. Anterior coxee separated

by rather more than their own width. Femora clavate, unarmed.

Length 54, breadth 21 millim. ( 9.)

Hab. GuaTeMaLa, Mirandilla, Pacific slope (Champion).

MADARUS. 369

One female. Less elongate than WM. scaphiformis, the elytra more distinctly striate

on the disc, the interstices not costate at the apex, the prosternum unimpressed, the

femora not sulcate, the rostrum not flattened towards the apex. The prothorax is

subconical, and narrower and less convex than in J, clavipes, &c. ‘The minute

interstitial punctuation of the elytra is rather close.

8. Madarus eutoxoides, sp.n. (Tab. XVIII. figg. 32, 32a, 3.)

Elongate, subfusiform, black, shining, glabrous. Head finely punctate, transversely grooved between the

eyes; rostrum very stout, moderately curved, about as long as the head and prothorax, rather coarsely

punctate, sulcate at the sides, the antenne inserted at the middle, the scape not nearly reaching the base,-

the club oblong-ovate, acuminate, about as long as joints 3-7 of the funiculus. Prothorax as long as

broad, somewhat convex, subconical, the sides becoming parallel towards the base, the base deeply

sinuate ; sparsely, very finely punctate, the flanks finely, obliquely strigose. Elytra a little longer than

the prothorax, triangular, transversely depressed at the base; very finely lineato-punctate, striate at

the sides and apex, the interstices each with a row of excessively minute punctures. Pygidium large,

rather convex, densely punctate. Beneath coarsely punctate along the flanks, for the rest much smoother,

the second ventral segment densely, finely punctate in the middle in the ¢. Prosternum somewhat

tumid between the widely separated anterior cox, the basal process truncate behind, the transverse

subapical groove without fovee. Femora sublinear, unarmed, the anterior pair shallowly, the others

deeply, suleate beneath. Tarsi nearly as long as the tibie, the anterior pair slightly dilated and with a

few projecting hairs in the ¢.

Length 6, breadth 22-2} millim. (¢ 2.)

Hab. Panama, David (Champion: ¢ ), Tabernilla, Canal Zone (Busch, in US. Nat.

Mus.: 2).

One pair. This insect has wholly the facies of a small Hutoxus, but the pygidium

is large and completely exposed. The prothorax is nearly as long as the elytra, and the

rostrum is very stout and moderately long.

9. Madarus tumefactus, sp.n. (Tab. XVIII. figg. 33, 33a, 3.)

Elongate, somewhat fusiform ; glossy-black, glabrous above, the punctures of the under surface and legs each

bearing a very minute whitish scale. Head sparsely, very finely punctate, transversely depressed between

the eyes; rostrum strongly arcuate, very stout, a little longer than the head and prothorax, sparsely

punctate, the antenne inserted slightly behind the middle, the antennal club large and acuminate, as

long as joints 2-7 of the funiculus. Prothorax rather convex, almost as long as broad, gradually,

arcuately narrowing from the deeply sinuate base, strongly constricted and tubulate in front; sparsely,

very finely punctate (except along the smooth median line), obliquely strigose on the flanks. Elytra

subtriangular, depressed at the base, along the suture, on the disc beyond the middle, and behind the

humeri; very finely punctate-striate, the interstices each with a row of excessively minute punctures.

Pygidium large, rather convex, closely punctate. Beneath sparsely, coarsely punctate; first ventral

segment slightly depressed down the middle. Prosternum transversely tumid between the widely-

separated coxze and broadly hollowed thence to the apex, the basal process shallowly arcuate-emarginate

behind. Femora subclavate, unarmed, the intermediate and posterior pairs broadly sulcate beneath.

Anterior tibiz narrow. Anterior tarsi slightly dilated, joint 2 strongly transverse, the apical

uncus stout.

Length 54, breadth 22 millim. (¢.)

Hab. Panama, Bugaba (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, September 1908. 3 BB

370 RHYNCHOPHORA.

One male. This species agrees with M. vitiosus in having uneven elytra, but the

rostrum is very stout, the prothorax is less abruptly constricted in front, and the femora

are unarmed; and the male has the prosternum transversely tumid behind and broadly

hollowed thence to the apex, the anterior tibia narrow, and the second joint of the

anterior tarsi dilated within.

10. Madarus illustris, sp.n. (Tab. XVIII. figg. 34, 34 4, b, 9.)

Somewhat fusiform, broad, of a brilliant eneous or cupreo-zeneous colour, glabrous above, the punctures of

the under surface and legs each bearing a minute, ochreous, hair-like scale. Head closely punctate;

rostrum arcuate, about as long as the head and prothorax, thickened towards the base, closely punctate,

the apical half much smoother. Prothorax convex, broader than long, rounded at the sides, constricted

and much narrowed in front ; sparsely, finely punctate, the flanks obliquely strigose. Hlytra triangular,

scarcely wider than the prothorax, uneven, transversely depressed below the base; very finely striate,

the strie distinctly punctate, the interstices with minute scattered punctures, becoming asperate laterally.

Pygidium large, prominent, densely punctate. Beneath coarsely and rugosely, a broad space down the

middle of the metasternum and abdomen sparsely and finely, punctate. Prosternum somewhat tumid

between the coxe posteriorly and with a sharply-defined, shallow, flattened, Y-shaped sulcus on the

anterior half (fig. 845). Femora suleate beneath, unarmed,

Length 575-64, breadth 22-3} millim. ( 9.)

Hab. Mexico, Tehuantepec (Jus. Brit.) ; GuaTemaLa, San Gerénimo (Champion).

Five specimens, four of which are from Guatemala; these latter were beaten out of

hedges on the hot arid plain of Salama. Easily recognizable by the brilliant eneous,

glabrous upper surface, the uneven elytra, and the anteriorly sulcate prosternum.

11. Madarus scaphiformis, sp.n. (Tab. XVIII. figg. 35, 354, 0, @ .)

Elongate, somewhat scaphiform, glossy-black, glabrous. Head finely punctate, transversely depressed between

the eyes; rostrum not longer than the head and prothorax, strongly and abruptly arcuate from the base,

the basal portion thickened and rather coarsely punctate laterally, the long apical portion flattened and

almost smooth, the antenne inserted far behind the middle, the antennal club rather small, ovate.

Prothorax broader than long, gradually narrowing from the base, constricted in front; sparsely, finely

punctate, the punctures becoming coarser on the flanks. Scutellum small, transverse, triangular. Elytra

rather elongate, gradually narrowing from near the base, transversely depressed anteriorly, and obliquely

compressed at the sides below the humeri; very finely lineato-punctate, striate at the sides and apex,

the interstices abruptly and sharply costate at the apex and each with a line of excessively minute

punctures extending thence to the base. Pygidium transverse, rugulosely punctate, separated from the

last dorsal segment by a sinuous ridge. Beneath rather coarsely, the ventral segments finely and

sparsely, punctate. Prosternum deeply sulcate from the apex to between the anterior coxee, which are

separated by about their own width, the basal process flattened, broadly truncate behind (fig. 36 6 *).

Femora feebly clavate, unarmed, the anterior pair shallowly, the others deeply sulcate. Tarsi rather

slender.

Length 64, breadth 3 millim. (@.)

ITab. Costa Rica, Azahar de Cartago (Underwood).

One female. Easily distinguished by its elongate, scaphiform shape, the apically

costate elytral interstices, the long, deep, parallel-sided, prosternal sulcus, and the

deeply sulcate, intermediate and posterior femora.

* The numbers behind the figures 35 6 and 36} have been transposed on the Plate.

MADARUS. dtl

12. Madarus vitiosus, sp.n. (Tab. XVIII. figg. 36, 36 a, b, ¢.)

Broad, subfusiform, very shining, black, glabrous. Head sparsely, finely punctate, transversely grooved

between the eyes; rostrum strongly arcuate, rather longer than the head and prothorax, stout, gradually

thickened and closely punctate at the base, for the rest very sparsely, finely punctate, in the @ a little

longer and smoother, the antenne inserted at (¢) or behind (Q) the middle. Prothorax transverse,

convex, rounded at the sides, abruptly narrowed and constricted in front, deeply sinuate at the base ;

very sparsely, minutely punctate, the flanks finely, obliquely strigose. Elytra depressed at the base and

along the suture, and obliquely compressed at the sides before and beyond the middle, rapidly narrowing

from the rounded humeri, the subapical callosities prominent; very finely lineato-punctate, striate at the

sides and apex, the interstices subcostate at the apex and each with a row of excessively minute

punctures. Pygidium densely punctate, convex in the g. Beneath sparsely, coarsely punctate, the

abdomen very much smoother. Prosternum sulcate, the sulcus extending backward between the

cox, widened posteriorly and also in front, the basal process shallowly arcuate-emarginate behind

(fig. 356). Femora obsoletely dentate, sulcate beneath. Anterior tibiew sinuous, dilated in their apical

half in both sexes. Anterior tarsi simple in the d.

Length 51-61, breadth 22-3 millim. (J 2.)

Hab, Panama, Volcan de Chiriqui 3000 feet (Champion).

One pair. A moderately elongate, rather broad form, with glistening, uneven,

obsoletely striate elytra, the subapical callosities of which are prominent, a sulcate

prosternum, obliquely strigose propleura, and obsoletely dentate, sulcate femora, the

anterior tarsi not dilated in the male.

13. Madarus tremulus, sp.n. (Tab. XVIII. figg. 37, 37a, 4, 2.)

Moderately elongate, subfusiform, glossy-black, glabrous. Head closely punctate, transversely depressed

between the eyes; rostrum strongly arcuate, a little longer than the head and prothorax, abruptly”

thickened and closely punctate at the base, the longer apical portion flattened and smooth, the antenne

inserted far behind the middle, the antennal club ovate and rather small. Prothorax transverse, sub-

conical, constricted and tubulate in front; finely, somewhat closely punctate, the punctuation becoming

coarser on the flanks. Elytra rapidly narrowed from the base, uneven, finely punctate-striate, the

initerstices each with a row of excessively minute punctures, somewhat angulate at the apex. Pygidium

transverse, rugosely punctate, separated from the last basal segment by a sharp ridge. Beneath coarsely,

the ventral segments 2-5 finely, punctate. Prosternum sharply sulcate to the apex, the sulcus abruptly

widened between the coxx, which are separated by about their own width, the basal process hollowed

in the middle and feebly binodose, arcuate-emarginate behind (fig. 37). Femora unarmed, obsoletely

guleate, closely punctate. Anterior tibiz sinuate within.

Length 6, breadth 24 millim. ( 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

One female. Less elongate than UM. scaphiformis (which has a similarly sulcate

prosternum), the rostrum (¢) abruptly thickened at the base, the elytra triangular,

more uneven, and distinctly striate throughout, the femora obsoletely sulcate, &c.

14. Madarus astutus, sp.n. (Tab. XVIII. figg. 38, 38 a, 4, 2.)

Elongate-rhomboidal, very shining, black, glabrous above, the punctures on the greater part of the under

surface each bearing a minute hair-like scale. Head very finely punctate, transversely depressed between

the eyes; rostrum about as long as the head and prothorax, arcuate, slender, abruptly thickened,

gibkous, and closely punctate laterally at the base, smooth and flattened thence to the tip, the antenne

3 BB 2

72 RHYNCHOPHORA.

iS}e)

inserted behind the middle. Prothorax conical, a little broader than long, constricted and tubulate in

front; very sparsely, minutely punctate. Scutellum small, transverse. Elytra oblong-subtriangular,

slightly wider than the prothorax, transversely depressed at the base ; finely, sharply striate, the striz

feebly punctate, the first and second not reaching the base, the interstices flat, each with a few scattered

excessively minute punctures. Pygidium transverse, densely punctate, vertical, the last dorsal segment

longitudinally carinate down the middle posteriorly. Beneath sparsely punctate. Prosternum broadly

sulcate from the flattened basal process to the transverse subapical groove, the sulcus convex for some

distance along the middie and bordered on each side in front of the coxe by a short subangular ridge,

the basal process margined laterally and on the same plane as the connate meso- and metasternum

(fig. 88d). Anterior coxe separated by about their own width, Femora unarmed, sulcate.

Length 55%, breadth 22 millim. ( 9.)

Hab. Mexico (Mus. Brit.).

One female. Distinguished amongst its allies by the flattened, slender rostrum,

which is abruptly thickened and gibbous at the base, the broadly sulcate prosternum,

and the sharply striate elytra, the first and second strie not reaching the base. ‘The

prosternal structure is not unlike that of IW. bisulcatus.

15. Madarus vorticosus. (Tab. XIX. figg. 1, 1a, ¢.)

Madarus vorticosus, Boh. in Schénh. Gen. Cure. iii. p. 639°.

Madarus verticosus, Schonh. op. cit. viii. 1, p. 106°.

g. Anterior tarsi slightly dilated, hairy, the anterior tibie also hairy within; rostrum with the narrowed

apical portion a little shorter than the basal portion ; first ventral segment flattened down the middle.

©. Rostrum with the apical portion abruptly narrowed, longer than tbe basal portion, almost smooth, and

more slender.

Ilab. Mexico! ? (Lruqui), Matamoros Izucar, Toxpam (Sallé), Cordova (Knab, in

U.S. Nat. Mus. ; Hoge), Jalapa (Hoge), Orizaba (Sallé, H. H. Smith), Tehuantepec

(us. Brit.).

Distinguishable by the somewhat close vestiture, which is condensed into a dense

oblong patch at the base of the third elytral interstice, and sometimes into a smaller

patch at the base of the fifth also, the closely punctured, eneous surface, and the

abruptly narrowed rostrum of the female.

16. Madarus distigma. (Tab. XIX. fig. 2, ¢.)

Madarus distigma, Boh. in Schénh. Gen. Cure. viii. 1, p. 107°.

3. Anterior tarsi slightly dilated, hairy, the anterior tibie also hairy within; rostrum with the narrower

apical portion about as long as the basal portion; prosternum transversely tumid between the coxe

anteriorly ; first ventral segment flattened down the middle.

2. Rostrum with the apical portion a little smoother, otherwise as in the ¢.

Hab. Mexico}, Playa Vicente (Sal/é), Santa Lucrecia in Vera Cruz (Kanab, in U.S.

Nat. Mus.), Teapa (H. H. Smith), Yucatan (Mus. Brit.); Brrrish Honpvras, Belize

(Blancaneaux) ; GuatemaLa (Mus. Brit.), Panzos, Teleman, Chacoj, El Reposo, Rio

Maria Linda (Champion); Nicaragua, Managua (Solari); Costa Rica, Zent and

Banana River (Anab, in U.S. Nat. Mus.), Alajuela (Orozco), Reventazon (Biolley),

MADARUWUS. 379

)

Very like WM. vorticosus, but less elongate and almost glabrous above (the oblong

ochreous patch at the base of the third elytral interstice and a few scattered sete

excepted) ; the prosternum tumid between the cox anteriorly in the male, deeply

bifoveate at the apex; the rostrum very similarly formed, and the antenn inserted

at about the middle, in the two sexes, the anterior femora obsoletely dentate. Varies

from 4—64 millim. in length.

17. Madarus bistrigellus. (Tab. XIX. figg. 3, 3a, ¢.)

Madarus bistrigellus, Boh. in Schénh. Gen. Cure. viii. 1, p. 109°.

¢. Anterior tarsi hairy, the anterior tibie also with a few hairs along their inner edge at the apex; rostrum

with the narrower apical portion about as long as the basal portion ; first ventral segment flattened down

the middle.

@. Rostrum with the apical portion a little smoother, otherwise as in the 3.

Hab. Mexico (coll. Sommer+; Truqui, in Mus. Brit.), Puebla, Toxpam (Sallé),

Paso del Macho, Jalapa (Hodge), Orizaba (1. H. Smith), Cordova (Héige; Knab, in

U.S. Nat. Mus.); Brivish Honpuras (Blancaneaux); Guatemaua, Chiacam and

San Juan in Vera Paz (Champion); Nicaragua, Chontales (Janson); Costa Rica,

Reventazon (Biolley), Zent, Puerto Limon (Knab, in U.S. Nat. Mus.).

Smaller than MW. distigma ; the prothorax shorter, more rounded at the sides, abruptly

constricted in front, and much smoother; the elytral interstices very finely uniseriate-

punctate, the oblong, ochreous or white patch at the base of the third sometimes

reduced to a narrow streak; the prosternum not tumid in the male, deeply foveate

as in M. distigma; the anterior femora distinctly dentate. The length varies from

4-5 millim. Dr, Sjostedt informs me that this species is not represented in the

Stockholm Museum.

18. Madarus bisignatus, sp. n. (Tab. XIX. figg. 4, 4a, 3.)

Elliptic, shining, black, with a slight brassy lustre; the elytra each with a dense oval patch of yellowish-

white scales at the base of the third interstice and often a small spot at the base of the second also; the

punctures of the under surface and legs each bearing a minute whitish scale. Head closely, minutely

punctate, transversely depressed between the eyes; rostrum arcuate, moderately stout, longer than

the head and prothorax, finely punctate, the antenne inserted behind the middle, the antennal club

ovate. Prothorax transverse, rounded at the sides (conspicuously so in the ¢), constricted and much

narrowed in front; closely, rather coarsely punctate, rugose on the flanks. Scutellum small. Elytra

rounded-triangular, comparatively short, sharply striate, the strie feebly punctate, the interstices faintly,

asperately, uniseriate-punctate. Pygidium transverse, densely punctate. Beneath closely and very

coarsely, a broad space down the middle of the metasternum and abdomen finely and sparsely, punctate,

the anterior half of the prosternum rugose. Prosternum bifoveate or finely sulcate in front, in the ¢

transversely tumid or sublamellate between the widely-separated coxe anteriorly, the basal process

broadly truncate behind. Femora shallowly sulcate, the anterior and intermediate pairs feebly dentate,

Anterior tibiee with a few hairs at the apex within, and the anterior tarsi slightly dilated and hairy,

in the 3.

Length 2-31, breadth 15-14 millim. (¢ 2.)

_ Hab. British Honpuras, Belize (Blancaneaus: 3 2); Guatemata, Cahabon in Alta

Vera Paz (Champion: 2); Panama, Volcan de Chiriqui (Champion: ¢).

374 RHYNCHOPHORA.

Six specimens. Smaller and shorter than JM. bistrigellus, the elytra with the whitish

spot at the base of the third interstice less elongate, the strie broader and deeper, the

interstices not so smooth, the prothorax more coarsely punctate, the prosternum (as

in MW. tumefactus) transversely tumid or lamellate between the coxe anteriorly in

the male.

19. Madarus brevilinea, sp. n. (Tab. XIX. figg. 5, 5a, 3.)

Somewhat fusiform, sneous, shining; the sides of the prothorax, the elytra (a broad space along the suture

excepted), under surface, and legs sparsely clothed with small, hair-like, ochreous or cinereous scales, the

third elytral interstice with a dense line of rather coarser, similarly-coloured scales at the base. Head

finely punctate, transversely depressed between the eyes; rostrum strongly arcuate, stout, usually about

as long as the head and prothorax, closely punctate, the apical portion much smoother in the °.

Prothorax broader than long, rounded at the sides, rapidly narrowed in front; closely punctate, the

punctures transversely confluent on the flanks. Elytra not wider than the prothorax, transversely

depressed on the disc anteriorly; very finely striate, the interstices with minute, scattered punctures,

which become asperate laterally, the third about equal in width throughout. Pygidium large, prominent.

Beneath coarsely and rugosely, a broad space along the middle of the metasternum and abdomen very

sparsely and finely, punctate. Prosternum not or feebly bifoveate in front. Anterior femora obsoletely

dentate, the others sulcate beneath. 4

¢d. Anterior tarsi slightly dilated and hairy ; prosternum somewhat tumid between the coxe anteriorly.

Length 5-53, breadth 2-2} millim. (¢ 2.)

Hab. Mexico, Playa Vicente (Sallé), Cordova (Hoge), Teapa (Hoge, H. H. Smith).

Ten specimens, varying greatly in the length of the rostrum, apparently all females

but one. Separable from WM. distigma, &c., by its rather narrow form, the bright

veneous surface, the fine vestiture, the narrower ochreous or whitish streak at the base

of the third elytral interstice, aud the very finely striate elytra.

20. Madarus macrogrammus, sp. n. (Tab. XIX. figg. 6, 6a, 3.)

Madarus macrogrammus, Jekel in litt.

Somewhat fusiform, broad, bronze-black, shining; somewhat thickly clothed (a broad space along the middle

of the prothorax, the scutellum, and the first and second elytral interstices excepted) with narrow, hair-

like, fulvous or fulvo-cinereous scales, the elytra with a dense ochreous vitta extending down the third

_ interstice from the base to near the apex. Head closely punctate ; rostrum strongly arcuate, about as

long as the head and prothorax, thickened towards the base, closely punctate, the apical portion in the 2

abruptly narrowed and almost smooth, the antenne inserted at or a little behind the middle. Prothorax

transverse, rather convex, rounded at the sides anteriorly, rapidly narrowed from about the middle,

feebly constricted in front; closely punctured, the punctures becoming transversely confluent towards

the sides. Elytra subtriangular, not or scarcely wider than the prothorax, transversely depressed on the

disc anteriorly ; narrowly striate, the interstices finely punctate, becoming asperate towards the sides,

the second very gradually widened towards the base. Pygidium large, prominent. Beneath rugosely,

a broad space along the middle of the metasternum and abdomen very sparsely and finely, punctate.

Prosternum bifoveate near the apex. Anterior femora not or obsoletely dentate.

¢. Anterior tarsi slightly dilated, hairy, the anterior tibie also with a few hairs within.

Length 43-63, breadth 2-24 millim. (d 9.)

Hab. Mexico, Guanajuato (Sallé); Guaremata (Mus. Brit. ; Sallé), El Tumbador,

Cerro Zunil, Calderas, Capetillo, Duefias, Aceituno, San Gerénimo (Champion) ;

Costa Rica (coll. Fry).

MADARUS. 370

This is a form of J. vorticosus with the third elytral interstice very gradually

widened towards the base and the dense ochreous streak continued along it to near

the apex. M/. macrogrammus was found in abundance at Cerro Zunil and is contained

in most collections from Guatemala. The single specimen from Guanajuato has the

sides of the prothorax strongly rounded from the base. The anterior femora some-

times have indications of a small tooth.

21. Madarus bilineatus, sp.n. (Tab. XIX. fig. 7, 3.)

Very like M. macrogrammus, but almost bare above (the ochreous vitta on the third elytral interstice

excepted), the scales on the under surface and legs very small and inconspicuous; the upper surface

a little smoother; the rostrum of the 2 with the apical portion abruptly narrowed and almost smooth ;

the anterior tarsi of the ¢ slightly dilated and hairy, the anterior tibiz also with long hairs within.

Length 53-64, breadth 21-2 millim. (¢ 2.)

Hab. Mexico, Playa Vicente (Sallé), Cordova (Hége); GuaTeMALA, Chacoj in

Vera Paz (Champion); Nicaracua, Chontales (Belt), Managua (Solari); Costa Rica,

Talamanca, Reventazon (Biolley) ; Panama, Bugaba (Champion).

Numerous examples. ‘This insect bears exactly the same relation to MZ. macro-

grammus as does M. distigma to M. vorticosus, and it is not improbable that all four

of them may have to be treated eventually as forms of one variable species. For the

present, however, it is best to keep them separate. ‘The scales are wanting on

the upper surface (the streak or vitta on the third elytral interstice excepted) in

M. distigma, M. bilineatus, and AZ. bistrigellus, but this does not appear to be due

to abrasion. The elytral vitte in the present species vary in length, sometimes not

extending beyond the middle.

29. Madarus excavatus, sp.n. (Tab. XIX. figg. 8, 8a, ¢.)

Somewhat fusiform, shining, piceous; clothed above with scattered, rather coarse, whitish scales, which are

condensed on the prothorax into a submarginal stripe and on the elytra into various irregular sub-

confluent streaks and spots (a spot at the base of the 3rd and 9th interstices, a streak at the middle

of the 4th, and a spot near the apex, being perhaps the most conspicuous) ; the under surface and legs

also set with small, hair-like, whitish scales, the metathoracic episterna with a dark streak of coarser

scales. Head finely punctate, transversely impressed between the eyes; rostrum ( ¢ ) strongly arcuate,

longer than the head and prothorax, gradually thickened towards the base, closely punctate, becoming

smoother towards the tip, (@ ) smooth, slender, and less curved, with the short basal portion abruptly

thickened and punctate, the antenne inserted at about the basal fourth or fifth in the two sexes.

Prothorax rather broader than long, rounded at the sides, rapidly narrowed and feebly constricted in

front; sparsely, very finely punctate on the disc, obliquely strigose on the flanks. Elytra triangular,

broadly, transversely excavate on the disc anteriorly; sharply, narrowly striate, the interstices with

scattered very minute punctures. Pygidium transverse, vertical in ¢. Beneath ragosely, a broad space

down the middle sparsely and finely, punctate. Prosternum with a transverse impression in front, in

the ¢ abruptly sloping from the broad, flattened, smoother intercoxal space. All the femora feebly

dentate. Anterior tarsi in the ¢ clothed with projecting pallid bristly hairs. .

Length 43-5, breadth 2-23 millim. (¢ 9.)

Hab. Panama, Caldera in Chiriqui, Taboga I. (Champion).

376 RHYNCHOPHORA.

One pair. The broadly excavate elytra and the interruptedly reticulate arrangement

of the vestiture readily distinguish Jf. excavatus. The rostrum is very differently

formed in the two sexes, it being abruptly smooth and slender from the thickened

basal portion in the female. ‘The markings at the base of the elytra form a common

irregular angulated fascia.

23. Madarus fusiformis, sp.n. (Tab. XIX. figg. 9, 9a, 3.)

Subfusiform, shining, nigro-sneous, the antennal scape and the tips of the tarsi ferruginous; the prothorax

with a broad space along the sides, and the elytra with an irregular fascia at the base, an angulate,

narrower fascia beyond the middle, and several small scattered spots, clothed with oblong ochreous

scales; the rugose portions of the under surface also set with similar scaies. Head closely punctate,

transversely depressed between the eyes; rostrum stout, arcuate, about as long as the head and

prothorax, closely, rugosely punctate, the antenne inserted near the middle, joints 3-7 of the funiculus

rapidly widening outwards, 7 as wide as the club. Prothorax broad, transverse, rounded at the sides

anteriorly, constricted in front; closely punctate, rugose at the sides. Elytra triangular, not wider

than the prothorax, slightly depressed at the base; narrowly striate, the interstices roughly uniseriate-

punctate. Pygidium large, prominent. Beneath rugosely punctate, except along the broad, shining,

sparsely punctate, bare median space; first ventral segment depressed down the centre. Prosternum

abruptly sloping from the wide, flattened, intercoxal space, bifoveate in front. Legs rugose; femora

sublinear, unarmed; anterior tarsi slightly dilated and hairy.

Length 41, breadth 17 millim. (<¢.)

Hab. Mexico, Chilpancingo in Guerrero (£6ge).

One male. Not unlike MW. excavatus ; the elytra more rapidly narrowed from the

base, simply flattened on the disc, and with the rather coarse vestiture differently

arranged; the rostrum much shorter; the prothorax more closely punctate; the

femora unarmed; the pygidium larger and more prominent.

24, Madarus bisulcatus, sp.n. (Tab. XIX. figg. 10, 10a, 2.)

Oblong, subcuneiform, very shining, nigro-piceous; the elytra with a few narrow, hair-like, white scales,

which are condensed into faint spots at the base, a short streak behind the scutellum, and a curved

median fascia ; the under surface with scattered smaller white scales along the sides, the scales clustered

into a short streak on the metathoracic episterna. Head sparsely, minutely punctate, transversely

grooved between the eyes; rostrum strongly arcuate, about as long as the head and prothorax, thickened

and compressed towards the base, the basal portion rather coarsely punctate laterally, for the rest almost

smooth, the antenne inserted behind the middle. Prothorax transverse, rounded at the sides anteriorly,

strongly constricted and tubulate in front; almost smooth, the flanks faintly aciculate. Scutellum

triangular, small. LElytra subcuneiform, blunt at the tip, transversely depressed anteriorly ; obsoletely

striate, the stri scarcely traceable on the inner part of the disc, the first becoming sharply defined

beyond the middle, the interstices smooth and flat, the third raised at its point of termination.

Pygidium small, transverse, subvertical. Meso- and metasternum and first ventral segment rather

coarsely punctate at the sides, the rest of the under surface almost smooth. Prosternum with two

narrow sulci, the intercoxal portion about as wide as the coxe and hollowed anteriorly. Anterior

_ femora dentate, the others shallowly suleate. .

Length 4-42, breadth 14-2 millim. ( 9.)

Hab, GvatemaLA, Senahu and Cahabon in Alta Vera Paz (Champion).

MADARUS.—MADARELLUS. 377

Two females. Smoother and more rapidly narrowed posteriorly than JZ. ochreo-

guttatus, the vestiture still sparser, the intercoxal portion of the prosternum hollowed

anteriorly, the inner strie of the elytra (the first excepted) scarcely traceable, the

anterior femora feebly dentate.

25. Madarus ochreoguttatus, sp.n. (lab. XIX. figg. 11, lla, 2.)

Oblong, subelliptic, shining, piceous; the sides of the prothorax and the entire under surface (except along

the median third) clothed with scattered narrow ochreous scales, the similarly-coloured vestiture of the

elytra mainly condensed into a dense spot at the base of each of the 3rd and 7th interstices and an

angulate median fascia (extending from the 3rd to the 8th stria), the metathoracic episterna also with a

dense ochreous streak. Head very finely punctate, transversely grooved between the eyes; rostrum

strongly arcuate, rather longer than the head and prothorax, the basal half stout, closely punctate at the

sides, the apical half more slender and almost smooth, the antenne inserted at a little behind the middle.

Prothorax transverse, gradually narrowing from the base, constricted in front ; sparsely, minutely

punctate on the dise, obliquely strigose at the sides. Scutellum small, subtriangular. Elytra oblong-

subtriangular, transversely depressed on the dise anteriorly ; finely striate, the outer stric distinctly

punctate, the interstices sparsely, minutely punctate, flat to near the apex, where they are narrowly

costate. Pygidium small, transverse, subvertical. Beneath coarsely punctate along the sides, the bare

median portion very much smoother, the flanks and anterior half of the prosternum rugose; the pro-

sternum with two narrow sharply-defined sulci extending backward to the moderately broad flattened

intercoxal space. Femora subclavate, unarmed.

Length 5-54, breadth 23-27 millim. (Q.)

Hab. Mexico, Toxpam in Vera Cruz (Sa/lé).

Two females. ‘The prothorax in this insect (at least in the female) is a little less

dilated than in the allied forms. The ochreous median fascia and the two spots at

the base of each elytron are sharply defined. The prosternum has two narrow sulci

as in Wf. bisulcatus. | _

MADARELLUS.

Madarellus, Casey, Ann. N. York Acad. Sci. vi. pp. 466, 540 (1892) ; vii. p. 603.

The type of this genus is the N.-American M. undulatus (Say) and various other

species have since been added by Casey and Solari; Madarus ebenus (F.), M. laticollis

and M. singularis, Boh., and Baridius impressus and B. fasciatus, Kirsch, also

belong here. Madarellus is connected with Madarus by intermediate forms; but it

ig convenient to retain the name for various moderate-sized or small, glabrous, species

with a comparatively short, abruptly tubulate prothorax, uneven elytra, bisulcate

prosternum, and sulcate femora, the anterior pair invariably with a conspicuous tooth

or angular dilatation. With the exception of M. jalapanus, they are all somewhat

cuneiform in shape, due to their relatively broad, transversely convex prothorax.

The prosternal sulci are parallel or obiique, and sometimes confluent (as in Madarus

illustris), receiving the base of the antenne in repose. The Central-American forms

are somewhat numerous and difficult to separate satisfactorily.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, November 1908. 3 CC

378 RHYNCHOPHORA.

a. Body more or less cuneiform.

a’. Elytra immaculate.

a’. Prothorax concolorous with the elytra.

a’. Elytra obsoletely or faintly striate on the disc.

a’. Femoral tooth long and stout: species large ( length over

5mm.) . 2. 2. ee ee ee ee

. Femoral tooth short, sqbtriangolar's species sitter (length

under 5 mm.),.

a’. Basal process of the prosternum binodose anteriorly .

b°. Basal process of the prosternum flattened

b*. Elytra deeply striate throughout ; femoral tooth sharp.

c'. Elytra very uneven; prothorax strongly strigose at the sides .

d'. Elytra less uneven; prothorax moderately strigose at the

sides. . . os : ‘

oe very finely striate thr oughout ; femoral tooth triangular.

*, Body eneous . . 1 wee ee ee

Q Body black . 2 6. 1 1 ee ee ee

6°, Prothorax rufescent, elytra black, the latter narrowly striate ;

femoral tooth short and broad . . . . 2 oe ew

hie rufo-maculate, narrowly striate ; femoral tooth sharp.

. Basal process of the prosternum closely, uniformly punctate

d°’, Basal process of the prosternum sparsely, finely punctate .

c’. Elytra rufescent, faintly fusco-maculate, narrowly striate ; prothorax

rufescent, smooth ; femoral tooth sharp . .

6. Body elliptic, black; elytra sharply striate ; femoral tooth bluntly

triangular

1. Madarellus inzqualis, sp. n.

Madarus inequahs, Chevr. in |itt.

(Tab. XIX. figg. 12,

Broad, robust, cuneiform, very shining, black, sometimes with a faint brassy lustre ;

tures of the under surface and legs each bearing a very minute ochraceous scale.

rostrum as long as or a little longer than the head and

transversely depressed between the eyes ;

inequalis, sp. n.

eruptus, sp. 0.

dilutus, sp. n.

impressus, Kirsch.

cuneatus, Casey.

meaicanus, Solari.

striatulus, sp. n.

puniceicollis, sp. n.

rufomaculatus, sp. n.

quadrigutiatus, sp. n.

levicollis, sp. n.

jaiapanus, sp. D.

12 a, 3.)

glabrous above, the punc-

Head finely punctate,

prothorax, very stout, strongly arcuate, closely punctate, the antenng inserted at about the middle.

Prothorax transversely convox, broad, somewhat rounded at the sides, abruptly narrowed and tubulate

in front; almost smooth on the disc, obliquely strigose and finely punctate at the sides, the basal margin

with a row of fine punctures.

Elytra triangular, very uneven (the transverse basal excavation deep and

the subapical callosities prominent); finely punctate-striate, the stria 2-4 partly obliterated on the disc,

the interstices flat and almost smooth. Pygidium densely punctate.

Beneath coarsely and closely, a

broad space down the middle of the metasternum and abdomen sparsely and finely, punctate, the

propleura obliquely rugose.

cox widely separated. Legs rugosely punctate ;

Prosternum with two short longitudinal sulci near the apex.

femora sulcate beneath, the anterior pair armed with

a stout, oblique, truncated tooth and sometimes with a smaller tooth on the opposite ridge in a line

with it, the other femora also with a small tooth, all faintly serrulate between this and the base ;

anterior tibie widened on the inner edge from about the basal third; anterior tarsi slightly dilated

and hairy 1 in the g.

Length 5;4,-63, breadth 23-31 millim.

(d 2.)

MADARELLUS. 379

Hab. Mexico (Mus. Brit.), Toxpam (Sailé), Cordova (Hége), Temax in Yucatan

(Gaumer); Guatemala, San Gerénimo (Champion).

This species is contained in most collections from Mexico and it has long been

known under Chevrolat’s MS. name. J. inewqualis is closely related to the South-

American and Antillean* J. laticollis, Boh., from which it differs in its rather

larger size, the stouter rostrum, the more rugose propleura and legs, and the less

excavate sides of the prothorax in front in the male, the excavation in M. laticollis

being limited by a distinct prominence in that sex.

2. Madarellus eruptus, sp. n.

Cuneiform, very shining, nigro-piceous, with a distinct aneous lustre, almost glabrous. Head very finely

punctate, transversely depressed between the eyes; rostrum rather longer than the head and prothorax,

strongly arcuate, moderately stout, the basal portion thickened and coarsely punctate laterally, the

longer apical portion abruptly flattened and faintly punctate, the antenns inserted behind the middle.

Prothorax transversely convex, almost as wide as the elytra, rounded at the sides anteriorly, the

tubulate apical portion narrow; the surface with widely-scattered excessively minute punctures,

the flanks faintly strigose. Elytra subtriangular, depressed at the base, on the outer part of the disc

beyond the middle, along the suture anteriorly, and at the sides below the humeri, the subapical

callosities very prominent; finely striate, the striw faintly punctate, the interstices flat, angularly-raised

at the apex, each with a single row of excessively minute punctures. Pygidium transverse, closely

punctate. Beneath coarsely punctured along the sides, the propleura obliquely strigose, the median

portion of the pro- and metasternum and the ventral segments very sparsely, finely punctate.

Prosternum with two confluent sulci, the broad basal process binodose and somewhat abruptly declivous

anteriorly. Anterior femora with a short, broad, triangular tooth. Anterior tibiz sinuous, dilated on

the inner edge beyond the middle.

Length 33-44, breadth 13-23 millim. (9.)

Hab. Panama, Volcan de Chiriqui (Champion).

Two specimens. A very shining form, with an almost smooth prothorax, finely

striate, uneven elytra, an abruptly flattened rostrum (in the female), and a short

broad tooth to the anterior femora, the basal process of the prosternum hollowed and

binodose between the widely-separated anterior coxe f.

3. Madarellus dilutus, sp. n.

Cuneiform, shining, fusco-castaneous, the legs and rostrum nigro-piceous, almost glabrous. Head finely

punctate, transversely grooved between the eyes ; rostrum a little longer than the head and prothorax,

strongly and regularly arcuate, stout, thickened towards the base, closely punctate, the antenne inserted

at about the middle. Prothorax transversely convex, rounded at the sides anteriorly, the tubulate

apical portion narrow; the surface with excessively minute, widely-scattered punctures, the flanks

finely, obliquely strigose and more distinctly punctate. Elytra subtriangular, depressed at the base, on

the outer part of the disc beyond the middle, along the suture anteriorly, and at the sides below the

humeri; finely striate, the strie faintly punctate, the inner ones (the first excepted) almost obsolete

on the inner part of the disc, the interstices flat, angularly raised at the apex, each with a row of

excessively minute punctures. Pygidium transverse, closely punctate. Beneath coarsely, the ventral

* T have seen a long series of this insect from St. Vincent, Grenada, &c.

+ Much as in the males of the species of Glyptobaris.

3 CC 2

380 RHYNCHOPHORA.

segments 2-5 sparsely and more finely, punctate, the propleura obliquely strigose. Prosternum with

two confluent sulci, the broad basal process flattened and somewhat abruptly declivous anteriorly.

Femora sulcate, the anterior pair armed with a triangular tooth and a smaller tooth in a line with it on

_ the opposite ridge beneath. Anterior tibie sinuous, dilated from a little beyond the middle to the apex.

Anterior tarsi with a few bristly hairs.

Length 34-4, breadth 2 millim. (¢.)

Hab. Guatemata, Las Mercedes, Pacific slope (Champion).

Two males. Very like UM. eruptus, but with a less polished surface, the rostrum

(3) stout and regularly arcuate, the inner dorsal strie of the elytra less distinct, the

subapical callosities less prominent, the basal process of the prosternum flattened.

4, Madarellus impressus.

Baridius impressus, Kirsch, Berl. ent. Zeitschr. 1869, p. 212’.

Hab. GuateMaLa, San Gerénimo in Vera Paz, Zapote (Champion); Panama, San

Miguel in the Pearl Is. (Champion).—CotomB1a, Bogota?.

Of this species we have obtained six specimens from our limits, agreeing with the

type communicated by Dr. Heller. Distinguishable amongst the small allied forms

by the very uneven, deeply striate elytra, the conspicuously strigose outer portion of

the disc of the prothorax, and the rugosely punctate legs and under surface. The

anterior femora have a stout, subtriangular tooth, and the other femora are obsoletely

dentate. The prosternal sulci are confluent, together forming a broad subtriangular

excavation.

5. Madarellus cuneatus.

Madarellus cuneatus, Casey, Ann. N. York Acad. Sci. vii. p. 603 (1893) °.

Madarellus caseyi, Solari, Ann. Mus. Genova, xlii. p. 424 (1906) *.

Hab. Nortu America, San Antonio! and Brownsville, Texas.—MeExico (Mus. Brit.),

Teapa (Hége), Temax in N. Yucatan ( Gaumer); Britisa Honpvras 1, Belize, Rio

Hondo (Blancaneaux); GuaTEMALA, Zapote (Champion) ; Nicaragua, Tipitapa, Lake

Managua ° (Solari).

M. cuneatus and M. caseyi were each described from a single specimen, the latter

(kindly communicated by Signor Solari) having the prothorax more distinctly punctate

than in the Texan d/. cwneatus, for examples of which we are indebted to Capt. Casey

and Mr. Wickham, and the U.S. National Museum. The long series from

Yucatan before me shows that the present species is very variable in size, and the

prothorax is sometimes convex and broader than the elytra, and rather coarsely

punctate, the line of punctures along the basal margin being always distinct. The

tooth on the anterior femora is stout and rather long. The anterior tibie are widened

at about the middle within. The prosternal sulci are sometimes confluent. The

MADARELLUS. 381

upper surface varies in colour from nigro- to rufo-piceous, and usually has a bright

brassy lustre. The elytra are depressed at the base, on the disc beyond the middle,

along the suture anteriorly, and at the sides below the humeri, and have sharply-cut,

distinctly punctate strie. The length varies from 23-32, and the breadth from

1-2 mm.

6. Madarellus mexicanus.

Madarellus mexicanus, Solari, Ann. Mus. Genova, xlii. p. 426 (1906) °.

Hab. Mexico, Jalapa * (Hége +).

This species is represented in our collection by a very small reddish specimen

(length 24 mm.) from Jalapa, the types (which I have seen) being much larger and

broader. It may be known by the brilliant eneous surface and the finely striate

elytra, the prothorax with very minute widely-scattered punctures on the disc. The

tooth on the anterior femora is stout and subtriangular. ‘The striz are almost as fine

as in WV. striatulus, and faintly punctate.

7. Madarellus striatulus, sp. n.

Cuneiform, shining, black, the tarsi sometimes ferruginous, the punctures of the under surface and legs each

bearing an excessively minute whitish scale. Head sparsely, very finely punctate, transversely grooved

between the eyes; rostrum strongly arcuate, stout, about as long as the head and prothorax, closely

punctate, the antenne inserted behind the middle. Prothorax transversely convex, rounded at the sides

anteriorly, tubulate in front; almost smooth, the lateral portions finely, obliquely strigose. Elytra

subtriangular, strongly, transversely depressed at the base and at the sides before and beyond the

middle ; very finely and lightly striate throughout, the strie almost impunctate, the interstices smooth.

Pygidium transverse, densely punctate. Beneath coarsely, a broad space down the middle sparsely and

finely, punctate, the propleura obliquely strigose. Prosternum with two sulci. Legs rugosely punctate ;

anterior femora with a triangular tooth; anterior tibis sinuate within ; anterior tarsi slightly dilated

and hairy in the ¢.

Length 22-3, breadth 13-14 millim. (¢ ?.)

Hab. Guatemata, Livingston (Barber, in US. Nat. Mus.), Cahabon (Champion) ;

Panama, Volcan de Chiriqui (Champion).

One specimen from each locality. In this species the elytra are very finely and

lightly striate throughout, a character distinguishing MW. striatulus from nearly all the

allied forms here enumerated. ‘The upper surface is black, as in MM. tmpressus,

Kirsch, and the transverse basal depression of the elytra is deep and abrupt.

8. Madarellus puniceicollis, sp.n. (Lab. XIX. figg. 13, 13a, ¢ .)

Cuneiform, shining, black, the prothorax, and in one specimen the under surface in part, rufous, almost

glabrous. Head finely punctate, transversely grooved between the eyes ; rostrum a little longer than the

head and prothorax, moderately stout, thickened towards the base, finely punctate, the apical half

* The dealer’s locality given by Solari, “ Sierra de Durango,” is almost certainly incorrect, the insect

doubtless being from Vera Cruz.

382 RHYNCHOPHORA.

smooth and polished in the 2, the antenne inserted just behind the middle. Prothorax much broader

than long, transversely convex, rounded at the sides anteriorly, abruptly narrowed in front; sparsely,

minutely punctate, finely strigose on the outer part of the disc, and with a row of coarser punctures

along the basal margin. Elytra triangular, depressed at the base, along the suture anteriorly, on the

middle of the disc, and at the sides below the humeri; sharply, finely striate, the strie distinctly

punctate, the interstices almost smooth, angularly raised at the apex. Pygidium strongly transverse,

finely punctate, somewhat concave. Beneath coarsely punctate along the sides, the propleura obliquely

strigose, the ventral segments sparsely, finely punctate. Prosternum bisulcate anteriorly, the space

between the sulci flattened and depressed, the broad basal process abruptly declivous in front and in the

3 transversely tumid. Anterior femora with a broad subtrianguiar tooth, the intermediate pair

obsoletely dentate. Anterior tibie sinuous, slightly widened in their outer half. Tarsi slender, the

anterior pair feebly dilated and hairy in the ¢.

Length 23-4, breadth 14-2 millim. (¢ 9.)

Hab. GuaTeMALA, Duefias and Calderas on the slope of the Volcan de Fuego

(Champion).

One pair, the female much larger than the male. ‘This species has the prosternum

formed much as in the N.-American J. undulatus (Say) (2), specimens of which

sometimes have a red prothorax; but the elytra are rapidly narrowed from the base,

the tarsi are more slender, the anterior femoral tooth is less acute, &c. M. rujicollis,

Solari, from Peru, is another similarly-coloured form. ‘The form of the prosternal

process of the male separates M. puniceicollis from most of its allies.

9. Madarellus rufomaculatus, sp.n. (Tab. XIX. fig. 14, °.)

Cuneiform, shining, nigro-piceous with a faint brassy lustre, the elytra with a spot on each shoulder, and

another on the dise towards the apex, rufous, the rufous coloration sometimes extending over the greater

part of their surface, the legs usually more or less rufescent; the punctures on the under surface and

legs each bearing an excessively minute whitish scale. Head very sparsely, minutely punctate,

transversely grooved between the eyes ; rostrum stout, strongly arcuate, a little longer than the head

and prothorax, closely punctate, the apical portion smoother inthe ¢. Prothorax transversely convex,

rounded at the sides, abruptly narrowed and tubulate in front, the sides rounded anteriorly ; very

sparsely, minutely punctate, and with a line of coarser punctures along the basal margin; the lateral

portions obliquely strigose. Elytra subtriangular, transversely depressed at the base and at the sides

before and beyond the middle; sharply, finely striate, the interstices smooth and flat. Pygidium densely

punctate. Beneath closely punctate (the basal process of the prosternum included), the punctures very

coarse along the sides, the propleura obliquely strigose. Prosternum with two shallow sulci. Legs

rugosely punctate; anterior femora with a triangular tooth; anterior tibis sinuous, dilated on the

inner side beyond the middle.

Length 2-3, breadth 1-13 millim. (¢ 2.)

Hab. British Honpuras, Belize, Rio Hondo (Blancaneaur); Guatemata, Teleman

(Champion), Trece Aguas (Schwarz and Barber, in U.S. Nat. Mus.); Panama, David

(Champion).

Twelve specimens, varying greatly in size and in the extent of the rufous coloration

of the elytra, the four red spots are, however, always conspicuous. J. rufomaculatus

approaches JM. cuneatus, but may be known from it by the more narrowly striate

elytra, the triangular femoral tooth, and the dense uniform punctuation of the basal

process of the prosternum.

MADARELLUS. 383

10. Madarellus quadriguttatus, sp. n.

Cuneiform, shining, black with a faint «neous lustre, the elytra each with a spot on the shoulder and another

near the apex (almost connected along the outer part of the disc), and the antenne, tibia, and tarsi in

part, ferruginous; the punctures on the legs and under surface each bearing a minute whitish scale.

Head finely punctate, transversely grooved between the eyes; rostrum stout, arcuate, as long as the

head and prothorax, closely punctate, the apical half smoother and somewhat flattened, the antenne

inserted behind the middle. Prothorax transversely convex, rounded at the sides anteriorly, tubulate in

front; the surface with widely scattered minute punctures, the lateral portions finely, obliquely strigose.

Elytra rather long, subtriangular, transversely depressed at the base and at the sides before and beyond

the middle; sharply, narrowly striate, the striew feebly punctate, the interstices smooth. Pygidium

densely punctate. Beneath coarsely, a broad space down the middle sparsely and finely, punctate, the

propleure obliquely strigose. Prosternum with two oblique confluent sulci. Legs rugosely punctate ;

anterior femora with a triangular tooth; anterior tibie sinuous within.

Length 33, breadth 13 miliim. ( 2.)

Hab. Mexico (ex coll. Flohr).

One specimen. Very like WZ. rufomaculatus, but with the elytra a little longer, the

strie not so fine, the basal process of the prosternum and the median portion of the

metasternum and abdomen very sparsely finely punctate.

11. Madarellus levicollis, sp. n. (Tab. XIX. figg. 15, 15a, 2.)

Cuneiform, shining, ferruginous, the elytra with the scutellar region and a transverse patch on the disc beyond

the middle slightly infuscate; the punctures on the under surface and legs each bearing an excessively

minute whitish scale. Head sparsely, minutely punctate, transversely grooved between the eyes;

rostrum strongly arcuate, stout, a little longer than the head and prothorax, closely, finely punctate, the

antennz inserted at the middle. Prothorax transversely convex, narrowly and abruptly tubulate in

front, the sides rounded anteriorly ; smooth, the lateral portions feebly strigose. Elytra subtriangular,

depressed at the base and at the sides before and beyond the middle; finely striate, the striz obsoletely

punctate, the interstices smooth. Pygidium strongly transverse, densely punctate. Beneath closely, a

broad space down the middle sparsely and finely, punctate. Prosternum with two curved sulci. Legs

rugosely punctate; anterior femora with a triangular tooth; anterior tibie sinuous within.

Length 23, breadth 12 millim. (@ ?)

Hab, GuateMaua, Capetillo (Champion).

One specimen. Distinguishable by its rufous colour, almost smooth, transversely

convex prothorax, and finely striate, submaculate elytra, the under surface with a broad

space down the middle sparsely punctate.

12. Madarellus jalapanus, sp. n.

Oblong, elliptic, shining, black, almost glabrous. Head finely punctate, transversely grooved between the

eyes; rostrum strongly arcuate, a little longer than the head and prothorax, thickened and closely

punctate at the base, the longer apical portion smooth and moderately stout, the antenne inserted at

about the basal third. Prothorax transverse, gradually and arcuately narrowing from the base,

constricted and tubulate in front; almost smooth on the disc, the lateral portions finely strigose, the

base with a row of punctures along the margin. Llytra subtriangular, moderately long, transversely

depressed at the base, behind the shoulders, and at about the middle of the disc; sharply striate, the

strie obsoletely punctate, the interstices smooth. Pygidium transverse, closely punctate. Beneath, a

broad smoother space down the middle excepted, sparsely punctate, the punctures on the sides of the

384 RHYNCHOPHORA.

metasternum coarse, the propleura finely, obliquely strigose. Prosternum with two shallow oblique

sulci. Femora shallowly sulcate, the anterior pair broadly, feebly dentate. Anterior tibiew sinuous,

slightly dilated beyond the middle within.

Length 32, breadth 14 millim. ( 9.)

Hab. Mexico, Jalapa (J. 7. Mason, in U.S. Nat. Mus.).

One female. Differs from the small allied species in its oblong, elliptic form (7. é. in

having the prothorax less dilated) and somewhat elongate elytra. The anterior

femora are angularly dilated rather than toothed.

ACANTHOMADARUS, gen. nov.

Rostrum very stout, strongly arcuate, about three-fourths the length of the body, the antenne inserted beyond

the middle, the scrobes confluent beneath and continued as a deep sulcus to the base; mandibles stout,

notched within, strongly decussate; head globose, rather small; eyes finely facetted, moderately large ;

prothorax subquadrate, very abruptly narrowed and tubulate in front, deeply bisinuate at the base, the

median lobe impinging on the narrow cresceuatiform scutellum; elytra oblong-subtriangular, not wider

than the prothorax; pygidium large, fully exposed, subvertical; prosternum declivous, unimpressed in

front, the basal process armed with a very large, erect, compressed, conical protuberance ; anterior coxe

widely separated; mesothoracic epimera large, partly visible from above; meso- and metasternum

connate, the narrow exposed portion of the former on the same plane as the latter; legs short; femora

moderately clavate, unarmed ; tibie strongly unguiculate ; tarsi rather slender, the claws long, narrowly

separated at the base; body robust, oblong or cuneiform, glabrous, polished.

Type, A. dirus.

This genus includes a single species, remarkable on account of the stout, erect,

conical protuberance on the basal process of the prosternum and the anteriorly dilated

sides of the prothorax. A. dirus has somewhat the facies of Ganymela nitida, Pasc.,

but it is closely related to Madarus.

1. Acanthomadarus dirus, sp.n. (Tab. XIX. figg. 16, 16a, ¢.)

Cuneiform (¢) or oblong (2), nigro-piceous or black, very shining. Head very sparsely, finely punctate,

transversely grooved between the eyes ; rostrum sparsely punctate, shallowly sulcate at the sides, a little

smoother in the 9, the antenne inserted at about the apical three-fifths, the joints of the funiculus

stout and closely articulated, widening outwards, the club acuminate-ovate. Prothorax transverse,

parallel at the sides to near the apex and then abruptly narrowed, the angle thus formed obliquely

truncated or obtusely produced; the surface with very fine, widely scattered punctures. Elytra

moderately long, concave and somewhat uneven on the disc, and more or less depressed along the suture,

the subapical callosities prominent; very finely punctate-striate, the striae scarcely visible on the disc

(the sutural one excepted), the interstices flat and with a few scattered excessively minute punctures.

Pygidium densely punctate. Beneath sparsely punctate, the declivous portion of the prosternum with

coarse foveiform impressions. Anterior tibia sinuate within, strongly unguiculate at the oater apical

angle and with a small tooth at the inner apical angle.

Length 64-74, breadth 22-3} millim. (¢ 9.)

Hab. Panama, Bugaba, Tolé (Champion).

Three specimens: the two from Bugaba (¢ ?) have a broad, strongly transverse

prothorax, with the swollen subapical lateral portion obliquely truncated; the one from

Tolé (2%) has a rather smoother rostrum, and a narrower, less transverse prothorax,

ACANTHOMADARUS.—LOBODERES. 385

with the swollen subapical lateral portion produced into a stout tuberculiform

prominence. It is hardly likely that the insects from these two localities belong to

different species, and they are therefore treated as sexes of one, that from Bugaba

being regarded as the type.

LOBODERES.

Loboderes, Schonherr, Gen. Cure. ili. p. 796 (1836) ; Lacordaire, Gen. Col. vil. p. 228.

Epilobaspis, Chevrolat, Ann. Soc. Ent. Fr. (5) vii. p. 101 (1877).

Schénherr included two species in this Tropical-American genus, and it is probable

that various others are contained in collections, in addition to the three now added.

The typical forms have the entire under surface densely flavo-squamose, and the

antenne of the male remarkably formed *. Lacordaire placed Loboderes amongst the

‘“‘ Eurhinides,” but they are obviously nearly related to M/adarus, from which they differ

in their shorter and stouter rostrum, peculiarly formed male antenne, and narrower

form. The basal process of the prosternum is largely developed, covering the

mesosternum, and it is on the same plane as the metasternum.

1. Loboderes flavicornis. (Jab. XIX. figg. 17, 17a, b, ¢ ; 18, @.)

Loboderes flavicornis, Boh. in Schénh. Gen. Cure. iii. p. 798(3)'; vil. 1, p. 274 (fb 2)? 3 Lacord.

Gen. Col. vii. p. 223, nota’.

g. Antenne testaceous or rufo-testaceous, scape alutaceous and broadly dilated from near the base to the

apex, joints 2-7 of the funiculus very short, widened, perfoliate, and closely setose, club oblong-ovate,

flattened, strongly articulated, blunt at the tip (fig. 17 6).

Hab. Mexico, Vera Cruz? (coll. Solari); Brivis: Honpvras, Belize (Blancaneauz) ;

GuatemaLa, Livingston (Schwarz and Barber, in UWS. Nat. Mus.), Cahabon in Vera

Paz (Champion); Nicaragua, Chontales (Lelt); Panama, Bugaba, Caldera (Champion).

—Braziu 173,

Found in numbers at Cahabon and Bugaba. The male of this insect is easily

recognizable by the extraordinary structure of the antenne. The entire under surface

is densely flavo-squamose in both sexes.

2. Loboderes sulphureiventris, sp.n. (Tab. XIX. figg. 19,194, 6, 3.)

Oblong, subfusiform, robust, glossy-black ; glabrous above, beneath (a space down the middle of the meta-

sternum and abdomen, and the second ventral segment, excepted) densely clothed with small sulphur-

yellow scales. Head finely punctate, transversely depressed between the eyes; rostrum very stout,

curved, not longer than the prothorax, striate and closely punctate, the antenn inserted near the tip in

the g¢. Prothorax conical, as long as broad, closely, finely punctate. LElytra oblong-subtriangular,

finely lineato-punctate, striate along the suture and at the sides, the interstices flat, sparsely, very

* The Brazilian genus Loboderinus, Solari, the type of which, Z. clavatus, has an abnormally formed

antennal club in the ¢ and the entire under surface densely flavo-squamose, does not seem to me to belong

to this section, the basal process of the prosternum being less developed, the scutellum large, free, and

squamose, the tarsi slender and with narrowly lobed third joint, &e.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, November 1908. 3DD

386 RHYNCHOPHORA.

minutely punctate. Pygidium rugosely punctate, convex in the ¢. Prosternum: obsoletely sulcate

towards the apex, the basal process flattened and somewhat explanate laterally, feebly tuberculate

behind each coxa, and emarginate behind.

¢. Antenne (fig. 19 a) with the scape clavate at the apex (as in the 2), joints 4-7 of the funiculus very short,

widened, perfoliate, and setose, the club very large, flattened, oblong, and nearly as long as the funiculus ;

anterior tarsi hairy and slightly dilated; anterior tibie (fig. 19 b) obliquely truncate at the apex within,

the claw very small; metasternum and abdomen sparsely squamose down the middle, the first ventral

segment shallowly sulcate. ; ;

9. Antenne with a large acuminate-ovate club, the joints of the funiculus neither dilated nor setose ;

metasternum and abdomen sparsely punctate and glabrous down the middle.

Length 5-52, breadth 2-22 millim. (¢ 2.)

Hab. Nicaragua, Chontales (Bel#: 9); Panama, Volcan de Chiriqui (Champion :

3 2).

One male and two females. Very like the Brazilian insect identified by me as

L. citriventris, Boh. ; but differing from it in the perfectly conical prothorax, the large,

oblong, flattened antennal club of the male, and the obliquely truncated apices of the

anterior tibize in this sex.

3. Loboderes crassirostris.

Madarus crassirostris, Pasc. Ann. & Mag. Nat. Hist. (5) vi. p. 184°.

Hab. Nicaraaua, Chontales 1.

The unique type of this insect is the female of a species of Lobdoderes with the

greater part of the vestiture of the under surface abraded, the prosternum only bearing

small yellow scales. The elytra are subtriangular, being more widened at the base

than in the allied forms, and the interstices are somewhat closely, minutely punctate.

The under surface is densely, finely punctate, the punctuation being very fine on the

meso- and metasternal side-pieces. ‘The basal portion of the prosternum is somewhat

tumid, and arcuate-emarginate behind. ‘The legs are clothed with very fine, hair-like,

yellow scales. ‘The antennal club is large, acuminate-ovate.

4. Loboderes glabriventris, sp.n. (Tab. XIX. figg. 20, 204, 2.)

Oblong, robust, subfusiform, glossy-black ; glabrous, a dense patch of small yellow scales at the sides of the

third and fourth ventral segments excepted. Head minutely punctate, transversely depressed between the

eyes; rostrum very stout, curved, about as long as the prothorax, sparsely punctate, striate at the sides,

the antenne inserted at about the middle, the antennal club very large, acuminate-ovate, nearly as long

as the funiculus. Prothorax as long as broad, conical, feebly constricted in front; closely, very finely

punctate. Elytra rapidly narrowing from the rounded humeri, finely lineato-punctate, the sutural and

outer strive only distinct, the interstices flat and with scattered very minute punctures. Pygidium large,

rugosely punctate. Beneath coarsely, a broad space down the middle of the metasternum and abdomen

sparsely and finely, punctate. Prosternum with a smooth triangular excavation at the apex, somewhat

tumid along the middle, the basal process abruptly flattened, concave in the middle, almost smooth, and

laterally margined, shallowly emarginate behind (fig. 20a). Tibise without visible uncus at the tip.

Length 63, breadth 23 millim. (@.)

Hab. Nicaragua, Chontales (Belt).

LOBODERES,—AMPELOGLYPTER. 387

One female. Very like the female of JZ. sulphureiventris, but with the under

surface almost glabrous, and more coarsely and less densely punctate (the punctures

on the mesosternal side-pieces large and scattered), the prosternum triangularly

excavate at the apex, the antennal club larger and longer. Narrower than L. crassi-

rostris, the intercoxal portion of the prosternum rather convex, the under surface more

coarsely punctate, the pro-, meso-, and metasternum quite bare.

RADAMUS.

Radamus, Kirsch, Berl. ent. Zeitschr. 1875, p. 276.

Two species from Peru were referred to this genus by Kirsch, one of them being now

known to extend into Central America. adamus is very closely related to Ampelo-

glypter, Lec., and both have basally connate tarsal claws; the prosternum, however,

in the present genus is broadly flattened or concave down the middle, and shallowly

sulcate or feebly bifoveate in front, and the basal process is greatly developed, so as to

completely cover the mesosternum.

1. Radamus atratus. (Tab. XIX. figg. 21, 21a, b, 3.)

Radamus atratus, Kirscit, Berl. ent. Zeitschr. 1875, p. 277 (¢?)°.

Ampeloglypter nitidus, Solari, Ann. Mus. Genova, xl. p. 428 (¢ ¢ ) (1906) *.

Hab. British Honpuras, Belize (Blancaneaux) ; GUATEMALA, La Tinta, San Gerénimo,

Zapote (Champion) ; Nicaragua, Managua? (Solari).—Puru ', Pozuzu.

In this insect the prosternum is narrowly and shallowly sulcate, or feebly bifoveate,

near the apex and broadly hollowed in the middle, so that the basal portion appears

to be transversely tumid. ‘The rostrum is stout and strongly arcuate in the male,

longer, smoother, straighter, and a little more slender in the female. The elytra are

finely and strongly punctate-striate. The type of 4. atratus, Kirsch, from Peru, is a

large female of the species described by Solari, who has kindly lent me his types for

examination. R. wreus, Kirsch, is larger than &. atratus and has the upper surface

geneous.

AMPELOGLYPTER.

Ampeloglypter, Leconte, Proc. Am. Phil. Soc. xv. p. 299 (Dec. 1876); Casey, Ann. N. York Acad.

Sci. vi. pp. 466, 547.

_ This genus includes Baridius ovalis, Boh., and various other American forms nearly

related to Madarellus, but with basally connate or subconnate tarsal claws. The pro-

sternal excavation is deep and sharply defined, and the basal process is not sufficiently

developed to completely cover the mesosternum. ‘The meso- and metasternum are

connate, and the faint transverse suture in A. speculifer is placed in a line with the

3 DD 2

la)

388 RHYNCHOPHORA.

middle of the intermediate coxe. The North-American species have more sharply

striate elytra than those from the more southern localities. ‘The Central-American

representatives may be separated thus :—

a. Prosternal excavation oblong-trapezoidal, extending backward between the

Coxe.

a’. Prothorax subconical. . . . . oe ew we el ee 6Ovalis, Boh.

6’. Prothorax with the sides subparallel at t the tase toe ew we el ee) 6Suleifrons, sp. 1.

b. Prosternal excavation oval, not extending backward between the coxz.

c. Body oval; elytra almost unimpressed on the disc, the humeri not

prominent . . Co ee ee ee ee ee ee ee Speculifer, Sol.

da’, Body subrhomboidal ; elytra flattened, and with rather prominent

humeri.

a’. Elytra faintly depressed at the base ; head shallowly sulcate beneath. binodosus, sp. n.

b°. Elytra uneven ; head deeply foveate beneath . . . - + + = + plicatipennis, sp. n.

1. Ampeloglypter ovalis.

Baridius ovalis, Boh. in Schénh. Gen. Cure. vili. 1, p. 150 -

Baridius inanis, Kirsch, Berl. ent. Zeitschr. 1875, p. 259°.

Ampeloglypter nicaraguensis, Solari, Ann. Mus. Genova, xlii. p. 480 (1906) °*.

Hab. British Honpvras, Rio Hondo (Blancaneaux: 2 ); GUATEMALA, San Gerdnimo

(Champion: ¢); Nicaragua, Managua* (Solari: ¢ ).—Cotomsia!, Carthagena; Perv?,

Pozuzu.

I have seen the types of the species described by Boheman, Kirsch, and Solari,

and am unable to separate them. The prosternal depression (into which the antennal

club is received in repose) is broad and deep, and it extends backward between the coxe

as in the N.-American A. ater and A. elongatus, Lec. The elytra (and sometimes

the prothorax also) are partly or almost entirely reddish-brown, and very finely striate,

the sutural stria shallowly catenulate-punctate. The rostrum is stout and arcuate,

longer in the female than in the male. ‘The length varies from 2-3 mm.

2. Ampeloglypter sulcifrons, sp. n.

Oblong, rather convex, very shining, black, glabrous. Head almost smooth, deeply, transversely suleate

between the eyes ; rostrum stout, arcuate, scarcely so long as the head and prothorax, the basal portion

sparsely punctate, the antenne inserted at about the middle, the club rather large. Prothorax transverse,

abruptly narrowed and tubulate in front, the sides rounded anteriorly and subparallel at the base; very

sparsely, minutely punctate and with a row of coarser punctures along the basal margin. Elytra a little

wider than the prothorax, transversely depressed at the sides below the humeri and beyond the middle ;

very finely striate, the striz faintly punctate, the interstices smooth. Pygidium transverse, short, finely

punetate. Beneath sparsely punctured, the punctures coarse along the sides. Prosternum with an

oblong-trapezoidal excavation extending backwards between the coxe, which are separated by considerably

more than their own width.

Length 22, breadth 13 millim. (<¢.-)

Hab. Guatemata, Chiacam in Alta Vera Paz (Champion).

AMPELOGLYPTER. 389

One male. Smaller and much smoother than the N.-American A. ater, Lec., the

anterior coxee more widely separated, the prosternal excavation narrower, the antennal

club larger.

3. Ampeloglypter speculifer. (Tab. XIX. figg. 22, 22a, 3.)

Ampeloglypter speculifer, Solari, Ann. Mus. Genova, xlii. p. 429 (1906) '.

Hab. Mexico (Truqui, in Mus. Brit.), Teapa (LH. H. Smith); Brititsn Honpuras, Rio

Hondo (Blancaneaux) ; GuatTemMALA, San Gerénimo and San Juan in Vera Paz

(Champion) ; Nicaragua, Managua! (Solar) ; Cosra Rica, Surubres (Biolley) ; Panama,

Bugaba, Taboga I. (Champion).

The types of this species, like the various specimens found by myself in Panama,

have the greater part of the under surface so densely punctate as to appear opaque, but

in the four examples from ‘“ Mexico,” Rio Hondo, and San Gerdénimo the puncturing

of this portion of the surface is more scattered and the narrow interspaces are shining.

The prosternal excavation is deep and oval in shape, but it does not extend backward

between the coxe. The elytral strive are a little more distinct than in A. ovalis.

4, Ampeloglypter binodosus, sp. n.

Oblong-subrhomboidal, somewhat flattened above, very shining, black, glabrous. Head minutely punctate,

transversely depressed between the eyes above and shallowly sulcate between them beneath; rostrum

strongly arcuate, rather slender, considerably longer than the head and prothorax, the basal portion

sparsely, finely punctate, the antenne inserted behind the middle. Prothorax transverse, conical,

constricted and tubulate in front; sparsely, minutely punctate. Hlytra a little wider than the prothorax,

subtriangular, transversely depressed below the base; finely punctate-striate, the striz very faint, the

interstices smooth. Pygidium transverse, small, densely punctulate. Beneath sparsely, rather finely

punctate. Prosternum broadly flattened down the middle and with a deep oval fovea in front, the basal

process sulcate and binodose. ‘Tarsal claws connate at the base.

Length 3, breadth 12 millim. ( 2.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One female. Smaller than A. plicatipennis; the elytra less uneven, with more

distinctly punctate striw, and the humeri not so prominent; the head not foveate

beneath ; the legs less elongate; the basal process of the prosternum distinctly

binodose.

5. Ampeloglypter plicatipennis, sp. n. (Tab. XIX. figg. 23, 23a, 2.)

Oblong-rhombvidal, somewhat flattened above, very shining, black, the antenne rufescent at the base, glabrous.

Head sparsely, minutely punctate, transversely depressed between the eyes above and deeply foveate

between them beneath; rostrum rather slender, arcuate, considerably longer than the head and prothorax,

the basal portion sparsely, finely punctate, the antennee inserted at about the middle. Prothorax

transverse, conical, abruptly constricted and tubulate in front; sparsely, minutely punctate. Elytra

rather long, subtriangular, wider than the prothorax, transversely depressed before and behind the

prominent humeri, at the ‘sides beyond the middle, and before the apex, the suture also depressed

anteriorly ; faintly punctate-striate, the second stria almost obliterated below the base, the interstices

390 RHYNCHOPHORA.

smooth. Pygidium densely punctate. Beneath sparsely punctate, the punctures coarse along the sides.

Prosternum broadly flattened down the middle and with a deep oval fovea in front, the basal process

shallowly sulcate and feebly binodose, not quite covering the mesosternum. Anterior coxe separated by

a little more than their own width. Legs rather elongate; tarsal claws subconnate at the base.

Length 32-34, breadth 1g-2 millim. (@.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

Two females. The subtriangular, uneven, faintly striate elytra, the deeply foveate

infra-interocular portion of the head, the deep oval prosternal fovea, and the compara-

tively elongate legs distinguish A. plicatipennis.

SOLARIA, gen. nov.

Zostrum curved, as long as or longer than the head and prothorax, moderately stout or stout, sometimes with

the apical portion more slender, longer, and straighter in the Q ; antennal club ovate, acuminate,

pubescent ; mandibles decussate ; prothorax feebly or moderately constricted in front, deeply sinuate at

the base, the median lobe rounded ; scutellum very small, flat, transverse, triangular or rounded behind

(S. gibba) ; elytra not or very little wider than the prothorax, narrowing from the rounded humeri ;

pygidium fully exposed, subvertical; prosternum at most shallowly sulcate, with two small oblong fovew

in front, unimpressed in S. compressicollis, the basal process large and broad, covering the mesosternum,

and more or less arcuate-emarginate behind (fig. 26); anterior coxse separated by more than their own

width; ventral segments 1 and 2 connate at the middle, 1 not depressed in the g ; femora dentate, the

posterior pair sometimes unarmed (S. compressicollis) ; tarsal claws free; body oblong-subcuneiform,

elliptic, or oval, almost glabrous.

Type, S. acutedens.

This genus includes Baridius curtulus, Boh., and Onychobaris dentitibia and

O. armipes, Solari, and various closely allied forms. 0. punctatissima and O. nicara-

guensis, Solari, from Mexico and Nicaragua respectively, are more nearly related

to Onychobaris, Lec., and will be dealt with later on. The numerous N.-American

forms (which are mostly confined to Arizona and New Mexico) included under

the last-mentioned genus by Casey have the basal process of the prosternum incom-

pletely covering the mesosternum, the femora unarmed, and the surface of the body

setulose above and beneath. Solaria is nearly related to Madarellus and Radamus,

near which it must be placed. The five Central-American forms may be separated

thus :—

a. Prosternum faintly sulcate or bifoveate anteriorly ; pygidium large; body

oblong-subcuneiform or elliptic.

a’, Anterior tibie very sharply dentate within in @, triangularly widened

MP ee ee ee ee ee ee ee + 5 acutidens, sp. n.

6', Anterior tibiz sinuate within in both sexes.

a’. Rostrum curved in ¢, longer and straighterin 9 . . . . . . . curtula, Boh.

6°, Rostrum curved and about equal in length in the two sexes . . . . curvata, sp. 2.

b. Prosternum distinctly sulcate ; pygidium short, strongly transverse ; prothorax

somewhat gibbous at the base; elytra uneven; anterior tibie almost

straight within; body broad-ovate. . . 2. 2. 1. 2. 1... . gibba, sp. n.

SOLARIA. 391

c. Prosternum unimpressed, transversely tumid in middle in ¢; pygidium

large ; prothorax feebly tuberculate on each side of the disc and compressed [sp. n.

at the sides anteriorly ; elytra uneven ; body somewhat fusiform. . . . compressicollis,

1. Solaria acutidens, sp.n. (Tab. XIX. figg. 24, 24a, b, ¢ ; 25, 2.)

Oblong, somewhat cuneiform, shining, black or fusco-castaneous. Head closely punctate, transversely grooved

between the eyes; rostrum moderately stout, curved, a little longer than the head and prothorax, some-

what closely punctate, in the 2 longer, smoother, and more slender, the antennx inserted near (d ) or

far behind (2) the middle, the club small. Prothorax transverse, rather convex, narrow in front, the

sides rounded anteriorly aud subparallel behind; sparsely punctate, the punctures fine on the disc,

becoming coarser and confluent at the sides. Scutellum minute, triangular. Elytra subtriangular,

somewhat compressed at the sides behind the humeri, slightly depressed at the base and along the suture ;

sharply and narrowly punctate-striate, the interstices broad, flat, finely and shallowly uniseriate-punctate.

Pygidium large, a little narrower in the 9 , densely punctate, longitudinally carinate at the base. Beneath

closely and coarsely punctate along the sides, more sparsely and finely so down the middle, the fifth ventral

segment densely punctate at the apex. Prosternum bifoveate in front, the broad basal process arcuate-

emarginate behind. Femora sharply dentate, the tooth on the anterior pair triangular.

3. Anterior tibie (fig. 24 5) armed with a long, sharp, triangular tooth at a little beyond the middle.

Q. Anterior tibie (fig. 25) triangularly dilated at a little beyond the middle.

Length 34-33, breadth 13-1} millim. (¢ 9.)

Hab, Panama, Bugaba, Volcan de Chiriqui, Tolé (Champion).

Four males and two females. Distinguished from its Central-American allies by the

very sharply dentate anterior tibie of the male, the tooth being longer and more acute

than in the same sex of S. dentitibia (Solari), from the Amazons, which, moreover, has

the rostrum shorter, more curved, and more closely punctate.

2. Solaria curtula. (8. isthmia, Tab. XIX. fig. 26.)

Baridius curtulus, Boh. in Schénh. Gen. Cure. viii. 1, p. 147°.

Elliptic, somewhat flattened above, shining, black or piceous, the legs often reddish. Head closely punctate,

transversely depressed between the eyes ; rostrum moderately stout, about as long as the head and pro-

thorax, closely punctate at the base and sparsely so towards the tip, the basal portion slightly thickened,

the apical portion in the Q longer, straighter, smoother, and a little more slender, the antenne inserted

behind the middle in both sexes, the club rather small. Prothorax moderately convex, transverse, much

narrowed and feebly constricted in front, the sides rounded anteriorly and parallel behind ; closely,

coarsely punctate (except along the smooth median line), the punctures becoming confluent at the sides

and sometimes finer on the disc. Elytra narrowing from the rounded hnmeri, depressed along the

suture; sharply punctate-striate, the interstices broad, flat, uniseriate-punctate, becoming rugose towards

the sides. Pygidium densely punctate, large and rather convex in the 3, narrower and flatter in the ?.

Beneath very coarsely and closely, a broad space down the middle sparsely and finely, punctate. Pro-

sternum (fig. 26) flattened or slightly hollowed down the middle, with two short sulci or oblong fovez

in front, these being sometimes confluent. Anterior femora sharply, the others feebly, dentate. Anterior

tibie simply sinuate within in both sexes.

Length 23-3}, breadth 13-14 millim. (d¢ @.) |

Hab. British Honpuras, Belize, Rio Hondo (Blancaneaux) ; Guatemaa, Livingston

(Schwarz and Barber, U.S. Nat. Mus.), Chacoj, Polochie valiey (Champion); Nicaragua,

Chontales, Greytown (Janson) ; Panama, Bugaba, Volcan de Chiriqui, Caldera, David,

Tolé, San Feliz, Panama city, Taboga I. (Champion), La Chorrera (Dolby-Tyler).—

CoLoMBIa |.

392 RHYNCHOPHORA.

An abundant insect in the State of Panama, though we, unfortunately, have no note

as to its habits. The chief characters of S. cwrtula, the type of which I have seen, are

its coarsely punctured prothorax and the elongated, straighter, and more slender

rostrum in the female. &. armipes (Solari), from Goyaz, Brazil, is a little broader than

S. curtula, and has more sharply dentate femora, and a more abruptly curved, shorter

rostrum in the male.

3. Solaria curvata, sp. n.

Very like the larger examples of S. curtula, but with the prothorax finely and sparsely punctate on the dise,

and the elytra more finely striate and with the interstitial series of punctures finer and more scattered ;

the rostrum stout, strongly arcuate, and about equal in length, in the two sexes, the apical portion

smooth and shining in the 9; all the femora sharply dentate.

Length 35-33, breadth 14-13 millim. (¢ 9.)

Hab. Guatemata, Livingston (Schwarz and Barber, U.S. Nat. Mus.); Panama,

Volcan de Chiriqui, Pefia Blanca (Champion).

One male and five females. Apparently distinct from S. curtula, the difference in

the form of the rostrum in the female being very marked. The shorter and more

curved rostrum and the simply sinuate anterior tibie of the male separate S. curvata

from S, acutidens; and the longer and less abruptly curved rostrum of the male, the

more finely punctate upper surface, and the less strongly dentate femora distinguish it

from S. armipes.

4. Solaria gibba, sp.n. (Tab. XIX. figg. 27, 27 a, ¢.)

Broad ovate, the prothorax somewhat gibbous at the base as seen in profile, varying in colour from black to

ferruginous, shining. Head sparsely, finely punctate, shallowly, transversely grooved between the eyes ;

rostrum moderately stout, arcuate, not longer than the head and prothorax, finely punctate, the apical

portion smoother in the @, the antenne inserted at ( 2 ) or slightly beyond (¢ ) the middle. Prothorax

broad, strongly constricted in front, gradually narrowing from the base, the sides rounded anteriorly ;

sparsely, finely punctate (except along the narrow smooth median space), the punctures becoming longi-

tudinally confluent at the sides. Scutellum almost smooth, flat, rounded behind. Elytra gradually

narrowing from the rounded humeri, uneven; sharply striate, the strie feebly punctate, the interstices

broad, flat, and finely uniseriate-punctate. Pygidium closely punctate, short, strongly transverse.

Beneath closely and coarsely, a broad space down the middle more sparsely and finely, punctate.

Prosternum shallowly sulcate, feebly bifoveate in front. Legs rather stout, coarsely punctate ; all the

femora dentate ; anterior tibie almost straight on their inner edge; anterior tarsi slightly widened in

the 3; tarsal claws small, free.

Length 3-37, breadth 13-2 millim. (¢ 2.)

Hab. Mexico, Temax in N. Yucatan (Gaumer); Bririsi Honpuras, Rio Hondo

(Blancaneaux) ; GuaTEMALA, San Isidro, Pacific slope (Champion).

Five specimens. Broader than S. curtula, the prothorax somewhat gibbous at the

base, the elytra uneven, the pygidium short and strongly transverse, the prosternum

distinctly sulcate, the scutellum almost smooth and rounded bebind.

SOLARIA.—EURHINUS. 393

5. Solaria compressicollis, sp.n. (Tab. XIX. figg. 28, 28a, 3.)

Somewhat fusiform, shining, rufo-piceous. Head finely punctate, transversely grooved between the eyes ;

rostrum stout, arcuate, a little longer than the head and prothorax, closely punctate, the untennx

inserted near the middle, the club rather large. Prothorax slightly broader than long, constricted in

front, tumid on each side of the disc behind the middle, and laterally compressed and rapidly narrowed

thence to the apex ; rather coarsely, closely punctate (except along a narrow smooth median space), the

punctures becoming confluent at the sides. Elytra subtriangular, uneven ; narrowly, sharply striate,

the striae feebly punctate, the interstices broad, flat, feebly uniseriate-punctate, becoming rugulose

towards the sides. Pygidium large, densely punctate. Beneath coarsely, a broad space down the middle

more finely, punctate. Prosternum transversely tumid in the middle before the widely separated cox,

unimpressed in front, the basal process moderately developed. Anterior femora sharply, the intermediate

femora obsoletely, dentate.

Length 33, breadth 14 millim. (¢.)

Hab. Panama, Caldera in Chiriqui (Champion).

One male. An isolated form, somewhat fusiform in shape, with a rather long,

subconical, feebly binodose, laterally compressed prothorax, uneven elytra, and trans-

versely tumid, unimpressed prosternum, the posterior femora unarmed.

Sect. EURHINIDES.

Eurhinides, Lacordaire (part.).

Under this section are included the various brilliantly metallic Tropical-American

forms constituting the genus Lurhinus, Schonherr. Loboderes is here referred to the

‘“‘ Madarides ” and Barycerus would be better placed amongst the “ Baridiides vrais.”

EURHINUS.

Eurhinus, Schénherr, Cure. Disp. Meth. p. 312 (1826); Gen. Cure. iil. p. 812, and vi. 1, p. 288 ;

Lacordaire, Gen. Col. vil. p. 221.

The species of this genus seem to require a thorough revision, as they have been

mainly based upon colour, and no allowance appears to have been made for any

variation in this respect, this being particularly noticeable in the commonest of the

Central-American forms*. Tbe males have the funiculus sulcate along its lower

* Tn addition to the five species enumerated from within our limits, there are two specimens of an unde-

scribed §.-American form in the British Museum labelled “ Z. subcylindricus, Chevr., Mexico,” which may be

characterized thus :—Hurhinus chevrolati, sp.n. (Tab. XIX. figg. 29, 29, a, 6, 3.) Oval, shining, uniformly

metallic-green or golden-green, the antenne and tarsi bluish. Head impressed and foveate between the eyes,

obsoletely punctate ; rostrum short, not longer than the prothorax, sparsely, minutely punctate. Prothorax

transverse, subconical, constricted in front; sparsely, minutely punctate. Scutellum transverse, triangular,

hollowed in front. Elytra with the humeri rounded and not prominent; very finely striate throughout, the

strive finely punctate, the interstices sparsely, minutely punctate. Beneath very sparsely, minutely punctate.

Anterior tibiz armed with a sharp tooth on the inner side near the apex. Anterior tarsi slightly dilated and

hairy, the funiculus sulcate beneath, the first ventral segment broadly depressed, and the fifth without fovea,

in the ¢. Length 63-7, breadth 33-4 mm. (3 Q).—Huab. Sour Amurica, Colombia, Venezuela, Rio Negro

(Mus. Brit.). Hight specimens, differing from Z. festivus and its allies in its oblong form and the non-

dilated humeri of the elytra. The MS. name subcylindricus is best ignored and the locality ‘ Mexico ” is more

than doubtful.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 9, November 1908. 3 EE

394 RHYNCHOPHORA.

the anterior tarsi dilated or

face; the anterior tibie usually more or less elongated ;

and the fifth (except in

lengthened ; the first ventral segment depressed in the middle,

E. chevrolati) furnished with a deep, transverse, piligerous fovea*. <A fossil Eurhinus

(occultus, Scudd.) has been described from the tertiaries of Colorado (Scudder, Bull.

U.S. Geol. & Geogr. Surv. ii. p. 87).

Elytra distinctly striate, the transverse basal excavation extending

outwards to the shoulder; body cupreous, the tarsi darker ;

rostrum tuberculate at apex beneathin gd . . + + 5

Elytra obsoletely striate, the basal excavation not reaching the

shoulder ; rostrum not tuberculate beneath in 3.

Body blue or bluish-green, the head, rostrum, femora, and tibiee

cupreous; the transverse basal depression of the elytra large. cupripes, Pase.

Body blue or bluish-green, the head, rostrum, and legs green ;

the transverse basal depression of the elytra foveate within ;

anterior tarsiof ¢ elongated and dilated. . . . . . « viridipes, sp. n.

Body uniformly green or golden-green ; anterior tarsi of ¢ shorter

and less dilated 2. 2. 2... 1 ee ee es .

Body green, the dise of the prothorax, two patches on each

elytron, rostrum, femora, and tibia cupreous . . . . -

Body green, the cupreous coloration of the elytra more extended,

leaving the suture and base only green or golden-green . . festivus, var. suturalis, Chevr.

Body cupreous, the prothorax and elytra usually more or less

suffused with geneous on the disc, the sutural stria rather

coarsely punctate; fifth ventral segment foveate in both

SEXES 2 ee ee ee ee ee ee yucrttecus, SP. N.

alritarsis, Chevr.

festivus, F.

festivus, var. maynificus,Gyll.

1. Eurhinus atritarsis, (Tab. XIX. figg. 30, 30a@, ¢.)

Eurhinus atritarsis, Chevr. in Guérin’s Icon. Régne Anim., Ins. p. 161°.

Ceutorhynchus fulgidus, Sturm, in litt.’

Hab. Mexico (ex coll. Sturm; coll. Solari), Vera Cruz (Chrevrolat!), Acapulco

(Hoge).

This species has the body and legs (the darker tarsi excepted) uniformly cupreous,

and the elytra distinctly striate, and with the basal depression shallow and extending

outwards to the humeri. The five males before me have the rostrum very stout and

short, and armed with a small conical tubercle at the apex beneath; the femora more

or less ciliate or pubescent beneath; the tibie armed with a sharp tooth near the

tip, in addition to the apical uncus; the first ventral segment broadly depressed, and

* Divided into two in two South-American forms before me—Z. viridis, Boh.?, from Brazil, and Z. mala-

chiticus, Kirsch, from Colombia, the type of which has been kindly communicated by Dr. Heller for

examination.

EURHINUS. 395

the fifth furnished with a deep, transverse, piligerous fovea; and the joints 2-7 of

the funiculus shallowly sulcate beneath, the outer ones very strongly transverse.

E. cupratus (Illiger), from Brazil, is similarly coloured, except that the legs are

wholly blue.

2. Hurhinus cupripes. (Tab. XIX. figg. 31, 31a, b, 3.)

Eurhinus cupripes, Pasc. Ann. & Mag. Nat. Hist. (5) xvii. p. 4267.

Hab. Mexico (Mus. Brit.), Puebla (Sallé).

I have seen four specimens of this species, including the type (¢), which may be

known by its brilliant green or blue body, with cupreous head, rostrum, femora, and

tibie, and the broad, deep, transverse excavation at the base of each elytron. The

male characters are similar to those of EZ. festivus and its varieties.

3. Eurhinus viridipes, sp.n. (Tab. XIX. figg. 32, 32a, 6, 3.)

Rhomboidal, robust, very shining, above blue or bluish-green, beneath in great part and the legs and rostrum

(except sometimes at the tip) green, the antennee eneous. Head very sparsely, minutely punctate,

transversely depressed and shallowly foveate between the ey:s; rostrum stout, curved, as long as the

head and prothorax, somewhat closely punctate, the antenne inserted beyond the middle. Prothorax

transverse, rather convex, subconical, abruptly narrowed and tubulate in front; sparsely, minutely

punctate. Scutellum short, broad, rounded behind. LElytra subtriangular, excavate and foveate at the

base of the third stria, the humeri swollen and subangularly dilated; very finely seriate-punctate, striate

at the base, apex, sides, and near the suture. Pygidium closely punctate. Beneath very sparsely punc-

tate, the sides of the pro-, meso-, and metasternum almost smooth.

3g. Joints 2-7 of the funiculus sulcate beneath; anterior tibize elongate, somewhat curved, and with the

subapical tooth small; intermediate tibie angularly dilated on the inner edge near the base; anterior

tarsi elongated, with joints 2 and 3 strongly dilated and hairy, 3 very large; first ventral segment

depressed in the middle and the fifth with a large, transverse, piligerous fovea.

Length 73-93, breadth (at shoulders) 44-6), millim. (¢ @.)

Hab. Mexico (Truqui,in Mus. Brit.), Cuernavaca (Sallé, Hoge), Panislahuaca (Sallé),

Tehuantepec (Mus. Brit.).

Nine specimens. Extremely like large, typical H. festivus, but with the upper

surface blue or bluish-green, and the anterior tarsi of the male longer and much more

dilated. From £. cupripes, which has a similarly-coloured body, it may be distin-

guished by the shallower and less transverse excavation at the base of the elytra, and

the green head, rostrum, and legs. The S.-American EH. cyaneus, Gyll., is also very

similar to E. viridipes, but it is entirely blue, above and beneath, and has a deeper and

larger basal fovea on the elytra.

4. Kurhinus festivus. (Tab. XIX. figg. 33, 34, 35, ¢.)

Rhynchenus festivus, Fabr. Syst. Eleuth. ii. p. 445°; Oliv. Ent. v. no, 83, p. 119, t. 29. fig. 436°.

Eurhinus festivus, Gyll. in Schonh. Gen. Cure. iii. p. 815°; Boh. op. cit. viii. 1, p. 289%.

Hab. Mexico (Mus. Brit.), Acapulco (Hége); British Honpuras, Belize, Rio Hondo

3 EK 2

396 RHYNCHOPHORA.

(Blancaneaux); GuatemaLa, Panzos (Champion) ; Costa Rica (Van Patten), Caché

(Rogers), Tuis, San José (Pettier)—Sovurh America’, Surinam ?**, Cayenne?4;

CuBA 4.

Var. a. The prothorax with a triangular patch on the disc (of variable extent and sometimes wanting), the

elytra with a patch on each shoulder and another at the apex, the rostrum, femora, and tibie, and some-

times the head also, cupreous or golden. (Fig. 34.)

Eurhinus magnificus, Gyll. in Schénh. Gen. Cure. iii. p. 814°; op. cit. vill. 1, p. 289°.

Hab. Mrxico®® (Mus. Brit.; Trugut), Almolonga in Puebla, Tapachula in Chiapas

(Hoge), Cordova, Millan (nad, in U.S. Nat. Mus.), Bobo (Flohr), Jalapa (Smith), Vera

Cruz, Toxpam, Panistlahuaca in Oaxaca (Sadlé), Teapa (Sallé, H. H. Smith), Tehuan-

tepec (Mus. Brit.); British Honpuras, Rio Sarstoon, Rio Hondo (Blancaneauz) ;

GUATEMALA, Panzos (Champion, Conradt), Trece Aguas (Schwarz and Barber, U.S.

Nat. Mus.), San Gerénimo, Teleman, El Reposo (Champion); Nicaragua, Chontales

(Belt, Janson).

Var. 6. The cupreous patches on the elytra longitudinally confluent and sometimes suffused with blue, leaving

the suture and base only green or golden-green. (Fig. 35.)

Eurhinus suturalis, Chevr. in Guérin’s Icon. Régne Anim., Ins. p. 160%.

Eurhinus magnificus, var. 8, Boh. in Schénh. Gen. Cure. viii. 1, p. 289°.

Hab. Mexico § (Sallé, Mus. Brit.), Ventanas in Durango (Forrer), Tonila in Colima,

Almolonga in Puebla (Hége), Tampico 7.

A very variable insect. The var. magnificus, the predominant Central-American

form, does not extend south of Nicaragua, and the var. sutwralis is confined to Central

and Northern Mexico; but amongst the Costa Rican series, which are mostly wholly

green, like the typical S.-American £. festivus, there are several specimens showing

traces of the cupreous spots on the elytra, so that no value can be placed on this

character. A few small examples from Teapa, British Honduras, and the Polochic

valley (both with and without the cupreous spots) have the side-pieces of the meso-

and metasternum rather coarsely punctate, and the elytral interstices more distinctly

punctured than usual towards the apex. The elytra are deeply excavate and foveate

at the base, and the humeri are more or less angularly dilated. The males have the

outer joints of the funiculus strongly transverse, and 2~7 sulcate beneath, the anterior

tibiee slightly elongated, the first ventral segment depressed in the middle and the

fifth furnished with a deep, transverse, piligerous fovea near the apex. The females

have a smoother rostrum, a more slender funiculus, and the anterior tibie shorter and

more distinctly crenulate within ; the fifth ventral segment is sometimes obsoletely

foveate in this sex. The form of the var. suturalis with a bluish suffusion on the

cupreous portions of the upper surface, from Tonila and V

entanas, is perhaps the most

brilliantly-coloured Barid yet discovered.

EURHINUS.—EURHINOPNSIS. 39)

5. Kurhinus yucatecus, sp.n. (Tab. XIX. figg. 36, 36a, 3.)

Rhomboidal, robust, very shining, cupreous, the antennz, the disc of the prothorax, the elytra (except along

the suture, base, and outer margin), and sometimes the under surface and legs also, indeterminately

suffused with sneous or greenish-zneous. Head sparsely, finely punctate, depressed between the eyes ;

rostrum very stout, arcuate, about as long as the head and prothorax, somewhat closely punctate, the

antennee inserted beyond the middle. Prothorax transverse, convex, conical, narrow and tubulate in

front ; sparsely, finely punctate, and with a line of punctures along the basal margin. Scutellum strongly

transverse, triangular, very sparsely punctate. Elytra triangular, excavate and foveate at the base of the

third stria, the humeri thickened and subangularly dilated ; seriate-punctate, striate at the base, apex,

and sides, the sutural stria also distinct and with a row of rather coarse punctures, the interstices flat,

very sparsely, finely punctate. Pygidium closely punctate. Beneath coarsely, the abdomen more finely,

punctate. Tibiw more or less crenulate within, each armed with a sharp tooth on the inner side towards

the apex.

3. Anterior tibie a little elongated; anterior tarsi slightly dilated and somewhat hairy, the third joint large ;

metasternum and first ventral segment excavate in the middle, the fifth segment with a transverse

piligerous fovea; joints 2-7 of the funiculus rather broad, shallowly sulcate beneath.

Q. Anterior tibiz shorter; ventral depressions shallower, the fifth with a smaller fovea; funiculus more

slender.

Length 44-54, breadth (at shoulders) 23-33 millim. (d 2.)

Hab. Murxico, Temax in N. Yucatan (Gaumer).

Sent us in numbers by Gaumer, many of the specimens in a bad state of preserva-

tion*. This is the Yucatan form of the variable Z#. festivus, from which it may be

known by its different colour and the more coarsely punctate sutural stria of the elytra.

The ventral fovea is constantly present in the female, and the excavation of the male

is deep.

Sect. BARIDES.

Baridiides vrais, Lacordaire, Gen. Col. vii. p. 224.

The species of this section, two genera only of which were recognized by Lacordaire,

have a fully exposed vertical or subvertical pygidium in both sexes f (usually larger

and more convex in the male than in the female), and the mesosternum not wholly

covered by the basal process of the prosternum. The N.-American forms have been

placed under numerous genera by Casey, many of these being represented within our

limits. The male-characters are feeble, as compared with those of the Centrinides,

and the prosternum is very rarely spinosef. Pseudobaris, Lec., includes some of the

most abundant of the Central-American Barids.

EURHINOPSIS, gen. nov.

Mandibles decussate; rostrum curved, stout, very short, the antenne inserted at about the middle, rather

slender, the joints of the funiculis closely articulated, widening outwards, the club ovate; prothorax

* Due to having been baked to prevent mould.

+ Except in the female of Pseudobaris lucida, in which it is subhorizontal and almost hidden by the elytra.

+ In some of the §.-American species of the genus Angpsilus, Kirsch (= Balbus, Pasce.).

398 RHYNCHOPHORA.

transverse, shortly tubulate in front, deeply bisinuate at the base; scutcllum free, triangular, on the

same plane as the elytra; elytra short, rounded-triangular, separately rounded at the apex ; pygidium

exposed, transverse, subvertical; prosternum deeply sulcate to near the base, the anterior portion short,

the broad basal process almost covering the mesosternum ; anterior cox separated by about their own

width; legs short and stout, femora linear and unarmed, tibie strongly unguiculate and also toothed at

or near the inner apical angle (fig. 26), tarsal claws small and connate ; body short and broad, rhomboid-

ovate, metallic, glabrous.

Type, E. e@ruginosus.

The two species referred to this genus differ from Eurhinus (type, £. cyaneus, Gyll.)

in their very short rostrum, prosternum, and legs, more slender antenne, non-prominent

humeri, smaller tarsal claws, &c.; and they cannot even be satisfactorily placed in the

section “ Eurhinides” as defined by Lacordaire. Hurhinopsis will probably include

various unnamed S.-American forms existing in collections. ,

1. Eurhinopsis z2ruginosus, sp.n. (Tab XX. figg. 1, la, 2.)

Convex, subopaque above, shining beneath, metallic green, the femora and tibia cupreous, the tarsi and

antenns nigro-piceous. Head finely punctate, foveate between the eyes; rostrum feebly curved, very

short, not longer than the prosternum along the median line, sparsely, finely punctate. Prothorax

transversely convex, arcuately narrowing from the base to the apical constriction ; closely and uniformly

impressed with coarse, rounded punctures, which are separate one from another. Elytra depressed along

the suture, the humeri rounded; sharply punctate-striate, the interstices flat and coarsely, closely,

seriately punctate. Pygidium closely punctured. Beneath very coarsely and closely, the median portion

of the ventral segments sparsely and much more finely, punctate. Legs coarsely, closely punctate,

Length 34, breadth 23 millim. ( 9.)

Hab. Murxico, Oaxaca (L/ége).

One specimen. The upper surface in this insect is very finely alutaceous, thus

appearing subopaque.

2. Kurhinopsis viridicolor, sp. n. (Tab. XX. figg. 2, 2a, b.)

Broad, somewhat: flattened above, shining, golden-green, the antenne and tarsi nigro-piceous. Head finely

punctate, foveate between the eyes; rostrum arcuate, very stout, about as long as the prosternum along

the median line, sparsely, finely punctate. Prothorax moderately convex, gradually narrowing from the

base to the abrupt apical constriction; sparsely, finely punctate, the punctuation becoming coarser

towards the sides. Elytra slightly flattened on the disc, sharply, finely striate, the striz with scattered

conspicuous punctures, the interstices broad, flat, and very finely and sparsely seriate-punctate. Pygidium

closely punctate. Beneath very coarsely and closely, the median portion of the ventral segments sparsely

and more finely, punctate.

Length 3;,-4,15, breadth 2-23 millim.

Hab. GuaTEMALA, Panima in Vera Paz (Champion); Panama (coll. Fry, in Mus.

brit.).

Two specimens, perhaps male and female, varying in size and in the sculpture of the

prothorax. Broader, less convex, and more finely and sparsely punctured above than

E. eruginosus, the upper surface shining golden-green, the femora and tibie similarly

coloured, the prothorax abruptly constricted in front. Eurhinus malachiticus, Kirsch,

EURHINOPSIS.—STETHOBAROIDES. 399

from Colombia, the type of which I have seen, is not unlike the present insect, but it

is congeneric with 2. cyaneus, Gyll.

STETHOBAROIDES, gen. nov.

Mandibles decussate ; rostrum arcuate, moderately long, the antenne inserted behind the middle, the club

acuminate-ovate ; prothorax transverse, subconical, abruptly constricted and tubulate in front, feebly

bisinuate at the base, the median lobe emarginate ; scutellum free, oblong, narrow, puarallel-sided; elytra

rounded-triangular, with obliquely truncated humeri, leaving the upper portion of the mesothoracic

epimera exposed, sharply crenate-striate, separately rounded at the apex; pygidium exposed, transverse,

subvertical ; prosternum (fig. 35) deeply sulcate, the sulcus widening tv the anterior cuxe, and then

narrowed and margined between them, the basal process short; anterior cox separated by about one-

half, and the intermediate and posterior coxw by nearly twice, their own width; mesosternum depressed,

exposed, connate with the metasternum ; ventral segments | and 2 connate in their median third; femora

sublinear, unarmed ; tibie strongly unguiculate; tarsal claws minute, narrowly separated; body sub-

rhomboidal, flattened and glabrous above.

Type, S. nudiventris.

A genus including two closely allied species. ‘The type superficially resembles the

North-American Stethobaris ovata, Lec.*, but differs from it in the fully exposed

pygidium, the more approximate anterior cox, the long, parallel-sided scutellum, the

obliquely truncated humeri, the less elongate antennal club, &c.

1. Stethobaroides nudiventris, sp.n. (Tab. XX. figg. 3, 3a, b, 6.)

Black, shining, the elytra very finely alutaceous. Head finely punctate, shallowly transversely grooved or

feebly foveate between the eyes; rostrum in the ¢ moderately stout, about as long as the head and

prothorax, and closely striato-punctate to the tip, in the 2 longer, smoother, and more slender, the

antenne inserted just behind the middle in the ¢ and at the basal third in the 9. Prothorax strongly

transverse, rapidly narrowed from the base; somewhat closely punctate, except along the median line,

the punctures fine on the disc and coarse at the sides. Scutellum smooth, canaliculate. Elytra depressed

along the suture, the crenate striz deep aud sulciform, the interstices flat, broad on the disc, narrower

at the sides, and obsoletely seriate-punctate. Beneath almost glabrous, coarsely and closely, the ventral

segments 1-4 very sparsely and finely, punctate.

3. Metasternum broadly excavate, and the first ventral segment slightly depressed, in the middle, and the

fifth segment usually with a deep central fovea.

Length 22-34, breadth 13-1} millim. (¢ 9.)

Hab. Mexico, Toxpam in Vera Cruz (Sallé; Mus. Dresden); British Honpburas,

Belize, Rio Hondo (Blancaneaurx).—Cotomsia (Jus. Brit.).

Numerous examples, one of the males wanting the fovea on the fifth ventral

segment.

9. Stethobaroides piliventris, sp.n. (Tab. XX. figg. 4, 4a, 3.)

3. Very like S. nudiventris, but larger and more elongate; the rostrum more elongate (as long as in the @ of

S. nudiventris); the prothorax very sparsely and minutely punctate on the disc; the elytra relatively

longer, more gradually narrowed from the base, transversely depressed on the disc at a little beyond the

* Elliptobaris nudicollis (antea, p. 251) is not unlike S. ovata, but it has long, divergent tarsal claws,

setulose elytra, &c.

400 RHYNCHOPHORA.

middle, the dorsal interstices wider ; the metasternum and abdomen with a broad space down the middle

closely, finely punctate and clothed with long, fine hairs, the metasternum and first segment broadly and

deeply excavate, the fifth foveate.

Length 43, breadth 23 millim.

Hab. Mexico, Juquila in Oaxaca (Sallé).

One male.

ANISORRHAMPHUS, gen. nov.

Rostrum stout, arcuate, moderately long, separated from the head by a transverse groove, and also abruptly

constricted near the base (the constriction formed by a deep transverse groove and a subtriangular exca-

vation on each side), the scrobes deep, inferiorly placed, confluent behind; antenne inserted beyond the

middle of the rostrum, the club large and ovate; eyes large; mandibles short, notched within, slightly

decussate; prothorax transverse, bisinuate at the base, the median lobe truncate; scutellum free,

triangular, densely squamose ; elytra rounded-triangular, separately rounded at the apex, sharply striate,

the lower margin strongly sinuate; pygidium large, fully exposed, declivous; prosternum unimpressed

behind the transverse suture ; anterior coxe separated by about half their own width, the basal process

emarginate and not covering the mesosternum; metathoracic episterna broad; ventral segments 2-5

nearly equal in length; femora unarmed, clavate; tarsal claws long, divergent; body oblong-rhomboidal,

polished and in great part glabrous above, the scutellum and under surface squamose.

Type, A. squamiventris.

This genus may be at once recognized by the peculiar fractured appearance of the

rostrum (fig. 5a), due to the deep transverse sulcus on each side near the base, the

subtriangular excavation behind this looking as if it was intended to receive the basal

joint of the funiculus. A. sguamiventris has the general facies of Loboderes flavicornis,

and it inhabits the same districts in Central America.

1. Anisorrhamphus squamiventris, sp.n. (Tab. XX. figg. 5, 5a, ¢.)

Black, shining, the tip of the rostrum, the antenne in part or entirely, and the tibiz and tarsi, ferruginous or

obscure ferruginous; the scutellum and under surface densely clothed with rather coarse whitish or pale

ochreous scales. Head closely punctate; rostrum about as long as the head and prothorax, very stout,

closely punctate, and setose beneath in the g, more slender and bare in the 9, the antenne inserted

towards the tip in the ¢ and at about the apical third inthe 9. Prothorax gradually narrowing from

the base, feebly constricted in front; closely, somewhat coarsely punctate, and with indications of a

smooth median line, Elytra rather short, rapidly narrowing from the rounded humeri, depressed along

the suture to the apex; sharply pnnctate-striate, the interstices broad, flat, and very sparsely, finely

punctate. Pygidium densely punctate, somewhat convex. Beneath densely punctate, the first ventral

segment unimpressed in the ¢.

Length 23-41, breadth 17-2 millim. (¢ @.)

Hab. Mexico, Vera Cruz (Sallé); British Honpuras (Blancaneaur) ; GuATEMALA,

Cahabon, Chiacam, and Panzos in Alta Vera Paz (Champion), Coban (Conradt) ;

PanaMA, Caldera in Chiriqui (Champion).

Found in numbers at Cahabon in February, 1880. The specimens before me vary

greatly in size and also in the intensity of the puncturing of the prothorax.

MADAROPSIS.—SPHENOBARIS. 401

MADAROPSIS, gen. nov.

Mandibles short, notched within, decussate; rostrum stout, strongly arcuate, moderately long, the scrobes

running along the lower face, the antenne inserted beyond or near the middle, the antennul club stout,

ovate; prothorax constricted in front, moderately sinuate at the base; scutellum small, free, oblong ;

elytra elongate-subtriangular, slightly wider than the prothorax, produced and separately rounded at the

apex, the humeri rounded, leaving the upper portion of the mesothoraciec epimera exposed ; pygidium

prominent, transverse; prosternum (fig. 64) narrowly sulcate from the apex to as far as the middle of

the anterior coxe, the sulcus widening anteriorly and limited on each side in front by a short oblique

ridge, the basal process short and depressed; meso- and metasternum connate, the mesosternum

depressed and broadly exposed; anterior coxe separated by about their own width; legs moderately

elongate ; femora unarmed, the anterior pair subclavate, the others sulcate beneath; tibiee and tarsi

rather slender, the tibie strongly unguiculate, the tarsal claws long and divergent; body elongate,

subfusiform, squamose.

Type, M. suleipectus.

The insect forming the type of this genus superficially resembles certain members of

the genus Madarus (M. fusiformis and M. ochreoguttatus), but the structure of the

pro- and mesosternum is wholly different, and the two genera cannot even be placed

in the same section of the Barina.

1. Madaropsis sulcipectus, sp.n. (lab. XX. fige. 6, 6a, 4, 3.)

Shining, eneo-piceous; sparsely clothed with coarse, narrow, elongate, adpressed ochreous scales, those on

the elytra here and there clustered into dense fascicles, the legs with small hair-like scales. Head finely

punctate; rostrum about as long as the head and prothorax, closely punctate, the antenne inserted at

the apical third (¢) or near the middle (@). Prothorax transverse, the sides rounded anteriorly and

parallel behind; closely and rather coarsely punctate, except along the irregular narrow smooth median

space: Elytra flattened on the dise anteriorly, rapidly narrowed in their apical fourth ; finely striate,

the strie with scattered fine punctures, the interstices flat to near the apex, sparsely, finely, irregularly

punctate. Pygidium (¢) convex, shining, and densely punctate, ( 2 ) shorter, flatter, rugosely punctate,

and raised along the middle. Beneath coarsely and closely, the ventral segments very sparsely and

finely, punctate.

Length 4,4,-44, breadth 14-4 millim. (d¢ 2.)

Hab. Panama, Volcan de Chiriqui (Champion).

Three specimens. Easily recognizable by its elongate, subfusiform shape, the

eeneo-piceous surface, the dense fascicles of coarse, narrow, ochreous scales on the

elytra, the narrowly sulcate prosternum, the long legs, and the slender tarsi.

SPHENOBARIS, gen. nov.

Mandibles not decussate, almost straight on their inner edge (as seen closed), rounded externally ; rostrum

arcuate, moderately long, the antenne inserted at the middle, the funiculus stout, the club ovate ;

prothorax broad, feebly bisinuate at the base; scutellum small, transverse; elytra triangular, scarcely

wider than the prothorax, conjointly rounded at the apex, the humeri rounded, leaving the upper portion

of the mesothoracic epimera exposed; pygidium exposed, vertical, short, strongly transverse; prosternum

flat, obsoletely bifoveate in the transverse subapical groove, the basal process broadly truncate behind

and almost on a level with the connate, flattened portions of the meso- and metasternum; anterior and

intermediate coxse each separated by more than their own width ; legs moderately long; femora sub-

BIOL, CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, February 1909. 3 FF

402 RHYNCHOPHORA.

clavate, the anterior and intermediate pairs dentate ; tibie feebly unguiculate ; tarsal claws divergent ;

body cuneiform, flattened and opaque above, squamose.

Type, S. guadridens.

The single species referred to Sphenobaris is not unlike a Madarellus in general

facies (except that it has the upper surface opaque and squamose, instead of polished

and bare), but as the transverse flattened portion of the mesosternum is fully exposed,

the genus seems best placed among the “ Baridiides vrais.” ‘The prothorax is much

more feebly sinuate at the base than in Madarellus, Radamus, and Ampeloglypter.

1. Sphenobaris quadridens, sp. n. (Tab. XX. figg. 7, 7.)

Moderately elongate, alutaceous and opaque above, somewhat shining beneath, piceous ; clothed with widely

scattered, intermixed, coarse, narrow, oblong, ochreous and minute darker scales, the larger ochreous

scales on the elytra condensed into two small spots at the base and a dense angulate median fascia, and

those on the metathoracic episterna into a dense elongate patch, the head and base of the rostrum also

somewhat thickly squamose, the legs with small hair-like ochreous scales. Head closely punctate ;

rostrum about as long as the head and prothorax, moderately stout, densely punctate and finely carinate,

bare, shining, and almost smooth at the tip. Prothorax transverse, narrow and feebly constricted in

front, the sides rounded anteriorly and parallel at the base; densely, finely punctate, except along the

faint median line, the very narrow interspaces becoming obliquely confluent towards the sides. Elytra

transversely depressed at the middle, very finely punctate-striate, the interstices broad, flat, densely

rugulose, shallowly uniseriate-punctate near the suture. Beneath coarsely and deusely, the abdomen

sparsely and finely, punctate. Anterior tibia sinuate, widened in their outer half.

~ Length 3, breadth 14 millim. (2?)

Hab. Panama, Bugaba (Champion).

One specimen in very fresh condition.

DEIPYLE, gen. nov.

Mandibles curved, toothed within, slightly decussate at the tip; rostrum curved, stout, elongate, the

antenne inserted at or slightly behind the middle, the antennal club acuminate-ovate; prothorax

subconical, transverse, tubulate in front, strongly bisinuate at the base, the median lobe rounded and

impinging on the scutellum, the latter small and transverse ; elytra rounded-triangular; pygidium

exposed, vertical, not visible from above, transverse, dissimilar in size in the two sexes of D. induta;

prosternum (fig. 8 6) with a broad polished sulcus extending from the apex to as far as the middle of the

widely-separated anterior cox, the ante-coxal portion short, not longer than the broadly truncated basal

process; mesosternum depressed, connate with the metasternum; femora sublinear, unarmed; tibie

strongly unguiculate ; tarsal claws long, divergent; body rhomboid-ovate, short, sparsely squamose.

Type, D. induta.

The type of Deipyle looks like a Centrinid, at first sight, but it has a vertical and

fully exposed pygidium in both sexes, and is perhaps best placed near G/yptobaris,

Casey. D. seminuda may be included under the same genus for the present.

1. Deipyle induta, sp.n. (Tab. XX. figg. 8, 8a, b, 2.)

Rhomboid-ovate, rather convex, shining, rufo-piceous, variegated above with black; the upper surface

. somewhat thickly clothed with long, coarse, hair-like, ochreous scales, which are transversely arranged

on the prothorax and tend to form a basal and median fascia and various interrupted lines on the

_. elytra, the vestiture of the under surface much sparser and fiver. Head densely punctate rostrum

DEIPYLE.—GLYPTOBARIS. 405

stout, longer than the head and prothorax, moderately curved, somewhat closely punctate, the apical

half a little more sparsely punctured in the Q. Prothorax rapidly narrowing from the base, densely,

finely, confluently punctate, and sometimes with an abbreviated smooth median line. Scutellum hollowed

in the middle. Elytra sharply, narrowly striate, the stria faintly punctate, the interstices flat, rugosely

punctate, and with a very fine, more or less distinct, raised line on each side. Pygidium broad, rather

convex, and closely punctate in the g, smaller, flattened, and rugosely punctured in the ¢. Beneath

coarsely and densely, the abdomen very sparsely and finely, punctate, the prosternal cavity sharply

defined and almost smooth.

Length 34-44, breadth 2-23 millim. (d 9.)

Hab. Guatemata, San Isidro, Pacific slope (Champion: 3 2); Panama, Volcan de

Chiriqui (Champion: ¢ ).

Five specimens, the one with the larger pygidium and more closely punctate

rostrum assumed to be the male*, the two from Chiriqui in very fresh condition.

The elytra are bare in places, the ochreous hair-like vestiture thus forming fascie and

interrupted lines.

2. Deipyle seminuda, sp.n. (Tab. XX. figg. 9, 9a, 2.)

Rhomboid-ovate, short, feebly convex above, very shining, rufo-piceous ; the upper surface clothed with a few

small, hair-like, yellowish-white scales, those on the elytra condensed into two faint interrupted fasciz

(one basal, the other median), the under surface almost bare. Head closely punctate, obsoletely foveate ;

rostrum arcuate, moderately stout, much longer than the head and prothorax, sparsely punctate, a little

smoother in the @. Prothorax rapidly narrowing from the base, sparsely, minutely punctate (except

along the smooth median line), the punctures becoming coarser at the sides and along the basal margin.

Elytra short, narrowly crenate-striate, the interstices broad, flat, obsoletely seriato-punctate, feebly

costate towards the sides and apex. Pygidium very short, closely punctate. Beneath coarsely and

closely, the abdomen and the median portion of the prosternum very sparsely and finely, punctate.

Anterior cox rather small, separated by more than their own width. Legs slender.

Length 23, breadth 13 millim. (¢d @.-)

Hab. Panama, Bugaba (Champion).

One pair, the male partially abraded. Shorter, smaller, and smoother than

D. induta. the vestiture very sparse and fine, the under surface almost bare, the anterior

coxe smaller and more widely separated, the pygidium very short and inconspicuous,

the legs more slender.

GLYPTOBARIS.

Glyptobaris, Casey, Aun. N. York Acad. Sci. vi. pp. 466, 520 (1892).

This well-defined genus includes Baridius (Calandra) lituratus, F., from 8. America,

B. rugatus, Boh., from Mexico, B. rugicollis and B. evulsus, Kirsch, from Colombia,

and Onychobaris rugicollis, Lec., from N. America, the last-mentioned insect (the

specific name of which proves to be preoccupied) forming Casey’s type. ‘The different

species are very closely allied and variable, and they are by no means easy to

distinguish. The males have two transversely-placed tubercles on the basal portion

* The sexes of the Palearctic Baris spoliata, Boh., differ in the same way in the form of the pygidium.

3FF 2

404 RHYNCHOPHORA.

of the prosternum in a line with the posterior margin of the anterior cox, the first

ventral segment slightly flattened or depressed in the middle, and the rostrum usually

a little more distinctly punctured at the apex than in the females. In one of the new

forms now added, G. spinigera, the median carina of the prothorax in the fully-

developed male is produced into a long, stout, smooth, spiniform process, which

covers the scutellum and extends some distance along the suture; and in another,

G. simplex, the coarse punctures on the prothorax are rounded and not confluent.

.The prosternal depression is triangular, opaque, and flattened at the bottom, extending

narrowly backward between the coxe and becoming confluent anteriorly with the two

widely-separated subapical foveee; the pygidium is vertical, very short, not visible

from above ; and the mandibles do not overlap at the apex when closed. ‘The species

known to me may be separated thus :-—

a. Prothorax coarsely, rugosely punctate, the narrow raised interspaces

longitudinally or sinuously confluent.

a’. Elytra with finely punctured striz, the dorsal interstices confusedly

punctate at the base, the outer ones narrowly, interruptedly costate;

rostrum carinate at the base.

a’. Median carina of the prothorax not produced in the ¢; elytra

more uneven and with the vestiture sparser and more scattered . rugata, Boh.

b>. Median carina of the prothorax produced posteriorly into a long

stout spine in the fully-developed ¢; elytra less uneven, with the

vestiture more crowded on the basal half . . . . . 2. . . spinigera, sp. n.

b’. Elytra with more coarsely punctured or deeper strie, the interstices

uniseriate-punctate, the outer ones narrowly, uninterruptedly cos-

tate, the surface flattened, with very sparse vestiture.

c’, Prothorax obliquely narrowed, very coarsely sculptured; elytra

shining, the interstices with coarse scattered punctures. . . . solarii, sp. n.

d*. Prothorax rounded at the sides, less coarsely sculptured ; elytra

dull, the interstices with closely placed punctures. . . . . [rugicoliis, Kirsch. |

6. Prothorax less coarsely punctate, the raised lines more closely placed ;

elytra flattened, with finely punctured striz, the dorsal interstices con-

fusedly punctate at the base, the outer ones faintly costate. . lecontei,n.n. (rugicollis, Lec.).

c. Prothorax shallowly punctate, the raised sinuous lines fine and closely

placed.

c’. Elytra strongly nodose, the vestiture scattered and fasciculate; pro-,

meso-, and metapleura very coarsely sculptured . . . . . . . ([evulsa, Kirsch. ]

d’, Elytra feebly nodose, the vestiture condensed on the basal fourth ;

pro-, meso-, and metapleura more finely and densely sculptured* . [ iturata, F.]

d. Prothorax with closely placed rounded punctures, separate one from

another on the disc; elytra flattened, finely striate, the vestiture

* Characters teken from a specimen from Cayenne in British Museum.

GLYPTOBARIS. 405

1. Glyptobaris rugata, (Tab. XX. figg. 10, 104, 3.)

Baridius rugatus, Boh. in Scbénh. Gen. Cure. viii. 1, p. 170°.

3. Prosternum armed with two transversely placed tubercles in the middle near the base.

Hab. Muxico (coll. Solari), Tultepec [Toulcpec!], San Andres Tuxtla, Toxpam,

Playa Vicente, Cosamaloapam (Sailé), San Rafael Jicaltepec (Zownsend, in U.S. Nat.

Mus.), Motzorongo (Flohr), Jalapa, Oaxaca (LHége), Teapa (Hoge, H. H. Smith),

Temax in N. Yucatan (Gaumer); British Honpuras, Belize, Rio Hondo (Blan-

caneaux) ; GUATEMALA, La Tinta, Senahu, and San Juan in Vera Paz, Las Mercedes

(Champion), Trece Aguas (Barber & Schwarz, in U.S. Nat. Mus.) ; Nicaraaua,

Chontales (Belt); Costa Rica, Puerto Limon (Knab, in U.S. Nat. Mus.); Panama,

Tolé (Champion).

A widely-distributed and common insect in Central America, the series before me

varying greatly in the sculpture of the upper surface, the single examples from Costa

Rica and Panama having the elytra nodose, much as in G. evulsa (Kirsch).

2. Glyptobaris spinigera, sp.n. (Tab. XX. figg. 11, lla, ¢.)

Oblong, rhomboid-ovate, piceous, the tarsi ferruginous at the tip; the basal two-thirds of the elytra closely

variegated with coarse, and the rest of the upper surface with scattered narrow, elongate, ochreous scales,

the under surface and legs sparsely and finely setulose. Head very sparsely punctate, deeply trans-

versely sulcate between the eyes, the latter rather small; rostrum strongly arcuate, a little longer than

the head and prothorax, exceedingly stout, tapering towards the tip, somewhat abruptly bent inward at

about the apical third in the ¢, coarsely, rugosely punctate, subecarinate at the base, becoming much

smoother at the tip. Prothorax rounded at the sides anteriorly, very coarsely, confluently punctate, the

smooth, narrow, raised interspaces forming sinuous longitudinal ruge, the dise with a conspicuous median

carina, which in the fully-developed ¢ is produced into a long, stout, smooth, spiniform process. Llytra

rounded-triangular, flattened on the disc, narrowly punctate-striate, the interstices finely costate towards

the sides and apex, seriate-punctate, the punctuation becoming closer and irregular towards the suture

anteriorly. Beneath very coarsely, closely punctate. Basal process of the prosternum armed with two

stout compressed tubercles in the ¢. Legs rugosely punctate.

Length 31-42, breadth 17-2; millim. (¢ @.)

Hab. Mexico, Tapachula in Chiapas (Hége: 3g); GuaTEemMaLA, Zapote and San

Gerénimo (Champion).

Eight males and six females, one of the former with the prothoracic process small

and just covering the scutellum. The females are separable from those of G. rugata

by their more flattened and less uneven elytra. Perhaps an extreme form of G. rugata,

localised in Guatemala and the adjacent portion of Mexico? G. spinigera is the only

Barid known to me with a spiniform process to the base of the prothorax in the male.

3. Glyptobaris solarii, sp.n. (Tab. XX. fig. 12, 2.)

Oblong-rhomboidal, shining, piceous, the base of the antenne and the tarsi ferruginous ; very sparsely clothed

with long, pallid, setiform scales, the under surface and legs finely setulose. Head sparsely punctate,

deeply transversely sulcate between the eyes; rostrum strongly arcuate, very stout, tapering, about as

long as the head and prothorax, coarsely punctate, almost smooth at the tip. Prothorax obliquely and

406 RHYNCHOPHORA.

rapidly narrowing from the base, strongly constricted in front; very coarsely, confluently punctate, the

raised interspaces forming stout, sinuous, longitudinal ruge, the median carina rather broad and sharply

defined. Elytra oblong, rounded-triangular, transversely depressed on the disc before the middle, deeply

striate, the inner interstices each with a row of coarse scattered punctures, the outer ones sharply raised

and coarsely crenate-punctate.

Length 34, breadth 14 millim. ( 9.)

Hab. Nicaragua, Managua (Solari).

One specimen. Differs from all its allies in. the subconical, extremely rugose

prothorax, the coarse puncturing of the elytral interstices, and the very sparse

vestiture, which is not condensed into patches on the elytra.

4, Glyptobaris lecontei, n.n. (Tab. XX. fig. 13, 2, var.)

Onychobaris rugicollis, Lec. Proc. Am. Phil. Soc. xv. p. 297° (nec Kirsch).

Glyptobaris rugicollis, Casey, Ann. N. York Acad. Sci. vi. p. 520 *,

Hab. Norra America, Middle, Eastern, and Southern Atlantic States '?.—MeExico,

Almolonga in Puebla and Jalapa in Vera Cruz (Hoge).

Two females received from Mexico are a little larger than the specimens I have

seen of Leconte’s 0. rugicollis, and have the prothorax more coarsely sculptured, and

the elytral vestiture somewhat closer and coarser; but, to judge from the variation

observed in G. rugata, they cannot be treated as a separate species.

5. Glyptobaris simplex, sp.n. (Tab. XX. figg. 14, 14a, ¢.)

Oblong-ovate, moderately shining, nigro-piceous or black, the tarsi and antenne ferruginous; the basal half

of the elytra closely variegated with coarse, and the rest of the upper surface with scattered, oblong

ochreous scales, the under surface and legs sparsely setulose. Head sparsely punctate, deeply trans-

versely grooved between the eyes ; rostrum strongly arcuate, a little longer than the head and prothorax,

very stout, tapering towards the tip, coarsely, closely punctate, smooth at the apex, without basal carina.

Prothorax strongly rounded at the sides anteriorly, constricted in front, the sides parallel at the base ;

closely impressed with coarse, rounded punctures, which on the disc are separate one from another.

Elytra oblong-subtriangular, flattened, finely striate, the interstices confusedly punctate on the disc,

uniseriate-punctate and obsoletely costate at the sides. Beneath coarsely and closely, the median

portion of the abdomen very sparsely and finely, punctate. Basal process of the prosternum armed with

two compressed tubercles in the 3.

Length 4-41, breadth 18-23 millim. (d @.)

Hab. Guatemaa, Coban (Conradt: 3 ), Capetillo (Champion: @ ).

Two examples. Recognizable by the non-carinate and regularly punctured disc

of the prothorax.

RHYTIDOBARIS, gen. nov.

Mandibles short, notched within, decussate ; rostrum arcuate, moderately long, the antenne inserted at or a

little behind the middle, the antennal club ovate, small; prothorax bisinuate at the base; scutellum

small, transverse, free, concave ; elytra oblong-subcordate, slightly wider than the prothorax, the humeri

_ obtuse, leaving the upper portion of the mesothoracic epimera exposed; pygidium vertical, exposed ;

prosternum flattened, with two parallel impressed lines anteriorly (A. horrida), or broadly and shallowly

RHYTIDOBARIS. AQT

suleate (R. granulosa) from the apex to near the anterior coxa, the latter separated by at least their

own width; mesosternum depressed, exposed; legs short; femora abruptly excavate near the apex

beneath, unarmed (R. horrida) or feebly serrate and sulcate (R. granulosa); tibiee strongly unguiculate,

sinuous and more or less dentate at their outer apical angle (2. horrida), or the intermediate and

posterior pairs almost straight (R. granulosa), the anterior pair excavate at the apex beneath for the

reception of the base of the tarsus; tarsal claws short, free or narrowly separated ; body oblong-ovate,

rugose, setose or squamose.

Type, BR. horrida.

The two species placed under Rhytidobaris agree sufficiently well inter se to be

included in the same genus: the difference in the form of the prosternal sulcus is one

of degree, and that of the armature of the legs and of the vestiture of the upper

surface is perhaps unimportant. ‘The present genus is allied to Methyorrhina, Pascoe,

which has a peculiarly formed rostrum, a large, squamose scutellum, an unimpressed

prosternum, more approximate anterior coxe, &c. From Glyptobaris it may be known

by the decussate mandibles, parallel prosternal lines, &c.

1. Rhytidobaris horrida, sp.n. (Tab. XX. figg. 15, 15 a.)

Subopaque above, shining beneath, nigro-piceous ; sparsely clothed with rather long, erect, intermixed ochreous

and blackish setze, the punctures on the under surface each bearing a very minute ochreous scale, the

legs setulose. Head globose, small, bare, closely punctate, transversely grooved between the eyes;

rostrum moderately stout, about as long as the head and prothorax, shining, closely, the apical half more

sparsely, punctate, the antenne inserted near the middle, the funiculus stout, the club small aud densely

pubescent. Prothorax transverse, broad, narrow and feebly constricted in front, the sides strongly

rounded anteriorly and slightly converging towards the base ; very densely, finely, confluently punctate,

the extremely narrow interspaces sinuous or oblique. Elytra comparatively short, punctato-sulcate,

the interstices very little wider than the sulci, narrowly raised on either side and each with a row of

shallow oblong impressions. Pygidium short, small, densely punctate. Beneath coarsely, closely

punctate. Prosternal lines not reaching the anterior coxe, the intercoxal space flat and as wide as the

coxa. Femora unarmed. Tibiz short, sinuous, acute at their outer apical angle. Tarsal claws free.

Length 33, breadth 12 millim. (2?)

Hab, Panama, Caldera in Chiriqui 2100 feet (Champion).

One specimen. Smaller, narrower, and less rugose than the Brazilian Methyorrhina

hispida, Pasc., the rostrum arcuate and much more slender, the setze less numerous,

the scutellum small and almost bare, &c.

2. Rhytidobaris granulosa, sp. n. (Tab. XX. figg. 16 *, 16 a.)

Opaque above, shining beneath, nigro-piceous; somewhat sparsely clothed with small, narrow, adpressed

ochreous scales, those on the prothorax long and hair-like, and those on the elytra oblong-oval and

clustered into scattered fascicles on the alternate interstices, the third with an oblong patch at the base.

Head comparatively large, squamose, unimpressed between the eyes, densely punctate; rostrum

moderately stout, scarcely so long as the head and prothorax, rather sparsely, the basal portion closely,

punctate, the antenne inserted at a little behind the middle. Prothorax transverse, broad, narrow and

feebly constricted in front, the sides rounded anteriorly and subparallel at the base; densely, finely,

* Foreshortened in our figure.

408 RHYNCHOPHORA.

confluently punctate, and with indications of a raised median line, the extremely narrow interspaces

oblique or sinuous. Elytra finely punctate-striate, the dorsal strie slightly sinuate, the interstices flat,

rugulose and finely granulate, 8, 5, 7, and 9 wider than the rest. Pygidium rather large, densely

punctate. Beneath coarsely, closely punctate. Prosternum with a broad, parallel-sided, shallow,

bare sulcus. Anterior coxe separated by a little more than their own width, the intervening space

flat and very coarsely punctured. Femora feebly serrate along the edges of the shallow sulcus beneath.

Anterior tibia sinuate, the others almost straight. Tarsal claws small, narrowly separated.

Length 4, breadth 1,%, millim. (9?)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen. Larger and more robust than RB. horrida, the head larger, squamose,

and without transverse groove between the eyes, the vestiture entirely decumbent, the

elytral sculpture very different, the pygidium larger, the tarsal claws more approximate,

the prosternal excavation and tibie dissimilarly formed, the femora feebly serrate and

shallowly sulcate beneath.

LEPIDOBARIS, gen. nov.

Mandibles strongly decussate ; rostrum abruptly separated from the head, arcuate, moderately long, stout, the

apical portion parallel-sided and slightly wider than the basal portion, the scrobes rapidly descending,

the antenne inserted at about the middle, the antennal club stout and ovate; prothorax narrow, often

gibbous as seen in profile, transverse, deeply bisinuate at the base, constricted in front, the anterior

margin sinuate laterally ; scutellum free, transverse, concave, small; elytra much wider than the pro-

thorax, long, parallel-sided, separately rounded at the base and apex, often uneven or with prominent

subapical callosities; pygidium exposed, vertical, large, transverse; prosternum more or less sulcate

from the apex to as far as the middle of the coxe (indistinctly so in L. bifasctculata and L. nitidipennis),

the basal process narrowing forwards, short, and not prominent; anterior coxe exserted, narrowly

separated ; mesosternum depressed, the upper portion of the epimera visible from above; ventral

segments 1 and 2 connate at the middle, 5 with a small truncated prominence at the apex in the ¢;

femora unarmed, sublinear ; tarsal claws long, narrowly separated ; body elongate or oblong, more or less

squamose, the scales often clustered into crests or fascicles on the prothorax or elytra.

Type, L. acnasta.

Five species are referred to this genus, the type being a common insect in Costa

Rica, L. bifasciculata and L. nitidipennis differing from the rest in having a very

shallow prosternal sulcus. Lepidobaris is perhaps nearest related to Trichobaris and

Stictobaris, though their respective representatives are very different in appearance.

L. acnisti and L. opacipennis have prominent, tuberculiform, subapical callosities, and

the black vestiture of the prothorax and elytra clustered into patches or fascicles,

much as in Ambates solani and its allies. Methyorrhina, Pasc., from Brazil, is also

an allied genus.

a. Elytra partly or entirely opaque, with prominent, tuberculiform, subapical

callosities.

a'. Prothorax and elytra with velvety-black patches on the disc, in addition to

the other vestiture.

a’. The black scales on the prothorax condensed into two sinuous lines . . aenisti.

6°. The black scales on the prothorax condensed into two triangular patches. opacipennis.

LEPIDOBARIS. 409

6’. Prothorax and elytra with scattered ochreous scales only, these latter

condensed into two prominent fascicles near the apex . . . . . . . Otfasciculata.

6. Elytra shining, the subapical callosities inconspicuous.

c'. Elytra with very large, scattered, subtriangular, white scales intermixed with

small darker scales . 2... ww ee eee ee ee ee. Latisquamis.

d’, Elytra with moderately large, scattered, subtriangular scales intermixed

with small darker scales 2. 2. 1. ww ew ee ee ew we nitidipennis.

1. Lepidobaris acnisti, sp.n. (Tab. XX. figg. 17, 17 a, 4, 3.)

Elongate, opaque, the inner half of the elytra, the median line of the prothorax, the abdomen, and meta-

sternum shining, black, the antenne and tarsi in part or entirely ferruginous; the rostrum with the

basal half (¢) or base (2) fulvo-squamose; the prothorax variegated with stout, erect, intermixed

velvety-black and fulvous scales, the black ones clustered into two sinuous lines along the middle of the

disc ; the elytra with irregular, coalescent, oblong patches of broad, imbricate, intermixed velvety-black,

fulvous, and whitish scales extending down the disc from a little below the base to the apex ; the legs

and the under surface of the prothorax fulvo-squamose, the rest of the ventral surface (except in the ¢ )

almost bare. Head closely punctate; rostrum ( ¢ ) stout, about as long as the head and prothorax, densely

punctate, and opaque, ( 2) a little longer and more slender, flatter, very sparsely punctate, and bare from

near the base. Prothorax strongly transverse, gradually narrowing from the base, constricted in front ;

densely, finely punctate, except along the smooth central line. Elytra long, transversely depressed on

the dise before and beyond the middle, the humeri rounded and slightly tumid; finely punctate-striate,

the interstices broad, finely, confusedly punctate, flat, the fifth swollen into an oblong hump at its point

of termination. Pygidium densely punctate. Beneath coarsely and closely, the ventral segments very

sparsely and finely, punctate, 1 and 2 with a hollowed, closely punctate, densely fulvo-pilose space down

the middle in the ¢, and 5 with a truncated prominence at the centre of the apical margin, on either

side of which is a semicircular emargination, in this sex. Prosternum suicate, the sulcus deep and

limited by a sharp ridge on each side anteriorly, shallow and V-shaped between the coxe, the latter

hollowed within and separated by less than half their own width. Legs rugosely punctate,

Length 4-54, breadth 14-23 millim. (d 2.)

Hab. GuateMaLa, Duefias (Champion); Costa Rica, Irazu (fogers), San José

( Biolley).

Sent in abundance by the late P. Biolley, who found it on the leaves of the

“ ouitite” (Acnistus arborescens, Schlecht.), a shrub of the order Solanacee. A

remarkable form, with the general facies of an Ambates.

2. Lepidobaris opacipennis, sp. n. (Tab. XX. figg. 18, 18a, ¢.)

Oblong, opaque, the prothorax, metasternum, and abdomen, and sometimes the sutural region of the elytra

also, shining, black, the antenne and tarsi ferruginous; the rostrum fulvo-squamose at the base; the

prothorax thickly clothed with coarse, semierect, intermixed velvety-black, fulvous, and whitish scales,

the black scales almost entirely condensed into two large triangular patches on the basal half; the elytra

with a dense elongate patch of coarse velvety-black scales at about the middle of the second and third

interstices and an oblong black spot at the apex of the fifth, the space between the median patch and the

suture set with a few broad, triangular, fulvous or whitish scales, the vestiture of the rest of their

surface in great part blackish and inconspicuous ; the under surface almost bare. Head finely punctate ;

rostrum (¢ ) stout, a little longer than the head and prothorax, gibbous at the base, opaque, and densely

punctate, (Q) strongly arcuate, longer, and smoother. Prothorax short, abruptly constricted in front,

appearing angulate at the sides anteriorly ; densely, finely punctate. LElytra moderately long, flattened,

transversely depressed on the disc before and beyond the middle, and compressed at the sides below the

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. 3GG

410 RHYNCHOPHORA.

humeri; finely punctate-striate, the second and third strie sinuous, the interstices alutaceous, closely

punctate, flat, 5 raised into an oblong hump at its point of termination. Pygidium densely punctate.

Beneath closely and coarsely, the ventral segments very sparsely and finely, punctate, 1 and 2 with a

depressed fulvo-pilose space down the middle, and 5 with a truncated prominence in the centre at the

apex, inthe ¢. Prosternum as in ZL. acnisti. Anterior coxe narrowly separated.

Var. The velvety-black patch on the middle of each elytron reduced to a streak on the third interstice, the

larger pallid scales wanting.

Length 23-34, breadth 13-18 millim. .(d 2.)

Hab. Guatemata, El Tumbador, Zapote, Capetillo, Duefias (Champion); Panama,

Volcan de Chiriqui (Champion).

Numerous examples. The form selected as typical (fig. 18) is from the Pacific slope

of Guatemala, the other from Chiriqui. Smaller and less elongate than L. acnisti ;

the prothorax abruptly constricted in front, and with two large triangular patches of

black scales on the basal half of the disc; the elytra much shorter, with the dorsal

strie sinuous and the black patches reduced in size. The male-characters are similar

in the two species.

3. Lepidobaris bifasciculata, sp.n. (Tab. XX. figg. 19, 19a, 3.)

d. Elongate, rather narrow, depressed, opaque, the abdomen shining, black, the antenne, tip of the rostrum,

and tarsi ferruginous; the head avd rostrum, the prothorax above (especially along the median line) and

beneath, the scutellum, the apex of the elytra, pygidium, the third and fourth ventral segments at the

sides and the fifth at the apex, and the legs, sparsely clothed with long, coarse, narrow, ochreous scales,

some of those near the apex of each elytron erect and clustered into a dense prominent fascicle, the rest

of the surface almost bare. Head closely punctate, squamose above ; rostrum not longer than the head

and prothorax, moderately stout, gibbous at the base, rugulosely punctate and squamose to the tip.

Prothorax narrow, transverse, subcylindrical, constricted in front; closely punctate, except along an

oblong space near the margin. Elytra long, somewhat widened posteriorly, flattened, transversely

depressed on the disc below the base and near the middle, the humeri not prominent; very finely and

shallowly punctate-striate, the interstices densely alutaceous, faintly uniseriate-punctate, flat, the fifth

swollen into an oblong hump at its point of termination, the third with a compressed tuberculiform

prominence near the apex. Pygidium densely punctate. Beneath closely and coarsely, the ventral

segments very sparsely and finely, punctate, 1 and 2 with a densely punctate, ochreo-pilose excavation

extending down the middle, 5 truncate in the centre at the apex. Prosternum slightly hollowed behind

the transverse subapical groove. Anterior coxe narrowly separated.

Length 42, breadth 12 millim.

Hab. Panama, Volcan de Chiriqui (Champion).

One male. In this insect the long, narrow ochreous scales on the elytra are almost

entirely placed on the apical fourth, and there mainly clustered into a prominent,

spiniform fascicle, while those on the prothorax are condensed into a median line.

4, Lepidobaris latisquamis, sp. n. (Tab. XX. figg. 20, 20 a, b, 2.)

Oblong, shining, the prothorax beneath and the sternal side-pieces opaque, black, the antenne and tarsi more

or less ferruginous; the rostrum albo-squamose at the base; the prothorax clothed with coarse, inter-

mixed, adpressed ochreous or whitish and semierect black scales, the pallid scales mainly condensed into

a dense, sharply-defined, sinuous vitta on each side and an interrupted median line : the elytra with

- intermixed subseriately arranged, oblong blackish (or brown) and irregularly distributed, very large, fan-

LEPIDOBARIS,—TRICHOBARIS. All

shaped white scales; the under surface and legs also with intermixed minute and larger white scales,

the latter condensed into spots on the sides of the third and fourth ventral segments and an annulus near

the apex of one or more of the femora, Head finely punctate ; rostrum (¢) stout, gibbous at the base,

curved, about as long as the head and prothorax, rugosely punctate, ( 2 ) more elongate and with the bare

apical portion longer and much smoother. Prothorax transverse, abruptly constricted in front, coarsely,

closely punctate, and with indications of a smooth median line. Elytra moderately long, flattened on the

disc, transversely depressed below the base, the subapical callosities not prominent ; sharply, narrowly

striate, the strie feebly punctate, the interstices flat, irregularly seriate-punctate, becoming rougher

towards the sides. Pygidium densely punctate. Beneath coarsely and closely, the ventral segments

more finely and sparsely, punctate, 1 and 2 with a depressed, ochreo-pilose space down the middle, and

5 with a truncated prominence in the centre at the apex, in the ¢. Prosternum as in L, acnistt.

Length 32-4415, breadth 13-2 millim. (¢ 2.)

Hab. Mexico, Chilpancingo (HW. H. Smith), Yolos and Juquila in Oaxaca (Sallé).

Six specimens. Nearly related to L. opacipennis: the elytra shining, and clothed

with intermixed very large scattered white and small blackish scales, the subapical

callosities not prominent; the prothorax abruptly constricted in front, and with a

densely squamose sinuous, marginal, whitish or ochreous stripe; the femora more

or less annulate with white near the tip. The large fan-shaped scales on the elytra

(fig. 20 6) are as broad as the interstices.

5. Lepidobaris nitidipennis, sp.n. (Tab. XX. figg. 21, 21a, ¢.)

Very like LZ. latisquamis, but with the scattered subtriangular whitish scales on the elytra (fig. 21 a) much

smaller (those on the disc not half the width of the interstices 2-9), the sinuous marginal stripe on the

prothorax reduced to a narrow, oblique, interrupted streak, the median line represented by a short streak

at the base, the rostrum and femora without dense patches of white scales ; the rostrum less gibbous at

the base, in the Q more slender, much longer, and with the apical half smooth; the elytra transversely

depressed on the disc before and beyond the middle, finely striate, the interstices (the first excepted)

confusedly punctate, the subapical callosities more prominent ; the prosternal sulcus shallow or wanting ;

the ventral segments 1 and 2 with a depressed, densely fulvo-pilose space down the middle, and 5 with

a truncated prominence in the centre at the apex, in the ¢.

Length 33-4, breadth 13-2 millim. (¢ 2.)

Hab. Mexico (Mus. Brit.), Cordova, Toxpam (Sal/é).

Two males and one female. This appears to be the Vera Cruz (or Atlantic slope)

form of L. latisquamis, and one that requires a distinctive name.

TRICHOBARIS.

Trichobaris, Leconte, Proc. Am. Phil. Soc. xv. p. 287 (1876) ; Casey, Ann. N. York Acad. Sci. vi.

pp. 467, 561.

The species of this genus inhabit the Southern United States and Mexico, some of

them being very destructive to potato and tobacco crops, as well as to various

wild and cultivated Solanaceous plants. The true 7. trinotata (Say), the “ potato-

stalk weevil” *, has recently reached as far north as Canada, but it has not yet been

* For an account of the habits and distribution of this species, see Chittenden, U.S. Dep. Agric., Div. Ent.,

Bull. no. 33, n. ser. pp. 9, 10 (1902).

3 GG 2

412 RHYNCHOPHORA.

seen south of Texas, and the Mexican insects standing under that name in collections

are referable to 7. vestita or T. soror. The described forms are difficult to distinguish ;

those inhabiting Mexico may be separated thus :—

a. Prothorax with a small denuded spot on each side at the base,

rarely obsolete.

a’. Prothorax usually with a large partially denuded space on the

| flanks; rostrum short and more or Jess curved in both sexes ;

body flattened above.

a’. Ventral segments 3 and 4 bare at the base, the vestiture of

the basal depression of ¢ different from that of the rest

ofthe surface . . . . 2. . . wwe Ove stit0a, Boh.

6’. Ventral segments 3 and 4 with their median third bare, the

vestiture of the basal depression of ¢ similar to that of

the rest of the surface . . . . 1... ee) «omucorea, Lee.

6’. Prothorax with at most one or two small bare spots on the

flanks, usually entirely albo-squamose.

c’. Rostrum short and curved in both sexes; body somewhat

convex above, with the vestiture denser and rather coarse. compacta, Casey.

d*, Rostrum short and feebly curved in g, much longer and

almost straight in ¢ ; body flattened above, with the

vestiture finer . . 2. 1. ee ee ee we) «SOFOF, SP. NT.

6. Prothorax without denuded spots at the base ; body narrow.

c’. Vestiture moderately coarse, above and beneath . . . . . pellicea, Boh. (tevana, Lec.).

d’. Vestiture coarser, the scales on the under surface broader. . cylindrica, Casey.

1. Trichobaris vestita. (Tab. XX. fig. 22, ¢.)

Baridius vestitus, Boh. in Schénh. Gen. Cure. iii. p. 718' (part.) (nec op. cit. vill. p. 171, 27).

Hab. Mexico! (Trugui, in Mus. Brit.), Guanajuato, Toxpam, Etla (Sallé), Orizaba

(H. H. Smith), Jalapa (M. Trujillo), Mexico city, Cerro de Plumas, Oaxaca (Hége),

Cuernavaca, Cordova (U.S. Nat. Mus.), Puente de Ixtla (Wickham), Tehuantepec

(Mus. Brit.).

The name vestita is here applied to the form common in Vera Cruz and Oaxaca; the

female subsequently described in Schonherr’s work? is no doubt referable to 7. soror.

The present species (sunk as synonymous with 7. trinotata, Say, by Leconte, and

queried as possibly identical with 7. mucorea, Lec., by Casey) has the rostrum short

and abruptly bent downward from the base in both sexes (fig. 22), the prothorax

usually with a large space on the flanks almost bare, and the depressed space cn the

basal half of the abdomen of the male thickly clothed with coarse, long, radiating

scales. 7’. vestita is a little less elongate than 7’. mucorea, the rostrum is less curved

(appearing more abruptly gibbous at the base), the median space on the ventral

segments 3 and 4 is denuded at the base only, and the depression of the male is clothed

TRICHOBARIS. 415

with modified scales. In the single specimen from Cuernavaca the vestiture of the

upper surface is dark brown, except at the sides of the prothorax, where it is white,

and one (@ ) from Guanajuato wants the bare space on the propleura.

2. Trichobaris mucorea.

Baridius mucoreus, Lec. Proc. Acad. Phil. 1858, p. 79'; 1868, p. 364’.

Trichobaris trinotata, var. mucorea, Lec. Proc. Am. Phil. Soe. xv. p. 288°.

Trichobaris mucorea, Casey, Ann. N. York Acad. Sci. xv. pp. 562, 564°.

Hab. Norvn America, Southern California and Arizona*, Texas; Lower

Catirornia 4.—Mexico, Mexican boundary (Morrison), Ventanas (Morrer), San Blas

(U.S. Nat. Mus.), Durango city ([/ége). |

Specimens of this species (¢ 2 ) from San Blas and other localities in N.W. Mexico

agree perfectly with those before me from California and Texas. ‘The vestiture of the

ventral depression of the male, as stated by Casey, is uniform with that of the rest of

the under surface, and the median space on the segments 3 and 4 is almost entirely

bare. The San Blas examples are labelled as having been found on_ tobacco.

T. mucorea is known in the United States under the name of the ‘“ Tobacco-stalk

weevil,” and it is also said to attack Solanum carolinense and Datura stramonium and

D. tatula (cf. Bridwell, U.S. Dep. Agric., Div. Ent., Bull. no. 44, pp. 44-46 (1904) |.

8. Trichobaris compacta.

Trichobaris compacta, Casey, Ann. N. York Acad. Sci. vi. pp. 568, 566".

Hab. Nortu America, Southern California and Arizona!, New Mexico.— Mexico,

Mexican boundary (Morrison), Pinos Altos in Chihuahua (Buchan-Hepburn), ‘Tres

Marias Is., Presidio, Ventanas (forrer), Durango city (Hdége).

Specimens from Durango differ from those from the other Mexican localities, as well

as from the examples before me from California and Arizona, in having small partly

denuded spots on the flanks of the prothorax and the vestiture of the upper surface

brownish-ochreous or brownish-cinereous. 7. compacta is less elongate and more

convex than 7. mucorea, the vestiture is a little coarser, and the ventral depression

of the male is deeper, and more sparsely and not so coarsely squamose. Cockerell

has found it upon Datura meteloides in New Mexico and Bridwell records it as breeding

in the seed-pods of the jimson (Datura).

4. Trichobaris soror, sp.n. (Tab. XX. figg. 23, 23a, 9.)

Baridius vestitus, Boh. in Schénh. Gen. Cure. viii. 1, p.171 (¢, nec ¢)°.

Oblong, flattened above, black, rather dull; thickly clothed with narrow cinereous or pale brown scales,

which are transversely arranged on the prothorax and obliquely so on the elytral interstices, the

yestiture of the under surface and legs coarser, denser, and wholly white, that of the antennal club in

great part brown, the prothorax with a small spot on each side at the base, the scutellum, and sometimes

a spot on each shoulder, almost bare, the ventral segments 3 and 4 with a narrow bare transverse space

414 RHYNCHOPHORA.

in the middle at the base. THcead glabrous, finely punctate, transversely grooved between the eyes;

rostrum gibbous at the base, (¢) short, stout, and feebly curved, (@ ) longer than the head and

prothorax, more slender, and almost straight, in both sexes closely punctate and squamose, the antenne

inserted at (@) or beyond (¢) the middle, the antennal club acuminate-ovate and moderately large.

Prothorax transverse, constricted in front and slightly sinuate at the sides at about the middle; densely

confluently punctate, and sometimes with indications of a faint median carina, Elytra flattened on the

disc, rather broad, parallel-sided, separately rounded at the apex, and with rather prominent subapical

callosities ; finely punctate-striate, the interstices densely punctate. Beneath densely punctate.

Prosternum slightly depressed along the middle. Ventral segments 1 and 2 broadly and shallowly

excavate, and clothed with rather narrow scales, in the, d, the vestiture of the corresponding space in

the 9 similar to that of the rest of the surface.

Length 44-63, breadth 2-27 millim. (3 @.)

Hab. Mexico! (Zruqui, in Mus. Brit.; Herrera, in US. Nat. Mus.), Durango

(Dr. Palmer, in U.S. Nat. Mus.), Guanajuato, Parada (Sallé), Matamoros Izucar (£6ge),

Tehuantepec (Mus. Brit.).

Numerous examples, the selected types (¢ 2) being from Guanajuato. Very like

T. mucorea, Lec., but with the rostrum less curved in the male, and elongated and

almost straight in the female, the propleura with, at most, one or two small partially

denuded spots on the flanks, the ventral segments 3 and 4 with a narrower bare space

at the base. The long and almost straight rostrum of the female separates 7. soror

from all the other species described by Casey. |

5. Trichobaris pellicea. (Tab. XX. figg. 24*, 24a, ¢.)

Baridius pelliceus, Boh. in Schénh. Gen. Cure. viii. 1, p. 160°.

Trichobaris téaana, Lec. Proc. Am. Phil. Soc. xv. p. 288°; Casey, Aun. N. York Acad. Sci. vi.

pp. 563, 566 *.

Hab. Nortu America, New Mexico, Colorado’, Texas? ?.—Mexico! (Trugut, in

Mus. Brit.), Durango city (Hége), Matamoros Jzucar (Sailé), Mexico city (U.S. Nat.

Mus.), Puente de Ixtla (Wickham).

The “type” of this species, communicated by Dr. Sjéstedt, is labelled ‘* Calif.,”

and it does not differ from the N.-American 7. terana, Lec, ‘This insect may be

known by tle dense uniform vestiture of the upper and under surfaces, the scutellum

only being partially denuded, and its narrow, rather convex shape. ‘The ventral

depression of the male is clothed with narrower setiform scales. In some of the

Mexican specimens the vestiture of the upper surface is brown with a few white scales

intermixed, the sides of the prothorax being also white. 7. texana, according to

Bridwell, attacks the bull nettle (Solanum rostratum). The length varies from 34-6,

and the breadth from ]4-23 mm.

6. Trichobaris cylindrica.

Trichobaris cylindrica, Casey, Ann. N. York Acad. Sci. vi. pp. 563, 567°.

Hab, Nortu America, Arizona !.—Mexico, Monclova in Coahuila (Dr. Palmer).

* Foreshortened in our figure.

TRICHOBARIS.—ANOPSILUS., 41)

A single specimen (¢) from Coahuila seems to belong to this species. It differs

from T\. pellicea (tewana) in having larger scales, on both the upper and under

surfaces.

CYANOBARIS, gen. nov.

Mandibles short, decussate ; rostrum (fig. 25a) very short and stout, almost straight, abruptly, transversely

gibbous at the base, widening outwards, the scrobes rapidly descending, the antenne inserted towards

the apex, the antennal club ovate; prothorax shortly tubulate at the apex and broadly subtruncate at

the base ; scutellum transverse, free, prominent ; elytra a little wider than the prothorax, very elongate :

- pygidium very large, exposed, declivous ; prosternum unimpressed behind the transverse subapical groove,

the basal portion short; mesosternum long and depressed, the meso-metasternal suture in a line with

the posterior margin of the middle coxe; anterior coxe exserted, narrowly separated; femora linear,

sharply dentate, the posterior pair nearly reaching the third ventral suture ; tibie unguiculate ; tarsal

claws subconnate at the base; body very elongate, narrow, depressed, linear, metallic.

Type, C. rufiventris. .

This genus seems to be related to Lichnus, Lacordaire, but it is best placed in the

section “ Baridiides vrais” of that author. The general shape is that of a Cossonid.

1. Cyanobaris rufiventris, sp.n. (Tab. XX. figg. 25, 25 a.)

Opaque, alutaceous, cyaneous, the abdomen rufous and moderately shining; almost glabrous above, the

punctures on the under surface and legs each bearing a small, hair-like scale. Head densely punctate ;

rostrum scarcely longer than the head as seen in profile, rugosely punctate. Prothorax very little

broader than long, gradually narrowing from the base to the tubulate apical portion, the base feebly

sinuate on each side; closely impressed with coarse rounded punctures, except along the median line.

Elytra parallel for about three-fourths of their length, flattened down their inner half, the humeri

rounded; shallowly punctate-striate, the interstices flat, rather coarsely and closely uniseriate-punctate ,

the puncturing becoming coarser and denser towards the base. Pygidium densely, rugulosely punctate.

Beneath very coarsely and closely, the ventral segments 2-5 more sparsely and finely, punctate. Legs

rugosely punctate, rather slender.

Length 64, breadth 2 millim. (9 ?)

Hab. Mexico, Santecomapan * in Vera Cruz (Sallé).

One specimen.

ANOPSILUS.

Anopsilus, Kirsch, Berl. ent. Zeitschr. 1869, p. 218.

Balbus, Pascoe, Ann. & Mag. Nat. Hist. (6) iv. pp. 822, 323 (1889).

The type of Anopsilus is A. bonvouloiri, Kirsch, and that of Balbus, Centrinus

conicollis, Boh. ‘The species of this genus have large, prominent, subcontiguous

anterior coxe, and the male of A. conicollis, like that of various other S.-American

forms, has two short prosternal spines. Cenfrinus suberbificus, suspensus, obniger,

asphaltinus, capreolus, and oblongus, Boh., probably belong here. ‘They are all

oblong, polished, black, almost glabrous insects, with a more or less conical

prothorax, &c.

* Sometimes written “ Santa Maria Comapa” or “ Santa Maria Acomapan.”

416 RHYNCHOPHORA.

1. Anopsilus bonvouloiri. (Tab. XX. figg. 26, 26a, 3.)

Anopsilus bonvouloiri, Kirsch, Berl. ent. Zeitschr. 1869, p. 219°.

Anopsilus mexicanus, Solari, Ann. Mus. Genova, xlii. p. 440 (1906) *.

Centrinus levistriatus, Chevr. in litt. *

Hab. Mexico (Mus. Brit. ; Hoge? ; Flohr), Playa Vicente, Toxpam (Sailé), J alapa,

vordova (£/dge) ; GuaTEMALA, San Gerdénimo and Sinanja in Vera Paz (Champion).—

CoLomBiA, Bogota }.

Not uncommon in the Mexican State of Vera Cruz, some specimens having the

elytra obsoletely striato-punctate (A. bonvouloiri) and others the elytra finely but

distinctly punctate-striate (A. mexicanus). The prosternum in both sexes is more or

Jess fulvo-pilose along the middle (the sulcus included) from the apex to the base, the

vestiture being abundant behind the anterior coxe. The male has a very large oval

depression on the first ventral segment. ‘The antenne are inserted towards the apex

in both sexes. I have seen the types (¢ 3) of Kirsch and Solari; the locality “ Sierra

Durango,” quoted by the last-mentioned author 2, requires confirmation.

LEPTINOBARIS, gen, nov.

Mandibles short, decussate; rostrum moderately long, arcuate, cylindrical, the antenne inserted beyond the

middle, with joints 2-7 of the funiculus short and closely articulated, and the club ovate; prothorax

feebly sinuate at the base; scutellum oblong, subquadrate, flat; elytra elongate, conjointly rounded at

the apex; pygidium short, exposed, vertical; prosternum with a shallow, parallel-sided sulcus, which

extends forwards to the apex and terminates in the v-shaped space between the narrowly-separated,

rather small anterior coxe, the basal portion very short and depressed; mesosternum depressed,

exposed ; metathoracic episterna narrow ; ventral segment 5 very little longer than 3 or 4,1 and 2

connate; legs short; femora unarmed, the anterior pair feebly clavate; anterior tibix (¢ ) strongly

bi- (fig. 27 5), and the others feebly uni-, unguiculate; tarsal claws minute, connate at the base ; body

narrow, subcylindrical, polished.

Type, LZ. bidens.

The type ot Leptinobaris is of the same general shape as Stenobaris avicennia, Linell,

which also has narrowly separated anterior coxee; but the two genera are not otherwise

very Closely related. The strongly biunguiculate anterior tibiz is a striking character,

and one that is also to be found in the male of “ Centrinus” suspensus, Boh., an

insect probably belonging to the genus Anopsilus. Microbaris, Casey, based upon

a minute Texan insect, seems to be nearly related to Leptinobaris.

1. Leptinobaris bidens, sp. n. (Leptobaris bidens, Tab. XX. figg. 27%,

27 a,b, 3).

Very shining, black, the antenne and tarsi ferruginous ; almost glabrous above, the prosternum (including

the sulcus) and metathoracic episterna somewhat thickly, and the rest of the under surface very sparsely,

clothed with narrow hair-like whitish scales. Head very sparsely, minutely punctate, faintly foveate

between the eyes; rostrum nearly as long as the head and prothorax, rather slender, very sparsely,

* The insect is narrower and more cylindrical than represented on the Plate. The generic name Leptobaris

proves to be preoccupied.

LEPTINOBARIS.—DOLICHOBARIS. ALT

finely punctate, smooth at the tip. Prothorax convex, nearly as long as broad, narrowed in front, the

sides rounded anteriorly and parallel behind ; very sparsely, minutely punctate and with a row of coarser

squamigerous punctures along the basal margin. Scutellum smooth. LElytra long, very gradually

narrowing from about the basal third; finely punctate-striate, the interstices broad, flat, and almost

smooth. Pygidium rugulosely punctate. Beneath closely and coarsely, the abdomen very sparsely and

finely, punctate ; first ventral segment shallowly sulcate down the middle.

Length 22, breadth 1 millim. (<¢.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One specimen.

MACROBARIS, gen. nov.

Mandibles short, decussate ; rostrum (fig. 28 a) very short, stout, abruptly bowed from the base, flattened anc

thinner at the tip, the antenne inserted at the middle, joints 2-7 of the funiculus short and closely

articulated, the club small, ovate, the scrobes deep and oblique; eyes large, transverse ; prothorax feebly

sinuate at the base; scutellum small, oblong, subquadrate, flat; elytra very elongate; pygidium exposed,

strongly transverse, subvertical ; prosternum with a deep, sharply-defined sulcus, which is obliquely

narrowed from the apex to the subcontiguous, large, exserted anterior coxve, the very narrow space

between the latter not raised and on a level with the short basal portion ; mesosternum short, depressed ;

metathoracic episterna narrow ; ventral segments 2 and 5 equal in length, 3 and 4 each about half as

long as 2; legs moderately long; femora unarmed, sublinear; tibie slender, strongly unguiculate, the

claw on the anterior pair ( ¢) very long; tarsal claws minute, connate at the base; body very elongate,

narrow, cylindrical, polished, almost glabrous.

Type, M. producta.

This genus, based on a single species, from Guatemala, is nearly allied to Leptinobaris,

from which it may be distinguished by the large, prominent, subcontiguous anterior

coxee (the space between them not in the least raised), the deep anteriorly-widened

prosternal sulcus, the differently formed rostrum, the uni-unguiculate anterior tibie

(in the male), the very elongate elytra, &c. The only described S.-American genus

approaching Macrobaris is Parallelosomus, Schonh.

1. Macrobaris producta, sp.n. (Tab. XX. figg. 28, 28a, b, ¢.)

Shining, black, the antenne and tips of the tarsi obscure ferruginous ; almost glabrous above, the pygidium

and under surface with a few fine hair-like whitish scales. Head sparsely, finely punctate, deeply

foveate between the eyes; rostrum a little longer than the head as seen in profile, sparsely punctate,

smooth at the tip. Prothorax slightly longer than broad, rather convex, narrowing from about the

middle, feebly constricted in front ; very sparsely, finely punctate. Scutellum smooth. LElytra a little

wider than, and about two and one-half times the length of, the prothorax, subparallel, somewhat

produced at the apex, the apices each with a small angular prominence, the humeri rounded; finely, but

sharply punctate-striate, the interstices flat and almost smooth. Pygidium rugulosely punctate. Beneath

very sparsely punctate ; ventral segment 1 deeply, and 95 shallowly, excavate down the middle.

Length 33-4, breadth 1 millim. (<¢.)

Hab. Guatemata, Duefias (Champion).

One specimen.

DOLICHOBARIS, gen. nov.

(D. opaciceps), the antenne inserted near ( 3) or behind ( 2) the middle, the joints 2-7 of the funiculus

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. 3 HH

418 RHYNCHOPHORA.

short, narrow, the club pubescent, ovate, and rather stout; eyes rather large; prothorax short, very

feebly sinuate at the base; scutellum free, subquadrate ; elytra cblong or elongate, much wider than the

prothorax, subparallel in their basal half; pygidium exposed; prosternum not or feebly impressed down

the middle, the basal portion short and depressed ; anterior coxe subcontiguous or narrowly separated :

mesosternum exposed, depressed ; ventral segments 2 and 5 subequal in length, 1 and 2 connate; femora

feebly clavate, unarmed; tibia narrow, almost straight, strongly unguiculate; tarsi slender, the lobes

of the third joint narrow, the claws free; body elongate or oblong, narrow, almost glabrous.

Type, D. opaciceps.

A genus including three small, closely allied forms—two from Central America and

Laridius longirostris, Kirsch, from Peru. They bear a certain resemblance to various

members of the genera Limmnobaris (L. eneola, L. pygmea, &c.) and Pseudobaris

(P. angustula, Lec., &c.), as well as to Desmoglyptus crenatus (Lec.), but are readily

separated therefrom by the comparatively narrow prothorax, which is feebly sinuate at

the base, the parallel-sided elytra, &c. The abrupt antennal club, the non-sulcate

prosternum, the subcontiguous or narrowly separated anterior cox, and the exposed

pygidium are also characteristic of Dolichobaris.

1. Dolichobaris opaciceps, sp. n. (Tab. XX. figg. 29, 29a, 3; 30, 2.)

Elongate, finely alutaceous, moderately shining or subopaque, varying in colour from testaceous to piceous.

Head densely alutaceous, opaque, obsoletely punctate; rostrum (¢) about as long as the head and

prothorax, shining, moderately stout, and somewhat closely punctate, (2) much more elongate, slender,

and almost smooth in its outer half, the antennz in the ¢ inserted slightly beyond, and in the Q at a

little behind, the middle. Prothorax transverse, rather convex, narrowed and feebly constricted in front,

the sides rounded anteriorly and parallel behind ; closely punctate, except along the narrow median line.

Iilytra elongate, transversely or obliquely depressed on the disc below the base, conjointly rounded at the

apex; finely punctate-striate, the interstices flat on the disc, convex at the apex, obsoletely uniseriate-

punctate. Pygidium rather large, densely punctate. Beneath somewhat closely,.the abdomen very

sparsely and finely, punctate. Prosternum slightly depressed in the middle behind the subapical groove.

Anterlor coxe very narrowly separated.

Length 23-33, breadth 1-1} millim. (¢ Q.)

Hab. Mexico (coll. Solari: 3); Guatemata, Trece Aguas in Alta Vera Paz

(Schwarz and Barber, in US. Nat. Mus.: 2); Panama, Volcan de Chiriqui 3000 feet

(Champion: 3 2).

Six specimens from Chiriqui, one from Guatemala, and one from Mexico, the last-

mentioned larger and more robust than the others, but evidently belonging to the same

species. Duller and relatively narrower than the Peruvian D. longirostris (Kirsch) (the

type, ¢, of which is before me), the prothorax more densely punctate, the rostrum

slender and greatly elongated in the female, the elytra less depressed below the base.

‘The variation in colour may be due to immaturity.

2. Dolichobaris schwarzi, sp. n.

Less elongate and more shining than D. opaciceps, nigro-eneous in colour; the head transversely grooved

between the eyes; the rostrum only a little longer in the ¢ than in the 2, the antenne inserted at (¢)

_ or slightly behind ( Q ) the middle; the prothorax closely punctate; the elytra less elongate; the anterior

DOLICHOBARIS.—ODONTOBARIS. 419

coxee less approximate; the first ventral segment shallowly sulcate down the middle in the ¢, the

anterior tibie with a long apical uncus in this sex.

Length 2;4-3, breadth 1-14 millim. (¢ @.)

Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith); Guatemata, Las Mercedes,

Chiacam, Cahabon (Champion), Trece Aguas in Alta Vera Paz (Schwarz and Barber,

in U.S. Nat. Mus.) ; Nicaragua, Managua (Solari).

Nine specimens. ‘This insect might be taken fora small Limnodaris, near L. pygmea,

if the exposed pygidium, &c., were not taken into account.

ODONTOBARIS, gen. nov.

Mandibles pointed, almost straight on their inner edge, bidentate on their lower edge externally (fig. 31 a):

rostrum straight, flat, rather slender, widened in their outer half, the scrobes obliquely descending and

sinuous beneath, the antenne inserted at the middle, the scape nearly reaching the eyes, the funiculus

6-jointed, joint 2 a little shorter than 1, obconic, the club short and stout, globose-ovate; head small,

the eyes transverse, large; prothorax subquadrate, feebly sinuate at the base; scutellum very small,

transverse, hollowed in front; elytra oblong; pygidium exposed, transverse ; prosternum with the ante-

coxal portion convex and unimpressed, the short flattened basal process rounded posteriorly and feebly

sulcate down the middle; mesosternum depressed, connate with the metasternum, the epimera large and

angularly ascending; anterior coxw separated by considerably less than their own width; ventral

segments 2 and 5 equal in length, 1 and 2 connate; femora short, compressed, strongly clavate, unarmed ;

anterior tibie deeply excavate at the apex externally, the excavation limited by a sharp tooth; tarsi

rather slender, the claws free; body elongate, rather broad, flattened above.

Type, O. planirostris.

The Mexican insect forming the type of this genus is the first described Barid with

a 6-jointed funiculus, and it also has the mandibles, rostrum, &c. peculiarly formed.

The mandibular structure is suggestive of that of Plocamus. ‘There is an allied unnamed

form from Brazil, placed under the genus Cedetes, Schonh., in the British Museum *.

1. Odontobaris planirostris, sp.n. (Tab. XX. figg. 31, 31a, .)

Shining, black, the tip of the rostrum, antenna, knees, tibiz, and humeri more or less ferruginous; the upper

surface clothed with scattered, fine, hair-like, whitish scales, which are uniseriately arranged along each

elytral interstice, the vestiture of the under surface a little longer, coarser, and closer, the antennal

funiculus and club setose. Head finely punctate; rostrum nearly as long as the head and prothorax,

sparsely, finely punctate. Prothorax transverse, narrow and feebly constricted in front, the sides

rounded anteriorly and parallel behind; closely punctate. Elytra long, slightly wider than the prothorax,

very gradually narrowing from the obtuse humeri; sharply crenate-striate, the interstices rather broad,

flat, irregularly uniseriate-punctate. Pygidium densely punctate. Beneath coarsely and densely, the

abdomen more sparsely, punctate.

Length 54, breadth 23 millim. (2 ?)

Hab. Mexico, Cerro de Plumas + (fHége).

One specimen, perhaps slightly immature.

* This is a narrow, elongate, polished form, rufous in colour, with a black spot on each elytron towards

the apex.

+ The name of this locality, as given by the late F. Hoge, and quoted throughout this work, is probably a

mistake for ‘“‘ Cerro de Palmas,” in the State of Vera Cruz.

3 HH 2

420 RHYNCHOPHORA. '

STICTOBARIS.

Stictobaris, Casey, Ann. N. York Acad. Sci. vi. pp. 466, 516 (1892).

Casey refers three species, from Texas, Arizona, and New Mexico respectively, to

this genus, the type being Onychobaris cribrata, Lec., which extends into Mexico.

‘They are all oblong, depressed forms, with the rostrum in both sexes short, stout, and

abruptly arcuate, the prothorax strongly constricted in front and very coarsely punctate,

the elytra rather broad and parallel-sided, the prosternum feebly impressed, the anterior

cox separated by less than their own width, the tarsal claws divergent. |

1. Stictobaris cribrata. (Tab. XX. figg. 32, 32a, ¢.)

Onychobaris cribrata, Lec. Proc. Am. Phil. Soc. xv. p. 296°.

Stictobaris cribrata, Casey, Ann. N. York Acad. Sci. vi. pp. 516, 5177.

Hab. Nort America, Waco? in Texas!.—Mexico, Acapulco, Jalapa (Hodge),

Guanajuato (Sallé), Omilteme in Guerrero (H. H. Smith), Gonzales in Hidalgo

(Wickham).

The five specimens from Mexico agree so nearly with the above-quoted descriptions

that there can be little doubt that they belong to Leconte’s species, the types of which

were probably somewhat abraded. The Mexican insects are sparsely clothed with

long, yellowish-white, decumbent, setiform scales, those on the prothorax condensed

along the sides and middle, and those on the elytra into a spot on the shoulders, a

streak at the base of the third interstice, and a transverse patch on the disc beyond

the middle. The rostrum is short, stout, and closely punctate in both sexes, and the

first and second ventral segments are slightly depressed down the middle in the male.

S. pimalis, Casey (an example of which is before me), has the vestiture of the upper

surface very much sparser than in S&S. cribrata.

GYMNOBARIS, gen. nov.

Mandibles short, notched within, slightly decussate at the tip; rostrum curved, moderately long, separated

from the head by a deep transverse groove, the antenne inserted at or behind the middle, the antennal

club pubescent, stout, oblong-ovate, about as long as joints 2-7 of the funiculus; prothorax transverse,

constricted in front, bisinuate at the base, the median lobe slightly impinging on the scutellar cavity ;

scutellum strongly transverse, flattened ; elytra oblong, flattened, finely striate; pygidium fully exposed,

small in the 2, larger in the ¢; prosternum convex or flattened, neither suleate nor foveate behind the

transverse subapical groove, the basal process declivous laterally; mesosternum exposed, connate with

the metasternum, the intercexal portion on almost the same plane as the prosternum; anterior coxe

distant, separated by at least their own width; ventral segments 1 and 2 connate at the middle; femora

more or less clavate, not sulcate beneath (except at the knees), the anterior pair sometimes with a short

tooth ; tarsi rather slender, the claws free ; body elongate or oblong-ovate, flattened above, polished,

almost glabrous.

Type, G. brevidens.

This genus includes two species from Central America, and Baridius nigerrimus,

GYMNOBARIS. 421

Kirsch, from Bogota *, also belongs to it. They are all oblong, somewhat flattened,

polished, subglabrous forms, with widely separated anterior coxe, finely striate elytra,

a non-sulcate, convex or flattened prosternum (much as in Onychobaris), non-sulcate

femora, and an elongate antennal club. ‘The sternal structure approaches that of the

Madarides, but the mesosternum is in great part exposed.

1. Gymnobaris brevidens, sp. n. (Tab. XXI. figg. 1, la, ¢.)

Elongate, flattened above, very shining, black, the tarsi and the base of the antenne reddish or piceous ; the

punctures of the under surface and legs each bearing a very minute scale. Head minutely punctate ;

rostrum arcuate, moderately stout and about as long as the head and prothorax in the 9, a little shorter

and thicker in the g, sparsely, finely punctate, smoother in the 9, the antenne inserted at (2) or

beyond ( 3) the middle, the club long and stout. Prothorax subquadrate, constricted and much narrowed

in front; sparsely, minutely punctate. Scutellum almost smooth. Elytra long, but little wider than

the prothorax, very gradually narrowing from the rounded humeri; feebly striate, the striee 2-4 very faint

or obsolete and each represented by a row of fine punctures, the sutural stria somewhat deeply impressed

and conspicuously punctate from a little below the base to the apex, the interstices very broad, flat, and

with excessively minute widely scattered punctures. Beneath sparsely punctate. Prosternum somewhat

convex. Anterior femora deeply and abruptly excavate near the apex and armed with a short tooth.

Length 33-42, breadth 13-2 millim. (¢ 9.)

Hab. Nicaragua, Chontales (Janson: 3); Panama, Bugaba, Volcan de Chiriqui

(Champion: 3 @).

Four specimens. An elongate, flattened form, with a subquadrate prothorax and

faint or almost obsolete dorsal strize on the elytra, the sutural stria from a little below

the base conspicuously punctured and more deeply impressed than the adjacent strie.

The anterior femoral tooth (which is wanting in G. planipectus and G. nigerrimus) is

formed by the abrupt subapical excavation.

2. Gymnobaris planipectus, sp. n.

2. Oblong-ovate, flattened above, very shining, black, the punctures of the under surface and legs each

bearing an extremely minute scale. Head minutely punctate; rostrum as long as the head and

prothorax, moderately stout, finely punctate, the antenne inserted at the middle, the club long and stout.

Prothorax transverse, gradually and obliquely narrowing from the base, constricted in front; sparsely,

minutely punctate. Elytra oblong-subtriangular, very little wider than the prothorax; finely punctate-striate

throughout, the interstices flat, with excessively minute scattered punctures, which become uniseriately

arranged towards the sides. Prosternum broadly flattened, slightly depressed down the middle, but without

trace of a definite sulcus. Anterior coxe separated by more than their own width. Femora unarmed.

Length 3, breadth 12 millim.

Hab. Guatemata, Volcan de Atitlan 3000 feet (Champion).

One female, captured in Dec. 1880, in the vicinity of the coffee-plantations at San

Agustin. Smaller and less elongate than G. brevidens, the elytra distinctly punctate-

striate throughout, the anterior femora unarmed, the prosternum slightly depressed.

G. nigerrimus (Kirsch), from Bogota, has a narrower prothorax, longer and more

convex elytra, and less widely separated anterior coxe.

* This insect is compared by Kirsch with Limnobaris T-album (L.), notwithstanding that the latter has

the pygidium covered in both sexes.

422 RHYNCHOPHORA.

ONYCHOBARIS,

Onychobaris, Leconte, Proc. Am. Phil. Soc. xv. p. 294 (1876) (part.) ; Casey, Ann. N. York Acad.

Sci. vi. pp. 466, 521.

Twenty-two species * are referred to Onychobaris by Casey, who states that the focal-

centre of the genus is in the dry regions of Arizona and New Mexico. Of the four

southern forms included in it by Solari, O. dentibia and O. armipes are here placed

under Solaria (antea, p. 390), and O. nicaraguensis (which is nearly related to the

N.-American 0. ambigua, Casey) and O. punctatissima differ from all the described species

in having at least the anterior femora dentate, a character also shared by O. senecta.

The principal characters of Onychobaris are the more or less widely separated anterior

coxe, the very deeply sinuate base of the prothorax, the feeble prosternal depression,

the short, transverse scutellum, and the moderately long, stout, arcuate rostrum. One

at least of the N.-American representatives, 0. mystica, Casey, lives on cactus.

1. Onychobaris punctatissima, (Tab. XXI. fige. 2, 2a, 3.)

Onychobaris punctatissima, Solari, Ann. Mus. Genova, xlii. p. 420 (1906) *.

Hab. Mexico (Mus. Brit.; Flohr), “Sierra de Durango ”! (Hége, in coll. Solari),

Acapulco (Hége).

I have seen seven specimens of this insect, including the type. It has all the

femora dentate, the prothorax coarsely, closely punctate, except along the polished

median line, and the elytral interstices coarsely seriate-punctate. The first ventral

segment is sulcate in the male. Length 3-4, breadth 14-24, millim.

2. Onychobaris nicaraguensis.

Onychobaris nicaraguensis, Solari, Ann. Mus. Genova, xlii. p. 421 (1906) *.

Hab. Mexico, Ventanas in Durango (Ldge), Puente de Ixtla (Wickham), Temax in

N. Yucatan (Gaumer); Nicaragua, Managua (Solari !).

Sent us in numbers from Yucatan. Very like O. amdigua, Casey, from Arizona,

but with the elytral vestiture darker, finer, and less bristly. The unarmed intermediate

and posterior femora and the absence of the smooth median line on the prothorax

separate 0. nicaraguensis from O. punctatissima. The first ventral segment is hollowed

down the middle in the male.

3. Onychobaris senecta, sp. n.

Oblong, shining, varying in colour from seneous to black; somewhat thickly clothed with decumbent, pallid,

hair-like scales. Head closely punctate, smoother and transversely depressed between the eyes; rostrum

moderately stout, arcuate, about as long as the head and prothorax, closely punctate, in the @ a little

longer and more slender, the antenne inserted at (¢) or behind (@) the middle. Prothorax much

* Five only of these are known to me.

ONYCHOBARIS.—TREPOBARIS. 423

broader than long, rounded at the sides anteriorly, strongly constricted in front, deeply bisinuate at the

base ; closely, finely punctate, except along the smooth median line. Scutellum strongly transverse,

hollowed in the middle. Elytra a little wider than the prothorax, very gradually narrowed from the

somewhat swollen humeri, undulate on the disc; with narrow, feebly punctured striz, the interstices

broad, flat, very finely, irregularly punctate, becoming transversely strigose towards the sides. Beneath

densely, the abdomen more sparsely and finely, punctate ; first ventral segment hollowed down the

middle in the ¢. Prosternum flattened, transversely hollowed at the apex. Anterior coxe separated

by about twice their own width. Legs densely, rugosely punctate; anterior femora sharply dentate,

the others unarmed.

Length 22-44, breadth 13-2,1, millim. (d 9.)

Hab. Mexico (Truqui, in Mus. Brit.; coll. Solari), Guanajuato, Puebla (Sai/é),

Jalapa (Hége), Toluca (Wickham), Tlalpam (R. H. Hay, in U.S. Nat. Mus.).

This insect has long been known from Mexico, and does duty for Pseudobaris

senescens in the Sallé collection and for P. subscabrosa in the British Museum. It is

very different from any of the described species of Onychobaris known to me, but

possesses all the structural characters of the three other Central-American members

of the genus. The finely striate, comparatively smooth, undulate elytra, the abundant

vestiture, &c., readily distinguish O. senecta. The colour is as variable as in Pseudo-

baris acutipennis.

TREPOBARIS.

Trepobaris, Casey, Ann. N. York Acad. Sci. vil. pp. 466, 519 (1892).

The single N.-American species referred to this genus extends into Mexico, whence

three other forms are now added. They differ from Pseudobaris in their oblong or

subcylindrical form, and in having the prothorax feebly constricted in front and feebly

sinuate at the base (the median lobe being short and obtuse), and the elytra not or

very little wider than the prothorax. The subcylindrical form of body is still more

pronounced in 7. perlonga than in the type, T. elongata, Casey. The rostrum is stout,

arcuate, abruptly separated from the head, and bowed from the base. ‘The elytra, as

in Pseudobaris, sometimes have a small white spot at the base of the third interstice.

1. Trepobaris perlonga, sp.n. (Tab. XX. figg. 33, 334, 3.)

Elongate, subcylindrical, shining, black; glabrous above, the punctures on the under surface and legs each

pearing a minute white hair-like scale. Head finely punctate, transversely grooved between the eyes ;

rostrum abruptly bowed from the base, stout, a little longer than the prothorax, closely punctate,

smoother in the 9, the antenne inserted at (¢) or just behind (2) the middle, joint 1 of the

funiculus elongate, as long as 2-5 united. Prothorax subcylindrical, a little broader than long,

arcuately narrowed and feebly constricted in front, and feebly bisinuate at the base; coarsely, closely

punctate, and often with an incomplete smooth median line. LElytra elongate, not or very little wider

than the prothorax, with narrow feebly punctured strie, the interstices flat, rather coarsely and closely

uniseriate-punctate, 3 not dilated at the base, 9 raised posteriorly. Pygidium densely punctate, convex

in the g, smaller and flattened in the 9. Beneath densely, the abdomen more finely and sparsely,

punctate, the metasternum and first ventral segment excavate down the middle in the ¢. Prosternai

sulcus sharply defined, rather narrow. Femora obsoletely serrulate, without definite tooth. Anterior

tibiee with the apical uncus elongated in the ¢.

Length 375-43, breadth 1-14 millim. (dd Q.)

424 . RHYNCHOPHORA.

Hab. Mexico, Guanajuato (Sallé), Amula in Guerrero (H. H. Smith), Cuernavaca

in Morelos (Wickham ; Barrett, in U.S. Nat. Mus.).

Seventeen specimens, varying greatly in size. The elongate, subcylindrical shape,

the long basal joint of the funiculus, and the immaculate elytra readily distinguish

T. perlonga.

2. Trepobaris inornata, sp. n.

Elongate-ovate, narrow, shining, black ; glabrous above, the punctures on the under surface and legs each

bearing a minute hair-like white scale. Head and rostrum as in 7’. perlonga, the funiculus with joint 1

about as long as 2-4 united. Prothorax nearly as long as broad, convex, very gradually narrowing

from near the base, feebly constricted in front; coarsely, closely punctate. Elytra moderately long, very

gradually narrowing from the rounded humeri; sharply striate, the interstices flat, each with a regular

row of fine scattered punctures, 3 not dilated at the base, 9 raised posteriorly. Anterior femora with

a small tooth. First ventral segment slightly hollowed down the middle, and the anterior tibia with

the apical uncus elongated, in the ¢.

Length 3-4,4,, breadth 1;4,-1? millim. (¢ 9.)

Hab. Mexico, Chilpancingo and Tepetlapa in Guerrero (H. H. Smith), Matamoros

Izucar in Puebla (Hége), Puente de Ixtla ( Wickham).

Found in numbers at Chilpancingo and Puente de Ixtla. Less elongate and less

cylindrical than 7. perlonga, the basal joint of the funiculus relatively shorter, the

interstitial series of punctures in the elytra finer and more scattered.

3. Trepobaris elongata.

Trepobaris elongata, Casey, Ann. N. York Acad. Sci. vii. p. 519°.

Hab. Norra America, ‘Texas 1.—Mexico, Monterey in Nuevo Leon (Hoge).

One male, agreeing perfectly with a Texan specimen communicated by the

Smithsonian Institution, both insects having a few white scales at the base of the

third elytral interstice. Casey’s description was taken from a single male example.

The apical uncus of the anterior tibia is about equal in length in the two sexes,

4. Trepobaris yucatana, sp. n.

Oblong-ovate, rather narrow, shining, black; the elytra with a few small white scales at the base of the

third interstice, the punctures of the under surface and legs each bearing a minute hair-like whitish

scale. Head finely punctate, transversely grooved between the eyes ; rostrum abruptly bowed from the

base, moderately stout, a little longer than the prothorax, sparsely, finely punctate. Prothorax broader

than long, feebly constricted in front, the sides rounded anteriorly and subparallel behind ; closely,

moderately coarsely punctate, except along the smooth median line. Elytra slightly wider than the

prothorax, gradually narrowing from the rounded humeri; with deep, feebly punctured strie, the

interstices flat, regularly uniseriate-punctate, 3 slightly widened at the base. Pygidium closely punctate,

large and somewhat convex in the ¢, smaller and vertical in the 9. Beneath closely, the abdomen

more sparsely, punctate; ventral segment 1 shallowly suleate in the g. Prosternal sulcus narrow,

deep. Femora unarmed. Anterior tibie with the apical uncus elongated in the ¢.

Length 33-4, breadth 12-1,% millim. (¢ 9.)

Hab. Mexico, ‘Temax in N. Yucatan (Gaumer),

TREPOBARIS.—PSEUDOBARIS. 425

Fourteen specimens, mostly in a bad state of preservation. Smaller, narrower, and

more shining than 7’. elongata; the prothorax a little more coarsely and not so densely

punctate; the seriate punctures in the elytra finer and more scattered; the apical

uncus of the anterior tibie elongated in the male. The basally widened third elytral

interstice separates T. yucatana from T. inornata.

PSEUDOBARIS.

Heterosternus, Kirsch, Berl. ent. Zeitschr. 1869, p. 215 (nec Dupont).

Pseudobaris, Leconte, Proc. Am. Phil. Soc. xv. p. 297 (1876) ; Casey, Ann. N. York Acad. Sci.

vi. pp. 466, 552.

This genus is the most numerous in species amongst the Central-A merican

“ Baridiides vrais.” It is mainly recognizable by the more or less deeply sulcate

prosternum (the sulcus, however, is scarcely wide enough to receive the rostrum

in repose); the antennal club is pubescent throughout ; the femora are usually sulcate

beneath, and sometimes dentate; and the rostrum is moderately elongate, at least in

the female. Many of the typical forms have the elytral interstices sharply costate on

the apical declivity, and the third with a patch of white scales at the base * ; others,

again, have some additional white markings on the disc or base of the elytra, or their

apices subdentate. The type of Heterosternus (H. carbo, Kirsch) and three of the

Central-American species have the prosternal sulcus bifurcate between the cox, due

to the angular or lanciform extension forwards of the basal process of the prosternum ;

but they are otherwise so closely related to the typical N.-American Pseudobaris that

it is inadvisable to separate them. ‘There is a considerable sexual difference im the

form of the rostrum in certain cases, it being often abruptly flattened, smoother, and

more slender in the females than in the males. P. lucida has the pygidium of the

female almost covered by the elytra, though large and prominent in the male.

P. carinipectus has the prosternal sulcus closed in behind by a v-shaped ridge.

The following table will assist in the identification of the Central-American forms :—

A. Prosternal sulcus straight, sometimes extending beyond the coxe.

[Pszvposanis, Lec. }

a. Pygidium prominent in both sexes, large in @, transverse in ?.

a. Basal process of the prosternum longitudinally raised or margined on

each side behind the coxe; femora unarmed; elytra with spots or

lines of white scales at the base and middle, those at the base mainly

condeused on the interstices 2 and 6.

a?, Elytra with a submedian spot on the 4th interstice, and another at

the base of the 2ndand 6th ... . . . ... + + + + + + Species 1-3. |

* These scales are often partially abraded, but the additional squamigerous punctures remain to indicate

their position ; the interstice itself, too, is often widened at this place.

+ The S.-American Baridius punceticollis, Boh., and B. subceneus, Kirsch, also belong here, and B. corvinus,

Kirsch, to Pseudobaris, 8. str.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. 3 II

426 RHYNCHOPHORA.

6”, Elytra with a sharply-defined transverse submedian fascia and a spot

at the base of the 2nd and 6th interstices; ventral surface densely

and coarsely albo-squamose . . . ~ oe ew ee ew eh) «Species 4.

*, Elytra with short streaks at the base and across the middle, and some-

times a line along the suture ; ventral surface sparsely albo-squamose.

a’. Mesosternum not hollowed between the coxe . . . . . . . Species 5-8.

b°. Mesosternum hollowed between thecoxe. . . . . . ~~ ~ Species 9.

b‘. Basal process of the prosternum not or feebly margined at the sides

(except in P. nevius), usually flattened ; elytra with or without a white

spot at the base of the 8rd interstice (in P. octonotata with an

additional spot at the base of the interstices 4-6).

d*, Elytra without angular prominences at the apex.

c’. Anterior femora bi-, the others uni-dentate.

a‘. Rostrum sharply carinate beneath; elytra with some squami-

gerous punctures at the base of the 3rd interstice, undulate,

completely striate . . . 1. 2. 1 1 ee ee ee ~~ 6<Species 10.

b*. Rostrum not sharply carinate beneath; elytra bare, flattened,

incompletely striate at the base. . . . . . . + « « ~ Species 11. -

d’, Anterior femora, and sometimes the others also, with an angular

prominence or tooth* (the anterior pair serrulate in P. carini-

pectus).

c‘, Elytra with three or four spots at the base . .

d‘. Elytra with a spot or a few scales at the base of the rd inter-

stice, which is usually widened in front.

a’. Prosternal sulcus closed behind by a v-shaped ridge ; elytra

6°. Prosternal sulcus open behind.

a’, Elytra also with scattered fascicles of setiform white

o Elytra also with conspicuous scattered white sete. . . . Species 16-18.

*, Elytra without white sete.

Species 12.

7 Elytra incompletely striate near the suture at the base . Species 19.

6", Elytra completely striate.

a®. Interstices very finely punctured. . . . . . ~ ~ Species 20.

b°. Interstices coarsely punctured . . . . . . « ~ Species 21.

e’. Elytra bare, the 3rd interstice not widened infront . . . . Species 22, 23.

e’. Anterior femora, and the others also, unarmed.

f'. Elytra with a spot or a few scales at the base of the 3rd interstice

(abraded in P. lucens), which is usually more or less widened

in front.

c’, Elytra also with conspicuous scattered white sete . . . - Species 24, 25

d’, Elytra also with inconspicuous whitish setee (often abraded) . Species 26.

* This character is perhaps not altogether reliable, as some of the species placed under ¢* have

indications of a small tooth.

PSEUDOBARIS. 427

e’. Elytra without sete. .

d®. Body elongate 2. 2. 1. 1 1 ew ew ee ee es Species 27.

e°. Body oblong-ovate. . 2 1 6 ee ee ee + e+ Species 28-33.

g'. Elytra bare, the 3rd interstice not widened at the base. . . . Species 34-39.

e*. Elytra each with a dentiform or angular prominence at the apex.

f°. Anterior femora finely denticulate ; elytra with a white spot at the

_base of the 8rd interstice . 2. 2 6 ee 6 8 8 ee ee Species 40.

g. Anterior femora unarmed.

h‘. Elytra with a white spot at the base of the 3rd interstice. . . Species 41-44.

i. Elytrabare . 2 2. ee ee eee Species 45-47.

b. Pygidium almost covered by the elytra in the 2, large and prominent in

the g ; body brilliantly metallic eneous . . . / 6 7 ee ee Species 48.

B. Prosternal sulcus divided between the coxe by an angular or lanciform

projection of the flattened or shallowly sulcate basal process ; elytra bare.

[Hererosrernvs, Kirsch. ]

c. Elytra without angular prominences at the apex . 2 - ee e+ ee Species 49, 50.

d. Elytra each with an angular prominence at the apex. . - - + + + Species 51.

1. Pseudobaris biguttata, sp.n. (Tab. XXI. figg. 3, 3a, b, 3.)

Oblong-ovate, rather broad, very shining, black; the elytra with a small, sharply-defined, oval or rounded

patch of narrow white scales ou the 4th interstice at a little beyond the middle, an inconspicuous patch

at the base of the 2nd and 6th, and sometimes another on the 6th in a line with the larger one on the

4th; the punctures of the under surface and legs each bearing a small hair-like white scale. Head

sparsely punctate, transversely depressed between the eyes; rostrum abruptly bowed from the base, a

little longer than the prothorax, stout, flattened at the tip, sparsely punctate and longitudinally strigose

in the ¢, smoother in the @, the antenne inserted at about the middle in both sexes, the outer joints

of the funiculus strongly transverse, the club short-ovate, stout, pointed at the tip. Prothorax transverse,

obliquely narrowing from the base, and strongly constricted in front ; the surface with minute, widely

scattered punctures, which become more distinct towards the sides and along the basal margin.

Elytra moderately long, gradually narrowing from the oblique humeri, transversely flattened or depressed

below the base; faintly punctate-striate, the strie becoming deeply impressed towards the sides and

apex, the 4th sinuous exterior to the white spot, the interstices broad, flat, each with a row of excessively

minute punctures, and some additional impressions on the squamose spaces. Beneath coarsely, the

middle of the metasternum and the abdomen very sparsely and finely, punctate; first ventral segment

flattened down the middle in the g. Prosternum deeply sulcate, the basal process broad, tumid on

each side, margined laterally, and deeply arcuate-emarginate behind (fig. 3 6). Anterior coxee separated

by a little less than their own width. Femora unarmed.

Length 6-63, breadth 3-3} millim. (d 9.)

Hab. Mexico (Mus. Brit.; Mus. Dresden; Hoge, in coll. Solari), Toxpam, Playa

Vicente, and San Andres Tuxtla, all in Vera Cruz (Sallé); Panama, Volcan de Chiriqui

4000 feet (Champion).

Seven examples, the one from Chiriqui having the single larger spot only on the

elytra (which is placed in exactly the same position as in Centrinus dispilus, Schénh.)

and the prothorax more rapidly narrowed from the base. The deeply emarginate

basal process of the prosternum is characteristic of this species

3112

428 RHYNCHOPHORA.

2. Pseudobaris disparilis, sp. n. (Tab. XXI. figg. 4, 44, 2.)

Oblong-ovate, very shining, black ; the elytra with a small, oblong patch of narrow white scales on the 4th

interstice at a little beyond the middle and sometimes a few white scales at the base of the 2nd, the

punctures of the legs and under surface each bearing a minute hair-like white scale. Head finely

punctate, the frons depressed or with a shallow longitudinal groove; rostrum (¢) arcuate, moderately

stout, about as long as the head and prothorax, finely punctate, (2 ) smoother, more slender, and greatly

elongated, reaching the middle of the metasternum, the antenne inserted at about the basal third in the

@ and towards the middle in-the ¢., the funiculus rather slender, the club ovate. Prothorax subconical,

constricted in front; very sparsely, finely punctate. Elytra transversely flattened or depressed at and

below the base, with feebly punctured, sharp, narrow striz, the interstices broad, almost smooth and

flat, the 2nd slightly widened at the base. Beneath coarsely, the abdomen very sparsely and finely,

punctate. Prosternum deeply sulcate, tha basal process margined laterally and truncate or feebly

emarginate behind. Anterior coxe separated by considerably less than their own width. Femora

unarmed. .

Length 53-6, breadth 22-3 millim. (¢ 2.)

Hab. Mexico, Toxpam and Playa Vicente in Vera Cruz (Sal/é).

‘Two males and three females, the sexes labelled as distinct species in the Sallé

collection. Smaller than P. diguttata, the elytra sharply striate throughout, the pro-

sternal process less developed and truncate or feebly emarginate behind, the funiculus

not so stout, the antennal club ovate, the rostrum greatly elongated in the female.

8. Pseudobaris sexguttata, sp.n. (Tab. XXI. fige. 5,5, 2.)

Subovate, very shining, black ; the elytra each with three small dense patches of narrow white scales—one

at the base of the 2nd interstice, another at the base of the 6th, and one on the 4th at a little beyond

the middle,—and sometimes two or three similar scales on the 6th in a line with those on the 4th; the

punctures on the under surface and legs each bearing a white scale, those on the sternal side-pieces oval

in shape. Head closely punctate, transversely depressed between the eyes; rostrum strongly arcuate,

stout, nearly as long as the head and prothorax, closely punctate, smoother at the tip in the 9. Pro-

thorax transverse, rapidly narrowed from the base, strongly constricted in front; sparsely, coarsely

punctate, the disc sometimes with a few widely scattered minute punctures only. Elytra rounded-

triangular, depressed along the suture, with sharply cut, feebly punctured striae, the interstices broad,

flat, and almost smooth (except upon the squamose spots). Beneath very coarsely, the abdomen finely,

punctate. Prosternum deeply sulcate, the basal process with a very prorainent, cariniform ridge on

each side, hollowed within, and slightly emarginate behind. Anterior cox separated by considerably

less than their own width. Legs short; femora unarmed.

Length 22—4, breadth 1j-2,1, millim. (¢ 2.)

Hab. Mexico, Santa Lucrecia in Vera Cruz (Knadb, in U.S. Nat. Mus.), Jalapa

(Smith, ex Wickham); GuateMALA, Cahabon, Cerro Zunil (Champion); Nicaragua,

Ometepe 4000 feet (Shimek, ex Wickham), Chontales (Janson), Managua (Solari) ;

Panama, Volcan de Chiriqui, Bugaba (Champion).

Kleven specimens, varying greatly in size, and in the puncturing of the prothorax,

the disc (except along the basal margin) being sometimes almost smooth. P. ser-

guttata is readily distinguished by the three sharply-defined white spots on each

elytron and its subovate shape. The coarse punctures on the under surface each bear

a rather large oblong white scale. The rostrum is of about the same length in the

two sexes.

PSEUDOBARIS. 429

4, Pseudobaris niveoguttata, sp. n. (Tab. XXI. figg. 6,64, 2.)

2. Oblong-elliptic, narrow, very shining, black; the prothorax with a sinuous stripe on each side extending

down the anterior part of the flanks, and the elytra with several spots at the base (that on the 2nd and

6th interstices larger than the others) and a transverse fascia at a little beyond the middle of the disc,

thickly clothed with rather large, oblong, white scales ; the under surface (a large space on the propleura

and the sides of the ventral segments 1 and 2 excepted) densely and coarsely albo-squamose, the legs

with narrower white scales. Head closely, finely punctate, transversely grooved and feebly foveate

between the eyes; rostrum moderately curved, rather slender, a little longer than the head and pro-

thorax, finely punctate at the base, the antenne inserted behind the middle. Prothorax transverse,

narrowing from the base, constricted in front; somewhat coarsely punctate at the sides, apex, and along

the basal margin, almost smooth on the disc. Elytra scarcely wider than the prothorax, oblong,

compressed at the sides below the humeri, depressed along the suture ; with sharply cut, feebly punctured

strise, the interstices almost smooth (except upon the squamose spaces), flat. Pygidium vertical, rather

large. Beneath closely, the bare spaces at the sides of the ventral segments 1 and 2 sparsely, punctate.

Prosternal sulcus deep, squamose, the basal process broad, slightly raised on each side. Anterior coxe

separated by a little more than half their own width. Femora unarmed.

Length 32-4,1,, breadth 14-13 millim.

10?

Hab. Mexico, Jalapa (Hodge).

‘wo females. An oblong form, with sharply-defined patches of rather coarse,

imbricate, white scales on the elytra, the elytra themselves compressed at the sides

anteriorly and scarcely wider than the prothorax, the rostrum (2) long and slender

(as in P. disparilis, 2 ), the under surface in great part densely albo-squamose.

5. Pseudobaris sinuosa, sp.n. (Tab. XXI. figg. 7, 7a, 3.)

3. Oblong-ovate, robust, very shining, black; the elytra with a common, subtriangular scutellar patch, a

small patch at the base of the 5th interstice, and an interrupted, transverse, post-median fascia clothed

with scattered narrow white scales ; the punctures of the under surface and legs each bearing a hair-like

white scale. Head closely punctate, transversely depressed and foveate between the eyes; rostrum

strongly arcuate, very stout, about as long as the head and prothorax, strigose and closely punctate,

smooth along the middle, the antennz inserted midway, stout, the club ovate. Prothorax rather convex,

transverse, conical, strongly constricted in front; with a few minute widely scattered punctures on-the

disc, these becoming coarser towards the sides. Elytra oblong-subtriangular, undulate, with feebly

punctured narrow striz, the striz sinuous on the disc and deeply impressed at the apex, the first not

reaching the base, the interstices almost smooth (except on the squamose spaces), flat, convex towards

the tip. Pygidium broad, somewhat convex. Beneath coarsely, the abdomen sparsely and finely,

punctate. Prosternum deeply sulcate, the basal process short, almost smooth, transversely hollowed,

margined at the sides, and feebly emarginate behind, Femora unarmed. Anterior tibiz with a stout

apical uncus.

Length 52, breadth 23 millim.

Hab. Mexico, Cordova (fHége).

One male. Distinguishable by the very stout rostrum and the undulate elytra, the

latter with sinuous dorsal striz and the white scales condensed into a subtriangular

scutellar patch and an interrupted transverse post-median fascia.

6. Pseudobaris irregularis, sp.n. (Tab. XXI. figg. 8, 8a, ?.)

Oblong-ovate, somewhat flattened above, very shining, black, the antenne and tarsi obscure ferruginous ; the

sides of the prothorax, the elytra, under surface, and legs very sparsely clothed with small, hair-like,

450 RHYNCHOPHORA.

white scales, those on the elytra condensed into fascicles and interrupted lines, which are widened on the

interstices 2, 4, and 6, and conspicuous at the base and across the middle. Head closely punctate,

depressed between the eyes; rostrum abruptly bowed from the base, stout, about as long as the head and

prothorax, slightly dilated at the apex, strigoso-punctate, a little longer and smoother in the Q, the

antennex inserted just behind the middle in both sexes, the antennal club ovate. Prothorax transverse,

narrowing from the base, strongly constricted in front; somewhat coarsely punctured at the apex,

along the basal margin, and at the sides, almost smooth on the dise. Elytra oblong, very gradually

narrowing from the base, more or less undulate on the disc; finely punctate-striate, the striz deeply

impressed at the apex, the interstices broad, flat, and almost smooth (except on the squamose spaces),

punctate. Beneath very coarsely, the abdomen sparsely and finely, punctate. Prosternum somewhat

deeply sulcate, the basal process broad, closely punctured, flat, margined laterally, and subtruncate

behind. Anterior coxse separated by about their own width. Femora unarmed.

Length 43-53, breadth 2;4,-24 millim. (¢ 9.)

Hab. Mexico (Sallé), Paso del Macho (Hége).

One male and two females, doubtless all from the State of Vera Cruz. Less robust

and more depressed than P. sinuosa, the rostrum not so stout, the prothorax with a

row of rather coarse punctures along the basal margin, the sparse white vestiture of

the elytra arranged in longitudinal streaks, the laterally margined basal process of

the prosternum flattened and closely punctate.

7. Pseudobaris suturalis, sp. n.

Oblong, robust, shining, black, the antennz obscure ferruginous ; the elytra with the suture to near the tip,

a small oblong patch at the base of the interstices 2 and 6, and an irregular transverse submedian fascia,

clothed with rather coarse, setiform, white scales, the sides of the prothorax, the under surface, and legs

also clothed with small narrow white scales. Head closely punctate, transversely grooved between the

eyes; rostrum moderately stout, arcuate, not longer than the prothorax, closely punctate. Prothorax

transverse, gradually, arcuately narrowing from near the base, strongly constricted in front; closely

punctate, except along the median line. Elytra rather elongate, very gradually narrowing from the base,

depressed along the suture, the disc also transversely hollowed beyond the middle; deeply sulcate, the

sulci feebly punctate, the interstices flat, finely and irregularly uniseriate-punctate. Beneath closely

punctate. Prosternum deeply sulcate, the basal process raised on each side and emarginate behind.

Legs stout ; femora unarmed.

Length 5, breadth 23 millim. (9 ?)

Hab, Mexico, Cuernavaca in Morelos (Wickham).

One specimen, captured during Mr. Wickham’s recent trip to Western Mexico. A

rather large, oblong, robust form nearly related to P. sublineata, with the elytra con-

spicuously bordered with white scales along the suture and the striz broader and

deeper, the ventral surface closely punctate, &c.

8. Pseudobaris sublineata, sp. n.

¢d. Oblong-ovate, very shining, black, the antenne and tarsi fusco-ferruginous ; the elytra with scattered

uniseriately arranged setiform white scales at the base, middle, and apex, the interstices 1 and 2 each

with a few additional scales in front ; the punctures on the sides of the prothorax, under surface, and legs

each bearing a small white scale. Head closely punctate, transversely grooved between the eyes ;

rostrum stout, arcuate, about as long as the prothorax, finely punctate. Prothorax transverse, narrowing

PSEU DOBARIS. 431

from the base, strongly constricted in front; sparsely punctate, the punctures becoming finer on the

middle of the disc. LElytra oblong-subtriangular, depressed along the suture, with feebly punctured,

deep strie, the interstices flat, finely uniseriate-punctate, 2 and 3 with several additional punctures at

the base. Pygidium large, closely punctate. Beneath closely punctate, the first ventral segment with

a smooth flattened space in the middle. Prosternum deeply sulcate, the flattened basal process sharply

margined laterally and the ridges produced into a dentiform prominence on each side behind, Femora

unarmed, the anterior pair clavate, the others sulcate. Anterior tibia with a long apical uncus.

Length 34-34, breadth 13-1? millim.

Lab. Mexico, Playa Vicente (Sadlé), Atoyac (H. Ll. Smith).

Two males, both from the State of Vera Cruz. In this insect the scattered

white setiform scales on the elytra tend to form a faint interrupted basal and median

fascia, and there are a few additional scales at the base of the first and second

interstices. P. irregularis and P. sinuosa are somewhat closely allied to the present

species.

9. Pseudobaris fraterculus, sp. n.

3. Oblong-ovate, narrow, rather convex, shining, nigro-piceous, the antenne and tarsi obscure ferruginous ;

the elytra with a short streak of hair-like white scales at the base of the interstices 2 and 6, and

a shorter or longer streak on 2-6 at a little beyond the middle (the one on 2 elongate); the punctures

of the under surface and legs each bearing a small, hair-like, white scale. Head closely punctate,

transversely grooved between the eyes ; rostrum abruptly bowed from the base, stout, closely punctate,

the antennal club large. Prothorax transverse, constricted in front, the sides parallel at the base ;

closely, coarsely punctate, except along the narrow abbreviated smooth median space. Elytra slightly

depressed along the suture, sharply punctate-striate, the interstices flat and feebly uniseriate-punctate.

Pygidium transverse, rather small. Beneath coarsely, the abdomen finely, punctate, the first ventral

segment hollowed down the middle. Prosternal sulcus broad, extending to the base, the basal process

raised on each side behind the cox, the lateral ridges becoming dentiform posteriorly. Mesosternum

depressed between the middle coxe. Femora unarmed.

Length 3, breadth 1} millim.

Hab. Mexico, Atoyac in Vera Cruz (7. H. Smith).

One male. Smaller and narrower than P. sudlineata, the rostrum more abruptly

bowed from the base, the prothorax coarsely punctate throughout and parallel at the

sides behind, the scales on the elytra much smaller, the prosternum sulcate to the base,

the intercoxal portion of the mesosternum depressed for the reception of the tip of the

rostrum, the first ventral segment ( ¢ ) shallowly sulcate.

10. Pseudobaris costirostris, sp. n. (Tab. XXI. figg. 9, 9a, ¢.)

3. Oblong-ovate, very shining, black, glabrous above (?slightly abraded), the punctures of the under surface

and legs each bearing a minute white scale. Head closely, finely punctate, transversely hollowed and

almost smooth between the eyes ; rostrum abruptly separated from the head, very stout, about as long

as the head and prothorax, with an exceedingly prominent carina extending down the middle beneath,

finely punctate and longitudinally strigose above. Prothorax convex, a little broader than long,

narrowing from the base, constricted in front; sparsely, finely punctate, smooth along the median line.

Scutellum strongly transverse, concave. Elytra undulate, finely punctate-striate, the interstices broad,

flat, narrowly costate on the apical declivity, each with a row of excessively minute punctures, the third

with several additional impressions at the base. Beneath very coarsely, the abdomen sparsely and finely,

432 RHYNCHOPHORA.

punctate. Prosternum with the median sulcus extending to the apex, deep, sharply margined, the

margin abruptly angulate behind the coxe, the hollowed basal process short, truncate behind. Anterior

femora with two teeth (one on each edge of the sulcus), the others with one tooth only.

Length 43, breadth 254, millim.

Hab. GuatemaLa, Las Mercedes 3000 feet (Champion).

One male. Not unlike the common P. undulata, but easily recognizable by the

longer prosternal sulcus, the sharp carina on the lower face of the rostrum (an unusual

character among the Barids), the dentate femora, &c. The inferiorly carinate rostrum

(fig. 9 a), the longer sulcus and less developed basal process of the prosternum, &c.,

separate P. costirostris from P. oscillans. The small punctures at the base of the third

elytral interstice doubtless bear scales when the insect is in fresh condition.

11. Pseudobaris oscillans, sp. n. (Tab. XXI. figg. 10, 10a, 2, 3.)

Oblong-ovate, very shining, black, glabrous above, the punctures of the under surface and legs each bearing a

minute white scale. Head finely punctate, transversely depressed between the eyes ; rostrum ( ¢) stout,

about as long as the head and prothorax, finely punctate, (2) longer, more strongly arcuate, and much

smoother, the antenne inserted at (¢) or behind (@) the middle. Prothorax slightly broader than

long, conical, feebly constricted in front; very sparsely, minutely punctate, smooth along the median

line. Elytra transversely depressed before and behind the humeri, the basal margin prominent ; with

fine, faintly punctured strie, the first almost or guite obsolete at the base and there represented by a line

of minute punctures, the interstices broad, flat, narrowly costate on the apical declivity, each with a row

of extremely minute scattered punctures. Beneath very coarsely, the abdomen sparsely and finely,

punctate. Prosternum with the median sulcus deep, parallel-sided, and abruptly terminating between

the coxe, the basal process flat and subtruncate. Legs rather slender; anterior femora bi-, the others

uni-dentate.

Length 4-451, breadth 12-2 millim. (¢ 2.)

Hab. Panama, Volcan de Chiriqui 5000 feet (Champion).

One pair. Very like Madarus astutus, but smaller, the rostrum of the female

stouter, cylindrical, and not abruptly gibbous at the base, the femora sharply dentate,

the apical interstices of the elytra costate, the basal process of the prosternum less

developed, &c. Both insects have a prominent basal margin to the elytra. ‘The femora

in the present species are sharply dentate, the two teeth on the anterior pair (fig. 10 0)

being placed opposite one another, one on each edge of the sulcus.

12. Pseudobaris octonotata, sp.n. (Tab. XXI. figg. 11, lla, 9.)

Oblong-ovate, shining, black; the elytra each with four dense albo-squamose spots at the base, the one on

the 3rd interstice larger and more elongate than those exterior to it; the punctures on the under surface

and legs each bearing a hair-like white scale. Head finely punctate, transversely depressed between the

eyes; rostrum arcuate, stout, nearly as long as the head and prothorax, closely punctate, in the @

smoother, longer, and more slender, the antenne inserted at about the middle. Prothorax transverse,

rather convex, rounded at the sides anteriorly, constricted in front; closely, coarsely punctate. Elytra

rounded-triangular, with sharply cut, narrow, feebly punctured strive; the interstices broad, fiat,

narrowly costate at the apex, each with a row of fine, shallow, transverse punctures, 3 widened at the

base. Beneath closely punctate, Prosternal sulcus straight, shallow, broad. Anterior and intermediate

femora with a short tooth,

Vength 23-34, breadth 11-13 millim. (¢ 2.)

PSEUDOBARIS. 453

Hab. Mexico, Motzorongo in Vera Cruz (Osborn, in U.S. Nat. Mus.: 2); PANAMA,

San Feliz in Chiriqui (Champion: ¢ ).

‘Three specimens, the female (fig. 11) with larger white patches at the base of the

elytral interstices 3-6, the one on 3 being more extended than the rest in all of them.

This insect resembles P. binotata, but the elytral interstices are more finely punctate,

the scattered white sete are wanting, the anterior femora are distinctly dentate, and

the rostrum of the female is more elongate.

13. Pseudobaris carinipectus, sp.n. (Tab. XXI. figg. 12, 12a, b, ¢.)

Oblong, very shining, black; the elytral interstices clothed with long, coarse, scattered, seriately-arranged,

decumbent, white seta, the third also with a dense oblong patch of hair-like white scales at the base ;

the punctures on the under surface and legs each bearing a small white scale. Head closely punctate,

transversely grooved between the eyes; rostrum arcuate, very stout, not longer than the head and

prothorax, densely punctate, flattened at the tip in the 2, the antenne inserted at about the middle.

Prothorax much broader than long, transversely convex, strongly constricted in front, deeply bisinuate

at the base, the sides rounded anteriorly and parallel behind; closely, moderately coarsely punctate,

except along the smooth median line. Elytra oblong, gradually narrowing from the base, feebly

transversely depressed on the disc before and beyond the middle; narrowly punctate-striate, the

interstices broad, finely and irregularly uniseriate-punctate, flat to near the tip, 38 widened at the base,

9 raised at the apex. Pygidium large, densely punctate, somewhat tumid in the d, flattened and

vertical in the 9. Beneath closely punctate; first ventral segment slightly hollowed down the middle

inthe ¢. Prosternal sulcus rather broad, deep, parallel-sided, limited behind the coxe by a prominent

v-shaped ridge (fig. 126). Anterior femora distinctly serrate, the others with an almost obsolete tooth.

Anterior tibi with a short tooth at the inner apical angle, in addition to the usual uncus,

Length 4-54, breadth 2-22 millim. (¢ Q.)

Hab. Mexico, Cuernavaca (Sallé) ; Guatemaa, Duefias (Champion).

Found in numbers at Duefias. More oblong than P. undulata; the elytral interstices

not sharply carinate at the apex, more finely punctate, and sparsely albo-setose; the

prosternal sulcus margined posteriorly and receiving the antennal club in repose.

This lastementioned character is suggestive of Aulodaris, but the antenne have a short

second joint to the funiculus as in Pseudodbaris.

14. Pseudobaris fasciculata, sp.n. (Tab. XXI. figg. 13, 13 a, 6, 3.)

Oblong-ovate, moderately convex, rather broad, shining, black; the elytra with small scattered fascicles of

rather coarse, white, setiform scales (fig. 13 b) on the interstices 3, 5, 7, and 9, and a larger spot at the

base of 3, as well as seriately-arranged smaller setiform scales on the rest of their surface ; the sides of the

prothorax, the under surface, and legs sparsely clothed with small hair-like white scales. Head closely

punctate, transversely grooved between the comparatively small eyes ; rostrum stout, arcuate and shorter

than the prothorax in the ¢, abruptly bowed and slightly longer in the @, closely, somewhat coarsely

punctate, the antenn inserted at about the middle, joint 2 of the funiculus very little longer than 3.

Prothorax transverse, moderately convex, strongly constricted in front, rounded at the sides anteriorly ;

closely, coarsely punctate, except along the smooth median line. Elytra with sharply-cut, feebly-

punctured stria, the interstices flat, broad, and closely, irregularly biseriate-punctate on the disc,

narrower and coarsely uniseriate-punctate towards the sides. Py gidium vertical, densely punctate.

Beneath closely punctate ; first ventral segment slightly hollowed along the middle in the g. Prosternal

sulcus rather shallow. Femora obsoletely dentate.

Length 4-44, breadth 2-2, millm. (¢ 2.)

Hab. Mexico, Toxpam and Juquila (Sai/é) ; Guatemaa, Capetillo (Champion).

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, February 1909. 3KK

434 RHYNCHOPHORA.

Three specimens. Easily known by the short rostrum and the fasciculate arrange-

ment of the elytral vestiture. P. fasciculata is perhaps nearest related to P. senescens,

but it has the scales on the elytra clustered into small spots as in P. multiquttata.

15. Pseudobaris multiguttata, sp.n. (Tab. XXI. figg. 14, 144, ¢.)

$. Oblong, flattened above, moderately shining, black ; the elytra with small scattered fascicles of yellowish-

white setiform scales on the interstices 3, 5,7, and 9, and a large oval ochreous spot at the base of 3, as

well as seriately-arranged minute pallid scales on the rest of their surface ; the sides of the prothorax,

the under surface, and legs sparsely clothed with fine, hair-like, whitish scules. Head closely punctate,

flattened between the eyes; rostrum arcuate, moderately stout, about as long as the prothorax, closely,

finely punctate, the antenne inserted just beyond the middle. Prothorax transverse, subquadrate,

constricted in front, rounded at the sides anteriorly ; densely and somewhat finely punctate, except along

the smooth median line. Elytra oblong, with feebly punctured striw, the interstices flat, densely

punctate, 3 much widened at the base. Pygidium broad, densely punctate. Beneath closely punctate :

ventral segments 1 and 2 excavate down the middle. LTrosternal sulcus shallow. Femora clavate, the

anterior pair obsoletely dentate.

Length 4, breadth 14 millim.

flab. Mexico, Ciudad in Durango 8100 feet, Ventanas (Forrer).

Two males, the one from Ventanas abraded. Differs from PP. fasciculata in its

oblong shape, duller surface, densely and less coarsely punctured prothorax, more

finely and closely punctured elytral interstices (the third with a large ochreous spot at

the base), longer and smoother rostrum, and deeply excavate first ventral segment in

the male.

16. Pseudobaris leucostigma, sp.n. (Tab. XXI. figg. 15, 15a, 3.)

Oblong-ovate, very shining, black, sometimes with a brassy lustre; the elytra with a rather large, dense, oval

patch of white scales at the base of the third interstice and various coarse, narrow, elongate-oval, white

scales along the alternate interstices 3, 5, 7, and 9; the punctures at the sides of the prothorax and on

the underside and legs each bearing a hair-like white scale. Head closely, minutely punctate, trans-

versely grooved between the eyes ; rostrum moderately stout, curved, slightly longer than the prothorax,

closely punctate, smoother and flattened at the tip in the 9, the antennw inserted near the middle.

Prothorax transverse, rather convex, constricted and much narrowed in front, the sides rounded anteriorly

and subparallel behind; very sparsely, finely punctate on the disc, the punctuation becoming coarser and

more crowded towards the sides. Elytra with feebly punctured fine strie, the interstices broad, flat,

and each with a scattered irregular row of very minute punctures, 3 considerably widened at the base.

Beneath closely punctate; first ventral segment slightly depressed along the middle in the ¢.

Prosternum with a deep straight sulcus, Anterior and intermediate femora obsoletely dentate.

Length 23-3, breadth 1,,-14 millim. (¢ 9.)

Hab. Mexico (coll. Solari), Toxpam (Sallé), Cordova (Sallé, Hige), Julapa (Hoge);

GuaTEMALA, Lanquin, Chiacam, Senahu, Capetillo, Guatemala city (Champion) ;

Honpuras (Sal/é).

Fourteen examples. Larger and much smoother than P. cylindricollis, the finer

vestiture on the elytra wanting, the basal spot larger, the long scattered scales on the

alternate interstices broader, the disc of the prothorax very sparsely, finely punctate,

the punctures on the elytral interstices minute and widely separated.

PSEUDOBARIS. 435

17. Pseudobaris cylindricollis, sp.n. (Tab. XXI. figg. 16, 16a, ¢.)

Oblong-ovate, shining, black; the sides of the prothorax, the elytra, under surface, and legs sparsely clothed

with very fine, hair-like, white scales, the elytra with a dense oblong patch of coarser scales at the base

of the third interstice and various scattered long white decumbent set, these latter placed on the

interstices 3, 5, 7, and 9 and intermixed with the uniseriately-arranged finer vestiture. Head closely,

finely punctate, transversely depressed between the eyes; rostrum stout, strongly arcuate, about as long

as the prothorax, closely punctate, the antennae inserted at the middle in both sexes. Prothorax

transverse, rather convex, subcylindrical, abruptly and arcuately narrowed in front; coarsely, closely

punctate. Elytra considerably wider than the prothorax, gradually narrowing from the rounded humeri ;

deeply punctate-striate, the interstices closely and finely uniseriate-punctate, 3 widened at the base.

Beneath closely punctate ; first ventral segment slightly depressed along the middle in the ¢. Prosternal

sulcus deep, straight. Anterior femora with a short tooth.

Length 2-23, breadth 7-11 millim. (do @.)

Hab. Mexico (Zruqui, in Mus. Brit.), 'Toxpam (Sallé), Chilpancingo (//. H. Smith),

Puente de Ixtla (Wickham); GuaTEMALa, Guatemala city (Salvin, Champion), San

Joaquin, San Gerénimo (Champion); Nicaragua, Managua, Corinto (Solari) ; Costa

Rica, Patarra 1300 metres (biolley).

Found in abundance at Guatemala city. A small narrow form * nearly related to

the N.-American P. nigrina (Say), but with a subcylindrical, more coarsely and less

densely punctured prothorax, &c. The finer vestiture is soon abraded, but the long

scattered setze and the white basal spot on the elytra are always conspicuous. ‘The

sexes are scarcely distinguishable, except by the form of the pygidium. The smaller

specimens superficially resemble the N.-American Plesiobaris disjuncta.

18. Psudobaris nevius, sp. n.

_ 6. Oblong-ovate, rather convex, shining, black; the elytra with a few scattered long, coarse, decumbent

white sets on the alternate interstices 3, 5, 7, and 9, the third with a small patch of narrow whitish

scales at the base, the punctures on the under surface and legs each bearing a minute scale. Head

sparsely, minutely punctate, transversely grooved between the eyes; rostrum strongly arcuate, stout,

nearly as long as the head and prothorax, closely strigoso-punctate, the antenne inserted at the middle.

Prothorax transverse, strongly constricted in front, the sides rounded anteriorly and parallel at the base ;

sparsely punctate, except along the smooth median line. Elytra slightly wider than the prothorax,

depressed along the suture anteriorly, the humeri not prominent ; finely punctate-striate, the interstices

broad, flat, narrowly costate at the apex, each with a row of scattered very minute punctures, the third

widened at the base. Pygidium large, convex. Beneath sparsely, the abdomen very finely, punctate ;

first ventral segment deeply suleate. Prosternum deeply sulcate from the apex to the base. Legs short ;

femora stout, feebly dentate ; anterior tibie strongly, the others more feebly, unguiculate.

Length 24, breadth 14}, millim.

Hab. Guatemata, Tamahu in Vera Paz (Champion).

One somewhat abraded male. A small black form superficially resembling

P. callosipennis, with rounded apices to the elytra, a stouter rostrum, a longer and

deeper prosternal sulcus, stouter and feebly dentate femora, &c., the first ventral

segment (¢) deeply sulcate. Smoother than P. cylindricollis, the elytra finely

striate, &c.

* The insect is a little narrower than represented on the Plate.

3 KK 2

456 RHYNCHOPHORA.

19. Pseudobaris atitlana, sp. n. (Tab. XXI. figg. 17, 174, 6, 3.)

3. Oblong-ovate, very shining, black, the elytra with a small spot ef white scales at the base of the third

insterstice, the punctures of the under surface and legs each bearing a minute white scale. Head finely

punctate, transversely depressed between the eyes ; rostrum strongly arcuate, about as long as the head

and prothorax, stout, slightly flattened at the tip, closely, rather coarsely punctate. Prothorax conical,

constricted in front, sparsely, finely punctate, smooth along the median line. Scutellum transverse,

smooth, flat. Elytra somewhat undulate, with rows of small oblong punctures placed in fine strix, the

first and second strie becoming almost obsolete at the base, the interstices broad, flat, narrowly costate

on the apical declivity, each with a row of excessively minute punctures. Beneath very coarsely, the

abdomen sparsely and finely, punctate. Prosternum with the median sulcus abruptly terminating

between the coxee, the basal process flat, broadly emarginate behind (fig. 176). Anterior femora with a

blunt tooth, the others obsoletely serrulate. Anterior tibie strongly sinuate within, the uncus stout.

Length 4, breadth 2 millim.

flab. GUATEMALA, Panajachel 5000 feet (Champion).

One male, found, in Dec. 1880, in the arid district bordering the Lake of Atitlan.

Very like P. oscillans, differing from it in the much more distinctly punctate elytral

strie, the smooth, flat scutellum, the emarginate basal process of the prosternum, the

strongly sinuate anterior tibie, and the less cylindrical rostrum (¢), the anterior

femora with one small tooth only, and the others obsoletely serrulate.

20. Pseudobaris biolleyi, sp. n.

3. Oblong-ovate, very shining, black; the third elytral interstice with a few narrow whitish scales at the

base, the punctures on the under surface and legs each bearing a minute scale. Head closely punctate,

transversely depressed between the eyes; rostrum arcuate, about as long as the head and prothorax,

rather slender, finely punctate, the antenne inserted at the middle. Prothorax somewhat convex, much

broader than long, strongly constricted in front, the sides rounded anteriorly ; sparsely, finely punctate;

except along the smooth median line. Elytra oblong-subtriangular, undulate ; finely striate, the strie

distinctly punctate at the base, the interstices broad, flat, narrowly costate at the apex, each with a row

of scattered very minute punctures, the third with several additional impressions at the base. Beneath

coarsely, the abdomen finely, punctate ; fifth ventral segment shallowly foveate at the apex. Prosternal

sulcus shallow, not margined. Legs rather long and slender; anterior femora with a distinct tooth, the

others obsoletely dentate, the posterior pair shallowly sulcate in their outer half; anterior tibie with a

long apical uncus.

Length 34, breadth 12 millim.

Hab. Cosra Rica, Guatuso near Cartago 1500 metres (Biolley).

One male. Not unlike P. atitlana, but with the prothorax shorter and more

constricted in front, the rostrum more slender and subcylindrical, the elytra undulate

and more deeply striate, the prosternal sulcus shallow, &c. The posterior femora have

a shallow sulcus beneath, the others being excavate at the apex only.

. 21. Pseudobaris dentipes, sp.n. (Tab. XXI. fige. 18, 18a, ¢.)

Oblong, shining, black; the elytra with a dense oblong patch of narrow yellowish-white scales at the base,

the rest of the upper surface almost bare, the punctures on the under surface and legs each bearing a

small whitish scale. Head closely punctate, transversely depressed and foveate between the eyes;

rostrum stout, arcuate, a little longer than the prothorax, densely, rugosely punctate, much smooth

PSEUDOBARIS. 457

and flattened at the tip in,the @. Prothorax transverse, gradually narrowed forwards, strongly

constricted in front, the sides slightly rounded anteriorly and at the extreme base; closely, coarsely

punctate, except along the smooth median line, Elytra moderately long, gradually narrowing from the

rounded humeri, depressed along the suture; with feebly punctured deep stri, the interstices flat,

coarsely uniseriate-punctate, 2 and 3 closely, irregularly punctate, and 3 widened, at the base, 7-9

costate at the apex. Pygidium densely punctate, large and somewhat tumid in the 6, flattened, vertical,

and smaller in the 9. Beneath somewhat densely punctate; first ventral segment slightly depressed

down the middle in the ¢. Prosternal sulcus straight, rather shallow. Femora rather sharply dentate.

Length 43-53, breadth 2,4,-25 millim. (d @.)

Hab. Mexico, Cuernavaca in Morelos (H. H. Snith; Wickham; Deam, U.S. Nat.

Mus.).

A pair found by Mr. C. C. Deam, a female by Mr. Wickham, and a male by

Mr. H. H. Smith. More elongate than P. senescens, the elytra depressed along the

suture and almost bare (the basal spot excepted), the femora dentate. ‘This last-

mentioned character separates P. dentipes from P. discreta and its allies,

22. Pseudobaris tibialis. (Tab. XXI. figg. 19, 19a, ¢.)

Baridius tibialis, Boh. in Schénh. Gen. Cure. iii. p. 726+; vill. 1, p. 179°.

9. Pseudobaris gigantea, Solari, Ann. Mus. Genova, xlii. p. 483 (1906) °.

Hab. Mexico!3 (Sturm 2, in coll. Sallé; Truqui, in Mus. Brit.), Gapotlan, Tonila,

Morelia (Hége), Acaguizotla in Guerrero (If. H. Smith), Cuernavaca (Barrett, in U.S.

Nat. Mus.).

Apparently a common insect in Western Mexico, and recognizable amongst the

allied forms by its large size, immaculate elytra, and feebly dentate femora. I have

seen the types of Boheman and Solari, and also the specimen in the Sturm collection

The original type of B. tibialis + has

the prothorax a little more transverse and more coarsely punctured than usual, and

the ferruginous colour of the tibize in this insect is of course due to immaturity. The

first ventral segment is slightly hollowed down the middle in the male. ‘The elytral

subsequently described in Schénherr’s work

interstices are less distinctly costate at the apex than in P. undulata and its allies.

23. Pseudobaris cribrella.

Pseudobaris cribrella, Solari, Ann. Mus. Genova, xlii. p. 483 (1906) '.

Hab. Mexico, Atoyac, Teapa (H. H. Smith); Guatemaza, Zapote, Duefias (Champion) ;

Costa Rica!, Escazu, Higuito (Biolley), Caché (Rogers).

A small, oblong-ovate, black form, with a coarsely punctured prothorax and a row

of rather coarse transverse impressions along each elytral interstice (the third neither

widened nor aibo-squamose at the base), the prosternal sulcus straight and deep, the

anterior femora with a short tooth, the rostrum elongated and smoother in the female

than in the male. Sent in numbers from Higuito.

438 RHYNCHOPHORA.

24. Pseudobaris senesceus. (Tab. XXI. figg. 20, 20a, 2.)

Baridius senescens, Boh. in Schénh. Gen. Cure. viii. 1, p. 186°.

Baridius brevis, Sturm, in litt. *.

Hab. Mexico! (Sturm, in coll. Sallé; Mus. Brit.), Guanajuato, Juquila (Sal/é),

Chilpancingo (Hége, H. H. Smith), Xucumanatlan (H. H. Smith), Cerro de Plumas —

(Hoge) ; Nicaragua, Momotombo (ea Wickham).

I have seen thirteen specimens of this species, including the type, all but one being

from Mexico. It is an oblong, shining, black or eneous form, with numerous rather

coarse, decumbent, whitish sete on the elytra, in addition to the white spot at the

base. The elytral interstices are less coarsely and more sparsely punctured than in

P. cribripennis, the second and third relatively wider and with an irregular double

series of impressions. The rostrum is very stout, arcuate, and about as long as the

head and prothorax in both sexes. The prosternal sulcus is straight, shallow, and

margined at the sides.

25. Pseudobaris binotata, sp.n. (Tab. XXI. figg. 21, 21a, ¢.)

Oblong-ovate, convex, shining, black; the elytra with a dense oval patch of narrow white scales at the base

of the third interstice and several widely scattered decumbent white setz along the interstices 3, 5, 7,

and 9; the punctures of the under surface and legs each bearing a small white hair-like scale. Head

closely punctate, transversely depressed between the eyes; rostrum stout, arcuate, a little longer than

the prothorax, closely punctate, smoother towards the apex in the 2, the antenne inserted at the

middle. Prothorax transverse, rounded at the sides anteriorly, feebly constricted in front; coarsely,

closely punctate. Elytra rather short, narrowly punctate-striate, the interstices broad, flat, subcostate

at the apex, each with a closely-packed row of moderately coarse transverse punctures, 3 widened at the

base. Beneath closely punctate. Prosternal sulcus deep, straight. Femora unarmed.

Length 23-3, breadth 1,,-14. (¢ 2.)

Hab. GuateMaLa, Cahabon in Vera Paz (Champion: 3 2); Panama, Taboga I.

(Champion: @)

Three specimens. Very like the smaller specimens of P. cribripennis, but more

convex, the white patch at the base of the third interstice larger, the scattered sete

on the alternate interstices finer and less elongate. More convex than P. cylindricollis,

the prothorax arcuately narrowing from near the base, the anterior femora unarmed.

26. Pseudobaris cribripennis.

Pseudobaris cribripennis, Solari, Ann. Mus. Genova, xlii. p. 485 (1906) *.

Hab. Mexico (Truqui, in Mus. Brit.), Milpas in Durango (Forrer), Sierra de

Durango (//ége, in coll. Solari), Durango city, Tacambaro, Tehuantepec (Hodge),

Ventanas (forrer, Hége), Gonzales (Wickham), Chilpancingo, Soledad (H. H. Smith);

GvuaATEMALA, Santa Rosa, San Gerdnimo, Duefias (Champion), Yzabal (Sal/é), Guatemala

city (Salvin) ; Nicaragua, Managua (Solari !).

PSEU DOBARIS. 459

Sent us in numbers by the late C. F. Hége from Ventanas. This insect is nearly

related to P. luctuosa, Casey, from Florida *; but it is a little less elongate, and has

the elytra relatively shorter and more narrowed towards the apex, and the interstices

are subcarinate on the apical declivity. ‘The prothorax is very coarsely, closely

punctate (except along the smooth median line, which is often wholly wanting in some

specimens from the same localities), and the elytra have a row of coarse transverse

punctures along each interstice, those on 2, 3, 5, 7, and 9 each bearing a rather long,

decumbent, easily-abraded seta, 38 with a few white scales at the base. ‘The rostrum

of the male is rather coarsely punctate, that of the female being smoother and flatter

at the tip. The tarsal claws can scarcely be described as connate at the base in the

type kindly communicated by Signor Solari. The length varies from 23-44, and the

breadth from 14-2545 mm.

27, Pseudobaris notata. (Tab. XXI. figg. 22, 22a, 3.)

Baridius notatus, Boh. in Schénh. Gen. Cure. il. p. 723°.

$. Prosternum in large, fully-developed examples more or less tumid in front of the anterior coxex (the

median sulcus thus becoming wider and shallower, or obsolete posteriorly), in some specimens flattened

and with the median sulcus deep and parallel-sided; metasternum and first ventral segment broadly

hollowed down the middle; pygidium tumid in the centre.

Q. Rostrum more sparsely punctate than in the ¢; pygidium flattened, sometimes carinate down the

middle.

Hlab. Mexico! (Truqui, in Mus. Brit.), Ventanas in Durango (forrer), Tonila in

Colima, Cuernavaca (/ége), Parada in Oaxaca (Sal/é).

A very elongate, shining, black form with a conspicuous albo-squamose spot on the

basally widened portion of the third elytral interstice, of which I have seen numerous

males (including the type) and seven females. ‘The males vary in the development of

the prosternum as above described, and in fresh specimens the femora (which are

scarcely sulcate beneath) and tibie are more or less hairy. ‘The females vary

enormously in size, some of them (?=var. 8 of Boheman) being very small and

subcylindrical. ‘lhe specimens before me measure: length 43-84, breadth 14-53} mm.

28. Pseudobaris undulata. (Tab. XXI. figg. 23, 23a, 2.)

Baridius undulatus, Say, Descr. N.-Am. Cure. p. 17 (1831) '; Complete Writings, i. p. 281? [nec

B. undatus (Say), Boh. in Schénh. Gen. Cure. il. p. 683].

Baridius crenatus, Boh. in Schénh. Gen. Cure, iii. p. 681%.

Baridius depilis, Boh. loc. cit. p. 682°.

Pseudobaris costaricensis, Solari, Ann. Mus. Genova, xlil. p. 436 (1906) °*.

* The N.-American Baridius anthracinus, Boh, (the type, ¢, of which I have seen), is not Synonymous

with P. luctuosa as Casey supposed, but = Aulobaris ibis, Lec., a specimen of which from Florida is

pefore me. It has a long second joint to the funiculus.

440 | RHYNCHOPHORA.

Hab. Mexico!~, Colima, Guanajuato, Guerrero, Michoacan, Morelos, Vera Cruz,

Oaxaca, Tabasco, Yucatan; Brirish Honpuras; GuateMaLa; Nicaragua; Costa Rica? ;

Panama to Tabernilla, Canal zone.

It is not necessary to enumerate the exact localities for this insect, the commonest

Barid in our region, ranging from the Mexican States of Colima and Vera Cruz to the

Panama isthmus, and probably extending into the northern part of South America.

I have examined hundreds of specimens and am unable to distinguish more than one

variable species, the black and the brassy forms of which are mentioned by Say.

The types of B. crenatus and B., depilis, Boh., and of P. costaricensis, Solari (a 2 of the

geneous variety), have all been examined by me, and there can be no doubt that they

are synonymous with B. undulatus, Say, the present insect being the only Mexican

Pseudobaris applying satisfactorily to his brief description. ‘The “type” of B. sudb-

scabrosus, Boh., from the Chevrolat collection, communicated by Dr. Sjostedt, also

equals B. undulatus, but as this example does not accord with Boheman’s diagnosis,

there has perhaps been some mistake in labelling*. B. undatus, Boh., I am unable

to identify. The present species may be known by its oblong-ovate form, the very

shining black or somewhat brassy surface, the uneven elytra, with the interstices

sharply costate on the apical declivity, the deep, parallel-sided prosternal sulcus, the

stout, strongly arcuate rostrum (which is barely as long as the head and prothorax,

and is a little smoother and more slender in the female than in the male), the sulcate,

unarmed femora, &c. ‘The puncturing of the prothorax is coarse (except along the

smooth median line), the transverse depressions of the elytra are sometimes shallow,

and the white spot at the base of the third interstice varies in size, the scales being

often abraded. SB. depilis has the sides of the prothorax more oblique than in

BL. undulatus, but no value can be attached to this character. In one of the two

specimens from Trece Aguas (a small, narrow, immature ¢, perhaps not really

belonging here) the femora are distinctly toothed. Some of Biolley’s Costa Rican

examples are labelled as having been found on “ Labiatwz.”

29. Pseudobaris apicalis. (Tab. XXI. figg. 24, 24a, @.)

3. Baridius apicalis, Boh, in Schénh. Gen. Cure. iii. p. 7247.

' Baridius subscabrosus, Boh. loc. cit. p. 683°.

3. Rostrum alutaceous and finely punctate, flattened at the apex, the antenne inserted at about the middle.

2. Rostrum longer and smoother, flattened from near the base, becoming much thinner towards the tip, the

autennse inserted behind the middle.

flab. Mexico}? (coll. Solari); GuatEMaLa, Duefias, San Gerénimo ( Champion).

I have seen twelve specimens of this species, including the type. It is narrower and

relatively more elongate than P. undulata, the puncturing of the prothorax is denser

* B. subscalrosus is here treated as probably synonymous with P. apicalis.

PSEUDOBARIS. 441

and not so coarse, the elytra are less rounded at the sides anteriorly, and the rostrum

is dissimilarly formed in the two sexes. The elytral interstices are sharply costate on

the apical declivity, and the third is widened and albo-maculate at the base. The

prosternal sulcus is straight, deep, and sharply margined.

P. subcaudata superficially resembles P. apicalis, but it belongs to the P. acutipennis-

section of the genus.

30. Pseudobaris discreta.

Pseudobaris discreta, Casey, Ann. N. York Acad. Sci. vi. pp. 552, 554.

Hab. Norvu America, Texas}, Brownsville——Mexico (Truqui, in Mus. Brit.).

A Pseudobaris( 3 ) found by ‘Truqui in Mexico seems to belong to P. discreta, Casey

(described from a single example), of which a specimen from Brownsville has been

sent us by Mr. Barber. It is more shining than P. eribripennis, Solari, and has the

elytra less widened anteriorly and the interstices less rugose. ‘The rostrum is described

as slender, but this definition does not apply to either of the insects before me. The

third elytral interstice is widened and albo-squamose at the base in both species.

31. Pseudobaris guttifer, sp. n.

Oblong-ovate, shining, black; the third elytral interstice with a smail patch of narrow white scales at the

base, the punctures on the under surface and legs each bearing a minute scale. Head finely punctate,

transversely depressed between the eyes; rostrum arcuate, stout, about as long as the head and pro-

thorax, closely punctate, in the Q flattened and much smoother in its apical half, the antenne inserted

at about the middle. Prothorax transverse, constricted in front, arcuately narrowing from the base ;

closely, rather finely, punctate, except along the smooth median line. Elytra rounded-triangular,

narrowly punctate-striate, the interstices broad, flat, narrowly costate at the apex, each with an irregular

row of very fine punctures, which become transverse towards the sides, the third widened and more

closely punctate at the base. Beneath closely and coarsely, the abdomen finely, punctate ; first ventral

segment slightly depressed along the middle, and the fifth feebly foveate at the apex, in the ¢. Pro-

sternal sulcus shallow, not margined. Femora unarmed.

Length 31-33, breadth 13-1j millim. (¢ @.)

Hab. Mexico, Atoyac in Vera Cruz (Hf. H. Smith).

One female and two males. Of the same size and shape as P. stigmatica, but with

the rostrum (2) much shorter and stouter, the prothorax not so coarsely punctate, the

elytra rounded at the apex, with finer strie and much smoother interstices, the pro-

sternal sulcus shallow and not margined, the anterior femora unarmed. ‘The much

finer sculpture and the less sharply defined prosternal sulcus distinguish P. guttifer

from P. discreta and P. cribripennis.

32. Pseudobaris ocellata.

Pseudobaris ocellata, Solari, Ann. Mus. Genova, xl. p. 434 (1906)

Hab. Mexico, Toxpam (Sallé), Jalapa, Cordova (/Hége), Milan in Vera Cruz (Anab,

BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, February 1909. 3 LL

4492, RHYNCHOPHORA.

in U.S. Nat. Mus.), Motzorongo (Osborn, in U.S. Nat. Mus.), Atoyac, Teapa (ZH. 77.

Smith); Costa Rica}, Zent (Anab, in U.S. Nat. Mus.).

A small, oblong-ovate, shining, eneous form, with a very coarsely punctured pro-

thorax, a small albo-squamose spot at the base of the third elytral interstice, a straight,

deep prosternal sulcus, &c. ‘The rostrum of the female is flattened and smoother in its

apical half. The sculpture of the prothorax is variable, the punctures on the disc

being large and rounded in the type (which I have seen) and smaller in some of the

Mexican examples.

33. Pseudobaris lucens, sp. n. (Tab. XXI. figg. 25, 25a, 3.)

A brilliant sneous form very like P. lucida (infra, p. 448), and differing as follows :—General shape oblong-

ovate, due to the prothorax being rounded at the sides, the prothorax also more sparsely and not so coarsely

punctured ; the elytra not depressed along the suture, the striz more finely punctate and almost straight

to the apex, the interstices more feebly costate on the apical declivity and with the seriate punctures

very minute; the pygidium of the 9 declivous and with the narrowly exposed portion separated from

the rest by an incomplete transverse ridge, the prosternal sulcus shallow and feebly margined.

Length 32-31, breadth 13-13 millim. (¢ 9.)

Hab. Mexico (coll. Fry, in Mus. Brit.).

One pair, so like the southern P. lucida that they were at first supposed to be a

Mexican form of that species. The difference in the structure of the pygidium of the

female is somewhat remarkable, there being no trace of a transverse ridge in the

corresponding sex of P. lucida. The scales are wanting at the base of the third elytral

interstice, but they are probably abraded; the female has, on the left elytron, an

adventitious tubercle near the middle of this same interstice.

34, Pseudobaris parallelipennis.

Pseudobaris parallelipennis, Solari, Ann. Mus. Genova, xlii. p. 434 (1906) '.

Hab. Mexico, “ Sierra de Durango”! (Hoge, in coll. Solari).

This is a form of P. apicalis with the prothorax very coarsely punctate, and the

elytral strize broad and strongly crenato-punctate, the interstices transversely wrinkled,

the third neither widened nor maculate at the base. 1 have seen one of the types, a

female, which has the rostrum rather broad, alutaceous, and strongly flattened, and the

antenne inserted at about the basal third, as in the same sex of P. apicalis. The

prosternal sulcus is straight and deep. ‘The Durango habitat requires confirmation.

35. Pseudobaris subparallela, sp. n.

Oblong, narrow, shining, black, glabrous above, the punctures on the under surface and legs each bearing a

minute, white, hair-like scale. Head finely punctate, transversely depressed between the eyes ; rostrum

(¢) arcuate, moderately stout, about as long as the head and prothorax, very finely, sparsely punctate,

(2) a little longer, smoother, and flattened from near the base, the antenne inserted at about the basal

third (3) or fourth (2). Prothorax transverse, somewhat convex, constricted and much narrowed in

front, the sides strongly rounded anteriorly and parallel behind; closely, coarsely punctate, except along

PSEUDOBARIS. 443

the smooth median line. Elytra oblong, with narrow, feebly punctured strie, the interstices broad,

obsoletely uniseriate-punctate, flat, narrowly costate on the apical declivity, 9 raised from about the

middle onwards. Pygidium densely punctate, small in the @, larger in the ¢. Beneath very coarsely

and closely, the ventral segments sparsely and finely, punctate, 1 slightly depressed down the middle in

the ¢. Prosternal sulcus rather shallow. Femora without trace of tooth.

Length 33, breadth 14 millim. (¢ Q.)

Hab. Costa Rica (coll. Fry, in Mus. Brit.), Escazu 1200 metres (Biolley).

Three males and one female. This is the Costa Rican representative of the Mexican

P. parallelipennis, differing from it in the much more finely striate elytra, the narrower,

shining, and less flattened rostrum of the female, &c. The more coarsely punctured

prothorax and the immaculate elytra separate P. subparallela from P. apicalis.

36. Pseudobaris rugipennis, sp. n.

Oblong, opaque above, shining beneath, black; glabrous above, the punctures of the under surface and legs

each bearing a minute whitish scale. Head finely punctate, transversely depressed between the eyes ;

rostrum arcuate, moderately stout, a little longer than the prothorax, slightly flattened towards the tip,

finely punctate, the antenne inserted just behind the middle. Prothorax transverse, rounded at the sides

anteriorly, constricted in front; coarsely, densely punctate. Elytra oblong, very gradually narrowing

from the base, slightly compressed at the sides below the humeri ; with feebly punctured, narrow, deep

strie, the interstices flat, narrowly costate at the apex, each with a closely-packed row of coarse trans-

verse impressions, 3 not widened at the base. Beneath closely and coarsely, the ventral segments 2-9

sparsely and finely, punctate. Prosternal sulcus deep, straight. Femora unarmed.

Length 34, breadth 12 millim. (9?)

Hab. Mexico, Juquila in Oaxaca (Sal/é).

One specimen, perhaps somewhat abraded. An oblong, rugosely punctate, immacu-

late form; less elongate than P. parallelipennis and P. subparallela, and with the elytra

less widened anteriorly than in P. cribripennis and its allies.

37, Pseudobaris glabripennis, sp. n.

Oblong-ovate, shining, black with a brassy lustre; glabrous above, the punctures on the under surface and

legs each bearing a minute scale. Head sparsely, minutely punctate, transversely grooved between the

eyes ; rostrum (¢) bowed from the base, nearly as long as the head and prothorax, moderately stout,

closely punctate, flattened and smoother at the tip, (@ ) a little longer and abruptly flattened and almost

smooth from near the base, the antenne inserted slightly behind the middle in the ¢ and at about the

basal third in the 2. Prothorax transverse, rounded at the sides anteriorly, feebly constricted in front,

the sides subparallel at the base; closely, somewhat: coarsely punctate, sometimes with an abbreviated

smooth median line. Elytra a little wider than the prothorax, very gradually narrowing from the

rounded humeri, slightly depressed along the suture ; sharply striate, the strie with scattered punctures

which become coarse towards the base, the interstices broad, flat, narrowly costate on the apical declivity,

each with a scattered row of very minute punctures. Pygidium large and convex in the ¢, smaller and

transverse in the 2. Beneath coarsely, the abdomen sparsely and finely, punctate ; fifth ventral segment

sinuato-truncate at the apex, and the first flattened down the middle, in the g. Prosternal sulcus

straight, deep. Femora unarmed.

Length 375-32; breadth 14-14 millim. (¢ Q.)

Hab. Guatemata, Guatemala city, Capetillo, Duefias (Champion).

Six specimens, three of each sex. Smaller and less elongate than the Costa Rican

3 LL 2

444 RHYNCHOPHORA.

P. subparallela, the prothorax not so convex, less rounded at the sides, and feebly

constricted in front, the elytra more finely striate. Larger than P. minuscula, the

elytra more gradually narrowed from the base and rounded at the tip, the rostrum of

the female abruptly flattened. |

38. Pseudobaris mutabilis, sp. n.

Oblong-ovate, flattened above, very shining, eneous; glabrous above, the punctures on the under surface and

legs each bearing a minute scale. Head sparsely, minutely punctate, transversely depressed between the

eyes ; rostrum (d ) arcuate, as long as the head and prothorax, moderately stout and closely punctate at

the base, becoming more slender, flattened, and much smoother towards the tip, ( Q ) a little longer, and

flattened and slender from near the base, the antenne inserted behind the middle in both sexes.

Prothorax transverse, gradually narrowing anteriorly, feebly constricted in front; sparsely, finely punctate,

except along the narrow, smooth, median space. Elytra a little wider than the prothorax, unarmed at

the apex ; with faintly punctured, fine striew, the interstices almost smooth, broad, and feebly costate on

the apical declivity, the third not widened at the base. Pygidium large in the 3, small and transverse

inthe 9. Beneath sparsely, the abdomen very finely, punctate. Prosternum with a straight deep

sulcus. Legs slender; femora unarmed.

Var. Black or bluish-black.

Length 23~3, breadth 1 {)-14 millim. (¢ 9.)

Hab. Mexico (Trugqui, in Mus. Brit.), Teapa (H. H. Smith); Guatemata, Trece

Aeguas (Schwarz and Barber, in U.S. Nat. Mus.) ; Costa Rica, Irazu (ogers); Panama,

Volcan de Chiriqui (Champion).

This is a form of P. acutipennis with the apices of the elytra unarmed and the third

interstice glabrous at the base. It varies in colour in the same way, the Teapa and

Costa Rican examples corresponding to P. callosipennis. Fourteen specimens have

been seen, five of which are from Teapa.

39. Pseudobaris perexigua, sp. n.

Oblong, narrow, rather convex, somewhat shining, black; almost glabrous and finely alutaceous above, the

punctures on the under surface and legs each bearing a minute scale. Head convex, densely punctate,

transversely grooved between the eyes; rostrum moderately stout, about as long as the prothorax,

abruptly and somewhat obliquely bowed from the base, densely punctate, the apical half much smoother ;

antennal club rather stout. Prothorax transverse, constricted in front, the sides rounded anteriorly and

parallel behind; densely punctate. Scutellum very small, rounded. LElytra a little wider than the

prothorax, subparallel in their basal half; narrowly punctate-striate, the interstices closely and very

finely uniseriate-punctate, almost flat on the disc, subcostate at the apex, the ninth becoming cariniform

posteriorly. Pygidium large. Prosternal sulcus deep. Beneath closely, the ventral segments 1—4 very

sparsely and finely, punctate. Legs short; femora rugosely punctate, unarmed ; tarsal claws long.

Length 2, breadth 4 millim.

Hab. GuatEMALA, Cerro Zunil 4000 feet, Pacific slope (Champion).

One specimen, probably a male. A minute, narrow, oblong form not unlike

P. scabrida, less rugose above, the apices of the elytra u1armed, the rostrum not

so stout and somewhat oblique, the prosternal groove deeper.

Plesiobaris envwula, Casey, from Florida, is of about tle same size and shape as the

present species, except that it has the elytra more ‘narrowed posteriorly.

PSEUDOBARIS, 445

40. Pseudobaris stigmatica. (Tab. XXI. fig. 26, 2.)

Pseudobaris stigmatica, Solari, Ann. Mus. Genova, xlii. p. 432 (1906) *.

Hab. Mexico, “Sierra de Durango”! (Hoge, in coll. Solari).

This species, a co-type (2 ) of which has been examined, forms a sort of connecting-

link between the P. undulata- and P. acutipennis-groups. It is separable from all the

varieties of P. undulata by the short but distinct apical prominences of the elytra

and the elongate, comparatively slender rostrum (fig. 26). The anterior femora are

finely denticulate and the anterior tibie strongly sinuate within. The prosternal

sulcus is margined at the sides and moderately deep.

41. Pseudobaris acutipennis. (Tab. XXI. figg. 27, 27a, b, 2.)

Baridius acutipennis, Say, Descr. Curc. N. Am. p. 27 (1831) '; Complete Writings, i. p. 295°;

Boh. in Schénh. Gen. Cure. iii. p. 670°.

Pseudvbaris acutipennis, Casey, Ann. N. York Acad. Sci. vi. p. 558+.

Hab. Mexico! ~* (Truqui, in Mus. Brit.), Toxpam, Yolos, Parada, Jacale (Sallé),

Jalapa, Zacuaitipan (Hoge), Atoyac (H. H. Smith), Orizaba (H. H. Smith; Osborn, in

U.S. Nat. Mus.), Cordova, Nogales (Anaé, in U.S, Nat. Mus.), Tehuantepec (Mus.

Srit.); Guatemaua, Trece Aguas (Schwarz and Barber, in U.S. Nat. Mus.), San

Gerénimo, Duefias, Calderas (Champion); Panama, Volcan de Chiriqui (Champion).

Var. Nigro-ceruleous or black.

Pseudobaris callosipennis, Solari, Ann. Mus. Genova, xli. p. 431 (1906) °.

Hab. Mexico (coll. Solari), Omilteme in Guerrero (H. H. Smith), Toxpam (Sadié) ;

GUATEMALA, Chiacam, Purula, and San Gerdnimo (Champion); Costa Rica® (Biolley) ;

Panama, Volcan de Chiriqui (Champion).

A common insect in Central America, and mainly recognizable by its small size, the

dentate apices of the elytra, the interstices of the latter costate at the apex and the

third with a small patch of whitish scales at the base, and the slender legs. The typical

form is eneous in colour and it is found in many of the same localities as the dark

variety, the latter being rare in Mexico and common in the more southern countries.

Specimens also occur with the surface of the prothorax dull and alutaceous. The

females have a much longer, smoother, and more slender rostrum than the males.

The males have the first ventral segment slightly flattened in the middle and the fifth

truncate at the apex, leaving the pygidium partly visible from beneath. The prosternal

sulcus is deep and sharply margined, The types (¢ 2) of P. callosipennis, kindly

communicated by Signor Solari, are black, like the other examples we have received

from Costa Rica. About 100 specimens have been examined in all.

446. RHYNCHOPHORA.

42. Pseudobaris plicata, (Tab. XXI. figg. 28, 28a, ¢.)

g. Baridius plicatus, Boh. in Schénh. Gen. Cure. viii. 1, p. 180°.

Hab. Mexico!, Omilteme in Guerrero (H. H. Smith), Toxpam, Oaxaca (Sallé) ;

GUATEMALA, Quiché Mts. (Champion).

The type of this insect, a somewhat immature male, eneous in colour, kindly

communicated by Dr. Sjéstedt, is more elongate than P. acutipennis, and has the

prothorax straight at the sides and abruptly constricted in front, the elytra subparallel

at the base and undulate on the disc, and the first ventral segment sulcate down the

middle. Various specimens from Omilteme, Toxpam, Oaxaca, and Quiché are pro-

visionally referred to it; these examples, however, have the prothorax less abruptly

constricted in front and the first ventral segment simply flattened down the middle in

the male.

43. Pseudobaris subcaudata, sp. n.

Oblong-ovate, shining, black with a faint brassy lustre; the third elytral interstice with a small oblong patch

of narrow whitish scales at the base; the punctures of the under surface and legs each bearing a minute,

hair-like, white scale. Head finely punctate, transversely depressed between the eyes; rostrum (¢ )

arcuate, stout, a little longer than the head and prothorax, closely, finely punctate, (2 ) much longer,

smoother, and comparatively slender, the antenne inserted at (¢) or behind( @ )the middle. Prothorax

transverse, gradually narrowing from the base, constricted in front; rather sparsely punctate, smooth

along the median line. Elytra moderately long, very gradually narrowing from the rounded humeri,

undulate on the disc, and each with an angular prominence at the apex; sharply striate, the interstices

broad, flat, sharply costate at the apex, obsoletely uniseriate-punctate, 3 widened at the base. Beneath

closely and coarsely, the abdomen sparsely and finely, punctate ; first ventral segment flattened down the

middle in the ¢. Prosternal sulcus deep, straight, and sharply margined. Legs rather slender; femora

unarmed.

Length 34-4, breadth 13-14 millim. (¢ 9.)

Hab. Guaremata, Duefias, San Gerdnimo (Champion) ; Panama, Volcan de Chiriqui

4000 feet (Champion).

Nine specimens, all but one from Guatemala; these latter are taken as the types.

‘This insect has exactly the facies of P. apicalis (Boh.), and occurs with it in the two

Guatemalan localities, but is easily separable therefrom by the dentate apices of the

elytra, the more slender legs, and the slender, narrower, and less flattened rostrum of

the female. The single example from Panama has the apical prominences feebly

developed. P. subcaudata is more elongate than P. acutipennis and P. callosipennis,

approaching P. plicata in this respect.

44, Pseudobaris gibbicollis, sp. n. (Tab. XXI. fig. 29, ¢.)

Oblong-ovate, very shining, nigro-eneous ; the third elytral interstice with a short streak of narrow whitish

scales at the base, the. punctures on the under surface and legs each bearing a minute scale. Head

sparsely, minutely punctate, transversely depressed between the eyes ; rostrum arcuate, about as long as

the head and prothorax, stout, sparsely, very finely punctate, in the 2 a little longer, smoother, and

more slender, the antenne inserted at (¢) or slightly behind ( ) the middle, the club large and with

cuuspicuous sutures. Prothorax much broader than long, arcuately narrowing from the base and

PSEUDOBARIS. 447

strongly constricted in front, transversely depressed on the disc behind ; very sparsely, minutely punctate,

except along the abbreviated, smooth, narrow median space. Elytra much wider than the prothorax,

undulate on the disc, each armed at the apex with an acute dentiform prominence; with faintly punc-

tured fine strie, the interstices broad, flat, narrowly costate on the apical declivity, each with a row of

excessively minute scattered punctures. Beneath very sparsely, finely punctate. Prosternum with a

sharply-defined sulcus ending abruptly between the cox, the basal process flattened and almost smooth.

Legs slender ; femora unarmed.

Length 3-34, breadth 14-13 millim. (d 2.)

Hab. Muxico (Truqui, in Mus. Brit.), Zacualtipan in Hidalgo (Hoge).

Four specimens. A species nearly related to P. acutipennis, but with the upper

and under surfaces much smoother, the prothorax transversely depressed at the base

(so as to appear gibbous in front when viewed in profile), the antennal club larger.

45. Pseudobaris subrugosa, sp. n.

Oblong-ovate, subopaque, black, beneath shining and with a faint zneous lustre; the punctures on the under

surface and legs each bearing a minute scale. Head closely punctate, transversely depressed between

the eyes; rostrum strongly arcuate, stout, about as long as the head and prothorax, closely punctate,

in the ¢ smoother and more slender, the antenne inserted at (d ) or slightly behind ( Q ) the middle.

Prothorax transverse, arcuately narrowing from the base, constricted in front; closely, rather coarsely

punctate, except, along the median line, the interspaces finely alutaceous. Elytra much wider than the

prothorax, oblong, depressed along the suture, the humeri not prominent, the apices each armed with a

triangular tooth; with sharply-cut, feebly punctured stria, the interstices broad, flat, narrowly costate

on the apical declivity, strongly, transversely strigose. Beneath coarsely, the abdomen sparsely and

finely, punctate. Prosternal sulcus deep, straight. Legs rather slender ; femora unarmed.

Length 3-3,5, breadth 12 miliim. (d .)

Hab. Mexico (Truqui, in Mus. Brit.), Amula in Guerrero (I. H. Smith).

‘Two specimens. LP. subrugosa may be described as a form of P. callosipennis with

strongly, transversely strigose elytral interstices, and broader and deeper strie, the

third interstice neither widened nor squamose at the base, and the prothorax more

coarsely punctured. P. rugipennis has somewhat similarly sculptured elytra, but in

that insect the prothorax is broader and very coarsely sculptured, and the elytra are

unarmed at the apex.

46. Pseudobaris minuscula, sp. n.

Oblong-ovate, moderately shining, black with a brassy lustre, the punctures on the under surface and legs

each bearing a minute scale. Head minutely punctate, transversely grooved between the eyes ; rostrum

(¢) arcuate, stout, about as long as the head and prothorax, finely punctate, (Q)a little longer and

smoother, the antenne inserted near the middle in the ¢ and arising from nearer the base in the @.

Prothorax coarsely, closely punctate. Elytra sharply striate, the striz becoming deeper and more coarsely

punctate anteriorly, the interstices flat, narrowly costate at the apex, each with a single row of fine,

shallow, transverse punctures, the apices (as seen in profile) usually very feebly and obtusely produced.

Beneath coarsely, the abdomen finely, punctate. Prosternal sulcus deep, straight, sharply margined,

open behind. Femora unarmed,

Length 23-8, breadth 1-12 millim. (¢ ¢ .)

Ilab. Mexico (coll. Solari; Mus. Brit.), Toxpam (Sallé), Jalapa (Hoge), Mexico city,

Atoyac (i. I. Smith), Cordova (Anab, m U.S. Nat. Mus.), San Rafael Jicaltepec

448 RHYNCHOPHORA.

( Townsend, in U.S. Nat. Mus.), Temax in N. Yucatan ( Gaumer) ; Nicaragua, Managua

(Solari).

Numerous examples. Smoother than P.. cribrella, the surface with an eneous

lustre, the elytra with a series of very fine shallow punctures down each interstice, the

apices (in the form selected as typical) very feebly and obtusely produced, the anterior

femora unarmed.

47. Pseudobarius scabrida, sp. n.

Oblong-ovate, subopaque, black, the elytra and abdomen with a faint eneous lustre; glabrous above, the

punctures on the under surface and legs each bearing a minute scale. Head densely punctate, trans-

versely grooved between the eyes; rostrum strongly arcuate, very stout, nearly as long as the head and

prothorax, densely punctate, smoother at the tip in the 2. Prothorax transverse, feebly constricted in

front, the sides rounded anteriorly and parallel behind; coarsely, densely, confluently punctate. Elytra

oblong, a little wider than the prothorax, very gradually narrowing from the base; deeply punctate-

striate, the punctures becoming coarser towards the base, the interstices rather narrow, densely,

transversely rugose, flat on the disc, convex at the apex, the ninth cariniform, almost parallel with the

apical margin, and somewhat obtusely dentate at its point of termination near the suture. Beneath

coarsely and densely, the shining ventral segments more finely and sparsely, punctate. Prosternal

sulcus shallow. Legs short; femora and tibiz rugose, the femora unarmed.

Length 2}-2,9,, breadth 1-11 millim. (¢ 92.)

Hab. Mrxtco, Cuernavaca (Hége); GuatemaLa, San Gerdénimo (Champion).

Three specimens. A small, oblong, very rugose form, with a strongly arcuate, stout

rostrum, densely asperate elytral interstices, the ridge on the ninth terminating in a

small prominence, short legs, and a shallow prosternal groove. The surface-sculpture

is very like that of P. rugipennis (except that the elytral interstices are narrower), and

the apices of the elytra are formed much as in P. acutipennis.

48. Pseudobaris lucida, sp.n. (Tab. XXI. tigg. 30, 30a, 6, ¢; 31, 2.)

Somewhat fusiform, flattened above, very shining, seneous or cupreo-eneous; the third elytral interstice with

a small patch of whitish scales at the base, the punctures on the under surface and legs each bearing a

small scale. Head closely punctate, transversely depressed between the eyes; rostrum (d ) about as

long as the head and prothorax, arcuate, moderately stout, closely punctate at the base, becoming more

slender, flattened, and smoother towards the tip, ( 2 ) a little longer and abruptly flattened and smoother

from near the base, the antenne inserted slightly behind the middle in the ¢ and at the basal third in

the 2. Prothorax broader than long, conical, feebly constricted in front ; closely, rather coarsely

punctate, except along the smooth median line. Elytra very gradually narrowing from the oblique

humeri, which are almost in a line with the sides of the prothorax, more or less undulate on the disc

and depressed along the suture, the apices separately rounded; punctate-striate—the strie sinuous

towards the apex and the punctures becoming coarse and conspicuous towards the base,—the interstices

broad, flat, narrowly and sinuously costute posteriorly, each with a scattered row of minute punctures.

Pygidium large and convex in the g, subhorizontal and almost hidden in repose in the 2. Beneath

coarsely, the abdomen finely, punctate; fifth ventral segment truncato-emarginate at the apex (and the

pygidium partly exposed ventrally) in the ¢, longer and ascending to the tip in the 2. Prosternal

sulcus straight, shallow, incompletely margined. Legs rather slender ; femora unarmed.

Length 3-33, breadth 1z~-13 millim. (¢ 2.)

Hab. Costa Rica (coll. Solari), San José (Biolley); Panama, Boquete, Volcan de

Chiriqui 5600-4000 feet (Champion).

PSEUDOBARIS. 449

Eleven males and two females. A remarkably distinct form, superficially resembling

P. acutipennis and P. plicata, of a brilliant metallic-zeneous colour, with a conical

prothorax, a shallow prosternal sulcus, unarmed elytra, with the striz coarsely punc-

tured anteriorly and the interstices sinuously costate at the tip, and the pygidium

of the female almost covered by the elytra, the rostrum in this sex being abruptly

flattened, so as to appear gibbous at the base, much as in P. abrupta and P. puncti-

collis. The San José specimens were found on Polygonum punctatum by the late

P. Biolley.

49. Pseudobaris dividua, sp.n. (Tab. XXI. figg. 32, 324, 4, 2.)

Oblong-ovate, rather dull, black, with a brassy lustre, glabrous above, the punctures on the under surface and

legs each bearing a minute seale. Head minutely punctate, alutaceous ; rostrum (¢ ) arcuate, stout,

about as long as the head and prothorax, finely strigoso-punctate, ( Q ) smoother, longer, and more

slender, the antenne inserted at (d) or behind (@) the middle. Prothorax transverse, arcuately

narrowing from the base, feebly constricted in front; coarsely, closely punctate. Elytra depressed along

the suture, deeply punctate-striate, the snterstices subcostate on the apical declivity, each with a row of

fine, shallow, transverse impressions, Beneath closely punctate. Prosternum (fig. 32 b) deeply sulcate,

the sulcus not or feebly margined at the sides anteriorly and becoming divided into two between the

cox by a smooth, lanciform, anterior prolongation of the basal process, the latter feebly emarginate

behind. Femora unarmed.

Length 23-33, breadth 1-14 millim. (d 2.)

Hab. Mexico, Motzorongo (Flohr), Atoyac, Teapa (H. H. Smith); Guatemana, Trece

Aguas in Alta Vera Paz (Schwarz & Barber, in U.S. Nat. Mus.), Tamahu, Senahu,

Duefias (Champion); NICARAGUA (Sallé), Chontales (Janson) ; Costa Rica, Patarra

(Biolley).

Found in plenty at Trece Aguas and Tamahu. Extremely like P. diversa, but with

the elytra simply rounded at the apex, and the prosternal sulcus less strongly bifurcate

behind (the dentiform piece extending forward from the basal process in consequence

narrower) and not sharply margined at the sides anteriorly. P. puncticollis (Boh.)

has a somewhat similar, bifurcate prosternal excavation, but in that insect the basal

process is also sulcate, and j-shaped or lanciform between the coxe, the elytra are

more broadly striate, the rostrum is gibbous at the base, &c. Heterosternus carbo,

Kirsch, from Colombia, also has a similar sternal structure, but it is a smoother and

more elongate insect than P. dividua.

50. Pseudobaris abrupta, sp. n. (Lab. XXI. figg. 33, 33.4, 4, ¢ .)

Oblong-ovate, moderately shining, black, with a brassy lustre ; glabrous above, the punctures of the under

surface and legs each bearing a minute scale. Head sparsely, minutely punctate ; rostrum ( ¢ ) about

as long as the head and prothorax, abruptly bent inwards from near the base and rather slender thence

to the tip, and closely, finely punctate, (2 ) more slender, flattened, and much smoother, the antenne

inserted at about the basal third in both sexes. Prothorax slightly broader than long, rather convex,

gradually narrowing from the base, and feebly constricted in front; closely impressed with very coarse,

rounded punctures. Elytra rounded-triangular, very little wider than the prothorax, depressed along

the suture; deeply striate, the striee becoming coarsely punctate anteriorly, the interstices flat, rather

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. 3 MM

450 RHYNCHOPHORA.

narrow on the disc, feebly costate at the apex, each with a row of scattered moderately coarse punctures.

Beneath very coarsely, the abdomen and middle of the metasternum sparsely and finely, punctate ; first

ventral segment slightly hollowed down the centre in the ¢. Prosternum (fig. 33 6) very deeply sulcate to

near the coxee and hollowed thence to the base, the sulcus smooth and sharply margined, the basal process

emarginate behind and extending angularly forwards for a short distance in front. Femora unarmed.

Length 23-23, breadth 1-14 millim. (¢ 9.)

Hab. Nicaracva, Managua (Solari).

Seven specimens. Extremely like P. puncticollis (Boh.*), the type of which I have

seen, but with the basal portion of the prosternum formed very much as in P. diversa

(e.g. with a short, angular projection between the coxe in front), the elytra not so

broadly striate, &c. The rounded apices of the elytra and the gibbous rostrum distin-

guish P. abrupta from P. diversa, and the structure of the prosternum, rostrum, &c¢.,

separates it from P. dividua.

51. Pseudobaris diversa, sp. n.

Oblong-ovate, dull, black, with a brassy lustre, glabrous above, the punctures on the under surface and legs

each bearing a minute scale. Head minutely punctate, alutaceous, transversely depressed between the

eyes ; rostrum (¢) arcuate, stout, about as long as the head and prothorax, shining, closely strigoso-

punctate, (2) smoother, longer, and more slender, the antenne inserted at (¢) or behind (Q ) the

middle. Prothorax transverse, gradually and arcuately narrowing from the base, feebly constricted in

front; closely, coarsely punctate, except along the median line, the interspaces alutaceous. Elytra

gradually narrowing from the rounded humeri, depressed along the suture, each with a short angular

prominence at the apex; deeply punctate-striate, the interstices subcostate on the apical declivity, each

with a series of shallow transverse impressions. Beneath coarsely, the abdomen finely, punctate; first

ventral segment slightly depressed down the middle. Prosternum deeply sulcate from the apex to

between the anterior coxe, the sulcus sharply margined at the sides anteriorly and strongly bifurcate

posteriorly, the basal process depressed along the middle, angularly extended forwards, aud emarginate

behind. Femora unarmed.

Length 23-33, breadth 1-14 millim. (¢ @.)

Hab. GuatemMata, Guatemala city (Salvin, Champion), Zapote, Capetillo, Duefias

(Champion); Costa Rica, Escazu (Biolley); Panama, Volcan de Chiriqui (Champion).

Found in numbers in Guatemala. This insect superficially resembles P. crzbrella, but

it has the apices of the elytra angularly produced as in P. ca/lostpennis, differing from

both of them in the strongly bifurcate prosternal sulcus and the dull alutaceous surface

of the prothorax. P. subenea (Kirsch), from Peru, is an allied form with the prosternal

sulcus less furcate behind, the rostrum shorter, the prothorax finely punctured, &c.

CERCOBARIS, gen. nov.

fandibles short, decussate ; rostrum strongly and abruptly curved from the base, very stout and compressed,

not longer than the head and prothorax, the antenne inserted just behind the middle, the antennal club

densely pubescent, oblong-ovate, and about as long as joints 2-7 of the funiculus; prothorax feebly

constricted in front; scutellum free, rounded or oblong; elytra oblong or subtriangular, a little wider

+ Baris sulcipennis, Bris., is not synonymous with this species as stated by v. Heyden (Deutsche ent.

Zeitschr. 1882, p. 156), but is a true Baris, sensu Casey: cf. wnfra, p. 460.

CERCOBARIS. 451

than the prothorax, the apices angularly, horizontally produced; pygidium exposed, transverse, vertical ;

prosternum shallowly (C. forttrosirts and C. parva) or deeply (C. brevicauda) sulcate, the basal process

short and depressed (longitudinally ridged behind each coxa in (. brevicauda); anterior cox separated

by not more than half their own width; femora sublinear, sulcate, unarmed ; tibiae unguiculate at the

outer apical angle, and acute or toothed at the inner angle (fig. 345); tarsi with the third joint

somewhat narrowly bilobed, the claws very short, small, subconnate at the base; body oblong or

elongate, coarsely sculptured and almost bare above.

Type, C. fortirostris.

Two species from Central America are referred to this genus, and Baridius parvus,

Kirsch, from Peru, also belongs here. Cercodbaris is nearly related to the N.-American

Desmoglyptus, Casey, but differs from it in the form of the rostrum, antennal club,

apices of the elytra, &c. All three forms have somewhat the facies of Pseudobaris

angustula, Lec. ‘The produced apices of the elytra are suggestive of P. acutipennis

and its allies,

1. Cercobaris fortirostris, sp.n. (Tab. XXI. figg. 34, 34a, b, 3.)

Elongate, narrow, somewhat scaphiform, subopaque above, black, with a faint neous tinge, almost glabrous.

Head closely punctate, transversely grooved between the eyes ; rostrum exceedingly stout, about as long

as the head and prothorax, closely, longitudinally, strigoso-punctate. Prothorax broader than long,

rather convex, gradually narrowed from the middle; coarsely, densely punctate. Scutellum rounded, .

rugose. Elytra oblong, transversely depressed on the disc at the base, the apices separately, horizontally

produced ; narrowly punctate-striate, the punctures becoming coarser towards the base, the interstices

transversely rugulose, flat, the ninth raised towards the apex. Beneath coarsely, the abdomen very

sparsely and finely, punctate; first ventral segment slightly depressed along the middle in the ¢.

Prosternal sulcus shallow, terminating anteriorly in a faint arcuate ridge. Legs rugosely punctate ;

tibia somewhat curved externally, the anterior and intermediate pairs with a sharp tooth at the inner

apical angle, in addition to the usual uncus.

Length 24, breadth 1 millim. (¢ 2.)

Hab. Guatemata, El Tumbador, Pacific slope, 3000 feet (Champion).

One pair. More robust and a little larger than C. parva (Kirsch) (the type of

which I have seen), the rostrum stouter, the apices of the elytra more produced, &c.

2. Cercobaris brevicauda, sp. n.

Oblong, narrow, subopaque above, black, with an xneous lustre, almost glabrous. Head closely punctate ;

rostrum exceedingly stout, finely strigoso-punctate. Prothorax conical, nearly as long as broad,

coarsely, densely punctate. Scutellum oblong, rugose. Elytra gradually narrowing from the rounded

humeri, each with a small angular prominence at the apex; rather coarsely punctate-striate, the

interstices at the base not wider than the stris, transversely rugose, flat, the ninth raised towards

the apex. Beneath very coarsely, the abdomen finely, punctate. Prosternal sulcus deep, the ridge on

each side extending along the basal process behind the coxe and gradually sloping anteriorly.

Length 23, breadth 1 millim. (<.)

Hab. Panama, Volcan de Chiriqui 3000 feet (Champion).

One male, somewhat imperfect. Differs from C. fortirostris in the deep prosternal

sulcus, the walls of which extend backward behind the coxe, the conical prothorax,

the oblong scutellum, and the more coarsely punctate-striate elytra.

3 MM 2

452 RHYNCHOPHORA.

PHYSOBARIS, gen. nov.

Mandibles short, notched within, feebly decussate; rostrum stout, arcuate, moderately long, the antenne

inserted beyond the middle in both sexes, the club stout, globose-ovate, twice the width of the transverse

penultimate joints of the funiculus, sparsely pilose and shining at the base; prothorax transverse,

sinuate at the base; scutellum strongly transverse, free; elytra oblong-subtriangular, much wider than

the prothorax, separately rounded at the apex, undulate on the disc, nodose towards the apex, densely

sculptured; pygidium large, fully exposed, subvertical; prosternum slightly hollowed down the middle,

the basal portion short and depressed ; mesosternum depressed, exposed ; anterior coxs exserted, separated

by about one-third of their own width ; legs somewhat elongate ; femora unarmed, excavate at the apex

only beneath, more or less clavate; tibiae narrow, angulate at the outer apical angle, the anterior pair

with a long, the others with a shorter, apical uncus; tarsi slender, the lobes of the third joint narrow,

the claws long and divergent ; body oblong-ovate or elongate-ovate, metallic, dull, densely sculptured

above, clothed with small, inconspicuous, adpressed, setiform scales,

Type, P. intricata.

This genus includes two closely allied species from the Atlantic slope of Mexico or

Guatemala. It approaches Psewdobaris, but has the prosternum very shallowly and

indefinitely sulcate, the antenne inserted beyond the middle of the rostrum in both

sexes and with a larger club, the elytra nodose towards the apex and densely

sculptured, &c. The more approximate anterior coxe, the narrow prothorax, the

large, globose-ovate antennal clnb, &c., separate Physobaris from Rhytidobaris. The

antennal club is densely pubescent to near the base in P. intricata, but in P. nodosa

the basal half is shining.

_ 1. Physobaris intricata, sp.n. (Tab. XXII. figg. 1, 1a, ¢.)

Baris plicata, Klug, in coll. Sallé (nec Boh.).

Oblong-ovate, flattened and dull above, shining beneath, neous, the tip of the rostrum, the funiculus, knees,

and tarsi often more or less ferruginous ; sparsely clothed above and beneath with minute, ochreous,

adpressed, setiform scales. Head closely punctate, shallowly transversely grooved between the eyes;

rostrum slightly longer than the prothorax in the ¢, a little more elongate in the 2, somewhat abruptly

bent towards the tip, closely punctate; antennal club sparsely pilose at the extreme base. Prothorax much

broader than long, gradually narrowing from the base, constricted in front; densely, confluently punctate.

Scutellum hollowed in the middle. Elytra strongly, transversely undulate on the disc, nodose at the

middle and towards the apex, the humeri rather prominent ; shallowly, narrowly, sinuately punctate-

striate, the interstices broad, narrowly subcostate on each side, and closely pitted down the middle with

irregular series of oblong, confluent, foveiform impressions, which are as coarse as those of the strie.

Beneath coarsely, the abdomen very sparsely and finely, punctate; first ventral segment broadly

excavate in the gd. Legs slender, the femora moderately clavate; anterior tibise with the apical uncus

elongated in the 3.

Length 4-5, breadth 14-2,}, millim. (¢ 2.)

_ Hab. Mexico, Toxpam in Vera Cruz (Sadlé) ; Guarema.a, Sabo, Sinanja, and Purula

in Vera Paz (Champion).

Found in numbers at Sabo.

2. Physobaris nodosa, sp. n. (Tab. XXII. figg. 2, 2 a, ¢.)

Hlongate-ovate, narrow, dull above, shining beneath, geneous; sparsely clothed above and beneath with minute,

ochreous, adpressed, setiform scales. Head finely punctate, shallowly, transversely grooved between the

PHYSOBARIS.—TRACHYBARIS. 453

eyes ; rostrum strongly arcuate, a little longer than the head and prothorax, closely punctate ; antennal

club with the basal joint shining and less densely pubescent than the rest of its surface. Prothorax

not much broader than long, subcylindrical, rounded at the sides anteriorly, and feebly constricted in

front; densely, rugosely punctate, the punctures transversely confluent, the dise foveate on each side

behind the middle. Scutellum almost flat, smooth. Elytra moderately long, the dise strongly, trans-

versely undulate, and with a large, rounded, tuberculiform prominence towards the apex, the humeri

oblique and not prominent ; with rows of rather large oblong punctures placed along narrow striz, the

interstices uneven, densely, irregularly, confluently punctate, and here and there narrowly subcostate at

the sides, the punctures much smaller than those of the strie. Beneath coarsely, the abdomen very

sparsely and finely, punctate; first ventral segment broadly excavate down the middle. Anterior femora

strongly, the others more feebly, clavate ; anterior tibie slightly widened, the claw moderately long.

Length 44, breadth 14 millim. (<d.-)

Hab. Guatemata, Purula in Vera Paz (Champion).

One male. More elongate than P. intricata, the entire basal joint of the antennal

club shining, the prothorax subcylindrical, the elytra less nodose at the middle, and

with the punctures of the striae much larger than those of the interstices and the

humeri less prominent, the anterior legs stouter. The foveee on the prothorax may

be an accidental development.

TRACHYBARIS, gen. nov.

Mandibles bifid at the tip, strongly decussate ; rostrum moderately long, almost straight, the scrobes narrow,

rapidly descending ; antennal club stout, ovate, densely pubescent; head small; eyes narrow, strongly

transverse ; prothorax gibbous, shortly tubulate in front, very deeply sinuate at the base, the hind angles

projecting as far backwards as the truncated median lobe; scutellum free, flat, transversely quadrate ;

elytra lobed at the base, nodose, the humeri oblique, leaving the upper portion of the mesothoracic

epimera largely exposed from above ; pygidium fully exposed, vertical, strongly transverse; prosternum

flattened, with two oblique, impressed lines in front, the basal process broad; mesosternum depressed,

exposed ; anterior coxe large, exserted, separated by rather more than their own width ; femora feebly

clavate, unarmed, obsoletely sulcate beneath ; tibie strongly unguiculate and also armed with a sharp

tooth at the inner apical angle; tarsi rather slender, with the bilobed third joint well-developed, the

claws long, contiguous at the base ; body robust, oblong-ovate, metallic, rugose and nodose, almost

glabrous above.

Type, 7’. celuta.

The single species upon which this genus is based cannot be included under Baris,

even in the widest sense. The long, almost straight rostrum, the lobed base of the

elytra, the prominent, largely developed mesothoracic epimera, and the rugose, tuber-

culate upper surface of the body are characteristic. ‘lhe widely separated anterior

cox, the prominent mesothoracic epimera, &c., separate Trachybaris from Lepidobaris.

1. Trachybaris celata, sp.n. (Tab. XXII. tigg. 3,34, ¢ .)

Opaque, shining along the middle beneath, cupreous, the depressed portions of the elytral surface greenish.

Head rugosely punctate; rostrum about as long as the head and prothorax, moderately stout, slightly

arched above (as seen in profile), almost straight and flattened beneath, densely, longitudinally rugose,

the antenne inserted near the middle. Prothorax strongly transverse, somewhat rounded at the sides,

abruptly narrowed in front ; densely, rugosely punctate and sparsely granulate, here and there nodose,

depressed along the middle at the base, and with a small A-shaped hump in the centre and a short oblique

404 RHYNCHOPHORA.

ridge on each side of it anteriorly. Scutellum rugose. Elytra wider than the prothorax, moderately

long, concave and undulate on the disc, with a subangular, laterally projecting prominence behind the

similarly-shaped humeri; very shallowly, narrowly, and irregularly punctate-striate, the interstices

uneven, alutaceous, and rugosely punctate, here and there longitudinally raised, the fifth with a very

large, oblong, and the seventh with a much smaller, tubercle near the apex, the apices also with a

prominent flattened tubercle. Beneath closely punctate, rugose and alutaceous along the sides.

Prosternum slightly hollowed down the middle. Legs alutaceous, strongly rugose, and subgranulate.

Length 64-83, breadth 33-4 millim. (@.)

Hab. Mexico, Toxpam in Vera Cruz (Sal/é).—Cotompia (coll. Pascoe, in Mus. Brit.).

Two females, differing only in size. A remarkable form and unlike any other Barid

known to me.

BUSCKIA, gen. nov.

Mandibles curved, toothed within, decussate; mentum strongly transverse; rostrum very short, curved, stout,

widened towards the tip, the scrobes oblique and rapidly descending; antenne with a closely-articulated,

stout, gradually widened funiculus, the shining basal joint of the club * cylindrical and forming a continuous

outline with it, the club scarcely longer than the two preceding joints united, pointed, and with its three

outer joints extremely short and closely pubescent (fig. 46); prothorax shortly tubulate in front,

deeply bisinuate at the base; scutellum free, concave, transverse ; elytra broad, subcordate; pygidium

subvertical, ventrally exposed, strongly transverse; prosternum with two short, impressed, oblique

lines extending forward to the deep transverse subapical groove, the basal process broad, flattened,

and notched in the middle behind ; mesosternum depressed, exposed ; anterior coxe separated by fully

their own width; legs short; femora excavate at the apex only beneath, the anterior pair with a minute

tooth ; tibie short, broad, angularly dilated near the base and at the apex externally (fig. 4c); tarsi

with the bilobed third joint broad, the claws minute and connate at the base; body robust, broad,

rhomboid-ovate, almost glabrous above.

Type, B. leeythidis.

The type of this remarkable new genus, which has more the facies of a Contrachelus

or Lhyssomatus than of a Barid, was found breeding in the nuts of a species of

Lecythis¢ on the canal-zone at Panama, in July 1907, by Mr. Aug. Busck. The

structure of the antennz is unique, so far as I am aware, amongst the Barids, the

club here forming a continuous outline with the funiculus, The tibie are formed as

in Pseudoptatus, Acanthobaris, and various Diorymert.

1. Busckia lecythidis, sp.n. (Tab. XXII. figg. 4, 4a-c, 2.)

Opaque and alutaceous above, shining beneath, black; the punctures on the under surface and legs each

bearing a very minute setiform scale. Head finely punctate, shallowly foveate between the eyes, the

latter large; rostrum much shorter than the prothorax, finely punctate, the antenne inserted at about the

middle, the joints 3-7 of the funiculus transverse, the first joint of the club almost bare. Prothorax

transverse, gradually narrowing from the base to the short tubulate portion; densely, finely punctate, the

narrow interspaces raised, sinuous, and confluent, forming longitudinal ruge, the disc with indications of

a smooth median line. Elytra much wider than the prothorax, undulate, narrowly punctate-striate, the

punctures sharply defined, the interstices densely alutaceous, broad, flat, each one (the sutural excepted)

with a much interrupted, sharp, narrow, median ridge, the ridges becoming more complete at the sides.

* It is less elongate than shown in our figure 4 4.

+ Order Myrtacee. ? LZ. coriacea, DC. (cf. Biol. Centr.-Amer., Botany, i. p. 414).

BUSCKLA.—CHRYSOBARIS. 45D

Beneath closely punctate, the first ventral segment broadly flattened in the middle in the d, the

pygidium sloping ventrally and not visible from above.

Length 53-53, breadth 3-33 millim. (¢ 2.)

Hab. Panama, Boqueron, 60 miles south of Tabernilla (Busch, in U.S. Nat. Mus.).

Numerous examples, kindly communicated by the Director of the Smithsonian

Institution for description.

CHRYSOBARIS, gen. nov.

Mandibles short, decussate; rostrum separated from the head by a transverse groove, stout, strongly, abruptly

arcuate, moderately long, the antenne inserted at or near the middle, the antennal club ovate, densely

pubescent, and rather small; prothorax deeply sinuate at the base ; scutellum small, free, rounded; elytra

angularly produced at the apex; pygidium exposed, subvertical, strongly transverse; prosternum with

two fovee in the transverse subapical groove, and a fine longitudinal ridge extending down from them

exteriorly to the cox, the median space slightly hollowed; anterior coxw separated by about their own

width ; legs short; femora unarmed, sulcate; tarsi slender, with third joint narrowly bilobed, the claws

long, subconnate or narrowly separated at the base; body oblong-ovate, metallic, setulose or glabrous above.

Type, C. plurisetosa.

The three small species placed under this genus have the elytra, &c., formed as in

Pseudobaris acutipennis and its allies, but they cannot be satisfactorily treated as

congeneric, on account of the bifoveate, feebly sulcate prosternum and the abruptly

bowed rostrum. C. plurisetosa has a somewhat dense setiform vestiture; the other

two species are glabrous and very rugose above, and have a longer dentiform prominence

at the apex of each elytron.

1. Chrysobaris plurisetosa, sp.n. (Lab. XXII. figg. 5, 5a, b, 2.)

Somewhat convex, very finely alutaceous, moderately shining, eneous or cupreo-2eneous ; the upper surface

clothed with rather long, adpressed, pallid or golden, setiform scales, which are condensed into one or two

dense lines down each elyral interstice (fig. 55), the vestiture sparser and finer beneath. Head closely

punctate, deeply, transversely grooved between the eyes; rostrum about as long as the head and pro-

thorax, abruptly bowed from the base, densely punctate, smoother at the tip, the antenne inserted at a

little behind the middle. Prothorax transverse, gradually narrowing from the base, feebly constricted

in front; densely punctate, with indications of a smooth median line. Scutellum rugose. Elytra wider

than the prothorax, gradually narrowing from the rounded humeri, angularly produced at the apex ;

finely punctate-striate, the interstices broad, flat, transversely rugulose, and closely, finely uniseriate-

punctate, the third somewhat confusedly produced. Beneath very coarsely, the ventral segments sparsely

and finely, punctate. Prosternum with a transverse, posteriorly widened, sharply-defined excavation in

front, enclosing the two deep fovew. Femora coarsely punctate.

Length 22-23, breadth 14-11 millim. (9 .)

Hab. Guatemata, Guatemala city, Capetillo (Champion).

Two specimens.

2. Chrysobaris corrosa, sp.n. (Tab. XXII. figg. 6, 64, 3.)

AEneo-cupreous, the tip of the rostrum greenish, moderately shining, subglabrous. Head densely, rugulosely

punctate, shallowly, transversely grooved between the eyes; rostrum about as long as the head and

prothorax, densely, rugulosely punctate, much smoother at the tip, the antenne inserted at the middle.

456 RHYNCHOPHORA.

Prothorax transverse, arcuately narrowing from the base, feebly constricted in front, obsoletely bifoveate

on the disc; closely pitted with rather coarse rounded punctures, the interspaces raised and reticulate.

Elytra much wider than the prothorax, subtriangular, the humeri somewhat prominent, the apices each

armed with a short dentiform prominence; finely punctate-striate, the striz becoming wider and more

coarsely punctured anteriorly, the interstices closely, transversely rugose and feebly uniseriate-punctate,

narrow at the base, the fifth longitudinally raised at its point of termination. Beneath very coarsely,

the ventral segments more sparsely and finely, punctate; first ventral segment slightly depressed down

the middle. Prosternum simply bifoveate in front. Femora very rugose.

Length 21, breadth 14 millim. (<¢.)

Hab. Guatemaua, Chiacam in Alta Vera Paz (Champion).

One specimen. The rugose sculpture, the somewhat dilated humeri, the more

divergent, dentiform, apical prominences, the simply bifoveate prosternum, and the

almost glabrous surface separate this species at a glance from C. plurisetosa.

3. Chrysobaris cothurus, sp. n. (Tab. XXII. figg. 7, 74, 3.)

Very like C. corrosa, neous in colour; the prothorax more constricted in front and deeply bifoveate on the

disc ; the elytra strongly undulate, obliquely compressed at the sides below the humeri (the margins thus

appearing sinuate), the interstices less rugose, polished, and more distinctly uniseriate-punctate, narrowly

costate towards the base and apex, the fifth more raised at its point of termination, the apical pro-

tuberances less abrupt ; the prosternum simply bifoveate in front.

Length 23, breadth 11 millim. (¢.) .

Hab. Mexico, “Sierra de Durango ” (//6ge).

One specimen, kindly presented to us by Signor Solari. The polished uneven

interspaces of the elytra give a glittering appearance to the upper surface of this

insect. ‘The locality Durango requires confirmation.

CHALCOBARIS, gen. nov.

Mandibles short, decussate; rostrum long, stout, arcuate, separated from the head by a transverse groove ;

antenne (fig. 8a) with a stout, elongate-ovate, densely pubescent club, which is longer than joints 2-7

of the funiculus united, the latter transverse, closely articulated, and widening outwards ; prothorax

deeply sinuate at the base, conical, the sides forming a continuous outline with the oblique humeri;

scutellum small, rounded, free; elytra subcordate; pygidium exposed, declivous; prosternum with two

deep fovew near the apex, and a fine longitudinal ridge extending down from each of them exteriorly to the

coxe, the median space flattened, the basal process broadly truncate; anterior coxe separated by nearly

their own width ; femora unarmed, shallowly sulcate; tibiz almost straight; tarsal claws minute, connate

at the base; body oblong-subrhomboidal, metallic, almost glabrous.

Type, C. panamensis.

The type of this genus has the prosternal structure of Chalcobaris, but the tarsal

claws are minute, the rostrum and antennal club are elongated, and the body is

differently shaped. Pseudobaris lucida and P. lucens approach C. panamensis, but

they have a sulcate, non-foveate prosternum, long tarsal claws, &c.

1. Chalcobaris panamensis, sp.n. (Tab. XXII. figg. 8, 8a, 2.)

/@neous, shining. Head densely punctate; rostrum a little longer than the head and prothorax, moderately

curved, densely, fively punctate at the base and much smoother thence to the tip, the antenne inserted

CHALCOBARIS.—BARIS. 457

at about the basal third, Prothorax obliquely narrowed from the base, feebly constricted in front ;

densely, coarsely umbilicate-punctate. Elytra rather short, narrowly punctate-striate, the interstices

broad, flat, transversely rugose, closely uniseriate-punctate. Beneath densely, the abdomen more

shallowly, umbilicate-punctate.

Length 23-24, breadth 1}-12 millim. (2 .)

Hab. Panama, Bugaba (Champion), Tabernilla, Canal zone (Buseck, in U.S. Nat. Mus.).

Two females. It is possible that the male may have a still longer antennal club.

The close umbilicate puncturing of the under surface is a striking character in this

insect.

BARIS.

Baris, Germar, Ins. Spec. Nov. p. 197 (1824) (part.); Casey, Ann. N, York Acad. Sci. vi. pp. 465,

469.

Baridius, Schénherr, Gen. Cure. iii. p. 643 (1836) (part.).

I follow Casey in restricting the genus Baris, Germ. (type, timida, Rossi)

(= Baridius, Schénh., type viridanus, Boh.), for the numerous American species

with the base of the antennal club more or less shining and sparsely pilose, the

rostrum short and stout, the prosternum unimpressed or indefinitely sulcate (except in

B. quadratipennis and B. prodita), and the pygidium exposed, either ventrally or

dorsally. This definition, however, as stated by Casey, will not strictly apply to many

of the Palearctic species at present referred to it. As thus limited, Baris includes

about fifty perfectly homogeneous forms from N. America, and many others from Central

and S. America, though it is not so well represented in our region as Pseudobaris, Lec.

B. quadratipennis and B. prodita have the base of the antennal club shining and the

prosternum more or less sulcate (thus combining the characters of Baris and Pseudo-

baris), the prothorax tubulate, &c., and they will probably have to be removed

eventually. The Nicaraguan 2. fervida and its allies are large, metallic, coarsely

punctured, peculiar forms restricted to Tropical America. 8. strenua, B. striata,

B. sulcipennis, B. sinuatirostris, &c., are characteristic N.-American or Mexican Barids,

some of which extend down the central plateau to Guatemala. B. erea and the small

metallic Tropical-American insects related to it are so variable and so imperfectly

segregated, that I am unable to come to any definite conclusion concerning them,

though hundreds of specimens (including long series from many localities) have been

studied for the purpose. The males of the Central-American forms have the posterior

portion of the metasternum and the first ventral segment more or less excavate or

flattened in the middle, and the apical margin of the fifth segment sometimes

thickened or sublamellate in the centre, and the prominence limited on each side by a

semicircular or shallow excision. The pygidium, too, in that sex is often separated

from the last dorsal segment by a sharply defined transverse suture or ridge (B. duran-

goana, B. zapotensis, B. erea, &c.); but this suture is sometimes wanting in certain

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. SNN

458 * RHYNCHOPHORA.

species, as in the female, and sometimes covered by the apices of the elytra.

B. fervida, B. fluctuosa, &c. the strongly unguiculate tibiz are more or less dentate

at the inner apical angle in the female, this tooth being obsolete in the male.

S.-American Baridius ferrugo, B. wnescens, B. ater, B. erubescens, and B. smaragdinus,

Kirsch, belong to Baris as here understood *.

The following table will assist in the identification of the Central-American species ;

some of those numbered 22-30, however, still require further investigation, several of

them having been described by Boheman or Solari from single specimens only :—

a. Tibie (except in B. occidua) more or less dilated or toothed at the outer

apical angle (appearing hollowed on their outer edge).

a’. Rostrum with two undulate longitudinal ridges, and also hairy, towards

the apex beneath. Frontal depression shallow. Scutellum strongly

transverse. Body black or piceous.

a’, Elytral interstices narrowly subcostate on each side, coarsely scriate-

punctatedown the middle. . . . 2... 2...

6°, Elytral interstices simply seriate-punctate - + ss

6’. Rostrum without distinct ridges beneath; frontal depression sharply

defined.

c’. Body black or piceous ; elytra even, the interstices uniseriate-punctate :

length under 3 mm. . . a coe 2 eg ee

d’, Body neous ; elytra uneven, the interstices more closely punctate :

length 6 mm. a

6. Tibiz not or scarcely dilated at the outer apical angle (almost straight on

aad outer edge) ; rostrum without ridges beneath.

= Fareal claws long; pygidium large or moderately large.

. Prosternum unimpressed or indefinitely sulcate down the middle;

prothorax not tubulate in front.

a*, Prothorax gibbous; scutellum rather large, transverse-oval ; rostrum

abruptly bent at about the middle; antennal club glabrous at

the extreme base only; frontal depression very shallow: species

large, metallic, coarsely punctured . .

b°. Prothorax feebly convex; frontal depression sharply detined.

a* Scutellum transverse, subquadrate, or rounded, small.

a’. Body black or piceous, sometimes with a faint zeneous lustre.

a‘. Elytra strongly undulate, deeply sulcate, and _ coarsely

punctured . .

b°. Elytra more even, less coarsely punctured

6°. Body in part rufescent, the elytra almost bare a

c’. Body more or less metallic, the elytra in some of the species

(B. aspera, B. setosella, B. inopina) closely setulose

Species 1-4.

Species 5, 6.

Species 7, 8.

Species 9.

Species 10 +.

Species 11.

Species 12-15.

Species 16.

Species 17-30.

* It may be noted here that Baridius collaris, Boh., belongs to Loboderinus, Solari, whose two species,

clavatus and basalis, are probably ¢ and @ respectively of Boheman’s insect.

~ B. metallica, B. metallescens, B. catenulata, and B. viridana, Boh., and B. interpunctata, Germ., are allied

S.-American forms.

The

BARIS. 459

b*, Scutellum oblong, narrowed posteriorly ; elytral interstices broad

and minutely uniseriate-punctate ; body geneo-piceous . . . Species 31.

d?, Prosternum sulcate; prothorax abruptly tubulate in front ; elytral

interstices each with a scattered row of fine, slender sete ; frontal

groove deep ; body black: length 3-4) mm.

«. Rostrum arcuate above and concave beneath ; scutellum small,

subtriangular ; prosternal sulcus shallow . . + + + + + + = Species 32.

d°®. Rostrum arcuate above and broadly flattened beneath ; scutellum

larger ; prosternal sulcus deep . Soe ee ee Species 33.

d’. Tarsal claws small; pygidium very short, vertical ; frontal depression

shallow ; prosternum unimpressed ; elytra costate at the apex; body

oblong, polished, rufescent: length Qkmm.. 2. - e+ 6 ee ee Species 34.

1. Baris ingens. (Tab. XXII. figg. 9,94, 6 .)

Baris ingens, Casey, Ann. N. York Acad. Sci. vi. pp. 471, 476°. |

Hab. Norra America, Arizona !.—Mexico (Mus. Brit.), Northern Sonora (Morrison),

Ciudad and Ventanas in Durango (ége), Yolotepec in Oaxaca (Sallé).

This is the largest of the N.-American species of Baris, and like some of its allies

extends southward into Mexico or Guatemala. It is probably a large form of

B. striata, with the vestiture of the elytra, pygidium, and under surface a little longer

and more abundant. In some of the Mexican specimens the second and third elytral

interstices are more or less biseriate-punctate.

2. Baris striata.

Baridius striatus, Say, Descr. N. Am. Cure. p. 17 (July 1831)+; Complete Writings, i. p. 281°.

Baris striata, Lec. Proc. Am. Phil. Soe. vi. p. 291 *s Casey, Ann. N. York Acad. Sci. vi. pp. 471,

477°.

Baridius mexicanus, Sturm, in litt.’.

Hab. Norta America ! 24, Michigan to Arizona °,—Mexico® (Mus. Brit.), Omilteme

in Guerrero $000 feet (H. H. Smith); Guatemata, Duehas (Champion).

The seven specimens from Mexico referred to this species are very like B. strenua,

but they have the prothorax less rounded at the sides and a little narrower, the elytra

somewhat longer, and the vestiture of the latter and of the under surface sparser and

finer. The punctures on the prothorax are large and here and there confluent. In

both insects the coarse seriate punctures on the elytra are so closely placed as to make

the lateral portions of the interstices appear subcostate.

3. Baris strenua. (Tab. XXII. figg. 10, 104, ¢-)

Baridius strenuus, Lec. Proc. Acad. Phil. 1868, p. 363°.

Baris strenua, Lec. Proc. Am. Phil. Soc. xv. p. 2907; Casey, Ann. N. York Acad. Sci. vi.

pp. 472, 480°.

Baridius punctatissimus, Duges, in litt. *.

3NN 2

460 RHYNCHOPHORA.

Hab. Nortu America, Wisconsin 12, Kansas!23, Montana’, New Mexico 2, Texas %,

Arizona °.—Mexico* (coll. Solari), Cuernavaca (Sallé, Wickham), Toluca, Puente de

Ixtla (Wickham), Chilpancingo, Amula, and Tepetlapa (H. H. Smith), Guanajuato,

‘Toxpam, Yolos (Sal/é), Cordova (Hége), Temax in N. Yucatan (Gaumer) ; GUATEMALA,

San Geronimo (Champion).

Found in numbers at Cuernavaca and Temax, and singly in Guatemala. A broad

form, with prominent ridges on the underside of the rostrum towards the tip, com-

paratively short elytra, a strongly transverse prothorax, and conspicuous vestiture, the

elytral interstices narrowly subcostate on each side and coarsely uniseriate-punctate

down the middle. Colonel Casey has kindly sent us specimens of B. strenua, from

Kansas, for comparison, and also of B. umbilicata, Lec , the latter chiefly differing from

B. strenua in the less prominent humeri and the non-costate elytral interstices. ‘The

examples before me measure : length 4-6, breadth 2;4-3 mm.

4, Baris sinuatirostris, sp. n. (Tab. XXII. figg. 11, lla, 2.)

Oblong-ovate, subopaque, nigro-piceous or black, the anterior margin of the prothorax, the tip of the

rostrum, and legs, and in one specimen the elytra also, rufescent; the elytra with a row of short,

semierect sete along each interstice, the punctures on the under surface and legs also bearing small

setiform scales. Head closely punctate, transversely grooved between the eyes ; rostrum stout, arcuate,

a little shorter than the prothorax, coarsely, closely punctate, with two undulate longitudinal ridges

towards the apex beneath. Prothorax strongly transverse, rounded at the sides anteriorly, narrow at

the apex ; densely pitted with very coarse, rounded punctures. Scutellum strongly transverse. Elytra

a little wider than the prothorax, gradually narrowing from the rounded humeri; punctato-sulcate, the

interstices slightly wider than the sulci, narrowly subcostate on each side, and each with a closely-packed

row of coarse punctures down the middle. Beneath coarsely, closely punctate ; first ventral segment

excavate down the centre in the ¢. Anterior cox rather narrowly separated. Tibia somewhat

hairy, sharply dilated at the apex externally, the anterior pair sinuate within in the ¢.

Length 34-32, breadth 14-1,3, millim. (¢ 9.)

Hab. Mexico, San Angel, Distrito Federal (Wickham).

One pair, captured during the past year by Mr. Wickham. Smaller and duller than

Sb. strenua, Lec., the prothorax still more densely punctate, the legs at least rufescent,

the entire under surface very coarsely and closely punctured in both sexes. The

punctures of the elytral interstices are as coarse as those of the strie.

5. Baris sulcipennis. (Tab. XXII. figg. 12, 12a, 2.)

Baris sulcipennis, Brisout, Ann, Soc. Ent. Fr. 1870, pp. 387, 49°; v. Heyden, Deutsche ent.

Zeitschr. 1882, p. 255.

Baridius puncticollis, Sturm, in litt. (nec Boh.) *.

Hab. Mextco?* (Sallé, ea coll. Sturm), Chilpancingo and Tepetlapa in Guerrero

(H. H. Smith), Cuernavaca, Puente de Ixtla (Wickham), Juquila in Oaxaca (Sallé) ;

GUATEMALA, J)uefias, Capetillo (Champion).

Dr. Lucas v. Heyden has been kind enough to communicate the type of this species,

which was said to have been found in Germany!. It is not the B. puncticollis of

BARIS. 461

Boheman * as he supposed?, but a true Baris very nearly related to B. strenuwa,

Lec., differing from that insect in its average smaller size and the non-costate sides

of the elytral interstices. The smooth median line on the prothorax is usually very

conspicuous. The intermediate and posterior tibie are sharply dilated at the outer

apical angle. ‘The first ventral segment is deeply excavate down the middle in the

male, as in the allied forms. Mr. Wickham has recently found B. sulcipennis in some

abundance at Cuernavaca. Four specimens only were found in Guatemala, in the

valley between the Volcanos Agua and Fuego. The examples before me measure:

length 3-44, breadth 13-2 mm.

6. Baris spissirostris, sp.n. (Tab. XXUI. figg. 1, 1a, 3-)

Q. Oblong-ovate, shining, black or piceous, the tarsi ferruginous ; the punctures on the elytral interstices,

under surface, and legs each bearing a small scale. Head sparsely, minutely punctate, shallowly,

transversely grooved between the eyes; rostrum very stout, feebly curved, much shorter than the

prothorax, closely punctate, slightly sinuate beneath (when viewed in profile). Prothorax transverse,

feebly constricted in front; coarsely, very closely punctate, and with an abbreviated smooth median

line. Scutellum strongly transverse. LElytra slightly wider than the prothorax, deeply punctate-

striate, the interstices coarsely uniseriate-punctate throughout. Beneath closely punctate. Intermediate

and posterior tibis acutely dentate at the outer apical angle. |

Length 3-81, breadth 14-13 millim.

Hab. Mexico (Mus. Brit.).

Two females, one found by Truqui. Extremely like B. reqularis, but with a

straighter, shorter, and much stouter rostrum, the prothorax slightly constricted in

front, and the elytral interstices bearing larger squamules, the insect in this respect

approaching B. sulcipennis, which, however, has a longer and more curved rostrum, a

more coarsely punctured prothorax, Wc.

7. Baris regularis, sp. n.

3g. Oblong, rather convex, narrow, shining, nigro-piceous, the antenne, apical margin of the elytra, tip of

the rostrum, and legs reddish; the punctures on the elytral interstices, under surface, and legs each

bearing a minute scale. Head sparsely, minutely punctate, transversely grooved between the eyes;

rostrum moderately stout, feebly arcuate, shorter than the prothorax, closely punctate. Prothorax

transverse, rounded at the sides anteriorly, very closely, coarsely punctate, with or without an

incomplete smooth median line. Soutellum small, strongly transverse, concave. Elytra considerably

wider than the prothorax, deeply punctate-striate, the interstices rather narrow, flat, regularly and

rather coarsely uniseriate-punctate throughout. Beneath closely punctate ; first ventral segment deeply

excavate down the middle. Intermediate and posterior tibie sharply dentate at the outer apical angle.

Length 22-24, breadth 1), milim.

mos

Hab. Mexico, Chilpancingo in Guerrero (HZ. H. Smith).

Three males. Near B. sulcipennis, but much smaller, narrower, and more convex,

the rostrum not so stout, the legs rufescent, the prothorax moderately coarsely punctate,

the scales on the elytral interstices minute, the elytra appearing glabrous at first

sight.

* Of. antea, pp. 425, 449, 450.

462 RHYNCHOPHORA.

8. Baris occidua, sp.n. (Tab. XXIII. figg. 2, 2a, 2.)

Oblong-ovate, narrow, convex, shining, nigro-piceous, the legs reddish and antenne (the club excepted)

rufescent ; glabrous above, the punctures on the under surface and legs each bearing a minute scale.

Head sparsely, minutely punctate, transversely grooved between the eyes; rostrum moderately stout,

arcuate, as long as the prothorax, sparsely punctate; antennal club rotundate-ovate, shining at the base.

Prothorax slightly broader than long, subcylindrical, rounded at the sides anteriorly, narrow at the apex ;

coarsely, closely punctate. Scutellum very small, transverse. Elytra a little wider than the prothorax,

gradually narrowing from the base, depressed along the suture anteriorly ; punctato-sulcate, the inter-

stices narrow, flat, each with a single row of scattered rather coarse punctures. Beneath coarsely, the

abdomen sparsely and more finely, punctate. Tibi almost straight.

Length 24-27, breadth 1,4,-11 millim. ( 9.)

Hab. Muxico, Cuernavaca in Morelos (Wickham), Omilteme in Guerrero (H. ZH.

Smith).

‘Two specimens. Narrower and relatively longer than B. regularis, the prothorax

more coarsely and less densely punctate, the elytral interstices very little wider than

the sulci and with fewer punctures, the tibize not dilated at the outer apical angle.

9. Baris fluctuosa, sp. n. (Tab. XXII. figg. 13, 13 a—-c, ¢; 14, 2.)

Ublong-ovate, broad, shining, wneous ; almost glabrous above, the punctures on the pygidium, under surface,

and legs each bearing a small'scale. Head sparsely punctate, transversely grooved between the eyes ;

rostrum stout, arcuate, shorter than the prothorax, closely punctate, smoother at the tip. Prothorax

transverse, rounded at the sides, feebly constricted and much narrowed in front; closely, coarsely

punctate, except along the smooth median line. Scutellum transverse, hollowed in the middle. Elytra

considerably wider than the prothorax, gradually narrowed from the rounded, somewhat prominent

humeri, undulate on the disc; narrowly punctato-sulcate, the interstices broad, flat, rather coarsely,

closely, irregularly biseriate-punctate. Beneath coarsely and closely, a space down the middle of the

abdomen more sparsely and finely, punctate. Tibise widened and dentate at the outer apical angle.

$. Anterior tibie strongly sinuate, hairy within (fig. 13 5); first ventral segment excavate, the fifth with a

small lamelliform prominence at the middle of the apical margin, on either side of which is a deep

semicircular emargination (fig. 13¢).

Q. Anterior tibiz toothed at the inner apical angle (fig. 1+).

Length 6-63, breadth 3-3;/5 millim. (¢ 9.)

Lab. Mxxico, Omilteme in Guerrero 8000 feet (Z/. H. Smith).

Two specimens. More elongate than B. strenua and B. sulcipennis, «neous in

colour, the rostrum almost bare and not ridged beneath, the elytra undulate, their

interstices irregularly biseriate-punctate, the punctures each bearing an excessively

minute scale, the last ventral segment of the male abruptly bi-emarginate at the apex,

much as in B. fervida.

10. Baris fervida. (Tab. XXII. figg. 15, 15a, 2.)

Baris fervida, Pasc. Ann. & Mag. Nat. Hist. (5) xvii. p. 426 (1886) *.

3. First ventral segment broadly flattened, the fifth abruptly, semicircularly notched at the apex on either

side of the transverse lamelliform median piece; tibize strongly unguiculate, without tooth at the inner

apical angle.

2. Tibie sharply dentate at the inner apical angle.

BARIS. 463

Hab. Nicaracua (Sallé), Chontales ! (Belt, Janson).

A large, shining, golden-cupreous, almost glabrous form, with a short, abruptly

bent, apically flattened rostrum, a gibbous, coarsely punctured prothorax, a rather

large, rounded, transverse scutellum, and undulate, deeply striate, coarsely punctate

elytra, the intermediate and posterior tibie straight on their outer edge, the prosternum

hollowed to receive the antenn, the mesosternum depressed, the pygidium carinate.

‘The six specimens received by us are all of the female sex; the type isa male. ‘The

S.-American B. metallescens, Boh., has similar sexual characters.

11. Baris rugosissima, sp. n. (Tab. XXII. figg. 16, 16a, 2.)

Oblong-ovate, rather dull above, shining beneath, black; the punctures on the elytral interstices, under

surface, and legs each bearing a very minute scale. Head closely punctate, transversely grooved between

the eyes; rostrum stout, short, barely as long as the prothorax, abruptly bowed from the middle, densely

punctate. Prothorax transverse, arcuately narrowing from the base, feebly constricted in front; densely

impressed with coarse, rounded punctures. Scutellum transverse. Elytra oblong, much wider than the

prothorax, strongly undulate ; deeply, sinuately punctato-sulcate, the interstices almost flat, densely,

coarsely, uniseriate-punctate, the third confusedly punctured, the ninth raised towards the apex.

Beneath coarsely and closely, the abdomen more finely, punctate. Prosternum slightly depressed along

the middle. ibis almost straight, narrow, feebly toothed at the outer apical angle.

Length 44, breadth 2 millim. (@.)

Hab. Mexico, “ Sierra de Durango” (Hége, ex Solari).

One specimen, kindly presented to us by Signor Solari. An isolated form, with

strongly undulate elytra, the punctures in the interstices as coarse as those of the

strie, the prothorax coarsely punctate, the rostrum short and strongly bowed, the

tibie narrow. B. aspera is perhaps the nearest allied Central-American species.

12. Baris zapotensis, sp. n.

Elongate-ovate, shining, black, the legs and antenne piceous or rufo-piceous; glabrous above, the punctures

on the elytra and under surface each bearing a minute scale. Head very sparsely, minutely punctate,

deeply, transversely grooved between the eyes; rostrum abruptly arcuate from the base, moderately

stout, shorter than the prothorax, sparsely, finely punctate. Prothorax transverse, abruptly narrowed

in front, the sides subparallel behind ; sparsely punctate, except along the smooth median line. Scutellum

small, rounded. Elytra a little wider than the prothorax, oblong, gradually narrowing from the rounded

humeri, feebly undulate on the disc and depressed along the suture from a little below the base to the

apex ; with sharply-cut, narrow, faintly punctured strie, the interstices broad, flat, narrowly costate

at the apex, cach with a row of minute scattered punctures. Pygidium separated from the short exposed

portion of the last dorsal segment by a sharply defined transverse suture in the ¢, entire in the 9.

Beneath sparsely punctate. Prosternum depressed along the middle. Tibiee almost; straight.

¢ . First ventral segment somewhat flattened and the fifth with the apical margin slightly thickened at the

middle.

Length 33-32, breadth 14-12 millim. (¢ 9.)

Hab. GuaTemata, Zapote, Pacific slope (Champion).

Six examples. An oblong black form, with a very short rostrum, abruptly narrowed

prothorax, a small scutellum, and sharply striate elytra, which are depressed along

464 RHYNCHOPHORA.

the suture from near the base and narrowly costate at the apex. B. atra, Kirsch,

from Colombia, is an allied, larger species, with more uneven and more coarsely

punctate-striate elytra, longer apical uncus to the tibiz in the male, &c.

13. Baris durangoana, sp. n. (Tab. XXII. figg. 17, 17a, 0, ¢; 18, 2.)

Oblong-ovate, rather dull, nigro-piceous, the antenna, tip of the rostrum, and legs reddish; the elytra

somewhat thickly clothed with very small whitish squamules, the punctures at the sides of the prothorax

and on the under surface and legs also bearing minute scales. Head sparsely, minutely punctate,

deeply, transversely grooved between the eyes; rostrum very short, moderately stout, strongly arcuate,

closely punctate throughout in the 3, smoother at the tip in the 9. Prothorax rather convex, transverse,

rounded at the sides; coarsely, closely punctate, with or without a narrow smooth median line.

Scutellum very small, subquadrate. Elytra slightly wider than the prothorax, with narrow, sharply-

cut, feebly punctured striz, the interstices flat, closely, rugosely punctate, 2 and 3 with an irregular

double row of impressions. Pygidium large, bisegmentate in the ¢ (fig. 17 6), without trace of transverse

suture in the @ (fig. 18). Beneath closely punctate ; fifth ventral segment of the ¢ arcuate-emarginate

at the apex, leaving the lower surface of the convex pygidium partly exposed. Prosternum unimpressed.

Tibie almost straight.

Length 4-44, breadth 13-2), millim. (¢ 9.)

Hab. Mexico, Presidio and Villa Lerdo in Durango ([ége).

A pair from Presidio, taken as the types, and an immature male from Villa Lerdo.

In this insect the elytral interstices are densely, rugosely punctate and somewhat

thickly clothed with very small whitish squamules. 2B. duwrangoana approaches the

Californian 5. rubripes, Casey (two males of which are before me), but it has the

prothorax more rounded at the sides, the elytra more rugose, &c. The pygidium is

equally extended in the specimens described, and in the male it is divided into two

segments by a transverse suture.

14. Baris transversa.

Baridius transversus, Say, Descr. N. Am. Curc. p. 18 (July 1831) '; Complete Writings, i

p- 282°.

Baris transversa, Casey, Anu. N. York Acad. Sci. vi. pp. 473, 487 ° *.

flab. Norta America!*, New York to Texas °.—Mexico (Mus. Brit.).

There is a specimen ( ¢ ) of a Baris in the Pascoe collection at the British Museum,

labelled “‘ Mexico,” agreeing very nearly with an insect sent me by Colonel Casey as

B. transversa, Say (= interstitials, Say),and Mr. Wickham has also forwarded examples

of it from Texas under the name B. soluta, Casey +. ‘The Mexican insect has the pro-

thorax almost as broad as the elytra, rounded at the sides, and coarsely, closely punctate ;

the scutellum small and distinctly transverse ; the elytral interstices coarsely, closely

punctate, the punctures each bearing a very small setiform scale; the rostrum short

* For the synonymy, see Casey (loc. cit.).

+ This insect will doubtless be found in Northern Mexico, as Mr. Wickham has taken it at Brownsville,

Texas just across the Rio Grande.

BARIS. 465

and abruptly bowed from the base; the prosternum somewhat deeply excavate; the

tibie almost straight; and the fifth ventral segment broadly flattened down the

middle.

15. Baris rotundicollis, sp. n. (Tab. XXII. figg. 19, 194, 2.)

Oblong-ovate, rather broad, very finely alutaceous, wneo-piceous, the legs reddish; the punctures at the sides

of the prothorax, along the elytral interstices, and on the under surface and legs each bearing a minute

setiform scale. Head minutely punctate, transversely grooved between the eyes; rostrum strongly

arcuate, moderately stout, short, finely punctate. Prothorax rather convex, much broader than long,

rounded at the sides, narrow in front; closely, rather coarsely punctate, except along the smooth median

line. Scutellum very small, rounded, concave. Elytra a little wider than the prothorax, very gradually

narrowing from the rounded humeri; narrowly, deeply striate, the stria feebly punctate, the interstices

broad, flat, 2 and 3 confusedly, the others closely and uniseriately, punctate, the ninth raised towards

the apex. Beneath closely, the median portion of the first two ventral segments more sparsely and

finely, punctate. Tibi almost straight.

Length 32, breadth 14 millim. (2.)

Hab. Mexico, San Pedro in Coahuila (Palmer).

One specimen. Smaller and less convex than B. transversa, the upper surface with

an neous lustre and not so coarsely punctured, the interstitial punctuation on the

elytra much finer. The prothorax is more rounded at the sides than in the other

allied Central-American forms.

16. Baris subrubra, sp. n. (Tab. XXII. figg. 20, 20a, 2.)

Oblong-ovate, rather convex, shining, nigro-piceous, the elytra, legs, and antenne rufescent ; almost glabrous

above, the punctures on the under surface and legs each bearing a minute scale. Head sparsely, minutely

punctate, deeply, transversely grooved between the eyes ; rostrum strongly arcuate, stout, much shorter

than the prothorax, very finely punctate. Prothorax transverse, rounded at the sides anteriorly ;

closely, somewhat coarsely punctate, except along the incomplete smooth median line. Scutellum small,

rounded-subquadrate, shallowly sulcate. Llytra a little wider than the prothorax, very gradually

narrowing from the rounded humeri; with narrow, deep, feebly punctured striz, the first (sutural)

becoming deeper from a little below the base, the interstices broad, almost flat, 2 and 3 irregularly bi-,

the others uni-, seriate-punctate, 9 raised towards the apex. Beneath closely, the abdomen sparsely,

punctate. Intermediate and posterior tibia almost straight.

Length 4, breadth 2 millim. (Q.)

Hab. Mexico (Truqut, in Mus. Brit.).

One specimen. Not unlike B. deformis, Casey, but larger and more elongate, the

upper surface more coarsely punctate, the prothorax not sinuate at the sides, the

elytra rufescent, &c. The reddish colour of the legs (like that of the elytra) is

probably not due to immaturity, several of the allied N.-American forms resembling

B. subrubra in this respect.

17. Baris cavernosa, sp.n. (Tab. XXII. fige. 21, 214, ¢.)

3. Oblong-ovate, broad, shining, eneous ; almost glabrous above, the punctures on the under surface and

legs each bearing a small scale. Head sparsely, minutely punctate, deeply, transversely grooved between

the eyes; rostrum strongly arcuate, stout, much shorter than the prothorax, closely punctate. Prothorax

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, February 1909. 300

466 RHYNCHOPHORA.

rather convex, broader than long, narrow in front, rounded at the sides anteriorly ; closely, coarsely

punctate, except along the smooth median line. Scutellum small, transverse, concave. Elytra at the

base considerably wider than the prothorax, gradually narrowing from the rather prominent rounded

humeri, strongly undulate on the disc ; deeply punctate-striate, the interstices broad, rather coarsely and

closely uniseriatie-punctate, 3 with an irregular double row of punctures. Pygidium with indications of

a transverse suture between it and the last dorsal segment. Beneath closely, the middle of the abdomen

sparsely, punctate ; first ventral segment broadly excavate, the fifth broadly arcuate-emarginate at the

apex and with a small smooth prominence in the centre of the emargination. Tibie almost straight.

Length 42, breadth 22 millim.

Hab. Mexico (Mus. Brit.).

One male, incorrectly named B. plicata, Schénh., in the British Museum. Less

elongate and smaller than in B. fluctuosa, the prothorax less rounded at the sides, the

third elytral interstice only with an irregular double row of punctures, the fifth

ventral segment (3 ) not semicircularly excised on either side of the smooth median

prominence at the apex. ‘The seriate punctures on the elytra each bear an excessively

minute scale.

18. Baris aspera, sp.n. (Tab. XXIII. figg. 3, 3a, b, ¢.)

Oblong-ovate, shining, seneous; the elytra somewhat thickly clothed with rather coarse, intermixed brown

and whitish, setiform scales (fig. 3 6), the under surface and legs with small narrow whitish, and the sides

of the prothorax with fulvous. scales. Head closely punctate, transversely grooved between the eyes ;

rostrum short and stout, strongly arcuate, not so long as the prothorax, closely punctate, smoother at the

tip. Prothorax transverse, rounded at the sides anteriorly, feebly constricted in front ; closely, coarsely

punctate, except along the smooth median line. Scutellum small, somewhat rounded. Elytra con-

siderably wider than the prothorax, gradually narrowing from the rather prominent humeri, more or

Jess undulate on the disc; narrowly striate, the interstices broad, flat, closely and somewhat coarsely

seriate-punctate, becoming transversely rugose towards the sides, 2-4 usually with an irregular double

row of impressions. Beneath closely, the abdomen sparsely, punctate. Tibiz almost straight.

3. First ventral segment slightly hollowed down the centre, the fifth with a very small subangular

prominence at the middle of the apical margin ; pygidium connate with the last dorsal segment.

Length 3-43, breadth 14-2} millim. (d 2.)

Hab. Mexico (coll. Solari); GuateMALa, Guatemala city (Salvin, Champion),

Aceytuno (Salvin), Duefias, Capetillo, Zapote (Champion) ; Costa Rica, Caché

(Rogers).

Found in numbers in Guatemala. An oblong, eneous form, with a somewhat

abundant, intermixed white and brown, setiform vestiture on the elytra, &c. In the

smaller examples there is but a single row of punctures on the elytral interstices.

The single specimen (6) from Custa Rica has a still more coarsely punctured

prothorax, and it may not really belong to the same species.

19. Baris tortilis, sp.n. (Tab. XXIII. figg. 5, 5a, °.)

Oblong-ovate, somewhat flattened above, shining, eeneo-piceous ; the punctures on the elytral interstices each

bearing an extremely minute, and those on the under surface and legs a slightly larger, setiform scale.

Head very sparsely, minutely punctate, deeply, transversely grooved between the eyes; rostrum stout,

. very short, abruptly bowed from near the base and flattened at the tip, very sparsely, minutely punctate.

BARIS. 467

Prothorax transverse, rounded at the sides anteriorly, closely, moderately coarsely punctate. Scutellum

small, transverse, concave or flattened. Elytra a little wider than the prothorax, oblong, undulate on

the disc; with narrow, deep, feebly punctured strie, which become sinuous and deeper at the apex, the

sutural stria deeply impressed from a little below the base, the interstices broad, flat, somewhat finely

and closely uniseriate-punctate (the second with a few udditional punctures), subcostate towards the tip.

Beneath closely, the abdomen more sparsely, punctate. Prosternum slightly depressed along the middle

anteriorly. Tibis almost straight, the anterior pair with a distinct tooth at the inner apical angle, ia

addition to the long apical uncus.

Length 4, breadth 2 millim. (@.)

Hab. Guatemata, Capetillo (Champion).

Two females. Closely related to B. aspera and B. cavernosa, but with the elytral

strie more deeply impressed and sinuous, and the interstices subcostate, at the apex,

the interstices more finely punctate, the anterior tibie with a distinct tooth in addition

to the usual claw. ‘The elytral vestiture is similar to that of B. cavernosa.

20. Baris inopina, sp. n. (Tab. XXIII. figg. 4, 44, 4, 2.)

Oblong-ovate, shining, seneous or sneo-piceous ; the elytra somewhat thickly (fig. 4 5), and the prothorax, under

surface, and legs a little more sparsely, clothed with decumbent setiform scales. Head closely, finely

punctate, shallowly transversely grooved between the eyes; rostrum very short, a little more than half

the length of the prothorax, feebly curved, closely punctate, smoother at the tip. Prothorax transverse,

rounded at the sides anteriorly ; densely, somewhat coarsely punctate, except along the smooth median

line. Scutellum very small, transverse or subquadrate, hollowed. Elytra a little wider than the

prothorax, with narrow, deep, feebly punctured striz, the interstices almost flat and densely, confusedly

punctured throughout. Beneath closely punctate, Tibie straight.

Length 3-34, breadth 13-13 millim. (2)

Hab. Mexico, Chilpancingo (H. H. Smith).

Two females. A small oblong-ovate form, with a very short feebly curved rostrum,

which is separated from the head by a shallow groove, and the elytral interstices

densely punctured and closely setulose. ‘The vestiture is closer and more confusedly

arranged than in the less elongate B. setosella,

21. Baris zeneopicea, sp. un.

Oblong, rather broad, somewhat flattened above, shining, eneo-piceous ; almost glabrous above, the punctures

on the under surface and legs each bearing a minute scale. Head minutely punctate, deeply transversely

grooved between the eyes; rostrum short, stout, arcuate, finely punctate. Prothorax transverse, the

sides rounded anteriorly and slightly convergent at the base ; closely, somewhat coarsely punctate, except

along the smooth median line. Scutellum small, transverse, suleate. Elytra oblong, very little wider

than the prothorax, subparallel at the base, slightly depressed along the suture ; deeply punctate-striate,

the interstices flat on the disc, much broader than the strix, the third confusedly, the others closely and

uniseriately, punctate, the ninth raised posteriorly, Beneath closely and coarsely, the abdomen more

finely and sparsely, punctate. Tibie almost straight,

Length 4, breadth 2 millim. (.)

Hab. Mexico, San Angel, Distrito Federal (Wickham).

Two females. Near B. tortidis, but with the elytra subparallel at the base, the

300 2

468 | RHYNCHOPHORA.

interstices more even, and the humeri less prominent, the prothorax more ample, &c.

More oblong than B. fratruelis, the elytra relatively narrower and with flatter

interstices; narrower than B. rotundicollis, the prothorax less rounded at the

sides, &c.

22. Baris caldaria, (Tab. XXIII. figg. 6, 6a, ¢.)

Baridius caldarius, Boh. in Schénh. Gen. Cure. viii. 1, p. 142°,

Hab. Mexico (coll. Germar!; Trugui, in Mus. Brit.).

The insect sent me from Stockholm as the type of B. caldaria (like the specimen

representing it in the British Museum) does not accord very well with Boheman’s

description, and the identification of the four examples here referred to the species is

doubtful. They are move elongate and slightly larger than B. corrusca (instead of

being “dimidio minor”); the prothorax is more rounded and somewhat ampliate at

the sides anteriorly, and has a well-defined smooth median line; the elytral interstices

are Closely and finely uniseriate-punctate, the second confusedly punctured; and the

rostrum is distinctly longer.

23. Baris implana, sp. n.

Oblong-ovate, narrow in the ¢, broader in the 2, very shining, eneous, the legs rufo-piceous or reddish ;

almost glabrous above, the punctures on the under surface and legs each bearing a minute scale. Head

minutely punctate, transversely grooved between the eyes ; rostrum strongly arcuate, short, moderately

stout, very finely, sparsely punctate. Prothorax transverse, gradually narrowing from the base, feebly

constricted in front; somewhat closely punctate, with or without a smooth abbreviated median line.

Scutellum very small, rounded. Elytra wider than the prothorax, gradually narrowing from the rounded

humeri, undulate, depressed along the suture from near the base; finely, sharply striate, the striz:

sometimes distinctly punctate, the interstices broad, flat, narrowly costate at the apex, each with a row

of scattered very minute punctures. Beneath rather sparsely punctate; metasternum and first ventral

segment hollowed in the middle in the ¢. Tibiw almost straight.

Length 23-32, breadth 11-13 millim. (¢ 9 .)

Hab. Mexico, Jalapa (Hoge: ¢ 2), Jacale, Juquila (Sailé: ¢ ).

Five specimens, the female from Juquila with the strie and outer interstices some-

what strongly punctured. A form of B. wrea, with strongly undulate, finely striate

elytra, the first (sutural) stria somewhat deeply impressed, the interstices faintly

uniseriate-punctate ; the male narrow, the female broader. ‘The elytral interstices are

narrowly costate at the apex, much as in Pseudobaris acutipennis and its allies.

24. Baris fratruelis, sp. n.

Oblong-ovate, somewhat flattened above, very finely alutaceous, shining, eneous, the legs sometimes reddish ;

almost glabrous above, the punctures on the under surface and legs each bearing a minute scale. Head

finely punctate, transversely grooved between the eyes; rostrum stout, arcuate, very short, closely

punctate. Prothorax transverse, rounded at the sides anteriorly ; closely punctate, with indications of a

smooth abbreviated median line, Scutellum small, transyerse. Elytra broader than the prothorax,

BARIS. 469

very gradually narrowing from the obtuse humeri; deeply punctate-striate, the interstices broad,

flat or feebly convex, finely uniseriate-punctate, the third confusedly punctured, the ninth raised towards

the apex. Beneath closely, the abdomen sparsely and finely, punctate; metasternum and first ventral

segment deeply excavate, and the apical margin of the fifth segment distinctly thickened in the middle,

in the g. Prosternum slightly depressed along the middle. Anterior coxe separated by less than

one-third of their own width. Tibie almost straight, the anterior pair with a long apical uncus in

the ¢.

Length 32-4, breadth 14-2 milim. (<.)

Hab. Mexico, Toxpam, Jacale (Sallé), Orizaba (1. H. Smith), Cerro de Plumas,

Oaxaca (Hoge).

Seven specimens, all males. A large, oblong form of B. wrea, with the upper

surface very finely alutaceous, the prothorax closely punctate, the elytra rather coarsely

and deeply punctate striate, the interstices sometimes feebly convex, and the ventral

excavation of the male deep. It seems to require a separate name. Bb. subsimilis,

Casey, resembles B. fratruelis, but is less oblong and has the abdomen much more

closely and coarsely punctured.

5. Baris corrusca.

ious corruscus, Boh. in Schénh. Gen. Cure. viii. 1, p. 140°.

Hab. Mexico! (Mus. Brit.), “Sierra de Durango” (f/oge, in coll. Solari ), Guanajuato

(Sallé), Yucatan (Mus. Brit.).

This insect is only separable from B. wrea by its rather more elongate form, the

more closely punctured prothorax (except along the median line) and elytra, and the

larger and more conspicuous setiform scales on the interstices of the latter. ‘The

specimens from Guanajuato seem to belong to a distinct species, while on the other

hand many of those from Guatemala city here referred to B. wrea are more or less

intermediate.

26. Baris wrea. (Tab. XXII. figg. 22, 224, 3.)

Baridius ereus, Boh. in Schénh. Gen. Cure. vii. 1, p. 141°.

Baris erea, Lec. Proc. Am. Phil. Soc. xv. p. 293%; Casey, Ann. N. York Acad. Sci. vi. pp. 474,

504°.

Baris nicaraguensis, Solari, Aun. Mus. Genova, xlii. p. 420 (1906) *.

6. The metasternum and first ventral segment more or less excavate in the middle, the fifth segment with a

slight prominence at the middle of the apical margin.

_ Hab. Nortu America, N. Carolina’, Southern States 2, Louisiana and ‘Texas °,—

Mexico; British Honpuras; Guatemara; Nicaracua+; Costa Rica; Payama, Chiriqui,

‘Yaboga I.—ANTILLES, Grenada and St. Vincent.

_ Like Pseudobaris undulata, a common insect throughout Central America, extending

northward into the Southern United States and southward to the Lesser Antilles, and

doubtless into Colombia, &c. Very long series of specimens have been obtained at

470 RHYNCHOPHORA.

Guatemala city, Teapa, Atoyac, Higuito (Costa Rica), St. Vincent, &c., and these seem

all referable to one variable species, with which B. corrusca, Boh., B. confinis, Lec.,

and B. manaquensis, Solari, may have to be included. B. erea is chiefly distinguishable

by its small size, ovate or oblong-ovate shape, eneous, shining surface, and very short,

stout, comparatively smooth rostrum ; the elytral interstices are finely seriate-punctate,

the ninth raised towards the apex, the small setiform scales varying in size, and

sometimes very minute or even wanting; and the legs and rostrum are often reddish.

The rostrum varies in length, and the prothorax is often more rounded at the sides in

the female than in the male. I have seen the types of B. corrusca, B. nicaraguensis,

and B. managuensis, as well as various examples of B. wrea from Texas. The Costa

Rican examples sent by Biolley, like those of B. setosella from the same locality

(Higuito), were labelled as having been found on a Composite plant, Calea axillaris *.

Two closely related S.-American forms have been described by Kirsch, the types of

both of which have also been examined f.

27. Baris managuensis.

Baris managuensis, Solari, Ann. Mus. Genova, xlii. p. 419 (1906) '.

Hab. Nicaragua, Tipitapa, Lake of Nicaragua (Solari +).

Described from a single example, kindly communicated by Signor Solari. This is a

form of B. wrea with the prothorax closely, coarsely punctate, and the elytral

interstices somewhat coarsely uniseriate-punctate, the punctures each bearing a very

minute scale. Some of our specimens from Guatemala city and Chilpancingo

approach it very closely.

28. Baris setosella.

Baris setosella, Solari, Ann. Mus. Genova, xi. p. 418 (1906) '.

Hab. Mexico (Truqui, in Mus. Brit.), Atoyac (H. H. Smith), Motzorongo (Osborn,

in US. Nat. Mus.); Guaremata, San Gerénimo (Champion); Nicaragua, Managua

(Solari!) ; Costa Rica, Higuito (Biolley).

This is a form of B. wrea with the prothorax and elytral interstices densely

punctured, the punctures on the elytra conspicuously setulose, the prothorax with a

more or less distinct smooth median line. The second elytral interstice is confusedly

punctured in the type and in several of the twelve specimens here referred to the same

species.

* Biol. Centr.-Am., Botany, ii. p. 205.

+ B. erubescens, Kirsch, from Bogota, is a little more elongate than B. area, and has a slightly longer and

stouter rostrum, a more convex prothorax, and deeply striate elytra, with the interstices coarsely uniseriate-

punctate. B. enescens, Kirsch, from Peru, has scattered very minute punctures along the elytral interstices.

BARIS. A471

29. Baris punctirostris, sp. n.

Oblong-ovate, very finely alutaceous, moderately shining, aneous, the tibie sometimes reddish ; the punctures

at the sides of the prothorax, along the elytral interstices, and on the under surface and legs each

bearing a very small, setiform scale. Head closely, minutely punctate, transversely grooved between the

eyes; rostrum very short, stout, arcuate, closely punctate to the tip in both sexes. Prothorax transverse,

gradually narrowing from the base, constricted in front; densely punctate, except along the smooth

median line. Scutellum small, rounded, concave. Elytra sharply, narrowly striate, the strie feebly

punctate, the first deeply impressed from a little below the base, the interstices broad, flat, closely

uniseriate-punctate, the third, and sometimes the second also, confusedly punctured, the ninth raised

towards the apex. Beneath closely punctate ; metasternum and first ventral segment hollowed in the

middle in the g¢. Tibie almost straight.

Length 3-31, breadth 13-1} millim. (¢ @.)

Hab. Guatemata, Quezaltenango 7800 feet (Champion).

Three specimens. An oblong, «neous form very near B. erea, with a closely

punctured rostrum, a densely punctured prothorax (except along the sharply-detined

median line), and closely seriate-punctate, finely setulose elytra. More elongate than

B. setosella, the elytral interstices less densely and not so coarsely punctate. More

closely punctate above (the rostrum included) than Bb. corrusca, the elytral vestiture

conspicuous.

30. Baris seriatosetosa. (Lab. XXII. figg. 23, 23 a, ¢ .)

Baris seriatosetosa, Solari, Aun. Mus. Genova, xli. p. 419 (1906) *.

Hab. Mexico, “Sierra de Durango ” 1.

A small, oblong-ovate, somewhat depressed form, w«neo-piceous in colour, with an

extremely short rostrum, a densely punctured prothorax (without trace of smooth

median line), a minute, subquadrate, smooth scutellum, and closely, finely uniseriate-

punctate elytral interstices, the punctures on the elytra each bearing a small, con-

spicuous, setiform scale. B. seriatosetosa comes very near some of the varieties of

B. erea.

31. Baris macraspis, sp.n. (Tab. XXII. figg. 24, 24a, 2.)

Subovate, shining, piceous, with a faint eneous tinge; glabrous above, the punctures on the under surface

and legs each bearing a minute scale. Head very sparsely, minutely punctate, transversely grooved

between the eyes; rostrum stout, strongly arcuate, shorter than the prothorax, flattened at the tip,

sparsely, minutely punctate. Prothorax transverse, compressed at the sides in front, sparsely, somewhat

tinely punctate. Scutellum narrowed posteriorly, oblong, small, flattened. Elytra a little wider than

the prothorax, rounded-subtriangular, depressed along the suture, narrowly striate, the interstices very

proad, flat, each with a row of extremely minute scattered punctures, the ninth raised towards the

apex. Beneath closely, the abdomen sparscly and finely, punctate. Prosternum slightly depressed

along the middle to near the base. Tibi straight.

Length 82, breadth 14 millim. (@.)

Hab. Guatemaa, Duefias (Champion).

One specimen. A subovate form, with a sparsely punctured prothorax, very broad,

472 RHYNCHOPHORA.

minutely uniseriate-punctate elytral interstices, an oblong, smooth scutellum, and a

slightly hollowed prosternum. Not unlike B. ewnescens, Kirsch, from Peru, but much

larger, the prothorax straighter at the sides, less transverse, and more sparsely

punctured, the scutellum longer, &c.

32. Baris quadratipennis, sp.n. (Tab. XXII. figg. 25, 25a, 2.)

Oblong, flattened above, shining, black; the elytral interstices each with a row of widely scattered fine

whitish sete, the punctures on the under surface and legs each bearing a minute scale. Head very

sparsely, minutely punctate, deeply, transversely grooved between the eyes; rostrum strongly arcuate,

stout, about as long as the prothorax, sparsely, finely punctate. Prothorax transverse, rounded at the

sides anteriorly, strongly constricted in front; sparsely, irregularly, and somewhat finely punctate,

except along the smooth median line. Scutellum small, widened posteriorly, subtriangular, canaliculate.

Elytra rather elongate, considerably wider than the prothorax, nearly as broad at the middle as at the

shoulders, the latter not prominent, the disc feebly transversely depressed at and below the base; with

narrow faintly punctured strie, the interstices broad, flat, each with an irregular row of fine scattered

punctures. Beneath sparsely punctate. Prosternum sulcate anteriorly, the sulcus terminating in two

oblong foveze in front. ‘ibiz straight, neither dilated nor toothed at the outer apical angle.

Length 41, breadth 2 millim. (@.)

Hab. Panama, Bugaba (Champion).

One specimen. An oblong form, with comparatively long, broad, subparallel elytra,

the interstices of which are each set with a row of fine scattered sete, a tubulate

prothorax, a subtriangular scutellum, a sulcate prosternum, a shining basal joint to

the antennal clab, and straight tibiae. This species and &. prodita approach

Pseudobaris in the form of the prosternum, but they have the basal joint of the

antennal club shining and sparsely pilose.

33. Baris prodita, sp.n. (Tab. XXII. figg. 26, 26a, 3.)

Oblong, shining, black ; the elytral interstices each with a row of scattered, fine, stiff, decumbent sete, the

‘ punctures on the under surface and legs each bearing a minute scale. Head sparsely, minutely

punctate, deeply, transversely grooved between the eyes; rostrum very stout, short, not so long as the

prothorax, strongly arcuate, almost straight beneath (as seen in profile, fig. 26a), with scattered minute

punctures. Prothorax rather convex, transverse, rounded at the sides anteriorly, strongly constricted

in front ; coarsely, closely punctate, except along the smooth median line. Scutellum large, subquadrate,

rugose. Elytra oblong, a little wider than the prothorax; sharply, narrowly punctate-striate, the

interstices broad, flat, each with a row of scattered minute punctures. Beneath closely, the abdomen

sparsely and finely, punctate ; first ventral segment flattened down the middlein the ¢. Prosternum

shallowly sulcate, the groove limited on each side anteriorly by a feeble oblique ridge. Tibi almost

straight.

Length 3-34, breadth 12-1} millim. (<¢.)

_ Hab. Mexico (ex coll. Flohr), Acapulco (Lége).

Two specimens. Smaller than B. quadratipennis ; the rostrum very stout, shorter,

strongly arcuate above and broadly flattened beneath (when viewed in profile); the

prosternal depression shallower and widened forwards ; the elytral sete more numerous ;

the scutellum larger. | '

BARIS.—ERACHYBARIS. ATS

84. Baris rubicundula, sp.n. (Tab. XXII. figg. 27, 27 a.)

Oblong, narrow, convex, shining, piceous, the elytra and legs rufessent ; almost glabrous above, the punctures

at the sides of the prothorax and on the under surface and legs each bearing a very minute scale. Head

sparsely, minutely punctate, with a smooth, shallow, transverse groove between the eyes; rostrum curved,

very stout, about as long as the prothorax, slightly widened towards the tip, sparsely, finely punctate.

Prothorax transverse, distinctly narrowed behind, the sides gradually and obliquely converging forwards

to the constricted apical portion ; closely punctate, with indications of a smooth median line. Scutellum

small, transverse. Elytra a little wider than the prothorax, subparailel in their basal half and arcuately

narrowing thence to the apex, the humeri obtuse; sharply and narrowly punctate-striate, the interstices

broad and flat on the disc, narrowly costate at the apex, each with a row of extremely minute scattered

punctures. Pygidium short, vertical. Beneath closely, the abdomen more sparsely and finely, punctate.

Prosternum unimpressed behind the transverse subapical groove. Anterior cox rather small, separated

by a little more than their own width. Legs short ; tibixe almost straight, the anterior pair with a short

tooth at the inner apical angle; tarsal claws very small, free.

Length 24, breadth 1, millim. (@ ?)

Hab. British Honpuras, Rio Hondo (Llancaneaua).

One specimen. A small, narrow, convex, rufescent form, with the upper surface

polished and almost glabrous, the prothorax distinctly narrowed at the base, the

elytral interstices narrowly costate at the apex, the pygidium very short. It is not

closely related to any of the other species here described, and bears a certain resemblance

to the N.-American lesiobaris albilatus, Lec.

BRACHYBARIS.

Brachybaris, Faust, Deutsche ent. Zeitschr. 1886, p. 3871.

This genus includes a small, short-ovate, compact, eneo-piceous form, with the

prothorax margined at the sides *, and deeply excavate and smooth on the flanks, the

rostrum stout and extremely short, the basal joint of the antennal club shining, the

eyes very large and almost contiguous beneath, the anterior tibize bi-unguiculate in the

male (fig. 28 0) and uni-unguiculate in the female, the prosternum shallowly sulcate,

the tarsal claws minute and free, the pygidium very large and oblique in the male,

smaller, transverse, and convex in the female.

1. Brachybaris mutila. (Tab. XXII. figg. 28, 28 @, 6, 3.)

Baridius mutilus, Boh. in Schénh. Gen. Cure. vill. 1, p. 149°.

Brachybaris mexicanus, Faust, Deutsche ent. Zeitschr. 1886, p. 372 -

Hab. Mexico? (Truqui, in Mus. Brit.), Ventanas in Durango (Hoge: ¢ ?); Britis

Honpuras, Rio Hondo (Blancaneaua); Nicaragua, Chinandega (Baker: ¢ 2 ).—

CoLomBIa ?.

We hare received six examples of this species, agreeing with the types of Boheman

* Baridius thoracicus, Kirsch, from Peru, has a somewhat similarly margined prothorax, but in that insect

the pygidium is covered by the elytra, &c.; it will probably have to form the type of a uew genus of

“ Centrinides.”

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, April 1909. 3 PP

AT4 RHYNCHOPHORA.

and Faust, both of which I have examined. There is a specimen of it in the British

Museum labelled as from “California,” and doing duty for Baridius californicus,

Motsch. *.

BRACHYBARIDIUS, gen. nov.

Rostrum very stout, strongly arcuate, the scrobes descending towards the base and continued forwards to near

the tip, the antenne inserted at about the basal third, the joints 2-7 of the funiculus short and closely

articulated, the club oblong-ovate and pubescent ; eyes transverse ; prothorax with the base oblique and

feebly sinuate on each side of the short, truncate, median lobe; scutellum rounded, free, flat, on a level

with the surrounding surface ; elytra rounded-triangular, the sides forming an almost continuous outline

with those of the prothorax, the apices separately rounded; pygidium exposed, declivous, convex ;

prosternum shallowly sulcate, the basal process flattened, truncate behind, leaving the mesosternum

narrowly exposed ; anterior cox deeply inserted, rather small, separated by about their own width;

ventral segments 1 and 2 connate; legs very short; femora stout, compressed, shallowly sulcate, unarmed ;

tibie flattened, uni-unguiculate; tarsal claws minute, connate at the base; body short-ovate, convex,

compact, glabrous above.

Type, B. immarginatus.

The single species referred to this genus has exactly the facies of Brachybaris

(7. ¢. it has the compact form of the N.-American Pachybaris, Lec.); but the prothorax

is not margined at the sides, the scutellum is larger, and the rostrum, eyes, and antenn

are differently formed. ‘The rostrum is longer, the base of the prothorax is more

oblique on each side, and the scutellum more raised, than in the insects here placed

under Baris. The unique type of B. immarginatus is from the Atlantic coast of

Guatemala, and belongs to the U.S. National Museum.

1. Brachybaridius immarginatus, sp. n. (Tab. XXII. figg. 29, 29a, ¢.)

¢. Aineo-piceous, shining, the punctures on the under surface and legs each bearing a very minute scale.

Head faintly punctulate ; rostrum as long as the prothorax, separated from the head by a transverse

groove, finely punctate at the base. Prothorax strongly transverse, narrowing from the base, slightly

constricted in front ; somewhat closely punctate. Elytra shallowly and narrowly crenate-striate, the

interstices flat and finely, transversely wrinkled. Beneath very coarsely, the ventral segments 2-5

sparsely and finely, punctate, the first segment hollowed in the middle.

Length 22, breadth 12 millim.

Hab. Guatemaa, Livingston (barber & Schwarz, in U.S. Nat. Mus.).

One male, labelled as having been found on May 9th.

NANOBARIS, gen. nov.

Mandibles short, decussate ; rostrum separated from the head by a deep transverse groove, stout, moderately

long, strongly arcuate, the antenne inserted at the middle, the antennal club stout, ovate, and densely

pubescent, much wider than the outer joints of the 7-jointed funiculus; prothorax transverse, small,

bisinuate at the base; scutellum free, transverse ; elytra short, very much wider than the prothorax,

rather convex, blunt at the apex, finely striate, setose; pygidium exposed, convex, subvertical ;

prosternum narrowly sulcate, the basal process short ; anterior cox separated by nearly their own

* According to Casey (Ann. N. York Acad. vi. p. 683), this species is possibly synonymous with Centrinus

(Limnobaris) nasutus, Lec.

NANOBARIS.—TYTTHOBARIS. AT5

width; legs short; femora unarmed, shallowly sulcate; tibiw feebly unguiculate ; tarsal claws long,

subconnate at the base; body short-ovate.

Type, VV. plumbata.

A genus including two very small closely-allied forms, distinguishable by their small

prothorax, broad, retuse, setose elytra, arcuate, moderately long rostrum, abrupt

antennal club, and narrowly sulcate prosternum.

1. Nanobaris plumbata, sp.n. (Tab. XXII. figg. 30, 30 a, 3.)

Leaden-black, above and beneath opaque and alutaceous; the elytral interstices each with a row of closely-

placed, cinereous, semiercct sete, the punctures on the rest of the surface each bearing a minute hair-like

scale. Head minutely punctate ; rostrum very stout, about as long as the head and prothorax, closely,

finely punctate. Prothorax much broader than long, the sides parallel behind and rounded anteriorly ;

densely, very finely punctate. Elytra areuately narrowing from about the middle, very finely and

shallowly punctate-striate, the interstices broad and flat throughout, closely and finely uniseriate-punctate.

Beneath finely punctate; fifth ventral segment, broadly arcuate-emarginate, leaving the transverse

pygidium exposed ventrally, in the ¢. Prosternum shallowly sulcate from the transverse subapical

groove to between the coxe.

Length 2-21,, breadth 1-175 millim. (¢ @.)

Hab. Mexico, Vapachula in Chiapas (Hoge); Panama, Volcan de Chiriqui 3000 tect

(Champion).

Five specimens, all but one from Chiriqui, Easily recognizable by its leaden-black,

opaque surface and strongly setose elytra.

2. Nanobaris retusa, sp. n.

Nigro-piceous, somewhat shining; the elytral interstices each with a row of closely-placed, cinereous, semi-

erect setee, the punctures on the rest of the surface each bearing a minute hair-likescale. Head minutely

punctate; rostrum moderately stout, as long as the head and prothorax, very finely punctate. Prothorax

densely, finely punctate. Elytra Snely punctate-striate, the interstices broad, flat, closely and finely

uniseriate-punctate. Beneath closely and finely, the ventral segments 1-4 with the broad shining space

down the middle sparsely, punctate. Prosternal sulcus deep and extending forward to the apex.

Length 2,,-22, breadth 14-15 millim. (9.)

Hab. Mexico, Cordova (Knab, in U.S. Nat. Mus.), Teapa (If. Hf. Smith) ; Guatemaa,

San Juan in Vera Paz (Champion).

‘Three specimens, the one from Cordova a little more shining than the others. ‘This

is the Atlantic-slope representative of NV. plumbata, differing from that insect in its

somewhat shining surface, deeper prosternal suicus, and more distinctly striate

elytra.

TYTTHOBARIS, gen. nov.

Mandibles short, decussate ; rostrum strongly arcuate, stout, as long as the prothorax, separated from the head

by a transverse groove ; antenne with a small, oblong-ovate, densely pubescent club, the tuniculus

7-jointed and closely articulated ; eyes rather small; prothorax narrow, bisinuate at the base; scutellum

very small, free, rounded ; elytra much wider than the prothorax, oblong, conjointly rounded at the tip ;

pygidium vertical, very short ; prosternum deeply bifoveate near the apex and also narrowly sulcate ;

3PP2

476 ' RHYNCHOPHORA.

anterior coxw separated by less than their own width; legs short ; femora sulcate, the anterior pair

with a broad, deep, subapical excavation limited inwards by a short tooth (fig. 31); tibiee more or less

curved, strongly unguiculate; tarsi short, the claws minute, connate at the base ; body oblong-ovate,

polished and glabrous above.

Type, 7’. cavimanus. —

The minute species placed under this genus is related to Pseudobaris, but cannot

possibly be included in it. The bifoveate, sulcate prosternum, the minute, basally

connate tarsal claws, the somewhat bowed tibiz, the deeply excavate, feebly dentate

anterior femora, and the small, oblong-ovate antennal club are its chief characters.

Tytthobaris approaches Nanobaris, but differs from it in the form of the claws, tibie,

and femora, the narrower antennal club, the bifoveate prosternum, &c. Jicrobaris,

Casey, including a single species from Texas, seems to be an allied genus.

1. Tytthobaris cavimanus, sp.n. (Tab. XXII. figg. 31, 81a, 6, 2.)

Black, shining, glabrous above, the punctures on the under surface and legs each having a minute scale. Head

minutely punctate; rostrum closely punctate, smoother at the tip. Prothorax rather convex, a little

broader than long, gradually narrowing from near the base, feebly constricted in front; closely, coarsely

punctate, smoother along the anterior margin. Elytra subparallel in their basal fourth, about twice as

long as the prothorax, transversely depressed on the outer part of the disc below the base, the suture

depressed anteriorly; very finely punctate-striate, the stria becoming broader and strongly punctured at

the base, the interstices broad, flat, each with a row of very minute scattered punctures. Beneath closely

and coarsely, the abdomen very sparsely and finely, punctate. Intermediate tibie strongly, the others

more feebly, arcuate.

Length 2;4,, breadth 1 millim. ( 9.)

Hab. GuaTEMALA, San Juan in Vera Paz (Champion).

One specimen, easily recognizable by the coarsely-punctured prothorax, the polished,

finely striate elytra, the bowed intermediate tibiz, and the toothed, broadly excavate,

anterior femora, the tooth arising nearer the base than usual amongst the Barids.

CYRTOBARIS, gen. nov.

Rostrum very stout, abruptly bowed from the base, as long as the prothorax, separated from the head by a

deep transverse groove; antenne with a densely pubescent, elongate-ovate club, which is nearly as long

as the funiculus, the joints 2-7 of the latter closely articulated, widening outwards, and strongly trans-

verse; prothorax deeply sinuate at the base, the median lobe subtruncate; scutellum small, oblong, free ;

elytra very broad, short, rounded-triangular, conjointly rounded at the apex; pygidium short, strongly

transverse, vertical ; prosternum shallowly sulcate, deeply bifoveate anteriorly ; anterior coxe separated

by a little less than their own width, flattened within; intermediate coxw widely separated ; legs short,

stout; femora compressed, unarmed, sulcate ; tibie almost straight ; tarsi with the third joint broad and

bilobed, the fourth slender, the claws minute, subconnate at the base; body short, rhomboid-ovate,

subglabrous.

Type, C. bigibba.

This genus is perhaps nearest related to Nancbaris. It includes a single species, of

small size, from Panama.

CYRTOBARIS.— LITOBARIS. ATT

1. Cyrtobaris bigibba, sp. n. (Tab. XXII. figg. 32, 32.)

Black, opaque and alataceous above, the rostrum and abdomen shining; the punctures on the under surface

and legs each bearing a very minute scale. Head finely punctate; rostrum (as seen in profile) arcuate

above and flattened beneath, strigoso-punctate, smoother at the tip, the antenne inserted at about the

basal third. Prothorax much broader than long, conical, transversely gibbous at the middle of the disc ;

densely punctate. Elytra compressed at the sides anteriorly and rapidly narrowing thence to the broadly-

rounded apex, transversely gibbous below the base ; finely punctate-striate, the stria becoming broader

and more coarsely punctured anteriorly, the interstices broad, flat, narrowed towards the base, transversely

rugulose, and faintly uniseriate-punctate. Beneath finely punctate.

Length 2, breadth 1$ millim. (¢?)

Hab. Panama, Bugaba (Champion).

One specimen.

LITOBARIS, gen. nov.

Mandibles short, decussate; rostrum abruptly bowed from the base, separated from the head by a transverse

groove, moderately long ; antennal club acuminate-ovate, densely pubescent ; prothorax feebly bisinuate

at the base, the median lobe short; scutellum very small, rounded, free; elytra somewhat oval, conjointly

rounded at the apex; pygidium very short, inflexed, ventrally exposed ; prosternum slightly depressed

down the middle, without definite sulcus; anterior cox separated by less than their own width; legs

short; femora unarmed; tibiew almost straight, feebly unguiculate; tarsi with the third joint narrowly

bilobed, the claws connate at the base; body oblong, narrow, convex, sparsely clothed with minute

scales.

Type, L. subpruinosa.

This genus is based upon a Mexican insect nearly related to Pseudobaris, with a

short, inflexed, ventrally exposed pygidium, basally connate claws, an indefinitely

grooved prosternum, and a feebly-lobed prothorax. Litobaris has very much the

facies of Limnobaris confusa and its allies, from which it is readily separated by the

exposed pygidium. repobaris has a similarly shaped prothorax, but differs in the

form of the scutellum, &c.

1. Litobaris subpruinosa, sp.n. (Tab. XXII. figg. 33, 33 a, 6, ¢.)

Shining, nigro-piceous, the legs rufescent ; the punctures on the prothorax, elytral interstices, under surface,

and legs each bearing a minute scale. Head closely, finely punctate ; rostrum moderately stout, a little

longer than the prothorax, closely punctate at the sides, smooth along the centre above, the antenne

inserted at about the middle. Prothorax transverse, gradually narrowing from near the base, feebly

constricted in frout; densely punctate, with indications of a smooth median line. Elytra a little wider

than the prothorax, subparallel at the base, the humeri obtuse ; shallowly punctate-striate (the punctures

closely placed towards the base), the interstices broad, flat, the second and third confusedly, and the

others densely and uniseriately punctate, the interstitial punctures rounded and coarser than those of the

strie. Beneath closely punctate; first ventral segment flattened down the middle, the fifth almost on

the same plane as the short. ventrally-exposed pygidium. Femora and tibie rugulosely punctured.

Length 28, breadth 13 millim. (¢.)

Hab. Mexico, “Sierra de Durango” (Zége, ex coll. Solart).

One specimen. The elytral striae in this insect are narrow and shallow, and the

interstices are densely and rather coarsely seriate-punctate.

478

RHYNCHOPHORA.

OLIGOBARIS, gen. nov.

Mandibles long, notched within, decussate at the tip, oblique on their outer edge; rostrum long, stout,

arcuate, separated from the head by a transverse sulcus; antenne (fig. 34 a*) with a stout, oblong-ovate,

acuminate, densely pubescent club, which is about as long as the funiculus, the latter with joints 2-7

widening outwards and strongly transverse ; eyes very large ; prothorax broad, subtubulate in front, deeply

pisinuate at the base, the median lobe rounded, impinging on the scutellum, and margined behind, the

exposed portion of the latter arcuate and strongly transverse ; elytra suboval ; pygidium very large,

convex, vertical, truncating the fifth ventral segment beneath; prosternum completely unimpressed

behind the transverse subapical groove; anterior coxe separated by about their own width ; legs rather

elongate; femora feebly clavate, sulcate, unarmed; tibie almost straight, with a slender apical uncus ;

tarsi with the third joint narrowly bilobed, the claws long and divergent; body oblong-ovate, densely

squamose beneath, setulose above.

Type, O. breviseutum.

This genus includes a single small species from Panama. Its essential characters

are:—the unimpressed prosternum, the incompletely exposed, broad, arcuate scutellum,

the

stout, elongate antennal club, the comparatively long, apically decussate mandibles,

very large, convex pygidium, and the long, divergent tarsal claws. Oligobaris has

more the facies of a Centrinid than of a true Barid.

1. Oligobaris breviscutum, sp. n. (Tab. XXII. figg. 34, 34a, b, ¢.)

Rather convex, shining, the tarsi and antenne ferruginous or fusco-ferruginous ; the sides of the prothorax

-and the elytra clothed with very small, white, setiform, adpressed scales, those on the elytra arranged in

a single close series down each interstice, the series becoming doubled or trebled towards the base of 2-4 ;

the under surface densely clothed with larger, oblong, white scales. Head densely, finely punctate ;

rostrum fully as long as the head and prothorax, densely punctured, the antenus inserted at a little

below the middle. Prothorax strongly transverse, rounded at the sides anteriorly, strongly constricted

in front; closely punctate, except along the smooth median line. LElytra very little wider than the

prothorax, gradually narrowing from the base, depressed along the suture ; finely and shallowly punctate-

striate, the interstices broad, flat, closely, transversely rugose and feebly seriate-punctate. Beneath

densely punctate.

Length 22, breadth 1;4;-1} millim. (¢.)

Hab, Paxama, David in Chiriqui (Champion).

Two specimens, evidently males. ‘The vestiture of the under surface in this insect

is denser and coarser beneath, as in many Centrinids.

* Numbered 34 6 at the bottom of the Plate.

SUPPLEMENT.

During the course of publication of the preceding pages of this volume the numerous

Mexican and Central-American Barids belonging to the U.S. National Museum at

Washington have been submitted to me for examination, most of these, fortunately,

having been received in time to be included in their proper place. Mr. H. F.

Wickham, too, has forwarded the material in this group obtained by him in Mexico

during the past year, allowing us to retain such forms as were required. His con-

signment has added a considerable number of species and three genera (Orthoris,

Leptoschenus *, and a new one related to Centrinites) to our long list of Baridsf. Of

the ten species of this group found by Mr. H. H. Smith in the Antillean islands of

St. Vincent and Grenada, three have already been incidentally noticed (anted, pp. 202,

274, 379); the rest of them are noted in the text or described in footnotes in this

Supplement.

ZYGOPINA.

CYLINDROCOPTURUS (p. 35).

Cylindrocopturus scaphiformis (p. 41).

To the Mexican localities given, add :—Gonzales (Wickham).

COPTURUS (p. 69).

1(a). Copturus fausti. (Tab. XXIII. figg. 7, 74, 3.)

Copturus (Macrocopturus) faustt, Heller, Abhandl. Mus. Dresden, no. 11, p. 24°.

Hab. Costa Rica (Biolley, ex coll. Solari).—Prru !, Chamicuros (Mus. Brit.).

Signor Solari has sent us a specimen (¢) of this species labelled as from Costa

Rica. It is a large, robust form allied to C. martw, with the upper surface shining

and marked with numerous, sharply defined, albo-squamose spots—five or six on the

prothorax and about sixteen on the elytra (including two common larger patches on

the suture); the elytra closely seriato-foveolate, and mucronate at the apex; the under

surface densely albo-squamose ; the first ventral segment broadly depressed down the

middle in the male.

-* Hitherto recorded as doubtfully Mexican (¢f. antea, p. 329).

+ It may be noted here that Oligopus pellitus, Kirsch (Deutsche ent. Zeitschr. 1875, p. 279), from Peru,

described as a Cossonid, the type of which I have recently examined, isa tiue Barid, with an exposed

pygidium, allied to Pithecomus, Pase., and Glyptobaris, Casey.

480 SUPPLEMENT.

Copturus fulvocruciatus (p. $2).

To the localities given, add :—Nicaragua, Managua (Solart).

95 (a). Copturus cribricollis, sp.n. (Tab. XXIII. figg. 8, 8a.)

Elliptic, nigro-piceous ; variegated with scattered patches of small, narrow, cinereous scales, the scales on the

prothorax clustered into various coalescent irregular markings at the sides, a large spot in the middle at

the base, and a small one in a line with it at the apex, those on the elytra condensed into a posteriorly

interrupted sutural stripe, a broad common transverse patch at the base, a narrower one just beyond the

middle, two much interrupted fascia in a line with these externally, and a small patch on the margin

near the apex; the vestiture of the under surface much coarser, whitish, that of the legs rather fine,

close, and whitish, the posterior femora with a bare space near the apex. Eyes very large, narrowly

separated. Rostrum shorter than the head and prothorax, rugulose and carinate at the base. Second

joint of the funiculus very elongate, nearly as long as 3-6 united. Prothorax short, coarsely, densely

punctate. Elytra much wider than the prothorax, somewhat rounded at the sides, separately rounded at

the apex; rather coarsely punctate-striate, the interstices densely, transversely rugose, becoming convex

towards the sides. Meso- and metasternum slightly depressed between the middle ccxe. Legs short ;

femora sharply unidentate.

Length 34, breadth 1%, millim.

Hab. Costa Rica, Higuito, Pacific slope (Biolley).

One specimen. Near C. ludiosus, but with the vestiture finer, the markings of the

prothorax and elytra uniformly cinereous, the sutural stripe interrupted near the apex

only, the two common transverse patches sharply defined, the rostrum shorter. ‘The

coarsely punctured prothorax and elytral strie, the annulate posterior femora, &c.,

separate C. cribricollis from C. multiguttatus.

LECHRIOPS (p. 91).

9 (s). Lechriops erythrorrhynchus, sp. n. (Tab. XXIII. figg. 9, 9a, 10.)

Subovate, black, the prothorax and the femora in part piceous, the rostrum and antenne ferruginous, the

tarsi fusco-ferruginous ; the vestiture fine, yellowish-white, intermixed with black on the elytra, that on

the prothorax condensed into three interrupted vitte, the pallid scales on the elytra condensed into an

interrupted sutural stripe, which becomes denser and whiter on an oblong space just beyond the middle,

and numerous streaks and spots, the posterior femora with a bare annulus towards the apex; the under

surface densely and uniformly clothed with yellowish-white scales. Eyes very large, narrowly separated.

Rostrum shining, rugulosely punctate and carinate at the base. Joint 2 of the funiculus elongate, nearly

as long as 3-6 united, 3 and 4 equal in length. Prothorax short, narrowing from the base, densely,

rather coarsely punctate. Elytra broadly subcordate, blunt at the apex, depressed along the suture at

the base ; finely punctate-striate, the interstices densely rugulose. Rostral canal extending to the front

of the metasternum, Legs short; femora sharply dentate ; intermediate and posterior knees dentate.

Length 34-32, breadth 2 millim.

Hab. Nicaragua, Managua (Solazi).

Two specimens, kindly presented by Signor Solari. The elytral markings are

variable, one example having the interstices 2-4 streaked (like the suture) with

yellowish-white scales and the spots on the disc more extended than in the other.

Near L. rufomaculatus, but not very closely related to that or any other species

described in this work.

RHYNCHOPHORA. A481

Lechriops festivus (p. 107).

To the localities given, add :—Nicaracua, Managua (Solar‘).

Specimens of this species, and of L. infimus, Boh., have been sent us by Signor Solari

from Managua.

PHILIDES (p. 129).

2. Philides comans, sp.n. (Tab. XXIII. figg. 11, lla, 4, 3.)

Larger, broader, and more robust than P. anthonomoides; the erect bristly vestiture longer, coarser, and

whiter, the imbricate white hairs along the suture more numerous ; the pectinate white scales at the base

of the prothorax confined to a narrower space, but extending forward along the middle of the disc to the

anterior margin and backward along the basal portion of the suture; the rostrum much stouter, thickly

clothed with white hairs to the tip, closely punctate and finely carinate, the antenne inserted at a little

beyond the middle, joint 2 of the funiculus slightly longer than 3; the legs stouter and more hairy ; the

prothorax more convex, less densely and more coarsely punctate, the narrow interspaces shining; the

elytra with broader and deeper striae and broader interstices, the latter with a scattered series of rather

coarse transverse setigerous impressions and minute irregularly distributed punctures; metasternum with

a polished, deep, rounded excavation in the middle at the apex ; ventral segments 1-4 sparsely squamose

down the centre, 2 widened at the middle and somewhat raised posteriorly, 3 and 4 appearing depressed

- to near the sides, 5 unimpressed at the apex *.

Length 3, breadth 13 millim. (¢-)

Hab. Mexico, ‘Sierra de Durango” (Hége, ex coll. Solari).

Two specimens. It is not impossible that this Mexican insect may be the male of

the Panama P. anthonomoides, and that the type of the latter is a female; but the

differences are too numerous to be purely sexual.

BARINA.

AMBATES (p. 155).

Ambates cretifer, var. (p. 156).

To the localities given, add :—Costa Rica, Guapiles (Schaus, in U.S. Nat. Mus.).

A second specimen of the variety has now been seen.

5 (a). Ambates isthmicola, sp. n. (Tab. XXIII. figg. 12, 12a, ¢.)

Flongate-ovate, flattened above, piceous, the antenne (the club excepted) and legs (the apices of the femora

excepted) rufo-testaceous, the rostrum rufous in one specimen; above and beneath densely clothed with

small scales, the head on each side between the eyes, the prothorax and elytra each with a broad sub-

marginal vitta, which is constricted near the apex, the former also with an abbreviated median line and

the latter with some scattered patches along the stria, sulphur-yellow, the rest of the vestiture of the

upper surface blackish, that of the under surface coarser and denser and uniformly yellowish-white; the

* The unique type of P. anthonomoides has a transverse almost bare depression at the apex of the fifth

segment, not mentioned in the description.

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, April 1909. 3QQ

482 SUPPLEMENT.

legs sparsely squamose. Head densely punctate, feebly foveate between. the eyes; rostrum curved,

moderately stout, about as long as the head and prothorax, shining, very sparsely, finely punctate,

rugulosely punctured laterally at the base. Prothorax transverse, arcuately narrowing from the base,

strongly constricted in front; densely, finely punctate. Elytra transversely depressed on the dise below

the base, finely punctate-striate, the interstices densely, rugulosely punctate. Beneath densely punctate ;

first ventral segment broadly and shallowly depressed down the middle, the fifth with a smooth shallow

fovea near the apex.

Length 7;1,-74, breadth 2,®,-3 millim. (d.)

Hab. Panama, Tabernilla, Canal Zone (Busch, in U.S. Nat. Mus.).

Two specimens. Near A. leucopleura and A. latevittatus, but differing from both

of them in the uniformly squamose under surface, the broad sulphur-yellow sub-

marginal stripe, the transversely depressed elytra, and the comparatively smooth

rostrum and shallowly sulcate first ventral segment.

Ambates sinuatus (p. 159).

To the locality given, add:—Costa Rica, Tucurrique (U.S. Nat. Mus.).

Ambates biguttatus (p. 164). |

To the localities given, add:—GuatemaLa, Trece Aguas in Alta Vera Paz (Barber &

Schwarz, in U.S. Nat. Mus.).

Ambates solani (p. 166).

To the localities given, add :—Guatemata, Trece Aguas (Barber & Schwarz, in U.S.

Nat. Mus.) ; Costa Rica, San Carlos, Turrialba, Tucurrique (U.S. Nat. Mus.).

Ambates scutiger (p. 167).

To the Guatemalan locality given, add:—Trece Aguas (Barber & Schwarz, in US.

Nat. Mus.: ¢ ).

Described from a single female from the opposite side of the Polochic Valley. The

male has the rostrum closely punctured and squamose to near the tip, the antenne

inserted nearer the apex, and the first ventral segment slightly depressed down the

middle. ‘The vestiture is precisely similar in colour in the two specimens. An allied

form occurs in the Lesser Antilles *.

* Ambates lateralis, sp. n.

Elongate, opaque, piceous, the antenne (the club excepted) and tarsi ferruginous ; thickly clothed with

intermixed fulvous and brown scales, and also with a few small scattered white spots along the elytral

strie, and some larger ones on the sides of the body beneath and on the outer face of the posterior

femora; the prothorax with the sides (leaving a large triangular dark space on the disc), flanks, and

"under surface (a transverse patch opposite the eyes excepted) almost wholly white, and the elytra with

an irregular, oblique or subtriangular, dark velvety patch on the inner part of the disc before the middle ;

the vestiture of the head, and that of the rest of the under surface and legs, fulvous slightly intermixed

with white, the tarsi with ochreous hairs. Head densely punctate, depressed and faintly sulcate between

RHYNCHOPHORA. 483

Ambates albiventris (p. 169).

To the Costa Rican locality given, add :—Turrialba, San Carlos (U.S. Nat. Mus.).

Two males and two females. In fresh specimens the elytra have numerous, small,

more or less distinct patches of yellowish-white scales along the strie. ‘The meso-

sternal side-pieces and the sides of the first ventral segment are apparently always bare

or sparsely squamose (so that the oblique lateral yellowish-white patch on the elytra

may be said to be continued broadly downwards on to the metasternum). ‘The

rostrum of the female is a little longer and more slender than in the male, and almost

smooth from about the basal third. Described from a single somewhat worn male.

34. Ambates chetopus, sp.n. (Tab. XXIII. figg. 15, 13a, 2 .)

Elongate-rhomboidal, rather broad, flattened above, black, the antennee (the club excepted) and the tip of the

rostrum rufous, the tarsi rufo-testaceous ; above somewhat thickly clothed with small blackish, yellowish-

white, and ochreous scales, the ochreous scales condensed into a narrow, oblique, evanescent, submarginal

vitta or line on the prothorax, which is continued forward on to the sides of the head, and an elongate-

triangular patch at the apex of each elytron, the paler scales clustered into numerous small irregular spots

along the strie ; the vestiture of the under surface ochreous or pale ochreous, very dense, sparser along

the middle of the metasternum and abdomen; the tarsi strongly fulvo-setose in both sexes. Head

rugulosely punctate; rostrum feebly curved, rather slender, considerably longer than the head and

prothorax, very sparsely, finely punctate, in the 2 more elongate, slender, and almost smooth from about

the basal fourth, the antenne inserted far behind the middle in both sexes. Prothorax transverse,

conica], constricted in front; densely, finely, confluently punctate, with a smooth, raised median line

anteriorly. Elytra elongate-triangular, much wider than the prothorax; finely punctate-striate, the

interstices densely, rugulosely punctate, the ninth narrowly costate for some distance below the base.

Beneath densely punctate.

$. Ventral segments 1 and 2 broadly hollowed, smoother, and sparsely squamose down the middle; tarsi

slightly dilated and densely clothed with long, fulvous, bristly hairs ; anterior tibixe fulvo-ciliate at the

apex within.

Length 94-10, breadth 4-41 millim. (d @.)

Hab. Costa Rica, Carrillo, San Carlos (U.S. Nat. Mus ).

the eyes; rostrum moderately stout, curved, a little longer than the bead and prothorax, densely

punctate and finely carinate in its basal half, and sparsely punctate and shining thence to the tip, in the

Q slightly smoother, the antenne slender and inserted at about the middle. Prothorax strongly

transverse, constricted and arcuately narrowed in front ; densely, finely punctate, and sometimes with

indications of a raised median line. Elytra much wider than the prothorax, clongate-triangular,

obliquely depressed on the dise below the base, and with prominent subapical eallosities ; finely punctate-

striate, the interstices flat and densely, finely punctate. Beneath densely punctate, the ventral segments

3 and 4 with a smoother space in the middle, Femora sharply dentate. Length 73-8, breadth 31-34

millim.

Hab. Sr. Vixceyt, Windward side, 1000 feet (IT. H. Smith).

Five specimens, found on foliage, one with intermixed fulvous and white scales on the sides of the prothorax

(? somewhat abraded). Larger and broader than A. scutiyer, the sides of the prothorax white, the dark patch

on the elytra placed nearer the base, the rostrum and antenn more slender, &c. More elongate than

3902

A. ornativentris, the vestiture differently coloured.

484. SUPPLEMENT.

One pair, the male from Carrillo captured by Mr. Lankester. This species is not

closely related to any of those described in this work, and it is remarkable on account

of the fulyo-setose tarsi and the long slender rostrum in both sexes. The oblique

submarginal vitta on the prothorax is almost obsolete in one specimen (¢ ).

PROCHOLUS.

Pseudocholus, Desbrochers, Ann. Soc. Ent. Belg. 1. p. 366 (1906) (nec Lacord.).

Procholus, Desbrochers, op. cit. li. p. 7 (Jan. 1907).

Pseudambates, Champion, antea, p. 171 (Feb. 1907); Ann. Soc. Ent. Belg. lii. p. 112.

Sphalerocholus, Heller, Deutsche ent. Zeitschr. 1908, p. 59.

1. Procholus biplagiatus.

Pseudambates biplagiatus, antea, p. 171, t. 9. figg. 10, 10 a.

To the Costa Rican localities given, add :—Guapiles (Schaus, in U.S. Nat. Mus.).

PERIDINETUS (p. 171).

Peridinetus canus (p. 172).

To the localities given, add :—Costa Rica, Piedras Negras (U.S. Nat. Mus.).

Peridinetus cretaceus (p. 173).

To the localities given, add:—Costa Rica, Puerto Limon, Turrialba, Carrillo (U.S.

Nat. Mus.).

Peridinetus irroratus (p. 175).

To the localities given, add :—Cosra Rica, Banana River, Zeut, San Carlos (U.S.

Nat. Mus.) ; Panama, Lion Hill (Busch, in U.S. Nat. Mus.).

CYRIONYX (p. 188).

Cyrionyx camelus (p. 195).

To the localities given, add:—Cosra Rica, Esparta (Knad, in U.S. Nat. Mus.).

26 (a). Cyrionyx albovarius, sp. n.

Subrhomboidal, piceous, the antenne, tip of the rostrum, and legs obscure ferruginous ; variegated above

with a somewhat dense clothing of dull purplish-brown and white scales, the white scales on the pro-

thorax condensed into a broad, oblique, sinuous vitta on each side, and those on the elytra into numerous

scattered patches, one on the fourth interstice before the middle being the most conspicuous; the under

surface and legs albo-squamose. Head densely punctate and squamose ; rostrum curved, a little longer

than the head and prothorax, rather slender, thickened, rugulosely punctate, and subcarinate towards the

base, the antenne inserted at the middle. Prothorax short, narrowing from near the base, feebly

RHYNCHOPHORA. 485

constricted in front; densely, finely punctate. Elytra much wider than the prothorax, triangular, rather

convex; finely punctate-striate, the interstices almost flat, densely punctate, Femora unidentate.

Tarsal claws minute, free. .

Length 2, breadth 1,1, millim.

Hab. Guaremata, Trece Aguas in Alta Vera Paz (Barber §& Schwarz, in U.S. Nat.

Mus.).

One specimen, in good condition; a worn example from the same locality, with the

white scales much less numerous, and not clustered into definite markings, probably

belonging to the same species. Near C. alboplagiatus, but with the white markings

less sharply defined and differently placed (there being no trace of a spot on the

second elytral interstice below the base), the purplish-brown scales larger and more

numerous ®. The scales are smaller and less rounded on the elytra than in the

variable C. nebuiosus. |

Cyrionyx nebulosus (p. 204). |

To the localities given, add :—GuatemaLa, Trece Aguas in Alta Vera Paz (Barber 5

Schwarz, in U.S. Nat. Mus.).

DIORYMERUS (p. 211).

Diorymerus serripes (p. 213).

To the localities given, add :—Costa Rica, Piedras Negras (U.S. Nat. Mus.).

* The following is another allied form from the Lesser Antilles :-—

Cyrionyx alboguttatus, sp. n. |

Subrhomboidal, narrow, moderately shining, piceous, the legs obscure ferruginous in one specimen ; variegated

above and along the sides beneath with dense spots and patches of pure white scales, the white scales on

the prothorax condensed into three more or less interrupted lines, and those on the etytra into a

transverse patch at the shoulder, an interrupted band below it (extending from the fifth stria to the

margin), an oblong spot on the second interstice at about one-fourth from the base, a larger spot on the

dise towards the apex, and an oblique, anteriorly bifurcate streak at the tip; the rest of the upper

surface clothed with smaller blackish, and that of the under surface with white, scales; the legs albo-

squamose. Head densely punctulate and squamose between the large eyes; rostrum curved, moderately

stout, a little longer than the head and prothorax. Prothorax short, rounded at the sides, narrowing from

near the base, constricted in front; densely, finely punctate. Elytra much wider than the prothorax,

rather convex, triangular ; deeply punctate-striate, the interstices feebly convex and closely punctate.

Legs long and slender ; femora unidentate ; tarsal claws very small, free.

Length 13, breadth 1 millim.

Hab. St. Vincent, Leeward side.

Two specimens. Very like C. alboplagiatus and C. sexguttatus, but with numerous sharply-defined pure

white spots above and beneath, much as in C. semicostatus, an insect with the elytral interstices sharply

raised posteriorly.

486 _ SUPPLEMENT. »

Diorymerus perlevis (p. 214).

To the locality given, add :—Guatemata, Trece Aguas in Alta Vera Paz (Schwarz &

Barber, in U.S. Nat. Mus.).

A second specimen of this species has now been seen. It is much larger than the

Mexican type, measuring, length 32, breadth 22 mm.

20 (a). Diorymerus ruber, sp. n. (Tab. XXIII. figg. 14, 14 @.)

Rhomboid-ovate, narrow, convex, shining, rufous, the anterior femora oad. tibie and the rostrum slightly

infuscate. Head almost smooth, transversely depressed between the eyes ; rostrum arcuate, rather stout,

a little longer than the prothorax, sparsely punctate, the antennew inserted at about the middle. Pro-

thorax slightly broader than long, strongly constricted in front, and hollowed along the flanks beneath,

so as to appear margined at the sides anteriorly, smooth. Sentellum very small. Elytra compressed at

the sides, rapidly and obliquely narrowing from the rounded humeri; with a very fine sutural stria only,

for the rest smooth. Beneath almost impunctate. Legs rather long and slender; femora punctate,

sulcate and unarmed beneath ; anterior tibiee curved from the base, strongly retractile ; intermediate and

posterior tibiz almost straight, the intermediate pair angulate near the base externally, the posterior

pair angulate near the base and apex.

Length 24, breadth 13 millim. (¢ ?)

Hab. Mexico, Santa Lucrecia in Vera Cruz (Knab, in U.S. Nat. Mus.).

One specimen, A remarkably distinct form allied to the Panama D. rubricatus and

D. nigripes, with the legs long and rather slender, the anterior tibie not angulate at

the base externally, the prothorax margined at the sides anteriorly, the sutural stria

very fine and placed close to the suture, the body almost wholly rufescent.

Diorymerus erythronotus (p. 220).

To the localities given, add :—Mexico, Santa Lucrecia in Vera Cruz (Knad, in U.S.

Nat. Mus.) ; Guatemaa, Trece Aguas (Schwarz & Barber, in U.S. Nat. Mus.).

The Colombian D. levipennis, Kirsch, the type of which I have recently examined,

is closely related to the present species, but differs from it in the sharply angulate

anterior tibize and the obsoletely striate elytra.

25. Diorymerus sulcatulus, n. n.

Diorymerus sulcatus, anted, p. 222, t. 12. figg. 31, 31 a (nec Kirsch, 1875).

The specific name sulcatus is preoccupied for a Peruvian insect, and a new one is

therefore required for the species described in this work. |

DIASTETHUS (p. 223).

Diastethus falcatus (p. 228).

To the Costa Rican locality given, add :—Ksparta (Anab, in U.S. Nat. Mus.: ¢ ).

Two additional specimens (@ ) of this species have now been seen from Costa Rica,

agreeing with a Colombian example of the same sex in the British Museum. They

RHYNCHOPHORA. AST

have the prosternum unarmed, but the metasternum and first ventral segment are

hollowed down the middle as in the male.

20 (a). Diastethus hirtimanus, sp. n.

Rhomboidal, shining, black; glabrous above. Rostrum very long and slender, reaching the posterior

margin of the metasternum, thickened and rugosely punctate laterally at the base, for the rest sparsely,

minutely punctate, the antenne inserted at about the basal fifth, the club oblong-ovate and rather small.

Prothorax short, rapidly, arcuately narrowing from the base, strongly constricted in front, the base

obliquely foveate on each side of the median lobe ; sparsely, finely punctate. Elytra much wider than

the prothorax, short, triangular, depressed along the suture ; sharply punctate-striate, the interstices

broad, flat, each with a few very minute scattered punctures down the middle. Beneath rather coarsely

and closely punctate. Prosternum bifoveate in front. Femora unidentate. ‘libiz more or less angulate

near the base externally, the anterior pair ciliate within and strongly sinuate. Tarsal joints 2 and 3

broad, the claws small and connate at the base.

Length 22, breadth 1? millim. (¢ ?)

Hab. Mexico, Rio Balsas (Wickham).

One specimen, found by Mr. Wickham during the past year. This insect has the

long slender rostrum of D. gracilirostris and the angular tibie of D. humerosus, but it

is abundantly distinct from either of them.

CYLINDROCERUS (p. 237).

Since the publication of the description of C. longipennis, from the mountains of

Guerrero (p. 241), I have seen an extremely closely allied form from the Antillean

Island of St. Vincent *. |

* Cylindrocerus insularis, sp. n.

¢. Elongate-rhomboidal, shining, black ; the elytra with a patch of narrow ochreous scales at the base of

the third interstice and a smaller one at the base of the fifth, and the first ventral segment with a large

rounded patch of similar scales on each side. Head sparsely punctate, transversely depressed between the

eyes; rostrum arcuate, a little longer than the elytra, slender, still narrower in its apical third, finely

punctate, coarsely so at the sides to the points of insertion of the antenne at about three-fifths from the

pase, the antennal club elongate, acuminate, and nearly as long as joints 3-7 of the funiculus united.

Prothorax transverse, conical, constricted in front; very sparsely, minutely punctate. lytra much

wider than the prothorax, moderately long, triangular, transversely depressed before and beyond the

middle, the humeri swollen ; deeply punctate-striate, the punctures somewhat distant one from another,

the interstices almost smooth, narrowly subcostate at the apex. Prosternum armed with two upwardly

curved moderately long spines. Anterior tibi fringed with long ochreous hairs on the inner side from

the middle to the apex. [Anterior tarsi probably dilated and clothed with long hairs. |

Length 52, breadth 23 millim.

Hab. Sr. Vincent, Leeward side.

One specimen, wanting the anterior tarsi. Nearly related to the Mexican C. longipennis (type of which is

a 9), but with less elongate, deeply punctate-striate elytra, the third interstice less widened at the base and

the fifth also with a few ochreous scales at this place, the humeri more prominent, the first ventral segment

with a large ochreous patch on each side, the antennal club not so stout, &c. M. Bovie has sent me a very

similar unnamed species from Colombia.

488 SUPPLEMENT.

GEREUS (p. 261).

Mr. Wickham has been kind enough to send us the Barids obtained during his

recent expedition to Mexico, and amongst. them are various additional species of this

genus. The following were also sent, in addition to those specially mentioned below,

from Cuernavaca or Puente de Ixtla, Morelos :—G. gracilis (3 2), G. picumnus,

G. bicruciatus, G. tonsilis, G. baripes ( g)e and G. pallidicornis (@ ).

Geraus rectispinis ( p. 265).

To the localities given, add: :—MExtco, Cordova (Knab, in U.S. Nat. Mus.).

A fully-developed male from Cordova, evidently conspecific with the Jalapa

specimens here included under G. rectispinis, has the prosternal spines fully as long

as the elytra and bent downwards at the tip, and the smooth, circular prosternal

cavity very large and deep.

32 (a). Gereus squamirostris, sp.n. (Tab. XXIII figg. 15, 15a, 3; 16, 2.)

Oblong, rhomboid-ovate, black ; somewhat thickly clothed with narrow ochraceous or whitish scales, those on

the elytra arranged in two rows along each interstice (sometimes increasing to three at the base), the

vestiture of the under surface coarser and closer. Head sparsely punctate ; rostrum (¢ ) a little longer

than the head and prothorax, strongly arcuate, rather stout, much thickened towards the base, densely

punctate, squamose above and beneath, (@) abruptly flattened, widened, bare, and almost smooth from

about one-third from the base, the basal portion stout, arcuate, squamose above, and closely punctate,

the antennee inserted near the middle inthe ¢ and at the basal third in the 9. Prothorax not much

broader than long, rounded at the sides anteriorly, constricted in front; densely punctate, with indications

of a smooth incomplete median line. Scutellum small, almost bare. Elytra a little wider than the

prothorax, rounded-triangular, narrowly punctate-striate, the interstices rugose. Beneath densely

punctate ; first ventral segment slightly depressed down the middle in the d. Anterior coxw widely

separated. Tibi feely unguiculate. ,

3g. Prosternum. armed with a small conical tubercle in front of each coxa.

Length 33-4, breadth 13-13 millim. (¢ 2.)

Hab. Muxico, Cuernavaca in Morelos (Wickham).

Two males and four females. Near G. finitimus (Casey), but with a less transverse

prothorax, the rostrum of the male squamose above and beneath and less evenly

arcuate, much thickened at the base in both sexes, the anterior tibiz of the male

feebly unguiculate, the prosternum armed with small conical tubercles as in G. bituber-

culatus *. The sexual differences in the form of the rostrum are almost as strongly

marked as they are in G. hospes.

32 (s). Gerwus subinermis, sp.n. (Tab. XXIII. figg. 17, 17a, 3.)

Rhomboid-ovate, black, somewhat thickly clothed with narrow whitish scales, “thoes on the elytral interstices

biseriately arranged. Head finely punctate; rostrum (¢) regularly arcuate, gradually thickened

towards the base, a little longer than the head and prothorax, and closely punctate, (9) flattened,

widened, and almost smooth from about the basal third, the basal portion stout and closely punctate.

* J have seen two specimens only of G@. finitimus, from Texas, both males, one with the prosternal spines

reduced to small tubercles as in the present species.

RHYNCHOPHORA. 489

Prothorax strongly transverse, rounded at the sides anteriorly and constricted in front; densely, finely

punctate. Scutellum small, almost bare. Elytra considerably wider than the prothorax, subtriangular ;

narrowly punctate-striate, the interstices rugose. Beneath closely punctate ; first ventral segment

slightly depressed down the middle in the ¢. Anterior cox separated by about their own width.

Tibize feebly unguiculate, the anterior pair almost straight.

¢@. Prosternum with a very small tubercle in front of each coxa.

Length 3-32, breadth 12-13 millim. (d 9.)

Hab. Mexico, Cuernavaca (Wickham: 3 ¢), Chilpancingo (H. H. Smith: ¢).

Five males and three females. ‘This insect differs from G. squamirostris in having

the prothorax relatively shorter and considerably narrower than the elytra, the rostrum

of the male evenly arcuate and almost bare beneath, that of the female less widened

outwards and not so abruptly flattened, the prosternum of the male with a minute

tubercle in front of each coxa. ‘The shorter and stouter rostrum, the less elongate

vestiture, the bituberculate prosternum of the male, &c., separate G. subinernits from

all the forms of G. penicellus, a common species at Cuernavaca. Compared with

G. gracilis, the female has a broader, flatter, and smoother rostrum, and the male less

sinuate anterior tibie and an almost unarmed prosternum.

Gerzeus x-notatum (p. 282).

To the Mexican localities given, add :—Cuernavaca (Wickham: ¢ ).

Described from two females. ‘The male has two moderately long porrect prosternal

spines and the anterior tibia hollowed on the inner side towards the apex.

50 (a). Gereus costatus, sp.n. (Tab. XXIII. figg. 18,184, 2.)

Gereus sp., antea, p. 269, nota.

Rhomboid-ovate, robust, subopaque above, shining beneath, black; sparsely clothed with small, hair-like,

inconspicuous scales, the elytral interstices 2-6 each with a dense patch of coarser, narrow, ochreous

scales at the base, together forming a sinuous basal fascia. Head closely punctate, foveate vetween the

large eyes ; mandibles angulate at the base beneath; rostrum arcuate, about as long as the head and

prothorax, stout, thickened towards the base, closely punctate, the apical half almost smooth, the

antenn inserted at the middle. Prothorax transverse, deeply bisinuate at the base, narrow and

tubulate in front, the sides strongly rounded anteriorly ; densely, rather coarsely punctate. lytra

subtriangular, much wider than the prothorax, conjointly rounded at the apex; punctato-sulcate, the

interstices costate and densely, coarsely punctate. Beneath coarsely, closely punctate. Anterior cox

narrowly separated. Legs short ; all the tibi dilated at the apex externally; third tarsal joint

broadly bilobed.

Length 64, breadth 3} millim. (@Q.)

Hab. Mexico, Mexico city (Herrera, in U.S. Nat. Mus.).

One female, with the legs somewhat injured. ‘This conspicuous species is not

unlike G. scabrosus and G. inornatus, but on account of the shorter and stouter

rostrum it seems to be more nearly related to G. tencbricosus, G. pugnax, and G. basi-

notatus. The rugose, costate, basally ochreo-fasciate elytra readily distinguish

4. costatus from all the other species of the genus described in this work. The

prosternum is doubtless spined in the male. a _

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, Aprad 1909. 3RR

490 . SUPPLEMENT.

53 (a). Gereeus puerulus, sp.n. (Tab. XXIII. figg. 19, 2; 20, ¢.)

Oblong-subrhomboidal, narrow, shining, black, the apex of the rostrum, the antenne, and the legs often, in

part or wholly, ferruginous; somewhat thickly clothed with rather coarse, narrow, white scales, the

elytra sometimes with a few brownish scales intermixed—those on the prothorax condensed into two

short, curved, longitudinal lines on the disc at the base and a small patch on the median lobe, those on

the elytra closely, biseriately placed along each interstice, and condensed into a faint scutellar patch and

an indistinct oblique fascia on the disc beyond the middle. Head sparsely punctate, transversely

‘depressed between the eyes; rostrum ( 3) strongly arcuate, much longer than the head and prothorax,

slender, gradually thickened towards the base, the basal portion finely punctured, the rest almost smooth,

(2) a little longer, flattened and somewhat dilated towards the tip. Prothorax transverse, gradually,

arcuately narrowing from the base, constricted in front ; densely punctate, with indications of a smooth

median line. Scutellum small, almost bare. Elytra considerably wider than the prothorax, sub-

triangular ; narrowly punctate-striate, the interstices rugulosely punctate. Beneath densely punctate ;

first ventral segment depressed down the middle in the ¢. Anterior coxe somewhat narrowly separated.

Legs long and slender.

3. Prosternum in fully developed examples slightly hollowed down the middle and armed with two very

short, slender, erect, blunt spines, which are partly hidden by the vestiture.

Length 23-3, breadth 11-14 millim. (¢ 9.)

Hab. Mexico, Cuernavaca and Puente de Ixtla in Morelos (Wickham).

Four males and four females, one of the former wanting the prosternal spines.

A small, narrow form of G. submaculatus, with the vestiture almost wholly whitish,

and condensed into similar markings on the prothorax and elytra. One of the two

specimens of G. submaculatus from Guatemala is of the same size, but it is easily

separated from the present insect by the more rounded sides of the prothorax and the

large admixture of brown scales on the elytra.

77 (a). Gergeus tonsus, sp.n. (Tab. XXIII. figg. 21, 21a, ¢.)

Gereus sp. ?, antea, p. 298’.

Oblong-rhomboidal, flattened above, black; thickly clothed with small cinereous scales—hair-like and

transversely arranged on the prothorax, oblong and placed in two or three compact lines down each

elytral interstice,—the vestiture coarser, denser, and whiter along the sides of the body beneath. Head

finely punctate; rostrum (<¢) a little longer than the head and prothorax, arcuate, rather slender,

thickened towards the base, closely punctate, ( Q ) flatter and much smoother from about the basal third,

the antenne inserted near the middle in both sexes. Prothorax strongly transverse, rounded at the

sides anteriorly, constricted in front; densely, finely, subconfluently punctate, with indications of

a smooth raised median line. Scutellum small, almost bare. Elytra oblong-subtriangular, narrowly

punctate-striate, the interstices densely, rugulosely punctate. Beneath densely punctate ; first ventral

segment broadly excavate in the ¢. Anterior coxe separated by about their own width. Prosternum

unimpressed, unarmed inthe ¢. Anterior tibive without visible uncus in either sex.

Length 3j-43, breadth 13-21 millim. (d 2.)

Hab. Mexico (Lruqui and Dupont, in Mus. Brit.), Guanajuato! (Sallé: ¢ 9),

Mexico city ! and Hidalgo (Barrett, in U.S. Nat. Mus.: 3 2).

Additional specimens of this insect have now come to hand, sufficient for a detailed

description. 7. tonsus is a form of G. tonsilis, with the vestiture of the upper surface

finer, the prothorax strongly transverse and more finely and more densely punctured,

and the scales on the elytra less elongate and much smaller.

RHYNCHOPHORA. 49]

77 (B). Gergeus penicellus, (Tab. XXIII. figg. 22, 22a, var., 2.)

Curculio penicellus, Herbst, Kafer, vii. p. 29, t. 99. fig. 6.

Baridius penicellus (amictus), Say, Descr. N. Am. Cure. p. 17 (1831) ?; Complete Writings, i.

p. 281°.

Centrinus penicellus, Lec. Proc. Am. Phil. Soc. xv. p. 308*; Casey, Ann. N. York Acad. Sci. vi.

pp. 576, 591°.

Centrinus holosericeus, Gyll. in Schénh. Gen. Cure. iii. p. 760°.

Baridius pubescens, Uhler, Proc. Acad. Phil. vii. p. 417”.

Balaninus tomentosus, Klug, in litt..

Hab. North America!-°°, New York to Florida and Louisiana‘, Iowa and

Indiana ®, Virginia ‘.—MeExico, Puente de Ixtla and Cuernavaca in Morelos (Wickham:

3 2), Amula (H. H. Smith: 2 ).—Cusa® §.

Mr. Wickham has sent us a long series of this common N.-American species from

Mexico, one of them with the subsutural apical spots distinct, one with the dark spots

extending on to the disc, and the rest with the vestiture of the elytra uniformly

ochraceous or whitish, as described by Uhler. The two females from Amula doubtfully

referred to G. sinuatipes (anted, p. 276) also belong here. G. penicellus has the

prosternum unarmed in the male, but otherwise it is very like many of the species

placed under “04” in the Table. The closely related G. ¢onsilis has a stouter rostrum,

non-unguiculate anterior tibiz in the male, &c.

80 (a). Gerzeus tenuistriatus, sp.n. (Lab. XXIII. figg. 253, 23a, 2.)

Oblong-rhomboidal, flattened above, black; densely clothed with small adpressed white scales—those on the

prothorax long, narrow, and transversely arranged, those on the elytra oblong-oval and placed in four

compact rows along each interstice (the first with three rows only), and those on the under surface

rather broad and oval,—the scutellum and humeral callosities bare. Head densely punctate, squamose ;

rostrum arcuate, about twice as long as the prothorax, slender, very slightly thickened at the base (as

seen in profile), flattened and widened towards the tip, finely punctate and feebly carinate in its basal

half, the apical portion almost smooth, the antenni inserted at the middle. Prothorax strongly

transverse, conical ; densely, very finely punctate. Scutellum subquadrate, rather large. Elytra much

wider than the prothorax, rather long, subtriangular, the humeri rather prominent; very finely and

shallowly punctate-striate, the interstices broad, flat, and densely rugulose. Beneath densely punctate.

Prosternum shallowly sulcate.

Length 44, breadth 2,4; milim. (@.)

Hab. Mexico (ex coll. Solari).

One female, in bad condition. Closely related to G. candidus, but more flattened

above, the rostrum longer and quite slender throughout, the antenne inserted at

the middle, the elytral strie very fine, shallow, and inconspicuous, the prothorax

rapidly and obliquely narrowing from the base. he faintly striate elytra and

the long, slender rostrum separate (. tenwistriatus from all the other Mexican species

of the genus.

3RR 2

£99, _ SUPPLEMENT.

Gereus hospes (p. 300).

In the description of the male of this species I omitted to note that the anterior

femora have a compressed angular prominence at the base beneath, and that joints 2-7

of the funiculus are set on the lower face with long bristly hairs.

ODONTOCORYNUS (p. 317).

5. Odontocorynus salebrosus. (Tab. XXIII. fig. 24.)

Centrinus (Odontocorynus) salebrosus, Casey, Ann. N. York Acad. Sci. vi. pp. 577, 598 ‘

Hab. Nortu America, New York to Texas !.—Mexico (Mus. Brit.: @), Cuernavaca

(Wickham: 3 2).

Mr. Wickham has recently sent us about a dozen examples of this insect from

Cuernavaca. They have narrower, longer, and more slender scales on the upper

surface than in the single specimen communicated by Col. Casey, who, however.

states! that the vestiture is very variable in form. 0. salebrosus is a close ally of

OQ. scutellum-album (Say), which will probably be found to extend into Mexico also.

CENTRINITES (p. 320).

5. Centrinites tibialis.

&. Centrinus tibialis, Kirsch, Berl. ent. Zeitschr. 1875, p. 271°.

&. Centrinites dentimanus, anted, pp. 821, 323, t. 17. figg. 4, 4a, 6°.

To the locality given 2, add :—Perv, Pozuzu '.

The affinity of the Teapa insect with the Peruvian C. /ibialis was unfortunately

overlooked, though the unique type of the latter had been lent me by Dr. Heller for

examination. The two Mexican specimens merely differ from it in having the

vestiture a little coarser, and the setiform white scales more numerous on the elytra.

A similarly extended distribution has been recorded for Ampeloglypter ovalis

(antea, p. 388).

LASIOBARIS, gen. nov. (to follow the genus Centrinites, p. 324).

Mandibles stout, curved, notched within, decussate; rostrum stout, strongly arcuate, abruptly bowed from the

base, not longer than the head and prothorax, the antenne inserted at the middle, joints 3-7 of the

funiculus transverse, widening outwards, 1 elongate, the club ovate and densely pubescent ; prothorax

strongly bisinuate at the base; scutellum very small, free; elytra much wider than the prothorax,

subtriangular, narrowing from the oblique humeri; pygidium not visible; prosternum hollowed down

the middle for the reception of the funiculus, unarmed ; anterior coxe somewhat narrowly separated ;

femora unarmed; tibix acutely dilated at the outer apical angle, the apical uncus short; tarsal claws

small, contiguous at the base; body ovate or oblong-ovate, coarsely sculptured, the prothorax with large

rounded umbilicate punctures, clothed with fine, bristly, hair-like scales.

Trpe, L. wickhami.

The two insects from which the above characters are taken are nearly related to

RHYNCHOPHORA. 493

Centrinites, but they differ from all the species referred to that genus in their small,

subcontiguous tarsal claws, the more curved mandibles, the abruptly bowed, shorter

rostrum, and the peculiar sculpture and vestiture of the body. The surface-sculpture

is like that of Baris strenwa, and the vestiture is fine and hair-like, extending along

both the striz and the interstices of the elytra. We are indebted to Mr. Wickham

for the types of both species, which were captured by him in Mexico during the past

year, showing that such well-known localities as Cuernavaca are by no means

thoroughly investigated *.

1. Lasiobaris wickhami, sp. n. (Tab. XXIII. fige. 25, 25a, 2.)

o. Broad-ovate, robust, subopaque, rufo-piceous; above and beneath, the legs, and antenna somewhat

thickly clothed with rather long, semierect, pallid, bristly hairs, which are arranged in a single row

along each of the elytral sulci and interstices. Head shallowly, transversely grooved and somewhat

rugosely punctate between the eyes, the vertex finely punctured ; rostrum about as long as the prothorax,

slightly flattened at the tip, coarsely, closely punctate. Prothorax transverse, feebly constricted in front,

the sides rounded anteriorly and subparallel at the base; densely pitted with large, rounded, umbilicate

punctures, the disc with an abbreviated raised median line. Scutellum very small, transverse. Elytra

convex, much broader than the prothorax, rounded-triangular ; coarsely, broadly punctato-suleate, the

interstices (the narrow sutural one excepted) as wide as the sulci, finely costate on each side, and with a

closely-packed single series of coarse punctures down the middle. Beneath very coarsely, densely

punctate ; first ventral segment slightly depressed down the middle, the fifth foveate at the apex.

Length 42, breadth 23 millim.

IIab. Mexico, Cuernavaca in Morelos (Wickham).

One specimen, probably somewhat immature.

2. Lasiobaris geminata, sp.n. (Tab. XXIII. figg. 26, 26 a.)

Oblong-ovate, somewhat flattened above, opaque, piceous, the outer margins of the elytra, the rostrum,

antenne, and legs rufescent ; sparsely clothed with very small, fine, hair-like, decumbent, pallid scales,

those on the elytra arranged in a single line down each of the sulci and interstices. Head finely

punctate, transversely grooved between the eyes; rostrum nearly as long as the head and prothorax,

closely, coarsely punctate. Prothorax transverse, constricted in front, the sides obliquely converging

from the base and rounded anteriorly ; densely pitted with large, rounded, umbilicate punctures, the

disc with an abbreviated raised median line. Scutellum small, oblong, apparently divided across the

middle, the anterior portion rounded, the posterior portion transverse. Elytra rather elongate, rapidly

narrowing from the oblique humeri; coarsely, broadly punctato-sulcate, the interstices as wide as the

sulci, finely costate on each side, and with a closely-packed single series of moderately coarse punctures

down the middle. Beneath very coarsely, densely punctate.

Length 4,, breadth 2 millim. (2°)

Hab. Mexico, Rio Balsas ( Wickham).

One specimen. Longer, flatter above, and with the vestiture much shorter, finer,

and sparser than in L. wickhami, the prothorax obliquely narrowing from the base, the

interstitial punctures on the elytra not so large (much finer than those of the striae),

the scutellum apparently divided into two.

* He has also sent us Pseudocentrinus ochracevs, g and Q, from this place.

494 SUPPLEMENT.

LEPTOSCHCENUS (to follow the genus Platyonyz, p. 329).

Leptoschoinus, Schéuherr, Gen. Cure. viii. 1, p. 264 (1844) ; Lacordaire, Gen. Col. vil. p. 237.

Leptoschenus, Gemminger & Harold, Cat. Col. viii. p. 2635.

This genus is based on a single Tropical-American species, the Mexican habitat of

which we are now able to confirm, Mr. Wickham having recently sent us specimens

of it from Cuernavaca. Leptoschenus is closely related to Platyonyx, differing from it

in the non-dilated fourth tarsal joint in the male and the greatly elongated, compact

cylindrical antennal club in that sex. The elytra are broadly and separately rounded at

the apex (as in Platyonya), leaving the tip of the last dorsal segment exposed ; the eyes

are very large; and the mandibles (as in Gereus) are almost straight on their inner edge,

and do not overlap at the tip when closed. ‘Two species here referred to Gereus

(G. longiclava and G. tenuiclava) have the antennal club of the male formed much as

in Leptoschenus maculatus, but they are not otherwise nearly related to it.

1, Leptoschenus maculatus. (Tab. XXIII. figg. 27, 27a, 2; 28, 3.)

Cylindrocerus maculatus, Boh. in Schénh. Gen. Cure. ii. p. 793 (¢ ¢)'.

Leptoschoinus maculatus, Schonh. op. cit. viii. 1, p. 265°; Lacord. Gen. Col. vii. p. 238”.

Leptoschanus maculatus, Gemm. & Harold, Cat. Col. viii. p. 2635 *.

2. Rostrum strongly arcuate, tapering, slender, smooth and bare from near the base, the antenne inserted

far behind the middle, with joint 2 of the funiculus nearly as long as 3 and 4 united, the club rather

more than half the length of the funiculus.

Hab. Mexico 3, Cuernavaca (Wickham: 2 ).—SoutH America, Cayenne * 4, Brazil 1+.

‘Two females, differing from Lacordaire’s description in having the second joint of the

funiculus much shorter than the first. The figure (28) of the antenna, &c., of the male

is taken from a Brazilian example.

CATAPASTUS (p. 333).

2. Catapastus nivescens, sp.n. (ab. XXIII. figg. 29, 29a, 2.)

Ovate, black, densely clothed with rather large, adpressed, pure white scales—those on the prothorax long and

transversely arranged, those on the elytra oblong-ovate and closely, biseriately placed along each interstice,

and those on the under surface broadly oval. Head densely punctate and squamose, the eyes rather

small; rostrum feebly curved, a little longer than the head and prothorax, gradually thickened towards

the base, rather slender at the tip, densely punctate, squamose in its basal half, the antenne inserted

slightly behind the middle. Prothorax strongly transverse, rapidly, arcuately narrowing from the base,

not constricted in front; densely, rugosely punctate. Scutellum almost bare. Elytra with the sides

forming an almost continuous oval outline with the prothorax, deeply punctate-striate, the interstices

rugose. Beneath densely punctate. Prosternum shallowly depressed alcng the middle. Anterior cox

narrowly separated. Legs short, densely syuamose.

Length 33, breadth 14 millim. (@.)

Hab. Mexico, Rio Balsas (Wickham).

RHYNCHOPHORA. 495

One specimen, in very fresh condition. This insect agrees sufficiently well with

C. ruficlava to be included in the same genus. The regularly oval outline, the dense,

pure white, coarse vestiture, the almost bare scutellum, and the long rostrum are its

principal characters. ‘The tarsal claws are connate at the base and the mandibles are

slightly decussate at the tip, as in the typical species of Catapastus. The rows of

scales on the elytra are increased to three at the base and reduced to one at the apex.

CALANDRINUS (p. 339).

_ Calandrinus grandicollis (p. 339).

To the locality Mexico, add :—Saltillo in Coahuila (Wiekham).

ZAGLYPTUS (p. 339).

Since the account of this genus was published, I have seen a minute form, from the

Antillean Island of St. Vincent, closely related to Z. minutissimus (p. 341), also

specimens of an allied new genus from the same locality *.

* Zaglyptus quadriguttatus, sp. n.

Rufo-testaceous, the eyes black; clothed above with scattered, short, erect, light and dark setw intermixed

with afew decumbent, hair-like, ochreous scales, the elytra with a small dense patch of narrow yellowish-

white scales on each shoulder and another on the fifth interstice towards the apex ; the legs with a few

erect pallid sete. Rostrum stout, arcuate, a little longer than the head and prothorax. Prothorax

short, conical, uneven, alutaceous, sparsely punctate, subcarinate at the base. Elytra much wider than

the prothorax, triangular, somewhat flattened on the disc anteriorly, with rows of rather coarse punctures

placed along fine shallow sete, the interstices feebly convex, faintly punctulate. °

Length 1-14, breadth 2-3 millim.

Hab. Sv. Vincent, Mount Gay Estate, Leeward side (17. H. Smith).

Three specimens. Very near the Guatemalan Z. minutissimus, but less convex, and with the sete shorter

and fewer in number, the elytra each with a small densely squamose spot on the shoulder and another on the

disc towards the apex.

ZAGLYPTOIDES, gen. nov.

Rostrum abruptly separated from the head, arcuate, moderately stout, about half the length of the body,

the scrobes gradually descending, the antennw inserted at or near the middle, the funiculus 7-jointed,

joints 2-7 transverse, closely articulated, and gradually widening, the club pubescent, stout, oblong-ovate,

as Jong as the preceding 6 joints united ; eyes very narrow, strongly transverse ; prothorax short, convex,

conical, feebly sinuate at the base, abruptly tubulate in front, the tubulate portion separated from the

rest by a deep transverse groove ; scutellum very small, free, transverse; elytra much wider than the

prothorax, triangular, inflated, without trace of stria on the disc, the apices conjointly rounded and

extending for a short distance downward on a lower plane than the rest of the surface, completely

protecting the apex of the abdomen in repose; prosternum narrowly and deeply sulcate from the apex to

between the cox, the latter separated by less than their own width ; intermediate and posterior cox

widely separated ; mesosternum subvertical, the transverse suture distinct; mesothoracic epimera

narrowly ascending ; metathoracic episterna narrow; ventral segments 2-4 short, 1 and 2 connate;

femora linear, unarmed; tibiz slender, without visible uncus at the tip; tarsi with a few fine hairs

496 _ SUPPLEMENT.

LIMNOBARIS (p. 343).

14 (a). Limnobaris parilis, sp. n. (Tab. XXIII. figg. 30, 30 a.)

Oblong-ovate, moderately shining, black, the tarsi piceous ; sparsely clothed with small narrow white scales,

those on the prothorax hair-like, and those on the elytra coarser, setiform, and arranged in a single line

down each interstice, the interstices 2~4 with a few additional white scales at the base, those on 2 clustered

into a distinct oblong spot. Head closely punctate, transversely depressed and foveate between the eyes ;

rostrum strongly arcuate, moderately stout, nearly as long as the head and prothorax, sparsely, finely

punctate, the antennz inserted at about the middle, the outer joints of the funiculus strongly transverse

and nearly as wide as the club. Prothorax much broader than long, feebly constricted in front, the sides

parallel at the base and arcuately converging towards the apex; densely, finely punctate, except along

the smooth median line. Elytra slightly wider than the prothorax, very gradually narrowing from

the base, somewhat flattened at the middle of the disc; deeply punctate-striate, the interstices rather

coarsely and closely uniseriate-punctate. Beneath closely punctate. Prosternum unimpressed behind

the transverse subapical groove. Anterior coxw separated by rather more than their own width.

Length 23, breadth 14 millim. (@ ?)

Hab. Mexico, Cordova (Knad, in U.S. Nat. Mus.).

One specimen. Shorter and broader than L. languida, the rostrum shorter, the head

foveate between the eyes, the vestiture much sparser, that on the elytra setiform and

uniseriately arranged, the second interstice witl a white spot at the base. ‘The strongly

transverse prothorax, shorter rostrum, &c., separate L. parilis from L. desidiosa. ‘The

mandibles are decussate, and the pygidium is not visible, as in the other species of

Limnobaris*.

beneath, joint 3 simple, slightly wider than 2, the claws long and divergent; body short, rhomboidal,

couvex, polished, glabrous, except for a few erect hairs above.

This genus is related to Diastethus and Diorymellus, but the third tarsal joint is simple as in Zaglyptus.

Zaglyptoides ferrugineus, sp. n.

tufo-ferruginous, the eyes black, the prothorax and elytra with a few fine, erect, ochreous hairs arising from

widely scattered punctures, those on the elytra seriately arranged. Rostrum almost smooth. Elytra

with rather coarsely punctured fine marginal strive only, the humeri somewhat swollen. Metasternum

coarsely punctate, the propleura smooth,

Length 11-14, breadth 3—} millim,

Hab. Sr. Vincent, Black Forest Estate, Windward side, and Leeward side (47. H. Smith).

Seven specimens. A minute insect of about the same size and shape as the smaller members of the genus

Zaglyptus, but readily separable therefrom by the abruptly tubulate prothorax, the more transverse eyes, &c.

* The following species is included in the Antillean collections at the British Museum :—

Limnobaris antiilarum, sp. n.

Oblong-elliptic, flattened above, shining, black, the tarsi and antenne obscure ferruginous; subglabrous, the

punctures on the under surface and legs each bearing a minute scale, Head finely punctate, transversely

grooved between the eyes; rostrum arcuate, rather slender, subcylindrical, slightly thickened towards

the base, a little longer than the head and prothorax, very sparsely, minutely, punctate, the basal

portion rugulose laterally, the antenne inserted at about the basal third. Prothorax strongly trans-

verse, feebly constricted and much narrowed in front, the sides parallel at the base and rounded

RHYNCHOPHORA. 497

ORTHORIS (to follow the genus Pseudorthoris, p. 358).

Orthoris, Leconte, Proc. Am. Phil. Soc. xv. p. 286 (1876) ; Casey, Ann. N. York Acad. Sci. vi.

pp. 467, 570.

We are indebted to Mr. Wickham for sending us a Mexican representative of this

American genus, remarkable amongst the Barids on account of the non-unguiculate

tibize, the tarsal claws, on the contrary, being long and divergent. The type, O. crotch,

Lec., appears to be a common insect in Colorado, California, ‘Texas, &c., and it may also

occur in Mexico.

1. Orthoris cylindrifer. (Tab. XXIII. figg. 31, 31a, ¢.)

Orthoris cylindrifer, Casey, Ann. N. York Acad. Sci. vi. pp. 570, 571°; Pierce, Ent. News, 1907,

p. 381°.

Hab. Nortu America, Arizona!, Texas 2.—Mexico, Cuernavaca, Puente de Ixtla

(Wickham).

The two specimens received agree very nearly with Casey’s description, which was

based on a single female example. The antennal club is very elongate in both sexes.

The ventral segments 1 and 2 are deeply excavate down the middle in the male.

O. cylindrifer, according to Pierce, breeds in the stems and roots of Mentzelia

oligosperma (order Loasee), a plant inhabiting Northern Mexico *.

BUSCKIELLA, n. n.

Busckia, antea, p. 454 (Feb. 1909) (nec Dyar, 1902).

The generic name Busckia is preoccupied in Lepidoptera and must therefore be

changed.

1. Busckiella lecythidis.

Busckia lecythidis, anted, p. 454, t. 22. figg. 4, 4 a-c.

anteriorly ; finely, somewhat closely punctate, except along the smooth median line, the punctures

becoming coarser and confluent at the sides. Scutellum small, transverse. Elytra considerably wider

than the prothorax, oblong-cordate, depressed along the suture ; sharply punctato-sulcate, the interstices

flat, 2 and 3 finely and confusedly, and the others closely, uniseriately, punctate. Beneath closely punc-

tate. Prosternum slightly depressed down the middle anteriorly. Anterior coxe small, separated by

about one and a half times their own width.

Length 4, breadth 13 millim. (Q ?)

Hab. St. Vincent, Windward side (H. H. Smith).

One specimen. Not unlike L. (Baridius) ethiops, Kirsch, from Sarayacu, but larger and more narrowed in

front and behind, the elytra depressed along the suture and deeply sulcate, the rostrum longer and more

slender, &c,

* Biol. Centr.-Amer., Botany, i. p. 473.

BIOL, CENTR.-AMER., Coleopt., Vol. LV. Pt. 5, April 1909. 3 SS

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

ACANTHOBARIS. ............ 251

Acanthobarts ......... veces 454

—— castaneipennis .......... 252

——— castaneipennis .......... 251

ACANTHOMADARUS .......... 384

: irus 2... eee ee eee 384.

AMBATES ........6.... 155, 481

Ambates ........ 170, 171, 203, 409

albiventris.......... 169, 483

—— albiventris .......... 155, 170

—— albovittatus ............ 158

——angustatus ............ 168

ANGUSTALUS Woe cece eeeee 155

—— apicalis .......... wiaees 168

belti 2.0... cee eee ee eee 160

beltt ieee cseceeeaee 155, 156

—— biguttatus.......... 164, 482

bisignatus .............. 165

bisignatus ...... 163, 164, 167

Buquett 26.66. c eee eee eee 168

—— CHCUS oe eee eee nee 163

CRCUS wosvececvcves .- 162, 164

CEBUS Lecce cece wanes 163

—— chetopus .........+.... 483

circumductus .......... 166

—— circumductus ...r..eee. 167

—— cleroides ..... See eewnsas 170

— cretifer ............ 156, 481

——— Cretifer oo csecevvces 155, 171

— decemnotatus .........4. 155

Morsalis ... cece vee eee . 166

duplicatus........ wees. 165

—— exclamationis .......... 165

exclamationis ........ .. 168

fasciolatus.............. 160

—— fasciolatus....... beeeees 161

—— heilipoides.............. 157

—— heilipordes 6... 0c cevenes 158

—— immaculatus .......... 169

ammaculatus.....seecees 155

Page

Ambates isthmicola.......... 481

—— lateralis............4-. . 482

—— latevittatus ...,.. a 159

latevittatus ......eecee 482

leucopleura ............ 158

—— leucopleura .... 155, 159, 482

melanops .......-. oe. 162

melanops 155, 170, 173

—— nigronotatus............ 163

NUGVPONOLAtUS ......eee0ee 164

— obliquus............... . 161

ocellatus ........05200- 163

ocellatus ....ceeses 155, 164

OctonotatUs. .. 66... ceeces 156

ornativentris..........6. 167

ornatwventris .....ececees 483

pictipennis ............ 164

—— polymorphus .......... 157

— polymorphus ,... 155, 158, 163

POSLICUS 66... 2. cee e eens 184

quadrilineatus ....6.006- 158

rhombifer ............65 159

1 161

scutiger ....--.06 167, 482

SCULUGEr voce ccercecs 168, 483

sexpunctatus .......... 161

sinuatus .........- 159, 482

SINUALUS ve csecenveeeee 160

SOlani....ceeceeeees 166, 482

SOIANE vc see veveees 167, 408

tetrastigma ......6. ee. 162

triangularigs .........+6+ 161

—— triangularis ..se.ceeeeee 160

—— vitticollis ........-.006. 168

UttttCollts ocasecereeees 169

AMBATIDES ........-e000eee 155

AMERCEDES ..... 0006. sees 329

Amercedes ......0000 we. B00, 334

—— orthorrhinus............ 330

orthorrhinus ....eececees 329

Page

Amercedes subulirostris ...... 330

AMPELOGLYPTER .......+++0- 387

Ampeloglypter ....++..+. 364, 402

AEP vee eeceees see. 388, 389

—— binodosus .............. 389

OiN0dOSUS 66. esc eeeveeee 388

CLONJALUS 6... eee eeeeeee 388

NACATAGUENSIS ..cecescas 388

nitidus ....... peveeeeee OOF

—— ovalis......... bc eeeeee 388

OVENS... cee eeveees 389, 492

—— plicatipennis...... Leaees 389

—— plicatipennis ........ 388, 390

speculifer ........, ..... 889

speculifer ...... see 887, 388

—— sulcifrons .............. 388

ANISORRHAMPHUS ,,........ 400

—— squamiventris .......... 400

ANOPSILUS. 1.0.00... cece eee 415

Anopsilus ....ccec cee 397, 416

bonvouloiri ............ 416

bonvouloirt vo. cece eee 415

CONTCOMIS Lecce cece eeeee 415

MELICANUS occ cceceeeces 416

Anthonomus oo... ce cccececee 129

Apatorhynchus ....ccceeecees 20

leopardinus .........00 20

ARACHNOMORPHA .......... 47

circumlineata .......... 47

ARCHOCOPTURUS ..........05 43

Archocopturus Stee e ee ccccces A2

regalis so... cee. se ee eee 43

regalis ....... coe wecens 42

AULEUTES......... 00000005. 144

Auleutes .iccecscc ceca 139, 150

Gasper... sss, bees eeeees 147

—— asperipennis ...... ereae 147

ASPENUPENNIS .. 66... c0ee, 146

—biolleyi................ 150

biolleyi oo... cece ee ceeee 146

500

Page

Auleutes cavisternum ........ 148

CAVISLEFNUMN cecccccveees 146

—— dispersus ..........5005 150

AisPersUs vos ceccrereces 146

Cpilodit oo eeaesvceveree 145

——— INerMiS 6... es eee reeves 150

INEYMUS wc eceeveces 145, 146

—— inspersus ........+++.4- 148

INSPEVSUS se eseveee , 146, 150

instabilis .......... .... 148

anstabilis .. ccc eeeeaeee . 146

——— megalops .........45- .. 146

— MCYAlOPS vrssceesvacees 145

—— mexicanus....... fecbens 149

MEXICANUS ov svevees 146, 150

mebuUlosus ......eeee 146, 151

— similis .........06 veeee 149

SIMMS veccacees ... 146, 160

sulcifrons ........ veeeee 147

SULCUFYONS we vviveees 146, 148

—— tenutpes oo... eine se .. 147

Aulobaris: vicceses cecceeceee 400

WIS eee en's “seetucsoetes 439

Asyyides stygius sevceccvecee 207

Balaninurus miniatus .....6.% 49

Balaninus .....+ ‘ets e wes . 268, 363

tomentosuS ....06- wee. ADL

Balanobtus’ occccccecces wee. 129

Balbus wivvcccesccecees 397, 415

BARIDES ...c see eee eee cence 397

Baridtides vrais va cevceeves 397

Bartdius oo ccc ccc nw ee eeeee 457

acutipennts ......6 sees 445

——— ENESCENS hd cvvercvenee 458

——— @VAtUS vee ccceecerees .. 345

——— MOUS cer cw werner nnes 469

—— @thiops ......6- 343, 346, 497

amictus ...+..- pete eens 491

——anthracinus occcecceees 439

——— Aptcalts oo. eee eee e eee 440

1017 458

BF UVIB cette eae 438

—— caldarius ........ deeuss 468

— calhfornicus ..... seneeee 474

——Collaris ..cceccues senna 458

COPTUSCUS voc pe eee eee eee 469

COPVINUS occ ecw ence 425

CYENALUS woe eee eeee 439, 440

——— curtulus ... sre ceeee 390, 391

—— depilis ...ceceecuee 439, 440

CYUDESCENS vec ccccveccees 458

———— EVUISUS Lo cece rene renee 403

fasciatus” 6... eceeeveeee 377

FEVIUGO vevevccvvceues .. 458

INDEX.

Page

Baridius funereus ........ 848, 364

TMPPVESSUS oe eareees . 377, 380

——— INANIB.. 6s vee piace sea 388

—— lituratus ..cccvcceeeees 403

longtrostrts se. ceeee 355, 418

———_ MEXICANUS ova ccccececes 459

——— MUCOTEUS veveeeeeveece . 418

——— MUMMUS Loe ccccceeceees 473

——— NUGETTIMUS voce eereeees 420

NOCALUS vereesereceesees 439

OVALS 6. ccc eee ee 387, 388

——— PAVUUS vevecncreeecees . 451

pelliceus ..ceesereeee y... 414

penicellus v..ceee Leceeee 491

——— PUCUMNUS oie eeee ee ceees 278

——— plicatus oo. ceeeee peeee 446

—— punctatissimus ........- 459

——- puncticollis -.....606 425, 460

—— PUGAEUS wo cee 408, 405

rugicollis ...seeeceeeees 403

SENESCENS sv vvsecaces . 458

SMATAGAINUS. .reeeeeees 458

——— SEPENUUS. rervrweeeccercres 459

SEPTATUS ore c wesc eeeenes 459

——— B8UD@NEUS. oer cccvceccces 425

—— subscubrosus -... 000s ees 440

thoracicus...e0..022+ 206,473

—— LIDIA. cece eee 437

EYANSVENSUS voveececeees 464

——. UNAALUS oo erences . 489, 440

—— undulatus .......06. 439, 440

—— vestttUs we... ee cenes 412, 413

—— viridans .o....0. seekae 457

BARILEPTON .......4. eb ads 336

—— famelicum............4- 336

BARINA cece cee eee eee .. 154, 481

Barinus curticollis .......04. 312

squamolineatus . oo. eeces 312

BARRIS. ccc ce cee eee eee eens 457

Baris .cciccccsseee. 35O, 357, 450,

453, 458, 459, 461, 464, 474

—— mneopicea.......-6.000 467

@NESCENS ove seees 470, 472

en) \<): 469

—— @VCA ....5- 457, 468, 470, 471

alboscutellatus .....6660. 317

ANAS. coerce ween enes 255

cy) ca 466

ASPEVA vvveeese 458, 463, 467

a 464

OUCUSPIS Lecce eee e cence 260

—— caldaria............ wee. 468

catenulatd.. ccc ecceeecces 458

CAVEINOSA . ee ee eee ee eee 465

a we 407

Page

Baris complanata ........ 343, 346

CONS 6. cee eee eee veers 470

COITUSCA veces ee ee eee 469

COPTUSCH ve eens 468, 470, 471

deformis ...... errs 465

—— durangoana ..........-. 464

—— duranyoand .....+.e0ees 457

CYUDESCENS Wc ec eereeee .. 470

fervida .......-eeee eens 462

TETVIAd vocvecerevee 457, 458

—— fluctuosa ......0.-.-00- 462

—— fluctuusd ..crereees 458, 466

—— fratruelis ...........4-+ 463

Fratruelis cecccceccvees . 469

implana,.........+++06. 468

UMPVESSA weve vec eecevee 245

INGENS 6... eee eee eee 459

—— IMOPINa «sewer eee e eee 467

INOPINA wevceecvcreceree 458

tnterpunctuta ..eeeeees . 458

interstitialis .... 02.6006 . 464

Maclaspis 2.0... eee eee 471

managuensis ..... +... .66 470

——— metallescens ......46+ 458, 463

——— metallicd ciscecscceuees 458

——- NiCATAGUENSIS 6... eevee 469

— occidua ...... re . 462

1: 458

—— plicata .isecccves .. 452, 466

prodita ........e eee eee 472

—— prodita ..... swe eeaenes 457

puncticollis .occeecseees 460

—— punctirostris ............ 47]

quadratipennis .......... 472

quudratipenms ...6.6. oe. 407

regularis | ...cceeeec eee 461

regulars see. paduesen 462

rotundicollis............ 465

rotundteolls oo... cece eee 468

rubicundula .......... .. 473

PUDTUPES Cove eceveeeeccee 464

rugosissima .........06. 463

SCOLOPACEN vse eee cece 357

serlatosetosa ...... 6.2.04. 47}

setosella.,. ce... 6... e eee 470

setosella ........ 458, 467, 471

sinuatirostris........6. .. 460

sinuatirost?ts oe eee ee 457

SOlULA vee ee eee eee 464

spissirostris ..........4. 461

spoltatd . 6... e eee cece 403

strenua ...... eeviesines 459

STPENUG cig ceeeees 457, 460,

461, 462, 493

striata woke eae 459

—— striata wo. cece . 457

Baris subrubra

—— subsimilis ..

sulcipennis

suleipennis . .

450, 457, 461, 462

Page

465

469

460

EUMIAA occ ee ee eee 457

——tortilis ................ 466

Co . . 467

transversa ............-- 404

transversad oo . 465

—— umbilicata ..........4. .. 460

—— viridana ...... Lees 458

zapotensis ........... 463

zapotensts ......46. weeee 457

Baryoerus wocccc ccc eee cceee 393

Bebelatus ......... tee 154

BRACHYBARIDIUS .......-.. 474

immaryvinatus ....... ... 474

BrRACHYBARIS. ......-+...06. 473

Brachybaris ......0ccceeeees HA

MMCLICANE oe. eceee . .. 473

mutila ...........05 2. 473

Busckia@ .... 00. cee .. 454, 497

lecythidis .........,. 454, 497

BUSCKIELLA ..... 000-000 ee) 497

—— lecythidis .............. 497

Calandra carbonaria ........ 345

COYUINE voc cece eceeeeeee BOE

—— liturata...... . wee 403

quadripustulata .....+5. 366

CALANDRINUS ........++ 339, 495

grandicollis

‘ALANDROMIMUS .

Calandrominus ..

caviventris

Calosirus

ose eee

Camelodes ......+

CATAPASTINUS .

alternans ..

—— aliernans ......

cales ...eee-

CUMER veces

Catapastus......

: CONS Per sus oe

——— nivescens ..

ruficlava .

s— yuficlava ..

signatipennis

Celetes

CENTRINIDES....

CENTRINITES

caviventris...

CASCYL. vee eee

GATAPASTUS .....

ece

aeee

eoee

ere

see OB e eee

woe. 839, 495

vevegees 863

..../ 860, 364

Lecce eee 304

weee eee BOB

seen ees 153

223

eceeees 332

veeeeees BBL

sees e BBI

beeen BB

woe. 333, 494

beees 381, 495

veces ie. 333

veceeees 494

999

2 tered

veeeeeee 495

eee

2... 333

419

... 320, 492

-@eeese

Centrinites .. 261, 325, 338, 349, 479

INDEX.

Centrinites audax

dentimanus

laticrus ....

setipennis ..

—— T-flavum ..

tibialis ....

—— uniseriatus

Centrinogyna ....

CENTRINOIDES ...

Centrinoides ....

ciliaris ....

Centrinopsis ....

CENTRINOPUS ...

Centrinopus ....

—— alternatus ..

—— erythropus

furfurosus

mistus

eee.

Centrinus .. 260

albopunctatus ......

albutectus .....

angulus ....

asphaltinus

ater ..suee

bicoloratus

PLL TT

bicuspis ....

—~ biseriatus ..

brunnitrostris

capillatus...

capreolus

carbonarius

CEMAS sees

cestrotus

christophort

COINMA 1...

conicollis

crucifer «4

curvirostres

cyanipes

Bepeeeeueuueen

—— dispilus .....

distigma ..

——— distinctus ..

—— dolus....0.

strigicollis...

alternatus...

helvinus.....

cinnamomeus

CONFOFNUS «6.0.

confusus ...

.».. 821, 322, +

—— dissipatus....

—— dissipatus ...

ee ee

. . aeee

ee eee ee

eee ee ee eee

Lee ceaeeeees

veceeaee B22,

Lovee eeeees

veveeees B20,

ce cceeunees

eee

cee ceeeeees ,

Lee eeaeeeees

beeee beeees

ve ceuesees ;

beeees veces

veceeee a

veceeeee 297

beeees veceas

bec cee eceues

bec caeeseees

bec eaeeeues

, 261, 317, 320,

ooo eee

bole te oe

Ww cst ke

mI NST CO rm GO Or

fon]

Centrinus erythroderes

germart

hospes .....se

levistriatus ....

lentiginosus

lineellus.....

lineicollis ......

MELICANUS . . 0005

miniatus ......

perscitus

PELL ITTTETI TEE EEE TEEPE TEEPE PPE Pee EE

Faleatus.......6

holosericeus ....

UMpPVESSUS v.66.

larvatus ......6.

eee ee eoe

NASULUS ......6%

oblongus......6.

obniger 6.6.60.

ochraceus ......

olfersi ws. 60.

olivaceus ......

palmarts .....

parallelus ......

parellanus ........

penicellus ...e.e.

persceillus ......

501

Page

beeen e ee 20

223, 228

261

491

300

245

416

.. 292, 319

279

270

312

223, 227, 243

weveeees L8O

ceeeeeee AVE

seceeees 415

teeeeeee ALD

325, 326

weeeeees 261

Sees 278

weeeeeee 180

weeeee 261

+. 223

weeee ADL

veveveee DUT

273, 278

perus vec eeteeeee cece 288

PUCUMNUS Loe cece cece eee 278

pilipectUS ......00, weve 226

podagricus ......6.00.. 26d

POltus voc cceeccececeee 225

PUGNAL .icevcsccccceeces DBE

puncticollis .,....., 257, 289

quadrisignatus ......6. .. 265

VELUCENS vs sseeaee .. 308

ruficollis .occcceeeeeees 280

PUfICUPNIS woe cceeeee wees 245

salebrosus ...... 292,319, 492

sanguinicollis ...... were 230

scapularis occ. wees DOE

scapulosus ........ .. 188,191

scutellum-album 292, 319

a . 261, 265

Strobeli vee eee eee ee 26]

subarmatus ........ 227, 229

suberbificus ............ 415

SUSPENSUS 4.4.2.0... 418,416

BULOM eee eee eee veces 27

SUutUraflava ....-..66... B19

tibialis. 6... cee eee. .. 492

CUNSULS oe eee cece eves ees 298

CUmidUus vee ecceseny . 225

UNOTMUS Vee eesereesee. BAY

westwoodt ........5. wee. 261

CERCUBARIS ............ wee. 450

Cercobarts voce ccceeevcees .. 461

brevicauda ............ 4051

Page

Cercobaris fortirostris ........ 451

Parva seuss sees deees 451

CERPHERES ....... ee teeees. 296

—— glabrescens ............ 256

—— glabrescens ..iseccceres 354

rufescens ....... a3 256

TUFESCENS 6c cecseeees 257

CRSENNIA wo. ce eee cece ee eee 328

latecincta ............0- 328

YEUTHORRHYNCHL .......... 152

CEUTHORRHYNCHIDIUS ...... 153

AZtECUS .... cee eee ee eee 154

——— quercicola ......0.005. .. 154

septentrvonts .... 00. eeees 154

—— wickhami.............. 158

WICKRAMI 66... sc ceceece 154

“CEUTHORRHYNCHINA ..... 188

CEUTHORRHYNCHUS ........ 152

Ceuthorrhynchus ........ 119, 153

~—— adspersulus ............ 153

affiuentus ....eceee eee 152

ASSIMUIS oe cee .. 152

pustllus ..... S laseeseseu 153

Tape ....e6% Dec e eee eeee 152

sertuberculatus.......... 151

truquid oo... .e ee eee eee. 153

Ceutorhynchus .......0.; 162,153

affluentus oo... ec ceeeee .. 152

—— fulgidus........0+..5... B94

pusillus .......04. ee e'a'e 1538

septentrionts ........ vee. 154

CHETOBARIS 2... eee eee 250

Chetobaris..... ptt teeeteeees 338

nigrosetosus ....... Beane 250

CHALCOBARIS ........ sees 456

panamensis .........+.. 456

Chlamys oe cee e cues aoe eae 140

Cholus........ wot bas 155, 205, 259

a 206

CHRYASUS.....-......-2006- 337

CRrYASUS veces 33

cavernosus ............ 337

CAVEYNOSUS 6s wa eee 388, 339

—— plagiatus .............. 338

plagiatus so... cece eee .. 837

CHRYSOBARIS ..........005. 455

corrosa ...... Wate ewens 455

COYTOSA 4.4... rr 456

cothurus .............. 456

-plurisetosa ........ : 455

plurisetosa ce eee ee 456

Cleogonus wecseecicscseceees 117

CNAGIUS woe cece eee eee eee 334

CNAG{US cece cceees Cue emes cee 336

cavipectus «......./.... 304

INDEX.

7s Page

CG@LIODES ....... SV d bee se 139

Ceelogaster ...... Geese? ve DA

CaELONERTUS ........ ese eee 335

Coclonertus...cesecesees veeee B36

nigrirostris ..........66 336

NUGVUOSEVIS vee ceceecces 335

—— squamulosus ......00.06- 335

COLEOMEROPSIS ..........-. 210

Coleomeropsis oo. eee e cece 334

cribricollis ............ 21L

COLEOMERUS .........00005 209

Coleomerus ...seseseee 211, 3384

CDENINUS . eee vce ceeaee 210

isthmicus .............. 210

—— lugubris ..ccceeeeeeees 210

MELUCANUS eo eeecssceees 210

rotundatus ............ 210

COLUTHUS. 0.6... cece eee e eee 334

COlUthus. ccc cecccceees 335, 336

cribrarius ............ .. 835

CYUbTATWUS 6.0.6 ec eens .. O84

Conoproctus ..ccccccesesceee 360

d-plagiatus ......6. 360, 366

Conotrachelus ........%. 154, 178,

179, 189, 193, 194, 454

Coptorus vie ccececseceees .. 69

Copturodes oo. cecccccc eevee 35

Gdspersus ........0. . 40

COPTUROMIMUS .......0000. 60

Copturomimus ... cee. cee wees 65

asperatus ......... 2686. 63

brevicollis ............ 64

—— ceruleotinctus .......... 62

ceruleotinctus ....6.6- 60, 63

CINEYEUS.. 2... kee ee eee 64

CUNETEUS bse ca eeweceees 62

confluens .............. 64

CONMUCENS «oc ccevceveees 63

ochreonotatus .......... 60

- ochrofasciatus .... 60, 64, 65

octocostatus ..........6. 61

OCtoCostatUus 6... eee eaee 62

—— rufocinctus ............ 61

—— SpalsuS ......e. eee eee 63

SPUTSUS oo coven ccc evens 64

—— stridulans .............. 62

stridulans ......6. 000 64, 66

CoprTruUROMORPHA .......... 65

Copturomorpha oo... cece eens 60

albomaculata .......... 67

—— albosignata ........... . 67

albosignata .........00. 68

funerea ..... cece eee eee 68

PUNETED oe ee cee eens 102

—— interrupta ......6..... 66

—— interrupta cece cneee 65

Page

Copturomorpha leucosticta.... 68

leucosticta ........ as 67

-—— rugipennis .....,...... 67

—— ll-notata ..........00.. 66

L]-notata ....euees . 67,111

Copturophanes ...euweersere- 73

Copturosomus .. 62,.69, 73, 99, 126

COPTURUS .........-0005 69, 479

Copturus...ceeceeees 1, 33, 48, 538,

60, 85, 86, 91, 92, 93

AASPEVSUS 26.0. cove eens 40

—— albidus ............00-- 85

AMCCDUS ... eee e ee eens 8k

AMONUS oe cence eeee 82

AYMULUS ee eceenceeces 5d

atrosignatus ........... vo 19

avicularis ..........-- .. 70

AVICULATIS Luce e cere ewes 69

_—bicinctus ............. .. 83

Dicinctus coe eceeceeeees 84

—— bispinus ..... 0. see eee 71

—— brevis cee ee 45

centralis ...........-. . ‘@1

centralis 69, 72, 73, 127

cincticollis ............ 77

—— eincticollis .......4.. 78, 85

constrictus ........+-.. 73

conturbatus ............ 78

eribricollis ............ 480

deplanus ...........0.. 71

—— deplunus wicsececcaes .. 69

exaratuS .........0000- 72

CLQATALUS voce cece eee 69, 127

eupletus vicceecccccces 70

fausti... 0... eee ee eee 479

fulvocruciatus ...... 82, 480

fulvomaculatus ........ 74

Julvomaculatus .... 78, 81, 92

fulvosignatus .......... 84

Fulvosignatus oe. cnees 69

— furfuraceus ............ 85

Surfuraceus .....ceeee 53, 69

gracilipes .........6.00. 83

gracilis .............06- 80

GTACUAS Lecce ccc ceeee . 81, 92

histricus ..........000- 81

histricus occ eceveee . 76, 82

ignicollis .............. 84

TJUMUS oe ee ec scees 105, 106

— » var. auritus ...... 106

—— » Var. senilis ...saces 105

JAVE oe cee cccccccccene . 63

lamprothorax .......... 79

lamprothoraz...... 58, 63, 69

— » Var. lattor ........ 79

latericollis.......4. weeas LOZ

Page

Copturus latitarsis .......... 86

datitarsis ..ce ec eee eee 69

— lebasti eee ec ce cee eees 100

—— ludiosus................ 80

—— ludiosus.......... 69, 81, 480

—— lynceus................ 74.

maculosus ,........... 75

—— maculosus ..........6. 76, 82

——marte ........ wecenese 70

MAITE voce ve veceees 57,479

— mexicanus ...........- 71

———_ MEXICANUS cae eeeeceees 69

——. Mintatus 6.6... cee eeee 78

MINULUS. oo eee cere cence 118

montezuma ...........- 76

MONLEZUNA vo ceereceees 77

—— multiguttatus .......... 82

—— multiguttatus .... 83, 84, 480

—— musicus eee eens 60, 65

neohispanicus .......... 77

NEORAISPANICUS ..... 00s 69, 76

OPPREUS 6... cee eens eeee 70

PATOLICUS 16... cer eee eee 107

—— quadricinctus .......... 80

—— quadricinctus .......... 59

—— quadricolor .........+.. 78

quadrimaculatus .....+.- 88

TeGaS ....006. eee eens 43

rhombifer .....00.e evens 74

—— rubricollis ...... Sekssese 77

— ruficollis ..........+.- 78

SCOPRA wi. ceceeeceneees 71

- BENCL oc caceccercreceecs 94

SEViCCUS «1. we eee eee es 7

SEVEFINE oo eee ces cece 61, 77

: suturalis, sscccvssceeeee 74

torquatus .........5+56- 78

tricolor... ewes e eens 7

tricolor ....e.eeaeeees 77, 87

tristis va csecceeceeeees 85

-UNdAtUS. .. eee eer eeeeee 83

—— unifasciatus .......-.+.+.- 73

VeITUCOSUS ......++0-0% 72

VEVTUCOBUS vee eeeeees 69, 73

VESEILUS 6. ccc ceeeeceree 99

CRATOSOMUS....+--+ eee eeees 2

Cratosomus ...ceccecceceees 1,5

annulipes .......++eeeee 3

annulipes ....eeceeeeees 2

—— aspersuS ....eeeeeeeeee 7

- GSPETSUS vss eerercveees 2,3

augustus .......++-e+6- 6

AUGUSTUS Josesreeeeeeers 2

—— bidens .....--+-seeeees 8

—— Bidens ..scccreerecencs 3

Dombind......seeee seeee 8

INDEX.

Page

Cratosomus b08 6... 6.60. cece 7

COPECLUS Wo. cece ee eee eee 4

——— cuneatus .........-.06. 8

CUNCATUS 2... .eeaerseces 2,3

ACJEANT ove cece ceeeces 8

gemmatus...... pee ceeee 5

GEMMALUS Lecce ceevaee 2,9

glandulusus 1.6... . 60. e ee 4

lafontii .......... eoeeee O

lafontti .......... ceeaee 2

MELICANUS ... ec cere eeees 3,4

——— MestUS Leer ee ccnenee 4

——- NOAUETT vee cv ccceecees 3,4

pulverulentus .......... 7

pulverulentus.....ccceees 2,6

punctulatus .........-.. 3

punctulatus ........ 2, 4, 20

pustUlatUs oo. cecvecceees 3, 4

rotundicollts .....ceeeeee 4

SAUL. Lecce cece eens 4

—— 7-maculatus .... 0.0.60 4

Splcatus.......... eee eee 6

SPUCAEUS . cece cece eeeee 2

SUDfASCLALUS ...cceeeeee » 4

LAUTUS ve cc eccccevecece 6

VAGINANS we cseceseseeee 6

VATICOSUS se cceccessecee 6, 7

Cryptorhynchus bufo... 0.6. 14

OCULAEUS. 6. cece eee eens 103

sanyUinicolls sec eecees 230

Curculto trroratus.... cee cece 175

penicellus oi. .cesvaveees 491

PerscitUs wi. ceecceceees 273

PUCUMNUS 1... ees seveeee 278

CURCULIONIDH .......ce0ee 1

CURCULIONINAD oe sees e eee 1

CYANOBARIS...... Seer 415

rufiventris............. . 415

Cylindrobaris brevirostris .... 336

CYLINDROCERINUS ........% ., 257

tubifer ..............4. 257

CYLINDROCERUS ........ 237, 487

Cylindrocerus ......65.. 2238, 231,

257, 268, 345

AZUPOUS 6... eee eee wees 225

circumlineatus.......... 240

circumlineatus .....6260. 238

COMMA 2... 6... ee eee 238

COMMA .icccsccrecceees 239

—— glabratus .............. 242

Glabratus .occesvccereees 238

glabripectus .........+.. 239

glabripectus ....4. », 238, 240

insularis .........00- ~. 487

—— lissonotus ...........00. 241

lissonotus ....... ee. 238, 242

503

Page

Cylindrocerus longipennis .... 241

longipennis ........ 238, 487

maculatus .......ceeeeee 494

—— madaroides ............ 239

—— madaroides ........6005 238

BUJNUMN ove eccccrcveeee 238

SMATAGAINUS ... 6.666.206 229

squamipectus .......... 240

SQuamiIpectUS.. 6.6... 66046 238

subulatus .............. 240

SUBULATUS eee eee e eee 233

CyLINDROCOPTURUS ...... 35, 479

Cylindrocopturus ...... 36, 387, 112

adspersus ..........000- 40

GdSpersus .......0e cece 36

—— albonotatus ............ 40

albonotatus .......... 36, 112

armatus ............006. 39

AYMALUS Loe ccc ceecee 36, 40

bicaudatus ............ 38

brcaudatus.....ccccccees 36

bifasciatus............. , 41

Difasciatus.....cceceeee . 36

biradiatus ...........0. . 37

biradiatus .......... wee. 86

elongatus ..........000. 4]

Clongatus ....cscseeee 36, 42

ganglbaueri ............ 37

—— ganglbauert ........ coe. 86

—— imbricatus............. . 39

—— imbricatus........ 36,40, 112

—— mammillatus........ owe 89

scaphiformis ........ 41, 479

scaphiformts ........600. 36

tetralobus...........0.. 38

tetralobus ........004. 36, 39

triangulifer ......... wee 87

triangulifer ....se.ee.e. 86

Cyphocopturus tristis ...... 75, 85

CYRIONYX ..... ec ee ee eee 188, 484

Cyrionye ...... 181, 185, 189, 190

—— acutecostatus ........ .. 198

—— alboguttatus............ 485

—— alboplagiatus ....... we. 201

—— alboplagiatus............ 485

—— albovarius.............. 484

ambatoides .......... .. 202

ambatoides... 00.00.0000 203

—— aplatus ............ wee. 200

Apiatus 6.16.5 ++0466 199, 202

—— apicalis................ 201

balaninoides............ 194

bilineatus .........0.. .. 198

— bilineatus ......... ewes 199

—— biplagiatus .....4.. 188, 203

—— camelus..... seneees 195, 484

504

Page

Cyrtonyx camelus ..... faeives 188

CAVIrOStTiS... 6... eee eee 195

CAVINOSEITS Coe ec cece eee 189

clathratus .....-....e eee 200

clathratus 6.6... 0.0. 201, 203

—~~ conotracheloides ........ 191

—— cristatus ...... eee 1938

—— eristatus vec cece cee 194

—cuneatls .....ececeeeee 195

——— decemcostatus .......... 190

-—— exaratus ......... ‘ 205

CXIQUUS ...000. eee. .. 198

——— CEXUJUUS vier ccccevenes 205

fuscitarsis......... wee. 197

fuscovarils ..........6. 204

—— gibbicollis......... eeeee 193

—— gibbicollis .....cccc cece 194

—— humeralis.............. 196

—— humeralis wc... cece ccces 197

—— levirostris........ iedews 197

maculicollis .........5;. 192

nebulosus .......... 204, 485

——- nebulosts .....e.ceceees 197

~-— nigrosellatus............ 194

——~ nitidipennis ...... cesoes 199

niveipictus ............ 202

oblongoguttatus ........ 203

——— ochreonotatus .......... 202

—— octocostatus.........6.. 191

octocostatus ........ 190, 192

reticulatus...........06- 192

VELUICULAEUS... eee cee ees 191

—— scapulosus........ vale eee 191

gemicostatus.........00. 199

SEMIUCOSEALUS 06... cece 485

—— sexguttatus ............ 201

sexguttatus . 200, 202, 485

——— squamans .............. 203

SYUAMANS oo ececcees 196, 204

—turbidus .............. 196

turbidus..... Woeeededeee 204.

CYRTOBARIS .:...... dap aw 4 476

—— bigibba ................ 477

—— bigibba wo. eee eee eee 476

Dactylocrepis...... cenv@eeens 360

DAMUPUS occ ce ccccceees 69, 84

DEIPYLE 2.0... ..6 cece cee 402

induta ....... ccc cea 402

——— INUUEM voce icceccccees 403

seminuda ad vee ees ee 403

——— BEMINUTA Loe cececceee 402

DEIPYRUS 00... .... ec cece eee 338

hirsutulus.............. 338

Desmoglyptus oo... .. cece, 45]

INDEX.

Page

Desmoylyptus crenatus .... 387,418

DIASTETHUS ....... ‘ea lea 223, 486

Diastethus...... 235, 248, 261, 496

AECL ada e idea's wea e 227

—— ater ...... 228, 229, 230, 233

AZTECS eee cece wees 231

azteCUs ....6+.. 228, 228, 229

—— bidentatus..........4... 282

—— bidentatus.......sceeees 233

brevis ......... 20 eee .. 229

————— Brevis. ccc cece 233

castaneus ..........606. 233,

christophort ..... 00000. 226

—— corvinus .............. 228

erythroderes........ 1... 2380

eurhinoides ............ 224

—— falcatus............ 228, 486

falcatus ccc cicccccccees 229

—— gracilirostris............ 231

gracilirostris.... 224, 232, 487

hirtimanus ............ 487

—— humeronotatus.......... 234

—— humeronotatus ...... oe. 233

humerosus....... Csewes 208

Aumerosus........0. 235, 487

impressipennis....... 233

—— interruptus ............ 232

—— MeEXICANUS. ..........06. 227

MEAICANUS voce ceecee 228, 233

Obliquus ..........666. 235

—— pallidipennis............ 235

pilipectus .............. 226

—— pulipectus .......... 227, 232

——pilipes: ..0e.........4.. 229

‘politus ...... et teeeeees 225

— ruficollis .............. 230

rufipennis .......+...06. 234

—— TUfiPENNIS oe ee cece 235

sanguinicollis .......... 230

—— sulcipennis ............ 226

superbus ............4. 225

—— tumidus........... weees 2H

——- violaceus .............. 225

DIETZELLA oo... ee eee ee eee 151

sextuberculata .......... 151

Dinorhopala .iccccecececeees 131

Diorygomerus vececccceceees 211

DIORYMERELLUS ............ 252

Diorymerellus ...... 255, 256, 496

eastaneicolor .......... 254

eastaneicolor ........ 258, 255

— decemstriatus .......... 253

—— ]2-striatus -...... ws 254

—— 12-striatus.. 0.6... cee 253

—— histeroides ............ 255

histeroides...... 252, 253, 254 |

Pace

Diorymerellus levipenris .... 253

—— levipennis .......... 252, 254

—— obliteratus ............ 252

—— octostriatis ............ 253

—— octostriatus .........40. 254

—— rubripennis ........... . 265

—— rubripennis .........44. 253

DIORYMERIDES...........4.. 209

DIoRYMEROPSIS ve ebnde ts 248

cavimanus..........6205 249

COUIMANUB oie c ec ceees 248

disjunctus.............. 248

——— disjunctus i660. cece ee 249

—— piceicollis.............. 248

——— uncatus...........000.. 249

—— UNCAUS Lee cece eee nee 248

DioRYMERUS............ 211, 485

Diorymerus ........ 209, 223, 245,

-- 252, 255, 260, 454

bistriatus .............. 219

—- bistriatus ....... 6. cee 212

— canaliculatus .......... 221

—— cribrarius .............- 217

—— eribrarius ooo. eee 218

——— denticulatus............ 2138

—erythronotus ...... 220, 486

—— erythropterus .......... 215

CXArAtUS Lee eee ee eee 216

CUVATALUS eee ccc eee 222

fossulatus ....... 00.000 215

—— levipennts o.oo ceeeeen - 486

—— levipes ........ na glee aieas 214

—— levipes ........ eee. 211,215

leevissimus ............. 221

—— levissimus. 00.0.6. 214

— Jeviuseulus ............ 214

—— leviusculus ............ 217

—— laticrus ................ 217

latus 2.2... eee ee eee ee 216

longirostris ............ 219

—— longirostris ..........0. 220

NIQTIPES. ........ ee ee eee 220

NUGVUPCS eve veccens 212, 486

Ornmatus ... ec. ee eee ee eee 218

Ornatus oo. .cccccvee eee. 212

OVAatUS Lo. 6c eee ee ee 217

—— perlevis............ 214, 486

POvl@Vis . 6. cic ccccceees 219

—— punctatus .............. 216

—— quadristriatus.......... . 219

ruber..... bade e cc eeeees 486

rubricatus............. . 220

—— rubricatus .iiieccccceces 486

—— serripes............ 213, 485

——— BEITIPES Lec eevee cece 216

— serrulatus .............. 222

Page

Drorymerus serrulatus ......-. 221

sexstriatus.........0000. 218

suleatulus .........0.085 486

-——— sulcatus. ..........00085 222

SUICATUS Voce eee eee 486

—— tibialis 2.0... ee eee 213

DOLICHOBARIS .......0. 0008s 417

Dolichobarts co.cc ccc eens 418

longitrosty tS cece cee eee 418

——— opaciceps ......... ee ees 418

OPACWCEPS oc ccceee recess 417

schwarzi ....ee. eee eee 418

Drepanambates 6.0.0.6... cee: 155

Dyorimérides........ vee eens 209

Fegrvius vc ivcceccc cece cc cenes 139

IELLIPTOBARIS .......0000005 250

nudicollis ...........05- 251

—— nudtcollis oo... 00. cee 399

setulosus ........0 00s 251

setulosuS .. cc. eee eee 25

Embates oo... ccc eee 155

CRCUS voce eee 163

EMnops occ cece cree eee eeeees 154

Epilobaspts.. 0... 6c cee eres 385

Euch@tes viccccccccccrceees 341

CORUNA vec cece eee eee 342

Eucopturus ......+ 46, 70, 74, 75

——- MONTEZUMA sevveererees 76

EUGEREUS wie cece renee eee 259

discifer ..........2+4-+. 259

unifasciatus .........66- 259

FEULECHRIOPS ....---eeeeeee 109

Eulechriops ....0. cece vee 91

albofasciatus.........655 116

albofasciatus .......++-++ 113

——— albolineatus ........+-.- 120

angusticollis ........+++- 126

DOOPS. i... c eee eeeeeeeees 113

brevipes ......-- vee eee 114

Drevipes ws. ee ceeceeeenee 123

CimervasCeNS .....-2eeeee 119

——— conicicollis ......... ... 125

Contcicollis.....ecece eens 126

——— GOTUSCUS ...eeeeeereees 122

COYFUSCUS. ose cece ees 110, 111

—— cylindricollis ......-+.. 119

ductilis ........++- seeee 121

—— ductilis .. cc. ce eeees 111, 122

=— erythroleucus....++++ 117,118

elongatus ...- see eeee ees 118

—— filirostris .......-eeeees 126

flavitarSiS .....-+eeeeeee 115

leevir0stTiS.... see eee eres 122

—— levirostris....ereees 110, 128

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, April 1909.

INDEX.

Page

Eulechriops leucospilus ...... 128

longipennis ........-.0 118

longipennts ....0005 119, 123

-—— lugubris.......... bee eee 1l4

maculicollis ........ . 124

macultcollis ..cccececees 116

—— melancholicus .......... 114

—— melancholicus ...cveeees 120

——— MEAS ..r verse even ceees 118

——— MELUB cece cen n eee 114

———— MUTICUS. eee rece ee eee 116

—— nigrolineatus .......... 112

——— nigrolineatus......eecees 118

~——— nitidus ............006- 122

-——— nItIdUS ccc ences 110

—— ochraceus ......-e essen 111

——- ormatuls ... ce eee ee eee 116

——— OP NALUS Lecce cer eees 117

—— perpusillus..........-04- 117

plagiatus ........eeeees 128

pusillus .....e eee ee eee 124

PYAMLUS . oe eee eee eees 121

scutulatus.........0550e 119

scutudatus.. 110, 111,120,121

septemnotatus.......... 111

septemnotatus ...... 110, 121

seriatuS 6... eee ee ee eee 117

sexnotatus ......eee eee 120

sibinioides .......++e6- 125

squamulatus ........-. 112

SYMAMULALUS Coc eeeees 110

tenuirostris .......0e 6 125

—— tenutrostris ......+: 110, 126

tuberculifer .........0-- 115

Eunyssobta .scceeeeeceeeeee. 341

——— CCHIUNA vv iccccvcvcnces 342

EURHINIDES..... 00s eee eeeee 393

FURHINOPSIS 1... sees econ 397

Eurhinopsi8 voccccrceveccees 398

@IUGINOSUS ....- ee eee es 398

viridicolor .......+.+6- 398

EURHINUS. wc cece cece eee ees 393

Eurhinus ..cceceeeee ees 228, 398

—— atritarsiS ........e eee 394

chevrolatt .......065 393, 394

CUPTALUS vo eevceerveees 395

——- CUPTIPeS 2... seen ee eee 399

CUPVIPCS ove veveeececes 394

CYANEUS. vee eee 395, 398, 399

festivus ..... eee eee eee 395

festivus .. 398, 394, 396, 397

—- , var. magnificus .... 394

— , var. suturalis ...... 394

MAGNUPICUS veer eevee 396

—— malachiticus ......++ 394, 398

—— 00CULEUS Lorre rece eenee 394

Page

Eurhinus subcylindricus ....+. 395

SULUTALIS Liccsvenevenes 3896

~viridipeS ...seeese renee 395

VUUAIPES vee eccerveeees B94

VITUS cece nce veer cenes 39-4

yucatecus ........eeeeee 397

YUCALECUS creer caverns 394

TUS yYPages vvvvvvacccceee 185, 189

EUTOXIDES 1... .eee cere ees 360

FXUTOXUS vee eee eee eee eee 360

ELUtonus oc cece cece eeeee 363, 369

foveatlS ......eee ee ees 360

—— foveatus ......000 361, 362

fraternmus ......00.seee 362

——— fraternus ..ccccecrveces 360

—— lacordairel ......0.0--- 361

lacordatret si... cee 360, 362

plicatilis ..........0055 361

plicattlis .iccveccaeceee 360

6 [Lo 361

EXUZURUS voc cee ee eee tees 45

—— ornativentris ........++ 45

GANYMELA voc ce cece eee . 399

Mtida .r.ceeeeeee reece 3860

FC (rr 384

Gelus oo ccc ccc c eens 91,93

OCULALUS oe eee ee ees 103

GERAOPSIS 1... sees eee 327

duplocinctus..........6 327

duplocinctus ......+ ween. O28

GERBUS .... ee eee eee 260, 488

Ger@us veaeseeaes 261, 310, 312,

317, 820, 327, 329, 494

albiventris .........065 291

albiventris oo... cece eee 292

albolineatus. ............ 2Qe2

albolineatus ......000065 283

albosetosus .........-5. 302

albotectus .......46. 307, 311

——amplicollis .........--. 280

—— amplicollis.....cecereees 281

—— arcuatirostris .......... 262

—— arcwatirostris oe ..ece eee 327

—— ASPETSUS 2... sees eee eee 290

——— aspersuso. see eee eee QOL

—— balaninoides............ 268

——- basinotatus ............ 286

—— basinotatus ........006 ARQ

bicruciatus ....:..-.... 296

bieructatus ....005- 273, 488

——— pifureatuS ............ 294

—— bifurcatus ........ 261, 239

—— biplagiatus ............ 268

—— biplagiatus ..secsevenes 261

3 TT

906

Page

Geraxus bipustulatus ........ 264

bipustulatus v.61 sees eees 328

bituberculatus.......... 277

—— bituberculatus ........ .. 488

breviculus ........... . 809

candidus ...........06- 299

candidus ...... .... 300, 491

— capillosus.............. 303

—— COEMAS wwe eee eee eee 267

——ciliatipes ............ .. 296

—— coarctatus.............. 281

coarctatus .... 261, 282, 298

—— convexiusculus ........ 277

—— corrugatus ........-.6. 808

costatus 2... ... eee eee 489

crucifer...... cece cereee 203

crucifer vo. eee ee 274, 297

curvispinis ............ 285

decemlineatus .......... 295

—— dispositus.............. 308

Aistigma ......0e. weeee 267

dugesi so... . eee e ee eee 296

——duplaris .............. 281

—— duplaris vicceseeeeeees 261

—— duponti............ vee. 807

—— duponti .......eececere. 808

farinuosus ..........000- 307

farinosus ...... cece ees 309

Jinitimus ...... eoveeeee 488

——. flagellifer .............. 272

flagellifer oi... ces wees. 261

—— furcifer................ 287

—— furcifer........ Saae eae e 294

—— gaumeri ....... eeseees 298

—— gaumert ...... we. 299, 327

-—— ventilis...... wae e bees 284

gracilis ........ 0c... eee 276

—— gracilis ........ 277, 488, 489

—— hirtipes.............. .. 274

—— hirtipes.... 0. e eens 275

hospes .......+.. .. 300, 492

—— hospes ........ 801, 3807, 488

—— inchoatus ........... ».. 802

tnchoatus ......+. weeees 308

—— incolatus ...... saweees . 300

ancolatus ........ Via wins 301

INETS Loe eee eee eee eee 297

MENS oo eee cece eee 282, 298

—— inornatus ...........06. 270

—— mornatus ........ weno 489

lentiginosus .......... .. 279

lentiginosus .... 280, 307, 308

—— leucomelas ............ 805

leucomelas .....44. 261, 806

lineatulus........... ... 297

—— lineellus .......... wae 270

INDEX.

Page

Gereus lineellus ........ 271, 272

longiclava. ............. 290

longiclava 291, 355, 494

longiusculus...... saws 34

—— longiusculus ........ we 805

—— managuensis .......... 278

—— marginatus ......6.00e 273

—— mendax ..........5.5. 308

—— mendax .......45. 307, 309

—— metoecuS ..........406- 280

—— nubifer ............004. 306

——nudipennis ..... veceeee 809

—— octomaculatus.......... 2738

—— octomaculatus ...... 261, 297

—— omiltemez......... wee. 295

—— omiltem@é .......... 261, 296

orichalceus ............ 293

orichalceus ........5065 294

—— pallidicornis............ 304

palledicornis ..... 6.0.0 488

pauxillus .......... .e.. 308

—— penicellus.............. 49]

penicellus .......4. wo... 489

perscillus .............. 277

—— perscitus .......... 273

persceitus 6.6.66... oe 274

PEXUS wo. cee e ee ee eee 288

POLUS. coe ccc een cnnee 264

—— picumnus.............. 278

——- picumnus ...... 307, 308, 488

pilosus ................ 262

PUuOosus voce ccvcceceuae 257

—— podagrosus ............ 264

—— puellus...... seeceveee. 299

puerulus .............. 490

pugnax ...........ee eee 286

—— pugnar.... 231, 285, 321, 489

puncticollis .......... .. 289

puneticollis ....ce eee .. 261

rectispinis ........ 265, 488

rectispints ....400. 264, 268

——rubritarsis ............ 301

scabripennis ........ 0.4. 288

—— scabripennis ........0005 284

—— scabrosus .............. 269

—— scabrosus ........6. 270, 489

—— seltults .. cc. c ccc cece 293

SCILUS 2... ee eee eee eee 293

2 294

—— sculpticollis............ 284

sculpticollts 6.0... eee eee 285

—— scutatus .............. 289

SCULALUS . 6c eee ee eeee 290, 291

senilis ...... cece weres 265

senilis ........ 266, 284, 325

—— serratispinis ............

Page

Gereus serratispinis .... 261, 268

simulator .......... .... 279

SUMULALON oo. ee eee cece 280

sinuatipes...........005 275

sinuatipes .......... 276, 491

sinuatispinis............ 263

SINUALISPINIS . vee ee seee. 264

SE ee 479, 490

spiniger.............0.. 274

——— SINIGEN vee eevee 275, 276

—— spinipectus ........ 20. 26

—— squamirostris .......... 488

—— squamitrestris ..... 1.666 489

StPUATUTOSEP IS. oe ee 281

subseratus..........000 294

subinermis ............ 488

SubiNErMIS 2... cece ees 489

submaculatus ...... . 287

submaculaius ...... 299, 490

—— teniatus ............6. 272

—— teniatus .......... 261, 306

tedpanus ......... 00048. 306

LEAPANUS ve cee eee ee eeae 308

TECTUS 2. eee eee eee eee 292

tenebricosus..........4. 285

tenebINCOSUS 66.0664. 286, 489

tenuescens ............ 305

LENUESCENS . 1... eee cence 306

tenuiclava.............. 291

LEMUICIALA 6. ee eee eee 494

tenuispinis ............ 266

tenuispinis .... 267, 268, 269

—-— tenuistriatus.......... .. 49]

tetrastigma ............ 271

tetrastiyma .......4 . 272, 823

tonsilis ..... 02... eee 298

tonstlis ve... eee 276, 299

300, 488, 490, 491

tonsuSs ..........00000- 490

— trilineatus ..... ea eewes 267

trinotatus.............. 266

—— trimotatus..........000. 267

triplaris.............00. 275

0 Cn 261

trivittatus...........08. 271

—— trivittatus.......... 272, 296

—— tuberculifer ............ 288

—— tuberculifer .......0.0.. 294

——- tumidirostris .......... 283

—— tumidirostris 66... ..06. 284

—— undatus ............4. 269

—— unicornis .............. 288

—— VATIPES . 0... cece eee eee 304

—— varipes........ 261, 305, 488

VATIUS 66... eee eee eee 301

VATIUS Lecce cc eens 261, 302

Page

Gereeus viridicans .......... 292

viridicans .......... 293, 294

—— x-notatum ......., 282, 489

wenotatum ........ 261, 803

Glycarta cece es 154

GILYPTOBARIS .............-. 405

Glyptobaris . 379, 402, 407, 479

erulsa oo. ee 404, 405

lecontei..............4. 406

lecontet . 6... cee eee eee ee 404

—— liturata.... 0... eee. 404

—— rugata ................ 405

—— rugala .....6...... 404, 406

—— rugicollis .......... 404, 406

—— simplex................ 406

—— simplex... . 66... cee ee 404

solarii .........-...02. 405

Solartt oo. eee eee eee 404

spinigera .............. 405

BPINUGETA oo cc eee cvaee, 404

GOrgus coc cece ce eens 2

GYMNOBARIS .....5.....-0. 420

brevidens .............. 421

brevidens ...... 04.0050. 420

NUIGEFTIMUS eee eeeeeee 421

planipectus ............ 42]

GyPOtus occ veer ec cce eee cees 35

HELLERIFLIA ..........005- 32

longicollis ............ 33

Heterosternus .......... 425, 427

CANDO. Le cece cece nee 425, 449

FTilipus . 0. cece 155, 157, 180

Ctreuliferus oo ccrveccves 164

HopLocoprurus............ 53

GYMAtUS vec eecvveees 54, 59

basalis ............0005 57

costatipennis .......... 56

costatipennts ........ 53, 57

densuS ........- eee eee 59

CENSUS ce cscvceeecseees 53

elegans ......00- ee eee 58

ELEGANS Lovee se vcnnees 53, 59

—— furfuraceus ......+-0-6- 85

javetl we... cece cece 53

JADE ccc cece cence 52

leptopus ..........+4e- 59

leptopus ....0-.05. 53, 54, 60

MAY 2... eee ee eee 58

——— NIQTIPES 2... eee ee eee 54

A 52

nubilus ............068- 55

—— ochreicollis ............ 57

quinquevittatus ........ 54.

quinquevittatus.....seees 56

INDEX.

Page

Hoplocopturus scintillans .... 58

SCINCUIANS 66... cece eee . 72

—— spinipes.............0.. 56

—— sulphureus ............ 55

—— sulphureus. oc. cc ceceess 56

—— VaTIP€S we... eee eee eee 59

——— VENUES eee ce eens 54

HypocaLIODES ............ 139

Hypoceliodes.........04. 145, 149

angulatus .............. 145

angulatus oo... cece cee 140

—— bicarinatus ............ 141

—— bicarinatus .........4.. 139

—— chiriquensis ............ 144

—— chiriquensis ........ 140, 145

—— coromatus .............4. 143

—— coronatus.. 139, 140, 142, 144

—— dietzi............. 000 e. 143

—— dietzi ... cee eee 139, 140

gibbicollis.............. 142

—— gibbicollis oo... cece eee 140

granulatus .........0.. 140

granuatus.......06, 139, 141

insequalis .............. 140

MEQUANS Co ecceeecceuee 139

obliquus ............8, 145

Obliquus.... cc. c eee 140, 148

——- phytobioides............ 144

—— phytobiorides .... 140, 142, 149

pulvereus .............. 142

—— pulvereus ...... 139, 140, 143

unguiculatus .......... 141

—— unguiculatus.... 0.6.00. 139

wickhamt ...... 142, 148, 144

TIYPOPLAGIUS ......-..0000. 32

—— pectoralis .............. 32

TASIDFS oo... ee eee eee eee 209

Tasides oe cies 205

cincticollis ............ 209

Idiostethus tubulatus. . 250, 257, 324

Tsotrachelus .... ccc cece 117

brunneus ... cee. eee eee 117

Lemorchestes. 0.000. c cece 130

LAMPROBARIS ..........+0.. 246

cucullatus..........0... 246

cucullatus ... 0... cee 247

rufonotatus ............ 246

LARIDES oo. eee eee ee eee 34

cavifrons ............0. 35

TArinus voc vcccccvcvccevcues 2

LASIOBARIS ......... 000000 492

—— geminata .............. 493

Page

Lasiobaris wickhami ........ 493

WICKRAME Loe ce ccec veces 492

LECHRIOPS ...........00 91, 480

Lehriops sv vvceveccan. 69, 85, 90,

93, 101, 109, 114

—— albisquamis ............ 93

—— albisquamis oc... eee eee 94

—— alboguttatus............ 95

— alboguttatus .... 98,103, 104

—— alboterminatus.......... 108

—— albovariegatus.......... 97

—— amplipennis ............ 95

——analis.................. 105

—— auritus .............0.. 106

——_ aurttus 6.6 .6.. 107, 108, 111

—— bicolor ................ 104.

—— canescens ..........000. 3

——— CANESCENS oo. eeeseees 91, 94

—— centrosignatus .......... 100

—— Coarctatus..........00.. 99

—— coarctatus ... ccc cee aes 100

—— copturoides ............ 92

—— copturoides ........4. 91, 115

—— UISCOYS Led ieccvcecccess 103

disparilis ...........0.. 102

durangoanus,........... 109

erythrorrhynchus........ 480

EXCAVALUS ..... cee ee eee 98

CXCUVALUS vic ceccaccanes 101

exsculptus...........60. 94

CLSCULPLUS Voce eececeuee 95

eXtritus ...... ce eee ee eee 101

CVTIIEUS Ce cee nee 102

festiVUS ...... eee ee 107, 481

flavofasciatus .......... 109

Jlavofusciatus ........4. 123

Rellert voce ccc cece 105

infimus .............00. 105

UMPIMUS eee cc ceces 100, 102,

103, 104, 106, 481

infisus ...........0000. 106

IMPUSUS .. 6.60. biwcdenee 107

lebasi..... cece eee ee eee 100

LEDASE. oe ceca 101, 102

—— maculiceps ............ 98

——— MACUNCEPS oer cnecnee 99

—— nitidicollis ............ 97

—— nitidiusculus............ 103

—— oblongulus ............ 92

—— oblongulus... 0... .06.0.. 109

— ochreoguttatus.......... 101

——oculatus .............. 108

—— oculatus.. ccc. ccee . 100, 104

—— parilis .............0.. 100

—— parilis cee eee aes 103, 102

—— paroticus ............. . 107

3TT 2

508

Page |

Lechriops porcatus .......... 108 °

POreatus ..sseceees 101, 104

—— quadripunctatus ........ 102

rufomaculatus .......... 96

-—— rufomaculatus ......445. 480

rugicollis ....... ec sees 96

——— UgtCOIMS Li vcervcecenes 97

SCUUTUB cc ce eee eee 69, 114

SENCL vivevvses peer 4r 9+

BOdUNS .. cc seeeeeee 105, 106

—— squamirostris .......... 94

—— StiCticuS........ eee e eee 104

CUPEUT —veceeecceees 105, 106

vestitus ....... cee ee eee 99

— VestilUS 66... .e eens aware 100

VICINUS 1... eee eee ee aes 96

VUCINUS Lo eccccvececeaes 97

LEPIDOBARIS ..... ve Ween wa 408

Lepidobarts ........ vetewens 453

acnisti ...... ceeeeeeee. 409

aenistt ......6. 408, 410, 411

—— bifasciculata............ 410

—— bifasciculata........ 408, 409

latisquamis ...... eens 410

latisquamis ........ 409,411

—— nitidipennis ............ 411

—— nitidipennis ......., 408, 409

—— opacipennis ............ 409

OPACYPENNIS we. .ecee 408, 411

LEPTINOBARIS ..... veseeeeee 416

Leptinobaris ....... Sinise sede 417

bidens ..........0005 .. 416

Leplobaris ...... ec ceeeesees 416

bidens...... das 44a <4 .. 416

“LEPTOSCHGENUS .......+00-- 494

Leptoscheenus.......eces 329, 479

gratwsus ...... ga svatew 3829

maculatus ............. » 494

MACULATUS Wo. cece eee .. 829

Leptoschotnus.......ccceceees 494

MACULALUS .... cee veveees 494

AAORNUB coe cccccecerececoes . 415

LIMNOBARIS ..........4. 363, 496

Limnobaris .... 312, 325, 335, 338,

849, 850, 355, 418, 419

——eeneola ..... er ee 353

@nCola ..,...0000. 354, 418

s— wyaria ,,..... $6 Cowen 354

‘ CEROPS oo cece eveaes 346, 497

—alutacea ...........00, 347

- angustata ......... eee 348

- antillarum ............ 496

—— bicincta.............. .. 350

Dicinctd .... cece ce eeees 351

bifasciata .............. 3850

—— calandriformis .......... 845

INDEX.

Page

Limnobaris calandriformis .... 348,

346, 356, 357

—— carbonaria...........4.- 345

—— carbOnarid, . occ cece .. 343

—— CONCINNA nvesvasees 348, 354

—— confusa .........00ee eee 546

——— CONFUBA vor veecnes 348, 477

—— cylindriclava............ 355

—— cylindriclavd ....6.eeeees 343

—— dentifer............000. 348

dentifer......0% .... 348, 349

—— desidiosa ...........0.- 351

—— desidiosa .......45. 352, 496

Giscreta....... cee eee eee 351

Aiscretd..cissccessseees 362

CVANPSCENS 2... cere eee 347

CVANESCENS 66... cece cence 348

SUNCVCA Lecce cece ences 354

languida .........-.00 349

—— languida ..cccccccsees 496

—— latidens................ 344

—— latidens ..... 0.600 343, 346

leucostigma ............ 352

leucostigma ..cccecseees 353

manducator ........... . 353

NASULA occa ceveces 346, 474

—— parilis ...... Sweeesveee 496

puterfer oevecvsecssvneee 348

—— PYFMHA 2. ee eceeeeaee 354

—— PYJPM@A. ve vevecvvee 418, 419

quadricollis ...... Cetes> 346

quadricollis ........ 3438, 344

recturostrls oe ee eee eee 349

Tufula ....... eee eee 354

PUFULE oc eeccevceeees 355

tabida ......... nee 349, 421

—— T-album ...... 343, 349, 421

truquii ......... eee eee 352

—— uniformis .............. 349

UNUFOrMUS ..cceeeee sg ewa b44

LIMNOBAROIDES ..........4. 355

Limnobaroides .....0.e0. 356, 357

EXPOSItA ss. sees eeeeees 356

——— EXPOSUA. ve veceees 355, 857

—— flavolimbata............ 357

plana... cece eee eee .. 306

Tinonotus .......06. centers 260

LISSOBARIS 6.1... cece ee ee eee 236

—— nigropiceus ............ 236

NUJPOPWCUS ov eeveeeeeee 246

LISSODERES ........0ee.eee . 47

subnudus.........0.e eee 48

SUBNUAUS occ ceveeceees 47

LITOBARIS.... 0.000005 weeeee 407

subpruinosa ...... sence 477

TAVUS vy vcccees gob ie ane aa ee 2, 1389

Page

LOBODERES .....0-+eeees0++ O8D

Loboderes ........6. 318, 386, 393

CUIUVENETIS ve cceeeecees 386

crassirostris ............ 386

CYASSITOSLIVS oe cee e eens . 387

—~—— flavicornis.............. 3885

JlAVICOTNIS Wee ee ceeee 400

glabriventris.......... .. 386

—— sulphureiventris ........ 385

sulphuretventris ....... 387

Lobodertnus ....ccecceeee 385, 458

busalis 6... ces eecceeees 458

C1AVALUS. ov eee ew ees 385, 458

LYDAMIS ..ccee eee eeeee ..-. 188

Dydamis.cccccececcceees 185, 189

angulus ..... ceveewesva . 188

cinnamomeus .......66 188

Dytertus oo. veces cucee Seeewns 343

Macherocnemis... 0.000000 126

MACROBARIS ........0 0000 eee 417

producta ........eeeeee 417

Muacrocopturus .....ccee eens 69

FAUSEEL Lecce eee eee 47

MATTE vicvcsvccccceees 70

MACROLECHRIOPS .......... 126

—— spinicoxis ....... seceees 127

MACROPTATUS .........0000- 186

Macroptutus oo... ccc cece 185

championi.............. 187

MADARELLUS .......-. e000 377

Madarellus...... 364, 387, 390, 402

CASEYL. Lecce eee eens 380

cuneatus .... cece eee eee 380

CUNEALUS . eee eeeee 378, 3882

—— dilutus ................ 379

—— dilutus ............ reese 318

— eruptus 2.6... . eee eee eee 379

CrUuUptus oo... eeeeaes 378, 380

impressus ...........00, 380

UMPES8US oe ee ee eee 378, 381

—— ineequalis ............. . 378

INAQUANS Cec cececcceces 379

—— jalapanus ......... vee 883

Jalapanus .......04. 877, 3738

—— levicollis .............. 383

—— levicollis ......... veces 378

MEXICANUS..... 6 eee eee 381

MEKUCANUS 6c ccc eececes 378

puniceicollis........ wee. 881

punicetcollis ...... .. 378, 382

quadriguttatus .......... 383

Quadriguitalus oo peccceee 378

ruficollis ..... wesc eens . 382

Page

Madarellus rufomaculatus .... 382

rufomaculatus ...... 378, 383

striatulus ..... vee ee eee 381

striatulus ...... Lecce eee 378

undulatus ........4. 377, 382

MADARIDES ............0040. 364

Madarides vrais ........ 360, 364

MADAROPSIS ............255- 401

sulcipectus .........--. 401

MADARUS ..... eee eee eee eee 364

Madarus .......... 268, 345, 360,

377, 384, 385, 401

astutus ..... ec cece eee 371

ASEULUS Loc cece eee eee 432

bilineatus .............. 375

—— bilineatus ..... ec cece eee 364

bisignatus ............-. 373

bistrigellus ............ 373

bistrigellus........+- 374, 375

—— bisuleatus ............ 376

bisuleutus .......... 372,377

—— brevilinea .........-..-. 374

——— chiriquensis ............ 367

ClavipeS..... eee ee ee eee 368

C1AVIPeS oc cece ccee renee 369

Cormix ........ cece eee 367

——— Corvinus ......+... wee. 366

COTUINUS. .seeeeeeeee BOA, 367

CYASSIVOSELTS Voce cece 386

distigma ....,.+--.eee- 372

—— distigma ...... 373, 374, 875

CDENUS coc eercoecreeees 377

eutoxoides .....-.-eee- 369

OXCAVALUS 2.0 eee eee eee 375

CXCAVALUS cove ec ccceenee 376

fusiformis .........000-5 376

PustformUus ove vececcees 401

—— heterosternuS ....-.2--- 367

——— jllustTis ... 6... eee eee 370

GUlustris cic cee cece e renee 377

—— _ ineequalis wee ceseeereees 378

—— laticollis.......se00: 377, 379

—— macrogrammus......-+++ 374

MACTOYVAMMUS. va eeeeees 375

—— mirandille ...... a 368

ochreoguttatus.......... 377

ochreuguttatus .....eeees 401

—— quadripustulatus ........ 5366

—— 4-pustulatus ......+- 360, 364

scaphiformis........-+-- 37

scaphiformts ..... ... 39, 871

—— singularis cececseveceess B17

—— tarsalis .......46+++ 365, 368

——tremulus ............ .. oil

—_— tumefactus .......-.-+- 369

tumefactUs....e.e-

. 84, 374 |

INDEX.

Page

Madarus velatipes........ 865, 368

VEPEICUSUS Lee ceveeecaees 372

— vitiosus........ vee 371

—— vitiosus ...... weeeee 308, 370

—— VOrtiCOsus ..... cece eee . 372

VOFELCOSUS woe cerca 373, 375

Madopterides......++05+ wees. 205

MADOPTERUS .....e.eee- ... 208

—— conradti ........eee eee 208

cylindricus ......-..+++ 208

Megops ....006 see e eee sete 171

Methyorvhind ..vceveree 407, 408

hispida .ivcevcceceeeces 407

Microbarts .......466% i... 416, 476

Microcleogonus .....eeeees ... LIZ

CUBIS Loe ees 117

Microhyts ... cece ce eees ... 399

MICRORHIANUS weve eeeeces 258

hamatus ...... ceveeeee 208

—— hamatus ...ceeeeeee ... 259

palliditarsis ........ oe. 208

MICROZURUS vw. eee ee eee 89

edentatus ......000ee eee 89

——rhombus .......... . 89

trinotatus ..... 6... ee eee 89

MICROZYGOPS ......e2000+++ 46

nigrofasclata .......++ 46

Mnemyne ....+> cece eee eeee . 47

MNEMYNURUS ..... e000. . 49

Mrnemynurus oo. cecrceccees 53, 54

caloderes ......-+45 wee. 90

—— caloderes .....scveeee 49, 51

——erythroderes .....---05 51

—— erythroderes ...... vane 50

———ignifer ....... been eeee . 50

—— 1gntfer vevervvvvceee . 51

longispinis ........-++- 52

lonyispints .sseeveeee 50, 54

—— phoenicoderes ...... . 51

—— phoenicoderes......+++005 50

—— poeciloderes ........-56 52

poectloderes wisseveerers 50

NANOBARIS ...... vee eee eens 474

Nanobaris ...cc ccc eee eeee 476

plumbata ........-+--5 AT5

YEtUSA Leese ee eee eeee 475

NeCUUS ci ccv cere ncn cneeees 155

NERTIDES 1... 0... ee ee eee eee 205

NERTUS wo. cee eee eee 205

Nertus ..cccees 206, 207, 208, 209

HNECUS .eseece vere reese 206

suturalis ......see eee ee 205

NICENTRUS ....- cece eens 312

rare 261, 298

Nicentrus

ind

509

Page

Nicentrus candidulus ........ 3l4

candidulus weeeee SLB, SIG

decemnotatus .......... 314

femoralis ........ee0055 316

femoralis ..ccevcecceees 315

forreri ...... wen ee seas 313

fulvipes...... eeceeerees OLD

INGENUUS veeeeeeees 312, 813

lecontet ..... ce eee eae .. ol2

—— lineicollis...........-.. 312

linetcollis ...... 299,318, 315

lobatus .......... veeeee BIG

lobatus ......4. seceeeee OLT

macilentus ....... wee. SIG

placidus .............- 318

puerilis ......... cece 315

—— testaceipeS ........ee . ol4

ODONTOBARIS ..seyeeeeeeees ALD

—— planirostris ........++-. AILS

ODONTOCORYNUS ......+. 317, 492

Odontocorynus .. 261, 292, 319, 829

CYEPeLUS ..eeeeeeeeeees BL

CHEPETUS. cee ceeeveee 290, 318

larvatuS ...eeeeeeeeeee 319

lurvatus .......... 292,317

—— latiscapus .........-60-- 313

latiscapus ...eeeeceeenee BIT

salebrosus........+e0+++- 492

salebrosus .......... 292,319

scutellum-album .....4.. 292,

317, 319, 492

—— sntura-flava............ 319

SULUIARPLAUE vac vaccines 317

tONSUUS Vi vecseevvnes 22. 298

OLIGOBARIS ..... ee ee eee oo. 473

—— breviscutum.........6-- 478

Oligopus pellitus ......6% wee. 409

ONYCHOBARIS ..... we ceee ees £20

Onychobaris .... 304, 390, 421, 425

——— AMDIG“ua vrececcreceees 422

AYMUPCS ove veeeaes .. 390, 422

CYUDPALA vue cece eens ». 420

dentitibia ...... 390, 891, 422

——— mystica .......% Cones woe 422

nicaraguensiS .......... 422

NiCarayUeNnstS ....60...6 B9V

punctatissima ...... wee. 422

—— punetatissima ......66. . 399

rugicollis ...eecceee 403, 406

SENECEA Lo. cece eee ee eee 422

OPTATIDES so. cee cece eaes .. 185

OPTATUS ........ voceeeeees 185

Optatus ....60.+0.+. 187, 188, 189

fasciculosus ......5..... 186

510

Page

Optatus inornatus....... we eee 186

UNOPNALUS 6... eee eeeeree 194

—— palmaris ........ +. 185

PALMANIS wicsceeveeeees 186

OrchestuMeruS ciceceeces 139, 146

WICKAAME voce vcccvcces 139

ORTHOMERINUS ........000- 358

—— pittierl ........... feiss 358

—— pittiert voce cecccccvvae 359

Orthomerus oc cececcccccecs 358

QRTHORIS ....--. eee eee eee 497

Orthorts oc cece ewe ces 357, 479

—— crotch oo... ccc ccc eees 497

—— cylindrifer ............ 497

Otidocephalus weveees 180, 180

Pachybarts occ ceccceee. 247, 474

POVOSA .eceserevaes wees 809

wanthoxyli..cecccceces .. 248

PANTOTELES..... 00000000005 181

Pantoteles ... ccc ccecaee 182, 184

albocinctus .......... .. 184

alboctnctus ...ceececees 181

dimidiatus ............ 184

dimidiatus.... 6.6... cee 181

flavofasciatus ...... eee. 182

flavofasciatus .......... 181

Glabriv0str is ooo eee cee 183

hirtimanus ............ 181

hirtimanus ...cceceveeee 182

-—— longimanus ............ 182

longimanus ........ 181, 1838

—— marmoratus............ 1838

MAPMOLALUS wo. ceeceeees 181

tenuirostris ...... wees. 183

—— tenutrostris ........ 181, 184

PANTOTELIDES..........0055 1e]

Parallelosomus .......... 207, 417

PARAMNEMYNE ..........4. 48

—— ATCANA vee ceccveceees 48

—— decemcostata .......... 48

— decemcostata ...cccerecns 49

leseleuct... ccc cece eeees 48

melanosceltS oo. .cccecves 49

pulchella .............. 49

Paratimorus cocceccceccces 35, 36

ganglbauert ......646. 35, 37

Pardisomus soe ccccvccececes 185

Pelenomus cavifrons oi ..cceee. 151

Peltophora icc ccecccccvnee » 20

PRELTOPHORUS ......-.00000. 20

—— jordani ..............., 21

leucomeldS ... cece ce cecee 20

polymitus.............. 20

polymitus wo... .e. Sena 21

INDEX.

Page

Peltophorus polymitus, var. leo-

pardinus ...... cece eee e eee 20

PERIDINETELLUS........000+ 1&0

subnudus ..........000. 180

PERIDINETIDES .........-.. 171

PERIDINETUS .......... 171, 484

Peridinetus ......ceeues 170, 180

CAaDUS......6 ere . 172, 484

CONUS occ cece cc n ce cenee 173

— coccineifrons .......... 176

COCCINEYFTONS 66... see e ees 177

collaris .............46- 176

— costatus .............. 179

cretaceus ........6. 173, 484

CYELACEUS 60sec ceeee 172,174

distinctus .............. 173

ivroratus .......... 175, 484

—— WU TOratus we... cece eeees 182

——— ]@tus.. cc cece cece cence Via

lateralis ............0. 175

——$—. INNELD. Le ccccccccccees 173

—— luctuosus ....cccecceees 173

marmoratus ......6. 175,176

MALMONEUS ceceeseceeee 175

melastomz ..........6. 174

melastUM@ ..veceeceses 175

NIVEOPICLUS eee eeeeeee 173

nodicollis .............4. 178

—— opacus ............000. 178

OPACUS wee eeeececaceees 179

quadrimaculatus ........ 179

—— quadrimaculatus ........ 172

rufotorquatus .......... 177

Sellatus oo. ce ccc ccc eeee 178

stigmatipleura.......... 179

—— trifasciatus ............ 174

trifasciatus ........ 172,175

—— zinckent ....ceceeeceee. 175

PERIGASTER ... 0... 000. scene 151

tetracanthus............ 152

Phacelobaris singularis ...... 194

PHILEAS 2... . cece eee eee 34

Phileas cic cecc cece ceccccane 35

eranulatus ............ 34

PHILENIS .....-. cece eee wees 43

—— flavipes........... veer. 43

JLAMpPeS voc ceccccccveees 44

fuscofemorata .......... 44

Suscofemorata ........4. 43

PHILIDES ...........0.. 129, 481

anthonomoides.......... 129

anthonomotdes ......006 481

COMANDS ..... eee eee ee eee 481

PHILINNA woe cece e eee eee eee 128

PRUNNA. cece cee 129, 130

bicristata ....... cee eee 129

Page

PHYSOBARIS ...... 0. eee eee 452

intricata ..........00.. 452

MEVUCALA vererrvceceees 453

—— nodosa .........-. ee eee 452

PHYTOBIL oo. cee cece eee eee 15)

Phytobius sev ccecccccvvccsces 144

PUAZOTUS. eee cece eens 9

PIAZURUS 2c. eee eee eee eee 9, 130

Piazurus vecsececeae. seers 1

alternans ..........0-5. 18

alternans ...... 20 ee eee 10

bidentatus ........0..00- 16

—— bispinosus ........ 2.000 15.

DUfO we cececceccccecees 14

Californicus .......eeees o

caprimulgus .....-.....- 12

caprimulgus ......4- 9,11,14

—— centrali-americanus...... 19

—— centrali-americanus ...... ik

— ciliatus ............-0.. 16

—— C111AKUS Lee cece cece 10

—— condyliatus ............ 18

—— condyliatus ........020. 10

—— ephippiatus ............ 180

—— guttatus.... cc ccereaee 14

—— guttularius ........466. 15

—— maculipes.............. 15

maculipes ...... 9, 10, 14, 16

melanostictus .......... 17

-—— melanostictus ........ 10, 180

helleri ..... Jos ese ese 13

hellert oo eee cece 10

notabilis 2... . 6. eee 10, 14

ObESUS LLL ee eee eee 20

oculatus ... 0... ce eee 105

pallidicinctus .......... 16

pallidicinctus ........65 10

—— plagiatus .............. Ji

plagiatus ......0...0 00. 9

—— quadratus .............. 19

QUadTAlUS 66... eee eee ee li

——rana..... Pree ererines 18

TANA wivvccececcseceues 10

saginatus ............ 10,15

spretus .............4.. 13

yk 2 9, 14

stellarits . 6... eee eee 16

—— stigmaticus ............ 17

—— stigmaticus .........2... 10

SUCCIVUS ..... cee ee eee 14

SUCCILUS. .o eee eee ee eee 10

—— sulphuriventris ........ 16

sulphuriventris 10, 14, 56

—— trunsversus .......... 12,138

—— trrangulum ......6..05. it

trifoveatus ............ lt

Page

Piazurus trifoveatus ........ 9,12

Pimarus oo. eee 19

Pithecomus oo... cc cee . 479

PLATYBARIS ........0000000- 247

lamellifer .............. 247

lamellufer oo... ccc eee 349

PLATYONYX ........00..005- 329

Platyonyw .....006..0006 327, 494

ormatuS ........... 0008. 329

Plaves ccc ccc ec cue eneee 364

Plesioharts emula. cc... cece 444

albilatus ... 6 .c ec eeee 473

Aigpunctd oo. cc ceceveeee 455

PLOCAMUS..........0.00 00008 341

Plocamus vo... cece eee eee 419

clavisetis ..........-00- 342

—— clavisetis ........6. 341, 3438

— echidna................ 342

—— echidna .........4.. 341, 343

hispidulus..........+-4- 342

hispidulus .....+646+ 341, 348

—— hystrix .......-. eee eee 343

Aystriv voce ce eeeee 341, 342

Peecilma ciliatum oo... cece 16

furfuraceum ... cc. eeee 85

PCGCILOGASTER ......e ee eee 44

Poeeilogaster oo. .cereceeees 65, 66

brevis ..eee ee eee teens 45

loOngqior weveceeceecerees 45

PRIONOBARIS .....eeeeeeees 260

ASPET... eee eee eee eens 260

GSPCr vee vec eceeeeeeence 286

PROCHOLUS 2... eee eres 484

biplagiatus .....-...06- 484

PSRUDAMBATES ..... eee eeee 171

Pseudambates occ ccccveceees 484

biplagiatus ........---- 171

—— biplayiatus ......- +00 484

PSEUDEUTOXUS ....eeeeeees 362

Pseudeut0Lus. oc ccvevecveneee 363

filirostvis ........+0-06- 363

PSEUDOBARIS .....-.+0e000- 425

Pseudobaris .... 897, 418, 423, 433,

440, 441, 452, 457, 472, 476, 477

abrupta ....ee eee eens 449

ADTUPtA vee ewer cenrrcees 450

acutipennis .......+++-- 445

acutipennis .... 423, 441, 444,

446, 447, 448, 449, 451, 455, 468

—— angustula ......006- 418, 451

apicalis ........++- sees 440

_— apicalis .... 441, 442, 443, 446

atitlana....... cee eee ees 436

— biguttata ........eeee- 427

—— biguttata ...cereeeerees 428

—— pinotata ......eeeeeeee 438

INDEX.

Page

Pseudobaris binotata... cece... 433

biolleyi ..... 0.0... ee eee 436

—— callosipennis........ 435, 444,

445, 446, 447, 450

—— carinipectus ............ 433

—— carinipectUs .occeccceees 425

—— costaricensis ... 0.06. 439, 440

—— costirostris .........06. 43]

—— COSTUOSLIIS eee eee 432

—cribrella ...........06- 437

—— cribrella vic ce eee 448, 450

—— cribripennis ....,.....6. 438

—— cribripennts .....ees 441, 443

—— cylindricollis .......... 435

—— cylindricollis 6... 64. 434, 458

—— dentipes ........... 22. 436

AENbipeS. vc cv vcvcvencees 437

Ciscreta..... eee cece eae 44]

AISCVELA vec seceecvccenes 437

disparilis ......ee eee eee 428

——— dispartls voc. cee eeeeee 429

—— diversa ...........000e> 450

——— UiVersl eee c reece eens 449

dividua........0ee ee eee 449

Uividud vi vcvecceccveeee 450

fasciculata .......eeee 433

fasciculata... 6... cee eeee 434

fraterculus .........0.. 431

—— pibbicoliis ..........0665 446

GUYANA vvvvecsevnees 437

—-- glabripennis ........-... 443

guttifer ..... ccc eee ee eee 44]

irregularis.,........+.04- 429

UWPEGULATIS. vo vce ee eees . 431

leucostigma ..........-- 434

lucenS ...ee eee eee eee 449

——— IWEENS vee cccenes 426, 456

lucida wo... cee eee eee 448

— lucida .. 397, 425, 442, 456

—— [UCHUWOSH cece en cnnee 439

minuscula.......eeeeee 447

—— MINUSCULA Loe cee cece 444

multiguttata..........6- 454

—— mutabilis ..........06.. 444

—— NBVIUS 2... se eee ee eeeee 4355

NEVIUS vevserccccnrveas 426

—— NUJTINA ccc cece ncaes 435

—— niveoguttata............ 429

—— notata ...... cee ce ee eee 439

—— ocellata....... scene eee 44]

—— octonotata....... 2.0 ee 432

OctOnotUtd 6... cree eevee 426

oscillanS ......eeeeeeee 432

OSCLLLANS . vo cece eee 436

parallelipennis .......... 449

—— parallelipennis ....++00-+ 443

DS Z

Pseudobaris perexigua ...... 444

plicata ........ cc eee eee 446

plicatd vi icccccceeccves 449

puncticollis ......65 449, 450

TUQIPENNIS. .e ee see e ee eee 4433

——— FUP PENNIS. .. Levees 447, 448

—— scabrida ..........00ee 448

—— sCUDridA vce cece eee 444

—— semeSCeNS ........e ee eee 458

—— senescen8s ...... 423, 434, 487

—— sexguttata............-- 428

——— sINU0SA ..... eee ee ee ee 429

——— SINUWOSA » seve eae 430, 431

—— stigmatica............4. 445

——_ StIGMALICA. Lev eececeeee 441

——— BUDANEM. eee cee reeess 450

subcaudata ......+0265- 446

SUBCAUAATE ieee necaees 441

sublineata..........0065 430

SUDLINCALA 6. cece eee eee 43]

subparallela ..........4- 442

subparallela ........ 443, 444

subrugosa .... ee cee ee eee 447

SUDSCUDIUSA vv eee eee e eee 423

suturalig ......e.eeeee 4380

tibialis ......... eee eee 437

—— undulata .........-.... 439

—— undulata .......46. 432, 433,

437, 440, 445, 469

PSEUDOCENTRINUS .....+44-- 325

deceptus .....-. eee eee 326

AeCEPtUS .eesevccrcances 325

—— hybrida.............06- 326

—— hybrid occ ccc nees 325

—— ochraceus ........6..05- 326

OCHYACEUS wicevceees 325, 493

Pseudocholus ... 0.000000 171, 484

biplagiatus... 6... eee eee 171

PSEUDOGEREUS ........000- 319

Pseudoyer@us. sce. ccecccvcees 320

macropterus ..... 2662-6 320

-—— macropterus ......-. 295, 326

PSEUDOLECHRIOPS ........0. 90

megacephalus ........4- 90

Pseudoprazurus voc cecceves 11,18

centralt-americanus ...... 19

Pseudopinarus ....0e eee 10, 18, 19

condyliatus ...cveceeeee 18

PSEUDOPTATUS....... 00 eeee 187

Pseudoptatus ......4+ 185, 252, 454

dentipes...........0.00% 187

PsEUDORHIANUS ............ 244

Pseudorlanus ....ce cc cvcees 245

compressirostris ........ 245

COMpPHESSUTOSUS vee veces 331)

-LMPTeESSUS .. 6... . ee eee 245

O12

Page

Pseudorhianus impressus .. 244, 317

PsEUDORTHOMERINUS,....... 359

-—— consanguineus .........- 359

PSEUDORTHORIS .....-.eeeee 357

Pseudorthoris .ceccvcccccvecee 497

GeVEXUS..... ee cece : 358

CVELUS Woceccncnnencnes 357

PSOMUS ..... cece cece ceeeces 127

PSOMUS weveccees ei eeeeneeas 1

caseyi ....... Visvevves 127

A Fees e's 128

POUtUS .ecccseveeee 127, 128

—— quadrinotatus .......... 128

violaceus ........0ee ees 128

PTERACANTHUS. weeeeeeeeeee 170

Pteracanthus........ 129, 155, 172

: smidti ..........6. .... 170

——_ 8MUEE de eee ee ce cenes 176

RADAMUS .......... see ae a's 387

Radamus ..... ones pease 390, 402

QTCUS Cece cece ne neaee 387

—— atratUs wo... cece eee eeee 387

RAIANINUS 2... ec eee eee e ees 243

——- carinirostris ............ 244

CATINTOSETUS veces eee 248, 303

niveiscutumM .........6.. 244

NAUVELSCULUM oe vecceceves 243

RHIANOPSIS 0... cece eee eee 235

ferrugineus ........... . 236

Jerrugineus ...seeees oo. 285

RHIANUS oo. e eee cei eee eens 242

Rhianus .... 227, 235, 248, 250, 252

UMPPESSUS oo cee eceeeeees 245

mexicanus ............ 243

MEXICANUS 66. eve ees 217, 244

NUVEISCUTUIN vv vevecceces 244

Rhincbatus marmoratus .. 175,176

Rhinoneus perpendicularis .... 139

Rhoptobarts oo... cece cee eeee 357

Rhynchenus caprimulgus...... 12

——— deplanus .ecccceeccecae 71

festivus ...... besues vee 895

UTOTALUS eevee ee eecees 175

SCLUTUS occ e eevee eaeees 91

smtdtt? ..........66.3.. 170

Rhyssomatus .........04. 285, 454

RHYTIDOBARIS ...... ebeveees 4C6

Rhytidobaris ............ 407, 452

granulosa ........0..... 407

——horrida .........0. eee 407

horrida . 2... cc. 0. .. 406, 408

Scambus galeatus .... 185, 188, 195

SOLARTA. Lee eee 390

Solaria ..ceeseeee bo ecesauas 422

INDEX.

Page

Solaria acutidens ............ 3841

—— acutidens .......... 390, 392

——— AMINES. everecccnees 392

—— compressicollis.......... 893

compressicollis ...... 300, 891

— curtula ......... cece eee 391

—— curtula voc cecscaees 390, 392

—— curvata ...e. ec cece ce eee 392

———- CUTVAEH Lecce cnc neenes 390

—— dentitibia occ ce cccenes 381

—— gibba.............0000. 3892

——_ ghd. eee cecccevcues 390

UENMIA wee icccccccceaes 391

Sphalerocholus ........00e0es 484

SPHENOBARIS ..........000- 401

Sphenobaris oo. cece eee neces 402

-—— quadridens ............ 402

Stenobaris avicennie .......... 416

Stethobaris ovata ....... 0000 399

STETHOBAROIDES ..........4. 399

nudiventris ..........4. 399

— piliventris.............. 399

STICTOBARIS........0..0000- 420

Stictobarts oo... cece ccc eeeee 408

cribrata...... 0... eee eee 4°0

—— pimalls ..... cece ce eens 420

STRONGYLOTES.............. 206

brachialis .............. 206

brachialis ....... 0.0 207

—— lemniscatus ..........4. 207

—— parallelus .............. 207

SQUAMUNS Cece ceecceves 207

SYMPAGES oo ccc cerccccccnces 185

TACHYGONIDIUS ............ 138

—— dasypus................ 138

—— phalangium ............ 138

TACHYGONINA ..........005, 131

TACHYGONUS ....eee eee ee 1381

Tachygonus .........4.. 180, 134

—— bidentatus........... ee 137

bidentatus .......... 132, 138

—— bifasciculatus .......... 135

bifasciculatus .......... 182

—— CASEY1 «6... ee eee eee eee 186

COREYL. ove cece eee e eee 132

—— curvicrus .............. 133

CUPVICTUS occ ce eee eee 131

—— fasciculosus ............ 134

fasciculosus ........ 132, 185

flavisetis ........ eases 137

—— flavisetis ... 0... cc cee 132

flohbri...............0.. 187

SONI ccc cece cans 132

— laticrus .............. .. 132

Page

Tachygonus laticrus ...... 151, 136

lecontet ......... 00. 131, 185

nigrocristatus .......... 134

—— nigrocristatus .......... 131

pectinisquamis.......... 135

pectinisquamts .......... 132

—— phalangium oo... cccceee 138

quinquedentatus ........ 132

quinquedentatus 131, 133

rhombus .............. 136

—— Thombus. oc... c ccc ceces 132

—— semirufus .............. 138

SEMIUFUS Coo eee eee eee 131

——sinuaticrus ......... ,.. 136

SMUALICIUS 6. eee eee 132

SPINIPES Wc cececiccccres 135

Tachylechriops ........0 000s 90

Tachyopus oc... ccc eee ceeee 131

Telemus ........ 185, 188, 189, 191

TIMORUS 2.0... . cee eee eae 33

TUMOrUS oo cee 34, 35

suturalis .............. 33

—— tuberculatus ............ 35

—— tuberculosus ........0.4.% 33

TRACHYBARIS ..........000. 453

celata ............000. 453

TRACHYMEROPSIS............ 207

Trachymeropsis . oc... cee ces 209

palmipes .............. 207

Trachymerus ... 6. c ccc eee 207

TREPOBARIS .............0.. 423

Trepobaris.... 6... cece eee 477

elongata .............. 424

elongata... .. 6... cee 423, 425

-—— inornata .............. 424

TE or 425

perlonga .............. 423

perlonga oe. eeeeeeee, 424

yueatana .............. 424

Yyucatana ....... cee eeee 425

TRICHOBARIS§ .............. 411

Trichobaris. oo... 0c cece 408

compacta .......... cee 4138

COMPAA Lovee eceecces 412

cylindrica ..........0... 414

CYTRAVICA 6... ca 412

mucorea .............. 413

—— mucorea,.........4. 412, 414

pellicea... 2... ......00, 414

pellicea ..... 6.6668, 412, 415

00D 0) Mn 413

SOVOr wee eeeee veaees 412, 414

tELANA «6.1.2.4. 412, 414, 415

trimotatd ..eeeceeee 411, 412

a » var. mucorea...... 4138

Page

TYTTHOBARIS .........0000 475

Tytthobaris .......6. serene 476

cavimanus ......--.6-+ 476

Nenosomus.....sceevceececee 154

ZaGLYPTOIDES ....----- 00055 495

ferrugineus ........---- 496

ZAGLYPTUS ....-----08: 339, 495

Zaglyptus «11.6... seee- 341, 496

earinifer .......0+--05- 340

Tk 33

costatus.......20 ee ees 340

Costatus ccc. cece neces 339

crispuS .....-. 62s ee eee 340

—— CVISPUS . 1... eee ees 339, 341

——— minutissimus ......---- 341

—— minutissimus......-- 339, 495

quadriguttatus........-. 495

Strtatus 6. cece eee 341

sulcatus... cece eee ees 340

ZURUS weeeeee cs ee sc eeeeees 87

ZUrus voce ccc ccc cece 45, 89

aurivillianus.........-+-+ 88

aurivillaanus .. 0.6 eee 87

—— bescket .......- 0c eens 88

coccinatus........-++++5 87

—— maculicollis ..........-- 88

maculicollis ..... 06600 es 87

—— sanguinicollis ........+- 87

ZYGOBARIS ...---- eee seers 330

BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, April 1909.

INDEX.

Page

Zygobaris ...... 248, 325, 331, 333

—— miten8. 0... eee eee eens 330

tristicula ... 0.06... - eee 330

tristicula . 6... cece eee 332

wanthoryli voc. eee es 35

Zygobarovdes . 6.6... eee eee 329

SChWwarst oo. ee eee 330

ZYGOMUCIUS voce eee 109, 118

ZYGOPINA ... 00-0 e eee 1,479

ZYGOPS eee eee ees 21

LYGOPS voc vcr ev vvee 1, 9, 20, 32, 69

OPNIS oe eee ees 26

——ameenula .........-+-6: 27

—— ameenula ... 6.060% 22, 28,75

—— cataleuca .......+--005- 30

—— cataleuca ........ eevee 23

—— cinctipes ....... eevee 30

-—— disjecta ......... 0 eee eee 28

——- disgecta . 0.0... eee ees 22

erythropyga ........-+++ 24

erythropyga oo ..esevraes 22

—— furfuraceus ... 066... 008 85

histrio ....... cere eee 26

1 22

impressiventris ... s.r eres 29

leopardinus 6.6.00. 50+ 20, 21

leucogaster... 6.00. e eee es 31

-—— maculipes.......-..-++- 29

MACUIUPES ocr rere res 23, 30

—— maculiventris ........-- 26

maculventits vcs 22, 23, 25

313

Page

Zygops mexicana ....-...+++- 25

mexicana ...... 21, 22, 24, 26

——_ Minuta 26... ccc eee 31

ornaticollis 6.0... eee 43

quadridentata ........-- 27

-—— quadridentata .......++: 22

—— rubricollts ... 60.06 aes 24

—— rufitorquis......-..--++: 23

—— rufitorquis... 0... errr ees 21

—— rufomaculata ........-- 24

—— rufomaculata ....++++ 22, 46

——— SUENICU nee 23

—— seutuluta .. 0. cece eee 29

—— sellata 20... eee ee eee 28

—— sellata ...... 0. even ee 22,29

—— semialba ..... cee eeees 29

——— SEMINIVEUS. oe ee ee ees 20, 21

—— signativentris .......+5+ 25

— sobrina .......-. eee eee 31

—— gsobrinad .. 6... eee eee 23, 380

submaculata oo... cece nee 26

SUfFUSUS . 6. ee eee eens 20

tridentata ........-5.e6- 29

—— tridentata ......-+0005 22, 28

—— trivittata .......- eee 30

——- trivittata........6 28, 27, 51

—— viridicollis..... ccc eevee 43

—— vitticollis ...... sence 24

vitticollis . occ cc ees 2h

ZYGOPSELLA oe. eee cee ees .. 42

—— ruficauda ,.....-.--5+6: 42

3 UU